WO2021175146A1 - Frequency compensation method and apparatus, network-side device, terminal, and storage medium - Google Patents
Frequency compensation method and apparatus, network-side device, terminal, and storage medium Download PDFInfo
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- WO2021175146A1 WO2021175146A1 PCT/CN2021/077838 CN2021077838W WO2021175146A1 WO 2021175146 A1 WO2021175146 A1 WO 2021175146A1 CN 2021077838 W CN2021077838 W CN 2021077838W WO 2021175146 A1 WO2021175146 A1 WO 2021175146A1
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- frequency compensation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
Definitions
- This application relates to the field of communication technology, and in particular to a frequency compensation method, device, network side equipment, terminal, and storage medium.
- Multi-point coordination is an important technical means in wireless communication systems.
- Distributed transmission through multiple distributed transmission points can improve the coverage of the cell edge and reduce the delay and signaling overhead caused by handover.
- HST-SFN Single Frequency Network
- HST-SFN High Speed Train-Single Frequency Network
- BBU Base Band Unit
- the Doppler frequency shift generated by the signals from multiple RRHs forms a Doppler spread, and because the train moves fast, the Doppler frequency shift may vary widely, which causes the terminal to be unable to do so. Demodulate the downlink signal well.
- the embodiments of the present application provide a frequency compensation method, device, Network-side equipment and terminals are used to implement frequency compensation for the transmission frequency of downlink transmission.
- the embodiment of the present application provides a frequency compensation method.
- the frequency compensation method is applied to a network side device and includes:
- the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal includes:
- the frequency compensation value corresponding to each first TRP is determined by using the first uplink signal.
- the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal includes:
- a frequency compensation value corresponding to at least one first TRP is determined.
- the performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result includes:
- At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- the determining the reference point for frequency compensation includes:
- the setting rule includes any one of the following:
- the reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device
- the reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
- the reference point indication information includes any one of the following:
- the reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;
- the reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
- the reference point indication information is indication information about the first uplink signal; wherein, the network side device uses the frequency offset estimation value estimated by the first uplink signal indicated by the indication information as the reference point.
- the determining the reference point for frequency compensation includes:
- the at least one first TRP determines the reference point according to the frequency offset estimation result
- the central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
- the at least one first TRP determining the reference point according to the frequency offset estimation result includes:
- the at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
- the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
- the at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point;
- the central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of at least one first TRP according to the frequency offset estimation result and the reference point.
- the at least one first TRP determining the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point includes:
- the at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
- the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
- the second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP;
- the second TRP is used to characterize a part of the TRP in the first TRP
- the third TRP is used to characterize another part of the TRP in the first TRP.
- the determining the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP includes:
- the second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself
- the third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal includes:
- the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value
- the central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
- the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value includes:
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values
- the at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
- the at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- it also includes:
- association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- An embodiment of the present application provides a frequency compensation method.
- the frequency compensation method is applied to a terminal and includes:
- the first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one
- the frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- the first uplink signals used for frequency offset estimation of at least one first TRP are the same.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- it also includes:
- association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation method further includes:
- the sending the first uplink signal to the network side device includes:
- the first uplink signal is sent to the network side device.
- An embodiment of the present application provides a frequency compensation device, where the frequency compensation device is used for network side equipment, and includes:
- a receiving module configured to use one or more first transmission receiving points TRP to receive the first uplink signal for frequency compensation sent by the terminal;
- a frequency compensation determining module configured to use the first uplink signal to determine a frequency compensation value corresponding to each of at least one first TRP;
- the transmission frequency determining module is configured to determine the respective transmission frequencies of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- An embodiment of the present application provides a frequency compensation device, wherein the frequency compensation device is used in a terminal and includes:
- a generating module configured to generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device
- the sending module is configured to send the first uplink signal to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal
- the uplink signal determines the frequency compensation value corresponding to each of the at least one first TRP, and determines the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- An embodiment of the present application provides a network-side device including a memory, a processor, and a program stored in the memory and capable of running on the processor.
- the network-side device includes a plurality of remote radio heads TRP, and the processor The following steps are implemented when the program is executed:
- the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
- a frequency compensation value corresponding to each of the at least one first TRP is determined.
- the performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result includes:
- At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
- the at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- it also includes:
- association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- An embodiment of the present application provides a terminal, including a memory, a processor, and a program stored on the memory and capable of running on the processor, and the processor implements the following steps when the processor executes the program:
- the first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one
- the frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- it also includes:
- association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation method further includes:
- the sending the first uplink signal to the network side device includes:
- the first uplink signal is sent to the network side device.
- the embodiment of the present application provides a non-transitory computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the frequency compensation method for the network side device are implemented.
- the embodiment of the present application provides a non-transitory computer-readable storage medium on which a computer program is stored, and is characterized in that, when the computer program is executed by a processor, the steps of a frequency compensation method for a terminal are implemented.
- the frequency compensation method, device, network-side equipment, terminal, and storage medium use one or more first TRPs to receive the first uplink signal for frequency compensation sent by the terminal, and use the first uplink signal to determine The frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP for downlink transmission is determined according to the frequency compensation value corresponding to each of the at least one first TRP, so that the downlink transmission is performed on each first TRP.
- the frequency-compensated transmission frequency can be used for downlink transmission, thereby realizing frequency compensation for at least one first TRP during downlink transmission, effectively eliminating Doppler spread on the terminal side, and improving downlink transmission performance. performance.
- FIG. 1 is a flowchart of a frequency compensation method provided by an embodiment of the application
- FIG. 2 is a flowchart of a frequency compensation method provided by an embodiment of the application
- FIG. 3 is a block diagram of a frequency compensation device provided by an embodiment of the application.
- FIG. 4 is a block diagram of a frequency compensation device provided by an embodiment of the application.
- FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of this application.
- FIG. 6 is a schematic structural diagram of another terminal provided by an embodiment of this application.
- FIG. 7 is a schematic structural diagram of a network side device provided by an embodiment of this application.
- Multi-point coordination is an important technical means in wireless communication systems.
- Distributed transmission through multiple distributed transmission points can improve the coverage of the cell edge and reduce the delay and signaling overhead caused by handover.
- the deployment mode of SFN is usually adopted, which is referred to as the HST-SFN scenario for short.
- a typical transmission scheme in the HST-SFN scenario is to send downlink signals from all RRHs connected to one BBU at the same time.
- signals from multiple RRHs may experience different Doppler shifts (for example, Doppler shifts from one or some RRHs are positive Doppler shifts, from another one or some
- the Doppler frequency shift of the RRH is a negative Doppler frequency shift), thereby generating a Doppler spread including a positive and negative Doppler frequency shift.
- the Doppler frequency shift may vary greatly, which will cause the terminal to not be able to demodulate the downlink signal well.
- the embodiments of the present application provide a frequency compensation method, device, network side equipment, and terminal, which are used to eliminate the Doppler spread experienced by the downlink signal.
- the frequency compensation method, device, network-side equipment, terminal, and storage medium provided by the embodiments of the present application can be applied to a wireless communication system or a wireless and wired system.
- a wireless communication system Including but not limited to 5G systems (such as NR systems), 6G systems, satellite systems, car networking systems, Long Term Evolution (LTE) systems, and subsequent evolution communication systems of the aforementioned systems, etc.
- 5G systems such as NR systems
- 6G systems such as NR systems
- satellite systems such as NR systems
- LTE Long Term Evolution
- the network-side equipment provided by the embodiments of this application may include, but is not limited to, one or more of the following: commonly used base stations, evolved node base stations (eNB), network-side equipment in 5G systems (for example, the following Equipment such as next generation node base station (gNB), transmission and reception point (TRP)).
- commonly used base stations evolved node base stations (eNB)
- eNB evolved node base stations
- 5G systems for example, the following Equipment such as next generation node base station (gNB), transmission and reception point (TRP)).
- gNB next generation node base station
- TRP transmission and reception point
- the terminal provided in the embodiment of the present application may be called a user equipment or the like.
- Terminals include, but are not limited to, handheld devices and vehicle-mounted devices.
- it may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), etc.
- UMPC Ultra-Mobile Personal Computer
- PDA Personal Digital Assistant
- Fig. 1 is a flowchart of a frequency compensation method provided by an embodiment of the application.
- the frequency compensation method can be used for network-side equipment.
- the network-side equipment may include a central processing unit and TRP (Transmission Reception Point).
- TRP Transmission Reception Point
- the configuration or instruction of the network side device can be executed by the central processing unit or TRP; as shown in Figure 1, the method includes the following steps:
- Step 110 Use one or more first TRPs to receive a first uplink signal for frequency compensation sent by a terminal.
- multiple first TRPs are grouped (divided into one or more TRP groups), and one or more TRP groups use a part of the first TRPs in the group to perform the first uplink signal sent by the terminal for frequency compensation. Received. For example, each first TRP group uses one first TRP to receive the first uplink signal.
- Each first TRP receives the first uplink signal sent by the terminal for frequency compensation.
- the first uplink signal may be SRS (Sounding Reference Signal, channel sounding reference signal), random access signal, and other reference signals that can be used for frequency compensation.
- the random access signal can be sent through PRACH (Physical Random Access Channel).
- the TRP in the embodiment of the present application may be an antenna unit group of a network side device, an RRH, and so on.
- Step 120 Determine the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal.
- At least one TRP of the one or more first TRPs determines its corresponding frequency compensation value.
- the first uplink signal when used to determine the frequency compensation value corresponding to at least one first TRP, the first uplink signal may be used to determine the frequency compensation value corresponding to each first TRP, that is, each first TRP Use the first uplink signal to determine its own corresponding frequency compensation value. That is to say, the number of the first TRP for determining the frequency compensation value is not specifically limited here.
- each first TRP when the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP, it may include determining the frequency compensation value for each TRP group, and further determine The frequency compensation value corresponding to each first TRP is obtained.
- the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
- the first uplink signal can be used to determine the frequency compensation value corresponding to the TRP group, and the frequency can be compensated.
- the value is used as the frequency compensation value corresponding to each first TRP in the TRP group. In this way, if the frequency compensation values corresponding to multiple TRP groups are determined, the frequency compensation value corresponding to each first TRP can be further determined.
- the frequency compensation value corresponding to each first TRP may be determined according to the Doppler spectrum of the first uplink signal, or the frequency compensation value corresponding to each first TRP may be determined according to the first uplink signal.
- the frequency offset estimation value of the signal determines the frequency compensation value corresponding to each first TRP.
- Step 130 Determine the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- the frequency-compensated transmission frequency can be used, so that the downlink Doppler shift received by the terminal from the first TRP can be controlled within a small difference range (That is, the Doppler spread is eliminated), which can reduce the error of channel estimation and improve the performance of downlink transmission.
- the first uplink signal is used to determine the frequency compensation value corresponding to each of the at least one first TRP, according to the at least one
- the frequency compensation value corresponding to each of the first TRP is determined, and the transmission frequency of at least one first TRP is determined for downlink transmission.
- the frequency-compensated transmission frequency can be used for downlink transmission.
- the frequency compensation for the first TRP during downlink transmission effectively eliminates the Doppler spread on the terminal side, and also improves the performance of downlink transmission.
- the use of the first uplink signal in the step 120 to determine the frequency compensation value corresponding to each of the at least one first TRP may be implemented in but not limited to the following implementation manners:
- the frequency offset estimation may be performed on the first uplink signal corresponding to the at least one first TRP to obtain the frequency offset estimation value corresponding to the at least one first TRP.
- the first uplink signal corresponding to each first TRP may be the same uplink signal or different uplink signals.
- the frequency offset of the first uplink signal corresponding to a first TRP in each TRP group may be estimated to obtain the frequency offset corresponding to the TRP group estimated value.
- the frequency offset estimation value corresponding to the TRP group in which any first TRP is located is further used as the frequency offset estimation value corresponding to the first TRP.
- each first TRP determines the frequency compensation value based on the same reference point, which can ensure that the Doppler received by the terminal after compensation is similar.
- the mutual difference between each first TRP frequency compensation value is equal to their one-way mutual Doppler difference.
- the reference points corresponding to each first TRP may be the same reference point.
- each first TRP when each first TRP is divided into one or more TRP groups, the reference points corresponding to each TRP group may be the same reference point.
- a frequency compensation value corresponding to at least one first TRP is determined.
- the frequency compensation value corresponding to each first TRP may be determined according to the frequency offset estimation value corresponding to each first TRP and the same reference point corresponding to each first TRP.
- the frequency compensation value of the n-th first TRP is f r -f n .
- the n-th first TRP should send the downlink signal at the frequency f x , it needs to be adjusted to send the downlink signal at the frequency f x +f r -f n .
- the reference point may be 0.
- the n-th frequency compensation is a first TRP -fn. Assuming that the n-th first TRP should send a downlink signal at the frequency f x , it needs to be adjusted to send a downlink signal at the frequency f x- f n .
- the frequency of the downlink signal from any first TRP received by the terminal will be around f x + f y , where f y is any first TRP The difference between the frequency compensation value and the Doppler shift from the first TRP to the terminal.
- the first uplink signal can be used to estimate the frequency offset, obtain the frequency offset estimation result, and determine the reference point for determining the frequency compensation value, and according to the frequency offset estimation result and the The reference point is to determine the frequency compensation value corresponding to each first TRP, which can achieve the effect of eliminating too much Doppler extension range received by the terminal.
- the determination of the reference point for frequency compensation in (1-1-2) can be implemented in but not limited to the following implementation manners:
- the reference point used to determine the frequency compensation value may be determined by the network side device. For example; according to some predefined rules to determine.
- the setting rules in (1-2-1) may include, but are not limited to, any of the following:
- the reference point is the frequency offset estimation value or the frequency compensation value corresponding to the designated first TRP determined by the network side device;
- the reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is an uplink frequency point determined by the network side device.
- the above (1-2-2) may be: the reference point is the frequency offset estimation corresponding to the designated or selected TRP group Value or frequency compensation value; the above (1-2-3) may be: the reference point is the frequency offset estimated value with the largest absolute value among the frequency offset estimated values corresponding to each TRP group; the above (1-2-4) may As: the reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each TRP group; the above (1-2-5) can be: the reference point is the frequency offset estimation value corresponding to each TRP group The maximum value in the absolute value of the value; the above (1-2-6) may be: the reference point is the minimum value in the absolute value of the frequency offset estimation value corresponding to each TRP group.
- the reference point can be determined according to the set rule, and then the frequency compensation value corresponding to each first TRP/TRP group is determined according to the reference point, thereby improving the reliability of determining the reference point.
- the determination of the reference point for frequency compensation in (1-1-2) can be implemented in but not limited to the following implementation manners:
- the reference point used to determine the frequency compensation value may be determined by the network side device. For example, it is determined according to the reference point indication information sent by the terminal.
- the reference point indication information in (1-3-1) may include any one of the following:
- the reference point indication information is indication information about a designated first TRP; wherein the estimated frequency offset corresponding to the designated first TRP is the reference point;
- the reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
- the reference point indication information is indication information about the first uplink signal; wherein, the frequency offset estimated by the network side device using the first uplink signal indicated by the indication information is the Reference point.
- the first TRP in the indication information about the first TRP in (1-3-2) above refers to a designated or selected TRP, and the reference point corresponds to the designated or selected TRP Estimated frequency offset.
- the indication information about the first TRP may refer to information indicating the identity of the first TRP.
- the reference point indication information in (1-3-2) above may also be indication information of a designated or selected TRP group.
- the reference point is the estimated value of the frequency offset corresponding to the specified or selected TRP group.
- the indication information about the designated or selected TRP group may refer to information indicating the identity of the designated or selected TRP group.
- the indication information about the downlink signal in the above may refer to the SSB (Synchronization Signal Block, synchronization signal block) identification, TRS (Tracking Refernece Signal, tracking reference signal) identification, etc.
- the indication information about the downlink signal has an association relationship with the TRP
- the associated TRP can be determined according to the indication information
- the reference point is the frequency offset estimation value estimated by the network side on the TRP.
- the network side uses other methods to determine the reference point according to the information obtained by the TRP associated with the indication information of the downlink signal.
- SSB is sometimes also written as SS/PBCH block, that is, Synchronization Signal/Physical Broadcast Channel Block synchronization signal/broadcast channel block.
- the reference point indication information is the indication information about the first uplink signal
- the reference point may be the frequency estimated by the network side device using the uplink signal indicated by the indication information. Partial estimate.
- the reference point can be determined according to the reference point indication information sent by the terminal, and then the frequency compensation value corresponding to each first TRP/TRP group can be determined according to the reference point, thereby enriching the implementation of determining the reference point , Improve the flexibility of determining the reference point.
- using the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP may adopt but not limited to the following implementation manners:
- the at least one first TRP uses the first uplink signal to determine the corresponding frequency compensation value
- each first TRP uses the first uplink signal to determine its own corresponding frequency compensation value.
- each TRP group can use the first uplink signal to determine its own corresponding frequency compensation value, and then further determine the frequency compensation value corresponding to each first TRP.
- the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
- a method for a first TRP or a first TRP group to use a first uplink signal to determine its corresponding frequency compensation value is: use the first uplink signal for frequency offset estimation, and use the frequency offset estimation value as the frequency compensation value.
- the method for a first TRP or a first TRP group to use a first uplink signal to determine its corresponding frequency compensation value is: use the first uplink signal received by itself for frequency offset estimation, and use the frequency offset estimation value The negative value is used as the frequency compensation value.
- the central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
- the central processing unit may use the first uplink signal to determine the frequency compensation value corresponding to each TRP group, and then further determine that at least one first TRP corresponds to each The frequency compensation value.
- the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
- the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group by using the first uplink signal is: performing frequency offset estimation for the first uplink signal received by each TRP or TRP group, and using the frequency offset estimation value As the frequency compensation value.
- the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group by using the first uplink signal is: performing frequency offset estimation for the first uplink signal received by each TRP or TRP group, and using the frequency offset estimation value The negative value of is used as the frequency compensation value.
- the central processing unit in the embodiment of the present application may be a processing unit of the network-side device, or may be a BBU, etc., and is applicable to all the following embodiments, and will not be repeated in the following.
- each first TRP/TRP group when the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP/TRP group, each first TRP/TRP group can be used to determine its own corresponding frequency compensation value, or it can be It is the frequency compensation value corresponding to each first TRP/TRP group from the central processing unit, thereby enriching the realization methods of determining the frequency compensation value and improving the flexibility of determining the frequency compensation value.
- the determination of the reference point for frequency compensation in (1-1-2) can be implemented in but not limited to the following implementation manners:
- the at least one first TRP determines the reference point according to the frequency offset estimation result
- each TRP group may determine the reference point.
- a first TRP in each TRP group may determine the reference point, instead of all TRP groups in each TRP group determining the reference point.
- the central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
- the reference point for determining the frequency compensation value when determining the reference point for determining the frequency compensation value, it can be determined by each first TRP/TRP group, or it can be determined by the central processing unit, thereby enriching the implementation of determining the reference point. In this way, the flexibility of determining the reference point is improved.
- the at least one first TRP in (1-5-1) determines the reference point according to the frequency offset estimation result, and the following implementation manners may be adopted but not limited to :
- the at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
- the at least one first TRP may use the first uplink signal to estimate the frequency offset (or estimate the Doppler frequency offset), the at least one first TRP exchanges information with each other to determine the reference point, and the at least one first TRP is based on The same reference point determines the transmission frequency used for downlink transmission.
- each TRP group can perform information exchange on the frequency offset estimation value corresponding to each group, and determine the corresponding use for each group according to the information exchanged. Determine the reference point for frequency compensation.
- each first TRP or TRP group is used to exchange information on their respective frequency offset estimates, and their corresponding reference points for frequency compensation are determined according to the information exchanged, thereby achieving
- Each first TRP or TRP group jointly determines the same reference point, which enriches the implementation of determining the reference point and improves the flexibility of determining the reference point.
- the frequency compensation value corresponding to at least one first TRP may be determined by But not limited to the following implementation methods:
- the at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point;
- the central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of at least one first TRP according to the frequency offset estimation result and the reference point.
- each TRP group may determine each TRP according to the frequency offset estimation result and the reference point.
- the frequency compensation value corresponding to each group is further determined, and the frequency compensation value corresponding to at least one first TRP is further determined.
- the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
- the central processing unit in (1-6-2) above may determine each TRP according to the frequency offset estimation result and the reference point.
- the frequency compensation value corresponding to each group, and then the frequency compensation value corresponding to each first TRP is further determined.
- the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
- each TRP or TRP group determines the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point: using the frequency offset estimated value plus the reference point as the frequency compensation value.
- each TRP or TRP group determines the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point: using the reference point minus the frequency offset estimation value corresponding thereto as the frequency compensation value.
- the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point is: for each TRP or TRP group, use the frequency offset estimation value corresponding to it plus the reference point As the frequency compensation value.
- the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point is: for each TRP or TRP group, use the reference point to subtract the frequency offset estimation value corresponding to it. As the frequency compensation value.
- each first TRP/TRP group when determining the frequency compensation value corresponding to each first TRP according to the frequency offset estimation result and the reference point, it can be determined by each first TRP/TRP group, or it can be a central processing unit. The unit is determined, thereby enriching the implementation methods of determining the frequency compensation value, and improving the flexibility of determining the frequency compensation value.
- the at least one first TRP in (1-6-1) determines the respective frequency compensation value according to the frequency offset estimation result and the reference point, which can be But not limited to the following implementation methods:
- the at least one first TRP determines its own corresponding frequency compensation value according to its own corresponding frequency offset estimation value and the reference point.
- each TRP group may determine its own corresponding frequency compensation value according to its own corresponding frequency offset estimation value and reference point, and then further determine each first TRP group.
- a frequency compensation value corresponding to each TRP may be the same, and they are all frequency compensation values corresponding to the TRP group.
- the frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
- each first TRP/TRP group can determine its own corresponding frequency offset estimation value, and determine its corresponding frequency based on its own corresponding frequency offset estimation value and the same reference point corresponding to each first TRP The compensation value, thereby enriching the implementation methods of determining the frequency compensation value, and improving the flexibility of determining the frequency compensation value.
- the corresponding frequency compensation value can be determined by but not limited to the following implementations Way:
- the second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to The third TRP; where the second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
- the transmission frequency of each of the at least one first TRP is determined to be used for downlink transmission, but the following implementation manners may be adopted but not limited to:
- the second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself;
- the third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- each first TRP uses the first uplink signal to separately estimate the frequency offset (or estimate the Doppler frequency offset), and the second TRP determines its own corresponding frequency compensation value according to its own corresponding frequency offset estimate, and sends it to the first TRP.
- the third TRP sends the frequency compensation value estimated by itself, and the third TRP determines its own frequency compensation value according to the frequency compensation value sent by the partial RRH, and uses the frequency compensation value to determine the transmission frequency for downlink transmission.
- the second TRP may be a first TRP or a TRP group.
- a TRP group can include one or more TRPs.
- the second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself; the third TRP determines the frequency compensation value or the second TRP according to the frequency compensation value determined by the second TRP.
- the frequency offset estimation value corresponding to the TRP determines its own transmission frequency for downlink transmission, thereby reducing the complexity of determining the frequency compensation value and improving the efficiency of frequency compensation.
- the use of the first uplink signal in the step 120 to determine the frequency compensation value corresponding to each of the at least one first TRP may be implemented in but not limited to the following implementation manners:
- At least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values
- the at least one first TRP determines the respective frequency compensation value according to the respective frequency offset estimation value.
- each TRP group may perform frequency offset estimation on the first uplink signal respectively to obtain respective corresponding Estimated value of the frequency offset.
- the frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
- the frequency offset estimation of the first uplink signal can be performed by each first TRP to obtain the respective frequency offset estimation values
- the network-side equipment can also include
- the central processing unit connected to the first TRP uses the first uplink signal to perform frequency offset estimation, obtains the frequency offset estimation value corresponding to each first TRP, and determines the frequency compensation value corresponding to each first TRP.
- the central processing unit may perform frequency offset estimation on the first uplink signal to obtain a frequency offset estimation value corresponding to each TRP group.
- the frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
- each TRP group when each first TRP is divided into one or more TRP groups, each TRP group can determine its corresponding frequency compensation value according to its corresponding frequency offset estimation value, and then further determine The frequency compensation value corresponding to each first TRP is obtained.
- the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
- each first TRP can determine its corresponding frequency compensation value according to its corresponding frequency offset estimation value, and it can also be included in the network side device connected to the first TRP.
- the central processing unit determines the frequency compensation value corresponding to each first TRP according to the frequency offset estimation value corresponding to each first TRP.
- the central processing unit may determine the frequency compensation value corresponding to each TRP group according to the frequency offset estimation value of each TRP group, and then further determine each TRP group.
- the frequency compensation value corresponding to each of the first TRP may be the same, and they are all frequency compensation values corresponding to the TRP group.
- each TRP or TRP group determines the corresponding frequency compensation value according to the frequency offset estimation result: using the frequency offset estimation value as the frequency compensation value.
- each TRP or TRP group determines the corresponding frequency compensation value according to the frequency offset estimation result: using the negative value of the frequency offset estimation value as the frequency compensation value.
- the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result is: for each TRP or TRP group, use the frequency offset estimation value corresponding to it as the frequency compensation value.
- the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result is: for each TRP or TRP group, use the negative value of the corresponding frequency offset estimation value as the frequency compensation value .
- each first TRP/TRP group performs frequency offset estimation (or estimation of Doppler frequency offset) on the first uplink signal. )
- the corresponding frequency compensation value can be determined directly according to the corresponding frequency offset estimation value, which further improves the efficiency of frequency compensation.
- the downlink transmission in the step 130 may include the transmission of a downlink signal exclusive to the terminal.
- the terminal-specific downlink signal transmission includes but is not limited to: PDSCH (Physical Downlink Shared Channel), terminal-specific PDCCH (Physical Downlink Control Channel), PDSCH DMRS, PDCCH DMRS, PT-RS (phase reference signal), etc.
- PDSCH Physical Downlink Shared Channel
- PDCCH Physical Downlink Control Channel
- PDSCH DMRS Physical Downlink DMRS
- PDCCH DMRS Physical Downlink Control Channel
- PT-RS phase reference signal
- the frequency offset estimation using the first uplink signal in (1-1-1) to obtain the frequency offset estimation result may be implemented by, but not limited to, the following implementation manners:
- At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- each TRP group may perform frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- the frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
- each first TRP/TRP group may perform frequency offset estimation on the first uplink signal to obtain each Corresponding frequency offset estimation value, thereby improving the efficiency of determining the frequency offset estimation value.
- each of the first TRPs in (1-8-1) and (1-9-1) may use the same first uplink signal to perform each first TRP Frequency offset estimation.
- the first uplink signal in (1-8-1) and (1-9-1) may include the corresponding first TRP for frequency offset estimation.
- each of the first TRPs in (1-8-1) and (1-9-1) performs frequency offset estimation on the first uplink signal to obtain their respective corresponding
- the frequency offset estimation value of can adopt but not limited to the following implementation methods:
- At least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- each first TRP can use the same first uplink signal for frequency offset estimation, or use the corresponding second uplink signal for frequency offset estimation separately, thereby enriching the implementation of frequency offset estimation and improving The flexibility of frequency offset estimation is improved.
- (1-11-1) Send the association relationship between the at least one first TRP and the second uplink signal to the terminal.
- the association relationship is indicated by any of the following messages:
- the spatial relationship information (SpatialRelationInfo) of the second uplink signal is the spatial relationship information (SpatialRelationInfo) of the second uplink signal
- the TCI Transmission Configuration Indicator
- the second uplink signal QCL (Quasi Co-Location, quasi co-location) indicates information.
- the spatial relationship information can be used to indicate the downlink signal associated with the second uplink signal, so that the transmit spatial filter of the uplink signal is determined according to the receive spatial filter of the downlink signal (or the transmit spatial filter of the uplink signal is determined according to the receive beam of the downlink signal). Beam), the first TRP/first TRP group used to send the downlink signal is the first TRP/first TRP group receiving the uplink signal.
- the form of the TCI (Transmission Configuration Indicator) state of the second uplink signal is similar to that of the TCI state of the downlink signal in the NR system or the LTE system.
- a TCI state contains a downlink signal of a certain QCL type used to determine the uplink signal.
- the QCL indication information includes the type of QCL, such as Doppler shift, Doppler Spread, and so on.
- the QCL indication information is used to indicate the associated downlink signal, and the first TRP/first TRP group sending the downlink signal is the same as the first TRP/first TRP group receiving the second uplink signal.
- the terminal can send the corresponding first uplink signal to the network side device according to the association relationship, and the first uplink signal
- the signal may include the second uplink signal used for frequency offset estimation corresponding to each first TRP, thereby improving the reliability of frequency compensation.
- FIG. 2 is a flowchart of a frequency compensation method provided by an embodiment of the application.
- the frequency compensation method may be used in a terminal; as shown in FIG. 2, the method includes the following steps:
- Step 210 Generate a first uplink signal for frequency compensation according to the configuration or instruction of the network side device.
- the terminal may send the first uplink signal based on the configuration of the network side, that is, the network side sends configuration information, and the terminal sends the first uplink signal according to this configuration information; it may also be that the network side sends the configuration information of the first uplink signal
- an indication information is also needed to instruct the terminal to send the first uplink signal (for example, through trigger signaling or activation signaling), and the user equipment UE can send the first uplink signal only after receiving the indication information.
- the network side device includes a central processing unit and a TRP, and the configuration or instructions of the network side device may be executed by the central processing unit or the TRP.
- Step 220 Send the first uplink signal to the network side device, so that the network side device uses one or more first TRPs to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine the respective corresponding to at least one first TRP.
- the frequency compensation value determines the transmission frequency of each of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- multiple first TRPs are grouped (divided into one or more TRP groups), and one or more TRP groups use a part of the first TRPs in the group for the first uplink sent by the terminal for frequency compensation Signal reception.
- each first TRP group uses one first TRP to receive the first uplink signal.
- At least one first TRP receives the first uplink signal for frequency compensation sent by the terminal.
- the first uplink signal may be an SRS, a random access signal, and other reference signals that can be used for frequency compensation.
- the random access signal can be sent through PRACH.
- the TRP in the embodiment of the present application may be an antenna unit group of a network side device, an RRH, and so on.
- the first uplink signal for frequency compensation can be generated according to the configuration or instruction of the network side device, and the first uplink signal is sent to the network side device, so that the network side device can use one or more
- the first TRP receives the first uplink signal sent by the terminal; uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP; and determines each of the at least one first TRP according to the frequency compensation value corresponding to each of the at least one first TRP.
- the transmission frequency used for downlink transmission so that when at least one first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission, thereby realizing frequency compensation for the at least one first TRP when performing downlink transmission,
- the Doppler spread on the terminal side is effectively eliminated, and the performance of downlink transmission is also improved.
- the first uplink signals used for frequency offset estimation of the at least one first TRP in the step 220 may be the same.
- the first uplink signal in the step 220 includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- the frequency compensation method further includes:
- association relationship is indicated by any of the following messages:
- the spatial relationship information (SpatialRelationInfo) of the second uplink signal is the spatial relationship information (SpatialRelationInfo) of the second uplink signal
- the second uplink signal QCL indicates information.
- the association relationship in (2-1-1) indicates a downlink signal associated with the first uplink signal; the frequency compensation method further includes:
- the sending of the first uplink signal to the network side device in the step 220 may adopt but not limited to the following implementation manners:
- the terminal may perform downlink signal detection, obtain a downlink frequency point, and send the first uplink signal based on the downlink frequency point.
- the downlink signal can be SSB or TRS.
- the terminal determines a downlink frequency point based on a downlink signal, and determines an uplink frequency point based on the downlink frequency point, and then uses the uplink frequency point as an uplink frequency point for sending all the first uplink signals.
- the terminal determines multiple downlink frequency points based on multiple downlink signals, and determines multiple uplink frequency points based on the multiple downlink frequency points, and then uses these uplink frequency points as uplink frequency points for sending the first uplink signal.
- the first uplink signal includes multiple second uplink signals, and each second uplink signal is associated with a TRP or a downlink signal sent by a TRP group, and the uplink frequency of any second uplink signal is based on the uplink frequency associated with it.
- the downlink frequency point determined by the downlink signal is determined.
- a manner in which the terminal determines the uplink frequency point based on the downlink frequency point is: the uplink frequency point is equal to the downlink frequency point plus the downlink frequency deviation.
- the uplink and downlink frequency deviations are indicated to the terminal by the network equipment, or stipulated by the protocol, or determined by the terminal according to the indication information of the network equipment.
- both the uplink frequency point and the downlink frequency point are reference frequencies, that is, frequencies that can be used to determine the frequency position of the downlink radio frequency channel and/or SSB and/or other units.
- the downlink frequency point is a reference frequency used to determine the downlink transmission frequency of downlink channels (such as PDSCH, PDCCH, etc.), SSB, and downlink reference signals (such as downlink DMRS, CSI-RS, TRS).
- the uplink frequency point is a reference frequency used to determine the frequency of uplink transmission such as uplink channel (PUSCH, PUCCH, PRACH, etc.), uplink reference signal (for example, SRS).
- the terminal may determine the frequency of the uplink signal based on the downlink signal; determine the transmit spatial filter of the uplink signal based on the receive spatial filter of the downlink signal; determine the transmit beam of the uplink signal based on the receive beam of the downlink signal; etc.
- the terminal can send the same first uplink signal, or can also send the second uplink signal corresponding to each first TRP, thereby enriching the frequency compensation methods and improving the flexibility of frequency compensation. sex.
- a BBU is connected to 4 TRPs. According to the running direction of the train, the order in which the train passes through these TRPs will be TRP1, TRP2, TRP3, and TRP4. Assuming that the frequency of the downlink signal is f DL , the Doppler frequency offset of TRP and the terminal is an ideal estimate.
- the unidirectional Doppler frequency shifts of TRP1, TRP2, TRP3, and TRP4 are f1, f2, f3, and f4, respectively.
- the reference point for compensation is f0+f1
- the frequency compensation value is the difference between the reference point and the Doppler shift value estimated by TRP.
- the frequency when the downlink signal from each TRP arrives at the UE without frequency compensation is: TRP1 is f DL + f1; TRP2 is f DL + f2; TRP3 is f DL +f2; TRP4 is f DL +f2;
- the uplink frequency point determined by the terminal is: f UL ;
- TRP1 is f UL + f1
- TRP2 is f UL + f2
- TRP3 is f UL + f3
- TRP4 is f UL + f4;
- TRP uses the following frequency compensation values: TRP1 is f0; TRP2 is f0+f1-f2; TRP3 is f0+f1-f3; TRP4 is f0+f1-f4;
- TRP1 is f DL +f0+f1
- TRP2 is f DL +f0+f1
- TRP3 is f DL +f0+f1
- TRP4 is f DL + f0+f1.
- the Doppler frequency shift of the downlink signal from each TRP received by the terminal is the same, and the terminal can more easily estimate the Doppler frequency shift and obtain better downlink reception performance.
- a BBU is connected to 4 TRPs.
- the order in which the train passes through these TRPs will be TRP1, TRP2, TRP3, and TRP4.
- the unidirectional Doppler frequency shifts of TRP1, TRP2, TRP3, and TRP4 are f1, f2, f3, and f4, respectively, and f0 is the uplink frequency point determined by the terminal.
- TRP1 is f DL + f1
- TRP2 is f DL + f2
- TRP3 is f DL + f2
- TRP4 is f DL + f2;
- the uplink frequency point determined by the terminal is: f UL ;
- TRP1 is f UL + f1
- TRP2 is f UL + f2
- TRP3 is f UL + f3
- TRP4 is f UL + f4;
- TRP1 is f0-f1
- TRP2 is f0-f2
- TRP3 is f0-f2
- TRP4 is f0-f2;
- TRP1 is f DL + f0
- TRP2 is f DL + f0
- TRP3 is f DL + f0
- TRP4 is f DL + f0.
- the Doppler frequency shift of the downlink signal from each TRP received by the UE is the same, and the UE can more easily estimate the Doppler frequency shift and obtain better downlink reception performance. .
- FIG 3 is a block diagram of a frequency compensation device provided by an embodiment of the application.
- the frequency compensation device can be used for network-side equipment.
- the network-side equipment can include BBU, TRP, etc.; as shown in Figure 3, the frequency compensation The device may include:
- the receiving module 31 is configured to use one or more first transmission receiving points TRP to receive the first uplink signal used for frequency compensation sent by the terminal;
- the frequency compensation determining module 32 is configured to use the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP;
- the transmission frequency determining module 33 is configured to determine the transmission frequency of each of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- the frequency compensation determining module is configured to determine the frequency compensation value corresponding to each first TRP by using the first uplink signal.
- the frequency compensation determining module includes:
- a frequency offset estimation sub-module configured to use the first uplink signal to perform frequency offset estimation to obtain a frequency offset estimation result
- the reference point determination sub-module is used to determine the reference point used for frequency compensation
- the frequency compensation value determining sub-module is configured to determine the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
- the frequency offset estimation submodule is specifically configured to:
- At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- the reference point determination submodule is specifically configured to:
- the setting rule includes any one of the following:
- the reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device
- the reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
- the reference point indication information includes any one of the following:
- the reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;
- the reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
- the reference point indication information is indication information about the first uplink signal; wherein, the frequency offset estimated by the network side device using the first uplink signal indicated by the indication information is the reference point.
- the reference point determination sub-module includes:
- a first determining unit configured to determine the reference point according to the frequency offset estimation result by the at least one first TRP;
- the second determining unit is configured to determine the reference point according to the frequency offset estimation result by the central processing unit connected to the first TRP included in the network side device.
- the first determining unit is specifically configured to:
- the at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
- the frequency compensation value determining sub-module includes:
- the third determining unit is specifically configured to determine the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point; or
- the fourth determining unit is specifically configured to determine the frequency compensation corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point by the central processing unit connected to the first TRP included in the network side device value.
- the third determining unit is specifically configured to:
- the at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
- the frequency compensation value determining submodule is specifically configured to:
- the second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP;
- the second TRP is used to characterize a part of the TRP in the first TRP
- the third TRP is used to characterize another part of the TRP in the first TRP.
- the transmission frequency determination module includes:
- the first frequency determining submodule is configured to determine the transmission frequency used by the second TRP for downlink transmission according to the frequency compensation value determined by the second TRP;
- the second frequency determining submodule is configured to determine the transmission frequency used by the third TRP for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- the frequency compensation determining module includes:
- a first processing sub-module configured to determine the respective corresponding frequency compensation value by the at least one first TRP using the first uplink signal
- the second processing sub-module is used for the central processing unit connected to the first TRP included in the network side device to determine the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal.
- the first processing submodule is specifically configured to:
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values
- the at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
- the at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- the association relationship sending module is configured to send the association relationship between the at least one first TRP and the second uplink signal to the terminal.
- association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the device provided in this embodiment can implement all the method steps that can be implemented in the above method embodiments, and can achieve the same beneficial effects. The same content and beneficial effects will be repeated.
- FIG. 4 is a block diagram of a frequency compensation device provided by an embodiment of the application.
- the frequency compensation device may be used in a terminal; as shown in FIG. 4, the frequency compensation device may include:
- the generating module 41 is configured to generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
- the sending module 42 is configured to send the first uplink signal to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal
- An uplink signal determines the frequency compensation value corresponding to each of the at least one first TRP, and determines the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- the first uplink signals used for frequency offset estimation of at least one first TRP are the same.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- the frequency compensation device further includes:
- the association relationship receiving module is configured to receive the association relationship between the at least one first TRP and the second uplink signal; optionally, the association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation device further includes:
- An association relationship receiving module configured to receive a downlink signal associated with the second uplink signal
- the sending module 42 may include:
- the sending submodule is configured to send the first uplink signal to the network side device based on the reception of the downlink signal.
- the device provided in this embodiment can implement all the method steps that can be implemented in the above method embodiments, and can achieve the same beneficial effects. The same content and beneficial effects will be repeated.
- FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the application.
- the terminal 500 may include: at least one processor 501, a memory 502, at least one network interface 504, and other user interfaces 503.
- the various components in the terminal 500 are coupled together through the bus system 505.
- the bus system 505 is used to implement connection and communication between these components.
- the bus system 505 also includes a power bus, a control bus, and a status signal bus.
- various buses are marked as the bus system 505 in FIG. 5.
- the user interface 503 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch panel, or a touch screen.
- the memory 502 in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
- RAM static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory
- Synchronous DRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Double Data Rate SDRAM Double Data Rate SDRAM
- DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Enhanced SDRAM Enhanced SDRAM, ESDRAM
- Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
- Synchlink DRAM Synchronous Link Dynamic Random Access Memory
- SLDRAM Direct Rambus RAM
- the memory 502 of the system and method described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
- the memory 502 stores the following elements, executable modules or data structures, or their subsets, or their extended sets, such as the operating system 5021 and application programs 5022.
- the operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks.
- the application program 5022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services.
- the program for implementing the method of the embodiment of the present application may be included in the application program 5022.
- the processor 501 by calling a computer program or instruction stored in the memory 502, specifically, a computer program or instruction stored in the application program 5022, the processor 501 is used to:
- the first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one
- the frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of the at least one first TRP respectively used for downlink transmission is determined.
- the method disclosed in the foregoing embodiment of the present application may be applied to the processor 501 or implemented by the processor 501.
- the processor 501 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 501 or instructions in the form of software.
- the aforementioned processor 501 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP Digital Signal Processor
- ASIC application specific integrated circuit
- FPGA Field Programmable Gate Array
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and completes the steps of the foregoing method in combination with its hardware.
- the embodiments described in this application can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
- ASIC application specific integrated circuits
- DSP Digital Signal Processing
- DSP Device digital signal processing equipment
- PLD programmable Logic Device
- PLD Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
- the described technology can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present application.
- the software codes can be stored in the memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
- the processor 501 is further configured to: the first uplink signals used for frequency offset estimation of the at least one first TRP are the same.
- the processor 501 is further configured to: the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- the processor 501 is further configured to: receive an association relationship between the at least one first TRP and the second uplink signal; optionally, the association relationship is received through any of the following messages instruct:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the association relationship indicates a downlink signal associated with the first uplink signal; the processor 501 is further configured to:
- the sending the first uplink signal to the network side device includes:
- the first uplink signal is sent to the network side device.
- the terminal provided in the embodiment of the present application can implement the various processes implemented by the terminal in the foregoing embodiment, and in order to avoid repetition, details are not described herein again.
- the first uplink signal for frequency compensation can be generated according to the configuration or instruction of the network side device, and the first uplink signal is sent to the network side device, so that the network side device can use one or more
- the first TRP receives the first uplink signal sent by the terminal; uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP; and determines each of the at least one first TRP according to the frequency compensation value corresponding to each of the at least one first TRP.
- the transmission frequency used for downlink transmission so that when at least one first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission, thereby realizing frequency compensation for the at least one first TRP when performing downlink transmission,
- the Doppler spread on the terminal side is effectively eliminated, and the performance of downlink transmission is also improved.
- FIG. 6 is a schematic structural diagram of another terminal provided by an embodiment of the application.
- the terminal in Figure 6 can be a mobile phone, a tablet computer, a personal digital assistant (PDA), or an e-reader, a handheld game console, Point of Sales (POS), in-vehicle electronic equipment (in-vehicle computer), etc.
- the terminal includes a radio frequency (RF) circuit 610, a memory 620, an input unit 630, a display unit 640, a processor 660, an audio circuit 670, a WiFi (Wireless Fidelity) module 680, and a power supply 690.
- RF radio frequency
- the structure of the mobile phone shown in FIG. 6 does not constitute a limitation on the mobile phone, and may include more or less components than those shown in the figure, or combine certain components, or split certain components, or Different component arrangements.
- the input unit 630 can be used to receive numeric or character information input by the user, and generate signal input related to user settings and function control of the terminal.
- the input unit 630 may include a touch panel 6301.
- the touch panel 6301 also called a touch screen, can collect the user's touch operations on or near it (for example, the user's operations on the touch panel 6301 with fingers, stylus, or any other suitable objects or accessories), and can be set according to the preset
- the specified program drives the corresponding connection device.
- the touch panel 6301 may include two parts: a touch detection device and a touch controller.
- the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 660, and can receive and execute the commands sent by the processor 660.
- the touch panel 6301 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave.
- the input unit 630 may also include other input devices 6302, and the other input devices 6302 may be used to receive input numbers or character information and generate key signal inputs related to user settings and function control of the terminal.
- other input devices 6302 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, optical mice (optical mice are touch sensitive that do not display visual output). A surface, or an extension of a touch-sensitive surface formed by a touch screen).
- the display unit 640 can be used to display information input by the user or information provided to the user and various menu interfaces of the terminal.
- the display unit 640 may include a display panel 6401.
- the display panel 8401 may be configured with the display panel 6401 in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), etc.
- the touch panel 6301 can cover the display panel 6401 to form a touch screen.
- the touch screen detects a touch operation on or near it, it transmits it to the processor 660 to determine the type of touch event, and then the processor 660 provides corresponding visual output on the touch screen according to the type of touch event.
- the touch screen includes an application program interface display area and a common control display area.
- the arrangement of the display area of the application program interface and the display area of the commonly used controls is not limited, and can be arranged up and down, left and right, etc., which can distinguish the two display areas.
- the application program interface display area can be used to display the application program interface. Each interface may include at least one application icon and/or widget desktop control and other interface elements.
- the application program interface display area can also be an empty interface that does not contain any content.
- the commonly used control display area is used to display controls with a higher usage rate, such as application icons such as setting buttons, interface numbers, scroll bars, and phonebook icons.
- the RF circuit 610 can be used for receiving and sending signals during information transmission or communication. In particular, after receiving the downlink information on the network side, it is processed by the processor 660; in addition, the designed uplink data is sent to the network side.
- the RF circuit 610 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like.
- the RF circuit 610 can also communicate with the network and other devices through wireless communication.
- the wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile Communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division) Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), Email, Short Messaging Service (SMS), etc.
- GSM Global System of Mobile Communication
- GPRS General Packet Radio Service
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- LTE Long Term Evolution
- Email Short Messaging Service
- the memory 620 is used to store software programs and modules, and the processor 660 executes various functional applications and data processing of the terminal by running the software programs and modules stored in the memory 620.
- the memory 620 may mainly include a program storage area and a data storage area.
- the program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of the terminal, etc.
- the memory 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
- the processor 660 is the control center of the terminal, which uses various interfaces and lines to connect to various parts of the entire mobile phone, runs or executes the software programs and/or modules stored in the first memory 6201, and calls the software programs and/or modules stored in the second memory 6202.
- the data in the terminal performs various functions of the terminal and processes the data, so as to monitor the terminal as a whole.
- the processor 660 may include one or more processing units.
- the processor 660 by calling and storing the software program and/or module in the first memory 6201 and/or data in the second memory 6202, the processor 660 is configured to:
- the first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one
- the frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of the at least one first TRP respectively used for downlink transmission is determined.
- the processor 660 is further configured to: the first uplink signals used for frequency offset estimation of the at least one first TRP are the same.
- the processor 660 is further configured to: the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- the processor 660 is further configured to: receive an association relationship between the at least one first TRP and the second uplink signal; optionally, the association relationship is received through any of the following messages instruct:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the association relationship indicates a downlink signal associated with the first uplink signal; the processor 660 is further configured to:
- the sending the first uplink signal to the network side device includes:
- the first uplink signal is sent to the network side device.
- the terminal provided in the embodiment of the present application can implement the various processes implemented by the terminal in the foregoing embodiment, and in order to avoid repetition, details are not described herein again.
- the first uplink signal for frequency compensation can be generated according to the configuration or instruction of the network side device, and the first uplink signal is sent to the network side device, so that the network side device can use one or more
- the first TRP receives the first uplink signal sent by the terminal; the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP; according to the frequency compensation value corresponding to each first TRP, it is determined that each first TRP is used for downlink
- the transmission frequency of the transmission allows each first TRP to use the frequency-compensated transmission frequency for downlink transmission when performing downlink transmission, thereby realizing frequency compensation for each first TRP during downlink transmission, effectively eliminating the terminal
- the Doppler expansion on the side also improves the performance of downlink transmission.
- FIG. 7 is a schematic structural diagram of a network-side device provided by an embodiment of the application.
- the network-side device 700 may include at least one processor 701, a memory 702, at least one other user interface 703, and a transceiver ⁇ 704.
- the components in the network side device 700 are coupled together through the bus system 705.
- the bus system 705 is used to implement connection and communication between these components.
- the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, various buses are marked as the bus system 705 in FIG. 7.
- the bus system may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 701 and the memory 702
- the various circuits of the representative memory are linked together.
- the bus system can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art. Therefore, the embodiments of the present application will not further describe them.
- the bus interface provides the interface.
- the transceiver 704 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
- the user interface 703 may also be an interface that can externally and internally connect the required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the memory 702 in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
- RAM static random access memory
- DRAM dynamic random access memory
- DRAM synchronous dynamic random access memory
- Synchronous DRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Double Data Rate SDRAM Double Data Rate SDRAM
- DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- Enhanced SDRAM, ESDRAM Synchronous Link Dynamic Random Access Memory
- Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
- DRRAM Direct Rambus RAM
- the memory 702 of the system and method described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
- the processor 701 is responsible for managing the bus system and general processing.
- the memory 702 may store computer programs or instructions used by the processor 701 when performing operations. Specifically, the processor 701 may be used for:
- the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- the method disclosed in the foregoing embodiment of the present application may be applied to the processor 701 or implemented by the processor 701.
- the processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software.
- the aforementioned processor 701 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
- DSP Digital Signal Processor
- ASIC application specific integrated circuit
- FPGA Field Programmable Gate Array
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. Combining the steps of the method disclosed in the embodiments of the present application may be directly embodied as execution and completion by a hardware decoding processor, or execution and completion by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the foregoing method in combination with its hardware.
- the embodiments described in this application can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
- ASIC application specific integrated circuits
- DSP Digital Signal Processing
- DSP Device digital signal processing equipment
- PLD programmable Logic Device
- PLD Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
- the described technology can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present application.
- the software codes can be stored in the memory and executed by the processor.
- the memory can be implemented in the processor or external to the processor.
- the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
- the frequency compensation value corresponding to each first TRP is determined by using the first uplink signal.
- the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
- a frequency compensation value corresponding to each of the at least one first TRP is determined.
- the performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result includes:
- At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- the determining the reference point for frequency compensation includes:
- the setting rule includes any one of the following:
- the reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device
- the reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
- the reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
- the reference point indication information includes any one of the following:
- the reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;
- the reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
- the reference point indication information is indication information about the first uplink signal; wherein, the network side device uses the frequency offset estimation value estimated by the first uplink signal indicated by the indication information as the reference point.
- the determining the reference point for frequency compensation includes:
- the at least one first TRP determines the reference point according to the frequency offset estimation result
- the central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
- the at least one first TRP determining the reference point according to the frequency offset estimation result includes:
- At least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining frequency compensation according to the information exchanged.
- the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
- the at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point;
- the central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
- the at least one first TRP determining the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point includes:
- the at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
- the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
- the second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP;
- the second TRP is used to characterize a part of the TRP in the first TRP
- the third TRP is used to characterize another part of the TRP in the first TRP.
- the determining the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP includes:
- the second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself
- the third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
- the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value
- the central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
- the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value includes:
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values
- the at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
- the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
- the at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
- the at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- it also includes:
- association relationship is indicated by any of the following messages:
- the transmission configuration of the second uplink signal indicates the TCI state
- the second uplink signal quasi co-located QCL indication information.
- the network-side device provided in the embodiment of the present application can implement the various processes implemented by the network-side device in the foregoing embodiment. To avoid repetition, details are not described herein again.
- one or more first TRPs are used to receive the first uplink signal for frequency compensation sent by the terminal, and the first uplink signal is used to determine the frequency compensation value corresponding to each of the at least one first TRP.
- the frequency compensation value corresponding to each first TRP determines the transmission frequency of at least one first TRP each used for downlink transmission, so that when at least one first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission. In this way, frequency compensation for each first TRP during downlink transmission is realized, the Doppler spread on the terminal side is effectively eliminated, and the performance of downlink transmission is also improved.
- the network-side device provided in the embodiments of the present application includes hardware structures and/or software modules corresponding to each function.
- the present application can be implemented in the form of hardware or a combination of hardware and computer software.
- each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
- the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
- the disclosed device and method may be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual couplings or direct couplings or communication connections may be indirect couplings or communication connections between devices or units through some interfaces.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the above-mentioned integrated unit can be implemented in the form of a software functional unit.
- the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server). , Or a network device, etc.) or a processor executes all or part of the steps of the method described in each embodiment of the present application.
- the computer storage medium is a nontransitory (English: nontransitory) medium, including: flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.
- the embodiments of the present application also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the methods provided in the foregoing embodiments, including:
- the transmission frequency each of the at least one first TRP is used for downlink transmission is determined.
- the embodiments of the present application also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the methods provided in the foregoing embodiments, including:
- the first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one
- the frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of the at least one first TRP respectively used for downlink transmission is determined.
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Abstract
Embodiments of the present application provide a frequency compensation method and apparatus, a network-side device, a terminal, and a storage medium. The method comprises: receiving, by using one or more first TRPs, a first uplink signal used for frequency compensation and sent by the terminal; determining, by using the first uplink signal, a frequency compensation value separately corresponding to at least one first TRP; and determining, according to the frequency compensation value separately corresponding to the at least one first TRP, transmission frequency of at least one first TRP separately used for downlink transmission. Therefore, the embodiments of the present application implement the frequency compensation for the at least one first TRP during downlink transmission, effectively eliminate a Doppler spread of a terminal side, and further improve the performance of downlink transmission.
Description
相关申请的交叉引用Cross-references to related applications
本申请要求于2020年03月05日提交的申请号为2020101475821,发明名称为“频率补偿方法、装置、网络侧设备、终端及存储介质”的中国专利申请的优先权,其通过引用方式全部并入本文。This application claims the priority of the Chinese patent application whose application number is 2020101475821 and the invention title is "frequency compensation method, device, network side equipment, terminal and storage medium" filed on March 5, 2020, which is incorporated by reference in its entirety. Into this article.
本申请涉及通信技术领域,尤其涉及一种频率补偿方法、装置、网络侧设备、终端及存储介质。This application relates to the field of communication technology, and in particular to a frequency compensation method, device, network side equipment, terminal, and storage medium.
多点协作在无线通信***中是一种重要的技术手段。通过多个分布式传输点进行分布式传输,可以改善小区边缘的覆盖,降低越区切换带来的时延和信令开销。Multi-point coordination is an important technical means in wireless communication systems. Distributed transmission through multiple distributed transmission points can improve the coverage of the cell edge and reduce the delay and signaling overhead caused by handover.
目前,在高铁场景下,为了避免终端进行频繁的小区切换,通常采用SFN(Single Frequency Network,单频网)的部署方式,简称为HST-SFN(High Speed Train-Single Frequency Network,高铁单频网)场景。其中,在HST-SFN场景下一个典型的传输方案为将下行信号从一个BBU(Base Band Unit,基带处理单元)连接的所有的RRH(Remote Radio Head,射频拉远头)同时发出。但是,来自于多个RRH的信号会产生的多普勒频移形成了多普勒扩展,并且由于列车移动速度很快,多普勒频移的变化范围有可能很大,从而导致终端不能很好地进行下行信号的解调。At present, in the high-speed rail scenario, in order to avoid frequent cell switching of the terminal, the deployment method of SFN (Single Frequency Network) is usually adopted, which is referred to as HST-SFN (High Speed Train-Single Frequency Network) for short. )Scenes. Among them, a typical transmission scheme in the HST-SFN scenario is to simultaneously transmit downlink signals from all RRHs (Remote Radio Heads) connected to one BBU (Base Band Unit). However, the Doppler frequency shift generated by the signals from multiple RRHs forms a Doppler spread, and because the train moves fast, the Doppler frequency shift may vary widely, which causes the terminal to be unable to do so. Demodulate the downlink signal well.
发明内容Summary of the invention
针对在HST-SFN场景中,来自于多个RRH的信号产生的多普勒频移导致终端不能很好地进行下行信号的解调的问题,本申请实施例提供一种频率补偿方法、装置、网络侧设备及终端,用于实现对下行传输的传输频率进行频率补偿。Aiming at the problem that in the HST-SFN scenario, the Doppler frequency shift generated by the signals from multiple RRHs causes the terminal to be unable to demodulate the downlink signal well, the embodiments of the present application provide a frequency compensation method, device, Network-side equipment and terminals are used to implement frequency compensation for the transmission frequency of downlink transmission.
本申请实施例提供一种频率补偿方法,所述频率补偿方法用于网络侧设备,包括:The embodiment of the present application provides a frequency compensation method. The frequency compensation method is applied to a network side device and includes:
利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;Use one or more first transmission receiving points TRP to receive the first uplink signal sent by the terminal for frequency compensation;
利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;Determine the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal;
根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。According to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal includes:
利用所述第一上行信号确定各个第一TRP各自对应的频率补偿值。The frequency compensation value corresponding to each first TRP is determined by using the first uplink signal.
可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal includes:
利用所述第一上行信号进行频偏估计,得到频偏估计结果;Performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result;
确定用于频率补偿的参考点;Determine the reference point for frequency compensation;
根据所述频偏估计结果和所述参考点,确定至少一个第一TRP各自对应的频率补偿值。According to the frequency offset estimation result and the reference point, a frequency compensation value corresponding to at least one first TRP is determined.
可选地,所述利用所述第一上行信号进行频偏估计,得到频偏估计结果,包括:Optionally, the performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result includes:
至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
可选地,所述确定用于频率补偿的参考点,包括:Optionally, the determining the reference point for frequency compensation includes:
按照设定规则或终端发送的参考点指示信息,确定所述参考点。Determine the reference point according to the set rule or the reference point indication information sent by the terminal.
可选地,所述设定规则包括以下任一项:Optionally, the setting rule includes any one of the following:
所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值;The reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中 绝对值最小的频偏估计值;The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值。The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
可选地,所述参考点指示信息包括以下任一项:Optionally, the reference point indication information includes any one of the following:
所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;
所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值作为所述参考点。The reference point indication information is indication information about the first uplink signal; wherein, the network side device uses the frequency offset estimation value estimated by the first uplink signal indicated by the indication information as the reference point.
可选地,所述确定用于频率补偿的参考点,包括:Optionally, the determining the reference point for frequency compensation includes:
所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;或者The at least one first TRP determines the reference point according to the frequency offset estimation result; or
所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果确定所述参考点。The central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
可选地,所述至少一个第一TRP根据所述频偏估计结果确定所述参考点,包括:Optionally, the at least one first TRP determining the reference point according to the frequency offset estimation result includes:
至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点。The at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
可选地,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者The at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point; or
所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of at least one first TRP according to the frequency offset estimation result and the reference point.
可选地,所述至少一个第一TRP根据所述频偏估计结果和所述参考点, 确定各自对应的频率补偿值,包括:Optionally, the at least one first TRP determining the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point includes:
所述至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定自身对应的频率补偿值。The at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
可选地,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP用于表征第一TRP中的另一部分TRP。The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP; The second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
可选地,所述根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率,包括:Optionally, the determining the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP includes:
所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;The second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself;
所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。The third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal includes:
所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值;或者The at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value; or
所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
可选地,所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值,包括:Optionally, that the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value includes:
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;
所述至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。The at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
可选地,所述第一上行信号中包括各个第一TRP各自对应的用于进行频 偏估计的第二上行信号;Optionally, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
可选地,还包括:Optionally, it also includes:
向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。Sending the association relationship between the at least one first TRP and the second uplink signal to the terminal.
可选地,还包括:所述关联关系通过以下任一消息来指示:Optionally, it further includes: the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
本申请实施例提供一种频率补偿方法,所述频率补偿方法用于终端,包括:An embodiment of the present application provides a frequency compensation method. The frequency compensation method is applied to a terminal and includes:
根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one The frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
可选地,至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。Optionally, the first uplink signals used for frequency offset estimation of at least one first TRP are the same.
可选地,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。Optionally, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
可选地,还包括:Optionally, it also includes:
接收所述至少一个第一TRP与所述第二上行信号的关联关系。Receiving the association relationship between the at least one first TRP and the second uplink signal.
可选地,还包括:所述关联关系通过以下任一消息来指示:Optionally, it further includes: the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
可选地,所述关联关系中指示了与所述第一上行信号相关联的下行信号;所述频率补偿方法还包括:Optionally, the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation method further includes:
接收与所述第二上行信号相关联的下行信号;Receiving a downlink signal associated with the second uplink signal;
所述将所述第一上行信号发送至网络侧设备,包括:The sending the first uplink signal to the network side device includes:
基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。Based on the reception of the downlink signal, the first uplink signal is sent to the network side device.
本申请实施例提供一种频率补偿装置,所述频率补偿装置用于网络侧设备,包括:An embodiment of the present application provides a frequency compensation device, where the frequency compensation device is used for network side equipment, and includes:
接收模块,用于利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;A receiving module, configured to use one or more first transmission receiving points TRP to receive the first uplink signal for frequency compensation sent by the terminal;
频率补偿确定模块,用于利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;A frequency compensation determining module, configured to use the first uplink signal to determine a frequency compensation value corresponding to each of at least one first TRP;
传输频率确定模块,用于根据至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The transmission frequency determining module is configured to determine the respective transmission frequencies of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
本申请实施例提供一种频率补偿装置,其特征在于,所述频率补偿装置用于终端,包括:An embodiment of the present application provides a frequency compensation device, wherein the frequency compensation device is used in a terminal and includes:
生成模块,用于根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;A generating module, configured to generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
发送模块,用于将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The sending module is configured to send the first uplink signal to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal The uplink signal determines the frequency compensation value corresponding to each of the at least one first TRP, and determines the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
本申请实施例提供一种网络侧设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的程序,所述网络侧设备中包括多个射频拉远头TRP,所述处理器执行所述程序时实现如下步骤:An embodiment of the present application provides a network-side device including a memory, a processor, and a program stored in the memory and capable of running on the processor. The network-side device includes a plurality of remote radio heads TRP, and the processor The following steps are implemented when the program is executed:
利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;Using one or more first transmission receiving points TRP to receive the first uplink signal sent by the terminal for frequency compensation;
利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;Determine the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal;
根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。According to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
利用所述第一上行信号进行频偏估计,得到频偏估计结果;Performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result;
确定用于频率补偿的参考点;Determine the reference point for frequency compensation;
根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。According to the frequency offset estimation result and the reference point, a frequency compensation value corresponding to each of the at least one first TRP is determined.
可选地,所述利用所述第一上行信号进行频偏估计,得到频偏估计结果,包括:Optionally, the performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result includes:
至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
可选地,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;Optionally, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
可选地,还包括:Optionally, it also includes:
向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。Sending the association relationship between the at least one first TRP and the second uplink signal to the terminal.
可选地,所述关联关系通过以下任一消息来指示:Optionally, the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
本申请实施例提供一种终端,包括存储器、处理器及存储在存储器上并可在处理器上运行的程序,所述处理器执行所述程序时实现如下步骤:An embodiment of the present application provides a terminal, including a memory, a processor, and a program stored on the memory and capable of running on the processor, and the processor implements the following steps when the processor executes the program:
根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one The frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
可选地,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。Optionally, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
可选地,还包括:Optionally, it also includes:
接收所述至少一个第一TRP与所述第二上行信号的关联关系。Receiving the association relationship between the at least one first TRP and the second uplink signal.
可选地,所述关联关系通过以下任一消息来指示:Optionally, the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
可选地,所述关联关系中指示了与所述第一上行信号相关联的下行信号;所述频率补偿方法还包括:Optionally, the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation method further includes:
接收与所述第二上行信号相关联的下行信号;Receiving a downlink signal associated with the second uplink signal;
所述将所述第一上行信号发送至网络侧设备,包括:The sending the first uplink signal to the network side device includes:
基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。Based on the reception of the downlink signal, the first uplink signal is sent to the network side device.
本申请实施例提供一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现用于网络侧设备的频率补偿方法的步骤。The embodiment of the present application provides a non-transitory computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the steps of the frequency compensation method for the network side device are implemented.
本申请实施例提供一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现用于终端的频率补偿方法的步骤。The embodiment of the present application provides a non-transitory computer-readable storage medium on which a computer program is stored, and is characterized in that, when the computer program is executed by a processor, the steps of a frequency compensation method for a terminal are implemented.
本申请实施例提供的频率补偿方法、装置、网络侧设备、终端及存储介质,通过利用一个或多个第一TRP接收终端发送的用于频率补偿的第一上行信号,利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用 于下行传输的传输频率,这样在各个第一TRP在进行下行传输时,可以使用频率补偿后的传输频率进行下行传输,从而实现了针对至少一个第一TRP在进行下行传输时的频率补偿,有效地消除了终端侧的多普勒扩展,还提高了下行传输的性能。The frequency compensation method, device, network-side equipment, terminal, and storage medium provided by the embodiments of the present application use one or more first TRPs to receive the first uplink signal for frequency compensation sent by the terminal, and use the first uplink signal to determine The frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP for downlink transmission is determined according to the frequency compensation value corresponding to each of the at least one first TRP, so that the downlink transmission is performed on each first TRP. When performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission, thereby realizing frequency compensation for at least one first TRP during downlink transmission, effectively eliminating Doppler spread on the terminal side, and improving downlink transmission performance. performance.
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.
图1为本申请实施例提供的一种频率补偿方法的流程图;FIG. 1 is a flowchart of a frequency compensation method provided by an embodiment of the application;
图2为本申请实施例提供的一种频率补偿方法的流程图;FIG. 2 is a flowchart of a frequency compensation method provided by an embodiment of the application;
图3为本申请实施例提供的一种频率补偿装置的模块框图;FIG. 3 is a block diagram of a frequency compensation device provided by an embodiment of the application;
图4为本申请实施例提供的一种频率补偿装置的模块框图;4 is a block diagram of a frequency compensation device provided by an embodiment of the application;
图5为本申请实施例提供的一种终端的结构示意图;FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of this application;
图6为本申请实施例提供的另一种终端的结构示意图;FIG. 6 is a schematic structural diagram of another terminal provided by an embodiment of this application;
图7为本申请实施例提供的一种网络侧设备的结构示意图。FIG. 7 is a schematic structural diagram of a network side device provided by an embodiment of this application.
为使本申请实施例的目的、技术方案和优点更加清楚,下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.
为了便于清楚描述本申请实施例的技术方案,在本申请的各实施例中,若采用了“第一”、“第二”等字样对功能和作用基本相同的相同项或相似项进行区分,本领域技术人员可以理解“第一”、“第二”等字样并不对数量和执行次序进行限定。In order to clearly describe the technical solutions of the embodiments of the present application, in each embodiment of the present application, if the words "first" and "second" are used to distinguish the same items or similar items with basically the same function and effect, Those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order.
多点协作在无线通信***中是一种重要的技术手段。通过多个分布式传输点进行分布式传输,可以改善小区边缘的覆盖,降低越区切换带来的时延和信令开销。Multi-point coordination is an important technical means in wireless communication systems. Distributed transmission through multiple distributed transmission points can improve the coverage of the cell edge and reduce the delay and signaling overhead caused by handover.
目前,在高铁场景下,为了避免终端进行频繁的小区切换,通常采用SFN的部署方式,简称为HST-SFN场景。其中,在HST-SFN场景下一个典型的传输方案为将下行信号从一个BBU连接的所有的RRH同时发出。但是,来自于多个RRH的信号有可能经历不同的多普勒频移(例如来自于某个或某些RRH的多普勒频移为正的多普勒频移,来自于另外一个或一些RRH的多普勒频移为负的多普勒频移),从而产生包含正负多普勒频移的多普勒扩展。此外,由于列车移动速度很快,多普勒频移的变化范围有可能很大,这将导致终端不能很好地进行下行信号的解调。At present, in the high-speed rail scenario, in order to avoid frequent cell handover of the terminal, the deployment mode of SFN is usually adopted, which is referred to as the HST-SFN scenario for short. Among them, a typical transmission scheme in the HST-SFN scenario is to send downlink signals from all RRHs connected to one BBU at the same time. However, signals from multiple RRHs may experience different Doppler shifts (for example, Doppler shifts from one or some RRHs are positive Doppler shifts, from another one or some The Doppler frequency shift of the RRH is a negative Doppler frequency shift), thereby generating a Doppler spread including a positive and negative Doppler frequency shift. In addition, due to the fast moving speed of the train, the Doppler frequency shift may vary greatly, which will cause the terminal to not be able to demodulate the downlink signal well.
针对上述问题,本申请实施例提供一种频率补偿方法、装置、网络侧设备及终端,用于消除下行信号所经历的多普勒扩展。In response to the foregoing problems, the embodiments of the present application provide a frequency compensation method, device, network side equipment, and terminal, which are used to eliminate the Doppler spread experienced by the downlink signal.
本申请实施例提供的频率补偿方法、装置、网络侧设备、终端及存储介质可以应用在无线通信***或无线与有线结合的***。包括但不限于5G***(如NR***)、6G***、卫星***、车联网***、演进型长期演进(Long Term Evolution,LTE)***,上述***的后续演进通信***等。The frequency compensation method, device, network-side equipment, terminal, and storage medium provided by the embodiments of the present application can be applied to a wireless communication system or a wireless and wired system. Including but not limited to 5G systems (such as NR systems), 6G systems, satellite systems, car networking systems, Long Term Evolution (LTE) systems, and subsequent evolution communication systems of the aforementioned systems, etc.
本申请实施例提供的网络侧设备可以包含但不限于以下中的一种或多种:通常所用的基站、演进型基站(evolved node base station,eNB)、5G***中的网络侧设备(例如下一代基站(next generation node base station,gNB)、发送和接收点(transmission and reception point,TRP))等设备。The network-side equipment provided by the embodiments of this application may include, but is not limited to, one or more of the following: commonly used base stations, evolved node base stations (eNB), network-side equipment in 5G systems (for example, the following Equipment such as next generation node base station (gNB), transmission and reception point (TRP)).
本申请实施例提供的终端有可以被称为用户设备等。终端包括单不限于手持设备、车载设备。例如,可以为手机、平板电脑、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer,UMPC)、上网本或者个人数字助理(Personal Digital Assistant,PDA)等。The terminal provided in the embodiment of the present application may be called a user equipment or the like. Terminals include, but are not limited to, handheld devices and vehicle-mounted devices. For example, it may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), etc.
下面通过具体实施例进行说明。The following is described through specific embodiments.
图1为本申请实施例提供的一种频率补偿方法的流程图,该频率补偿方法可以用于网络侧设备,比如:网络侧设备可以包括中央处理单元和TRP (Transmission Reception Point,传输接收点)等,该网络侧设备的配置或指示可以是中央处理单元执行的,也可以是TRP执行的;如图1所示,该方法包括如下步骤:Fig. 1 is a flowchart of a frequency compensation method provided by an embodiment of the application. The frequency compensation method can be used for network-side equipment. For example, the network-side equipment may include a central processing unit and TRP (Transmission Reception Point). Etc., the configuration or instruction of the network side device can be executed by the central processing unit or TRP; as shown in Figure 1, the method includes the following steps:
步骤110:利用一个或多个第一TRP接收终端发送的用于频率补偿的第一上行信号。Step 110: Use one or more first TRPs to receive a first uplink signal for frequency compensation sent by a terminal.
具体地,多个第一TRP被进行了分组(分为一个或多个TRP组),一个或多个TRP组利用组内的一部分第一TRP进行终端发送的用于频率补偿的第一上行信号的接收。例如,每个第一TRP组使用一个第一TRP进行第一上行信号的接收。Specifically, multiple first TRPs are grouped (divided into one or more TRP groups), and one or more TRP groups use a part of the first TRPs in the group to perform the first uplink signal sent by the terminal for frequency compensation. Received. For example, each first TRP group uses one first TRP to receive the first uplink signal.
每个第一TRP都进行终端发送的用于频率补偿的第一上行信号的接收。Each first TRP receives the first uplink signal sent by the terminal for frequency compensation.
其中,第一上行信号可以是SRS(Sounding Reference Signal,信道探测参考信号)、随机接入信号、以及其他可以用于频率补偿的参考信号等。其中,随机接入信号可以通过PRACH(Physical Random Access Channel,物理随机接入信道)发送。The first uplink signal may be SRS (Sounding Reference Signal, channel sounding reference signal), random access signal, and other reference signals that can be used for frequency compensation. Among them, the random access signal can be sent through PRACH (Physical Random Access Channel).
另外,本申请实施例中的TRP可以为网络侧设备的天线单元组、RRH等。In addition, the TRP in the embodiment of the present application may be an antenna unit group of a network side device, an RRH, and so on.
步骤120:利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值。Step 120: Determine the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal.
具体地,一个或多个第一TRP中的至少一个TRP确定自己对应的频率补偿值。Specifically, at least one TRP of the one or more first TRPs determines its corresponding frequency compensation value.
需要说明的是,利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值时,可以利用所述第一上行信号确定各个第一TRP各自对应的频率补偿值,即每个第一TRP利用第一上行信号确定自己对应的频率补偿值。也就是说在此并不具体限制确定频率补偿值的第一TRP的个数。It should be noted that when the first uplink signal is used to determine the frequency compensation value corresponding to at least one first TRP, the first uplink signal may be used to determine the frequency compensation value corresponding to each first TRP, that is, each first TRP Use the first uplink signal to determine its own corresponding frequency compensation value. That is to say, the number of the first TRP for determining the frequency compensation value is not specifically limited here.
在各个第一TRP被分成一个或多个TRP组时,可以在利用第一上行信号确定各个第一TRP各自对应的频率补偿值时,可以包括针对各个TRP组分别确定频率补偿值,并进一步确定出各个第一TRP各自对应的频率补偿值。When each first TRP is divided into one or more TRP groups, when the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP, it may include determining the frequency compensation value for each TRP group, and further determine The frequency compensation value corresponding to each first TRP is obtained.
针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。举例来说,当任意一个TRP组使用该组内 的一个第一TRP进行第一上行信号的接收时,可以利用该第一上行信号确定出该TRP组对应的频率补偿值,并将该频率补偿值作为该TRP组内的各个第一TRP对应的频率补偿值。这样确定出多个TRP组对应的频率补偿值,就可以进一步确定出各个第一TRP各自对应的频率补偿值。For all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group. For example, when any TRP group uses a first TRP in the group to receive the first uplink signal, the first uplink signal can be used to determine the frequency compensation value corresponding to the TRP group, and the frequency can be compensated. The value is used as the frequency compensation value corresponding to each first TRP in the TRP group. In this way, if the frequency compensation values corresponding to multiple TRP groups are determined, the frequency compensation value corresponding to each first TRP can be further determined.
另外,在利用第一上行信号确定各个第一TRP各自对应的频率补偿值时,可以根据第一上行信号的多普勒谱确定各个第一TRP各自对应的频率补偿值,也可以根据第一上行信号的频偏估计值(例如多普勒频移估计值)确定各个第一TRP各自对应的频率补偿值等。In addition, when the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP, the frequency compensation value corresponding to each first TRP may be determined according to the Doppler spectrum of the first uplink signal, or the frequency compensation value corresponding to each first TRP may be determined according to the first uplink signal. The frequency offset estimation value of the signal (for example, the Doppler frequency offset estimation value) determines the frequency compensation value corresponding to each first TRP.
步骤130:根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。Step 130: Determine the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
具体地,第一TRP在进行下行传输时,可以使用频率补偿后的传输频率,这样终端接收到的来自于第一TRP的下行多普勒频移可以被控制在一个较小的差值范围内(即消除了多普勒扩展),从而可以降低信道估计的误差,提高下行传输的性能。Specifically, when the first TRP performs downlink transmission, the frequency-compensated transmission frequency can be used, so that the downlink Doppler shift received by the terminal from the first TRP can be controlled within a small difference range (That is, the Doppler spread is eliminated), which can reduce the error of channel estimation and improve the performance of downlink transmission.
由上述实施例可见,通过利用一个或多个第一TRP接收终端发送的用于频率补偿的第一上行信号,利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率,这样在第一TRP在进行下行传输时,可以使用频率补偿后的传输频率进行下行传输,从而实现了针对第一TRP在进行下行传输时的频率补偿,有效地消除了终端侧的多普勒扩展,还提高了下行传输的性能。It can be seen from the above embodiment that by using one or more first TRPs to receive the first uplink signal for frequency compensation sent by the terminal, the first uplink signal is used to determine the frequency compensation value corresponding to each of the at least one first TRP, according to the at least one The frequency compensation value corresponding to each of the first TRP is determined, and the transmission frequency of at least one first TRP is determined for downlink transmission. In this way, when the first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission. The frequency compensation for the first TRP during downlink transmission effectively eliminates the Doppler spread on the terminal side, and also improves the performance of downlink transmission.
进一步地,建立在上述方法的基础上,所述步骤120中的利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,可以采用但不限于以下实现方式:Further, based on the foregoing method, the use of the first uplink signal in the step 120 to determine the frequency compensation value corresponding to each of the at least one first TRP may be implemented in but not limited to the following implementation manners:
(1-1-1)利用所述第一上行信号进行频偏估计,得到频偏估计结果。(1-1-1) Perform frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result.
可选地,可以对至少一个第一TRP对应的第一上行信号进行频偏估计,得到至少一个第一TRP对应的频偏估计值。Optionally, the frequency offset estimation may be performed on the first uplink signal corresponding to the at least one first TRP to obtain the frequency offset estimation value corresponding to the at least one first TRP.
其中,各个第一TRP对应的第一上行信号可以是同一个上行信号,也可 以是不同的上行信号。The first uplink signal corresponding to each first TRP may be the same uplink signal or different uplink signals.
可选地,在各个第一TRP被分成一个或多个TRP组时,可以对每个TRP组中的一个第一TRP对应的第一上行信号进行频偏估计,得到该TRP组对应的频偏估计值。可选地,进一步将任一个第一TRP所在的TRP组对应的频偏估计值作为该第一TRP对应的频偏估计值。Optionally, when each first TRP is divided into one or more TRP groups, the frequency offset of the first uplink signal corresponding to a first TRP in each TRP group may be estimated to obtain the frequency offset corresponding to the TRP group estimated value. Optionally, the frequency offset estimation value corresponding to the TRP group in which any first TRP is located is further used as the frequency offset estimation value corresponding to the first TRP.
(1-1-2)确定用于频率补偿的参考点。(1-1-2) Determine the reference point for frequency compensation.
具体地,各个第一TRP基于相同的参考点确定频率补偿值,可以保证补偿后终端收到的多普勒差不多。例如,各个第一TRP频率补偿值间相互间的差值等于他们单程的互相间多普勒差值。Specifically, each first TRP determines the frequency compensation value based on the same reference point, which can ensure that the Doppler received by the terminal after compensation is similar. For example, the mutual difference between each first TRP frequency compensation value is equal to their one-way mutual Doppler difference.
可选地,各个第一TRP对应的参考点可以是同一个参考点。Optionally, the reference points corresponding to each first TRP may be the same reference point.
可选地,在各个第一TRP被分成一个或多个TRP组时,各个TRP组对应的参考点可以是同一个参考点。Optionally, when each first TRP is divided into one or more TRP groups, the reference points corresponding to each TRP group may be the same reference point.
需要说明的是,在此并不具体限定上述步骤(1-1-1)和步骤(1-1-2)的执行顺序,即上述步骤(1-1-1)和步骤(1-1-2)两个步骤可以不具体区分先后。It should be noted that the execution order of the above steps (1-1-1) and (1-1-2) is not specifically limited here, that is, the above steps (1-1-1) and (1-1- 2) The two steps may not be specifically distinguished.
(1-1-3)根据所述频偏估计结果和所述参考点,确定至少一个第一TRP各自对应的频率补偿值。(1-1-3) According to the frequency offset estimation result and the reference point, a frequency compensation value corresponding to at least one first TRP is determined.
具体地,可以根据各个第一TRP对应的频偏估计值和各个第一TRP对应的同一个参考点,确定各个第一TRP各自对应的频率补偿值。Specifically, the frequency compensation value corresponding to each first TRP may be determined according to the frequency offset estimation value corresponding to each first TRP and the same reference point corresponding to each first TRP.
比如:参考点为f
r,第n个第一TRP估计出的频偏估计值为f
n,则第n个第一TRP的频率补偿值为f
r-f
n。假设第n个第一TRP本应在频率f
x发送下行信号,则需要调整为在频率f
x+f
r-f
n发送下行信号。
For example, if the reference point is f r , and the estimated frequency offset value of the n-th first TRP is f n , the frequency compensation value of the n-th first TRP is f r -f n . Assuming that the n-th first TRP should send the downlink signal at the frequency f x , it needs to be adjusted to send the downlink signal at the frequency f x +f r -f n .
其中,参考点可能为0。此时,若第n个第一TRP估计出的频偏估计值为f
n,则第n个第一TRP的频率补偿值为-fn。假设第n个第一TRP本应在频率f
x发送下行信号,则需要调整为在频率f
x-f
n发送下行信号。
Among them, the reference point may be 0. At this time, if the first n-th estimated frequency offset estimate TRP is F n, the n-th frequency compensation is a first TRP -fn. Assuming that the n-th first TRP should send a downlink signal at the frequency f x , it needs to be adjusted to send a downlink signal at the frequency f x- f n .
通过上述实施例的调整,当参考点为f
r时,终端接收到的来自于任意一个第一TRP的下行信号的频率都将在f
x+f
y附近,其中f
y为任意一个第一TRP的频率补偿值与从该第一TRP到终端的多普勒频移的差值。
Through the adjustment of the above embodiment, when the reference point is fr , the frequency of the downlink signal from any first TRP received by the terminal will be around f x + f y , where f y is any first TRP The difference between the frequency compensation value and the Doppler shift from the first TRP to the terminal.
由上述实施例可见,可以利用所述第一上行信号进行频偏估计,得到频偏估计结果,并确定用于确定所述频率补偿值的参考点,以及根据所述频偏估计结果和所述参考点,确定各个第一TRP各自对应的频率补偿值,可以达到消除终端接收到的多普勒扩展范围太大的效果。It can be seen from the above embodiment that the first uplink signal can be used to estimate the frequency offset, obtain the frequency offset estimation result, and determine the reference point for determining the frequency compensation value, and according to the frequency offset estimation result and the The reference point is to determine the frequency compensation value corresponding to each first TRP, which can achieve the effect of eliminating too much Doppler extension range received by the terminal.
进一步地,建立在上述方法的基础上,所述(1-1-2)中的确定用于频率补偿的参考点,可以采用但不限于以下实现方式:Further, based on the above method, the determination of the reference point for frequency compensation in (1-1-2) can be implemented in but not limited to the following implementation manners:
(1-2-1)按照设定规则确定所述参考点。(1-2-1) Determine the reference point according to the set rule.
具体地,用于确定频率补偿值的参考点可以是网络侧设备确定的。比如;按照一些预定义的规则来确定。Specifically, the reference point used to determine the frequency compensation value may be determined by the network side device. For example; according to some predefined rules to determine.
进一步地,建立在上述方法的基础上,所述(1-2-1)中的所述设定规则可以包括但不限于以下任一项:Further, based on the above method, the setting rules in (1-2-1) may include, but are not limited to, any of the following:
(1-2-2)所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值或频率补偿值;(1-2-2) The reference point is the frequency offset estimation value or the frequency compensation value corresponding to the designated first TRP determined by the network side device;
(1-2-3)所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;(1-2-3) The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
(1-2-4)所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最小的频偏估计值;(1-2-4) The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
(1-2-5)所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;(1-2-5) The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
(1-2-6)所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值;(1-2-6) The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
(1-2-7)所述参考点是所述网络侧设备确定的上行频点。(1-2-7) The reference point is an uplink frequency point determined by the network side device.
可选地,在各个第一TRP被分成一个或多个TRP组时,相应地,上述(1-2-2)可以为:所述参考点是指定或选定的TRP组对应的频偏估计值或频率补偿值;上述(1-2-3)可以为:所述参考点是各个TRP组对应的频偏估计值中绝对值最大的频偏估计值;上述(1-2-4)可以为:所述参考点是各个TRP组对应的频偏估计值中绝对值最小的频偏估计值;上述(1-2-5)可以为:所述参考点是各个TRP组对应的频偏估计值的绝对值中的最大值;上述(1-2-6) 可以为:所述参考点是各个TRP组对应的频偏估计值的绝对值中的最小值。Optionally, when each first TRP is divided into one or more TRP groups, correspondingly, the above (1-2-2) may be: the reference point is the frequency offset estimation corresponding to the designated or selected TRP group Value or frequency compensation value; the above (1-2-3) may be: the reference point is the frequency offset estimated value with the largest absolute value among the frequency offset estimated values corresponding to each TRP group; the above (1-2-4) may As: the reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each TRP group; the above (1-2-5) can be: the reference point is the frequency offset estimation value corresponding to each TRP group The maximum value in the absolute value of the value; the above (1-2-6) may be: the reference point is the minimum value in the absolute value of the frequency offset estimation value corresponding to each TRP group.
由上述实施例可见,可以按照设定规则确定参考点,进而根据该参考点确定各个第一TRP/TRP组各自对应的频率补偿值,从而提高了确定参考点的可靠性。It can be seen from the foregoing embodiment that the reference point can be determined according to the set rule, and then the frequency compensation value corresponding to each first TRP/TRP group is determined according to the reference point, thereby improving the reliability of determining the reference point.
进一步地,建立在上述方法的基础上,所述(1-1-2)中的确定用于频率补偿的参考点,可以采用但不限于以下实现方式:Further, based on the above method, the determination of the reference point for frequency compensation in (1-1-2) can be implemented in but not limited to the following implementation manners:
(1-3-1)根据终端发送的参考点指示信息确定所述参考点。(1-3-1) Determine the reference point according to the reference point indication information sent by the terminal.
具体地,用于确定频率补偿值的参考点可以是网络侧设备确定的。比如;根据终端发送的参考点指示信息来确定。Specifically, the reference point used to determine the frequency compensation value may be determined by the network side device. For example, it is determined according to the reference point indication information sent by the terminal.
进一步地,建立在上述方法的基础上,所述(1-3-1)中的参考点指示信息包括可以包括以下任一项:Further, based on the foregoing method, the reference point indication information in (1-3-1) may include any one of the following:
(1-3-2)所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;(1-3-2) The reference point indication information is indication information about a designated first TRP; wherein the estimated frequency offset corresponding to the designated first TRP is the reference point;
(1-3-3)所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;(1-3-3) The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
(1-3-4)所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值为所述参考点。(1-3-4) The reference point indication information is indication information about the first uplink signal; wherein, the frequency offset estimated by the network side device using the first uplink signal indicated by the indication information is the Reference point.
可选地,上述(1-3-2)中的关于第一TRP的指示信息中的第一TRP指的是指定或选定的TRP,并且,参考点是该指定或选定的TRP对应的频偏估计值。其中,关于第一TRP的指示信息可以指的是指示该第一TRP的标识的信息。Optionally, the first TRP in the indication information about the first TRP in (1-3-2) above refers to a designated or selected TRP, and the reference point corresponds to the designated or selected TRP Estimated frequency offset. Wherein, the indication information about the first TRP may refer to information indicating the identity of the first TRP.
可选地,在各个第一TRP被分成一个或多个TRP组时,上述(1-3-2)中的所述参考点指示信息还可以是指定或选定的TRP组的指示信息。并且,参考点是该指定或选定的TRP组对应的频偏估计值。其中,关于指定或选定的TRP组的指示信息可以指的是指示该指定或选定的TRP组的标识的信息。Optionally, when each first TRP is divided into one or more TRP groups, the reference point indication information in (1-3-2) above may also be indication information of a designated or selected TRP group. And, the reference point is the estimated value of the frequency offset corresponding to the specified or selected TRP group. Wherein, the indication information about the designated or selected TRP group may refer to information indicating the identity of the designated or selected TRP group.
上述(1-3-3)中的关于下行信号的指示信息可以指的是SSB(Synchronization Signal Block,同步信号块)标识,TRS(Tracking Refernece Signal,追踪参考信号)标识等。其中,关于下行信号的指示信息与TRP存在关联关系,根据所述指示信息可以确定出相关联的TRP,所述参考点是网络侧在该TRP估计出的频偏估计值。再或者,网络侧采用其他方式,根据与这个下行信号的指示信息相关联的TRP获得的信息确定出参考点。注意SSB有时候也写作SS/PBCH block,即Synchronization Signal/Physical Broadcast Channel Block同步信号/广播信道块。The indication information about the downlink signal in the above (1-3-3) may refer to the SSB (Synchronization Signal Block, synchronization signal block) identification, TRS (Tracking Refernece Signal, tracking reference signal) identification, etc. Wherein, the indication information about the downlink signal has an association relationship with the TRP, the associated TRP can be determined according to the indication information, and the reference point is the frequency offset estimation value estimated by the network side on the TRP. Or, the network side uses other methods to determine the reference point according to the information obtained by the TRP associated with the indication information of the downlink signal. Note that SSB is sometimes also written as SS/PBCH block, that is, Synchronization Signal/Physical Broadcast Channel Block synchronization signal/broadcast channel block.
上述(1-3-4)中,在所述参考点指示信息是关于所述第一上行信号的指示信息时,该参考点可以是网络侧设备使用该指示信息指示的上行信号估计出的频偏估计值。In the above (1-3-4), when the reference point indication information is the indication information about the first uplink signal, the reference point may be the frequency estimated by the network side device using the uplink signal indicated by the indication information. Partial estimate.
由上述实施例可见,可以根据终端发送的参考点指示信息确定所述参考点,进而根据该参考点确定各个第一TRP/TRP组各自对应的频率补偿值,从而丰富了确定参考点的实现方式,提高了确定参考点的灵活性。It can be seen from the above embodiment that the reference point can be determined according to the reference point indication information sent by the terminal, and then the frequency compensation value corresponding to each first TRP/TRP group can be determined according to the reference point, thereby enriching the implementation of determining the reference point , Improve the flexibility of determining the reference point.
进一步地,建立在上述方法的基础上,所述步骤120中的利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值,可以采用但不限于以下实现方式:Further, based on the above-mentioned method, in the step 120, using the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP may adopt but not limited to the following implementation manners:
(1-4-1)所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值;或者(1-4-1) The at least one first TRP uses the first uplink signal to determine the corresponding frequency compensation value; or
可选地,每个第一TRP利用第一上行信号确定自己对应的频率补偿值。Optionally, each first TRP uses the first uplink signal to determine its own corresponding frequency compensation value.
可选地,在各个第一TRP被分成一个或多个TRP组时,各个TRP组可以利用第一上行信号确定自己对应的频率补偿值,再进一步确定出各个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。Optionally, when each first TRP is divided into one or more TRP groups, each TRP group can use the first uplink signal to determine its own corresponding frequency compensation value, and then further determine the frequency compensation value corresponding to each first TRP. . Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
可选地,一个第一TRP或第一TRP组利用一个第一上行信号确定自己对应的频率补偿值的方法为:使用第一上行信号进行频偏估计,使用频偏估计值作为频率补偿值。Optionally, a method for a first TRP or a first TRP group to use a first uplink signal to determine its corresponding frequency compensation value is: use the first uplink signal for frequency offset estimation, and use the frequency offset estimation value as the frequency compensation value.
可选地,一个第一TRP或第一TRP组利用一个第一上行信号确定自己对应的频率补偿值的方法为:使用自己接收到的第一上行信号进行频偏估计,使用频偏估计值的负值作为频率补偿值。Optionally, the method for a first TRP or a first TRP group to use a first uplink signal to determine its corresponding frequency compensation value is: use the first uplink signal received by itself for frequency offset estimation, and use the frequency offset estimation value The negative value is used as the frequency compensation value.
(1-4-2)所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号,确定至少一个第一TRP各自对应的频率补偿值。(1-4-2) The central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
可选地,在至少一个第一TRP被分成一个或多个TRP组时,中央处理单元可以利用第一上行信号确定各个TRP组对应的频率补偿值,再进一步确定出至少一个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。Optionally, when at least one first TRP is divided into one or more TRP groups, the central processing unit may use the first uplink signal to determine the frequency compensation value corresponding to each TRP group, and then further determine that at least one first TRP corresponds to each The frequency compensation value. Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
可选地,中央处理单元利用第一上行信号确定各个TRP或TRP组对应的频率补偿值的方法为:针对各个TRP或TRP组接收到的第一上行信号进行频偏估计,使用频偏估计值作为频率补偿值。Optionally, the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group by using the first uplink signal is: performing frequency offset estimation for the first uplink signal received by each TRP or TRP group, and using the frequency offset estimation value As the frequency compensation value.
可选地,中央处理单元利用第一上行信号确定各个TRP或TRP组对应的频率补偿值的方法为:针对各个TRP或TRP组接收到的第一上行信号进行频偏估计,使用频偏估计值的负值作为频率补偿值。Optionally, the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group by using the first uplink signal is: performing frequency offset estimation for the first uplink signal received by each TRP or TRP group, and using the frequency offset estimation value The negative value of is used as the frequency compensation value.
另外,本申请实施例中的中央处理单元可以为网络侧设备的一个处理单元,也可以为BBU等,并适用于下述所有实施例,后续不再赘述。In addition, the central processing unit in the embodiment of the present application may be a processing unit of the network-side device, or may be a BBU, etc., and is applicable to all the following embodiments, and will not be repeated in the following.
由上述实施例可见,在利用所述第一上行信号确定各个第一TRP/TRP组各自对应的频率补偿值时,可以是各个第一TRP/TRP组来确定自身对应的频率补偿值,也可以是中央处理单元来各个第一TRP/TRP组各自对应的频率补偿值,从而丰富了确定频率补偿值的实现方式,提高了确定频率补偿值的灵活性。It can be seen from the above embodiment that when the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP/TRP group, each first TRP/TRP group can be used to determine its own corresponding frequency compensation value, or it can be It is the frequency compensation value corresponding to each first TRP/TRP group from the central processing unit, thereby enriching the realization methods of determining the frequency compensation value and improving the flexibility of determining the frequency compensation value.
进一步地,建立在上述方法的基础上,所述(1-1-2)中的确定用于频率补偿的参考点,可以采用但不限于以下实现方式:Further, based on the above method, the determination of the reference point for frequency compensation in (1-1-2) can be implemented in but not limited to the following implementation manners:
(1-5-1)所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;(1-5-1) The at least one first TRP determines the reference point according to the frequency offset estimation result;
可选地,在至少一个第一TRP被分成一个或多个TRP组时,可以由各个TRP组确定所述参考点。比如:可以由每个TRP组中的一个第一TRP确定所述参考点,而不是每个TRP组中的所有TRP组确定所述参考点。Optionally, when at least one first TRP is divided into one or more TRP groups, each TRP group may determine the reference point. For example, a first TRP in each TRP group may determine the reference point, instead of all TRP groups in each TRP group determining the reference point.
(1-5-2)所述网络侧设备中包括的连接第一TRP的中央处理单元根据所 述频偏估计结果确定所述参考点。(1-5-2) The central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
由上述实施例可见,在确定用于确定所述频率补偿值的参考点时,可以是各个第一TRP/TRP组来确定,也可以是中央处理单元来确定,从而丰富了确定参考点的实现方式,提高了确定参考点的灵活性。It can be seen from the above embodiment that when determining the reference point for determining the frequency compensation value, it can be determined by each first TRP/TRP group, or it can be determined by the central processing unit, thereby enriching the implementation of determining the reference point. In this way, the flexibility of determining the reference point is improved.
进一步地,建立在上述方法的基础上,所述(1-5-1)中的所述至少一个第一TRP根据所述频偏估计结果确定所述参考点,可以采用但不限于以下实现方式:Further, based on the foregoing method, the at least one first TRP in (1-5-1) determines the reference point according to the frequency offset estimation result, and the following implementation manners may be adopted but not limited to :
至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点。The at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
具体地,至少一个第一TRP可以利用第一上行信号分别频偏估计(或估计多普勒频偏),至少一个第一TRP互相间互相交互信息,确定出参考点,至少一个第一TRP基于相同的参考点确定用于下行传输的传输频率。Specifically, the at least one first TRP may use the first uplink signal to estimate the frequency offset (or estimate the Doppler frequency offset), the at least one first TRP exchanges information with each other to determine the reference point, and the at least one first TRP is based on The same reference point determines the transmission frequency used for downlink transmission.
可选地,在至少一个第一TRP被分成一个或多个TRP组时,各个TRP组可以对各组对应的频偏估计值进行信息交互,并根据信息交互的信息确定各组对应的用于确定用于频率补偿的参考点。Optionally, when at least one first TRP is divided into one or more TRP groups, each TRP group can perform information exchange on the frequency offset estimation value corresponding to each group, and determine the corresponding use for each group according to the information exchanged. Determine the reference point for frequency compensation.
由上述实施例可见,通过各个第一TRP或TRP组对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点,从而实现了各个第一TRP或TRP组共同来确定相同的参考点,丰富了确定参考点的实现方式,提高了确定参考点的灵活性。It can be seen from the above embodiment that the respective first TRPs or TRP groups are used to exchange information on their respective frequency offset estimates, and their corresponding reference points for frequency compensation are determined according to the information exchanged, thereby achieving Each first TRP or TRP group jointly determines the same reference point, which enriches the implementation of determining the reference point and improves the flexibility of determining the reference point.
进一步地,建立在上述方法的基础上,所述(1-1-3)中的根据所述频偏估计结果和所述参考点,确定至少一个第一TRP各自对应的频率补偿值,可以采用但不限于以下实现方式:Further, based on the above method, in the (1-1-3), according to the frequency offset estimation result and the reference point, the frequency compensation value corresponding to at least one first TRP may be determined by But not limited to the following implementation methods:
(1-6-1)所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者(1-6-1) The at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point; or
(1-6-2)所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定至少一个第一TRP各自对应的频率补偿值。(1-6-2) The central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of at least one first TRP according to the frequency offset estimation result and the reference point.
可选地,在至少一个第一TRP被分成一个或多个TRP组时,上述(1-6-1) 中可以由各个TRP组根据所述频偏估计结果和所述参考点,确定各个TRP组各自对应的频率补偿值,再进一步确定出至少一个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。Optionally, when at least one first TRP is divided into one or more TRP groups, in the above (1-6-1), each TRP group may determine each TRP according to the frequency offset estimation result and the reference point. The frequency compensation value corresponding to each group is further determined, and the frequency compensation value corresponding to at least one first TRP is further determined. Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
可选地,在至少一个第一TRP被分成一个或多个TRP组时,上述(1-6-2)中的中央处理单元可以根据所述频偏估计结果和所述参考点,确定各个TRP组各自对应的频率补偿值,再进一步确定出各个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。Optionally, when at least one first TRP is divided into one or more TRP groups, the central processing unit in (1-6-2) above may determine each TRP according to the frequency offset estimation result and the reference point. The frequency compensation value corresponding to each group, and then the frequency compensation value corresponding to each first TRP is further determined. Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
可选地,各个TRP或TRP组根据频偏估计结果和参考点,确定各个TRP或TRP组对应的频率补偿值的方法为:使用频偏估计值加上参考点作为频率补偿值。Optionally, each TRP or TRP group determines the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point: using the frequency offset estimated value plus the reference point as the frequency compensation value.
可选地,各个TRP或TRP组根据频偏估计结果和参考点,确定各个TRP或TRP组对应的频率补偿值的方法为:使用参考点减去与其对应的频偏估计值作为频率补偿值。Optionally, each TRP or TRP group determines the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point: using the reference point minus the frequency offset estimation value corresponding thereto as the frequency compensation value.
可选地,中央处理单元根据频偏估计结果和参考点,确定各个TRP或TRP组对应的频率补偿值的方法为:针对各个TRP或TRP组,使用与其对应的频偏估计值加上参考点作为频率补偿值。Optionally, the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point is: for each TRP or TRP group, use the frequency offset estimation value corresponding to it plus the reference point As the frequency compensation value.
可选地,中央处理单元根据频偏估计结果和参考点,确定各个TRP或TRP组对应的频率补偿值的方法为:针对各个TRP或TRP组,使用参考点减去与其对应的频偏估计值作为频率补偿值。Optionally, the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result and the reference point is: for each TRP or TRP group, use the reference point to subtract the frequency offset estimation value corresponding to it. As the frequency compensation value.
由上述实施例可见,在根据所述频偏估计结果和所述参考点,确定各个第一TRP各自对应的频率补偿值时,可以是各个第一TRP/TRP组来确定,也可以是中央处理单元来确定,从而丰富了确定频率补偿值的实现方式,提高了确定频率补偿值的灵活性。It can be seen from the above embodiment that when determining the frequency compensation value corresponding to each first TRP according to the frequency offset estimation result and the reference point, it can be determined by each first TRP/TRP group, or it can be a central processing unit. The unit is determined, thereby enriching the implementation methods of determining the frequency compensation value, and improving the flexibility of determining the frequency compensation value.
进一步地,建立在上述方法的基础上,所述(1-6-1)中的至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值,可以采用但不限于以下实现方式:Further, based on the above method, the at least one first TRP in (1-6-1) determines the respective frequency compensation value according to the frequency offset estimation result and the reference point, which can be But not limited to the following implementation methods:
至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定自身对应的频率补偿值。The at least one first TRP determines its own corresponding frequency compensation value according to its own corresponding frequency offset estimation value and the reference point.
可选地,在各个第一TRP被分成一个或多个TRP组时,可以由各个TRP组根据自身对应的频偏估计值和参考点,确定自身对应的频率补偿值,再进一步确定出各个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。Optionally, when each first TRP is divided into one or more TRP groups, each TRP group may determine its own corresponding frequency compensation value according to its own corresponding frequency offset estimation value and reference point, and then further determine each first TRP group. A frequency compensation value corresponding to each TRP. Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
其中,每个TRP组的频偏估计值可以是对每个TRP组中的一个第一TRP对应的第一上行信号进行频偏估计,得到该TRP组对应的频偏估计值。The frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
由上述实施例可见,各个第一TRP/TRP组可以确定自身对应的频偏估计值,并根据自身对应的频偏估计值和各个第一TRP对应的同一个参考点,来确定自身对应的频率补偿值,从而丰富了确定频率补偿值的实现方式,提高了确定频率补偿值的灵活性。It can be seen from the above embodiment that each first TRP/TRP group can determine its own corresponding frequency offset estimation value, and determine its corresponding frequency based on its own corresponding frequency offset estimation value and the same reference point corresponding to each first TRP The compensation value, thereby enriching the implementation methods of determining the frequency compensation value, and improving the flexibility of determining the frequency compensation value.
进一步地,建立在上述方法的基础上,所述(1-1-3)中的根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值,可以采用但不限于以下实现方式:Further, based on the above method, in the (1-1-3), according to the frequency offset estimation result and the reference point, the corresponding frequency compensation value can be determined by but not limited to the following implementations Way:
(1-7-1)第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP用于表征第一TRP中的另一部分TRP。(1-7-1) The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to The third TRP; where the second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
与此对应的,所述步骤130中的根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率,可以采用但不限于以下实现方式:Correspondingly, in the step 130, according to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency of each of the at least one first TRP is determined to be used for downlink transmission, but the following implementation manners may be adopted but not limited to:
(1-7-2)所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;(1-7-2) The second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself;
(1-7-3)所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。(1-7-3) The third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
具体地,各个第一TRP利用第一上行信号分别进行频偏估计(或估计多 普勒频偏),第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并向第三TRP发送自己估计出的频率补偿值,第三TRP根据所述部分RRH发送的频率补偿值确定自身的频率补偿值,并使用所述频率补偿值确定用于下行传输的传输频率。Specifically, each first TRP uses the first uplink signal to separately estimate the frequency offset (or estimate the Doppler frequency offset), and the second TRP determines its own corresponding frequency compensation value according to its own corresponding frequency offset estimate, and sends it to the first TRP. The third TRP sends the frequency compensation value estimated by itself, and the third TRP determines its own frequency compensation value according to the frequency compensation value sent by the partial RRH, and uses the frequency compensation value to determine the transmission frequency for downlink transmission.
其中,第二TRP可以为一个第一TRP或一个TRP组。其中,一个TRP组可以包括一个或多个TRP。Wherein, the second TRP may be a first TRP or a TRP group. Among them, a TRP group can include one or more TRPs.
由上述实施例可见,第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率,从而减少了确定频率补偿值的复杂度,提高了频率补偿的效率。It can be seen from the above embodiment that the second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself; the third TRP determines the frequency compensation value or the second TRP according to the frequency compensation value determined by the second TRP. The frequency offset estimation value corresponding to the TRP determines its own transmission frequency for downlink transmission, thereby reducing the complexity of determining the frequency compensation value and improving the efficiency of frequency compensation.
进一步地,建立在上述方法的基础上,所述步骤120中的利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,可以采用但不限于以下实现方式:Further, based on the foregoing method, the use of the first uplink signal in the step 120 to determine the frequency compensation value corresponding to each of the at least one first TRP may be implemented in but not limited to the following implementation manners:
(1-8-1)至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;(1-8-1) At least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;
(1-8-2)至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。(1-8-2) The at least one first TRP determines the respective frequency compensation value according to the respective frequency offset estimation value.
可选地,上述(1-8-1)中,在各个第一TRP被分成一个或多个TRP组时,可以由各个TRP组对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。其中,每个TRP组的频偏估计值可以是对每个TRP组中的一个第一TRP对应的第一上行信号进行频偏估计,得到该TRP组对应的频偏估计值。Optionally, in the above (1-8-1), when each first TRP is divided into one or more TRP groups, each TRP group may perform frequency offset estimation on the first uplink signal respectively to obtain respective corresponding Estimated value of the frequency offset. The frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
另外,除了(1-8-1)中可以由各个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值之外,还可以由网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号进行频偏估计,得各个第一TRP各自对应的频偏估计值,确定各个第一TRP各自对应的频率补偿值。In addition, in addition to (1-8-1), the frequency offset estimation of the first uplink signal can be performed by each first TRP to obtain the respective frequency offset estimation values, and the network-side equipment can also include The central processing unit connected to the first TRP uses the first uplink signal to perform frequency offset estimation, obtains the frequency offset estimation value corresponding to each first TRP, and determines the frequency compensation value corresponding to each first TRP.
可选地,在各个第一TRP被分成一个或多个TRP组时,中央处理单元可 以对所述第一上行信号进行频偏估计,得到每个TRP组对应的频偏估计值。其中,每个TRP组的频偏估计值可以是对每个TRP组中的一个第一TRP对应的第一上行信号进行频偏估计,得到该TRP组对应的频偏估计值。Optionally, when each first TRP is divided into one or more TRP groups, the central processing unit may perform frequency offset estimation on the first uplink signal to obtain a frequency offset estimation value corresponding to each TRP group. The frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
上述(1-8-2)中,在各个第一TRP被分成一个或多个TRP组时,可以由各个TRP组根据各自对应的频偏估计值,确定各自对应的频率补偿值,再进一步确定出各个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。In the above (1-8-2), when each first TRP is divided into one or more TRP groups, each TRP group can determine its corresponding frequency compensation value according to its corresponding frequency offset estimation value, and then further determine The frequency compensation value corresponding to each first TRP is obtained. Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
另外,除了(1-8-2)中可以由各个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值之外,还可以由网络侧设备中包括的连接第一TRP的中央处理单元根据各个第一TRP各自对应的频偏估计值,确定各个第一TRP各自对应的频率补偿值。In addition, in addition to (1-8-2), each first TRP can determine its corresponding frequency compensation value according to its corresponding frequency offset estimation value, and it can also be included in the network side device connected to the first TRP. The central processing unit determines the frequency compensation value corresponding to each first TRP according to the frequency offset estimation value corresponding to each first TRP.
可选地,在各个第一TRP被分成一个或多个TRP组时,中央处理单元可以根据每个TRP组的频偏估计值,确定每个TRP组对应的频率补偿值,再进一步确定出各个第一TRP各自对应的频率补偿值。其中,针对每个TRP组中的所有第一TRP,其对应的频率补偿值可以是相同的,均为该TRP组对应的频率补偿值。Optionally, when each first TRP is divided into one or more TRP groups, the central processing unit may determine the frequency compensation value corresponding to each TRP group according to the frequency offset estimation value of each TRP group, and then further determine each TRP group. The frequency compensation value corresponding to each of the first TRP. Among them, for all the first TRPs in each TRP group, the corresponding frequency compensation values may be the same, and they are all frequency compensation values corresponding to the TRP group.
可选地,各个TRP或TRP组根据频偏估计结果,确定各自对应的频率补偿值的方法为:使用频偏估计值作为频率补偿值。Optionally, each TRP or TRP group determines the corresponding frequency compensation value according to the frequency offset estimation result: using the frequency offset estimation value as the frequency compensation value.
可选地,各个TRP或TRP组根据频偏估计结果,确定各自对应的频率补偿值的方法为:使用频偏估计值的负值作为频率补偿值。Optionally, each TRP or TRP group determines the corresponding frequency compensation value according to the frequency offset estimation result: using the negative value of the frequency offset estimation value as the frequency compensation value.
可选地,中央处理单元根据频偏估计结果,确定各个TRP或TRP组对应的频率补偿值的方法为:针对各个TRP或TRP组,使用与其对应的频偏估计值作为频率补偿值。Optionally, the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result is: for each TRP or TRP group, use the frequency offset estimation value corresponding to it as the frequency compensation value.
可选地,中央处理单元根据频偏估计结果,确定各个TRP或TRP组对应的频率补偿值的方法为:针对各个TRP或TRP组,使用与其对应的频偏估计值的负值作为频率补偿值。Optionally, the method for the central processing unit to determine the frequency compensation value corresponding to each TRP or TRP group according to the frequency offset estimation result is: for each TRP or TRP group, use the negative value of the corresponding frequency offset estimation value as the frequency compensation value .
由上述实施例可见,在用于确定所述频率补偿值的参考点为0时,各个 第一TRP/TRP组在对所述第一上行信号分别进行频偏估计(或估计多普勒频偏)后,可以直接根据各自对应的频偏估计值,确定各自对应的频率补偿值,进一步提高了频率补偿的效率。It can be seen from the above embodiment that when the reference point for determining the frequency compensation value is 0, each first TRP/TRP group performs frequency offset estimation (or estimation of Doppler frequency offset) on the first uplink signal. ), the corresponding frequency compensation value can be determined directly according to the corresponding frequency offset estimation value, which further improves the efficiency of frequency compensation.
进一步地,建立在上述方法的基础上,所述步骤130中的下行传输可以包括终端专属的下行信号的传输。Further, based on the foregoing method, the downlink transmission in the step 130 may include the transmission of a downlink signal exclusive to the terminal.
具体地,终端专属的下行信号的传输包括但不限于:PDSCH(Physical Downlink Shared Channel,物理下行共享信道)、终端专属的PDCCH(Physical Downlink Control Channel,物理下行控制信道)、PDSCH的DMRS、PDCCH的DMRS、PT-RS(相位参考信号)等。Specifically, the terminal-specific downlink signal transmission includes but is not limited to: PDSCH (Physical Downlink Shared Channel), terminal-specific PDCCH (Physical Downlink Control Channel), PDSCH DMRS, PDCCH DMRS, PT-RS (phase reference signal), etc.
由上述实施例可见,通过根据各个第一TRP各自对应的频率补偿值,确定各个第一TRP各自用于下行传输的传输频率,这样在终端专属的下行信号的传输时,可以有效地消除了终端侧的多普勒扩展,进一步提高了终端专属的下行信号的传输的性能。It can be seen from the above embodiment that by determining the transmission frequency of each first TRP for downlink transmission according to the corresponding frequency compensation value of each first TRP, this can effectively eliminate the terminal-specific downlink signal transmission during the terminal-specific transmission. The Doppler expansion on the side further improves the performance of the terminal-specific downlink signal transmission.
进一步地,建立在上述方法的基础上,所述(1-1-1)中的利用所述第一上行信号进行频偏估计,得到频偏估计结果,可以采用但不限于以下实现方式:Further, based on the above method, the frequency offset estimation using the first uplink signal in (1-1-1) to obtain the frequency offset estimation result may be implemented by, but not limited to, the following implementation manners:
(1-9-1)至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。(1-9-1) At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
可选地,在各个第一TRP被分成一个或多个TRP组时,可以由各个TRP组对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。其中,每个TRP组的频偏估计值可以是对每个TRP组中的一个第一TRP对应的第一上行信号进行频偏估计,得到该TRP组对应的频偏估计值。Optionally, when each first TRP is divided into one or more TRP groups, each TRP group may perform frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values. The frequency offset estimation value of each TRP group may be the frequency offset estimation of the first uplink signal corresponding to a first TRP in each TRP group to obtain the frequency offset estimation value corresponding to the TRP group.
由上述实施例可见,在利用所述第一上行信号进行频偏估计,得到频偏估计结果时,可以是各个第一TRP/TRP组对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,从而提高了确定频偏估计值的效率。It can be seen from the foregoing embodiment that when the frequency offset estimation result is obtained by using the first uplink signal to obtain the frequency offset estimation result, each first TRP/TRP group may perform frequency offset estimation on the first uplink signal to obtain each Corresponding frequency offset estimation value, thereby improving the efficiency of determining the frequency offset estimation value.
进一步地,建立在上述方法的基础上,所述(1-8-1)和(1-9-1)中的各个第一TRP可以使用相同的所述第一上行信号进行各个第一TRP的频偏估计。Further, based on the above method, each of the first TRPs in (1-8-1) and (1-9-1) may use the same first uplink signal to perform each first TRP Frequency offset estimation.
进一步地,建立在上述方法的基础上,所述(1-8-1)和(1-9-1)中的第一上行信号中可以包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;与此对应的,所述(1-8-1)和(1-9-1)中的各个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,可以采用但不限于以下实现方式:Further, based on the above method, the first uplink signal in (1-8-1) and (1-9-1) may include the corresponding first TRP for frequency offset estimation. Correspondingly, each of the first TRPs in (1-8-1) and (1-9-1) performs frequency offset estimation on the first uplink signal to obtain their respective corresponding The frequency offset estimation value of, can adopt but not limited to the following implementation methods:
(1-10-1)至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。(1-10-1) At least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
由上述实施例可见,各个第一TRP可以使用相同的第一上行信号进行频偏估计,也可以使用各自对应的第二上行信号分别进行频偏估计,从而丰富了频偏估计的实现方式,提高了频偏估计的灵活性。It can be seen from the above embodiment that each first TRP can use the same first uplink signal for frequency offset estimation, or use the corresponding second uplink signal for frequency offset estimation separately, thereby enriching the implementation of frequency offset estimation and improving The flexibility of frequency offset estimation is improved.
进一步地,建立在上述方法的基础上,还包括:Further, based on the above method, it also includes:
(1-11-1)向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。可选地,所述关联关系通过以下任一消息来指示:(1-11-1) Send the association relationship between the at least one first TRP and the second uplink signal to the terminal. Optionally, the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息(SpatialRelationInfo);The spatial relationship information (SpatialRelationInfo) of the second uplink signal;
所述第二上行信号的TCI(Transmission Configuration Indicator,传输配置指示)状态;The TCI (Transmission Configuration Indicator) state of the second uplink signal;
所述第二上行信号QCL(Quasi Co-Location,准共址)指示信息。The second uplink signal QCL (Quasi Co-Location, quasi co-location) indicates information.
其中,空间关系信息可用来指示与第二上行信号相关联的下行信号,以使得根据下行信号的接收空间滤波器确定上行信号的发送空间滤波器(或根据下行信号的接收波束确定上行信号的发送波束),用来发送所述下行信号的第一TRP/第一TRP组为接收所述上行信号的第一TRP/第一TRP组。Wherein, the spatial relationship information can be used to indicate the downlink signal associated with the second uplink signal, so that the transmit spatial filter of the uplink signal is determined according to the receive spatial filter of the downlink signal (or the transmit spatial filter of the uplink signal is determined according to the receive beam of the downlink signal). Beam), the first TRP/first TRP group used to send the downlink signal is the first TRP/first TRP group receiving the uplink signal.
可选地,所述第二上行信号的TCI(Transmission Configuration Indicator,传输配置指示)状态的形式与NR***或LTE***中下行信号的TCI state指示方式类似。例如,一个TCI状态包含一个用来确定上行信号的某种QCL类型的下行信号。Optionally, the form of the TCI (Transmission Configuration Indicator) state of the second uplink signal is similar to that of the TCI state of the downlink signal in the NR system or the LTE system. For example, a TCI state contains a downlink signal of a certain QCL type used to determine the uplink signal.
可选地,QCL指示信息中包含QCL的类型,如多普勒频移(Doppler shift),多普勒扩展(Doppler Spread)等。再或者,QCL指示信息用来指示相关联的下行信号,且发送该下行信号的第一TRP/第一TRP组与接收该第二上行信号 的第一TRP/第一TRP组相同。Optionally, the QCL indication information includes the type of QCL, such as Doppler shift, Doppler Spread, and so on. Alternatively, the QCL indication information is used to indicate the associated downlink signal, and the first TRP/first TRP group sending the downlink signal is the same as the first TRP/first TRP group receiving the second uplink signal.
由上述实施例可见,通过向终端发送所述各个第一TRP与所述第二上行信号的关联关系,这样终端可以根据该关联关系向网络侧设备发送对应的第一上行信号,该第一上行信号中可以包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号,从而提高了频率补偿的可靠性。It can be seen from the above embodiment that by sending the association relationship between each of the first TRPs and the second uplink signal to the terminal, the terminal can send the corresponding first uplink signal to the network side device according to the association relationship, and the first uplink signal The signal may include the second uplink signal used for frequency offset estimation corresponding to each first TRP, thereby improving the reliability of frequency compensation.
图2为本申请实施例提供的一种频率补偿方法的流程图,该频率补偿方法可以用于终端;如图2所示,该方法包括如下步骤:FIG. 2 is a flowchart of a frequency compensation method provided by an embodiment of the application. The frequency compensation method may be used in a terminal; as shown in FIG. 2, the method includes the following steps:
步骤210:根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号。Step 210: Generate a first uplink signal for frequency compensation according to the configuration or instruction of the network side device.
具体地,终端可以基于网络侧的配置发送第一上行信号,即网络侧发送了配置信息,终端根据这个配置信息去发送第一上行信号;也可以是网络侧发送了第一上行信号的配置信息,但还需要一个指示信息指示终端发送该第一上行信号(例如通过触发信令或激活信令),用户设备UE接收到该指示信息才发送第一上行信号。Specifically, the terminal may send the first uplink signal based on the configuration of the network side, that is, the network side sends configuration information, and the terminal sends the first uplink signal according to this configuration information; it may also be that the network side sends the configuration information of the first uplink signal However, an indication information is also needed to instruct the terminal to send the first uplink signal (for example, through trigger signaling or activation signaling), and the user equipment UE can send the first uplink signal only after receiving the indication information.
可选地,网络侧设备包含中央处理单元和TRP,该网络侧设备的配置或指示可以是中央处理单元执行的,也可以是TRP执行的。Optionally, the network side device includes a central processing unit and a TRP, and the configuration or instructions of the network side device may be executed by the central processing unit or the TRP.
步骤220:将第一上行信号发送至网络侧设备,以使网络侧设备利用一个或多个第一TRP接收终端发送的第一上行信号,利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。Step 220: Send the first uplink signal to the network side device, so that the network side device uses one or more first TRPs to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine the respective corresponding to at least one first TRP. The frequency compensation value determines the transmission frequency of each of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
可选地,多个第一TRP被进行了分组(分为一个或多个TRP组),一个或多个TRP组利用组内的一部分第一TRP进行终端发送的用于频率补偿的第一上行信号的接收。例如,每个第一TRP组使用一个第一TRP进行第一上行信号的接收。Optionally, multiple first TRPs are grouped (divided into one or more TRP groups), and one or more TRP groups use a part of the first TRPs in the group for the first uplink sent by the terminal for frequency compensation Signal reception. For example, each first TRP group uses one first TRP to receive the first uplink signal.
可选地,至少一个第一TRP都进行终端发送的用于频率补偿的第一上行信号的接收。Optionally, at least one first TRP receives the first uplink signal for frequency compensation sent by the terminal.
其中,第一上行信号可以是SRS、随机接入信号、以及其他可以用于频率补偿的参考信号等。其中,随机接入信号可以通过PRACH发送。Wherein, the first uplink signal may be an SRS, a random access signal, and other reference signals that can be used for frequency compensation. Among them, the random access signal can be sent through PRACH.
另外,本申请实施例中的TRP可以为网络侧设备的天线单元组、RRH等。In addition, the TRP in the embodiment of the present application may be an antenna unit group of a network side device, an RRH, and so on.
由上述实施例可见,可以根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号,并将第一上行信号发送至网络侧设备,这样网络侧设备就可以利用一个或多个第一TRP接收终端发送的第一上行信号;利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值;根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率,使得至少一个第一TRP在进行下行传输时,可以使用频率补偿后的传输频率进行下行传输,从而实现了针对至少一个第一TRP在进行下行传输时的频率补偿,有效地消除了终端侧的多普勒扩展,还提高了下行传输的性能。It can be seen from the above embodiment that the first uplink signal for frequency compensation can be generated according to the configuration or instruction of the network side device, and the first uplink signal is sent to the network side device, so that the network side device can use one or more The first TRP receives the first uplink signal sent by the terminal; uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP; and determines each of the at least one first TRP according to the frequency compensation value corresponding to each of the at least one first TRP. The transmission frequency used for downlink transmission, so that when at least one first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission, thereby realizing frequency compensation for the at least one first TRP when performing downlink transmission, The Doppler spread on the terminal side is effectively eliminated, and the performance of downlink transmission is also improved.
进一步地,建立在上述方法的基础上,所述步骤220中至少一个第一TRP用于进行频偏估计的所述第一上行信号可以是相同的。Further, based on the foregoing method, the first uplink signals used for frequency offset estimation of the at least one first TRP in the step 220 may be the same.
进一步地,建立在上述方法的基础上,所述步骤220中所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。Further, based on the foregoing method, the first uplink signal in the step 220 includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
进一步地,建立在上述方法的基础上,所述频率补偿方法还包括:Further, based on the above method, the frequency compensation method further includes:
(2-1-1)接收所述至少一个第一TRP与所述第二上行信号的关联关系。(2-1-1) Receive the association relationship between the at least one first TRP and the second uplink signal.
可选地,所述关联关系通过以下任一消息来指示:Optionally, the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息(SpatialRelationInfo);The spatial relationship information (SpatialRelationInfo) of the second uplink signal;
所述第二上行信号的TCI状态;The TCI state of the second uplink signal;
所述第二上行信号QCL指示信息。The second uplink signal QCL indicates information.
进一步地,建立在上述方法的基础上,所述(2-1-1)中的关联关系中指示了与所述第一上行信号相关联的下行信号;所述频率补偿方法还包括:Further, based on the above method, the association relationship in (2-1-1) indicates a downlink signal associated with the first uplink signal; the frequency compensation method further includes:
(2-2-1)接收与所述第二上行信号相关联的下行信号;(2-2-1) Receive a downlink signal associated with the second uplink signal;
与此对应的,所述步骤220中的将所述第一上行信号发送至网络侧设备,可以采用但不限于以下实现方式:Correspondingly, the sending of the first uplink signal to the network side device in the step 220 may adopt but not limited to the following implementation manners:
(2-3-1)基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。(2-3-1) Based on the reception of the downlink signal, sending the first uplink signal to the network side device.
具体地,终端可以进行下行信号检测,获得下行频点,基于所述下行频 点发送所述第一上行信号。其中,下行信号可以是SSB或TRS等。Specifically, the terminal may perform downlink signal detection, obtain a downlink frequency point, and send the first uplink signal based on the downlink frequency point. Among them, the downlink signal can be SSB or TRS.
可选地,终端基于一个下行信号确定一个下行频点,并基于该下行频点确定一个上行频点,然后利用该上行频点作为发送所有第一上行信号的上行频点。Optionally, the terminal determines a downlink frequency point based on a downlink signal, and determines an uplink frequency point based on the downlink frequency point, and then uses the uplink frequency point as an uplink frequency point for sending all the first uplink signals.
可选地,终端基于多个下行信号确定多个下行频点,并基于所述多个下行频点确定多个上行频点,然后利用这些上行频点作为发送第一上行信号的上行频点。例如,第一上行信号包括多个第二上行信号,每个第二上行信号与一个TRP或一个TRP组发送的下行信号相关联,任一第二上行信号的上行频点根据与它相关联的下行信号确定的下行频点确定。Optionally, the terminal determines multiple downlink frequency points based on multiple downlink signals, and determines multiple uplink frequency points based on the multiple downlink frequency points, and then uses these uplink frequency points as uplink frequency points for sending the first uplink signal. For example, the first uplink signal includes multiple second uplink signals, and each second uplink signal is associated with a TRP or a downlink signal sent by a TRP group, and the uplink frequency of any second uplink signal is based on the uplink frequency associated with it. The downlink frequency point determined by the downlink signal is determined.
可选地,一种终端基于下行频点确定上行频点的方式为:上行频点等于下行频点加上下行频率偏差。所述上下行频率偏差为网络设备指示给终端的,或者协议规定的,或者终端根据网络设备的指示信息确定的。Optionally, a manner in which the terminal determines the uplink frequency point based on the downlink frequency point is: the uplink frequency point is equal to the downlink frequency point plus the downlink frequency deviation. The uplink and downlink frequency deviations are indicated to the terminal by the network equipment, or stipulated by the protocol, or determined by the terminal according to the indication information of the network equipment.
在本申请的各实施例中,上行频点与下行频点都是参考频率,即可以用来确定下行射频信道和/或SSB和/或其他单元的频率位置的频率。例如,下行频点为用来确定下行信道(如PDSCH、PDCCH等)、SSB、下行参考信号(例如下行DMRS、CSI-RS、TRS)等下行传输的频率的参考频率。例如,上行频点为用来确定上行信道(PUSCH、PUCCH、PRACH等)、上行参考信号(例如SRS)等上行传输的频率的参考频率。In the embodiments of the present application, both the uplink frequency point and the downlink frequency point are reference frequencies, that is, frequencies that can be used to determine the frequency position of the downlink radio frequency channel and/or SSB and/or other units. For example, the downlink frequency point is a reference frequency used to determine the downlink transmission frequency of downlink channels (such as PDSCH, PDCCH, etc.), SSB, and downlink reference signals (such as downlink DMRS, CSI-RS, TRS). For example, the uplink frequency point is a reference frequency used to determine the frequency of uplink transmission such as uplink channel (PUSCH, PUCCH, PRACH, etc.), uplink reference signal (for example, SRS).
可选地,终端可以基于下行信号确定上行信号的频率;根据下行信号的接收空间滤波器确定上行信号的发送空间滤波器;根据下行信号的接收波束确定上行信号的发送波束;等。Optionally, the terminal may determine the frequency of the uplink signal based on the downlink signal; determine the transmit spatial filter of the uplink signal based on the receive spatial filter of the downlink signal; determine the transmit beam of the uplink signal based on the receive beam of the downlink signal; etc.
由上述实施例可见,针对各个第一TRP,终端可以发送相同的第一上行信号,也可以发送各个第一TRP各自对应的第二上行信号,从而丰富了频率补偿方式,提高了频率补偿的灵活性。It can be seen from the above embodiment that for each first TRP, the terminal can send the same first uplink signal, or can also send the second uplink signal corresponding to each first TRP, thereby enriching the frequency compensation methods and improving the flexibility of frequency compensation. sex.
下面针对图1和图2所示的频率补偿方法,通过具体示例进行说明。The following describes the frequency compensation methods shown in FIG. 1 and FIG. 2 through specific examples.
示例1:Example 1:
一个BBU连接了4个TRP,按照列车的运行方向,列车经过这些TRP的顺序将是TRP1、TRP2、TRP3、TRP4。假设下行信号的频点为f
DL,TRP和 终端的多普勒频偏估计为理想估计,TRP1、TRP2、TRP3、TRP4单向的多普勒频移分别为f1、f2、f3、f4,频率补偿的参考点为f0+f1,频率补偿值为参考点与TRP估计出的多普勒频移值的差值。
A BBU is connected to 4 TRPs. According to the running direction of the train, the order in which the train passes through these TRPs will be TRP1, TRP2, TRP3, and TRP4. Assuming that the frequency of the downlink signal is f DL , the Doppler frequency offset of TRP and the terminal is an ideal estimate. The unidirectional Doppler frequency shifts of TRP1, TRP2, TRP3, and TRP4 are f1, f2, f3, and f4, respectively. The reference point for compensation is f0+f1, and the frequency compensation value is the difference between the reference point and the Doppler shift value estimated by TRP.
其中,无频率补偿时来自各TRP的下行信号到达UE时的频率(假设没有考虑下行信号资源位置相对于下行频点的偏移)为:TRP1为f
DL+f1;TRP2为f
DL+f2;TRP3为f
DL+f2;TRP4为f
DL+f2;
Among them, the frequency when the downlink signal from each TRP arrives at the UE without frequency compensation (assuming that the offset of the downlink signal resource position relative to the downlink frequency is not considered) is: TRP1 is f DL + f1; TRP2 is f DL + f2; TRP3 is f DL +f2; TRP4 is f DL +f2;
假设终端确定的上行频点为:f
UL;
Assume that the uplink frequency point determined by the terminal is: f UL ;
则TRP接收到的上行信号到达TRP时的频率(假设没有考虑上行信号资源位置相对于下行频点的偏移)为:TRP1为f
UL+f1;TRP2为f
UL+f2;TRP3为f
UL+f3;TRP4为f
UL+f4;
Then the frequency when the uplink signal received by TRP reaches the TRP (assuming that the offset of the uplink signal resource position relative to the downlink frequency is not considered) is: TRP1 is f UL + f1; TRP2 is f UL + f2; TRP3 is f UL + f3; TRP4 is f UL + f4;
TRP使用如下频率补偿值:TRP1为f0;TRP2为f0+f1-f2;TRP3为f0+f1-f3;TRP4为f0+f1-f4;TRP uses the following frequency compensation values: TRP1 is f0; TRP2 is f0+f1-f2; TRP3 is f0+f1-f3; TRP4 is f0+f1-f4;
则频率补偿后到达UE的来自于各TRP的下行信号的频率为:TRP1为f
DL+f0+f1;TRP2为f
DL+f0+f1;TRP3为f
DL+f0+f1;TRP4为f
DL+f0+f1。
Then the frequency of the downlink signal from each TRP arriving at the UE after frequency compensation is: TRP1 is f DL +f0+f1; TRP2 is f DL +f0+f1; TRP3 is f DL +f0+f1; TRP4 is f DL + f0+f1.
由此可见,终端接收到的来自于各个TRP的下行信号的多普勒频移相同,终端可以更容易地估计出多普勒频移,获得更好的下行接收性能。It can be seen that the Doppler frequency shift of the downlink signal from each TRP received by the terminal is the same, and the terminal can more easily estimate the Doppler frequency shift and obtain better downlink reception performance.
示例2:Example 2:
一个BBU连接了4个TRP,按照列车的运行方向,列车经过这些TRP的顺序将是TRP1、TRP2、TRP3、TRP4。其中,假设TRP和终端的多普勒频偏估计为理想估计,TRP1、TRP2、TRP3、TRP4单向的多普勒频移分别为f1、f2、f3、f4,f0为终端确定的上行频点与实际上行频点的差值,频率补偿值为负的TRP估计出的多普勒频移值。A BBU is connected to 4 TRPs. According to the running direction of the train, the order in which the train passes through these TRPs will be TRP1, TRP2, TRP3, and TRP4. Among them, assuming that the Doppler frequency offset of TRP and the terminal is an ideal estimate, the unidirectional Doppler frequency shifts of TRP1, TRP2, TRP3, and TRP4 are f1, f2, f3, and f4, respectively, and f0 is the uplink frequency point determined by the terminal. The difference between the actual line frequency and the Doppler shift value estimated by TRP whose frequency compensation value is negative.
其中,无频率补偿时到达UE的来自于各TRP的下行信号的频率(下行接收频率):TRP1为f
DL+f1;TRP2为f
DL+f2;TRP3为f
DL+f2;TRP4为f
DL+f2;
Among them, the frequency (downlink receiving frequency) of the downlink signal from each TRP that reaches the UE without frequency compensation: TRP1 is f DL + f1; TRP2 is f DL + f2; TRP3 is f DL + f2; TRP4 is f DL + f2;
终端确定的上行频点为:f
UL;
The uplink frequency point determined by the terminal is: f UL ;
TRP接收到的上行信号到达TRP时的频率:TRP1为f
UL+f1;TRP2为f
UL+f2;TRP3为f
UL+f3;TRP4为f
UL+f4;
The frequency when the uplink signal received by TRP reaches the TRP: TRP1 is f UL + f1; TRP2 is f UL + f2; TRP3 is f UL + f3; TRP4 is f UL + f4;
各TRP使用如下频率补偿值:TRP1为f0-f1;TRP2为f0-f2;TRP3为f0-f2; TRP4为f0-f2;Each TRP uses the following frequency compensation values: TRP1 is f0-f1; TRP2 is f0-f2; TRP3 is f0-f2; TRP4 is f0-f2;
则频率补偿后到达UE的来自于各TRP的下行信号的频率为:TRP1为f
DL+f0;TRP2为f
DL+f0;TRP3为f
DL+f0;TRP4为f
DL+f0。
Then the frequency of the downlink signal from each TRP arriving at the UE after frequency compensation is: TRP1 is f DL + f0; TRP2 is f DL + f0; TRP3 is f DL + f0; TRP4 is f DL + f0.
由此可见,在本申请的方案下,UE接收到的来自于各个TRP的下行信号的多普勒频移相同,UE可以更容易地估计出多普勒频移,获得更好的下行接收性能。It can be seen that under the solution of this application, the Doppler frequency shift of the downlink signal from each TRP received by the UE is the same, and the UE can more easily estimate the Doppler frequency shift and obtain better downlink reception performance. .
图3为本申请实施例提供的一种频率补偿装置的模块框图,该频率补偿装置可以用于网络侧设备,比如:网络侧设备可以包括BBU和TRP等;如图3所示,该频率补偿装置可以包括:Figure 3 is a block diagram of a frequency compensation device provided by an embodiment of the application. The frequency compensation device can be used for network-side equipment. For example, the network-side equipment can include BBU, TRP, etc.; as shown in Figure 3, the frequency compensation The device may include:
接收模块31,用于利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;The receiving module 31 is configured to use one or more first transmission receiving points TRP to receive the first uplink signal used for frequency compensation sent by the terminal;
频率补偿确定模块32,用于利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;The frequency compensation determining module 32 is configured to use the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP;
传输频率确定模块33,用于根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。The transmission frequency determining module 33 is configured to determine the transmission frequency of each of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
进一步地,建立在上述装置的基础上,所述频率补偿确定模块用于,利用所述第一上行信号确定各个第一TRP各自对应的频率补偿值。Further, based on the above-mentioned device, the frequency compensation determining module is configured to determine the frequency compensation value corresponding to each first TRP by using the first uplink signal.
进一步地,建立在上述装置的基础上,所述频率补偿确定模块包括:Further, based on the above device, the frequency compensation determining module includes:
频偏估计子模块,用于利用所述第一上行信号进行频偏估计,得到频偏估计结果;A frequency offset estimation sub-module, configured to use the first uplink signal to perform frequency offset estimation to obtain a frequency offset estimation result;
参考点确定子模块,用于确定用于频率补偿的参考点;The reference point determination sub-module is used to determine the reference point used for frequency compensation;
频率补偿值确定子模块,用于根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The frequency compensation value determining sub-module is configured to determine the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
进一步地,建立在上述装置的基础上,所述频偏估计子模块具体用于:Further, based on the above device, the frequency offset estimation submodule is specifically configured to:
至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
进一步地,建立在上述装置的基础上,所述参考点确定子模块具体用于:Further, based on the above-mentioned device, the reference point determination submodule is specifically configured to:
按照设定规则或终端发送的参考点指示信息,确定所述参考点。Determine the reference point according to the set rule or the reference point indication information sent by the terminal.
进一步地,建立在上述装置的基础上,所述设定规则包括以下任一项:Further, based on the above device, the setting rule includes any one of the following:
所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值;The reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最小的频偏估计值;The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值。The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
进一步地,建立在上述装置的基础上,所述参考点指示信息包括以下任一项:Further, based on the foregoing device, the reference point indication information includes any one of the following:
所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;
所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值为所述参考点。The reference point indication information is indication information about the first uplink signal; wherein, the frequency offset estimated by the network side device using the first uplink signal indicated by the indication information is the reference point.
进一步地,建立在上述装置的基础上,所述参考点确定子模块包括:Further, based on the above-mentioned device, the reference point determination sub-module includes:
第一确定单元,用于所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;或者A first determining unit, configured to determine the reference point according to the frequency offset estimation result by the at least one first TRP; or
第二确定单元,用于所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果确定所述参考点。The second determining unit is configured to determine the reference point according to the frequency offset estimation result by the central processing unit connected to the first TRP included in the network side device.
进一步地,建立在上述装置的基础上,所述第一确定单元具体用于:Further, based on the foregoing device, the first determining unit is specifically configured to:
至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点。The at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
进一步地,建立在上述装置的基础上,所述频率补偿值确定子模块包括:Further, based on the above device, the frequency compensation value determining sub-module includes:
第三确定单元,具体用于所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者The third determining unit is specifically configured to determine the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point; or
第四确定单元,具体用于所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The fourth determining unit is specifically configured to determine the frequency compensation corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point by the central processing unit connected to the first TRP included in the network side device value.
进一步地,建立在上述装置的基础上,所述第三确定单元具体用于:Further, based on the foregoing device, the third determining unit is specifically configured to:
所述至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定自身对应的频率补偿值。The at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
进一步地,建立在上述装置的基础上,所述频率补偿值确定子模块具体用于:Further, based on the above device, the frequency compensation value determining submodule is specifically configured to:
第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP用于表征第一TRP中的另一部分TRP。The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP; The second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
进一步地,建立在上述装置的基础上,所述传输频率确定模块包括:Further, based on the above device, the transmission frequency determination module includes:
第一频率确定子模块,用于所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;The first frequency determining submodule is configured to determine the transmission frequency used by the second TRP for downlink transmission according to the frequency compensation value determined by the second TRP;
第二频率确定子模块,用于所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。The second frequency determining submodule is configured to determine the transmission frequency used by the third TRP for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
进一步地,建立在上述装置的基础上,所述频率补偿确定模块包括:Further, based on the above device, the frequency compensation determining module includes:
第一处理子模块,用于所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值;或者A first processing sub-module, configured to determine the respective corresponding frequency compensation value by the at least one first TRP using the first uplink signal; or
第二处理子模块,用于所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号,确定所述至少一个第一TRP各自对应的频率补偿值。The second processing sub-module is used for the central processing unit connected to the first TRP included in the network side device to determine the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal.
进一步地,建立在上述装置的基础上,所述第一处理子模块具体用于:Further, based on the foregoing device, the first processing submodule is specifically configured to:
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;
所述至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。The at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
进一步地,建立在上述装置的基础上,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;Further, based on the foregoing device, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
进一步地,建立在上述装置的基础上,还包括:Further, based on the above device, it also includes:
关联关系发送模块,用于向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。The association relationship sending module is configured to send the association relationship between the at least one first TRP and the second uplink signal to the terminal.
进一步地,建立在上述装置的基础上,所述关联关系通过以下任一消息来指示:Further, based on the above device, the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
在此需要说明的是,本实施例提供的装置能够实现上述方法实施例所能够实现的所有方法步骤,并能够达到相同的有益效果,在此不再对本装置实施例中与上述方法实施例中的相同内容以及有益效果进行赘述。It should be noted here that the device provided in this embodiment can implement all the method steps that can be implemented in the above method embodiments, and can achieve the same beneficial effects. The same content and beneficial effects will be repeated.
图4为本申请实施例提供的一种频率补偿装置的模块框图,该频率补偿装置可以用于终端;如图4所示,该频率补偿装置可以包括:FIG. 4 is a block diagram of a frequency compensation device provided by an embodiment of the application. The frequency compensation device may be used in a terminal; as shown in FIG. 4, the frequency compensation device may include:
生成模块41,用于根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;The generating module 41 is configured to generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
发送模块42,用于将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值, 根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。The sending module 42 is configured to send the first uplink signal to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal An uplink signal determines the frequency compensation value corresponding to each of the at least one first TRP, and determines the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
进一步地,建立在上述装置的基础上,至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。Further, based on the foregoing device, the first uplink signals used for frequency offset estimation of at least one first TRP are the same.
进一步地,建立在上述装置的基础上,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。Further, based on the foregoing device, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
进一步地,建立在上述装置的基础上,该频率补偿装置还包括:Further, based on the above device, the frequency compensation device further includes:
关联关系接收模块,用于接收所述至少一个第一TRP与所述第二上行信号的关联关系;可选地,所述关联关系通过以下任一消息来指示:The association relationship receiving module is configured to receive the association relationship between the at least one first TRP and the second uplink signal; optionally, the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
进一步地,建立在上述装置的基础上,所述关联关系中指示了与所述第一上行信号相关联的下行信号;该频率补偿装置还包括:Further, based on the foregoing device, the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation device further includes:
关联关系接收模块,用于接收与所述第二上行信号相关联的下行信号;An association relationship receiving module, configured to receive a downlink signal associated with the second uplink signal;
与此对应的,所述发送模块42可以包括:Correspondingly, the sending module 42 may include:
发送子模块,用于基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。The sending submodule is configured to send the first uplink signal to the network side device based on the reception of the downlink signal.
在此需要说明的是,本实施例提供的装置能够实现上述方法实施例所能够实现的所有方法步骤,并能够达到相同的有益效果,在此不再对本装置实施例中与上述方法实施例中的相同内容以及有益效果进行赘述。It should be noted here that the device provided in this embodiment can implement all the method steps that can be implemented in the above method embodiments, and can achieve the same beneficial effects. The same content and beneficial effects will be repeated.
图5为本申请实施例提供的一种终端的结构示意图,如图5所示,该终端500可以包括:至少一个处理器501、存储器502、至少一个网络接口504和其他的用户接口503。终端500中的各个组件通过总线***505耦合在一起。可理解,总线***505用于实现这些组件之间的连接通信。总线***505除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图5中将各种总线都标为总线***505。FIG. 5 is a schematic structural diagram of a terminal provided by an embodiment of the application. As shown in FIG. 5, the terminal 500 may include: at least one processor 501, a memory 502, at least one network interface 504, and other user interfaces 503. The various components in the terminal 500 are coupled together through the bus system 505. It can be understood that the bus system 505 is used to implement connection and communication between these components. In addition to the data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 505 in FIG. 5.
其中,用户接口503可以包括显示器、键盘或者点击设备,例如鼠标,轨 迹球(trackball)、触感板或者触摸屏等。Wherein, the user interface 503 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch panel, or a touch screen.
可以理解,本申请实施例中的存储器502可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请各实施例所描述的***和方法的存储器502旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory 502 in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) And Direct Rambus RAM (DRRAM). The memory 502 of the system and method described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
在一些实施方式中,存储器502存储了如下的元素,可执行模块或者数据结构,或者他们的子集,或者他们的扩展集,例如:操作***5021和应用程序5022。In some embodiments, the memory 502 stores the following elements, executable modules or data structures, or their subsets, or their extended sets, such as the operating system 5021 and application programs 5022.
其中,操作***5021,包含各种***程序,例如框架层、核心库层、驱动层等,用于实现各种基础业务以及处理基于硬件的任务。应用程序5022,包含各种应用程序,例如媒体播放器(Media Player)、浏览器(Browser)等,用于实现各种应用业务。实现本申请实施例方法的程序可以包含在应用程序5022中。Among them, the operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application program 5022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present application may be included in the application program 5022.
在本申请实施例中,通过调用存储器502存储的计算机程序或指令,具体的,可以是应用程序5022中存储的计算机程序或指令,处理器501用于:In the embodiment of the present application, by calling a computer program or instruction stored in the memory 502, specifically, a computer program or instruction stored in the application program 5022, the processor 501 is used to:
根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一 个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one The frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of the at least one first TRP respectively used for downlink transmission is determined.
上述本申请实施例揭示的方法可以应用于处理器501中,或者由处理器501实现。处理器501可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器501中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器501可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器502,处理器501读取存储器502中的信息,结合其硬件完成上述方法的步骤。The method disclosed in the foregoing embodiment of the present application may be applied to the processor 501 or implemented by the processor 501. The processor 501 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 501 or instructions in the form of software. The aforementioned processor 501 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502, and completes the steps of the foregoing method in combination with its hardware.
可以理解的是,本申请描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。It can be understood that the embodiments described in this application can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
对于软件实现,可通过执行本申请实施例中所述功能的模块(例如过程、函数等)来实现所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。For software implementation, the described technology can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present application. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.
可选地,作为另一个实施例,处理器501还用于:至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。Optionally, as another embodiment, the processor 501 is further configured to: the first uplink signals used for frequency offset estimation of the at least one first TRP are the same.
可选地,作为另一个实施例,处理器501还用于:所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。Optionally, as another embodiment, the processor 501 is further configured to: the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
可选地,作为另一个实施例,处理器501还用于:接收所述至少一个第一TRP与所述第二上行信号的关联关系;可选地,所述关联关系通过以下任一消息来指示:Optionally, as another embodiment, the processor 501 is further configured to: receive an association relationship between the at least one first TRP and the second uplink signal; optionally, the association relationship is received through any of the following messages instruct:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
可选地,作为另一个实施例,所述关联关系中指示了与所述第一上行信号相关联的下行信号;处理器501还用于:Optionally, as another embodiment, the association relationship indicates a downlink signal associated with the first uplink signal; the processor 501 is further configured to:
接收与所述第二上行信号相关联的下行信号;Receiving a downlink signal associated with the second uplink signal;
所述将所述第一上行信号发送至网络侧设备,包括:The sending the first uplink signal to the network side device includes:
基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。Based on the reception of the downlink signal, the first uplink signal is sent to the network side device.
本申请实施例提供的终端能够实现前述实施例中终端实现的各个过程,为避免重复,此处不再赘述。The terminal provided in the embodiment of the present application can implement the various processes implemented by the terminal in the foregoing embodiment, and in order to avoid repetition, details are not described herein again.
由上述实施例可见,可以根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号,并将第一上行信号发送至网络侧设备,这样网络侧设备就可以利用一个或多个第一TRP接收终端发送的第一上行信号;利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值;根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率,使得至少一个第一TRP在进行下行传输时,可以使用频率补偿后的传输频率进行下行传输,从而实现了针对至少一个第一TRP在进行下行传输时的频率补偿,有效地消除了终端侧的多普勒扩展,还提高了下行传输的性能。It can be seen from the above embodiment that the first uplink signal for frequency compensation can be generated according to the configuration or instruction of the network side device, and the first uplink signal is sent to the network side device, so that the network side device can use one or more The first TRP receives the first uplink signal sent by the terminal; uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP; and determines each of the at least one first TRP according to the frequency compensation value corresponding to each of the at least one first TRP. The transmission frequency used for downlink transmission, so that when at least one first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission, thereby realizing frequency compensation for the at least one first TRP when performing downlink transmission, The Doppler spread on the terminal side is effectively eliminated, and the performance of downlink transmission is also improved.
图6为本申请实施例提供的另一种终端的结构示意图,图6中的终端可以为手机、平板电脑、个人数字助理(Personal Digital Assistant,PDA)、或、 电子阅读器、手持游戏机、销售终端(Point of Sales,POS)、车载电子设备(车载电脑)等。如图6所示,该终端包括射频(Radio Frequency,RF)电路610、存储器620、输入单元630、显示单元640、处理器660、音频电路670、WiFi(Wireless Fidelity)模块680和电源690。本领域技术人员可以理解,图6中示出的手机结构并不构成对手机的限定,可以包括比图示更多或更少的部件,或者组合某些部件,或者拆分某些部件,或者不同的部件布置。Figure 6 is a schematic structural diagram of another terminal provided by an embodiment of the application. The terminal in Figure 6 can be a mobile phone, a tablet computer, a personal digital assistant (PDA), or an e-reader, a handheld game console, Point of Sales (POS), in-vehicle electronic equipment (in-vehicle computer), etc. As shown in FIG. 6, the terminal includes a radio frequency (RF) circuit 610, a memory 620, an input unit 630, a display unit 640, a processor 660, an audio circuit 670, a WiFi (Wireless Fidelity) module 680, and a power supply 690. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 6 does not constitute a limitation on the mobile phone, and may include more or less components than those shown in the figure, or combine certain components, or split certain components, or Different component arrangements.
其中,输入单元630可用于接收用户输入的数字或字符信息,以及产生与终端的用户设置以及功能控制有关的信号输入。具体地,本申请实施例中,该输入单元630可以包括触控面板6301。触控面板6301,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板6301上的操作),并根据预先设定的程式驱动相应的连接装置。可选的,触控面板6301可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给该处理器660,并能接收处理器660发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板6301。除了触控面板6301,输入单元630还可以包括其他输入设备6302,其他输入设备6302可用于接收输入的数字或字符信息,以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地,其他输入设备6302可包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆、光鼠(光鼠是不显示可视输出的触摸敏感表面,或者是由触摸屏形成的触摸敏感表面的延伸)等中的一种或多种。Wherein, the input unit 630 can be used to receive numeric or character information input by the user, and generate signal input related to user settings and function control of the terminal. Specifically, in the embodiment of the present application, the input unit 630 may include a touch panel 6301. The touch panel 6301, also called a touch screen, can collect the user's touch operations on or near it (for example, the user's operations on the touch panel 6301 with fingers, stylus, or any other suitable objects or accessories), and can be set according to the preset The specified program drives the corresponding connection device. Optionally, the touch panel 6301 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch position, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it To the processor 660, and can receive and execute the commands sent by the processor 660. In addition, the touch panel 6301 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 6301, the input unit 630 may also include other input devices 6302, and the other input devices 6302 may be used to receive input numbers or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, other input devices 6302 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, optical mice (optical mice are touch sensitive that do not display visual output). A surface, or an extension of a touch-sensitive surface formed by a touch screen).
其中,显示单元640可用于显示由用户输入的信息或提供给用户的信息以及终端的各种菜单界面。显示单元640可包括显示面板6401。其中显示面板8401可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(OrganicLight-Emitting Diode,OLED)等形式来配置显示面板6401。Among them, the display unit 640 can be used to display information input by the user or information provided to the user and various menu interfaces of the terminal. The display unit 640 may include a display panel 6401. The display panel 8401 may be configured with the display panel 6401 in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), etc.
应注意,触控面板6301可以覆盖显示面板6401,形成触摸显示屏,当该触摸显示屏检测到在其上或附近的触摸操作后,传送给处理器660以确定 触摸事件的类型,随后处理器660根据触摸事件的类型在触摸显示屏上提供相应的视觉输出。It should be noted that the touch panel 6301 can cover the display panel 6401 to form a touch screen. When the touch screen detects a touch operation on or near it, it transmits it to the processor 660 to determine the type of touch event, and then the processor 660 provides corresponding visual output on the touch screen according to the type of touch event.
触摸显示屏包括应用程序界面显示区及常用控件显示区。该应用程序界面显示区及该常用控件显示区的排列方式并不限定,可以为上下排列、左右排列等可以区分两个显示区的排列方式。该应用程序界面显示区可以用于显示应用程序的界面。每一个界面可以包含至少一个应用程序的图标和/或widget桌面控件等界面元素。该应用程序界面显示区也可以为不包含任何内容的空界面。该常用控件显示区用于显示使用率较高的控件,例如,设置按钮、界面编号、滚动条、电话本图标等应用程序图标等。The touch screen includes an application program interface display area and a common control display area. The arrangement of the display area of the application program interface and the display area of the commonly used controls is not limited, and can be arranged up and down, left and right, etc., which can distinguish the two display areas. The application program interface display area can be used to display the application program interface. Each interface may include at least one application icon and/or widget desktop control and other interface elements. The application program interface display area can also be an empty interface that does not contain any content. The commonly used control display area is used to display controls with a higher usage rate, such as application icons such as setting buttons, interface numbers, scroll bars, and phonebook icons.
RF电路610可用于收发信息或通话过程中,信号的接收和发送,特别地,将网络侧的下行信息接收后,给处理器660处理;另外,将设计上行的数据发送给网络侧。通常,RF电路610包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器(Low Noise Amplifier,LNA)、双工器等。此外,RF电路610还可以通过无线通信与网络和其他设备通信。所述无线通信可以使用任一通信标准或协议,包括但不限于全球移动通讯***(Global System of Mobilecommunication,GSM)、通用分组无线服务(General Packet Radio Service,GPRS)、码分多址(Code Division Multiple Access,CDMA)、宽带码分多址(Wideband CodeDivision Multiple Access,WCDMA)、长期演进(Long Term Evolution,LTE)、电子邮件、短消息服务(Short Messaging Service,SMS)等。The RF circuit 610 can be used for receiving and sending signals during information transmission or communication. In particular, after receiving the downlink information on the network side, it is processed by the processor 660; in addition, the designed uplink data is sent to the network side. Generally, the RF circuit 610 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 610 can also communicate with the network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile Communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division) Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), Email, Short Messaging Service (SMS), etc.
存储器620用于存储软件程序以及模块,处理器660通过运行存储在存储器620的软件程序以及模块,从而执行终端的各种功能应用以及数据处理。存储器620可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作***、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据终端的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器620可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。The memory 620 is used to store software programs and modules, and the processor 660 executes various functional applications and data processing of the terminal by running the software programs and modules stored in the memory 620. The memory 620 may mainly include a program storage area and a data storage area. The program storage area may store an operating system, an application program required by at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data (such as audio data, phone book, etc.) created by the use of the terminal, etc. In addition, the memory 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other volatile solid-state storage devices.
其中处理器660是终端的控制中心,利用各种接口和线路连接整个手机的各个部分,通过运行或执行存储在第一存储器6201内的软件程序和/或模块,以及调用存储在第二存储器6202内的数据,执行终端的各种功能和处理数据,从而对终端进行整体监控。可选的,处理器660可包括一个或多个处理单元。The processor 660 is the control center of the terminal, which uses various interfaces and lines to connect to various parts of the entire mobile phone, runs or executes the software programs and/or modules stored in the first memory 6201, and calls the software programs and/or modules stored in the second memory 6202. The data in the terminal performs various functions of the terminal and processes the data, so as to monitor the terminal as a whole. Optionally, the processor 660 may include one or more processing units.
在本申请实施例中,通过调用存储该第一存储器6201内的软件程序和/或模块和/或该第二存储器6202内的数据,处理器660用于:In the embodiment of the present application, by calling and storing the software program and/or module in the first memory 6201 and/or data in the second memory 6202, the processor 660 is configured to:
根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one The frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of the at least one first TRP respectively used for downlink transmission is determined.
可选地,作为另一个实施例,处理器660还用于:至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。Optionally, as another embodiment, the processor 660 is further configured to: the first uplink signals used for frequency offset estimation of the at least one first TRP are the same.
可选地,作为另一个实施例,处理器660还用于:所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。Optionally, as another embodiment, the processor 660 is further configured to: the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
可选地,作为另一个实施例,处理器660还用于:接收所述至少一个第一TRP与所述第二上行信号的关联关系;可选地,所述关联关系通过以下任一消息来指示:Optionally, as another embodiment, the processor 660 is further configured to: receive an association relationship between the at least one first TRP and the second uplink signal; optionally, the association relationship is received through any of the following messages instruct:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
可选地,作为另一个实施例,所述关联关系中指示了与所述第一上行信号相关联的下行信号;处理器660还用于:Optionally, as another embodiment, the association relationship indicates a downlink signal associated with the first uplink signal; the processor 660 is further configured to:
接收与所述第二上行信号相关联的下行信号;Receiving a downlink signal associated with the second uplink signal;
所述将所述第一上行信号发送至网络侧设备,包括:The sending the first uplink signal to the network side device includes:
基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。Based on the reception of the downlink signal, the first uplink signal is sent to the network side device.
本申请实施例提供的终端能够实现前述实施例中终端实现的各个过程,为避免重复,此处不再赘述。The terminal provided in the embodiment of the present application can implement the various processes implemented by the terminal in the foregoing embodiment, and in order to avoid repetition, details are not described herein again.
由上述实施例可见,可以根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号,并将第一上行信号发送至网络侧设备,这样网络侧设备就可以利用一个或多个第一TRP接收终端发送的第一上行信号;利用第一上行信号确定各个第一TRP各自对应的频率补偿值;根据各个第一TRP各自对应的频率补偿值,确定各个第一TRP各自用于下行传输的传输频率,使得各个第一TRP在进行下行传输时,可以使用频率补偿后的传输频率进行下行传输,从而实现了针对各个第一TRP在进行下行传输时的频率补偿,有效地消除了终端侧的多普勒扩展,还提高了下行传输的性能。It can be seen from the above embodiment that the first uplink signal for frequency compensation can be generated according to the configuration or instruction of the network side device, and the first uplink signal is sent to the network side device, so that the network side device can use one or more The first TRP receives the first uplink signal sent by the terminal; the first uplink signal is used to determine the frequency compensation value corresponding to each first TRP; according to the frequency compensation value corresponding to each first TRP, it is determined that each first TRP is used for downlink The transmission frequency of the transmission allows each first TRP to use the frequency-compensated transmission frequency for downlink transmission when performing downlink transmission, thereby realizing frequency compensation for each first TRP during downlink transmission, effectively eliminating the terminal The Doppler expansion on the side also improves the performance of downlink transmission.
图7为本申请实施例提供的一种网络侧设备的结构示意图,如图7所示,该网络侧设备700可以包括至少一个处理器701、存储器702、至少一个其他的用户接口703,以及收发机704。网络侧设备700中的各个组件通过总线***705耦合在一起。可理解,总线***705用于实现这些组件之间的连接通信。总线***705除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图7中将各种总线都标为总线***705,总线***可以包括任意数量的互联的总线和桥,具体由处理器701代表的一个或多个处理器和存储器702代表的存储器的各种电路链接在一起。总线***还可以将诸如***设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本申请实施例不再对其进行进一步描述。总线接口提供接口。收发机704可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口703还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。FIG. 7 is a schematic structural diagram of a network-side device provided by an embodiment of the application. As shown in FIG. 7, the network-side device 700 may include at least one processor 701, a memory 702, at least one other user interface 703, and a transceiver机704. The components in the network side device 700 are coupled together through the bus system 705. It can be understood that the bus system 705 is used to implement connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, various buses are marked as the bus system 705 in FIG. 7. The bus system may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 701 and the memory 702 The various circuits of the representative memory are linked together. The bus system can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art. Therefore, the embodiments of the present application will not further describe them. . The bus interface provides the interface. The transceiver 704 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium. For different user equipment, the user interface 703 may also be an interface that can externally and internally connect the required equipment, and the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
可以理解,本申请实施例中的存储器702可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM, EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请各实施例所描述的***和方法的存储器702旨在包括但不限于这些和任意其它适合类型的存储器。It can be understood that the memory 702 in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) And Direct Rambus RAM (DRRAM). The memory 702 of the system and method described in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.
处理器701负责管理总线***和通常的处理,存储器702可以存储处理器701在执行操作时所使用的计算机程序或指令,具体地,处理器701可以用于:The processor 701 is responsible for managing the bus system and general processing. The memory 702 may store computer programs or instructions used by the processor 701 when performing operations. Specifically, the processor 701 may be used for:
利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;Using one or more first transmission receiving points TRP to receive the first uplink signal sent by the terminal for frequency compensation;
利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;Determine the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal;
根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。According to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
上述本申请实施例揭示的方法可以应用于处理器701中,或者由处理器701实现。处理器701可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器701可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结 合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器702,处理器701读取存储器702中的信息,结合其硬件完成上述方法的步骤。The method disclosed in the foregoing embodiment of the present application may be applied to the processor 701 or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The aforementioned processor 701 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. Combining the steps of the method disclosed in the embodiments of the present application may be directly embodied as execution and completion by a hardware decoding processor, or execution and completion by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the foregoing method in combination with its hardware.
可以理解的是,本申请描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现,处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits,ASIC)、数字信号处理器(Digital Signal Processing,DSP)、数字信号处理设备(DSP Device,DSPD)、可编程逻辑设备(Programmable Logic Device,PLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本申请所述功能的其它电子单元或其组合中。It can be understood that the embodiments described in this application can be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application specific integrated circuits (ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing equipment (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, and others for performing the functions described in this application Electronic unit or its combination.
对于软件实现,可通过执行本申请实施例中所述功能的模块(例如过程、函数等)来实现所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。For software implementation, the described technology can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present application. The software codes can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.
可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
利用所述第一上行信号确定各个第一TRP各自对应的频率补偿值。可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The frequency compensation value corresponding to each first TRP is determined by using the first uplink signal. Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
利用所述第一上行信号进行频偏估计,得到频偏估计结果;Performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result;
确定用于频率补偿的参考点;Determine the reference point for frequency compensation;
根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。According to the frequency offset estimation result and the reference point, a frequency compensation value corresponding to each of the at least one first TRP is determined.
可选地,所述利用所述第一上行信号进行频偏估计,得到频偏估计结果,包括:Optionally, the performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result includes:
至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
可选地,所述确定用于频率补偿的参考点,包括:Optionally, the determining the reference point for frequency compensation includes:
按照设定规则或终端发送的参考点指示信息,确定所述参考点。Determine the reference point according to the set rule or the reference point indication information sent by the terminal.
可选地,所述设定规则包括以下任一项:Optionally, the setting rule includes any one of the following:
所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值;The reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最小的频偏估计值;The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;
所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值。The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
可选地,所述参考点指示信息包括以下任一项:Optionally, the reference point indication information includes any one of the following:
所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;
所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;
所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值作为所述参考点。The reference point indication information is indication information about the first uplink signal; wherein, the network side device uses the frequency offset estimation value estimated by the first uplink signal indicated by the indication information as the reference point.
可选地,所述确定用于频率补偿的参考点,包括:Optionally, the determining the reference point for frequency compensation includes:
所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;或者The at least one first TRP determines the reference point according to the frequency offset estimation result; or
所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果确定所述参考点。The central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
可选地,所述至少一个第一TRP根据所述频偏估计结果确定所述参考点,包括:Optionally, the at least one first TRP determining the reference point according to the frequency offset estimation result includes:
至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息 交互的信息确定自身对应的用于确定用于频率补偿的参考点。At least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining frequency compensation according to the information exchanged.
可选地,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者The at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point; or
所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
可选地,所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值,包括:Optionally, the at least one first TRP determining the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point includes:
所述至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定自身对应的频率补偿值。The at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
可选地,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point includes:
第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP用于表征第一TRP中的另一部分TRP。The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP; The second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
可选地,所述根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率,包括:Optionally, the determining the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP includes:
所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;The second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself;
所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。The third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
可选地,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:Optionally, the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal includes:
所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值;或者The at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value; or
所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上 行信号,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
可选地,所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值,包括:Optionally, that the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value includes:
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;
所述至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。The at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
可选地,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;Optionally, the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;
所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:
所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
可选地,还包括:Optionally, it also includes:
向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。Sending the association relationship between the at least one first TRP and the second uplink signal to the terminal.
可选地,还包括:所述关联关系通过以下任一消息来指示:Optionally, it further includes: the association relationship is indicated by any of the following messages:
所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;
所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;
所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
本申请实施例提供的网络侧设备能够实现前述实施例中网络侧设备实现的各个过程,为避免重复,此处不再赘述。The network-side device provided in the embodiment of the present application can implement the various processes implemented by the network-side device in the foregoing embodiment. To avoid repetition, details are not described herein again.
由上述实施例可见,通过利用一个或多个第一TRP接收终端发送的用于频率补偿的第一上行信号,利用第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率,这样在至少一个第一TRP在进行下行传输时,可以使用频率补偿后的传输频率进行下行传输,从而实现了针对各个第一TRP在进行下行传输时的频率补偿,有效地消除了终端侧的多普勒扩展,还提高了下行传输的性能。It can be seen from the above embodiment that one or more first TRPs are used to receive the first uplink signal for frequency compensation sent by the terminal, and the first uplink signal is used to determine the frequency compensation value corresponding to each of the at least one first TRP. The frequency compensation value corresponding to each first TRP determines the transmission frequency of at least one first TRP each used for downlink transmission, so that when at least one first TRP is performing downlink transmission, the frequency-compensated transmission frequency can be used for downlink transmission. In this way, frequency compensation for each first TRP during downlink transmission is realized, the Doppler spread on the terminal side is effectively eliminated, and the performance of downlink transmission is also improved.
上述主要从网络侧设备的角度对本申请实施例提供的方案进行了介绍。可以理解的是,本申请实施例提供的网络侧设备为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本申请中所公开的实施例描述的各示例的单元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。The foregoing mainly introduces the solution provided in the embodiment of the present application from the perspective of the network side device. It can be understood that, in order to implement the foregoing functions, the network-side device provided in the embodiments of the present application includes hardware structures and/or software modules corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed in the present application, the present application can be implemented in the form of hardware or a combination of hardware and computer software.
某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
本申请实施例可以根据上述方法示例对网络侧设备等进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。The embodiments of the present application may divide the network side devices and the like into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的***,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above-mentioned functional modules is used as an example. In practical applications, the above-mentioned functions can be allocated by different functional modules as required, namely The internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the above-described system, device, and unit, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接。In the several embodiments provided in this application, it should be understood that the disclosed device and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be divided. It can be combined or integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections may be indirect couplings or communication connections between devices or units through some interfaces.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作 为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元可以采用软件功能单元的形式实现。In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of a software functional unit.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,该技术方案的全部或部分可以以计算机软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器执行本申请各个实施例所述方法的全部或部分步骤。所述计算机存储介质是非短暂性(英文:nontransitory)介质,包括:快闪存储器、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, all or part of the technical solution can be embodied in the form of a computer software product. The computer software product is stored in a storage medium and includes several instructions to enable a computer device (which can be a personal computer, a server). , Or a network device, etc.) or a processor executes all or part of the steps of the method described in each embodiment of the present application. The computer storage medium is a nontransitory (English: nontransitory) medium, including: flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.
另一方面,本申请实施例还提供一种非暂态计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现以执行上述各实施例提供的方法,包括:On the other hand, the embodiments of the present application also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the methods provided in the foregoing embodiments, including:
利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;Using one or more first transmission receiving points TRP to receive the first uplink signal sent by the terminal for frequency compensation;
利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;Determine the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal;
根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。According to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency each of the at least one first TRP is used for downlink transmission is determined.
另一方面,本申请实施例还提供一种非暂态计算机可读存储介质,其上存储有计算机程序,该计算机程序被处理器执行时实现以执行上述各实施例提供的方法,包括:On the other hand, the embodiments of the present application also provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, it is implemented to perform the methods provided in the foregoing embodiments, including:
根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;
将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一 上行信号确定至少一个第一TRP各自对应的频率补偿值,根据至少一个第一TRP各自对应的频率补偿值,确定至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one The frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of the at least one first TRP respectively used for downlink transmission is determined.
最后应说明的是:以上实施例仅用以说明本申请的技术方案,而非对其限制;尽管参照前述实施例对本申请进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (74)
- 一种频率补偿方法,其特征在于,所述频率补偿方法用于网络侧设备,包括:A frequency compensation method, characterized in that the frequency compensation method is applied to a network side device, and includes:利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;Using one or more first transmission receiving points TRP to receive the first uplink signal sent by the terminal for frequency compensation;利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;Determine the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal;根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。According to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- 根据权利要求1所述的频率补偿方法,其特征在于,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The frequency compensation method according to claim 1, wherein the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal comprises:利用所述第一上行信号确定各个第一TRP各自对应的频率补偿值。The frequency compensation value corresponding to each first TRP is determined by using the first uplink signal.
- 根据权利要求1所述的频率补偿方法,其特征在于,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The frequency compensation method according to claim 1, wherein the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal comprises:利用所述第一上行信号进行频偏估计,得到频偏估计结果;Performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result;确定用于频率补偿的参考点;Determine the reference point for frequency compensation;根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。According to the frequency offset estimation result and the reference point, a frequency compensation value corresponding to each of the at least one first TRP is determined.
- 根据权利要求3所述的频率补偿方法,其特征在于,所述利用所述第一上行信号进行频偏估计,得到频偏估计结果,包括:The frequency compensation method according to claim 3, wherein said using the first uplink signal to perform frequency offset estimation to obtain a frequency offset estimation result comprises:至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- 根据权利要求3所述的频率补偿方法,其特征在于,所述确定用于频率补偿的参考点,包括:The frequency compensation method according to claim 3, wherein said determining a reference point for frequency compensation comprises:按照设定规则或终端发送的参考点指示信息,确定所述参考点。Determine the reference point according to the set rule or the reference point indication information sent by the terminal.
- 根据权利要求5所述的频率补偿方法,其特征在于,所述设定规则包括以下任一项:The frequency compensation method according to claim 5, wherein the setting rule comprises any one of the following:所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值;The reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最小的频偏估计值;The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值。The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
- 根据权利要求5所述的频率补偿方法,其特征在于,所述参考点指示信息包括以下任一项:The frequency compensation method according to claim 5, wherein the reference point indication information includes any one of the following:所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值作为所述参考点。The reference point indication information is indication information about the first uplink signal; wherein, the network side device uses the frequency offset estimation value estimated by the first uplink signal indicated by the indication information as the reference point.
- 根据权利要求3所述的频率补偿方法,其特征在于,所述确定用于频率补偿的参考点,包括:The frequency compensation method according to claim 3, wherein said determining a reference point for frequency compensation comprises:所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;或者The at least one first TRP determines the reference point according to the frequency offset estimation result; or所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果确定所述参考点。The central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
- 根据权利要求8所述的频率补偿方法,其特征在于,所述至少一个第一TRP根据所述频偏估计结果确定所述参考点,包括:The frequency compensation method according to claim 8, wherein the at least one first TRP determining the reference point according to the frequency offset estimation result comprises:至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点。The at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
- 根据权利要求3至5任一项所述的频率补偿方法,其特征在于,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对 应的频率补偿值,包括:The frequency compensation method according to any one of claims 3 to 5, wherein the frequency compensation value corresponding to each of the at least one first TRP is determined according to the frequency offset estimation result and the reference point, include:所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者The at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point; or所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
- 根据权利要求10所述的频率补偿方法,其特征在于,所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值,包括:The frequency compensation method according to claim 10, wherein the at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point, comprising:所述至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定自身对应的频率补偿值。The at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
- 根据权利要求3所述的频率补偿方法,其特征在于,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:The frequency compensation method according to claim 3, wherein the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point comprises:第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP用于表征第一TRP中的另一部分TRP。The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP; The second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
- 根据权利要求12所述的频率补偿方法,其特征在于,所述根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率,包括:The frequency compensation method according to claim 12, wherein the determining the transmission frequency of each of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP comprises :所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;The second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself;所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。The third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- 根据权利要求1至5任一项所述的频率补偿方法,其特征在于,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The frequency compensation method according to any one of claims 1 to 5, wherein the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal comprises:所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿 值;或者The at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value; or所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
- 根据权利要求14所述的频率补偿方法,其特征在于,所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值,包括:The frequency compensation method according to claim 14, wherein the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation values, comprising:所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;所述至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。The at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
- 根据权利要求15所述的频率补偿方法,其特征在于,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;The frequency compensation method according to claim 15, wherein the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- 根据权利要求16所述的频率补偿方法,其特征在于,还包括:The frequency compensation method according to claim 16, further comprising:向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。Sending the association relationship between the at least one first TRP and the second uplink signal to the terminal.
- 根据权利要求17所述的频率补偿方法,其特征在于,还包括:所述关联关系通过以下任一消息来指示:The frequency compensation method according to claim 17, further comprising: the association relationship is indicated by any of the following messages:所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
- 一种频率补偿方法,其特征在于,所述频率补偿方法用于终端,包括:A frequency compensation method, characterized in that the frequency compensation method is applied to a terminal, and includes:根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据所述至少一个第 一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one According to the frequency compensation value corresponding to each of the first TRP, the transmission frequency of each of the at least one first TRP used for downlink transmission is determined according to the frequency compensation value corresponding to each of the at least one first TRP.
- 根据权利要求19所述的频率补偿方法,其特征在于,所述至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。The frequency compensation method according to claim 19, wherein the first uplink signals used by the at least one first TRP for frequency offset estimation are the same.
- 根据权利要求19所述的频率补偿方法,其特征在于,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。The frequency compensation method according to claim 19, wherein the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- 根据权利要求21所述的频率补偿方法,其特征在于,还包括:The frequency compensation method according to claim 21, further comprising:接收所述至少一个第一TRP与所述第二上行信号的关联关系。Receiving the association relationship between the at least one first TRP and the second uplink signal.
- 根据权利要求22所述的频率补偿方法,其特征在于,还包括:所述关联关系通过以下任一消息来指示:The frequency compensation method according to claim 22, further comprising: the association relationship is indicated by any of the following messages:所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
- 根据权利要求23所述的频率补偿方法,其特征在于,所述关联关系中指示了与所述第一上行信号相关联的下行信号;所述频率补偿方法还包括:The frequency compensation method according to claim 23, wherein the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation method further comprises:接收与所述第二上行信号相关联的下行信号;Receiving a downlink signal associated with the second uplink signal;所述将所述第一上行信号发送至网络侧设备,包括:The sending the first uplink signal to the network side device includes:基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。Based on the reception of the downlink signal, the first uplink signal is sent to the network side device.
- 一种频率补偿装置,其特征在于,所述频率补偿装置用于网络侧设备,包括:A frequency compensation device, characterized in that the frequency compensation device is used for network side equipment, and includes:接收模块,用于利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;A receiving module, configured to use one or more first transmission receiving points TRP to receive the first uplink signal for frequency compensation sent by the terminal;频率补偿确定模块,用于利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;A frequency compensation determining module, configured to use the first uplink signal to determine a frequency compensation value corresponding to each of at least one first TRP;传输频率确定模块,用于根据至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The transmission frequency determining module is configured to determine the respective transmission frequencies of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- 根据权利要求25所述的频率补偿装置,其特征在于,所述频率补偿确定模块用于,利用所述第一上行信号确定各个第一TRP各自对应的频率补 偿值。The frequency compensation device according to claim 25, wherein the frequency compensation determining module is configured to use the first uplink signal to determine the frequency compensation value corresponding to each first TRP.
- 根据权利要求25所述的频率补偿装置,其特征在于,所述频率补偿确定模块包括:The frequency compensation device according to claim 25, wherein the frequency compensation determining module comprises:频偏估计子模块,用于利用所述第一上行信号进行频偏估计,得到频偏估计结果;A frequency offset estimation sub-module, configured to use the first uplink signal to perform frequency offset estimation to obtain a frequency offset estimation result;参考点确定子模块,用于确定用于频率补偿的参考点;The reference point determination sub-module is used to determine the reference point used for frequency compensation;频率补偿值确定子模块,用于根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The frequency compensation value determining sub-module is configured to determine the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
- 根据权利要求27所述的频率补偿装置,其特征在于,所述频偏估计子模块具体用于:The frequency compensation device according to claim 27, wherein the frequency offset estimation sub-module is specifically configured to:至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- 根据权利要求27所述的频率补偿装置,其特征在于,所述参考点确定子模块具体用于:The frequency compensation device according to claim 27, wherein the reference point determination submodule is specifically configured to:按照设定规则或终端发送的参考点指示信息,确定所述参考点。Determine the reference point according to the set rule or the reference point indication information sent by the terminal.
- 根据权利要求29所述的频率补偿装置,其特征在于,所述设定规则包括以下任一项:The frequency compensation device according to claim 29, wherein the setting rule comprises any one of the following:所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值;The reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最小的频偏估计值;The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值。The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
- 根据权利要求29所述的频率补偿装置,其特征在于,所述参考点指 示信息包括以下任一项:The frequency compensation device according to claim 29, wherein the reference point indication information includes any one of the following:所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值为所述参考点。The reference point indication information is indication information about the first uplink signal; wherein, the frequency offset estimated by the network side device using the first uplink signal indicated by the indication information is the reference point.
- 根据权利要求27所述的频率补偿装置,其特征在于,所述参考点确定子模块包括:The frequency compensation device according to claim 27, wherein the reference point determination sub-module comprises:第一确定单元,用于所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;或者A first determining unit, configured to determine the reference point according to the frequency offset estimation result by the at least one first TRP; or第二确定单元,用于所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果确定所述参考点。The second determining unit is configured to determine the reference point according to the frequency offset estimation result by the central processing unit connected to the first TRP included in the network side device.
- 根据权利要求32所述的频率补偿装置,其特征在于,所述第一确定单元具体用于:The frequency compensation device according to claim 32, wherein the first determining unit is specifically configured to:至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点。The at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
- 根据权利要求27至29任一项所述的频率补偿装置,其特征在于,所述频率补偿值确定子模块包括:The frequency compensation device according to any one of claims 27 to 29, wherein the frequency compensation value determining sub-module comprises:第三确定单元,具体用于所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者The third determining unit is specifically configured to determine the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point; or第四确定单元,具体用于所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The fourth determining unit is specifically configured to determine the frequency compensation corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point by the central processing unit connected to the first TRP included in the network side device value.
- 根据权利要求34所述的频率补偿装置,其特征在于,所述第三确定单元具体用于:The frequency compensation device according to claim 34, wherein the third determining unit is specifically configured to:所述至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定 自身对应的频率补偿值。The at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
- 根据权利要求27所述的频率补偿装置,其特征在于,所述频率补偿值确定子模块具体用于:The frequency compensation device according to claim 27, wherein the frequency compensation value determining sub-module is specifically configured to:第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP用于表征第一TRP中的另一部分TRP。The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP; The second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
- 根据权利要求36所述的频率补偿装置,其特征在于,所述传输频率确定模块包括:The frequency compensation device according to claim 36, wherein the transmission frequency determination module comprises:第一频率确定子模块,用于所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;The first frequency determining submodule is configured to determine the transmission frequency used by the second TRP for downlink transmission according to the frequency compensation value determined by the second TRP;第二频率确定子模块,用于所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。The second frequency determining submodule is configured to determine the transmission frequency used by the third TRP for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- 根据权利要求25至29任一项所述的频率补偿装置,其特征在于,所述频率补偿确定模块包括:The frequency compensation device according to any one of claims 25 to 29, wherein the frequency compensation determining module comprises:第一处理子模块,用于所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值;或者A first processing sub-module, configured to determine the respective corresponding frequency compensation value by the at least one first TRP using the first uplink signal; or第二处理子模块,用于所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号,确定所述至少一个第一TRP各自对应的频率补偿值。The second processing sub-module is used for the central processing unit connected to the first TRP included in the network side device to determine the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal.
- 根据权利要求38所述的频率补偿装置,其特征在于,所述第一处理子模块具体用于:The frequency compensation device according to claim 38, wherein the first processing submodule is specifically configured to:所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;所述至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。The at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
- 根据权利要求39所述的频率补偿装置,其特征在于,所述第一上行 信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;The frequency compensation device according to claim 39, wherein the first uplink signal includes a second uplink signal for frequency offset estimation corresponding to each first TRP;所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- 根据权利要求40所述的频率补偿装置,其特征在于,还包括:The frequency compensation device according to claim 40, further comprising:关联关系发送模块,用于向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。The association relationship sending module is configured to send the association relationship between the at least one first TRP and the second uplink signal to the terminal.
- 根据权利要求41所述的频率补偿装置,其特征在于,所述关联关系通过以下任一消息来指示:The frequency compensation device according to claim 41, wherein the association relationship is indicated by any of the following messages:所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
- 一种频率补偿装置,其特征在于,所述频率补偿装置用于终端,包括:A frequency compensation device, characterized in that the frequency compensation device is used in a terminal, and includes:生成模块,用于根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;A generating module, configured to generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;发送模块,用于将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The sending module is configured to send the first uplink signal to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal The uplink signal determines the frequency compensation value corresponding to each of the at least one first TRP, and determines the respective transmission frequency of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP.
- 根据权利要求43所述的频率补偿装置,其特征在于,所述至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。The frequency compensation device according to claim 43, wherein the first uplink signals used for frequency offset estimation of the at least one first TRP are the same.
- 根据权利要求43所述的频率补偿装置,其特征在于,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。The frequency compensation device according to claim 43, wherein the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- 根据权利要求45所述的频率补偿装置,其特征在于,还包括:The frequency compensation device according to claim 45, further comprising:关联关系接收模块,用于接收所述至少一个第一TRP与所述第二上行信 号的关联关系。The association relationship receiving module is configured to receive the association relationship between the at least one first TRP and the second uplink signal.
- 根据权利要求46所述的频率补偿装置,其特征在于,还包括:所述关联关系通过以下任一消息来指示:The frequency compensation device according to claim 46, further comprising: the association relationship is indicated by any of the following messages:所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
- 根据权利要求47所述的频率补偿装置,其特征在于,所述关联关系中指示了与所述第一上行信号相关联的下行信号;所述频率补偿装置还包括:The frequency compensation device according to claim 47, wherein the association relationship indicates a downlink signal associated with the first uplink signal; the frequency compensation device further comprises:关联关系接收模块,用于接收与所述第二上行信号相关联的下行信号;An association relationship receiving module, configured to receive a downlink signal associated with the second uplink signal;所述发送模块包括:The sending module includes:发送子模块,用于基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。The sending submodule is configured to send the first uplink signal to the network side device based on the reception of the downlink signal.
- 一种网络侧设备,包括存储器、处理器及存储在存储器上并可在处理器上运行的程序,其特征在于,所述网络侧设备中包括多个射频拉远头TRP,所述处理器执行所述程序时实现如下步骤:A network side device includes a memory, a processor, and a program stored in the memory and capable of running on the processor, wherein the network side device includes a plurality of remote radio head TRPs, and the processor executes The procedure is as follows:利用一个或多个第一传输接收点TRP接收终端发送的用于频率补偿的第一上行信号;Using one or more first transmission receiving points TRP to receive the first uplink signal sent by the terminal for frequency compensation;利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值;Determine the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal;根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。According to the frequency compensation value corresponding to each of the at least one first TRP, the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- 根据权利要求49所述的网络侧设备,其特征在于,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The network side device according to claim 49, wherein the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal comprises:利用所述第一上行信号确定各个第一TRP各自对应的频率补偿值。The frequency compensation value corresponding to each first TRP is determined by using the first uplink signal.
- 根据权利要求49所述的网络侧设备,其特征在于,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The network side device according to claim 49, wherein the determining the frequency compensation value corresponding to each of the at least one first TRP by using the first uplink signal comprises:利用所述第一上行信号进行频偏估计,得到频偏估计结果;Performing frequency offset estimation using the first uplink signal to obtain a frequency offset estimation result;确定用于频率补偿的参考点;Determine the reference point for frequency compensation;根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自 对应的频率补偿值。According to the frequency offset estimation result and the reference point, a frequency compensation value corresponding to each of the at least one first TRP is determined.
- 根据权利要求51所述的网络侧设备,其特征在于,所述利用所述第一上行信号进行频偏估计,得到频偏估计结果,包括:The network side device according to claim 51, wherein said using the first uplink signal to perform frequency offset estimation to obtain a frequency offset estimation result comprises:至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值。At least one first TRP performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values.
- 根据权利要求51所述的网络侧设备,其特征在于,所述确定用于频率补偿的参考点,包括:The network side device according to claim 51, wherein said determining a reference point for frequency compensation comprises:按照设定规则或终端发送的参考点指示信息,确定所述参考点。Determine the reference point according to the set rule or the reference point indication information sent by the terminal.
- 根据权利要求53所述的网络侧设备,其特征在于,所述设定规则包括以下任一项:The network side device according to claim 53, wherein the setting rule comprises any one of the following:所述参考点是所述网络侧设备确定的指定的第一TRP对应的频偏估计值;The reference point is the frequency offset estimation value corresponding to the designated first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最大的频偏估计值;The reference point is the frequency offset estimation value with the largest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值中绝对值最小的频偏估计值;The reference point is the frequency offset estimation value with the smallest absolute value among the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最大值;The reference point is the maximum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device;所述参考点是所述网络侧设备确定的各个第一TRP对应的频偏估计值的绝对值中的最小值。The reference point is the minimum value among the absolute values of the frequency offset estimation values corresponding to each first TRP determined by the network side device.
- 根据权利要求53所述的网络侧设备,其特征在于,所述参考点指示信息包括以下任一项:The network side device according to claim 53, wherein the reference point indication information includes any one of the following:所述参考点指示信息是关于指定的第一TRP的指示信息;其中,所述指定的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about the specified first TRP; wherein the frequency offset estimation value corresponding to the specified first TRP is the reference point;所述参考点指示信息是关于下行信号的指示信息;其中,与所述下行信号的指示信息相关联的第一TRP对应的频偏估计值为所述参考点;The reference point indication information is indication information about a downlink signal; wherein the frequency offset estimation value corresponding to the first TRP associated with the indication information of the downlink signal is the reference point;所述参考点指示信息是关于所述第一上行信号的指示信息;其中,网络侧设备使用该指示信息指示的第一上行信号估计出的频偏估计值作为所述参 考点。The reference point indication information is indication information about the first uplink signal; wherein, the network side device uses the frequency offset estimation value estimated by the first uplink signal indicated by the indication information as the reference point.
- 根据权利要求51所述的网络侧设备,其特征在于,所述确定用于频率补偿的参考点,包括:The network side device according to claim 51, wherein said determining a reference point for frequency compensation comprises:所述至少一个第一TRP根据所述频偏估计结果确定所述参考点;或者The at least one first TRP determines the reference point according to the frequency offset estimation result; or所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果确定所述参考点。The central processing unit connected to the first TRP included in the network side device determines the reference point according to the frequency offset estimation result.
- 根据权利要求56所述的网络侧设备,其特征在于,所述至少一个第一TRP根据所述频偏估计结果确定所述参考点,包括:The network side device according to claim 56, wherein the at least one first TRP determining the reference point according to the frequency offset estimation result comprises:至少一个第一TRP对各自对应的频偏估计值进行信息交互,并根据信息交互的信息确定自身对应的用于确定用于频率补偿的参考点。The at least one first TRP performs information exchange on the respective frequency offset estimation values, and determines its own corresponding reference point for determining the frequency compensation according to the information exchanged.
- 根据权利要求51至53任一项所述的网络侧设备,其特征在于,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:The network side device according to any one of claims 51 to 53, wherein the frequency compensation value corresponding to each of the at least one first TRP is determined according to the frequency offset estimation result and the reference point, include:所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值;或者The at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point; or所述网络侧设备中包括的连接第一TRP的中央处理单元根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device determines the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point.
- 根据权利要求58所述的网络侧设备,其特征在于,所述至少一个第一TRP根据所述频偏估计结果和所述参考点,确定各自对应的频率补偿值,包括:The network-side device according to claim 58, wherein the at least one first TRP determines the respective corresponding frequency compensation value according to the frequency offset estimation result and the reference point, comprising:所述至少一个第一TRP根据自身对应的频偏估计值和所述参考点,确定自身对应的频率补偿值。The at least one first TRP determines its corresponding frequency compensation value according to its corresponding frequency offset estimation value and the reference point.
- 根据权利要求51所述的网络侧设备,其特征在于,所述根据所述频偏估计结果和所述参考点,确定所述至少一个第一TRP各自对应的频率补偿值,包括:The network-side device according to claim 51, wherein the determining the frequency compensation value corresponding to each of the at least one first TRP according to the frequency offset estimation result and the reference point comprises:第二TRP根据自身对应的频偏估计值,确定自身对应的频率补偿值,并将确定的所述频率补偿值或所述第二TRP对应的频偏估计值发送给第三TRP;其中,第二TRP用于表征第一TRP中的一部分TRP,所述第三TRP 用于表征第一TRP中的另一部分TRP。The second TRP determines the frequency compensation value corresponding to itself according to the frequency offset estimation value corresponding to itself, and sends the determined frequency compensation value or the frequency offset estimation value corresponding to the second TRP to the third TRP; The second TRP is used to characterize a part of the TRP in the first TRP, and the third TRP is used to characterize another part of the TRP in the first TRP.
- 根据权利要求60所述的网络侧设备,其特征在于,所述根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率,包括:The network-side device according to claim 60, wherein the determining the transmission frequency of each of the at least one first TRP for downlink transmission according to the frequency compensation value corresponding to each of the at least one first TRP comprises :所述第二TRP根据自身确定的所述频率补偿值,确定自身用于下行传输的传输频率;The second TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by itself;所述第三TRP根据所述第二TRP确定的所述频率补偿值或所述第二TRP对应的频偏估计值,确定自身用于下行传输的传输频率。The third TRP determines its own transmission frequency for downlink transmission according to the frequency compensation value determined by the second TRP or the frequency offset estimation value corresponding to the second TRP.
- 根据权利要求49至53任一项所述的网络侧设备,其特征在于,所述利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,包括:The network-side device according to any one of claims 49 to 53, wherein the determining the frequency compensation value corresponding to each of at least one first TRP by using the first uplink signal comprises:所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值;或者The at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation value; or所述网络侧设备中包括的连接第一TRP的中央处理单元利用所述第一上行信号,确定所述至少一个第一TRP各自对应的频率补偿值。The central processing unit connected to the first TRP included in the network side device uses the first uplink signal to determine the frequency compensation value corresponding to each of the at least one first TRP.
- 根据权利要求62所述的网络侧设备,其特征在于,所述至少一个第一TRP利用所述第一上行信号确定各自对应的频率补偿值,包括:The network-side device according to claim 62, wherein the at least one first TRP uses the first uplink signal to determine the respective corresponding frequency compensation values, comprising:所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值;The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values;所述至少一个第一TRP根据各自对应的频偏估计值,确定各自对应的频率补偿值。The at least one first TRP determines the respective corresponding frequency compensation value according to the respective corresponding frequency offset estimation value.
- 根据权利要求63所述的网络侧设备,其特征在于,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号;The network-side device according to claim 63, wherein the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP;所述至少一个第一TRP对所述第一上行信号分别进行频偏估计,得到各自对应的频偏估计值,包括:The at least one first TRP respectively performs frequency offset estimation on the first uplink signal to obtain respective frequency offset estimation values, including:所述至少一个第一TRP对各自对应的所述第二上行信号分别进行频偏估计,得到各自对应的频偏估计值。The at least one first TRP performs frequency offset estimation on the respective corresponding second uplink signals to obtain respective frequency offset estimation values.
- 根据权利要求64所述的网络侧设备,其特征在于,还包括:The network side device according to claim 64, further comprising:向终端发送所述至少一个第一TRP与所述第二上行信号的关联关系。Sending the association relationship between the at least one first TRP and the second uplink signal to the terminal.
- 根据权利要求65所述的网络侧设备,其特征在于,还包括:所述关联关系通过以下任一消息来指示:The network side device according to claim 65, further comprising: the association relationship is indicated by any of the following messages:所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
- 一种终端,包括存储器、处理器及存储在存储器上并可在处理器上运行的程序,其特征在于,所述处理器执行所述程序时实现如下步骤:A terminal including a memory, a processor, and a program stored on the memory and capable of running on the processor, wherein the processor implements the following steps when the program is executed by the processor:根据网络侧设备的配置或指示,生成用于频率补偿的第一上行信号;Generate the first uplink signal for frequency compensation according to the configuration or instruction of the network side device;将所述第一上行信号发送至网络侧设备,以使所述网络侧设备利用一个或多个第一传输接收点TRP接收终端发送的第一上行信号,利用所述第一上行信号确定至少一个第一TRP各自对应的频率补偿值,根据所述至少一个第一TRP各自对应的频率补偿值,确定所述至少一个第一TRP各自用于下行传输的传输频率。The first uplink signal is sent to the network side device, so that the network side device uses one or more first transmission reception points TRP to receive the first uplink signal sent by the terminal, and uses the first uplink signal to determine at least one The frequency compensation value corresponding to each of the first TRPs is determined according to the frequency compensation value corresponding to each of the at least one first TRP, and the transmission frequency of each of the at least one first TRP used for downlink transmission is determined.
- 根据权利要求67所述的终端,其特征在于,所述至少一个第一TRP用于进行频偏估计的所述第一上行信号是相同的。The terminal according to claim 67, wherein the first uplink signals used by the at least one first TRP for frequency offset estimation are the same.
- 根据权利要求67所述的终端,其特征在于,所述第一上行信号中包括各个第一TRP各自对应的用于进行频偏估计的第二上行信号。The terminal according to claim 67, wherein the first uplink signal includes a second uplink signal used for frequency offset estimation corresponding to each first TRP.
- 根据权利要求69所述的终端,其特征在于,还包括:The terminal according to claim 69, further comprising:接收所述至少一个第一TRP与所述第二上行信号的关联关系。Receiving the association relationship between the at least one first TRP and the second uplink signal.
- 根据权利要求70所述的终端,其特征在于,还包括:所述关联关系通过以下任一消息来指示:The terminal according to claim 70, further comprising: the association relationship is indicated by any of the following messages:所述第二上行信号的空间关系信息;Spatial relationship information of the second uplink signal;所述第二上行信号的传输配置指示TCI状态;The transmission configuration of the second uplink signal indicates the TCI state;所述第二上行信号准共址QCL指示信息。The second uplink signal quasi co-located QCL indication information.
- 根据权利要求71所述的终端,其特征在于,所述关联关系中指示了与所述第一上行信号相关联的下行信号;所述频率补偿方法还包括:The terminal according to claim 71, wherein the association relationship indicates a downlink signal associated with the first uplink signal; and the frequency compensation method further comprises:接收与所述第二上行信号相关联的下行信号;Receiving a downlink signal associated with the second uplink signal;所述将所述第一上行信号发送至网络侧设备,包括:The sending the first uplink signal to the network side device includes:基于所述下行信号的接收,将所述第一上行信号发送至所述网络侧设备。Based on the reception of the downlink signal, the first uplink signal is sent to the network side device.
- 一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现如权利要求1至18任一项所述的频率补偿方法的步骤。A non-transitory computer-readable storage medium with a computer program stored thereon, wherein the computer program implements the steps of the frequency compensation method according to any one of claims 1 to 18 when the computer program is executed by a processor.
- 一种非暂态计算机可读存储介质,其上存储有计算机程序,其特征在于,该计算机程序被处理器执行时实现如权利要求19至24任一项所述的频率补偿方法的步骤。A non-transitory computer-readable storage medium with a computer program stored thereon, wherein the computer program implements the steps of the frequency compensation method according to any one of claims 19 to 24 when the computer program is executed by a processor.
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