A transmission parameter processing method and device

Abstract

The present invention discloses a transmission parameter processing method and apparatus, including: a base station transmitting first precoding configuration information for a first time window via first physical layer signaling; and the base station transmitting second precoding configuration information for a second time window via first physical layer signaling or second physical layer signaling based on pre-set conditions. The technical solution provided by the present invention reduces control overhead.

Description

[0001] This application is a divisional application of patent application No. 201710314129.3 (the filing date of the original application is May 5, 2017, and the invention is entitled "A Transmission Parameter Processing Method and Device"). Technical Field

[0002] The present invention relates to, but is not limited to, a wireless communication system, and in particular to a transmission parameter processing method and apparatus. Background Art

[0003] In the Long Term Evolution (LTE) system, only one antenna panel and a relatively small number of antenna elements are considered, such as 2 antenna elements and 4 antenna elements. The uplink measurement pilot sounding reference signal (SRS) is non-precoded and is directly mapped to the antenna port by the antenna element. Therefore, the uplink transmission is relatively simple. In 5G wireless access (5G NR), since more antenna elements may be supported, up to 32 antenna elements may be supported, more ports may be supported, in addition to 1, 2, and 4, a larger number of ports may also be supported. It may support the reception of multiple RF beams by the terminal and may support uplink sub-band precoding. Therefore, uplink multiple-input multiple-output (MIMO) transmission is much more complicated than in LTE.

[0004] In 5G NR, the design of uplink MIMO transmission faces significant technical challenges. A key issue is the excessive physical layer signaling overhead. There is a significant increase in overhead just for precoding-related parameters. For example, due to the more complex codebook and higher quantization accuracy requirements, the corresponding precoding matrix indication (PMI) signaling overhead will also increase significantly. Due to the increase in the number of supported transmission layers, the corresponding RI and PMI indication overhead will also increase. Support for subband PMI indications significantly increases signaling overhead compared to wideband PMI feedback. Furthermore, the increase in control signaling overhead affects the robustness of control signaling transmission and can lead to a decrease in transmission efficiency.

[0005] That is to say, in 5G NR, how to optimize the control signaling overhead is an important technical problem that needs to be solved. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a transmission parameter processing method and device, which can save control overhead.

[0007] In order to achieve the purpose of the present invention, on the one hand, the present invention provides a transmission parameter processing method, including: the base station sends precoding first configuration information that acts on a first time window through a first physical layer signaling; the base station sends precoding second configuration information that acts on a second time window through a first physical layer signaling or a second physical layer signaling according to preset conditions.

[0008] Optionally, the second precoding configuration information is independent information: for the same type of parameters, if the first precoding configuration information and the second precoding configuration information are both effective within a period of time, the second precoding configuration information takes precedence over the first precoding configuration information for determining the final configuration of the parameter; or

[0009] The second precoding configuration information is dependent information, and within its effective time, is combined with the first precoding configuration information to determine the final precoding configuration information.

[0010] The present invention also provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: any one of the transmission parameter processing methods described above.

[0011] The present invention further provides a base station, comprising the above-mentioned transmission parameter processing device.

[0012] The present invention further provides a computer-readable storage medium, on which a computer program is stored. The computer program is executed by a processor to implement any of the above-mentioned transmission parameter processing methods.

[0013] The present invention also provides a transmission parameter processing method, comprising:

[0014] The terminal detects the first precoding configuration information acting on the first time window through the first physical layer signaling; and detects the second precoding configuration information acting on the second time window through the first physical layer signaling or the second physical layer signaling.

[0015] The terminal determines final precoding configuration information according to the first precoding configuration information and / or the second precoding configuration information.

[0016] Optionally, when the terminal detects the second precoding configuration information, determining the final precoding configuration information according to the first precoding configuration information and / or the second precoding configuration information includes:

[0017] The terminal replaces the first precoding configuration information with the second precoding configuration information to determine final precoding configuration information; or,

[0018] The terminal determines final precoding configuration information in conjunction with the first precoding configuration information within the validity period of the second precoding configuration information.

[0019] The present invention also provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: any one of the transmission parameter processing methods described above.

[0020] The present invention further provides a terminal, comprising the above-mentioned transmission parameter processing device.

[0021] The present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, any of the above-mentioned transmission parameter processing methods is implemented.

[0022] On the other hand, the present invention provides a transmission parameter processing method, comprising: a base station pre-configuring multiple sets of precoding configuration information acting on a first time window through signaling and sending the pre-configured information;

[0023] The base station selects one or more sets of precoding configuration information acting on the second time window from the preconfigured multiple sets of precoding configuration information through physical layer signaling for uplink transmission and sends precoding configuration indication information to the terminal.

[0024] Optionally, the precoding configuration information includes one or more of the following:

[0025] Codebook selection information; codeword set selection information; precoding granularity information; subband selection information; precoding indication information; subband number information; subband division information; precoding mode information; maximum number of transmission layers information.

[0026] Optionally, the pre-configured multiple sets of precoding configuration information include at least one of the following:

[0027] The base station performs different precoding configurations for different numbers of transmission layers to form the multiple sets of precoding configuration information;

[0028] The base station performs different precoding configurations for different sounding reference signal SRS ports or SRS port groups or SRS resources to form the multiple sets of precoding configuration information;

[0029] 1. The base station performs different precoding configurations for different terminal UEs to form the multiple sets of precoding configuration information;

[0030] The base station performs different precoding configurations for different links to form the multiple sets of precoding configuration information;

[0031] The base station performs different precoding configurations for different antenna panels to form the multiple sets of precoding configuration information;

[0032] The base station performs different precoding configurations on the demodulation reference signal and the data channel respectively to form the multiple sets of precoding configuration information;

[0033] 2. The base station performs different precoding configurations for different demodulation reference signal DMRS port groups or layer groups to form the multiple sets of precoding configuration information;

[0034] The base station performs the different precoding configurations for different sending / or transmission modes respectively to form the multiple sets of precoding configuration information.

[0035] The present invention also provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: any one of the transmission parameter processing methods described above.

[0036] The present invention further provides a base station, comprising the above-mentioned transmission parameter processing device.

[0037] The present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program implements any of the above-mentioned transmission parameter processing methods.

[0038] The present invention also provides a transmission parameter processing method, comprising:

[0039] The terminal determines, through signaling sent by the base station, multiple sets of precoding configuration information acting on the first time window;

[0040] The terminal detects the coding configuration indication information acting on the second time window in the physical downlink control channel, and performs uplink transmission according to the precoding configuration information indicated by the coding configuration indication information.

[0041] The present invention further provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: the above-mentioned transmission parameter processing method.

[0042] The present invention also provides a terminal, comprising the above-mentioned transmission parameter processing device.

[0043] The present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned transmission parameter processing method is implemented.

[0044] In another aspect, the present invention provides a transmission parameter processing method, comprising:

[0045] The base station selects X SRS resource subsets from the sounding reference signal SRS resources;

[0046] The base station determines Y transmission resource groups, where the Y transmission resource groups are used for transmitting one or more uplink transmission coding blocks;

[0047] The base station sends indication information of X SRS resource subsets to the terminal. The X SRS resource subsets are used to determine transmission parameters of Y transmission resource groups;

[0048] The base station configures corresponding transmission parameter indication information for each of the X SRS resource subsets and / or the Y transmission resource groups;

[0049] Wherein, X is a natural number greater than or equal to 1; Y is a natural number greater than or equal to 1.

[0050] Optionally, the X SRS resource subsets are used to determine data channel or control channel transmission parameters;

[0051] The data channel determines its transmission parameters according to the transmission parameters of the SRS;

[0052] Alternatively, the control channel determines its transmission parameters according to the transmission parameters of the SRS.

[0053] Optionally, the transmission parameters include any combination of the following parameters: precoding parameters, power parameters, mapping indication parameters between ports and antennas

[0054] Optionally, the method of selecting X SRS resource subsets from the SRS resources includes:

[0055] Select according to the pre-agreed division method of the SRS resource subset; or,

[0056] The base station determines a division method of the SRS resource subset and configures the SRS resource subset to the terminal;

[0057] The base station may select the X SRS resource subsets according to the reception quality of the SRS.

[0058] Optionally, the division manner of the Y transmission resource groups includes a combination of one or more of the following:

[0059] Divided according to the transport layer;

[0060] Divide by antenna or antenna panel;

[0061] Divided by transmission channel;

[0062] Divide according to time-frequency resources;

[0063] Divide according to the transmission beam resources.

[0064] Optionally, the indication information of the SRS resource subset is indicated by high-layer configuration and / or physical layer signaling.

[0065] Optionally, the value of Y is pre-agreed: Y=X; or, the value of Y is configured by the base station.

[0066] Optionally, the correspondence between the X SRS resource subsets and the Y transmission resource groups is pre-agreed or configured by the base station.

[0067] Optionally, the transmission parameter indication information includes: one or more of: demodulation reference signal DMRS port allocation indication information and coding block / coding block group configuration information.

[0068] Optionally, the transmission parameter indication information further includes one or more of transmission layer number indication information and precoding indication information.

[0069] The present invention also provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: any one of the transmission parameter processing methods described above.

[0070] The present invention further provides a base station, comprising the above-mentioned transmission parameter processing device.

[0071] The present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, any of the above-mentioned transmission parameter processing methods is implemented.

[0072] The present invention also provides a transmission parameter processing method, comprising:

[0073] The terminal determines X SRS resource subsets from the sounding reference signal SRS resources; where X is a natural number greater than or equal to 1;

[0074] The terminal determines Y transmission resource groups and corresponding transmission resources; wherein the Y transmission resource groups are used for transmission of one or more uplink transmission coding blocks, and Y is a natural number greater than or equal to 1;

[0075] The terminal determines the correspondence between X SRS resource subsets and Y transmission resource subgroups;

[0076] The terminal determines transmission parameters of Y transmission resource subgroups according to the X SRS resource subsets.

[0077] Optionally, the X SRS resource subsets are used to determine data channel or control channel transmission parameters;

[0078] The data channel determines its transmission parameters according to the transmission parameters of the SRS; or the control channel determines its transmission parameters according to the transmission parameters of the SRS.

[0079] Optionally, determining X SRS resource subsets includes:

[0080] The terminal determines the X SRS resource subsets according to an agreed division method of the SRS resource subsets; or,

[0081] The terminal determines the X SRS resource subsets according to the SRS resource subset division method indicated by the configuration signaling from the base station.

[0082] The present invention also provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: any one of the transmission parameter processing methods described above.

[0083] The present invention further provides a terminal, comprising the above-mentioned transmission parameter processing device.

[0084] The present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, any of the above-mentioned transmission parameter processing methods is implemented.

[0085] Compared to existing technologies, the technical solution of one aspect of this application includes at least: a base station transmits first precoding configuration information for a first time window via first physical layer signaling; and the base station transmits second precoding configuration information for a second time window via first physical layer signaling or second physical layer signaling based on pre-set conditions. The technical solution provided by the present invention reduces control overhead.

[0086] The technical solution of another aspect of the present application includes at least: the base station pre-configures multiple sets of precoding configuration information acting on the first time window through signaling and sends them; the base station selects one or more sets of precoding configuration information acting on the second time window from the pre-configured multiple sets of precoding configuration information through physical layer signaling for uplink transmission and sends precoding configuration indication information to the terminal. The technical solution provided by the present invention saves control overhead.

[0087] The technical solution of one aspect of the present application includes at least: a base station selects X SRS resource subsets from SRS resources; the base station determines Y transmission resource groups, wherein the Y transmission resource groups are used to transmit one or more uplink transmission coding blocks; the base station sends indication information of the X SRS resource subsets to a terminal. The X SRS resource subsets are used to determine transmission parameters for the Y transmission resource groups; the base station configures corresponding transmission parameter indication information for the X SRS resource subsets and / or the Y transmission resource groups; wherein X is a natural number greater than or equal to 1; and Y is a natural number greater than or equal to 1. The technical solution provided by the present invention saves control overhead.

[0088] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0090] Figure 1 Schematic diagram of the flow of a first embodiment of a method for processing transmission parameters of the present invention;

[0091] Figure 2 Schematic diagram of the flow of a second embodiment of the transmission parameter processing method of the present invention;

[0092] Figure 3 A schematic diagram of an implementation example of a time window of the present invention;

[0093] Figure 4 1 is a flow chart of a third embodiment of a method for processing transmission parameters according to the present invention;

[0094] Figure 5 4 is a flow chart of a fourth embodiment of a method for processing transmission parameters according to the present invention;

[0095] Figure 6 A schematic diagram of an embodiment of configuring precoding configuration information and indicating selected precoding configuration information according to the present invention;

[0096] Figure 7 2 is a flow chart of a fifth embodiment of a method for processing transmission parameters according to the present invention;

[0097] Figure 8 Schematic diagram of dividing SRS resource subsets according to the time domain symbol group or slot group to which the SRS belongs in an embodiment of the present invention;

[0098] Figure 9 Schematic diagram of the correspondence between SRS resource subsets and transmission resource groups in an embodiment of the present invention;

[0099] Figure 10 1 is a flow chart of a sixth embodiment of a method for processing transmission parameters according to the present invention;

[0100] Figure 11 Schematic diagram of an embodiment of determining transmission parameters of a transmission resource subgroup for an SRS resource subset according to the present invention. DETAILED DESCRIPTION

[0101] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any manner.

[0102] Figure 1 FIG. 1 is a flow chart of a first embodiment of a method for processing transmission parameters according to the present invention. Figure 1 As shown, the following steps are included:

[0103] Step 100: The base station sends first precoding configuration information acting on a first time window through first physical layer signaling.

[0104] Optionally, the first precoding configuration information is applied to a first time window T1, which may be a pre-agreed time window, such as a time slot. Applying to the first time window means that if the first precoding configuration information is to take effect, it takes effect within the first time window.

[0105] Optionally, the length of the first time window T1 may be indicated in the first physical layer control signaling;

[0106] Optionally, the first time window T1 may also be defined in an event manner, for example, the start time is the time of pre-coding the first configuration information, and the end time is the time when a certain agreed signaling information is received.

[0107] Optionally, the first precoding configuration information includes one or more of the following information:

[0108] Subband number information; subband division indication information; subband selection information; subband precoding information; subband precoding codebook configuration information; maximum number of transmission layers information.

[0109] Step 101: The base station sends precoding second configuration information acting on a second time window through first physical layer signaling or second physical layer signaling according to a preset condition.

[0110] Optionally, the pre-set conditions may be, for example, current channel status, interference conditions, and the like.

[0111] Optionally, the second precoding configuration information is applied to a second time window T2. The second time window T2 may be a pre-agreed time window, such as a certain slot or slots. Applying to the second time window means that if the second precoding configuration information is to take effect, it takes effect within the first time window.

[0112] Optionally, the size of the second time window T2 may be one slot, for example, a slot for receiving the second precoding configuration information; the size of the second time window T2 may also be multiple slots.

[0113] Optionally, the second time window may be indicated in the first physical layer control signaling, or may be determined according to the time of the received second physical layer control signaling.

[0114] Optionally, the second precoding configuration information includes one or more of the following information:

[0115] Subband number information; subband division indication information; subband selection information; subband precoding information; subband precoding codebook configuration information; maximum number of transmission layers information.

[0116] Optionally, the second time window T2 may be pre-agreed between a transceiver such as a base station and a terminal, or may be configured by the base station.

[0117] Optionally, the second precoding configuration information can be independent information. For the same type of parameter, if both the first and second precoding configuration information are in effect within a certain period of time, the second precoding configuration information takes precedence over the first precoding configuration information to determine the final configuration of the parameter. The second precoding configuration information can also be dependent information and, during its effective period, is used in conjunction with the first precoding configuration information to determine the final precoding configuration information. Furthermore, the second precoding configuration information can overwrite the first precoding configuration information.

[0118] An embodiment of the present invention also provides a transmission parameter processing device, including a processor, a memory, and a computer program stored in the memory and executable on the processor: sending precoding first configuration information acting on a first time window through a first physical layer signaling; and sending precoding second configuration information acting on a second time window through a first physical layer signaling or a second physical layer signaling according to preset conditions.

[0119] An embodiment of the present invention further provides a base station, comprising any one of the above-mentioned transmission parameter processing devices.

[0120] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, at least the following steps are implemented: sending precoding first configuration information acting on a first time window through a first physical layer signaling; and sending precoding second configuration information acting on a second time window through a first physical layer signaling or a second physical layer signaling according to preset conditions.

[0121] Figure 2 FIG. 1 is a flow chart of a second embodiment of a method for processing transmission parameters according to the present invention. Figure 2 As shown, the following steps are included:

[0122] Step 200: The terminal detects first precoding configuration information acting on a first time window through first physical layer signaling.

[0123] Optionally, the precoding first configuration information acts on a first time window T1, and the first time window T1 may be a pre-agreed time window, such as a time slot.

[0124] Optionally, the length of the first time window T1 may be indicated in the first physical layer control signaling;

[0125] Optionally, the first time window T1 may also be defined in an event manner, for example, the start time is the time of pre-coding the first configuration information, and the end time is the time when a certain agreed signaling information is received.

[0126] Optionally, the first precoding configuration information includes one or more of the following information:

[0127] Subband number information; subband division indication information; subband selection information; subband precoding information; subband precoding codebook configuration information; maximum number of transmission layers information.

[0128] Step 201: The terminal detects second precoding configuration information acting on a second time window through first physical layer signaling or second physical layer signaling.

[0129] Optionally, the second precoding configuration information is applied to a second time window T2. The second time window T2 may be a pre-agreed time window, such as a certain slot or certain slots.

[0130] Optionally, the second time window may be indicated in the first physical layer control signaling, or may be determined according to the time of the received second physical layer control signaling.

[0131] Optionally, the second precoding configuration information includes one or more of the following information:

[0132] Subband number information; subband division indication information; subband selection information; subband precoding information; subband precoding codebook configuration information; maximum number of transmission layers information.

[0133] Optionally, the size of the second time window T2 may be one slot, for example, a slot for receiving the second precoding configuration information; the size of the second time window T2 may also be multiple slots.

[0134] Optionally, the second time window T2 may be pre-agreed between a transceiver such as a base station and a terminal, or may be configured by the base station.

[0135] Step 202: Determine final precoding configuration information according to the first precoding configuration information and / or the second precoding configuration information.

[0136] When the terminal detects the second precoding configuration information, this step specifically includes:

[0137] The terminal may replace the first precoding configuration information with the second precoding configuration information to determine the final precoding configuration information; or,

[0138] The terminal determines final precoding configuration information in conjunction with the first precoding configuration information within the validity period of the second precoding configuration information.

[0139] An embodiment of the present invention also provides a transmission parameter processing device, including a processor, a memory, and a computer program stored in the memory and executable on the processor: detecting first precoding configuration information acting on a first time window through first physical layer signaling; detecting second precoding configuration information acting on a second time window through first physical layer signaling or second physical layer signaling; and determining final precoding configuration information based on the first precoding configuration information and / or the second precoding configuration information.

[0140] An embodiment of the present invention further provides a terminal, comprising any one of the above transmission parameter processing devices.

[0141] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements at least the following steps: detecting the first precoding configuration information acting on the first time window through the first physical layer signaling; detecting the second precoding configuration information acting on the second time window through the first physical layer signaling or the second physical layer signaling; and determining the final precoding configuration information based on the first precoding configuration information and / or the second precoding configuration information.

[0142] Figure 3 This is a schematic diagram of an implementation example of the time window of the present invention, as shown in FIG. Figure 3As shown, the pre-coding first configuration information acts on the first time window T1; there are two slots respectively serving as the second time window T2, and the pre-coding second configuration information acts on the second time window T2.

[0143] pass Figure 1 and Figure 2 The transmission parameter processing method shown utilizes the correlation of precoding configuration information in the time domain to compress the overhead. In this way, when the first precoding configuration information does not need to be changed, the second precoding configuration information does not need to be sent, thereby effectively saving control overhead.

[0144] Figure 4 FIG. 1 is a flow chart of a third embodiment of a method for processing transmission parameters according to the present invention. Figure 4 As shown, the following steps are included:

[0145] Step 400: The base station pre-configures multiple sets of precoding configuration information for the first time window through signaling and sends them.

[0146] Optionally, multiple sets of precoding configuration information are applied to a first time window T1, where the first time window T1 may be a pre-agreed time window, such as a time slot.

[0147] Optionally, the length of the first time window T1 may be indicated in the first physical layer control signaling;

[0148] Optionally, the first time window T1 may be defined in an event manner, for example, with a start time of the time when the first configuration information is precoded and an end time of the time when a certain agreed signaling information is received. Optionally, the first time window T1 may be defined in an event manner, for example, by radio link control (RRC) signaling, MAC signaling, or physical layer signaling.

[0149] Optionally, the precoding configuration information includes one or more of the following:

[0150] Codebook selection information; codeword set selection information; precoding granularity information; subband selection information; precoding indication information; subband number information; subband division information; precoding mode information; maximum number of transmission layers information.

[0151] Optionally, pre-configuring multiple sets of precoding configuration information includes:

[0152] The base station can perform different precoding configurations for different numbers of transmission layers to form multiple sets of precoding configuration information;

[0153] The base station may perform different precoding configurations for different SRS ports or SRS port groups or SRS resources to form multiple sets of precoding configuration information;

[0154] 3. The base station can perform different precoding configurations for different UEs to form multiple sets of precoding configuration information;

[0155] The base station can perform different precoding configurations for different links to form multiple sets of precoding configuration information;

[0156] The base station can perform different precoding configurations for different antenna panels to form multiple sets of precoding configuration information;

[0157] The base station can perform different precoding configurations for the demodulation reference signal (DMRS) and the data channel to form multiple sets of precoding configuration information;

[0158] 4. The base station can perform different precoding configurations for different DMRS port groups or layer groups to form multiple sets of precoding configuration information;

[0159] 5. The base station may perform different precoding configurations for different sending / or transmission modes respectively to form multiple sets of precoding configuration information.

[0160] Step 401: The base station selects one or more sets of precoding configuration information for use in a second time window from a plurality of pre-configured sets of precoding configuration information through physical layer signaling for uplink transmission and sends precoding configuration indication information to the terminal.

[0161] Optionally, the selected coding configuration indication information is applied to the second time window T2. The second time window T2 may be a pre-agreed time window, such as a certain slot or certain slots.

[0162] Optionally, the second time window may be indicated in the first physical layer control signaling, or may be determined according to the time of the received second physical layer control signaling.

[0163] The precoding configuration information includes one or more of the following:

[0164] Codebook selection information; codeword set selection information; precoding granularity information; subband selection information; precoding indication information; subband number information; subband division information; precoding mode information; maximum number of transmission layers information.

[0165] Optionally, the size of the second time window T2 may be one slot, such as a slot in which the coding configuration indication information is received; the size of the second time window T2 may also be multiple slots.

[0166] Optionally, the second time window T2 may be pre-agreed between a transceiver such as a base station and a terminal, or may be configured by the base station.

[0167] Optionally, the base station may select one or more sets of precoding configuration information from multiple sets of precoding configuration information that are preconfigured for uplink transmission according to the current channel state, interference conditions, etc.

[0168] Optionally, the coding configuration indication information may be carried in physical layer control signaling.

[0169] Optionally, the base station may select precoding configuration information for the DMRS and the data channel / control channel respectively.

[0170] An embodiment of the present invention also provides a transmission parameter processing device, including a processor, a memory, and a computer program stored in the memory and executable on the processor: pre-configuring multiple sets of precoding configuration information acting on a first time window through signaling and sending them; selecting one or more sets of precoding configuration information acting on a second time window from the pre-configured multiple sets of precoding configuration information through physical layer signaling for uplink transmission and sending precoding configuration indication information to the terminal.

[0171] An embodiment of the present invention further provides a base station, comprising any one of the above-mentioned transmission parameter processing devices.

[0172] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements at least the following steps: pre-configuring multiple sets of precoding configuration information that act on the first time window through signaling and sending them; selecting one or more sets of precoding configuration information that act on the second time window from the pre-configured multiple sets of precoding configuration information through physical layer signaling for uplink transmission and sending precoding configuration indication information to the terminal.

[0173] Figure 5 FIG. 4 is a flow chart of a fourth embodiment of a method for processing transmission parameters according to the present invention. Figure 5 As shown, the following steps are included:

[0174] Step 500: The terminal determines multiple sets of precoding configuration information acting on the first time window through signaling sent by the base station.

[0175] Optionally, multiple sets of precoding configuration information are applied to a first time window T1. The first time window T1 may be a pre-agreed time window, such as a time slot.

[0176] Optionally, the length of the first time window T1 may be indicated in the first physical layer control signaling;

[0177] Optionally, the first time window T1 may also be defined in an event manner, for example, the start time is the time of pre-coding the first configuration information, and the end time is the time when a certain agreed signaling information is received.

[0178] Optionally, the coding configuration indication information may be carried in physical layer control signaling.

[0179] Step 501: The terminal detects the coding configuration indication information acting on the second time window in the physical downlink control channel, and performs uplink transmission according to the precoding configuration information indicated by the coding configuration indication information.

[0180] Optionally, the coding configuration indication information is applied to a second time window T2. The second time window T2 may be a pre-agreed time window, such as a certain slot or certain slots.

[0181] Optionally, the size of the second time window T2 may be one slot, for example, a slot for receiving the second precoding configuration information; the size of the second time window T2 may also be multiple slots.

[0182] Optionally, the second time window may be indicated in the first physical layer control signaling, or may be determined according to the time of the received second physical layer control signaling.

[0183] Optionally, the second time window T2 may be pre-agreed between a transceiver such as a base station and a terminal, or may be configured by the base station.

[0184] An embodiment of the present invention also provides a transmission parameter processing device, including a processor, a memory, and a computer program stored in the memory and executable on the processor: detecting multiple sets of precoding configuration information acting on a first time window through signaling; detecting coding configuration indication information acting on a second time window through physical layer signaling, and performing uplink transmission according to the precoding configuration information indicated by the coding configuration indication information.

[0185] An embodiment of the present invention further provides a terminal, comprising any one of the above transmission parameter processing devices.

[0186] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it implements at least the following steps: detecting multiple sets of precoding configuration information acting on the first time window through signaling; detecting coding configuration indication information acting on the second time window through physical layer signaling, and performing uplink transmission according to the precoding configuration information indicated by the coding configuration indication information.

[0187] Figure 6 A schematic diagram of an embodiment of configuring precoding configuration information and indicating selected precoding configuration information according to the present invention, as shown in FIG. Figure 6As shown, it is assumed that the base station performs different precoding configurations for different DMRS port groups / layer groups, and acts on the first time window T1; and it is assumed that the base station selects precoding configuration information for DMRS and data channel / control channel respectively, and the coding configuration indication information acts on two of the slots.

[0188] pass Figure 4 and Figure 5 The transmission parameter processing method shown enables switching of precoding granularity or beam direction changes. This minimizes physical layer overhead while maintaining high flexibility. This adapts to channel time variability, frequency selection, combats sudden interference, and supports transparent uplink switching.

[0189] Figure 7 2 is a flow chart of a fifth embodiment of a method for processing transmission parameters according to the present invention;

[0190] Step 700: The base station selects X SRS resource subsets from the SRS resources.

[0191] Optionally, the X SRS resource subsets are used to determine data channel or control channel transmission parameters, wherein the data channel transmission parameters are determined according to the SRS transmission parameters; or the control channel transmission parameters are determined according to the SRS transmission parameters.

[0192] Optionally, the transmission parameters may include any combination of the following parameters: a precoding parameter, a power parameter, and a mapping indication parameter between ports and antennas.

[0193] Optionally, a method of selecting X SRS resource subsets from the SRS resource includes:

[0194] Select according to the pre-agreed division method of the SRS resource subset; or,

[0195] The base station determines the division method of the SRS resource subset and configures it to the terminal;

[0196] The base station may select the X SRS resource subsets according to the reception quality of the SRS.

[0197] Optionally, the SRS resource subsets may be divided according to one or more combinations of the following methods:

[0198] Divide by SRS port group;

[0199] Divide according to the time domain symbol group or slot group to which SRS belongs, such as Figure 8 As shown;

[0200] 1. Divide by SRS resource.

[0201] Optionally,

[0202] When configuring M sets of SRS resources, the corresponding signaling may vary. Some SRS resources may be periodic, some may be aperiodic, and some may be periodic within a specified time range. Each set of SRS resources may also differ in the number of ports, transmit power, transmit time-frequency resource location, transmit beam, transmit antenna, and transmit channel used.

[0203] In the embodiment of the present invention, SRS resource subsets may be divided according to the configuration of the SRS resource.

[0204] It should be noted that in the embodiments of the present invention, SRS resource is a narrow concept, mainly distinguishing some differences in signaling configuration. However, the resource in SRS resource refers to a broad concept, including time domain resources such as symbols and time slots, frequency domain resources such as subcarriers and subbands, and spatial domain resources such as transmit beam resources, transmit antenna resources, transmit antenna panel resources, and transmit channel resources.

[0205] It should be noted that the above methods of dividing SRS resource subsets can be combined. For example, after dividing based on SRS resource, further division can be performed based on port and / or time domain resources, etc. The specific implementation can be obtained by those skilled in the art based on the technical solution provided by the present invention, which will not be repeated here.

[0206] Step 701: The base station determines Y transmission resource groups.

[0207] The Y transmission resource groups are used for transmitting one or more uplink transmission coding blocks, and these uplink transmission coding blocks are scheduled in the same control signaling.

[0208] Optionally, the Y transmission resource groups can be divided according to the transmission layer, for example, layers 1 and 2 are one group, and layers 3 and 4 are another group; the Y transmission resource groups can also have intersections, for example: layers 1 and 2 are the first group, layers 2 and 3 are the second group, etc.

[0209] Optionally, the Y transmission resource groups can be divided according to antenna division or antenna panel division, for example: the first group corresponds to 1-8 antenna elements, the second group corresponds to 9-16 antenna elements, and so on. These antenna element groups can transmit the same layer, different layers, or completely different layers. These antenna element groups can transmit on the same time-frequency resources, different time-frequency resources, or completely different time-frequency resources. Furthermore, the transmit power can be the same or different, and the transmit beams can be the same or different.

[0210] Optionally, the Y transmission resource groups can be divided according to the transmission (transmitting and receiving) channels, and different groups can send the same layer, or send different layers, or send completely different layers. Alternatively, different groups can send on the same time-frequency resources, or send on different time-frequency resources. Furthermore, the transmission power can be the same or different, and the transmission beams can be the same or different.

[0211] Optionally, the Y transmission resource groups may also be divided according to time-frequency resources, wherein the time-frequency resources of different groups are not completely the same.

[0212] Optionally, the Y transmission resource groups may also be divided according to transmission beam resources, wherein the transmission beams of different groups are not completely the same.

[0213] Step 702: The base station sends indication information of X SRS resource subsets to the terminal, wherein the X SRS resource subsets are used to determine transmission parameters of Y transmission resource groups.

[0214] Optionally, the indication information of the SRS resource subset is indicated by high-layer configuration and / or physical layer signaling.

[0215] Optionally, the SRS resource subset indication information may include one or more of the following:

[0216] 2. SRS resource index (SRI);

[0217] 3. SRS port group ID (SGI);

[0218] 4.SRS time domain position indication;

[0219] 5. The value of X.

[0220] Optionally, the value of Y is agreed upon between a transceiver such as a base station and a terminal: Y=X; or, the value of Y is configured by the base station.

[0221] Optionally, the correspondence between the X SRS resource subsets and the Y transmission resource groups is agreed upon between the transceiver, such as the base station and the terminal, or configured by the base station. Figure 9 shown.

[0222] Step 703: The base station configures corresponding transmission parameter indication information for each of the X SRS resource subsets and / or Y transmission resource groups.

[0223] Optionally, the transmission parameter indication information includes:

[0224] DMRS port allocation indication information (also considered as layer mapping indication information), and / or,

[0225] Coding block (or coding block group) CB (CBG) configuration information.

[0226] Optionally, the transmission parameter indication information may further include one or more of transmission layer number indication information and precoding indication information.

[0227] An embodiment of the present invention further provides a transmission parameter processing apparatus, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: a base station selects X SRS resource subsets from SRS resources; the base station determines Y transmission resource groups, wherein the Y transmission resource groups are used to transmit one or more uplink transmission coding blocks; the base station sends indication information of the X SRS resource subsets to a terminal. The X SRS resource subsets are used to determine transmission parameters for the Y transmission resource groups; and the base station configures corresponding transmission parameter indication information for each of the X SRS resource subsets and / or the Y transmission resource groups.

[0228] An embodiment of the present invention further provides a base station, comprising any one of the above-mentioned transmission parameter processing devices.

[0229] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the computer program implements the following steps: a base station selects X SRS resource subsets from SRS resources; the base station determines Y transmission resource groups, where the Y transmission resource groups are used to transmit one or more uplink transmission coding blocks; the base station sends indication information of the X SRS resource subsets to a terminal. The X SRS resource subsets are used to determine transmission parameters for the Y transmission resource groups; and the base station configures corresponding transmission parameter indication information for each of the X SRS resource subsets and / or the Y transmission resource groups.

[0230] Figure 10 FIG. 1 is a flow chart of a sixth embodiment of a transmission parameter processing method according to the present invention. Figure 10 As shown, the following steps are included:

[0231] Step 1000: The terminal determines X SRS resource subsets from the SRS resources; where X is a natural number greater than or equal to 1.

[0232] Optionally, the transmission parameters corresponding to the SRS resource can be configured by the base station or determined by the terminal. The transmission parameters that can be determined by the terminal include any combination of the following: power, precoding / transmit beam, transmit antenna, transmit channel, etc. The parameters that can be determined by the base station include any combination of the following: time-frequency resources, power, precoding selection range, transmit beam direction range, etc.

[0233] Optionally, the X SRS resource subsets are used to determine data channel or control channel transmission parameters, wherein the data channel transmission parameters are determined according to the SRS transmission parameters; or the control channel transmission parameters are determined according to the SRS transmission parameters.

[0234] Optionally, determining X SRS resource subsets includes:

[0235] The terminal determines X SRS resource subsets according to the agreed division method of the SRS resource subsets;

[0236] Alternatively, the terminal determines X SRS resource subsets according to a division manner of the SRS resource subsets indicated by configuration signaling from the base station.

[0237] Step 1001: The terminal determines Y transmission resource groups and corresponding transmission resources; wherein, the Y transmission resource groups are used for transmission of one or more uplink transmission coding blocks.

[0238] Optionally, the Y transmission resource groups may be determined according to a pre-agreed agreement;

[0239] Optionally, the Y transmission resource groups may also be determined according to the base station configuration.

[0240] Step 1002: The terminal determines a correspondence between X SRS resource subsets and Y transmission resource subgroups.

[0241] Optionally, the terminal may determine it according to a pre-agreed agreement or base station configuration.

[0242] Step 1003: The terminal determines transmission parameters of Y transmission resource subgroups according to the X SRS resource subsets.

[0243] For example, the terminal determines corresponding transport layers / DMRS ports for X SRS resource subsets, such as resources or groups indicated by SRI / SGI.

[0244] Preferably, when X=2, Figure 11As shown, according to TRI1 associated with SRI1, the number of layers used is determined to be r1, mapped to layers 1...r1; the DMRS port is p1...(p1+r1); according to TRI2 associated with SRI2, the number of layers used is determined to be r2, mapped to layers [(p2-p1)+1]...[(p2-p1)+r1]; the DMRS port is p2...(p2+r1). The case where X>2 is similar and will not be repeated here.

[0245] The values ​​of p1 and p2, and the relationship between p1 and p2 can be agreed upon or configured by the base station. Preferably, in the agreed manner, it can be: p1 = p2 + r1, or p1 = p2.

[0246] Here, SRI is only a specific example of SRS resource subset division, and other resource subset division methods are similar.

[0247] For another example, the terminal determines the corresponding CB / CBG for each of X SRS resource subsets, such as the resource / group indicated by the SRI / SGI. Each resource / group can correspond to one or more CB / CBGs; the rules for determining the correspondence can be configured by the base station or pre-agreed. The same CBG can correspond to one or more layers associated with the resource / group.

[0248] For example, the terminal determines the corresponding transmission layer / DMRS ports, power, precoding, and CB / CBG configuration for Y transmission resource groups, for example, panel 1...panel Y, antenna 1...antenna Y, and transmit beam 1...transmit beam Y. The division method of other transmission resource groups is similar.

[0249] An embodiment of the present invention further provides a transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: determining X SRS resource subsets from SRS resources; wherein X is a natural number greater than or equal to 1; determining Y transmission resource groups and corresponding transmission resources; wherein Y is a natural number greater than or equal to 1; determining a correspondence between the X SRS resource subsets and the Y transmission resource subgroups; and determining transmission parameters for the Y transmission resource subgroups based on the X SRS resource subsets.

[0250] An embodiment of the present invention further provides a terminal, comprising any one of the above transmission parameter processing devices.

[0251] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the following steps are implemented: determining X SRS resource subsets from SRS resources; where X is a natural number greater than or equal to 1; determining Y transmission resource groups and corresponding transmission resources; where Y is a natural number greater than or equal to 1; determining a correspondence between the X SRS resource subsets and the Y transmission resource subgroups; and determining transmission parameters for the Y transmission resource subgroups based on the X SRS resource subsets.

[0252] pass Figure 7 and Figure 10 The transmission parameter processing method shown here splits the original N1+N2-dimensional codebook into two lower-dimensional codebooks for feedback. This allows the channels corresponding to the port group / resource in each codebook to have relatively typical characteristics, such as being from the same panel, from the same polarization direction, using the same RF beam, or using the same beam speed. This reduces the codebook dimension and significantly enhances the corresponding codebook characteristics. These characteristics can be effectively utilized to construct the codebook, improving quantization efficiency and achieving the goal of reducing PMI overhead while maintaining the same performance.

[0253] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A transmission parameter processing method, characterized in that: include: The base station selects X SRS resource subsets from the sounding reference signal SRS resources; The base station determines Y transmission resource groups, where the Y transmission resource groups are used for transmitting one or more uplink transmission coding blocks; The base station sends indication information of X SRS resource subsets to the terminal, where the X SRS resource subsets are used to determine transmission parameters of Y transmission resource groups; The base station configures corresponding transmission parameter indication information for each of the X SRS resource subsets and / or the Y transmission resource groups; Wherein, X is a natural number greater than or equal to 1; Y is a natural number greater than or equal to 1; The division manner of the Y transmission resource groups includes one or more combinations of the following: Divided according to the transport layer; Divide by antenna or antenna panel; Divided by transmission channel; Divide according to time-frequency resources; Divide according to the transmission beam resources.

2. The transmission parameter processing method according to claim 1, characterized in that: The X SRS resource subsets are used to determine data channel or control channel transmission parameters; The data channel determines its transmission parameters according to the transmission parameters of the SRS; Alternatively, the control channel determines its transmission parameters according to the transmission parameters of the SRS.

3. The transmission parameter processing method according to claim 2, characterized in that: The transmission parameters include any combination of the following parameters: precoding parameters, power parameters, and mapping indication parameters between ports and antennas.

4. The transmission parameter processing method according to claim 1, characterized in that: The method of selecting X SRS resource subsets from the SRS resources includes: Select according to the pre-agreed division method of the SRS resource subset; or, The base station determines a division method of the SRS resource subset and configures the SRS resource subset to the terminal; The base station may select the X SRS resource subsets according to the reception quality of the SRS.

5. The transmission parameter processing method according to claim 1, characterized in that: The indication information of the SRS resource subset is indicated by high-layer configuration and / or physical layer signaling.

6. The transmission parameter processing method according to claim 1, characterized in that: The value of Y is pre-agreed: Y=X; or, the value of Y is configured by the base station.

7. The transmission parameter processing method according to claim 1, characterized in that: The correspondence between the X SRS resource subsets and the Y transmission resource groups is pre-agreed or configured by the base station.

8. The transmission parameter processing method according to claim 1, characterized in that: The transmission parameter indication information includes one or more of: demodulation reference signal DMRS port allocation indication information and coding block / coding block group configuration information.

9. The transmission parameter processing method according to claim 8, characterized in that: The transmission parameter indication information further includes one or more of transmission layer number indication information and precoding indication information.

10. A transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: the transmission parameter processing method according to any one of claims 1 to 9.

11. A base station comprising the transmission parameter processing device according to claim 10.

12. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the transmission parameter processing method according to any one of claims 1 to 9.

13. A transmission parameter processing method, characterized in that: include: The terminal determines X SRS resource subsets from the sounding reference signal SRS resources; where X is a natural number greater than or equal to 1; The terminal determines Y transmission resource groups and corresponding transmission resources; wherein the Y transmission resource groups are used for transmission of one or more uplink transmission coding blocks, and Y is a natural number greater than or equal to 1; The terminal determines the correspondence between X SRS resource subsets and Y transmission resource subgroups; The terminal determines transmission parameters of Y transmission resource subgroups according to the X SRS resource subsets; The division manner of the Y transmission resource groups includes one or more combinations of the following: Divided according to the transport layer; Divide by antenna or antenna panel; Divided by transmission channel; Divide according to time-frequency resources; Divide according to the transmission beam resources.

14. The transmission parameter processing method according to claim 13, characterized in that: The X SRS resource subsets are used to determine data channel or control channel transmission parameters; The data channel determines its transmission parameters according to the transmission parameters of the SRS; or the control channel determines its transmission parameters according to the transmission parameters of the SRS.

15. The transmission parameter processing method according to claim 13, characterized in that: Determining X SRS resource subsets includes: The terminal determines the X SRS resource subsets according to an agreed division method of the SRS resource subsets; or, The terminal determines the X SRS resource subsets according to the SRS resource subset division manner indicated by the configuration signaling from the base station.

16. A transmission parameter processing device, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor: the transmission parameter processing method according to any one of claims 13 to 15.

17. A terminal comprising the transmission parameter processing device according to claim 16.

18. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the transmission parameter processing method according to any one of claims 13 to 15.

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