CN109802711B - Method for determining uplink multi-antenna transmission codebook, network equipment and terminal equipment - Google Patents
Method for determining uplink multi-antenna transmission codebook, network equipment and terminal equipment Download PDFInfo
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Abstract
The invention discloses a method for determining an uplink multi-antenna transmission codebook, network equipment and terminal equipment, wherein the method comprises the following steps: receiving terminal capability information sent by terminal equipment, wherein the terminal capability information comprises antenna port information which is used for indicating the coherence condition between antenna ports of the terminal equipment; determining a transmission codebook of the terminal equipment according to the antenna port information and the data stream number of the terminal equipment; and sending the indication information of the transmission codebook to the terminal equipment. According to the invention, the transmission codebook of the terminal equipment is determined based on the antenna port information in the terminal capability information and the data stream number of the terminal equipment, so that the coherence condition between the codebook determined for the terminal equipment and the antenna port of the terminal equipment is matched, and the system performance is improved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, a network device, and a terminal device for determining an uplink multi-antenna transmission codebook.
Background
Codebook-based multi-stream transmission under Cyclic Prefix (CP) Orthogonal Frequency Division Multiplexing (OFDM) waveforms will be employed in future communication systems. For terminal equipment supporting multiple antennas, the process is limited by different process designs of manufacturers, the antenna placement positions are different, and the coherence conditions between antenna ports of the terminal equipment are different.
The performance of the communication system can be affected in some scenes by adopting the current determination method of the transmission codebook.
Disclosure of Invention
The embodiment of the invention aims to provide a method for determining an uplink multi-antenna transmission codebook, terminal equipment and network side equipment, so as to solve the problem that the performance of a communication system is influenced in some scenes by the conventional method for determining the transmission codebook.
In a first aspect, a method for determining an uplink multi-antenna transmission codebook is provided, where the method includes:
receiving terminal capability information sent by terminal equipment, wherein the terminal capability information comprises antenna port information which is used for indicating the coherence condition between antenna ports of the terminal equipment;
determining a transmission codebook of the terminal equipment according to the antenna port information and the data stream number of the terminal equipment;
and sending the indication information of the transmission codebook to the terminal equipment.
In a second aspect, a method for determining an uplink multi-antenna transmission codebook is provided, where the method includes:
sending terminal capability information, wherein the terminal capability information comprises antenna port information which is used for indicating the coherence condition between antenna ports of the terminal equipment;
and receiving indication information of a transmission codebook, wherein the transmission codebook is determined by network equipment according to the antenna port information and the data stream number of the terminal equipment.
In a third aspect, a network device is provided, which includes:
the terminal comprises a receiving and sending module, a processing module and a processing module, wherein the receiving and sending module is used for receiving terminal capability information sent by terminal equipment, the terminal capability information comprises antenna port information, and the antenna port information is used for indicating the coherence condition between antenna ports of the terminal equipment;
the processing module is used for determining a transmission codebook of the terminal equipment according to the antenna port information and the data stream number of the terminal equipment;
the transceiver module is further configured to send indication information of a transmission codebook to the terminal device.
In a fourth aspect, a terminal device is provided, which includes:
a sending module, configured to send terminal capability information, where the terminal capability information includes antenna port information, and the antenna port information is used to indicate a coherence condition between antenna ports of the terminal device;
and the receiving module is used for receiving the indication information of the transmission codebook, and the transmission codebook is determined by the network equipment according to the antenna port information and the data stream number of the terminal equipment.
In a fifth aspect, a network device is provided, where the terminal device includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and the computer program, when executed by the processor, implements the steps of the method for determining an uplink multi-antenna transmission codebook according to the first aspect.
In a sixth aspect, a terminal device is provided, which includes a processor, a memory and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the method for determining an uplink multi-antenna transmission codebook according to the second aspect are implemented.
In a seventh aspect, a computer-readable storage medium is provided, wherein a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the method for determining an uplink multi-antenna transmission codebook according to the second aspect.
In an eighth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores thereon a computer program, and the computer program, when executed by a processor, implements the steps of the method for determining an uplink multi-antenna transmission codebook according to the second aspect.
In the embodiment of the invention, the transmission codebook of the terminal equipment is determined based on the antenna port information in the terminal capability information and the data stream number of the terminal equipment, so that the coherence condition between the codebook determined for the terminal equipment and the antenna port of the terminal equipment is matched, and the system performance is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart of a method for determining an uplink multi-antenna transmission codebook according to an embodiment of the present invention.
Fig. 2 is a schematic flow chart of a method of determining an uplink multi-antenna transmission codebook according to another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a network device according to another embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention can be applied to various communication systems, such as: global System for Mobile communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE)/enhanced Long Term Evolution (LTE-a), nr (new Radio), and the like.
A User Equipment (UE), which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile User Equipment (UE), and the like, may communicate with one or more core networks via a Radio Access Network (RAN, Radio Access Network, for example), and the User Equipment may be a Mobile Terminal, such as a Mobile phone (or referred to as a "cellular" phone) and a computer having a Mobile Terminal, such as a portable, pocket, handheld, computer-included, or vehicle-mounted Mobile device, and may exchange languages and/or data with the Radio Access Network.
The Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved node b (eNB or e-NodeB) and a 5G Base Station (gNB) in LTE.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for determining an uplink multi-antenna transmission codebook according to an embodiment of the present invention. The method of fig. 1 is applied to a network device, and is performed by the network device. The method can comprise the following steps:
s110, receiving terminal capability information sent by a terminal device, wherein the terminal capability information includes antenna port information, and the antenna port information is used for indicating a coherence condition between antenna ports of the terminal device.
For example, the antenna port information indicates whether the antenna of the terminal device is fully coherent (Full Coherence), partially coherent (Partial Coherence), or completely incoherent (Non-Coherence).
And S120, determining a transmission codebook of the terminal equipment according to the antenna port information and the data stream number of the terminal equipment.
Optionally, step S120 may be specifically implemented as:
and determining a transmission codebook of the terminal equipment according to the antenna port information, the data stream number of the terminal equipment and the antenna port mapped by the data stream of the terminal equipment.
Optionally, in some embodiments, the transmission codebook comprises an antenna selection codebook, or the transmission codebook is determined based on the antenna selection codebook. Correspondingly, the network device determines the antenna selection codebook according to the antenna port information and the data stream number of the terminal device.
For example, if the antenna port information indicates that the antenna of the terminal device is completely incoherent, the antenna selection codebook is a transmission codebook. The transmission codebook is a codebook determined based on the antenna codebook if the antenna of the terminal device is partially coherent. For example, the antennas of the terminal device are completely irrelevant, and if the number of data streams of the terminal device is 1, the transmission codebook is one of the following transmission codebooks:
if the antenna of the terminal device is completely irrelevant and the number of data streams of the terminal device is 2, the transmission codebook is one of the following transmission codebooks:
if the antenna of the terminal device is completely irrelevant and the number of data streams of the terminal device is 3, the transmission codebook is one of the following transmission codebooks:
if the antennas of the terminal device are completely irrelevant and the number of data streams of the terminal device is 3, the transmission codebook is:
optionally, in some embodiments, the antenna ports of the terminal device are partially coherent; wherein S120 may be specifically implemented as: and determining the antenna selection codebook according to the number of the data streams of the terminal equipment and the antenna port mapped by the data streams.
Further, the transmission codebook comprises an antenna selection codebook and a phase matching codebook, or the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook. In this case, the method may include: and determining a phase matching codebook according to the phase of the transmission channel corresponding to the antenna port mapped by the data stream.
Optionally, in some embodiments, when the transmission codebook includes an antenna selection codebook and a phase matching codebook, the indication information includes first indication information indicating the antenna selection codebook and second indication information indicating the phase matching codebook. This can be understood as: the network device may indicate the transmission codebook twice, where the first time indicates the antenna selection codebook through the first indication information, and the second time indicates the phase matching codebook through the second indication information.
Optionally, in some embodiments, the transmission codebook is determined based on an antenna selection codebook and a phase matching codebook, and the method further includes: a transmission codebook is determined based on the antenna selection codebook and the phase matching codebook. In this case, if the number of data streams of the terminal device is 1 and 1 data stream is mapped to 2 coherent antenna ports, a codebook is determined for selecting the antenna from the following codebooks:
and determining a codebook as the phase matching codebook from the following codebooks:
and determining a transmission codebook according to the determined antenna selection codebook and the phase matching codebook, wherein the terminal antenna port coherence relationship is supposed to be specified in advance: when partially coherent, assuming port1 and port2 are coherent and port2 and port4 are coherent, a codebook is selected from Table 1 codebook indices 0-7. When completely incoherent, the 4 ports are uncorrelated each. The codebook is selected from table 1 codebook index 8-11. After the network device determines the transmission codebook of the terminal device, the indication information sent to the terminal device indicates an index value, and the terminal device can determine the transmission codebook according to the specific index value and table 1. It should be noted that, in the embodiment of the present invention, the number of data streams may be understood as the number of transport layers (layers).
TABLE 1
Optionally, in some embodiments, the transmission codebook is determined based on an antenna selection codebook and a phase matching codebook, and the method further includes: a transmission codebook is determined based on the antenna selection codebook and the phase matching codebook. In this case, if the number of data streams of the terminal device is 2 and 2 data streams are mapped to the same coherent antenna port, determining a codebook from the following codebooks to select a codebook for the antenna:
and determining a codebook as the phase matching codebook from the following codebooks:
and determining a transmission codebook according to the determined antenna selection codebook and the phase matching codebook, wherein the terminal antenna port coherence relationship is supposed to be specified in advance: when partially coherent, assuming port1 and port2 are coherent and port2 and port4 are coherent, a codebook is selected from Table 2 codebook indices 0-19. When completely incoherent, the 4 ports are uncorrelated each and a codebook is selected from Table 2 codebook index numbers 20-25. After the network device determines the transmission codebook of the terminal device, the indication information sent to the terminal device indicates the index value, and the terminal device can determine the transmission codebook according to the specific index value and the table 2.
TABLE 2
Optionally, in some embodiments, the transmission codebook is determined based on an antenna selection codebook and a phase matching codebook, and the method further includes: a transmission codebook is determined based on the antenna selection codebook and the phase matching codebook. In this case, if the number of data streams of the terminal device is 2 and 2 data streams are mapped to different coherent antenna ports, one codebook is determined from the following codebooks for selecting the codebook for the antenna:
the determining a phase matching codebook according to a phase of a transmission channel corresponding to an antenna port to which a data stream is mapped includes:
determining that the phase matching codebook comprises a first phase matching codebook and a second phase matching codebook, wherein the first phase matching codebook is determined according to the phase of the transmission channel corresponding to the coherent antenna port to which the first data stream of the 2 data streams is mapped, the second phase matching codebook is determined according to the phase of the transmission channel corresponding to the antenna port to which the second data stream of the 2 data streams is mapped, and one codebook is respectively determined from the following codebooks as the first phase matching codebook and the second phase matching codebook:
and determining a transmission codebook according to the determined antenna selection codebook and the determined phase matching codebook, where the determined transmission codebook may be the codebook shown in table 2, where table 2 gives a corresponding relationship between a codebook index and a codebook, and after the network device determines the transmission codebook of the terminal device, the network device sends an indication information indicating index value to the terminal device, and the terminal device may determine the transmission codebook according to the specific index value and table 2.
Optionally, in some embodiments, the transmission codebook is determined based on an antenna selection codebook and a phase matching codebook, and the method further includes: a transmission codebook is determined based on the antenna selection codebook and the phase matching codebook. In this case, if the number of data streams of the terminal device is 3, and the first data stream and the second data stream of the 3 data streams are mapped to the same coherent antenna port, and the third data stream of the 3 data streams is mapped to an antenna port that is not coherent to the antenna port to which the first data stream and the second data stream are mapped, a codebook is determined for selecting a codebook for the antenna from the following codebooks:
the method comprises the following steps of determining a phase matching codebook according to a phase of a transmission channel corresponding to an antenna port to which a data stream is mapped, and specifically realizing that:
determining that the phase matching codebook comprises a first phase matching codebook and a second phase matching codebook, wherein the first phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the first data stream and the second data stream are mapped, and the second phase matching codebook is determined according to the phases of the transmission channels corresponding to the antenna ports to which the third data stream is mapped, wherein the first phase matching codebook is one of the following phase matching codebooks:
the second phase matching codebook is one of the following phase matching codebooks:
and determining a transmission codebook according to the determined antenna selection codebook and the phase matching codebook, wherein the terminal antenna port coherence relationship is supposed to be specified in advance: when partially coherent, assuming port1 and port2 are coherent and port2 and port4 are coherent, a codebook is selected from Table 3 codebook indices 0-15. When completely incoherent, the 4 ports are uncorrelated each and a codebook is selected from Table 3 codebook index numbers 16-19. After the network device determines the transmission codebook of the terminal device, the indication information sent to the terminal device indicates the index value, and the terminal device can determine the transmission codebook according to the specific index value and table 3.
TABLE 3
Optionally, in some embodiments, the transmission codebook is determined based on an antenna selection codebook and a phase matching codebook, and the method further includes: a transmission codebook is determined based on the antenna selection codebook and the phase matching codebook. In this case, if the number of data streams of the terminal device is 4, and a first data stream and a second data stream of the 4 data streams are mapped to the same coherent antenna port, a third data stream and a fourth data stream of the 4 data streams are mapped to the same coherent antenna port, and the antenna ports to which the third data stream and the fourth data stream are mapped are not coherent with the antenna ports to which the first data stream and the second data stream are mapped, determining a codebook for selecting the codebook for the antenna from the following codebooks:
wherein, according to the phase of the transmission channel corresponding to the antenna port to which the data stream is mapped, the phase matching codebook is determined, which can be specifically realized as:
determining that the phase matching codebook comprises a first phase matching codebook and a second phase matching codebook, the first phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the first data stream and the second data stream are mapped, the second phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the third data stream and the fourth data stream are mapped, wherein the first phase matching codebook and the second phase matching codebook are one of the following phase matching codebooks:
and determining a transmission codebook according to the determined antenna selection codebook and the phase matching codebook, wherein the terminal antenna port coherence relationship is supposed to be specified in advance: when partially coherent, assuming port1 and port2 are coherent and port2 and port4 are coherent, a codebook is selected from Table 4 codebook indices 0-3. When completely incoherent, the 4 ports are uncorrelated each and a codebook is selected from codebook index 4 of Table 4. After the network device determines the transmission codebook of the terminal device, the indication information sent to the terminal device indicates the index value, and the terminal device can determine the transmission codebook according to the specific index value and table 4.
TABLE 4
Optionally, in some embodiments, the antenna port of the terminal device is fully coherent, and when the number of data streams to be cut by the terminal device is less than or equal to 4, the network device determines that the transmission codebook corresponding to the terminal device is a codebook generated based on Householder transformation. It should be noted that, when the antenna ports of the terminal device are fully coherent, the codebook generated based on the Householder transform is only one way of generating the transmission codebook, and the transmission codebook may also be determined based on other ways.
It should be understood that, in the embodiment of the present invention, the number of data streams of the terminal device and the antenna port to which the data stream of the terminal device is mapped may be collectively referred to as data stream information of the terminal device.
S130, sending the indication information of the transmission codebook to the terminal equipment.
For example, assume that a terminal device has 4 antenna ports, identified in order as port1, port2, port3, and port 4. When a terminal supports partial coherence, port1 and port3 are assumed to be coherent; port2 and port4 are coherent; assuming that the data stream of the terminal device is 3, the antenna selection codebook may only be:
When the 2 data streams are mapped to the same coherent antenna port, the phase matching codebook is only possible:
In the embodiment of the invention, the transmission codebook of the terminal equipment is determined based on the antenna port information in the terminal capability information and the data stream number of the terminal equipment, so that the coherence condition between the codebook determined for the terminal equipment and the antenna port of the terminal equipment is matched, and the system performance is improved.
Fig. 2 is a method for determining an uplink multi-antenna transmission codebook according to another embodiment of the present invention. The method of fig. 2 is applicable to a terminal device, and is performed by the terminal device. The method can comprise the following steps:
s210, sending terminal capability information, wherein the terminal capability information comprises antenna port information, and the antenna port information is used for indicating the coherence condition between antenna ports of the terminal equipment;
s220, receiving indication information of a transmission codebook, wherein the transmission codebook is determined by network equipment according to the antenna port information and the data stream number of the terminal equipment.
Optionally, as an embodiment, the transmission codebook includes an antenna selection codebook, or is determined based on the antenna selection codebook at the time of the transmission codebook,
the antenna selection codebook is determined by the network device according to the antenna port information and the data stream number of the terminal device.
Optionally, as an embodiment, the antenna ports of the terminal device are partially coherent;
the antenna selection codebook is determined according to the number of data streams of the terminal device and the antenna port to which the data streams are mapped.
Optionally, as an embodiment, the transmission codebook comprises an antenna selection codebook and a phase matching codebook, or the transmission codebook is generated based on the antenna selection codebook and the phase matching codebook,
wherein, the phase matching codebook is determined according to the phase of the transmission channel corresponding to the antenna port mapped by the data stream number.
Optionally, as an embodiment, when the transmission codebook includes an antenna selection codebook and a phase matching codebook, the indication information includes first indication information indicating the antenna selection codebook and second indication information indicating the phase matching codebook.
In the embodiment of the invention, the terminal equipment sends the terminal capability information to the network equipment, the terminal capability information comprises the antenna port information, and the antenna port information is used for indicating the coherence condition between the antenna ports of the terminal equipment, so that the network equipment determines the transmission codebook of the terminal equipment based on the antenna port information and the data stream number of the terminal equipment, and the coherence condition between the codebook determined for the terminal equipment and the antenna port of the terminal equipment is matched, thereby improving the system performance.
The method for determining the uplink multi-antenna transmission codebook according to the embodiment of the present invention is described in detail above with reference to fig. 1 and 2, and the network device according to the embodiment of the present invention will be described in detail below with reference to fig. 3.
Fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in fig. 3, the network device 30 includes:
a transceiver module 31, configured to receive terminal capability information sent by a terminal device, where the terminal capability information includes antenna port information, and the antenna port information is used to indicate a coherence condition between antenna ports of the terminal device;
a processing module 32, configured to determine a transmission codebook of the terminal device according to the antenna port information and the number of data streams of the terminal device;
the transceiver module 31 is further configured to send instruction information of a transmission codebook to the terminal device.
Optionally, as an embodiment, the transmission codebook includes an antenna selection codebook, or the transmission codebook is determined based on the antenna selection codebook;
the processing module 32 is specifically configured to: and determining the antenna selection codebook according to the antenna port information and the data stream number of the terminal equipment.
Optionally, as an embodiment, the antenna port information indicates that an antenna port of the terminal device is partially coherent;
wherein, the processing module 32 is specifically configured to: and determining the antenna selection codebook according to the number of the data streams of the terminal equipment and the antenna port mapped by the data streams.
Optionally, as an embodiment, the processing module 32 is further configured to: determining a phase matching codebook according to the phase of a transmission channel corresponding to the antenna port mapped by the data stream;
wherein the transmission codebook comprises the antenna selection codebook and the phase matching codebook, or the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook.
Optionally, as an embodiment, when the transmission codebook includes the antenna selection codebook and the phase matching codebook, the indication information includes first indication information for indicating the antenna selection codebook and second indication information for indicating the phase matching codebook.
Optionally, as an embodiment, when the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook, the processing module 32 is further configured to:
determining the transmission codebook based on the antenna selection codebook and the phase matching codebook.
Optionally, as an embodiment, the processing module 32 is specifically configured to:
when the number of data streams of the terminal device is 1 and 1 data stream is mapped to 2 coherent antenna ports, determining a codebook from the following codebooks to select a codebook for the antenna:
determining a codebook as the phase matching codebook from the following codebooks:
optionally, as an embodiment, the processing module 32 is specifically configured to:
when the number of data streams of the terminal device is 2 and 2 data streams are mapped to the same coherent antenna port, determining a codebook from the following codebooks to select a codebook for the antenna:
determining a codebook from among the following codebooks to determine the phase matching codebook:
optionally, as an embodiment, the processing module 32 is specifically configured to:
when the number of data streams of the terminal device is 2 and 2 data streams are mapped to different coherent antenna ports, determining a codebook from the following codebooks to select a codebook for the antenna:
determining the phase matching codebook to include a first phase matching codebook determined according to a phase of a transmission channel corresponding to a coherent antenna port to which a first data stream of the 2 data streams is mapped and a second phase matching codebook determined according to a phase of a transmission channel corresponding to an antenna port to which a second data stream of the 2 data streams is mapped, wherein one codebook is determined as the first phase matching codebook and the second phase matching codebook from the following codebooks:
optionally, as an embodiment, the processing module 32 is specifically configured to:
when the number of data streams of the terminal device is 3, and a first data stream and a second data stream of the 3 data streams are mapped to the same coherent antenna ports, and a third data stream of the 3 data streams is mapped to an antenna port that is not coherent to the antenna port to which the first data stream and the second data stream are mapped, determining a codebook from the following codebooks to select a codebook for the antenna:
determining the phase matching codebook to include a first phase matching codebook and a second phase matching codebook, where the first phase matching codebook is determined according to the phases of transmission channels corresponding to coherent antenna ports to which the first data stream and the second data stream are mapped, and the second phase matching codebook is determined according to the phases of transmission channels corresponding to antenna ports to which a third data stream is mapped, where the first phase matching codebook is one of the following phase matching codebooks:
the second phase matching codebook is one of the following phase matching codebooks:
optionally, as an embodiment, the processing module 32 is specifically configured to:
when the number of data streams of the terminal device is 4, and a first data stream and a second data stream of the 4 data streams are mapped to the same coherent antenna ports, a third data stream and a fourth data stream of the 4 data streams are mapped to the same coherent antenna ports, and the antenna ports to which the third data stream and the fourth data stream are mapped are not coherent with the antenna ports to which the first data stream and the second data stream are mapped, determining a codebook from the following codebooks to select a codebook for the antenna:
determining the phase matching codebook comprises a first phase matching codebook and a second phase matching codebook, wherein the first phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the first data stream and the second data stream are mapped, the second phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the third data stream and the fourth data stream are mapped, and the first phase matching codebook and the second phase matching codebook are one of the following phase matching codebooks:
optionally, as an embodiment, the processing module 32 is specifically configured to:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 1, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 2, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 3, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 4, the transmission codebook is:
the terminal device provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of fig. 1, and is not described herein again to avoid repetition.
In the embodiment of the invention, the transmission codebook of the terminal equipment is determined based on the antenna port information in the terminal capability information and the data stream number of the terminal equipment, so that the coherence condition between the codebook determined for the terminal equipment and the antenna port of the terminal equipment is matched, and the system performance is improved.
Fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 4, the terminal device 40 includes:
a sending module 41, configured to send terminal capability information, where the terminal capability information includes antenna port information, and the antenna port information is used to indicate a coherence condition between antenna ports of the terminal device;
a receiving module 42, configured to receive indication information of a transmission codebook, where the transmission codebook is determined by a network device according to the antenna port information and the number of data streams of the terminal device.
Optionally, as an embodiment, the transmission codebook includes an antenna selection codebook, or is determined based on the antenna selection codebook when the transmission codebook is determined,
and the antenna selection codebook is determined by the network equipment according to the antenna port information and the data stream number of the terminal equipment.
Optionally, as an embodiment, the antenna ports of the terminal device are partially coherent;
the antenna selection codebook is determined according to the number of data streams of the terminal device and the antenna port to which the data streams are mapped.
Optionally, as an embodiment, the transmission codebook comprises an antenna selection codebook and a phase matching codebook, or the transmission codebook is generated based on the antenna selection codebook and the phase matching codebook,
and determining the phase matching codebook according to the phase of the transmission channel corresponding to the antenna port mapped by the data stream number.
Optionally, as an embodiment, when the transmission codebook includes an antenna selection codebook and a phase matching codebook, the indication information includes first indication information for indicating the antenna selection codebook and second indication information for indicating the phase matching codebook.
The terminal device provided in the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiment of fig. 2, and is not described here again to avoid repetition.
The terminal device of the embodiment of the invention sends the terminal capability information to the network device, the terminal capability information comprises the antenna port information, and the antenna port information is used for indicating the coherence condition between the antenna ports of the terminal device, so that the network device determines the transmission codebook of the terminal device based on the antenna port information and the data stream number of the terminal device, and the coherence condition between the codebook determined for the terminal device and the antenna port of the terminal device is matched, thereby improving the system performance.
Fig. 5 shows a schematic structural diagram of a network device according to another embodiment of the present invention. As shown in fig. 5, network device 100 includes a processor 110, a transceiver 120, a memory 130, a user interface 504, and a bus interface. Wherein:
in this embodiment of the present invention, the network device 100 further includes: a computer program stored in the memory 130 and capable of running on the processor 110, where the computer program, when executed by the processor 110, implements each process in the method shown in fig. 1, and can achieve the same technical effect, and is not described herein again to avoid repetition.
In FIG. 5, the bus architecture may include any number of interconnected buses and bridges, with various circuits of one or more processors, represented in particular by processor 110, and memory, represented by memory 130, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 120 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 110 is responsible for managing the bus architecture and general processing, and the memory 130 may store data used by the processor 110 in performing operations.
Fig. 6 shows a schematic structural diagram of a terminal device according to another embodiment of the present invention, and as shown in fig. 6, the terminal device 200 includes: at least one processor 210, memory 220, at least one network interface 230, and a user interface 240. The various components in the receiving end device 200 are coupled together by a bus system 250. It will be appreciated that the bus system 250 is used to enable communications among the components. The bus system 250 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 250 in fig. 6.
The user interface 240 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It will be appreciated that memory 220 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration, and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous SDRAM (ESDRAM), Sync Link DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 220 of the subject systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 220 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 221 and application programs 222.
The operating system 221 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 222 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the invention may be included in the application 222.
In this embodiment of the present invention, the terminal device 200 further includes: a computer program stored in the memory 220 and capable of running on the processor 210, wherein when being executed by the processor 210, the computer program implements each process of the method for determining an uplink multi-antenna transmission codebook shown in fig. 2, and can achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
The method disclosed in the above embodiments of the present invention may be applied to the processor 210, or implemented by the processor 210. The processor 210 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 210. The Processor 210 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 220, and the processor 210 reads the information in the memory 220 and performs the steps of the above method in combination with the hardware thereof. In particular, the computer-readable storage medium has stored thereon a computer program, which when executed by the processor 210 implements the steps of the method embodiment as described above in fig. 2.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
An embodiment of the present application further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method for determining an uplink multi-antenna transmission codebook, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an 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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (38)
1. A method for determining an uplink multi-antenna transmission codebook is applied to network equipment, and is characterized by comprising the following steps:
receiving terminal capability information sent by terminal equipment, wherein the terminal capability information comprises antenna port information, the antenna port information is used for indicating the coherence condition between antenna ports of the terminal equipment, and the coherence condition between the antenna ports comprises one of complete incoherence of the antenna ports, partial coherence of the antenna ports and coherence of the antenna ports;
determining a transmission codebook of the terminal equipment according to the antenna port information and the data stream number of the terminal equipment;
and sending the indication information of the transmission codebook to the terminal equipment.
2. The method of claim 1, wherein the transmission codebook comprises an antenna selection codebook, or wherein the transmission codebook is determined based on the antenna selection codebook;
wherein, the determining the transmission codebook of the terminal device according to the antenna port information and the data stream number of the terminal device includes:
and determining the antenna selection codebook according to the antenna port information and the data stream number of the terminal equipment.
3. The method of claim 2, wherein the antenna port information indicates that the antenna ports of the terminal devices are partially coherent;
determining the antenna selection codebook according to the antenna port information and the data stream number of the terminal device, including:
and determining the antenna selection codebook according to the number of the data streams of the terminal equipment and the antenna port mapped by the data streams.
4. The method of claim 3, further comprising:
determining a phase matching codebook according to the phase of a transmission channel corresponding to the antenna port mapped by the data stream;
wherein the transmission codebook comprises the antenna selection codebook and the phase matching codebook, or the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook.
5. The method of claim 4,
when the transmission codebook comprises the antenna selection codebook and the phase matching codebook, the indication information comprises first indication information for indicating the antenna selection codebook and second indication information for indicating the phase matching codebook.
6. The method of claim 4,
when the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook, the method further comprises:
determining the transmission codebook based on the antenna selection codebook and the phase matching codebook.
7. The method according to any of claims 4-6, wherein the determining the antenna selection codebook according to the number of data streams of the terminal device and the antenna port to which the data stream is mapped comprises:
when the number of data streams of the terminal device is 1 and 1 data stream is mapped to 2 coherent antenna ports, determining a codebook from the following codebooks to select a codebook for the antenna:
wherein, the determining a phase matching codebook according to the phase of the transmission channel corresponding to the antenna port to which the data stream is mapped includes:
determining a codebook as the phase matching codebook from the following codebooks:
8. the method according to any of claims 4-6, wherein the determining the antenna selection codebook according to the number of data streams of the terminal device and the antenna port to which the data stream is mapped comprises:
when the number of data streams of the terminal device is 2 and 2 data streams are mapped to the same coherent antenna port, determining a codebook from the following codebooks to select a codebook for the antenna:
wherein, the determining a phase matching codebook according to the phase of the transmission channel corresponding to the antenna port to which the data stream is mapped includes:
determining a codebook from among the following codebooks to determine the phase matching codebook:
9. the method according to any of claims 4-6, wherein the determining the antenna selection codebook according to the number of data streams of the terminal device and the antenna port to which the data stream is mapped comprises:
when the number of data streams of the terminal device is 2 and 2 data streams are mapped to different coherent antenna ports, determining a codebook from the following codebooks to select a codebook for the antenna:
wherein, the determining a phase matching codebook according to the phase of the transmission channel corresponding to the antenna port to which the data stream is mapped includes:
determining the phase matching codebook to include a first phase matching codebook determined according to a phase of a transmission channel corresponding to a coherent antenna port to which a first data stream of the 2 data streams is mapped and a second phase matching codebook determined according to a phase of a transmission channel corresponding to an antenna port to which a second data stream of the 2 data streams is mapped, wherein one codebook is determined as the first phase matching codebook and the second phase matching codebook from the following codebooks:
10. the method according to any of claims 4-6, wherein the determining the antenna selection codebook according to the number of data streams of the terminal device and the antenna port to which the number of data streams is mapped comprises:
when the number of data streams of the terminal device is 3, and a first data stream and a second data stream of the 3 data streams are mapped to the same coherent antenna ports, and a third data stream of the 3 data streams is mapped to an antenna port that is not coherent to the antenna port to which the first data stream and the second data stream are mapped, determining a codebook from the following codebooks to select a codebook for the antenna:
wherein, the determining a phase matching codebook according to the phase of the transmission channel corresponding to the antenna port to which the data stream is mapped includes:
determining the phase matching codebook to include a first phase matching codebook and a second phase matching codebook, where the first phase matching codebook is determined according to the phases of transmission channels corresponding to coherent antenna ports to which the first data stream and the second data stream are mapped, and the second phase matching codebook is determined according to the phases of transmission channels corresponding to antenna ports to which a third data stream is mapped, where the first phase matching codebook is one of the following phase matching codebooks:
the second phase matching codebook is one of the following phase matching codebooks:
11. the method according to any of claims 4-6, wherein the determining the antenna selection codebook according to the number of data streams of the terminal device and the antenna port to which the number of data streams is mapped comprises:
when the number of data streams of the terminal device is 4, and a first data stream and a second data stream of the 4 data streams are mapped to the same coherent antenna ports, a third data stream and a fourth data stream of the 4 data streams are mapped to the same coherent antenna ports, and the antenna ports to which the third data stream and the fourth data stream are mapped are not coherent with the antenna ports to which the first data stream and the second data stream are mapped, determining a codebook from the following codebooks to select a codebook for the antenna:
wherein, the determining a phase matching codebook according to the phase of the transmission channel corresponding to the antenna port to which the data stream is mapped includes:
determining the phase matching codebook comprises a first phase matching codebook and a second phase matching codebook, wherein the first phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the first data stream and the second data stream are mapped, the second phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the third data stream and the fourth data stream are mapped, and the first phase matching codebook and the second phase matching codebook are one of the following phase matching codebooks:
12. the method of claim 1, wherein the determining the transmission codebook of the terminal device according to the antenna port information and the number of data streams of the terminal device comprises:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 1, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 2, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 3, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 4, the transmission codebook is:
13. a method for determining an uplink multi-antenna transmission codebook is applied to terminal equipment, and is characterized by comprising the following steps:
sending terminal capability information, wherein the terminal capability information comprises antenna port information, the antenna port information is used for indicating the coherence condition among the antenna ports of the terminal equipment, and the coherence condition among the antenna ports comprises one of complete incoherence of the antenna ports, partial coherence of the antenna ports and coherence of the antenna ports;
and receiving indication information of a transmission codebook, wherein the transmission codebook is determined by network equipment according to the antenna port information and the data stream number of the terminal equipment.
14. The method of claim 13,
the transmission codebook comprises an antenna selection codebook, or the transmission codebook is determined based on an antenna selection codebook,
and the antenna selection codebook is determined by the network equipment according to the antenna port information and the data stream number of the terminal equipment.
15. The method of claim 14, wherein the antenna ports of the terminal devices are partially coherent;
the antenna selection codebook is determined according to the number of data streams of the terminal device and the antenna port to which the data streams are mapped.
16. The method of claim 15,
the transmission codebook comprises an antenna selection codebook and a phase matching codebook, or the transmission codebook is generated based on the antenna selection codebook and the phase matching codebook,
and determining the phase matching codebook according to the phase of the transmission channel corresponding to the antenna port mapped by the data stream number.
17. The method of claim 16,
when the transmission codebook comprises an antenna selection codebook and a phase matching codebook, the indication information comprises first indication information for indicating the antenna selection codebook and second indication information for indicating the phase matching codebook.
18. A network device, comprising:
the terminal device comprises a receiving and sending module, a processing module and a processing module, wherein the receiving and sending module is used for receiving terminal capability information sent by terminal equipment, the terminal capability information comprises antenna port information, the antenna port information is used for indicating the coherence condition among antenna ports of the terminal equipment, and the coherence condition among the antenna ports comprises one of complete incoherence of the antenna ports, partial coherence of the antenna ports and coherence of the antenna ports;
the processing module is used for determining a transmission codebook of the terminal equipment according to the antenna port information and the data stream number of the terminal equipment;
the transceiver module is further configured to send indication information of a transmission codebook to the terminal device.
19. The network device of claim 18, wherein the transmission codebook comprises an antenna selection codebook, or wherein the transmission codebook is determined based on the antenna selection codebook;
the processing module is specifically configured to:
and determining the antenna selection codebook according to the antenna port information and the data stream number of the terminal equipment.
20. The network device of claim 19, wherein the antenna port information indicates that the antenna ports of the terminal devices are partially coherent;
wherein the processing module is specifically configured to:
and determining the antenna selection codebook according to the number of the data streams of the terminal equipment and the antenna port mapped by the data streams.
21. The network device of claim 20, wherein the processing module is further configured to:
determining a phase matching codebook according to the phase of a transmission channel corresponding to the antenna port mapped by the data stream;
wherein the transmission codebook comprises the antenna selection codebook and the phase matching codebook, or the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook.
22. The network device of claim 21,
when the transmission codebook comprises the antenna selection codebook and the phase matching codebook, the indication information comprises first indication information for indicating the antenna selection codebook and second indication information for indicating the phase matching codebook.
23. The network device of claim 21,
when the transmission codebook is determined based on the antenna selection codebook and the phase matching codebook, the processing module is further configured to:
determining the transmission codebook based on the antenna selection codebook and the phase matching codebook.
24. The network device of any one of claims 21-23, wherein the processing module is specifically configured to:
when the number of data streams of the terminal device is 1 and 1 data stream is mapped to 2 coherent antenna ports, determining a codebook from the following codebooks to select a codebook for the antenna:
determining a codebook as the phase matching codebook from the following codebooks:
25. the network device of any one of claims 21-23, wherein the processing module is specifically configured to:
when the number of data streams of the terminal device is 2 and 2 data streams are mapped to the same coherent antenna port, determining a codebook from the following codebooks to select a codebook for the antenna:
determining a codebook from among the following codebooks to determine the phase matching codebook:
26. the network device of any one of claims 21-23, wherein the processing module is specifically configured to:
when the number of data streams of the terminal device is 2 and 2 data streams are mapped to different coherent antenna ports, determining a codebook from the following codebooks to select a codebook for the antenna:
determining the phase matching codebook to include a first phase matching codebook determined according to a phase of a transmission channel corresponding to a coherent antenna port to which a first data stream of the 2 data streams is mapped and a second phase matching codebook determined according to a phase of a transmission channel corresponding to an antenna port to which a second data stream of the 2 data streams is mapped, wherein one codebook is determined as the first phase matching codebook and the second phase matching codebook from the following codebooks:
27. the network device of any one of claims 21-23, wherein the processing module is specifically configured to:
when the number of data streams of the terminal device is 3, and a first data stream and a second data stream of the 3 data streams are mapped to the same coherent antenna ports, and a third data stream of the 3 data streams is mapped to an antenna port that is not coherent to the antenna port to which the first data stream and the second data stream are mapped, determining a codebook from the following codebooks to select a codebook for the antenna:
determining the phase matching codebook to include a first phase matching codebook and a second phase matching codebook, where the first phase matching codebook is determined according to the phases of transmission channels corresponding to coherent antenna ports to which the first data stream and the second data stream are mapped, and the second phase matching codebook is determined according to the phases of transmission channels corresponding to antenna ports to which a third data stream is mapped, where the first phase matching codebook is one of the following phase matching codebooks:
the second phase matching codebook is one of the following phase matching codebooks:
28. the network device of any one of claims 21-23, wherein the processing module is specifically configured to:
when the number of data streams of the terminal device is 4, and a first data stream and a second data stream of the 4 data streams are mapped to the same coherent antenna ports, a third data stream and a fourth data stream of the 4 data streams are mapped to the same coherent antenna ports, and the antenna ports to which the third data stream and the fourth data stream are mapped are not coherent with the antenna ports to which the first data stream and the second data stream are mapped, determining a codebook from the following codebooks to select a codebook for the antenna:
determining the phase matching codebook comprises a first phase matching codebook and a second phase matching codebook, wherein the first phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the first data stream and the second data stream are mapped, the second phase matching codebook is determined according to the phases of the transmission channels corresponding to the coherent antenna ports to which the third data stream and the fourth data stream are mapped, and the first phase matching codebook and the second phase matching codebook are one of the following phase matching codebooks:
29. the network device of claim 18, wherein the processing module is specifically configured to:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 1, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 2, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 3, the transmission codebook is one of the following transmission codebooks:
when the antenna ports of the terminal device are completely irrelevant and the number of data streams of the terminal device is 4, the transmission codebook is:
30. a terminal device, comprising:
a sending module, configured to send terminal capability information, where the terminal capability information includes antenna port information, and the antenna port information is used to indicate a coherence condition between antenna ports of the terminal device, where the coherence condition between antenna ports includes one of complete incoherence of antenna ports, partial coherence of antenna ports, and coherence of antenna ports;
and the receiving module is used for receiving the indication information of the transmission codebook, and the transmission codebook is determined by the network equipment according to the antenna port information and the data stream number of the terminal equipment.
31. The terminal device of claim 30,
the transmission codebook comprises an antenna selection codebook, or the transmission codebook is determined based on an antenna selection codebook,
and the antenna selection codebook is determined by the network equipment according to the antenna port information and the data stream number of the terminal equipment.
32. The terminal device of claim 31, wherein the antenna ports of the terminal device are partially coherent;
the antenna selection codebook is determined according to the number of data streams of the terminal device and the antenna port to which the data streams are mapped.
33. The terminal device of claim 32,
the transmission codebook comprises an antenna selection codebook and a phase matching codebook, or the transmission codebook is generated based on the antenna selection codebook and the phase matching codebook,
and determining the phase matching codebook according to the phase of the transmission channel corresponding to the antenna port mapped by the data stream number.
34. The terminal device of claim 33,
when the transmission codebook comprises an antenna selection codebook and a phase matching codebook, the indication information comprises first indication information for indicating the antenna selection codebook and second indication information for indicating the phase matching codebook.
35. A network device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 12.
36. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 13 to 17.
37. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 12.
38. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 13 to 17.
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| CN113271133B (en) * | 2020-02-14 | 2023-09-08 | 大唐移动通信设备有限公司 | Antenna port indication method, terminal and network side equipment |
| CN115150817B (en) * | 2021-03-31 | 2023-07-04 | 中国电信股份有限公司 | Multi-antenna coherence capability reporting method, terminal, base station and storage medium |
| CN114449562B (en) * | 2022-01-19 | 2023-12-19 | 哲库科技(北京)有限公司 | Communication method, terminal device and network device |
| CN118140457A (en) * | 2022-09-28 | 2024-06-04 | 北京小米移动软件有限公司 | Method and device for determining full-coherence transmission codebook of uplink MIMO transmission 8-antenna port |
| WO2024098296A1 (en) * | 2022-11-09 | 2024-05-16 | 北京小米移动软件有限公司 | Method for determining fully-coherent transmission codebook of eight antenna ports for uplink mimo transmission and apparatus |
| WO2024178584A1 (en) * | 2023-02-28 | 2024-09-06 | Qualcomm Incorporated | User equipment-specific codebook |
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