WO2025199837A1 - 通信方法、终端、网络设备、系统及存储介质 - Google Patents

通信方法、终端、网络设备、系统及存储介质

Info

Publication number
WO2025199837A1
WO2025199837A1 PCT/CN2024/084241 CN2024084241W WO2025199837A1 WO 2025199837 A1 WO2025199837 A1 WO 2025199837A1 CN 2024084241 W CN2024084241 W CN 2024084241W WO 2025199837 A1 WO2025199837 A1 WO 2025199837A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
terminal
ports
group
spatial basis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/084241
Other languages
English (en)
French (fr)
Inventor
刘正宣
郤伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202480000696.XA priority Critical patent/CN121039971A/zh
Priority to PCT/CN2024/084241 priority patent/WO2025199837A1/zh
Publication of WO2025199837A1 publication Critical patent/WO2025199837A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular to a communication method, terminal, network device, system, and storage medium.
  • the number of supported transmit antenna ports can be expanded from 32 to a maximum of 128.
  • the Rel-16 eType II codebook, Rel-17 Type II port selection, and Rel-18 Type II Doppler codebook can be used to implement CSI (Channel Status Information) feedback.
  • the maximum number of CSI-RS ports for a single CSI-RS (Channel State Information-Reference Signal) resource is 32.
  • the base station needs to configure multiple CSI-RS resources for the terminal, and each CSI-RS resource must have an equal number of ports.
  • the present disclosure provides a communication method, terminal, network device, system and storage medium.
  • a communication method which is executed by a terminal.
  • the method includes:
  • a communication method is provided, which is performed by a network device.
  • the method includes:
  • Indication information sent by the terminal is received, where the indication information is used to indicate a first processing object selected by the terminal, and the indication information is generated by the terminal according to the K groups of processing objects and the codebook parameters.
  • a terminal including:
  • transceiver module configured to receive codebook parameters sent by a network device
  • a processing module configured to group processing objects to generate K groups of processing objects, where K is a positive integer
  • the transceiver module is configured to generate indication information according to the K groups of processing objects and the codebook parameters and send it to the network device, where the indication information is used to indicate the first processing object selected by the terminal.
  • a transceiver module configured to send a codebook parameter to a terminal, wherein the codebook parameter is used to instruct the terminal to group processing objects to generate K groups of processing objects, where K is a positive integer;
  • the transceiver module is configured to receive indication information sent by the terminal, where the indication information is used to indicate a first processing object selected by the terminal, and the indication information is generated by the terminal according to the K groups of processing objects and the codebook parameters.
  • a communication device including:
  • the processor is configured to execute the communication method described in any one of the first aspects of the present disclosure.
  • a communication device including:
  • processors one or more processors
  • the processor is configured to execute the communication method described in any one of the second aspects of the version disclosure.
  • a communication system comprising a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects of the present disclosure, and the network device is configured to implement the communication method described in any one of the second aspects of the present disclosure.
  • a storage medium which stores instructions.
  • the communication device executes a communication method as described in any one of the first aspects of the present disclosure, or the communication device executes a communication method as described in any one of the second aspects of the present disclosure.
  • a computer program product comprising a computer program and/or instructions, characterized in that when the computer program and/or instructions are executed by a communication device, they implement the communication method described in any one of the first aspects of the present disclosure, or when the computer program and/or instructions are executed by a communication device, they implement the communication method described in any one of the second aspects of the present disclosure.
  • the codebook parameters sent by the network device are received, the processing objects are grouped, and K groups of processing objects are generated. is a positive integer.
  • indication information is generated and sent to the network device.
  • the indication information is used to indicate the first processing object selected by the terminal. This grouping of candidate processing objects ensures that the indication overhead of the terminal's selected processing object remains unchanged or is reduced without increasing the terminal's memory. This enables reporting of the terminal's selected processing object indication to support transmission on larger antenna ports.
  • FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.
  • FIG2A is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present disclosure.
  • FIG2B is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present disclosure.
  • FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure.
  • FIG5 is a flow chart showing a communication method according to an embodiment of the present disclosure.
  • FIG6 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG8 is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure.
  • FIG9 is a schematic structural diagram of a chip 8200 according to an embodiment of the present disclosure.
  • a communication method which is executed by a terminal.
  • the method includes:
  • the processing object includes a spatial basis vector
  • the first processing object includes a first spatial basis vector
  • the processing object includes a port, and the first processing object includes a first port.
  • the indication information includes second information, and the second information is used to indicate the first processing object.
  • the indication information includes first information, and the first information is used to indicate quantity information of the first processing object.
  • the first information includes second bit information, and the second bit information is used to indicate the number of the first spatial basis vectors, and the number of bits of the second bit information is or
  • L is the quantity information of the first spatial basis vectors
  • L′′ represents the number of combinations of the number of optional spatial basis vectors in each group in K groups.
  • the first information includes third bit information, the third bit information is used to indicate the quantity information of the first port, and the number of bits of the third bit information is or
  • L′ is the number of combinations of the number of optional ports in each group of K groups
  • Pi is the number of ports in the i-th group of ports
  • the i-th group of ports is any of the K groups of ports
  • i is a positive integer less than or equal to K.
  • the second information includes fourth bit information, the fourth bit information is used to indicate the first processing object, and the number of bits of the fourth bit information is
  • the L i is the quantity information of the first processing objects in the i-th group of processing objects
  • the i-th group of processing objects is any K groups of processing objects
  • the i is a positive integer less than or equal to the K.
  • the first information is carried by the first part of information
  • the second information is carried by the second part of information
  • the terminal reports the channel state information CSI through the first part of information and the second part of information.
  • the first information and the second information are both carried by the second part of information, and the terminal reports CSI through the first part of information and the second part of information.
  • an embodiment of the present disclosure provides a communication method, which is performed by a network device.
  • the method includes:
  • Indication information sent by the terminal is received, where the indication information is used to indicate a first processing object selected by the terminal, and the indication information is generated by the terminal according to the K groups of processing objects and the codebook parameters.
  • the processing object includes a spatial basis vector
  • the first processing object includes a first spatial basis vector
  • the processing object includes a port
  • the first processing object includes a first port
  • the processing object includes second information, and the second information is used to indicate the first processing object.
  • the processing object includes first information, and the first information is used to indicate quantity information of the first processing object.
  • the first information includes second bit information
  • the second bit information is used to indicate the number of the first spatial basis vectors
  • the number of bits of the second bit information is or
  • L is the quantity information of the first spatial basis vectors
  • L′′ represents the number of combinations of the number of optional spatial basis vectors in each group in K groups.
  • the first information includes third bit information
  • the third bit information is used to indicate the quantity information of the first port
  • the number of bits of the third bit information is or
  • L′ is the number of combinations of the number of optional ports in each group of K groups
  • Pi is the number of ports in the i-th group of ports
  • the i-th group of ports is any of the K groups of ports
  • i is a positive integer less than or equal to K.
  • the second information includes fourth bit information, the fourth bit information is used to indicate the first processing object, and the number of bits of the fourth bit information is
  • the L i is the quantity information of the first processing objects in the i-th group of processing objects
  • the i-th group of processing objects is any K groups of processing objects
  • the i is a positive integer less than or equal to the K.
  • the first information is carried by the first part of information
  • the second information is carried by the second part of information
  • the terminal reports CSI through the first part of information and the second part of information.
  • the codebook parameter includes at least one of the following:
  • the codebook parameter includes first quantity information, and the first quantity information is used to determine the number of the first processing objects in the i-th group of processing objects, the i-th group of processing objects is any K groups of processing objects, and i is a positive integer less than or equal to K.
  • the transceiver module is configured to receive indication information sent by the terminal, where the indication information is used to indicate a first processing object selected by the terminal, and the indication information is generated by the terminal according to the K groups of processing objects and the codebook parameters.
  • processors one or more processors
  • the processor is configured to execute the communication method described in any one of the first aspects of the present disclosure.
  • an embodiment of the present disclosure proposes a communication system, comprising a terminal and a network device, wherein the terminal is configured to implement the communication method described in any one of the first aspects of the present disclosure, and the network device is configured to implement the communication method described in any one of the second aspects of the present disclosure.
  • an embodiment of the present disclosure proposes a storage medium storing instructions.
  • the communication device executes a communication method as described in any one of the first aspects of the present disclosure, or the communication device executes a communication method as described in any one of the second aspects of the present disclosure.
  • an embodiment of the present disclosure proposes a computer program product, comprising a computer program and/or instructions, which, when executed by a communication device, implement the communication method as described in any one of the first aspects of the present disclosure, or implement the communication method as described in any one of the second aspects of the present disclosure when the computer program and/or instructions are executed by a communication device.
  • codebook parameters sent by a network device are received, and processing objects are grouped to generate K groups of processing objects, where K is a positive integer.
  • indication information is generated and sent to the network device.
  • the indication information is used to indicate the first processing object selected by the terminal. This grouping of candidate processing objects ensures that the indication overhead of the terminal's selected processing object remains unchanged or is reduced, while not increasing the terminal's memory. This enables reporting of the terminal's selected processing object indication when supporting transmission on larger antenna ports.
  • descriptions such as “at least one of A and B,” “A and/or B,” “A in one case, B in another case,” or “in response to one case A, in response to another case B” may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.
  • a or B and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.
  • the description object is "field,” the ordinal number preceding “field” in “first field” and “second field” does not restrict the position or order of the "fields.”
  • First” and “second” do not restrict whether the modified "fields” are in the same message, nor do they restrict the order of the "first field” and “second field.”
  • the description object is "level,” the ordinal number preceding "level” in “first level” and “second level” does not restrict the priority of the "levels.”
  • the number of description objects is not restricted by ordinal numbers and can be one or more. For example, in the case of "first device,” the number of "devices" can be one or more.
  • the objects modified by different prefixes can be the same or different.
  • the description object is "device,”"firstdevice” and “second device” can be the same or different devices, and their types can be the same or different.
  • the description object is "information,”"firstinformation” and “second information” can be the same or different information, and their content can be the same or different.
  • “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • time/frequency and time/frequency domain refer to the time domain and/or the frequency domain.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not less than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “not more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments.
  • Terms such as “device”, “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, and “subject” can be used interchangeably.
  • network can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
  • the terms “access network device (AN device)”, “radio access network device (RAN device)”, “base station (BS)”, “radio base station”, “fixed station”, “node”, “access point”, “transmission point (TP)”, “reception point (RP)”, “transmission/reception point (TRP)”, “panel”, “antenna panel”, “antenna array”, “cell”, “macro cell”, “small cell”, “femto cell”, “pico cell”, “sector”, “cell group”, “serving cell”, “carrier”, “component carrier”, “bandwidth part (BWP)” and the like may be used interchangeably.
  • terminal In some embodiments, the terms "terminal”, “terminal device”, “user equipment (UE)”, “user terminal” “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.
  • the access network device, the core network device, or the network device can be replaced by a terminal.
  • the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.).
  • D2D device-to-device
  • V2X vehicle-to-everything
  • terms such as "uplink” and “downlink” can also be replaced by terms corresponding to communication between terminals (for example, "side”).
  • uplink channels, downlink channels, etc. can be replaced by side channels
  • uplinks, downlinks, etc. can be replaced by side links.
  • the terminal may be replaced by an access network device, a core network device, or a network device.
  • the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.
  • data, information, etc. may be obtained with the user's consent.
  • FIG1 is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 includes a terminal 101 and a network device 102 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between or within the access network devices involved in the embodiments of the present disclosure may become internal interfaces of Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the network device may be composed of a centralized unit (CU) and a distributed unit (DU), where the CU may also be called a control unit.
  • the CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, which is centrally controlled by the CU, but is not limited to this.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G fourth generation mobile communication system
  • 5G 5G new radio
  • FAA future radio access
  • RAT new radio access technology
  • NR new radio
  • NX new radio access
  • FAA future generation radio access
  • the codebook-based CSI indication reporting includes two parts of reporting: Part-1 (first part) and Part-2 (second part), wherein the indication information of the spatial basis vector or port selected by the UE is reported in Part-2.
  • the UE can determine the SD basis vector selected by the UE based on Table 1A above through the algorithm described in the relevant protocol.
  • Table 1B is additionally configured in the standard to determine the value of the combination number C(N1, N2). As shown in Table 1B:
  • the UE when the number of CSI-RS ports supported by the communication system reaches 128, the UE needs to use more memory to store the values corresponding to the above-mentioned combination coefficients, resulting in an increase in the UE's memory. Therefore, in this embodiment, by dividing the total candidate spatial basis vectors into multiple groups, and then indicating the spatial basis vectors selected by the UE in each group, respectively, this achieves the reporting of the indication of the spatial basis vectors selected by the UE when supporting larger transmit antenna ports while ensuring low feedback overhead and without increasing the UE's memory.
  • Step S2101 The network device sends codebook parameters to the terminal.
  • the terminal encodes the indication information to be reported based on codebook parameters, generates a codebook, and sends it to the network device.
  • codebook parameters can be used for beamforming, antenna (port) selection, MIMO (Multiple-Input Multiple-Output) system transmission, and channel estimation.
  • the name of the codebook parameter is not limited, and may be, for example, “codebook data”, “codebook configuration”, “codebook information”, “configuration information”, etc.
  • N1 and N2 or PCSI-RS can be used to determine the value of P tot in the UE, where P tot is the total number of candidate spatial basis vectors, or the total number of candidate ports.
  • P tot N1 N2 , or ⁇ and PCSI-RS can be used to determine the port number L of the first port.
  • the codebook parameter further includes first quantity information, and the first quantity information is used to determine the i-th group of processing pairs.
  • the number of the first processing objects in the image, the i-th group of processing objects is any K groups of processing objects, and i is a positive integer less than or equal to K.
  • the terminal groups the current candidate spatial basis vectors or the current candidate ports into K groups of candidate spatial basis vectors or K groups of candidate ports.
  • the number of spatial basis vectors in the i-th group of spatial basis vectors can be indicated by the network device through first quantity information, or the number of candidate ports in the i-th group of candidate ports can be indicated by the network device through first quantity information.
  • the i-th group of spatial basis vectors is any group of candidate spatial basis vectors in the K groups of candidate spatial basis vectors
  • the i-th group of candidate ports is any group of candidate ports in the K groups of candidate ports.
  • i is a positive integer less than or equal to K.
  • the number of ports is the total number of ports of one or more CSI-RS resources, and the number of ports of each CSI-RS resource is equal.
  • the network device needs to configure one or more CSI-RS resources for the terminal for CSI transmission, and configure the total number of ports of one or more CSI-RS resources through codebook parameters, and the number of ports of each CSI-RS resource is equal, so that the terminal determines the number of ports corresponding to each CSI-RS resource for subsequent CSI feedback.
  • step S2102 the terminal groups the spatial basis vectors to generate K groups of spatial basis vectors, where K is a positive integer.
  • the total number of candidate spatial basis vectors included in the nth orthogonal spatial basis vector group is P tot .
  • the terminal randomly divides all candidate spatial basis vectors in each orthogonal spatial basis vector group into K groups of spatial basis vectors.
  • the terminal selects spatial basis vectors that need to be indicated and reported from the K groups of spatial basis vectors.
  • K is a positive integer
  • the number of candidate spatial basis vectors in each group of spatial basis vectors is P i
  • i is a positive integer less than or equal to K.
  • the P i in each group of spatial basis vectors can be the same or different.
  • spatial basis vectors are a set of vectors in physical space, commonly used to describe signal transmission and reception in a multi-antenna (port) system.
  • a multi-antenna (port) system each antenna processes and handles the transmitted and received signals, and the signals processed by these antennas can be described by a set of spatial basis vectors.
  • spatial basis vectors can be used to represent signal transmission at different locations and directions in the system.
  • beamforming and spatial multiplexing can be implemented, thereby improving signal transmission reliability and capacity.
  • MIMO system multiple-input, multiple-output system
  • spatial basis vectors represent the spatial correlation between different antennas.
  • the terminal can encode the selected spatial basis vectors based on the codebook parameters sent by the network device, generate indication information, and then send it to the network device.
  • the spatial basis vectors can be used by the network device to perform precoding calculations for downlink data transmission.
  • the terminal generates K groups of spatial basis vectors based on the above grouping, analyzes the current network environment, selects the first spatial basis vector that needs to be indicated and reported from the K groups of spatial basis vectors, and then uses the codebook parameters as a reference to encode the first spatial basis vector for the indication report, generates indication information, and indicates the spatial basis vector selected by the terminal to the network device through the indication information.
  • the number of bits of the first bit information is wherein, O 1 and O 2 are orthogonal groups corresponding to the first orthogonal spatial basis vector group.
  • the above-mentioned spatial basis vectors are spatial basis vectors in the first orthogonal spatial basis vector group.
  • the terminal groups all candidate spatial basis vectors in the first orthogonal spatial basis vector group to generate K groups of spatial basis vectors. Then, based on the current network environment, the terminal selects a spatial basis vector from the K groups of spatial basis vectors to determine the first spatial basis vector. Therefore, the first spatial basis vector is a spatial basis vector in the first orthogonal spatial basis vector group.
  • the first orthogonal spatial basis vector group is a spatial basis vector group in a single polarization direction.
  • a single polarization direction refers to the direction in which the electric field or magnetic field oscillates during the propagation of electromagnetic waves.
  • polarization is generally used to describe the mode and characteristics of electromagnetic wave propagation. Common polarization directions include horizontal polarization, vertical polarization, and circular polarization. In horizontal polarization, the electric field oscillation is parallel to the ground, while in vertical polarization, the electric field oscillation is perpendicular to the ground.
  • Circular polarization includes right-hand circular polarization and left-hand circular polarization, in which the horizontal and vertical components (orthogonal components) of the electric field oscillate with the same amplitude and phase.
  • a single polarization direction refers to a specific polarization direction among the above polarization directions.
  • a specific polarization direction is used for a specific antenna or communication system to meet signal transmission requirements. Selecting a specific polarization direction can help reduce multipath interference, improve signal quality, and enhance the performance of the communication system.
  • the spatial basis vector group in a single polarization direction is grouped, and The orthogonal spatial basis vectors in the single polarization direction selected by the terminal are indicated and reported.
  • the indication information includes second information, where the second information is used to indicate the first spatial basis vector.
  • the indication information includes second information, which can indicate all first spatial basis vectors selected by the terminal in each group of spatial basis vectors, and can also be used to indicate the first spatial basis vectors selected by the terminal in each group of spatial basis vectors.
  • the second information includes fourth bit information.
  • the fourth bit information is used to indicate the first spatial basis vector, and the number of bits of the fourth bit information is
  • Li is the number information of the first spatial basis vector in the i-th group of spatial basis vectors
  • Pi is the total number of spatial basis vectors in the i-th group of spatial basis vectors.
  • the i-th group of spatial basis vectors is any K groups of spatial basis vectors.
  • the K groups of spatial basis vectors are orthogonal spatial basis vectors in a single polarization direction. Therefore, the fourth bit of information is used to indicate the first orthogonal spatial basis vector in a single polarization direction.
  • the indication information further includes first information, where the first information is used to indicate quantity information of the first spatial basis vectors.
  • the first spatial basis vector selected by the terminal is indicated by indication information, wherein the first information is used to indicate the total number of first spatial basis vectors selected by the terminal from K groups of spatial basis vectors, and the second information is used to indicate each spatial basis vector selected by the terminal from the i-th group of spatial basis vectors.
  • the terminal when the terminal indicates the first spatial basis vector selected by each group, after determining the number of first spatial basis vectors in other groups, the number of first spatial basis vectors in the Kth group of spatial basis vectors can be obtained by: Therefore, when the terminal indicates and reports the K groups of selected first spatial basis vectors, it can only report the second information to indicate the first spatial basis vectors selected in the K-th group of spatial basis vectors, without reporting the first information to indicate the number of first spatial basis vectors in the K-th group of spatial basis vectors. That is, in the process of indicating and reporting through indication information, the first information does not exist in some indication information, and only the second information in the indication information needs to be used to report the first spatial basis vectors selected by the terminal.
  • the first information includes second bit information, and the second bit information is used to indicate the number information of the first spatial basis vectors.
  • the number of bits of the second bit information is: or Wherein L is the number information of the first spatial basis vectors configured by the network device, and L′′ represents the number of combinations of the number of optional spatial basis vectors in each group in K groups.
  • L is the number information of the first spatial basis vectors configured by the network
  • L′′ represents the number of combinations of the number of optional spatial basis vectors in each group in K groups.
  • the spatial basis vectors in the terminal are divided into 2 groups
  • the second bit information is used to indicate the number information of the first orthogonal spatial basis vectors in a single polarization direction. Therefore, or Used to indicate the number of first orthogonal spatial basis vectors in a single polarization direction.
  • the first information is carried by the first part of information
  • the second information is carried by the second part of information
  • the terminal reports the channel state information CSI through the first part of information and the second part of information.
  • the CSI reporting in the terminal is performed using two parts: a first part of information (Part 1) and a second part of information (Part 2).
  • Part 1 a first part of information
  • Part 2 a second part of information
  • the first information is reported by carrying the first part of information
  • the second information is reported by carrying the second part of information.
  • both the first information and the second information are carried by the second part of information, and the terminal reports CSI by using the first part of information and the second part of information.
  • the CSI reporting in the terminal is performed using two parts, namely, the first part of information (Part 1) and the second part of information (Part 2).
  • Part 1 the first part of information
  • Part 2 the second part of information
  • the first information and the second information in this embodiment are reported by carrying the second part of information.
  • Step S2104 The network device determines the first spatial basis vector according to the instruction information.
  • the network device decodes the indication information based on the codebook parameters according to the indication information, thereby determining the first spatial basis vector selected by the terminal.
  • the first spatial basis vector is used to perform precoding calculation for downlink data transmission.
  • Table 2 shows the overhead of the selected spatial basis vector when the number of candidate spatial basis vectors in the first and second groups is the same for different values of L 1 and L 2 :
  • the UE needs Indicates the selected spatial basis vector.
  • P tot is greater than 15
  • the combination values in Table 1 (including Table 1A and Table 1B) need to be expanded, resulting in the need for additional memory in the UE to store the expanded combination values.
  • the combination values in Table 1 can be directly used without additional UE memory to store other combination values.
  • the UE storage space does not need to be increased, and the indication reporting of the spatial basis vector selected by the UE is achieved when supporting larger transmit antenna ports.
  • the UE can select L1 and L2 spatial basis vectors from the two sets of candidate spatial basis vectors, respectively. Indicates the number of spatial basis vectors selected by each group.
  • the names of information, etc. are not limited to the names described in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “symbol”, “codeword”, “codebook”, “codeword”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
  • terms such as “uplink”, “uplink”, “physical uplink” can be interchangeable with each other, and terms such as “downlink”, “downlink”, “physical downlink” can be interchangeable with each other, and terms such as “side”, “sidelink”, “side communication”, “sidelink communication”, “direct connection”, “direct link”, “direct communication”, “direct link communication” can be interchangeable with each other.
  • DCI downlink control information
  • DL downlink
  • UL uplink
  • UL DCI uplink
  • synchronization signal SS
  • synchronization signal block SSB
  • reference signal RS
  • pilot pilot signal
  • terms such as “moment”, “time point”, “time”, and “time position” can be replaced with each other, and terms such as “duration”, “period”, “time window”, “window”, and “time” can be replaced with each other.
  • resource block (RB) Physical resource block (PRB)
  • SCG sub-carrier group
  • REG resource element group
  • PRB pair RB pair
  • RB pair RB pair
  • RE resource element
  • wireless access scheme and waveform can be used interchangeably.
  • frame radio frame
  • subframe slot
  • sub-slot sub-slot
  • mini-slot mini-slot
  • sub-slot sub-slot
  • mini-slot mini-slot
  • the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but is not limited thereto.
  • not expecting to receive can be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send” can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.
  • step S2101 and step S2102 may be executed in an interchanged order or simultaneously.
  • the network device sends the codebook parameters to the terminal, and the terminal groups the spatial basis vectors to generate K groups of spatial basis vectors, where K is a positive integer.
  • the terminal generates indication information based on the K groups of spatial basis vectors and the codebook parameters and sends it to the network device.
  • the network device determines the first spatial basis vector based on the indication information. This ensures that the indication overhead of the terminal's selected spatial basis vector remains unchanged or is reduced without increasing the terminal's memory. This enables the indication of the terminal's selected spatial basis vector to be reported, supporting transmission on larger antenna ports.
  • FIG2B is a schematic diagram of an interaction flow of a communication method according to an embodiment of the present disclosure.
  • the embodiment of the present disclosure relates to a communication method, and the method includes:
  • the terminal encodes the indication information to be reported based on the codebook parameters, generates a codebook and sends it to the network.
  • codebook parameters can be used for beamforming, antenna (port) selection, MIMO (Multiple-Input Multiple-Output) system transmission, and channel estimation.
  • the codebook parameter includes at least one of the following:
  • the codebook parameter further includes first quantity information, where the first quantity information is used to indicate the number of first processing objects in the i-th group of processing objects, where the i-th group of processing objects is any K groups of processing objects, and i is a positive integer less than or equal to K.
  • the number of ports is the total number of ports of one or more CSI-RS resources, and the number of ports of each CSI-RS resource is equal.
  • step S2201 can refer to the optional implementation of step S2101 in Figure 2A and other related parts in the embodiment involved in Figure 2A, which will not be repeated here.
  • Step S2202 The terminal groups the ports to generate K groups of ports, where K is a positive integer.
  • the total number of candidate ports included in the nth port group is P tot .
  • the terminal randomly divides all candidate ports in each candidate port group into K groups of candidate ports, and selects a first port for which an indication report is to be sent from the K groups of candidate ports.
  • K is a positive integer
  • the number of candidate ports in each group of candidate ports is P i
  • i is a positive integer less than or equal to K.
  • the P i in each group of candidate ports can be the same or different.
  • the port is the same as the antenna port, and the purpose of the terminal reporting the selected antenna port is to inform the base station or other communication equipment of the antenna port currently selected by the terminal.
  • the base station can better perform beamforming, signal negotiation and power control. At the same time, this also helps to reduce interference in multi-antenna systems and improve communication quality and system capacity.
  • the terminal reporting the information of the selected antenna port is also helpful in helping the network optimize the antenna selection (Antenna Selection) or beamforming (Beamforming) algorithm. It can also be used for multi-user interference elimination, beam tracking and other resource allocation decision-making processes.
  • the candidate ports in the candidate port group in the terminal are grouped to facilitate the subsequent separate indication of the ports selected in each group of candidate ports.
  • the terminal can reuse the stored combination coefficients to indicate the selected port, thereby avoiding the terminal adding new storage space to store the extended combination coefficients. While ensuring less feedback overhead, the port of the terminal in the candidate port is indicated and reported.
  • Step S2203 The terminal generates indication information according to the K groups of ports and codebook parameters and sends it to the network device.
  • the indication information is used to indicate the first port selected by the terminal.
  • the name of the indication information is not limited, and may be, for example, “port indication information”, “coding bit information”, “port coding information”, “port information”, etc.
  • the terminal generates K groups of candidate ports based on the above grouping, analyzes the current network environment, selects the first port that needs to be indicated and reported from the K groups of candidate ports, and then uses the codebook parameter as a reference to encode the first port indicated and reported, generates indication information, and indicates the port selected by the terminal to the network device by means of the indication information.
  • the indication information includes first bit information, where the first bit information is used to indicate the first orthogonal port group.
  • the number of bits of the first bit information is wherein, O 1 and O 2 are orthogonal groups corresponding to the first orthogonal port group.
  • the aforementioned ports are ports in the first orthogonal port group.
  • the terminal groups all candidate ports in the first orthogonal port group to generate K groups of ports. Then, based on the current network environment, the terminal selects a port from the K groups of ports to determine the first port. Therefore, the first port is a port in the first orthogonal port group.
  • the first orthogonal port group is a port group in a single polarization direction.
  • a single polarization direction refers to the direction in which the electric field or magnetic field oscillates during the propagation of electromagnetic waves.
  • polarization is generally used to describe the mode and characteristics of electromagnetic wave propagation. Common polarization directions include horizontal polarization, vertical polarization, and circular polarization. In horizontal polarization, the electric field oscillates parallel to the ground, while in vertical polarization, the electric field oscillates perpendicular to the ground.
  • Circular polarization includes right-hand circular polarization and left-hand circular polarization, in which the horizontal and vertical components (orthogonal components) of the electric field oscillate with the same amplitude and phase.
  • a single polarization direction refers to a specific polarization direction among the above polarization directions.
  • a specific polarization direction is used for a specific antenna or communication system to meet signal transmission requirements. Selecting a specific polarization direction can help reduce multipath interference, improve signal quality, and enhance the performance of the communication system.
  • port groups in a single polarization direction are grouped, and the orthogonal port in the single polarization direction selected by the terminal is indicated and reported.
  • the indication information includes second information, where the second information is used to indicate the first port.
  • the indication information includes the second information.
  • the second information may indicate all first ports selected by the terminal in each group of ports, and may also be used to indicate the first port selected by the terminal in each group of ports.
  • the second information includes fourth bit information.
  • the fourth bit information is used to indicate the first port, and the number of bits of the fourth bit information is
  • Li is the number information of the first port in the i-th group of ports
  • Pi is the total number of ports in the i-th group of ports.
  • the i-th group of ports is any K group of ports.
  • the indication information further includes first information, where the first information is used to indicate quantity information of the first port.
  • the first port selected by the terminal is indicated through indication information, wherein the first information is used to indicate the total number of first ports selected by the terminal from K groups of ports, and the second information is used to indicate each port selected by the terminal from the i-th group of ports.
  • the number of first ports in the Kth group of ports can be determined by: Therefore, when the terminal reports the indication of the K selected first ports, it can only report the second information to indicate the first port selected in the K group of ports, without reporting the first information to indicate the number of first ports in the K group of ports. That is, during the process of reporting the indication using indication information, some indication information does not contain the first information, and only the second information in the indication information is needed to report the first port selected by the terminal.
  • the first information includes third bit information.
  • the third bit information is used to indicate the quantity information of the first port, and the number of bits of the third bit information is or Wherein, L′ is the number of combinations of the number of selectable ports in each group of K groups, Pi is the number of ports in the i-th group of ports, the i-th group of ports is any K group of ports, and i is a positive integer less than or equal to K.
  • the second bit information is used to indicate the number information of the first orthogonal ports in a single polarization direction. Therefore, or Used to indicate the number of first orthogonal ports in a single polarization direction.
  • Step S2204 The network device determines the first port according to the instruction information.
  • the first port is used to perform precoding calculation for downlink data transmission.
  • P i is the total number of ports in the i-th group of ports, where i ⁇ K.
  • the number of ports selected in the K-th group is Therefore, the number of selected ports in group K does not need to be reported.
  • the UE when the UE provides feedback on the selected port, it can complete the feedback of the selected port based on the coefficient combination in Table 1. No additional UE memory is required to store the values of other combinations, thereby enabling the reporting of the UE's selected antenna port indication when supporting larger transmit antenna ports.
  • FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the embodiment of the present disclosure relates to a communication method, which is executed by a terminal. The method includes:
  • Step S3101 Receive codebook parameters sent by a network device.
  • the codebook parameter includes at least one of the following:
  • the port parameter information is used to instruct the terminal to determine the port number of the first port according to the port parameter information.
  • the codebook parameter includes first quantity information, where the first quantity information is used to indicate the number of first processing objects in the i-th group of processing objects, where the i-th group of processing objects is any K groups of processing objects, and i is a positive integer less than or equal to K.
  • Step S3102 group the processing objects to generate K groups of processing objects, where K is a positive integer.
  • the processing object includes a spatial basis vector
  • the first processing object includes a first spatial basis vector
  • the processing object comprises a port
  • the first processing object comprises a first port
  • step S3102 please refer to the optional implementation of step S2102 in Figure 2A and other related parts in the embodiment involved in Figure 2A, or refer to the optional implementation of step S2202 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.
  • Step S3103 Generate indication information based on the K groups of processing objects and codebook parameters and send it to the network device.
  • the indication information is used to indicate the first processing object selected by the terminal.
  • the indication information includes second information, and the second information is used to indicate the first processing object.
  • the indication information includes first information, and the first information is used to indicate quantity information of the first processing object.
  • the first information includes second bit information
  • the second bit information is used to indicate the number of the first spatial basis vectors
  • the number of bits of the second bit information is or
  • L is the number information of the first spatial basis vectors
  • L′′ represents the number of combinations of the number of optional spatial basis vectors in each group of K groups.
  • the first information includes a third bit of information, and the third bit of information is used to indicate the quantity information of the first port.
  • the number of bits of the third bit information is or Wherein, L′ is the number of combinations of the number of selectable ports in each group of K groups, Pi is the number of ports in the i-th group of ports, the i-th group of ports is any K group of ports, and i is a positive integer less than or equal to K.
  • the second information includes a fourth bit of information, the fourth bit of information is used to indicate the first processing object, and the number of bits of the fourth bit of information is
  • Li is the quantity information of the first processing object in the i-th group of processing objects
  • the i-th group of processing objects is any K groups of processing objects
  • i is a positive integer less than or equal to K.
  • the first information is carried by the first part of information
  • the second information is carried by the second part of information
  • the terminal reports the channel state information CSI through the first part of information and the second part of information.
  • both the first information and the second information are carried by the second part of information, and the terminal reports CSI through the first part of information and the second part of information.
  • step S3103 please refer to the optional implementation of step S2103 in Figure 2A and other related parts in the embodiment involved in Figure 2A, or refer to the optional implementation of step S2203 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.
  • codebook parameters sent by the network device are received, and processing objects are grouped to generate K groups of processing objects, where K is a positive integer.
  • indication information is generated and sent to the network device. This grouping of candidate processing objects ensures that the indication overhead of the terminal's selected processing object remains unchanged or is reduced while not increasing the terminal's memory. This enables the terminal to report the indication of the selected processing object when supporting transmission on a larger antenna port.
  • FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a communication method, which is executed by a network device. The method includes:
  • Step S4101 Send codebook parameters to the terminal.
  • the codebook parameter is used to instruct the terminal to group processing objects to generate K groups of processing objects, where K is a positive integer.
  • the codebook parameter includes at least one of the following:
  • the port parameter information is used to instruct the terminal to determine the port number of the first port according to the port parameter information.
  • the codebook parameter includes first quantity information, where the first quantity information is used to indicate the number of first processing objects in the i-th group of processing objects, where the i-th group of processing objects is any K groups of processing objects, and i is a positive integer less than or equal to K.
  • the number of ports is the total number of ports of one or more CSI-RS resources, and the number of ports of each CSI-RS resource is equal.
  • Step S4102 receiving instruction information sent by the terminal.
  • the indication information is used to indicate the first processing object selected by the terminal, and the indication information is generated by the terminal according to K groups of processing objects and codebook parameters.
  • the processing object includes a spatial basis vector
  • the first processing object includes a first spatial basis vector
  • the processing object comprises a port
  • the first processing object comprises a first port
  • the processing object includes second information, and the second information is used to indicate the first processing object.
  • the processing object includes first information, and the first information is used to indicate quantity information of the first processing object.
  • the first information includes second bit information
  • the second bit information is used to indicate the number of the first spatial basis vectors
  • the number of bits of the second bit information is or
  • L is the number information of the first spatial basis vectors
  • L′′ represents the number of combinations of the number of optional spatial basis vectors in each group of K groups.
  • the first information includes a third bit of information, the third bit of information is used to indicate the number of the first port, and the number of bits of the third bit of information is or
  • L′ is the number of combinations of the number of selectable ports in each group of K groups
  • Pi is the number of ports in the i-th group of ports
  • the i-th group of ports is any K group of ports
  • i is a positive integer less than or equal to K.
  • the second information includes a fourth bit of information, the fourth bit of information is used to indicate the first processing object, and the number of bits of the fourth bit of information is
  • Li is the quantity information of the first processing object in the i-th group of processing objects
  • the i-th group of processing objects is any K groups of processing objects
  • i is a positive integer less than or equal to K.
  • the first information is carried by the first part of information
  • the second information is carried by the second part of information
  • the terminal reports CSI through the first part of information and the second part of information.
  • both the first information and the second information are carried by the second part of information, and the terminal reports CSI through the first part of information and the second part of information.
  • a first processing object is determined based on the indication information.
  • the first processing object is used to perform precoding calculation for downlink data transmission.
  • step S4102 can refer to the optional implementation of step S2103 in Figure 2A and other related parts in the embodiment involved in Figure 2A, or refer to the optional implementation of step S2203 in Figure 2B and other related parts in the embodiment involved in Figure 2B, which will not be repeated here.
  • codebook parameters are sent to the terminal, and indication information sent by the terminal is received.
  • the indication information is used to indicate the first processing object selected by the terminal.
  • This grouping indicates the candidate processing objects, ensuring that the indication overhead of the terminal's selected processing object remains unchanged or is reduced while not increasing the terminal's memory. This enables reporting of the indication of the terminal's selected antenna port to support transmission on a larger number of antenna ports.
  • FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the embodiment of the present disclosure relates to a communication method, which includes:
  • Step S5101 The network device sends codebook parameters to the terminal.
  • the network device sends codebook parameters to the terminal, causing the terminal to encode the reported indication information based on the codebook parameters.
  • the terminal may encode the indication information to be reported based on the Rel-16 eType II, Rel-17 Type II PS codebook, and Rel-18 Type II Doppler codebook sent by the network device, and send the encoded codeword to the network device.
  • the codebook parameter includes at least one of the following:
  • the port parameter information ⁇ is used to instruct the terminal to determine the port number of the first port according to the port parameter information, where the first port is a port selected by the terminal.
  • N1 and N2 or PCSI-RS are used to determine the value of P tot in the UE.
  • P tot N1 N2
  • the codebook parameters also include Li , which is used to indicate the number of spatial basis vectors selected by the UE in each group of candidate spatial basis vectors in the first part of the above two parts of indication information, or the number of ports selected by the UE in each group of candidate ports.
  • step S5102 the terminal divides the candidate spatial basis vectors in the orthogonal candidate spatial basis vector group into K groups of candidate spatial basis vectors, or divides the candidate ports into K groups of candidate ports.
  • the total number of candidate spatial basis vectors included in the nth orthogonal spatial basis vector group is P tot , or the total number of candidate ports corresponding to the terminal is P tot
  • the candidate spatial basis vectors in each orthogonal spatial basis vector group are grouped to obtain K groups of candidate spatial basis vector groups, wherein the number of candidate spatial basis vectors in the i-th (i ⁇ [1, K]) group of candidate spatial basis vector groups is P i , and the number P i of each group of candidate spatial basis vectors can be the same or different.
  • the sum of the number of candidate spatial basis vectors in each group is the total number of candidate spatial basis vectors, and
  • P tot is the number of candidate spatial basis vectors in a polarization direction, or the number of ports in a polarization direction.
  • P tot refers to the number of spatial basis vectors included in the nth orthogonal candidate spatial basis vector group among all orthogonal candidate spatial basis vector groups.
  • the nth orthogonal spatial basis vector group can still be obtained by Instructions confirmed.
  • step S5103 the terminal indicates the selected L spatial basis vectors or L ports by reporting two parts of information.
  • the first part of the two-part indication information is used to indicate the number L i of spatial basis vectors selected by the UE to report in the i-th group of candidate spatial basis vectors, or the number L i of ports selected by the UE to report in the i-th group of ports.
  • the second part is used to indicate the L i spatial basis vectors selected in the i-th group.
  • there are 8 candidate spatial basis vectors in the n-th orthogonal candidate spatial basis vector group A, B, C, D, E, F, G, H; the 8 candidate spatial basis vectors are randomly grouped to generate 4 groups of orthogonal candidate spatial basis vectors, namely: (A, B), (C), (D, E, F), (G, H).
  • the UE analyzes the current network environment and determines the selection: Group 1 A, Group 3 E and Group 4 G and H as the spatial basis vectors to be reported, then indicates in the first part of the information: 1 in Group 1, 0 in Group 2, 1 in Group 3, 2 in Group 4, and indicates Group 1 A, Group 3 E, Group 4 G and H in the second part of the information.
  • the UE may not report the number Li in the first part of the information when reporting the indication based on the two parts of information.
  • the UE can or Indicates the total number of spatial basis vectors selected in the K groups of candidate spatial basis vectors, or the total number of ports selected in the K groups of candidate ports, where L "represents the number of combinations of the number of optional spatial basis vectors in each group in the K groups, or the number of combinations of the number of optional candidate ports in each group in the K groups of candidate ports.
  • the terminal selects the selected one of the i-th group of candidate spatial basis vectors or the i-th group of candidate ports based on the indication information.
  • the number of spatial basis vectors or ports in group K is equal to Therefore, the number of spatial basis vectors selected by the UE from the Kth group of candidate spatial basis vectors, or the number of ports selected by the UE from the Kth group of candidate ports, does not need to be reported, where i ⁇ K.
  • the i-th group selects L i spatial basis vectors or L i ports
  • the number of combinations of all spatial basis vectors or all ports selected by the UE is L'
  • the first part can be obtained by Indicates the number of spatial basis vectors selected by each group.
  • the UE can or Indicates the number of selected ports.
  • L′ is the number of combinations of the number of selectable ports in each group of ports.
  • Pi is the total number of ports in the i-th group of ports, where i ⁇ K. The number of ports selected by the UE in the K-th group is equal to Therefore, the number of ports selected by the UE from the Kth group of ports does not need to be reported.
  • the UE can Indicates the L i spatial basis vectors selected by the UE from the i group of candidate spatial basis vectors.
  • Step S5104 The network device determines the spatial basis vector or port selected by the terminal according to the indication information reported by the terminal.
  • the network device determines the spatial basis vector or port selected by the UE through the indication information, and the spatial basis vector or port is used for precoding calculation of downlink data transmission.
  • Table 2 below shows the overhead of the selected spatial basis vector when the number of candidate spatial basis vectors in the first and second groups is the same for different values of L1 and L2 :
  • the UE needs Indicates the selected spatial basis vector.
  • P tot is greater than 15
  • the combination values in Table 1 (including Table 1A and Table 1B) need to be expanded, resulting in the need for additional memory in the UE to store the expanded combination values.
  • the combination values in Table 1 can be directly used without additional UE memory to store other combination values. Therefore, while ensuring the indication overhead, the UE storage space does not need to be increased, and the indication reporting of the spatial basis vector selected by the UE is achieved when supporting larger transmit antenna ports.
  • the UE selects respectively from the two sets of candidate spatial basis vectors:
  • L the number of spatial basis vectors selected by each group.
  • P i is the total number of ports in the i-th group of ports, where i ⁇ K.
  • the number of ports selected in the K-th group is Therefore, the number of selected ports in group K does not need to be reported.
  • Table 5 shows the total overhead of the selected ports when L 1 and L 2 take different values.
  • the UE when the UE provides feedback on the selected port, it can complete the feedback of the selected port based on the coefficient combination in Table 1. No additional UE memory is required to store the values of other combinations, thereby enabling the reporting of the UE's selected antenna port indication when supporting larger transmit antenna ports.
  • the total candidate spatial basis vectors in the UE are divided into multiple groups, and then the spatial basis vectors selected in each group are indicated separately, thereby ensuring less feedback overhead and not increasing the terminal memory, and realizing the indication reporting of the spatial basis vector or port selected by the terminal when supporting a larger transmitting antenna port.
  • the communication device 8100 further includes one or more third transceivers 8102.
  • the third transceiver 8102 performs at least one of the communication steps, such as sending and/or receiving, in the above method, and the third processor 8101 performs at least one of the other steps.
  • the transceiver may include a receiver and/or a transmitter, and the receiver and transmitter may be separate or integrated.
  • transceiver transceiver unit, transceiver, transceiver circuit, interface circuit, and interface
  • transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable
  • receiver, receiving unit, receiver, and receiving circuit may be interchangeable.
  • the communication device 8100 further includes one or more third memories 8103 for storing data. Alternatively, all or part of the third memories 8103 may be located outside the communication device 8100.
  • the communication device 8100 may include one or more first interface circuits 8104.
  • the first interface circuit 8104 is connected to the third memories 8103.
  • the first interface circuit 8104 may be configured to receive data from the third memories 8103 or other devices, and to send data to the third processor 8101 or other devices. For example, the first interface circuit 8104 may read data stored in the third memories 8103 and send the data to the third processor 8101.
  • the communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG8 .
  • the communication device may be an independent device or may be part of a larger device.
  • FIG9 is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG9 , but the present invention is not limited thereto.
  • the chip 8200 further includes one or more second interface circuits 8202.
  • the terms interface circuit, interface, and transceiver pins are optionally interchangeable.
  • the chip 8200 further includes one or more fourth memories 8203 for storing data.
  • all or part of the fourth memories 8203 may be located external to the chip 8200.
  • the second interface circuit 8202 is connected to the fourth memory 8203.
  • the second interface circuit 8202 can be used to receive data from the fourth memory 8203 or other devices, or to send data to the fourth memory 8203 or other devices.
  • the second interface circuit 8202 can read data stored in the fourth memory 8203 and send the data to the fourth processor 8201.
  • the second interface circuit 8202 performs at least one of the communication steps, such as sending and/or receiving, in the above-described method.
  • the second interface circuit 8202 performing the communication steps, such as sending and/or receiving, in the above-described method means that the second interface circuit 8202 performs data exchange between the fourth processor 8201, the chip 8200, the fourth memory 8203, or the transceiver device.
  • the fourth processor 8201 performs at least one of the other steps.
  • modules and/or devices described in various embodiments can be arbitrarily combined or separated according to circumstances.
  • some or all steps can also be performed collaboratively by multiple modules and/or devices, which is not limited here.
  • the present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices.
  • the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.
  • the present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开涉及一种通信方法、终端、网络设备、系统及存储介质。该方法包括:接收网络设备发送的码本参数,对处理对象进行分组,生成K组处理对象,K为正整数,根据K组处理对象和码本参数,生成指示信息发送至网络设备。从而将候选处理对象进行分组指示,保证终端所选处理对象的指示开销不变或较少的同时不增加终端的内存,实现对终端所选处理对象的指示上报,以支持更大的天线端口传输。

Description

通信方法、终端、网络设备、系统及存储介质 技术领域
本公开涉及通信技术领域,尤其涉及一种通信方法、终端、网络设备、系统及存储介质。
背景技术
为了提升通信系统的频谱效率和覆盖范围,可以将目前支持的发送天线端口数由32扩展到最大可支持128。在更大发送天线端口的情况下,可采用Rel-16 eType II codebook(代码库)、Rel-17 Type II端口选择和Rel-18 Type IIDoppler(多普勒)codebook(代码库)实现CSI(Channel Status Information,信道状态信息)反馈。相关技术中,单个CSI-RS(Channel State Information-Reference Signal,信道状态信息参考信号)资源最大CSI-RS端口数为32,为了支持128的天线端口,基站需给终端配置多个CSI-RS资源,且每个CSI-RS资源的端口数均相等。
发明内容
为克服相关技术中空域基向量上报指示开销较大的技术问题,本公开提供了一种通信方法、终端、网络设备、系统及存储介质。
根据本公开实施例的第一方面,提出了一种通信方法,由终端执行,所述方法包括:
接收网络设备发送的码本参数;
对处理对象进行分组,生成K组处理对象,所述K为正整数;
根据所述K组处理对象和所述码本参数,生成指示信息发送至所述网络设备,所述指示信息用于指示所述终端选择的第一处理对象。
根据本公开实施例的第二方面,提出了一种通信方法,由网络设备执行,所述方法包括:
发送码本参数至终端,所述码本参数用于指示所述终端根据所述码本参数对处理对象进行分组,生成K组处理对象,所述K为正整数;
接收所述终端发送的指示信息,所述指示信息用于指示所述终端选择的第一处理对象,所述指示信息为所述终端根据所述K组处理对象和所述码本参数生成的。
根据本公开实施例的第三方面,提出了一种终端,包括:
收发模块,被配置为接收网络设备发送的码本参数;
处理模块,被配置为对处理对象进行分组,生成K组处理对象,所述K为正整数;
收发模块,被配置为根据所述K组处理对象和所述码本参数,生成指示信息发送至所述网络设备,所述指示信息用于指示所述终端选择的第一处理对象。
根据本公开实施例的第四方面,提出了一种网络设备,包括:
收发模块,被配置为发送码本参数至终端,所述码本参数用于指示所述终端对处理对象进行分组,生成K组处理对象,所述K为正整数;
收发模块,被配置为接收所述终端发送的指示信息,所述指示信息用于指示所述终端选择的第一处理对象,所述指示信息为所述终端根据所述K组处理对象和所述码本参数生成的。
根据本公开实施例的第五方面,提出了一种通信装置,包括:
一个或多个处理器;
其中,所述处理器用于执行本公开第一方面中任一项所述的通信方法。
根据本公开实施例的第六方面,提出了一种通信装置,包括:
一个或多个处理器;
其中,所述处理器用于执行版本公开第二方面中任一项所述的通信方法。
根据本公开实施例的第七方面,提出了一种通信系统,包括终端和网络设备,其中,所述终端被配置为实现本公开第一方面中任一项所述的通信方法,所述网络设备被配置为实现本公开第二方面中任一项所述的通信方法。
根据本公开实施例的第八方面,提出了一种存储介质,所述存储介质存储有指令,当所述指令在通信设备上运行时,使得所述通信设备执行如本公开第一方面中任一项所述的通信方法,或使得所述通信设备执行本公开第二方面中任一项所述的通信方法。
根据本公开实施例的第九方面,提出了一种计算机程序产品,包括计算机程序和/或指令,其特征在于,所述计算机程序和/或指令被通信设备执行时实现如本公开第一方面中任一项所述的通信方法,或所述计算机程序和/或指令被通信设备执行时实现本公开第二方面中任一项所述的通信方法。
在上述方案中,接收网络设备发送的码本参数,对处理对象进行分组,生成K组处理对象,K 为正整数,根据K组处理对象和码本参数,生成指示信息发送至网络设备,指示信息用于指示终端选择的第一处理对象。从而将候选处理对象进行分组指示,保证终端所选处理对象的指示开销不变或较少的同时不增加终端的内存,实现对终端所选处理对象的指示上报,以支持更大的天线端口传输。
附图说明
为了更清楚地说明本公开实施例中的技术方案,以下对实施例描述所需的附图进行介绍,以下附图仅仅是本公开的一些实施例,不对本公开的保护范围造成具体限制。
图1是根据本公开实施例提供的通信系统的架构的一个示例性示意图。
图2A是根据本公开实施例示出的通信方法的交互流程示意图。
图2B是根据本公开实施例示出的通信方法的交互流程示意图。
图3是根据本公开实施例示出的通信方法的流程示意图。
图4是根据本公开实施例示出的通信方法的流程示意图。
图5是根据本公开实施例示出的通信方法的流程示意图。
图6是根据本公开实施例提出的终端的结构示意图。
图7是根据本公开实施例提出的网络设备的结构示意图。
图8是根据本公开实施例提出的通信设备8100的结构示意图。
图9是根据本公开实施例提出的芯片8200的结构示意图。
具体实施方式
本公开实施例提出了一种通信方法、终端、网络设备、系统及存储介质。
根据本公开实施例的第一方面,提出了一种通信方法,由终端执行,所述方法包括:
接收网络设备发送的码本参数;
对处理对象进行分组,生成K组处理对象,所述K为正整数;
根据所述K组处理对象和所述码本参数,生成指示信息发送至所述网络设备,所述指示信息用于指示所述终端选择的第一处理对象。
结合第一方面的一些实施例,所述处理对象包括空域基向量,所述第一处理对象包括第一空域基向量。
结合第一方面的一些实施例,所述处理对象包括端口,所述第一处理对象包括第一端口。
结合第一方面的一些实施例,所述指示信息包括第一比特信息,所述第一比特信息用于指示第一正交空域基向量组,所述第一正交空域基向量组包括所述第一空域基向量。
结合第一方面的一些实施例,所述指示信息包括第二信息,所述第二信息用于指示所述第一处理对象。
结合第一方面的一些实施例,所述指示信息包括第一信息,所述第一信息用于指示所述第一处理对象的数量信息。
结合第一方面的一些实施例,所述第一信息包括第二比特信息,所述第二比特信息用于指示所述第一空域基向量的数量信息,所述第二比特信息的比特数为其中,所述L为所述第一空域基向量的数量信息,所述L″表示K组中各组可选空域基向量个数的组合数。
结合第一方面的一些实施例,所述第一信息包括第三比特信息,所述第三比特信息用于指示所述第一端口的数量信息,所述第三比特信息的比特数为其中,所述L′为K组中各组可选端口个数的组合数,所述Pi为第i组端口的端口数,所述第i组端口为任一所述K组端口,所述i为小于或等于所述K的正整数。
结合第一方面的一些实施例,所述第二信息包括第四比特信息,所述第四比特信息用于指示所述第一处理对象,所述第四比特信息的比特数为其中,所述Li为第i组处理对象中所述第一处理对象的数量信息,所述第i组处理对象为任一K组处理对象,所述i为小于或等于所述K的正整数。
结合第一方面的一些实施例,所述第一信息通过第一部分信息承载,所述第二信息通过第二部分信息承载,所述终端通过所述第一部分信息和所述第二部分信息上报信道状态信息CSI。
结合第一方面的一些实施例,所述第一信息和所述第二信息均通过第二部分信息承载,所述终端通过第一部分信息和所述第二部分信息上报CSI。
第二方面,本公开实施例提出了一种通信方法,由网络设备执行,所述方法包括:
发送码本参数至终端,所述码本参数用于指示所述终端根据所述码本参数对处理对象进行分组,生成K组处理对象,所述K为正整数;
接收所述终端发送的指示信息,所述指示信息用于指示所述终端选择的第一处理对象,所述指示信息为所述终端根据所述K组处理对象和所述码本参数生成的。
结合第二方面的一些实施例,所述处理对象包括空域基向量,所述第一处理对象包括第一空域基向量。
结合第二方面的一些实施例,所述处理对象包括端口,所述第一处理对象包括第一端口。
结合第二方面的一些实施例,所述处理对象包括第二信息,所述第二信息用于指示所述第一处理对象。
结合第二方面的一些实施例,所述处理对象包括第一信息,所述第一信息用于指示所述第一处理对象的数量信息。
结合第二方面的一些实施例,所述第一信息包括第二比特信息,所述第二比特信息用于指示所述第一空域基向量的数量信息,所述第二比特信息的比特数为其中,所述L为所述第一空域基向量的数量信息,所述L″表示K组中各组可选空域基向量个数的组合数。
结合第二方面的一些实施例,所述第一信息包括第三比特信息,所述第三比特信息用于指示所述第一端口的数量信息,所述第三比特信息的比特数为其中,所述L′为K组中各组可选端口个数的组合数,所述Pi为第i组端口的端口数,所述第i组端口为任一所述K组端口,所述i为小于或等于所述K的正整数。
结合第二方面的一些实施例,所述第二信息包括第四比特信息,所述第四比特信息用于指示所述第一处理对象,所述第四比特信息的比特数为其中,所述Li为第i组处理对象中所述第一处理对象的数量信息,所述第i组处理对象为任一K组处理对象,所述i为小于或等于所述K的正整数。
结合第二方面的一些实施例,所述第一信息通过第一部分信息承载,所述第二信息通过第二部分信息承载,所述终端通过所述第一部分信息和所述第二部分信息上报CSI。
结合第二方面的一些实施例,所述第一信息和所述第二信息均通过第二部分信息承载,所述终端通过第一部分信息和所述第二部分信息上报CSI。
结合第二方面的一些实施例,所述码本参数包括以下至少一项:
第一维度的端口数和第二维度的端口数;
所述第一空域基向量的数量信息;
信道状态信息参考信号CSI-RS对应的端口数量;
端口参数信息,所述端口参数信息用于指示所述终端根据所述端口参数信息,确定所述第一端口的端口数。
结合第二方面的一些实施例,所述码本参数包括第一数量信息,所述第一数量信息用于确定第i组处理对象中所述第一处理对象的数量,所述第i组处理对象为任一K组处理对象,所述i为小于或等于所述K的正整数。
结合第二方面的一些实施例,所述端口数量为一个或多个CSI-RS资源的端口总数,各个CSI-RS资源的端口数相等。
结合第二方面的一些实施例,所述方法还包括:
根据所述指示信息,确定所述第一处理对象,所述第一处理对象用于进行下行数据传输的预编码计算。
第三方面,本公开实施例提出了一种终端,包括:
收发模块,被配置为接收网络设备发送的码本参数;
处理模块,被配置为对处理对象进行分组,生成K组处理对象,所述K为正整数;
收发模块,被配置为根据所述K组处理对象和所述码本参数,生成指示信息发送至所述网络设备,所述指示信息用于指示所述终端选择的第一处理对象。
第四方面,本公开实施例提出了一种网络设备,包括:
收发模块,被配置为发送码本参数至终端,所述码本参数用于指示所述终端根据所述码本参数对处理对象进行分组,生成K组处理对象,所述K为正整数;
收发模块,被配置为接收所述终端发送的指示信息,所述指示信息用于指示所述终端选择的第一处理对象,所述指示信息为所述终端根据所述K组处理对象和所述码本参数生成的。
第五方面,本公开实施例提出了一种通信装置,包括:
一个或多个处理器;
其中,所述处理器用于执行本公开第一方面中任一项所述的通信方法。
第六方面,本公开实施例提出了一种通信装置,包括:
一个或多个处理器;
其中,所述处理器用于执行本公开第二方面中任一项所述的通信方法。
第七方面,本公开实施例提出了一种通信系统,包括终端和网络设备,其中,所述终端被配置为实现本公开第一方面中任一项所述的通信方法,所述网络设备被配置为实现本公开第二方面中任一项所述的通信方法。
第八方面,本公开实施例提出了一种存储介质,所述存储介质存储有指令,当所述指令在通信设备上运行时,使得所述通信设备执行如本公开第一方面中任一项所述的通信方法,或使得所述通信设备执行本公开第二方面中任一项所述的通信方法。
第九方面,本公开实施例提出了一种计算机程序产品,包括计算机程序和/或指令,所述计算机程序和/或指令被通信设备执行时实现如本公开第一方面中任一项所述的通信方法,或所述计算机程序和/或指令被通信设备执行时实现本公开第二方面中任一项所述的通信方法。
通过上述方式,接收网络设备发送的码本参数,对处理对象进行分组,生成K组处理对象,K为正整数,根据K组处理对象和码本参数,生成指示信息发送至网络设备,指示信息用于指示终端选择的第一处理对象。从而将候选处理对象进行分组指示,保证终端所选处理对象的指示开销不变或较少的同时不增加终端的内存,实现支持更大的天线端口传输时,对终端所选处理对象的指示上报。
可以理解地,上述终端、接入网设备、第一网元、第二网元、核心网设备、通信系统、存储介质、程序产品、计算机程序、芯片或芯片系统均用于执行本公开实施例所提出的方法。因此,其所能达到的有益效果可以参考对应方法中的有益效果,此处不再赘述。
本公开实施例提出了一种通信方法、终端、网络设备、系统及存储介质。在一些实施例中,通信方法与信息处理方法等术语可以相互替换,通信装置与信息处理装置等术语可以相互替换,信息处理系统、通信系统等术语可以相互替换。
本公开实施例并非穷举,仅为部分实施例的示意,不作为对本公开保护范围的具体限制。在不矛盾的情况下,某一实施例中的每个步骤均可以作为独立实施例来实施,且各步骤之间可以任意组合,例如,在某一实施例中去除部分步骤后的方案也可以作为独立实施例来实施,且在某一实施例中各步骤的顺序可以任意交换,另外,某一实施例中的可选实现方式可以任意组合;此外,各实施例之间可以任意组合,例如,不同实施例的部分或全部步骤可以任意组合,某一实施例可以与其他实施例的可选实现方式任意组合。
在各本公开实施例中,如果没有特殊说明以及逻辑冲突,各实施例之间的术语和/或描述具有一致性,且可以互相引用,不同实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本公开实施例中所使用的术语只是为了描述特定实施例的目的,而并非作为对本公开的限制。
在本公开实施例中,除非另有说明,以单数形式表示的元素,如“一个”、“一种”、“该”、“上述”、“所述”、“前述”、“这一”等,可以表示“一个且只有一个”,也可以表示“一个或多个”、“至少一个”等。例如,在翻译中使用如英语中的“a”、“an”、“the”等冠词(article)的情况下,冠词之后的名词可以理解为单数表达形式,也可以理解为复数表达形式。
在本公开实施例中,“多个”是指两个或两个以上。
在一些实施例中,“至少一者(至少一项、至少一个)(atleastoneof)”、“一个或多个(one or more)”、“多个(a plurality of)”、“多个(multiple)等术语可以相互替换。
在一些实施例中,“A、B中的至少一者”、“A和/或B”、“在一情况下A,在另一情况下B”、“响应于一情况A,响应于另一情况B”等记载方式,根据情况可以包括以下技术方案:在一些实施例中A(与B无关地执行A);在一些实施例中B(与A无关地执行B);在一些实施例中从A和B中选择执行(A和B被选择性执行);在一些实施例中A和B(A和B都被执行)。当有A、B、C等更多分支时也类似上述。
在一些实施例中,“A或B”等记载方式,根据情况可以包括以下技术方案:在一些实施例中A(与B无关地执行A);在一些实施例中B(与A无关地执行B);在一些实施例中从A和B中选择执行(A和B被选择性执行)。当有A、B、C等更多分支时也类似上述。
本公开实施例中的“第一”、“第二”等前缀词,仅仅为了区分不同的描述对象,不对描述对象的位置、顺序、优先级、数量或内容等构成限制,对描述对象的陈述参见权利要求或实施例中上下文的 描述,不应因为使用前缀词而构成多余的限制。例如,描述对象为“字段”,则“第一字段”和“第二字段”中“字段”之前的序数词并不限制“字段”之间的位置或顺序,“第一”和“第二”并不限制其修饰的“字段”是否在同一个消息中,也不限制“第一字段”和“第二字段”的先后顺序。再如,描述对象为“等级”,则“第一等级”和“第二等级”中“等级”之前的序数词并不限制“等级”之间的优先级。再如,描述对象的数量并不受序数词的限制,可以是一个或者多个,以“第一装置”为例,其中“装置”的数量可以是一个或者多个。此外,不同前缀词修饰的对象可以相同或不同,例如,描述对象为“装置”,则“第一装置”和“第二装置”可以是相同的装置或者不同的装置,其类型可以相同或不同;再如,描述对象为“信息”,则“第一信息”和“第二信息”可以是相同的信息或者不同的信息,其内容可以相同或不同。
在一些实施例中,“包括A”、“包含A”、“用于指示A”、“携带A”,可以解释为直接携带A,也可以解释为间接指示A。
在一些实施例中,“时频(time/frequency)”、“时频域”等术语是指时域和/或频域。
在一些实施例中,“响应于……”、“响应于确定……”、“在……的情况下”、“在……时”、“当……时”、“若……”、“如果……”等术语可以相互替换。
在一些实施例中,“大于”、“大于或等于”、“不小于”、“多于”、“多于或等于”、“不少于”、“高于”、“高于或等于”、“不低于”、“以上”等术语可以相互替换,“小于”、“小于或等于”、“不大于”、“少于”、“少于或等于”、“不多于”、“低于”、“低于或等于”、“不高于”、“以下”等术语可以相互替换。
在一些实施例中,装置等可以解释为实体的、也可以解释为虚拟的,其名称不限定于实施例中所记载的名称,“装置”、“设备(equipment)”、“设备(device)”、“电路”、“网元”、“节点”、“功能”、“单元”、“部件(section)”、“系统”、“网络”、“芯片”、“芯片系统”、“实体”、“主体”等术语可以相互替换。
在一些实施例中,“网络”可以解释为网络中包含的装置(例如,接入网设备、核心网设备等)。
在一些实施例中,“接入网设备(access network device,AN device)”、“无线接入网设备(radio access network device,RAN device)”、“基站(base station,BS)”、“无线基站(radio base station)”、“固定台(fixed station)”、“节点(node)”、“接入点(access point)”、“发送点(transmission point,TP)”、“接收点(reception point,RP)”、“发送和/或接收点(transmission/reception point,TRP)”、“面板(panel)”、“天线面板(antenna panel)”、“天线阵列(antenna array)”、“小区(cell)”、“宏小区(macro cell)”、“小型小区(small cell)”、“毫微微小区(femto cell)”、“微微小区(pico cell)”、“扇区(sector)”、“小区组(cell group)”、“服务小区”、“载波(carrier)”、“分量载波(component carrier)”、“带宽部分(bandwidth part,BWP)”等术语可以相互替换。
在一些实施例中,“终端(terminal)”、“终端设备(terminal device)”、“用户设备(user equipment,UE)”、“用户终端(user terminal)”、“移动台(mobile station,MS)”、“移动终端(mobile terminal,MT)”、订户站(subscriber station)、移动单元(mobile unit)、订户单元(subscriber unit)、无线单元(wireless unit)、远程单元(remote unit)、移动设备(mobiledevice)、无线设备(wireless device)、无线通信设备(wireless communication device)、远程设备(remote device)、移动订户站(mobile subscriber station)、接入终端(access terminal)、移动终端(mobile terminal)、无线终端(wireless terminal)、远程终端(remote terminal)、手持设备(handset)、用户代理(user agent)、移动客户端(mobile client)、客户端(client)等术语可以相互替换。
在一些实施例中,接入网设备、核心网设备、或网络设备可以被替换为终端。例如,针对将接入网设备、核心网设备、或网络设备以及终端间的通信置换为多个终端间的通信(例如,设备对设备(device-to-device,D2D)、车联网(vehicle-to-everything,V2X)等)的结构,也可以应用本公开的各实施例。在该情况下,也可以设为终端具有接入网设备所具有的全部或部分功能的结构。此外,“上行”、“下行”等术语也可以被替换为与终端间通信对应的术语(例如,“侧行(side)”)。例如,上行信道、下行信道等可以被替换为侧行信道,上行链路、下行链路等可以被替换为侧行链路。
在一些实施例中,终端可以被替换为接入网设备、核心网设备、或网络设备。在该情况下,也可以设为接入网设备、核心网设备、或网络设备具有终端所具有的全部或部分功能的结构。
在一些实施例中,获取数据、信息等可以遵照所在地国家的法律法规。
在一些实施例中,可以在得到用户同意后获取数据、信息等。
此外,本公开实施例的表格中的每一元素、每一行、或每一列均可以作为独立实施例来实施,任意元素、任意行、任意列的组合也可以作为独立实施例来实施。
图1是根据本公开实施例示出的通信系统的架构示意图。如图1所示,通信系统100包括终端(terminal)101和网络设备102。
在一些实施例中,终端101例如包括手机(mobile phone)、可穿戴设备、物联网设备、具备通信功能的汽车、智能汽车、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备中的至少一者,但不限于此。
在一些实施例中,网络设备102例如是将终端接入到无线网络的节点或设备,接入网设备可以包括5G通信系统中的演进节点B(evolved NodeB,eNB)、下一代演进节点B(next generation eNB,ng-eNB)、下一代节点B(next generation NodeB,gNB)、节点B(node B,NB)、家庭节点B(home node B,HNB)、家庭演进节点B(home evolved nodeB,HeNB)、无线回传设备、无线网络控制器(radio network controller,RNC)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、基带单元(base band unit,BBU)、移动交换中心、6G通信系统中的基站、开放型基站(Open RAN)、云基站(Cloud RAN)、其他通信系统中的基站、Wi-Fi系统中的接入节点中的至少一者,但不限于此。
在一些实施例中,本公开的技术方案可适用于Open RAN架构,此时,本公开实施例所涉及的接入网设备间或者接入网设备内的接口可变为Open RAN的内部接口,这些内部接口之间的流程和信息交互可以通过软件或者程序实现。
在一些实施例中,网络设备可以由集中单元(central unit,CU)与分布式单元(distributed unit,DU)组成的,其中,CU也可以称为控制单元(control unit),采用CU-DU的结构可以将接入网设备的协议层拆分开,部分协议层的功能放在CU集中控制,剩下部分或全部协议层的功能分布在DU中,由CU集中控制DU,但不限于此。
可以理解的是,本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案,并不构成对于本公开实施例提出的技术方案的限定,本领域普通技术人员可知,随着系统架构的演变和新业务场景的出现,本公开实施例提出的技术方案对于类似的技术问题同样适用。
下述本公开实施例可以应用于图1所示的通信系统100、或部分主体,但不限于此。图1所示的各主体是例示,通信系统可以包括图1中的全部或部分主体,也可以包括图1以外的其他主体,各主体数量和形态为任意,各主体可以是实体的也可以是虚拟的,各主体之间的连接关系是例示,各主体之间可以不连接也可以连接,其连接可以是任意方式,可以是直接连接也可以是间接连接,可以是有线连接也可以是无线连接。
本公开各实施例可以应用于长期演进(Long Term Evolution,LTE)、LTE-Advanced(LTE-A)、LTE-Beyond(LTE-B)、SUPER 3G、IMT-Advanced、第四代移动通信系统(4th generation mobile communication system,4G)、)、第五代移动通信系统(5th generation mobile communication system,5G)、5G新空口(new radio,NR)、未来无线接入(Future Radio Access,FRA)、新无线接入技术(New-Radio Access Technology,RAT)、新无线(New Radio,NR)、新无线接入(New radio access,NX)、未来一代无线接入(Future generation radio access,FX)、Global System for Mobile communications(GSM(注册商标))、CDMA2000、超移动宽带(Ultra Mobile Broadband,UMB)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(Ultra-WideBand,UWB)、蓝牙(Bluetooth(注册商标))、陆上公用移动通信网(Public Land Mobile Network,PLMN)网络、设备到设备(Device-to-Device,D2D)系统、机器到机器(Machine to Machine,M2M)系统、物联网(Internet of Things,IoT)系统、车联网(Vehicle-to-Everything,V2X)、利用其他通信方法的系统、基于它们而扩展的下一代系统等。此外,也可以将多个系统组合(例如,LTE或者LTE-A与5G的组合等)应用。
在一些实施例方式中,对于Rel-16 eType II码本和Rel-18 Type II多普勒码本的CSI反馈,在一个极化方向上,总的候选空域基向量(SD basis vector)个数为O1O2N1N2,可以把O1O2N1N2个候选SD basis vectors划分为O1O2个正交的候选SD basis vector组,每组包含N1N个候选SD basis vector。UE(User Equipment,用户设备)通过上报指示UE在单个极化方向上所选择的L个不同的SD basis vector,该SD basis vector可以用于进行信道状态信息反馈、波束成形和波束跟踪、多天线发射和接收配置以及网络优化等。其中,N1N表示单个极化方向上的CSI-RS(Channel Status Information-Reference Signal,信道状态信息参考信号)资源对应端口的数值,该NN2最大值为16,表示组合数计算,log2O1O用于指示UE选择的空域基向量对应的正交组。示例 的,还可以用于指示空域基向量采样后水平维的偏移量和垂直维的偏移量,表示在该候选空域基向量组内选择的L个SD basis vector。其中,两个极化方向上选择的L个SD basis vectors相同。
在一些实施例中,对于Rel-17 Type II端口选择码本,UE通过指示在单个极化方向上所选的L个不同的端口,其中,两个极化方向选择的L个SD basis vectors相同。
在一些实施例中,上述基于码本的CSI指示上报包括了Part-1(第一部分)和Part-2(第二部分)两部分上报,其中UE所选空域基向量或端口的指示信息放在了Part-2中上报。
在一些实施例中,对于Rel-16 eType II或Rel-18 Type II多普勒码本,相关技术中基于组合数计算的结果已通过表格方式给出,如表1A所示:
如上述表1A所示,任意一个组合数C(N1,N2)中N1=0-15,N2=1-4,其中上述表格需保存在UE内存中,UE可以基于上述表1A,通过相关协议所述的算法确定UE所选的SD basis vector。
在一些实施例中,对于Rel-17 Type II PS(Port selection,端口选择)码本,由于需要选择更大的端口个数值,因此在标准中额外配置了表1B来确定组合数C(N1,N2)的值。如表1B所示:

如表1B所示,用于指示Rel-17 Type II PS码本中,N1N2与组合系数C(N1,N2)之间的对应关系。
在一些实施例中,当通信系统支持的CSI-RS端口的端口数达到128时,UE需要使用更多的内存,用于存储上述组合系数对应的值,从而导致UE的内存增加。因此,本实施例中通过将总的候选空域基向量划分为多个组,然后对每个组中UE选择的空域基向量分别进行指示,从而在保证较少反馈开销且不增加UE内存的情况下,实现在支持较大发送天线端口时,对UE所选空域基向量的指示上报。
图2A是根据本公开实施例示出的通信方法的交互流程示意图。如图2A所示,本公开实施例涉及通信方法,上述方法包括:
步骤S2101,网络设备发送码本参数至终端。
在一些实施例中,终端基于码本参数对需要上报的指示信息进行编码,生成码本后发送至网络设备中。示例的,为提高传输效率,减少信号传输过程中的开销,通信系统中采用编码的方式传输相关信息,其中码本参数可用于进行波束赋形、天线(端口)选择、MIMO(Multiple-Input Multiple-Output,多输入多输出)系统传输和信道估计等。
在一些实施例中,码本参数的名称不做限定,其例如是“码本数据”、“码本配置”、“码本信息”、“配置信息”等。
可选地,在一些实施例中,码本参数包括以下至少一项:
第一维度的端口数和第二维度的端口数;
第一空域基向量的数量信息;
信道状态信息参考信号CSI-RS对应的端口数量;
端口参数信息,端口参数信息用于指示终端根据端口参数信息确定第一端口的端口数。
示例的,其中第一空域基向量为终端基于当前网络环境对多个候选空域基向量进行选择,确定指示上报的空域基向量,第一端口为终端基于当前网络环境对多个候选端口进行选择,确定指示上报的端口。第一维度的端口数N1和第二维度的端口数N2用于确定终端中候选空域基向量的总数,或终端中候选端口的总数。第一空域基向量的数量信息L为:网络设备指示终端可以选择上报的第一空域基向量的总数。CSI-RS对应的端口数量PCSI-RS为:网络设备指示当前码本类型下CSI-RS资源对应的端口数量。终端可以根据端口参数信息α确定选择的第一端口的端口数。
示例的,N1和N2或PCSI-RS可以用于确定UE中Ptot的值,其中Ptot为候选空域基向量的总数,或候选端口的总数,示例的,Ptot=N1N2,或者而α和PCSI-RS可以用于确定第一端口的端口数L,示例的,
可选地,在一些实施例中,码本参数还包括第一数量信息,第一数量信息用于确定第i组处理对 象中第一处理对象的数量,第i组处理对象为任一K组处理对象,i为小于或等于K的正整数。
示例的,本实施例中网络设备发送码本参数后,终端对当前候选空域基向量或当前候选端口进行分组,分成K组候选空域基向量或K组候选端口。其中,第i组空域基向量中空域基向量个数可以由网络设备通过第一数量信息进行指示,或第i组候选端口中候选端口个数可以由网络设备通过第一数量信息进行指示。该i组空域基向量为K组候选空域基向量中的任一组候选空域基向量,i组候选端口为K组候选端口中的任一组候选端口。i为小于或等于K的正整数。
可选地,在一些实施例中,端口数量为一个或多个CSI-RS资源的端口总数,各个CSI-RS资源的端口数相等。
示例的,在通信传输过程中,网络设备需要给终端配置一个或多个CSI-RS资源,用于进行CSI传输,通过码本参数配置一个或多个CSI-RS资源的端口总数,并且各个CSI-RS资源的端口数相等,从而使终端确定各个CSI-RS资源对应的端口数,用于后续进行CSI反馈。
步骤S2102,终端对空域基向量进行分组,生成K组空域基向量,K为正整数。
示例的,本实施例中第n个正交空域基向量组中包括总的候选空域基向量个数为Ptot,终端将每个正交空域基向量组中的所有候选空域基向量随机划分为K组空域基向量,终端从K组空域基向量中选择需要进行指示上报的空域基向量。其中,K为正整数,各组空域基向量中的候选空域基向量个数为Pi,i为小于或等于K的正整数,各组空域基向量中的Pi可以相同或不同。
示例的,空域基向量是处于物理空间中的一组向量,通常用于描述多天线(端口)系统中的信号传输和接收。在多天线(端口)系统中,每个天线都会对收发的信号进行加工和处理,而这些天线加工的信号可以用一组空域基向量来进行描述。示例的,空域基向量可用于表示系统中的不同位置和方向上的信号传输。在通信系统中,通过选择适当的空域基向量,可以实现波束赋形(beam forming)和空间复用(spatial multiplexing),从而提高信号传输的可靠性和容量。在MIMO系统中(多输入多输出系统),空域基向量为表示不同天线之间空间相关性的基础向量,该基向量可以帮助系统工作人员进行信道建模、波束赋形设计和多用户干扰消除等。本实施例中终端可以基于网络设备发送的码本参数,对选择的空域基向量进行编码,生成指示信息后发送至网络设备中,该空域基向量可用于网络设备中进行下行数据传输的预编码计算。
示例的,本实施例中对终端中的正交空域基向量组中的候选空域基向量进行分组,以方便后续对各组空域基向量中选择的空域基向量进行分别指示,对于多端口的编码传输,终端可以复用存储的组合系数进行空域基向量指示,从而避免终端增加新的存储空间来存储扩展的组合系数,在保证较少的反馈开销的情况下,对终端在分组候选空域基向量组中的空域基向量进行指示上报。
步骤S2103,终端根据K组空域基向量和码本参数,生成指示信息发送至网络设备。
在一些实施例中,指示信息用于指示终端选择的第一空域基向量。
在一些实施例中,对指示信息的名称不做限定,其例如是“编码比特信息”、“编码指示信息”、“空域基向量指示信息”、“空域基向量信息”等。
示例的,终端基于上述分组生成的K组空域基向量,通过对当前网络环境进行分析从K组空域基向量中选取需要指示上报的第一空域基向量,再将码本参数作为参考,对该指示上报的第一空域基向量进行编码,生成指示信息,通过指示信息的方式向网络设备指示终端选择的空域基向量。
在一些实施例中,指示信息包括第一比特信息,该第一比特信息用于指示第一正交空域基向量组。
在一些实施例中,第一比特信息的比特数为其中,O1O2为第一正交空域基向量组所对应的正交组。示例的,本实施例中上述空域基向量为该第一正交空域基向量组中的空域基向量,终端对该第一正交空域基向量组中的所有候选空域基向量进行分组,生成K组空域基向量后,再基于当前所处网络环境对该K组空域基向量中的空域基向量进行选择,确定第一空域基向量。因此,该第一空域基向量为第一正交空域基向量组中的空域基向量。
可选地,在一些实施例中,第一正交空域基向量组为单个极化方向上的空域基向量组。示例的,单个极化方向,指的是电磁波在传播过程中,电场或磁场振荡的方向。在无线通信和天线端口通信中,极化通常用于描述电磁波传播的方式和特性。普通的极化方向有水平极化、垂直极化和圆极化。在水平极化中,电场振荡是平行于地面的,而在垂直极化中,电场振荡是垂直于地面的。圆极化包括右旋圆极化和左旋圆极化,其中电场水平和垂直分量(正交分量)都以相同的幅度和相位进行振荡。单个极化方向是指上述极化方向中的某一特定极化方向,在无线通信场景中,特定的极化方向用于特定的天线或通信系统,以满足信号传输的要求。选择特定的极化方向可以帮助减少多径干扰、提高信号质量和提升通信系统的性能,本实施例中对单个极化方向上的空域基向量组进行分组,并 对终端选择的该单个极化方向上的正交空域基向量进行指示上报。
在一些实施例中,指示信息包括第二信息,该第二信息用于指示第一空域基向量。
示例的,本实施例中指示信息中包括第二信息,该第二信息可以指示终端在各组空域基向量中选择的所有第一空域基向量,还可以用于指示终端在各组空域基向量中分别选择的第一空域基向量。
可选地,在一些实施例中,第二信息包括第四比特信息。
在一些实施例中,第四比特信息用于指示第一空域基向量,该第四比特信息的比特数为其中,Li为第i组空域基向量中第一空域基向量的数量信息,Pi为第i组空域基向量中空域基向量的总数。第i组空域基向量为任一K组空域基向量。
可选地,在一些实施例中,K组空域基向量为单个极化方向上的正交空域基向量,因此,第四比特信息用于指示单个极化方向上的第一正交空域基向量。
可选地,在一些实施例中,指示信息还包括第一信息,第一信息用于指示第一空域基向量的数量信息。
示例的,通过指示信息对终端所选的第一空域基向量进行指示,其中第一信息用于指示终端从K组空域基向量中所选的第一空域基向量的总数,第二信息用于指示终端从第i组空域基向量中所选的各个空域基向量。
示例的,终端对各组所选的第一空域基向量进行指示时,在确定其他组中第一空域基向量的个数后,第K组空域基向量中的第一空域基向量的个数,可以通过:该方式进行计算。因此,终端在对K组所选第一空域基向量进行指示上报时,可以只上报第二信息用于指示在第K组空域基向量中所选择的第一空域基向量,而不用上报第一信息来指示第K组空域基向量中第一空域基向量的个数。也即,在通过指示信息进行指示上报的过程中,部分指示信息中不存在第一信息,只需要通过指示信息中的第二信息来上报终端选择的第一空域基向量。
在一些实施例中,第一信息包括第二比特信息,第二比特信息用于指示第一空域基向量的数量信息。
在一些实施例中,第二比特信息的比特数为:其中L为网络设备配置的第一空域基向量的数量信息,L″表示K组中各组可选空域基向量个数的组合数。例如,网络配置的第一空域基向量的数量信息L=4,将终端中的空域基向量分为2组,各组空域基向量中可选第一空域基向量个数的组合为:{0,4}、{1,3}、{2,2}、{3,1}、{4,0},则该组合数L″=5。
可选地,在一些实施例中,第二比特信息用于指示单个极化方向上的第一正交空域基向量的数量信息,因此,用于指示单个极化方向上第一正交空域基向量的数量。
在一些实施例中,第一信息通过第一部分信息承载,第二信息通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报信道状态信息CSI。
示例的,终端中的CSI上报采用第一部分信息(Part1)和第二部分信息(Part2)两部分进行上报,第一信息通过第一部分信息承载上报,第二信息通过第二部分信息承载上报。
可选地,在一些实施例中,第一信息和第二信息均通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报CSI。
示例的,终端中的CSI上报采用第一部分信息(Part1)和第二部分信息(Part2)两部分进行上报,通过第二部分信息承载上报本实施例中的第一信息和第二信息。
步骤S2104,网络设备根据指示信息,确定第一空域基向量。
示例的,网络设备根据指示信息,基于码本参数对该指示信息进行解码,从而确定终端选择的第一空域基向量。
在一些实施例中,第一空域基向量用于进行下行数据传输的预编码计算。
例如,网络设备配置了码本参数N1=8、N2=4和L=4,且该码本类型为Rel-16 eType II码本或Rel-18 Type II多普勒码本,UE向网络设备指示所选的空域基向量,对应的Ptot=N1N2=32。采用上述实施例中的两部分指示方法,先将Ptot=N1N2=32分为两组,每组包含16个候选空域基向量,也即P1=P2=16。对于第一部分的指示信息,UE通过指示第1组中所选空域基向量的个数,则第二组中L2=L-L1。对于第二部分的指示信息,UE通过上报指示在第一组中所选的L1个空域基向量,通过指示在第二组中所选的L2个空域基向量。示例的,基于上述实施例,UE还需要通过指示所选空域基向量的正交空域基向量组,也即经过采样后水平维和垂直维方向上的偏移量,若O1=O2=4,则需要4bits对该正交空域基向量组进行指示。示例的,下述表2给出了不同L1和L2取值,第一组和第二组候选空域基向量数相同时,所选空域基向量的中开销:

示例的,若第一组和第二组分别包含了P1=13,P2=19个候选空域基向量,也即P1≠P2时,下述表3给出了不同L1和L2取值时,所选空域基向量的总开销:
在一些实施例中,若采用相关技术中的指示方式,UE需要指示所选的空域基向量。但由于Ptot大于15,需要扩展上述表1(包括表1A和表1B)中的组合数值,导致UE中需要新增内存用于存储扩展的组合数值。基于上述表2可知,采用本实施例的分组和两部分上报方式,在某些取值下UE指示上报的bit信息可以减少2bits,例如L1=4,L2=0时,指示开销为4+3+11+0=18。在某些取值下UE指示上报的bit信息可以增加1bit,例如L1=1,L2=3时,指示开销为4+3+4+10=21。但本实施例中能够直接采用上述表1中的组合数值,而不需要额外增加UE内存以存储其他组合数值,从而在保证指示开销的情况下,不需要增加UE的存储空间,实现在支持较大发送天线端口时对UE所选的空域基向量的指示上报。
可选地,在一些实施例中,对于上述指示信息中的第一部分,UE在两组候选空域基向量中分别选择了L1和L2个空域基向量,其中L1和L2的所有可能组合数为:{0,4}、{1,3}、{2,2}、{3,1}、{4,0},共计L′=5种,对于第一部分可通过指示各组所选的空域基向量的个数,UE上报指示信息的中开销可以参见上述表2。该方式对于组的增加和不同L的取值情况下可以比采用指示节省部分bits。例如,当L=4分为4组时,采用组合的指示L′=35,则需要6bits进行指示,而采用 指示,因此,通过本实施例中采用组合的方式进行指示时,能节省3bits。
在一些实施例中,信息等的名称不限定于实施例中所记载的名称,“信息(information)”、“消息(message)”、“信号(signal)”、“信令(signaling)”、“报告(report)”、“配置(configuration)”、“指示(indication)”、“指令(instruction)”、“命令(command)”、“信道”、“参数(parameter)”、“域”、“字段”、“符号(symbol)”、“码元(symbol)”、“码本(codebook)”、“码字(codeword)”、“码点(codepoint)”、“比特(bit)”、“数据(data)”、“程序(program)”、“码片(chip)”等术语可以相互替换。
在一些实施例中,“码本”、“码字”、“预编码矩阵”等术语可以相互替换。例如,码本可以是一个或多个码字/预编码矩阵的合集。
在一些实施例中,“上行”、“上行链路”、“物理上行链路”等术语可以相互替换,“下行”、“下行链路”、“物理下行链路”等术语可以相互替换,“侧行(side)”、“侧行链路(sidelink)”、“侧行通信”、“侧行链路通信”、“直连”、“直连链路”、“直连通信”、“直连链路通信”等术语可以相互替换。
在一些实施例中,“下行链路控制信息(downlink control information,DCI)”、“下行链路(downlink,DL)分配(assignment)”、“DL DCI”、“上行链路(uplink,UL)许可(grant)”、“UL DCI”等术语可以相互替换。
在一些实施例中,“物理下行链路共享信道(physical downlink shared channel,PDSCH)”、“DL数据”等术语可以相互替换,“物理上行链路共享信道(physical uplink shared channel,PUSCH)”、“UL数据”等术语可以相互替换。
在一些实施例中,“无线(radio)”、“无线(wireless)”、“无线接入网(radio access network,RAN)”、“接入网(access network,AN)”、“基于RAN的(RAN-based)”等术语可以相互替换。
在一些实施例中,“搜索空间(search space)”、“搜索空间集(search space set)”、“搜索空间配 置(search space configuration)”、“搜索空间集配置(search space set configuration)”、“控制资源集(control resource set,CORESET)”、“CORESET配置”等术语可以相互替换。
在一些实施例中,“同步信号(synchronization signal,SS)”、“同步信号块(synchronization signal block,SSB)”、“参考信号(reference signal,RS)”、“导频(pilot)”、“导频信号(pilot signal)”等术语可以相互替换。
在一些实施例中,“时刻”、“时间点”、“时间”、“时间位置”等术语可以相互替换,“时长”、“时段”、“时间窗口”、“窗口”、“时间”等术语可以相互替换。
在一些实施例中,“分量载波(component carrier,CC)”、“小区(cell)”、“频率载波(frequency carrier)”、“载波频率(carrier frequency)”等术语可以相互替换。
在一些实施例中,“资源块(resource block,RB)”、“物理资源块(physical resource block,PRB)”、“子载波组(sub-carrier group,SCG)”、“资源元素组(resource element group,REG)”、“PRB对”、“RB对”、“资源元素(resource element,RE)”、“子载波(sub-carrier)”等术语可以相互替换。
在一些实施例中,无线接入方案(wireless access scheme)、波形(waveform)等术语可以相互替换。
在一些实施例中,“预编码(precoding)”、“预编码器(precoder)”、“权重(weight)”、“预编码权重(precoding weight)”、“准共址(quasi-co-location,QCL)”、“传输配置指示(transmission configuration indication,TCI)状态”、“空间关系(spatial relation)”、“空间域滤波器(spatial domain filter)”、“发送功率(transmission power)”、“相位旋转(phase rotation)”、“天线端口(antenna port)”、“天线端口组(antenna port group)”、“层(layer)”、“层数(the number of layers)”、“秩(rank)”、“资源(resource)”、“资源集(resource set)”、“资源组(resource group)”、“波束(beam)”、“波束宽度(beam width)”、“波束角度(beam angular degree)”、“天线(antenna)”、“天线元件(antenna element)”、“面板(panel)”等术语可以相互替换。
在一些实施例中,“帧(frame)”、“无线帧(radio frame)”、“子帧(subframe)”、“时隙(slot)”、“子时隙(sub-slot)”、“迷你时隙(mini-slot)”、“符号(symbol)”、“码元(symbol)”、“发送时间间隔(transmission time interval,TTI)”等术语可以相互替换。
在一些实施例中,“获取”、“获得”、“得到”、“接收”、“传输”、“双向传输”、“发送和/或接收”可以相互替换,其可以解释为从其他主体接收,从协议中获取,从高层获取,自身处理得到、自主实现等多种含义。
在一些实施例中,“发送”、“发射”、“上报”、“下发”、“传输”、“双向传输”、“发送和/或接收”等术语可以相互替换。
在一些实施例中,“特定(certain)”、“预定(preseted)”、“预设”、“设定”、“指示(indicated)”、“某一”、“任意”、“第一”等术语可以相互替换,“特定A”、“预定A”、“预设A”、“设定A”、“指示A”、“某一A”、“任意A”、“第一A”可以解释为在协议等中预先规定的A,也可以解释为通过设定、配置、或指示等得到的A,也可以解释为特定A、某一A、任意A、或第一A等,但不限于此。
在一些实施例中,判定或判断可以通过以1比特表示的值(0或1)来进行,也可以通过以真(true)或者假(false)表示的真假值(布尔值(boolean))来进行,也可以通过数值的比较(例如,与预定值的比较)来进行,但不限于此。
在一些实施例中,“不期待接收”可以解释为不在时域资源和/或频域资源上接收,也可以解释为在接收到数据等后,不对该数据等执行后续处理;“不期待发送”可以解释为不发送,也可以解释为发送但是不期待接收方对发送的内容做出响应。
在一些实施例中,步骤S2101、步骤S2102可以交换顺序或同时执行。
在一些实施例中,可参见图2所对应的说明书之前或之后记载的其他可选实现方式。
通过上述方式,网络设备发送码本参数至终端,终端对空域基向量进行分组,生成K组空域基向量,K为正整数,终端根据K组空域基向量和码本参数,生成指示信息发送至网络设备,网络设备根据指示信息,确定第一空域基向量。从而将候选空域基向量进行分组指示,保证终端所选空域基向量的指示开销不变或较少的同时不增加终端的内存,实现对终端所选空域基向量的指示上报,以支持更大的天线端口传输。
图2B是根据本公开实施例示出的通信方法的交互流程示意图,如图2B所示,本公开实施例涉及通信方法,上述方法包括:
步骤S2201,网络设备发送码本参数至终端。
在一些实施例中,终端基于码本参数对需要上报的指示信息进行编码,生成码本后发送至网络 设备中。示例的,为提高传输效率,减少信号传输过程中的开销,通信系统中采用编码的方式传输相关信息,其中码本参数可用于进行波束赋形、天线(端口)选择、MIMO(Multiple-Input Multiple-Output,多输入多输出)系统传输和信道估计等。
可选地,在一些实施例中,码本参数包括以下至少一项:
第一维度的端口数和第二维度的端口数;
第一空域基向量的数量信息;
信道状态信息参考信号CSI-RS对应的端口数量;
端口参数信息,端口参数信息用于指示终端根据端口参数信息确定第一端口的端口数。
可选地,在一些实施例中,码本参数还包括第一数量信息,第一数量信息用于指示第i组处理对象中第一处理对象的数量,第i组处理对象为任一K组处理对象,i为小于或等于K的正整数。
可选地,在一些实施例中,端口数量为一个或多个CSI-RS资源的端口总数,各个CSI-RS资源的端口数相等。
步骤S2201的可选实现方式可以参见图2A的步骤S2101的可选实现方式、及图2A所涉及的实施例中其他关联部分,此处不再赘述。
步骤S2202,终端对端口进行分组,生成K组端口,K为正整数。
示例的,本实施例中第n个端口组中包括总的候选端口个数为Ptot,终端将每个候选端口组中的所有候选端口随机划分为K组候选端口,终端从K组候选端口中选择需要进行指示上报的第一端口。其中,K为正整数,各组候选端口中的候选端口个数为Pi,i为小于或等于K的正整数,各组候选端口中的Pi可以相同或不同。
示例的,本实施例中端口同天线端口,终端上报所选天线端口的作用在于告知基站或者其他通信设备终端当前所选择的天线端口。通过确定终端所选的天线端口,基站可以更好地进行波束赋形,信号协商和功率控制。同时,这也有助于减少多天线系统中的干扰,提高通信质量和系统容量。终端上报所选天线端口的信息,还有利于帮助网络进行天线选择(Antenna Selection)或者波束赋形(Beamforming)算法的优化。还可以用于进行多用户干扰消除、波束跟踪以及其他资源分配的决策过程。
示例的,对终端中候选端口组中的候选端口进行分组,以方便后续对各组候选端口中选择的端口进行分别指示,对于多端口的编码传输,终端可以复用存储的组合系数进行所选端口的指示,从而避免终端增加新的存储空间来存储扩展的组合系数,在保证较少的反馈开销的情况下,对终端在候选端口中的端口进行指示上报。
步骤S2203,终端根据K组端口和码本参数,生成指示信息发送至网络设备。
在一些实施例中,指示信息用于指示终端选择的第一端口。
在一些实施例中,对指示信息的名称不作限定,其例如是“端口指示信息”、“编码比特信息”、“端口编码信息”、“端口信息”等。
示例的,终端基于上述分组生成的K组候选端口,通过对当前网络环境进行分析从K组候选端口中选取需要指示上报的第一端口,再将码本参数作为参考,对该指示上报的第一端口进行编码,生成指示信息,通过指示信息的方式向网络设备指示终端选择的端口。
在一些实施例中,指示信息包括第一比特信息,该第一比特信息用于指示第一正交端口组。
在一些实施例中,第一比特信息的比特数为其中,O1O2为第一正交端口组所对应的正交组。示例的,本实施例中上述端口为该第一正交端口组中的端口,终端对该第一正交端口组中的所有候选端口进行分组,生成K组端口后,再基于当前所处网络环境对该K组端口中的端口进行选择,确定第一端口。因此,该第一端口为第一正交端口组中的端口。
可选地,在一些实施例中,第一正交端口组为单个极化方向上的端口组。示例的,单个极化方向,指的是电磁波在传播过程中,电场或磁场振荡的方向。在无线通信和天线端口通信中,极化通常用于描述电磁波传播的方式和特性。普通的极化方向有水平极化、垂直极化和圆极化。在水平极化中,电场振荡是平行于地面的,而在垂直极化中,电场振荡是垂直于地面的。圆极化包括右旋圆极化和左旋圆极化,其中电场水平和垂直分量(正交分量)都以相同的幅度和相位进行振荡。单个极化方向是指上述极化方向中的某一特定极化方向,在无线通信场景中,特定的极化方向用于特定的天线或通信系统,以满足信号传输的要求。选择特定的极化方向可以帮助减少多径干扰、提高信号质量和提升通信系统的性能,本实施例中对单个极化方向上的端口组进行分组,并对终端选择的该单个极化方向上的正交端口进行指示上报。
在一些实施例中,指示信息包括第二信息,该第二信息用于指示第一端口。
示例的,本实施例中指示信息中包括第二信息,该第二信息可以指示终端在各组端口中选择的所有第一端口,还可以用于指示终端在各组端口中分别选择的第一端口。
可选地,在一些实施例中,第二信息包括第四比特信息。
在一些实施例中,第四比特信息用于指示第一端口,该第四比特信息的比特数为其中,Li为第i组端口中第一端口的数量信息,Pi为第i组端口中端口的总数。第i组端口为任一K组端口。
可选地,在一些实施例中,K组端口为单个极化方向上的正交端口,因此,第四比特信息用于指示单个极化方向上的第一正交端口。
可选地,在一些实施例中,指示信息还包括第一信息,第一信息用于指示第一端口的数量信息。
示例的,通过指示信息对终端所选的第一端口进行指示,其中第一信息用于指示终端从K组端口中所选的第一端口的总数,第二信息用于指示终端从第i组端口中所选的各个端口。
示例的,终端对各组所选的第一端口进行指示时,在确定其他组中第一端口的个数后,第K组端口中的第一端口的个数,可以通过:该方式进行计算。因此,终端在对K组所选第一端口进行指示上报时,可以只上报第二信息用于指示在第K组端口中所选择的第一端口,而不用上报第一信息来指示第K组端口中第一端口的个数。也即,在通过指示信息进行指示上报的过程中,部分指示信息中不存在第一信息,只需要通过指示信息中的第二信息来上报终端选择的第一端口。
在一些实施例中,第一信息包括第三比特信息。
在一些实施例中,第三比特信息用于指示第一端口的数量信息,第三比特信息的比特数为 其中,L′为K组中各组可选端口个数的组合数,Pi为第i组端口的端口数,第i组端口为任一K组端口,i为小于或等于K的正整数。
示例的,第三比特信息用于指示第一端口的数量,第三比特信息的比特数为:其中,L′为K组中各组可选端口个数的组合数,Pi为第i组端口的端口数。例如,网络设备配置的端口总数为参数确定UE所选端口数:把Ptot分为2组,每组包含16个端口,每组可选端口个数的组合为:{8,16}、{9,15}…、{16,8},则L′=9。
可选地,在一些实施例中,第二比特信息用于指示单个极化方向上的第一正交端口的数量信息,因此,用于指示单个极化方向上第一正交端口的数量。
在一些实施例中,第一信息通过第一部分信息承载,第二信息通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报信道状态信息CSI。
示例的,终端中的CSI上报采用第一部分信息(Part1)和第二部分信息(Part2)两部分进行上报,第一信息通过第一部分信息承载上报,第二信息通过第二部分信息承载上报。
可选地,在一些实施例中,第一信息和第二信息均通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报CSI。
示例的,终端中的CSI上报采用第一部分信息(Part1)和第二部分信息(Part2)两部分进行上报,通过第二部分信息承载上报本实施例中的第一信息和第二信息。
步骤S2204,网络设备根据指示信息,确定第一端口。
示例的,网络设备根据指示信息,基于码本参数对该指示信息进行解码,从而确定终端选择的第一端口。
在一些实施例中,第一端口用于进行下行数据传输的预编码计算。
在一些实施例中,网络设备给终端配置了K=2个CSI-RS资源,每个CSI-RS资源有32个端口,该码本类型为Rel-17 Type II,码本,PCSI-RS=64,且网络设备还配置了参数确定了UE所选的端口数为若将Ptot分为2组,每组中包含16个端口也即P1=P2=16。对于第一部分中的端口个数指示,Pi为第i组端口中的总端口数,其中i<K。示例的,第K组中所选端口的端口个数为因此第K组中所选端口的端口个数不需要上报指示。每组端口中可选端口的端口个数组合有{8,16}、{9,15}…、{16,8}共有9中,也即L′=9。下述表4给出了P1=P2=16,L1和L2取不同值时,所选端口的总开销:

若第一组和第二组分别包含了P1=13和P2=19个端口,也即P1≠P2时,表5给出了L1和L2取不同值时,所选端口的总开销。
基于上述开销,UE在对所选端口进行反馈时,可以基于上述表1中的系数组合,完成所选端口的反馈。不需要额外增加UE内存一存储其他组合数的值,从而实现支持较大发送天线端口时对UE所选天线端口的指示上报。
通过上述方式,网络设备发送码本参数至终端,终端对端口进行分组,生成K组端口,K为正整数,终端根据K组端口和码本参数,生成指示信息发送至网络设备,网络设备根据指示信息,确定第一端口。从而将候选端口进行分组指示,保证终端所选端口的指示开销不变或较少的同时不增加终端的内存,实现对终端所选天线端口的指示上报,以支持更大的天线端口传输。
图3是根据本公开实施例示出的通信方法的流程示意图,如图3所示,本公开实施例涉及通信方法,由终端执行,上述方法包括:
步骤S3101,接收网络设备发送的码本参数。
在一些实施例中,码本参数包括以下至少一项:
第一维度的端口数和第二维度的端口数;
第一空域基向量的数量信息;
信道状态信息参考信号CSI-RS对应的端口数量;
端口参数信息,端口参数信息用于指示终端根据端口参数信息,确定第一端口的端口数。
在一些实施例中,码本参数包括第一数量信息,第一数量信息用于指示第i组处理对象中第一处理对象的数量,第i组处理对象为任一K组处理对象,i为小于或等于K的正整数。
步骤S3102,对处理对象进行分组,生成K组处理对象,K为正整数。
在一些实施例中,处理对象包括空域基向量,第一处理对象包括第一空域基向量。
所述指示信息包括第一比特信息,所述第一比特信息用于指示第一正交空域基向量组,所述第一正交空域基向量组包括所述第一空域基向量。
在一些实施例中,处理对象包括端口,第一处理对象包括第一端口。
步骤S3102的可选实现方式可以参见图2A的步骤S2102的可选实现方式、及图2A所涉及的实施例中其他关联部分,或参见图2B的步骤S2202的可选实现方式、及图2B所涉及的实施例中其他关联部分,此处不再赘述。
步骤S3103,根据K组处理对象和码本参数,生成指示信息发送至网络设备。
在一些实施例中,指示信息用于指示终端选择的第一处理对象。
在一些实施例中,指示信息包括第二信息,第二信息用于指示第一处理对象。
在一些实施例中,指示信息包括第一信息,第一信息用于指示第一处理对象的数量信息。
在一些实施例中,第一信息包括第二比特信息,第二比特信息用于指示第一空域基向量的数量信息,第二比特信息的比特数为其中,L为第一空域基向量的数量信息,L″表示K组中各组可选空域基向量个数的组合数。
在一些实施例中,第一信息包括第三比特信息,第三比特信息用于指示第一端口的数量信息, 第三比特信息的比特数为其中,L′为K组中各组可选端口个数的组合数,Pi为第i组端口的端口数,第i组端口为任一K组端口,i为小于或等于K的正整数。
在一些实施例中,第二信息包括第四比特信息,第四比特信息用于指示第一处理对象,第四比特信息的比特数为其中,Li为第i组处理对象中第一处理对象的数量信息,第i组处理对象为任一K组处理对象,i为小于或等于K的正整数。
在一些实施例中,第一信息通过第一部分信息承载,第二信息通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报信道状态信息CSI。
在一些实施例中,第一信息和第二信息均通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报CSI。
步骤S3103的可选实现方式可以参见图2A的步骤S2103的可选实现方式、及图2A所涉及的实施例中其他关联部分,或参见图2B的步骤S2203的可选实现方式、及图2B所涉及的实施例中其他关联部分,此处不再赘述。
通过上述方式,接收网络设备发送的码本参数,对处理对象进行分组,生成K组处理对象,K为正整数,根据K组处理对象和码本参数,生成指示信息发送至网络设备。从而将候选处理对象进行分组指示,保证终端所选处理对象的指示开销不变或较少的同时不增加终端的内存,实现支持更大的天线端口传输时,对终端所选处理对象的指示上报。
图4是根据本公开实施例示出的通信方法的流程示意图,如图4所示,本公开实施例涉及通信方法,由网络设备执行,上述方法包括:
步骤S4101,发送码本参数至终端。
在一些实施例中,码本参数用于指示终端对处理对象进行分组,生成K组处理对象,K为正整数。
在一些实施例中,码本参数包括以下至少一项:
第一维度的端口数和第二维度的端口数;
第一空域基向量的数量信息;
信道状态信息参考信号CSI-RS对应的端口数量;
端口参数信息,端口参数信息用于指示终端根据端口参数信息,确定第一端口的端口数。
在一些实施例中,码本参数包括第一数量信息,第一数量信息用于指示第i组处理对象中第一处理对象的数量,第i组处理对象为任一K组处理对象,i为小于或等于K的正整数。
在一些实施例中,端口数量为一个或多个CSI-RS资源的端口总数,各个CSI-RS资源的端口数相等。
步骤S4102,接收终端发送的指示信息。
在一些实施例中,指示信息用于指示终端选择的第一处理对象,指示信息为终端根据K组处理对象和码本参数生成的。
在一些实施例中,处理对象包括空域基向量,第一处理对象包括第一空域基向量。
在一些实施例中,处理对象包括端口,第一处理对象包括第一端口。
在一些实施例中,处理对象包括第二信息,第二信息用于指示第一处理对象。
在一些实施例中,处理对象包括第一信息,第一信息用于指示第一处理对象的数量信息。
在一些实施例中,第一信息包括第二比特信息,第二比特信息用于指示第一空域基向量的数量信息,第二比特信息的比特数为其中,L为第一空域基向量的数量信息,L″表示K组中各组可选空域基向量个数的组合数。
在一些实施例中,第一信息包括第三比特信息,第三比特信息用于指示第一端口的数量信息,第三比特信息的比特数为其中,L′为K组中各组可选端口个数的组合数,Pi为第i组端口的端口数,第i组端口为任一K组端口,i为小于或等于K的正整数。
在一些实施例中,第二信息包括第四比特信息,第四比特信息用于指示第一处理对象,第四比特信息的比特数为其中,Li为第i组处理对象中第一处理对象的数量信息,第i组处理对象为任一K组处理对象,i为小于或等于K的正整数。
在一些实施例中,第一信息通过第一部分信息承载,第二信息通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报CSI。
在一些实施例中,第一信息和第二信息均通过第二部分信息承载,终端通过第一部分信息和第二部分信息上报CSI。
在一些实施例中,根据所述指示信息,确定第一处理对象。
在一些实施例中,第一处理对象用于进行下行数据传输的预编码计算。
步骤S4102的可选实现方式可以参见图2A的步骤S2103的可选实现方式、及图2A所涉及的实施例中其他关联部分,或参见图2B的步骤S2203的可选实现方式、及图2B所涉及的实施例中其他关联部分,此处不再赘述。
通过上述方式,发送码本参数至终端,接收终端发送的指示信息,指示信息用于指示终端选择的第一处理对象。从而将候选处理对象进行分组指示,保证终端所选处理对象的指示开销不变或较少的同时不增加终端的内存,实现对终端所选天线端口的指示上报,以支持更大的天线端口传输。
图5是根据本公开实施例示出的通信方法的流程示意图,如图5所示,本公开实施例涉及通信方法,该方法包括:
步骤S5101,网络设备发送码本参数至终端。
示例的,网络设备发送码本参数至终端中,使终端基于码本参数对上报的指示信息进行编码。例如,终端可以基于网络设备发送的Rel-16 eType II、Rel-17 Type II PS码本和Rel-18 Type II多普勒码本,对需要上报的指示信息进行编码,并将编码后的码字发送至网络设备中。
可选地,在一些实施例中,该码本参数包括以下至少一项:
第一维度的端口数N1和第二维度的端口数N2
UE选择的第一空域基向量总数L;
CSI-RS对应的端口数PCSI-RS
端口参数信息α,该端口参数信息α用于指示终端根据端口参数信息确定第一端口的端口数,第一端口为终端选择的端口。
其中,N1和N2或PCSI-RS用于确定UE中Ptot的值,示例的,Ptot=N1N2,或者可选地,在一些实施例中码本参数中还包括Li,该Li用于指示上述两部分指示信息中第一部分中UE在各组候选空域基向量中所选的空域基向量个数,或UE在各组候选端口中所选的端口个数。
在一些实施例中,CSI-RS端口数PCSI-RS,为1个或多个CSI-RS资源的端口数之和,各个CSI-RS资源的端口数相同。
步骤S5102,终端将正交候选空域基向量组中的候选空域基向量划分为K组候选空域基向量,或将候选端口划分为K组候选端口。
示例的,本实施例中第n个一个正交空域基向量组中包括总的候选空域基向量个数为Ptot,或者终端中对应的总的候选端口个数为Ptot,对每个正交空域基向量组中的候选空域基向量进行分组,得到K组候选空域基向量组,其中第i(i∈[1,K])组候选空域基向量组中候选空域基向量的个数为Pi,各组候选空域基向量的个数Pi可以相同也可以不同。各组候选空域基向量的数量之和为总的候选空域基向量的个数,以及
在一些实施例中,Ptot为一个极化方向上的候选空域基向量个数,或一个极化方向上的端口个数。其中Ptot是指所有正交候选空域基向量组中第n个正交候选空域基向量组中包含的空域基向量的个数。示例的,第n个正交空域基向量组仍可以通过指示确定。
步骤S5103,终端通过上报两部分信息指示所选的L个空域基向量或L个端口。
示例的,UE基于上述K组候选空域基向量或K组候选端口,通过对当前所处网络环境进行分析,基于实际通信需求对K组候选空域基向量中空域基向量进行选择,确定各组中选择上报的空域基向量,或对K组候选端口进行选择,确定各组中选择上报的端口。
在一些实施例中,在两部分指示信息中第一部分用于指示第i组候选空域基向量中UE选择上报的空域基向量的个数Li,或第i组端口中UE选择上报的端口个数Li。第二部分用于指示第i组所选的Li个空域基向量。例如,第n个正交候选空域基向量组中存在8个候选空域基向量,A,B,C,D,E,F,G,H;随机对该8个候选空域基向量进行分组,以生成4组正交候选空域基向量组分别为:(A,B),(C),(D,E,F),(G,H)。UE对当前网络环境进行分析确定选择:第1组A,第3组E和第4组G和H作为指示上报的空域基向量,则在第一部分信息中指示:第1组1个,第2组0个,第3组1个,第4组2个,在第二部分信息中指示第1组A,第3组E,第4组G和H。
可选地,在一些实施例中,若第一部分中空域基向量的个数或端口数Li由网络设备配置时,则UE在基于两部分信息进行指示上报时,在第一部分信息中可以不用上报个数Li
在一些实施例中,对于K组候选空域基向量或K组候选端口,UE可以通过指示在K组候选空域基向量中所选空域基向量的总个数,或K组候选端口中所选端口的总个数,其中,L″表示K组中各组可选空域基向量个数的组合数,或K组候选端口中各组可选候选端口个数的组合数。示例的,本实施例中终端基于指示信息对第i组候选空域基向量或第i组候选端口中所选 空域基向量或所选端口进行上报时,第K组的空域基向量个数或端口个数等于因此UE从第K组候选空域基向量中所选择的空域基向量的个数,或UE从第K组候选端口中所选端口的个数,不需要上报指示,其中i<K。
可选地,在一些实施例中,若第i组选择了Li个空域基向量或Li个端口,则UE选择的所有空域基向量个数的组合或所有端口个数的组合有L’种,对于上述第一部分可通过指示各组所选的空域基向量的个数。而对于第一部分中端口个数的指示,UE可以通过指示所选的端口个数,在一个极化方向上能够选择的最大端口数一定的情况下,L′为每组端口中可选端口的个数组合数。Pi是第i组端口的端口总数,其中i<K,UE在第K组中所选端口的端口个数等于因此UE从第K组端口中所选择的端口个数,不需要上报指示。
在一些实施例中,对于上述两部分指示信息中的第二部分,UE可以通过指示UE在该i组候选空域基向量中所选的Li个空域基向量。
步骤S5104,网络设备根据终端上报的指示信息确定终端所选的空域基向量或端口。
示例的,网络设备接收到终端发送的指示信息后,通过该指示信息确定UE所选的空域基向量或端口,该空域基向量或端口用于进行下行数据传输的预编码计算。
例如,网络设备配置了码本参数N1=8、N2=4和L=4,且该码本类型为Rel-16 eType II码本,UE向网络设备指示所选的空域基向量,对应的Ptot=N1P2=32。采用上述实施例中的两部分指示方法,先将Ptot=N1N2=32分为两组,每组包含16个候选空域基向量,也即P1=P2=16。对于第一部分的指示信息,UE通过指示第1组中所选空域基向量的个数,则第二组中L2=L-L1。对于第二部分的指示信息,UE通过上报指示在第一组中所选的L1个空域基向量,通过指示在第二组中所选的L个空域基向量。示例的,基于上述实施例,UE还需要通过指示所选空域基向量的正交空域基向量组,也即经过采样后水平维和垂直维方向上的偏移量,若O=O2=4,则需要4bits对该正交空域基向量组进行指示。示例的,下述表2给出了不同L和L2取值,第一组和第二组候选空域基向量数相同时,所选空域基向量的中开销:
示例的,若第一组和第二组分别包含了P1=13,P2=19个候选空域基向量,也即P1≠P2时,下述表3给出了不同L1和L2取值时,所选空域基向量的总开销:
在一些实施例中,若采用相关技术中的指示方式,UE需要指示所选的空域基向量。但由于Ptot大于15,需要扩展上述表1(包括表1A和表1B)中的组合数值,导致UE中需要新增内存用于存储扩展的组合数值。基于上述表2可知,采用本实施例的分组和两部分上报方式,在某些取值下UE指示上报的bit信息可以减少2bits,例如L1=4,L2=0时,指示开销为4+3+11+0=18。在某些取值下UE指示上报的bit信息可以增加1bit,例如L1=1,L2=3时,指示开销为4+3+4+10=21。但本实施例中能够直接采用上述表1中的组合数值,而不需要额外增加UE内存以存储其他组合数值,从而在保证指示开销的情况下,不需要增加UE的存储空间,实现在支持较大发送天线端口时对UE所选的空域基向量的指示上报。
可选地,在一些实施例中,对于上述指示信息中的第一部分,UE在两组候选空域基向量中分别选择 了L1和L2个空域基向量,其中L1和L2的所有可能组合数为:{0,4}、{1,3}、{2,2}、{3,1}、{4,0},共计L’=5种,对于第一部分可通过指示各组所选的空域基向量的个数,UE上报指示信息的中开销可以参见上述表2。该方式对于组的增加和不同L的取值情况下可以比采用指示节省部分bits。例如,当L=4分为4组时,采用组合的指示L′=35,则需要6bits进行指示,而采用 指示,因此,通过本实施例中采用组合的方式进行指示时,能节省3bits。
在一些实施例中,网络设备给终端配置了K=2个CSI-RS资源,每个CSI-RS资源有32个端口,则PCSI-RS=64,且网络设备还配置了参数确定了UE所选的端口数为若将Ptot分为2组,每组中包含16个端口也即P1=P2=16。对于第一部分中的端口个数指示,Pi为第i组端口中的总端口数,其中i<K。示例的,第K组中所选端口的端口个数为因此第K组中所选端口的端口个数不需要上报指示。每组端口中可选端口的端口个数组合有{8,16}、{9,15}…、{16,8}共有9中,也即L’=9。下述表4给出了P1=P2=16,L1和L2取不同值时,所选端口的总开销:
若第一组和第二组分别包含了P1=13和P2=19个端口,也即P1≠P2时,表5给出了L1和L2取不同值时,所选端口的总开销。
基于上述开销,UE在对所选端口进行反馈时,可以基于上述表1中的系数组合,完成所选端口的反馈。不需要额外增加UE内存一存储其他组合数的值,从而实现支持较大发送天线端口时对UE所选天线端口的指示上报。
通过上述方式,将UE中总的候选空域基向量划分为多个组,然后对每个组中选择的空域基向量分别进行指示,从而在保证较少的反馈开销且不增加终端内存的情况下,实现在支持较大发送天线端口时对终端所选空域基向量或端口的指示上报。
图6是根据本公开实施例提出的终端的结构示意图。如图6所示,终端6100可以包括:收发模块6101、处理模块6102和收发模块6103。在一些实施例中,上述收发模块6101被配置为接收网络设备发送的码本参数,上述处理模块6102被配置为对处理对象进行分组,生成K组处理对象,K为正整数,上述收发模块6103被配置为根据K组处理对象和码本参数,生成指示信息发送至网络设备,指示信息用于指示终端选择的第一处理对象。可选地,上述收发模块6101、处理模块6102和收发模块6103用于执行以上任一方法中终端101执行的确定和/或获取等通信步骤中的至少一者,此处不再赘述。
在一些实施例中,收发模块6101和收发模块6103可以包括接收模块和发送模块,接收模块和发送模块可以是分离的,也可以集成在一起。可选地,发送模块可以与发送器相互替换。接收模块可以与接收机相互替换。
在一些实施例中,处理模块6102可以包括执行模块和获取模块,执行模块和获取模块可以是分离的,也可以集成在一起。可选地,执行模块可以与执行器相互替换。
图7是根据本公开实施例提出的网络设备的结构示意图。如图7所示,网络设备7100可以包括:收发模块7101和收发模块7102。在一些实施例中,上述收发模块7101被配置为发送码本参数至终端,码本参数用于指示终端根据码本参数对处理对象进行分组,生成K组处理对象,K为正整数,上述收发模块7102被配置为接收终端发送的指示信息,指示信息用于指示终端选择的第一处理对象,指示信息为终端根据K组处理对象和码本参数生成的。可选地,上述收发模块7101和收发模块7102用于执行以上任一方法中网络设备102执行的确定和/或获取等通信步骤中的至少一者,此处不再赘述。
在一些实施例中,收发模块7101和收发模块7102可以包括接收模块和发送模块,接收模块和发送模块可以是分离的,也可以集成在一起。可选地,发送模块可以与发送器相互替换。接收模块可以与接收机相互替换。
图8是根据本公开实施例提出的通信设备8100的结构示意图。通信设备8100可以是网络设备(例如接入网设备、核心网设备等),也可以是终端(例如用户设备等),也可以是支持网络设备实现以上任一方法的芯片、芯片系统、或处理器等,还可以是支持终端实现以上任一方法的芯片、芯片系统、或处理器等。通信设备8100可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
如图8所示,通信设备8100包括一个或多个第三处理器8101。第三处理器8101可以是通用处理器或者专用处理器等,例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端设备、终端设备芯片,DU或CU等)进行控制,执行程序,处理程序的数据。可选地,通信设备8100用于执行以上任一方法。可选地,一个或多个第三处理器8101用于调用指令以使得通信设备8100执行以上任一方法。
在一些实施例中,通信设备8100还包括一个或多个第三收发器8102。在通信设备8100包括一个或多个第三收发器8102时,第三收发器8102执行上述方法中的发送和/或接收等通信步骤中的至少一者,第三处理器8101执行其他步骤中的至少一者。在可选的实施例中,收发器可以包括接收器和/或发送器,接收器和发送器可以是分离的,也可以集成在一起。可选地,收发器、收发单元、收发机、收发电路、接口电路、接口等术语可以相互替换,发送器、发送单元、发送机、发送电路等术语可以相互替换,接收器、接收单元、接收机、接收电路等术语可以相互替换。
在一些实施例中,通信设备8100还包括用于存储数据的一个或多个第三存储器8103。可选地,全部或部分第三存储器8103也可以处于通信设备8100之外。在可选的实施例中,通信设备8100可以包括一个或多个第一接口电路8104。可选地,第一接口电路8104与第三存储器8103连接,第一接口电路8104可用于从第三存储器8103或其他装置接收数据,可用于向第三处理器8101或其他装置发送数据。例如,第一接口电路8104可读取第三存储器8103中存储的数据,并将该数据发送给第三处理器8101。
以上实施例描述中的通信设备8100可以是网络设备或者终端,但本公开中描述的通信设备8100的范围并不限于此,通信设备8100的结构可以不受图8的限制。通信设备可以是独立的设备或者可以是较大设备的一部分。例如所述通信设备可以是:1)独立的集成电路IC,或芯片,或,芯片系统或子系统;(2)具有一个或多个IC的集合,可选地,上述IC集合也可以包括用于存储数据,程序的存储部件;(3)ASIC,例如调制解调器(Modem);(4)可嵌入在其他设备内的模块;(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等;(6)其他等等。
图9是根据本公开实施例提出的芯片8200的结构示意图。对于通信设备8100可以是芯片或芯片系统的情况,可以参见图9所示的芯片8200的结构示意图,但不限于此。
芯片8200包括一个或多个第四处理器8201。芯片8200用于执行以上任一方法。
在一些实施例中,芯片8200还包括一个或多个第二接口电路8202。可选地,接口电路、接口、收发管脚等术语可以相互替换。在一些实施例中,芯片8200还包括用于存储数据的一个或多个第四存储器8203。可选地,全部或部分第四存储器8203可以处于芯片8200之外。可选地,第二接口电路8202与第四存储器8203连接,第二接口电路8202可以用于从第四存储器8203或其他装置接收数据,第二接口电路8202可用于向第四存储器8203或其他装置发送数据。例如,第二接口电路8202可读取第四存储器8203中存储的数据,并将该数据发送给第四处理器8201。
在一些实施例中,第二接口电路8202执行上述方法中的发送和/或接收等通信步骤中的至少一者。第二接口电路8202执行上述方法中的发送和/或接收等通信步骤例如是指:第二接口电路8202执行第四处理器8201、芯片8200、第四存储器8203或收发器件之间的数据交互。在一些实施例中,第四处理器8201执行其他步骤中的至少一者。
虚拟装置、实体装置、芯片等各实施例中所描述的各模块和/或器件可以根据情况任意组合或者分离。可选地,部分或全部步骤也可以由多个模块和/或器件协作执行,此处不做限定。
本公开还提出存储介质,上述存储介质上存储有指令,当上述指令在通信设备8100上运行时,使得通信设备8100执行以上任一方法。可选地,上述存储介质是电子存储介质。可选地,上述存储介质是计算机可读存储介质,但不限于此,其也可以是其他装置可读的存储介质。可选地,上述存储介质可以是非暂时性(non-transitory)存储介质,但不限于此,其也可以是暂时性存储介质。
本公开还提出程序产品,上述程序产品被通信设备8100执行时,使得通信设备8100执行以上任一方法。可选地,上述程序产品是计算机程序产品。
本公开还提出计算机程序,当其在计算机上运行时,使得计算机执行以上任一方法。

Claims (32)

  1. 一种通信方法,其特征在于,由终端执行,所述方法包括:
    接收网络设备发送的码本参数;
    对处理对象进行分组,生成K组处理对象,所述K为正整数;
    根据所述K组处理对象和所述码本参数,生成指示信息发送至所述网络设备,所述指示信息用于指示所述终端选择的第一处理对象。
  2. 根据权利要求1所述的方法,其特征在于,所述处理对象包括空域基向量,所述第一处理对象包括第一空域基向量。
  3. 根据权利要求1所述的方法,其特征在于,所述处理对象包括端口,所述第一处理对象包括第一端口。
  4. 根据权利要求2所述的方法,其特征在于,所述指示信息包括第一比特信息,所述第一比特信息用于指示第一正交空域基向量组,所述第一正交空域基向量组包括所述第一空域基向量。
  5. 根据权利要求1所述的方法,其特征在于,所述指示信息包括第二信息,所述第二信息用于指示所述第一处理对象。
  6. 根据权利要求5所述的方法,其特征在于,所述指示信息包括第一信息,所述第一信息用于指示所述第一处理对象的数量信息。
  7. 根据权利要求2和6所述的方法,其特征在于,所述第一信息包括第二比特信息,所述第二比特信息用于指示所述第一空域基向量的数量信息,所述第二比特信息的比特数为 其中,所述L为所述第一空域基向量的数量信息,所述L″表示K组中各组可选空域基向量个数的组合数。
  8. 根据权利要求3和6所述的方法,其特征在于,所述第一信息包括第三比特信息,所述第三比特信息用于指示所述第一端口的数量信息,所述第三比特信息的比特数为其中,所述L′为K组中各组可选端口个数的组合数,所述Pi为第i组端口的端口数,所述第i组端口为任一所述K组端口,所述i为小于或等于所述K的正整数。
  9. 根据权利要求5所述的方法,其特征在于,所述第二信息包括第四比特信息,所述第四比特信息用于指示所述第一处理对象,所述第四比特信息的比特数为其中,所述Li为第i组处理对象中所述第一处理对象的数量信息,所述第i组处理对象为任一K组处理对象,所述i为小于或等于所述K的正整数。
  10. 根据权利要求5所述的方法,其特征在于,所述第一信息通过第一部分信息承载,所述第二信息通过第二部分信息承载,所述终端通过所述第一部分信息和所述第二部分信息上报信道状态信息CSI。
  11. 根据权利要求5所述的方法,其特征在于,所述第一信息和所述第二信息均通过第二部分信息承载,所述终端通过第一部分信息和所述第二部分信息上报CSI。
  12. 一种通信方法,其特征在于,由网络设备执行,所述方法包括:
    发送码本参数至终端,所述码本参数用于指示所述终端根据所述码本参数对处理对象进行分组,生成K组处理对象,所述K为正整数;
    接收所述终端发送的指示信息,所述指示信息用于指示所述终端选择的第一处理对象,所述指示信息为所述终端根据所述K组处理对象和所述码本参数生成的。
  13. 根据权利要求12所述的方法,其特征在于,所述处理对象包括空域基向量,所述第一处理对象包括第一空域基向量。
  14. 根据权利要求12所述的方法,其特征在于,所述处理对象包括端口,所述第一处理对象包括第一端口。
  15. 根据权利要求12所述的方法,其特征在于,所述处理对象包括第二信息,所述第二信息用于指示所述第一处理对象。
  16. 根据权利要求15所述的方法,其特征在于,所述处理对象包括第一信息,所述第一信息用于指示所述第一处理对象的数量信息。
  17. 根据权利要求13和16所述的方法,其特征在于,所述第一信息包括第二比特信息,所述第二比特信息用于指示所述第一空域基向量的数量信息,所述第二比特信息的比特数为 其中,所述L为所述第一空域基向量的数量信息,所述L″表示K组中各组可选空域基向量个数的组合数。
  18. 根据权利要求14和16所述的方法,其特征在于,所述第一信息包括第三比特信息,所述第三比特信息用于指示所述第一端口的数量信息,所述第三比特信息的比特数为其中,所述L′为K组中各组可选端口个数的组合数,所述Pi为第i组端口的端口数,所述第i组端口为任一所述K组端口,所述i为小于或等于所述K的正整数。
  19. 根据权利要求15所述的方法,其特征在于,所述第二信息包括第四比特信息,所述第四比特信息用于指示所述第一处理对象,所述第四比特信息的比特数为其中,所述Li为第i组处理对象中所述第一处理对象的数量信息,所述第i组处理对象为任一K组处理对象,所述i为小于或等于所述K的正整数。
  20. 根据权利要求16所述的方法,其特征在于,所述第一信息通过第一部分信息承载,所述第二信息通过第二部分信息承载,所述终端通过所述第一部分信息和所述第二部分信息上报CSI。
  21. 根据权利要求16所述的方法,其特征在于,所述第一信息和所述第二信息均通过第二部分信息承载,所述终端通过第一部分信息和所述第二部分信息上报CSI。
  22. 根据权利要求13和14所述的方法,其特征在于,所述码本参数包括以下至少一项:
    第一维度的端口数和第二维度的端口数;
    所述第一空域基向量的数量信息;
    信道状态信息参考信号CSI-RS对应的端口数量;
    端口参数信息,所述端口参数信息用于指示所述终端根据所述端口参数信息,确定所述第一端口的端口数。
  23. 根据权利要求22所述的方法,其特征在于,所述码本参数包括第一数量信息,所述第一数量信息用于指示第i组处理对象中所述第一处理对象的数量,所述第i组处理对象为任一K组处理对象,所述i为小于或等于所述K的正整数。
  24. 根据权利要求22所述的方法,其特征在于,所述端口数量为一个或多个CSI-RS资源的端口总数,各个CSI-RS资源的端口数相等。
  25. 根据权利要求12所述的方法,其特征在于,所述方法还包括:
    根据所述指示信息,确定所述第一处理对象,所述第一处理对象用于进行下行数据传输的预编码计算。
  26. 一种终端,其特征在于,包括:
    收发模块,被配置为接收网络设备发送的码本参数;
    处理模块,被配置为对处理对象进行分组,生成K组处理对象,所述K为正整数;
    收发模块,被配置为根据所述K组处理对象和所述码本参数,生成指示信息发送至所述网络设备,所述指示信息用于指示所述终端选择的第一处理对象。
  27. 一种网络设备,其特征在于,包括:
    收发模块,被配置为发送码本参数至终端,所述码本参数用于指示所述终端根据所述码本参数对处理对象进行分组,生成K组处理对象,所述K为正整数;
    收发模块,被配置为接收所述终端发送的指示信息,所述指示信息用于指示所述终端选择的第一处理对象,所述指示信息为所述终端根据所述K组处理对象和所述码本参数生成的。
  28. 一种通信装置,其特征在于,包括:
    一个或多个处理器;
    其中,所述处理器用于执行权利要求1-11中任一项所述的通信方法。
  29. 一种通信装置,其特征在于,包括:
    一个或多个处理器;
    其中,所述处理器用于执行权利要求12-25中任一项所述的通信方法。
  30. 一种通信系统,其特征在于,包括终端和网络设备,其中,所述终端被配置为实现权利要求1-11中任一项所述的通信方法,所述网络设备被配置为实现权利要求12-25中任一项所述的通信方法。
  31. 一种存储介质,所述存储介质存储有指令,其特征在于,当所述指令在通信设备上运行时,使得所述通信设备执行如权利要求1-11中任一项所述的通信方法,或使得所述通信设备执行权利要求12-25中任一项所述的通信方法。
  32. 一种计算机程序产品,包括计算机程序和/或指令,其特征在于,所述计算机程序和/或指令被通信设备执行时实现如权利要求1-11中任一项所述的通信方法,或所述计算机程序和/或指令被通信设备执行时实现权利要求12-25中任一项所述的通信方法。
PCT/CN2024/084241 2024-03-27 2024-03-27 通信方法、终端、网络设备、系统及存储介质 Pending WO2025199837A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202480000696.XA CN121039971A (zh) 2024-03-27 2024-03-27 通信方法、终端、网络设备、系统及存储介质
PCT/CN2024/084241 WO2025199837A1 (zh) 2024-03-27 2024-03-27 通信方法、终端、网络设备、系统及存储介质

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2024/084241 WO2025199837A1 (zh) 2024-03-27 2024-03-27 通信方法、终端、网络设备、系统及存储介质

Publications (1)

Publication Number Publication Date
WO2025199837A1 true WO2025199837A1 (zh) 2025-10-02

Family

ID=97215522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2024/084241 Pending WO2025199837A1 (zh) 2024-03-27 2024-03-27 通信方法、终端、网络设备、系统及存储介质

Country Status (2)

Country Link
CN (1) CN121039971A (zh)
WO (1) WO2025199837A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220264350A1 (en) * 2019-07-19 2022-08-18 Ntt Docomo, Inc. Terminal and radio communication method
CN116941188A (zh) * 2023-06-07 2023-10-24 北京小米移动软件有限公司 信息处理方法及装置、通信设备、通信系统、存储介质
CN117480836A (zh) * 2022-04-27 2024-01-30 北京小米移动软件有限公司 基于码本的预编码确定方法、装置、设备及存储介质

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220264350A1 (en) * 2019-07-19 2022-08-18 Ntt Docomo, Inc. Terminal and radio communication method
CN117480836A (zh) * 2022-04-27 2024-01-30 北京小米移动软件有限公司 基于码本的预编码确定方法、装置、设备及存储介质
CN116941188A (zh) * 2023-06-07 2023-10-24 北京小米移动软件有限公司 信息处理方法及装置、通信设备、通信系统、存储介质

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHENGXUAN LIU, XIAOMI: "CSI enhancement for high/medium UE velocities and CJT", 3GPP DRAFT; R1-2302961; TYPE DISCUSSION; NR_MIMO_EVO_DL_UL-CORE, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Online; 20230417 - 20230426, 7 April 2023 (2023-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052293531 *

Also Published As

Publication number Publication date
CN121039971A (zh) 2025-11-28

Similar Documents

Publication Publication Date Title
US12244382B2 (en) Channel state information feedback method and communications apparatus
EP3691212B1 (en) Uplink transmission and configuration method, terminal, and base station
US12376091B2 (en) Method for indicating channel state information CSI measurement and communication apparatus
CN113765830A (zh) 获取信道信息的方法及通信装置
WO2024250208A1 (zh) 信息处理方法及装置、通信设备、通信系统、存储介质
CN107707285B (zh) 信道状态信息的发送方法、接收方法以及装置
CN112312464A (zh) 上报信道状态信息的方法和通信装置
US12413280B2 (en) Method of sounding reference signal (SRS)-assisted SD beam and FD vector reporting for type II channel state information (CSI)
US11742904B2 (en) Method and apparatus for multi-user multi-antenna transmission
WO2024065275A1 (en) Methods and apparatuses for csi reporting
WO2025166781A1 (zh) 上行传输方案的指示方法、终端、网络设备、系统及介质
WO2025030294A1 (zh) 信息处理方法及装置、通信设备、通信系统、存储介质
CN112534734B (zh) 用于无线通信的使用共相矩阵进行波束成形的适应性共相
CN121039971A (zh) 通信方法、终端、网络设备、系统及存储介质
WO2025145459A1 (zh) 通信方法、终端、网络设备、通信系统及存储介质
WO2025160843A1 (zh) 功率信息上报方法、终端、网络设备、系统及存储介质
WO2025184846A1 (zh) 感知方法、设备、系统及存储介质
WO2025260339A1 (zh) 通信方法、终端、网络设备、系统及存储介质
WO2025145462A1 (zh) 通信方法、终端、网络设备、通信系统及存储介质
WO2025145460A1 (zh) 通信方法、终端、网络设备、通信系统及存储介质
WO2025152182A1 (zh) 信息上报方法及装置、存储介质
WO2025050269A1 (zh) 信息确定方法、设备和存储介质
WO2025166783A1 (zh) 上行传输方案的指示方法、终端、网络设备、系统及介质
WO2026044755A1 (zh) 通信方法、设备、系统及存储介质
WO2025107131A1 (zh) 信道状态信息反馈方法、装置及存储介质

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 24932453

Country of ref document: EP

Kind code of ref document: A1