WO2024021133A1 - 指示方法、装置、设备及存储介质 - Google Patents

指示方法、装置、设备及存储介质 Download PDF

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Publication number
WO2024021133A1
WO2024021133A1 PCT/CN2022/109262 CN2022109262W WO2024021133A1 WO 2024021133 A1 WO2024021133 A1 WO 2024021133A1 CN 2022109262 W CN2022109262 W CN 2022109262W WO 2024021133 A1 WO2024021133 A1 WO 2024021133A1
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Prior art keywords
trp
basis vector
index value
basis
indicates
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PCT/CN2022/109262
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English (en)
French (fr)
Inventor
高雪媛
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/109262 priority Critical patent/WO2024021133A1/zh
Priority to CN202280002487.XA priority patent/CN117795914A/zh
Publication of WO2024021133A1 publication Critical patent/WO2024021133A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to an indication method, device, equipment and storage medium.
  • multi-point cooperative transmission technology can be used. Different from single point transmission, such as a single transmission point (transmission/reception point, TRP) or panel (Panel), multi-point collaborative transmission refers to multiple TRP (Multiple Transmission and Reception Point, Multi-TRP)/panel to provide data for one user Serve.
  • Multipoint cooperative transmission technology can be roughly divided into two types: coherent transmission (CJT) and non-coherent transmission (NCJT).
  • CJT means that each data stream will be mapped to the m-TRP/Panel participating in the collaboration through a weighted vector.
  • CJT is equivalent to splicing multiple sub-arrays into a higher-dimensional virtual array to obtain higher shaping or precoding gains.
  • Embodiments of the present disclosure provide an indication method, device, equipment, chip system, storage medium, computer program and computer program product, which can be applied in the field of communication technology and can effectively improve the accuracy of instructions while reducing the corresponding indication overhead of codebook parameters. Indicative effect of codebook parameters.
  • embodiments of the present disclosure provide an indication method, which is applied to a terminal device.
  • the method includes:
  • the codebook parameter information indicated by the network device includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group;
  • the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group, and the index value is the same as the index value of the codebook parameter. Quantity related.
  • the codebook parameters include at least one of the following:
  • the indication information includes at least one of the following:
  • the indication information of the FD basis vector is used to indicate at least one of the following:
  • the reference TRP and the other TRPs belong to the multiple TRPs
  • the reference TRP group and the other TRP groups belong to the multiple TRP groups
  • the multiple TRPs or the multiple TRP groups are The terminal device provides data services.
  • the method further includes:
  • the codebook parameter information also includes: a reference number; the number of codebook parameters includes: the number of FD basis vectors configured for each TRP or each TRP group;
  • the network device sends instructions including:
  • the indication information of the FD basis vector is sent to the network device; wherein the indication information of the FD basis vector is used to indicate at least one of the following:
  • the codebook parameter information also includes: a reference number; the number of codebook parameters includes: the number of FD basis vectors configured for the reference TRP or reference TRP group;
  • the method also includes:
  • the reference number and the number of FD basis vectors configured for the reference TRP or reference TRP group are processed based on the first indication method to obtain a first indication value, where the first indication value is used to indicate the difference between the reference TRP and the reference TRP group. Or the index value of the FD basis vector corresponding to the reference TRP group;
  • the first indication method includes:
  • N 3 represents the reference number
  • Mi represents the number of FD basis vectors configured for the reference TRP or reference TRP group
  • i represents the sequence number of the reference TRP in multiple TRPs, or represents the reference TRP group in multiple TRPs. The sequence number in a TRP group.
  • the codebook parameter information also includes: a reference number; the number of codebook parameters includes: the number of FD basis vectors configured for each other TRP or each other TRP group;
  • the method also includes:
  • the reference quantity and the number of FD basis vectors configured for each other TRP or each other TRP group are processed based on the second indication method to obtain a second indication value, and the second indication value is used to indicate the The index value of the FD basis vector corresponding to each other TRP or each other TRP group;
  • the second indication method includes:
  • N 3 represents the reference number
  • M i represents the number of FD basis vectors configured for each other TRP or each other group of TRPs
  • i represents the sequence number of each other TRP in the plurality of TRPs
  • the codebook parameter information also includes: a reference number; the number of codebook parameters includes: the total number of FD basis vectors configured for all TRPs or TRP groups;
  • sending instruction information to the network device includes:
  • the indication information of the FD basis vector is used to indicate at least one of the following:
  • the codebook parameter information also includes: a reference number; the number of codebook parameters includes: the total number of FD basis vectors configured for all TRPs or TRP groups;
  • the method also includes:
  • the reference number and the total number of FD basis vectors are processed based on the third indication method to obtain a third indication value.
  • the third indication value is used to indicate the FD basis vector corresponding to each TRP or each TRP group. index value;
  • the third instruction method includes:
  • N 3 represents the reference number
  • M represents the total number of FD basis vectors configured for all TRPs or TRP groups.
  • the codebook parameter information also includes: a reference number
  • the method also includes:
  • the fourth instruction method includes:
  • N 3 represents the reference quantity.
  • the reference quantity is any of the following:
  • the precoding matrix indicates the number of PMIs
  • the reference TRP is any of the following:
  • TRP corresponding to the largest first reference amplitude among multiple first reference amplitudes
  • the first description value is any of the following:
  • the port group index value corresponding to the TRP is the same as the TRP.
  • the reference TRP set is any of the following:
  • the TRP group corresponding to the largest second reference amplitude among multiple second reference amplitudes
  • the TRP group corresponding to the smallest or largest second description value among the plurality of second description values, and each second description value corresponds to one of the TRP groups.
  • the second description value is any of the following:
  • the port group index value corresponding to the TRP group is the port group index value corresponding to the TRP group.
  • the indication information of the SD basis vector and the pair of SD and FD basis vectors is used to indicate at least one of the following:
  • the basis vector is a discrete Fourier transform DFT basis vector
  • sending the instruction information to the network device includes:
  • the indication information of the DFT basis vector is sent, where the indication information of the DFT basis vector is used to indicate any of the following:
  • the index value of the FD basis vector corresponding to each TRP group is the index value of the FD basis vector corresponding to each TRP group.
  • sending instruction information to the network device includes:
  • the indication information of the SD and FD basis vector pair is used to indicate at least one of the following:
  • the index value of the SD and FD basis vector pair corresponding to each TRP group is the index value of the SD and FD basis vector pair corresponding to each TRP group.
  • the number of codebook parameters includes: the number of SD and FD basis vector pairs configured for each TRP or each TRP group, and the number of SD and FD basis vectors configured for all TRPs or TRP groups. the total number of pairs; the method further includes:
  • the total number of SD and FD basis vector pairs and the number of SD and FD basis vector pairs are processed to obtain a fifth indication value.
  • the fifth indication value is used to indicate the number corresponding to each TRP or each TRP group.
  • the fifth instruction method includes:
  • X represents the total number of SD and FD basis vector pairs configured for all TRP or TRP groups
  • Y i represents the number of SD and FD basis vector pairs configured for each TRP or each TRP group
  • i represents The sequence number of each TRP in multiple TRPs, or the sequence number of each TRP group in multiple TRP groups.
  • the basis vector is a feature vector
  • the method further includes:
  • the indication information of the feature vector is used to indicate any of the following:
  • the basis vector is a feature vector
  • the method further includes:
  • the indication information of the feature vector is sent.
  • the method further includes:
  • a combining coefficient corresponding to the TRP is indicated to the network device based on a second period, wherein the first period is greater than the second period.
  • the number of data transmission layers is multiple; wherein the indication information satisfies at least one of the following:
  • the indication information of the CSI-RS port corresponding to each data transmission layer is the same;
  • the indication information of the SD basis vector corresponding to each data transmission layer is the same;
  • the indication information of the FD basis vector corresponding to each data transmission layer is different;
  • the indication information of the SD and FD basis vector pairs corresponding to each data transmission layer is the same or different, where the basis vectors are DFT basis vectors;
  • the indication information of the SD and FD basis vector pairs corresponding to each data transmission layer is the same, where the basis vectors are feature vectors.
  • embodiments of the present disclosure provide another indication method, which is applied to network devices.
  • the method includes:
  • codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group;
  • Receive indication information sent by the terminal device wherein the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group, and the index value is the same as the codebook parameter. related to the quantity.
  • the codebook parameters include at least one of the following:
  • the indication information includes at least one of the following:
  • the indication information of the FD basis vector is used to indicate at least one of the following:
  • the reference TRP and the other TRPs belong to the multiple TRPs
  • the reference TRP group and the other TRP groups belong to the multiple TRP groups
  • the multiple TRPs or the multiple TRP groups are The terminal device provides data services.
  • the codebook parameter information further includes: a reference number, and the number of codebook parameters is any one of the following:
  • the reference quantity is any of the following:
  • the precoding matrix indicates the number of PMIs
  • the indication information of the SD basis vector and the pair of SD and FD basis vectors is used to indicate at least one of the following:
  • embodiments of the present disclosure provide an indicating device that has some or all of the functions of the terminal device in implementing the method described in the first aspect.
  • the indicating device may have some or all of the functions of the present disclosure.
  • the functions in the embodiments may also be used to independently implement any of the embodiments of the present disclosure.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the indicating device may include a transceiver module and a processing module, and the processing module is configured to support the indicating device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the indicating device and other devices.
  • the indicating device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the indicating device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • embodiments of the present disclosure provide another indicating device that has some or all of the functions of the network device in the method example described in the second aspect.
  • the functions of the indicating device may have some of the functions in the present disclosure.
  • the functions in all the embodiments may also be provided to implement the functions of any one embodiment in the present disclosure independently.
  • the functions described can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the indicating device may include a transceiver module and a processing module, and the processing module is configured to support the indicating device to perform corresponding functions in the above method.
  • the transceiver module is used to support communication between the pointing device and other devices.
  • the indicating device may further include a storage module coupled to the transceiver module and the processing module, which stores necessary computer programs and data for the indicating device.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the instruction method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor.
  • the processor calls a computer program in a memory, it executes the instruction method described in the second aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The instruction method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device.
  • the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The instruction method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device executes the instruction method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device.
  • the device includes a processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the code instructions to cause the The device executes the instruction method described in the second aspect.
  • an embodiment of the present disclosure provides a communication system, which includes the indicating device described in the third aspect and the indicating device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device according to the sixth aspect, or the system includes the communication device according to the seventh aspect and the communication device according to the eighth aspect, or the system includes the communication device according to the ninth aspect and the communication device according to the tenth aspect. the above-mentioned communication device.
  • embodiments of the present disclosure provide a computer-readable storage medium for storing instructions used by the above-mentioned terminal device. When the instructions are executed, the terminal device is caused to execute the method described in the first aspect. Instruction method.
  • embodiments of the present disclosure provide a readable storage medium for storing instructions used by the above-mentioned network device. When the instructions are executed, the network device is caused to execute the instructions described in the second aspect. method.
  • the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the instruction method described in the first aspect.
  • the present disclosure also provides a computer program product including a computer program, which when run on a computer causes the computer to execute the instruction method described in the second aspect.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the terminal device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface for supporting a network device to implement the functions involved in the second aspect, for example, determining or processing data involved in the above method. and information.
  • the chip system further includes a memory, and the memory is used to store necessary computer programs and data for the network device.
  • the chip system may be composed of chips, or may include chips and other discrete devices.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the instruction method described in the first aspect.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the instruction method described in the second aspect.
  • the indication information is sent to the network device, where the indication information is used to indicate The index value of the codebook parameter selected by the terminal device for the TRP or TRP group.
  • the index value is related to the number of codebook parameters, which can effectively improve the indication effect of the codebook parameters while reducing the corresponding indication overhead of the codebook parameters.
  • Figure 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure
  • Figure 2 is a schematic flowchart of an instruction method provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of another instruction method provided by an embodiment of the present disclosure.
  • Figure 4 is a schematic flowchart of another instruction method provided by an embodiment of the present disclosure.
  • Figure 5 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • Figure 6 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • Figure 7 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • Figure 8 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • Figure 9 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • Figure 10 is a schematic flowchart of yet another indication method provided by an embodiment of the present disclosure.
  • Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • Figure 12 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.
  • Figure 13 is a schematic structural diagram of a chip provided by an embodiment of the present disclosure.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other.
  • first information may also be called second information, and similarly, the second information may also be called first information.
  • the words "if” and “if” as used herein may be interpreted as “when” or “when” or “in response to determining.”
  • a codebook refers to putting available codes together to obtain a table, then using serial numbers to number different codes in the table, and then directly searching for relevant codes in the resulting table based on the serial numbers.
  • several precoding matrices can be used to form a codebook, and the transmitter and receiver determine the contents of the codebook in advance.
  • the terminal equipment can measure the downlink channel based on the Channel Status Information-Reference Signal (CSI-RS) to obtain the channel matrix.
  • CSI-RS Channel Status Information-Reference Signal
  • the terminal device can select the precoding matrix from the codebook that best matches the current channel conditions according to the preconfigured optimization criteria, and indicate its precoding matrix (Pre-coding Matrix) through the feedback link. Indicator, PMI) feedback to the network device.
  • CSI-RS Channel Status Information-Reference Signal
  • Frequency domain is a coordinate system used to describe the frequency characteristics of signals. In electronics, control systems engineering, and statistics, frequency domain plots show the amount of signal in each given frequency band within a range of frequencies.
  • the frequency domain representation can also include information on the phase shift of each sinusoid, allowing the frequency components to be recombined to restore the original time signal.
  • Basis also called basis
  • the basis of a vector space is a special subset of it, and the elements of the basis are called basis vectors.
  • FIG. 1 is a schematic architectural diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include but is not limited to a network device and a terminal device.
  • the number and form of devices shown in Figure 1 are only for examples and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more devices may be included. Network equipment, two or more terminal devices.
  • the communication system shown in Figure 1 includes a network device 101 and a terminal device 102 as an example.
  • LTE long term evolution
  • 5th generation fifth generation
  • 5G new radio (NR) system 5th generation new radio
  • the network device 101 in the embodiment of the present disclosure is an entity on the network side that is used to transmit or receive signals.
  • the network device 101 may be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, a base station in other future mobile communication systems, or Access nodes in wireless fidelity (WiFi) systems, etc.
  • eNB evolved NodeB
  • TRP transmission reception point
  • gNB next generation base station
  • WiFi wireless fidelity
  • the embodiments of the present disclosure do not limit the specific technologies and specific equipment forms used by network equipment.
  • the network device may be composed of a centralized unit (central unit, CU) and a distributed unit (DU).
  • the CU may also be called a control unit (control unit).
  • a CU-DU structure may be used.
  • the protocol layers of network equipment, such as base stations, are separated, and the functions of some protocol layers are placed in the CU for centralized control. The remaining part or all of the protocol layer functions are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 102 in the embodiment of the present disclosure is an entity on the user side that is used to receive or transmit signals, such as a mobile phone.
  • the terminal equipment may also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT), etc.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality, AR) terminal equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical surgery, wireless terminal equipment in smart grid (smartgrid) Wireless terminal equipment, wireless terminal equipment in transportation safety (transportation safety), wireless terminal equipment in smart city (smartcity), wireless terminal equipment in smart home (smarthome), etc.
  • VR virtual reality
  • AR augmented reality
  • wireless terminal equipment in industrial control wireless terminal equipment in self-driving
  • wireless terminal equipment in remote medical surgery wireless terminal equipment in smart grid (smartgrid)
  • Wireless terminal equipment wireless terminal equipment in transportation safety (transportation safety), wireless terminal equipment in smart city (smartcity), wireless terminal equipment in smart home (smarthome), etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific equipment form used by the terminal equipment.
  • FIG. 2 is a schematic flowchart of an instruction method provided by an embodiment of the present disclosure.
  • the method is executed by a terminal device.
  • the indication method in this embodiment can be applied to terminal devices, such as mobile phones, tablets with mobile communication functions, smart watches, etc., without limitation.
  • the method may include but is not limited to the following steps:
  • S102 Obtain the codebook parameter information indicated by the network device, where the codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group.
  • the codebook can be used as reference information in the precoding process. Based on the codebook, the available codes can be combined into a table, and then the serial numbers are used to number the different codes in the table, and then the relevant codes are searched directly in the resulting table according to the serial numbers. code.
  • the codebook parameter information refers to the relevant information corresponding to the codebook parameters, such as the reporting priority and reporting combination of the codebook parameters, and there is no limit to this.
  • the Transmission Reception Point refers to a network device that provides communication services for terminal devices.
  • a TRP group refers to a TRP combination formed by multiple TRPs, that is, a TRP group can include several TRPs, and multiple TRPs or multiple TRP groups provide data services for terminal devices.
  • the number of existing codebook parameters may be multiple, and indicating different codebook parameters may affect the precoding process of the terminal device.
  • the terminal device can obtain the accurate number of codebook parameters to effectively improve the accuracy of the instruction process.
  • the embodiment of the present disclosure also provides an indication method.
  • the codebook parameters include at least one of the following: frequency domain FD basis vector, spatial domain SD basis vector, SD and FD basis vector pair, channel state information reference signal CSI-RS port, The practicality of the obtained codebook parameters in the instruction process can be effectively guaranteed.
  • codebook-based precoding technology is usually used.
  • the terminal device can instruct to report the index value of the selected codebook parameter for precoding calculation on the network device side.
  • the codebook Parameters for example, frequency domain FD basis vectors, spatial domain SD basis vectors, SD and FD basis vector pairs, CSI-RS ports, etc.
  • basis also called basis
  • basis vectors are the basic tool to describe and characterize vector space.
  • the basis of a vector space is a special subset of it, and the elements of the basis are called basis vectors.
  • the frequency domain (FrequencyDomain, FD) basis vector refers to the basis vector of the frequency domain dimension.
  • the spatial domain (SD) refers to the basis vector of the spatial domain dimension.
  • the SD and FD basis vector pair refers to the combination of the SD basis vector and the FD basis vector.
  • the Channel State Information-Reference Signal is a reference signal in the communication system. Since the wireless channel conditions may continue to change, the terminal device needs to pass the downlink channel conditions it sees through CSI is fed back to the network equipment so that the network equipment can take the channel quality into consideration during downlink scheduling.
  • the channel state information reference signal CSI-RS port may refer to a port used to transmit the channel state information reference signal CSI-RS.
  • the channels from the UE to the three TRPs can be expressed as H 1 respectively. , H 2 and H 3 .
  • the three channel combinations can be regarded as a higher-dimensional channel, that is, Then calculate the UE's downlink data transmission precoding according to H.
  • the following optional codebook structures Alt1A, Alt1B, and Alt2 can be used to calculate the user's downlink data transmission precoding.
  • a n and p n respectively represent the phase and amplitude factors corresponding to the nth TRP.
  • W 1,n means that the nth TRP corresponds to one or more SD basis vectors, or one or more unit vectors; Indicates the combination coefficient corresponding to n TRPs; W f,n indicates that the nth TRP corresponds to one or more FD basis vectors; W SF,n indicates that the nth TRP corresponds to one or more SD and FD basis vectors. right; represents the combination coefficient corresponding to N TRPs; W f represents the one or more FD basis vectors corresponding to N TRPs.
  • Alt1 SD basis vectors and FD basis vectors are designed separately. Both basis vectors are DFT basis vectors used in traditional Rel-16 Type II codebooks;
  • Alt2 Joint design of SD basis vector and FD basis vector, both basis vectors are DFT basis vectors;
  • Alt3 Joint design of SD basis vector and FD basis vector, both basis vectors are eigenvectors
  • Alt4 SD basis vector and FD basis vector are designed separately, and both basis vectors are eigenvectors.
  • S202 Send indication information to the network device, where the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group, and the index value is related to the number of codebook parameters.
  • the indication information can be generated by the terminal device and sent to the network device, and is used to indicate relevant information of the codebook parameters to the network device.
  • the number of TRPs may be multiple, and the number of TRP groups may also be multiple.
  • an index is a separate, physical storage structure that sorts the values of one or more columns in a database table. It is a collection of one or several column values in a table and the corresponding physical data pointing to the table. A list of logical pointers identifying the data pages for these values.
  • the instruction information is sent to the network device, where,
  • the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group.
  • the index value is related to the number of codebook parameters, which can effectively improve the codebook parameter while reducing the corresponding indication overhead of the codebook parameter. indication effect.
  • Embodiments of the present disclosure also provide an indication method.
  • the indication information includes at least one of the following: indication information of FD basis vectors; indication information of SD basis vectors; indication information of SD and FD basis vector pairs; indication information of CSI-RS ports.
  • Indication information indication information of the starting position of the corresponding window for each TRP in multiple TRPs, where the candidate FD basis vector is within one or more windows; the starting position of the corresponding window of each TRP group in multiple TRP groups.
  • the transport layer refers to one of the layers in the entire network architecture, which can provide services for communication between processes in two hosts.
  • the window which can be called the window function, can be used to intercept signals of a specified size during signal processing.
  • the embodiment of the present disclosure also provides an indication method.
  • the indication information of the FD basis vector is used to indicate at least one of the following: indicating the index value of the FD basis vector corresponding to the reference TRP; indicating the FD basis corresponding to the reference TRP group.
  • the indication overhead indicates the FD basis vectors of multiple TRP/TRP groups.
  • Figure 3 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 3, the method can include but is not limited to the following steps:
  • S203 Difference the index value of the FD basis vector corresponding to each TRP group and the index value of the reference FD basis vector to obtain the index value of the relative FD basis vector corresponding to each TRP group.
  • the index value of the relative FD basis vector corresponding to each TRP is obtained by difference between the index value of the FD basis vector corresponding to each TRP and the index value of the reference FD basis vector.
  • the index value of the corresponding FD basis vector is different from the index value of the reference FD basis vector, and the index value of the relative FD basis vector corresponding to each TRP group is obtained. This can effectively improve the acquisition of the relative FD corresponding to each TRP or each TRP group.
  • the reliability of the index value process of the basis vector ensures the accuracy of the obtained index value.
  • Figure 4 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 4, the method can include but is not limited to the following steps:
  • S104 Send the indication information of the FD basis vector to the network device according to the number of references and the number of FD basis vectors.
  • the codebook parameter information in the embodiment of the present disclosure may also include: a reference number; the number of codebook parameters includes: the number of FD basis vectors configured for each TRP or each TRP group.
  • the indication information of the FD basis vector is used to indicate at least one of the following: indicating the index value of the FD basis vector corresponding to the reference TRP; indicating the index value of the FD basis vector corresponding to the reference TRP group; indicating the index value corresponding to each other TRP
  • the index value of the FD basis vector indicates the index value of the FD basis vector corresponding to each other TRP group.
  • the indication information of the obtained FD basis vectors can be effectively improved based on the number of references and the number of FD basis vectors. Accuracy ensures that the obtained indication information of the FD basis vector has an indication effect on the relevant information of the FD basis vector.
  • the embodiment of the present disclosure also provides an indication method, and the reference quantity is any one of the following: the number of PMI indicated by the precoding matrix, and the number of FD basis vectors included in the sliding window.
  • the Pre-coding Matrix Indicator can be used only in the closed-loop spatial multiplexing transmission mode, and the terminal equipment instructs the network equipment to use the physical downlink shared channel (Physical Downlink Shared Channel) for the terminal equipment.
  • PDSCH Physical Downlink Shared Channel
  • the sliding window refers to a window generated based on the sliding window algorithm (Sliding window algorithm), which can be used to operate on a string or array of a specific size.
  • the length of the window can be pre-configured, and the starting point The position can change in real time, allowing the window to slide through the objects being processed.
  • Figure 5 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 5, the method can include but is not limited to the following steps:
  • S105 Process the reference number and the number of FD basis vectors configured for the reference TRP or the reference TRP group based on the first indication method to obtain the first indication value, where the first indication value is used to indicate the number corresponding to the reference TRP or the reference TRP group. Index value of FD basis vector.
  • the codebook parameter information in the embodiment of the present disclosure may also include: the number of references; the number of codebook parameters includes: the number of FD basis vectors configured for the reference TRP or reference TRP group.
  • the first instruction method includes:
  • M i -1 FD basis vectors are selected from N 3 -1 FD basis vectors, Rounding up, N 3 represents the reference number, M i represents the number of FD basis vectors configured for the reference TRP or reference TRP group, i represents the sequence number of the reference TRP in multiple TRPs, or represents the reference TRP group in multiple TRPs. The sequence number in the group.
  • the first indication value refers to the value obtained by processing the reference number and the number of FD basis vectors configured in the reference TRP or reference TRP group based on the above-mentioned first indication method.
  • the first indication value is obtained by processing the reference number and the number of FD basis vectors configured for the reference TRP or reference TRP group based on the first indication method, where the first indication value is used to indicate the difference between the reference TRP or the reference TRP group.
  • the index value of the FD basis vector corresponding to the TRP group can realize the calculation and processing of the reference number and the number of FD basis vectors configured in the reference TRP or reference TRP group, which can effectively improve the obtained reference TRP or the FD basis vector corresponding to the reference TRP group. Indicates the accuracy of the index value.
  • Figure 6 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 6, the method can include but is not limited to the following steps:
  • S106 Process the reference number and the number of FD basis vectors configured for each other TRP or each other TRP group based on the second indication method to obtain a second indication value.
  • the second indication value is used to indicate the number of FD basis vectors configured with each other TRP or each other TRP group.
  • the codebook parameter information in the embodiment of the present disclosure may also include: a reference number; the number of codebook parameters includes: the number of FD basis vectors configured for each other TRP or each other TRP group.
  • the second instruction method includes:
  • N 3 represents the reference number
  • M i represents the number of FD basis vectors configured for each other TRP or each other TRP group
  • i represents the sequence number of each other TRP in multiple TRPs, or represents each The sequence number of other TRP groups in multiple TRP groups.
  • the second indication value refers to a value obtained by processing the reference number and the number of FD basis vectors configured for each other TRP or each other TRP group based on the second indication method.
  • the second indication value is obtained by processing the reference number and the number of FD basis vectors configured for each other TRP or each other TRP group based on the second indication method.
  • the second indication value is used to indicate the relationship with each
  • the index value of the FD basis vector corresponding to other TRP or each other TRP group can implement the operation processing of the reference number and the number of FD basis vectors configured for each other TRP or each other TRP group based on the second instruction processing method. , which can effectively improve the accuracy of the indication of the obtained second indication value for the index value of the FD basis vector corresponding to other TRPs or other TRP groups.
  • the embodiment of the present disclosure also provides an indication method.
  • the codebook parameter information also includes: a reference number.
  • the number of codebook parameters includes: the total number of FD basis vectors configured for all TRPs or TRP groups; wherein, to the network
  • the device sends indication information, including: sending indication information of FD basis vectors according to the reference number and/or the total number of FD basis vectors; wherein, the indication information of FD basis vectors is used to indicate at least one of the following: indicating that it is related to multiple TRPs.
  • the index value of the FD basis vector corresponding to each TRP indicating the index value of the FD basis vector corresponding to each TRP group in the plurality of TRP groups; indicating the index value of the relative FD basis vector corresponding to each TRP in the plurality of TRPs ;Indicates the index value of the relative FD basis vector corresponding to each TRP group in the plurality of TRP groups;Indicates the index value of the reference FD basis vector, whereby the FD basis corresponding to the reference number and/or all TRPs or TRP groups can be
  • the total number of vectors effectively improves the accuracy of the indication information of the sent FD base vectors.
  • Figure 7 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 7, the method can include but is not limited to the following steps:
  • S107 Process the reference number and the total number of FD basis vectors based on the third indication method to obtain a third indication value.
  • the third indication value is used to indicate the index value of the FD basis vector corresponding to each TRP or each TRP group.
  • the codebook parameter information in the embodiment of the present disclosure may also include: a reference number; the number of codebook parameters includes: the total number of FD basis vectors configured for all TRPs or TRP groups.
  • the third instruction method includes:
  • N 3 represents the reference number
  • M represents the total number of FD basis vectors configured for all TRPs or TRP groups.
  • the third indication value refers to a value obtained by processing the reference number and the total number of FD basis vectors based on the above third indication method.
  • the third indication value is obtained by processing the reference number and the total number of FD basis vectors based on the third indication method.
  • the third indication value is used to indicate the FD basis vector corresponding to each TRP or each TRP group.
  • the index value can effectively improve the indication accuracy of the obtained third indication value for the index value of the FD basis vector corresponding to each TRP or each TRP group.
  • Figure 8 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 8, the method can include but is not limited to the following steps:
  • S108 Process the reference number N 3 based on the fourth indication method to obtain a fourth indication value.
  • the fourth indication value is used to indicate the index value of the reference FD basis vector.
  • the codebook parameter information in the embodiment of the present disclosure may also include: reference quantity.
  • the fourth instruction method includes:
  • N 3 represents the reference quantity.
  • the fourth indication value refers to the value obtained by processing the reference quantity based on the fourth indication method.
  • the fourth indication value is obtained by processing the reference quantity based on the fourth indication method.
  • the fourth indication value is used to indicate the index value of the reference FD basis vector, which can effectively improve the performance of the obtained fourth indication value for the reference FD basis vector. Indicates the accuracy of the index value.
  • the embodiment of the present disclosure also provides an indication method.
  • the reference TRP is any one of the following: the TRP corresponding to the first L1-RSRP with the largest median value among multiple first layer 1 reference signal received powers L1-RSRP, each first L1-RSRP corresponds to a TRP; the TRP corresponding to the first combination coefficient with the largest amplitude among multiple first combination coefficients; the TRP corresponding to the largest first reference amplitude among multiple first reference amplitudes; the smallest among multiple first description values Or the TRP corresponding to the maximum first description value.
  • Each first description value corresponds to a TRP, which can make the reference TRP suitable for personalized application scenarios and effectively improve the applicability of the reference TRP in the indication process.
  • Reference signal receiving power is a key parameter representing wireless signal strength in the LTE cell network and one of the physical layer measurement requirements. It is the signal power received by all resource particles carrying the reference signal within a certain symbol. average of.
  • Layer 1 reference signal received power (L1-RSRP) refers to the reference signal received power corresponding to the physical layer.
  • the first layer 1 reference signal received power refers to the layer 1 reference signal received power corresponding to the TRP.
  • the combination coefficient refers to the coefficient jointly affected by multiple TRPs during the precoding process.
  • the first combination coefficient refers to the combination coefficient corresponding to TRP.
  • the first reference amplitude refers to the coefficient amplitude corresponding to TRP.
  • the embodiment of the present disclosure also provides an indication method.
  • the first description value is any one of the following: the index value of the FD base vector corresponding to the TRP; the resource identification number ID in the CSI-RS resource corresponding to the TRP; and
  • the port group index value corresponding to the TRP can effectively improve the richness of the content that can be described by the first description value to adapt to the personalized needs in the application scenario.
  • the Channel State Information-Reference Signal can be used to obtain channel state information, measure the channel between the base station and the UE, and obtain the channels required for scheduling and link adaptation.
  • Status information such as precoding matrix, channel quality information, etc.
  • the resource label ID refers to the label corresponding to the CSI-RS resource.
  • a port group refers to a port set composed of multiple ports.
  • the embodiment of the present disclosure also provides an indication method.
  • the reference TRP group is any one of the following: the TRP group corresponding to the second L1-RSRP with the largest value among multiple second L1-RSRPs, and each second L1-RSRP corresponds to A TRP group; a TRP group corresponding to the second combination coefficient with the largest amplitude among multiple second combination coefficients; a TRP group corresponding to the largest second reference amplitude among multiple second reference amplitudes; the smallest or smallest among multiple second description values
  • the TRP group corresponding to the maximum second description value, and each second description value corresponds to a TRP group. Therefore, multiple methods of determining the reference TRP group can be provided for the indication process to adapt to personalized application scenarios.
  • the second L1-RSRP refers to the layer 1 reference signal received power (L1-RSRP) corresponding to the TRP group.
  • the second reference amplitude refers to the coefficient amplitude value corresponding to the TRP group.
  • the second combination coefficient refers to the combination coefficient corresponding to the TRP group.
  • the embodiment of the present disclosure also provides an indication method.
  • the second description value is any one of the following: the index value of the FD base vector corresponding to the TRP group; the resource identification number ID in the CSI-RS resource corresponding to the TRP group. ;
  • the port group index value corresponding to the TRP group can ensure the description effect of the second description value corresponding to the TRP group related information.
  • the disclosed embodiment also provides an indication method.
  • the indication information of the SD basis vector and the pair of SD and FD basis vectors is used to indicate at least one of the following: indicating the index value of the SD basis vector corresponding to each TRP; indicating and The index value of the FD basis vector corresponding to each TRP; indicating the index value of the SD and FD basis vector pair corresponding to each TRP; indicating the index value of the SD basis vector corresponding to each TRP group; indicating the index value of the SD basis vector corresponding to each TRP group; indicating the index value of the SD and FD basis vector corresponding to each TRP group.
  • the index value of the corresponding FD basis vector indicating the index value of the SD and FD basis vector pair corresponding to each TRP group, which can greatly enrich the indication effect of the joint indication information to adapt to the SD basis vector, FD basis Vectors and personalized joint relationships between pairs of SD and FD basis vectors.
  • Figure 9 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied in a terminal device. As shown in Figure 9, the method can include but is not limited to the following steps:
  • S109 Send the indication information of the DFT basis vector according to the number of codebook parameters.
  • the basis vectors in the embodiments of the present disclosure may be discrete Fourier transform DFT basis vectors.
  • the basis vector can be an SD basis vector, an FD basis vector, or a basis vector in a pair of SD and FD basis vectors, and there is no limit to this.
  • the indication information of the DFT basis vector is used to indicate any of the following: the index value of the SD basis vector corresponding to each TRP; the index value of the FD basis vector corresponding to each TRP; the SD corresponding to each TRP group The index value of the basis vector; the index value of the FD basis vector corresponding to each TRP group.
  • the basis vector is a discrete Fourier transform DFT basis vector
  • the indication information of the DFT basis vector is sent according to the number of codebook parameters, where the indication information of the DFT basis vector is used to indicate any of the following: and The index value of the SD basis vector corresponding to each TRP; the index value of the FD basis vector corresponding to each TRP; the index value of the SD basis vector corresponding to each TRP group; the index value of the FD basis vector corresponding to each TRP group
  • the index value thus ensures the indication effect of the indication information of the sent DFT basis vector when the basis vector is a discrete Fourier transform DFT basis vector.
  • the embodiment of the present disclosure also provides an indication method, which includes: sending indication information of a pair of SD and FD basis vectors according to the number of codebook parameters; wherein the indication information of a pair of SD and FD basis vectors is used to indicate at least one of the following: Item: The index value of the SD and FD basis vector pair corresponding to each TRP; the index value of the SD and FD basis vector pair corresponding to each TRP group, which can effectively improve the indication information of the sent SD and FD basis vector pair. Indicative accuracy of the index value of the SD and FD basis vector pair corresponding to each TRP and/or TRP group.
  • the embodiment of the present disclosure also provides an indication method.
  • the number of codebook parameters includes: the number of SD and FD basis vector pairs configured for each TRP or each TRP group, and the number of SDs configured for all TRPs or TRP groups. and the total number of pairs of basis vectors of SD and FD; the method also includes: processing the total number of pairs of basis vectors of SD and FD and the number of pairs of SD and FD basis vectors to obtain a fifth indicator value, and the fifth indicator value is used to indicate the relationship with each TRP Or the index value of the SD and FD basis vector pair corresponding to each TRP group; the fifth indication method includes:
  • X represents the total number of SD and FD basis vector pairs configured for all TRP or TRP groups
  • Y i represents the number of SD and FD basis vector pairs configured for each TRP or each TRP group
  • i represents The serial number of each TRP in multiple TRPs, or the serial number of each TRP group in multiple TRP groups, thereby improving the efficiency of obtaining the index value while ensuring the accuracy of the index value.
  • the fifth indicator value refers to a value obtained based on the total number of SD and FD basis vector pairs and the number of SD and FD basis vector pairs configured for each TRP or TRP group.
  • the embodiment of the present disclosure also provides an indication method.
  • the indication method if the base vector is a feature vector, the indication information of the feature vector can also be reported based on a display feedback method.
  • the method further includes: determining each of the feature vectors. According to the amplitude and/or phase corresponding to each coefficient, indication information of the feature vector is sent, where the indication information of the feature vector is used to indicate any of the following: indication information of the amplitude corresponding to each coefficient; and
  • the indication information corresponding to the phase of each coefficient can be based on the amplitude and/or phase corresponding to each coefficient in the feature vector, effectively improving the indication effect of the indication information on the feature vector.
  • the eigenvector refers to a non-zero vector whose direction remains unchanged under a certain linear transformation (it can also be said to be conformal) and whose size remains unchanged or is multiplied by a certain scaling factor.
  • the embodiment of the present disclosure also provides an indication method.
  • the indication method if the base vector is a feature vector, the indication information of the feature vector can also be reported based on an implicit feedback method.
  • the method also includes: determining the feature vector of multiple orthogonal basis vectors, and the weight value corresponding to each orthogonal basis vector. According to the orthogonal basis vectors and weight values, the indication information of the feature vector is sent, so that each orthogonal basis vector can be accurately calculated based on the weight value.
  • the importance of the basis vector in the index value generation process is quantified, thereby effectively improving the indication effect of the feature vector.
  • orthogonal basis vectors refer to multiple basis vectors with orthogonal relationships.
  • the weight value can be used to quantitatively describe the importance of the corresponding orthogonal basis vector in the process of generating the index value of the basis vector to which the feature vector belongs.
  • An embodiment of the present disclosure also provides an indication method, which further includes: based on a first period, sending indication information to a network device; based on a second period, indicating to the network device a combination coefficient corresponding to the TRP, wherein the first period is greater than In the second cycle, it can be ensured that the network device obtains the combination coefficient corresponding to the TRP in a timely manner, effectively improving the work efficiency of the network device side in the indication process.
  • the first cycle refers to the transmission cycle configured in advance for the indication information.
  • the second cycle refers to the transmission cycle configured in advance for the combination coefficient corresponding to the TRP.
  • the embodiment of the present disclosure also provides an indication method, the number of data transmission layers is multiple; wherein the indication information satisfies at least one of the following: the same as the indication information of the CSI-RS port corresponding to each data transmission layer ;
  • the indication information of the SD basis vector corresponding to each data transmission layer is the same; the indication information of the FD basis vector corresponding to each data transmission layer is different; the indication information of the SD and FD basis vector pair corresponding to each data transmission layer
  • the basis vector is a DFT basis vector; the indication information of the SD and FD basis vector pairs corresponding to each data transmission layer is the same, where the basis vector is a feature vector, thus, the number of data transmission layers can be When there are multiple, the adaptability between the indication information and the application scenario is ensured.
  • the terminal device reports at least one or more indication information of port selection, SD basis vector, FD basis vector or SD and FD basis vector pair.
  • the codebook parameter information is at least Including the number of SD basis vectors, FD basis vectors or pairs of SD and FD basis vectors.
  • the terminal reports the indication information through the following methods:
  • the FD basis vector is the DFT basis vector.
  • Alt1 (used in the above codebook structure Alt1): reports a reference TRP/TRP group corresponding FD basis vector indication information, the indication information instructs the terminal device to select M i -1 FDs from the candidate N 3 -1 FD basis vectors. base vector; and then report the FD base vector indication information corresponding to other TRP/TRP groups, and the indication information instructs the terminal device to select Mi FD base vectors from N 3 .
  • Alt2 (used in the above codebook structure Alt2): Report an FD basis vector indication information corresponding to all TRP/TRP groups.
  • the instruction information instructs the terminal device to select M-1 FD basis vectors from N 3 -1 FD basis vectors.
  • the terminal device reports a reference FD basis vector and a relative FD basis vector corresponding to each TRP/TRP group relative to the reference FD basis vector.
  • the reference basis vector is passed
  • the bits instruction information indicates that 1 FD basis vector is selected from N FD basis vectors.
  • the basis vector index selected for a certain TRP is 2, 3, 5, 8. Terminal reporting Indicates that the index of the reference FD basis vector is 2, then the relative indexes corresponding to the TRP are 0, 1, 3, and 6, that is, all index values are reduced by 2 after the offset.
  • the reference TRP/TRP group is the TRP/TRP group corresponding to the maximum L1-RSRP received by the terminal.
  • the reference TRP/TRP group is the TRP/TRP group corresponding to the strongest coefficient or the largest reference amplitude.
  • the strongest coefficient refers to the largest amplitude among the combined coefficients.
  • the maximum reference amplitude refers to the maximum value of multiple reference amplitudes corresponding to multiple TRP/TRP groups.
  • the reference TRP/TRP group is the TRP/TRP group corresponding to the basis vector with the smallest or largest index among all FD basis vectors.
  • the reference TRP/TRP group is the smallest or largest resource ID among multiple CSI-RS resources, or one CSI-RS resource corresponds to the TRP/TRP group with the smallest or largest index among multiple port groups, or the reference TRP /TRP group is explicitly passed by the terminal through a bitmap of size N Trp or Report to gNB.
  • N Trp indicates the number of cooperative TRP/TRP groups.
  • the value of N may be the number of PMI subbands or the size of a window, and the value of N is determined by parameters configured on the network side.
  • the UE When the candidate FD base vector is within a window, the UE also needs to report the starting position of the window corresponding to each TRP/TRP group. The UE passes Indicates the starting position of a TRP/TRP group corresponding window.
  • M i represents the FD basis vector corresponding to the i-th TRP/TRP group, and M represents the basis vector corresponding to all TRP/TRP groups.
  • the basis vector is the DFT basis vector.
  • Alt1 For each TRP/TRP group, indicate the SD and FD basis vectors respectively, and then indicate the SD and FD basis vector pairs of each TRP/TRP group selected by the terminal through a bitmap or combination number.
  • Alt2 For each TRP/TRP group, report an indication information of a pair of SD and FD basis vectors.
  • the indication information instructs the terminal to select Y i pairs of SD and FD basis vectors from the X candidate pairs of SD and FD basis vectors.
  • the above-mentioned FD basis vector can be selected from N 3 candidate basis vectors, or can be selected from a window configured on the network side.
  • the starting point of the window can be predefined, or the indication can be reported by the terminal device.
  • the basis vectors are feature vectors.
  • Alt1 Display feedback, the amplitude and phase of each coefficient in the vector are reported independently and quantitatively.
  • each feature vector is represented by a linear combination of S orthogonal basis vectors and S weight values of each basis vector, S is a positive integer.
  • Orthogonal basis vectors can be different basis vector types such as DFT, DCT, polynomial, etc.
  • the feedback period of the basis vector is reported through the first period T1 or aperiodic triggering, and the corresponding combination coefficient Report through the second period T2, where T1>T2.
  • the indication information in steps 1 and 2 can indicate the terminal's selected port, SD basis vector, FD basis vector, and SD and FD basis vector pair through a bitmap or combination number.
  • Figure 10 is a schematic flowchart of another indication method provided by an embodiment of the present disclosure.
  • the indication method in this embodiment can be applied to network devices. As shown in Figure 10, the method can include but is not limited to the following steps:
  • S110 Indicate codebook parameter information to the terminal device, where the codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group.
  • the network device indicates the codebook parameter information to the terminal device, and the obtained codebook parameter information can be used to instruct the terminal device to configure the codebook parameters.
  • S210 Receive indication information sent by the terminal device, where the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group, and the index value is related to the number of codebook parameters.
  • the instruction information sent by the terminal device is received by indicating codebook parameter information to the terminal device, where the codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group, where, The indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group. The index value is related to the number of codebook parameters. Based on the codebook parameter information, the indication information sent by the terminal device can be ensured to be appropriate for the indication scenario. Matchability can effectively improve the indication effect of indication information corresponding to network equipment and reduce the indication overhead corresponding to codebook parameters.
  • the embodiment of the present disclosure also provides an indication method.
  • the codebook parameters include at least one of the following: frequency domain FD basis vector, spatial domain SD basis vector, SD and FD basis vector pair, channel state information reference signal CSI-RS port, To ensure the reliability of the instruction process.
  • the number of codebook parameters may include at least one of the following: the number of frequency domain FD basis vectors, the number of spatial domain SD basis vectors, the number of pairs of SD and FD basis vectors, and channel state information.
  • the number of reference signal CSI-RS ports is not limited.
  • the number of spatial SD basis vectors can be the number of SD basis vectors configured for each TRP or TRP group.
  • the following method can be used :
  • W 1 consists of 2L SD basis vectors.
  • the first polarization direction and the second polarization direction respectively contain L identical SD basis vectors.
  • W f consists of M FD basis vectors, which correspond to SD basis vectors and FD basis. Vectors can be selected and indicated as follows:
  • O 1 and O 2 represent the oversampling factors of the SD basis vectors in the horizontal and vertical directions respectively.
  • N 1 N 2 respectively represent the number of antenna ports in the horizontal and vertical directions in a single polarization direction. Represents the calculation of the number of combinations of L SD basis vectors selected from N 1 N 2 , Represents the upward rounding of x.
  • the selection and indication method of FD basis vector can also be as shown below, and there is no restriction on this.
  • N 3 is the number of PMI subbands.
  • N 3 >19 the UE passes through a window of size 2M. Indicates the selected M FD basis vectors.
  • the number of channel state information reference signal CSI-RS ports may be the number of SD basis vectors configured for each TRP or TRP group, then when indicating the index value of the SD basis vector corresponding to each TRP or TRP group , can be used as follows:
  • W 1 consists of 2L unit basis vectors, and the first polarization direction and the second polarization direction each contain L identical unit basis vectors.
  • the CSI-RS port selection and indication method is:
  • the same L consecutive CSI-RS ports are selected in the two polarization directions, and the same port is selected for v data transmission layers.
  • Indication method of FD basis vector The indication method is the same as the selection and indication method of FD basis vector described in 1-2 above.
  • W 1 consists of 2L unit basis vectors, and the first polarization direction and the second polarization direction each contain L identical unit basis vectors.
  • Selection method Select the same L CSI-RS ports in the two polarization directions, and select the same port for v data transmission layers.
  • the indication method of FD basis vector can also be as shown below, and there is no restriction on this.
  • N ⁇ 2,4 ⁇ is a configurable parameter.
  • the embodiment of the present disclosure also provides an indication method.
  • the indication information includes at least one of the following: indication information of FD basis vectors, indication information of SD basis vectors, indication information of SD and FD basis vector pairs, and information corresponding to the data transmission layer.
  • indication information of the port indication information of the starting position of the corresponding window of each TRP in multiple TRPs, where the candidate FD basis vector is in one or more windows, and the starting position of the corresponding window of each TRP group in multiple TRP groups.
  • the candidate FD basis vectors are within one or more windows, thereby effectively improving the flexibility and indication effect of the content indicated by the indication information.
  • the embodiment of the present disclosure also provides an indication method.
  • the indication information of the FD basis vector is used to indicate at least one of the following: indicating the index value of the FD basis vector corresponding to the reference TRP, indicating the FD basis corresponding to the reference TRP group.
  • the index value of the relative FD basis vector corresponding to each TRP group and the index value indicating the reference FD basis vector, where the reference TRP and other TRPs belong to multiple TRPs, the reference TRP group and other TRP groups belong to multiple TRP groups, and multiple TRP or multiple TRP groups provide data services for terminal devices, thereby effectively improving the indication effect of FD basis vector indication information on FD basis vector related information.
  • the embodiment of the present disclosure also provides an indication method.
  • the codebook parameter information also includes: a reference number.
  • the number of codebook parameters is any of the following: the number of FD basis vectors configured for each TRP or each TRP group. ;The total number of FD basis vectors configured for all TRPs or TRP groups; the number of SD and FD basis vector pairs configured for each TRP or each TRP group; the configured SD and FD basis vectors for all TRPs or TRP groups The total number of pairs can enrich the indication content of the codebook parameter information and effectively improve the reliability of the indication process.
  • the embodiment of the present disclosure also provides an indication method.
  • the reference number is any one of the following: the number of PMIs indicated by the precoding matrix and the number of FD basis vectors included in the sliding window, which can ensure the reliability of the reference number in the indication process. .
  • the embodiment of the present disclosure also provides an indication method.
  • the indication information of the SD basis vector and the pair of SD and FD basis vectors is used to indicate at least one of the following: indicating the index value of the SD basis vector corresponding to each TRP, indicating The index value of the FD basis vector corresponding to each TRP, the index value indicating the pair of SD and FD basis vectors corresponding to each TRP, the index value indicating the SD basis vector corresponding to each TRP group, the index value indicating the pair of SD and FD basis vectors corresponding to each TRP
  • the index value of the FD basis vector corresponding to the group indicates the index value of the SD and FD basis vector pair corresponding to each TRP group.
  • the network device configures codebook parameter information for the terminal device.
  • the codebook parameter information indicates the number of ports selected by the terminal, the number of SD basis vectors, the number of FD basis vectors, and the number of pairs of SD and FD basis vectors. Or multiple; these parameter information corresponding to different TRP configured on the network device may be the same or different.
  • the network uses the received port selection, SD basis vector, FD basis vector or indication information of SD and FD basis vector pair and/or basis vector information to calculate the precoding for data transmission according to the corresponding codebook structure.
  • Port selection The port indication information corresponding to each layer is the same;
  • SD basis vector The SD basis vector indication information corresponding to each layer is the same;
  • the FD basis vector indication information corresponding to each layer is different;
  • the SD and FD basis vector pairs When the basis vector is a DFT basis vector, the SD and FD basis vector pairs: the SD and FD basis vectors corresponding to each layer are the same or different;
  • the SD and FD basis vector pairs the SD and FD basis vectors corresponding to each layer are the same.
  • Embodiment 1 Report the indication of the FD basis vector, and the FD basis vector is the DFT basis vector.
  • the SD and FD basis vectors are both DFT basis vectors, and the UE selects the SD and FD basis vectors corresponding to each TRP based on the channels from different TRPs to the UE.
  • For the FD base vector if the UE uses the traditional method to report the FD base vector corresponding to each TRP separately, it needs to in Indicates that M i FD basis vectors are selected from N 3 , and N indicates the number of TRP/TRP groups.
  • This instruction reporting method can save 2 bits of overhead compared with the traditional method.
  • Embodiment 2 Joint reporting indication of SD and FD basis vector pairs, where the basis vectors are feature vectors.
  • the FD basis vector be the eigenvector and the k-th eigenvector be v k
  • the S orthogonal basis vectors be the DFT basis vectors
  • the s-th DFT basis vector be defined as v s
  • the matrix composed of the S basis vectors be B
  • S weighting coefficients c B H v k .
  • the terminal reports the indication information of the S DFT basis vectors and the indication information of the S weighting coefficients to the gNB.
  • the information that the SD basis vector and the SD and FD basis vectors are feature vectors can be reported to the network device through the orthogonal basis vector and the weight value of each orthogonal basis vector.
  • FIG. 11 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure.
  • the communication device 110 shown in FIG. 11 may include a transceiver module 1101 and a processing module 1102.
  • the transceiving module 1101 may include a sending module and/or a receiving module.
  • the sending module is used to implement the sending function
  • the receiving module is used to implement the receiving function.
  • the transceiving module 1101 may implement the sending function and/or the receiving function.
  • the communication device 110 may be a terminal device (such as the terminal device in the foregoing method embodiment), a device in the terminal device, or a device that can be used in conjunction with the terminal device.
  • the communication device 110 may be a network device (such as the network device in the foregoing method embodiment), a device in the network device, or a device that can be used in conjunction with the network device.
  • Communication device 110 on the terminal equipment side, the device includes:
  • the codebook parameter information indicated by the network device includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group;
  • the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group, and the index value is related to the number of codebook parameters.
  • codebook parameters include at least one of the following:
  • the instruction information includes at least one of the following:
  • indication information of FD basis vector used to indicate at least one of the following:
  • the reference TRP and other TRPs belong to multiple TRPs
  • the reference TRP group and other TRP groups belong to multiple TRP groups
  • multiple TRPs or multiple TRP groups provide data services for terminal devices.
  • the device also includes:
  • the processing module 1102 is used to make a difference between the index value of the FD basis vector corresponding to each TRP and the index value of the reference FD basis vector to obtain the index value of the relative FD basis vector corresponding to each TRP; group the index value with each TRP The index value of the corresponding FD basis vector is compared with the index value of the reference FD basis vector to obtain the index value of the relative FD basis vector corresponding to each TRP group.
  • the codebook parameter information also includes: the reference number; the number of codebook parameters includes: the number of FD basis vectors configured for each TRP or each TRP group; the transceiver module 1101 is also used to:
  • the indication information of the FD basis vector is sent to the network device; wherein the indication information of the FD basis vector is used to indicate at least one of the following:
  • the codebook parameter information also includes: the number of references; the number of codebook parameters includes: the number of FD basis vectors configured for the reference TRP or reference TRP group; the processing module 1102 is also used to:
  • the first indication value is obtained by processing the reference number and the number of FD basis vectors configured for the reference TRP or reference TRP group based on the first indication method, where the first indication value is used to indicate the FD basis corresponding to the reference TRP or reference TRP group.
  • the index value of the vector is obtained by processing the reference number and the number of FD basis vectors configured for the reference TRP or reference TRP group based on the first indication method, where the first indication value is used to indicate the FD basis corresponding to the reference TRP or reference TRP group.
  • the first instruction method includes:
  • M i -1 FD basis vectors are selected from N 3 -1 FD basis vectors, Rounding up, N 3 represents the reference number, M i represents the number of FD basis vectors configured for the reference TRP or reference TRP group, i represents the sequence number of the reference TRP in multiple TRPs, or represents the reference TRP group in multiple TRPs. The sequence number in the group.
  • the codebook parameter information also includes: the reference number; the number of codebook parameters includes: the number of FD basis vectors configured for each other TRP or each other TRP group; the processing module 1102 is also used to:
  • the reference number and the number of FD basis vectors configured for each other TRP or each other TRP group are obtained to obtain a second indication value.
  • the second indication value is used to indicate the connection with each other TRP or each other The index value of the FD basis vector corresponding to the TRP group;
  • the second instruction method includes:
  • N 3 represents the reference number
  • M i represents the number of FD basis vectors configured for each other TRP or each other TRP group
  • i represents the sequence number of each other TRP in multiple TRPs, or represents each The sequence number of other TRP groups in multiple TRP groups.
  • the codebook parameter information also includes: the reference number; the number of codebook parameters includes: the total number of FD basis vectors configured for all TRPs or TRP groups;
  • the transceiver module 1101 is also used for:
  • the indication information of the FD basis vector is used to indicate at least one of the following:
  • the codebook parameter information also includes: the reference number; the number of codebook parameters includes: the total number of FD basis vectors configured for all TRPs or TRP groups; the processing module 1102 is also used to:
  • the third instruction method includes:
  • N 3 represents the reference number
  • M represents the total number of FD basis vectors configured for all TRPs or TRP groups.
  • the codebook parameter information also includes: reference quantity; the processing module 1102 is also used to:
  • the fourth instruction method includes:
  • N 3 represents the reference quantity.
  • the reference quantity is any of the following:
  • the precoding matrix indicates the number of PMIs
  • the reference TRP is any of the following:
  • TRP corresponding to the largest first reference amplitude among multiple first reference amplitudes
  • the first description value is any of the following:
  • the port group index value corresponding to the TRP is the same as the TRP.
  • the reference TRP group is any of the following:
  • the TRP group corresponding to the largest second reference amplitude among multiple second reference amplitudes
  • the second description value is any of the following:
  • the port group index value corresponding to the TRP group is the port group index value corresponding to the TRP group.
  • the indication information of the SD basis vector and the pair of SD and FD basis vectors is used to indicate at least one of the following:
  • the basis vector is the discrete Fourier transform DFT basis vector.
  • the transceiver module 1101 is also used for:
  • the indication information of the DFT basis vector is sent, where the indication information of the DFT basis vector is used to indicate any of the following:
  • the index value of the FD basis vector corresponding to each TRP group is the index value of the FD basis vector corresponding to each TRP group.
  • the transceiver module 1101 is also used for:
  • the indication information of the SD and FD basis vector pairs is sent;
  • the indication information of the SD and FD basis vector pair is used to indicate at least one of the following:
  • the index value of the SD and FD basis vector pair corresponding to each TRP group is the index value of the SD and FD basis vector pair corresponding to each TRP group.
  • the number of codebook parameters includes: the number of SD and FD basis vector pairs configured for each TRP or each TRP group, and the total number of SD and FD basis vector pairs configured for all TRPs or TRP groups;
  • the processing module 1102 is also used for:
  • the total number of SD and FD basis vector pairs and the number of SD and FD basis vector pairs are processed to obtain a fifth indicator value.
  • the fifth indicator value is used to indicate the SD and FD basis vector pair corresponding to each TRP or each TRP group. index value;
  • the fifth instruction method includes:
  • X represents the total number of SD and FD basis vector pairs configured for all TRP or TRP groups
  • Y i represents the number of SD and FD basis vector pairs configured for each TRP or each TRP group
  • i represents The sequence number of each TRP in multiple TRPs, or the sequence number of each TRP group in multiple TRP groups.
  • the basis vector is a feature vector
  • the processing module 1102 is also used for:
  • the transceiver module 1101 is also used for:
  • the indication information of the feature vector is used to indicate any of the following:
  • the basis vector is a feature vector
  • the processing module 1102 is also used for:
  • the transceiver module 1101 is also used for:
  • the indication information of the feature vector is sent.
  • the transceiver module 1101 is also used for:
  • the network device Based on the second period, the network device is indicated with a combination coefficient corresponding to the TRP, wherein the first period is greater than the second period.
  • the number of data transmission layers is multiple; wherein the indication information satisfies at least one of the following:
  • the indication information of the CSI-RS port corresponding to each data transmission layer is the same;
  • the indication information of the SD basis vector corresponding to each data transmission layer is the same;
  • the indication information of the FD basis vector corresponding to each data transmission layer is different;
  • the indication information of the SD and FD basis vector pairs corresponding to each data transmission layer is the same or different, where the basis vector is the DFT basis vector;
  • the indication information of the SD and FD basis vector pairs corresponding to each data transmission layer is the same, where the basis vector is a feature vector.
  • the terminal device can obtain the codebook parameter information indicated by the network device, where the codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group, and sends the instruction to the network device.
  • Information where the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group.
  • the index value is related to the number of codebook parameters, which can effectively improve the codebook parameter corresponding indication overhead while reducing Instructions for codebook parameters.
  • Communication device 110 on the network device side, the device includes:
  • the transceiver module 1101 is used to indicate codebook parameter information to the terminal device, where the codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group; receiving indication information sent by the terminal device, where, The indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group.
  • the index value is related to the number of codebook parameters.
  • codebook parameters include at least one of the following:
  • the instruction information includes at least one of the following:
  • indication information of FD basis vector used to indicate at least one of the following:
  • the reference TRP and other TRPs belong to multiple TRPs
  • the reference TRP group and other TRP groups belong to multiple TRP groups
  • multiple TRPs or multiple TRP groups provide data services for terminal devices.
  • the codebook parameter information also includes: reference quantity.
  • the number of codebook parameters is any of the following:
  • the reference quantity is any of the following:
  • the precoding matrix indicates the number of PMIs
  • the indication information of the SD basis vector and the pair of SD and FD basis vectors is used to indicate at least one of the following:
  • the network device can indicate codebook parameter information to the terminal device, where the codebook parameter information includes: the number of codebook parameters configured for the transmission receiving node TRP or TRP group, the instruction sent by the receiving terminal device Information, where the indication information is used to indicate the index value of the codebook parameter selected by the terminal device for the TRP or TRP group.
  • the index value is related to the number of codebook parameters.
  • FIG 12 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure.
  • the communication device 120 may be a network device (such as the network device in the foregoing method embodiment), a terminal device (such as the terminal device in the foregoing method embodiment), or a chip or chip system that supports the network device to implement the above method. , or processor, etc., or it can also be a chip, chip system, or processor that supports the terminal device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment. For details, please refer to the description in the above method embodiment.
  • Communication device 120 may include one or more processors 1201.
  • the processor 1201 may be a general-purpose processor or a special-purpose processor, or the like.
  • it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data.
  • the central processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs. , processing data for computer programs.
  • the communication device 120 may also include one or more memories 1202, on which a computer program 1204 may be stored, and the processor 1201 may store a computer program 1203.
  • the processor 1201 executes the computer program 1204 and/or Computer program 1203, so that the communication device 120 executes the method described in the above method embodiment.
  • the memory 1202 may also store data.
  • the communication device 120 and the memory 1202 can be provided separately or integrated together.
  • the communication device 120 may also include a transceiver 1205 and an antenna 1206.
  • the transceiver 1205 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is used to implement transceiver functions.
  • the transceiver 1205 may include a receiver and a transmitter.
  • the receiver may be called a receiver or a receiving circuit, etc., used to implement the receiving function;
  • the transmitter may be called a transmitter, a transmitting circuit, etc., used to implement the transmitting function.
  • the communication device 120 may also include one or more interface circuits 1207.
  • the interface circuit 1207 is used to receive code instructions and transmit them to the processor 1201 .
  • the processor 1201 executes the code instructions to cause the communication device 120 to perform the method described in the above method embodiment.
  • the processor 1201 may include a transceiver for implementing receiving and transmitting functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits used to implement the receiving and transmitting functions can be separate or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit can be used for reading and writing codes/data, or the above-mentioned transceiver circuit, interface or interface circuit can be used for signal transmission or transfer.
  • the processor 1201 may store a computer program 1203, and the computer program 1203 runs on the processor 1201, causing the communication device 120 to perform the method described in the above method embodiment.
  • the computer program 1203 may be solidified in the processor 1201, in which case the processor 1201 may be implemented by hardware.
  • the communication device 120 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure can be implemented in integrated circuits (ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards (printed circuit boards). circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS n-type metal oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device (such as the network device in the aforementioned method embodiment) or a terminal device (such as the terminal device in the aforementioned method embodiment), but the scope of the communication device described in the present disclosure is not limited to Furthermore, the structure of the communication device may not be limited by FIG. 12 .
  • the communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • the IC collection may also include storage components for storing data and computer programs;
  • the communication device may be a chip or a chip system
  • the schematic structural diagram of the chip shown in FIG. 13 refer to the schematic structural diagram of the chip shown in FIG. 13 .
  • the chip shown in Figure 13 includes a processor 1301 and an interface 1302.
  • the number of processors 1301 may be one or more, and the number of interfaces 1302 may be multiple.
  • the processor 1301 is used to implement S103 and S203 in Figure 3, or is used to implement S105 in Figure 5, or is used to implement S106 in Figure 6, etc.
  • the interface 1302 is used to implement S102 and S202 in Figure 2, or to implement S104 in Figure 4, or to implement S109 in Figure 9, etc.
  • Interface 1302 is used to implement S110 and S210 in Figure 10.
  • the chip also includes a memory 1303, which is used to store necessary computer programs and data.
  • Embodiments of the present disclosure also provide a communication system, which includes a communication device as a network device (such as a network device in the above method embodiment) in the embodiment of FIG. 11 and a terminal device (such as a terminal in the above method embodiment). equipment), or the system includes the communication device as a network device (such as the network device in the previous method embodiment) in the aforementioned embodiment of FIG. 12 and a communication device as a terminal device (such as the terminal device in the aforementioned method embodiment) Communication device.
  • a communication device as a network device (such as a network device in the above method embodiment) in the embodiment of FIG. 11 and a terminal device (such as a terminal in the above method embodiment). equipment), or the system includes the communication device as a network device (such as the network device in the previous method embodiment) in the aforementioned embodiment of FIG. 12 and a communication device as a terminal device (such as the terminal device in the aforementioned method embodiment) Communication device.
  • the present disclosure also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any of the above method embodiments are implemented.
  • the present disclosure also provides a computer program product, which, when executed by a computer, implements the functions of any of the above method embodiments.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer programs.
  • the computer program When the computer program is loaded and executed on a computer, the processes or functions described in accordance with the embodiments of the present disclosure are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program may be stored in or transferred from one computer-readable storage medium to another, for example, the computer program may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated.
  • the usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks, SSD)) etc.
  • magnetic media e.g., floppy disks, hard disks, magnetic tapes
  • optical media e.g., high-density digital video discs (DVD)
  • DVD digital video discs
  • semiconductor media e.g., solid state disks, SSD
  • At least one in the present disclosure can also be described as one or more, and the plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D” etc.
  • the technical features described in “first”, “second”, “third”, “A”, “B”, “C” and “D” are in no particular order or order.
  • each table in this disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which is not limited by this disclosure.
  • it is not necessarily required to configure all the correspondences shown in each table.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables may also be other names understandable by the communication device, and the values or expressions of the parameters may also be other values or expressions understandable by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables. wait.
  • Predefinition in this disclosure may be understood as definition, pre-definition, storage, pre-storage, pre-negotiation, pre-configuration, solidification, or pre-burning.

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Abstract

本公开实施例公开了一种指示方法、装置、设备及存储介质,可以应用于通信系统中,该方法包括:获取网络设备指示的码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量,向网络设备发送指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关。通过实施本公开的方法,能够在减少码本参数对应指示开销的同时,有效提升对于码本参数的指示效果。

Description

指示方法、装置、设备及存储介质 技术领域
本公开涉及通信技术领域,尤其涉及一种指示方法、装置、设备及存储介质。
背景技术
在通信系统中,由于小区边缘用户的信号接收信号强度可能较低,使得边缘用户体验差,影响系统的频谱效率。为了改善边缘覆盖,为服务区内各用户提供均衡的服务质量,可以采用多点协作传输技术。不同于单点传输,如单个传输点(transmission/receptionpoint,TRP)或面板(Panel),多点协作传输是指多个TRP(Multiple Transmission and Reception Point,Multi-TRP)/panel为一个用户提供数据服务。多点协作传输技术大致可分为相干传输(CJT)和非相干传输(NCJT)两种。所谓CJT是指每个数据流会通过加权向量映射到参与协作的m-TRP/Panel上。CJT相当于把多个子阵拼接称为一个更高维度的虚拟阵列,以获得更高的赋形或预编码增益。
直接采用现有技术,在基于码本的预编码过程中,码本参数的指示开销较大。
发明内容
本公开实施例提供一种指示方法、装置、设备、芯片系统、存储介质、计算机程序及计算机程序产品,可应用于通信技术领域中,能够在减少码本参数对应指示开销的同时,有效提升对于码本参数的指示效果。
第一方面,本公开实施例提供一种指示方法,应用于终端设备,该方法包括:
获取网络设备指示的码本参数信息,其中,所述码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;
向所述网络设备发送指示信息,其中,所述指示信息用于指示所述终端设备为所述TRP或TRP组所选择的码本参数的索引值,所述索引值与所述码本参数的数量相关。
在一种实施方式中,所述码本参数包括以下至少一项:
频域FD基向量;
空域SD基向量;
SD与FD基向量对;
信道状态信息参考信号CSI-RS端口。
在一种实施方式中,所述指示信息包括以下至少一项:
FD基向量的指示信息;
SD基向量的指示信息;
SD与FD基向量对的指示信息;
CSI-RS端口的指示信息;
多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;
多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个 窗内。
在一种实施方式中,所述FD基向量的指示信息,用于指示以下至少一项:
指示与参考TRP对应的FD基向量的索引值;
指示与参考TRP组对应的FD基向量的索引值;
指示与每个其他TRP对应的FD基向量的索引值;
指示与每个其他TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
指示参考FD基向量的索引值;
其中,所述参考TRP和所述其他TRP属于所述多个TRP,所述参考TRP组和所述其他TRP组属于所述多个TRP组,所述多个TRP或所述多个TRP组为所述终端设备提供数据服务。
在一种实施方式中,所述方法还包括:
将与所述每个TRP对应的FD基向量的索引值与所述参考FD基向量的索引值作差,得到所述每个TRP对应的相对FD基向量的索引值;
将与所述每个TRP组对应的FD基向量的索引值与所述参考FD基向量的索引值作差,得到所述每个TRP组对应的相对FD基向量的索引值。
在一种实施方式中,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为每个TRP或每个TRP组配置的FD基向量的数量;所述向所述网络设备发送指示信息,包括:
根据所述参考数量和所述FD基向量的数量,向所述网络设备发送所述FD基向量的指示信息;其中,所述FD基向量的指示信息用于指示以下至少一项:
指示与参考TRP对应的FD基向量的索引值;
指示与参考TRP组对应的FD基向量的索引值;
指示与每个其他TRP对应的FD基向量的索引值;
指示与每个其他TRP组对应的FD基向量的索引值。
在一种实施方式中,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为参考TRP或参考TRP组配置的FD基向量的数量;
则所述方法还包括:
基于第一指示方法处理所述参考数量和所述为参考TRP或参考TRP组配置的FD基向量的数量,得到第一指示值,其中,所述第一指示值用于指示与所述参考TRP或所述参考TRP组对应的FD基向量的索引值;
所述第一指示方法包括:
Figure PCTCN2022109262-appb-000001
Figure PCTCN2022109262-appb-000002
表示从N 3-1个FD基向量中选择M i-1个FD基向量,
Figure PCTCN2022109262-appb-000003
为向上取整,N 3表示所述参考数量,M i表示为参考TRP或参考TRP组配置的FD基向量的数量,i表示参考TRP在多个TRP中的序 号,或者表示参考TRP组在多个TRP组中的序号。
在一种实施方式中,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为每个其他TRP或每个其他TRP组配置的FD基向量的数量;
则所述方法还包括:
基于第二指示方法处理所述参考数量和所述为每个其他TRP或每个其他TRP组配置的FD基向量的数量,得到第二指示值,所述第二指示值用于指示与所述每个其他TRP或每个其他TRP组对应的FD基向量的索引值;
所述第二指示方法包括:
Figure PCTCN2022109262-appb-000004
Figure PCTCN2022109262-appb-000005
表示从N 3个FD基向量中选择M i个FD基向量,
Figure PCTCN2022109262-appb-000006
为向上取整,N 3表示所述参考数量,M i表示为每个其他TRP或每个其他TRP组配置的FD基向量的数量,i表示每个其他TRP在多个TRP中的序号,或者表示每个其他TRP组在多个TRP组中的序号。
在一种实施方式中,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;
其中,所述向所述网络设备发送指示信息,包括:
根据所述参考数量和/或所述FD基向量的总数量,发送所述FD基向量的指示信息;
其中,所述FD基向量的指示信息用于指示以下至少一项:
指示与多个TRP中每个TRP对应的FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
指示参考FD基向量的索引值。
在一种实施方式中,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;
则所述方法还包括:
基于第三指示方法处理所述参考数量和所述FD基向量的总数量,得到第三指示值,所述第三指示值用于指示与每个TRP或每个TRP组对应的FD基向量的索引值;
所述第三指示方法包括:
Figure PCTCN2022109262-appb-000007
其中,
Figure PCTCN2022109262-appb-000008
表示从N 3-1个FD基向量中选择M-1个FD基向量,
Figure PCTCN2022109262-appb-000009
为向上取整,N 3表示所述参考数量,M表示所述为所有TRP或TRP组所配置的FD基向量的总数量。
在一种实施方式中,所述码本参数信息还包括:参考数量;
则所述方法还包括:
基于第四指示方法处理所述参考数量,得到第四指示值,所述第四指示值用于指示参考FD基向量的索引值;
所述第四指示方法包括:
Figure PCTCN2022109262-appb-000010
其中,
Figure PCTCN2022109262-appb-000011
表示从N 3个FD基向量中选择1个FD基向量,
Figure PCTCN2022109262-appb-000012
为向上取整,N 3表示所述参考数量。
在一种实施方式中,所述参考数量是以下任一项:
预编码矩阵指示PMI的数量;
滑动窗口所包含FD基向量的数量。
在一种实施方式中,所述参考TRP是以下任一项:
多个第一层1参考信号接收功率L1-RSRP中值最大第一L1-RSRP对应的TRP,每个所述第一L1-RSRP对应一个所述TRP;
多个第一组合系数中幅度最大的第一组合系数对应的TRP;
多个第一参考幅度中最大的第一参考幅度对应的TRP;
多个第一描述值中最小或最大第一描述值对应的TRP,每个所述第一描述值对应一个所述TRP。
在一种实施方式中,所述第一描述值是以下任一项:
与所述TRP对应的FD基向量的索引值;
与所述TRP对应的CSI-RS资源中的资源标识号ID;
与所述TRP对应的端口组索引值。
在一种实施方式中,所述参考TRP组是以下任一项:
多个第二L1-RSRP中值最大第二L1-RSRP对应的TRP组,每个所述第二L1-RSRP对应一个所述TRP组;
多个第二组合系数中幅度最大的第二组合系数对应的TRP组;
多个第二参考幅度中最大的第二参考幅度对应的TRP组;
多个第二描述值中最小或最大第二描述值对应的TRP组,每个所述第二描述值对应一个所述TRP组。
在一种实施方式中,所述第二描述值是以下任一项:
与所述TRP组对应的FD基向量的索引值;
与所述TRP组对应的CSI-RS资源中的资源标识号ID;
与所述TRP组对应的端口组索引值。
在一种实施方式中,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:
指示与每个TRP对应的SD基向量的索引值;
指示与每个TRP对应的FD基向量的索引值;
指示与每个TRP对应的SD与FD基向量对的索引值;
指示与每个TRP组对应的SD基向量的索引值;
指示与每个TRP组对应的FD基向量的索引值;
指示与每个TRP组对应的SD与FD基向量对的索引值。
在一种实施方式中,所述基向量为离散傅里叶变换DFT基向量,所述向所述网络设备发送指示信息,包括:
根据所述码本参数的数量,发送所述DFT基向量的指示信息,其中,所述DFT基向量的指示信息用于指示以下任一项:
与每个TRP对应的SD基向量的索引值;
与每个TRP对应的FD基向量的索引值;
与每个TRP组对应的SD基向量的索引值;
与每个TRP组对应的FD基向量的索引值。
在一种实施方式中,所述向所述网络设备发送指示信息,包括:
根据所述码本参数的数量,发送所述SD与FD基向量对的指示信息;
其中,所述SD与FD基向量对的指示信息用于指示以下至少一项:
与每个TRP对应的SD与FD基向量对的索引值;
与每个TRP组对应的SD与FD基向量对的索引值。
在一种实施方式中,所述码本参数的数量包括:为每个TRP或每个TRP组配置的SD与FD基向量对的数量,以及为所有TRP或TRP组所配置SD与FD基向量对的总数量;则所述方法还包括:
处理所述SD与FD基向量对的总数量和所述SD与FD基向量对的数量,得到第五指示值,所述第五指示值用于指示与每个TRP或每个TRP组对应的SD与FD基向量对的索引值;
所述第五指示方法包括:
Figure PCTCN2022109262-appb-000013
其中,
Figure PCTCN2022109262-appb-000014
表示从X个SD与FD基向量对中选择Y i个SD与FD基向量对,
Figure PCTCN2022109262-appb-000015
为向上取整,X表示为所有TRP或TRP组所配置SD与FD基向量对的总数量,Y i表示为每个TRP或每个TRP组配置的SD与FD基向量对的数量,i表示每个TRP在多个TRP中的序号,或者表示每个TRP组在多个TRP组中的序号。
在一种实施方式中,所述基向量为特征向量,所述方法还包括:
确定所述特征向量中每个系数对应的幅度和/或相位;
根据所述幅度和/或相位,发送所述特征向量的指示信息;
其中,所述特征向量的指示信息用于指示以下任一项:
与所述每个系数对应幅度的指示信息;
与所述每个系数对应相位的指示信息。
在一种实施方式中,所述基向量为特征向量,所述方法还包括:
确定所述特征向量中的多个正交基向量,以及与每个正交基向量对应的权重值;
根据所述正交基向量和所述权重值,发送所述特征向量的指示信息。
在一种实施方式中,所述方法还包括:
基于第一周期,向所述网络设备发送指示信息;
基于第二周期,向所述网络设备指示与所述TRP对应的组合系数,其中,所述第一周期大于所述第二周期。
在一种实施方式中,数据传输层的数量是多个;其中,指示信息满足如下中的至少一项:
与每层数据传输层对应的CSI-RS端口的指示信息相同;
与每层数据传输层对应的SD基向量的指示信息相同;
与每层数据传输层对应的FD基向量的指示信息不同;
与每层数据传输层对应的SD与FD基向量对的指示信息相同或不同,其中,所述基向量是DFT基向量;
与每层数据传输层对应的SD与FD基向量对的指示信息相同,其中,所述基向量是特征向量。
第二方面,本公开实施例提供另一种指示方法,应用于网络设备,该方法包括:
向终端设备指示码本参数信息,其中,所述码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;
接收所述终端设备发送的指示信息,其中,所述指示信息用于指示所述终端设备为所述TRP或TRP组所选择的码本参数的索引值,所述索引值与所述码本参数的数量相关。
在一种实施方式中,所述码本参数包括以下至少一项:
频域FD基向量;
空域SD基向量;
SD与FD基向量对;
信道状态信息参考信号CSI-RS端口。
在一种实施方式中,所述指示信息包括以下至少一项:
FD基向量的指示信息;
SD基向量的指示信息;
SD与FD基向量对的指示信息;
与数据传输层对应的端口的指示信息;
多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;
多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内。
在一种实施方式中,所述FD基向量的指示信息,用于指示以下至少一项:
指示与参考TRP对应的FD基向量的索引值;
指示与参考TRP组对应的FD基向量的索引值;
指示与每个其他TRP对应的FD基向量的索引值;
指示与每个其他TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
指示参考FD基向量的索引值;
其中,所述参考TRP和所述其他TRP属于所述多个TRP,所述参考TRP组和所述其他TRP组属于所述多个TRP组,所述多个TRP或所述多个TRP组为所述终端设备提供数据服务。
在一种实施方式中,所述码本参数信息还包括:参考数量,所述码本参数的数量是以下任一项:
为每个TRP或每个TRP组配置的FD基向量的数量;
为所有TRP或TRP组所配置的FD基向量的总数量;
为每个TRP或每个TRP组配置的SD与FD基向量对的数量;
为所有TRP或TRP组所配置SD与FD基向量对的总数量。
在一种实施方式中,所述参考数量是以下任一项:
预编码矩阵指示PMI的数量;
滑动窗口所包含FD基向量的数量。
在一种实施方式中,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:
指示与每个TRP对应的SD基向量的索引值;
指示与每个TRP对应的FD基向量的索引值;
指示与每个TRP对应的SD与FD基向量对的索引值;
指示与每个TRP组对应的SD基向量的索引值;
指示与每个TRP组对应的FD基向量的索引值;
指示与每个TRP组对应的SD与FD基向量对的索引值。
第三方面,本公开实施例提供一种指示装置,该指示装置具有实现上述第一方面所述的方法中终端设备的部分或全部功能,比如指示装置的功能可具备本公开中的部分或全部实施例中的功能,也可以具备单独实施本公开中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的,在本公开的一个实施例之中,该指示装置的结构中可包括收发模块和处理模块,所述处理模块被配置为支持指示装置执行上述方法中相应的功能。所述收发模块用于支持指示装置与其他设备之间的通信。所述指示装置还可以包括存储模块,所述存储模块用于与收发模块和处理模块耦合,其保存指示装置必要的计算机程序和数据。
作为示例,处理模块可以为处理器,收发模块可以为收发器或通信接口,存储模块可以为存储器。
第四方面,本公开实施例提供另一种指示装置,该指示装置具有实现上述第二方面所述的方法示例中网络设备的部分或全部功能,比如指示装置的功能可具备本公开中的部分或全部实施例中的功能,也可以具备单独实施本公开中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
可选的,在本公开的一个实施例之中,该指示装置的结构中可包括收发模块和处理模块,该处理模块被配置为支持指示装置执行上述方法中相应的功能。收发模块用于支持指示装置与其他设备之间的通信。所述指示装置还可以包括存储模块,所述存储模块用于与收发模块和处理模块耦合,其保存指示装置必要的计算机程序和数据。
第五方面,本公开实施例提供一种通信装置,该通信装置包括处理器,当该处理器调用存储器中的计算机程序时,执行上述第一方面所述的指示方法。
第六方面,本公开实施例提供一种通信装置,该通信装置包括处理器,当该处理器调用存储器中的计算机程序时,执行上述第二方面所述的指示方法。
第七方面,本公开实施例提供一种通信装置,该通信装置包括处理器和存储器,该存储器中存储有计算机程序;所述处理器执行该存储器所存储的计算机程序,以使该通信装置执行上述第一方面所述的指示方法。
第八方面,本公开实施例提供一种通信装置,该通信装置包括处理器和存储器,该存储器中存储有计算机程序;所述处理器执行该存储器所存储的计算机程序,以使该通信装置执行上述第二方面所述的指示方法。
第九方面,本公开实施例提供一种通信装置,该装置包括处理器和接口电路,该接口电路用于接收代码指令并传输至该处理器,该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的指示方法。
第十方面,本公开实施例提供一种通信装置,该装置包括处理器和接口电路,该接口电路用于接收代码指令并传输至该处理器,该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的指示方法。
第十一方面,本公开实施例提供一种通信系统,该系统包括第三方面所述的指示装置以及第四方面所述的指示装置,或者,该系统包括第五方面所述的通信装置以及第六方面所述的通信装置,或者,该系统包括第七方面所述的通信装置以及第八方面所述的通信装置,或者,该系统包括第九方面所述 的通信装置以及第十方面所述的通信装置。
第十二方面,本公开实施例提供一种计算机可读存储介质,用于储存为上述终端设备所用的指令,当所述指令被执行时,使所述终端设备执行上述第一方面所述的指示方法。
第十三方面,本公开实施例提供一种可读存储介质,用于储存为上述网络设备所用的指令,当所述指令被执行时,使所述网络设备执行上述第二方面所述的指示方法。
第十四方面,本公开还提供一种包括计算机程序的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面所述的指示方法。
第十五方面,本公开还提供一种包括计算机程序的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第二方面所述的指示方法。
第十六方面,本公开提供一种芯片系统,该芯片系统包括至少一个处理器和接口,用于支持终端设备实现第一方面所涉及的功能,例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存终端设备必要的计算机程序和数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十七方面,本公开提供一种芯片系统,该芯片系统包括至少一个处理器和接口,用于支持网络设备实现第二方面所涉及的功能,例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。
在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存网络设备必要的计算机程序和数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十八方面,本公开提供一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面所述的指示方法。
第十九方面,本公开提供一种计算机程序,当其在计算机上运行时,使得计算机执行上述第二方面所述的指示方法。
综上所述,在本公开实施例提供的指示方法、装置、设备、芯片系统、存储介质、计算机程序及计算机程序产品,可以实现以下技术效果:
通过获取网络设备指示的码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量,向网络设备发送指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关,能够在减少码本参数对应指示开销的同时,有效提升对于码本参数的指示效果。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案,下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1为本公开实施例提供的一种通信系统的架构示意图;
图2是本公开实施例提供的一种指示方法的流程示意图;
图3是本公开实施例提供的另一种指示方法的流程示意图;
图4是本公开实施例提供的另一种指示方法的流程示意图;
图5是本公开实施例提供的另一种指示方法的流程示意图;
图6是本公开实施例提供的另一种指示方法的流程示意图;
图7是本公开实施例提供的另一种指示方法的流程示意图;
图8是本公开实施例提供的另一种指示方法的流程示意图;
图9是本公开实施例提供的另一种指示方法的流程示意图;
图10是本公开实施例提供的又一种指示方法的流程示意图;
图11为本公开实施例提供的一种通信装置的结构示意图;
图12是本公开实施例提供的另一种通信装置的结构示意图;
图13是本公开实施例提供的一种芯片的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开实施例相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本公开实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的,而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式,除非上下文清楚地表示其他含义。还应当理解,本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解,尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息,但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如,在不脱离本公开实施例范围的情况下,第一信息也可以被称为第二信息,类似地,第二信息也可以被称为第一信息。取决于语境,如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
为了便于理解,首先介绍本公开涉及的术语。
1、码本(Codebook)
码本,是指将可用的码放在一块,得到一个表,再使用序号为表中不同的码进行编号,之后直接根据序号在所得表中搜索相关码。在设计通信系统时,可以用若干个预编码矩阵构成一个码本,发射机和接收机预先确定码本的内容。终端设备可以根据信道状态信息参考信号(Channel Status Information-Reference Signal,CSI-RS)测量下行信道,得到信道矩阵。基于预先设定的码本,终端设备可以按照预先配置的优化准则,从码本中选择与当前信道条件最为匹配的预编码矩阵,并通过反馈链路将其预编码矩阵指示(Pre-coding Matrix Indicator,PMI)反馈至网络设备。
2、频域(FrequencyDomain,FD)
频域,是描述信号在频率方面特性时用到的一种坐标系。在电子学,控制系统工程和统计学中,频域图显示了在一个频率范围内每个给定频带内的信号量。频域表示还可以包括每个正弦曲线的相移的信息,以便能够重新组合频率分量以恢复原始时间信号。
3、基向量
基(basis)(也称为基底)是描述、刻画向量空间的基本工具。向量空间的基是它的一个特殊的子集,基的元素称为基向量。
为了更好的理解本公开实施例公开的一种指示方法,下面首先对本公开实施例适用的通信系统进行描述。
请参见图1,图1为本公开实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备和一个终端设备,图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定,实际应用中可以包括两个或两个以上的网络设备,两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备101和一个终端设备102为例。
需要说明的是,本公开实施例的技术方案可以应用于各种通信系统。例如:长期演进(long term evolution,LTE)系统、第五代(5thgeneration,5G)移动通信系统、5G新空口(newradio,NR)系 统,或者其他未来的新型移动通信系统等。
本公开实施例中的网络设备101是网络侧的一种用于发射或接收信号的实体。例如,网络设备101可以为演进型基站(evolvedNodeB,eNB)、传输点(transmission reception point,TRP)、NR系统中的下一代基站(next generation NodeB,gNB)、其他未来移动通信系统中的基站或无线保真(wirelessfidelity,WiFi)系统中的接入节点等。本公开的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
本公开实施例提供的网络设备可以是由集中单元(centralunit,CU)与分布式单元(distributedunit,DU)组成的,其中,CU也可以称为控制单元(controlunit),采用CU-DU的结构可以将网络设备,例如基站的协议层拆分开,部分协议层的功能放在CU集中控制,剩下部分或全部协议层的功能分布在DU中,由CU集中控制DU。
本公开实施例中的终端设备102是用户侧的一种用于接收或发射信号的实体,如手机。终端设备也可以称为终端设备(terminal)、用户设备(userequipment,UE)、移动台(mobilestation,MS)、移动终端设备(mobileterminal,MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobilephone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtualreality,VR)终端设备、增强现实(augmentedreality,AR)终端设备、工业控制(industrialcontrol)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smartgrid)中的无线终端设备、运输安全(transportationsafety)中的无线终端设备、智慧城市(smartcity)中的无线终端设备、智慧家庭(smarthome)中的无线终端设备等等。
本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是,本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案,并不构成对于本公开实施例提供的技术方案的限定,本领域普通技术人员可知,随着系统架构的演变和新业务场景的出现,本公开实施例提供的技术方案对于类似的技术问题,同样适用。
下面结合附图对本公开所提供的指示方法及其装置进行详细地介绍。图2是本公开实施例提供的一种指示方法的流程示意图,该方法由终端设备执行。本实施例中的指示方法可以应用在终端设备中,例如手机或者具备移动通信功能的平板、智能手表等,对此不做限制。
如图2所示,该方法可以包括但不限于如下步骤:
S102:获取网络设备指示的码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量。
其中,码本,可以作为预编码过程中的参考信息,基于码本可以将可用的码组合为一个表,再使用序号为表中不同的码进行编号,之后直接根据序号在所得表中搜索相关码。其中,码本参数信息,是指码本参数对应的相关信息,例如可以是码本参数的上报优先度、上报组合等,对此不做限制。
其中,传输接收节点(TransmissionReception Point,TRP),是指一种为终端设备提供通讯服务的网络设备。而TRP组,是指由多个TRP形成的TRP组合,即一个TRP组中可以包括若干个TRP,多个TRP或多个TRP组为终端设备提供数据服务。
可以理解的是,在指示过程中,所存在的码本参数的数量可能是多个,且指示不同的码本参数可能会影响终端设备的预编码过程,当获取网络设备指示的码本参数信息时,终端设备可以获取准确的码本参数的数量,以有效提升指示过程的准确性。
本公开实施例中还提供了一种指示方法,码本参数包括以下至少一项:频域FD基向量、空域SD基向量、SD与FD基向量对、信道状态信息参考信号CSI-RS端口,可以有效保证所得码本参数在指示过程中的实用性。
可以理解的是,在相干传输过程中,通常采用基于码本的预编码技术,终端设备可以指示上报所选的码本参数的索引值,以用于网络设备侧的预编码的计算,码本参数,例如,频域FD基向量、空域SD基向量、SD与FD基向量对、CSI-RS端口等。
其中,基(basis)(也称为基底)是描述、刻画向量空间的基本工具。向量空间的基是它的一个特殊的子集,基的元素称为基向量。
其中,频域(FrequencyDomain,FD)基向量,是指频域维度的基向量。而空域(Spatial Domain,SD),是指空间域维度的基向量。SD与FD基向量对,是指SD基向量与FD基向量所形成的组合。
其中,信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS),是通信系统 中的一种参考信号,由于无线信道条件可能不断变化,终端设备需要将其看到的下行信道条件通过CSI反馈给网络设备,以便网络设备在下行调度时将信道质量考虑在内。而信道状态信息参考信号CSI-RS端口,可以是指被用于传输信道状态信息参考信号CSI-RS的端口。
举例而言,当存在三个传输接收点(Transmission/ReceptionPoint,TRP)同时基于相干传输技术为同一个终端设备(userequipment,UE)提供服务时,UE到三个TRP的信道可以分别表示为H 1、H 2和H 3。在计算该UE的预编码时,可以把三个信道组合视为一个更高维度的信道即
Figure PCTCN2022109262-appb-000016
然后根据H计算UE的下行数据传输预编码。
在多个TRP进行相干传输时可以采用以下可选的码本结构(Alt1A、Alt1B以及Alt2)的用于计算用户的下行数据传输预编码。
Figure PCTCN2022109262-appb-000017
Figure PCTCN2022109262-appb-000018
Figure PCTCN2022109262-appb-000019
其中,a n和p n分别表示第n个TRP对应的相位与幅度因子。W 1,n表示第n个TRP对应的包含了一个或多个SD基向量,或者为一个或多个单位向量;
Figure PCTCN2022109262-appb-000020
表示n个TRP对应的组合系数;W f,n表示第n个TRP对应的包含一个或多个FD基向量;W SF,n表示第n个TRP对应的包含一个或多个SD和FD基向量对;
Figure PCTCN2022109262-appb-000021
表示N个TRP对应的组合系数;W f表示N个TRP对应的包含一个或多个FD基向量。
可以理解的是,上述SD基向量、FD基向量有和SD与FD基向量对以下四种设计方式:
Alt1:SD基向量和FD基向量分别设计,两种基向量均为传统Rel-16 Type II码本中所用的DFT基向量;
Alt2:SD基向量和FD基向量联合设计,两种基向量均为DFT基向量;
Alt3:SD基向量和FD基向量联合设计,两种基向量均为特征向量;
Alt4:SD基向量和FD基向量分别设计,两种基向量均为特征向量。
S202:向网络设备发送指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关。
其中,指示信息,可以由终端设备生成并发送至网络设备,被用于向网络设备指示码本参数的相关信息。
可以理解的是,本公开实施例中,TRP的数量可能是多个,TRP组的数量也可能是多个。
其中,索引,是一种单独的、物理的对数据库表中一列或多列的值进行排序的一种存储结构,它是某个表中一列或若干列值的集合和相应的指向表中物理标识这些值的数据页的逻辑指针清单。
本实施例中,通过获取网络设备指示的码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量,向网络设备发送指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关,能够在减少码本参数对应指示开销的同时,有效提升对于码本参数的指示效果。
本公开实施例中还提供了一种指示方法,指示信息包括以下至少一项:FD基向量的指示信息;SD基向量的指示信息;SD与FD基向量对的指示信息;CSI-RS端口的指示信息;多个TRP中每个 TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内,由此,可以使指示信息适用于个性化的应用场景和用户需求,从而有效提升指示灵活性。
其中,传输层,是指整个网络体系结构中的层次之一,可以为两个主机中进程之间的通信提供服务。
其中,窗,可以称为窗函数,可以被用于在信号处理过程中截取指定大小的信号。
本公开实施例中还提供了一种指示方法,FD基向量的指示信息,用于指示以下至少一项:指示与参考TRP对应的FD基向量的索引值;指示与参考TRP组对应的FD基向量的索引值;指示与每个其他TRP对应的FD基向量的索引值;指示与每个其他TRP组对应的FD基向量的索引值;指示与多个TRP中每个TRP对应的FD基向量的索引值;指示与多个TRP组中每个TRP组对应的FD基向量的索引值;指示与多个TRP中每个TRP对应的相对FD基向量的索引值;指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;指示参考FD基向量的索引值;其中,参考TRP和其他TRP属于多个TRP,参考TRP组和其他TRP组属于多个TRP组,多个TRP或多个TRP组为终端设备提供数据服务,由此,可以较大程度地丰富FD基向量的指示信息的指示内容,能够有效提升FD基向量的指示信息的实用性,从而以较少的指示开销指示多个TRP/TRP组的FD基向量。
图3是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图3所示,该方法可以包括但不限于如下步骤:
S103:将与每个TRP对应的FD基向量的索引值与参考FD基向量的索引值作差,得到每个TRP对应的相对FD基向量的索引值。
S203:将与每个TRP组对应的FD基向量的索引值与参考FD基向量的索引值作差,得到每个TRP组对应的相对FD基向量的索引值。
本实施例中,通过将与每个TRP对应的FD基向量的索引值与参考FD基向量的索引值作差,得到每个TRP对应的相对FD基向量的索引值,将与每个TRP组对应的FD基向量的索引值与参考FD基向量的索引值作差,得到每个TRP组对应的相对FD基向量的索引值,可以有效提升获取每个TRP或每个TRP组对应的相对FD基向量的索引值过程的可靠性,保证所得索引值的准确性。
图4是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图4所示,该方法可以包括但不限于如下步骤:
S104:根据参考数量和FD基向量的数量,向网络设备发送FD基向量的指示信息。
本公开实施例中的码本参数信息,还可以包括:参考数量;码本参数的数量包括:为每个TRP或每个TRP组配置的FD基向量的数量。
其中,FD基向量的指示信息用于指示以下至少一项:指示与参考TRP对应的FD基向量的索引值;指示与参考TRP组对应的FD基向量的索引值;指示与每个其他TRP对应的FD基向量的索引值;指示与每个其他TRP组对应的FD基向量的索引值。
本实施例中,通过根据参考数量和FD基向量的数量,向网络设备发送FD基向量的指示信息,由此,可以基于参考数量和FD基向量的数量有效提升所得FD基向量的指示信息的准确性,保证所得FD基向量的指示信息对于FD基向量相关信息的指示效果。
本公开实施例中还提供了一种指示方法,参考数量是以下任一项:预编码矩阵指示PMI的数量、滑动窗口所包含FD基向量的数量。
其中,预编码矩阵指示(Pre-coding Matrix Indicator,PMI),可以被用于仅在闭环空间复用发射模 式下,终端设备指示网络设备在为终端设备的物理下行共享信道(Physical Downlink Shared Channel,PDSCH)进行预编码过程中所应使用的预编码矩阵。
其中,滑动窗口,是指基于滑动窗口算法(Sliding window algorithm)所生成的一个窗口,可以被用于在一个特定大小的字符串或数组上进行操作,该窗口的长度可以预先配置,而起始点位置可以实时变化,使该窗口可以在待处理对象中进行滑动。
图5是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图5所示,该方法可以包括但不限于如下步骤:
S105:基于第一指示方法处理参考数量和为参考TRP或参考TRP组配置的FD基向量的数量,得到第一指示值,其中,第一指示值用于指示与参考TRP或参考TRP组对应的FD基向量的索引值。
本公开实施例中的码本参数信息,还可以包括:参考数量;码本参数的数量包括:为参考TRP或参考TRP组配置的FD基向量的数量。
其中,第一指示方法包括:
Figure PCTCN2022109262-appb-000022
Figure PCTCN2022109262-appb-000023
表示从N 3-1个FD基向量中选择M i-1个FD基向量,
Figure PCTCN2022109262-appb-000024
为向上取整,N 3表示参考数量,M i表示为参考TRP或参考TRP组配置的FD基向量的数量,i表示参考TRP在多个TRP中的序号,或者表示参考TRP组在多个TRP组中的序号。
其中,第一指示值,是指基于上述第一指示方法处理参考数量和参考TRP或参考TRP组配置的FD基向量的数量,所得到得数值。
本实施例中,通过基于第一指示方法处理参考数量和为参考TRP或参考TRP组配置的FD基向量的数量,得到第一指示值,其中,第一指示值用于指示与参考TRP或参考TRP组对应的FD基向量的索引值,可以实现对参考数量和参考TRP或参考TRP组配置的FD基向量的数量的运算处理,能够有效提升所得参考TRP或参考TRP组对应的FD基向量的索引值的指示准确性。
图6是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图6所示,该方法可以包括但不限于如下步骤:
S106:基于第二指示方法处理参考数量和为每个其他TRP或每个其他TRP组配置的FD基向量的数量,得到第二指示值,第二指示值用于指示与每个其他TRP或每个其他TRP组对应的FD基向量的索引值。
本公开实施例中的码本参数信息,还可以包括:参考数量;码本参数的数量包括:为每个其他TRP或每个其他TRP组配置的FD基向量的数量。
其中,第二指示方法包括:
Figure PCTCN2022109262-appb-000025
Figure PCTCN2022109262-appb-000026
表示从N 3个FD基向量中选择M i个FD基向量,
Figure PCTCN2022109262-appb-000027
为向上取整,N 3表示参考数量,M i表示为每个其他TRP或每个其他TRP组配置的FD基向量的数量,i表示每个其他TRP在多个TRP中的序号,或者表示每个其他TRP组在多个TRP组中的序号。
其中,第二指示值,是指基于第二指示方法处理参考数量和为每个其他TRP或每个其他TRP组配置的FD基向量的数量所得的数值。
本实施例中,通过基于第二指示方法处理参考数量和为每个其他TRP或每个其他TRP组配置的FD基向量的数量,得到第二指示值,第二指示值用于指示与每个其他TRP或每个其他TRP组对应的FD基向量的索引值,可以基于第二指示处理方法实现对参考数量和为每个其他TRP或每个其他TRP组配置的FD基向量的数量的运算处理,能够有效提升所得第二指示值对于其他TRP或其他TRP组对 应的FD基向量的索引值的指示准确性。
本公开实施例中还提供了一种指示方法,码本参数信息还包括:参考数量,码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;其中,向网络设备发送指示信息,包括:根据参考数量和/或FD基向量的总数量,发送FD基向量的指示信息;其中,FD基向量的指示信息用于指示以下至少一项:指示与多个TRP中每个TRP对应的FD基向量的索引值;指示与多个TRP组中每个TRP组对应的FD基向量的索引值;指示与多个TRP中每个TRP对应的相对FD基向量的索引值;指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;指示参考FD基向量的索引值,由此,可以基于参考数量和/或所有TRP或TRP组对应的FD基向量的总数量,有效提升所发送FD基向量的指示信息的指示准确性。
图7是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图7所示,该方法可以包括但不限于如下步骤:
S107:基于第三指示方法处理参考数量和FD基向量的总数量,得到第三指示值,第三指示值用于指示与每个TRP或每个TRP组对应的FD基向量的索引值。
本公开实施例中的码本参数信息,还可以包括:参考数量;码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量。
其中,第三指示方法包括:
Figure PCTCN2022109262-appb-000028
其中,
Figure PCTCN2022109262-appb-000029
表示从N 3-1个FD基向量中选择M-1个FD基向量,
Figure PCTCN2022109262-appb-000030
为向上取整,N 3表示参考数量,M表示为所有TRP或TRP组所配置的FD基向量的总数量。
其中,第三指示值,是指基于上述第三指示方法处理参考数量和FD基向量的总数量所得到的数值。
本实施例中,通过基于第三指示方法处理参考数量和FD基向量的总数量,得到第三指示值,第三指示值用于指示与每个TRP或每个TRP组对应的FD基向量的索引值,能够有效提升所得第三指示值对于每个TRP或每个TRP组对应的FD基向量的索引值的指示准确性。
图8是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图8所示,该方法可以包括但不限于如下步骤:
S108:基于第四指示方法处理参考数量N 3,得到第四指示值,第四指示值用于指示参考FD基向量的索引值。
本公开实施例中的码本参数信息,还可以包括:参考数量。
其中,第四指示方法包括:
Figure PCTCN2022109262-appb-000031
其中,
Figure PCTCN2022109262-appb-000032
表示从N 3个FD基向量中选择1个FD基向量,
Figure PCTCN2022109262-appb-000033
为向上取整,N 3表示参考数量。
其中,第四指示值,是指基于第四指示方法处理参考数量所得到的数值。
本实施例中,通过基于第四指示方法处理参考数量,得到第四指示值,第四指示值用于指示参考FD基向量的索引值,可以有效提升所得第四指示值对于参考FD基向量的索引值的指示准确性。
本公开实施例中还提供了一种指示方法,参考TRP是以下任一项:多个第一层1参考信号接收功率L1-RSRP中值最大第一L1-RSRP对应的TRP,每个第一L1-RSRP对应一个TRP;多个第一组合系数中幅度最大的第一组合系数对应的TRP;多个第一参考幅度中最大的第一参考幅度对应的TRP;多 个第一描述值中最小或最大第一描述值对应的TRP,每个第一描述值对应一个TRP,可以使参考TRP适用于个性化的应用场景,有效提升该参考TRP在指示过程中的适用性。
其中,参考信号接收功率(Reference signal receiving power),是LTE小区网络中代表无线信号强度的关键参数以及物理层测量需求之一,是某个符号内承载参考信号的所有资源粒子接收到的信号功率的平均值。层1参考信号接收功率(L1-RSRP),即是指物理层对应的参考信号接收功率。而第一层1参考信号接收功率,则是指TRP对应的层1参考信号接收功率。
其中,组合系数,是指在预编码过程中,由多个TRP共同影响的系数。而第一组合系数,则是指TRP对应的组合系数。
其中,第一参考幅度,是指TRP对应的系数幅度。
本公开实施例中还提供了一种指示方法,第一描述值是以下任一项:与TRP对应的FD基向量的索引值;与TRP对应的CSI-RS资源中的资源标识号ID;与TRP对应的端口组索引值,由此,可以有效提升第一描述值可描述内容的丰富性,以适配应用场景中的个性化需求。
其中,信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS),可以被用于获取信道状态信息,测量基站到UE之间的信道,并获取调度和链路自适应所需要的信道状态信息,如预编码矩阵、信道质量信息等。
其中,资源标号ID,是指CSI-RS资源对应的标号。
其中,端口组,是指由多个端口所组成的端口集合。
本公开实施例中还提供了一种指示方法,参考TRP组是以下任一项:多个第二L1-RSRP中值最大第二L1-RSRP对应的TRP组,每个第二L1-RSRP对应一个TRP组;多个第二组合系数中幅度最大的第二组合系数对应的TRP组;多个第二参考幅度中最大的第二参考幅度对应的TRP组;多个第二描述值中最小或最大第二描述值对应的TRP组,每个第二描述值对应一个TRP组,由此,可以为指示过程提供多种确定参考TRP组的方法,以适应于个性化的应用场景。
其中,第二L1-RSRP,是指TRP组对应的层1参考信号接收功率(L1-RSRP)。
其中,第二参考幅度,是指TRP组对应的系数幅度值。
其中,第二组合系数,是指TRP组对应的组合系数。
本公开实施例中还提供了一种指示方法,第二描述值是以下任一项:与TRP组对应的FD基向量的索引值;与TRP组对应的CSI-RS资源中的资源标识号ID;与TRP组对应的端口组索引值,可以保证第二描述值对应TRP组相关信息的描述效果。
公开实施例中还提供了一种指示方法,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:指示与每个TRP对应的SD基向量的索引值;指示与每个TRP对应的FD基向量的索引值;指示与每个TRP对应的SD与FD基向量对的索引值;指示与每个TRP组对应的SD基向量的索引值;指示与每个TRP组对应的FD基向量的索引值;指示与每个TRP组对应的SD与FD基向量对的索引值,可以较大程度地丰富联合指示信息的指示效果,以适配于SD基向量、FD基向量以及SD与FD基向量对之间个性化的联合关系。
图9是本公开实施例提供的另一种指示方法的流程示意图,本实施例中的指示方法可以应用在终端设备中,如图9所示,该方法可以包括但不限于如下步骤:
S109:根据码本参数的数量,发送DFT基向量的指示信息。
本公开实施例中的基向量,可以为离散傅里叶变换DFT基向量。
该基向量,可以是SD基向量、FD基向量,或者SD与FD基向量对中的基向量,对此不做限制。
其中,DFT基向量的指示信息用于指示以下任一项:与每个TRP对应的SD基向量的索引值;与每个TRP对应的FD基向量的索引值;与每个TRP组对应的SD基向量的索引值;与每个TRP组对应的FD基向量的索引值。
本实施例中,基向量为离散傅里叶变换DFT基向量,通过根据码本参数的数量,发送DFT基向量的指示信息,其中,DFT基向量的指示信息用于指示以下任一项:与每个TRP对应的SD基向量的索引值;与每个TRP对应的FD基向量的索引值;与每个TRP组对应的SD基向量的索引值;与每个TRP组对应的FD基向量的索引值,由此,可以在基向量为离散傅里叶变换DFT基向量时,保证所发送DFT基向量的指示信息的指示效果。
本公开实施例中还提供了一种指示方法,包括:根据码本参数的数量,发送SD与FD基向量对的 指示信息;其中,SD与FD基向量对的指示信息用于指示以下至少一项:与每个TRP对应的SD与FD基向量对的索引值;与每个TRP组对应的SD与FD基向量对的索引值,可以有效提升所发送SD与FD基向量对的指示信息对于每个TRP和/或TRP组对应的SD与FD基向量对的索引值的指示准确性。
本公开实施例中还提供了一种指示方法,码本参数的数量包括:为每个TRP或每个TRP组配置的SD与FD基向量对的数量,以及为所有TRP或TRP组所配置SD与FD基向量对的总数量;方法还包括:处理SD与FD基向量对的总数量和SD与FD基向量对的数量,得到第五指示值,第五指示值用于指示与每个TRP或每个TRP组对应的SD与FD基向量对的索引值;第五指示方法包括:
Figure PCTCN2022109262-appb-000034
其中,
Figure PCTCN2022109262-appb-000035
表示从X个SD与FD基向量对中选择Y i个SD与FD基向量对,
Figure PCTCN2022109262-appb-000036
为向上取整,X表示为所有TRP或TRP组所配置SD与FD基向量对的总数量,Y i表示为每个TRP或每个TRP组配置的SD与FD基向量对的数量,i表示每个TRP在多个TRP中的序号,或者表示每个TRP组在多个TRP组中的序号,由此,可以在保证索引值准确性的同时,提升索引值的获取效率。
其中,第五指示值,是指根据SD与FD基向量对的总数量和为每个TRP或TRP组配置的SD与FD基向量对的数量所得到的数值。
本公开实施例中还提供了一种指示方法,在该指示方法中,如果基向量为特征向量,还可以基于显示反馈的方法上报特征向量的指示信息,该方法还包括:确定特征向量中每个系数对应的幅度和/或相位,根据幅度和/或相位,发送特征向量的指示信息,其中,特征向量的指示信息用于指示以下任一项:与每个系数对应幅度的指示信息;与每个系数对应相位的指示信息,可以基于特征向量中每个系数对应的幅度和/或相位,有效提升指示信息对于特征向量的指示效果。
其中,特征向量,是指在某个线性变换下方向不变(也可以说具有保角性),其大小不变或被乘以某个缩放因子的非零向量。
本公开实施例中还提供了一种指示方法,在该指示方法中,如果基向量为特征向量,还可以基于隐式反馈的方法上报特征向量的指示信息,该方法还包括:确定特征向量中的多个正交基向量,以及与每个正交基向量对应的权重值,根据正交基向量和权重值,发送特征向量的指示信息,由此,可以基于权重值准确地对各个正交基向量在索引值生成过程中的重要程度进行量化处理,从而有效提升特征向量的指示效果。
其中,正交基向量,是指存在正交关系的多个基向量。
其中,权重值,可以被用于量化描述相应正交基向量在生成特征向量所属基向量的索引值过程中的重要程度。
本公开实施例中还提供了一种指示方法,还包括:基于第一周期,向网络设备发送指示信息;基于第二周期,向网络设备指示与TRP对应的组合系数,其中,第一周期大于第二周期,可以保证网络设备及时获取TRP对应的组合系数,有效提升网络设备侧在指示过程中的工作效率。
其中,第一周期,是指预先针对指示信息所配置的发送周期。而第二周期,是指预先针对TRP对应的组合系数所配置的发送周期。
本公开实施例中还提供了一种指示方法,数据传输层的数量是多个;其中,指示信息满足如下中的至少一项:与每层数据传输层对应的CSI-RS端口的指示信息相同;与每层数据传输层对应的SD基向量的指示信息相同;与每层数据传输层对应的FD基向量的指示信息不同;与每层数据传输层对应的SD与FD基向量对的指示信息相同或不同,其中,基向量是DFT基向量;与每层数据传输层对应的SD与FD基向量对的指示信息相同,其中,基向量是特征向量,由此,可以在数据传输层的数量是多个时,保证指示信息与应用场景之间的适配性。
针对终端设备的执行步骤可以举例说明如下:
1、终端根据网络设备侧配置的码本参数信息,终端设备至少上报端口选择、SD基向量、FD基向量或SD与FD基向量对的指示信息的一种或多种,码本参数信息至少包括SD基向量、FD基向量或SD与FD基向量对的个数。
2、对于FD基向量或SD与FD基向量对的指示信息,终端通过以下方法上报指示信息:
2-1、FD基向量的指示上报,FD基向量为DFT基向量。
Alt1(用于上述码本结构Alt1):上报一个参考TRP/TRP组对应的FD基向量指示信息,指示信息指示终端设备从候选的N 3-1个FD基向量中选择M i-1个FD基向量;再上报其它TRP/TRP组对应的FD基向量指示信息,指示信息指示终端设备为从N 3中选择M i个FD基向量。
Alt2(用于上述码本结构Alt2):上报一个所有TRP/TRP组对应的FD基向量指示信息。指示信息指示终端设备从N 3-1个FD基向量中选择M-1个FD基向量。可选地,终端设备上报指示一个参考FD基向量和每个TRP/TRP组对应的相对该参考FD基向量的相对FD基向量。参考基向量是通过
Figure PCTCN2022109262-appb-000037
bits指示信息指示从N个FD基向量选择1个FD基向量。例如,对于某个TRP选择的基向量索引为2,3,5,8。终端上报
Figure PCTCN2022109262-appb-000038
指示参考FD基向量的索引为2,则该TRP对应的相对索引为0,1,3,6,即所有索引值经过偏移减少了2。
(1)参考的TRP/TRP组为终端接收L1-RSRP最大所对应的TRP/TRP组。
(2)参考的TRP/TRP组为包含最强系数或最大参考幅度对应的TRP/TRP组,最强系数是指组合系数中幅度最大。最大参考幅度是指多个TRP/TRP组对应的多个参考幅度最大值。
(3)参考的TRP/TRP组为所有FD基向量中索引最小或最大的基向量所对应的TRP/TRP组。
(4)参考的TRP/TRP组为多个CSI-RS资源中资源ID最小或最大,或者一个CSI-RS资源对应多个端口组中索引最小或最大对应的TRP/TRP组,或者参考的TRP/TRP组由终端显式地通过一个大小为N Trp的bitmap或者
Figure PCTCN2022109262-appb-000039
上报至gNB。N Trp表示用于协作TRP/TRP组的个数。
上述N的值可以为PMI子带的个数或者为一个窗的大小,并且N的值由网络侧配置的参数确定。当候选的FD基向量在一个窗内时,UE还需要上报每个TRP/TRP组对应的窗的起始位置,UE通过
Figure PCTCN2022109262-appb-000040
指示一个TRP/TRP组对应窗的起始位置。M i表示第i个TRP/TRP组对应的FD基向量,M表示所有TRP/TRP组对应的基向量。
2-2、SD和FD基向量联合上报指示(用于码本结构Alt1B),基向量为DFT基向量。
Alt1:对于每个TRP/TRP组,分别指示SD和FD基向量,然后再通过一个bitmap或组合数方式指示终端所选各TRP/TRP组的SD和FD基向量对。
Alt2:对于每个TRP/TRP组,上报一个SD和FD基向量对的指示信息,指示信息指示终端从候选的X个SD和FD基向量对中选择Y i个SD和FD基向量对。
其中,上述FD基向量可以从候选的N 3个基向量选择,也可以从一个网络侧配置的窗内选择。当采用后者时,窗的起始点可以预定义,也可以由终端设备上报指示。
2-3、SD、FD基向量或SD与FD基向量对的联合上报指示(用于码本结构Alt1B),基向量为特征向量。
Alt1:显示反馈,向量中的每个系数的幅度和相位分别独立量化上报。
Alt2:隐式反馈,每个特征向量由S个正交基向量和S个各基向量的权重值通过线性组合表示,S 为正整数。正交基向量可以为DFT、DCT、多项式等不同的基向量类型。
3、步骤2中的基向量为特征向量时,基向量的反馈周期通过第一周期T1或者非周期触发的方式上报,相应的组合系数
Figure PCTCN2022109262-appb-000041
通过第二周期T2上报,其中T1>T2。
4、当基向量为DFT基向量时,步骤1和2中的指示信息可以通过一个bitmap或者组合数指示终端所选的端口、SD基向量、FD基向量、SD与FD基向量对。
图10是本公开实施例提供的又一种指示方法的流程示意图,本实施例中的指示方法可以应用在网络设备中,如图10所示,该方法可以包括但不限于如下步骤:
S110:向终端设备指示码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量。
可以理解的是,本公开实施例中网络设备通过向终端设备指示码本参数信息,所得码本参数信息可以被用于指示终端设备中配置码本参数的过程。
S210:接收终端设备发送的指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关。
本实施例中,通过向终端设备指示码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量,接收终端设备发送的指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关,可以基于码本参数信息保障终端设备所发送指示信息与指示场景的适配性,能够有效提升指示信息对应网络设备的指示效果,减少码本参数对应的指示开销。
本公开实施例中还提供了一种指示方法,码本参数包括以下至少一项:频域FD基向量、空域SD基向量、SD与FD基向量对、信道状态信息参考信号CSI-RS端口,以保障指示过程的可靠性。
本公开实施例中提供的指示方法,码本参数的数量可以包括以下至少一项:频域FD基向量的数量、空域SD基向量的数量、SD与FD基向量对的数量,以及信道状态信息参考信号CSI-RS端口的数量,对此不做限制。
其中,空域SD基向量的数量,可以是为每个TRP或TRP组所配置SD基向量的数量,则在指示与每个TRP或TRP组对应的SD基向量的索引值时,可以采用如下方式:
1、码本结构为
Figure PCTCN2022109262-appb-000042
其中W 1由2L个SD基向量组成,第一极化方向和第二极化方向分别包含L个相同的SD基向量,W f由M个FD基向量组成,则对应SD基向量和FD基向量的选择和指示方式可以如下所示:
1-1、SD基向量的选择和指示方式:
选择方式:两个极化方向选择的相同的SD基向量,对应数据传输层的秩rank=v,v个数据传输层采用相同的SD基向量。
指示方式:基于
Figure PCTCN2022109262-appb-000043
bits指示UE选择的L个SD基向量,O 1和O 2分别表示水平和垂直方向SD基向量的过采样因子,N 1N 2分别表示单个极化方向上水平和垂直方向的天线端口数。
Figure PCTCN2022109262-appb-000044
表示从N 1N 2中选择L个SD基向量的组合数计算,
Figure PCTCN2022109262-appb-000045
表示对x的向上取整。
1-2、FD基向量的选择和指示方式,还可以是如下所示,对此不做限制。
选择方式:所有SD基向量对应相同的FD基向量,每层数据传输层选择相同或不同的FD基向 量。
指示方式:对于任一数据传输层,当N 3≤19时,基于
Figure PCTCN2022109262-appb-000046
指示UE选择的M个FD基向量。N 3为PMI子带的个数。当N 3>19时UE从大小为2M的窗内通过
Figure PCTCN2022109262-appb-000047
指示选择的M个FD基向量。
其中,信道状态信息参考信号CSI-RS端口的数量,可以是为每个TRP或TRP组所配置SD基向量的数量,则在指示与每个TRP或TRP组对应的SD基向量的索引值时,可以采用如下方式:
2、码本结构为
Figure PCTCN2022109262-appb-000048
其中,W 1由2L个单位基向量组成,第一极化方向和第二极化方向分别包含L个相同的单位基向量。
2-1、CSI-RS端口选择和指示方式为:
选择方式:两个极化方向上选择的相同的连续L个CSI-RS端口,v个数据传输层选择相同的端口。
指示方式:基于
Figure PCTCN2022109262-appb-000049
指示,P CSI-RS表示CSI-RS端口数,d∈{1,2,3,4}可配置的参数。
2-2、FD基向量的指示方式:指示方式同上述1-2中描述的FD基向量的选择和指示方式。
3、码本结构为
Figure PCTCN2022109262-appb-000050
其中W 1由2L个单位基向量组成,第一极化方向和第二极化方向分别包含L个相同的单位基向量。
3-1、CSI-RS端口选择和指示方式:
选择方式:两个极化方向上选择相同的L个CSI-RS端口,v个数据传输层选择相同的端口。
指示方式:基于
Figure PCTCN2022109262-appb-000051
K 1=αP CSI-RS,α为可配置的参数。
3-2、FD基向量的指示方式,还可以是如下所示,对此不做限制。
选择方式:所有选择的K 1对应相同的FD基向量,v个数据传输层选择相同的FD基向量。
指示方式:基于
Figure PCTCN2022109262-appb-000052
指示或者不上报,N∈{2,4}为可配置的参数。
本公开实施例中还提供了一种指示方法,指示信息包括以下至少一项:FD基向量的指示信息、SD基向量的指示信息、SD与FD基向量对的指示信息、与数据传输层对应的端口的指示信息、多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内、多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内,由此,可以有效提升指示信息所指示内容的灵活性和指示效果。
本公开实施例中还提供了一种指示方法,FD基向量的指示信息,用于指示以下至少一项:指示与参考TRP对应的FD基向量的索引值、指示与参考TRP组对应的FD基向量的索引值、指示与每个其他TRP对应的FD基向量的索引值、指示与每个其他TRP组对应的FD基向量的索引值、指示与多个TRP中每个TRP对应的FD基向量的索引值、指示与多个TRP组中每个TRP组对应的FD基向量的索引值、指示与多个TRP中每个TRP对应的相对FD基向量的索引值、指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值、指示参考FD基向量的索引值,其中,参考TRP和其他TRP属于多个TRP,参考TRP组和其他TRP组属于多个TRP组,多个TRP或多个TRP组为终端设备提供数据 服务,由此,可以有效提升FD基向量的指示信息对于FD基向量相关信息的指示效果。
本公开实施例中还提供了一种指示方法,码本参数信息还包括:参考数量,码本参数的数量是以下任一项:为每个TRP或每个TRP组配置的FD基向量的数量;为所有TRP或TRP组所配置的FD基向量的总数量;为每个TRP或每个TRP组配置的SD与FD基向量对的数量;为所有TRP或TRP组所配置SD与FD基向量对的总数量,可以丰富码本参数信息的指示内容,有效提升指示过程的可靠性。
本公开实施例中还提供了一种指示方法,参考数量是以下任一项:预编码矩阵指示PMI的数量、滑动窗口所包含FD基向量的数量,可以保障参考数量在指示过程中的可靠性。
本公开实施例中还提供了一种指示方法,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:指示与每个TRP对应的SD基向量的索引值、指示与每个TRP对应的FD基向量的索引值、指示与每个TRP对应的SD与FD基向量对的索引值、指示与每个TRP组对应的SD基向量的索引值、指示与每个TRP组对应的FD基向量的索引值、指示与每个TRP组对应的SD与FD基向量对的索引值,由此,可以有效提升SD基向量、FD基向量以及SD与FD基向量对的联合指示信息在个性化场景中的指示效果。
针对网络设备的执行步骤可以举例说明如下:
1、网络设备为终端设备配置码本参数信息,码本参数信息指示包括终端所选的端口个数、SD基向量个数、FD基向量个数、SD与FD基向量对个数的一种或多种;网络设备配置的不同TRP对应的这些参数信息可能相同或不同。
2、网络利用接收的端口选择、SD基向量、FD基向量或SD与FD基向量对的指示信息和/或基向量信息根据相应的码本结构计算出用于数据传输的预编码。
需要说明的是上述步骤适用于单个数据传输层对应的指示上报方法,而当数据传输层的数量是多个时:
端口选择:各层对应的端口指示信息相同;
SD基向量:各层对应的SD基向量指示信息相同;
FD基向量:各层对应的FD基向量指示信息不同;
当基向量为DFT基向量,SD与FD基向量对:各层对应的SD与FD基向量相同或不同;
当基向量为特征向量,SD与FD基向量对:各层对应的SD与FD基向量相同。
针对上述说明,可以构建实施例如下所示:
实施例1:FD基向量的指示上报,FD基向量为DFT基向量。
假设N=2个TRP通过CJT为UE提供服务,网络设备gNB为UE配置每个TRP对应的SD和FD基向量个数L i和M i分别为4和4,PMI子带的个数N 3=13。SD和FD基向量均为DFT基向量,并由UE根据不同TRP到UE的信道选择出每个TRP对应的SD和FD基向量。对于FD基向量,若UE采用传统方法分别上报每个TRP对应的FD基向量,则需要
Figure PCTCN2022109262-appb-000053
其中
Figure PCTCN2022109262-appb-000054
表示从N 3中选择M i个FD基向量,N表示TRP/TRP组的个数。
对于一种码本结构,终端可以与网络设备预先约定一个默认的FD基向量,假设i=1作为参考 TRP,则终端可以通过上报
Figure PCTCN2022109262-appb-000055
指示第i=1个TRP所对应的剩余三个FD基向量,而第i=2个TRP仍通过
Figure PCTCN2022109262-appb-000056
指示该TRP对应的四个FD基向量。该指示上报方法与传统方法相比可节省2bits开销。
对于另一种码本结构,假设gNB为UE配置所有TRP选择M=5个FD基向量,UE通过bits指示UE从N=12个FD基向量中选择个基向量,其中元素全为1的DFT基向量总被选中。
实施例2:SD与FD基向量对的联合上报指示,基向量为特征向量。
令FD基向量为特征向量且第k个特征向量为v k,S个正交基向量为DFT基向量,第s个DFT基向量定义为v s,S个基向量构成的矩阵为B,则S个加权系数c=B Hv k。终端把S个DFT基向量指示信息和S个加权系数的指示信息上报给gNB,gNB利用所得指示信息可通过v k=Bc计算出第k个特征向量。类似地,可以基于上述方式将SD基向量和SD与FD基向量为特征向量的信息通过正交基向量和各正交基向量的权重值上报至网络设备。
图11为本公开实施例提供的一种通信装置的结构示意图。图11所示的通信装置110可包括收发模块1101和处理模块1102。收发模块1101可包括发送模块和/或接收模块,发送模块用于实现发送功能,接收模块用于实现接收功能,收发模块1101可以实现发送功能和/或接收功能。
通信装置110可以是终端设备(如前述方法实施例中的终端设备),也可以是终端设备中的装置,还可以是能够与终端设备匹配使用的装置。或者,通信装置110可以是网络设备(如前述方法实施例中的网络设备),也可以是网络设备中的装置,还可以是能够与网络设备匹配使用的装置。
通信装置110,在终端设备侧,该装置包括:
收发模块1101,用于:
获取网络设备指示的码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;
向网络设备发送指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关。
可选的,码本参数包括以下至少一项:
频域FD基向量;
空域SD基向量;
SD与FD基向量对;
信道状态信息参考信号CSI-RS端口。
可选的,指示信息包括以下至少一项:
FD基向量的指示信息;
SD基向量的指示信息;
SD与FD基向量对的指示信息;
CSI-RS端口的指示信息;
多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;
多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内。
可选的,FD基向量的指示信息,用于指示以下至少一项:
指示与参考TRP对应的FD基向量的索引值;
指示与参考TRP组对应的FD基向量的索引值;
指示与每个其他TRP对应的FD基向量的索引值;
指示与每个其他TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
指示参考FD基向量的索引值;
其中,参考TRP和其他TRP属于多个TRP,参考TRP组和其他TRP组属于多个TRP组,多个TRP或多个TRP组为终端设备提供数据服务。
可选的,该装置,还包括:
处理模块1102,用于将与每个TRP对应的FD基向量的索引值与参考FD基向量的索引值作差,得到每个TRP对应的相对FD基向量的索引值;将与每个TRP组对应的FD基向量的索引值与参考FD基向量的索引值作差,得到每个TRP组对应的相对FD基向量的索引值。
可选的,码本参数信息还包括:参考数量;码本参数的数量包括:为每个TRP或每个TRP组配置的FD基向量的数量;收发模块1101,还用于:
根据参考数量和FD基向量的数量,向网络设备发送FD基向量的指示信息;其中,FD基向量的指示信息用于指示以下至少一项:
指示与参考TRP对应的FD基向量的索引值;
指示与参考TRP组对应的FD基向量的索引值;
指示与每个其他TRP对应的FD基向量的索引值;
指示与每个其他TRP组对应的FD基向量的索引值。
可选的,码本参数信息还包括:参考数量;码本参数的数量包括:为参考TRP或参考TRP组配置的FD基向量的数量;处理模块1102,还用于:
基于第一指示方法处理参考数量和为参考TRP或参考TRP组配置的FD基向量的数量,得到第一指示值,其中,第一指示值用于指示与参考TRP或参考TRP组对应的FD基向量的索引值;
第一指示方法包括:
Figure PCTCN2022109262-appb-000057
Figure PCTCN2022109262-appb-000058
表示从N 3-1个FD基向量中选择M i-1个FD基向量,
Figure PCTCN2022109262-appb-000059
为向上取整,N 3表示参考数量,M i表示为参考TRP或参考TRP组配置的FD基向量的数量,i表示参考TRP在多个TRP中的序号,或者表示参考TRP组在多个TRP组中的序号。
可选的,码本参数信息还包括:参考数量;码本参数的数量包括:为每个其他TRP或每个其他TRP组配置的FD基向量的数量;处理模块1102,还用于:
基于第二指示方法处理参考数量和为每个其他TRP或每个其他TRP组配置的FD基向量的数量,得到第二指示值,第二指示值用于指示与每个其他TRP或每个其他TRP组对应的FD基向量的索引 值;
第二指示方法包括:
Figure PCTCN2022109262-appb-000060
Figure PCTCN2022109262-appb-000061
表示从N 3个FD基向量中选择M i个FD基向量,
Figure PCTCN2022109262-appb-000062
为向上取整,N 3表示参考数量,M i表示为每个其他TRP或每个其他TRP组配置的FD基向量的数量,i表示每个其他TRP在多个TRP中的序号,或者表示每个其他TRP组在多个TRP组中的序号。
可选的,码本参数信息还包括:参考数量;码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;
其中,收发模块1101,还用于:
根据参考数量和/或FD基向量的总数量,发送FD基向量的指示信息;
其中,FD基向量的指示信息用于指示以下至少一项:
指示与多个TRP中每个TRP对应的FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
指示参考FD基向量的索引值。
可选的,码本参数信息还包括:参考数量;码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;处理模块1102,还用于:
基于第三指示方法处理参考数量和FD基向量的总数量,得到第三指示值,第三指示值用于指示与每个TRP或每个TRP组对应的FD基向量的索引值;
第三指示方法包括:
Figure PCTCN2022109262-appb-000063
其中,
Figure PCTCN2022109262-appb-000064
表示从N 3-1个FD基向量中选择M-1个FD基向量,
Figure PCTCN2022109262-appb-000065
为向上取整,N 3表示参考数量,M表示为所有TRP或TRP组所配置的FD基向量的总数量。
可选的,码本参数信息还包括:参考数量;处理模块1102,还用于:
基于第四指示方法处理参考数量,得到第四指示值,第四指示值用于指示参考FD基向量的索引值;
第四指示方法包括:
Figure PCTCN2022109262-appb-000066
其中,
Figure PCTCN2022109262-appb-000067
表示从N 3个FD基向量中选择1个FD基向量,
Figure PCTCN2022109262-appb-000068
为向上取整,N 3表示参考数量。
可选的,参考数量是以下任一项:
预编码矩阵指示PMI的数量;
滑动窗口所包含FD基向量的数量。
可选的,参考TRP是以下任一项:
多个第一层1参考信号接收功率L1-RSRP中值最大第一L1-RSRP对应的TRP,每个第一L1-RSRP对应一个TRP;
多个第一组合系数中幅度最大的第一组合系数对应的TRP;
多个第一参考幅度中最大的第一参考幅度对应的TRP;
多个第一描述值中最小或最大第一描述值对应的TRP,每个第一描述值对应一个TRP。
可选的,第一描述值是以下任一项:
与TRP对应的FD基向量的索引值;
与TRP对应的CSI-RS资源中的资源标识号ID;
与TRP对应的端口组索引值。
可选的,参考TRP组是以下任一项:
多个第二L1-RSRP中值最大第二L1-RSRP对应的TRP组,每个第二L1-RSRP对应一个TRP组;
多个第二组合系数中幅度最大的第二组合系数对应的TRP组;
多个第二参考幅度中最大的第二参考幅度对应的TRP组;
多个第二描述值中最小或最大第二描述值对应的TRP组,每个第二描述值对应一个TRP组。
可选的,第二描述值是以下任一项:
与TRP组对应的FD基向量的索引值;
与TRP组对应的CSI-RS资源中的资源标识号ID;
与TRP组对应的端口组索引值。
可选的,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:
指示与每个TRP对应的SD基向量的索引值;
指示与每个TRP对应的FD基向量的索引值;
指示与每个TRP对应的SD与FD基向量对的索引值;
指示与每个TRP组对应的SD基向量的索引值;
指示与每个TRP组对应的FD基向量的索引值;
指示与每个TRP组对应的SD与FD基向量对的索引值。
可选的,基向量为离散傅里叶变换DFT基向量,收发模块1101,还用于:
根据码本参数的数量,发送DFT基向量的指示信息,其中,DFT基向量的指示信息用于指示以下任一项:
与每个TRP对应的SD基向量的索引值;
与每个TRP对应的FD基向量的索引值;
与每个TRP组对应的SD基向量的索引值;
与每个TRP组对应的FD基向量的索引值。
可选的,收发模块1101,还用于:
根据码本参数的数量,发送SD与FD基向量对的指示信息;
其中,SD与FD基向量对的指示信息用于指示以下至少一项:
与每个TRP对应的SD与FD基向量对的索引值;
与每个TRP组对应的SD与FD基向量对的索引值。
可选的,码本参数的数量包括:为每个TRP或每个TRP组配置的SD与FD基向量对的数量,以及为所有TRP或TRP组所配置SD与FD基向量对的总数量;
处理模块1102,还用于:
处理SD与FD基向量对的总数量和SD与FD基向量对的数量,得到第五指示值,第五指示值用于指示与每个TRP或每个TRP组对应的SD与FD基向量对的索引值;
第五指示方法包括:
Figure PCTCN2022109262-appb-000069
其中,
Figure PCTCN2022109262-appb-000070
表示从X个SD与FD基向量对中选择Y i个SD与FD基向量对,
Figure PCTCN2022109262-appb-000071
为向上取整,X表示为 所有TRP或TRP组所配置SD与FD基向量对的总数量,Y i表示为每个TRP或每个TRP组配置的SD与FD基向量对的数量,i表示每个TRP在多个TRP中的序号,或者表示每个TRP组在多个TRP组中的序号。
可选的,基向量为特征向量,处理模块1102,还用于:
确定特征向量中每个系数对应的幅度和/或相位。
可选的,收发模块1101,还用于:
根据幅度和/或相位,发送特征向量的指示信息;
其中,特征向量的指示信息用于指示以下任一项:
与每个系数对应幅度的指示信息;
与每个系数对应相位的指示信息。
可选的,基向量为特征向量,处理模块1102,还用于:
确定特征向量中的多个正交基向量,以及与每个正交基向量对应的权重值。
可选的,收发模块1101,还用于:
根据正交基向量和权重值,发送特征向量的指示信息。
可选的,收发模块1101,还用于:
基于第一周期,向网络设备发送指示信息;
基于第二周期,向网络设备指示与TRP对应的组合系数,其中,第一周期大于第二周期。
可选的,数据传输层的数量是多个;其中,指示信息满足如下中的至少一项:
与每层数据传输层对应的CSI-RS端口的指示信息相同;
与每层数据传输层对应的SD基向量的指示信息相同;
与每层数据传输层对应的FD基向量的指示信息不同;
与每层数据传输层对应的SD与FD基向量对的指示信息相同或不同,其中,基向量是DFT基向量;
与每层数据传输层对应的SD与FD基向量对的指示信息相同,其中,基向量是特征向量。
通过实施本公开的方法,终端设备可以获取网络设备指示的码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量,向网络设备发送指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关,能够在减少码本参数对应指示开销的同时,有效提升对于码本参数的指示效果。
通信装置110,在网络设备侧,该装置包括:
收发模块1101,用于向终端设备指示码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;接收终端设备发送的指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关。
可选的,码本参数包括以下至少一项:
频域FD基向量;
空域SD基向量;
SD与FD基向量对;
信道状态信息参考信号CSI-RS端口。
可选的,指示信息包括以下至少一项:
FD基向量的指示信息;
SD基向量的指示信息;
SD与FD基向量对的指示信息;
与数据传输层对应的端口的指示信息;
多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;
多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内。
可选的,FD基向量的指示信息,用于指示以下至少一项:
指示与参考TRP对应的FD基向量的索引值;
指示与参考TRP组对应的FD基向量的索引值;
指示与每个其他TRP对应的FD基向量的索引值;
指示与每个其他TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
指示参考FD基向量的索引值;
其中,参考TRP和其他TRP属于多个TRP,参考TRP组和其他TRP组属于多个TRP组,多个TRP或多个TRP组为终端设备提供数据服务。
可选的,码本参数信息还包括:参考数量,码本参数的数量是以下任一项:
为每个TRP或每个TRP组配置的FD基向量的数量;
为所有TRP或TRP组所配置的FD基向量的总数量;
为每个TRP或每个TRP组配置的SD与FD基向量对的数量;
为所有TRP或TRP组所配置SD与FD基向量对的总数量。
可选的,参考数量是以下任一项:
预编码矩阵指示PMI的数量;
滑动窗口所包含FD基向量的数量。
可选的,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:
指示与每个TRP对应的SD基向量的索引值;
指示与每个TRP对应的FD基向量的索引值;
指示与每个TRP对应的SD与FD基向量对的索引值;
指示与每个TRP组对应的SD基向量的索引值;
指示与每个TRP组对应的FD基向量的索引值;
指示与每个TRP组对应的SD与FD基向量对的索引值。
通过实施本公开的方法,网络设备可以向终端设备指示码本参数信息,其中,码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量,接收终端设备发送的指示信息,其中,指示信息用于指示终端设备为TRP或TRP组所选择的码本参数的索引值,索引值与码本参数的数量相关,可以基于码本参数信息保障终端设备所发送指示信息与指示场景的适配性,能够有效提升指示信息对应网络设备的指示效果,减少码本参数对应的指示开销。
图12是本公开实施例提供的另一种通信装置的结构示意图。通信装置120可以是网络设备(如前述方法实施例中的网络设备),也可以是终端设备(如前述方法实施例中的终端设备),也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等,还可以是支持终端设备实现上述方法的芯片、 芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
通信装置120可以包括一个或多个处理器1201。处理器1201可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端设备、终端设备芯片,DU或CU等)进行控制,执行计算机程序,处理计算机程序的数据。
可选的,通信装置120中还可以包括一个或多个存储器1202,其上可以存有计算机程序1204,处理器1201中可以存有计算机程序1203,处理器1201执行所述计算机程序1204和/或计算机程序1203,以使得通信装置120执行上述方法实施例中描述的方法。可选的,所述存储器1202中还可以存储有数据。通信装置120和存储器1202可以单独设置,也可以集成在一起。
可选的,通信装置120还可以包括收发器1205、天线1206。收发器1205可以称为收发单元、收发机、或收发电路等,用于实现收发功能。收发器1205可以包括接收器和发送器,接收器可以称为接收机或接收电路等,用于实现接收功能;发送器可以称为发送机或发送电路等,用于实现发送功能。
可选的,通信装置120中还可以包括一个或多个接口电路1207。接口电路1207用于接收代码指令并传输至处理器1201。处理器1201运行所述代码指令以使通信装置120执行上述方法实施例中描述的方法。
在一种实现方式中,处理器1201中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路,或者是接口,或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的,也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写,或者,上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中,处理器1201可以存有计算机程序1203,计算机程序1203在处理器1201上运行,可使得通信装置120执行上述方法实施例中描述的方法。计算机程序1203可能固化在处理器1201中,该种情况下,处理器1201可能由硬件实现。
在一种实现方式中,通信装置120可以包括电路,所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integratedcircuit,IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit,ASIC)、印刷电路板(printed circuit board,PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造,例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor,NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(bipolar junction transistor,BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备如前述方法实施例中的网络设备)或者终端设备(如前述方法实施例中的终端设备),但本公开中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图12的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是:
(1)独立的集成电路IC,或芯片,或,芯片系统或子系统;
(2)具有一个或多个IC的集合,可选的,该IC集合也可以包括用于存储数据,计算机程序的存储部件;
(3)ASIC,例如调制解调器(Modem);
(4)可嵌入在其他设备内的模块;
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等;
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况,可参见图13所示的芯片的结构示意图。图13所示的芯片包括处理器1301和接口1302。其中,处理器1301的数量可以是一个或多个,接口1302的数量可以是多个。
对于芯片用于实现本申请实施例中终端设备的功能的情况:
处理器1301,用于实现图3中的S103和S203,或者用于实现图5中的S105,或者,用于实现图6中的S106等。
接口1302,用于实现图2中的S102和S202,或者用于实现图4中的S104,或者用于实现图9中的S109等。
对于芯片用于实现本申请实施例中网络设备的功能的情况:
接口1302,用于实现图10中的S110和S210。
可选的,芯片还包括存储器1303,存储器1303用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件,或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用,可以使用各种方法实现所述的功能,但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种通信系统,该系统包括前述图11实施例中作为网络设备(如前述方法实施例中的网络设备)的通信装置和作为终端设备(如前述方法实施例中的终端设备)的通信装置,或者,该系统包括前述图12实施例中作为网络设备(如前述方法实施例中的网络设备)的通信装置和作为终端设备(如前述方法实施例中的终端设备)的通信装置。
本公开还提供一种可读存储介质,其上存储有指令,该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品,该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时,全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。 所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。
本领域普通技术人员可以理解:本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分,并不用来限制本公开实施例的范围,也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个,多个可以是两个、三个、四个或者更多个,本公开不做限制。在本公开实施例中,对于一种技术特征,通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征,该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置,也可以是预定义的。各表中的信息的取值仅仅是举例,可以配置为其他值,本公开并不限定。在配置信息与各参数的对应关系时,并不一定要求必须配置各表中示意出的所有对应关系。例如,本公开中的表格中,某些行示出的对应关系也可以不配置。又例如,可以基于上述表格做适当的变形调整,例如,拆分,合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称,其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时,也可以采用其他的数据结构,例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以所述权利要求的保护范围为准。

Claims (35)

  1. 一种指示方法,其特征在于,由终端设备执行,所述方法包括:
    获取网络设备指示的码本参数信息,其中,所述码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;
    向所述网络设备发送指示信息,其中,所述指示信息用于指示所述终端设备为所述TRP或TRP组所选择的码本参数的索引值,所述索引值与所述码本参数的数量相关。
  2. 如权利要求1所述的方法,其特征在于,所述码本参数包括以下至少一项:
    频域FD基向量;
    空域SD基向量;
    SD与FD基向量对;
    信道状态信息参考信号CSI-RS端口。
  3. 如权利要求1-2任一项所述的方法,其特征在于,所述指示信息包括以下至少一项:
    FD基向量的指示信息;
    SD基向量的指示信息;
    SD与FD基向量对的指示信息;
    CSI-RS端口的指示信息;
    多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;
    多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内。
  4. 如权利要求3所述的方法,其特征在于,所述FD基向量的指示信息,用于指示以下至少一项:
    指示与参考TRP对应的FD基向量的索引值;
    指示与参考TRP组对应的FD基向量的索引值;
    指示与每个其他TRP对应的FD基向量的索引值;
    指示与每个其他TRP组对应的FD基向量的索引值;
    指示与多个TRP中每个TRP对应的FD基向量的索引值;
    指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
    指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
    指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
    指示参考FD基向量的索引值;
    其中,所述参考TRP和所述其他TRP属于所述多个TRP,所述参考TRP组和所述其他TRP组属于所述多个TRP组,所述多个TRP或所述多个TRP组为所述终端设备提供数据服务。
  5. 如权利要求4所述的方法,其特征在于,所述方法还包括:
    将与所述每个TRP对应的FD基向量的索引值与所述参考FD基向量的索引值作差,得到所述每个TRP对应的相对FD基向量的索引值;
    将与所述每个TRP组对应的FD基向量的索引值与所述参考FD基向量的索引值作差,得到所述每个TRP组对应的相对FD基向量的索引值。
  6. 如权利要求4所述的方法,其特征在于,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为每个TRP或每个TRP组配置的FD基向量的数量;
    所述向所述网络设备发送指示信息,包括:
    根据所述参考数量和所述FD基向量的数量,向所述网络设备发送所述FD基向量的指示信息;其中,所述FD基向量的指示信息用于指示以下至少一项:
    指示与参考TRP对应的FD基向量的索引值;
    指示与参考TRP组对应的FD基向量的索引值;
    指示与每个其他TRP对应的FD基向量的索引值;
    指示与每个其他TRP组对应的FD基向量的索引值。
  7. 如权利要求4所述的方法,其特征在于,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为参考TRP或参考TRP组配置的FD基向量的数量;
    则所述方法还包括:
    基于第一指示方法处理所述参考数量和所述为参考TRP或参考TRP组配置的FD基向量的数量,得到第一指示值,其中,所述第一指示值用于指示与所述参考TRP或所述参考TRP组对应的FD基向量的索引值;
    所述第一指示方法包括:
    Figure PCTCN2022109262-appb-100001
    Figure PCTCN2022109262-appb-100002
    表示从N 3-1个FD基向量中选择M i-1个FD基向量,
    Figure PCTCN2022109262-appb-100003
    为向上取整,N 3表示所述参考数量,M i表示为参考TRP或参考TRP组配置的FD基向量的数量,i表示参考TRP在多个TRP中的序号,或者表示参考TRP组在多个TRP组中的序号。
  8. 如权利要求4所述的方法,其特征在于,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为每个其他TRP或每个其他TRP组配置的FD基向量的数量;
    则所述方法还包括:
    基于第二指示方法处理所述参考数量和所述为每个其他TRP或每个其他TRP组配置的FD基向量的数量,得到第二指示值,所述第二指示值用于指示与所述每个其他TRP或每个其他TRP组对应的FD基向量的索引值;
    所述第二指示方法包括:
    Figure PCTCN2022109262-appb-100004
    Figure PCTCN2022109262-appb-100005
    表示从N 3个FD基向量中选择M i个FD基向量,
    Figure PCTCN2022109262-appb-100006
    为向上取整,N 3表示所述参考数量,M i表示为每个其他TRP或每个其他TRP组配置的FD基向量的数量,i表示每个其他TRP在多个TRP中的序号,或者表示每个其他TRP组在多个TRP组中的序号。
  9. 如权利要求4所述的方法,其特征在于,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;
    其中,所述向所述网络设备发送指示信息,包括:
    根据所述参考数量和/或所述FD基向量的总数量,发送所述FD基向量的指示信息;
    其中,所述FD基向量的指示信息用于指示以下至少一项:
    指示与多个TRP中每个TRP对应的FD基向量的索引值;
    指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
    指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
    指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
    指示参考FD基向量的索引值。
  10. 如权利要求4所述的方法,其特征在于,所述码本参数信息还包括:参考数量;所述码本参数的数量包括:为所有TRP或TRP组所配置的FD基向量的总数量;
    则所述方法还包括:
    基于第三指示方法处理所述参考数量和所述FD基向量的总数量,得到第三指示值,所述第三指示值用于指示与每个TRP或每个TRP组对应的FD基向量的索引值;
    所述第三指示方法包括:
    Figure PCTCN2022109262-appb-100007
    其中,
    Figure PCTCN2022109262-appb-100008
    表示从N 3-1个FD基向量中选择M-1个FD基向量,
    Figure PCTCN2022109262-appb-100009
    为向上取整,N 3表示所述参考数量,M表示所述为所有TRP或TRP组所配置的FD基向量的总数量。
  11. 如权利要求4所述的方法,其特征在于,所述码本参数信息还包括:参考数量;
    则所述方法还包括:
    基于第四指示方法处理所述参考数量,得到第四指示值,所述第四指示值用于指示参考FD基向量的索引值;
    所述第四指示方法包括:
    Figure PCTCN2022109262-appb-100010
    其中,
    Figure PCTCN2022109262-appb-100011
    表示从N 3个FD基向量中选择1个FD基向量,
    Figure PCTCN2022109262-appb-100012
    为向上取整,N 3表示所述参考数量。
  12. 如权利要求6-11任一项所述的方法,其特征在于,所述参考数量是以下任一项:
    预编码矩阵指示PMI的数量;
    滑动窗口所包含FD基向量的数量。
  13. 如权利要求4所述的方法,其特征在于,所述参考TRP是以下任一项:
    多个第一层1参考信号接收功率L1-RSRP中值最大第一L1-RSRP对应的TRP,每个所述第一L1-RSRP对应一个所述TRP;
    多个第一组合系数中幅度最大的第一组合系数对应的TRP;
    多个第一参考幅度中最大的第一参考幅度对应的TRP;
    多个第一描述值中最小或最大第一描述值对应的TRP,每个所述第一描述值对应一个所述TRP。
  14. 如权利要求13所述的方法,其特征在于,所述第一描述值是以下任一项:
    与所述TRP对应的FD基向量的索引值;
    与所述TRP对应的CSI-RS资源中的资源标识号ID;
    与所述TRP对应的端口组索引值。
  15. 如权利要求4所述的方法,其特征在于,所述参考TRP组是以下任一项:
    多个第二L1-RSRP中值最大第二L1-RSRP对应的TRP组,每个所述第二L1-RSRP对应一个所述TRP组;
    多个第二组合系数中幅度最大的第二组合系数对应的TRP组;
    多个第二参考幅度中最大的第二参考幅度对应的TRP组;
    多个第二描述值中最小或最大第二描述值对应的TRP组,每个所述第二描述值对应一个所述TRP组。
  16. 如权利要求15所述的方法,其特征在于,所述第二描述值是以下任一项:
    与所述TRP组对应的FD基向量的索引值;
    与所述TRP组对应的CSI-RS资源中的资源标识号ID;
    与所述TRP组对应的端口组索引值。
  17. 如权利要求3所述的方法,其特征在于,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:
    指示与每个TRP对应的SD基向量的索引值;
    指示与每个TRP对应的FD基向量的索引值;
    指示与每个TRP对应的SD与FD基向量对的索引值;
    指示与每个TRP组对应的SD基向量的索引值;
    指示与每个TRP组对应的FD基向量的索引值;
    指示与每个TRP组对应的SD与FD基向量对的索引值。
  18. 如权利要求17所述的方法,其特征在于,所述基向量为离散傅里叶变换DFT基向量,所述向所述网络设备发送指示信息,包括:
    根据所述码本参数的数量,发送所述DFT基向量的指示信息,其中,所述DFT基向量的指示信息用于指示以下任一项:
    与每个TRP对应的SD基向量的索引值;
    与每个TRP对应的FD基向量的索引值;
    与每个TRP组对应的SD基向量的索引值;
    与每个TRP组对应的FD基向量的索引值。
  19. 如权利要求18所述的方法,其特征在于,所述向所述网络设备发送指示信息,包括:
    根据所述码本参数的数量,发送所述SD与FD基向量对的指示信息;
    其中,所述SD与FD基向量对的指示信息用于指示以下至少一项:
    与每个TRP对应的SD与FD基向量对的索引值;
    与每个TRP组对应的SD与FD基向量对的索引值。
  20. 如权利要求3所述的方法,其特征在于,所述码本参数的数量包括:为每个TRP或每个TRP组配置的SD与FD基向量对的数量,以及为所有TRP或TRP组所配置SD与FD基向量对的总数量;
    则所述方法还包括:
    处理所述SD与FD基向量对的总数量和所述SD与FD基向量对的数量,得到第五指示值,所述第五指示值用于指示与每个TRP或每个TRP组对应的SD与FD基向量对的索引值;
    所述第五指示方法包括:
    Figure PCTCN2022109262-appb-100013
    其中,
    Figure PCTCN2022109262-appb-100014
    表示从X个SD与FD基向量对中选择Y i个SD与FD基向量对,
    Figure PCTCN2022109262-appb-100015
    为向上取整,X表示为所有TRP或TRP组所配置SD与FD基向量对的总数量,Y i表示为每个TRP或每个TRP组配置的SD与FD基向量对的数量,i表示每个TRP在多个TRP中的序号,或者表示每个TRP组在多个TRP组中的序号。
  21. 如权利要求3所述的方法,其特征在于,所述基向量为特征向量,所述方法还包括:
    确定所述特征向量中每个系数对应的幅度和/或相位;
    根据所述幅度和/或相位,发送所述特征向量的指示信息;
    其中,所述特征向量的指示信息用于指示以下任一项:
    与所述每个系数对应幅度的指示信息;
    与所述每个系数对应相位的指示信息。
  22. 如权利要求3所述的方法,其特征在于,所述基向量为特征向量,所述方法还包括:
    确定所述特征向量中的多个正交基向量,以及与每个正交基向量对应的权重值;
    根据所述正交基向量和所述权重值,发送所述特征向量的指示信息。
  23. 如权利要求3所述的方法,其特征在于,所述方法还包括:
    基于第一周期,向所述网络设备发送指示信息;
    基于第二周期,向所述网络设备指示与所述TRP对应的组合系数,其中,所述第一周期大于所述第二周期。
  24. 如权利要求3所述的方法,其特征在于,数据传输层的数量是多个;其中,所述指示信息满足如下中的至少一项:
    与每层数据传输层对应的CSI-RS端口的指示信息相同;
    与每层数据传输层对应的SD基向量的指示信息相同;
    与每层数据传输层对应的FD基向量的指示信息不同;
    与每层数据传输层对应的SD与FD基向量对的指示信息相同或不同,其中,所述基向量是DFT基向量;
    与每层数据传输层对应的SD与FD基向量对的指示信息相同,其中,所述基向量是特征向量。
  25. 一种指示方法,其特征在于,由网络设备执行,所述方法包括:
    向终端设备指示码本参数信息,其中,所述码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;
    接收所述终端设备发送的指示信息,其中,所述指示信息用于指示所述终端设备为所述TRP或TRP组所选择的码本参数的索引值,所述索引值与所述码本参数的数量相关。
  26. 如权利要求25所述的方法,其特征在于,所述码本参数包括以下至少一项:
    频域FD基向量;
    空域SD基向量;
    SD与FD基向量对;
    信道状态信息参考信号CSI-RS端口。
  27. 如权利要求25-26任一项所述的方法,其特征在于,所述指示信息包括以下至少一项:
    FD基向量的指示信息;
    SD基向量的指示信息;
    SD与FD基向量对的指示信息;
    与数据传输层对应的端口的指示信息;
    多个TRP中每个TRP对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内;
    多个TRP组中每个TRP组对应窗的起始位置的指示信息,其中,候选的FD基向量在一个或多个窗内。
  28. 如权利要求27所述的方法,其特征在于,所述FD基向量的指示信息,用于指示以下至少一项:
    指示与参考TRP对应的FD基向量的索引值;
    指示与参考TRP组对应的FD基向量的索引值;
    指示与每个其他TRP对应的FD基向量的索引值;
    指示与每个其他TRP组对应的FD基向量的索引值;
    指示与多个TRP中每个TRP对应的FD基向量的索引值;
    指示与多个TRP组中每个TRP组对应的FD基向量的索引值;
    指示与多个TRP中每个TRP对应的相对FD基向量的索引值;
    指示与多个TRP组中每个TRP组对应的相对FD基向量的索引值;
    指示参考FD基向量的索引值;
    其中,所述参考TRP和所述其他TRP属于所述多个TRP,所述参考TRP组和所述其他TRP组属于所述多个TRP组,所述多个TRP或所述多个TRP组为所述终端设备提供数据服务。
  29. 如权利要求28所述的方法,其特征在于,所述码本参数信息还包括:参考数量,所述码本参数的数量是以下任一项:
    为每个TRP或每个TRP组配置的FD基向量的数量;
    为所有TRP或TRP组所配置的FD基向量的总数量;
    为每个TRP或每个TRP组配置的SD与FD基向量对的数量;
    为所有TRP或TRP组所配置SD与FD基向量对的总数量。
  30. 如权利要求29所述的方法,其特征在于,所述参考数量是以下任一项:
    预编码矩阵指示PMI的数量;
    滑动窗口所包含FD基向量的数量。
  31. 如权利要求27所述的方法,其特征在于,SD基向量、SD与FD基向量对的指示信息,用于指示以下至少一项:
    指示与每个TRP对应的SD基向量的索引值;
    指示与每个TRP对应的FD基向量的索引值;
    指示与每个TRP对应的SD与FD基向量对的索引值;
    指示与每个TRP组对应的SD基向量的索引值;
    指示与每个TRP组对应的FD基向量的索引值;
    指示与每个TRP组对应的SD与FD基向量对的索引值。
  32. 一种通信装置,其特征在于,所述装置包括:
    收发模块,用于获取网络设备指示的码本参数信息,其中,所述码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;向所述网络设备发送指示信息,其中,所述指示信息用于指示所述终端设备为所述TRP或TRP组所选择的码本参数的索引值,所述索引值与所述码本参数的数量相关。
  33. 一种通信装置,其特征在于,所述装置包括:
    收发模块,用于向终端设备指示码本参数信息,其中,所述码本参数信息包括:为传输接收节点TRP或TRP组所配置的码本参数的数量;接收所述终端设备发送的指示信息,其中,所述指示信息用于指示所述终端设备为所述TRP或TRP组所选择的码本参数的索引值,所述索引值与所述码本参数的数量相关。
  34. 一种通信系统,其特征在于,所述通信系统包括终端设备和网络设备,所述终端设备执行如权利要求1-24中任一项所述的方法,所述网络设备执行如权利要求25-31中任一项所述的方法。
  35. 一种计算机可读存储介质,用于存储有指令,当所述指令被执行时,使如权利要求1-31中任一项所述的方法。
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CN108023624A (zh) * 2016-11-03 2018-05-11 华为技术有限公司 一种预编码矩阵指示方法、装置和系统
CN112368948A (zh) * 2018-07-06 2021-02-12 日本电气株式会社 多trp码本
CN114142899A (zh) * 2021-11-24 2022-03-04 京信网络系统股份有限公司 码本选择方法、装置、介质和通信设备

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Publication number Priority date Publication date Assignee Title
CN108023624A (zh) * 2016-11-03 2018-05-11 华为技术有限公司 一种预编码矩阵指示方法、装置和系统
CN112368948A (zh) * 2018-07-06 2021-02-12 日本电气株式会社 多trp码本
CN114142899A (zh) * 2021-11-24 2022-03-04 京信网络系统股份有限公司 码本选择方法、装置、介质和通信设备

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