WO2024140116A1 - Communication method and apparatus - Google Patents

Communication method and apparatus Download PDF

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Publication number
WO2024140116A1
WO2024140116A1 PCT/CN2023/137479 CN2023137479W WO2024140116A1 WO 2024140116 A1 WO2024140116 A1 WO 2024140116A1 CN 2023137479 W CN2023137479 W CN 2023137479W WO 2024140116 A1 WO2024140116 A1 WO 2024140116A1
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WO
WIPO (PCT)
Prior art keywords
antenna
csi
antenna set
terminal device
indication information
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Application number
PCT/CN2023/137479
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French (fr)
Chinese (zh)
Inventor
李茜
蔡世杰
阮良
刘显达
刘鹍鹏
Original Assignee
华为技术有限公司
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Publication of WO2024140116A1 publication Critical patent/WO2024140116A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present application relates to the field of wireless communication technology, and in particular to a communication method and device.
  • the present application provides a communication method and apparatus for providing a solution for downlink transmission through multiple receiving antennas.
  • a communication method is provided, and the execution subject of the method can be a terminal device or a chip, a chip system or a circuit located in the terminal device.
  • the method can be implemented by the following steps: receiving a CSI-RS from a network device according to a first antenna set and a second antenna set; wherein the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1; determining a CSI set according to the CSI-RS; the CSI set includes a first CSI and a second CSI, wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set; sending the CSI set to the network device; receiving a receive signal from the network device according to the first antenna set and the second antenna set, the receive signal including a first receive signal corresponding to the first
  • the multiple antennas of the terminal device are divided into two antenna sets; the terminal device receives the CSI-RS sent by the network device through the two antenna sets respectively, and determines the CSI for each antenna set respectively. Based on the CSI corresponding to each antenna set, the network device sends a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set to the terminal device.
  • an embodiment of the present application provides a downlink transmission scheme when a terminal device includes multiple antennas to improve system performance; and by dividing the multiple antennas of the terminal device into two antenna sets and performing downlink transmission for the two antenna sets respectively, the downlink transmission process for multiple antennas can be simplified.
  • first indication information is received from a network device, where the first indication information is used to indicate an antenna identifier corresponding to a first antenna set and/or an antenna identifier corresponding to a second antenna set.
  • the network device notifies the terminal device of the division method of the antenna set, so that the terminal device and the network device perform downlink transmission based on the same antenna set division method.
  • the first indication information corresponds to the communication bandwidth of the terminal device.
  • the first indication information sent by the network device corresponds to the entire communication bandwidth of the terminal device, and the antenna set division method indicated by the first indication information is used on the entire communication bandwidth.
  • the network device sends the first indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
  • the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined.
  • the terminal device and the network device determine the division method of the antenna set in a predefined manner. For example, The terminal device and the network device determine the division method of the antenna set based on the protocol agreement.
  • the first received signal and the second received signal satisfy the following first rule, which is predefined; the first rule includes: when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the interference of the second received signal corresponding to the second antenna set to the first received signal corresponding to the first antenna set is less than a first threshold; or, when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set to the second received signal corresponding to the second antenna set is less than the first threshold.
  • the first rank indication information in the first CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; the second rank indication information in the second CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; wherein the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set are determined based on the CSI-RS.
  • the terminal device can accurately determine the first rank indication information and the second rank indication information based on the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set.
  • a method for determining a predefined CQI in the first CSI and/or the second CSI is determined; or, third indication information is received from a network device, the third indication information is used to indicate a method for determining the CQI in the first CSI and/or the second CSI; or, fourth indication information is sent to the network device, the fourth indication information is used to indicate a method for determining the CQI in the first CSI and/or the second CSI.
  • fifth indication information is sent to the network device, and the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set.
  • the fifth indication information corresponds to the communication bandwidth of the terminal device.
  • the fifth indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device, and the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set indicated by the fifth indication information and/or the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set are used in the entire communication bandwidth.
  • the terminal device sends the fifth indication information based on this full-band granularity, which can reduce the amount of indication information and reduce signaling overhead.
  • FIG6 is a schematic diagram of a method for dividing antenna sets of a terminal device provided in an embodiment of the present application.
  • FIG10 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • the long-term evolution (LTE) system has introduced CSI-RS for channel measurement since R10.
  • the terminal device can obtain channel state information (CSI) based on the CSI-RS signal configured by the network device.
  • CSI-RS signal supports more antenna ports.
  • the CSI-RS signals of the current cell and the neighboring cells are tracked to complete the measurement requirements related to the mobility management of the terminal device.
  • the rate matching function at the resource element (RE) level of the data channel is completed by setting a zero-power CSI-RS signal.
  • one or more CSI-RS resource sets can be configured for the terminal device through radio resource control (RRC) signaling.
  • RRC radio resource control
  • Each CSI-RS resource set contains one or more CSI-RS resources, each CSI-RS resource is configured with a maximum of 32 ports, and can be mapped to one or more orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • the transmitting device can process the signal to be transmitted with the help of a precoding matrix matching the channel resources when the channel state information is known, so that the precoded signal to be transmitted is adapted to the channel, thereby improving the quality of the signal received by the receiving device (such as signal to interference plus noise ratio (SINR), etc.), and reducing the complexity of the receiving device to eliminate the influence between channels.
  • the transmitting device can send multiple parallel data streams occupying the same time-frequency resources to a receiving device, that is, single-user multiple-input multiple-output (SU-MIMO), and the transmitting device and multiple receiving devices can transmit data on the same time-frequency resources, that is, multiple-user multiple-input multiple-output (MU-MIMO).
  • SU-MIMO single-user multiple-input multiple-output
  • MU-MIMO multiple-user multiple-input multiple-output
  • the technical solution provided in this application can be applied to various communication systems, for example, it can be the Internet of Things (IoT), narrowband Internet of Things (NB-IoT), long term evolution (LTE), or a 5G communication system, or a hybrid architecture of LTE and 5G, or a 5G NR system, and new communication systems that will emerge in the future development of communication.
  • the 5G communication system described in this application may include at least one of a non-standalone (NSA) 5G communication system and a standalone (SA) 5G communication system.
  • the communication system may also be a public land mobile network (PLMN) network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, or other networks.
  • PLMN public land mobile network
  • D2D device-to-device
  • M2M machine-to-machine
  • a communication system is provided for an embodiment of the present application, and the communication system includes a network device and six terminal devices, taking UE1 to UE6 as an example.
  • the network device can send signals to UE1 to UE6 on the downlink, respectively, and UE1 to UE6 can receive downlink signals sent by the network device.
  • UE4 to UE6 can also form a sub-communication system.
  • the network device can send downlink signals to UE1, UE2, UE3, and UE5 on the downlink.
  • UE5 can send signals to UE4 and UE6 on the sidelink (SL) based on D2D technology.
  • FIG. 1 is only a schematic diagram, and the present application does not specifically limit the type of communication system, and the number and type of devices included in the communication system.
  • the terminal device involved in the embodiments of the present application is an entity on the user side for receiving or transmitting signals.
  • the terminal device can be a device that provides voice and data connectivity to users, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • the terminal device can also be other processing devices connected to a wireless modem.
  • the terminal device can communicate with one or more core networks through a radio access network (RAN).
  • RAN radio access network
  • the terminal device can also be called a wireless terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment, etc.
  • the terminal device may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and data with a wireless access network.
  • the terminal device may also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and other devices.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • Common terminal devices include, for example: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices, such as smart watches, smart bracelets, pedometers, etc., but the embodiments of the present application are not limited thereto.
  • the terminal devices involved in the embodiments of the present application may also be terminal devices that appear in the future evolving PLMN, etc., and the embodiments of the present application are not limited thereto.
  • the terminal device may also include sensors such as smart printers, train detectors, gas stations, etc., and its main functions include collecting data (partial terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • sensors such as smart printers, train detectors, gas stations, etc.
  • main functions include collecting data (partial terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • the network device involved in the embodiments of the present application is an entity on the network side for transmitting or receiving signals.
  • the network device in the embodiments of the present application may be a device in a wireless network, such as a RAN node that connects a terminal to a wireless network.
  • the network device may be an evolutionary Node B (eNB or e-NodeB) in LTE, or a new radio controller (NR controller), a gNode B (gNB) in a 5G system, a centralized unit (CU), a new wireless base station, a radio frequency remote module, a micro base station, a relay, a distributed unit (DU), a home base station, a transmission reception point (TRP) or a transmission point (TP) or any other wireless access device, but the embodiments of the present application are not limited thereto.
  • the network device may cover one or more cells.
  • the structure of the network device in the embodiment of the present application can be shown in FIG2.
  • the wireless access network device can be divided into a CU and at least one DU.
  • the CU can be used to manage or control at least one DU, which can also be referred to as a CU connected to at least one DU.
  • This structure can separate the protocol layer of the wireless access network device in the communication system, wherein some of the protocol layers are placed in the CU for centralized control, and the remaining part or all of the protocol layer functions are distributed in the DU, and the DU is centrally controlled by the CU.
  • the communication between the network device and the UE can be shown in FIG4 , and the network device and the UE can exchange RRC signaling through the RRC module.
  • the network device and the UE can exchange media access control control element (MAC CE) signaling through the MAC module.
  • the network device and the UE can exchange uplink/downlink control signaling such as physical uplink control channel (PUCCH)/physical downlink control channel (PDCCH), uplink/downlink data signaling such as physical uplink shared channel (PUSCH)/physical downlink shared channel (PDSCH) through PHY.
  • PUCCH physical uplink control channel
  • PDCCH physical downlink control channel
  • PUSCH physical uplink shared channel
  • PDSCH physical downlink shared channel
  • 5G communication systems have higher requirements for system capacity, spectrum efficiency, etc. Improving the transmission rate of the downlink transmission link is a key issue for 5G communication systems.
  • the terminal device can receive the downlink data through multiple antennas.
  • an 8R receiver can be used in the downlink transmission process to effectively improve the spectrum efficiency.
  • the 8R receiver indicates a receiver device containing 8 receiving antennas.
  • the 8R receiver can significantly improve the downlink throughput of a single user in a cell, and can also increase the coverage of users at the edge of the cell.
  • the 8R receiver is also one of the main ways to enable 256QAM and higher-order modulation schemes within the actual operable signal-to-interference ratio range. How to perform downlink transmission through multiple receiving antennas has become a technical problem that needs to be solved urgently.
  • the embodiment of the present application provides a communication method and device for implementing downlink signal transmission for a terminal device including multiple antennas.
  • the method and the device are based on the same inventive concept. Since the method and the device solve the problem in a similar way, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.
  • At least one of the following or similar expressions refers to any combination of these items, including any combination of single items or plural items, for example, at least one of a, b or c, or at least one of a, b and c, which can mean one of the following situations: a exists alone, b exists alone, c exists alone, a and b exist at the same time, a and c exist at the same time, b and c exist at the same time, a, b and c exist at the same time, and a, b and c exist at the same time, where a, b and c can be single or plural.
  • used for indication may include being used for direct indication and being used for indirect indication.
  • indication information when describing that a certain indication information is used for indicating information I, it may include that the indication information directly indicates I or indirectly indicates I, but it does not mean that the indication information must carry I.
  • the information indicated by the indication information is called the information to be indicated.
  • the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated.
  • the information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association 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 the other parts of the information to be indicated are known or agreed in advance.
  • the indication of specific information can also be achieved with the help of the arrangement order of each piece of information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent.
  • the common parts of each piece of information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.
  • the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof.
  • the specific details of the various indication methods can refer to the prior art and will not be repeated herein.
  • the desired indication method can be selected according to specific needs.
  • the embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.
  • a communication method provided in an embodiment of the present application can be applied to the communication system shown in FIG1.
  • the embodiment is described from the perspectives of both the terminal device and the network device. It should be understood that this does not constitute a limitation on the present application.
  • the present application has improvements on either side of the terminal device and the network device. Specifically, the method can be applied to the terminal device and the network device, or can also be applied to the chip or chipset/chip system of the terminal device and the network device. The following is an example of application to the terminal device and the network device.
  • the communication method provided in the embodiment of the present application may specifically include:
  • Step 501 The network device sends a CSI-RS to the terminal device.
  • CSI-RS is a reference signal that characterizes the channel state of a downlink channel.
  • the network device sends the CSI-RS to the terminal device, and the terminal device can obtain the channel state information of the downlink channel based on the CSI-RS signal configured by the network device.
  • Step 502 The terminal device receives a CSI-RS from a network device according to a first antenna set and a second antenna set;
  • the terminal device of the embodiment of the present application corresponds to M antenna identifiers, where M is an integer greater than 1.
  • the M antenna identifiers are divided into two antenna sets; a first antenna set and a second antenna set, respectively.
  • the first antenna set corresponds to a part of the M antenna identifiers
  • the second antenna set corresponds to another part of the M antenna identifiers.
  • the number of antenna identifiers corresponding to the first antenna set is the same as or different from the number of antenna identifiers corresponding to the second antenna set.
  • the antenna identifier includes an SRS antenna port number and/or an antenna number, wherein the antenna number may be a number of a physical antenna of the terminal device.
  • the terminal device determines a first group of channel state information reference signal CSI-RS ports and a second group of channel state information reference signal CSI-RS ports, wherein the first group of CSI-RS ports corresponds to the first antenna set and/or the second antenna set, and the second group of CSI-RS ports corresponds to the first antenna set and the second antenna set.
  • the CSI set determined by the terminal device includes a first CSI and a second CSI; wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set.
  • Step 504 The terminal device sends a CSI set to the network device.
  • a terminal device When a terminal device sends a CSI set to a network device, it can send the CSI set in a variety of different ways:
  • the terminal device sends the first CSI through the first antenna set and sends the second CSI through the second antenna set; or,
  • the terminal sends the first CSI and the second CSI through the first antenna set or the second antenna set; or,
  • the terminal sends the first CSI and the second CSI through both the first antenna set and the second antenna set.
  • the multiple antennas of the terminal device are divided into two antenna sets; the terminal device receives the CSI-RS sent by the network device through the two antenna sets respectively, and determines the CSI for each antenna set respectively. Based on the CSI corresponding to each antenna set, the network device sends a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set to the terminal device. Based on this, an embodiment of the present application provides a downlink transmission scheme when a terminal device includes multiple antennas, which can simplify the downlink transmission process for multiple antennas and further improve system performance.
  • the terminal device and the network device in the embodiment of the present application may determine the division method of the antenna set based on the following method:
  • the first indication information sent by the network device to the terminal device may carry the antenna identifier corresponding to the first antenna set; exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8.
  • the first indication information carries the antenna number labels corresponding to the first antenna set, including 1, 2, 3, and 4.
  • the terminal device can determine that the antenna number labels corresponding to the first antenna set include 1, 2, 3, and 4, and the antenna number labels of all antenna number labels corresponding to the terminal device, except the antenna number label corresponding to the first antenna set, are the antenna number labels corresponding to the second antenna set. Therefore, the terminal device can determine the antenna number label corresponding to the second antenna set according to the first indication information.
  • the first indication information sent by the network device to the terminal device may carry the antenna identifier corresponding to the first antenna set and the antenna identifier corresponding to the second antenna set.
  • the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8.
  • the first indication information carries the antenna number labels 1, 2, 3, and 4 corresponding to the first antenna set, and the antenna number labels 5, 6, 7, and 8 corresponding to the second antenna set; the terminal device can directly determine the antenna number labels corresponding to the first antenna set and the antenna number labels corresponding to the second antenna set from the first indication information.
  • the terminal device may send the second indication information to the network device before receiving the CSI-RS sent by the network device, or the terminal device may determine the division method of the antenna set after receiving the CSI-RS sent by the network device, and send the second indication information to the network device, thereby notifying the network device of the division method of the antenna set.
  • the first SRS corresponds to the first antenna set
  • the second SRS corresponds to the second antenna set
  • the terminal device may send the first SRS to the network device via the first antenna set, and send the second SRS to the network device via the second antenna set.
  • the communication system of the embodiment of the present application is a TDD system
  • the network device may also receive the received The first SRS and the second SRS are measured to obtain the downlink channel information between the network device and the terminal device.
  • the network device measures the received first SRS based on channel reciprocity to obtain the downlink channel information between the network device and the first antenna set of the terminal device; the network device measures the received second SRS based on channel reciprocity to obtain the downlink channel information between the network device and the second antenna set of the terminal device.
  • the terminal device in the embodiment of the present application determines the CSI set.
  • the first CSI includes but is not limited to the first CQI and the first rank indication information
  • the second CSI includes but is not limited to the second CQI and the second rank indication information.
  • the method for determining the CQI in the first CSI and/or the second CSI may be predefined by way of protocol agreement.
  • the terminal device and the network device may obtain a unified method for determining the CQI in the first CSI and/or the second CSI based on the protocol agreement.
  • the network device determines a method for determining the CQI in the first CSI and/or the second CSI, and notifies the terminal device of the method for determining the CQI in the first CSI and/or the second CSI.
  • Method 3 The terminal device sends fourth indication information to the network device, where the fourth indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI.
  • the fourth indication information carries the method for determining the CQI in the first CSI and the method for determining the CQI in the second CSI; if the method for determining the CQI in the first CSI is the same as the method for determining the CQI in the second CSI, the fourth indication information may carry the method for determining the CQI in either CSI.
  • the terminal device determines the first CQI in the first CSI according to the method for determining the CQI in the first CSI; the terminal device determines the second CQI in the second CSI according to the method for determining the CQI in the second CSI.
  • the following describes a method for determining the rank indication information in the CSI. Specifically, the following describes a method for a terminal device to determine the first rank indication information in the first CSI and the second rank indication information in the second CSI.
  • the first rank indication information in the first CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set;
  • the second rank indication information in the second CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; wherein the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set are determined based on CSI-RS.
  • the terminal device may determine the first rank indication information in the first CSI and the second rank indication information in the second CSI based on the following process:
  • A1 The terminal device measures the CSI-RS received through the first antenna set to obtain a channel measurement result corresponding to the first antenna set; and the terminal device measures the CSI-RS received through the second antenna set to obtain a channel measurement result corresponding to the second antenna set.
  • the channel state matrix corresponding to the first antenna set is determined to be H1
  • the channel state matrix corresponding to the second antenna set is determined to be H2
  • the channel state matrix H of the downlink channel between the network device and the terminal device is constructed.
  • An optional implementation is that if, based on the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set, it is determined that the channel quality corresponding to the first antenna set is better than the channel quality corresponding to the second antenna set, then when constructing the channel state matrix H of the downlink channel between the network device and the terminal device, the channel state matrix corresponding to the first antenna set is sorted H1 in the front.
  • the following describes a process of determining the first rank indication information in the first CSI and the second rank indication information in the second CSI based on the channel state matrix:
  • the terminal device selects an equivalent channel condition number that is the same as the total number of transmission streams from multiple equivalent channel condition numbers in a descending order based on the total number of transmission streams, and determines the first rank indication information in the first CSI and the second rank indication information in the second CSI based on the antenna identifier corresponding to the selected equivalent channel condition number.
  • the terminal device includes 8 antennas
  • the network device includes 64 antennas
  • the first antenna set corresponding to the terminal device includes antenna numbers 1, 2, 3, and 4
  • the second antenna set corresponding to the terminal device includes antenna numbers 5, 6, 7, and 8.
  • the channel quality between the network device and the first antenna set is better than the channel quality between the network device and the second antenna set.
  • the matrix H H obtained by conjugate transposing the channel state matrix H between the network device and the terminal device, performing QR decomposition on the R matrix, and conjugate transposing the R matrix, the obtained matrix RH can be shown in Figure 8, where the elements on the diagonal of the matrix RH correspond to an antenna of the terminal device respectively; wherein the element 9 in the first column on the diagonal corresponds to the antenna number 1 of the terminal device, and the element 8 in the second column on the diagonal corresponds to the antenna number of the terminal device.
  • the element 4 in the third column on the diagonal corresponds to the number of antennas of the terminal device number 3
  • the element 1 in the fourth column on the diagonal corresponds to the number of antennas of the terminal device number 4
  • the element 7 in the fifth column on the diagonal corresponds to the number of antennas of the terminal device number 5
  • the element 6 in the sixth column on the diagonal corresponds to the number of antennas of the terminal device number 6
  • the element 5 in the seventh column on the diagonal corresponds to the number of antennas of the terminal device number 7
  • the element 2 in the eighth column on the diagonal corresponds to the number of antennas of the terminal device number 8.
  • the terminal device determines the first rank indication information in the first CSI and the second rank indication information in the second CSI according to the total number of transmission streams N and the elements on the diagonal of the lower triangular matrix RH . Assuming that the total number of transmission streams N is 5, 5 elements with larger modulus values are selected from the elements on the diagonal of the lower triangular matrix RH . For the lower triangular matrix RH shown in FIG8 , the 5 elements with larger modulus values are 9, 8, 7, 6, and 5, respectively. Among the 5 larger elements, 9 and 8 correspond to the first antenna set, and 7, 6, and 5 correspond to the second antenna set. Therefore, it is determined that the first rank indication information in the first CSI corresponding to the first antenna set is 2, and the first rank indication information in the first CSI corresponding to the first antenna set is 3.
  • the CSI that the terminal device feeds back to the network device includes CQI and rank indication information; wherein, the first rank indication information and the first CQI in the first CSI, and the second rank indication information and the second CQI in the second CSI can be determined based on the above method.
  • the CSI that the terminal device feeds back to the network device includes CQI, rank indication information and precoding matrix indicator (PMI); wherein, the first rank indication information and the first CQI in the first CSI, and the second rank indication information and the second CQI in the second CSI can be determined based on the above method; the method for determining the PMI in the first CSI and the PMI in the second CSI is specifically introduced below.
  • FDD frequency division duplexing
  • the terminal device selects an equivalent channel condition number that is the same as the total number of transmission streams from multiple equivalent channel condition numbers in a descending order according to the total number of transmission streams, and determines the PMI corresponding to the first antenna set and the PMI corresponding to the second antenna set from the unitary array Q according to the position of the selected equivalent channel condition number in the lower triangular matrix RH .
  • the terminal device uses the first column vector and the second column vector of the unitary array Q to form the PMI corresponding to the first antenna set, and when determining the PMI corresponding to the second antenna set, uses the fifth column vector, the sixth column vector, and the seventh column vector of the unitary array Q to form the PMI corresponding to the second antenna set.
  • the terminal device of the embodiment of the present application may also adopt a joint determination method to determine the first rank indication information and PMI corresponding to the first antenna set, and the second rank indication information and PMI corresponding to the second antenna set.
  • the terminal device may jointly determine the first rank indication information and the PMI corresponding to the first antenna set, and the second rank indication information and the PMI corresponding to the second antenna set based on the following formula:
  • RI 1 is the first rank indication information corresponding to the first antenna set
  • RI 2 is the second rank indication information corresponding to the second antenna set
  • H 1 is the channel state matrix corresponding to the first antenna set
  • H 2 is the channel state matrix corresponding to the second antenna set
  • ⁇ is the coefficient representing interference
  • ⁇ 2 is the noise power.
  • the terminal device After obtaining the PMI, the first rank indication information and the first CQI corresponding to the first antenna set based on the above method, the terminal device obtains the first CSI; after obtaining the PMI, the second rank indication information and the second CQI corresponding to the second antenna set based on the above method, the terminal device obtains the second CSI.
  • a CSI set is generated according to the first CSI and the second CSI.
  • the terminal device After determining the first rank indication information and the first CQI, the terminal device obtains the first CSI, and after determining the second rank indication information and the second CQI, obtains the second CSI.
  • a CSI set is generated according to the first CSI and the second CSI.
  • the terminal device After the terminal device generates the CSI set, it sends the CSI set to the network device.
  • the terminal device can send the CSI set in a variety of different ways:
  • the terminal device sends the first CSI through the first antenna set and sends the second CSI through the second antenna set; or,
  • the terminal sends the first CSI and the second CSI through the first antenna set or the second antenna set; or,
  • the terminal sends the first CSI and the second CSI through both the first antenna set and the second antenna set.
  • the network device After receiving the CSI set sent by the terminal device, the network device determines a first precoding matrix corresponding to the first antenna set and a second precoding matrix corresponding to the second antenna set according to the CSI set.
  • the CSI set sent by the terminal device includes the first antenna set pair If the network device obtains the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set from the CSI set, the network device obtains the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set from the CSI set.
  • the network device determines a first precoding matrix corresponding to a first antenna set and a second precoding matrix corresponding to a second antenna set according to rank indication information in a CSI set sent by a terminal device.
  • the network device may determine the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set based on the predefined precoding matrix determination method and the rank indication information in the CSI set;
  • the predefined precoding matrix determination method may be based on a protocol agreed method, and the network device may determine the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set based on the protocol agreed method and the rank indication information in the CSI set.
  • the network device may determine the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set based on the fifth indication information sent by the terminal device and the rank indication information in the CSI set.
  • An optional implementation is that if the channel quality of the downlink channel between the network device and the first antenna set of the terminal device is determined to be better than the channel quality of the downlink channel between the network device and the second antenna set of the terminal device by measuring the first SRS and the second SRS sent by the terminal device, then when constructing the channel state matrix H of the downlink channel between the network device and the terminal device, the channel state matrix corresponding to the first antenna set is sorted H1 in the front.
  • the channel quality between the antenna set of the network device and the terminal device can be represented by the modulation order of the codeword corresponding to the antenna set.
  • the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, it means that the channel quality of the downlink channel between the network device and the first antenna set of the terminal device is better than the channel quality of the downlink channel between the network device and the second antenna set of the terminal device; if the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, it means that the channel quality of the downlink channel between the network device and the second antenna set of the terminal device is better than the channel quality of the downlink channel between the network device and the first antenna set of the terminal device.
  • the network device includes 64 antennas, the terminal device includes 8 antennas, the first antenna set of the terminal device includes antenna numbers 1, 2, 3, and 4, and the second antenna set of the terminal device includes antenna numbers 5, 6, 7, and 8.
  • the network device measures the first SRS, and the channel state matrix H1 corresponding to the first antenna set obtained is a 4*64 matrix; the network device measures the second SRS, and the channel state matrix H2 corresponding to the second antenna set obtained is a 4*64 matrix.
  • the channel state matrix H of the downlink channel between the constructed network device and the terminal device is:
  • the network device may determine the precoding matrix corresponding to the first antenna set as V1 and the precoding matrix corresponding to the second antenna set as V2 based on the determined channel state matrix.
  • the R matrix and Q matrix are decomposed; the R matrix is an upper triangular matrix and the Q matrix is a unitary matrix.
  • conjugate transpose is performed on the R matrix to obtain a lower triangular matrix RH .
  • the modulus of the elements on the diagonal of the lower triangular matrix RH is called the equivalent channel condition number, and the size of the modulus of the elements on the diagonal of the lower triangular matrix RH is used to characterize the channel quality of each antenna of the terminal device.
  • the network device selects corresponding column vectors from the unitary array Q to form a precoding matrix V 1 corresponding to the first antenna set according to the positions of the selected equivalent condition numbers in the lower triangular matrix RH ; illustratively, as shown in the lower triangular matrix RH of FIG8 , the larger two equivalent channel condition numbers from the equivalent channel condition numbers corresponding to the first antenna set are located in the first column and the second column, respectively, and the network device forms the first precoding matrix V 1 corresponding to the first antenna set with the first column vector and the second column vector of the unitary array Q.
  • the terminal device sends fifth indication information to the network device, and the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set.
  • the fifth indication information corresponds to the communication bandwidth of the terminal device.
  • the antenna identifiers corresponding to the first rank indication information in the first CSI in the fifth indication information are antenna numbers 1 and 2
  • the antenna identifiers corresponding to the first rank indication information in the second CSI are antenna numbers 5, 6, and 7.
  • the network device extracts the first column vector and the second column vector from the unitary array Q to form a first precoding matrix
  • the network device extracts the fifth column vector, the sixth column vector, and the seventh column vector from the unitary array Q to form a second precoding matrix.
  • the network device After determining the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set, the network device sends a receive signal to the terminal device based on the first precoding matrix and the second precoding matrix.
  • the network device when the network device sends a received signal to the terminal device, it is necessary to determine the relationship between the network device and the first antenna set.
  • the channel matrix and the first precoding matrix between the network device and the second antenna set, the channel matrix and the second precoding matrix between the network device and the second antenna set are used to encode the received signal.
  • the network device sends a first receiving signal S1 and a second receiving signal S2 to the terminal device; it is assumed that the channel state matrix between the network device and the first antenna set is H1 , and the channel state matrix between the network device and the second antenna set is H2 ; the precoding matrix corresponding to the first antenna set is V1 , and the precoding matrix corresponding to the second antenna set is V2 .
  • the terminal device receives the receiving signals sent by the network device through the first antenna set G1 and the second antenna set G2 , respectively.
  • the first received signal and the second received signal satisfy the following first rule, where the first rule is predefined;
  • the first rule includes:
  • an embodiment of the present application provides a communication device, the structure of which may be as shown in FIG. 10 , including a communication unit 1001 and a processing unit 1002 .
  • the communication device can be specifically used to implement the method executed by the terminal device.
  • the device can be the terminal device itself, or a chip or chipset in the terminal device or a part of the chip used to execute the function of the related method.
  • the communication unit 1001 is used to receive the CSI-RS from the network device according to the first antenna set and the second antenna set; wherein the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1;
  • the processing unit 1002 is used to determine the CSI set according to the CSI-RS;
  • the CSI set includes the first CSI and the second CSI, wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set;
  • the communication unit 1001 is used to send the CSI set to the network device; and receive the received signal from the network
  • the communication unit 1001 may also be used to: receive first indication information from a network device, where the first indication information is used to indicate an antenna identifier corresponding to the first antenna set and/or an antenna identifier corresponding to the second antenna set.
  • the processing unit 1002 may also be configured to: determine a predefined method for determining a CQI in the first CSI and/or the second CSI; or
  • each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module.
  • the above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. It is understood that the functions or implementations of each module in the embodiments of the present application may further refer to the relevant description of the method embodiment.
  • the processor 1201 may be a CPU, or a digital processing unit, etc.
  • the communication interface 1202 may be a transceiver, or an interface circuit such as a transceiver circuit, or a transceiver chip, etc.
  • the device further includes: a memory 1203 for storing programs executed by the processor 1201.
  • the memory 1203 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM).
  • the memory 1203 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
  • the processor 1201 is used to execute the program code stored in the memory 1203, specifically to execute the actions of the processing unit 1002, which will not be described in detail in this application.
  • the communication interface 1202 is specifically used to execute the actions of the communication unit 1001, which will not be described in detail in this application.
  • connection medium between the communication interface 1202, the processor 1201 and the memory 1203 is not limited in the embodiment of the present application.
  • the memory 1203, the processor 1201 and the communication interface 1202 are connected by a bus 1204.
  • the bus is represented by a bold line in FIG. 12.
  • the connection mode between other components is only for schematic illustration and is not limited thereto.
  • the bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in FIG. 12, but it does not mean that there is only one bus or one type of bus.
  • the processor 1301 is used to execute the program code stored in the memory 1303, specifically to execute the actions of the processing unit 1102, which will not be described in detail in this application.
  • the communication interface 1302 is specifically used to execute the actions of the communication unit 1101, which will not be described in detail in this application.
  • connection medium between the communication interface 1302, the processor 1301 and the memory 1303 is not limited in the embodiment of the present application.
  • the memory 1303, the processor 1301 and the communication interface 1302 are connected via a bus 1304.
  • the bus is represented by a bold line in FIG. 13 .
  • the connection mode between other components is only for schematic illustration and is not intended to be limiting.
  • the bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in FIG. 13 , but it does not mean that there is only one bus or one type of bus.
  • the embodiment of the present application also provides a computer readable storage medium for storing computer software required to execute the above processor.
  • the software contains instructions for executing the program required by the above-mentioned processor.
  • the embodiment of the present application also provides a computer program product, comprising a computer program for executing the above-mentioned processor.
  • the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.
  • a computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
  • These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.

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Abstract

The present application provides a communication method and apparatus, for use in providing a solution for performing downlink transmission by means of a plurality of receiving antennas. The method comprises: receiving a CSI-RS from a network device according to a first antenna set and a second antenna set, the terminal device corresponding to M antenna identifiers; determining a CSI set according to the CSI-RS, the CSI set comprising first CSI and second CSI, the first CSI being CSI corresponding to the first antenna set, and the second CSI being CSI corresponding to the second antenna set; sending the CSI set to the network device; and receiving received signals from the network device according to the first antenna set and the second antenna set, the received signals comprising a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set. Thus, a downlink transmission solution when a terminal device comprises a plurality of antennas is provided, and the system performance is improved.

Description

一种通信方法及装置A communication method and device
相关申请的交叉引用CROSS-REFERENCE TO RELATED APPLICATIONS
本申请要求在2022年12月29日提交中国专利局、申请号为202211714056.4、申请名称为“一种通信方法及装置”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。This application claims priority to the Chinese patent application filed with the China Patent Office on December 29, 2022, with application number 202211714056.4 and application name “A Communication Method and Device”, the entire contents of which are incorporated by reference in this application.
技术领域Technical Field
本申请涉及无线通信技术领域，尤其涉及一种通信方法及装置。The present application relates to the field of wireless communication technology, and in particular to a communication method and device.
背景技术Background technique
第5代(5 generation，5G)通信***对***容量、频谱效率等方面有了更高的要求。在5G通信***中，大规模多输入多输出(multiple input multiple output，MIMO)技术对***的频谱效率起到至关重要的作用。基于通信市场需求，下行传输链路的峰值传输需要提高到1.6Gbps。而目前在下行传输过程中使用的接收机已无法满足需求。The fifth generation (5G) communication system has higher requirements for system capacity and spectrum efficiency. In 5G communication systems, large-scale multiple input multiple output (MIMO) technology plays a vital role in the spectrum efficiency of the system. Based on the communication market demand, the peak transmission of the downlink transmission link needs to be increased to 1.6Gbps. However, the receivers currently used in the downlink transmission process can no longer meet the requirements.
为了满足新的通信市场需求，可以在下行传输过程中使用包含多根接收天线的接收机设备。但是，如何通过多根接收天线进行下行传输成为亟待解决的技术问题。In order to meet the new communication market demand, a receiver device including multiple receiving antennas can be used in the downlink transmission process. However, how to perform downlink transmission through multiple receiving antennas has become a technical problem that needs to be solved urgently.
发明内容Summary of the invention
本申请提供一种通信方法及装置，用于提供一种通过多根接收天线进行下行传输的方案。The present application provides a communication method and apparatus for providing a solution for downlink transmission through multiple receiving antennas.
第一方面，提供一种通信方法，该方法的执行主体可以是终端设备或者位于终端设备中的芯片、芯片***或者电路，该方法可以通过以下步骤实现：根据第一天线集合和第二天线集合接收来自网络设备的CSI-RS；其中，终端设备对应M个天线标识，第一天线集合对应M个天线标识中的一部分，第二天线集合对应M个天线标识中的另一部分，M为大于1的整数；根据CSI-RS，确定CSI集合；CSI集合包括第一CSI和第二CSI，其中，第一CSI为第一天线集合对应的CSI，第二CSI为第二天线集合对应的CSI；向网络设备发送CSI集合；根据第一天线集合和第二天线集合接收来自网络设备的接收信号，接收信号包括第一天线集合对应的第一接收信号和第二天线集合对应的第二接收信号。In a first aspect, a communication method is provided, and the execution subject of the method can be a terminal device or a chip, a chip system or a circuit located in the terminal device. The method can be implemented by the following steps: receiving a CSI-RS from a network device according to a first antenna set and a second antenna set; wherein the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1; determining a CSI set according to the CSI-RS; the CSI set includes a first CSI and a second CSI, wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set; sending the CSI set to the network device; receiving a receive signal from the network device according to the first antenna set and the second antenna set, the receive signal including a first receive signal corresponding to the first antenna set and a second receive signal corresponding to the second antenna set.
本申请实施例中，在终端设备包括多根天线时，将终端设备的多根天线划分为两个天线集合；终端设备通过两个天线集合分别接收网络设备发送的CSI-RS，并针对每个天线集合分别确定CSI。网络设备基于每个天线集合对应的CSI，向终端设备发送第一天线集合对应的第一接收信号，以及第二天线集合对应的第二接收信号。基于此，本申请实施例提供一种在终端设备包括多根天线时的下行传输方案，提高***性能；并且通过将终端设备的多根天线划分为两个天线集合，针对两个天线集合分别进行下行传输，可以简化针对多根天线的下行传输流程。In an embodiment of the present application, when a terminal device includes multiple antennas, the multiple antennas of the terminal device are divided into two antenna sets; the terminal device receives the CSI-RS sent by the network device through the two antenna sets respectively, and determines the CSI for each antenna set respectively. Based on the CSI corresponding to each antenna set, the network device sends a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set to the terminal device. Based on this, an embodiment of the present application provides a downlink transmission scheme when a terminal device includes multiple antennas to improve system performance; and by dividing the multiple antennas of the terminal device into two antenna sets and performing downlink transmission for the two antenna sets respectively, the downlink transmission process for multiple antennas can be simplified.
一种可能的设计中，天线标识包括SRS天线端口号、和/或天线个数标号。In one possible design, the antenna identifier includes the SRS antenna port number and/or the antenna number.
一种可能的设计中，接收来自网络设备的第一指示信息，第一指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。通过上述设计，网络设备将天线集合的划分方式通知终端设备，从而终端设备和网络设备基于相同的天线集合划分方式进行下行传输。In one possible design, first indication information is received from a network device, where the first indication information is used to indicate an antenna identifier corresponding to a first antenna set and/or an antenna identifier corresponding to a second antenna set. Through the above design, the network device notifies the terminal device of the division method of the antenna set, so that the terminal device and the network device perform downlink transmission based on the same antenna set division method.
一种可能的设计中，第一指示信息对应于终端设备的通信带宽。通过上述设计，网络设备发送的第一指示信息对应于终端设备的整个通信带宽，在整个通信带宽上均采用第一指示信息所指示的天线集合划分方式，网络设备基于该种全带粒度的方式发送第一指示信息，可以减少指示信息量，降低信令开销。In one possible design, the first indication information corresponds to the communication bandwidth of the terminal device. Through the above design, the first indication information sent by the network device corresponds to the entire communication bandwidth of the terminal device, and the antenna set division method indicated by the first indication information is used on the entire communication bandwidth. The network device sends the first indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
一种可能的设计中，终端设备向网络设备发送第二指示信息，第二指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。通过上述设计，终端设备将天线集合的划分方式通知网络设备，从而终端设备和网络设备基于相同的天线集合划分方式进行下行传输。In one possible design, the terminal device sends a second indication information to the network device, and the second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set. Through the above design, the terminal device notifies the network device of the division method of the antenna set, so that the terminal device and the network device perform downlink transmission based on the same antenna set division method.
一种可能的设计中，第二指示信息对应于终端设备的通信带宽。通过上述设计，终端设备发送的第二指示信息对应于终端设备的整个通信带宽。在整个通信带宽上均采用第二指示信息所指示的天线集合划分方式。终端设备基于该种全带粒度的方式发送第二指示信息，可以减少指示信息量，降低信令开销。In one possible design, the second indication information corresponds to the communication bandwidth of the terminal device. Through the above design, the second indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device. The antenna set division method indicated by the second indication information is adopted on the entire communication bandwidth. The terminal device sends the second indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
一种可能的设计中，第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识是预先定义的。通过上述设计，终端设备和网络设备通过预先定义的方式确定天线集合的划分方式，示例性的， 终端设备和网络设备基于协议约定的方式确定天线集合的划分方式。In one possible design, the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined. Through the above design, the terminal device and the network device determine the division method of the antenna set in a predefined manner. For example, The terminal device and the network device determine the division method of the antenna set based on the protocol agreement.
一种可能的设计中，第一接收信号和第二接收信号满足如下第一规则，第一规则是预先定义的；第一规则包括：在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，第二天线集合对应的第二接收信号对第一天线集合对应的第一接收信号的干扰小于第一阈值；或，在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，第一天线集合对应的第一接收信号对第二天线集合对应的第二接收信号的干扰小于第一阈值。通过上述设计，在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，表示网络设备与第一天线集合之间的信道质量优于网络设备与第二天线集合之间的信道质量，此时在网络设备向终端发送接收信号时，第二接收信号对第一接收信号的干扰较小；在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，表示网络设备与第二天线集合之间的信道质量优于网络设备与第一天线集合之间的信道质量，此时在网络设备向终端发送接收信号时，第一接收信号对第二接收信号的干扰较小。In one possible design, the first received signal and the second received signal satisfy the following first rule, which is predefined; the first rule includes: when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the interference of the second received signal corresponding to the second antenna set to the first received signal corresponding to the first antenna set is less than a first threshold; or, when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set to the second received signal corresponding to the second antenna set is less than the first threshold. Through the above design, when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, it means that the channel quality between the network device and the first antenna set is better than the channel quality between the network device and the second antenna set. At this time, when the network device sends a receive signal to the terminal, the second receive signal has less interference with the first receive signal; when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, it means that the channel quality between the network device and the second antenna set is better than the channel quality between the network device and the first antenna set. At this time, when the network device sends a receive signal to the terminal, the first receive signal has less interference with the second receive signal.
一种可能的设计中，第一CSI中的第一秩指示信息是由第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果确定的；第二CSI中的第二秩指示信息是由第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果确定的；其中，第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果是根据CSI-RS确定的。通过上述设计，终端设备可以根据第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果，准确确定第一秩指示信息和第二秩指示信息。In one possible design, the first rank indication information in the first CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; the second rank indication information in the second CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; wherein the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set are determined based on the CSI-RS. Through the above design, the terminal device can accurately determine the first rank indication information and the second rank indication information based on the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set.
一种可能的设计中，确定预先定义的第一CSI和/或第二CSI中的CQI的确定方式；或者，接收来自网络设备的第三指示信息，第三指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式；或者，向网络设备发送第四指示信息，第四指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式。通过上述设计，本申请实施例终端设备可以通过多种不同的方式确定第一CSI和/或第二CSI中的CQI的确定方式。In one possible design, a method for determining a predefined CQI in the first CSI and/or the second CSI is determined; or, third indication information is received from a network device, the third indication information is used to indicate a method for determining the CQI in the first CSI and/or the second CSI; or, fourth indication information is sent to the network device, the fourth indication information is used to indicate a method for determining the CQI in the first CSI and/or the second CSI. Through the above design, the terminal device of the embodiment of the present application can determine a method for determining the CQI in the first CSI and/or the second CSI in a variety of different ways.
一种可能的设计中，向网络设备发送第五指示信息，第五指示信息用于指示第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI中的第二秩指示信息对应的天线标识。通过上述设计，网络设备在接收到第五指示信息之后，可以根据第五指示信息，快速且准确的确定第一天线集合对应的预编码矩阵和第二天线集合对应的预编码矩阵。In one possible design, fifth indication information is sent to the network device, and the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set. Through the above design, after receiving the fifth indication information, the network device can quickly and accurately determine the precoding matrix corresponding to the first antenna set and the precoding matrix corresponding to the second antenna set based on the fifth indication information.
一种可能的设计中，第五指示信息对应于终端设备的通信带宽。通过上述设计，终端设备发送的第五指示信息对应于终端设备的整个通信带宽，在整个通信带宽上均采用第五指示信息所指示的第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI信息中的第二秩指示信息对应的天线标识。终端设备基于该种全带粒度的方式发送第五指示信息，可以减少指示信息量，降低信令开销。In one possible design, the fifth indication information corresponds to the communication bandwidth of the terminal device. Through the above design, the fifth indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device, and the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set indicated by the fifth indication information and/or the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set are used in the entire communication bandwidth. The terminal device sends the fifth indication information based on this full-band granularity, which can reduce the amount of indication information and reduce signaling overhead.
一种可能的设计中，M为8。通过上述设计，在终端设备包括8根天线时，可以基于本申请实施例的方案进行下行传输。In one possible design, M is 8. Through the above design, when the terminal device includes 8 antennas, downlink transmission can be performed based on the solution of the embodiment of the present application.
第二方面，提供一种通信方法，该方法的执行主体可以是接入网设备或者位于接入网设备中的芯片、芯片***或者电路，该方法可以通过以下步骤实现：向终端设备发送CSI-RS；接收来自终端设备的CSI集合；其中CSI集合是根据CSI-RS确定的，CSI集合中包括第一CSI和第二CSI，第一CSI为终端设备的第一天线集合对应的CSI，第二CSI为终端设备的第二天线集合对应的CSI；终端设备对应M个天线标识，第一天线集合对应M个天线标识中的一部分，第二天线集合对应M个天线标识中的另一部分，M为大于1的整数；向终端设备发送接收信号，接收信号包括第一天线集合对应的第一接收信号和第二天线集合对应的第二接收信号。In a second aspect, a communication method is provided, wherein the execution subject of the method may be an access network device or a chip, a chip system or a circuit located in the access network device, and the method may be implemented by the following steps: sending a CSI-RS to a terminal device; receiving a CSI set from the terminal device; wherein the CSI set is determined based on the CSI-RS, and the CSI set includes a first CSI and a second CSI, the first CSI is the CSI corresponding to the first antenna set of the terminal device, and the second CSI is the CSI corresponding to the second antenna set of the terminal device; the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1; sending a receive signal to the terminal device, the receive signal includes a first receive signal corresponding to the first antenna set and a second receive signal corresponding to the second antenna set.
本申请实施例中，在终端设备包括多根天线时，将终端设备的多根天线划分为两个天线集合；终端设备通过两个天线集合分别接收网络设备发送的CSI-RS，并针对每个天线集合分别确定CSI。网络设备基于每个天线集合对应的CSI，向终端设备发送第一天线集合对应的第一接收信号，以及第二天线集合对应的第二接收信号。基于此，本申请实施例提供一种在终端设备包括多根天线时的下行传输方案，提高***性能；并且通过将终端设备的多根天线划分为两个天线集合，针对两个天线集合分别进行下行传输，可以简化针对多根天线的下行传输流程。In an embodiment of the present application, when a terminal device includes multiple antennas, the multiple antennas of the terminal device are divided into two antenna sets; the terminal device receives the CSI-RS sent by the network device through the two antenna sets respectively, and determines the CSI for each antenna set respectively. Based on the CSI corresponding to each antenna set, the network device sends a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set to the terminal device. Based on this, an embodiment of the present application provides a downlink transmission scheme when a terminal device includes multiple antennas to improve system performance; and by dividing the multiple antennas of the terminal device into two antenna sets and performing downlink transmission for the two antenna sets respectively, the downlink transmission process for multiple antennas can be simplified.
一种可能的设计中，天线标识包括SRS天线端口号、和/或天线个数标号。In one possible design, the antenna identifier includes the SRS antenna port number and/or the antenna number.
一种可能的设计中，向终端设备发送第一指示信息，第一指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。通过上述设计，网络设备将天线集合的划分方式通知终 端设备，从而终端设备和网络设备基于相同的天线集合划分方式进行下行传输。In one possible design, first indication information is sent to the terminal device, and the first indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set. Through the above design, the network device notifies the terminal device of the division method of the antenna set. The terminal device and the network device perform downlink transmission based on the same antenna set division method.
一种可能的设计中，第一指示信息对应于终端设备的通信带宽。通过上述设计，网络设备发送的第一指示信息对应于终端设备的整个通信带宽，在整个通信带宽上均采用第一指示信息所指示的天线集合划分方式，网络设备基于该种全带粒度的方式发送第一指示信息，可以减少指示信息量，降低信令开销。In one possible design, the first indication information corresponds to the communication bandwidth of the terminal device. Through the above design, the first indication information sent by the network device corresponds to the entire communication bandwidth of the terminal device, and the antenna set division method indicated by the first indication information is used on the entire communication bandwidth. The network device sends the first indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
一种可能的设计中，接收来自终端设备的第二指示信息，第二指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。通过上述设计，终端设备将天线集合的划分方式通知网络设备，从而终端设备和网络设备基于相同的天线集合划分方式进行下行传输。In one possible design, second indication information is received from the terminal device, and the second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set. Through the above design, the terminal device notifies the network device of the division method of the antenna set, so that the terminal device and the network device perform downlink transmission based on the same antenna set division method.
一种可能的设计中，第二指示信息对应于终端设备的通信带宽。通过上述设计，终端设备发送的第二指示信息对应于终端设备的整个通信带宽。在整个通信带宽上均采用第二指示信息所指示的天线集合划分方式。终端设备基于该种全带粒度的方式发送第二指示信息，可以减少指示信息量，降低信令开销。In one possible design, the second indication information corresponds to the communication bandwidth of the terminal device. Through the above design, the second indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device. The antenna set division method indicated by the second indication information is adopted on the entire communication bandwidth. The terminal device sends the second indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
一种可能的设计中，第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识是预先定义的。通过上述设计，终端设备和网络设备通过预定定义的方式确定天线集合的划分方式，示例性的，终端设备和网络设备基于协议约定的方式确定天线集合的划分方式。In one possible design, the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined. Through the above design, the terminal device and the network device determine the division method of the antenna set in a predetermined manner. Exemplarily, the terminal device and the network device determine the division method of the antenna set based on a protocol agreement.
一种可能的设计中，第一接收信号和第二接收信号满足如下第一规则，第一规则是预先定义的；第一规则包括：在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，第二天线集合对应的第二接收信号对第一天线集合对应的第一接收信号的干扰小于第一阈值；或，在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，第一天线集合对应的第一接收信号对第二天线集合对应的第二接收信号的干扰小于第一阈值。通过上述设计，在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，表示网络设备与第一天线集合之间的信道质量优于网络设备与第二天线集合之间的信道质量，此时在网络设备向终端发送接收信号时，第二接收信号对第一接收信号的干扰较小；在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，表示网络设备与第二天线集合之间的信道质量优于网络设备与第一天线集合之间的信道质量，此时在网络设备向终端发送接收信号时，第一接收信号对第二接收信号的干扰较小。In one possible design, the first received signal and the second received signal satisfy the following first rule, which is predefined; the first rule includes: when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the interference of the second received signal corresponding to the second antenna set to the first received signal corresponding to the first antenna set is less than a first threshold; or, when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set to the second received signal corresponding to the second antenna set is less than the first threshold. Through the above design, when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, it means that the channel quality between the network device and the first antenna set is better than the channel quality between the network device and the second antenna set. At this time, when the network device sends a receive signal to the terminal, the second receive signal has less interference with the first receive signal; when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, it means that the channel quality between the network device and the second antenna set is better than the channel quality between the network device and the first antenna set. At this time, when the network device sends a receive signal to the terminal, the first receive signal has less interference with the second receive signal.
一种可能的设计中，确定预先定义的第一CSI和/或第二CSI中的CQI的确定方式；或者，向终端设备发送第三指示信息，第三指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式；或者，接收来自终端设备的第四指示信息，第四指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式。通过上述设计，本申请实施例终端设备可以通过多种不同的方式确定第一CSI和/或第二CSI中的CQI的确定方式。In one possible design, a method for determining a predefined CQI in the first CSI and/or the second CSI is determined; or, third indication information is sent to the terminal device, the third indication information is used to indicate a method for determining the CQI in the first CSI and/or the second CSI; or, fourth indication information is received from the terminal device, the fourth indication information is used to indicate a method for determining the CQI in the first CSI and/or the second CSI. Through the above design, the terminal device of the embodiment of the present application can determine a method for determining the CQI in the first CSI and/or the second CSI in a variety of different ways.
一种可能的设计中，接收来自终端设备的第五指示信息，第五指示信息用于指示第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI中的第二秩指示信息对应的天线标识。通过上述设计，网络设备在接收到第五指示信息之后，可以根据第五指示信息，快速且准确的确定第一天线集合对应的预编码矩阵和第二天线集合对应的预编码矩阵。In one possible design, fifth indication information is received from a terminal device, and the fifth indication information is used to indicate an antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or an antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set. Through the above design, after receiving the fifth indication information, the network device can quickly and accurately determine the precoding matrix corresponding to the first antenna set and the precoding matrix corresponding to the second antenna set based on the fifth indication information.
一种可能的设计中，第五指示信息对应于终端设备的通信带宽。通过上述设计，终端设备发送的第五指示信息对应于终端设备的整个通信带宽，在整个通信带宽上均采用第五指示信息所指示的第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI信息中的第二秩指示信息对应的天线标识。终端设备基于该种全带粒度的方式发送第五指示信息，可以减少指示信息量，降低信令开销。In one possible design, the fifth indication information corresponds to the communication bandwidth of the terminal device. Through the above design, the fifth indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device, and the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set indicated by the fifth indication information and/or the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set are used in the entire communication bandwidth. The terminal device sends the fifth indication information based on this full-band granularity, which can reduce the amount of indication information and reduce signaling overhead.
一种可能的设计中，M为8。在终端设备包括8根天线时，可以基于本申请实施例的方案进行下行传输。In one possible design, M is 8. When the terminal device includes 8 antennas, downlink transmission can be performed based on the solution of the embodiment of the present application.
第三方面，本申请还提供一种通信装置，该通信装置具有实现上述第一方面或者其任意可能的设计中的方法的功能。该通信装置可以通过硬件实现，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单元或模块。In a third aspect, the present application further provides a communication device, which has the function of implementing the method in the first aspect or any possible design thereof. The communication device 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.
一种可能的设计中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中终端设备的相应功能。该通信装置还可以包括存储器(或存储介质)，该存储器可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与接入网设备等设备之间的通信。接口电路还可以是收发器，收发器可以包括发送器和接收器，发送器和接收器可以是不同的器件，也可以是同一个器件但能够实现不同的功能。In one possible design, the communication device includes: a processor, which is configured to support the communication device to perform the corresponding functions of the terminal device in the method shown above. The communication device may also include a memory (or storage medium), which may be coupled to the processor and stores the necessary program instructions and data for the communication device. Optionally, the communication device also includes an interface circuit, which is used to support communication between the communication device and an access network device or other device. The interface circuit may also be a transceiver, and the transceiver may include a transmitter and a receiver. The transmitter and the receiver may be different devices, or may be the same device but capable of implementing different functions.
一种可能的设计中，该通信装置包括相应的功能模块，分别用于实现以上方法中的步骤。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。硬件或软件包括一个或多个与上述功能相对应的模块。In one possible design, the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method. The hardware or software may be implemented by hardware, or the corresponding software may be implemented by hardware. The hardware or software may include one or more modules corresponding to the above functions.
一种可能的设计中，通信装置的结构中包括处理单元(或处理模块)和通信单元(或通信模块)，这些单元可以执行上述方法示例中相应功能，具体参见第一方面或第三方面提供的方法中的描述，此处不做赘述。通信单元(或通信模块)还可以是收发单元(或收发模块)，收发单元可以包括发送单元和接收单元，发送单元和接收单元可以是不同的单元，也可以是同一个单元但能够实现不同的功能。In one possible design, the structure of the communication device includes a processing unit (or processing module) and a communication unit (or communication module), which can perform the corresponding functions in the above method examples. For details, please refer to the description of the method provided in the first aspect or the third aspect, which will not be repeated here. The communication unit (or communication module) can also be a transceiver unit (or transceiver module), and the transceiver unit can include a sending unit and a receiving unit. The sending unit and the receiving unit can be different units, or they can be the same unit but can implement different functions.
该通信装置可以是终端设备或终端设备中的芯片或芯片***。如果该通信装置为终端设备，收发器可以是终端设备中的射频收发组件。如果该通信装置为设置在终端设备中的芯片或芯片***，收发器可以是芯片或芯片***中的通信接口，该通信接口与终端设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。The communication device may be a terminal device or a chip or chip system in the terminal device. If the communication device is a terminal device, the transceiver may be a radio frequency transceiver component in the terminal device. If the communication device is a chip or chip system provided in the terminal device, the transceiver may be a communication interface in the chip or chip system, and the communication interface is connected to the radio frequency transceiver component in the terminal device to realize information transmission and reception through the radio frequency transceiver component.
第四方面，本申请还提供一种通信装置，该通信装置具有实现上述第二方面或者其任意可能的设计中的方法的功能。该通信装置可以通过硬件实现，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单元或模块。In a fourth aspect, the present application further provides a communication device, which has the function of implementing the method in the second aspect or any possible design thereof. The communication device 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.
一种可能的设计中，该通信装置包括：处理器，该处理器被配置为支持该通信装置执行以上所示方法中接入网设备的相应功能。该通信装置还可以包括存储器，该存储可以与处理器耦合，其保存该通信装置必要的程序指令和数据。可选地，该通信装置还包括接口电路，该接口电路用于支持该通信装置与终端设备等设备之间的通信。接口电路还可以是收发器，收发器可以包括发送器和接收器，发送器和接收器可以是不同的器件，也可以是同一个器件但能够实现不同的功能。In one possible design, the communication device includes: a processor, the processor is configured to support the communication device to perform the corresponding functions of the access network device in the method shown above. The communication device may also include a memory, which may be coupled to the processor and stores the necessary program instructions and data for the communication device. Optionally, the communication device also includes an interface circuit, which is used to support communication between the communication device and a terminal device or other device. The interface circuit may also be a transceiver, and the transceiver may include a transmitter and a receiver, and the transmitter and the receiver may be different devices, or may be the same device but capable of implementing different functions.
一种可能的设计中，该通信装置包括相应的功能模块，分别用于实现以上方法中的步骤。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。硬件或软件包括一个或多个与上述功能相对应的模块。In one possible design, the communication device includes corresponding functional modules, which are respectively used to implement the steps in the above method. The functions can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions.
一种可能的设计中，通信装置的结构中包括处理单元(或处理模块)和通信单元(或通信模块)，这些单元可以执行上述方法示例中相应功能，具体参见第二方面或第四方面提供的方法中的描述，此处不做赘述。通信单元(或通信模块)还可以是收发单元(或收发模块)，收发单元可以包括发送单元和接收单元，发送单元和接收单元可以是不同的单元，也可以是同一个单元但能够实现不同的功能。In one possible design, the structure of the communication device includes a processing unit (or processing module) and a communication unit (or communication module), which can perform the corresponding functions in the above method examples. For details, please refer to the description of the method provided in the second aspect or the fourth aspect, which will not be repeated here. The communication unit (or communication module) can also be a transceiver unit (or transceiver module), and the transceiver unit can include a sending unit and a receiving unit. The sending unit and the receiving unit can be different units, or they can be the same unit but can implement different functions.
该通信装置可以是网络设备或网络设备中的芯片或芯片***。如果该通信装置为网络设备，收发器可以是网络设备中的射频收发组件。如果该通信装置为设置在网络设备中的芯片或芯片***，收发器可以是芯片或芯片***中的通信接口，该通信接口与网络设备中的射频收发组件连接，以通过射频收发组件实现信息的收发。The communication device may be a network device or a chip or chip system in the network device. If the communication device is a network device, the transceiver may be a radio frequency transceiver component in the network device. If the communication device is a chip or a chip system provided in the network device, the transceiver may be a communication interface in the chip or the chip system, and the communication interface is connected to the radio frequency transceiver component in the network device to realize information transmission and reception through the radio frequency transceiver component.
第五方面，提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序或指令，当该计算机程序或指令被处理器执行时，实现前述第一方面至或第二方面中任一方面或者其任意可能的设计中的方法。In a fifth aspect, a computer-readable storage medium is provided, which stores a computer program or instruction. When the computer program or instruction is executed by a processor, the method of any one of the first aspect to the second aspect or any possible design thereof is implemented.
第六方面，提供了一种存储有指令的计算机程序产品，当该指令被处理器运行时，实现前述第一方面至或第二方面中任一方面或者其任意可能的设计中的方法。In a sixth aspect, a computer program product storing instructions is provided, which, when executed by a processor, implements the method in any one of the first to second aspects or any possible designs thereof.
第七方面，提供一种通信装置，该通信装置包括处理器，还可以包括存储介质，该存储介质存储有指令，该指令被该处理器执行时，用于实现前述第一方面至或第二方面中任一方面或者其任意可能的设计中的方法。该通信装置可以是芯片***。该芯片***可以由芯片构成，也可以包含芯片和其他分立器件。In a seventh aspect, a communication device is provided, the communication device includes a processor, and may also include a storage medium, the storage medium stores instructions, and when the instructions are executed by the processor, the method in any of the first aspect to the second aspect or any possible design thereof is implemented. The communication device may be a chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices.
第八方面，提供一种通信***，该通信***包括第三方面所述的装置(如终端设备)以及第四方面所述的装置(如网络设备)。In an eighth aspect, a communication system is provided, which includes the device described in the third aspect (such as a terminal device) and the device described in the fourth aspect (such as a network device).
第九方面，本申请还提供了一种芯片，包括处理器，所述处理器与存储器耦合，用于读取并执行所述存储器中存储的程序指令，以使所述芯片实现上述第一方面或第一方面任一种可能的设计中所述的方法，或者实现上述第二方面或第二方面任一种可能的设计中所述的方法。In the ninth aspect, the present application also provides a chip, including a processor, which is coupled to a memory and is used to read and execute program instructions stored in the memory so that the chip implements the method described in the above-mentioned first aspect or any possible design of the first aspect, or implements the method described in the above-mentioned second aspect or any possible design of the second aspect.
上述第三方面至第九方面中的各个方面以及各个方面可能达到的技术效果请参照上述针对第一方面或第一方面中的各种可能方案，或者上述第二方面或第二方面中的各种可能方案可以达到的技术效果说明，这里不再重复赘述。 For each of the above-mentioned aspects from the third to the ninth aspect and the technical effects that may be achieved by each of the aspects, please refer to the above-mentioned description of the technical effects that can be achieved by the first aspect or the various possible schemes in the first aspect, or the above-mentioned second aspect or the various possible schemes in the second aspect, and no repetition will be given here.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本申请实施例提供的一种通信***的架构示意图；FIG1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;
图2为本申请实施例提供的一种网络设备的结构示意图；FIG2 is a schematic diagram of the structure of a network device provided in an embodiment of the present application;
图3为本申请实施例提供的一种gNB的结构示意图；FIG3 is a schematic diagram of the structure of a gNB provided in an embodiment of the present application;
图4为本申请实施例提供的一种网络设备与UE之间通信的示意图；FIG4 is a schematic diagram of communication between a network device and a UE provided in an embodiment of the present application;
图5为本申请实施例提供的一种通信方法流程图；FIG5 is a flow chart of a communication method provided in an embodiment of the present application;
图6为本申请实施例提供的终端设备的天线集合划分方式示意图；FIG6 is a schematic diagram of a method for dividing antenna sets of a terminal device provided in an embodiment of the present application;
图7为本申请实施例提供的矩阵QR分解示意图；FIG7 is a schematic diagram of matrix QR decomposition provided in an embodiment of the present application;
图8为本申请实施例提供的下三角矩阵RH的示意图；FIG8 is a schematic diagram of a lower triangular matrix RH provided in an embodiment of the present application;
图9为本申请实施例提供的网络设备发送接收信号的示意图；FIG9 is a schematic diagram of a network device sending and receiving signals according to an embodiment of the present application;
图10为本申请实施例提供的一种通信装置的结构示意图；FIG10 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;
图11为本申请实施例提供的一种通信装置的结构示意图；FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;
图12为本申请实施例提供的一种通信装置的结构示意图；FIG12 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;
图13为本申请实施例提供的一种通信装置的结构示意图。FIG13 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
具体实施方式Detailed ways
为了使本申请实施例的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施例作进一步地详细描述。In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.
以下，对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。Below, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.
1)信道探测参考信号(sounding reference signal，SRS)1) Channel sounding reference signal (SRS)
SRS是由终端设备发送的一种参考信号；新无线(new radio，NR)***中支持网络设备利用SRS获取上行信道信息。对于时分双工(time division duplexing，TDD)***，网络设备还可以利用信道互异性，通过测量终端设备发送的SRS获取下行信道信息。另外，网络设备除了可以利用SRS获取上行信号信息或下行信道信息以外，还可以使用SRS进行上行波束的管理，包括波束训练，波束切换等。SRS is a reference signal sent by the terminal device; the new radio (NR) system supports network devices to use SRS to obtain uplink channel information. For time division duplexing (TDD) systems, network devices can also use channel reciprocity to obtain downlink channel information by measuring the SRS sent by the terminal device. In addition, in addition to using SRS to obtain uplink signal information or downlink channel information, network devices can also use SRS to manage uplink beams, including beam training, beam switching, etc.
2)天线端口(antenna port)2) Antenna port
天线端口也可以简称端口。天线端口可以为被接收端设备所识别的发射天线，或者在空间上可以区分的发射天线。针对每个虚拟天线可以配置一个天线端口，每个虚拟天线可以为多个物理天线的加权组合，每个天线端口可以与一个参考信号端口对应。Antenna ports can also be referred to as ports. Antenna ports can be transmit antennas identified by a receiving device, or transmit antennas that can be distinguished in space. An antenna port can be configured for each virtual antenna, each virtual antenna can be a weighted combination of multiple physical antennas, and each antenna port can correspond to a reference signal port.
3)信道状态信息参考信号(channel state information reference signal，CSI-RS)3) Channel state information reference signal (CSI-RS)
长期演进(long term evolution，LTE)***从R10开始引入了CSI-RS用于信道测量。区别于全向发送的CRS信号和只有数据传输时才发送的DMRS信号，终端设备可以基于网络设备配置的CSI-RS信号获取信道状态信息(channel state information，CSI)，同时CSI-RS信号支持更多的天线端口。The long-term evolution (LTE) system has introduced CSI-RS for channel measurement since R10. Different from the CRS signal that is sent omnidirectionally and the DMRS signal that is sent only during data transmission, the terminal device can obtain channel state information (CSI) based on the CSI-RS signal configured by the network device. At the same time, the CSI-RS signal supports more antenna ports.
NR***中的CSI-RS的作用包括：The functions of CSI-RS in the NR system include:
a、获取信道状态信息；示例性的，CSI-RS可以用于调度、链路自适应以及和MIMO相关的传输设置。a. Obtain channel state information; illustratively, CSI-RS can be used for scheduling, link adaptation, and MIMO-related transmission settings.
b、用于波束管理；示例性的，基于CSI-RS可以获取UE终端设备和网络设备侧波束的赋形权值，用于支持波束管理过程。b. Used for beam management; illustratively, the shaping weights of the beams on the UE terminal device and the network device side can be obtained based on the CSI-RS to support the beam management process.
c、精确的时频跟踪；示例性的，在NR***中可以通过设置跟踪参考信号(tracking reference signal，TRS)来实现。c. Accurate time-frequency tracking. For example, this can be achieved in the NR system by setting a tracking reference signal (TRS).
d、用于移动性管理；示例性的，在NR***中通过对本小区和邻小区的CSI-RS信号获取跟踪，来完成终端设备的移动性管理相关的测量需求。d. For mobility management; illustratively, in the NR system, the CSI-RS signals of the current cell and the neighboring cells are tracked to complete the measurement requirements related to the mobility management of the terminal device.
e、用于速率匹配；示例性的，通过零功率的CSI-RS信号的设置完成数据信道的资源单元(Resource Element，RE)级别的速率匹配功能。e. Used for rate matching; illustratively, the rate matching function at the resource element (RE) level of the data channel is completed by setting a zero-power CSI-RS signal.
为了支持类似于LTE R14中的Class A(非预编码CSI-RS)和Class B(波束赋形CSI-RS)CSI反馈，可以通过无线资源控制(radio resource control，RRC)信令为终端设备配置一个或者多个CSI-RS资源集合。每个CSI-RS资源集合包含一个或多个CSI-RS资源，每个CSI-RS资源最大配置32个端口，可以映射在一个或者多个正交频分复用技术(orthogonal frequency division multiplexing，OFDM)符号上。 In order to support Class A (non-precoded CSI-RS) and Class B (beamforming CSI-RS) CSI feedback similar to LTE R14, one or more CSI-RS resource sets can be configured for the terminal device through radio resource control (RRC) signaling. Each CSI-RS resource set contains one or more CSI-RS resources, each CSI-RS resource is configured with a maximum of 32 ports, and can be mapped to one or more orthogonal frequency division multiplexing (OFDM) symbols.
4)CSI4) CSI
CSI是无线通信中一种描述信道的数据，在无线通信中CSI表示通信链路的传播特性，可以用于描述信道中散射、衰落、功率衰减等多种效应的联合影响。获取CSI的方式称为信道估计。终端设备向网络设备反馈的CSI可以包括：信道质量指示(channel quality indicator，CQI)、秩(RI)、层指示(LI)、预编码矩阵指示(precoding matrix indicator，PMI)。终端设备上报CSI给网络设备，网络设备会根据上报的内容进行调度的调整以及波束管理相关工作。CSI is a kind of data describing the channel in wireless communication. In wireless communication, CSI represents the propagation characteristics of the communication link and can be used to describe the combined impact of multiple effects such as scattering, fading, and power attenuation in the channel. The method of obtaining CSI is called channel estimation. The CSI fed back by the terminal device to the network device may include: channel quality indicator (CQI), rank (RI), layer indicator (LI), and precoding matrix indicator (PMI). The terminal device reports CSI to the network device, and the network device will adjust the scheduling and beam management related work according to the reported content.
预编码技术，发送设备可以在已知信道状态信息的情况下，借助与信道资源相匹配的预编码矩阵对待发送的信号进行处理，使得经过预编码的待发送的信号与信道相适配，从而使得接收设备接收信号的质量(例如信号与干扰加噪声比(signal to interference plus noise ratio，SINR)等)得以提升，可以降低接收设备消除信道间影响的复杂度。采用预编码技术，可以实现发送设备将占用相同时频资源的多个并行的数据流发给一个接收设备，即实现单用户多输入多输出(single-user multiple-input multiple-output，SU-MIMO)，也可以实现发送设备与多个接收设备在相同的时频资源上传输数据，即实现多用户多输入多输出(multiple user multiple input multiple output，MU-MIMO)。应注意，有关预编码技术的相关描述仅为便于理解而示例，并非用于限制本申请实施例的保护范围。在具体实现过程中，发送设备还可以通过其他方式进行预编码。例如，在未获知信道状态信息的情况下，采用预先设置的预编码矩阵或者加权处理方式进行预编码等。为了简洁，其具体内容本文不再赘述。Precoding technology, the transmitting device can process the signal to be transmitted with the help of a precoding matrix matching the channel resources when the channel state information is known, so that the precoded signal to be transmitted is adapted to the channel, thereby improving the quality of the signal received by the receiving device (such as signal to interference plus noise ratio (SINR), etc.), and reducing the complexity of the receiving device to eliminate the influence between channels. Using precoding technology, the transmitting device can send multiple parallel data streams occupying the same time-frequency resources to a receiving device, that is, single-user multiple-input multiple-output (SU-MIMO), and the transmitting device and multiple receiving devices can transmit data on the same time-frequency resources, that is, multiple-user multiple-input multiple-output (MU-MIMO). It should be noted that the relevant description of the precoding technology is only for the sake of understanding and is not used to limit the protection scope of the embodiments of the present application. In the specific implementation process, the transmitting device can also perform precoding in other ways. For example, when the channel state information is not known, a preset precoding matrix or a weighted processing method is used for precoding, etc. For the sake of brevity, the specific content is not described in detail herein.
前文介绍了本申请实施例所涉及的部分用语，下面介绍本申请所提供的方法应用的网络***的架构。The foregoing text introduces some of the terms involved in the embodiments of the present application. The following text introduces the architecture of the network system to which the method provided by the present application is applied.
本申请提供的技术方案可以应用于各种通信***，例如，可以是物联网(internet of things，IoT)、窄带物联网(narrow band internet of things，NB-IoT)、长期演进(long term evolution，LTE)，也可以是5G通信***，还可以是LTE与5G混合架构、也可以是5G NR***以及未来通信发展中出现的新的通信***等。本申请所述的5G通信***可以包括非独立组网(non-standalone，NSA)的5G通信***、独立组网(standalone，SA)的5G通信***中的至少一种。通信***还可以是公共陆地移动网络(public land mobile network，PLMN)网络、设备到设备(device-to-device，D2D)网络、机器到机器(machine to machine，M2M)网络或者其他网络。The technical solution provided in this application can be applied to various communication systems, for example, it can be the Internet of Things (IoT), narrowband Internet of Things (NB-IoT), long term evolution (LTE), or a 5G communication system, or a hybrid architecture of LTE and 5G, or a 5G NR system, and new communication systems that will emerge in the future development of communication. The 5G communication system described in this application may include at least one of a non-standalone (NSA) 5G communication system and a standalone (SA) 5G communication system. The communication system may also be a public land mobile network (PLMN) network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, or other networks.
参阅图1所示，为本申请实施例提供的一种通信***，该通信***包括网络设备和六个终端设备，以UE1～UE6为例。在该通信***中，网络设备可以分别在下行链路上向UE1～UE6发送信号，UE1～UE6可以接收网络设备发送的下行信号。此外，UE4～UE6也可以组成一个子通信***。网络设备可以在下行链路上向UE1、UE2、UE3、UE5发送下行信号。UE5可以基于D2D技术在终端间链路(sidelink，SL)向UE4、UE6发送信号。图1仅是一种示意图，本申请并不对通信***的类型，以及通信***内包括的设备的数量、类型等进行具体限定。Referring to FIG. 1 , a communication system is provided for an embodiment of the present application, and the communication system includes a network device and six terminal devices, taking UE1 to UE6 as an example. In the communication system, the network device can send signals to UE1 to UE6 on the downlink, respectively, and UE1 to UE6 can receive downlink signals sent by the network device. In addition, UE4 to UE6 can also form a sub-communication system. The network device can send downlink signals to UE1, UE2, UE3, and UE5 on the downlink. UE5 can send signals to UE4 and UE6 on the sidelink (SL) based on D2D technology. FIG. 1 is only a schematic diagram, and the present application does not specifically limit the type of communication system, and the number and type of devices included in the communication system.
本申请实施例中涉及的终端设备，是用户侧的一种用于接收或发射信号的实体。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。终端设备也可以是连接到无线调制解调器的其他处理设备。终端设备可以通过无线接入网(radio access network，RAN)与一个或多个核心网进行通信。终端设备也可以称为无线终端、订户单元(subscriber unit)、订户站(subscriber station)，移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端(remote terminal)、接入终端(access terminal)、用户终端(user terminal)、用户代理(user agent)、用户设备(user device)、或用户装备(user equipment)等等。终端设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言、数据。例如，终端设备还可以是个人通信业务(personal communication service，PCS)电话、无绳电话、会话发起协议(session initiation protocol，SIP)话机、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、等设备。常见的终端设备例如包括：手机、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，例如智能手表、智能手环、计步器等，但本申请实施例不限于此。本申请实施例中涉及的终端设备还可以是未来演进的PLMN中出现的终端设备等，本申请实施例对此并不限定。The terminal device involved in the embodiments of the present application is an entity on the user side for receiving or transmitting signals. The terminal device can be a device that provides voice and data connectivity to users, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device can also be other processing devices connected to a wireless modem. The terminal device can communicate with one or more core networks through a radio access network (RAN). The terminal device can also be called a wireless terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment, etc. The terminal device may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and data with a wireless access network. For example, the terminal device may also be a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and other devices. Common terminal devices include, for example: mobile phones, tablet computers, laptop computers, PDAs, mobile internet devices (MIDs), wearable devices, such as smart watches, smart bracelets, pedometers, etc., but the embodiments of the present application are not limited thereto. The terminal devices involved in the embodiments of the present application may also be terminal devices that appear in the future evolving PLMN, etc., and the embodiments of the present application are not limited thereto.
此外，在本申请实施例中，终端设备还可以是IoT***中的终端设备，IoT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。在本申请实施例中，IoT技术可以通过例如窄带(narrow band，NB)技术，做到海量连接， 深度覆盖，终端省电。In addition, in the embodiment of the present application, the terminal device may also be a terminal device in an IoT system. IoT 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-machine interconnection and object-to-object interconnection. In the embodiment of the present application, IoT technology can achieve massive connections through narrowband (NB) technology, for example. Deep coverage and terminal power saving.
此外，在本申请实施例中，终端设备还可以包括智能打印机、火车探测器、加油站等传感器，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。In addition, in an embodiment of the present application, the terminal device may also include sensors such as smart printers, train detectors, gas stations, etc., and its main functions include collecting data (partial terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
本申请实施例中所涉及的网络设备，是网络侧的一种用于发射或接收信号的实体。本申请实施例中的网络设备可以是无线网络中的设备，例如将终端接入到无线网络的RAN节点。例如，网络设备可以是LTE中的演进型基站(evolutional Node B，eNB或e-NodeB)，还可以是新无线控制器(new radio controller，NR controller)，可以是5G***中的gNode B(gNB)，可以是集中式网元(centralized unit，CU)，可以是新无线基站，可以是射频拉远模块，可以是微基站，可以是中继(relay)，可以是分布式网元(distributed unit，DU)，可以是家庭基站，可以是传输接收点(transmission reception point，TRP)或传输点(transmission point，TP)或者任何其它无线接入设备，但本申请实施例不限于此。网络设备可以覆盖1个或多个小区。The network device involved in the embodiments of the present application is an entity on the network side for transmitting or receiving signals. The network device in the embodiments of the present application may be a device in a wireless network, such as a RAN node that connects a terminal to a wireless network. For example, the network device may be an evolutionary Node B (eNB or e-NodeB) in LTE, or a new radio controller (NR controller), a gNode B (gNB) in a 5G system, a centralized unit (CU), a new wireless base station, a radio frequency remote module, a micro base station, a relay, a distributed unit (DU), a home base station, a transmission reception point (TRP) or a transmission point (TP) or any other wireless access device, but the embodiments of the present application are not limited thereto. The network device may cover one or more cells.
示例性的，本申请实施例中的网络设备的结构可以如图2所示。具体的，无线接入网设备可以划分为CU和至少一个DU。其中，CU可以用于管理或者控制至少一个DU，也可以称之为CU与至少一个DU连接。这种结构可以将通信***中无线接入网设备的协议层拆开，其中部分协议层放在CU集中控制，剩下部分或全部协议层功能分布在DU中，由CU集中控制DU。以无线接入网设备为gNB为例，gNB的协议层包括无线资源控制(radio resource control，RRC)层、业务数据适配协议(service data adaptation protocol，SDAP)层、分组数据汇聚协议(packet data convergence protocol，PDCP)层、无线链路控制(radio link control，RLC)层、媒体访问控制子层(media access control，MAC)层和物理层。其中，示例性的，CU可以用于实现RRC层、SDAP层和PDCP层的功能，DU可以用于实现RLC层、MAC层和物理层的功能。本申请实施例不对CU、DU包括的协议栈做具体限定。Exemplarily, the structure of the network device in the embodiment of the present application can be shown in FIG2. Specifically, the wireless access network device can be divided into a CU and at least one DU. Among them, the CU can be used to manage or control at least one DU, which can also be referred to as a CU connected to at least one DU. This structure can separate the protocol layer of the wireless access network device in the communication system, wherein some of the protocol layers are placed in the CU for centralized control, and the remaining part or all of the protocol layer functions are distributed in the DU, and the DU is centrally controlled by the CU. Taking the wireless access network device as a gNB as an example, the protocol layer of the gNB includes a radio resource control (RRC) layer, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control sublayer (MAC) layer and a physical layer. Among them, exemplarily, the CU can be used to implement the functions of the RRC layer, the SDAP layer and the PDCP layer, and the DU can be used to implement the functions of the RLC layer, the MAC layer and the physical layer. The embodiment of the present application does not specifically limit the protocol stack included in the CU and DU.
示例性的，本申请实施例中的CU可以进一步分为一个控制面(CU-control plane，CU-CP)网元和多个用户面(CU-user plane，CU-UP)网元。其中，CU-CP可以用于控制面管理，CU-UP可以用于用户面数据传输。CU-CP与CU-UP之间的接口可以为E1口。CU-CP与DU之间的接口可以为F1-C，用于控制面信令的传输。CU-UP与DU之间的接口可以为F1-U，用于用户面数据传输。CU-UP与CU-UP之间可以通过Xn-U口进行连接，进行用户面数据传输。例如，以gNB为例，gNB的结构可以如图3所示。Exemplarily, the CU in the embodiment of the present application can be further divided into a control plane (CU-control plane, CU-CP) network element and multiple user plane (CU-user plane, CU-UP) network elements. Among them, CU-CP can be used for control plane management, and CU-UP can be used for user plane data transmission. The interface between CU-CP and CU-UP can be an E1 port. The interface between CU-CP and DU can be F1-C, which is used for the transmission of control plane signaling. The interface between CU-UP and DU can be F1-U, which is used for user plane data transmission. CU-UP and CU-UP can be connected through the Xn-U port for user plane data transmission. For example, taking gNB as an example, the structure of gNB can be shown in Figure 3.
示例性的，网络设备与UE之间的通信可以如图4所示，网络设备和UE可以通过RRC模块交互RRC信令。网络设备和UE可以通过MAC模块交互媒体介入控制控制元素(media access control control element，MAC CE)信令。网络设备和UE可以通过PHY交互上/下行控制信令例如物理上行控制信道(physical uplink control channel，PUCCH)/物理下行控制信道(physical downlink control channel，PDCCH)、上/下行数据信令例如物理上行共享信道(physical uplink shared channel，PUSCH)/物理下行共享信道(physical downlink shared channel，PDSCH)等。Exemplarily, the communication between the network device and the UE can be shown in FIG4 , and the network device and the UE can exchange RRC signaling through the RRC module. The network device and the UE can exchange media access control control element (MAC CE) signaling through the MAC module. The network device and the UE can exchange uplink/downlink control signaling such as physical uplink control channel (PUCCH)/physical downlink control channel (PDCCH), uplink/downlink data signaling such as physical uplink shared channel (PUSCH)/physical downlink shared channel (PDSCH) through PHY.
本申请实施例描述的网络架构以及业务场景是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
5G通信***对***容量、频谱效率等方面有了更高的要求。提升下行传输链路的传输速率是5G通信***的一个关键问题。终端设备在接收网络设备下发的下行数据时，可以通过多根天线接收下行数据。示例性的，可以在下行传输过程中使用8R接收机来有效提升频谱效率。8R接收机指示包含8根接收天线的接收机设备。8R接收机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。8R接收机也是在实际可操作的信干比范围内使能256QAM以及更高阶调制方案的主要方式之一。如何通过多根接收天线进行下行传输成为亟待解决的技术问题。5G communication systems have higher requirements for system capacity, spectrum efficiency, etc. Improving the transmission rate of the downlink transmission link is a key issue for 5G communication systems. When receiving downlink data sent by a network device, the terminal device can receive the downlink data through multiple antennas. For example, an 8R receiver can be used in the downlink transmission process to effectively improve the spectrum efficiency. The 8R receiver indicates a receiver device containing 8 receiving antennas. The 8R receiver can significantly improve the downlink throughput of a single user in a cell, and can also increase the coverage of users at the edge of the cell. The 8R receiver is also one of the main ways to enable 256QAM and higher-order modulation schemes within the actual operable signal-to-interference ratio range. How to perform downlink transmission through multiple receiving antennas has become a technical problem that needs to be solved urgently.
本申请实施例提供一种通信方法及装置，用以实现针对包括多根天线的终端设备的下行信号传输。其中，方法和装置是基于同一发明构思的，由于方法及装置解决问题的原理相似，因此装置与方法的实施可以相互参见，重复之处不再赘述。The embodiment of the present application provides a communication method and device for implementing downlink signal transmission for a terminal device including multiple antennas. The method and the device are based on the same inventive concept. Since the method and the device solve the problem in a similar way, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.
本申请实施例中“至少一个”是指一个或者多个，“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，可以表示下述情况之一：单独存在A，同时存在A和B，单独存在B，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或c中的至少一项(个)，或者，a、b和c中的至少一项(个)，可以表示下述情况之一：单独存在a，单独存在b，单独存在c，同时存在a和b，同时存在a和c，同时存在b和c，同时存在a、b和c，其中a、b、c可以是单个，也可以是多个。In the embodiments of the present application, "at least one" means one or more, and "more" means two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and/or B can mean one of the following situations: A exists alone, A and B exist at the same time, B exists alone, where A and B can be singular or plural. The character "/" generally indicates that the associated objects before and after are An "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items, for example, at least one of a, b or c, or at least one of a, b and c, which can mean one of the following situations: a exists alone, b exists alone, c exists alone, a and b exist at the same time, a and c exist at the same time, b and c exist at the same time, a, b and c exist at the same time, and a, b and c exist at the same time, where a, b and c can be single or plural.
以及，除非有相反的说明，本申请实施例提及“第一”、“第二”等序数词是用于对多个对象进行区分，不用于限定多个对象的大小、内容、顺序、时序、优先级或者重要程度等。例如，第一天线集合和第二天线集合，只是为了区分不同的天线集合，而并不是表示这两个天线集合的优先级或者重要程度等的不同。Furthermore, unless otherwise specified, ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the size, content, order, timing, priority or importance of multiple objects. For example, the first antenna set and the second antenna set are only used to distinguish different antenna sets, and do not indicate the difference in priority or importance of the two antenna sets.
需要说明的是，本申请中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
本申请实施例如下描述中所提到的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括其他没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。The terms "including" and "having" and any variations thereof mentioned in the following description of the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.
在本申请实施例中，“用于指示”可以包括用于直接指示和用于间接指示。例如，当描述某一指示信息用于指示信息I时，可以包括该指示信息直接指示I或间接指示I，而并不代表该指示信息中一定携带有I。In the embodiment of the present application, "used for indication" may include being used for direct indication and being used for indirect indication. For example, when describing that a certain indication information is used for indicating information I, it may include that the indication information directly indicates I or indirectly indicates I, but it does not mean that the indication information must carry I.
将指示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有很多种，例如但不限于，可以直接指示待指示信息，如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。同时，还可以识别各个信息的通用部分并统一指示，以降低单独指示同样的信息而带来的指示开销。The information indicated by the indication information is called the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association 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 the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each piece of information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. At the same time, the common parts of each piece of information can also be identified and indicated uniformly to reduce the indication overhead caused by indicating the same information separately.
此外，具体的指示方式还可以是现有各种指示方式，例如但不限于，上述指示方式及其各种组合等。各种指示方式的具体细节可以参考现有技术，本文不再赘述。由上文所述可知，举例来说，当需要指示相同类型的多个信息时，可能会出现不同信息的指示方式不相同的情形。具体实现过程中，可以根据具体的需要选择所需的指示方式，本申请实施例对选择的指示方式不做限定，如此一来，本申请实施例涉及的指示方式应理解为涵盖可以使得待指示方获知待指示信息的各种方法。In addition, the specific indication method can also be various existing indication methods, such as but not limited to the above-mentioned indication methods and various combinations thereof. The specific details of the various indication methods can refer to the prior art and will not be repeated herein. As can be seen from the above, for example, when it is necessary to indicate multiple information of the same type, different indication methods may be used for different information. In the specific implementation process, the desired indication method can be selected according to specific needs. The embodiment of the present application does not limit the selected indication method. In this way, the indication method involved in the embodiment of the present application should be understood to cover various methods that can enable the party to be indicated to obtain the information to be indicated.
下面结合附图对本申请提供的通信方法进行具体说明。The communication method provided by the present application is described in detail below with reference to the accompanying drawings.
本申请实施例提供的一种通信方法，可以应用于图1所示通信***中，为了便于理解，该实施例中从终端设备和网络设备两侧角度进行描述，应理解这不构成对本申请的限制，本申请在终端设备和网络设备任意一侧分别有改进。具体的，该方法可以应用于终端设备和网络设备，或者也可以应用于终端设备和网络设备的芯片或者芯片组/芯片***中，下面以应用于终端设备和网络设备为例进行说明。A communication method provided in an embodiment of the present application can be applied to the communication system shown in FIG1. For ease of understanding, the embodiment is described from the perspectives of both the terminal device and the network device. It should be understood that this does not constitute a limitation on the present application. The present application has improvements on either side of the terminal device and the network device. Specifically, the method can be applied to the terminal device and the network device, or can also be applied to the chip or chipset/chip system of the terminal device and the network device. The following is an example of application to the terminal device and the network device.
如图5所示，本申请实施例提供的通信方法具体可以包括：As shown in FIG. 5 , the communication method provided in the embodiment of the present application may specifically include:
步骤501：网络设备向终端设备发送CSI-RS。Step 501: The network device sends a CSI-RS to the terminal device.
其中，CSI-RS是一种表征下行信道信道状态的参考信号，网络设备向终端设备发送CSI-RS，终端设备可以基于网络设备配置的CSI-RS信号获取下行信道的信道状态信息。Among them, CSI-RS is a reference signal that characterizes the channel state of a downlink channel. The network device sends the CSI-RS to the terminal device, and the terminal device can obtain the channel state information of the downlink channel based on the CSI-RS signal configured by the network device.
步骤502：终端设备根据第一天线集合和第二天线集合接收来自网络设备的CSI-RS；Step 502: The terminal device receives a CSI-RS from a network device according to a first antenna set and a second antenna set;
本申请实施例的终端设备对应M个天线标识，M为大于1的整数。M个天线标识划分为两个天线集合；分别为第一天线集合和第二天线集合，第一天线集合对应M个天线标识中的一部分，第二天线集合对应M个天线标识中的另一部分。第一天线集合对应的天线标识的数目与第二天线集合对应的天线标识的数目相同或不同。The terminal device of the embodiment of the present application corresponds to M antenna identifiers, where M is an integer greater than 1. The M antenna identifiers are divided into two antenna sets; a first antenna set and a second antenna set, respectively. The first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers. The number of antenna identifiers corresponding to the first antenna set is the same as or different from the number of antenna identifiers corresponding to the second antenna set.
可选的，天线标识包括SRS天线端口号、和/或天线个数标号。其中，天线个数标号可以为终端设备的物理天线的标号。Optionally, the antenna identifier includes an SRS antenna port number and/or an antenna number, wherein the antenna number may be a number of a physical antenna of the terminal device.
示例性的，如图6所示的终端设备，终端设备包括8根天线，天线个数标号包括1、2、3、4、5、6、7、8；可以将终端设备的8根天线划分为两个天线集合，第一天线集合包括天线个数标号1、2、3、 4，第二天线集合包括天线个数标号5、6、7、8。For example, as shown in FIG6 , the terminal device includes 8 antennas, and the number of antennas includes 1, 2, 3, 4, 5, 6, 7, and 8; the 8 antennas of the terminal device can be divided into two antenna sets, the first antenna set includes antennas numbered 1, 2, 3, 4. The second antenna set includes antennas numbered 5, 6, 7, and 8.
可选的，终端设备确定第一组信道状态信息参考信号CSI-RS端口和第二组信道状态信息参考信号CSI-RS端口，其中，第一组CSI-RS端口对应第一天线集合和/或第二天线集合，第二组CSI-RS端口对应第一天线集合和第二天线集合。Optionally, the terminal device determines a first group of channel state information reference signal CSI-RS ports and a second group of channel state information reference signal CSI-RS ports, wherein the first group of CSI-RS ports corresponds to the first antenna set and/or the second antenna set, and the second group of CSI-RS ports corresponds to the first antenna set and the second antenna set.
步骤503：终端设备确定CSI集合。Step 503: The terminal device determines a CSI set.
可选的，终端设备确定出的CSI集合中包括第一CSI和第二CSI；其中，第一CSI为第一天线集合对应的CSI，第二CSI为第二天线集合对应的CSI。Optionally, the CSI set determined by the terminal device includes a first CSI and a second CSI; wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set.
下面内容会详细介绍终端设备确定CSI集合的具体方式。The following content will introduce in detail the specific method by which the terminal device determines the CSI set.
步骤504：终端设备向网络设备发送CSI集合。Step 504: The terminal device sends a CSI set to the network device.
终端设备在向网络设备发送CSI集合时，可以采用多种不同的方式发送CSI集合：When a terminal device sends a CSI set to a network device, it can send the CSI set in a variety of different ways:
终端设备通过第一天线集合发送第一CSI，通过第二天线集合发送第二CSI；或者，The terminal device sends the first CSI through the first antenna set and sends the second CSI through the second antenna set; or,
终端通过第一天线集合或第二天线集合发送第一CSI和第二CSI；或者，The terminal sends the first CSI and the second CSI through the first antenna set or the second antenna set; or,
终端通过第一天线集合和第二天线集合均发送第一CSI和第二CSI。The terminal sends the first CSI and the second CSI through both the first antenna set and the second antenna set.
步骤505：网络设备向终端设备发送接收信号，接收信号包括第一天线集合对应的第一接收信号和第二天线集合对应的第二接收信号。Step 505: The network device sends a received signal to the terminal device, where the received signal includes a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set.
本申请实施例在终端设备包括多根天线时，将终端设备的多根天线划分为两个天线集合；终端设备通过两个天线集合分别接收网络设备发送的CSI-RS，并针对每个天线集合分别确定CSI。网络设备基于每个天线集合对应的CSI，向终端设备发送第一天线集合对应的第一接收信号，以及第二天线集合对应的第二接收信号。基于此，本申请实施例提供一种在终端设备包括多根天线时的下行传输方案，可以简化针对多根天线的下行传输流程，并进一步提高***性能。In an embodiment of the present application, when a terminal device includes multiple antennas, the multiple antennas of the terminal device are divided into two antenna sets; the terminal device receives the CSI-RS sent by the network device through the two antenna sets respectively, and determines the CSI for each antenna set respectively. Based on the CSI corresponding to each antenna set, the network device sends a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set to the terminal device. Based on this, an embodiment of the present application provides a downlink transmission scheme when a terminal device includes multiple antennas, which can simplify the downlink transmission process for multiple antennas and further improve system performance.
一种可能的实现方式中，本申请实施例终端设备和网络设备可以基于下列方式确定天线集合的划分方式：In a possible implementation, the terminal device and the network device in the embodiment of the present application may determine the division method of the antenna set based on the following method:
方式1、网络设备向终端设备发送第一指示信息。Method 1: The network device sends first indication information to the terminal device.
其中，第一指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。The first indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
在该种方式下，由网络设备确定天线集合的划分方式，并将天线集合的划分方式通过第一指示信息通知终端设备。In this manner, the network device determines the division method of the antenna set and notifies the terminal device of the division method of the antenna set through the first indication information.
网络设备向终端设备发送的第一指示信息中可以携带第一天线集合对应的天线标识；示例性的，终端设备包括8根天线，终端设备对应的天线个数标号包括1、2、3、4、5、6、7、8，第一指示信息中携带第一天线集合对应的天线个数标号包括1、2、3、4，则终端设备在接收到第一指示信息之后，可以确定第一天线集合对应的天线个数标号包括1、2、3、4，而终端设备对应的全部天线个数标号中除第一天线集合对应的天线个数标号之外的天线个数标号，为第二天线集合对应的天线个数标号，因此，终端设备根据第一指示信息能够确定出第二天线集合对应的天线个数标号。The first indication information sent by the network device to the terminal device may carry the antenna identifier corresponding to the first antenna set; exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8. The first indication information carries the antenna number labels corresponding to the first antenna set, including 1, 2, 3, and 4. Then, after receiving the first indication information, the terminal device can determine that the antenna number labels corresponding to the first antenna set include 1, 2, 3, and 4, and the antenna number labels of all antenna number labels corresponding to the terminal device, except the antenna number label corresponding to the first antenna set, are the antenna number labels corresponding to the second antenna set. Therefore, the terminal device can determine the antenna number label corresponding to the second antenna set according to the first indication information.
或者，网络设备向终端设备发送的第一指示信息中可以携带第二天线集合对应的天线标识；示例性的，终端设备包括8根天线，终端设备对应的天线个数标号包括1、2、3、4、5、6、7、8，第一指示信息中携带第二天线集合对应的天线个数标号包括5、6、7、8，则终端设备在接收到第一指示信息之后，可以确定第二天线集合对应的天线个数标号包括5、6、7、8，而终端设备对应的全部天线个数标号中除第二天线集合对应的天线个数标号之外的天线个数标号，为第一天线集合对应的天线个数标号，因此，终端设备根据第一指示信息能够确定出第一天线集合对应的天线个数标号。Alternatively, the first indication information sent by the network device to the terminal device may carry the antenna identifier corresponding to the second antenna set; exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8. The first indication information carries the antenna number labels corresponding to the second antenna set including 5, 6, 7, and 8. Then, after receiving the first indication information, the terminal device can determine that the antenna number labels corresponding to the second antenna set include 5, 6, 7, and 8, and the antenna number labels of all antenna number labels corresponding to the terminal device except the antenna number label corresponding to the second antenna set are the antenna number labels corresponding to the first antenna set. Therefore, the terminal device can determine the antenna number label corresponding to the first antenna set according to the first indication information.
或者，网络设备向终端设备发送的第一指示信息中可以携带第一天线集合对应的天线标识以及第二天线集合对应的天线标识。示例性的，终端设备包括8根天线，终端设备对应的天线个数标号包括1、2、3、4、5、6、7、8，第一指示信息中携带第一天线集合对应的天线个数标号1、2、3、4，以及第二天线集合对应的天线个数标号5、6、7、8；终端设备可以直接从第一指示信息中确定第一天线集合对应的天线个数标号以及第二天线集合对应的天线个数标号。Alternatively, the first indication information sent by the network device to the terminal device may carry the antenna identifier corresponding to the first antenna set and the antenna identifier corresponding to the second antenna set. Exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8. The first indication information carries the antenna number labels 1, 2, 3, and 4 corresponding to the first antenna set, and the antenna number labels 5, 6, 7, and 8 corresponding to the second antenna set; the terminal device can directly determine the antenna number labels corresponding to the first antenna set and the antenna number labels corresponding to the second antenna set from the first indication information.
可选的，第一指示信息对应于终端设备的通信带宽。Optionally, the first indication information corresponds to the communication bandwidth of the terminal device.
一种可能的实现方式中，网络设备发送的第一指示信息对应于终端设备的整个通信带宽。在整个通信带宽上均采用第一指示信息所指示的天线集合划分方式。网络设备基于该种全带粒度的方式发送第一指示信息，可以减少指示信息量，降低信令开销。In a possible implementation, the first indication information sent by the network device corresponds to the entire communication bandwidth of the terminal device. The antenna set division method indicated by the first indication information is adopted on the entire communication bandwidth. The network device sends the first indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
需要说明的是，网络设备可以在向终端设备发送CSI-RS之前确定天线集合的划分方式。网络 设备可以在向终端设备发送CSI-RS之前向终端设备发送第一指示信息，或者，网络设备可以在向终端设备发送CSI-RS之后向终端设备发送第一指示信息，或者，网络设备同时向终端发送CSI-RS和第一指示信息，从而将天线集合的划分方式通知终端设备。It should be noted that the network device may determine the division method of the antenna set before sending the CSI-RS to the terminal device. The device may send the first indication information to the terminal device before sending the CSI-RS to the terminal device, or the network device may send the first indication information to the terminal device after sending the CSI-RS to the terminal device, or the network device may send the CSI-RS and the first indication information to the terminal at the same time, thereby notifying the terminal device of the division method of the antenna set.
方式2、终端设备向网络设备发送第二指示信息。Method 2: The terminal device sends the second indication information to the network device.
其中，第二指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。The second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
在该种方式下，由终端设备确定天线集合的划分方式，并将天线集合的划分方式通过第二指示信息通知网络设备。In this manner, the terminal device determines the division method of the antenna set and notifies the network device of the division method of the antenna set through the second indication information.
终端设备向网络设备发送的第二指示信息中可以携带第一天线集合对应的天线标识；示例性的，终端设备包括8根天线，终端设备对应的天线个数标号包括1、2、3、4、5、6、7、8，第二指示信息中携带第一天线集合对应的天线个数标号包括1、2、3、4，则网络设备在接收到第二指示信息之后，可以确定第一天线集合对应的天线个数标号包括1、2、3、4，而终端设备对应的全部天线个数标号中除第一天线集合对应的天线个数标号之外的天线个数标号，为第二天线集合对应的天线个数标号，因此，网络设备根据第一指示信息能够确定出第二天线集合对应的天线个数标号。The second indication information sent by the terminal device to the network device may carry the antenna identifier corresponding to the first antenna set; exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8. The second indication information carries the antenna number labels corresponding to the first antenna set, including 1, 2, 3, and 4. After receiving the second indication information, the network device can determine that the antenna number labels corresponding to the first antenna set include 1, 2, 3, and 4, and the antenna number labels of all antenna number labels corresponding to the terminal device, except the antenna number label corresponding to the first antenna set, are the antenna number labels corresponding to the second antenna set. Therefore, the network device can determine the antenna number label corresponding to the second antenna set based on the first indication information.
或者，终端设备向网络设备发送的第二指示信息中可以携带第二天线集合对应的天线标识；示例性的，终端设备包括8根天线，终端设备对应的天线个数标号包括1、2、3、4、5、6、7、8，第二指示信息中携带第二天线集合对应的天线个数标号包括5、6、7、8，则网络设备在接收到第二指示信息之后，可以确定第二天线集合对应的天线个数标号包括5、6、7、8，而终端设备对应的全部天线个数标号中除第二天线集合对应的天线个数标号之外的天线个数标号，为第一天线集合对应的天线个数标号，因此，网络设备根据第二指示信息能够确定出第一天线集合对应的天线个数标号。Alternatively, the second indication information sent by the terminal device to the network device may carry the antenna identifier corresponding to the second antenna set; exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8. The second indication information carries the antenna number labels corresponding to the second antenna set including 5, 6, 7, and 8. After receiving the second indication information, the network device can determine that the antenna number labels corresponding to the second antenna set include 5, 6, 7, and 8, and the antenna number labels of all antenna number labels corresponding to the terminal device except the antenna number label corresponding to the second antenna set are the antenna number labels corresponding to the first antenna set. Therefore, the network device can determine the antenna number label corresponding to the first antenna set based on the second indication information.
或者，终端设备向网络设备发送的第二指示信息中可以携带第一天线集合对应的天线标识以及第二天线集合对应的天线标识。示例性的，终端设备包括8根天线，终端设备对应的天线个数标号包括1、2、3、4、5、6、7、8，第二指示信息中携带第一天线集合对应的天线个数标号1、2、3、4，以及第二天线集合对应的天线个数标号5、6、7、8；网络设备可以直接从第一指示信息中确定第一天线集合对应的天线个数标号以及第二天线集合对应的天线个数标号。Alternatively, the second indication information sent by the terminal device to the network device may carry the antenna identifier corresponding to the first antenna set and the antenna identifier corresponding to the second antenna set. Exemplarily, the terminal device includes 8 antennas, and the antenna number labels corresponding to the terminal device include 1, 2, 3, 4, 5, 6, 7, and 8. The second indication information carries the antenna number labels 1, 2, 3, and 4 corresponding to the first antenna set, and the antenna number labels 5, 6, 7, and 8 corresponding to the second antenna set; the network device can directly determine the antenna number labels corresponding to the first antenna set and the antenna number labels corresponding to the second antenna set from the first indication information.
可选的，第二指示信息对应于终端设备的通信带宽。Optionally, the second indication information corresponds to the communication bandwidth of the terminal device.
实施中，终端设备发送的第二指示信息对应于终端设备的整个通信带宽。在整个通信带宽上均采用第二指示信息所指示的天线集合划分方式。终端设备基于该种全带粒度的方式发送第二指示信息，可以减少指示信息量，降低信令开销。In implementation, the second indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device. The antenna set division method indicated by the second indication information is adopted on the entire communication bandwidth. The terminal device sends the second indication information based on this full-band granularity method, which can reduce the amount of indication information and reduce signaling overhead.
需要说明的是，终端设备可以在接收到网络设备发送的CSI-RS之前，向网络设备发送第二指示信息，或者，终端设备还可以在接收到网络设备发送的CSI-RS之后，确定天线集合的划分方式，并向网络设备发送第二指示信息，从而将天线集合的划分方式通知网络设备。It should be noted that the terminal device may send the second indication information to the network device before receiving the CSI-RS sent by the network device, or the terminal device may determine the division method of the antenna set after receiving the CSI-RS sent by the network device, and send the second indication information to the network device, thereby notifying the network device of the division method of the antenna set.
方式3、预先定义天线集合的划分方式。Method 3: pre-define the division method of the antenna set.
在该种方式下，终端设备的天线集合的划分方式是预先定义的，终端设备和网络设备根据预先定义，确定终端设备的多根天线对应的天线集合划分方式。In this manner, the division method of the antenna set of the terminal device is predefined, and the terminal device and the network device determine the division method of the antenna set corresponding to the multiple antennas of the terminal device based on the predefined method.
示例性的，预先定义天线集合的划分方式具体可以为，通过协议约定的方式，预先定义天线集合的划分方式。终端设备和网络设备可以基于协议约定，获得统一天线集合的划分方式。比如，协议约定将终端设备的多根天线划分为两个天线集合，每个天线集合中包括相同的天线个数，且按照天线个数标号顺序进行划分；基于此协议约定，在终端设备包括8根天线时，终端设备和网络设备根据协议约定，确定第一天线集合包括天线个数标号为1、2、3、4的天线，第二天线集合包括天线个数标号为5、6、7、8的天线。Exemplarily, the division method of the predefined antenna set may be specifically to predefine the division method of the antenna set by means of a protocol agreement. The terminal device and the network device may obtain a unified division method of the antenna set based on the protocol agreement. For example, the protocol agrees to divide the multiple antennas of the terminal device into two antenna sets, each antenna set includes the same number of antennas, and the division is performed in the order of the number of antennas; based on this protocol agreement, when the terminal device includes 8 antennas, the terminal device and the network device determine, according to the protocol agreement, that the first antenna set includes antennas with antenna numbers of 1, 2, 3, and 4, and the second antenna set includes antennas with antenna numbers of 5, 6, 7, and 8.
一种可选的实施方式为，在步骤501之前，终端设备向网络设备发送第一SRS和第二SRS。An optional implementation manner is that before step 501, the terminal device sends the first SRS and the second SRS to the network device.
其中，第一SRS与第一天线集合对应，第二SRS与第二天线集合对应。实施中，终端设备可以通过第一天线集合向网络设备发送第一SRS，以及通过第二天线集合向网络设备发送第二SRS。The first SRS corresponds to the first antenna set, and the second SRS corresponds to the second antenna set. In implementation, the terminal device may send the first SRS to the network device via the first antenna set, and send the second SRS to the network device via the second antenna set.
相应的，网络设备在接收到终端设备发送的第一SRS和第二SRS之后，可以获取到终端设备与网络设备之间的上行信道信息。示例性的，网络设备根据接收到的第一SRS可以获取终端设备的第一天线集合与网络设备之间的上行信道信息；网络设备根据接收到的第二SRS可以获取终端设备的第二天线集合与网络设备之间的上行信道信息。Correspondingly, after receiving the first SRS and the second SRS sent by the terminal device, the network device can obtain the uplink channel information between the terminal device and the network device. Exemplarily, the network device can obtain the uplink channel information between the first antenna set of the terminal device and the network device based on the received first SRS; the network device can obtain the uplink channel information between the second antenna set of the terminal device and the network device based on the received second SRS.
可选的，本申请实施例的通信***为TDD***，网络设备还可以基于信道互异性，对接收到的第 一SRS和第二SRS进行测量，得到网络设备与终端设备之间的下行信道信息。示例性的，网络设备基于信道互异性，对接收到的第一SRS进行测量，得到网络设备与终端设备的第一天线集合之间的下行信道信息；网络设备基于信道互异性，对接收到的第二SRS进行测量，得到网络设备与终端设备的第二天线集合之间的下行信道信息。Optionally, the communication system of the embodiment of the present application is a TDD system, and the network device may also receive the received The first SRS and the second SRS are measured to obtain the downlink channel information between the network device and the terminal device. Exemplarily, the network device measures the received first SRS based on channel reciprocity to obtain the downlink channel information between the network device and the first antenna set of the terminal device; the network device measures the received second SRS based on channel reciprocity to obtain the downlink channel information between the network device and the second antenna set of the terminal device.
在步骤503中，终端设备通过第一天线集合和第二天线集合分别接收网络设备发送的CSI-RS。终端设备对第一天线集合接收到的CSI-RS进行测量，得到第一天线集合对应的信道测量结果，从而获得网络设备与终端设备的第一天线集合之间的下行信道状态信息；终端设备对第二天线集合接收到的CSI-RS进行测量，第一天线集合对应的信道测量结果，从而获得网络设备与终端设备的第二天线集合之间的下行信道状态信息。In step 503, the terminal device receives the CSI-RS sent by the network device through the first antenna set and the second antenna set respectively. The terminal device measures the CSI-RS received by the first antenna set, obtains the channel measurement result corresponding to the first antenna set, and thus obtains the downlink channel state information between the network device and the first antenna set of the terminal device; the terminal device measures the CSI-RS received by the second antenna set, obtains the channel measurement result corresponding to the first antenna set, and thus obtains the downlink channel state information between the network device and the second antenna set of the terminal device.
本申请实施例终端设备在接收到CSI-RS之后，确定CSI集合。After receiving the CSI-RS, the terminal device in the embodiment of the present application determines the CSI set.
其中，第一CSI包括但不限于第一CQI和第一秩指示信息，第二CSI包括但不限于第二CQI和第二秩指示信息。The first CSI includes but is not limited to the first CQI and the first rank indication information, and the second CSI includes but is not limited to the second CQI and the second rank indication information.
下面介绍下CSI中的CQI的确定方式。具体的，介绍终端设备确定第一CSI中第一CQI和第二CSI中的第二CQI的方式。The following describes a method for determining the CQI in the CSI. Specifically, the following describes a method for a terminal device to determine a first CQI in a first CSI and a second CQI in a second CSI.
可选的，第一CSI中第一CQI的确定方式，与第二CSI中第二CQI的确定方式可以相同或不同。Optionally, a manner of determining the first CQI in the first CSI may be the same as or different from a manner of determining the second CQI in the second CSI.
本申请实施例可以通过如下多种方法获取CQI的确定方式：In the embodiment of the present application, the determination method of CQI can be obtained by the following methods:
方法1、第一CSI和/或第二CSI中的CQI的确定方式是预先定义的。Method 1: The method for determining the CQI in the first CSI and/or the second CSI is predefined.
在该种方式下，第一CSI和/或第二CSI中的CQI的确定方式是预先定义的，终端设备和网络设备根据预先定义，确定第一CSI和/或第二CSI中的CQI的确定方式。In this manner, a method for determining the CQI in the first CSI and/or the second CSI is predefined, and the terminal device and the network device determine the method for determining the CQI in the first CSI and/or the second CSI based on the predefined method.
示例性的，预先定义第一CSI和/或第二CSI中的CQI的确定方式具体可以为，通过协议约定的方式，预先定义第一CSI和/或第二CSI中的CQI的确定方式。终端设备和网络设备可以基于协议约定，获得统一的第一CSI和/或第二CSI中的CQI的确定方式。Exemplarily, the method for determining the CQI in the first CSI and/or the second CSI may be predefined by way of protocol agreement. The terminal device and the network device may obtain a unified method for determining the CQI in the first CSI and/or the second CSI based on the protocol agreement.
方法2、网络设备向终端设备发送第三指示信息，第三指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式。Method 2: The network device sends third indication information to the terminal device, where the third indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI.
在该种方式下，由网络设备确定第一CSI和/或第二CSI中的CQI的确定方式，并将第一CSI和/或第二CSI中的CQI的确定方式通知终端设备。In this manner, the network device determines a method for determining the CQI in the first CSI and/or the second CSI, and notifies the terminal device of the method for determining the CQI in the first CSI and/or the second CSI.
一种可能的实现方式中，在网络设备将第一CSI和第二CSI中的CQI的确定方式通知终端设备时，若第一CSI中CQI的确定方式与第二CSI中CQI的确定方式不同，则第三指示信息中携带第一CSI中CQI的确定方式和第二CSI中CQI的确定方式；若第一CSI中CQI的确定方式与第二CSI中CQI的确定方式相同，则第三指示信息中可以携带任一个CSI中CQI的确定方式。In one possible implementation, when the network device notifies the terminal device of the method for determining the CQI in the first CSI and the second CSI, if the method for determining the CQI in the first CSI is different from the method for determining the CQI in the second CSI, the third indication information carries the method for determining the CQI in the first CSI and the method for determining the CQI in the second CSI; if the method for determining the CQI in the first CSI is the same as the method for determining the CQI in the second CSI, the third indication information may carry the method for determining the CQI in either CSI.
方法3、终端设备向网络设备发送第四指示信息，第四指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式。Method 3: The terminal device sends fourth indication information to the network device, where the fourth indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI.
在该种方式下，由终端设备确定第一CSI和/或第二CSI中的CQI的确定方式，并将第一CSI和/或第二CSI中的CQI的确定方式通知网络设备。In this manner, the terminal device determines a method for determining the CQI in the first CSI and/or the second CSI, and notifies the network device of the method for determining the CQI in the first CSI and/or the second CSI.
一种可能的实现方式中，在终端设备将第一CSI和第二CSI中的CQI的确定方式通知网络设备时，若第一CSI中CQI的确定方式与第二CSI中CQI的确定方式不同，则第四指示信息中携带第一CSI中CQI的确定方式和第二CSI中CQI的确定方式；若第一CSI中CQI的确定方式与第二CSI中CQI的确定方式相同，则第四指示信息中可以携带任一个CSI中CQI的确定方式。In one possible implementation, when the terminal device notifies the network device of the method for determining the CQI in the first CSI and the second CSI, if the method for determining the CQI in the first CSI is different from the method for determining the CQI in the second CSI, the fourth indication information carries the method for determining the CQI in the first CSI and the method for determining the CQI in the second CSI; if the method for determining the CQI in the first CSI is the same as the method for determining the CQI in the second CSI, the fourth indication information may carry the method for determining the CQI in either CSI.
基于上述任一种方式，终端设备根据第一CSI中CQI的确定方式，确定第一CSI中的第一CQI；终端设备根据第二CSI中CQI的确定方式，确定第二CSI中的第二CQI。Based on any of the above methods, the terminal device determines the first CQI in the first CSI according to the method for determining the CQI in the first CSI; the terminal device determines the second CQI in the second CSI according to the method for determining the CQI in the second CSI.
下面介绍下CSI中的秩指示信息的确定方式。具体的，介绍终端设备确定第一CSI中第一秩指示信息和第二CSI中的第二秩指示信息的方式。The following describes a method for determining the rank indication information in the CSI. Specifically, the following describes a method for a terminal device to determine the first rank indication information in the first CSI and the second rank indication information in the second CSI.
可选的，第一CSI中的第一秩指示信息是由第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果确定的；第二CSI中的第二秩指示信息是由第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果确定的；其中，第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果是根据CSI-RS确定的。Optionally, the first rank indication information in the first CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; the second rank indication information in the second CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; wherein the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set are determined based on CSI-RS.
一种可能的实现方式中，终端设备可以基于下面流程，确定第一CSI中第一秩指示信息和第二CSI中的第二秩指示信息： In a possible implementation manner, the terminal device may determine the first rank indication information in the first CSI and the second rank indication information in the second CSI based on the following process:
A1：终端设备对通过第一天线集合接收到的CSI-RS进行测量，得到第一天线集合对应的信道测量结果；以及终端设备对通过第二天线集合接收到的CSI-RS进行测量，得到第二天线集合对应的信道测量结果。A1: The terminal device measures the CSI-RS received through the first antenna set to obtain a channel measurement result corresponding to the first antenna set; and the terminal device measures the CSI-RS received through the second antenna set to obtain a channel measurement result corresponding to the second antenna set.
A2：终端设备根据第一天线集合对应的信道测量结果以及第二天线集合对应的信道测量结果，生成网络设备与终端设备之间的下行信道的信道状态矩阵；A2: The terminal device generates a channel state matrix of a downlink channel between the network device and the terminal device according to the channel measurement result corresponding to the first antenna set and the channel measurement result corresponding to the second antenna set;
示例性的，若根据第一天线集合对应的信道测量结果，确定第一天线集合对应的信道状态矩阵为H1，根据第二天线集合对应的信道测量结果，确定第二天线集合对应的信道状态矩阵为H2；则根据第一天线集合对应的信道状态矩阵为H1和第二天线集合对应的信道状态矩阵为H2，构造网络设备与终端设备之间的下行信道的信道状态矩阵H。Exemplarily, if according to the channel measurement results corresponding to the first antenna set, the channel state matrix corresponding to the first antenna set is determined to be H1 , and according to the channel measurement results corresponding to the second antenna set, the channel state matrix corresponding to the second antenna set is determined to be H2 ; then according to the channel state matrix corresponding to the first antenna set is H1 and the channel state matrix corresponding to the second antenna set is H2 , the channel state matrix H of the downlink channel between the network device and the terminal device is constructed.
一种可选的实施方式为，若根据第一天线集合对应的信道测量结果以及第二天线集合对应的信道测量结果，确定第一天线集合对应的信道质量优于第二天线集合对应的信道质量，则在构造网络设备与终端设备之间的下行信道的信道状态矩阵H时，将第一天线集合对应的信道状态矩阵为H1靠前排序。An optional implementation is that if, based on the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set, it is determined that the channel quality corresponding to the first antenna set is better than the channel quality corresponding to the second antenna set, then when constructing the channel state matrix H of the downlink channel between the network device and the terminal device, the channel state matrix corresponding to the first antenna set is sorted H1 in the front.
实施中，天线集合对应的信道质量可以通过天线集合对应的码字的调制阶数表示；示例性的，第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数，则表示第一天线集合对应的信道质量优于第二天线集合对应的信道质量；第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数，则表示第二天线集合对应的信道质量优于第一天线集合对应的信道质量。During implementation, the channel quality corresponding to the antenna set can be represented by the modulation order of the codeword corresponding to the antenna set; exemplarily, if the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, it means that the channel quality corresponding to the first antenna set is better than the channel quality corresponding to the second antenna set; if the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, it means that the channel quality corresponding to the second antenna set is better than the channel quality corresponding to the first antenna set.
例如，网络设备包括64根天线，终端设备包括8根天线，终端设备的第一天线集合包括天线个数标号1、2、3、4，终端设备的第二天线集合包括天线个数标号5、6、7、8。终端设备对通过第一天线集合接收到的CSI-RS进行测量，得到的第一天线集合对应的信道状态矩阵H1为4*64的矩阵；终端设备对通过第二天线集合接收到的CSI-RS进行测量，得到的第二天线集合对应的信道状态矩阵H2为4*64的矩阵。在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数的情况下，构造的网络设备与终端设备之间的下行信道的信道状态矩阵H为：
For example, the network device includes 64 antennas, the terminal device includes 8 antennas, the first antenna set of the terminal device includes antenna numbers 1, 2, 3, and 4, and the second antenna set of the terminal device includes antenna numbers 5, 6, 7, and 8. The terminal device measures the CSI-RS received through the first antenna set, and the channel state matrix H1 corresponding to the first antenna set obtained is a 4*64 matrix; the terminal device measures the CSI-RS received through the second antenna set, and the channel state matrix H2 corresponding to the second antenna set obtained is a 4*64 matrix. When the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the channel state matrix H of the downlink channel between the constructed network device and the terminal device is:
A3：终端设备基于确定出的信道状态矩阵，确定第一CSI中第一秩指示信息和第二CSI中第二秩指示信息。A3: The terminal device determines first rank indication information in the first CSI and second rank indication information in the second CSI based on the determined channel state matrix.
下面介绍下基于信道状态矩阵，确定第一CSI中第一秩指示信息和第二CSI中第二秩指示信息的过程：The following describes a process of determining the first rank indication information in the first CSI and the second rank indication information in the second CSI based on the channel state matrix:
将网络设备与终端设备之间的下行信道的信道状态矩阵H进行共轭转置处理，并对共轭转置之后的矩阵HH进行QR分解，如下列公式所示：
[Q,R]＝qr(HH)The channel state matrix H of the downlink channel between the network device and the terminal device is conjugate transposed, and the matrix H H after the conjugate transposition is QR decomposed, as shown in the following formula:
[Q,R]＝qr(H H )
基于上述公式，分解得到R矩阵和Q矩阵；其中R矩阵为上三角矩阵，Q矩阵为酉阵。Based on the above formula, the R matrix and Q matrix are decomposed; the R matrix is an upper triangular matrix and the Q matrix is a unitary matrix.
如图7所示的矩阵QR分解过程，假设矩阵HH为m*n的矩阵，则经QR分解得到m*m的Q矩阵和m*n的R矩阵。As shown in FIG7 , the matrix QR decomposition process, assuming that the matrix H H is an m*n matrix, then the m*m Q matrix and the m*n R matrix are obtained through QR decomposition.
在得到R矩阵之后，对R矩阵进行共轭转置，得到下三角矩阵RH。After obtaining the R matrix, conjugate transpose is performed on the R matrix to obtain a lower triangular matrix RH .
本申请实施例将下三角矩阵RH对角线上元素的模称为等效信道条件数，下三角矩阵RH对角线上元素的模的大小用于表征终端设备的各个天线的信道质量。In the embodiment of the present application, the modulus of the elements on the diagonal of the lower triangular matrix RH is called the equivalent channel condition number, and the size of the modulus of the elements on the diagonal of the lower triangular matrix RH is used to characterize the channel quality of each antenna of the terminal device.
终端设备根据等效信道条件数，分别确定第一CSI中的第一秩指示信息和第二CSI中的第二秩指示信息。The terminal device determines the first rank indication information in the first CSI and the second rank indication information in the second CSI respectively according to the equivalent channel condition number.
一种可能的实现方式中，终端设备根据总传输流数，从多个等效信道条件数中按照从大到小的方式，选取与总传输流数相同的等效信道条件数，根据选取出的等效信道条件数所对应的天线标识，确定第一CSI中的第一秩指示信息和第二CSI中的第二秩指示信息。In one possible implementation, the terminal device selects an equivalent channel condition number that is the same as the total number of transmission streams from multiple equivalent channel condition numbers in a descending order based on the total number of transmission streams, and determines the first rank indication information in the first CSI and the second rank indication information in the second CSI based on the antenna identifier corresponding to the selected equivalent channel condition number.
假设终端设备包括8根天线，网络设备包括64根天线，终端设备对应的第一天线集合包括天线个数标号1、2、3、4，终端设备对应的第二天线集合包括天线个数标号5、6、7、8。且网络设备与第一天线集合之间的信道质量优于网络设备与第二天线集合之间的信道质量。对网络设备与终端设备之间的信道状态矩阵H进行共轭转置之后的矩阵HH，进行QR分解得到的R矩阵，并对R矩阵进行共轭转置，得到的矩阵RH可以如图8所示，矩阵RH的对角线上的元素分别对应一个终端设备的天线；其中对角线上第一列元素9对应于终端设备的天线个数标号1，对角线上第二列元素8对应于终端设备的天线个数 标号2，对角线上第三列元素4对应于终端设备的天线个数标号3，对角线上第四列元素1对应于终端设备的天线个数标号4，对角线上第五列元素7对应于终端设备的天线个数标号5，对角线上第六列元素6对应于终端设备的天线个数标号6，对角线上第七列元素5对应于终端设备的天线个数标号7，对角线上第八列元素2对应于终端设备的天线个数标号8。Assume that the terminal device includes 8 antennas, the network device includes 64 antennas, the first antenna set corresponding to the terminal device includes antenna numbers 1, 2, 3, and 4, and the second antenna set corresponding to the terminal device includes antenna numbers 5, 6, 7, and 8. And the channel quality between the network device and the first antenna set is better than the channel quality between the network device and the second antenna set. The matrix H H obtained by conjugate transposing the channel state matrix H between the network device and the terminal device, performing QR decomposition on the R matrix, and conjugate transposing the R matrix, the obtained matrix RH can be shown in Figure 8, where the elements on the diagonal of the matrix RH correspond to an antenna of the terminal device respectively; wherein the element 9 in the first column on the diagonal corresponds to the antenna number 1 of the terminal device, and the element 8 in the second column on the diagonal corresponds to the antenna number of the terminal device. Number 2, the element 4 in the third column on the diagonal corresponds to the number of antennas of the terminal device number 3, the element 1 in the fourth column on the diagonal corresponds to the number of antennas of the terminal device number 4, the element 7 in the fifth column on the diagonal corresponds to the number of antennas of the terminal device number 5, the element 6 in the sixth column on the diagonal corresponds to the number of antennas of the terminal device number 6, the element 5 in the seventh column on the diagonal corresponds to the number of antennas of the terminal device number 7, and the element 2 in the eighth column on the diagonal corresponds to the number of antennas of the terminal device number 8.
终端设备根据总传输流数N以及下三角矩阵RH对角线上的元素，确定第一CSI中的第一秩指示信息和第二CSI中的第二秩指示信息。假设总传输流数N为5，则从下三角矩阵RH对角线上的元素中选取模值较大的5个元素，如图8所示的下三角矩阵RH，模值较大的5个元素分别为9、8、7、6、5，且较大的5个元素中9、8对应于第一天线集合，7、6、5对应于第二天线集合，则确定第一天线集合对应的第一CSI中的第一秩指示信息为2，第一天线集合对应的第一CSI中的第一秩指示信息为3。The terminal device determines the first rank indication information in the first CSI and the second rank indication information in the second CSI according to the total number of transmission streams N and the elements on the diagonal of the lower triangular matrix RH . Assuming that the total number of transmission streams N is 5, 5 elements with larger modulus values are selected from the elements on the diagonal of the lower triangular matrix RH . For the lower triangular matrix RH shown in FIG8 , the 5 elements with larger modulus values are 9, 8, 7, 6, and 5, respectively. Among the 5 larger elements, 9 and 8 correspond to the first antenna set, and 7, 6, and 5 correspond to the second antenna set. Therefore, it is determined that the first rank indication information in the first CSI corresponding to the first antenna set is 2, and the first rank indication information in the first CSI corresponding to the first antenna set is 3.
一种可选的实施方式为，针对TDD通信***，终端设备向网络设备反馈的CSI中包括CQI和秩指示信息；其中，第一CSI中的第一秩指示信息和第一CQI，以及第二CSI中的第二秩指示信息和第二CQI可以基于上述方式确定。An optional implementation is that, for a TDD communication system, the CSI that the terminal device feeds back to the network device includes CQI and rank indication information; wherein, the first rank indication information and the first CQI in the first CSI, and the second rank indication information and the second CQI in the second CSI can be determined based on the above method.
针对频分双工(frequency division duplexing，FDD)通信***，终端设备向网络设备反馈的CSI中包括CQI、秩指示信息和预编码矩阵指示符(precoding matrix indicator，PMI)；其中，第一CSI中的第一秩指示信息和第一CQI，以及第二CSI中的第二秩指示信息和第二CQI可以基于上述方式确定；第一CSI中的PMI和第二CSI中的PMI的确定方式下面具体介绍。For a frequency division duplexing (FDD) communication system, the CSI that the terminal device feeds back to the network device includes CQI, rank indication information and precoding matrix indicator (PMI); wherein, the first rank indication information and the first CQI in the first CSI, and the second rank indication information and the second CQI in the second CSI can be determined based on the above method; the method for determining the PMI in the first CSI and the PMI in the second CSI is specifically introduced below.
一种可选的实施方式为，终端设备根据总传输流数，从多个等效信道条件数中按照从大到小的方式，选取与总传输流数相同的等效信道条件数，根据选取出的等效信道条件数在下三角矩阵RH中的位置，从酉阵Q中确定第一天线集合对应的PMI和第二天线集合对应的PMI。An optional implementation is that the terminal device selects an equivalent channel condition number that is the same as the total number of transmission streams from multiple equivalent channel condition numbers in a descending order according to the total number of transmission streams, and determines the PMI corresponding to the first antenna set and the PMI corresponding to the second antenna set from the unitary array Q according to the position of the selected equivalent channel condition number in the lower triangular matrix RH .
如图8所示的下三角矩阵RH，假设总传输流数N为5，终端设备选取出的模值较大的5个元素分别为9、8、7、6、5，分别位于下三角矩阵RH中的第一列、第二列、第五列、第六列和第七列。终端设备在确定第一天线集合对应的PMI时，将酉阵Q的第一列向量和第二列向量组成第一天线集合对应的PMI，以及在确定第二天线集合对应的PMI时，将酉阵Q的第五列向量、第六列向量和第七列向量组成第二天线集合对应的PMI。As shown in the lower triangular matrix RH of FIG8 , assuming that the total number of transmission streams N is 5, the five elements with larger modulus values selected by the terminal device are 9, 8, 7, 6, and 5, which are respectively located in the first column, the second column, the fifth column, the sixth column, and the seventh column of the lower triangular matrix RH . When determining the PMI corresponding to the first antenna set, the terminal device uses the first column vector and the second column vector of the unitary array Q to form the PMI corresponding to the first antenna set, and when determining the PMI corresponding to the second antenna set, uses the fifth column vector, the sixth column vector, and the seventh column vector of the unitary array Q to form the PMI corresponding to the second antenna set.
另外，本申请实施例终端设备还可以采用联合确定的方式，确定第一天线集合对应的第一秩指示信息和PMI，以及第二天线集合对应的第二秩指示信息和PMI。In addition, the terminal device of the embodiment of the present application may also adopt a joint determination method to determine the first rank indication information and PMI corresponding to the first antenna set, and the second rank indication information and PMI corresponding to the second antenna set.
一种可选的实施方式为，终端设备可以基于下列公式联合确定第一天线集合对应的第一秩指示信息和PMI，以及第二天线集合对应的第二秩指示信息和PMI：
In an optional implementation manner, the terminal device may jointly determine the first rank indication information and the PMI corresponding to the first antenna set, and the second rank indication information and the PMI corresponding to the second antenna set based on the following formula:
其中，RI1为第一天线集合对应的第一秩指示信息，RI2为第二天线集合对应的第二秩指示信息，H1为第一天线集合对应的信道状态矩阵，H2为第二天线集合对应的信道状态矩阵，表示由RI1个较大的等效信道条件数对应的酉阵Q的列向量构成的PMI(即为第一天线集合对应的PMI)，表示由RI2个较大的等效信道条件数对应的酉阵Q的列向量构成的PMI(即为第二天线集合对应的PMI)，β为表示干扰的系数，σ2为噪声功率。Among them, RI 1 is the first rank indication information corresponding to the first antenna set, RI 2 is the second rank indication information corresponding to the second antenna set, H 1 is the channel state matrix corresponding to the first antenna set, H 2 is the channel state matrix corresponding to the second antenna set, represents the PMI composed of the column vector of the unitary matrix Q corresponding to RI 1 larger equivalent channel condition number (that is, the PMI corresponding to the first antenna set), represents the PMI composed of the column vector of the unitary matrix Q corresponding to RI 2 larger equivalent channel condition numbers (that is, the PMI corresponding to the second antenna set), β is the coefficient representing interference, and σ 2 is the noise power.
针对FDD***，终端设备在基于上述方式得到第一天线集合对应的PMI、第一秩指示信息和第一CQI后，得到第一CSI；在基于上述方式得到第二天线集合对应的PMI、第二秩指示信息和第二CQI后，得到第二CSI。根据第一CSI和第二CSI生成CSI集合。For the FDD system, after obtaining the PMI, the first rank indication information and the first CQI corresponding to the first antenna set based on the above method, the terminal device obtains the first CSI; after obtaining the PMI, the second rank indication information and the second CQI corresponding to the second antenna set based on the above method, the terminal device obtains the second CSI. A CSI set is generated according to the first CSI and the second CSI.
针对TDD通信***，终端设备在确定出第一秩指示信息和第一CQI后，得到第一CSI；在确定出第二秩指示信息和第二CQI后，得到第二CSI。根据第一CSI和第二CSI生成CSI集合。For a TDD communication system, after determining the first rank indication information and the first CQI, the terminal device obtains the first CSI, and after determining the second rank indication information and the second CQI, obtains the second CSI. A CSI set is generated according to the first CSI and the second CSI.
终端设备生成CSI集合之后，向网络设备发送CSI集合。终端设备可以采用多种不同的方式发送CSI集合：After the terminal device generates the CSI set, it sends the CSI set to the network device. The terminal device can send the CSI set in a variety of different ways:
终端设备通过第一天线集合发送第一CSI，通过第二天线集合发送第二CSI；或者，The terminal device sends the first CSI through the first antenna set and sends the second CSI through the second antenna set; or,
终端通过第一天线集合或第二天线集合发送第一CSI和第二CSI；或者，The terminal sends the first CSI and the second CSI through the first antenna set or the second antenna set; or,
终端通过第一天线集合和第二天线集合均发送第一CSI和第二CSI。The terminal sends the first CSI and the second CSI through both the first antenna set and the second antenna set.
网络设备在接收到终端设备发送的CSI集合之后，根据CSI集合确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。After receiving the CSI set sent by the terminal device, the network device determines a first precoding matrix corresponding to the first antenna set and a second precoding matrix corresponding to the second antenna set according to the CSI set.
在一些可能的实施方式中，针对FDD通信***，终端设备发送的CSI集合中包括第一天线集合对 应的PMI和第二天线集合对应的PMI，则网络设备从CSI集合中获取第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。In some possible implementations, for an FDD communication system, the CSI set sent by the terminal device includes the first antenna set pair If the network device obtains the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set from the CSI set, the network device obtains the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set from the CSI set.
针对TDD通信***，网络设备根据终端设备发送的CSI集合中的秩指示信息，确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。For a TDD communication system, the network device determines a first precoding matrix corresponding to a first antenna set and a second precoding matrix corresponding to a second antenna set according to rank indication information in a CSI set sent by a terminal device.
实施中，网络设备可以基于预先定义的预编码矩阵确定方式，根据CSI集合中的秩指示信息，确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵；示例性的，预先定义的预编码矩阵确定方式具体可以是基于协议约定的方式，网络设备基于协议约定的方式以及CSI集合中的秩指示信息，确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。或者，网络设备可以根据终端设备发送的第五指示信息，以及CSI集合中的秩指示信息，确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。In implementation, the network device may determine the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set based on the predefined precoding matrix determination method and the rank indication information in the CSI set; exemplary, the predefined precoding matrix determination method may be based on a protocol agreed method, and the network device may determine the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set based on the protocol agreed method and the rank indication information in the CSI set. Alternatively, the network device may determine the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set based on the fifth indication information sent by the terminal device and the rank indication information in the CSI set.
下面针对两种不同的确定第一预编码矩阵和第二预编码矩阵的方式分别进行说明：Two different methods for determining the first precoding matrix and the second precoding matrix are described below:
确定方式1、网络设备基于预先定义的预编码矩阵确定方式，根据CSI集合中的秩指示信息，确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。Determination method 1: The network device determines a first precoding matrix corresponding to the first antenna set and a second precoding matrix corresponding to the second antenna set based on a predefined precoding matrix determination method and according to rank indication information in the CSI set.
网络设备对终端设备发送的第一SRS和第二SRS进行测量，确定网络设备与终端设备的第一天线集合之间的下行信道信息以及网络设备与终端设备的第二天线集合之间的下行信道信息；示例性的，网络设备可以确定出网络设备与第一天线集合之间的信道状态矩阵为H1，以及网络设备与第二天线集合之间的信道状态矩阵为H2。The network device measures the first SRS and the second SRS sent by the terminal device to determine the downlink channel information between the network device and the first antenna set of the terminal device and the downlink channel information between the network device and the second antenna set of the terminal device; illustratively, the network device can determine that the channel state matrix between the network device and the first antenna set is H 1 , and the channel state matrix between the network device and the second antenna set is H 2 .
一种可选的实施方式为，若通过对终端设备发送的第一SRS和第二SRS进行测量，确定网络设备与终端设备的第一天线集合之间的下行信道的信道质量，优于网络设备与终端设备的第二天线集合之间的下行信道的信道质量，则在构造网络设备与终端设备之间的下行信道的信道状态矩阵H时，将第一天线集合对应的信道状态矩阵为H1靠前排序。An optional implementation is that if the channel quality of the downlink channel between the network device and the first antenna set of the terminal device is determined to be better than the channel quality of the downlink channel between the network device and the second antenna set of the terminal device by measuring the first SRS and the second SRS sent by the terminal device, then when constructing the channel state matrix H of the downlink channel between the network device and the terminal device, the channel state matrix corresponding to the first antenna set is sorted H1 in the front.
实施中，网络设备与终端设备的天线集合之间的信道质量可以通过天线集合对应的码字的调制阶数表示。示例性的，若第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数，则表示网络设备与终端设备的第一天线集合之间的下行信道的信道质量，优于网络设备与终端设备的第二天线集合之间的下行信道的信道质量；若第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数，则表示网络设备与终端设备的第二天线集合之间的下行信道的信道质量，优于网络设备与终端设备的第一天线集合之间的下行信道的信道质量。In implementation, the channel quality between the antenna set of the network device and the terminal device can be represented by the modulation order of the codeword corresponding to the antenna set. Exemplarily, if the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, it means that the channel quality of the downlink channel between the network device and the first antenna set of the terminal device is better than the channel quality of the downlink channel between the network device and the second antenna set of the terminal device; if the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, it means that the channel quality of the downlink channel between the network device and the second antenna set of the terminal device is better than the channel quality of the downlink channel between the network device and the first antenna set of the terminal device.
例如，网络设备包括64根天线，终端设备包括8根天线，终端设备的第一天线集合包括天线个数标号1、2、3、4，终端设备的第二天线集合包括天线个数标号5、6、7、8。网络设备对第一SRS进行测量，得到的第一天线集合对应的信道状态矩阵H1为4*64的矩阵；网络设备对第二SRS进行测量，得到的第二天线集合对应的信道状态矩阵H2为4*64的矩阵。在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数的情况下，构造的网络设备与终端设备之间的下行信道的信道状态矩阵H为：
For example, the network device includes 64 antennas, the terminal device includes 8 antennas, the first antenna set of the terminal device includes antenna numbers 1, 2, 3, and 4, and the second antenna set of the terminal device includes antenna numbers 5, 6, 7, and 8. The network device measures the first SRS, and the channel state matrix H1 corresponding to the first antenna set obtained is a 4*64 matrix; the network device measures the second SRS, and the channel state matrix H2 corresponding to the second antenna set obtained is a 4*64 matrix. When the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the channel state matrix H of the downlink channel between the constructed network device and the terminal device is:
网络设备在与终端设备之间的下行信道的信道状态矩阵确定之后，基于确定出的信道状态矩阵，可以确定第一天线集合对应的预编码矩阵为V1和第二天线集合对应的预编码矩阵为V2。After determining the channel state matrix of the downlink channel between the network device and the terminal device, the network device may determine the precoding matrix corresponding to the first antenna set as V1 and the precoding matrix corresponding to the second antenna set as V2 based on the determined channel state matrix.
下面详细介绍下基于信道状态矩阵，确定第一天线集合对应的预编码矩阵为V1和第二天线集合对应的预编码矩阵为V2的过程：The following is a detailed description of the process of determining the precoding matrix corresponding to the first antenna set as V1 and the precoding matrix corresponding to the second antenna set as V2 based on the channel state matrix:
将网络设备与终端设备之间的下行信道的信道状态矩阵H进行共轭转置处理，并对共轭转置之后的矩阵HH进行QR分解，如下列公式所示：
[Q,R]＝qr(HH)The channel state matrix H of the downlink channel between the network device and the terminal device is conjugate transposed, and the matrix H H after the conjugate transposition is QR decomposed, as shown in the following formula:
[Q,R]＝qr(H H )
基于上述公式，分解得到R矩阵和Q矩阵；其中R矩阵为上三角矩阵，Q矩阵为酉阵。Based on the above formula, the R matrix and Q matrix are decomposed; the R matrix is an upper triangular matrix and the Q matrix is a unitary matrix.
在得到R矩阵之后，对R矩阵进行共轭转置，得到下三角矩阵RH。After obtaining the R matrix, conjugate transpose is performed on the R matrix to obtain a lower triangular matrix RH .
本申请实施例将下三角矩阵RH对角线上元素的模称为等效信道条件数，下三角矩阵RH对角线上元素的模的大小用于表征终端设备的各个天线的信道质量。In the embodiment of the present application, the modulus of the elements on the diagonal of the lower triangular matrix RH is called the equivalent channel condition number, and the size of the modulus of the elements on the diagonal of the lower triangular matrix RH is used to characterize the channel quality of each antenna of the terminal device.
网络设备根据等效信道条件数，以及终端设备发送的第一CSI中的第一秩指示信息和第二CSI中的第二秩指示信息，确定第一天线集合对应的第一预编码矩阵V1和第二天线集合对应的第二预编码矩 阵V2。The network device determines a first precoding matrix V1 corresponding to the first antenna set and a second precoding matrix V2 corresponding to the second antenna set according to the equivalent channel condition number and the first rank indication information in the first CSI sent by the terminal device and the second rank indication information in the second CSI. Array V 2 .
一种可能的实现方式中，网络设备根据第一秩指示信息，确定第一天线集合对应的等效信道条件数中选择较大的等效信道条件数；示例性的，若第一秩指示信息为2，则从第一天线集合对应的等效信道条件数中选择较大的两个等效信道条件数。网络设备根据选取出的等效条件数在下三角矩阵RH中的位置，从酉阵Q中选择相应的列向量组成第一天线集合对应的预编码矩阵V1；示例性的，如图8所示的下三角矩阵RH，第一天线集合对应的等效信道条件数中较大的两个等效信道条件数分别位于第一列和第二列，则网络设备将酉阵Q的第一列向量和第二列向量组成第一天线集合对应的第一预编码矩阵V1。In a possible implementation, the network device determines, based on the first rank indication information, to select a larger equivalent channel condition number from the equivalent channel condition numbers corresponding to the first antenna set; illustratively, if the first rank indication information is 2, two larger equivalent channel condition numbers are selected from the equivalent channel condition numbers corresponding to the first antenna set. The network device selects corresponding column vectors from the unitary array Q to form a precoding matrix V 1 corresponding to the first antenna set according to the positions of the selected equivalent condition numbers in the lower triangular matrix RH ; illustratively, as shown in the lower triangular matrix RH of FIG8 , the larger two equivalent channel condition numbers from the equivalent channel condition numbers corresponding to the first antenna set are located in the first column and the second column, respectively, and the network device forms the first precoding matrix V 1 corresponding to the first antenna set with the first column vector and the second column vector of the unitary array Q.
网络设备根据第二秩指示信息，确定第二天线集合对应的等效信道条件数中选择较大的等效信道条件数；示例性的，若第二秩指示信息为3，则从第二天线集合对应的等效信道条件数中选择较大的三个等效信道条件数。网络设备根据选取出的等效条件数在下三角矩阵RH中的位置，从酉阵Q中选择相应的列向量组成第二天线集合对应的预编码矩阵V2；示例性的，如图8所示的下三角矩阵RH，第二天线集合对应的等效信道条件数中较大的三个等效信道条件数分别位于第五列、第六列和第七列，则网络设备将酉阵Q的第五列向量、第六列向量和第七列向量组成第二天线集合对应的第二预编码矩阵V2。The network device determines, according to the second rank indication information, to select a larger equivalent channel condition number from the equivalent channel condition numbers corresponding to the second antenna set; illustratively, if the second rank indication information is 3, three larger equivalent channel condition numbers are selected from the equivalent channel condition numbers corresponding to the second antenna set. The network device selects corresponding column vectors from the unitary matrix Q to form a precoding matrix V 2 corresponding to the second antenna set according to the positions of the selected equivalent condition numbers in the lower triangular matrix RH ; illustratively, for the lower triangular matrix RH shown in FIG8 , the three larger equivalent channel condition numbers from the equivalent channel condition numbers corresponding to the second antenna set are located in the fifth column, the sixth column, and the seventh column, respectively, then the network device forms the second precoding matrix V 2 corresponding to the second antenna set with the fifth column vector, the sixth column vector, and the seventh column vector of the unitary matrix Q.
确定方式2、网络设备根据终端设备发送的第五指示信息，以及CSI集合中的秩指示信息，确定第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵。Determination method 2: The network device determines the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set according to the fifth indication information sent by the terminal device and the rank indication information in the CSI set.
一种可选的实施方式为，终端设备向网络设备发送第五指示信息，第五指示信息用于指示第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI信息中的第二秩指示信息对应的天线标识。An optional implementation is that the terminal device sends fifth indication information to the network device, and the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set.
基于上述介绍，终端设备在对网络设备与终端设备之间的信道状态矩阵进行QR分解，并对分解得到的R矩阵共轭转置，得到的下三角矩阵RH对角线上的元素与终端设备的天线标识一一对应。第一CSI中的第一秩指示信息对应的天线标识为，与第一秩指示信息对应的下三角矩阵RH对角线上的元素的位置；第二CSI中的第二秩指示信息对应的天线标识为，与第二秩指示信息对应的下三角矩阵RH对角线上的元素的位置。Based on the above introduction, the terminal device performs QR decomposition on the channel state matrix between the network device and the terminal device, and conjugate transposes the decomposed R matrix, and the elements on the diagonal of the obtained lower triangular matrix RH correspond one-to-one to the antenna identifier of the terminal device. The antenna identifier corresponding to the first rank indication information in the first CSI is the position of the element on the diagonal of the lower triangular matrix RH corresponding to the first rank indication information; the antenna identifier corresponding to the second rank indication information in the second CSI is the position of the element on the diagonal of the lower triangular matrix RH corresponding to the second rank indication information.
示例性的，如图8所示的下三角矩阵RH，假设总传输流数N为5，终端设备从下三角矩阵RH中选取出的模值较大的5个元素分别为9、8、7、6、5，分别位于下三角矩阵RH中的第一列、第二列、第五列、第六列和第七列。则与第一秩指示信息对应的下三角矩阵RH对角线上的元素的位置为第一列和第二列，与第二秩指示信息对应的下三角矩阵RH对角线上的元素的位置为第五列、第六列和第七列。第一CSI中的第一秩指示信息对应的天线标识可以为天线个数标号1、2，第二CSI中的第一秩指示信息对应的天线标识可以为天线个数标号5、6、7。Exemplarily, for the lower triangular matrix RH shown in FIG8 , assuming that the total number of transmission streams N is 5, the five elements with larger modulus values selected by the terminal device from the lower triangular matrix RH are 9, 8, 7, 6, and 5, respectively, and are located in the first column, the second column, the fifth column, the sixth column, and the seventh column of the lower triangular matrix RH, respectively. Then, the positions of the elements on the diagonal of the lower triangular matrix RH corresponding to the first rank indication information are the first column and the second column, and the positions of the elements on the diagonal of the lower triangular matrix RH corresponding to the second rank indication information are the fifth column, the sixth column, and the seventh column. The antenna identifier corresponding to the first rank indication information in the first CSI may be antenna number labels 1 and 2, and the antenna identifier corresponding to the first rank indication information in the second CSI may be antenna number labels 5, 6, and 7.
可选的，第五指示信息对应于终端设备的通信带宽。Optionally, the fifth indication information corresponds to the communication bandwidth of the terminal device.
一种可能的实现方式中，终端设备发送的第五指示信息对应于终端设备的整个通信带宽。在整个通信带宽上均采用第五指示信息所指示的第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI信息中的第二秩指示信息对应的天线标识。终端设备基于该种全带粒度的方式发送第五指示信息，可以减少指示信息量，降低信令开销。In a possible implementation, the fifth indication information sent by the terminal device corresponds to the entire communication bandwidth of the terminal device. The antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set indicated by the fifth indication information, and/or the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set are used over the entire communication bandwidth. The terminal device sends the fifth indication information based on this full-band granularity, which can reduce the amount of indication information and reduce signaling overhead.
可选的，终端设备可以在发送CSI集合的同时，向网络设备发送第五指示信息；或者，终端设备在向网络设备发送CSI集合之后，向网络设备发送第五指示信息；或者，终端设备可以在确定出第一秩指示信息和第二秩指示信息后，先向网络设备发送第五指示信息，然后再向网络设备发送CSI集合。Optionally, the terminal device may send the fifth indication information to the network device at the same time as sending the CSI set; or, the terminal device may send the fifth indication information to the network device after sending the CSI set to the network device; or, after determining the first rank indication information and the second rank indication information, the terminal device may first send the fifth indication information to the network device and then send the CSI set to the network device.
网络设备根据上述确定方式1中介绍的信道状态矩阵H构造方法以及QR分解方法，得到分解后的酉阵Q；根据第五指示信息中指示的第一CSI中的第一秩指示信息对应的天线标识、第二天线集合中第二CSI信息中的第二秩指示信息对应的天线标识，从酉阵Q中提取列向量组成第一预编码矩阵和第二预编码矩阵。The network device obtains the decomposed unitary array Q according to the channel state matrix H construction method and the QR decomposition method introduced in the above-mentioned determination method 1; according to the antenna identifier corresponding to the first rank indication information in the first CSI indicated in the fifth indication information and the antenna identifier corresponding to the second rank indication information in the second CSI information in the second antenna set, the column vector is extracted from the unitary array Q to form the first precoding matrix and the second precoding matrix.
例如，第五指示信息中第一CSI中的第一秩指示信息对应的天线标识为天线个数标号1、2，第二CSI中的第一秩指示信息对应的天线标识为天线个数标号5、6、7，则网络设备从酉阵Q中提取第一列向量和第二列向量组成第一预编码矩阵，网络设备从酉阵Q中提取第五列向量、第六列向量和第七列向量组成第二预编码矩阵。For example, the antenna identifiers corresponding to the first rank indication information in the first CSI in the fifth indication information are antenna numbers 1 and 2, and the antenna identifiers corresponding to the first rank indication information in the second CSI are antenna numbers 5, 6, and 7. The network device extracts the first column vector and the second column vector from the unitary array Q to form a first precoding matrix, and the network device extracts the fifth column vector, the sixth column vector, and the seventh column vector from the unitary array Q to form a second precoding matrix.
网络设备在确定出第一天线集合对应的第一预编码矩阵和第二天线集合对应的第二预编码矩阵之后，基于第一预编码矩阵和第二预编码矩阵，向终端设备发送接收信号。After determining the first precoding matrix corresponding to the first antenna set and the second precoding matrix corresponding to the second antenna set, the network device sends a receive signal to the terminal device based on the first precoding matrix and the second precoding matrix.
一种可能的实现方式中，网络设备向终端设备发送接收信号时，需要根据网络设备与第一天线集合 之间的信道矩阵和第一预编码矩阵、网络设备与第二天线集合之间的信道矩阵和第二预编码矩阵，对接收信号进行编码。In a possible implementation, when the network device sends a received signal to the terminal device, it is necessary to determine the relationship between the network device and the first antenna set. The channel matrix and the first precoding matrix between the network device and the second antenna set, the channel matrix and the second precoding matrix between the network device and the second antenna set are used to encode the received signal.
如图9所示的网络设备发送接收信号的示意图，网络设备向终端设备发送第一接收信号S1和第二接收信号S2；假设网络设备与第一天线集合之间的信道状态矩阵为H1，网络设备与第二天线集合之间的信道状态矩阵为H2；第一天线集合对应的预编码矩阵为V1，第二天线集合对应的预编码矩阵为V2。终端设备分别通过第一天线集合G1和第二天线集合G2接收网络设备发送的接收信号。As shown in FIG9 , the network device sends a first receiving signal S1 and a second receiving signal S2 to the terminal device; it is assumed that the channel state matrix between the network device and the first antenna set is H1 , and the channel state matrix between the network device and the second antenna set is H2 ; the precoding matrix corresponding to the first antenna set is V1 , and the precoding matrix corresponding to the second antenna set is V2 . The terminal device receives the receiving signals sent by the network device through the first antenna set G1 and the second antenna set G2 , respectively.
终端设备通过第一天线集合接收到的信号Y1＝H1*V1*S1+n1；通过第二天线集合接收到的信号Y2＝H2*V2*S2+H2*V1*S1+n2。The signal received by the terminal device through the first antenna set is Y 1 =H 1 *V 1 *S 1 +n 1 ; the signal received through the second antenna set is Y 2 =H 2 *V 2 *S 2 +H 2 *V 1 *S 1 +n 2 .
本申请实施例第一接收信号和第二接收信号满足如下第一规则，第一规则是预先定义的；In the embodiment of the present application, the first received signal and the second received signal satisfy the following first rule, where the first rule is predefined;
其中，第一规则包括：The first rule includes:
在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，第二天线集合对应的第二接收信号对第一天线集合对应的第一接收信号的干扰小于第一阈值；或，在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，第一天线集合对应的第一接收信号对第二天线集合对应的第二接收信号的干扰小于第一阈值。When the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the interference of the second received signal corresponding to the second antenna set on the first received signal corresponding to the first antenna set is less than the first threshold; or, when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set on the second received signal corresponding to the second antenna set is less than the first threshold.
可选的，预先定义第一规则可以为基于协议约定的方式，预先定义第一规则；终端设备和网络设备可以基于协议约定获取第一规则。Optionally, pre-defining the first rule may be pre-defining the first rule based on a protocol agreement; the terminal device and the network device may obtain the first rule based on the protocol agreement.
第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数，表示网络设备与第一天线集合之间的信道质量优于网络设备与第二天线集合之间的信道质量；第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数，表示网络设备与第二天线集合之间的信道质量优于网络设备与第一天线集合之间的信道质量。The modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, indicating that the channel quality between the network device and the first antenna set is better than the channel quality between the network device and the second antenna set; the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, indicating that the channel quality between the network device and the second antenna set is better than the channel quality between the network device and the first antenna set.
需要说明的是，基于本申请实施例QR分解的方式，在构造网络设备和终端设备之间的信道矩阵时，将信道质量较好的天线集合对应的信道状态矩阵靠前排序。比如，在网络设备与第一天线集合之间的信道质量优于网络设备与第二天线集合之间的信道质量时，将网络设备与第一天线集合之间的信道状态矩阵靠前排序，这样在网络设备向终端发送接收信号时，第二接收信号对第一接收信号的干扰较小；在网络设备与第二天线集合之间的信道质量优于网络设备与第一天线集合之间的信道质量时，将网络设备与第二天线集合之间的信道状态矩阵靠前排序，这样在网络设备向终端发送接收信号时，第一接收信号对第二接收信号的干扰较小。It should be noted that, based on the QR decomposition method of the embodiment of the present application, when constructing the channel matrix between the network device and the terminal device, the channel state matrix corresponding to the antenna set with better channel quality is sorted in front. For example, when the channel quality between the network device and the first antenna set is better than the channel quality between the network device and the second antenna set, the channel state matrix between the network device and the first antenna set is sorted in front, so that when the network device sends a received signal to the terminal, the second received signal has less interference with the first received signal; when the channel quality between the network device and the second antenna set is better than the channel quality between the network device and the first antenna set, the channel state matrix between the network device and the second antenna set is sorted in front, so that when the network device sends a received signal to the terminal, the first received signal has less interference with the second received signal.
示例性的，如图9所示的网络设备发送接收信号的示意图，终端设备通过第一天线集合接收到的信号Y1＝H1*V1*S1+n1；通过第二天线集合接收到的信号Y2＝H2*V2*S2+H2*V1*S1+n2。Exemplarily, as shown in the schematic diagram of the network device sending and receiving signals in FIG9 , the terminal device receives signal Y 1 =H 1 *V 1 *S 1 +n 1 through the first antenna set; and receives signal Y 2 =H 2 *V 2 *S 2 +H 2 *V 1 *S 1 +n 2 through the second antenna set.
终端设备通过第一天线集合接收到Y1之后，可以从Y1中解析出第一接收信号S1。After receiving Y 1 through the first antenna set, the terminal device can parse the first received signal S 1 from Y 1 .
一种可能的实现方式中，终端设备在通过第一天线集合接收到Y1之后，根据网络设备与第一天线集合之间的信道状态矩阵H1以及第一天线集合对应的预编码矩阵V1，反向解析出第一接收信号S1。In a possible implementation, after receiving Y1 through the first antenna set, the terminal device reversely parses the first received signal S1 according to the channel state matrix H1 between the network device and the first antenna set and the precoding matrix V1 corresponding to the first antenna set.
终端设备在解析出第一接收信号S1之后，对通过第二天线集合接收到的Y2进行SIC干扰消除；示例性的，终端设备根据解析出第一接收信号S1以及第一天线集合对应的预编码矩阵V1、网络设备与第二天线集合之间的信道状态矩阵H2，消除Y2中第一接收信号S1的干扰。终端设备在对通过第二天线集合接收到的Y2进行SIC干扰消除之后，根据网络设备与第二天线集合之间的信道状态矩阵H2以及第二天线集合对应的预编码矩阵V2，反向解析出第二接收信号S2。After parsing out the first received signal S1 , the terminal device performs SIC interference elimination on Y2 received through the second antenna set; illustratively, the terminal device eliminates interference of the first received signal S1 in Y2 according to the parsed first received signal S1 and the precoding matrix V1 corresponding to the first antenna set and the channel state matrix H2 between the network device and the second antenna set. After performing SIC interference elimination on Y2 received through the second antenna set, the terminal device reversely parses out the second received signal S2 according to the channel state matrix H2 between the network device and the second antenna set and the precoding matrix V2 corresponding to the second antenna set.
基于与方法实施例的同一发明构思，本申请实施例提供一种通信装置，该通信装置的结构可以如图10所示，包括通信单元1001和处理单元1002。Based on the same inventive concept as the method embodiment, an embodiment of the present application provides a communication device, the structure of which may be as shown in FIG. 10 , including a communication unit 1001 and a processing unit 1002 .
在一种实施方式中，通信装置具体可以用于实现终端设备执行的方法，该装置可以是终端设备本身，也可以是终端设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信单元1001，用于根据第一天线集合和第二天线集合接收来自网络设备的CSI-RS；其中，终端设备对应M个天线标识，第一天线集合对应M个天线标识中的一部分，第二天线集合对应M个天线标识中的另一部分，M为大于1的整数；处理单元1002，用于根据CSI-RS，确定CSI集合；CSI集合包括第一CSI和第二CSI，其中，第一CSI为第一天线集合对应的CSI，第二CSI为第二天线集合对应的CSI；通信单元1001，用于向网络设备发送CSI集合；以及根据第一天线集合和第二天线集合接收来自网络设备的接收信号，接收信号包括第一天线集合对应的第一接收信号和第二天线集合对应的第二接收信号。In one embodiment, the communication device can be specifically used to implement the method executed by the terminal device. The device can be the terminal device itself, or a chip or chipset in the terminal device or a part of the chip used to execute the function of the related method. Wherein, the communication unit 1001 is used to receive the CSI-RS from the network device according to the first antenna set and the second antenna set; wherein the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1; the processing unit 1002 is used to determine the CSI set according to the CSI-RS; the CSI set includes the first CSI and the second CSI, wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set; the communication unit 1001 is used to send the CSI set to the network device; and receive the received signal from the network device according to the first antenna set and the second antenna set, and the received signal includes the first received signal corresponding to the first antenna set and the second received signal corresponding to the second antenna set.
示例性的，天线标识包括SRS天线端口号、和/或天线个数标号。 Exemplarily, the antenna identifier includes an SRS antenna port number and/or an antenna number.
可选的，通信单元1001还可以用于：接收来自网络设备的第一指示信息，第一指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。Optionally, the communication unit 1001 may also be used to: receive first indication information from a network device, where the first indication information is used to indicate an antenna identifier corresponding to the first antenna set and/or an antenna identifier corresponding to the second antenna set.
示例性的，第一指示信息对应于终端设备的通信带宽。Exemplarily, the first indication information corresponds to the communication bandwidth of the terminal device.
可选的，通信单元1001还可以用于：向网络设备发送第二指示信息，第二指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。Optionally, the communication unit 1001 may also be used to: send second indication information to the network device, where the second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
示例性的，第二指示信息对应于终端设备的通信带宽。Exemplarily, the second indication information corresponds to the communication bandwidth of the terminal device.
示例性的，第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识是预先定义的。Exemplarily, the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined.
示例性的，第一接收信号和第二接收信号满足如下第一规则，第一规则是预先定义的；Exemplarily, the first received signal and the second received signal satisfy the following first rule, where the first rule is predefined;
第一规则包括：在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，第二天线集合对应的第二接收信号对第一天线集合对应的第一接收信号的干扰小于第一阈值；或，在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，第一天线集合对应的第一接收信号对第二天线集合对应的第二接收信号的干扰小于第一阈值。The first rule includes: when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the interference of the second received signal corresponding to the second antenna set on the first received signal corresponding to the first antenna set is less than the first threshold; or, when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set on the second received signal corresponding to the second antenna set is less than the first threshold.
示例性的，第一CSI中的第一秩指示信息是由第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果确定的；第二CSI中的第二秩指示信息是由第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果确定的；其中，第一天线集合对应的信道测量结果和第二天线集合对应的信道测量结果是根据CSI-RS确定的。Exemplarily, the first rank indication information in the first CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; the second rank indication information in the second CSI is determined by the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set; wherein the channel measurement results corresponding to the first antenna set and the channel measurement results corresponding to the second antenna set are determined based on CSI-RS.
可选的，处理单元1002还可以用于：确定预先定义的第一CSI和/或第二CSI中的CQI的确定方式；或者Optionally, the processing unit 1002 may also be configured to: determine a predefined method for determining a CQI in the first CSI and/or the second CSI; or
通信单元1001还可以用于：接收来自网络设备的第三指示信息，第三指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式；或者，向网络设备发送第四指示信息，第四指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式。The communication unit 1001 can also be used to: receive third indication information from the network device, the third indication information is used to indicate the method for determining the CQI in the first CSI and/or the second CSI; or, send fourth indication information to the network device, the fourth indication information is used to indicate the method for determining the CQI in the first CSI and/or the second CSI.
可选的，通信单元1001还可以用于：向网络设备发送第五指示信息，第五指示信息用于指示第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI中的第二秩指示信息对应的天线标识。Optionally, the communication unit 1001 can also be used to: send fifth indication information to the network device, the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set.
示例性的，第五指示信息对应于终端设备的通信带宽。Exemplarily, the fifth indication information corresponds to the communication bandwidth of the terminal device.
示例性的，M为8。Exemplarily, M is 8.
本申请实施例还提供一种通信装置，该通信装置的结构可以如图11所示，包括通信单元1101和处理单元1102。An embodiment of the present application further provides a communication device, the structure of which may be as shown in FIG. 11 , including a communication unit 1101 and a processing unit 1102 .
在一种实施方式中，通信装置具体可以用于实现网络设备执行的方法，该装置可以是网络设备本身，也可以是网络设备中的芯片或芯片组或芯片中用于执行相关方法功能的一部分。其中，通信单元1101，用于传输信息和信号；处理单元1102，用于通过通信单元1101执行：向终端设备发送CSI-RS；接收来自终端设备的CSI集合；其中CSI集合是根据CSI-RS确定的，CSI集合中包括第一CSI和第二CSI，第一CSI为终端设备的第一天线集合对应的CSI，第二CSI为终端设备的第二天线集合对应的CSI；终端设备对应M个天线标识，第一天线集合对应M个天线标识中的一部分，第二天线集合对应M个天线标识中的另一部分，M为大于1的整数；向终端设备发送接收信号，接收信号包括第一天线集合对应的第一接收信号和第二天线集合对应的第二接收信号。In one embodiment, the communication device can be specifically used to implement the method executed by the network device, and the device can be the network device itself, or a chip or chipset in the network device or a part of the chip used to execute the function of the related method. Wherein, the communication unit 1101 is used to transmit information and signals; the processing unit 1102 is used to execute through the communication unit 1101: sending CSI-RS to the terminal device; receiving a CSI set from the terminal device; wherein the CSI set is determined according to the CSI-RS, and the CSI set includes a first CSI and a second CSI, the first CSI is the CSI corresponding to the first antenna set of the terminal device, and the second CSI is the CSI corresponding to the second antenna set of the terminal device; the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1; sending a received signal to the terminal device, and the received signal includes a first received signal corresponding to the first antenna set and a second received signal corresponding to the second antenna set.
示例性的，天线标识包括SRS天线端口号、和/或天线个数标号。Exemplarily, the antenna identifier includes an SRS antenna port number and/or an antenna number.
可选的，通信单元1101还可以用于：向终端设备发送第一指示信息，第一指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。Optionally, the communication unit 1101 may also be used to: send first indication information to the terminal device, where the first indication information is used to indicate an antenna identifier corresponding to the first antenna set and/or an antenna identifier corresponding to the second antenna set.
示例性的，第一指示信息对应于终端设备的通信带宽。Exemplarily, the first indication information corresponds to the communication bandwidth of the terminal device.
可选的，通信单元1101还可以用于：接收来自终端设备的第二指示信息，第二指示信息用于指示第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识。Optionally, the communication unit 1101 may also be used to: receive second indication information from the terminal device, where the second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
示例性的，第二指示信息对应于终端设备的通信带宽。Exemplarily, the second indication information corresponds to the communication bandwidth of the terminal device.
示例性的，第一天线集合对应的天线标识，和/或第二天线集合对应的天线标识是预先定义的。Exemplarily, the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined.
示例性的，第一接收信号和第二接收信号满足如下第一规则，第一规则是预先定义的；Exemplarily, the first received signal and the second received signal satisfy the following first rule, where the first rule is predefined;
第一规则包括：在第一天线集合对应的码字的调制阶数高于第二天线集合对应的码字的调制阶数时，第二天线集合对应的第二接收信号对第一天线集合对应的第一接收信号的干扰小于第一阈值；或，在第二天线集合对应的码字的调制阶数高于第一天线集合对应的码字的调制阶数时，第一天线集合对应的第 一接收信号对第二天线集合对应的第二接收信号的干扰小于第一阈值。The first rule includes: when the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, the interference of the second received signal corresponding to the second antenna set to the first received signal corresponding to the first antenna set is less than a first threshold; or, when the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the first received signal corresponding to the first antenna set The interference of a received signal on a second received signal corresponding to the second antenna set is less than a first threshold.
可选的，处理单元1102还可以用于：确定预先定义的第一CSI和/或第二CSI中的CQI的确定方式；或者Optionally, the processing unit 1102 may also be configured to: determine a predefined method for determining a CQI in the first CSI and/or the second CSI; or
通信单元1101还可以用于：向终端设备发送第三指示信息，第三指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式；或者，接收来自终端设备的第四指示信息，第四指示信息用于指示第一CSI和/或第二CSI中的CQI的确定方式。The communication unit 1101 can also be used to: send third indication information to the terminal device, the third indication information is used to indicate the method for determining the CQI in the first CSI and/or the second CSI; or, receive fourth indication information from the terminal device, the fourth indication information is used to indicate the method for determining the CQI in the first CSI and/or the second CSI.
可选的，通信单元1101还可以用于：接收来自终端设备的第五指示信息，第五指示信息用于指示第一天线集合中第一CSI中的第一秩指示信息对应的天线标识，和/或，第二天线集合中第二CSI中的第二秩指示信息对应的天线标识。Optionally, the communication unit 1101 can also be used to: receive fifth indication information from the terminal device, the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set.
示例性的，第五指示信息对应于终端设备的通信带宽。Exemplarily, the fifth indication information corresponds to the communication bandwidth of the terminal device.
示例性的，M为8。Exemplarily, M is 8.
本申请实施例中对模块的划分是示意性的，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，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。可以理解的是，本申请实施例中各个模块的功能或者实现可以进一步参考方法实施例的相关描述。The division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. It is understood that the functions or implementations of each module in the embodiments of the present application may further refer to the relevant description of the method embodiment.
一种可能的方式中，通信装置可以如图12所示，该装置可以是通信设备或者通信设备中的芯片，其中该通信设备可以为上述实施例中的终端设备。该装置包括处理器1201和通信接口1202，还可以包括存储器1203。其中，处理单元1002可以为处理器1201。通信单元1001可以为通信接口1202。In a possible manner, the communication device may be as shown in FIG12, and the device may be a communication device or a chip in the communication device, wherein the communication device may be the terminal device in the above embodiment. The device includes a processor 1201 and a communication interface 1202, and may also include a memory 1203. Among them, the processing unit 1002 may be the processor 1201. The communication unit 1001 may be the communication interface 1202.
处理器1201，可以是一个CPU，或者为数字处理单元等等。通信接口1202可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。该装置还包括：存储器1203，用于存储处理器1201执行的程序。存储器1203可以是非易失性存储器，比如硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)等，还可以是易失性存储器(volatile memory)，例如随机存取存储器(random-access memory，RAM)。存储器1203是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其它介质，但不限于此。The processor 1201 may be a CPU, or a digital processing unit, etc. The communication interface 1202 may be a transceiver, or an interface circuit such as a transceiver circuit, or a transceiver chip, etc. The device further includes: a memory 1203 for storing programs executed by the processor 1201. The memory 1203 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM). The memory 1203 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
处理器1201用于执行存储器1203存储的程序代码，具体用于执行上述处理单元1002的动作，本申请在此不再赘述。通信接口1202具体用于执行上述通信单元1001的动作，本申请在此不再赘述。The processor 1201 is used to execute the program code stored in the memory 1203, specifically to execute the actions of the processing unit 1002, which will not be described in detail in this application. The communication interface 1202 is specifically used to execute the actions of the communication unit 1001, which will not be described in detail in this application.
本申请实施例中不限定上述通信接口1202、处理器1201以及存储器1203之间的具体连接介质。本申请实施例在图12中以存储器1203、处理器1201以及通信接口1202之间通过总线1204连接，总线在图12中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图12中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。The specific connection medium between the communication interface 1202, the processor 1201 and the memory 1203 is not limited in the embodiment of the present application. In FIG. 12, the memory 1203, the processor 1201 and the communication interface 1202 are connected by a bus 1204. The bus is represented by a bold line in FIG. 12. The connection mode between other components is only for schematic illustration and is not limited thereto. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in FIG. 12, but it does not mean that there is only one bus or one type of bus.
一种可能的方式中，通信装置可以如图13所示，该装置可以是通信设备或者通信设备中的芯片，其中该通信设备可以为上述实施例中的网络设备。该装置包括处理器1301和通信接口1302，还可以包括存储器1303。其中，处理单元1102可以为处理器1301。通信单元1101可以为通信接口1302。In a possible manner, the communication device may be as shown in FIG13, and the device may be a communication device or a chip in the communication device, wherein the communication device may be the network device in the above-mentioned embodiment. The device includes a processor 1301 and a communication interface 1302, and may also include a memory 1303. Among them, the processing unit 1102 may be the processor 1301. The communication unit 1101 may be the communication interface 1302.
处理器1301，可以是一个CPU，或者为数字处理单元等等。通信接口1302可以是收发器、也可以为接口电路如收发电路等、也可以为收发芯片等等。该装置还包括：存储器1303，用于存储处理器1301执行的程序。存储器1303可以是非易失性存储器，比如HDD或SSD等，还可以是易失性存储器，例如RAM。存储器1303是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其它介质，但不限于此。The processor 1301 may be a CPU, or a digital processing unit, etc. The communication interface 1302 may be a transceiver, or an interface circuit such as a transceiver circuit, or a transceiver chip, etc. The device further includes: a memory 1303, which is used to store the program executed by the processor 1301. The memory 1303 may be a non-volatile memory, such as an HDD or an SSD, etc., or a volatile memory, such as a RAM. The memory 1303 is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.
处理器1301用于执行存储器1303存储的程序代码，具体用于执行上述处理单元1102的动作，本申请在此不再赘述。通信接口1302具体用于执行上述通信单元1101的动作，本申请在此不再赘述。The processor 1301 is used to execute the program code stored in the memory 1303, specifically to execute the actions of the processing unit 1102, which will not be described in detail in this application. The communication interface 1302 is specifically used to execute the actions of the communication unit 1101, which will not be described in detail in this application.
本申请实施例中不限定上述通信接口1302、处理器1301以及存储器1303之间的具体连接介质。本申请实施例在图13中以存储器1303、处理器1301以及通信接口1302之间通过总线1304连接，总线在图13中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。总线可以分为地址总线、数据总线、控制总线等。为便于表示，图13中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。The specific connection medium between the communication interface 1302, the processor 1301 and the memory 1303 is not limited in the embodiment of the present application. In FIG. 13 , the memory 1303, the processor 1301 and the communication interface 1302 are connected via a bus 1304. The bus is represented by a bold line in FIG. 13 . The connection mode between other components is only for schematic illustration and is not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one bold line is used in FIG. 13 , but it does not mean that there is only one bus or one type of bus.
本申请实施例还提供了一种计算机可读存储介质，用于存储为执行上述处理器所需执行的计算机软 件指令，其包含用于执行上述处理器所需执行的程序。The embodiment of the present application also provides a computer readable storage medium for storing computer software required to execute the above processor. The software contains instructions for executing the program required by the above-mentioned processor.
本申请实施例还提供了一种计算机程序产品，包含用于执行上述处理器所需执行的计算机程序。The embodiment of the present application also provides a computer program product, comprising a computer program for executing the above-mentioned processor.
本领域内的技术人员应明白，本申请的实施例可提供为方法、***、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.
本申请是参照根据本申请的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to the flowchart and/or block diagram of the method, device (system), and computer program product according to the present application. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the process and/or box in the flowchart and/or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的保护范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。 Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the protection scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (30)

  1. 一种通信方法，其特征在于，所述方法包括：A communication method, characterized in that the method comprises:
    终端设备根据第一天线集合和第二天线集合接收来自网络设备的信道状态信息参考信号CSI-RS；其中，所述终端设备对应M个天线标识，所述第一天线集合对应所述M个天线标识中的一部分，所述第二天线集合对应所述M个天线标识中的另一部分，所述M为大于1的整数；The terminal device receives a channel state information reference signal CSI-RS from a network device according to a first antenna set and a second antenna set; wherein the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1;
    所述终端设备根据所述CSI-RS，确定信道状态信息CSI集合；所述CSI集合包括第一CSI和第二CSI，其中，所述第一CSI为所述第一天线集合对应的CSI，所述第二CSI为所述第二天线集合对应的CSI；The terminal device determines a channel state information CSI set according to the CSI-RS; the CSI set includes a first CSI and a second CSI, wherein the first CSI is the CSI corresponding to the first antenna set, and the second CSI is the CSI corresponding to the second antenna set;
    所述终端设备向所述网络设备发送所述CSI集合；The terminal device sends the CSI set to the network device;
    所述终端设备根据所述第一天线集合和所述第二天线集合接收来自网络设备的接收信号，所述接收信号包括所述第一天线集合对应的第一接收信号和所述第二天线集合对应的第二接收信号。The terminal device receives a reception signal from a network device according to the first antenna set and the second antenna set, and the reception signal includes a first reception signal corresponding to the first antenna set and a second reception signal corresponding to the second antenna set.
  2. 根据权利要求1所述的方法，其特征在于，所述天线标识包括信道探测参考信号SRS天线端口号、和/或天线个数标号。The method according to claim 1 is characterized in that the antenna identifier includes a channel sounding reference signal SRS antenna port number and/or an antenna number number.
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：The method according to claim 1 or 2, characterized in that the method further comprises:
    所述终端设备接收来自所述网络设备的第一指示信息，所述第一指示信息用于指示所述第一天线集合对应的天线标识，和/或所述第二天线集合对应的天线标识。The terminal device receives first indication information from the network device, where the first indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
  4. 根据权利要求3所述的方法，其特征在于，所述第一指示信息对应于所述终端设备的通信带宽。The method according to claim 3 is characterized in that the first indication information corresponds to the communication bandwidth of the terminal device.
  5. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：The method according to claim 1 or 2, characterized in that the method further comprises:
    所述终端设备向所述网络设备发送第二指示信息，所述第二指示信息用于指示所述第一天线集合对应的天线标识，和/或所述第二天线集合对应的天线标识。The terminal device sends second indication information to the network device, where the second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
  6. 根据权利要求5所述的方法，其特征在于，所述第二指示信息对应于所述终端设备的通信带宽。The method according to claim 5 is characterized in that the second indication information corresponds to the communication bandwidth of the terminal device.
  7. 根据权利要求1或2所述的方法，其特征在于，所述第一天线集合对应的天线标识，和/或所述第二天线集合对应的天线标识是预先定义的。The method according to claim 1 or 2 is characterized in that the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined.
  8. 根据权利要求1或2所述的方法，其特征在于，所述第一接收信号和所述第二接收信号满足如下第一规则，所述第一规则是预先定义的；The method according to claim 1 or 2, characterized in that the first received signal and the second received signal satisfy the following first rule, and the first rule is predefined;
    所述第一规则包括：The first rule includes:
    在所述第一天线集合对应的码字的调制阶数高于所述第二天线集合对应的码字的调制阶数时，所述第二天线集合对应的第二接收信号对所述第一天线集合对应的第一接收信号的干扰小于第一阈值；或When the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, interference of the second received signal corresponding to the second antenna set on the first received signal corresponding to the first antenna set is less than a first threshold; or
    在所述第二天线集合对应的码字的调制阶数高于所述第一天线集合对应的码字的调制阶数时，所述第一天线集合对应的第一接收信号对所述第二天线集合对应的第二接收信号的干扰小于第一阈值。When the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set on the second received signal corresponding to the second antenna set is less than a first threshold.
  9. 根据权利要求1或2所述的方法，其特征在于，所述第一CSI中的第一秩指示信息是由所述第一天线集合对应的信道测量结果和所述第二天线集合对应的信道测量结果确定的；所述第二CSI中的第二秩指示信息是由所述第一天线集合对应的信道测量结果和所述第二天线集合对应的信道测量结果确定的；The method according to claim 1 or 2 is characterized in that the first rank indication information in the first CSI is determined by the channel measurement result corresponding to the first antenna set and the channel measurement result corresponding to the second antenna set; the second rank indication information in the second CSI is determined by the channel measurement result corresponding to the first antenna set and the channel measurement result corresponding to the second antenna set;
    其中，所述第一天线集合对应的信道测量结果和所述第二天线集合对应的信道测量结果是根据所述CSI-RS确定的。The channel measurement result corresponding to the first antenna set and the channel measurement result corresponding to the second antenna set are determined according to the CSI-RS.
  10. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：The method according to claim 1 or 2, characterized in that the method further comprises:
    所述终端设备确定预先定义的所述第一CSI和/或所述第二CSI中的CQI的确定方式；或者The terminal device determines a predefined method for determining a CQI in the first CSI and/or the second CSI; or
    所述终端设备接收来自所述网络设备的第三指示信息，所述第三指示信息用于指示所述第一CSI和/或所述第二CSI中的CQI的确定方式；或者The terminal device receives third indication information from the network device, where the third indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI; or
    所述终端设备向所述网络设备发送第四指示信息，所述第四指示信息用于指示所述第一CSI和/或所述第二CSI中的CQI的确定方式。The terminal device sends fourth indication information to the network device, where the fourth indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI.
  11. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：The method according to claim 1 or 2, characterized in that the method further comprises:
    所述终端设备向所述网络设备发送第五指示信息，所述第五指示信息用于指示所述第一天线集合中所述第一CSI中的第一秩指示信息对应的天线标识，和/或，所述第二天线集合中所述第二CSI中的第二秩指示信息对应的天线标识。The terminal device sends fifth indication information to the network device, and the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set.
  12. 根据权利要求11所述的方法，其特征在于，所述第五指示信息对应于所述终端设备的通信带宽。 The method according to claim 11 is characterized in that the fifth indication information corresponds to the communication bandwidth of the terminal device.
  13. 根据权利要求1或2所述的方法，其特征在于，所述M为8。The method according to claim 1 or 2, characterized in that M is 8.
  14. 一种通信方法，其特征在于，所述方法包括：A communication method, characterized in that the method comprises:
    网络设备向终端设备发送信道状态信息参考信号CSI-RS；The network device sends a channel state information reference signal CSI-RS to the terminal device;
    所述网络设备接收来自所述终端设备的CSI集合；其中所述CSI集合是根据所述CSI-RS确定的，所述CSI集合中包括第一CSI和第二CSI，所述第一CSI为所述终端设备的第一天线集合对应的CSI，所述第二CSI为所述终端设备的第二天线集合对应的CSI；所述终端设备对应M个天线标识，所述第一天线集合对应所述M个天线标识中的一部分，所述第二天线集合对应所述M个天线标识中的另一部分，所述M为大于1的整数；The network device receives a CSI set from the terminal device; wherein the CSI set is determined according to the CSI-RS, the CSI set includes a first CSI and a second CSI, the first CSI is the CSI corresponding to the first antenna set of the terminal device, and the second CSI is the CSI corresponding to the second antenna set of the terminal device; the terminal device corresponds to M antenna identifiers, the first antenna set corresponds to a part of the M antenna identifiers, and the second antenna set corresponds to another part of the M antenna identifiers, and M is an integer greater than 1;
    所述网络设备向所述终端设备发送接收信号，所述接收信号包括所述第一天线集合对应的第一接收信号和所述第二天线集合对应的第二接收信号。The network device sends a receive signal to the terminal device, where the receive signal includes a first receive signal corresponding to the first antenna set and a second receive signal corresponding to the second antenna set.
  15. 根据权利要求14所述的方法，其特征在于，所述天线标识包括信道探测参考信号SRS天线端口号、和/或天线个数标号。The method according to claim 14 is characterized in that the antenna identifier includes a channel sounding reference signal SRS antenna port number and/or an antenna number number.
  16. 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：The method according to claim 14 or 15, characterized in that the method further comprises:
    所述网络设备向所述终端设备发送第一指示信息，所述第一指示信息用于指示所述第一天线集合对应的天线标识，和/或所述第二天线集合对应的天线标识。The network device sends first indication information to the terminal device, where the first indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
  17. 根据权利要求16所述的方法，其特征在于，所述第一指示信息对应于所述终端设备的通信带宽。The method according to claim 16 is characterized in that the first indication information corresponds to the communication bandwidth of the terminal device.
  18. 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：The method according to claim 14 or 15, characterized in that the method further comprises:
    所述网络设备接收来自所述终端设备的第二指示信息，所述第二指示信息用于指示所述第一天线集合对应的天线标识，和/或所述第二天线集合对应的天线标识。The network device receives second indication information from the terminal device, where the second indication information is used to indicate the antenna identifier corresponding to the first antenna set and/or the antenna identifier corresponding to the second antenna set.
  19. 根据权利要求18所述的方法，其特征在于，所述第二指示信息对应于所述终端设备的通信带宽。The method according to claim 18 is characterized in that the second indication information corresponds to the communication bandwidth of the terminal device.
  20. 根据权利要求14或15所述的方法，其特征在于，所述第一天线集合对应的天线标识，和/或所述第二天线集合对应的天线标识是预先定义的。The method according to claim 14 or 15 is characterized in that the antenna identifiers corresponding to the first antenna set and/or the antenna identifiers corresponding to the second antenna set are predefined.
  21. 根据权利要求14或15所述的方法，其特征在于，所述第一接收信号和所述第二接收信号满足如下第一规则，所述第一规则是预先定义的；The method according to claim 14 or 15, characterized in that the first received signal and the second received signal satisfy the following first rule, and the first rule is predefined;
    所述第一规则包括：The first rule includes:
    在所述第一天线集合对应的码字的调制阶数高于所述第二天线集合对应的码字的调制阶数时，所述第二天线集合对应的第二接收信号对所述第一天线集合对应的第一接收信号的干扰小于第一阈值；或When the modulation order of the codeword corresponding to the first antenna set is higher than the modulation order of the codeword corresponding to the second antenna set, interference of the second received signal corresponding to the second antenna set on the first received signal corresponding to the first antenna set is less than a first threshold; or
    在所述第二天线集合对应的码字的调制阶数高于所述第一天线集合对应的码字的调制阶数时，所述第一天线集合对应的第一接收信号对所述第二天线集合对应的第二接收信号的干扰小于第一阈值。When the modulation order of the codeword corresponding to the second antenna set is higher than the modulation order of the codeword corresponding to the first antenna set, the interference of the first received signal corresponding to the first antenna set on the second received signal corresponding to the second antenna set is less than a first threshold.
  22. 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：The method according to claim 14 or 15, characterized in that the method further comprises:
    所述网络设备确定预先定义的所述第一CSI和/或所述第二CSI中的CQI的确定方式；或者The network device determines a predefined method for determining a CQI in the first CSI and/or the second CSI; or
    所述网络设备向所述终端设备发送第三指示信息，所述第三指示信息用于指示所述第一CSI和/或所述第二CSI中的CQI的确定方式；或者The network device sends third indication information to the terminal device, where the third indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI; or
    所述网络设备接收来自所述终端设备的第四指示信息，所述第四指示信息用于指示所述第一CSI和/或所述第二CSI中的CQI的确定方式。The network device receives fourth indication information from the terminal device, where the fourth indication information is used to indicate a method for determining a CQI in the first CSI and/or the second CSI.
  23. 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：The method according to claim 14 or 15, characterized in that the method further comprises:
    所述网络设备接收来自所述终端设备的第五指示信息，所述第五指示信息用于指示所述第一天线集合中所述第一CSI中的第一秩指示信息对应的天线标识，和/或，所述第二天线集合中所述第二CSI中的第二秩指示信息对应的天线标识。The network device receives fifth indication information from the terminal device, and the fifth indication information is used to indicate the antenna identifier corresponding to the first rank indication information in the first CSI in the first antenna set, and/or the antenna identifier corresponding to the second rank indication information in the second CSI in the second antenna set.
  24. 根据权利要求23所述的方法，其特征在于，所述第五指示信息对应于所述终端设备的通信带宽。The method according to claim 23 is characterized in that the fifth indication information corresponds to the communication bandwidth of the terminal device.
  25. 根据权利要求14或15所述的方法，其特征在于，所述M为8。The method according to claim 14 or 15, characterized in that M is 8.
  26. 一种通信装置，其特征在于，用于实现如权利要求1-13任一项所述的方法。A communication device, characterized in that it is used to implement the method according to any one of claims 1 to 13.
  27. 一种通信装置，其特征在于，用于实现如权利要求14-25任一项所述的方法。A communication device, characterized in that it is used to implement the method according to any one of claims 14-25.
  28. 一种通信装置，其特征在于，所述装置包括处理器和存储介质，所述存储介质存储有指令，所述指令被所述处理器运行时，使得如权利要求1-13任一项所述的方法被实现。A communication device, characterized in that the device comprises a processor and a storage medium, the storage medium stores instructions, and when the instructions are executed by the processor, the method described in any one of claims 1 to 13 is implemented.
  29. 一种通信装置，其特征在于，所述装置包括处理器和存储介质，所述存储介质存储有指令，所述指令被所述处理器运行时，使得如权利要求14-25任一项所述的方法被实现。A communication device, characterized in that the device includes a processor and a storage medium, the storage medium stores instructions, and when the instructions are executed by the processor, the method described in any one of claims 14 to 25 is implemented.
  30. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质包括指令，当所述指令被处 理器运行时，使得如权利要求1-13中任一项所述的方法被实现，或者，使得如权利要求14-25中任一项所述的方法被实现。 A computer-readable storage medium, characterized in that the computer-readable storage medium includes instructions, when the instructions are processed When the processor runs, the method according to any one of claims 1 to 13 is implemented, or the method according to any one of claims 14 to 25 is implemented.
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