CN114499599B - Method, device and medium for determining overlapping transmitting capacity and overdriving capacity of virtual antenna system - Google Patents
Method, device and medium for determining overlapping transmitting capacity and overdriving capacity of virtual antenna system Download PDFInfo
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- CN114499599B CN114499599B CN202011156212.0A CN202011156212A CN114499599B CN 114499599 B CN114499599 B CN 114499599B CN 202011156212 A CN202011156212 A CN 202011156212A CN 114499599 B CN114499599 B CN 114499599B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
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Abstract
The invention provides a method and a device for determining overlapping transmitting capacity and overdriving capacity of a virtual antenna system, wherein the method comprises the following steps: receiving overlapping transmission capability transmitted by a plurality of terminals; and determining the overdriving capacity according to the overlapped transmission capacity transmitted by the plurality of terminals, so that the base station can be ensured to overdrive and demodulate uplink transmission data of all the terminals. The method further comprises the steps of: sending an overdriving capacity switching time set to the base station, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in a plurality of overdriving capacities in the overdriving capacity set of the terminal; if the over-mining capability switching condition is met, determining target switching time information required by switching the current over-mining capability to the updated over-mining capability according to the over-mining capability switching time set; completing the switching from the current overdriving capacity to the updated overdriving capacity within the target switching time; and sending target switching time information to the base station, so that the terminal can switch among different overdriving capacities according to requirements, and the balance of performance and power consumption is obtained.
Description
Technical Field
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and a device for determining overlapping transmitting capacity and overdriving capacity of a virtual antenna system.
Background
In the existing multiple-input multiple-output (Multi Input Multi Output, MIMO) system, the terminal is limited by factors such as volume, power consumption and the like, and the number of physical antennas which can be carried by the terminal is small. Thus, there is a limited data flow that can be resolved for a single terminal. When the terminal samples the received signal, the terminal samples the received signal at the Nyquist rate, and the interference between sampling points is less.
The virtual antenna technology opens up a new idea for continuously improving the MIMO space multiplexing capability by modifying the transmission channel matrix to meet the requirement of higher system capacity of 6G. In the virtual antenna system, a transmitting end introduces an overlapping transmitting factor A, so that each transmitting antenna asynchronously transmits a transmitting signal at equal interval time delay of 1/A; and introducing an over-sampling factor B at a receiving end, and when the received signal is over-sampled at the super-Nyquist rate, obtaining B-1 virtual receiving antennas due to over-sampling processing, wherein the dimension of the transmission channel matrix is changed due to the over-sampling processing. Through the above-described process, although the super nyquist sampling introduces inter-symbol interference, the terminal in the virtual antenna system forms a plurality of virtual receiving antennas, and thus the number of resolvable data streams will be not less than the number of physical antennas thereof, thereby obtaining additional spatial multiplexing gain and virtual diversity receiving gain.
However, the following problems exist in the prior art:
(1) Uplink transmission
For the uplink transmission process of the virtual antenna system, the overlapping transmission factors of the terminals are different due to the difference of hardware capability of the terminals. Therefore, when the receiving end (the centralized MIMO array) performs oversampling with a certain oversampling factor, it may not be possible to effectively sample the transmission data of all the terminals.
As shown in fig. 1, if there are 3 terminals with different overlapping transmission factors, uplink data transmission is performed. When the base station performs over-sampling, the required sampling point data is different when terminal data with different overlapping transmission factors are demodulated, as shown in fig. 2. If the base station overdriven with any overdriven factor, the adopted overdriven factor is 3, the data acquisition of the k=3 terminal can be satisfied at this time, but for the k=2, 4 terminal, the effective data is obtained only in k×ts (K is an integer), and the other sampling point data cannot be used for demodulation, wherein Ts is one sampling period.
(2) Downlink transmission
For the downlink transmission process of the virtual antenna system, when different terminals enter the working state, the overdriving factor is generally fixed. Therefore, when the terminal continuously works with the overdriving factor, challenges such as power consumption, complexity, synchronization accuracy and the like caused by overdriving are faced, and particularly, the overdriving factor is high, so that the power consumption is greatly increased, and the performance of the system is greatly affected.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining overlapping transmitting capacity and overdriving capacity of a virtual antenna system, which are used for solving the problems that a base station possibly cannot effectively sample transmitting data of all terminals due to the fact that different terminals adopt different sampling factors in uplink transmission in the virtual antenna system, and power consumption is large and complexity is high due to the fact that the overdriving factors of the terminals are fixed in downlink transmission.
In order to solve the technical problems, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for determining overlapping transmission capability of a virtual antenna system, which is applied to a terminal, and includes:
selecting an overlapping transmission capability from the overlapping transmission capability set;
and transmitting the selected overlapped transmitting capacity to the base station.
In a second aspect, an embodiment of the present invention provides a method for determining an overdriving capability of a virtual antenna system, which is applied to a base station, and includes:
receiving overlapping transmission capability transmitted by a plurality of terminals;
and determining the overdriving capacity according to the overlapped sending capacity sent by the plurality of terminals.
In a third aspect, an embodiment of the present invention provides a method for determining an overdriving capability of a virtual antenna system, which is applied to a terminal, including:
sending an overdriving capacity switching time set to a base station, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
if the over-mining capability switching condition is met, determining target switching time information required by switching the current over-mining capability to the updated over-mining capability according to the over-mining capability switching time set;
completing the switching from the current overdriving capacity to the updated overdriving capacity within the target switching time;
and sending the target switching time information to the base station.
In a fourth aspect, an embodiment of the present invention provides a method for determining an overdriving capability of a virtual antenna system, which is applied to a base station, including:
receiving an overdriving capacity switching time set sent by a terminal, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
receiving target switching time information sent by the terminal;
and completing the switching of the overlapped sending capacity within the target switching time.
In a fifth aspect, an embodiment of the present invention provides a terminal, including:
the selecting module is used for selecting an overlapped transmitting capability from the overlapped transmitting capability set;
and the first sending module is used for sending the selected overlapped sending capability to the base station.
In a sixth aspect, an embodiment of the present invention provides a terminal, including: a transceiver and a processor;
the processor is used for selecting an overlapping transmitting capability from the overlapping transmitting capability set;
the transceiver is configured to transmit the selected overlapping transmission capability to the base station.
In a seventh aspect, an embodiment of the present invention provides a base station, including:
a first receiving module, configured to receive overlapping transmission capabilities sent by a plurality of terminals;
and the determining module is used for determining the overdriving capacity according to the overlapped sending capacity sent by the plurality of terminals.
In an eighth aspect, an embodiment of the present invention provides a base station, including: a transceiver and a processor;
the transceiver is used for receiving overlapping transmission capability sent by a plurality of terminals;
and the processor is used for determining the overdriving capacity according to the overlapped transmission capacity transmitted by the plurality of terminals.
In a ninth aspect, an embodiment of the present invention provides a terminal, including:
the first sending module is used for sending an overdriving capacity switching time set to the base station, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
the determining module is used for determining target switching time information required by switching the current overdriving capacity to the updated overdriving capacity according to the overdriving capacity switching time set if the overdriving capacity switching condition is met;
the switching module is used for completing the switching from the current overdriving capacity to the updated overdriving capacity within the target switching time;
and the second sending module is used for sending the target switching time information to the base station.
In a tenth aspect, an embodiment of the present invention provides a terminal, including: a transceiver and a processor;
the transceiver is configured to send an overdriving capability switching time set to a base station, where the overdriving capability switching time set includes switching time information between any two overdriving capabilities in the overdriving capability set of the terminal;
the processor is used for determining target switching time information required by switching the current overdriving capacity to the updated overdriving capacity according to the overdriving capacity switching time set if the overdriving capacity switching condition is met; completing the switching from the current overdriving capacity to the updated overdriving capacity within the target switching time;
the transceiver is configured to send the target handover time information to the base station.
In an eleventh aspect, an embodiment of the present invention provides a base station, including:
the first receiving module is used for receiving an overdriving capacity switching time set sent by the terminal, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
the second receiving module is used for receiving the target switching time information sent by the terminal;
and the updating module is used for completing the switching of the overlapped transmitting capacity within the target switching time.
In a twelfth aspect, an embodiment of the present invention provides a base station, including: a transceiver and a processor;
the transceiver is used for receiving an overdriving capacity switching time set sent by the terminal, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
the transceiver is further configured to receive target switching time information sent by the terminal;
the processor is configured to complete switching of overlapping transmission capabilities within the target switching time.
In a thirteenth aspect, an embodiment of the present invention provides a terminal, including: a processor, a memory, and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the overlapping transmission capability determination method of the virtual antenna system of the first aspect described above; alternatively, the program when executed by the processor implements the steps of the method for determining the overdraw capability of the virtual antenna system according to the third aspect.
In a fourteenth aspect, an embodiment of the present invention provides a base station, including: a processor, a memory, and a program stored on the memory and executable on the processor, the program when executed by the processor implementing the steps of the method for determining the overdraw capability of the virtual antenna system of the second aspect; alternatively, the program when executed by the processor implements the steps of the overlapping transmission capability determination method of the virtual antenna system of the fourth aspect.
In a fifteenth aspect, an embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the overlapping transmission capability determination method of the virtual antenna system of the first aspect described above; alternatively, the computer program when executed by a processor implements the steps of the method for determining the overdraw capability of the virtual antenna system according to the second aspect; or, the computer program when executed by a processor implements the steps of the method for determining the overdraw capability of the virtual antenna system according to the third aspect; alternatively, the computer program when executed by a processor implements the steps of the method for determining the overdriving capacity of the virtual antenna system according to the fourth aspect.
The embodiment of the invention can improve the spatial multiplexing capability of the system, the establishment of the base station transmission layer is not limited by the actual physical antenna of the terminal, and the whole spatial multiplexing capability and the frequency spectrum efficiency of the system are improved; in the uplink transmission process, the over-sampling capacity of the base station end is established according to the overlapping transmission capacity of the terminal, and the validity of the sampled data is ensured, so that more uplink multi-user stream transmission is realized, and the overall performance of the system is improved; in the downlink transmission process, the terminal hardware capability is considered, so that the virtual antenna system can be switched among different overdriving capabilities, and the balance between the performance and the power consumption is obtained.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
fig. 1 is a schematic diagram of an uplink multi-user transmission model of a virtual antenna system;
FIG. 2 is a schematic diagram of sampling points in Ts required by different terminals;
fig. 3 is a flowchart of a method for determining overlapping transmission capability of a virtual antenna system applied to a terminal according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for determining the overdriving capability of a virtual antenna system applied to a base station according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for determining the overdriving capability of a virtual antenna system applied to a terminal according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for determining overlapping transmission capability of a virtual antenna system applied to a base station according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a method for uplink data over-sampling by a base station according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a switching direction between overdraw capabilities of a terminal according to an embodiment of the present invention;
FIG. 9 is a block diagram of a terminal according to an embodiment of the present invention;
fig. 10 is a schematic hardware structure of a terminal according to an embodiment of the present invention;
FIG. 11 is a block diagram of a base station according to an embodiment of the present invention;
fig. 12 is a schematic hardware structure of a base station according to an embodiment of the present invention;
fig. 13 is a block diagram of a terminal according to another embodiment of the present invention;
fig. 14 is a schematic hardware structure of a terminal according to another embodiment of the present invention;
fig. 15 is a block diagram of a base station according to another embodiment of the present invention;
fig. 16 is a schematic hardware structure of a base station according to another embodiment of the present invention;
fig. 17 is a schematic hardware structure of a terminal according to another embodiment of the present invention;
fig. 18 is a schematic hardware structure of a base station according to another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 3, an embodiment of the present invention provides a method for determining overlapping transmission capability of a virtual antenna system, which is applied to a terminal, and includes:
step 31: selecting an overlapping transmission capability from the overlapping transmission capability set;
this step may also be referred to as initialization of the overlapping transmission capabilities of the terminal.
In the embodiment of the present invention, optionally, the overlapping transmission capability may be an overlapping transmission factor, or may be identification information of the overlapping transmission factor.
N overlapping transmission capabilities may be included in the overlapping transmission capability set K, e.g., k= { K 1 ，K 2 ，……，K N And (2) N is a positive integer greater than or equal to 2, and the terminal selects one overlapped transmission capability from K.
Step 32: and transmitting the selected overlapped transmitting capacity to the base station.
In the embodiment of the present invention, optionally, the terminal sends the selected overlapping sending capability to the base station through PUSCH or PUCCH.
In the embodiment of the invention, in order to avoid invalid sampling of the uplink transmission receiving end, the terminal selects an overlapping transmitting capability from the overlapping transmitting capability set, and transmits the selected overlapping transmitting capability to the base station, so that the base station determines an overdriving capability according to the overlapping transmitting capability of a plurality of terminals, thereby ensuring overdriving and demodulating uplink transmitting data of all terminals and improving system performance.
In the embodiment of the present invention, optionally, selecting an overlapping transmission capability from the overlapping transmission capability set, and then further includes: and sending uplink data according to the selected overlapped sending capacity.
In an embodiment of the present invention, optionally, selecting an overlapping transmission capability from the overlapping transmission capability set further includes: and receiving the overlapped transmission capability set transmitted by the base station. I.e. overlapping sets of transmission capabilities are configured by the base station.
Referring to fig. 4, an embodiment of the present invention provides a method for determining an overdriving capability of a virtual antenna system, which is applied to a base station, and includes:
step 41: receiving overlapping transmission capability transmitted by a plurality of terminals;
wherein, different terminals can send the same overlapped sending capability and also can send different re-falling sending capability.
In the embodiment of the present invention, optionally, the overlapping transmission capability may be an overlapping transmission factor, or may be identification information of the overlapping transmission factor.
The base station receives the overlapped transmission capability sent by a plurality of terminals and can form an overlapped transmission capability set Kp= { K 1 ，K 2 ，……，K M M is a positive integer greater than or equal to 2, K 1 ，K 2 ，……，K M All have different values.
Step 42: and determining the overdriving capacity according to the overlapped sending capacity sent by the plurality of terminals.
In the embodiment of the invention, in order to avoid invalid sampling of the uplink transmission receiving end, the base station determines an overdraw capacity according to the overlapped transmitting capacity of a plurality of terminals, ensures that uplink transmission data of all terminals can be overdraw and demodulated, and improves the system performance.
In the embodiment of the present invention, optionally, the overdriving ability is an overdriving factor.
In the embodiment of the invention, optionally, the overdriving capability is a common multiple of the overlapping transmitting capability of the plurality of terminals, so that uplink transmitting data of all terminals can be ensured to be sampled. Assume that an overlapped transmission capability set kp= { K composed of overlapped transmission capabilities received by a base station 1 ，K 2 ，……，K M The determined overdriving capacity S may be K 1 ，K 2 ，……，K M Is a common multiple of (a).
Further optionally, the overdriving capability is a least common multiple of overlapping transmission capabilities of the plurality of terminals, so as to reduce sampling complexity.
In this embodiment of the present invention, optionally, the determining the overdraw capability according to the overlapping sending capability sent by the plurality of terminals further includes: acquiring overdraw data according to the overdraw capacity and the received uplink data of all the terminals; and demodulating the overdraw data corresponding to each terminal according to the overlapping transmission capability of the terminal.
In the embodiment of the present invention, optionally, demodulating the overdraw data corresponding to the terminal according to the overlapping sending capability of the terminal includes: and selecting sampling data from the overdraw data corresponding to the terminal by taking the overlapping transmission capacity of the terminal as a sampling point interval, and demodulating the sampling data. For example, for an overdriving factor of K i K from all sampling points corresponding to the terminal i Sampling data is selected for sampling point intervals to demodulate.
Referring to fig. 5, an embodiment of the present invention further provides a method for determining an overdriving capability of a virtual antenna system, which is applied to a terminal, and includes:
step 51: sending an overdriving capacity switching time set to a base station, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
in the embodiment of the present invention, optionally, the sending of the over-mining capability switching time set to the base station further includes: initializing the overdraw capability set of the terminal, for example, the overdraw capability set of the terminal is l= { L 1 ，L 2 ，……，L N }. And generating an overdriving capacity switching time set of the terminal aiming at the switching time information between any two overdriving capacities in the overdriving capacity set.
For example, for the oversensing capability set l= { L 1 ，L 2 ，……，L N Any two of the overproduction capacities L i ，L j (i.noteq.j), calculate L i Switch to L j The required switching time is T ij ，T ij Can adopt A ij Indication, A ij For the switching time indication, for example, an index value may be used to save transmission resources, and the generated overdraw capability switching time set a= { a of the terminal 12 ，A 13 …，A 1N ，…，A N(N-1) (wherein A) 12 Refers to the cutting required by the first overdriving ability to switch to the second overdriving ability in the overdriving ability set LTime-of-flight indication information, and the like.
L is the same as i Switch to L j The required switching time is T ij And L is equal to j Switch to L i The required switching time is T ji May be the same or different, i.e., the switching direction between the two overdriving capacities may be different, and the switching time may be different.
Step 52: if the over-mining capability switching condition is met, determining target switching time information required by switching the current over-mining capability to the updated over-mining capability according to the over-mining capability switching time set;
step 53: completing the switching from the current overdriving capacity to the updated overdriving capacity within the target switching time;
step 54: and sending the target switching time information to the base station.
For example, the current overdraw capability of the terminal is K i It is necessary to switch to K j The terminal can inquire the overdriving capacity switching time set to determine K i Switch to K j Required switching time information T ij Terminal reports T ij Corresponding A ij 。
In the embodiment of the invention, in order to avoid continuous increase of power consumption caused by continuous oversampling of the terminal in downlink transmission, the overdriving capacity switching time set is set and the base station is reported, so that the terminal can be switched between different overdriving capacities according to requirements and synchronously switched with the base station, thereby obtaining balance between performance and power consumption.
In the embodiment of the present invention, optionally, a plurality of overdriving capacities in the overdriving capacity set are arranged in order from small to large or from large to small, so as to reduce the complexity of switching. For example, in the overdraw capability set l= { L1, L2, … …, LN }, K 1 ＜K 2 ＜……＜K N 。
In the embodiment of the present invention, optionally, the switching time information is indication information of switching time, so as to reduce resources occupied during transmission.
In the embodiment of the present invention, optionally, the over-acquisition capability switching time set is sent to the base station through PUSCH or PUCCH.
In an embodiment of the present invention, optionally, the over-mining capability switching condition includes at least one of the following:
1) Receiving indication information sent by a base station, wherein the indication information is used for indicating the terminal to perform overdriving capacity switching;
the indication information may be carried through RRC or Downlink Control Information (DCI).
2) The terminal currently has a need to switch over the mining capacity.
In the embodiment of the present invention, optionally, the indication information includes the updated overdriving capability.
In the embodiment of the present invention, optionally, the switching of the overdriving capability that is currently required by the terminal includes at least one of the following:
channel condition variation;
the Power consumption of the terminal exceeds a Threshold value (threshold_power);
the number of retransmissions of the terminal exceeds a Threshold, for example threshold_harq).
Referring to fig. 6, an embodiment of the present invention further provides a method for determining overlapping transmission capability of a virtual antenna system, which is applied to a base station, and is characterized in that the method includes:
step 61: receiving an overdriving capacity switching time set sent by a terminal, wherein the overdriving capacity switching time set comprises switching time information between any two overdriving capacities in the overdriving capacity set of the terminal;
step 62: receiving target switching time information sent by the terminal;
step 63: and completing the switching of the overlapped sending capacity within the target switching time.
Optionally, the delay of each layer of data in the base station is changed.
In an embodiment of the present invention, optionally, the receiving the target switching time information sent by the terminal further includes: and sending indication information to the terminal, wherein the indication information is used for indicating the terminal to switch the overdriving capacity. The indication information may be carried through RRC or Downlink Control Information (DCI).
In the embodiment of the present invention, optionally, the indication information includes updated overdriving capability.
The method of the above embodiment is exemplified below in connection with specific embodiments.
Embodiment one: method for determining uplink over-mining capacity
Taking fig. 1 as an example, there are 3 terminals with single antennas and overlapping transmission capability to transmit different signals, and the overlapping transmission capability is K from low to high 1 ，K 2 ，K 3 。
1) The terminal transmits its own overlapping transmission capability to the base station.
2) The base station obtains the overlapped transmission capability of each terminal and forms an overlapped transmission capability set Kp= { K 1 ，K 2 ，K 3 }, where K 1 ＝2，K 2 ＝3，K 3 ＝4；
3) The base station establishes an overdriving factor s=12 based on the overlapping transmission capability of the plurality of terminals.
4) Each terminal transmits uplink data with respective overlapping transmission capability.
5) The base station overdrives all received uplink data by an overdriving factor s=12 as shown in fig. 7. It can be seen that the sampling points required by all terminals at this time are contained in the sampling dataset of s=12.
6) The base station demodulates the data according to the overlapped transmitting capability of each terminal. For example, for an overlapping transmission capability of K 1 K from all sampling points corresponding to the terminal 1 Sampling data is selected for sampling point intervals to demodulate.
Embodiment two: down-link over-mining capability switching method
The overdriving capacity set of the single antenna terminal comprises 4 overdriving factors, and K is sequentially from low to high 1 ，K 2 ，K 3 ，K 4 ：
Referring to fig. 8, according to the handover request terminal having 4×4-1=12 handover time indications (the handover times of the double-headed arrows are different), as shown in table 1:
TABLE 1
| Handover time indication | Switching time | Remarks |
| A 12 | T 12 | L 1 To L 2 |
| A 21 | T 21 | L 2 To L 1 |
| …… | …… | …… |
| A 34 | T 34 | L 3 To L 4 |
| A 43 | T 43 | L 4 To L 3 |
1) Initial configuration of base station overlapping transmission capability K 1 =1, terminal overdrivingThe factor is initially L 1 =1 (i.e. common MIMO).
2) According to the indication information sent by the base station, or the terminal currently judges that the channel condition is good, the higher data stream transmission is needed, and the over-sampling factor is updated to L 4 When the terminal reports the corresponding switching time indication A 14 The base station and the terminal are according to A 14 Corresponding T 14 Completing the switching, the terminal uses L 4 And (5) carrying out over-mining.
Embodiment III: down-link over-mining capability switching method
As in embodiment two, the overdrive factor L is currently used 4 When the power consumption of the terminal subjected to overdriving exceeds a threshold_Powe, the power consumption is required to be reduced to be lower than L 4 Is the oversensing factor L of (2) 1 Or L 2 Or L 3 。
1) The terminal determines whether the power consumption exceeds a threshold_powe.
2) If the power consumption exceeds the threshold_Powe, reporting L on the PUSCH/PUCCH 4 To L 1 Or L 2 Or L 3 Switch time indication a of (2) 41 Or A 42 Or A 43 。
3) The base station and the terminal are according to A 41 Or A 42 Or A 43 Corresponding T 41 Or T 42 Or T 43 And (5) completing the switching.
Embodiment four: down-link over-mining capability switching method
As in embodiment two, the overdrive factor L is currently used 4 The current retransmission times of the terminal which is subjected to the overdriven exceeds a Threshold value threshold_HARQ and needs to be adjusted down to be lower than L 4 Is the oversensing factor L of (2) 1 Or L 2 Or L 3 。
1) The terminal determines whether the current retransmission number exceeds a threshold_harq.
2) If the current retransmission times exceeds a Threshold value threshold_HARQ, the terminal reports L on the PUSCH/PUCCH 4 To L 1 Or L 2 Or L 3 Switch time indication a of (2) 41 Or A 42 Or A 43 。
3) And the base station and the terminal finish switching according to T41 or T42 or T43 corresponding to A41 or A42 or A43.
By the embodiment of the invention, the space multiplexing capability of the system can be improved, the establishment of the base station transmission layer is not limited by the actual physical antenna of the terminal, and the whole space multiplexing capability and the frequency spectrum efficiency of the system are improved; in the uplink transmission process, the over-sampling capacity of the base station end is established according to the overlapping transmission capacity of the terminal, and the validity of the sampled data is ensured, so that more uplink multi-user stream transmission is realized, and the overall performance of the system is improved; in the downlink transmission process, the terminal hardware capability is considered, so that the virtual antenna system can be switched among different overdriving capabilities, and the balance between the performance and the power consumption is obtained.
Referring to fig. 9, an embodiment of the present invention further provides a terminal 90, including:
a selecting module 91, configured to select an overlapping transmission capability from the overlapping transmission capability set;
a first transmitting module 92, configured to transmit the selected overlapping transmitting capability to the base station.
Optionally, the terminal 90 further includes: and the second sending module is used for sending the uplink data according to the selected overlapped sending capacity.
Optionally, the terminal 90 further includes: and the receiving module is used for receiving the overlapped transmission capability set transmitted by the base station.
Referring to fig. 10, an embodiment of the present invention further provides a terminal 100, including: a transceiver 101 and a processor 102;
the processor 102 is configured to select an overlapping transmission capability from the overlapping transmission capability set;
the transceiver 101 is configured to transmit the selected overlapping transmission capability to a base station.
Optionally, the transceiver 101 is further configured to perform uplink data transmission according to the selected overlapping transmission capability.
Optionally, the transceiver 101 is further configured to receive the overlapping set of transmission capabilities sent by the base station.
Referring to fig. 11, an embodiment of the present invention further provides a base station 110, including:
a first receiving module 111, configured to receive overlapping transmission capabilities transmitted by a plurality of terminals;
and the determining module 112 is configured to determine the overdriving capability according to the overlapping transmission capabilities sent by the plurality of terminals.
Optionally, the overdriving capability is a common multiple of overlapping transmission capabilities of the plurality of terminals.
Optionally, the base station 110 further includes:
the second receiving module is used for obtaining over-mining data according to the over-mining capability and the received uplink data of all the terminals;
and the demodulation module is used for demodulating the overdraw data corresponding to each terminal according to the overlapping transmission capacity of the terminal.
Optionally, the demodulation module is configured to select, from the over-sampled data corresponding to the terminal, the sampled data with the overlapping transmission capability of the terminal as a sampling point interval, and demodulate the sampled data.
Referring to fig. 12, the embodiment of the present invention further provides a base station 120, including a transceiver 121 and a processor 122;
the transceiver 121 is configured to receive overlapping transmission capabilities transmitted by a plurality of terminals;
the processor 122 is configured to determine an overdraw capability according to overlapping transmission capabilities sent by the plurality of terminals.
Optionally, the overdriving capability is a common multiple of overlapping transmission capabilities of the plurality of terminals.
Optionally, the transceiver 121 is further configured to obtain over-mining data according to the over-mining capability and all uplink data of the terminals received by the over-mining device;
the processor 122 is further configured to demodulate, for each of the terminals, the overdraw data corresponding to the terminal according to the overlapping transmission capability of the terminal.
Optionally, the processor 122 is further configured to select, from the over-sampled data corresponding to the terminal, the sampled data with the overlapping transmission capability of the terminal as a sampling point interval, and demodulate the sampled data.
Referring to fig. 13, an embodiment of the present invention further provides a terminal 130, including:
a first sending module 131, configured to send an overdriving capability switching time set to a base station, where the overdriving capability switching time set includes switching time information between any two overdriving capabilities in the overdriving capability set of the terminal;
a determining module 132, configured to determine, according to the set of overdriving capacity switching times, target switching time information required for switching the current overdriving capacity to the updated overdriving capacity if the overdriving capacity switching condition is satisfied;
a switching module 133, configured to complete switching from the current overdriving capability to the updated overdriving capability within the target switching time;
a second sending module 134, configured to send the target handover time information to the base station.
Optionally, the plurality of overdriving ability in the overdriving ability set is arranged in order from small to large or from large to small.
Optionally, the switching time information is indication information of switching time.
Optionally, the first sending module 131 is configured to send the set of over-acquisition capability switching times to the base station through PUSCH or PUCCH.
Optionally, the overdriving ability switching condition includes at least one of:
receiving indication information sent by a base station, wherein the indication information is used for indicating the terminal to perform overdriving capacity switching;
the terminal currently has a need to switch over the mining capacity.
Optionally, the indication information is carried through RRC or downlink control information.
Optionally, the terminal currently has a need to perform the over-mining capability switching includes at least one of the following:
channel condition variation;
the power consumption of the terminal exceeds a threshold value;
and the retransmission times of the terminal exceeds a threshold value.
Referring to fig. 14, the embodiment of the present invention further provides a terminal 140, including a transceiver 141 and a processor 142;
the transceiver 141 is configured to send an overdriving capability switching time set to a base station, where the overdriving capability switching time set includes switching time information between any two overdriving capabilities in the overdriving capability set of the terminal;
the processor 142 is configured to determine, according to the set of overdriving capacity switching times, target switching time information required for switching the current overdriving capacity to the updated overdriving capacity if an overdriving capacity switching condition is satisfied; completing the switching from the current overdriving capacity to the updated overdriving capacity within the target switching time;
the transceiver 141 is configured to send the target handover time information to the base station.
Optionally, the plurality of overdriving ability in the overdriving ability set is arranged in order from small to large or from large to small.
Optionally, the switching time information is indication information of switching time.
Optionally, the transceiver 141 is configured to send the set of over-acquisition capability switching times to the base station through PUSCH or PUCCH.
Optionally, the overdriving ability switching condition includes at least one of:
receiving indication information sent by a base station, wherein the indication information is used for indicating the terminal to perform overdriving capacity switching;
the terminal currently has a need to switch over the mining capacity.
Optionally, the indication information is carried through RRC or downlink control information.
Optionally, the terminal currently has a need to perform the over-mining capability switching includes at least one of the following:
channel condition variation;
the power consumption of the terminal exceeds a threshold value;
and the retransmission times of the terminal exceeds a threshold value.
Referring to fig. 15, an embodiment of the present invention further provides a base station 150, including:
a first receiving module 151, configured to receive an overdriving capability switching time set sent by a terminal, where the overdriving capability switching time set includes switching time information between any two overdriving capabilities in the overdriving capability set of the terminal;
a second receiving module 152, configured to receive target switching time information sent by the terminal;
and an updating module 153, configured to complete switching of the overlapping transmission capability within the target switching time.
Optionally, the base station 150 further includes:
the sending module is used for sending indication information to the terminal, wherein the indication information is used for indicating the terminal to perform the overdriving capacity switching.
Optionally, the indication information is carried through RRC or downlink control information.
Referring to fig. 16, the embodiment of the present invention further provides a base station 160, including a transceiver 161 and a processor 162;
the transceiver 161 is configured to receive an overdriving capability switching time set sent by a terminal, where the overdriving capability switching time set includes switching time information between any two overdriving capabilities in the overdriving capability set of the terminal;
the transceiver 161 is further configured to receive target switching time information sent by the terminal;
the processor 162 is configured to complete switching of overlapping transmission capabilities within the target switching time.
Optionally, the transceiver 161 is further configured to send indication information to the terminal, where the indication information is used to instruct the terminal to perform the over-mining capability handover.
Optionally, the indication information is carried through RRC or downlink control information.
Referring to fig. 17, an embodiment of the present invention further provides a terminal 170, including a processor 171, a memory 172, and a computer program stored in the memory 172 and capable of running on the processor 171, where the computer program when executed by the processor 171 implements the respective procedures of the above embodiment of the method for determining overlapping transmission capability of a virtual antenna system applied to a terminal, or where the computer program when executed by the processor 171 implements the respective procedures of the embodiment of the method for determining overadoption capability of a virtual antenna system applied to a terminal, and can achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.
Referring to fig. 18, an embodiment of the present invention further provides a base station 180, including a processor 181, a memory 182, and a computer program stored in the memory 182 and capable of running on the processor 181, where the computer program when executed by the processor 181 implements the respective procedures of the embodiment of the method for determining the overdriving capability of the virtual antenna system applied to the base station, or where the computer program when executed by the processor 181 implements the respective procedures of the embodiment of the method for determining the overlapping transmitting capability of the virtual antenna system applied to the base station, and the same technical effects can be achieved, and for avoiding repetition, a detailed description is omitted herein.
The embodiment of the present invention further provides a computer readable storage medium, where a computer program is stored, where the computer program when executed by a processor implements each process of the above-mentioned embodiment of the method for determining overlapping transmission capability of a virtual antenna system applied to a terminal, or where the computer program when executed by a processor implements each process of the above-mentioned embodiment of the method for determining overadoption capability of a virtual antenna system applied to a base station, or where the computer program when executed by a processor implements each process of the above-mentioned embodiment of the method for determining overadoption capability of a virtual antenna system applied to a terminal, or where the computer program when executed by a processor implements each process of the above-mentioned embodiment of the method for determining overlapping transmission capability of a virtual antenna system applied to a base station, and can achieve the same technical effect, and is not repeated here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (14)
1. A method for determining overlapping transmission capability of a virtual antenna system, applied to a terminal, comprising:
selecting an overlapping transmission capability from the overlapping transmission capability set; wherein the overlapping transmission capability is an overlapping transmission factor or identification information of the overlapping transmission factor; each transmitting antenna of the terminal can asynchronously transmit a transmitting signal with equal interval time delay of 1/A, wherein A is the overlapping transmitting factor;
and transmitting the selected overlapped transmitting capacity to the base station.
2. The method of claim 1, wherein the selected overlapping transmission capability is transmitted to the base station over PUSCH or PUCCH.
3. The method of claim 1, wherein selecting an overlapping transmission capability from a set of overlapping transmission capabilities, further comprising:
and sending uplink data according to the selected overlapped sending capacity.
4. The method of claim 1, wherein selecting an overlapping transmission capability from a set of overlapping transmission capabilities, further comprising:
and receiving the overlapped transmission capability set transmitted by the base station.
5. The overdriving capacity determining method of the virtual antenna system is applied to a base station and is characterized by comprising the following steps:
receiving overlapping transmission capability transmitted by a plurality of terminals; wherein the overlapping transmission capability is an overlapping transmission factor or identification information of the overlapping transmission factor; each transmitting antenna of the terminal can asynchronously transmit a transmitting signal with equal interval time delay of 1/A, wherein A is the overlapping transmitting factor;
and determining the overdriving capacity according to the overlapped sending capacity sent by the plurality of terminals, wherein the overdriving capacity is a common multiple of the overlapped sending capacity of the plurality of terminals.
6. The method of claim 5, wherein the over-mining capability is determined based on overlapping transmission capabilities transmitted by the plurality of terminals, and further comprising:
acquiring overdraw data according to the overdraw capacity and the received uplink data of all the terminals;
and demodulating the overdraw data corresponding to each terminal according to the overlapping transmission capability of the terminal.
7. The method of claim 6, wherein demodulating the over-adopted data corresponding to the terminal according to the overlapping transmission capability of the terminal comprises:
and selecting sampling data from the overdraw data corresponding to the terminal by taking the overlapping transmission capacity of the terminal as a sampling point interval, and demodulating the sampling data.
8. A terminal, comprising:
the selecting module is used for selecting an overlapped transmitting capability from the overlapped transmitting capability set; wherein the overlapping transmission capability is an overlapping transmission factor or identification information of the overlapping transmission factor; each transmitting antenna of the terminal can asynchronously transmit a transmitting signal with equal interval time delay of 1/A, wherein A is the overlapping transmitting factor;
and the first sending module is used for sending the selected overlapped sending capability to the base station.
9. A terminal, comprising: a transceiver and a processor;
the processor is used for selecting an overlapping transmitting capability from the overlapping transmitting capability set; wherein the overlapping transmission capability is an overlapping transmission factor or identification information of the overlapping transmission factor; each transmitting antenna of the terminal can asynchronously transmit a transmitting signal with equal interval time delay of 1/A, wherein A is the overlapping transmitting factor;
the transceiver is configured to transmit the selected overlapping transmission capability to the base station.
10. A base station, comprising:
a first receiving module, configured to receive overlapping transmission capabilities sent by a plurality of terminals; wherein the overlapping transmission capability is an overlapping transmission factor or identification information of the overlapping transmission factor; each transmitting antenna of the terminal can asynchronously transmit a transmitting signal with equal interval time delay of 1/A, wherein A is the overlapping transmitting factor;
and the determining module is used for determining the overdriving capacity according to the overlapped sending capacity sent by the plurality of terminals, wherein the overdriving capacity is a common multiple of the overlapped sending capacity of the plurality of terminals.
11. A base station, comprising: a transceiver and a processor;
the transceiver is used for receiving overlapping transmission capability sent by a plurality of terminals; wherein the overlapping transmission capability is an overlapping transmission factor or identification information of the overlapping transmission factor; each transmitting antenna of the terminal can asynchronously transmit a transmitting signal with equal interval time delay of 1/A, wherein A is the overlapping transmitting factor;
and the processor is used for determining the overdriving capacity according to the overlapped sending capacity sent by the plurality of terminals, wherein the overdriving capacity is a common multiple of the overlapped sending capacity of the plurality of terminals.
12. A terminal, comprising: a processor, a memory, and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the overlapping transmission capability determination method of a virtual antenna system as claimed in any one of claims 1 to 4.
13. A base station, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method of overdriving capacity determination of a virtual antenna system as claimed in any one of claims 5 to 7.
14. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the overlapping transmission capability determination method of a virtual antenna system according to any one of claims 1 to 4; alternatively, the computer program when executed by a processor implements the steps of the method for determining the overmining capability of a virtual antenna system as claimed in any of claims 5 to 7.
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| CN110495196A (en) * | 2019-06-21 | 2019-11-22 | 小米通讯技术有限公司 | Ability parameter processing method and processing device, communication equipment and storage medium |
| WO2020001452A1 (en) * | 2018-06-27 | 2020-01-02 | 华为技术有限公司 | Method and apparatus for reporting capability |
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| WO2008126516A1 (en) * | 2007-04-10 | 2008-10-23 | Naoki Suehiro | Transmitting method, transmitting device, receiving method, and receiving device |
| US9843938B2 (en) * | 2012-08-31 | 2017-12-12 | Lg Electronics Inc. | Method and apparatus for virtualizing antenna in wireless communication system |
| KR20190119917A (en) * | 2018-04-13 | 2019-10-23 | 삼성전자주식회사 | Method and apparatus for transmission and reception of signal in wireless communication system |
| DE102019125991A1 (en) * | 2018-09-28 | 2020-04-02 | Panasonic Intellectual Property Management Co., Ltd. | Radar device and radar method |
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| WO2020001452A1 (en) * | 2018-06-27 | 2020-01-02 | 华为技术有限公司 | Method and apparatus for reporting capability |
| CN110495196A (en) * | 2019-06-21 | 2019-11-22 | 小米通讯技术有限公司 | Ability parameter processing method and processing device, communication equipment and storage medium |
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