WO2021197424A1 - 信息配置及确定方法、网络设备和终端设备 - Google Patents
信息配置及确定方法、网络设备和终端设备 Download PDFInfo
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- WO2021197424A1 WO2021197424A1 PCT/CN2021/084921 CN2021084921W WO2021197424A1 WO 2021197424 A1 WO2021197424 A1 WO 2021197424A1 CN 2021084921 W CN2021084921 W CN 2021084921W WO 2021197424 A1 WO2021197424 A1 WO 2021197424A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- the present invention claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 202010260696.7, and the invention title is "information configuration and determination method, network equipment and terminal equipment” on April 3, 2020, and in April 2020
- the priority of the Chinese patent application filed with the Chinese Patent Office on the 09th with the application number 202010275976.5 and the invention title is "information configuration and determination method, network equipment and terminal equipment", the entire content of the above application is incorporated into the present invention by reference.
- the present invention relates to the field of communications, in particular to an information configuration and determination method, network equipment and terminal equipment.
- the Long Term Evolution (LTE) system and new In the New Radio (NR) system the Single Frequency Network (SFN) transmission method can be used for network deployment, that is, simultaneous transmission in multiple cells on the same frequency at the same time to save frequency resources and increase spectrum Utilization rate.
- UE User Equipment
- NR New Radio
- the NR system introduces a more flexible tracking reference signal (Tracking Reference Signal, TRS) and a series of related quasi co-location (QCL) relationships.
- TRS Tracking Reference Signal
- QCL quasi co-location
- DMRS Demodulation Reference Signal
- the terminal device needs to perform spatial relationship information switching, transmission configuration instruction switching, and crystal frequency switching, etc., and the length of time for the aforementioned related switching depends on the terminal device's own capabilities.
- a time protection mechanism that adapts to the relevant handover is also needed.
- the technical problem solved by the embodiment of the present invention is at least one of the following: how to enable the DMRS to refer to the correct QCL source when performing channel estimation and data demodulation; how to enable the terminal device to have sufficient time margin when performing related handover.
- an embodiment of the present invention provides an information configuration method, which is applied to a network device, and the method includes:
- the target configuration information includes at least one of target standard co-location reference information and a time margin n; wherein, the target QCL reference information corresponds to a demodulation reference signal resource, and the target QCL reference information uses For the terminal device to perform channel estimation and data demodulation; the time margin n is used for the terminal device to perform target switching, where the target switching includes crystal frequency switching, spatial relation information (SpatialRelationInfo) switching, and TCI state At least one of handover and TRP handover.
- the target configuration information includes at least one of target standard co-location reference information and a time margin n
- the target QCL reference information corresponds to a demodulation reference signal resource
- the target QCL reference information uses
- the time margin n is used for the terminal device to perform target switching, where the target switching includes crystal frequency switching, spatial relation information (SpatialRelationInfo) switching, and TCI state At least one of handover and TRP handover.
- SpatialRelationInfo spatial relation information
- an embodiment of the present invention provides a network device, including:
- the configuration module is configured to configure target configuration information, where the target configuration information includes at least one of target standard co-location reference information and a time margin n; wherein, the target QCL reference information corresponds to a demodulation reference signal resource, and The target QCL reference information is used for the terminal device to perform channel estimation and data demodulation; the time margin n is used for the terminal device to perform target switching, where the target switching includes crystal oscillator frequency switching, spatial relationship information switching, At least one of transmission configuration indicator state (Transmission Configuration Indicator state, TCI state) switching and transmission reception point (Transmission Reception Point, TRP) switching.
- TCI state Transmission Configuration Indicator state
- TRP Transmission Reception Point
- an embodiment of the present invention provides a network device, including: a memory, a processor, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor When realizing the steps of the method as described in the first aspect.
- an embodiment of the present invention provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented .
- an embodiment of the present invention provides an information determination method, which is applied to a terminal device, and the method includes:
- Target configuration information configured by a network device, where the target configuration information includes at least one of target standard co-location reference information and a time margin n, wherein the target QCL reference information corresponds to a demodulation reference signal resource; Target QCL reference information for channel estimation and data demodulation; target switching is performed according to the time margin n, where the target switching includes crystal frequency switching, spatial relationship information switching, transmission configuration indication state switching, and transmission receiving point switching. At least one of them.
- an embodiment of the present invention provides a terminal device, including:
- the receiving module is configured to receive target configuration information configured by a network device, where the target configuration information includes at least one of target standard co-location reference information and a time margin n, wherein the target QCL reference information and demodulation reference signal resource Corresponding; a first processing module for channel estimation and data demodulation according to the target QCL reference information; a second processing module for target switching according to the time margin n, wherein the target switching It includes at least one of crystal frequency switching, spatial relationship information switching, transmission configuration indication state switching, and transmission receiving point switching.
- an embodiment of the present invention provides a terminal device, including: a memory, a processor, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor When realizing the steps of the method as described in the fifth aspect.
- an embodiment of the present invention provides a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method described in the fifth aspect are implemented .
- target configuration information may be configured, and the target configuration information includes at least one of target standard co-location reference information and time margin n.
- the terminal device can refer to the correct QCL information when performing channel estimation and data demodulation based on the DMRS resource.
- the terminal device can perform target switching based on the time margin n, that is, provide a sufficient amount of time margin for the terminal device to perform target switching, so as to ensure the data solution of the terminal device.
- Adjustment capability wherein the target switching includes at least one of crystal frequency switching, spatial relationship information switching, transmission configuration indication state switching, and transmission receiving point switching. In this way, the communication efficiency of the system can be improved.
- Figure 1 is a schematic diagram of network deployment based on SFN transmission in an embodiment of the present invention
- FIG. 2 is a schematic flowchart of an information configuration method in an embodiment of the present invention.
- Figure 3 is a schematic diagram of a frequency offset pre-compensation process in an embodiment of the present invention.
- Figure 4 is a schematic diagram of another frequency offset pre-compensation process in an embodiment of the present invention.
- FIG. 5 is a schematic diagram of another frequency offset pre-compensation process in an embodiment of the present invention.
- FIG. 6 is a schematic flowchart of a method for determining information in an embodiment of the present invention.
- Figure 7 is a schematic structural diagram of a network device in an embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of a terminal device in an embodiment of the present invention.
- FIG. 9 is a schematic structural diagram of a second type of network device in an embodiment of the present invention.
- Fig. 10 is a schematic structural diagram of a second type of terminal device in an embodiment of the present invention.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- GSM Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE-A Long Term Evolution/Enhanced Long Term Evolution
- NR NR
- User-side UE can also be called terminal equipment (Mobile Terminal), mobile user equipment, etc., and can communicate with one or more core networks via a radio access network (RAN), and user equipment can be terminal equipment.
- RAN radio access network
- user equipment can be terminal equipment.
- they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, which exchange languages and/or wireless access networks. Or data.
- Network equipment also called a base station
- BTS Base Transceiver Station
- NodeB base station
- evolutional Node B evolutional Node B
- LTE Long Term Evolution
- ENB e-NodeB
- gNB 5G base station
- multiple remote radio heads when the SFN transmission mode is used for network deployment, multiple remote radio heads (RRH) will be connected to the same baseband processing unit (Building Baseband Unit, BBU), so that the UE In the process of high-speed movement, there is no need to switch network equipment frequently.
- BBU Building Baseband Unit
- multiple RRHs, RRH1 and RRH2 can send the same physical downlink shared channel (PDSCH) data to the UE, and the UE can move between RRH1 and RRH2.
- PDSCH physical downlink shared channel
- an embodiment of the present invention provides an information configuration method, which is executed by a network device, and the method includes the following process steps:
- Step 101 Configure target configuration information, where the target configuration information includes at least one of target QCL reference information and time margin n.
- the above-mentioned target QCL reference information corresponds to the DMRS resource
- the target QCL reference information is used for terminal equipment to perform channel estimation and data demodulation
- the time margin n is used for terminal equipment target switching, where target switching includes crystal oscillator frequency switching, At least one of spatial relationship information switching, transmission configuration indication state switching, and transmission receiving point switching.
- target configuration information may be configured, and the target configuration information includes at least one of target standard co-location reference information and time margin n.
- the terminal device can refer to the correct QCL information when performing channel estimation and data demodulation based on the DMRS resource.
- the terminal device can perform target switching based on the time margin n, that is, provide a sufficient amount of time margin for the terminal device to perform target switching, so as to ensure the data solution of the terminal device.
- Adjustment capability wherein the target switching includes at least one of crystal frequency switching, spatial relationship information switching, transmission configuration indication state switching, and transmission receiving point switching. In this way, the communication efficiency of the system can be improved.
- the above-mentioned target configuration information may be used by the terminal device in the first process, where the first process is that the terminal device moves from one of the first RRH and the second RRH in a network deployed in SFN transmission mode.
- the process to another. For example, the process of moving from one of RRH1 and RRH2 to the other in FIG. 1.
- the target QCL reference information when the target configuration information includes target standard co-location reference information, includes the target QCL reference source and the target QCL corresponding to the target QCL reference source. parameter. That is to say, through the target QCL reference information, the DMRS resource can refer to the correct QCL source and its corresponding target QCL parameters when performing channel estimation and data demodulation.
- the foregoing target QCL reference information satisfies at least one of the following conditions:
- the foregoing target QCL reference source is different from the first QCL reference source, and the first QCL reference source includes a first TRS resource and a second TRS resource.
- the first TRS resource may be sent by the first RRH
- the second TRS resource may be sent by the second RRH.
- the foregoing target QCL parameters are different from the first QCL parameters, and the first QCL parameters are all QCL parameters in the QCL type corresponding to the first TRS resource and all QCL parameters in the QCL type corresponding to the second TRS resource.
- the target QCL reference source of the DMRS is configured as a QCL source different from the first TRS resource and the second TRS resource in the related technology, and/or the target QCL parameter configuration corresponding to the target QCL reference source is the same as the DMRS in the related technology
- the QCL parameters of the QCL source referenced by the resource are different, the situation of Doppler frequency offset value mismatch can be avoided.
- the specific content contained in the target QCL reference information including the target QCL reference source and its corresponding target QCL parameters can be configured into a variety of different solutions, including but It is not limited to the situation described in the following specific embodiments:
- the above-mentioned target QCL reference information is indicated to the terminal device based on code points in the first Downlink Control Information (DCI) signaling, and the code points include the first TCI state and the second TCI. state.
- DCI Downlink Control Information
- the QCL reference source in the first TCI state is the first TRS resource, and the QCL type in the first TCI state is QCL TypeA; the QCL reference source in the second TCI state is the second TRS resource, and the second TCI state
- the QCL type in is QCL TypeA or the first QCL type; wherein, the QCL parameter in the first QCL type is the delay extension.
- the target QCL reference information of the DMRS port can be indicated by the DCI as two TCI states included in the code points in the TCI domain, that is, the target QCL reference source of the DMRS port is configured as the first TRS resource And the second TRS resource.
- the target QCL parameter corresponding to the target QCL reference source may jointly refer to the QCL parameter in the QCL TypeA of the first TRS resource and the QCL parameter in the QCL TypeA of the second TRS resource.
- the QCL parameter corresponding to the target QCL type may jointly refer to the QCL parameter in the QCL TypeA of the first TRS resource and the QCL parameter in the newly defined first QCL type for immediate extension.
- the above-mentioned QCL TypeA represents the QCL type, and the QCL parameters in QCL TypeA are Doppler frequency offset, Doppler spread, average delay, and delay spread.
- the target QCL reference source includes: the main QCL reference source And non-primary QCL reference sources.
- the main QCL reference source is one of the first TRS resource and the second TRS resource
- the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource
- the target QCL parameters include the main QCL reference source All QCL parameters in the corresponding QCL Type A and some QCL parameters in the QCL Type A corresponding to the non-primary QCL reference source, among which some QCL parameters are delay extensions.
- the target QCL reference source distinguishes between the first TRS resource and the second TRS resource, and the target QCL parameter corresponding to the target QCL reference source is different from the first QCL parameter.
- the UE will jointly refer to the first TRS.
- the delay spread of both the resource and the second TRS resource performs channel estimation and data demodulation.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, which is explicitly indicated to the terminal device by the network device through the first signaling; wherein, the first signaling Including radio resource control signaling, Medium Access Control Control Element (MAC CE) signaling or DCI signaling.
- the first signaling Including radio resource control signaling, Medium Access Control Control Element (MAC CE) signaling or DCI signaling.
- MAC CE Medium Access Control Element
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, and the network device implicitly indicates to the terminal device through the first sequence, and the first sequence is the first sequence.
- the sequence of the TCI state and the second TCI state in the code point, and the main QCL reference source is the TRS resource in the TCI state that is arranged before the code point.
- the crystal oscillator frequency of the network device is fc
- the crystal oscillator frequency of the UE is fc+fo.
- it can include the following:
- Step 201 Frequency offset estimation based on synchronization signal block (Synchronization Signal and PBCH block, SSB) resources.
- synchronization signal block Synchronization Signal and PBCH block, SSB
- the network equipment configures two resource sets SSB1 and SSB2, which are sent to the UE from RRH1 and RRH2, respectively.
- the UE estimates the Doppler frequency offset as ⁇ f1-fo and ⁇ f2-fo according to the received SSB1 and SSB2, respectively. Further, the UE may decide to adjust the crystal oscillator frequency according to the frequency offset estimation result corresponding to SSB1 or SSB2 according to the signaling instructions sent in advance by the network device.
- the network device instructs to adjust the crystal frequency according to the frequency offset estimation result ⁇ f1 corresponding to SSB1, then adjust the crystal frequency to fc+ ⁇ f1; and if the network device instructs to adjust the crystal frequency according to the frequency offset estimation result ⁇ f2 corresponding to SSB2, then the crystal oscillator frequency is adjusted The frequency is adjusted to fc+ ⁇ f2.
- a specific example is described by taking the network device instructing to adjust the frequency of the crystal oscillator according to the frequency offset estimation result ⁇ f1 corresponding to SSB1 as an example.
- Step 203 Frequency offset estimation based on TRS resources.
- the network equipment configures two TRS resource sets TRS1 and TRS2, which are sent to the UE from RRH1 and RRH2, respectively.
- the UE estimates the Doppler frequency offset as 0 and ⁇ f2- ⁇ f1 according to the received TRS1 and TRS2, respectively. Further, the UE may decide to adjust the crystal oscillator frequency according to the frequency offset result corresponding to TRS1 or TRS2 according to the signaling instructions sent in advance by the network device.
- the network device instructs to adjust the crystal frequency according to the frequency offset estimation result 0 corresponding to TRS1, adjust the crystal frequency to fc+ ⁇ f1; and if the network device instructs to adjust the crystal frequency according to the frequency offset estimation result ⁇ f2- ⁇ f1 corresponding to TRS2 , Then adjust the crystal frequency to fc+ ⁇ f2.
- the description is specifically made by taking the network device instructing to adjust the crystal frequency according to the frequency offset estimation result 0 corresponding to TRS1 as an example.
- Step 205 Estimating the frequency offset of the uplink network equipment.
- the UE sends an uplink sounding reference signal (Sounding Reference Signal, SRS) with the crystal frequency fc+ ⁇ f1, and the network equipment estimates the Doppler frequency offsets ⁇ f1 and ⁇ f2 on RRH1 and RRH2 according to the SRS.
- SRS Sounding Reference Signal
- Step 207 After the network device performs frequency offset pre-compensation, the same PDSCH is sent from RRH1 and RRH2.
- the DMRS When the UE receives the PDSCH, the DMRS performs channel estimation according to the TCI state pre-indicated by the RRC, MAC CE, and DCI fields.
- the specific instructions are as follows:
- the RRC configures M TCI states, from which MACCE activates N TCI states (N ⁇ 8), and DCI indicates one of the N TCI states.
- the QCL reference information of the two TCI states represented by the code points in the DCI field at this time is: the QCL reference source of the DMRS in the first TCI state is TRS1, and the QCL type is QCL TypeA; the second TCI state is the DMRS reference information.
- the QCL reference source is TRS2, and the QCL type is QCL TypeA.
- signaling indicates that the primary QCL reference source is TRS1 in the first TCI state. Or according to the order of the TCI state in the code points ⁇ TCI state1, TCI state2 ⁇ , implicitly indicating that the TCI state1 in the code point is the main QCL reference source. Since the UE can learn that it is in the high-speed rail SFN network according to high-level signaling, it defaults to refer to the delay extension of the non-primary QCL reference source TRS2 at this time. That is, the DMRS refers to the average delay, delay spread, Doppler frequency offset, and Doppler spread of TRS1, but only refers to the delay spread of TRS2 (part of QCL parameters in QCL Type A). When UE performs DMRS channel estimation, it needs to combine the time delay information of TRS1 and TRS2.
- the target QCL reference source when the QCL type in the first TCI state is QCL TypeA, and the QCL type in the second TCI state is the first QCL type, the target QCL reference source includes the first QCL type.
- a TRS resource and a second TRS resource; the aforementioned target QCL parameters include: all QCL parameters in the QCL TypeA corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.
- the target QCL parameter corresponding to the target QCL reference source is different from the first QCL parameter.
- the UE will jointly refer to the delay spread of both the first TRS resource and the second TRS resource for channel estimation and data demodulation.
- steps 301, 303, and 305 are basically the same as those of step 201, step 203, and step 205 shown in FIG. 3. I won't repeat them here. The difference lies in the following:
- Step 307 After the network device performs frequency offset pre-compensation, the same PDSCH is sent from RRH1 and RRH2.
- the DMRS When the UE receives the PDSCH, the DMRS performs channel estimation according to the TCI state pre-indicated by the RRC, MAC CE, and DCI fields.
- the specific instructions are as follows:
- the RRC configures M TCI states, from which MAC-CE activates N TCI states (N ⁇ 8), and DCI indicates one of the N TCI states.
- the QCL reference information corresponding to the two TCI states represented by the code points in the DCI domain at this time is: the QCL reference source of the DMRS in the first TCI state is TRS1, and the QCL type is QCL TypeA ⁇ Doppler frequency offset, Doppler extension, average delay, delay extension ⁇ ; the QCL reference source of the DMRS in the second TCI state is TRS2, and the QCL type is QCL TypeE ⁇ delay extension ⁇ (that is, the first QCL type).
- the DMRS refers to the average delay, delay spread, Doppler frequency offset and Doppler spread of TRS1, and refers to the delay spread of TRS2.
- UE performs DMRS channel estimation, it needs to combine the time delay information of TRS1 and TRS2.
- the above-mentioned target QCL reference resource is the third TRS resource
- the third TRS resource is sent after frequency offset precompensation
- the QCL reference source of the third TRS resource is the first TRS resource or the second TRS Resources
- the QCL type referenced by the third TRS resource is QCL TypeC or the second QCL type
- the first TRS resource, the second TRS resource, and the third TRS resource are all periodic TRS resources.
- the second QCL type is any QCL type except QCL TypeA, QCL TypeB, QCL TypeC, and QCL TypeD; the foregoing target QCL parameters are all QCL parameters in the foregoing QCL TypeA.
- the above-mentioned QCL TypeB, QCL TypeC, and QCL TypeD all indicate the QCL type
- the QCL parameters in QCL TypeB are Doppler frequency offset and Doppler spread
- the QCL parameters in QCL TypeC are Doppler frequency offset and average delay.
- QCL parameters in QCL TypeD are spatial receiving parameters.
- the target QCL reference source is different from the first QCL reference source.
- the periodic TRS resource that is sent between the frequency offset precompensation and the transmission of the same PDSCH that is, the third TRS resource
- the third TRS resource refers to another periodic TRS resource (that is, the first TRS resource or the second TRS resource) by QCL TypeC.
- the third TRS resource may be sent after the frequency offset precompensation is performed by the first RRH and the second RRH, and before the same physical downlink shared channel PDSCH is sent through the first RRH and the second RRH.
- step 401, step 403, and step 405 included are basically the same as the contents of step 201, step 203, and step 205 shown in FIG. 3. I won't repeat them here. The difference lies in the following:
- Step 407 After the network device performs frequency offset pre-compensation, the same TRS3 is sent from RRH1 and RRH2.
- the UE receives TRS3, according to the TCI state pre-indicated by the RRC, MAC CE, and DCI fields, it uses TRS1 as the QCL reference, and the QCL type is QCL TypeC to adjust the timing and frequency offset, and estimate the new timing and time. Extension spread, Doppler frequency deviation and Doppler spread.
- Step 409 After performing frequency offset pre-compensation, the network device sends the same PDSCH from RRH1 and RRH2.
- the DMRS When the UE receives the PDSCH, the DMRS performs channel estimation according to the TCI state pre-indicated by the RRC, MAC CE, and DCI fields.
- the TCI state specifically indicated by the DCI is: the QCL reference source of the DMRS is TRS3, and the QCL type is QCL TypeA.
- the target QCL reference source of the DMRS is configured as a specific DMRS resource, and the target QCL parameters are all QCL parameters in QCL TypeA.
- the indication information of the specific DMRS resource is configured through second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling.
- the target QCL reference source is different from the first QCL reference source, and may be a specific DMRS resource designated in advance.
- the target QCL reference source is a specific DMRS resource.
- the target QCL reference source is different from the first QCL reference source.
- the QCL reference source configured for the DMRS resource is itself, that is, they are all pre-designated specific DMRS resources.
- the QCL reference source configured for the DMRS resource is a pre-indication Specific DMRS resources.
- the target QCL reference source is the specific DMRS resource sent last time before sending the DMRS resource.
- the QCL reference source configured for the DMRS resource is a pre-indication Specific DMRS resources.
- the above-mentioned target switching can be indicated to the terminal device in different ways, including but not limited to the following specific embodiments:
- the above-mentioned time margin n is used for the terminal device to perform target switching within the switching period after receiving the target signaling.
- the switching period is the period corresponding to time T to time (T+n), and time T is used for the terminal device to send a positive confirmation ACK message corresponding to the target signaling.
- the target switching is agreed by the protocol to be completed after the time (T+n), and no signal transmission is performed within the time margin n; where the target signaling includes MAC CE signaling or physical layer control signaling.
- time margin n, time T, and time (T+n) is milliseconds.
- target switching is explicitly indicated to the terminal device by the network device through target signaling.
- an additional time margin of n milliseconds is provided to ensure that the UE has sufficient time margin to complete the corresponding target switching, thereby ensuring the data demodulation capability of the terminal device.
- the target switch is the aforementioned SpatialRelationInfo switch.
- the unit of time (T+3+n1) is milliseconds.
- time margin n may be based on the time margin of 3 milliseconds provided in the related art, and further provide an additional time margin of n1 milliseconds.
- the above-mentioned first SpatialRelationInfo switching signaling is used to instruct the reference signal set associated with the SpatialRelationInfo to switch from the first set to the second set.
- the first set and the second set are two reference signal sets associated with SpatialRelationInfo.
- the first set and the second set are two different reference signal sets, and the first set and the second set are pre-configured by the network device or agreed by a protocol.
- the target switch is the aforementioned TCI state switch.
- time margin n may be based on the time margin of 3 milliseconds provided in the related art, and further provide an additional time margin of n1 milliseconds.
- the above-mentioned first TCI state switching signaling is used to instruct the reference signal set associated with the TCI state to switch from the third set to the fourth set.
- the third set and the fourth set are two reference signal sets associated with the TCI state.
- the third set and the fourth set are two different reference signal sets, and the third set and the fourth set are pre-configured by the network device or agreed upon by the protocol.
- the above-mentioned first TCI state switching signaling is used to instruct specific control resource set (Control Resource Set, CORESET) TCI state switching, and the specific CORESET TCI state switching includes CORESET0TCI state switching .
- the specific CORESET TCI state switch may also include a certain specified CORESET TCI state switch other than the CORESET 0TCI state switch.
- the above-mentioned first TCI state switching signaling may also be used to indicate the PDSCH active TCI state switching.
- the PDSCH active TCI state is the TCI state used to receive the PDSCH.
- the target signaling in the foregoing target signaling is DCI signaling (ie, physical layer control signaling), and the foregoing target signaling is the second TCI state switching signaling and the second SpatialRelationInfo switching signaling
- the target switching may correspond to at least one of TCI state switching and SpatialRelationInfo switching.
- the above-mentioned second TCI state switching signaling is used to switch the CORESET TCI state or the PDSCH TCI state.
- the above-mentioned target signaling is specifically agreed signaling; wherein, the specifically agreed signaling is newly defined signaling in the high-speed rail mode and includes one of the following: TRP handover signaling, RRH Handover signaling, TRS handover signaling, SSB handover signaling, third TCI state handover signaling, and third SpatialRelationInfo handover signaling.
- the target switching can also be instructed through specially agreed signaling.
- the above-mentioned target switching is implicitly indicated by the network device to the terminal device; wherein, no signal transmission is performed within the above-mentioned time margin n.
- n time margin
- signaling overhead can be saved.
- an additional time margin of n milliseconds is provided to ensure that the UE has a sufficient time margin to complete the corresponding target switching, thereby ensuring the data demodulation capability of the terminal device.
- the manner for determining the time margin n includes one of the following:
- the time margin n is configured by the network equipment. In other words, the time margin n is directly configured by the network device.
- the time margin n is reported by the terminal device. That is, the network device may configure a time margin reported by the terminal device based on its own capabilities as the time margin n, so as to meet the time requirement of the terminal device for target switching.
- the network device configures the time margin n based on the time margin n3 reported by the terminal device.
- the network device can directly configure the time margin n3 as the final time margin n, or reconfigure a new time margin n4, and configure the time margin n4 as the final time margin n, where the time margin n4 may be greater than the time margin n to meet the time requirement of the terminal device for target switching.
- the time margin n may be equal to the time margin n3 or not equal to the time margin n3.
- the network device configures the time margin n based on the time margin threshold value reported by the terminal device.
- the network device receives the time margin threshold value reported by the terminal device based on its own capabilities, it can select an appropriate time margin as the final time margin n based on the time margin threshold value. Meet the time requirements of terminal equipment for target switching.
- the time margin n may be equal to or different from the time margin threshold.
- the information configuration method of the embodiment of the present invention can provide a new QCL reference relationship and type, as well as related signaling indications, to solve the frequency offset pre-compensation scheme for the network side frequency offset pre-compensation scheme of the high-speed rail scene.
- the QCL reference information mismatch problem ensures the data demodulation performance of the terminal equipment.
- an additional time margin of n milliseconds is introduced, which is to introduce sufficient time margin for the crystal oscillator adjustment of the terminal device to ensure that the terminal device is before sending and receiving signals. Complete the adjustment of the crystal oscillator frequency to ensure the data demodulation performance of the terminal equipment.
- an embodiment of the present invention provides a method for determining information, which is executed by a terminal device, and the method includes the following process steps:
- Step 501 Receive target configuration information configured by a network device, where the target configuration information includes at least one of target QCL reference information and a time margin n, where the target QCL reference information corresponds to a DMRS resource.
- Step 503 Perform channel estimation and data demodulation according to the target QCL reference information.
- Step 505 Perform target switching according to the time margin n, where the target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and TRP switching.
- At least one of the target QCL reference information and the time margin n can be acquired according to the target configuration information configured by the network device.
- the correct QCL information can be referred to when performing channel estimation and data demodulation based on the target QCL reference information and the DMRS resource.
- the target switching can be performed based on the sufficient time margin additionally configured by the network device, thereby ensuring the data demodulation capability of the terminal device.
- the target switching includes the crystal oscillator frequency. At least one of switching, SpatialRelationInfo switching, TCI state switching, and TRP switching. In this way, the communication efficiency of the system can be improved.
- the above-mentioned target configuration information may be used in the first process, where the first process is that when the terminal device is located in a network deployed by SFN transmission, it moves from one of the first RRH and the second RRH to the other.
- a process For example, the process of moving from one of RRH1 and RRH2 to the other in FIG. 1.
- the target QCL reference information includes the target QCL reference source and target QCL parameters corresponding to the target QCL reference source. That is to say, through the target QCL reference information, the DMRS resource can refer to the correct QCL source and its corresponding target QCL parameters when performing channel estimation and data demodulation.
- the foregoing target QCL reference information satisfies at least one of the following conditions:
- the foregoing target QCL reference source is different from the first QCL reference source, and the first QCL reference source includes a first TRS resource and a second TRS resource.
- the first TRS resource may be sent by the network device via the first RRH
- the second TRS resource may be sent by the network device via the second RRH.
- the foregoing target QCL parameters are different from the first QCL parameters, and the first QCL parameters are all QCL parameters in the QCL type corresponding to the first TRS resource and all QCL parameters in the QCL type corresponding to the second TRS resource.
- the target QCL reference source of the DMRS is different from the QCL source that refers to the first TRS resource and the second TRS resource in the related technology, and/or the target QCL parameter corresponding to the target QCL reference source is referenced by the DMRS resource in the related technology
- the QCL parameters corresponding to the QCL source are different, the mismatch of the Doppler frequency offset value can be avoided.
- the specific content contained in the target QCL reference information including the target QCL reference source and its corresponding target QCL parameters may be a variety of different solutions, including but not limited to The situation described in the following specific embodiments:
- the above-mentioned target QCL reference information is indicated by the network device based on the code point in the first DCI signaling, and the code point includes the first TCI state and the second TCI state.
- the QCL reference source in the first TCI state is the first TRS resource, and the QCL type in the first TCI state is QCL TypeA; the QCL reference source in the second TCI state is the second TRS resource, and the second TCI state
- the QCL type in is QCL TypeA or the first QCL type; wherein, the QCL parameter in the first QCL type is the delay extension.
- the target QCL reference information of the DMRS port can be indicated by the DCI as two TCI states included in the code points in the TCI domain, that is, the target QCL reference source of the DMRS port is configured as the first TRS resource And the second TRS resource.
- the target QCL parameter corresponding to the target QCL reference source may jointly refer to the QCL parameter in the QCL TypeA of the first TRS resource and the QCL parameter in the QCL TypeA of the second TRS resource.
- the QCL parameter corresponding to the target QCL type may jointly refer to the QCL parameter in the QCL TypeA of the first TRS resource and the QCL parameter in the newly defined first QCL type for immediate extension.
- the above-mentioned QCL TypeA represents the QCL type, and the QCL parameters in QCL TypeA are Doppler frequency offset, Doppler spread, average delay, and delay spread.
- the target QCL reference source includes: the main QCL reference source And non-primary QCL reference sources.
- the main QCL reference source is one of the first TRS resource and the second TRS resource
- the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource
- the target QCL parameters include the main QCL reference source All QCL parameters in the corresponding QCL Type A and some QCL parameters in the QCL Type A corresponding to the non-primary QCL reference source, among which some QCL parameters are delay extensions.
- the target QCL reference source distinguishes between the first TRS resource and the second TRS resource, and the target QCL parameter corresponding to the target QCL reference source is different from the first QCL parameter.
- the UE will jointly refer to the first TRS.
- the delay spread of both the resource and the second TRS resource performs channel estimation and data demodulation.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, and the network device makes an explicit indication through the first signaling; wherein, the first signaling includes RRC Signaling, MAC CE signaling or DCI signaling.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, and the network device performs an implicit indication through a first sequence, and the first sequence is the first TCI
- the order of state and second TCI state in the code point, the main QCL reference source is the TRS resource in the TCI state that is arranged before the code point.
- the target QCL reference source when the QCL type in the first TCI state is QCL TypeA, and the QCL type in the second TCI state is the first QCL type, the target QCL reference source includes the first QCL type.
- TRS resources and second TRS resources; the aforementioned target QCL parameters include: all QCL parameters in the QCL TypeA corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.
- the target QCL parameter corresponding to the target QCL reference source is different from the first QCL parameter.
- the UE will jointly refer to the delay spread of both the first TRS resource and the second TRS resource for channel estimation and data demodulation.
- the above-mentioned target QCL reference resource is the third TRS resource
- the third TRS resource is sent by the network device after frequency offset precompensation
- the QCL reference source of the third TRS resource is the first TRS resource or
- the QCL type referenced by the third TRS resource is QCL TypeC or the second QCL type
- the first TRS resource, the second TRS resource, and the third TRS resource are all periodic TRS resources.
- the second QCL type is any QCL type except QCL TypeA, QCL TypeB, QCL TypeC, and QCL TypeD; the foregoing target QCL parameters are all QCL parameters in the foregoing QCL TypeA.
- the above-mentioned QCL TypeB, QCL TypeC, and QCL TypeD all indicate the QCL type
- the QCL parameters in QCL TypeB are Doppler frequency offset and Doppler spread
- the QCL parameters in QCL TypeC are Doppler frequency offset and average delay.
- QCL parameters in QCL TypeD are spatial receiving parameters.
- the target QCL reference source is different from the first QCL reference source.
- the periodic TRS resource that is sent between the frequency offset precompensation and the transmission of the same PDSCH that is, the third TRS resource
- the third TRS resource refers to another periodic TRS resource (that is, the first TRS resource or the second TRS resource) by QCL TypeC.
- the third TRS resource may be sent by the network device via the first RRH and the second RRH after the frequency offset pre-compensation, and before the same physical downlink shared channel PDSCH is sent via the first RRH and the second RRH. .
- the target QCL reference source of the DMRS is configured as a specific DMRS resource, and the target QCL parameters are all QCL parameters in QCL TypeA.
- the indication information of the specific DMRS resource is configured by the network device through second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling.
- the target QCL reference source is different from the first QCL reference source, and specifically may be a specific DMRS resource designated in advance.
- the target QCL reference source is a specific DMRS resource.
- the target QCL reference source is different from the first QCL reference source.
- the QCL reference source configured for the DMRS resource is itself, that is, they are all pre-designated specific DMRS resources.
- the network device may be a specific DMRS resource in the case that the DMRS resource transmitted via the first RRH and the second RRH in one time slot or two consecutive time slots is a specific DMRS resource, and the QCL reference source configured for the DMRS resource is Specific DMRS resource indicated in advance.
- the target QCL reference source is the specific DMRS resource sent last time before the DMRS resource is sent. DMRS resources.
- the network device may also be configured to configure the QCL reference source for the DMRS resource in the case that the DMRS resource transmitted in the time slot or two consecutive time slots via the first RRH and the second RRH is not a specific DMRS resource Specific DMRS resource indicated in advance.
- the above-mentioned target switching may be instructed by the network device in different ways, including but not limited to the following specific embodiments:
- step 507 may be specifically executed as the following content:
- the target signaling includes MAC CE signaling or physical layer control signaling.
- time margin n, time T, and time (T+n) is milliseconds.
- target switching is explicitly indicated by the network device through target signaling.
- an additional time margin of n milliseconds is provided to ensure that the UE has sufficient time margin to complete the corresponding target switching, thereby ensuring the data demodulation capability of the terminal device.
- the target signaling is MAC CE signaling or physical layer control signaling
- the target signaling is the first SpatialRelationInfo handover signaling
- the target switch is SpatialRelationInfo switch.
- the unit of time (T+3+n1) is milliseconds.
- time margin n may be based on the time margin of 3 milliseconds provided in the related art, and further provide an additional time margin of n1 milliseconds.
- the above-mentioned first SpatialRelationInfo switching signaling is used to instruct the reference signal set associated with the SpatialRelationInfo to switch from the first set to the second set.
- the first set and the second set are two reference signal sets associated with SpatialRelationInfo.
- the first set and the second set are two different reference signal sets, and the first set and the second set are pre-configured by the network device or agreed by a protocol.
- the target switching may be TCI state switching.
- time margin n may be based on the time margin of 3 milliseconds provided in the related art, and further provide an additional time margin of n1 milliseconds.
- the above-mentioned first TCI state switching signaling is used to instruct the reference signal set associated with the TCI state to switch from the third set to the fourth set.
- the third set and the fourth set are two reference signal sets associated with the TCI state.
- the third set and the fourth set are two different reference signal sets, and the third set and the fourth set are pre-configured by the network device or agreed upon by the protocol.
- the above-mentioned first TCI state switching signaling is used to instruct a specific CORESETTCI state switching
- the specific CORESETTCI state switching includes CORESET0TCI state switching.
- the specific CORESETTCI state switch may also include some other specified CORESETTCI state switch except the CORESETTCI state switch.
- the above-mentioned first TCI state switching signaling is used to instruct the PDSCH active TCI state switching.
- the PDSCH active TCI state is the TCI state used to receive the PDSCH.
- the foregoing target signaling is DCI signaling (ie, physical layer control signaling), and the foregoing target signaling is the second TCI state switching signaling and the second SpatialRelationInfo switching signaling
- the target switching may correspond to at least one of TCI state switching and SpatialRelationInfo switching.
- the above-mentioned second TCI state switching signaling is used to switch the CORESET TCI state or the PDSCH TCI state.
- the above-mentioned target signaling is specifically agreed signaling; wherein, the specifically agreed signaling is newly defined signaling in high-speed rail mode and includes one of the following: TRP handover signaling, radio frequency The remote head RRH switching signaling, TRS switching signaling, SSB switching signaling, the third TCI state switching signaling, and the third SpatialRelationInfo switching signaling.
- the target switching can also be instructed through specially agreed signaling.
- the above-mentioned target switching is indicated by the network device in an implicit manner; wherein, no signal transmission is performed within the time margin n. In this way, signaling overhead can be saved.
- an additional time margin of n milliseconds is provided to ensure that the UE has a sufficient time margin to complete the corresponding target switching, thereby ensuring the data demodulation capability of the terminal device.
- the manner for determining the time margin n includes one of the following:
- the time margin n is configured by the network equipment. In other words, the time margin n is directly configured by the network device.
- the time margin n is reported by the terminal device. That is, the network device may configure a time margin reported by the terminal device based on its own capabilities as the time margin n, so as to meet the time requirement of the terminal device for target switching.
- the network device configures the time margin n based on the time margin n3 reported by the terminal device.
- the network device can directly configure the time margin n3 as the final time margin n, or reconfigure a new time margin n4, and configure the time margin n4 as the final time margin n, where the time margin n4 may be greater than the time margin n to meet the time requirement of the terminal device for target switching.
- the time margin n may be equal to the time margin n3 or not equal to the time margin n3.
- the network device configures the time margin n based on the time margin threshold value reported by the terminal device.
- the network device receives the time margin threshold value reported by the terminal device based on its own capabilities, it can select an appropriate time margin as the final time margin n based on the time margin threshold value. Meet the time requirements of terminal equipment for target switching.
- the time margin n may be equal to or different from the time margin threshold.
- the information determination method of the embodiment of the present invention it is possible to provide a new QCL reference relationship and type, and related signaling instructions for the network-side frequency offset pre-compensation scheme of the high-speed rail scenario, so as to solve the problem of frequency offset pre-compensation.
- the QCL reference information mismatch problem ensures the data demodulation performance of the terminal equipment.
- an additional time margin of n milliseconds is introduced, which is to introduce sufficient time margin for the crystal oscillator adjustment of the terminal device to ensure that the terminal device is before sending and receiving signals. Complete the adjustment of the crystal oscillator frequency to ensure the data demodulation performance of the terminal equipment.
- an embodiment of the present invention provides a network device 600, and the network device 600 includes:
- the configuration module 601 is configured to configure target configuration information.
- the target configuration information includes at least one of target QCL reference information and time margin n; wherein the target QCL reference information corresponds to the DMRS resource, and the target QCL reference information is used for terminal equipment to perform Channel estimation and data demodulation; time margin n is used for terminal equipment to perform target switching, where target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and TRP switching.
- the foregoing target QCL reference information includes the target QCL reference source and target QCL parameters corresponding to the target QCL reference source, and the target QCL reference information satisfies at least one of the following conditions:
- the foregoing target QCL reference source is different from the first QCL reference source.
- the first QCL reference source includes a first TRS resource and a second TRS resource; the foregoing target QCL parameter is different from the first QCL parameter, and the first QCL parameter corresponds to the first TRS resource. All QCL parameters in the QCL type and all QCL parameters in the QCL type corresponding to the second TRS resource.
- the target QCL reference information is indicated to the terminal device based on the code point in the first DCI signaling, and the code point includes the first TCI state and the second TCI state;
- the QCL reference source in the first TCI state is the first TRS resource, and the QCL type in the first TCI state is QCL TypeA;
- the QCL reference source in the second TCI state is the second TRS resource, and in the second TCI state
- the QCL type is QCL TypeA or the first QCL type; wherein, the QCL parameter in the first QCL type is the delay extension.
- the target QCL reference source includes: main QCL Reference source and non-primary QCL reference source; wherein, the primary QCL reference source is one of the first TRS resource and the second TRS resource, and the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource; the target The QCL parameters include all QCL parameters in the QCL TypeA corresponding to the primary QCL reference source and some QCL parameters in the QCL TypeA corresponding to the non-primary QCL reference source. Some of the QCL parameters are delay extensions.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, which is explicitly indicated to the terminal device by the network device through the first signaling; where ,
- the first signaling includes RRC signaling, MAC CE signaling, or DCI signaling.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, and the network device implicitly indicates to the terminal device through the first sequence.
- the sequence is the sequence of the first TCI state and the second TCI state in the code point
- the main QCL reference source is the TRS resource in the TCI state that is arranged before the code point.
- the target QCL reference source Including the first TRS resource and the second TRS resource;
- the aforementioned target QCL parameters include: all QCL parameters in the QCL TypeA corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.
- the target QCL reference resource is the third TRS resource
- the third TRS resource is sent after frequency offset precompensation
- the QCL reference source of the third TRS resource is the third TRS resource.
- a TRS resource or a second TRS resource, the QCL type referenced by the third TRS resource is QCL TypeC or the second QCL type, and the first TRS resource, the second TRS resource, and the third TRS resource are all periodic TRS resources;
- the second QCL type is any QCL type except QCL TypeA, QCL TypeB, QCL TypeC, and QCL TypeD; the target QCL parameters are all QCL parameters in QCL TypeA.
- the target QCL reference source is the specific DMRS resource.
- the target QCL reference source is the last time before the DMRS resource is sent The specific DMRS resource sent.
- the indication information of the specific DMRS resource is configured through second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling;
- the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling;
- the above target QCL parameters are all QCL parameters in QCL TypeA.
- the above-mentioned time margin n is used for the terminal device to perform target switching within the switching period after receiving the target signaling, and the switching period is from time T to time (T+ n)
- time T is used for terminal equipment to send a positive confirmation ACK message corresponding to the target signaling.
- the target switching is agreed by the protocol to be completed after time (T+n), and no signal transmission is performed within the time margin n ;
- the target signaling includes MAC CE signaling or physical layer control signaling.
- the target signaling is MAC CE signaling or physical layer control signaling
- the target signaling is the first SpatialRelationInfo handover signaling
- the above-mentioned first SpatialRelationInfo switching signaling is used to instruct the reference signal set associated with SpatialRelationInfo to switch from the first set to the second set; wherein, the first set and the second set The sets are two different reference signal sets, the first set and the second set are pre-configured by the network device or agreed upon by the protocol.
- the target signaling is MAC CE signaling
- the target signaling is the first TCI state switching signaling
- the above-mentioned first TCI state switching signaling is used to instruct the reference signal set associated with the TCI state to switch from the third set to the fourth set; wherein, the third set and The fourth set is two different reference signal sets, and the third set and the fourth set are pre-configured by the network device or agreed upon by the protocol.
- the above-mentioned first TCI state switching signaling is used to instruct the specific CORESET TCI state switching, and the specific CORESET TCI state switching includes the CORESET 0TCI state switching.
- the above-mentioned first TCI state switching signaling is used to instruct the PDSCH active TCI state switching.
- the foregoing target signaling is DCI signaling
- the foregoing target signaling is at least one of the second TCI state switching signaling and the second SpatialRelationInfo switching signaling.
- the above-mentioned second TCI state switching signaling is used to switch the CORESET TCI state or the PDSCH TCI state.
- the above-mentioned target signaling is specifically agreed signaling; wherein, the specifically agreed signaling is newly defined signaling in the high-speed rail mode and includes one of the following: TRP handover Signaling, remote radio head RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling, and third SpatialRelationInfo switching signaling.
- the above-mentioned target switching is implicitly indicated by the network device to the terminal device; wherein, no signal transmission is performed within the time margin n.
- the manner for determining the time margin n includes one of the following:
- the time margin n is agreed by the agreement; the time margin n is configured by the network device; the time margin n is reported by the terminal device; the time margin n is configured by the network device based on the time margin n3 reported by the terminal device; the network device is based on the terminal The time margin threshold value reported by the device, and the time margin n is configured.
- the network device 600 provided by the embodiment of the present invention can implement the foregoing information configuration method performed by the network device 600, and the relevant descriptions about the information configuration method are all applicable to the network device 600, and will not be repeated here.
- target configuration information may be configured, and the target configuration information includes at least one of target QCL reference information and time margin n.
- the terminal device can refer to the correct QCL information when performing channel estimation and data demodulation based on the DMRS resource.
- the terminal device can perform target switching based on the time margin n, that is, provide a sufficient amount of time margin for the terminal device to perform target switching, so as to ensure the data solution of the terminal device.
- Adjustment capability where the target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and TRP switching. In this way, the communication efficiency of the system can be improved.
- an embodiment of the present invention provides a terminal device 700.
- the terminal device 700 includes a receiving module 701, a first processing module 703, and a second processing module 705.
- the receiving module 701 is configured to receive target configuration information configured by the network device, and the target configuration information includes at least one of target QCL reference information and time margin n; the first processing module 703 is configured to perform channel processing according to the target QCL reference information Estimation and data demodulation; the second processing module 705 is configured to perform target switching according to the time margin n, where the target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and TRP switching.
- the foregoing target QCL reference information includes the target QCL reference source and target QCL parameters corresponding to the target QCL reference source, and the target QCL reference information satisfies at least one of the following conditions:
- the target QCL reference source is different from the first QCL reference source.
- the first QCL reference source includes the first TRS resource and the second TRS resource; the target QCL parameter is different from the first QCL parameter, and the first QCL parameter is the QCL corresponding to the first TRS resource All QCL parameters in the type and all QCL parameters in the QCL type corresponding to the second TRS resource.
- the aforementioned target QCL reference information is indicated by the network device based on the code point in the first DCI signaling, and the code point includes the first TCI state and the second TCI state;
- the QCL reference source in the first TCI state is the first TRS resource
- the QCL type in the first TCI state is QCL TypeA
- the QCL reference source in the second TCI state is the second TRS resource
- the second TCI state The QCL type in is QCL TypeA or the first QCL type; wherein, the QCL parameter in the first QCL type is the delay extension.
- the target QCL reference source includes: main QCL Reference source and non-primary QCL reference source; wherein, the primary QCL reference source is one of the first TRS resource and the second TRS resource, and the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource; the target The QCL parameters include all QCL parameters in the QCL TypeA corresponding to the primary QCL reference source and some QCL parameters in the QCL TypeA corresponding to the non-primary QCL reference source. Some of the QCL parameters are delay extensions.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, and is explicitly indicated by the network device through the first signaling;
- One signaling includes RRC signaling, MAC CE signaling, or DCI signaling.
- the above-mentioned first TRS resource or the second TRS resource is configured as the main QCL reference source, and the network device performs an implicit indication through the first sequence, and the first sequence is The sequence of the first TCI state and the second TCI state in the code point, and the main QCL reference source is the TRS resource in the TCI state that is arranged before the code point.
- the target QCL reference source Including the first TRS resource and the second TRS resource;
- the aforementioned target QCL parameters include: all QCL parameters in the QCL TypeA corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.
- the above-mentioned target QCL reference resource is a third TRS resource
- the third TRS resource is sent by the network device after frequency offset precompensation
- the QCL reference of the third TRS resource The source is the first TRS resource or the second TRS resource
- the QCL type referenced by the third TRS resource is QCL TypeC or the second QCL type
- the first TRS resource, the second TRS resource, and the third TRS resource are all periodic TRS resources ;
- the second QCL type is any QCL type except QCL TypeA, QCL TypeB, QCL TypeC, and QCL TypeD
- the target QCL parameters are all QCL parameters in QCL TypeA.
- the target QCL reference source is the specific DMRS resource.
- the target QCL reference source is the last time before sending the DMRS resource The specific DMRS resource sent.
- the indication information of the specific DMRS resource is configured by the network device through second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI Signaling; target QCL parameters are all QCL parameters in QCL TypeA.
- the above-mentioned second processing module may be specifically used for:
- the target signaling includes MAC CE signaling or physical layer control signaling.
- the above-mentioned first SpatialRelationInfo switching signaling is used to instruct the reference signal set associated with SpatialRelationInfo to switch from the first set to the second set; wherein, the first set and the second set The sets are two different reference signal sets, the first set and the second set are pre-configured by the network device or agreed upon by the protocol.
- the target signaling is MAC CE signaling
- the target signaling is the first TCI state switching signaling
- the above-mentioned first TCI state switching signaling is used to instruct the reference signal set associated with the TCI state to switch from the third set to the fourth set; wherein, the third set and The fourth set is two different reference signal sets, and the third set and the fourth set are pre-configured by the network device or agreed upon by the protocol.
- the above-mentioned first TCI state switching signal is used to instruct the specific CORESET TCI state switching, and the specific CORESET TCI state switching includes the CORESET 0TCI state switching.
- the above-mentioned first TCI state switching signaling is used to instruct the PDSCH active TCI state switching.
- the target signaling is DCI signaling
- the target signaling is at least one of the second TCI state switching signaling and the second SpatialRelationInfo switching signaling.
- the above-mentioned second TCI state switching signaling is used to switch the CORESET TCI state or the PDSCH TCI state.
- the above-mentioned target signaling is specifically agreed signaling; wherein, the specifically agreed signaling is newly defined signaling in the high-speed rail mode and includes one of the following: TRP handover Signaling, RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling, and third SpatialRelationInfo switching signaling.
- the above-mentioned target switching is indicated by the network device in an implicit manner; wherein, no signal transmission is performed within the time margin n.
- the manner for determining the time margin n includes one of the following:
- the time margin n is agreed by the agreement; the time margin n is configured by the network device; the time margin n is reported by the terminal device; the time margin n is configured by the network device based on the time margin n3 reported by the terminal device; the network device is based on the terminal The time margin threshold value reported by the device, and the time margin n is configured.
- the terminal device 700 provided in the embodiment of the present invention can implement the foregoing information determination method performed by the terminal device 700, and the relevant descriptions about the information determination method are all applicable to the terminal device 700, and will not be repeated here.
- At least one of the target QCL reference information and the time margin n can be acquired according to the target configuration information configured by the network device.
- the correct QCL information can be referred to when performing channel estimation and data demodulation based on the target QCL reference information and the DMRS resource.
- the target switching can be performed based on the sufficient time margin additionally configured by the network device, thereby ensuring the data demodulation capability of the terminal device.
- the target switching includes the crystal oscillator frequency. At least one of switching, SpatialRelationInfo switching, TCI state switching, and TRP switching. In this way, the communication efficiency of the system can be improved.
- FIG. 9 is a structural diagram of a network device applied in an embodiment of the present invention, which can implement the details of the foregoing information configuration method and achieve the same effect.
- the network device 800 includes: a processor 801, a transceiver 802, a memory 803, a user interface 804, and a bus interface 805, where:
- the network device 800 further includes: a computer program stored in the memory 803 and capable of running on the processor 801, and the computer program is executed by the processor 801 to implement the following steps:
- the target configuration information includes at least one of target QCL reference information and time margin n; wherein the target QCL reference information corresponds to the DMRS resource, and the target QCL reference information is used for the terminal device to perform channel estimation and data demodulation ;
- the time margin n is used for the terminal device to perform target switching, where the target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and TRP switching.
- target configuration information may be configured, and the target configuration information includes at least one of target QCL reference information and time margin n.
- the terminal device can refer to the correct QCL information when performing channel estimation and data demodulation based on the DMRS resource.
- the terminal device can perform target switching based on the time margin n, that is, provide a sufficient amount of time margin for the terminal device to perform target switching, so as to ensure the data solution of the terminal device.
- Adjustment capability where the target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and TRP switching. In this way, the communication efficiency of the system can be improved.
- the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 801 and various circuits of the memory represented by the memory 803 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, will not be further described herein.
- the bus interface 805 provides an interface.
- the transceiver 802 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
- the user interface 804 may also be an interface capable of connecting externally and internally with the required equipment.
- the connected equipment includes but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 can store data used by the processor 801 when performing operations.
- Fig. 10 is a block diagram of a terminal device according to another embodiment of the present invention.
- the terminal device 900 shown in FIG. 10 includes: at least one processor 901, a memory 902, at least one network interface 904, and a user interface 903.
- the various components in the terminal device 900 are coupled together through the bus system 905.
- the bus system 905 is used to implement connection and communication between these components.
- the bus system 905 also includes a power bus, a control bus, and a status signal bus.
- various buses are marked as the bus system 905 in FIG. 10.
- the user interface 903 may include a display, a keyboard, or a pointing device (for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.).
- a pointing device for example, a mouse, a trackball (trackball), a touch panel, or a touch screen, etc.
- the memory 902 in the embodiment of the present invention 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 902 of the system and method described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
- the memory 902 stores the following elements, executable modules or data structures, or a subset of them, or an extended set of them: an operating system 9021 and an application 9022.
- the operating system 9021 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 9022 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 invention may be included in the application 9022.
- the terminal device 900 further includes: a computer program that is stored in the memory 902 and can be run on the processor 901. When the computer program is executed by the processor 901, the following steps are implemented:
- Receive target configuration information configured by the network device, the target configuration information includes at least one of target QCL reference information and time margin n, where the target QCL reference information corresponds to the DMRS resource; channel estimation and data demodulation are performed according to the target QCL reference information ; Target switching is performed according to the time margin n, where the target switching includes at least one of crystal frequency switching, SpatialRelationInfo switching, TCI state switching, and point TRP switching.
- At least one of the target QCL reference information and the time margin n can be acquired according to the target configuration information configured by the network device.
- the correct QCL information can be referred to when performing channel estimation and data demodulation based on the target QCL reference information and DMRS resource.
- the target switching can be performed based on the sufficient time margin additionally configured by the network device, thereby ensuring the data demodulation capability of the terminal device.
- the target switching includes the crystal oscillator frequency. At least one of switching, SpatialRelationInfo switching, TCI state switching, and TRP switching. In this way, the communication efficiency of the system can be improved.
- the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 901 or implemented by the processor 901.
- the processor 901 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 901 or instructions in the form of software.
- the aforementioned processor 901 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 invention 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 combination with the embodiments of the present invention 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 may be located in a computer-readable storage medium that is mature in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
- the computer-readable storage medium is located in the memory 902, and the processor 901 reads information in the memory 902, and completes the steps of the foregoing method in combination with its hardware.
- a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 901, each step of the above-mentioned information determination method embodiment is implemented.
- the embodiments described in the embodiments of the present invention may 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 the present invention 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 technology described in the embodiments of the present invention can be implemented by modules (for example, procedures, functions, etc.) that execute the functions described in the embodiments of the present invention.
- 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 terminal device 900 can implement various processes implemented by the terminal device in the foregoing embodiments, and to avoid repetition, details are not described herein again.
- the embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored in the memory and running on the processor.
- the computer program is executed by the processor to implement the above information configuration method.
- Each process of the embodiment can achieve the same technical effect, and in order to avoid repetition, it will not be repeated here.
- the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, each process of the foregoing embodiment of the information configuration method applied to a network device is realized, and To achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
- the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
- the embodiment of the present invention also provides a terminal device, including a processor, a memory, and a computer program stored in the memory and running on the processor, and the computer program is executed by the processor to implement the above-mentioned information determination method
- a terminal device including a processor, a memory, and a computer program stored in the memory and running on the processor, and the computer program is executed by the processor to implement the above-mentioned information determination method
- the embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, each process of the foregoing embodiment of the method for determining information applied to a terminal device is implemented, and To achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
- the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
- the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes a number of instructions to enable a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the method described in each embodiment of the present invention.
- a terminal which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.
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Abstract
Description
Claims (98)
- 一种信息配置方法,应用于网络设备,所述方法包括:配置目标配置信息,所述目标配置信息包括目标准共址QCL参考信息和时间余量n中的至少一个;其中,所述目标QCL参考信息与解调参考信号DMRS资源对应,所述目标QCL参考信息用于供终端设备进行信道估计和数据解调;所述时间余量n用于供所述终端设备进行目标切换,其中,所述目标切换包括晶振频率切换、空间关系信息SpatialRelationInfo切换、传输配置指示状态TCI state切换和传输接收点TRP切换中的至少一个。
- 根据权利要求1所述的方法,其中,所述目标QCL参考信息包括目标QCL参考源和所述目标QCL参考源对应的目标QCL参数,所述目标QCL参考信息满足以下条件中的至少一个:所述目标QCL参考源与第一QCL参考源不同,所述第一QCL参考源包括第一TRS资源和第二TRS资源;所述目标QCL参数与第一QCL参数不同,所述第一QCL参数为所述第一TRS资源对应的QCL类型中的所有QCL参数和所述第二TRS资源对应的QCL类型中的所有QCL参数。
- 根据权利要求2所述的方法,其中,所述目标QCL参考信息基于第一下行控制信息DCI信令中的码点指示给所述终端设备,所述码点中包括第一TCI state和第二TCI state;其中,所述第一TCI state中的QCL参考源为所述第一TRS资源,以及所述第一TCI state中的QCL类型为QCL TypeA;所述第二TCI state中的QCL参考源为所述第二TRS资源,以及所述第二TCI state中的QCL类型为所述QCL TypeA或第一QCL类型;其中,所述第一QCL类型中的QCL参数为时延扩展。
- 根据权利要求3所述的方法,其中,在所述第一TCI state中的QCL 类型和所述第二TCI state中的QCL类型均为所述QCL TypeA的情况下,所述目标QCL参考源包括:主QCL参考源和非主QCL参考源;其中,所述主QCL参考源为所述第一TRS资源和所述第二TRS资源中的一个,所述非主QCL参考源为所述第一TRS资源和所述第二TRS资源中的另一个;所述目标QCL参数包括所述主QCL参考源对应的QCL TypeA中的所有QCL参数和所述非主QCL参考源对应的QCL TypeA中的部分QCL参数,其中,所述部分QCL参数为时延扩展。
- 根据权利要求4所述的方法,其中,所述第一TRS资源或者所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一信令显式的指示给所述终端设备;其中,所述第一信令包括RRC信令、媒体接入控制控制单元MAC CE信令或下行控制信息DCI信令。
- 根据权利要求4所述的方法,其中,所述第一TRS资源或者所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一顺序隐式的指示给所述终端设备,所述第一顺序为所述第一TCI state和所述第二TCI state在所述码点中的前后顺序,所述主QCL参考源为所述码点中排列在前的TCI state中的TRS资源。
- 根据权利要求3所述的方法,其中,在所述第一TCI state中的QCL类型为所述QCL TypeA,所述第二TCI state中的QCL类型为所述第一QCL类型的情况下,所述目标QCL参考源包括所述第一TRS资源和所述第二TRS资源;所述目标QCL参数包括:所述第一TRS资源对应的所述QCL TypeA中的所有QCL参数,以及所述第二TRS资源对应的所述第一QCL类型中的所有QCL参数。
- 根据权利要求2所述的方法,其中,所述目标QCL参考资源为第三TRS资源,所述第三TRS资源在进行频偏预补偿之后发送,且所述第三TRS 资源的QCL参考源为所述第一TRS资源或所述第二TRS资源,所述第三TRS资源所参考的QCL类型为QCL TypeC或第二QCL类型,所述第一TRS资源、所述第二TRS资源和所述第三TRS资源均为周期性TRS资源;其中,所述第二QCL类型为除QCL TypeA、QCL TypeB、所述QCL TypeC和QCL TypeD外的任一QCL类型;所述目标QCL参数为所述QCL TypeA中的所有QCL参数。
- 根据权利要求2所述的方法,其中,在一个时隙或连续两个时隙内发送的所述DMRS资源是特定的DMRS资源的情况下,所述目标QCL参考源为所述特定的DMRS资源。
- 根据权利要求2所述的方法,其中,在一个时隙或连续两个时隙内发送的所述DMRS资源不是特定的DMRS资源的情况下,所述目标QCL参考源为发送所述DMRS资源前最后一次发送的所述特定的DMRS资源。
- 根据权利要求9或10所述的方法,其中,所述特定的DMRS资源的指示信息通过第二信令配置,其中,所述第二信令包括RRC信令、MAC CE信令或DCI信令;所述目标QCL参数为QCL TypeA中的所有QCL参数。
- 根据权利要求1所述的方法,其中,所述时间余量n用于供所述终端设备在接收到目标信令后的切换时段内进行所述目标切换,所述切换时段为时刻T到时刻(T+n)对应的时段,所述时刻T用于供所述终端设备发送与所述目标信令对应的肯定确认ACK消息,所述目标切换由协议约定在所述时刻(T+n)后完成,且所述时间余量n内不进行信号传输;其中,所述目标信令包括媒体接入控制单元MAC CE信令或者物理层控制信令。
- 根据权利要求12所述的方法,其中,在所述目标信令为MAC CE信令或物理层控制信令,且所述目标信令为第一SpatialRelationInfo切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求13所述的方法,其中,所述第一SpatialRelationInfo切换信令用于指示与SpatialRelationInfo关联的参考信号集合从第一集合切换至第二集合;其中,所述第一集合与所述第二集合为不同的两个参考信号集合,所述第一集合和所述第二集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求12所述的方法,其中,在所述目标信令为MAC CE信令,且所述目标信令为第一TCI state切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求15所述的方法,其中,所述第一TCI state切换信令用于指示与TCI state关联的参考信号集合从第三集合切换至第四集合;其中,所述第三集合和所述第四集合为不同的两个参考信号集合,所述第三集合和所述第四集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求16所述的方法,其中,所述第一TCI state切换信令用于对特定的控制资源集CORESET TCI state切换进行指示,所述特定的CORESET TCI state切换包括CORESET0 TCI state切换。
- 根据权利要求16所述的方法,其中,所述第一TCI state切换信令用于对PDSCH active TCI state切换进行指示。
- 根据权利要求12所述的方法,其中,在所述目标信令为DCI信令,且所述目标信令为第二TCI state切换信令和第二SpatialRelationInfo切换信令中的至少一个的情况下,所述目标切换由协议约定在所述时刻(T+n2)后完成,其中,n=n2。
- 根据权利要求19所述的方法,其中,所述第二TCI state切换信令用于切换CORESET TCI state或者PDSCH TCI state。
- 根据权利要求12所述的方法,其中,所述目标信令为专门约定的信令;其中,所述专门约定的信令为高铁模式下新定义的信令且包括以下之一:TRP切换信令、射频拉远头RRH切换信令、跟踪参考信号TRS切换信 令、同步信号块SSB切换信令、第三TCI state切换信令和第三SpatialRelationInfo切换信令。
- 根据权利要求1所述的方法,其中,所述目标切换由所述网络设备通过隐式的方式指示给所述终端设备;其中,所述时间余量n内不进行信号传输。
- 根据权利要求1所述的方法,其中,所述时间余量n的确定方式包括以下之一:由协议约定所述时间余量n;由所述网络设备配置时间余量n;由所述终端设备上报时间余量n;由所述网络设备基于所述终端设备上报的时间余量n3,配置所述时间余量n;由所述网络设备基于所述终端设备上报的时间余量门限值,配置所述时间余量n。
- 一种信息确定方法,应用于终端设备,所述方法包括:接收网络设备配置的目标配置信息,所述目标配置信息包括目标准共址QCL参考信息和时间余量n中的至少一个,其中,所述目标QCL参考信息与解调参考信号DMRS资源对应;根据所述目标QCL参考信息进行信道估计和数据解调;根据所述时间余量n进行目标切换,其中,所述目标切换包括空间关系信息晶振频率切换、SpatialRelationInfo切换、传输配置指示状态TCI state切换和传输接收点TRP切换中的至少一个。
- 根据权利要求24所述的方法,其中,所述目标QCL参考信息包括目标QCL参考源和所述目标QCL参考源对应的目标QCL参数,所述目标QCL参考信息满足以下条件中的至少一个:所述目标QCL参考源与第一QCL参考源不同,所述第一QCL参考源包 括第一跟踪参考信号TRS资源和第二TRS资源;所述目标QCL参数与第一QCL参数不同,所述第一QCL参数为所述第一TRS资源对应的QCL类型中的所有QCL参数和所述第二TRS资源对应的QCL类型中的所有QCL参数。
- 根据权利要求25所述的方法,其中,所述目标QCL参考信息由所述网络设备基于第一下行控制信息DCI信令中的码点进行指示,所述码点中包括第一TCI state和第二TCI state;其中,所述第一TCI state中的QCL参考源为所述第一TRS资源,以及所述第一TCI state中的QCL类型为QCL TypeA;所述第二TCI state中的QCL参考源为所述第二TRS资源,以及所述第二TCI state中的QCL类型为所述QCL TypeA或第一QCL类型;其中,所述第一QCL类型中的QCL参数为时延扩展。
- 根据权利要求26所述的方法,其中,在所述第一TCI state中的QCL类型和所述第二TCI state中的QCL类型均为所述QCL TypeA的情况下,所述目标QCL参考源包括:主QCL参考源和非主QCL参考源;其中,所述主QCL参考源为所述第一TRS资源和所述第二TRS资源中的一个,所述非主QCL参考源为所述第一TRS资源和所述第二TRS资源中的另一个;所述目标QCL参数包括所述主QCL参考源对应的QCL TypeA中的所有QCL参数和所述非主QCL参考源对应的QCL TypeA中的部分QCL参数,其中,所述部分QCL参数为时延扩展。
- 根据权利要求27所述的方法,其中,所述第一TRS资源或者所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一信令进行显式的指示;其中,所述第一信令包括RRC信令、媒体接入控制控制单元MAC CE信令或下行控制信息DCI信令。
- 根据权利要求27所述的方法,其中,所述第一TRS资源或者所述 第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一顺序进行隐式的指示,所述第一顺序为所述第一TCI state和所述第二TCI state在所述码点中的前后顺序,所述主QCL参考源为所述码点中排列在前的TCI state中的TRS资源。
- 根据权利要求26所述的方法,其中,在所述第一TCI state中的QCL类型为所述QCL TypeA,所述第二TCI state中的QCL类型为所述第一QCL类型的情况下,所述目标QCL参考源包括所述第一TRS资源和所述第二TRS资源;所述目标QCL参数包括:所述第一TRS资源对应的所述QCL TypeA中的所有QCL参数,以及所述第二TRS资源对应的所述第一QCL类型中的所有QCL参数。
- 根据权利要求25所述的方法,其中,所述目标QCL参考资源为第三TRS资源,所述第三TRS资源由所述网络设备在进行频偏预补偿之后发送,且所述第三TRS资源的QCL参考源为所述第一TRS资源或所述第二TRS资源,所述第三TRS资源所参考的QCL类型为QCL TypeC或第二QCL类型,所述第一TRS资源、所述第二TRS资源和所述第三TRS资源均为周期性TRS资源;其中,所述第二QCL类型为除QCL TypeA、QCL TypeB、所述QCL TypeC和QCL TypeD外的任一QCL类型;所述目标QCL参数为QCL TypeA中的所有QCL参数。
- 根据权利要求25所述的方法,其中,在一个时隙或连续两个时隙内接收的所述DMRS资源是特定的DMRS资源的情况下,所述目标QCL参考源为所述特定的DMRS资源。
- 根据权利要求25所述的方法,其中,在一个时隙或连续两个时隙内接收的所述DMRS资源不是特定的DMRS资源的情况下,所述目标QCL参考源为发送所述DMRS资源前最后一次发送的所述特定的DMRS资源。
- 根据权利要求32或33所述的方法,其中,所述特定的DMRS资源的指示信息由所述网络设备通过第二信令配置,其中,所述第二信令包括RRC信令、MAC CE信令或DCI信令;所述目标QCL参数为QCL TypeA中的所有QCL参数。
- 根据权利要求24所述的方法,其中,所述根据所述时间余量n进行目标切换,包括:在时刻T向所述网络设备发送目标信令对应的肯定确认ACK消息;在所述时刻T到时刻(T+n)对应的切换时段内,根据所述目标信令进行所述目标切换,所述目标切换由协议约定在所述时刻(T+n)后完成,且所述时间余量n内不进行信号传输;其中,所述目标信令包括媒体接入控制单元MAC CE信令或者物理层控制信令。
- 根据权利要求35所述的方法,其中,在所述目标信令为MAC CE信令或物理层控制信令,且所述目标信令为第一SpatialRelationInfo切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求36所述的方法,其中,所述第一SpatialRelationInfo切换信令用于指示与SpatialRelationInfo关联的参考信号集合从第一集合切换至第二集合;其中,所述第一集合与所述第二集合为不同的两个参考信号集合,所述第一集合和所述第二集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求35所述的方法,其中,在所述目标信令为MAC CE信令,且所述目标信令为第一TCI state切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求38所述的方法,其中,所述第一TCI state切换信令用于指示与TCI state关联的参考信号集合从第三集合切换至第四集合;其中,所述第三集合和所述第四集合为不同的两个参考信号集合,所述 第三集合和所述第四集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求39所述的方法,其中,所述第一TCI state切换信令用于对特定的控制资源集CORESET TCI state切换进行指示,所述特定的CORESET TCI state切换包括CORESET0 TCI state切换。
- 根据权利要求39所述的方法,其中,所述第一TCI state切换信令用于对PDSCH active TCI state切换进行指示。
- 根据权利要求35所述的方法,其中,在所述目标信令为DCI信令,且所述目标信令为第二TCI state切换信令和第二SpatialRelationInfo切换信令中的至少一个的情况下,所述目标切换由协议约定在时刻(T+n2)后完成,其中,n=n2。
- 根据权利要求42所述的方法,其中,所述第二TCI state切换信令用于切换CORESET TCI state或者PDSCH TCI state。
- 根据权利要求35所述的方法,其中,所述目标信令为专门约定的信令;其中,所述专门约定的信令为高铁模式下新定义的信令且包括以下之一:TRP切换信令、射频拉远头RRH切换信令、跟踪参考信号TRS切换信令、同步信号块SSB切换信令、第三TCI state切换信令和第三SpatialRelationInfo切换信令。
- 根据权利要求24所述的方法,其中,所述目标切换由所述网络设备通过隐式的方式进行指示;其中,所述时间余量n内不进行信号传输。
- 根据权利要求24所述的方法,其中,所述时间余量n的确定方式包括以下之一:由协议约定所述时间余量n;由所述网络设备配置时间余量n;由所述终端设备上报时间余量n;由所述网络设备基于所述终端设备上报的时间余量n3,配置所述时间余量n;由所述网络设备基于所述终端设备上报的时间余量门限值,配置所述时间余量n。
- 一种网络设备,包括:配置模块,用于配置目标配置信息,所述目标配置信息包括目标准共址QCL参考信息和时间余量n中的至少一个;其中,所述目标QCL参考信息与解调参考信号DMRS资源对应,所述目标QCL参考信息用于供终端设备进行信道估计和数据解调;所述时间余量n用于供所述终端设备进行目标切换,其中,所述目标切换包括晶振频率切换、空间关系信息SpatialRelationInfo切换、传输配置指示状态TCI state切换和传输接收点TRP切换中的至少一个。
- 根据权利要求47所述的网络设备,其中,所述目标QCL参考信息包括目标QCL参考源和所述目标QCL参考源对应的目标QCL参数,所述目标QCL参考信息满足以下条件中的至少一个:所述目标QCL参考源与第一QCL参考源不同,所述第一QCL参考源包括第一TRS资源和第二TRS资源;所述目标QCL参数与第一QCL参数不同,所述第一QCL参数为所述第一TRS资源对应的QCL类型中的所有QCL参数和所述第二TRS资源对应的QCL类型中的所有QCL参数。
- 根据权利要求48所述的网络设备,其中,所述目标QCL参考信息基于第一下行控制信息DCI信令中的码点指示给所述终端设备,所述码点中包括第一TCI state和第二TCI state;其中,所述第一TCI state中的QCL参考源为所述第一TRS资源,以及所述第一TCI state中的QCL类型为QCL TypeA;所述第二TCI state中的QCL参考源为所述第二TRS资源,以及所述第二TCI state中的QCL类型为所述QCL TypeA或第一QCL类型;其中,所述第一QCL类型中的QCL参数为时延扩展。
- 根据权利要求49所述的网络设备,其中,在所述第一TCI state中的QCL类型和所述第二TCI state中的QCL类型均为所述QCL TypeA的情况下,所述目标QCL参考源包括:主QCL参考源和非主QCL参考源;其中,所述主QCL参考源为所述第一TRS资源和所述第二TRS资源中的一个,所述非主QCL参考源为所述第一TRS资源和所述第二TRS资源中的另一个;所述目标QCL参数包括所述主QCL参考源对应的QCL TypeA中的所有QCL参数和所述非主QCL参考源对应的QCL TypeA中的部分QCL参数,其中,所述部分QCL参数为时延扩展。
- 根据权利要求50所述的网络设备,其中,所述第一TRS资源或者所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一信令显式的指示给所述终端设备;其中,所述第一信令包括RRC信令、媒体接入控制控制单元MAC CE信令或下行控制信息DCI信令。
- 根据权利要求50所述的网络设备,其中,所述第一TRS资源或者所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一顺序隐式的指示给所述终端设备,所述第一顺序为所述第一TCI state和所述第二TCI state在所述码点中的前后顺序,所述主QCL参考源为所述码点中排列在前的TCI state中的TRS资源。
- 根据权利要求49所述的网络设备,其中,在所述第一TCI state中的QCL类型为所述QCL TypeA,所述第二TCI state中的QCL类型为所述第一QCL类型的情况下,所述目标QCL参考源包括所述第一TRS资源和所述第二TRS资源;所述目标QCL参数包括:所述第一TRS资源对应的所述QCL TypeA中的所有QCL参数,以及所述第二TRS资源对应的所述第一QCL类型中的所有QCL参数。
- 根据权利要求48所述的网络设备,其中,所述目标QCL参考资源 为第三TRS资源,所述第三TRS资源在进行频偏预补偿之后发送,且所述第三TRS资源的QCL参考源为所述第一TRS资源或所述第二TRS资源,所述第三TRS资源所参考的QCL类型为QCL TypeC或第二QCL类型,所述第一TRS资源、所述第二TRS资源和所述第三TRS资源均为周期性TRS资源;其中,所述第二QCL类型为除QCL TypeA、QCL TypeB、所述QCL TypeC和QCL TypeD外的任一QCL类型;所述目标QCL参数为所述QCL TypeA中的所有QCL参数。
- 根据权利要求48所述的网络设备,其中,在一个时隙或连续两个时隙内发送的所述DMRS资源是特定的DMRS资源的情况下,所述目标QCL参考源为所述特定的DMRS资源。
- 根据权利要求48所述的网络设备,其中,在一个时隙或连续两个时隙内发送的所述DMRS资源不是特定的DMRS资源的情况下,所述目标QCL参考源为发送所述DMRS资源前最后一次发送的所述特定的DMRS资源。
- 根据权利要求55或56所述的网络设备,其中,所述特定的DMRS资源的指示信息通过第二信令配置,其中,所述第二信令包括RRC信令、MAC CE信令或DCI信令;所述目标QCL参数为QCL TypeA中的所有QCL参数。
- 根据权利要求47所述的网络设备,其中,所述时间余量n用于供所述终端设备在接收到目标信令后的切换时段内进行所述目标切换,所述切换时段为时刻T到时刻(T+n)对应的时段,所述时刻T用于供所述终端设备发送与所述目标信令对应的肯定确认ACK消息,所述目标切换由协议约定在所述时刻(T+n)后完成,且所述时间余量n内不进行信号传输;其中,所述目标信令包括媒体接入控制单元MAC CE信令或者物理层控制信令。
- 根据权利要求58所述的网络设备,其中,在所述目标信令为MAC CE 信令或物理层控制信令,且所述目标信令为第一SpatialRelationInfo切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求59所述的网络设备,其中,所述第一SpatialRelationInfo切换信令用于指示与SpatialRelationInfo关联的参考信号集合从第一集合切换至第二集合;其中,所述第一集合与所述第二集合为不同的两个参考信号集合,所述第一集合和所述第二集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求58所述的网络设备,其中,在所述目标信令为MAC CE信令,且所述目标信令为第一TCI state切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求61所述的网络设备,其中,所述第一TCI state切换信令用于指示与TCI state关联的参考信号集合从第三集合切换至第四集合;其中,所述第三集合和所述第四集合为不同的两个参考信号集合,所述第三集合和所述第四集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求62所述的网络设备,其中,所述第一TCI state切换信令用于对特定的控制资源集CORESET TCI state切换进行指示,所述特定的CORESET TCI state切换包括CORESET0 TCI state切换。
- 根据权利要求62所述的网络设备,其中,所述第一TCI state切换信令用于对PDSCH active TCI state切换进行指示。
- 根据权利要求58所述的网络设备,其中,在所述目标信令为DCI信令,且所述目标信令为第二TCI state切换信令和第二SpatialRelationInfo切换信令中的至少一个的情况下,所述目标切换由协议约定在所述时刻(T+n2)后完成,其中,n=n2。
- 根据权利要求65所述的网络设备,其中,所述第二TCI state切换信令用于切换CORESET TCI state或者PDSCH TCI state。
- 根据权利要求58所述的网络设备,其中,所述目标信令为专门约定 的信令;其中,所述专门约定的信令为高铁模式下新定义的信令且包括以下之一:TRP切换信令、射频拉远头RRH切换信令、跟踪参考信号TRS切换信令、同步信号块SSB切换信令、第三TCI state切换信令和第三SpatialRelationInfo切换信令。
- 根据权利要求47所述的网络设备,其中,所述目标切换由所述网络设备通过隐式的方式指示给所述终端设备;其中,所述时间余量n内不进行信号传输。
- 根据权利要求47所述的网络设备,其中,所述时间余量n的确定方式包括以下之一:由协议约定所述时间余量n;由所述网络设备配置时间余量n;由所述终端设备上报时间余量n;由所述网络设备基于所述终端设备上报的时间余量n3,配置所述时间余量n;由所述网络设备基于所述终端设备上报的时间余量门限值,配置所述时间余量n。
- 一种终端设备,包括:接收模块,用于接收网络设备配置的目标配置信息,所述目标配置信息包括目标准共址QCL参考信息和时间余量n中的至少一个;第一处理模块,用于根据所述目标QCL参考信息进行信道估计和数据解调;第二处理模块,用于根据所述时间余量n进行目标切换,其中,所述目标切换包括晶振频率切换、空间关系信息SpatialRelationInfo切换、传输配置指示状态TCI state切换和传输接收点TRP切换中的至少一个;其中,所述目标QCL参考信息与解调参考信号DMRS资源对应。
- 根据权利要求70所述的终端设备,其中,所述目标QCL参考信息包括目标QCL参考源和所述目标QCL参考源对应的目标QCL参数,所述目标QCL参考信息满足以下条件中的至少一个:所述目标QCL参考源与第一QCL参考源不同,所述第一QCL参考源包括第一跟踪参考信号TRS资源和第二TRS资源;所述目标QCL参数与第一QCL参数不同,所述第一QCL参数为所述第一TRS资源对应的QCL类型中的所有QCL参数和所述第二TRS资源对应的QCL类型中的所有QCL参数。
- 根据权利要求71所述的终端设备,其中,所述目标QCL参考信息由所述网络设备基于第一下行控制信息DCI信令中的码点进行指示,所述码点中包括第一TCI state和第二TCI state;其中,所述第一TCI state中的QCL参考源为所述第一TRS资源,以及所述第一TCI state中的QCL类型为QCL TypeA;所述第二TCI state中的QCL参考源为所述第二TRS资源,以及所述第二TCI state中的QCL类型为所述QCL TypeA或第一QCL类型;其中,所述第一QCL类型中的QCL参数为时延扩展。
- 根据权利要求72所述的终端设备,其中,在所述第一TCI state中的QCL类型和所述第二TCI state中的QCL类型均为所述QCL TypeA的情况下,所述目标QCL参考源包括:主QCL参考源和非主QCL参考源;其中,所述主QCL参考源为所述第一TRS资源和所述第二TRS资源中的一个,所述非主QCL参考源为所述第一TRS资源和所述第二TRS资源中的另一个;所述目标QCL参数包括所述主QCL参考源对应的QCL TypeA中的所有QCL参数和所述非主QCL参考源对应的QCL TypeA中的部分QCL参数,其中,所述部分QCL参数为时延扩展。
- 根据权利要求73所述的终端设备,其中,所述第一TRS资源或者 所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一信令进行显式的指示;其中,所述第一信令包括RRC信令、媒体接入控制控制单元MAC CE信令或下行控制信息DCI信令。
- 根据权利要求73所述的终端设备,其中,所述第一TRS资源或者所述第二TRS资源被配置为所述主QCL参考源,由所述网络设备通过第一顺序进行隐式的指示,所述第一顺序为所述第一TCI state和所述第二TCI state在所述码点中的前后顺序,所述主QCL参考源为所述码点中排列在前的TCI state中的TRS资源。
- 根据权利要求72所述的终端设备,其中,在所述第一TCI state中的QCL类型为所述QCL TypeA,所述第二TCI state中的QCL类型为所述第一QCL类型的情况下,所述目标QCL参考源包括所述第一TRS资源和所述第二TRS资源;所述目标QCL参数包括:所述第一TRS资源对应的所述QCL TypeA中的所有QCL参数,以及所述第二TRS资源对应的所述第一QCL类型中的所有QCL参数。
- 根据权利要求71所述的终端设备,其中,所述目标QCL参考资源为第三TRS资源,所述第三TRS资源由所述网络设备在进行频偏预补偿之后发送,且所述第三TRS资源的QCL参考源为所述第一TRS资源或所述第二TRS资源,所述第三TRS资源所参考的QCL类型为QCL TypeC或第二QCL类型,所述第一TRS资源、所述第二TRS资源和所述第三TRS资源均为周期性TRS资源;其中,所述第二QCL类型为除QCL TypeA、QCL TypeB、所述QCL TypeC和QCL TypeD外的任一QCL类型;所述目标QCL参数为QCL TypeA中的所有QCL参数。
- 根据权利要求71所述的终端设备,其中,在一个时隙或连续两个时隙内接收的所述DMRS资源是特定的DMRS资源的情况下,所述目标QCL 参考源为所述特定的DMRS资源。
- 根据权利要求71所述的终端设备,其中,在一个时隙或连续两个时隙内接收的所述DMRS资源不是特定的DMRS资源的情况下,所述目标QCL参考源为发送所述DMRS资源前最后一次发送的所述特定的DMRS资源。
- 根据权利要求78或79所述的终端设备,其中,所述特定的DMRS资源的指示信息由所述网络设备通过第二信令配置,其中,所述第二信令包括RRC信令、MAC CE信令或DCI信令;所述目标QCL参数为QCL TypeA中的所有QCL参数。
- 根据权利要求70所述的终端设备,其中,所述第二处理模块用于:在时刻T向所述网络设备发送目标信令对应的肯定确认ACK消息;在所述时刻T到时刻(T+n)对应的切换时段内,根据所述目标信令进行所述目标切换,所述目标切换由协议约定在所述时刻(T+n)后完成,且所述时间余量n内不进行信号传输;其中,所述目标信令包括媒体接入控制单元MAC CE信令或者物理层控制信令。
- 根据权利要求81所述的终端设备,其中,在所述目标信令为MAC CE信令或物理层控制信令,且所述目标信令为第一SpatialRelationInfo切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求82所述的终端设备,其中,所述第一SpatialRelationInfo切换信令用于指示与SpatialRelationInfo关联的参考信号集合从第一集合切换至第二集合;其中,所述第一集合与所述第二集合为不同的两个参考信号集合,所述第一集合和所述第二集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求81所述的终端设备,其中,在所述目标信令为MAC CE信令,且所述目标信令为第一TCI state切换信令的情况下,所述目标切换由协议约定在时刻(T+3+n1)后完成,其中,n=3+n1。
- 根据权利要求84所述的终端设备,其中,所述第一TCI state切换信令用于指示与TCI state关联的参考信号集合从第三集合切换至第四集合;其中,所述第三集合和所述第四集合为不同的两个参考信号集合,所述第三集合和所述第四集合由所述网络设备预先配置或者由协议约定。
- 根据权利要求85所述的终端设备,其中,所述第一TCI state切换信令用于对特定的控制资源集CORESET TCI state切换进行指示,所述特定的CORESET TCI state切换包括CORESET0 TCI state切换。
- 根据权利要求85所述的终端设备,其中,所述第一TCI state切换信令用于对PDSCH active TCI state切换进行指示。
- 根据权利要求81所述的终端设备,其中,在所述目标信令为DCI信令,且所述目标信令为第二TCI state切换信令和第二SpatialRelationInfo切换信令中的至少一个的情况下,所述目标切换由协议约定在时刻(T+n2)后完成,其中,n=n2。
- 根据权利要求88所述的终端设备,其中,所述第二TCI state切换信令用于切换CORESET TCI state或者PDSCH TCI state。
- 根据权利要求81所述的终端设备,其中,所述目标信令为专门约定的信令;其中,所述专门约定的信令为高铁模式下新定义的信令且包括以下之一:TRP切换信令、射频拉远头RRH切换信令、跟踪参考信号TRS切换信令、同步信号块SSB切换信令、第三TCI state切换信令和第三SpatialRelationInfo切换信令。
- 根据权利要求70所述的终端设备,其中,所述目标切换由所述网络设备通过隐式的方式进行指示;其中,所述时间余量n内不进行信号传输。
- 根据权利要求70所述的终端设备,其中,所述时间余量n的确定方式包括以下之一:由协议约定所述时间余量n;由所述网络设备配置时间余量n;由所述终端设备上报时间余量n;由所述网络设备基于所述终端设备上报的时间余量n3,配置所述时间余量n;由所述网络设备基于所述终端设备上报的时间余量门限值,配置所述时间余量n。
- 一种网络设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求1至23中任一项所述的方法的步骤。
- 一种终端设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求24至46中任一项所述的方法的步骤。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1至23中任一项所述的方法的步骤,或者所述计算机程序被处理器执行时实现如权利要求24至46中任一项所述的方法的步骤。
- 一种网络设备,所述网络设备被配置为用于执行如权利要求1至23中任一项所述的方法的步骤。
- 一种终端设备,所述终端被配置为用于执行如权利要求24至46中任一项所述的方法的步骤。
- 一种计算机程序产品,所述计算机程序产品被至少一个处理器执行时实现如权利要求1至23中任一项所述的方法的步骤,或者实现如权利要求24至46中任一项所述的方法的步骤。
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