Method, apparatus and system for transmitting and receiving indication information of sd-fd pair

Abstract

This disclosure provides a method for transmitting indication information of spatial and frequency-domain SD-FD base pairs. The method is executed by a terminal and includes: transmitting indication information to a base station; wherein the indication information indicates: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs. In this disclosure, signaling overhead can be saved compared to indicating individual base pairs. Furthermore, the indication information can also indicate the amplitude coefficients and / or phase coefficients corresponding to at least one of the first number of SD-FD base pairs, thereby allowing for the determination of the performance of each SD-FD base pair and the selection of SD-FD base pairs with better performance for data transmission, thus improving transmission performance.

Description

Technical Field

[0001] This disclosure relates to, but is not limited to, the field of wireless communication technology, and particularly to a method, apparatus, system, communication device, and storage medium for transmitting and receiving indication information of spatial and frequency domain SD-FD base pairs. Background Technology

[0002] In Multiple-Input Multiple-Output (MIMO) wireless communication systems, precoding or beamforming multiple transmit antennas can improve transmission efficiency and reliability. To achieve high-performance precoding or beamforming, the precoding matrix or beamforming vector requires a well-matched channel, which necessitates that the transmitter obtain good Channel State Information (CSI). Therefore, CSI feedback is a key technology for achieving high-performance precoding or beamforming in MIMO systems. It requires CSI to indicate the spatial basis (SD) and frequency basis vectors (FD); however, related technologies suffer from high signaling overhead and low transmission performance. Summary of the Invention

[0003] This disclosure provides a method, apparatus, system, communication device, and storage medium for transmitting and receiving indication information of spatial and frequency domain SD-FD base pairs.

[0004] According to a first aspect of the present disclosure, a method for transmitting indication information of spatial and frequency domain SD-FD base pairs is provided, wherein the method is executed by a terminal, and the method includes:

[0005] Send indication information to the base station;

[0006] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0007] In one embodiment, the method further includes one of the following:

[0008] Receive codebook parameter configuration information sent by the base station, and determine the first quantity based on the codebook parameter configuration information;

[0009] Receive the number of SD-FD base pairs sent by the base station, and determine the first number based on the number of SD-FD base pairs; and

[0010] The system receives codebook parameter configuration information and SD-FD base pair quantity information sent by the base station, and determines the first quantity based on the codebook parameter configuration information and SD-FD base pair quantity information.

[0011] In one embodiment, the number of bits in the information field of the indication information is determined based on the first number.

[0012] In one embodiment, the SD-FD base pair includes a first SD-FD base pair and a second SD-FD base pair, and the indication information is reference coefficient indication information, which is used to indicate the first SD-FD base pair.

[0013] In one embodiment, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficients of the SD-FD base pairs other than the first SD-FD base pair.

[0014] In one embodiment, the method further includes:

[0015] The coefficients of the second SD-FD base pair are sent to the base station;

[0016] Wherein, the amplitude coefficient of the second SD-FD base pair is the difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is the difference value relative to the phase coefficient of the first SD-FD base pair.

[0017] In one embodiment, sending reference coefficient indication information to the base station includes:

[0018] The reference coefficient indication information is sent to the base station for different polarization directions.

[0019] In one embodiment, the reference coefficient indication information includes channel measurement resource identification information or port group identification information of channel measurement resources.

[0020] According to a second aspect of the present disclosure, a method for receiving indication information of spatial and frequency domain SD-FD base pairs is provided, wherein the method is performed by a base station, and the method includes:

[0021] Receive instruction information sent by the terminal;

[0022] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0023] In one embodiment, the method further includes one of the following:

[0024] Receive codebook parameter configuration information sent by the base station, and determine the first quantity based on the codebook parameter configuration information;

[0025] Receive the number of SD-FD base pairs sent by the base station, and determine the first number based on the number of SD-FD base pairs; and

[0026] The system receives codebook parameter configuration information and SD-FD base pair quantity information sent by the base station, and determines the first quantity based on the codebook parameter configuration information and SD-FD base pair quantity information.

[0027] In one embodiment, the number of bits in the information field of the indication information is determined based on the first number.

[0028] In one embodiment, the SD-FD base pair includes a first SD-FD base pair and a second SD-FD base pair, and the indication information is reference coefficient indication information, which is used to indicate the first SD-FD base pair.

[0029] In one embodiment, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficients of the SD-FD base pairs other than the first SD-FD base pair.

[0030] In one embodiment, the method further includes:

[0031] Receive the predetermined coefficients of the second SD-FD base pair sent by the terminal;

[0032] Wherein, the amplitude coefficient of the second SD-FD base pair is the difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is the difference value relative to the phase coefficient of the first SD-FD base pair.

[0033] In one embodiment, the method further includes:

[0034] The reference coefficient indication information sent by the terminal for different polarization directions is received.

[0035] In one embodiment, wherein

[0036] The reference coefficient indication information includes channel measurement resource identification information.

[0037] Or port group identification information of channel measurement resources. According to a third aspect of this disclosure, an apparatus for transmitting indication information of spatial and frequency domain SD-FD base pairs is provided, wherein the apparatus includes:

[0038] The transmitting module is used to send indication information to the base station;

[0039] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0040] According to a fourth aspect of the present disclosure, an apparatus for receiving indication information of spatial and frequency domain SD-FD base pairs is provided, wherein the apparatus includes:

[0041] The receiving module is used to receive indication information sent by the terminal;

[0042] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs. According to a fifth aspect of the present disclosure, a system for transmitting indication information of spatial and frequency domain SD-FD base pairs is provided, wherein the system includes a terminal and a base station, the terminal performing the method described in any embodiment of the present disclosure, and the base station performing the method described in any embodiment of the present disclosure.

[0043] According to a sixth aspect of the present disclosure, a communication device is provided, the communication device comprising:

[0044] processor;

[0045] Memory used to store the processor's executable instructions;

[0046] The processor is configured to implement the method described in any embodiment of this disclosure when running the executable instructions.

[0047] According to a seventh aspect of the present disclosure, a computer storage medium is provided, the computer storage medium storing a computer executable program, which, when executed by a processor, implements the methods described in any embodiment of the present disclosure.

[0048] In this embodiment of the disclosure, indication information is sent to the base station; wherein, the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficient and / or phase coefficient of the SD-FD base pair. Here, the SD base and FD base can be jointly indicated based on the indication information, which can save signaling overhead compared to indicating them separately. Furthermore, the indication information can also indicate the amplitude coefficient and / or phase coefficient corresponding to at least one of the first number of SD-FD base pairs, thereby determining the performance of each SD-FD base pair, and thus selecting the SD-FD base pair with better performance for data transmission, improving transmission performance. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the structure of a wireless communication system.

[0050] Figure 2 This is a flowchart illustrating a method for transmitting indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0051] Figure 3 This is a flowchart illustrating a method for transmitting indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0052] Figure 4 This is a flowchart illustrating a method for transmitting indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0053] Figure 5 This is a flowchart illustrating a method for receiving indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0054] Figure 6 This is a flowchart illustrating a method for receiving indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0055] Figure 7 This is a flowchart illustrating a method for receiving indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0056] Figure 8 This is a schematic diagram of a device for transmitting indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0057] Figure 9 This is a schematic diagram of a receiving device for indicating information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0058] Figure 10 This is a schematic diagram illustrating a system for transmitting indication information of spatial and frequency domain SD-FD base pairs according to an exemplary embodiment.

[0059] Figure 11 This is a block diagram illustrating a user device according to an exemplary embodiment.

[0060] Figure 12 This is a block diagram illustrating a base station according to an exemplary embodiment. Detailed Implementation

[0061] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this disclosure as detailed in the appended claims.

[0062] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. The singular forms “a” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0063] It should be understood that although the terms first, second, third, etc., may be used to describe various information in embodiments of this disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of embodiments of this disclosure, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0064] For the sake of brevity and ease of understanding, the terms “greater than” or “less than” are used in this document to characterize size relationships. However, it will be understood by those skilled in the art that the term “greater than” also includes the meaning of “greater than or equal to”, and “less than” also includes the meaning of “less than or equal to”.

[0065] Please refer to Figure 1 This illustration shows a schematic diagram of the structure of a wireless communication system provided in an embodiment of this disclosure. Figure 1As shown, the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include: several user equipment 110 and several base stations 120.

[0066] User equipment 110 can be a device that provides voice and / or data connectivity to a user. User equipment 110 can communicate with one or more core networks via a Radio Access Network (RAN). User equipment 110 can be Internet of Things (IoT) user equipment, such as sensor devices, mobile phones (or "cellular" phones), and computers with IoT user equipment capabilities. For example, it can be a fixed, portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted device. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, or user equipment. Alternatively, terminal 110 can also be an Industrial Internet of Things (IIoT) device, such as a forklift or automated assembly equipment. Alternatively, the user equipment 110 can also be equipment from an unmanned aerial vehicle. Alternatively, the user equipment 110 can also be vehicle-mounted equipment, such as a vehicle computer with wireless communication capabilities, or a wireless user equipment connected to an external vehicle computer. Alternatively, the user equipment 110 can also be roadside equipment, such as streetlights, traffic lights, or other roadside equipment with wireless communication capabilities.

[0067] Base station 120 can be a network-side device in a wireless communication system. This wireless communication system can be a fourth-generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system; or it can be a 5G system, also known as a New Radio (NR) system or a 5G NR system. Alternatively, it can be a next-generation system after 5G. In this 5G system, the access network can be called NG-RAN (New Generation-Radio Access Network). It should be noted that, in this disclosure, the base station can also be at least one Transmitter Receiver Point (TRP).

[0068] The base station 120 can be an evolved NB (eNB) used in a 4G system. Alternatively, the base station 120 can also be a gNB (gNB) using a centralized-distributed architecture in a 5G system. When the base station 120 adopts a centralized-distributed architecture, it typically includes a central unit (CU) and at least two distributed units (DUs). The central unit is equipped with a protocol stack of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the Media Access Control (MAC) layer; the distributed units are equipped with a physical (PHY) layer protocol stack. This disclosure does not limit the specific implementation of the base station 120.

[0069] Base station 120 and user equipment 110 can establish a wireless connection via a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth-generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth-generation mobile communication network technology (5G) standard, such as a new air interface; or, the wireless air interface can also be a wireless air interface based on a next-generation mobile communication network technology standard based on 5G.

[0070] In some embodiments, user equipment 110 can also establish E2E (End to End) connections. Examples include V2V (vehicle to vehicle), V2I (vehicle to Infrastructure), and V2P (vehicle to pedestrian) communication scenarios in vehicle-to-everything (V2X) communication.

[0071] Here, the user equipment mentioned above can be considered as the terminal equipment in the following embodiments.

[0072] In some embodiments, the wireless communication system described above may further include a network management device 130.

[0073] Several base stations 120 are connected to network management device 130. Network management device 130 can be a core network device in a wireless communication system, such as a Mobility Management Entity (MME) in an Evolved Packet Core (EPC). Alternatively, it can be other core network devices, such as a Serving Gateway (SGW), Public Data Network Gateway (PGW), Policy and Charging Rules Function (PCRF), or Home Subscriber Server (HSS). Alternatively, it can be a Location Management Function entity. The implementation of network management device 130 is not limited in this embodiment.

[0074] To facilitate understanding of any embodiment of this disclosure, the application scenarios of CSI feedback in related technologies will first be described.

[0075] CSI feedback includes a Precoding Matrix Indicator (PMI), which contains both spatial beam (SD basis) and frequency basis (FD basis) indicators, and these two indicators are independent.

[0076] For example, spatial beam indication indicates the selection of L beams from N1×N2 beams, so its indication bit count is:

[0077]

[0078] For frequency domain basis vector indication, for example, when the total number of frequency domain units N3 is less than or equal to 19, M units are directly selected from the N3 frequency domain units as basis vectors. Here, since the first frequency domain unit definitely needs to be selected, the indication bit is:

[0079]

[0080] If N3 is greater than 19, in order to reduce signaling overhead, the terminal will be restricted to selecting M frequency domain elements from 2M. First, the starting point of the 2M window needs to be indicated, and its number of bits is:

[0081]

[0082] Therefore, the frequency domain cell corresponding to the starting point of the window is also the selected frequency domain cell. The number of indicator bits required for the remaining M-1 frequency domain cells is:

[0083]

[0084] In actual transmission, a combination of beam and frequency domain basis vectors is required. Since the terminal independently selects and reports the beam and frequency domain basis vectors, some combinations of these vectors do not produce good performance. Therefore, to indicate the performance of each beam and frequency domain basis vector combination, the terminal needs to indicate the performance parameters of each combination, such as the amplitude factor and phase factor. To indicate the amplitude and phase factors, the terminal first needs 2LM (corresponding to two polarization directions) bits to indicate which combinations have non-zero amplitudes and which have zero amplitudes. Then, for combinations with non-zero amplitudes, the terminal further indicates the amplitude and phase factors of each combination.

[0085] In one embodiment, the SD basis is selected from N1×N2 beams, and the FD basis is selected from N3 elements. Since some of the 2LM SD-FD basis pairs have poor performance (i.e., their coefficients are 0), 2LM bitmaps are needed to indicate the β2LM non-zero coefficients of each layer, where β is a decimal, meaning that the number of non-zero coefficients is less than 2LM.

[0086] like Figure 2 As shown, this embodiment provides a method for transmitting indication information of spatial and frequency domain SD-FD base pairs, wherein the method is executed by a terminal, and the method includes:

[0087] Step 21: Send indication information to the base station;

[0088] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0089] The terminals involved in this disclosure may be, but are not limited to, mobile phones, wearable devices, vehicle terminals, roadside units (RSUs), smart home terminals, industrial sensing devices, and / or medical devices. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a New Radio (NR) terminal (e.g., an R17 NR terminal).

[0090] This base station serves as the interface device for terminals to access the network. Base stations can be of various types, such as 3G, 4G, 5G, or other evolved base stations.

[0091] In one embodiment, in response to the establishment of a Radio Resource Control (RRC) connection, indication information is sent to a base station; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0092] In one embodiment, in response to receiving a request to obtain the indication information, indication information is sent to the base station; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0093] In one embodiment, information sent by a base station for determining the first quantity is received; the first quantity is determined based on the information; and indication information is sent to the base station; wherein the indication information is used to indicate: a first quantity of SD-FD base pairs, and coefficients corresponding to at least one SD-FD base pair in the first quantity of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0094] In one embodiment, indication information is sent to a base station; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs; the first number is determined based on codebook parameter configuration information sent by the base station and / or the number of SD-FD base pairs sent by the base station.

[0095] In one embodiment, codebook parameter configuration information sent by a base station is received; the first quantity is determined based on the codebook parameter configuration information; and indication information is sent to the base station; wherein the indication information is used to indicate: the first quantity of SD-FD base pairs, and the coefficient corresponding to at least one SD-FD base pair in the first quantity of SD-FD base pairs; the coefficient includes the amplitude coefficient and / or phase coefficient of the SD-FD base pair.

[0096] For example, the codebook parameter configuration information can be found in Table 1 under L and p. υ and β, where M υ (For example, ), where N3 and R can be obtained based on other configuration information, then based on the p in the codebook parameter configuration information. υ You can get M υ M υ That is, M of the vth layer. Therefore, the first quantity determined based on Table 1 is β2LM (the number of base pairs indicated by each layer). For example, Table 1 can be found in Rel-16 Type II - Table 1. It should be noted that the values ​​of each parameter may differ from those in Table 1, and this disclosure does not impose any restrictions.

[0097] Table 1

[0098]

[0099] For example, the codebook parameter configuration information can be found in Table 2 for M, α, and β, where N1 and N2 can be obtained through other configuration information. Therefore, the first quantity determined based on Table 2 is 2αβN1N2M (the number of base pairs indicated per layer). For example, Table 2 can be found in the parameter table of the Rel-17 Type II port selection codebook - Table 2. It should be noted that the values ​​of each parameter may differ from those in Table 2, and this disclosure does not impose any restrictions.

[0100] Table 2

[0101] Parameter Combinations - Version R17 M α β 1 1 3 / 4 1 / 2 2 1 1 1 / 2 3 1 1 3 / 4 4 1 1 1 5 2 1 / 2 1 / 2 6 2 3 / 4 1 / 2 7 2 1 1 / 2 8 2 1 3 / 4

[0102] It should be noted that the determination of the first quantity is not limited to the parameter form in the table above; it simply means that the terminal determines the first quantity by having the base station provide the values ​​of these parameters.

[0103] In one embodiment, the system receives SD-FD base pair quantity information sent by a base station; determines the first quantity based on the SD-FD base pair quantity information; and sends indication information to the base station. The indication information indicates: the first quantity of SD-FD base pairs, and the coefficient corresponding to at least one SD-FD base pair in the first quantity of SD-FD base pairs. The coefficient includes the amplitude coefficient and / or phase coefficient of the SD-FD base pair.

[0104] In one embodiment, codebook parameter configuration information and the number of SD-FD base pairs sent by the base station are received; the first quantity is determined according to the codebook parameter configuration information and the number of SD-FD base pairs. Indication information is sent to the base station; wherein the indication information indicates: a first quantity of SD-FD base pairs, and a coefficient corresponding to at least one SD-FD base pair in the first quantity of SD-FD base pairs; the coefficient includes the amplitude coefficient and / or phase coefficient of the SD-FD base pair. In another embodiment, the first quantity is determined according to a predetermined rule; indication information is sent to the base station; wherein the indication information indicates: a first quantity of SD-FD base pairs, and a coefficient corresponding to at least one SD-FD base pair in the first quantity of SD-FD base pairs; the coefficient includes the amplitude coefficient and / or phase coefficient of the SD-FD base pair. Here, the predetermined rule may be determined based on locally stored rule information. In another embodiment, indication information is sent to the base station; wherein the indication information indicates: a first quantity of SD-FD base pairs, and a coefficient corresponding to at least one SD-FD base pair in the first quantity of SD-FD base pairs; the coefficient includes the amplitude coefficient and / or phase coefficient of the SD-FD base pair. The amplitude coefficient is a non-zero coefficient.

[0105] It should be noted that if the amplitude coefficient of the selected SD-FD base pair is 0, the terminal will indicate that the selected SD-FD base pair will not include this SD-FD base pair.

[0106] In one embodiment, an SD-FD base pair is selected, wherein the amplitude coefficient of the SD-FD base pair is non-zero; indication information is sent to the base station; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and the coefficient corresponding to at least one of the first number of SD-FD base pairs; the coefficient includes the amplitude coefficient and / or phase coefficient of the SD-FD base pair.

[0107] In one embodiment, indication information is sent to a base station; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs; the number of bits in the information field of the indication information is determined based on the first number. For example, if the first number is greater than a number threshold, the number of bits in the information field may be greater than a reference threshold; or, if the first number is less than a number threshold, the number of bits in the information field may be less than a reference threshold.

[0108] For example, the number of enhanced bits based on Rel-16 type II is:

[0109]

[0110] Where N1 and N2 correspond to the number of beams in the first and second dimensions, respectively, and N3 is the number of frequency domain basis vectors. When N3 is greater than 19, N3 can be replaced by a smaller frequency domain window length. In similar related technologies, the frequency domain window length is 2M, where M is the number of frequency domain basis vectors to be selected. The pair number is the first quantity.

[0111] For example, the number of enhanced bits based on the Rel-17 type II port selection codebook is:

[0112]

[0113] Where N1 and N2 correspond to the number of beams in the first and second dimensions, respectively, and N is the length of the frequency domain window. The number of pairs is the first quantity.

[0114] In one embodiment, the SD-FD base pair includes a first SD-FD base pair and a second SD-FD base pair.

[0115] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair among the SD-FD base pairs; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficients of the SD-FD base pairs other than the first SD-FD base pair among the SD-FD base pairs. For example, the reference amplitude coefficient can be the largest coefficient among the amplitude coefficients of the SD-FD base pairs.

[0116] In one embodiment, the SD-FD base pair corresponding to the reference amplitude coefficient is first indicated, and the required number of bits is:

[0117]

[0118] Among them, the number of pairs is the first quantity.

[0119] It should be noted that the amplitude of the SD-FD base pair can be normalized to 1 and the phase to 0, in which case it does not need to be reported. For the amplitude and phase of other SD-FD base pairs, the difference values ​​of the SD-FD base pairs corresponding to the reference amplitude coefficients can be reported.

[0120] In one embodiment, reference coefficient indication information is sent to the base station for different polarization directions; wherein, the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0121] In one embodiment, reference coefficient indication information is sent to the base station in units of one or more channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0122] In one embodiment, reference coefficient indication information is sent to the base station on a unit basis of one or more port groups of channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0123] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information; or, the reference coefficient indication information includes port group identification information of the channel measurement resource.

[0124] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information in response to one or more channel measurement resources; or, in response to one or more port groups of channel measurement resources, the reference coefficient indication information includes port group identification information of the channel measurement resources. In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. If the reference coefficient indication information is sent in units of multiple channel measurement resources, the reference coefficient indication information includes multiple channel measurement resource identification information or includes channel measurement resource combination identification information; wherein the multiple channel measurement resource identifications corresponding to each channel measurement resource combination identification are determined by base station configuration, terminal indication, or based on default rules. Alternatively, if the reference coefficient indication information is sent in units of multiple port groups of channel resources, the reference coefficient indication information includes port group identification information of multiple channel measurement resources or combination identification information of port groups of combined channel measurement resources; wherein, the multiple port group identifiers of the channel measurement resources corresponding to the combination identifier of the port group of each channel measurement resource are determined by base station configuration, terminal indication or based on default rules.

[0125] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The coefficients of a second SD-FD base pair, which are different from the first SD-FD base pair, are sent to the base station; wherein the amplitude coefficient of the second SD-FD base pair is a difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is a difference value relative to the phase coefficient of the first SD-FD base pair.

[0126] In one embodiment, for different Transmitter Receiver Points (TRPs), a reference amplitude coefficient can be indicated for all TRPs. This requires indicating the SD-FD base pair corresponding to the reference amplitude coefficient and the Channel Measurement Resource Identifier (SRI) ID or Port Group ID corresponding to the SRI. Then, the non-reference SD-FD base pairs of that TRP and all SD-FD base pairs of other TRPs are relative values ​​relative to the reference SD-FD base pair corresponding to that reference amplitude coefficient. Alternatively, each TRP can indicate its own reference amplitude coefficient, and the SD-FD base pairs corresponding to other non-reference amplitude coefficients within each TRP are the difference values ​​relative to the reference SD-FD base pairs corresponding to their respective reference amplitude coefficients. That is, different TRPs correspond to different Channel Measurement Resource Identifiers (SRIs) IDs or different TRPs correspond to different Port Group IDs of the Channel Measurement Resources. Therefore, indicating the Channel Measurement Resource Identifier ID or the Port Group ID of the Channel Measurement Resources is equivalent to indicating the TRP.

[0127] In one embodiment, the channel measurement resource can be a Channel State Information Reference Signal (CSI-RS) resource. The port group of the channel measurement resource can be one of multiple port groups divided into ports corresponding to the CSI-RS, and the ports included in each port group are configured by the base station or determined based on default rules.

[0128] In this embodiment of the disclosure, indication information is sent to the base station; wherein, the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficient and / or phase coefficient of the SD-FD base pair. Here, the SD base and FD base can be jointly indicated based on the indication information, which can save signaling overhead compared to indicating them separately. Furthermore, the indication information can also indicate the amplitude coefficient and / or phase coefficient corresponding to at least one of the first number of SD-FD base pairs, thereby determining the performance of each SD-FD base pair, and thus selecting the SD-FD base pair with better performance for data transmission, improving transmission performance.

[0129] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0130] like Figure 3 As shown, this embodiment provides a method for transmitting indication information of spatial and frequency domain SD-FD base pairs, wherein the method is executed by a terminal, and the method includes:

[0131] Step 31: Send reference coefficient indication information to the base station;

[0132] The reference coefficient indication information is used to indicate the first SD-FD base pair in the SD-FD base pair.

[0133] In one embodiment, the SD-FD base pair includes a first SD-FD base pair and a second SD-FD base pair.

[0134] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair in the SD-FD base pairs; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficients of the SD-FD base pairs other than the first SD-FD base pair in the SD-FD base pairs.

[0135] In one embodiment, reference coefficient indication information is sent to the base station for different polarization directions; wherein, the reference coefficient indication information is used to indicate the first SD-FD base pair in the SD-FD base pairs; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficient of the SD-FD base pairs other than the first SD-FD base pair in the SD-FD base pairs.

[0136] In one embodiment, reference coefficient indication information is sent to the base station in units of one or more channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0137] In one embodiment, reference coefficient indication information is sent to the base station on a unit basis of one or more port groups of channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0138] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information; or, the reference coefficient indication information includes port group identification information of the channel measurement resource.

[0139] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information, either on a per-one or per-channel measurement resource basis, or on a per-one or per-port group basis, the reference coefficient indication information includes port group identification information of the channel measurement resource.

[0140] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. If the reference coefficient indication information is sent in units of multiple channel measurement resources, the reference coefficient indication information includes multiple channel measurement resource identifiers or channel measurement resource combination identifiers; wherein the multiple channel measurement resource identifiers corresponding to each channel measurement resource combination identifier are determined by base station configuration, terminal indication, or based on default rules. Alternatively, if the reference coefficient indication information is sent in units of multiple port groups of channel resources, the reference coefficient indication information includes multiple port group identifiers of channel measurement resources or combination identifiers of port groups of channel measurement resources. wherein the multiple port group identifiers corresponding to the combination identifier of each channel measurement resource port group are determined by base station configuration, terminal indication, or based on default rules.

[0141] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0142] like Figure 4 As shown, this embodiment provides a method for transmitting indication information of spatial and frequency domain SD-FD base pairs, wherein the method is executed by a terminal, and the method includes:

[0143] Step 41: Send the coefficients of the second SD-FD base pair, which is different from the first SD-FD base pair, to the base station;

[0144] Wherein, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficient of the SD-FD base pairs other than the first SD-FD base pair; the amplitude coefficient of the second SD-FD base pair is the difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is the difference value relative to the phase coefficient of the first SD-FD base pair.

[0145] In one embodiment, reference coefficient indication information is sent to the base station; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The coefficients of a second SD-FD base pair are sent to the base station; wherein the amplitude coefficient of the second SD-FD base pair is a difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is a difference value relative to the phase coefficient of the first SD-FD base pair.

[0146] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0147] like Figure 5 As shown, this embodiment provides a method for receiving indication information of spatial and frequency domain SD-FD base pairs, wherein the method is executed by a base station, and the method includes:

[0148] Step 51: Receive the instruction information sent by the terminal;

[0149] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0150] The terminals involved in this disclosure may be, but are not limited to, mobile phones, wearable devices, vehicle terminals, roadside units (RSUs), smart home terminals, industrial sensing devices, and / or medical devices. In some embodiments, the terminal may be a Redcap terminal or a predetermined version of a New Radio (NR) terminal (e.g., an R17 NR terminal).

[0151] This base station serves as the interface device for terminals to access the network. Base stations can be of various types, such as 3G, 4G, 5G, or other evolved base stations.

[0152] In one embodiment, in response to the establishment of a Radio Resource Control (RRC) connection, an indication message sent by a terminal is received; wherein the indication message is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0153] In one embodiment, a request to obtain indication information is sent to the terminal; and the indication information sent by the terminal is received; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0154] In one embodiment, information for determining the first quantity is sent to the terminal; and indication information sent by the terminal is received; wherein the indication information is used to indicate: a first quantity of SD-FD base pairs, and coefficients corresponding to at least one of the first quantity of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0155] In one embodiment, a receiving terminal sends indication information; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs; the first number is determined based on codebook parameter configuration information sent by the base station and / or the number of SD-FD base pairs sent by the base station.

[0156] In one embodiment, codebook parameter configuration information is sent to the terminal; and indication information is received from the terminal; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0157] For example, please refer again to L and p in Table 1 for the codebook parameter configuration information. υ and β, where M υ (For example, ), where N3 and R can be obtained based on other configuration information, then based on the p in the codebook parameter configuration information. υ You can get M υ M υ That is, M of the vth layer. Therefore, the first quantity determined based on Table 1 is β2LM (the number of base pairs indicated by each layer). For example, Table 1 can be found in Rel-16 Type II - Table 1. It should be noted that the values ​​of each parameter may differ from those in Table 1, and this disclosure does not impose any restrictions.

[0158] For example, the codebook parameter configuration information can be found again in Table 2 for M, α, and β, where N1 and N2 can be obtained through other configuration information. Therefore, the first quantity determined based on Table 2 is 2αβN1N2M (the number of base pairs indicated per layer). For example, Table 2 can be found in the parameter table of the Rel-17 Type II port selection codebook - Table 2. It should be noted that the values ​​of each parameter may differ from those in Table 2, and this disclosure does not impose any restrictions.

[0159] It should be noted that the determination of the first quantity is not limited to the parameter form in the table above; it simply means that the terminal determines the first quantity by having the base station provide the values ​​of these parameters.

[0160] In one embodiment, the terminal sends information about the number of SD-FD base pairs; and receives indication information sent by the terminal; wherein the indication information indicates: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0161] In one embodiment, a receiving terminal sends indication information; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs. The amplitude coefficients are non-zero coefficients.

[0162] It should be noted that if the amplitude coefficient of the selected SD-FD base pair is 0, the terminal will indicate that the selected SD-FD base pair will not include this SD-FD base pair.

[0163] In one embodiment, a receiving terminal sends indication information; wherein the indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficient and / or phase coefficient of the SD-FD base pair. The amplitude coefficient of the SD-FD base pair is non-zero.

[0164] In one embodiment, a receiving terminal sends indication information; wherein the indication information indicates: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include amplitude coefficients and / or phase coefficients of the SD-FD base pairs; the number of bits in the information field of the indication information is determined based on the first number. For example, if the first number is greater than a number threshold, the number of bits in the information field may be greater than a reference threshold; or, if the first number is less than a number threshold, the number of bits in the information field may be less than a reference threshold.

[0165] For example, the number of enhanced bits based on Rel-16type II is:

[0166]

[0167] Where N1 and N2 correspond to the number of beams in the first and second dimensions, respectively, and N3 is the number of frequency domain basis vectors. When N3 is greater than 19, N3 can be replaced by a smaller frequency domain window length. In similar related technologies, the frequency domain window length is 2M, where M is the number of frequency domain basis vectors to be selected. The pair number is the first quantity.

[0168] For example, the number of enhanced bits based on the Rel-17 type II port selection codebook is:

[0169]

[0170] Where N1 and N2 correspond to the number of beams in the first and second dimensions, respectively, and N is the length of the frequency domain window. The number of pairs is the first quantity.

[0171] In one embodiment, the SD-FD base pair includes a first SD-FD base pair and a second SD-FD base pair.

[0172] In one embodiment, a reference coefficient indication information is sent by a receiving terminal; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair among the SD-FD base pairs; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficients of the SD-FD base pairs other than the first SD-FD base pair among the SD-FD base pairs. For example, the reference amplitude coefficient is the largest coefficient among the amplitude coefficients of the SD-FD base pairs.

[0173] In one embodiment, the SD-FD base pair corresponding to the reference amplitude coefficient is first indicated, and the required number of bits is:

[0174]

[0175] Among them, the number of pairs is the first quantity.

[0176] It should be noted that the amplitude of the SD-FD base pair can be normalized to 1 and the phase to 0, in which case it does not need to be reported. For the amplitude and phase of other SD-FD base pairs, the difference values ​​of the SD-FD base pairs corresponding to the reference amplitude coefficients can be reported.

[0177] In one embodiment, reference coefficient indication information is received by the terminal for different polarization directions; wherein, the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0178] In one embodiment, reference coefficient indication information sent by a receiving terminal is received in units of one or more channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0179] In one embodiment, reference coefficient indication information sent by the terminal is received on a unit of one or more port groups of channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0180] In one embodiment, a receiving terminal sends reference coefficient indication information; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information; or, the reference coefficient indication information includes port group identification information of the channel measurement resource.

[0181] In one embodiment, a receiving terminal sends reference coefficient indication information; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information in response to one or more channel measurement resources; or, in response to one or more port groups of channel measurement resources, the reference coefficient indication information includes port group identification information of the channel measurement resources.

[0182] In one embodiment, a reference coefficient indication information is received by a receiving terminal; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. If the terminal sends the reference coefficient indication information in units of multiple channel measurement resources, the reference coefficient indication information includes multiple channel measurement resource identifiers or includes channel measurement resource combination identifiers; wherein the multiple channel measurement resource identifiers corresponding to each channel measurement resource combination identifier are determined by base station configuration, terminal indication, or based on default rules. Alternatively, if the terminal sends the reference coefficient indication information in units of multiple port groups of channel resources, the reference coefficient indication information includes port group identifiers of channel measurement resources or includes combination identifiers of port groups of combined channel measurement resources; wherein the multiple port group identifiers of the channel measurement resources corresponding to the combination identifier of each channel measurement resource port group are determined by base station configuration, terminal indication, or based on default rules.

[0183] In one embodiment, a receiving terminal sends reference coefficient indication information; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The base station sends the coefficients of a second SD-FD base pair that is different from the first SD-FD base pair; wherein the amplitude coefficient of the second SD-FD base pair is a difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is a difference value relative to the phase coefficient of the first SD-FD base pair.

[0184] In one embodiment, for different Transmitter Receiver Points (TRPs), a reference amplitude coefficient can be indicated for all TRPs. This requires indicating the SD-FD base pair corresponding to the reference amplitude coefficient and the Channel Measurement Resource Identifier (SRI) ID or Port Group ID corresponding to the SRI. Then, the non-reference SD-FD base pairs of that TRP and all SD-FD base pairs of other TRPs are relative values ​​relative to the reference SD-FD base pair corresponding to that reference amplitude coefficient. Alternatively, each TRP can indicate its own reference amplitude coefficient, and the SD-FD base pairs corresponding to other non-reference amplitude coefficients within each TRP are the difference values ​​relative to the reference SD-FD base pairs corresponding to their respective reference amplitude coefficients. That is, different TRPs correspond to different Channel Measurement Resource Identifiers (SRIs) IDs or different TRPs correspond to different Port Group IDs of the Channel Measurement Resources. Therefore, indicating the Channel Measurement Resource Identifier ID or the Port Group ID of the Channel Measurement Resources is equivalent to indicating the TRP.

[0185] In one embodiment, the channel measurement resource can be a Channel State Information Reference Signal (CSI-RS) resource. The port group of the channel measurement resource can be one of multiple port groups divided into ports corresponding to the CSI-RS, and the ports included in each port group are configured by the base station or determined based on default rules.

[0186] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0187] like Figure 6 As shown, this embodiment provides a method for receiving indication information of spatial and frequency domain SD-FD base pairs, wherein the method is executed by a base station, and the method includes:

[0188] Step 61: Receive reference coefficient indication information sent by the terminal;

[0189] The reference coefficient indication information is used to indicate the first SD-FD base pair in the SD-FD base pair.

[0190] In one embodiment, a reference coefficient indication information is sent by a receiving terminal; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair in the SD-FD base pairs; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficients of the SD-FD base pairs other than the first SD-FD base pair in the SD-FD base pairs.

[0191] In one embodiment, reference coefficient indication information is received by the terminal for different polarization directions; wherein, the reference coefficient indication information is used to indicate the first SD-FD base pair in the SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficient of the SD-FD base pairs other than the first SD-FD base pair in the SD-FD base pairs.

[0192] In one embodiment, reference coefficient indication information sent by a receiving terminal is received in units of one or more channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0193] In one embodiment, reference coefficient indication information sent by the terminal is received on a unit of one or more port groups of channel measurement resources; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient.

[0194] In one embodiment, a receiving terminal sends reference coefficient indication information; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information; or, the reference coefficient indication information includes port group identification information of the channel measurement resource.

[0195] In one embodiment, a receiving terminal sends reference coefficient indication information; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The reference coefficient indication information includes channel measurement resource identification information in response to one or more channel measurement resources; or, in response to one or more port groups of channel measurement resources, the reference coefficient indication information includes port group identification information of the channel measurement resources.

[0196] In one embodiment, a reference coefficient indication information is received by a receiving terminal; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; and the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. If the terminal sends the reference coefficient indication information in units of multiple channel measurement resources, the reference coefficient indication information includes multiple channel measurement resource identifiers or channel measurement resource combination identifiers; wherein the multiple channel measurement resource identifiers corresponding to each channel measurement resource combination identifier are determined by base station configuration, terminal indication, or based on default rules. Alternatively, if the terminal sends the reference coefficient indication information in units of multiple port groups of channel resources, the reference coefficient indication information includes multiple port group identifiers of channel measurement resources or combination identifiers of port groups of channel measurement resources; wherein the multiple port group identifiers of the channel measurement resources corresponding to the combination identifier of each channel measurement resource port group are determined by base station configuration, terminal indication, or based on default rules.

[0197] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0198] like Figure 7 As shown, this embodiment provides a method for receiving indication information of spatial and frequency domain SD-FD base pairs, wherein the method is executed by a base station, and the method includes:

[0199] Step 71: Receive the predetermined coefficients of the second SD-FD base pair, which is different from the first SD-FD base pair, sent by the receiving terminal;

[0200] Wherein, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, and the reference amplitude coefficient is not less than the amplitude coefficient of the SD-FD base pairs other than the first SD-FD base pair; the amplitude coefficient of the second SD-FD base pair is the difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is the difference value relative to the phase coefficient of the first SD-FD base pair.

[0201] In one embodiment, a reference coefficient indication information is sent by a receiving terminal; wherein the reference coefficient indication information is used to indicate a first SD-FD base pair; the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient. The coefficients of a second SD-FD base pair are sent to the base station; wherein the amplitude coefficient of the second SD-FD base pair is a difference value relative to the reference amplitude coefficient; the phase coefficient of the second SD-FD base pair is a difference value relative to the phase coefficient of the first SD-FD base pair.

[0202] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0203] like Figure 8 As shown, this embodiment provides a means for transmitting indication information of spatial and frequency domain SD-FD base pairs, wherein the means includes:

[0204] The transmitting module 81 is used to send indication information to the base station;

[0205] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0206] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0207] like Figure 9 As shown, this embodiment provides a receiving device for indicating information of spatial and frequency domain SD-FD base pairs, wherein the device includes:

[0208] The receiving module 91 is used to receive indication information sent by the terminal;

[0209] The indication information is used to indicate: a first number of SD-FD base pairs, and coefficients corresponding to at least one of the first number of SD-FD base pairs; the coefficients include the amplitude coefficients and / or phase coefficients of the SD-FD base pairs.

[0210] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0211] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0212] like Figure 10 As shown, this embodiment provides a system for transmitting indication information of spatial and frequency domain SD-FD base pairs. The system includes a terminal 101 and a base station 102. The terminal performs the method described in any embodiment of this disclosure, and the base station performs the method described in any embodiment of this disclosure.

[0213] It should be noted that those skilled in the art will understand that the methods provided in the embodiments of this disclosure can be executed alone or together with some methods in the embodiments of this disclosure or some methods in related technologies.

[0214] This disclosure provides a communication device, which includes:

[0215] processor;

[0216] Memory used to store processor-executable instructions;

[0217] The processor is configured to implement, when running executable instructions, the methods applicable to any embodiment of this disclosure.

[0218] The processor may include various types of storage media, which are non-transitory computer storage media that can continue to store information after the communication device loses power.

[0219] The processor can connect to the memory via a bus or other means to read executable programs stored in the memory.

[0220] This disclosure also provides a computer storage medium storing a computer-executable program, which, when executed by a processor, implements the methods of any embodiment of this disclosure.

[0221] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0222] Figure 11 This is a block diagram illustrating a user equipment (UE) 800 according to an exemplary embodiment. For example, the user equipment 800 may be a mobile phone, computer, digital broadcast user equipment, messaging transceiver, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0223] Reference Figure 11 User equipment 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input / output (I / O) interface 812, sensor component 814, and communication component 816.

[0224] Processing component 802 typically controls the overall operation of user equipment 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0225] Memory 804 is configured to store various types of data to support the operation of user equipment 800. Examples of this data include instructions for any application or method operating on user equipment 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0226] Power supply component 806 provides power to various components of user equipment 800. Power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to user equipment 800.

[0227] Multimedia component 808 includes a screen that provides an output interface between the user equipment 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the user equipment 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0228] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when user equipment 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0229] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0230] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of user equipment 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of user equipment 800, changes in position of user equipment 800 or a component of user equipment 800, the presence or absence of user contact with user equipment 800, orientation or acceleration / deceleration of user equipment 800, and temperature changes of user equipment 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, gyroscope, magnetometer, pressure sensor, or temperature sensor.

[0231] Communication component 816 is configured to facilitate wired or wireless communication between user equipment 800 and other devices. User equipment 800 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0232] In an exemplary embodiment, the user equipment 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0233] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of a user device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0234] like Figure 12 As shown, one embodiment of this disclosure illustrates the structure of a base station. For example, base station 900 can be provided as a network-side device. (Refer to...) Figure 12 The base station 900 includes a processing component 922, which further includes one or more processors, and memory resources represented by a memory 932 for storing instructions executable by the processing component 922, such as application programs. The application programs stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 922 is configured to execute instructions to perform any of the methods described above applied to the base station, such as... Figure 2-6 The method shown.

[0235] Base station 900 may also include a power supply component 926 configured to perform power management of base station 900, a wired or wireless network interface 950 configured to connect base station 900 to a network, and an input / output (I / O) interface 958. Base station 900 can operate on an operating system stored in memory 932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0236] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0237] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for transmitting indication information of a spatial domain and frequency domain (SD-FD) base pair, wherein, The method is executed by a terminal, and the method includes: The system sends indication information to the base station, the indication information indicating: a first number of SD-FD base pairs; the indication information includes reference coefficient indication information for different polarization directions, the reference coefficient indication information indicating a first SD-FD base pair among the first number of SD-FD base pairs, the amplitude coefficient of the first SD-FD base pair being a reference amplitude coefficient, the reference amplitude coefficient being not less than the amplitude coefficient of a second SD-FD base pair other than the first SD-FD base pair among the first number of SD-FD base pairs; the reference amplitude coefficient is indicated for each transmit-receive point (TRP) and for each polarization direction; The coefficients corresponding to the second SD-FD base pairs (excluding the first SD-FD base pairs) in the first number of SD-FD base pairs are sent to the base station, wherein the amplitude coefficient of the first SD-FD base pair is normalized to 1, and the phase coefficient of the first SD-FD base pair is zero; the amplitude coefficient of the second SD-FD base pair is the difference value relative to the reference amplitude coefficient; and the phase coefficient of the second SD-FD base pair is the difference value relative to the phase coefficient of the first SD-FD base pair. Wherein, the reference coefficient indication information includes channel measurement resource identification information, taking one or more channel measurement resources as a unit; or, taking one or more port groups of channel measurement resources as a unit, the reference coefficient indication information includes port group identification information of channel measurement resources.

2. The method of claim 1, wherein, The method also includes one of the following: Receive codebook parameter configuration information sent by the base station, and determine the first quantity based on the codebook parameter configuration information; Receive the number of SD-FD base pairs sent by the base station, and determine the first number based on the number of SD-FD base pairs; as well as The system receives codebook parameter configuration information and SD-FD base pair quantity information sent by the base station, and determines the first quantity based on the codebook parameter configuration information and SD-FD base pair quantity information.

3. The method of claim 1, wherein, The number of bits in the information field of the indication information is determined based on the first number.

4. A receiving method of indication information of a space-frequency (SD-FD) pair, wherein, The method is executed by a base station, and the method includes: Receive instruction information sent by the terminal; The indication information is used to indicate: a first number of SD-FD base pairs; the indication information includes reference coefficient indication information for different polarization directions, the reference coefficient indication information is used to indicate a first SD-FD base pair among the first number of SD-FD base pairs, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, the reference amplitude coefficient is not less than the amplitude coefficient of a second SD-FD base pair other than the first SD-FD base pair among the first number of SD-FD base pairs; the reference amplitude coefficient is indicated for each transmit / receive point (TRP) and for each polarization direction; The system receives coefficients corresponding to the second SD-FD base pairs (excluding the first SD-FD base pairs) from the first number of SD-FD base pairs sent by the terminal, wherein the amplitude coefficient of the first SD-FD base pair is normalized to 1, and the phase coefficient of the first SD-FD base pair is zero; the amplitude coefficient of the second SD-FD base pair is the difference value relative to the reference amplitude coefficient; and the phase coefficient of the second SD-FD base pair is the difference value relative to the phase coefficient of the first SD-FD base pair. Wherein, the reference coefficient indication information includes channel measurement resource identification information, taking one or more channel measurement resources as a unit; or, taking one or more port groups of channel measurement resources as a unit, the reference coefficient indication information includes port group identification information of channel measurement resources.

5. The method according to claim 4, wherein, The method also includes one of the following: Receive codebook parameter configuration information sent by the base station, and determine the first quantity based on the codebook parameter configuration information; Receive the number of SD-FD base pairs sent by the base station, and determine the first number based on the number of SD-FD base pairs; as well as The system receives codebook parameter configuration information and SD-FD base pair quantity information sent by the base station, and determines the first quantity based on the codebook parameter configuration information and SD-FD base pair quantity information.

6. The method according to claim 4, wherein, The number of bits in the information field of the indication information is determined based on the first number.

7. A means for transmitting indication information of spatial and frequency domain SD-FD base pairs, wherein, The device includes: The transmitting module is used to send indication information to the base station; The indication information is used to indicate: a first number of SD-FD base pairs; the indication information includes reference coefficient indication information for different polarization directions, the reference coefficient indication information is used to indicate a first SD-FD base pair among the first number of SD-FD base pairs, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, the reference amplitude coefficient is not less than the amplitude coefficient of a second SD-FD base pair other than the first SD-FD base pair among the first number of SD-FD base pairs; the reference amplitude coefficient is indicated for each transmit / receive point (TRP) and for each polarization direction; The transmitting module is further configured to transmit to the base station the coefficients corresponding to the second SD-FD base pairs (excluding the first SD-FD base pairs) in the first number of SD-FD base pairs, wherein the amplitude coefficient of the first SD-FD base pair is normalized to 1, and the phase coefficient of the first SD-FD base pair is zero; the amplitude coefficient of the second SD-FD base pair is a difference value relative to the reference amplitude coefficient; and the phase coefficient of the second SD-FD base pair is a difference value relative to the phase coefficient of the first SD-FD base pair. Wherein, the reference coefficient indication information includes channel measurement resource identification information, taking one or more channel measurement resources as a unit; or, taking one or more port groups of channel measurement resources as a unit, the reference coefficient indication information includes port group identification information of channel measurement resources.

8. A receiving apparatus for indicating information of spatial and frequency domain SD-FD base pairs, wherein, The device includes: The receiving module is used to receive indication information sent by the terminal; The indication information is used to indicate: a first number of SD-FD base pairs; the indication information includes reference coefficient indication information for different polarization directions, the reference coefficient indication information is used to indicate a first SD-FD base pair among the first number of SD-FD base pairs, the amplitude coefficient of the first SD-FD base pair is a reference amplitude coefficient, the reference amplitude coefficient is not less than the amplitude coefficient of a second SD-FD base pair other than the first SD-FD base pair among the first number of SD-FD base pairs; the reference amplitude coefficient is indicated for each transmit / receive point (TRP) and for each polarization direction; The receiving module is further configured to receive coefficients corresponding to the second SD-FD base pairs (excluding the first SD-FD base pairs) from the first number of SD-FD base pairs sent by the terminal, wherein the amplitude coefficient of the first SD-FD base pair is normalized to 1, and the phase coefficient of the first SD-FD base pair is zero; the amplitude coefficient of the second SD-FD base pair is a difference value relative to the reference amplitude coefficient; and the phase coefficient of the second SD-FD base pair is a difference value relative to the phase coefficient of the first SD-FD base pair. Wherein, the reference coefficient indication information includes channel measurement resource identification information, taking one or more channel measurement resources as a unit; or, taking one or more port groups of channel measurement resources as a unit, the reference coefficient indication information includes port group identification information of channel measurement resources.

9. A system for transmitting indication information of spatial and frequency domain SD-FD base pairs, wherein, The system includes a terminal and a base station, wherein the terminal performs the method as described in any one of claims 1 to 3, and the base station performs the method as described in any one of claims 4 to 6.

10. A communication device, wherein, include: Memory; A processor, connected to the memory, is configured to execute computer-executable instructions stored in the memory and to implement the method of any one of claims 1 to 3 or 4 to 6.

11. A computer storage medium storing computer-executable instructions, which, when executed by a processor, enable the implementation of the method according to any one of claims 1 to 3 or 4 to 6.

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