WO2024051810A1 - 通信方法及相关装置 - Google Patents
通信方法及相关装置 Download PDFInfo
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- WO2024051810A1 WO2024051810A1 PCT/CN2023/117690 CN2023117690W WO2024051810A1 WO 2024051810 A1 WO2024051810 A1 WO 2024051810A1 CN 2023117690 W CN2023117690 W CN 2023117690W WO 2024051810 A1 WO2024051810 A1 WO 2024051810A1
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- Prior art keywords
- csi
- antenna set
- csi report
- indication
- terminal device
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- 238000000034 method Methods 0.000 title claims abstract description 144
- 238000004891 communication Methods 0.000 title claims abstract description 71
- 230000015654 memory Effects 0.000 claims description 25
- 238000004590 computer program Methods 0.000 claims description 17
- 230000003993 interaction Effects 0.000 claims description 17
- 239000011159 matrix material Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 abstract description 14
- 238000004364 calculation method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 30
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- 230000005540 biological transmission Effects 0.000 description 20
- 238000005259 measurement Methods 0.000 description 14
- 238000013461 design Methods 0.000 description 8
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- 238000010295 mobile communication Methods 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Definitions
- the present application relates to the field of communication technology, and in particular, to a communication method and related devices.
- the 8R receiver may refer to a receiver device including 8 receiving antennas, for example, a terminal device including 8 receiving antennas. Compared with the 4R receiver, the 8R receiver can significantly improve the downlink throughput of a single user in the cell and increase the coverage of users at the edge of the cell.
- the traditional 8R receiver is difficult to implement and has high computational complexity.
- This application provides a communication method and related devices, which effectively reduces the computational complexity of 8-antenna terminal equipment when processing high-flow data.
- the first aspect provides a communication method, which can be applied to a terminal device.
- a communication method can be applied to a terminal device.
- it can be executed by the terminal device, or it can also be executed by a component (such as a chip, chip system, etc.) configured in the terminal device, or , can also be implemented by a logic module or software that can realize all or part of the functions of the terminal device, which is not limited in this application.
- the method includes: determining a first antenna set and a second antenna set, the first antenna set includes M receiving antennas, and the second antenna set includes 8-M receiving antennas, 0 ⁇ M ⁇ 8 , and M is a positive integer; receiving the first channel state information (channel state information, CSI) reporting indication and the second CSI reporting indication, the first CSI reporting indication and the second CSI reporting indication and the channel state information reference signal (CSI-reference signal, CSI-RS) is associated, the first CSI reporting indication corresponds to the first antenna set, the second CSI reporting indication corresponds to the second antenna set; sending a first CSI report and a second CSI report, where the first CSI report corresponds to the first antenna set, the second CSI report corresponds to the second antenna set, and the first CSI report is based on the first CSI reporting indication. and the CSI-RS determination, and the second CSI report is based on the second CSI reporting indication and the CSI-RS determination.
- CSI-RS channel state information reference signal
- the terminal device divides the eight receiving antennas it includes into two antenna sets, receives reporting instructions from the network device configured for each antenna set, and sends a message to the network device based on the reporting instructions and CSI-RS.
- CSI reports corresponding to the first antenna set and the second antenna set.
- the method before determining the first antenna set and the second antenna set, the method further includes: sending capability information of the terminal device, the capability information being used to Indicates that the terminal device includes two antenna sets.
- the terminal device indicated by the above capability information includes two antenna sets
- the terminal device includes two demodulation modules, or that the terminal device can support using two antenna sets to demodulate received signals respectively.
- the demodulation module is used to demodulate the data stream received by the terminal device.
- determining the first antenna set and the second antenna set includes: determining the first antenna set and the second antenna set according to a preset rule, The preset rule indicates M receiving antennas included in the first antenna set and/or 8-M receiving antennas included in the second antenna set.
- Determining two antenna sets based on preset rules can reduce the resource overhead required by the network device for configuring the first antenna set and the second antenna set.
- determining the first antenna set and the second antenna set includes: Receive first indication information, the first indication information being used to indicate M receiving antennas included in the first antenna set and/or 8-M receiving antennas included in the second antenna set; based on the first Indication information to determine the first antenna set and the second antenna set.
- the method further includes: receiving second indication information, the second indication information being used to indicate that the data stream to be transmitted is consistent with the first antenna set and /or the correspondence between the second antenna sets.
- the method further includes: receiving third indication information, the third indication information being used to indicate the connection between the data stream to be transmitted and the codeword. Correspondence.
- the terminal device decodes the received data using a decoding method corresponding to the codeword, which improves the efficiency of the terminal device in processing data.
- another communication method is provided, which method can be applied to network equipment.
- it can be executed by the network equipment, or it can also be executed by components (such as chips, chip systems, etc.) configured in the network equipment.
- it can also be implemented by a logic module or software that can realize all or part of the network device functions, which is not limited in this application.
- the method includes: sending a first CSI reporting indication and a second CSI reporting indication, the first CSI reporting indication and the second CSI reporting indication being associated with CSI-RS, the first CSI reporting indication Corresponding to the first antenna set, the second CSI reporting indication corresponds to the second antenna set; receiving a first CSI report and a second CSI report, the first CSI report corresponding to the first antenna set , the second CSI report corresponds to the second antenna set, the first CSI report is determined based on the first CSI reporting indication and the CSI-RS, and the second CSI report is based on the second The CSI reporting indication and the CSI-RS are determined.
- the network device determines the antenna set, it configures corresponding reporting instructions for the two antenna sets on the terminal device, so that the terminal device that receives the configuration information can generate and report information related to the first antenna based on the corresponding reporting instructions.
- the method further includes: receiving capability information of a terminal device, where the capability information is used to indicate that the terminal device includes two antenna sets.
- the method further includes: determining a first antenna set and a second antenna set; and sending first indication information, the first indication information being used to indicate the
- the first antenna set includes M receiving antennas and/or the second antenna set includes 8-M receiving antennas.
- the method further includes: sending second indication information, the second indication information being used to indicate that the data stream to be transmitted is consistent with the first antenna set and /or the correspondence between the second antenna sets.
- the method further includes: sending third indication information, the third indication information being used to indicate the connection between the data stream to be transmitted and the codeword. Correspondence.
- the first CSI reporting indication and the second CSI reporting indication are carried in the same reporting configuration; the first The CSI report and the second CSI report are carried in the same physical uplink control channel (PUCCH).
- PUCCH physical uplink control channel
- the first CSI reporting indication and the second CSI reporting indication are carried in different reporting configurations; A CSI report and the second CSI report are carried in different PUCCHs.
- the first CSI report includes a first rank indicator (rank indicator, RI), and the second CSI report includes a first rank indicator (RI).
- RI rank indicator
- Two RIs: the first RI and the second RI are determined based on the CSI-RS.
- the first CSI report includes a first pre-coding matrix indicator (PMI), and the first The second CSI report includes a second PMI; the first PMI and the second PMI are determined based on the CSI-RS.
- PMI pre-coding matrix indicator
- the first CSI report includes a first RI
- the second CSI report includes a second RI
- the first The RI and the second RI are determined based on the interaction information between the first antenna set and the second antenna set and the CSI-RS.
- the first CSI report includes a first PMI
- the second CSI report includes a second PMI
- the first PMI and the second PMI are based on the interaction information and the CSI-RS determined.
- the value ranges of the first RI and the second RI are agreed upon by the protocol, or the network device is a terminal. Device configuration, or determined by the terminal device.
- the terminal device can reduce the number of RI value traversals when determining the measurement information in the CSI report, effectively improving the terminal device's calculation rate and requiring lower computing power of the terminal device.
- a communication device including: a method for performing any possible implementation manner in any of the above aspects.
- the device includes a module for performing the method in any possible implementation of any of the above aspects.
- the communication device may include a module that performs one-to-one correspondence with the methods/operations/steps/actions described in any of the above aspects.
- the module may be a hardware circuit, software, or a hardware circuit. Combined with software implementation.
- the communication device is a communication chip
- the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
- the communication device is a terminal device, and the terminal device may include a transmitter for sending information or data, and a receiver for receiving information or data.
- the communication device is a network device
- the network device may include a transmitter for sending information or data, and a receiver for receiving information or data.
- the communication device is used to perform the method in any possible implementation of any of the above aspects.
- the communication device can be configured in a terminal device or a network device, or the communication device itself is a terminal device or a network device. Internet equipment.
- another communication device including a processor and a memory.
- the memory is used to store a computer program.
- the processor is used to call and run the computer program from the memory, so that the communication device performs any of the above aspects. method in any of the possible implementations.
- processors there are one or more processors and one or more memories.
- the memory may be integrated with the processor, or the memory may be provided separately from the processor.
- the communication device also includes a transmitter (transmitter) and a receiver (receiver).
- the transmitter and receiver can be set separately or integrated together, called a transceiver (transceiver).
- a communication system including a communication device for implementing the above-mentioned first aspect or any method that may be implemented in the first aspect; or, including a communication device for implementing the above-mentioned second aspect or any possible implementation method of the first aspect; Communication device in any possible way.
- the communication system may also include other devices that interact with terminal devices and/or network devices in the solution provided by the embodiments of the present application.
- a computer program product includes: a computer program (which may also be called a code, or an instruction).
- a computer program which may also be called a code, or an instruction.
- the computer program When the computer program is run, it causes the computer to perform any of the above aspects. A method among possible implementations.
- a computer-readable storage medium stores a computer program (which may also be referred to as code, or instructions) that when run on a computer causes the computer to execute any of the above aspects. method in any of the possible implementations.
- Figure 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
- Figure 2 is a schematic diagram of the architecture of an 8R receiver
- Figure 3 is a schematic flow chart of the communication method provided by the embodiment of the present application.
- Figure 4 is a schematic diagram of the architecture of an 8R receiver provided by an embodiment of the present application.
- Figure 5 is a schematic block diagram of a communication device provided by an embodiment of the present application.
- Figure 6 is a schematic block diagram of another communication device provided by an embodiment of the present application.
- LTE long term evolution
- FDD frequency division duplex
- TDD time division duplex
- UMTS universal mobile telecommunications system
- 5th generation, 5G fifth generation mobile communication system
- NR new radio
- 5G communication system under First generation mobile communication system
- 6th generation, 6G sixth generation (6th generation, 6G) communication system, or future communication system, etc.
- FIG. 1 is a schematic diagram of a communication system 100 provided by an embodiment of the present application.
- the communication system 100 includes at least two communication devices, such as a network device 110 and a terminal device 120 , where data communication can be performed between the network device 110 and the terminal device 120 through a wireless connection.
- the network device 110 can send downlink data to the terminal device 120; the terminal device 120 can also send uplink data to the network device 110.
- the network equipment in the above communication system is used to determine the resources and methods of data transmission, and notify the terminal device of the determined resource plan and data transmission method.
- the terminal device is used to transmit data according to the instructions of the network device and using the resource allocation plan and data transmission method determined by the network device.
- Data transmission here includes data reception and data transmission.
- the network device in the embodiment of this application may be an access network device or a wireless access network device, it may be a transmission reception point (TRP), or it may be an evolved base station (evolved NodeB, eNB) in the LTE system. or eNodeB), it can also be a home base station (for example, home evolved NodeB, or home Node B, HNB), a base band unit (base band unit, BBU), or a cloud radio access network (cloud radio access network, CRAN)
- the wireless controller or the network device in the scenario can be a relay station, access point, vehicle-mounted device, wearable device, network device in the 5G network or network device in the future evolved PLMN network, etc., or it can also be in WLAN
- the access point (AP) can also be a gNB in the NR system.
- the above-mentioned scheduling node can also be a city base station, a micro base station, a pico base station, a femto base station, etc.
- network equipment may include centralized unit (CU) nodes, distributed unit (DU) nodes, or a radio access network (radio access network) including CU nodes and DU nodes.
- CU centralized unit
- DU distributed unit
- radio access network radio access network
- RAN RAN equipment, or RAN equipment including a control plane CU node (CU-CP node), a user plane CU node (CU-UP node), and a DU node.
- CU-CP node control plane CU node
- CU-UP node user plane CU node
- DU node DU node
- the network equipment provides services for the cell, and the terminal equipment communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment.
- the cell may belong to a macro base station (for example, macro eNB or macro gNB, etc.) , or it can belong to the base station corresponding to a small cell.
- the small cell here can include: metro cell, micro cell, pico cell, femto cell, etc. , these small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-rate data transmission services.
- the terminal equipment in the embodiment of this application is also called user equipment (User Equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT), access terminal, user unit, user station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
- UE User Equipment
- MS mobile station
- MT mobile terminal
- access terminal user unit, user station, Mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
- the terminal device may be a device that provides voice/data connectivity to the user, such as a handheld device, a vehicle-mounted device, etc. with wireless connectivity capabilities.
- terminal devices include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality devices Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, smart grid Wireless terminals in transportation safety (transportation safety), wireless terminals in smart city (smart city), wireless terminals in smart home (smart home), cellular phones, cordless phones, session initiation protocols protocol (SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, PDAs), handheld devices with wireless communications capabilities, computing devices or other processing devices connected to wireless modems,
- This application is not limited to vehicle-mounted equipment, wearable equipment, terminal equipment in the 5G network or terminal equipment in the future evolved public land mobile communication network (public land mobile network,
- the terminal device may be a terminal device in an Internet of Things (IoT) system.
- IoT Internet of Things
- the Internet of Things is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-computer interconnection and object-object interconnection.
- the terminal device in the embodiment of the present application may be a wearable device. Wearable devices can also be called wearable smart devices. It is a general term for applying wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes, etc.
- a wearable device is a portable device that can be worn directly on the body or integrated into the user's clothing or accessories.
- Wearable devices are not just hardware devices, but can also achieve powerful functions through software support, data interaction, and cloud interaction.
- wearable smart devices include full-featured, large-sized devices that do not rely on smart devices.
- the mobile phone can realize complete or partial functions, such as smart watches or smart glasses, etc., and it can only focus on a certain type of application functions and needs to be used in conjunction with other devices such as smart phones, such as various smart bracelets and smart phones for physical sign monitoring. Jewelry etc.
- the terminal device may also be a terminal device in machine type communication (machine type communication, MTC).
- the terminal device may also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit that is built into the vehicle as one or more components or units.
- the vehicle uses the built-in vehicle-mounted module, vehicle-mounted module, Vehicle-mounted components, vehicle-mounted chips, or vehicle-mounted units can implement the method provided by this application.
- the embodiments of the present application can also be applied to the Internet of Vehicles, such as vehicle to everything (V2X), long term evolution-vehicle (LTE-V), vehicle-to-vehicle (vehicle-to-vehicle) vehicle, V2V) technology, etc.
- V2X vehicle to everything
- LTE-V long term evolution-vehicle
- V2V vehicle-to-vehicle
- V2V vehicle-to-vehicle-to-vehicle
- FIG. 1 is only a simplified schematic diagram for ease of understanding.
- the communication system 100 may also include other devices, which are not shown in FIG. 1 .
- terminal equipment uses a receiver including 8 antennas to receive downlink data to improve the spectrum efficiency of downlink transmission in the communication system.
- the 8R receiver can not only significantly improve the downlink throughput of a single user in the cell, but also increase the coverage of users at the edge of the cell.
- FIG. 2 shows a schematic diagram of the architecture of an 8R receiver.
- the receiver terminal equipment
- Y is the signal received by the receiver
- H is the channel matrix
- W is the precoding matrix
- X is the signal transmitted by the transmitter
- n is the noise of the receiver.
- the 8R receiver shown in Figure 2 communicates with a network device (for example, the terminal device 120 in Figure 1 is an 8-antenna terminal device), the downlink forwarding process is as follows:
- the network device configures a report configuration for the terminal device.
- the report configuration is associated with a CSI-RS, and the report configuration includes a reporting indication.
- the reporting indication corresponds to the 8R receiver and is used to indicate the measurement information to be reported by the terminal device;
- the terminal device sends a CSI report based on the received report configuration.
- the CSI report includes a CSI that is obtained based on the reporting indication and CSI-RS measurement and corresponds to the entire 8R receiver.
- Physical downlink shared channel (PDSCH) transmission When the number of transmission streams is less than 4 streams, single codeword transmission is used; when the number of transmission streams is greater than 4, two codeword transmission is used.
- PDSCH Physical downlink shared channel
- embodiments of the present application provide a communication method and related devices by dividing the eight receiving antennas included in the terminal device into a first antenna set and a second antenna set, and configuring corresponding antenna sets for the two antenna sets.
- the CSI reporting instruction allows the terminal device to report the first CSI report and the second CSI report respectively corresponding to the two antenna sets when reporting the CSI report, so that each antenna set can receive and process data independently, effectively reducing the the computational complexity of the receiver.
- “instruction” may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction.
- the information indicated by a certain information is called information to be indicated.
- the information to be indicated can be directly indicated, such as indicating the information to be indicated itself. Or the index of the information to be indicated, etc.
- the information to be indicated may also be indirectly indicated by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while other parts of the information to be indicated are known or agreed in advance.
- the indication of specific information can also be achieved by means of a pre-agreed (for example, protocol stipulated) arrangement order of each piece of information, thereby reducing the indication overhead to a certain extent.
- predefinition can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including terminal devices and network devices), This application does not have any specific implementation details. Make limitations.
- the "protocol” involved in the embodiments of this application may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this.
- multiple means two or more.
- “And/or” describes the association of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone, where A, B can be singular or plural.
- the character “/” generally indicates that the related objects are in an "or” relationship.
- “At least one of the following” or similar expressions thereof refers to any combination of these items, including any combination of a single item (items) or a plurality of items (items).
- At least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.
- the communication method provided by the embodiment of the present application will be described in detail below with reference to FIG. 3 .
- This method can be applied to the communication system 100 shown in Figure 1, but the embodiment of the present application is not limited thereto.
- the terminal device and the network device are used as the execution subjects of the interaction gesture as an example to illustrate the method, but this application does not limit the execution subjects of the interaction gesture.
- the terminal device in Figure 3 can also be a chip, chip system, or processor that supports the terminal device to implement the method, or can be a logic module or software that can realize all or part of the functions of the terminal device;
- the network in Figure 3 The device may also be a chip, chip system, or processor that supports the network device to implement the method, or may be a logic module or software that can realize all or part of the network device functions.
- Figure 3 is a schematic flow chart of a communication method 300 provided by an embodiment of the present application. As shown in Figure 3, the method 300 may include S301 to S303. Each step shown in Figure 3 will be introduced in detail below.
- the terminal device determines a first antenna set and a second antenna set.
- the first antenna set includes M receiving antennas.
- the second antenna set includes 8-M receiving antennas. 0 ⁇ M ⁇ 8, and M is a positive integer. .
- M can take any value from 1 to 7.
- the number of antennas included in the first antenna set and the second antenna set can be in the following seven ways:
- the first antenna set includes 1 receiving antenna
- the second antenna set includes 7 receiving antennas.
- the first antenna set includes 2 receiving antennas
- the second antenna set includes 6 receiving antennas.
- the first antenna set includes 3 receiving antennas
- the second antenna set includes 5 receiving antennas.
- the first antenna set includes 5 receiving antennas
- the second antenna set includes 3 receiving antennas.
- M 6, the first antenna set includes 6 receiving antennas, and the second antenna set includes 2 receiving antennas.
- M 7, the first antenna set includes 7 receiving antennas, and the second antenna set includes 1 receiving antenna.
- FIG 4 shows the architecture of an 8-antenna receiver provided by an embodiment of the present application.
- the 8 receiving antennas of the 8R receiver are divided into two groups, each corresponding to an antenna set, and each antenna set corresponds to a demodulation module.
- receiving antennas 1 to 4 belong to the first antenna set, corresponding to In the first demodulation module
- the receiving antennas 5 to 8 belong to the second antenna set and correspond to the second demodulation module.
- each grouped antenna set can be regarded as a 4R receiver.
- the above demodulation module is used to process the data stream received by the antenna set.
- the first demodulation module is used to process the data stream received by the first set of antennas
- the second demodulation module is used to process the data stream received by the second set of antennas.
- the above-mentioned grouping manner of receiving antennas is only an example.
- the second antenna set includes 4 to 8; or other combinations. This application does not limit this.
- the signal model of the receiver is as follows:
- Y 1 is the signal received by the first antenna set
- H 1 is the channel matrix measured based on the CSI-RS received by the first antenna set
- W 1 is the precoding matrix of the first antenna set
- X 1 is the network device
- n 1 is the noise vector of the first antenna set
- Y 2 is the signal received by the second antenna set
- H 2 is the channel matrix measured based on the CSI-RS received by the second antenna set
- W 2 is the precoding matrix of the second antenna set
- X 2 is the transmission of the network device signal
- n 2 is the noise of the second antenna set.
- the terminal device may determine the first antenna set and the second antenna set based on a preset rule.
- the preset rule indicates M receiving antennas included in the first antenna set and/or 8-M receiving antennas included in the second antenna set.
- the preset rule indicates the corresponding relationship between the eight receiving antennas and the first antenna set and the second antenna set.
- the preset rule indicates the corresponding relationship between the first antenna set and the second antenna set and the eight receiving antennas.
- the above preset rules may be rules negotiated between the terminal device and the network device during the configuration phase; they may also be rules negotiated and determined during the signaling interaction process. It can be set manually, based on historical data, or based on big data analysis. This application does not limit the setting method of the above preset rules.
- the above preset rule is: the first antenna set includes receiving antennas with antenna numbers 1 to 4, and the second antenna set includes receiving antennas with antenna numbers 5 to 8; or, the first antenna set includes receiving antennas with antenna numbers 5 to 8; 1, 3, 5, and 7 receiving antennas, the second antenna set includes receiving antennas with antenna numbers 2, 4, 6, and 8; or the first antenna set includes receiving antennas with antenna numbers 1, 2, 5, and 6. , the second antenna set includes receiving antennas with antenna numbers 3, 4, 7, and 8; or the first antenna set includes receiving antennas with antenna numbers 3, 4, 5, and 6, and the second antenna set includes antennas with antenna numbers 1 , 2, 7, 8 receiving antennas.
- 1 to 8 are the numbers of the eight receiving antennas.
- the terminal device may determine the first antenna set and the first antenna set based on instructions from the network device.
- the network device determines the first antenna set and the second antenna set, and sends first indication information to the terminal device, used to indicate the M receiving antennas included in the first antenna set and/or the 8 receiving antennas included in the second antenna set. -M receiving antennas.
- the terminal device receives the first indication information, and determines the first antenna set and the second antenna set based on the first indication information.
- the network device can divide the eight receiving antennas of the terminal device into two groups based on the following steps:
- Step 1 Based on formula (1), determine the receiving antenna i from the 8 receiving antennas:
- Step 2 Based on formula (2), determine the three antennas with strong channel correlation with antenna i:
- H represents the channel matrix of 8 receiving antennas, and i and j are the antenna numbers.
- the four antennas determined based on formula (1) and formula (2) are regarded as an antenna set, for example, the first antenna set or the second antenna set, and the remaining four antennas are regarded as an antenna set.
- the network device sends a first CSI reporting indication and a second CSI reporting indication to the terminal device.
- the first CSI reporting indication corresponds to the first antenna set
- the second CSI reporting indication corresponds to the second antenna set.
- the terminal device receives the first CSI reporting indication and the second CSI reporting indication.
- the first CSI reporting indication and the second CSI reporting indication are associated with CSI-RS. That is to say, when the terminal device performs CSI measurement reporting, the network device needs to send the first CSI reporting indication, the second CSI reporting indication and the CSI-RS to the terminal device.
- the correspondence between the above first CSI reporting indication and the first antenna set can be understood as the first CSI reporting indication is configured by the network device for the first antenna set, and the correspondence between the above second CSI reporting indication and the second antenna set can be understood as the second CSI reporting Indicates that the network device is configured for the second set of antennas. That is, the first CSI reporting indication is used to indicate the measurement information that needs to be reported by the first antenna set, and the second CSI reporting indication is used to indicate the measurement information that needs to be reported by the second antenna set.
- the above reporting indication is used to indicate the type of measurement information reported by the terminal device, for example, PMI information, channel quality indicator (channel quality indicator, CQI) information, RI information, or layer indicator (layer indicator, LI) information, etc.
- the terminal device sends a first CSI report and a second CSI report to the network device.
- the first CSI report corresponds to the first antenna set
- the second CSI report corresponds to the second antenna set.
- the network device receives the first CSI report and the second CSI report.
- the first CSI report is determined based on the first CSI reporting indication and CSI-RS
- the second CSI report is determined based on the second CSI reporting indication and CSI-RS. That is, the first CSI report is that the first antenna set determines the type of measurement information in the CSI report based on the first CSI reporting indication; the second CSI report is that the second antenna set determines the measurement information in the CSI report based on the second CSI reporting indication. Type of information; determine the measurement information in the CSI report based on CSI-RS.
- the above-mentioned first CSI report includes a first RI (for example, denoted as RI 1 ), and the second CSI report includes a second RI (for example, denoted as RI 2 ).
- the first CSI report includes a first RI (for example, RI 1 ) and a first PMI (for example, PMI 1 )
- the second CSI report includes a second RI (for example, RI 2 ) and a second PMI (for example, PMI 1 ).
- PMI for example, denoted as PMI 2 ).
- RI 1 , PMI 1 , RI 2 and PMI 2 are determined based on CSI-RS.
- the two antenna sets cannot interact can be understood to mean that the two demodulation modules corresponding to the two antenna sets are independent of each other, that is, the terminal equipment can be regarded as two independent 4R receivers. Therefore, in this case, the calculation of the measurement information about CSI on each demodulation module can be independent of each other. You can refer to the calculation of the measurement information about CSI in the existing 4R receiver or the 8R receiver shown in Figure 2. The process will not be described again here.
- RI 1 , PMI 1 , RI 2 and PMI 2 are based on the interaction information between the first antenna set and the second antenna set and CSI-RS definite.
- the two antenna sets can interact can be understood to mean that the demodulation modules corresponding to the two antenna sets can interact, that is, the information (such as channel information) on the two demodulation modules can be sent to each other to the other demodulation module. Therefore, in case 2, the measurement information in the first CSI report and the second CSI report may be based on the interaction between the first antenna set (first demodulation module) and the second antenna set (second demodulation module) information as well as determined by CSI-RS.
- the above interactive information can be understood as channel information, that is, the two antenna sets measure H 1 and H 2 respectively based on the received CSI-RS, and the first antenna set can obtain H 2 measured by the second antenna set, and the second antenna set can obtain H 2 measured by the second antenna set.
- H 1 measured by the first antenna set can be obtained.
- H 1 is a channel matrix measured based on the CSI-RS received by the first antenna set
- H 2 is a channel matrix measured based on the CSI-RS received by the second antenna set.
- RI 1 , RI 2 , PMI 1 and PMI 2 can be determined based on the following formula:
- W 1 is the precoding matrix of the first antenna set
- W 2 is the precoding matrix of the second antenna set
- ⁇ 2 is the noise power
- PMI 1 is used to indicate W 1
- PMI 2 is used to indicate W 2 .
- the value ranges of RI 1 and RI 2 in the above formula are agreed upon by the protocol, configured by the network device for the terminal device, or determined by the terminal device.
- the terminal device may send the determined value range to the network device or not, and this application does not limit this.
- the value range of (RI 1 , RI 2 ) agreed in the agreement can be: (1,1), (1,2), (2,1), (2,2), (2,3), (3,2)(3,3), (3,4), (4,3), (4,4).
- the terminal device uses the above formula to traverse each set of values of (RI 1 , RI 2 ), and obtains the value of each set of values,
- the optimal solution of this function is W 1 and W 2 .
- multiple groups of RI 1 , RI 2 , PMI 1 and PMI 2 can be determined (that is, each group of RI values corresponds to one group of PMI).
- a set of values that maximizes the above function value can be determined based on multiple sets of values, and the set of values can be reported to the network device.
- RI 1 , RI 2 , PMI 1 and PMI 2 may be performed by the first demodulation module and/or the second demodulation module on the terminal device. For example, RI 1 , RI 2 , PMI 1 and PMI 2 are determined by the first demodulation module, then the first demodulation module sends RI 2 and PMI 2 to the second demodulation module; RI 1 , RI 2 , PMI 1 And PMI 2 is determined by the second demodulation module, then the second demodulation module sends RI 1 and PMI 1 to the first demodulation module.
- RI and PMI can be determined using different calculation formulas according to the requirements of the communication system. This application does not limit the methods used to calculate RI and PMI.
- the network device configures the reporting instruction for each antenna set for the terminal device, so that the terminal device that receives the reporting instruction can communicate with the third party based on the reporting instruction and CSI-RS report.
- the CSI reports corresponding to one antenna set and the second antenna set enable the two antenna sets on the terminal device to process the data received separately. Stream, effectively reducing the computational complexity of terminal devices when processing data streams.
- the method 300 further includes: the terminal device sending capability information of the terminal device to the network device, where the capability information is used to indicate that the terminal device includes two antenna sets.
- the network device receives the capability information.
- the terminal device indicated by the above capability information includes two antenna sets, which can be understood to mean that the terminal device includes two demodulation modules, or that the terminal device can support using two antenna sets to demodulate received signals respectively.
- the demodulation module is used to demodulate the data stream received by the terminal device.
- the above two demodulation modules may be called a first demodulation module and a second demodulation module respectively, where the first demodulation module may be used to process the data stream received on the first antenna set, and the second demodulation module may It is used to process the data stream received by the second antenna set, and the receiving antennas included in the first antenna set and the receiving antennas included in the second antenna set are different.
- the above-mentioned first CSI reporting indication and second CSI reporting indication are carried in the same reporting setting (reporting setting); the first CSI report and the second CSI report are carried in the same PUCCH.
- the first CSI reporting indication and the second CSI reporting indication are respectively carried in different reporting configurations; the first CSI report and the second CSI report are carried in different PUCCHs respectively.
- the network device sends a reporting setting to the terminal device.
- the reporting setting includes two CSI reporting instructions and corresponds to two antenna sets respectively.
- the network device sends two reporting settings to the terminal device, and each reporting setting includes a CSI reporting indication corresponding to an antenna set.
- the specific description of the reporting setting can refer to the existing agreement and will not be repeated here.
- the CSI report reported by the terminal device can be carried and fed back on a PUCCH.
- the two CSI reports reported by the terminal device can be carried on two PUCCHs respectively for feedback, that is, one PUCCH carries one CSI report.
- the method 300 further includes: the network device sends second indication information, the second indication information is used to indicate the connection between the data stream to be transmitted and the first antenna set and/or the second antenna set. Correspondence. Correspondingly, the terminal device receives the second indication information.
- the network device sends the data stream to be transmitted.
- the terminal device receives the data stream to be transmitted, and determines the data stream received by the first antenna set and/or the second antenna set based on the second indication information.
- the method 300 further includes: the network device sending third indication information, the third indication information being used to indicate the correspondence between the data stream to be transmitted and the codeword.
- the terminal device receives the third indication information.
- the precoding methods for data streams to be transmitted received by the same antenna set are the same, but the encoding methods may be different, that is, the data streams received by the same antenna set may correspond to different codewords. Therefore, the terminal device needs to further determine the corresponding relationship between the data stream and the codeword, so as to decode the data stream.
- the network device sends a data stream to be transmitted.
- the terminal device receives the data stream; the terminal device determines the data stream received by the first antenna set and the second antenna set based on the second indication information; and determines the encoding method used for the received data stream based on the third indication information;
- the first demodulation module and the second demodulation module on the terminal device respectively decode the received data stream using a decoding method corresponding to the encoding method.
- the first demodulation module is used to process the data stream received by the first antenna set
- the second demodulation module is used to process the data stream received by the second antenna set.
- the network device and the terminal device can determine the codewords corresponding to the first antenna set and the second antenna set through protocol agreement or preconfiguration. . For example, it is determined that the first set of antennas receives the data stream of codeword 0, and the second set of antennas receives the data stream of codeword 1.
- the codeword corresponding to the first antenna set is codeword 0, and the codeword corresponding to the second antenna set is codeword 1. That is, when the network device sends a data stream to the terminal device, it needs to send the data stream with codeword 0 to the first antenna set and the data stream with codeword 1 to the second antenna set. In this way, when the terminal device receives the data stream, the first antenna set and/or the second antenna set can decode the received data stream based on the corresponding relationship between the above-mentioned antenna set and the codeword.
- N is an integer greater than 8
- the N receiving antennas can be divided into P groups (P is an integer greater than or equal to 2), and the network device can configure P CSI reporting instructions for the terminal device, corresponding to the P antennas respectively. gather.
- Configuration of terminal equipment based on network equipment is configured to report P CSI reports corresponding to P antenna sets.
- the report configuration of the P CSI report indication bearers, the number of PUCCHs carried by the CSI report, and the grouping method of the P antenna sets please refer to the relevant description of the above method 300, and will not be described again here.
- Figure 5 is a communication device 500 provided by an embodiment of the present application. As shown in Figure 5, the device 500 includes: a processing module 510 and a transceiver module 520.
- the device 500 is the above-mentioned terminal device, or a chip or chip system of the terminal device.
- the processing module 510 is used to: determine a first antenna set and a second antenna set, the first antenna set includes M receiving antennas, and the second antenna set includes 8-M receiving antennas, 0 ⁇ M ⁇ 8 , and M is a positive integer;
- the transceiver module 520 is configured to: receive a first CSI reporting indication and a second CSI reporting indication, where the first CSI reporting indication and the second CSI reporting indication are associated with CSI-RS, the The first CSI reporting indication corresponds to the first antenna set, the second CSI reporting indication corresponds to the second antenna set; and, sending a first CSI report and a second CSI report, the first CSI report
- the first antenna set corresponds to the second CSI report and the second antenna set corresponds to the first CSI report.
- the first CSI report is determined based on the first CSI reporting indication and the CSI-RS.
- the second CSI The report is determined based on the second CSI reporting indication and the CSI-RS.
- the transceiver module 520 is also configured to: send capability information of the device 500, where the capability information is used to indicate that the device includes two antenna sets.
- the processing module 510 is further configured to: determine the first antenna set and the second antenna set according to a preset rule, where the preset rule indicates M receiving antennas and/or the first antenna set includes Or the second antenna set includes 8-M receiving antennas.
- the transceiver module 520 is further configured to: receive first indication information, the first indication information being used to indicate M receiving antennas included in the first antenna set and/or 8 receiving antennas included in the second antenna set. -M receiving antennas; the processing module 510 is further configured to: determine the first antenna set and the second antenna set based on the first indication information.
- the first CSI reporting indication and the second CSI reporting indication are carried in the same reporting configuration; the first CSI report and the second CSI report are carried in the same physical uplink control channel PUCCH.
- the first CSI reporting indication and the second CSI reporting indication are carried in different reporting configurations; the first CSI report and the second CSI report are carried in different PUCCHs.
- the first CSI report includes a first RI
- the second CSI report includes a second RI; the first RI and the second RI are determined based on the CSI-RS.
- the first CSI report includes a first PMI
- the second CSI report includes a second PMI; the first PMI and the second PMI are determined based on the CSI-RS.
- the first CSI report includes a first RI
- the second CSI report includes a second RI
- the first RI and the second RI are based on the first antenna set and the second
- the interaction information between antenna sets and the CSI-RS are determined.
- the first CSI report includes a first PMI
- the second CSI report includes a second PMI
- the first PMI and the second PMI are determined based on the interaction information and the CSI-RS. of.
- the transceiver module 520 is further configured to: receive second indication information, the second indication information being used to indicate the distance between the data stream to be transmitted and the first antenna set and/or the second antenna set. Correspondence.
- the transceiver module 520 is further configured to receive third indication information, where the third indication information is used to indicate the correspondence between the data stream to be transmitted and the codeword.
- the device 500 can be specifically a terminal device in the above embodiment, and the device 500 can be used to execute various processes corresponding to the terminal device in the above method embodiment and/or To avoid repetition, the steps will not be repeated here.
- the device 500 is a network device, or a chip or chip system of a network device.
- the transceiver module 520 is configured to: send a first CSI reporting indication and a second CSI reporting indication, where the first CSI reporting indication and the second CSI reporting indication are associated with CSI-RS, and the first CSI reporting indication Corresponding to the first antenna set, the second CSI reporting indication corresponds to the second antenna set; and, receiving a first CSI report and a second CSI report, the first CSI
- the report corresponds to the first antenna set
- the second CSI report corresponds to the second antenna set
- the first CSI report is determined based on the first CSI reporting indication and the CSI-RS
- the third CSI report corresponds to the second antenna set.
- the second CSI report is determined based on the second CSI reporting indication and the CSI-RS.
- the transceiver module 520 is also configured to: receive capability information of the terminal device, where the capability information is used to indicate that the terminal device includes two antenna sets.
- the processing module 510 is configured to: determine the first antenna set and the second antenna set; the transceiving module 510 is also configured to: send first indication information, the first indication information is used to indicate that the first antenna set includes M receiving antennas and/or the second antenna set includes 8-M receiving antennas.
- the first CSI reporting indication and the second CSI reporting indication are carried in the same reporting configuration; the first CSI report and the second CSI report are carried in the same physical uplink control channel PUCCH.
- the first CSI reporting indication and the second CSI reporting indication are carried in different reporting configurations; the first CSI report and the second CSI report are carried in different PUCCHs.
- the first CSI report includes a first RI
- the second CSI report includes a second RI; the first RI and the second RI are determined based on the CSI-RS.
- the first CSI report includes a first PMI
- the second CSI report includes a second PMI; the first PMI and the second PMI are determined based on the CSI-RS.
- the first CSI report includes a first RI
- the second CSI report includes a second RI
- the first RI and the second RI are based on the first antenna set and the second
- the interaction information between antenna sets and the CSI-RS are determined.
- the first CSI report includes a first PMI
- the second CSI report includes a second PMI
- the first PMI and the second PMI are determined based on the interaction information and the CSI-RS. of.
- the transceiver module 520 is further configured to: send second indication information, the second indication information being used to indicate the distance between the data stream to be transmitted and the first antenna set and/or the second antenna set. Correspondence.
- the transceiving module 520 is also configured to send third indication information, where the third indication information is used to indicate the correspondence between the data stream to be transmitted and the codeword.
- the device 500 may be specifically a network device in the above method embodiment, and the device 500 may be used to perform various processes corresponding to the network device in the above method embodiment and/or Or steps, to avoid repetition, will not be repeated here.
- module may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a proprietary processor, or a group of processors) used to execute one or more software or firmware programs. processor, etc.) and memory, merged logic circuitry, and/or other suitable components to support the described functionality.
- ASIC application specific integrated circuit
- processor such as a shared processor, a proprietary processor, or a group of processors
- memory such as a shared logic circuit, and/or other suitable components to support the described functionality.
- the device 500 can be specifically a terminal device or a network device in the above embodiment, or the functions of the terminal device or network device in the above embodiment can be integrated into the device 500 , the apparatus 500 can be used to execute various processes and/or steps corresponding to the terminal device or the network device in the above method embodiments. To avoid duplication, they will not be described again here.
- the above-mentioned device 500 has the function of realizing the corresponding steps performed by the terminal device or the network device in the above-mentioned method; the above-mentioned functions can be realized by hardware, or can also be realized by hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above functions.
- the above-mentioned sending module 510 may be a communication interface, such as a transceiver interface.
- Figure 6 is another communication device 600 provided by an embodiment of the present application.
- the device 600 includes a processor 610, a memory 620, and a transceiver 630. Among them, the processor 610, the memory 620 and the transceiver 630 are connected through an internal connection path.
- the memory 620 is used to store instructions, and the processor 610 is used to execute the instructions stored in the memory 620, so that the device 600 can perform the above method embodiments. Communication methods provided.
- the functions of the device 500 in the above embodiment can be integrated into the device 600, and the device 600 can be used to perform various steps and/or processes corresponding to the terminal equipment in the above method embodiment, or the device 600 can also be used to perform Each step and/or process corresponding to the network device in the above method embodiment.
- the memory 620 may include read-only memory and random access memory and provide instructions and data to the processor.
- a portion of the memory may also include non-volatile random access memory.
- the memory may also store device type information.
- the processor 610 can be used to execute instructions stored in the memory, and when the processor executes the instructions, the processor 610 can execute the above Each step and/or process corresponding to the terminal device in the above method embodiment, or the processor 610 can execute each step and/or process corresponding to the network device in the above method embodiment.
- the processor 610 may be a central processing unit (CPU), and the processor 610 may also be other general-purpose processors or digital signal processors (DSP). , ASIC, field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- the processor 610 may be a microprocessor or the processor 610 may be any conventional processor or the like.
- each step of the above method can be completed by instructions in the form of hardware integrated logic circuits or software in the processor.
- the steps of the methods disclosed in conjunction with the embodiments of the present application can be directly implemented by a hardware processor for execution, or can be executed by a combination of hardware and software modules in the processor.
- the software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field.
- the storage medium is located in the memory, and the processor executes the instructions in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
- This application also provides a computer-readable medium on which a computer program is stored. When executed by a computer, the computer program implements the functions of the terminal device or network device in any of the above method embodiments.
- This application also provides a computer program product, which, when executed by a computer, implements the functions of the terminal device or network device in any of the above method embodiments.
- the disclosed systems, devices and methods can be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division. In actual implementation, there may be other division methods.
- multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.
- the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
- each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.
- the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program code. .
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Abstract
本申请提供了一种通信方法及相关装置,有效地降低了8天线的终端设备在处理高流数据时的计算复杂度。该方法包括:终端设备确定第一天线集合和第二天线集合,该第一天线集合包括M根接收天线,第二天线集合包括8-M根接收天线,0<M<8,且M为正整数;网络设备向终端设备发送与第一天线集合对应的第一CSI上报指示和与第二天线集合对应的第二CSI上报指示;终端设备基于接收到的上报指示向网络设备发送与第一天线集合对应的第一CSI报告和与第二天线集合对应的第二CSI报告。
Description
本申请要求于2022年09月08日提交中国专利局、申请号为202211097004.7、申请名称为“通信方法及相关装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,尤其涉及一种通信方法及相关装置。
在通信系统中,为了满足下行链路峰值传输速率达到1.6千兆(Gbps)的需求。因此,在下行传输过程中通过使用8天线(radio)接收机(简称:8R接收机)来提升频谱效率。8R接收机可以是指包括8根接收天线的接收机设备,例如,包括8根接收天线的终端设备。相较于4R接收机,8R接收机可以显著提高小区中单个用户的下行吞吐量,增加小区边缘用户的覆盖范围。
然而,在通信系统中传输的数据流数较高(例如,数据流数大于4流)时,传统的8R接收机实现难度大、且计算复杂度高。
因此,亟需一种新型8R接收机架构,以解决传统8R接收机在传输高流数据时实现难度大、计算复杂度高的问题。
发明内容
本申请提供一种通信方法及相关装置,有效地降低了8天线的终端设备在处理高流数据时的计算复杂度。
第一方面,提供了一种通信方法,该方法可应用于终端设备,例如,可以由终端设备执行,或者,也可以由配置在终端设备中的部件(如芯片、芯片系统等)执行,或者,还可以由能够实现全部或部分终端设备功能的逻辑模块或软件实现,本申请对此不作限定。
示例性地,该方法包括:确定第一天线集合和第二天线集合,所述第一天线集合包括M根接收天线,所述第二天线集合包括8-M根接收天线,0<M<8,且M为正整数;接收第一信道状态信息(channel state information,CSI)上报指示和第二CSI上报指示,所述第一CSI上报指示和所述第二CSI上报指示与信道状态信息参考信号(CSI-reference signal,CSI-RS)相关联,所述第一CSI上报指示与所述第一天线集合对应,所述第二CSI上报指示与所述第二天线集合对应;发送第一CSI报告和第二CSI报告,所述第一CSI报告与所述第一天线集合对应,所述第二CSI报告与所述第二天线集合对应,所述第一CSI报告基于所述第一CSI上报指示和所述CSI-RS确定,所述第二CSI报告是基于所述第二CSI上报指示和所述CSI-RS确定。
基于此方法,终端设备将自身包括的8根接收天线分为两个天线集合,并通过接收来自网络设备针对每个天线集合配置的上报指示,并基于上报指示和CSI-RS,向网络设备发送与第一天线集合和第二天线集合对应的CSI报告,这样,终端设备在接收到数据流时,这两个天线集合对应的解调模块可以分别处理各自接收到的数据流,有效地降低了终端设备在处理数据流时的计算复杂度。
结合第一方面,在第一方面的某些实现方式中,在所述确定第一天线集合和第二天线集合之前,所述方法还包括:发送终端设备的能力信息,所述能力信息用于指示所述终端设备包括两个天线集合。
上述能力信息所指示的终端设备包括两个天线集合可以理解为终端设备包括两个解调模块,或者说,终端设备可以支持使用两个天线集合分别对接收到的信号进行解调。其中,解调模块用于对终端设备接收到的数据流进行解调。
结合第一方面,在第一方面的某些实现方式中,所述确定第一天线集合和第二天线集合,包括:根据预设规则确定所述第一天线集合和所述第二天线集合,所述预设规则指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线。
基于预设规则确定两个天线集合,可以减少网络设备因配置第一天线集合和第二天线集合所需要的资源开销。
结合第一方面,在第一方面的某些实现方式中,所述确定第一天线集合和第二天线集合,包括:接
收第一指示信息,所述第一指示信息用于指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线;基于所述第一指示信息,确定所述第一天线集合和所述第二天线集合。
结合第一方面,在第一方面的某些实现方式中,所述方法还包括:接收第二指示信息,所述第二指示信息用于指示待传输的数据流与所述第一天线集合和/或所述第二天线集合之间的对应关系。
结合第一方面,在第一方面的某些实现方式中,所述方法还包括:接收第三指示信息,所述第三指示信息用于指示所述待传输的数据流与码字之间的对应关系。
终端设备基于第三指示信息采用与码字对应的译码方式对接收的数据进行译码,提高了终端设备处理数据的效率。
第二方面,提供了另一种通信方法,该方法可应用于网络设备,例如,可以由网络设备执行,或者,也可以由配置在网络设备中的部件(如芯片、芯片系统等)执行,或者,还可以由能够实现全部或部分网络设备功能的逻辑模块或软件实现,本申请对此不作限定。
示例性地,该方法包括:发送第一CSI上报指示和第二CSI上报指示,所述第一CSI上报指示和所述第二CSI上报指示与CSI-RS相关联,所述第一CSI上报指示与所述第一天线集合对应,所述第二CSI上报指示与所述第二天线集合对应;接收第一CSI报告和第二CSI报告,所述第一CSI报告与所述第一天线集合对应,所述第二CSI报告与所述第二天线集合对应,所述第一CSI报告基于所述第一CSI上报指示和所述CSI-RS确定,所述第二CSI报告是基于所述第二CSI上报指示和所述CSI-RS确定。
基于此,网络设备确定天线集合后,为终端设备上的两个天线集合分别配置对应的上报指示,使得接收到该配置信息的终端设备可以基于各自对应的上报指示,生成并上报与第一天线集合对应的CSI报告和第二天线集合对应的CSI报告,这样,终端设备在接收到数据流时,两个天线集合可以分别处理各自接收到的数据流,有效地降低终端设备在处理数据流时的计算复杂度。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:接收终端设备的能力信息,所述能力信息用于指示所述终端设备包括两个天线集合。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:确定第一天线集合和第二天线集合;发送第一指示信息,所述第一指示信息用于指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:发送第二指示信息,所述第二指示信息用于指示待传输的数据流与所述第一天线集合和/或所述第二天线集合之间的对应关系。
结合第二方面,在第二方面的某些实现方式中,所述方法还包括:发送第三指示信息,所述第三指示信息用于指示所述待传输的数据流与码字之间的对应关系。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一CSI上报指示和所述第二CSI上报指示携带在同一报告配置中;所述第一CSI报告和所述第二CSI报告承载于同一物理上行控制信道(physical uplink control channel,PUCCH)中。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一CSI上报指示和所述第二CSI上报指示携带在不同的报告配置中;所述第一CSI报告和所述第二CSI报告承载于不同的PUCCH中。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一CSI报告包括第一秩指示(rank indicator,RI),所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述CSI-RS确定的。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一CSI报告包括第一预编码矩阵指示(pre-coding matrix indicator,PMI),所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述CSI-RS确定的。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述第一天线集合和所述第二天线集合之间的交互信息以及所述CSI-RS确定的。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述交互信息和所述
CSI-RS确定的。
结合第一方面和第二方面,在第一方面和第二方面的某些实现方式中,所述第一RI和所述第二RI的取值范围是协议约定的,或是网络设备为终端设备配置的,或是终端设备确定的。
基于此方案,终端设备在确定CSI报告中的测量信息时,可以减少遍历RI取值的次数,有效地提高了终端设备计算速率,对终端设备的计算能力要求较低。
第三方面,提供了一种通信装置,包括:用于执行上述任一方面中任一种可能的实现方式中的方法。具体地,该装置包括用于执行上述任一方面中任一种可能的实现方式中的方法的模块。
在一种设计中,该通信装置可以包括执行上述任一方面中所描述的方法/操作/步骤/动作所一一对应的模块,该模块可以是硬件电路,也可是软件,也可以是硬件电路结合软件实现。
在另一种设计中,该通信装置为通信芯片,通信芯片可以包括用于发送信息或数据的输入电路或者接口,以及用于接收信息或数据的输出电路或者接口。
在另一种设计中,该通信装置为终端设备,终端设备可以包括用于发送信息或数据的发射机,以及用于接收信息或数据的接收机。
在另一种设计中,该通信装置为网络设备,网络设备可以包括用于发送信息或数据的发射机,以及用于接收信息或数据的接收机。
在另一种设计中,该通信装置用于执行上述任一方面任意可能的实现方式中的方法,该通信装置可以配置在终端设备或网络设备中,或者该通信装置本身即为上终端设备或网络设备。
第四方面,提供了另一种通信装置,包括,处理器和存储器,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该通信装置执行上述任一方面中任一种可能实现方式中的方法。
可选地,所述处理器为一个或多个,所述存储器为一个或多个。
可选地,所述存储器可以与所述处理器集成在一起,或者所述存储器与处理器分离设置。
可选地,该通信设备还包括,发射机(发射器)和接收机(接收器),发射机和接收机可以分离设置,也可以集成在一起,称为收发机(收发器)。
第五方面,提供了一种通信系统,包括用于实现上述第一方面或第一方面的任一种可能实现的方法的通信装置;或者,包括用于实现上述第二方面或第二方面的任一种可能实现的方法的通信装置。
在一个可能的设计中,该通信系统还可以包括本申请实施例所提供的方案中与终端设备和/或网络设备进行交互的其他设备。
第六方面,提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序(也可以称为代码,或指令),当所述计算机程序被运行时,使得计算机执行上述任一方面中任一种可能实现方式中的方法。
第七方面,提供了一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序(也可以称为代码,或指令)当其在计算机上运行时,使得计算机执行上述任一方面中任一种可能实现方式中的方法。
图1是本申请实施例提供的一种通信系统的示意图;
图2是一种8R接收机的架构示意图;
图3是本申请实施例提供的通信方法的示意性流程图;
图4是本申请实施例提供的一种8R接收机的架构示意图;
图5是本申请实施例提供的一种通信装置的示意性框图;
图6是本申请实施例提供的另一种通信装置的示意性框图。
下面将结合附图,对本申请中的技术方案进行描述。
本申请提供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、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)系统、通用移动通信系统(universal mobile telecommunications system,UMTS)、第五代(5th generation,5G)移动通信系统、新无线(new radio,NR)系统或者其他演进的通信系统,以及5G通信系统的下
一代移动通信系统,第六代(6th generation,6G)通信系统,或未来通信系统等。
为便于理解本申请实施例,首先结合图1对适用于本申请实施例的通信系统进行详细介绍。
图1是本申请实施例提供的一种通信系统100的示意图。如图1所示,该通信系统100包括至少两个通信设备,例如,网络设备110和终端设备120,其中,网络设备110和终端设备120之间可以通过无线连接进行数据通信。具体而言,网络设备110可以向终端设备120发送下行数据;终端设备120也可以向网络设备110发送上行数据。
上述通信系统中的网络设备用于确定数据传输的资源和方式,并将确定好的资源方案和数据传输方式通知终端设备。终端设备用于根据网络设备的指示,采用网络设备确定的资源分配方案和数据传输方式进行数据传输。这里的数据传输,包括数据的接收和数据的发送。
本申请实施例中的网络设备可以是接入网设备或无线接入网设备,它可以是传输接收点(transmission reception point,TRP),还可以是LTE系统中的演进型基站(evolved NodeB,eNB或eNodeB),还可以是家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(base band unit,BBU),还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等,还可以是WLAN中的接入点(access point,AP),还可以是NR系统中的gNB,上述调度节点还可以是城市基站、微基站、微微基站、毫微微基站等等,或者是具有调度功能的终端设备。本申请对此不作限定。
在一种网络结构中,网络设备可以包括集中单元(centralized unit,CU)节点、或分布单元(distributed unit,DU)节点、或是包括CU节点和DU节点的无线接入网络(radio access network,RAN)设备、或者是包括控制面CU节点(CU-CP节点)和用户面CU节点(CU-UP节点)以及DU节点的RAN设备。
网络设备为小区提供服务,终端设备通过网络设备分配的传输资源(例如,频域资源,或者说,频谱资源)与小区进行通信,该小区可以属于宏基站(例如,宏eNB或宏gNB等),也可以属于小小区(small cell)对应的基站,这里的小小区可以包括:城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
本申请实施例中的终端设备,也称为用户设备(User Equipment,UE),、移动台(mobile station,MS)、移动终端(mobile terminal,MT)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是一种向用户提供语音/数据连通性的设备,例如,具有无线连接功能的手持式设备、车载设备等。目前,一些终端设备的举例包括:手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备,虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端设备等,本申请对此并不限定。
作为示例而非限定,在本申请中,终端设备可以是物联网(internet of things,IoT)系统中的终端设备。物联网是未来信息技术发展的重要组成部分,其主要技术特点是将物品通过通信技术与网络连接,从而实现人机互连,物物互连的智能化网络。示例性地,本申请实施例中的终端设备可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备是可以直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更可以通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智
能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
作为示例而非限定,在本申请实施例中,终端设备还可以是机器类型通信(machine type communication,MTC)中的终端设备。此外,终端设备还可以是作为一个或多个部件或者单元而内置于车辆的车载模块、车载模组、车载部件、车载芯片或者车载单元等,车辆通过内置的所述车载模块、车载模组、车载部件、车载芯片或者车载单元等可以实施本申请提供的方法。因此,本申请实施例也可以应用于车联网,例如车辆外联(vehicle to everything,V2X)、车间通信长期演进技术(long term evolution-vehicle,LTE-V)、车到车(vehicle-to-vehicle,V2V)技术等。
应理解,图1仅为便于理解而示出的简化示意图,该通信系统100中还可以包括其他设备,图1中未予以画出。
目前,在通信系统中,终端设备使用包括8天线的接收机进行下行数据的接收,以提高通信系统中下行传输的频谱效率。相较于4R接收机,8R接收机不仅可以显著提高小区中单个用户的下行吞吐量,还可以增加小区边缘用户的覆盖范围。
图2示出了一种8R接收机的架构示意图。如图2所示,该接收机(终端设备)包括8个天线。该接收机的信号模型如下:
Y=HWX+n,
Y=HWX+n,
其中,Y为接收机接收的信号,H为信道矩阵,W为预编码矩阵,X是发射端发射的信号,n为接收机的噪声。
如图2所示的8R接收机与网络设备进行通信时(例如,图1中的终端设备120为8天线的终端设备),下行链路的转发流程如下:
CSI上报:网络设备为终端设备配置一个报告配置,该报告配置关联一个CSI-RS,且报告配置包括一个上报指示,该上报指示与8R接收机对应,用于指示终端设备待上报的测量信息;终端设备基于接收到的报告配置,发送CSI报告,该CSI报告中包括一个CSI,该CSI是基于上报指示和CSI-RS测量得到的,且与整个8R接收机对应。
物理下行共享信道(physical downlink shared channel,PDSCH)传输:待传输流数小于4流时,采用单码字传输;传输流数大于4时,采用两码字传输。
若需要传输高流数据时,采用如图2所示的8R接收机进行数据的接收和处理时,实现难度较大,且计算复杂度较高。
有鉴于此,本申请实施例提供了一种通信方法及相关装置,通过将终端设备包括的8根接收天线分为第一天线集合和第二天线集合,并针对两个天线集合分别配置对应的CSI上报指示,使得终端设备可以在上报CSI报告时,上报与两个天线集合分别对应的第一CSI报告和第二CSI报告,使得每个天线集合可以独立进行数据的接收和处理,有效地降低了接收机的计算复杂度。
在介绍本申请提供的通信方法之前,先做出以下几点说明。
第一,在本申请中,“指示”可以包括直接指示和间接指示,也可以包括显式指示和隐式指示。将某一信息所指示的信息称为待指示信息,则具体实现过程中,对待指示信息进行指示的方式可以有很多种,例如但不限于,可以直接指示待指示信息,如指示待指示信息本身或者该待指示信息的索引等。也可以通过指示其他信息来间接指示待指示信息,其中该其他信息与待指示信息之间存在关联关系。还可以仅仅指示待指示信息的一部分,而待指示信息的其他部分则是已知的或者提前约定的。例如,还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示,从而在一定程度上降低指示开销。
第二,在本文示出的实施例中,各术语及英文缩略语,如CSI、报告配置、上报指示等,均为方便描述而给出的示例性举例,不应对本申请构成任何限定。本申请并不排除在已有或未来的协议中定义其它能够实现相同或相似功能的术语的可能。
第三,在下文示出的实施例中第一、第二以及各种数字编号仅为描述方便进行的区分,并不用来限制本申请实施例的范围。例如,区分不同的信息等。
第四,在下文示出的实施例中,“预定义”可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不
做限定。
第五,本申请实施例中涉及的“协议”可以是指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
第六,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a、b和c中的至少一项(个),可以表示:a,或b,或c,或a和b,或a和c,或b和c,或a、b和c,其中a,b,c可以是单个,也可以是多个。
下面结合图3,详细描述本申请实施例提供的通信方法。该方法可以应用于图1所示的通信系统100,但本申请实施例不限于此。在图3中是以终端设备和网络设备作为该交互示意的执行主体为例来示意该方法,但本申请并不限制该交互示意的执行主体。例如,图3中的终端设备也可以是支持该终端设备实现该方法的芯片、芯片系统、或处理器,还可以是能实现全部或部分终端设备功能的逻辑模块或软件;图3中的网络设备也可以是支持该网络设备实现该方法的芯片、芯片系统、或处理器,还可以是能实现全部或部分网络设备功能的逻辑模块或软件。
图3是本申请实施例提供的一种通信方法300的示意性流程图。如图3所示,该方法300可以包括S301至S303,下面详细介绍图3所示的各步骤。
S301,终端设备确定第一天线集合和第二天线集合,该第一天线集合包括M根接收天线,该第二天线集合包括8-M根接收天线,0<M<8,且M为正整数。
其中,M可以取1至7中的任一值。示例性地,第一天线集合和第二天线集合包括的天线数量可以有如下7种方式:
1、M=1,第一天线集合包括1根接收天线,则第二天线集合包括7根接收天线。
2、M=2,第一天线集合包括2根接收天线,则第二天线集合包括6根接收天线。
3、M=3,第一天线集合包括3根接收天线,则第二天线集合包括5根接收天线。
4、M=4,第一天线集合包括4根接收天线,则第二天线集合包括4根接收天线。
5、M=5,第一天线集合包括5根接收天线,则第二天线集合包括3根接收天线。
6、M=6,第一天线集合包括6根接收天线,则第二天线集合包括2根接收天线。
7、M=7,第一天线集合包括7根接收天线,则第二天线集合包括1根接收天线。
应理解,在每一种方式下可以有多种天线分组方式。下面以M=4为例,结合图4详细说明天线分组情况。
图4示出了本申请实施例提供的一种8天线接收机的架构。如图4所示,8R接收机的8根接收天线分为两组,分别对应一个天线集合,且每个天线集合对应一个解调模块,其中,接收天线1~4属于第一天线集合,对应第一解调模块,接收天线5~8属于第二天线集合,对应第二解调模块。示例性地,分组后的每一个天线集合可以看作一个4R接收机。
应理解,上述解调模块用于处理天线集合接收到的数据流。示例性地,第一解调模块用于处理第一天线集合接收到的数据流,第二解调模块用于处理第二天线集合接收到的数据流。
还应理解,上述接收天线的分组方式仅是一种示例。例如,M=4时,第一天线集合包括接收天线1、3、5、7,第二天线集合包括2、4、6、8;或M=3时,第一天线集合包括接收天线1~3,第二天线集合包括4~8;或是其他的组合。本申请对此不作限定。
如图4所示,该接收机的信号模型如下:
即,
其中,Y1为第一天线集合接收的信号,H1为基于第一天线集合接收到的CSI-RS测量得到的信道矩阵,W1为第一天线集合的预编码矩阵,X1是网络设备的发射信号,n1为第一天线集合的噪声矢量。
Y2为第二天线集合接收的信号,H2为基于第二天线集合接收到的CSI-RS测量得到的信道矩阵,W2为第二天线集合的预编码矩阵,X2是网络设备的发射信号,n2为第二天线集合的噪声。
在一种实现方式中,终端设备可以基于预设规则确定第一天线集合和第二天线集合。
其中,预设规则指示第一天线集合包括的M根接收天线和/或第二天线集合包括的8-M根接收天线。或者,预设规则指示8根接收天线与第一天线集合和第二天线集合的对应关系。或者说,预设规则指示第一天线集合和第二天线集合与8根接收天线的对应关系。
应理解,上述预设规则可以是终端设备和网络设备在配置阶段协商好的规则;也可以是在信令交互的过程中协商确定的规则。其可以是人为设定的,也可以是基于历史数据设定的,或者是基于大数据分析设定的。上述预设规则的设定方式本申请对此不作限定。
示例性地,上述预设规则为:第一天线集合包括天线编号为1~4的接收天线,第二天线集合包括天线编号为5~8的接收天线;或者,第一天线集合包括天线编号为1、3、5、7的接收天线,第二天线集合包括天线编号为2、4、6、8的接收天线;或者,第一天线集合包括天线编号为1、2、5、6的接收天线,第二天线集合包括天线编号为3、4、7、8的接收天线;或者,第一天线集合包括天线编号为3、4、5、6的接收天线,第二天线集合包括天线编号为1、2、7、8的接收天线。其中,1~8为8根接收天线的编号。
应理解,上述预设规则仅示出了M=4时,第一天线集合和第二天线集合一些组合方式,并不构成对本申请实施例中两个天线集合的限定。
在另一种实现方式中,终端设备可以基于网络设备的指示确定第一天线集合和第一天线集合。示例性地,网络设备确定第一天线集合和第二天线集合,并向终端设备发送第一指示信息,用于指示第一天线集合包括的M根接收天线和/或第二天线集合包括的8-M根接收天线。对应地,终端设备接收第一指示信息,并基于第一指示信息确定第一天线集合和第二天线集合。
示例性地,网络设备可以基于如下步骤将终端设备的8根接收天线分为两组:
步骤一,基于公式(1),从8根接收天线中确定接收天线i:
步骤二,基于公式(2),确定与天线i的信道相关性较强的3根天线:
其中,H表示8根接收天线的信道矩阵,i和j为天线编号。
将基于公式(1)和公式(2)确定的4根天线作为一个天线集合,例如,第一天线集合或第二天线集合,剩余4根天线作为一个天线集合。
S302,网络设备向终端设备发送第一CSI上报指示和第二CSI上报指示,第一CSI上报指示与第一天线集合对应,第二CSI上报指示与第二天线集合对应。对应地,终端设备接收第一CSI上报指示和第二CSI上报指示。
其中,第一CSI上报指示和第二CSI上报指示与CSI-RS相关联。也就是说,在终端设备进行CSI测量上报时,网络设备要为终端设备发送第一CSI上报指示、第二CSI上报指示以及CSI-RS。
上述第一CSI上报指示与第一天线集合对应可以理解为第一CSI上报指示是网络设备针对第一天线集合配置的,上述第二CSI上报指示与第二天线集合对应可以理解为第二CSI上报指示是网络设备针对第二天线集合配置的。即,第一CSI上报指示用于指示第一天线集合需要上报的测量信息,第二CSI上报指示用于指示第二天线集合需要上报的测量信息。
应理解,上述上报指示用于指示终端设备上报的测量信息的类型,例如,PMI信息、信道质量指示(channel quality indicator,CQI)信息、RI信息、或层指示(layer indicator,LI)信息等。
S303,终端设备向网络设备发送第一CSI报告和第二CSI报告,第一CSI报告与第一天线集合对应,第二CSI报告与第二天线集合对应。对应地,网络设备接收第一CSI报告和第二CSI报告。
其中,第一CSI报告是基于第一CSI上报指示和CSI-RS确定的,第二CSI报告是基于第二CSI上报指示和CSI-RS确定的。即,第一CSI报告是第一天线集合基于第一CSI上报指示,确定CSI报告中的测量信息的类型;第二CSI报告是第二天线集合基于第二CSI上报指示,确定CSI报告中的测量信息的类型;基于CSI-RS确定CSI报告中的测量信息。
下面分两种情况介绍基于CSI-RS确定CSI报告中测量信息的过程。示例性地,上述第一CSI报告中包括第一RI(例如记为RI1),第二CSI报告中包括第二RI(例如记为RI2)。或者,上述第一CSI报告中包括第一RI(例如记为RI1)和第一PMI(例如记为PMI1),第二CSI报告中包括第二RI(例如记为RI2)和第二PMI(例如记为PMI2)。
情况一,终端设备上的两个天线集合不可交互,则RI1、PMI1、RI2和PMI2是基于CSI-RS确定的。
两天线集合不可交互可理解为两个天线集合对应的两个解调模块是相互独立的,即终端设备可以视为两个独立的4R接收机。因此,在情况一下,每个解调模块上关于CSI的测量信息的计算,可以是相互独立的,可以参照现有4R接收机或图2所示的8R接收机中关于CSI的测量信息的计算过程,此处不再赘述。
情况二,终端设备上的两个天线集合可交互,则RI1、PMI1、RI2和PMI2是基于所述第一天线集合和所述第二天线集合之间的交互信息以及CSI-RS确定的。
两天线集合可交互可理解为两个天线集合对应的解调模块可交互,即两个解调模块上的信息(例如信道信息)可以互相发送给另一解调模块。因此,在情况二下,第一CSI报告和第二CSI报告中的测量信息可以是基于第一天线集合(第一解调模块)和第二天线集合(第二解调模块)之间的交互信息以及CSI-RS确定的。
上述交互信息可以理解为信道信息,即两个天线集合分别基于接收到CSI-RS测量得到H1和H2,且第一天线集合可以获取第二天线集合测量得到的H2,第二天线集合可以获取第一天线集合测量得到的H1。其中,H1为基于第一天线集合接收到的CSI-RS测量得到的信道矩阵,H2为基于第二天线集合接收到的CSI-RS测量得到的信道矩阵。
示例性地,在两个天线集合可交互的情况下,RI1、RI2、PMI1以及PMI2可以基于如下公式确定:
其中,W1为第一天线集合的预编码矩阵,W2为第二天线集合的预编码矩阵,σ2为噪声功率,PMI1用于指示W1,PMI2用于指示W2。
可选地,上述公式中RI1和RI2的取值范围是协议约定的,或是网络设备为终端设备配置的,或是终端设备确定的。
应理解,在RI1和RI2的取值范围由终端设备确定时,终端设备可以将确定的取值范围发送给网络设备或者不向网络设备发送,本申请对此不作限定。
示例性地,协议约定的(RI1,RI2)取值范围可以是:(1,1)、(1,2)、(2,1)、(2,2)、(2,3)、(3,2)(3,3)、(3,4)、(4,3)、(4,4)。进一步地,终端设备采用上述公式遍历(RI1,RI2)的每一组取值,并求得每一组取值下,
的最优解,则该函数的最优解为W1和W2。基于上述计算方式,可以确定多组RI1,RI2,PMI1以及PMI2(即每组RI取值下,对应一组PMI),在确定多组RI1,RI2,PMI1以及PMI2的取值后,可以基于多组取值,确定使得上述函数值最大的一组值,并将该组值上报给网络设备。
应理解,上述确定RI1,RI2,PMI1以及PMI2可以是由终端设备上的第一解调模块和/或第二解调模块执行的。示例性地,RI1,RI2,PMI1以及PMI2由第一解调模块确定,则第一解调模块向第二解调模块发送RI2和PMI2;RI1,RI2,PMI1以及PMI2由第二解调模块确定,则第二解调模块向第一解调模块发送RI1和PMI1。
需要说明的是,上述函数与频谱效率相关,即通信系统对频谱效应的要求较高,则可以采用上述公式确定RI和PMI;若通信系统对传输容量的要求较高,则可以采用与传输容量相关的公式确定RI和PMI。也就是说,RI和PMI的确定可以根据通信系统的要求,从而采用不同的计算公式确定。本申请对用于计算RI和PMI的方式不作限定。
本申请实施例中,网络设备和终端设备确定天线集合后,网络设备为终端设备配置针对每个天线集合的上报指示,使得接收到上报指示的终端设备可以基于上报指示和CSI-RS上报与第一天线集合和第二天线集合对应的CSI报告,进而使得终端设备上的两个天线集合可以分别处理各自接收到的数据
流,有效地降低终端设备在处理数据流时的计算复杂度。
作为一个可选的实施例,在S301之前,该方法300还包括:终端设备向网络设备发送终端设备的能力信息,该能力信息用于指示终端设备包括两个天线集合。对应地,网络设备接收该能力信息。
应理解,上述能力信息所指示的终端设备包括两个天线集合可以理解为终端设备包括两个解调模块,或者说,终端设备可以支持使用两个天线集合分别对接收到的信号进行解调。其中,解调模块用于对终端设备接收到的数据流进行解调。
上述两个解调模块分别可以称为第一解调模块和第二解调模块,其中,第一解调模块可以用于处理第一天线集合上接收到的数据流,第二解调模块可以用于处理第二天线集合接收到的数据流,且第一天线集合包括的接收天线和第二天线集合包括的接收天线不同。
作为一个可选的实施例,上述第一CSI上报指示和第二CSI上报指示携带在同一报告配置(reporting setting)中;第一CSI报告和第二CSI报告承载于同一PUCCH中。
作为一个可选的实施例,上述第一CSI上报指示和第二CSI上报指示分别携带在不同的报告配置中;第一CSI报告和第二CSI报告分别承载于不同的PUCCH中。
示例性地,网络设备向终端设备发送一个reporting setting,该reporting setting包括两个CSI上报指示,且分别与两个天线集合对应。或者,网络设备向终端设备发送两个reporting setting,且每个reporting setting包括一个CSI上报指示,与一个天线集合对应。其中,关于reporting setting的具体描述可参照现有协议,此处不再赘述。
结合上面的例子,在两个CSI上报指示携带在同一个reporting setting中时,终端设备上报的CSI报告可以承载于一个PUCCH上反馈。在两个CSI上报指示分别携带在两个reporting setting中时,终端设备上报的两个CSI报告可以分别承载于两个PUCCH上反馈,即一个PUCCH上承载一个CSI报告。
作为一个可选的实施例,该方法300还包括:网络设备发送第二指示信息,该第二指示信息用于指示待传输的数据流与第一天线集合和/或第二天线集合之间的对应关系。对应地,终端设备接收该第二指示信息。
可选地,网络设备发送待传输的数据流。对应地,终端设备接收待传输的数据流,并基于第二指示信息确定第一天线集合和/或第二天线集合接收到的数据流。
作为一个可选的实施例,该方法300还包括:网络设备发送第三指示信息,该第三指示信息用于指示待传输的数据流与码字之间的对应关系。对应地,终端设备接收该第三指示信息。
需要说明的是,同一天线集合接收到的待传输的数据流对应的预编码方式相同,但编码方式可能不同,即同一天线集合接收到的数据流可以对应于不同的码字。因此,终端设备还需要进一步确定数据流与码字的对应关系,从而对数据流进行译码。
示例性地,网络设备发送待传输的数据流。对应地,终端设备接收该数据流;终端设备基于第二指示信息确定第一天线集合和第二天线集合接收到的数据流;基于第三指示信息,确定接收到的数据流采用的编码方式;终端设备上的第一解调模块和第二解调模块分别对接收到的数据流采用与编码方式对应的译码方式对接收到的数据流进行译码。
其中,第一解调模块用于处理第一天线集合接收到的数据流,第二解调模块用于处理第二天线集合接收到的数据流。
可选地,在第一天线集合和第二天线集合不可交互的情况下,网络设备和终端设备可以通过协议约定或是预配置的方式,确定第一天线集合和第二天线集合对应的码字。例如,确定第一天线集合接收码字0的数据流,第二天线集合接收码字1的数据流。
示例性地,第一天线集合对应的码字为码字0,第二天线集合对应的码字为码字1。即网络设备向终端设备发送数据流时,需要将码字0的数据流发送至第一天下集合,码字1的数据流发送至第二天线集合。这样,终端设备接收到数据流时,第一天线集合和/或第二天线集合可以基于上述天线集合和码字的对应关系,对接收到的数据流进行译码。
应理解,本申请实施例的方案可以扩展到包括N根接收天线的终端设备(N为大于8的整数)。在终端设备包括N根接收天线时,可以将N根接收天线分为P组(P为大于或等于2的整数),且网络设备可以为终端设备配置P个CSI上报指示,分别对应P个天线集合。终端设备基于网络设备的配
置,上报与P个天线集合对应的P个CSI报告。同样,关于P个CSI上报指示承载的报告配置,CSI报告承载的PUCCH个数,以及P个天线集合的分组方式均可以参照上述方法300的相关描述,此处不再赘述。
还应理解,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
上文中结合图3和图4,详细描述了本申请实施例的方法,下面将结合图5和图6,详细描述本申请实施例的装置。
图5是本申请实施例提供的一种通信装置500。如图5所示,该装置500包括:处理模块510和收发模块520。
在一种可能的实现方式中,该装置500为上述终端设备,或者是终端设备的芯片、芯片系统。
其中,处理模块510用于:确定第一天线集合和第二天线集合,所述第一天线集合包括M根接收天线,所述第二天线集合包括8-M根接收天线,0<M<8,且M为正整数;收发模块520用于:接收第一CSI上报指示和第二CSI上报指示,所述第一CSI上报指示和所述第二CSI上报指示与CSI-RS相关联,所述第一CSI上报指示与所述第一天线集合对应,所述第二CSI上报指示与所述第二天线集合对应;以及,发送第一CSI报告和第二CSI报告,所述第一CSI报告与所述第一天线集合对应,所述第二CSI报告与所述第二天线集合对应,所述第一CSI报告基于所述第一CSI上报指示和所述CSI-RS确定,所述第二CSI报告是基于所述第二CSI上报指示和所述CSI-RS确定。
可选地,收发模块520还用于:发送装置500的能力信息,所述能力信息用于指示该装置包括两个天线集合。
可选地,处理模块510还用于:根据预设规则确定所述第一天线集合和所述第二天线集合,所述预设规则指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线。
可选地,收发模块520还用于:接收第一指示信息,所述第一指示信息用于指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线;处理模块510还用于:基于所述第一指示信息,确定所述第一天线集合和所述第二天线集合。
可选地,所述第一CSI上报指示和所述第二CSI上报指示携带在同一报告配置中;所述第一CSI报告和所述第二CSI报告承载于同一物理上行控制信道PUCCH中。
可选地,所述第一CSI上报指示和所述第二CSI上报指示携带在不同的报告配置中;所述第一CSI报告和所述第二CSI报告承载于不同的PUCCH中。
可选地,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述CSI-RS确定的。
可选地,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述CSI-RS确定的。
可选地,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述第一天线集合和所述第二天线集合之间的交互信息以及所述CSI-RS确定的。
可选地,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述交互信息和所述CSI-RS确定的。
可选地,收发模块520还用于:接收第二指示信息,所述第二指示信息用于指示待传输的数据流与所述第一天线集合和/或所述第二天线集合之间的对应关系。
可选地,收发模块520还用于:接收第三指示信息,所述第三指示信息用于指示所述待传输的数据流与码字之间的对应关系。
在一个可选的例子中,本领域技术人员可以理解,装置500可以具体为上述实施例中的终端设备,该装置500可以用于执行上述方法实施例中与终端设备对应的各个流程和/或步骤,为避免重复,此处不再赘述。
在另一种可能的实现方式中,该装置500为网络设备,或者是网络设备的芯片、芯片系统。
其中,收发模块520用于:发送第一CSI上报指示和第二CSI上报指示,所述第一CSI上报指示和所述第二CSI上报指示与CSI-RS相关联,所述第一CSI上报指示与所述第一天线集合对应,所述第二CSI上报指示与所述第二天线集合对应;以及,接收第一CSI报告和第二CSI报告,所述第一CSI
报告与所述第一天线集合对应,所述第二CSI报告与所述第二天线集合对应,所述第一CSI报告基于所述第一CSI上报指示和所述CSI-RS确定,所述第二CSI报告是基于所述第二CSI上报指示和所述CSI-RS确定。
可选地,收发模块520还用于:接收终端设备的能力信息,所述能力信息用于指示所述终端设备包括两个天线集合。
可选地,处理模块510用于:确定第一天线集合和第二天线集合;收发模块510还用于:发送第一指示信息,所述第一指示信息用于指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线。
可选地,所述第一CSI上报指示和所述第二CSI上报指示携带在同一报告配置中;所述第一CSI报告和所述第二CSI报告承载于同一物理上行控制信道PUCCH中。
可选地,所述第一CSI上报指示和所述第二CSI上报指示携带在不同的报告配置中;所述第一CSI报告和所述第二CSI报告承载于不同的PUCCH中。
可选地,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述CSI-RS确定的。
可选地,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述CSI-RS确定的。
可选地,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述第一天线集合和所述第二天线集合之间的交互信息以及所述CSI-RS确定的。
可选地,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述交互信息和所述CSI-RS确定的。
可选地,收发模块520还用于:发送第二指示信息,所述第二指示信息用于指示待传输的数据流与所述第一天线集合和/或所述第二天线集合之间的对应关系。
可选地,收发模块520还用于:发送第三指示信息,所述第三指示信息用于指示所述待传输的数据流与码字之间的对应关系。
在一个可选的例子中,本领域技术人员可以理解,装置500可以具体为上述方法实施例中的网络设备,该装置500可以用于执行上述方法实施例中与网络设备对应的各个流程和/或步骤,为避免重复,此处不再赘述。
应理解,这里的装置500以功能模块的形式体现。这里的术语“模块”可以指应用特有集成电路(application specific integrated circuit,ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中,本领域技术人员可以理解,装置500可以具体为上述实施例中的在终端设备或网络设备,或者,上述实施例中终端设备或网络设备的功能可以集成在装置500中,装置500可以用于执行上述方法实施例中与终端设备或网络设备对应的各个流程和/或步骤,为避免重复,在此不再赘述。
上述装置500具有实现上述方法中终端设备或网络设备执行的相应步骤的功能;上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。该硬件或软件包括一个或多个与上述功能相对应的模块。例如,上述发送模块510可以为通信接口,例如收发接口。
图6是本申请实施例提供的另一种通信装置600。该装置600包括处理器610、存储器620以及收发器630。其中,处理器610、存储器620和收发器630通过内部连接通路连接,该存储器620用于存储指令,该处理器610用于执行该存储器620存储的指令,使得该装置600可以执行上述方法实施例提供的通信方法。
应理解,上述实施例中装置500的功能可以集成在装置600中,装置600可以用于执行上述方法实施例中与终端设备对应的各个步骤和/或流程,或者该装置600还可以用于执行上述方法实施例中与网络设备对应的各个步骤和/或流程。
可选地,该存储器620可以包括只读存储器和随机存取存储器,并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如,存储器还可以存储设备类型的信息。该处理器610可以用于执行存储器中存储的指令,并且该处理器执行该指令时,该处理器610可以执行上
述方法实施例中与终端设备对应的各个步骤和/或流程,或者该处理器610可以执行上述方法实施例中与网络设备对应的各个步骤和/或流程。
应理解,在本申请实施例中,该处理器610可以是中央处理单元(central processing unit,CPU),该处理器610还可以是其他通用处理器、数字信号处理器(digital signal process,DSP)、ASIC、现场可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。该处理器610可以是微处理器或者该处理器610也可以是任何常规的处理器等。
在实现过程中,上述方法的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器执行存储器中的指令,结合其硬件完成上述方法的步骤。为避免重复,这里不再详细描述。
本申请还提供了一种计算机可读介质,其上存储有计算机程序,该计算机程序被计算机执行时实现上述任一方法实施例中终端设备或网络设备的功能。
本申请还提供了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中终端设备或网络设备的功能。
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申请的范围。
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。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请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申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (29)
- 一种通信方法,其特征在于,应用于终端设备,所述终端设备包括8根接收天线,所述方法包括:确定第一天线集合和第二天线集合,所述第一天线集合包括M根接收天线,所述第二天线集合包括8-M根接收天线,0<M<8,且M为正整数;接收第一信道状态信息CSI上报指示和第二CSI上报指示,所述第一CSI上报指示和所述第二CSI上报指示与信道状态信息参考信号CSI-RS相关联,所述第一CSI上报指示与所述第一天线集合对应,所述第二CSI上报指示与所述第二天线集合对应;发送第一CSI报告和第二CSI报告,所述第一CSI报告与所述第一天线集合对应,所述第二CSI报告与所述第二天线集合对应,所述第一CSI报告基于所述第一CSI上报指示和所述CSI-RS确定,所述第二CSI报告是基于所述第二CSI上报指示和所述CSI-RS确定。
- 根据权利要求1所述的方法,其特征在于,在所述确定第一天线集合和第二天线集合之前,所述方法还包括:发送所述终端设备的能力信息,所述能力信息用于指示所述终端设备包括两个天线集合。
- 根据权利要求1或2所述的方法,其特征在于,所述确定第一天线集合和第二天线集合,包括:根据预设规则确定所述第一天线集合和所述第二天线集合,所述预设规则指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线。
- 根据权利要求1或2所述的方法,其特征在于,所述确定第一天线集合和第二天线集合,包括:接收第一指示信息,所述第一指示信息用于指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线;基于所述第一指示信息,确定所述第一天线集合和所述第二天线集合。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述第一CSI上报指示和所述第二CSI上报指示携带在同一报告配置中;所述第一CSI报告和所述第二CSI报告承载于同一物理上行控制信道PUCCH中。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述第一CSI上报指示和所述第二CSI上报指示携带在不同的报告配置中;所述第一CSI报告和所述第二CSI报告承载于不同的PUCCH中。
- 根据权利要求1至6中任一项所述的方法,其特征在于,所述第一CSI报告包括第一秩指示RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述CSI-RS确定的。
- 根据权利要求7所述的方法,其特征在于,所述第一CSI报告包括第一预编码矩阵指示PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述CSI-RS确定的。
- 根据权利要求1至6中任一项所述的方法,其特征在于,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述第一天线集合和所述第二天线集合之间的交互信息以及所述CSI-RS确定的。
- 根据权利要求9所述的方法,其特征在于,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述交互信息和所述CSI-RS确定的。
- 根据权利要求9或10所述的方法,其特征在于,所述第一RI和所述第二RI的取值范围是协议约定的,或是网络设备为所述终端设备配置的,或是所述终端设备确定的。
- 根据权利要求1至11中任一项所述的方法,其特征在于,所述方法还包括:接收第二指示信息,所述第二指示信息用于指示待传输的数据流与所述第一天线集合和/或所述第二天线集合之间的对应关系。
- 根据权利要求12所述的方法,其特征在于,所述方法还包括:接收第三指示信息,所述第三指示信息用于指示所述待传输的数据流与码字之间的对应关系。
- 一种通信方法,其特征在于,应用于网络设备,所述方法包括:发送第一信道状态信息CSI上报指示和第二CSI上报指示,所述第一CSI上报指示和所述第二CSI上报指示与信道状态信息参考信号CSI-RS相关联,所述第一CSI上报指示与第一天线集合对应,所述第二CSI上报指示与第二天线集合对应;接收第一CSI报告和第二CSI报告,所述第一CSI报告与所述第一天线集合对应,所述第二CSI报告与所述第二天线集合对应,所述第一CSI报告基于所述第一CSI上报指示和所述CSI-RS确定,所述第二CSI报告是基于所述第二CSI上报指示和所述CSI-RS确定。
- 根据权利要求14所述的方法,其特征在于,所述方法还包括:接收终端设备的能力信息,所述能力信息用于指示所述终端设备包括两个天线集合。
- 根据权利要求14或15所述的方法,其特征在于,所述方法还包括:确定所述第一天线集合和所述第二天线集合;发送第一指示信息,所述第一指示信息用于指示所述第一天线集合包括的M根接收天线和/或所述第二天线集合包括的8-M根接收天线。
- 根据权利要求14至16中任一项所述的方法,其特征在于,所述第一CSI上报指示和所述第二CSI上报指示携带在同一报告配置中;所述第一CSI报告和所述第二CSI报告承载于同一物理上行控制信道PUCCH中。
- 根据权利要求14至16中任一项所述的方法,其特征在于,所述第一CSI上报指示和所述第二CSI上报指示携带在不同的报告配置中;所述第一CSI报告和所述第二CSI报告承载于不同的PUCCH中。
- 根据权利要求14至18中任一项所述的方法,其特征在于,所述第一CSI报告包括第一秩指示RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述CSI-RS确定的。
- 根据权利要求19所述的方法,其特征在于,所述第一CSI报告包括第一预编码矩阵指示PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述CSI-RS确定的。
- 根据权利要求14至18中任一项所述的方法,其特征在于,所述第一CSI报告包括第一RI,所述第二CSI报告包括第二RI;所述第一RI和所述第二RI是基于所述第一天线集合和所述第二天线集合之间的交互信息以及所述CSI-RS确定的。
- 根据权利要求21所述的方法,其特征在于,所述第一CSI报告包括第一PMI,所述第二CSI报告包括第二PMI;所述第一PMI和所述第二PMI是基于所述交互信息和所述CSI-RS确定的。
- 根据权利要求21或22所述的方法,其特征在于,所述第一RI和所述第二RI的取值范围是协议约定的,或是所述网络设备为终端设备配置的,或是终端设备确定的。
- 根据权利要求14至23中任一项所述的方法,其特征在于,所述方法还包括:发送第二指示信息,所述第二指示信息用于指示待传输的数据流与所述第一天线集合和/或所述第二天线集合之间的对应关系。
- 根据权利要求24所述的方法,其特征在于,所述方法还包括:发送第三指示信息,所述第三指示信息用于指示所述待传输的数据流与码字之间的对应关系。
- 一种通信装置,其特征在于,包括用于实现如权利要求1至25中任一项所述的方法的模块。
- 一种通信装置,其特征在于,包括处理器和存储器;所述存储器用于存储计算机程序;所述处理器用于调用并执行所述计算机程序,以使得所述装置执行权利要求1至25中任一项所述的方法。
- 一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,其特征在于,所述计算机程序被处理器执行时,实现如权利要求1至25中任一项所述的方法。
- 一种计算机程序产品,其特征在于,包括计算机程序,当所述计算机程序被运行时,实现如权利要求1至25中任一项所述的方法。
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US20180076871A1 (en) * | 2016-09-14 | 2018-03-15 | Samsung Electronics Co., Ltd. | Method and apparatus to enable channel compression in advanced wireless communication systems |
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