Uplink signal transmission method, device, communication node and storage medium

Abstract

The present application provides an uplink signal transmission method, device, communication node and storage medium. The method determines the transmission mechanism of the uplink signal according to uplink configuration information; and transmits the uplink signal on the target resource according to the transmission mechanism.

Description

Technical Field

[0001] The present application relates to a wireless communication network, for example, to an uplink signal transmission method, device, communication node and storage medium. Background Art

[0002] In a wireless communication network, a service node may configure one or more resources for a terminal so that the terminal can select an antenna and transmit an uplink signal, thereby obtaining comprehensive downlink channel information based on channel reciprocity. In a carrier aggregation (CA) or dual connectivity (DC) scenario, a terminal supports transmitting or receiving signals on multiple serving cells, but is limited by the number of uplink transmission resources and cannot reasonably allocate limited uplink transmission resources to different serving cells. In addition, when the number of serving cells that the terminal supports physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) transmission is less than the number of serving cells that support PDSCH or PDCCH reception, there is also a lack of effective mechanisms to ensure that uplink signals can be fully and effectively transmitted in complex situations such as different serving cells, different resources, and different numbers of antennas. The reliability of uplink signal transmission is low, resulting in the service node being unable to obtain comprehensive downlink channel information of all serving cells that support physical downlink shared channel (PDSCH) or physical downlink control channel (PDCCH) transmission. Summary of the invention

[0003] The present application provides an uplink signal transmission method, device, communication node and storage medium to improve the reliability of uplink signal transmission.

[0004] The present invention provides an uplink signal transmission method, including:

[0005] Determine a transmission mechanism for an uplink signal according to the uplink configuration information;

[0006] An uplink signal is transmitted on the target resource according to the transmission mechanism.

[0007] The embodiment of the present application also provides an uplink signal transmission device, including:

[0008] a mechanism determination module, configured to determine a transmission mechanism for an uplink signal according to the uplink configuration information;

[0009] The transmission module is configured to transmit an uplink signal on a target resource according to the transmission mechanism.

[0010] The present application also provides a communication node, including:

[0011] one or more processors;

[0012] A storage device for storing one or more programs;

[0013] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned uplink signal transmission method.

[0014] The embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the above-mentioned uplink signal transmission method is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A flowchart of an uplink signal transmission method provided by an embodiment;

[0016] Figure 2 A schematic diagram of a transmission mechanism in which an uplink transmission resource is allocated to each serving cell provided by an embodiment;

[0017] Figure 3 A schematic diagram of a transmission mechanism provided by an embodiment in which uplink transmission resources are allocated to a serving cell that has an uplink signal transmission requirement within a set time period;

[0018] Figure 4 A schematic diagram of a transmission mechanism provided by an embodiment when uplink transmission resources of a third serving cell are switched to a second serving cell;

[0019] Figure 5 A schematic diagram of a transmission mechanism provided by an embodiment when uplink transmission resources of a third serving cell are not switched to a second serving cell;

[0020] Figure 6 A schematic diagram of the structure of an uplink signal transmission device provided by an embodiment;

[0021] Figure 7 A schematic diagram of the hardware structure of a communication node provided by an embodiment. DETAILED DESCRIPTION

[0022] The present application is described below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily. It should also be noted that, for ease of description, only the parts related to the present application rather than all structures are shown in the accompanying drawings.

[0023] In a wireless communication network, a service node may configure one or more resources for a terminal so that the terminal can select an antenna and transmit an uplink signal. In a CA or DC scenario, a service node may also configure one or more service cells for a terminal. If the terminal supports transmitting or receiving signals on multiple service cells, but is limited by the number of uplink transmission resources, the limited uplink transmission resources cannot be reasonably allocated to different service cells. In addition, in the case of different formats of downlink control information (DCI) for scheduling uplink transmission and different port number information, and in the case where the number of service cells supporting PUSCH or PUCCH transmission by the terminal is less than the number of service cells supporting PDSCH or PDCCH reception, there is also a lack of effective mechanisms to ensure that uplink signals can be fully and effectively transmitted under complex circumstances with different uplink configuration information (for example, the service node configures one or more service cells for the terminal, configures different resources, and the number of uplink transmission resources supported by the terminal is limited). Therefore, the reliability of uplink signal transmission is low.

[0024] In an embodiment of the present application, an uplink signal transmission method is provided, which can improve the reliability of uplink signal transmission under different uplink configuration information, thereby fully utilizing limited uplink transmission resources and obtaining more comprehensive channel information. Figure 1 A flowchart of an uplink signal transmission method provided by an embodiment, such as Figure 1 As shown, the method provided in this embodiment includes step 110 and step 120.

[0025] In step 110, a transmission mechanism of an uplink signal is determined according to the uplink configuration information.

[0026] In this embodiment, the uplink configuration information can be used to reflect the service cells and different resources configured by the service node for the terminal, as well as the number of uplink transmission resources supported by the terminal, the allocation of uplink transmission resources between different service cells or resources, the DCI format for scheduling uplink transmission, the number of ports supported by uplink resources used as codebooks, etc. These uplink configuration information affect the transmission mechanism of uplink signals. The transmission mechanism may include how the terminal allocates uplink transmission resources between different service cells or resources, how to use different target resources or ports in different service cells to transmit uplink signals, and accordingly, it may also include which target resources of which service cells the service node receives uplink signals through, and which format of DCI is used to schedule uplink transmission, etc. According to the uplink configuration information, various situations of transmitting uplink signals can be fully considered, and the corresponding transmission mechanism can be determined.

[0027] In step 120, an uplink signal is transmitted on the target resource according to the transmission mechanism.

[0028] In this embodiment, in the case of different uplink configuration information, the transmission mechanism of the uplink signal adopted may also be different. The correspondence between the uplink configuration information and the transmission mechanism to be adopted can be semi-statically configured by the service node and indicated to the terminal, or it can be predefined by the system or protocol. On this basis, it can be ensured that for each service cell that needs to transmit an uplink signal, the transmission of the uplink signal can be completed using the target resource according to a certain transmission mechanism, and the terminal or service node can respectively realize the transmission and reception of the uplink signal according to the transmission mechanism. The target resource refers to the resource used to transmit the uplink signal in the service cell that needs to transmit the uplink signal, which is configured by the service node for the terminal.

[0029] The uplink signal transmission method of this embodiment determines the transmission mechanism of the uplink signal according to the uplink configuration information, and transmits the uplink signal on the configured target resource according to the transmission mechanism, so that the terminal or service node can transmit and receive the uplink signal, thereby improving the reliability of uplink signal transmission. On this basis, the terminal can transmit the uplink signal completely and comprehensively, and make full use of the limited uplink transmission resources, and then the service node can obtain comprehensive downlink channel information.

[0030] In one embodiment, the uplink configuration information includes at least one of the following: antenna configuration information, uplink transmission resource allocation information, DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used as codebooks.

[0031] In this embodiment, the uplink configuration information may include antenna configuration information, and the antenna configuration information reflects the signal transmission or reception capability of the terminal. For example, the antenna configuration information of the terminal may be expressed as xTyR, where xT indicates that the terminal can use x antennas to transmit uplink signals, and yR indicates that the terminal can use y antennas for downlink reception, and x may be less than or equal to y. When y is greater than x, the terminal may transmit uplink signals in an antenna selection manner, so the service node may obtain channel information from the service node to each receiving antenna of the terminal through channel reciprocity. The uplink configuration information may also include uplink transmission resource allocation information, such as the allocation information of the transmitting antenna on each service cell, the allocation of the radio frequency chain on each service cell, etc. The uplink transmission resources may be allocated to different service cells by the terminal, or may be allocated to the same service cell, and then switched when other service cells need to transmit uplink signals. The uplink configuration information may also include DCI format information, for example, the DCI format may be a first format (format 0_0) or a second format (non-format 0_0, such as format 0_1, format 0_2, etc.). The uplink configuration information may also be information about the number of ports supported by uplink resources used for a codebook. The number of ports supported by uplink resources used for a codebook may be 1 or greater than 1. The uplink resources used for a codebook may specifically be SRS resources or SRS resource sets used for a codebook.

[0032] In one embodiment, the uplink transmission resource allocation information includes at least one of the following: each service cell is allocated an uplink transmission resource; multiple service cells share one or more uplink transmission resources; the uplink transmission resources are allocated to service cells that have uplink signal transmission requirements within a set time period, and the service cells that have uplink signal transmission requirements are one or more.

[0033] In this embodiment, it may be necessary to transmit uplink signals on multiple service cells. When the uplink transmission resources supported by the terminal are limited, the terminal needs to allocate the uplink transmission resources to multiple service cells. Taking the case where the terminal supports two uplink transmission resources (RF chains) as an example, if the service node configures the terminal to transmit uplink signals on two or more service cells, the terminal can work in the following RF chain allocation situations: one RF chain is allocated to the first service cell, and the other RF chain is allocated to the second service cell; both RF chains are allocated to the same service cell; multiple service cells share one RF chain, or share two RF chains. Among them, if both RF chains are allocated to one service cell, then when the other service cell needs to send an uplink signal, all or part of the allocated RF chain needs to be switched to the other service cell, and this process has a certain switching delay.

[0034] The number of radio frequency chains supported by the terminal is limited, which can also be reflected in the maximum number of ports of uplink resources (such as SRS resources) supported by the terminal. Accordingly, taking the case where the terminal supports two SRS ports as an example, if the service node configures the terminal to transmit uplink signals on two or more service cells, the terminal can use one SRS port to send uplink signals on the first service cell and another SRS port to send uplink signals on another service cell; or, the terminal can use two SRS ports to send uplink signals on one service cell and not send uplink signals on other service cells; multiple service cells share one SRS port or two SRS ports.

[0035] In one embodiment, the serving cell includes at least one of the following: a cell supporting PUSCH or PUCCH transmission; a cell supporting SRS transmission; a cell supporting PDSCH or PDCCH reception.

[0036] In this embodiment, the service node may configure one or more service cells for the terminal. The configured service cells may be cells supporting PUSCH or PUCCH transmission, or cells supporting SRS transmission, or cells supporting PDSCH or PDCCH reception, or cells supporting PDSCH or PDCCH reception but not supporting PUSCH or PUCCH transmission.

[0037] In one embodiment, the transmission mechanism includes: for each service cell to which uplink transmission resources are allocated, the terminal uses the allocated uplink transmission resources to transmit uplink signals on target resources according to uplink configuration information; wherein the uplink configuration information includes at least one of the following: antenna configuration information, DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used for codebooks.

[0038] In this embodiment, for each service cell to which uplink transmission resources are allocated, the determined transmission mechanism may be: the terminal uses the allocated uplink transmission resources to transmit uplink signals on the target resources according to the antenna configuration information. For example, in the case of different xTyRs, the same or different uplink transmission resources and target resources may be used to transmit uplink signals. The determined transmission mechanism may also be: the terminal uses the allocated uplink transmission resources to transmit uplink signals on the target resources according to the DCI format information for scheduling uplink transmission. For example, for format 0_0 and non-format 0_0, the same or different uplink transmission resources and target resources may be used to transmit uplink signals. The determined transmission mechanism may also be: the terminal uses the allocated uplink transmission resources to transmit uplink signals on the target resources according to the number of ports supported by the uplink resources used for the codebook. For example, in the case where the number of ports supported by the uplink resources used for the codebook is 1 or greater than 1, the same or different uplink transmission resources and target resources may be used to transmit uplink signals.

[0039] In one embodiment, for each serving cell to which uplink transmission resources are allocated, the terminal transmits an uplink signal on a target resource using the allocated uplink transmission resources according to the uplink configuration information, including at least one of the following:

[0040] 1) For each service cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas. That is, the antenna configuration information is expressed as xTyR, and in the case of y>x, the terminal can use the same uplink transmission resources (e.g., radio frequency chains) to transmit uplink signals on different target resources.

[0041] 2) For each service cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas. That is, the antenna configuration information is expressed as xTyR, and when y>x, the terminal can use different uplink transmission resources (such as radio frequency chains) to transmit uplink signals on different target resources.

[0042] 3) For each service cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is less than or equal to the number of transmitting antennas. That is, the antenna configuration information is expressed as xTyR, and when y≤x, the terminal can use different uplink transmission resources (such as radio frequency chains) to transmit uplink signals on different target resources.

[0043] 4) For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes that the DCI format is format 0_0. That is, if the DCI format for scheduling uplink transmission on the serving cell is format 0_0, the terminal can use the same uplink transmission resources (e.g., RF chain) to transmit uplink signals on different target resources.

[0044] 5) For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes DCI format non-format 0_0. That is, if the DCI format for scheduling uplink transmission on the serving cell is non-format 0_0, the terminal can use different uplink transmission resources (e.g., RF chains) to transmit uplink signals on different target resources.

[0045] 6) For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of the codebook, and the information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of the codebook includes: the number of ports is 1. That is, on the serving cell, the number of ports supported by the SRS resources or SRS resource sets used for the codebook is 1, and the terminal can use the same uplink transmission resources (e.g., RF chain) to transmit uplink signals on different target resources.

[0046] 7) For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of the codebook, and the information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of the codebook includes: the number of ports is greater than or equal to 2. That is, on the serving cell, if the number of ports supported by the SRS resources or SRS resource sets used for the codebook is greater than or equal to 2, the terminal can use different uplink transmission resources (e.g., RF chains) to transmit uplink signals on different target resources.

[0047] Through the method of the above embodiment, in the complex situation of different uplink configuration information, the flexibility of the transmission mechanism is improved, the reliability of uplink signal transmission is further improved, and it is ensured that the service node can fully receive the uplink signal and obtain comprehensive downlink channel information.

[0048] The following describes a transmission mechanism by taking as an example a pair of transmission mechanisms (for each serving cell that allocates uplink transmission resources, the terminal uses the allocated uplink transmission resources to transmit uplink signals on target resources according to uplink configuration information).

[0049] Example 1

[0050] For a terminal, the antenna configuration information of the terminal on the first frequency band is expressed as 1T xR, where x is any value in {1, 2, 4, 8, 16, 32, 64, 128}. The service node configures one or more service cells for the terminal. The service node configures SRS resources or SRS resource sets for antenna selection on at least two service cells for the terminal. The at least two service cells include serving cell 1 (i.e., the first service cell) and serving cell 2 (i.e., the second service cell). Serving cell 1 is on the first frequency band, and serving cell 2 can be on the first frequency band or the second frequency band. The antenna configuration supported by the terminal on the second frequency band can be the same as or different from that of the first frequency band. The terminal supports two radio frequency chains. The terminal can determine how to allocate two radio frequency chains to serving cell 1 and serving cell 2 based on system pre-definition or semi-static configuration of the service node. The uplink transmission resource allocation information is, for example: the terminal uses radio frequency chain 1 to send SRS on serving cell 1, and uses radio frequency chain 2 to send SRS on serving cell 2.

[0051] Figure 2 FIG. 1 is a schematic diagram of a transmission mechanism in which an uplink transmission resource is allocated to each serving cell according to an embodiment. Figure 2 As shown, the number of receiving antennas (y=2) supported by the terminal on the second serving cell (serving cell 2) is greater than 1. Then, according to the uplink configuration information and the uplink transmission resource allocation information, the transmission mechanism can be determined as follows: for the first serving cell (serving cell 1), the terminal uses RF chain 1 to transmit an uplink signal (SRS); for serving cell 2, the terminal uses 1 RF chain (i.e., RF chain 2) allocated to serving cell 2, and uses different antennas in sequence (i.e., using different time domain resource units) to send uplink signals on SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 2. Accordingly, according to the transmission mechanism, the serving node can receive uplink signals on RF chain 1 for serving cell 1, and can receive uplink signals sent on SRS resources or SRS resource sets of different antennas in sequence for serving cell 2 through RF chain 2, thereby improving the reliability of uplink signal transmission and obtaining comprehensive downlink channel information.

[0052] Figure 3A schematic diagram of a transmission mechanism provided by an embodiment in which uplink transmission resources are allocated to a serving cell that has an uplink signal transmission demand within a set time period. In this embodiment, the RF chain is allocated by the terminal to the serving cell that has a transmission demand within the set time period. Figure 3 As shown, if only the SRS needs to be sent on the second serving cell (serving cell 2) within the set time period, the uplink transmission resource allocation information can be: the terminal allocates both RF chains to serving cell 2. According to the uplink configuration information and the uplink transmission resource allocation information, the transmission mechanism can be determined as follows: the terminal uses different RF chains on Serving cell 2 in sequence (i.e., using different time domain resource units), transmits SRS through different antennas on different SRS resources or SRS resource sets, and does not transmit uplink signals on serving cell 1 within the set time period. Correspondingly, according to the transmission mechanism, the serving node indicates that the uplink signal is not received within the set time period for the first serving cell (serving cell 1), and for Serving cell 2, the uplink signal can be received through different RF chains, different SRS resources or SRS resource sets, and different antennas within the set time period, thereby improving the reliability of uplink signal transmission and obtaining comprehensive downlink channel information.

[0053] If the terminal needs to send SRS on both serving cell 1 and serving cell 2 within the set time period, that is, both serving cell 1 and serving cell 2 have uplink signal transmission requirements within the set time period, the uplink transmission resource allocation information may be: the terminal allocates radio frequency chain 1 to serving cell 1 for sending SRS on serving cell 1, and allocates radio frequency chain 2 to serving cell 2 for sending SRS on serving cell 2. The transmission mechanism in this case is the same as Figure 2 As shown. If the number of receiving antennas supported by the terminal on a certain service cell is greater than or equal to 2, the transmission mechanism includes: the terminal uses one RF chain allocated to the service cell, and uses different antennas in turn (i.e., using different time domain resource units) to send SRS on the SRS resources or SRS resource sets corresponding to the different antennas configured for the service cell. Accordingly, according to the transmission mechanism, the service node can receive uplink signals through different antennas on different SRS resources or SRS resource sets through one RF chain within a set time period for a service cell that supports a number of receiving antennas greater than or equal to 2, thereby improving the reliability of uplink signal transmission and further obtaining comprehensive downlink channel information.

[0054] In one embodiment, the set time period includes one time unit or multiple consecutive time units; wherein the time unit includes at least one of the following: a radio frame, a subframe, a time slot (Slot), a mini time slot (Mini-Slot), and an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol.

[0055] In one embodiment, the transmission mechanism includes: the terminal releases all or part of the uplink transmission resources allocated to the first serving cell, and the released uplink transmission resources are used to transmit uplink signals in the second serving cell.

[0056] In this embodiment, the transmission mechanism includes: the terminal releases all or part of the uplink transmission resources allocated to the first service cell, and the released uplink transmission resources are used to transmit uplink signals in the second service cell. For example, in a CA or DC scenario, the service node can configure the terminal to send and receive signals on multiple service cells, and the service node will configure for each service cell whether to allow the terminal to transmit PUSCH or PUCCH on the service cell. On some of the service cells, the terminal may not support the transmission of PUSCH or PUCCH. In order to enable the service node to obtain the downlink channel information of all service cells based on channel reciprocity, it is necessary to configure the terminal to send SRS for antenna selection on all service cells, regardless of whether the transmission of PUSCH or PUCCH is supported on the service cell. For service cells that do not support PUSCH or PUCCH transmission, the terminal may not be allocated a radio frequency chain for uplink transmission on the service cell. In this case, the uplink transmission resources of the service cell that supports PUSCH or PUCCH transmission can be switched in whole or in part to the service cell that does not support PUSCH or PUCCH transmission.

[0057] For example, the service node can configure a source cell for a service cell that does not support PUSCH or PUCCH transmission through Radio Resource Control (RRC) signaling. On this basis, after the terminal completes the transmission of the uplink signal on the configured source cell, it can switch the radio frequency chain applied to the source cell to the target cell (i.e., the service cell that does not support PUSCH or PUCCH transmission), so that the target cell can send SRS. In this case, the source cell is the first service cell and the target cell is the second service cell.

[0058] In one embodiment, the first service cell includes at least one of the following: a source cell of the second service cell, the source cell of the second service cell is configured by a service node; a cell that is not the source cell of the second service cell; a cell that shares uplink transmission resources with the source cell of the second service cell; a cell that has a transmission demand within a set time period; and a cell that is configured with target resources for transmitting uplink signals.

[0059] In this embodiment, the transmission mechanism includes: releasing all or part of the uplink transmission resources of the source cell of the second service cell, releasing all or part of the uplink transmission resources of a cell that is not the source cell of the second service cell, releasing all or part of the uplink transmission resources of a cell that shares uplink transmission resources with the source cell of the second service cell, releasing all or part of the uplink transmission resources of a cell that has a transmission demand within a set time period, and / or releasing all or part of the uplink transmission resources of a cell that is configured as a target resource for transmitting uplink signals, and allocating the released uplink transmission resources to the second service cell for uplink signal transmission of the second service cell.

[0060] In one embodiment, the second service cell includes at least one of the following: a target cell configured as a source cell; a cell configured with target resources for transmitting uplink signals; a service cell that does not support PUSCH or PUCCH transmission; a cell whose antenna configuration information satisfies a first condition, wherein the first condition includes: the number of transmit antennas supported by the terminal in the second service cell is greater than or equal to 2; a cell whose antenna configuration information satisfies a second condition, wherein the second condition includes: the number of transmit antennas supported by the terminal in the second service cell is 1; a cell whose DCI format for scheduling uplink transmission is a first format, wherein the first format includes: format 0_0; a cell whose DCI format for scheduling uplink transmission is a second format, wherein the second format includes: a format other than format 0_0; a cell whose uplink resources used for codebooks support a first number of ports, wherein the first number is 1; a cell whose uplink resources used for codebooks support a second number of ports, wherein the second number is greater than or equal to 2.

[0061] In this embodiment, the transmission mechanism includes: the terminal releases all or part of the uplink transmission resources of the first service cell, and switches the released uplink transmission resources to the target cell configured as the source cell, switches to the cell configured as the target resource for transmitting uplink signals, switches to the service cell that does not support PUSCH or PUCCH transmission, switches to the cell whose number of transmit antennas supported by the terminal is greater than or equal to 2, switches to the cell whose number of transmit antennas supported by the terminal is 1, switches to the cell whose DCI format for uplink transmission scheduled on the second service cell is format 0_0, switches to the cell whose DCI format for uplink transmission scheduled on the second service cell is non-format 0_0, switches to the cell whose number of ports supported by uplink resources used for codebook is 1, and / or switches to the cell whose number of ports supported by uplink resources used for codebook is greater than 1.

[0062] In one embodiment, the transmission mechanism includes: the uplink transmission resources of the first service cell that are not released by the terminal are used to transmit uplink signals in the first service cell; or, the terminal switches part of the uplink resources of the first service cell to a third service cell and uses them to transmit uplink signals in the third service cell.

[0063] In this embodiment, the terminal can switch part of the uplink transmission resources of the first service cell to the second service cell for transmitting uplink signals in the second service cell; the remaining uplink transmission resources that have not been switched to the second service cell can continue to be retained in the first service cell for transmitting uplink signals in the first service cell, or can be switched to the third service cell for transmitting uplink signals in the third service cell.

[0064] Through the method of the above embodiment, in the complex situation of different uplink configuration information, the flexibility of uplink transmission resource allocation or switching is improved, the reliability of uplink signal transmission is further improved, and it is ensured that the service node can fully receive uplink signals and obtain comprehensive downlink channel information.

[0065] The transmission mechanism (the terminal releases all or part of the uplink transmission resources of the first serving cell and switches to the second serving cell) is described below through Example 2.

[0066] Example 2

[0067] For a terminal, the serving node configures three serving cells for the terminal, namely serving cell 1 (i.e., the first serving cell), serving cell 2 (i.e., the third serving cell), and serving cell 3 (i.e., the second serving cell). The serving node configures the terminal through RRC signaling to not support the transmission of PUSCH or PUCCH on serving cell 3, to support the transmission of PUSCH or PUCCH on serving cell 1, and to support or not support the transmission of PUSCH or PUCCH on serving cell 2. The serving node configures SRS resources or SRS resource sets for antenna selection on all three serving cells. The serving node configures SRS resources or resource sets for codebook purposes on serving cell 1. If the serving node configures the terminal to support the transmission of PUSCH or PUCCH on serving cell 2, the serving node also configures SRS resources or resource sets for codebook purposes on serving cell 2. For serving cell 3, the serving node configures its source cell as serving cell 1. In this case, serving cell 1 is the first serving cell, and serving cell 3 is the second serving cell. If the terminal wants to transmit an uplink signal on the SRS resource or SRS resource set of serving cell 3, the transmission mechanism includes: the terminal switches the uplink transmission resources allocated to serving cell 1 to serving cell 3 according to the uplink configuration information, wherein the uplink configuration information includes antenna configuration information, DCI format information for scheduling uplink transmission, and / or information on the number of ports supported by the uplink SRS resource or SRS resource set used for the codebook.

[0068] Case 1: For serving cell 1, the antenna configuration information that the terminal can support is 1T1R, and / or the number of ports supported by the SRS resource or SRS resource set used for codebook on serving cell 1 configured by the serving node to the terminal is 1; for serving cell 3, the antenna configuration that the terminal can support is 1TxR, x is a value in {1, 2, 4, 8, 16, 32, 64, 128}, and / or the number of ports supported by the SRS resource or SRS resource set used for codebook on serving cell 3 configured by the serving node to the terminal is 1. Based on this, it can be determined that the transmission mechanism includes: the terminal uses one radio frequency chain to complete uplink transmission on serving cell 1, and when the terminal is preparing to transmit uplink transmission on serving cell 3, the terminal switches one radio frequency chain originally used for uplink transmission of serving cell 1 to serving cell 3.

[0069] In addition, the terminal can further determine how to transmit uplink signals on serving cell 3 through system pre-defined or semi-static configuration of the serving node:

[0070] 1) If the terminal capability on serving cell 3 only supports one receiving antenna, and / or the number of ports supported by the SRS resource or SRS resource set for the codebook configured by the serving node to the terminal on serving cell 3 is 1 (i.e., x=1 in the antenna configuration information), it can be determined that the transmission mechanism includes: the terminal can use one radio frequency chain switched from serving cell 1 to serving cell 3, and send SRS on one antenna corresponding to the radio frequency chain, on the SRS resource or SRS resource set configured to serving cell 3. Correspondingly, according to the transmission mechanism, the serving node can receive SRS on the SRS resource or SRS resource set configured to serving cell 3 by using one antenna corresponding to one radio frequency chain switched from serving cell 1 to serving cell 3, so that after obtaining the downlink channel information of serving cell 1, the downlink channel information of serving cell 3 can also be obtained, thereby improving the reliability of uplink signal transmission.

[0071] 2) If the UE capability on serving cell 3 supports more than one receiving antenna, and / or the number of ports supported by the SRS resource or SRS resource set used for codebook configured by the serving node to the terminal on serving cell 3 is greater than 1 (i.e., x>1 in the antenna configuration information), then it can be determined that the transmission mechanism includes: the terminal uses one radio frequency chain switched from serving cell 1 to serving cell 3, and sequentially (i.e., uses different time domain resource units) uses different antennas, and the SRS resources or resource sets corresponding to different antennas configured to serving cell 3. Accordingly, according to the transmission mechanism, the serving node can receive SRS on the SRS resource or SRS resource set configured to serving cell 3 through one radio frequency chain switched from serving cell 1 to serving cell 3 through different antennas in sequence, so that after obtaining the downlink channel information of serving cell 1, it can also obtain comprehensive downlink channel information of serving cell 3, thereby improving the reliability of uplink signal transmission.

[0072] Case 2: If the antenna configuration information that the terminal can support on serving cell 1 is 1T x1R, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the terminal on serving cell 1 and used as a codebook is 1; the antenna configuration information that the terminal can support on serving cell 3 is 1T x2R, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the terminal on serving cell 3 and used as a codebook is 1, wherein x1 and x2 are both one of {2, 4, 8, 16, 32, 64, 128}, and x1 and x2 may be equal or different. Based on this, it can be determined that the transmission mechanism includes: the terminal uses two radio frequency chains on two SRS resources or SRS resource sets on serving cell 1 to send SRS; if the terminal also needs to send SRS on the SRS resource or SRS resource set of serving cell 3, the terminal switches all or part of the radio frequency chains used for sending uplink transmission on serving cell 1 to serving cell 3.

[0073] In addition, the terminal can further determine how to transmit uplink signals on serving cell 1 and serving cell 3 through system pre-defined or semi-static configuration of the serving node:

[0074] 1) The transmission mechanism may be: the terminal switches both RF chains originally used for uplink transmission of serving cell 1 to serving cell 3. The terminal uses different RF chains on serving cell 3 in sequence (i.e., using different time domain resource units), transmits SRS through different antennas on different SRS resources or SRS resource sets, and the terminal can no longer continue to transmit uplink transmission on serving cell 1. Accordingly, according to the transmission mechanism, the serving node may use 2 RF chains on serving cell 1 to receive SRS on 2 SRS resources or SRS resource sets, and may also switch from serving cell 1 to 2 RF chains of serving cell 3, and receive SRS through different antennas on different SRS resources or SRS resource sets in sequence, thereby improving the reliability of uplink signal transmission. After obtaining the downlink channel information of serving cell 1, the serving node may also obtain comprehensive downlink channel information of serving cell 3.

[0075] 2) The transmission mechanism may be: the terminal switches one of the RF chains originally used for uplink transmission of serving cell 1 to serving cell 3, and the other RF chain remains on serving cell 1. During the uplink transmission of serving cell 3, the terminal can only use one RF chain for uplink signal transmission on serving cell 1 and serving cell 3. In the process of the service node scheduling the terminal to send uplink PUSCH, PUCCH, SRS or PRACH on serving cell 1, only the default DCI (DCI format is format 0_0) or DCI format 0_1 ​​or format 0_2 scheduling with the number of associated SRS ports as 1 can be used, and the terminal can only support single-port transmission when sending the uplink transmission. For serving cell 3, the terminal uses one RF chain and uses different antennas in turn (i.e., uses different time domain resource units) to send SRS on the SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 3. Correspondingly, according to the transmission mechanism, the serving node can only use DCI format 0_0 to schedule uplink transmission, and can use two RF chains on serving cell 1 to receive SRS on two SRS resources or SRS resource sets. For serving cell 3, it can also use one RF chain switched from serving cell 1 to serving cell 3, and receive SRS through SRS resources or SRS resource sets of different antennas in turn, thereby improving the reliability of uplink signal transmission. After obtaining the downlink channel information of serving cell 1, it can also obtain comprehensive downlink channel information of serving cell 3.

[0076] 3) The transmission mechanism may be: the terminal switches one of the RF chains originally used for uplink transmission of serving cell 1 to serving cell 3, and switches the other RF chain to serving cell 2 for uplink transmission on serving cell 2. For serving cell 2, the terminal uses one RF chain and uses different antennas in sequence (i.e., uses different time domain resource units) to send SRS on SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 2. Correspondingly, according to the transmission mechanism, the serving node may use two RF chains on serving cell 1 to receive SRS on two SRS resources or SRS resource sets, and may also receive SRS on SRS resources or SRS resource sets configured for serving cell 2 through one RF chain switched from serving cell 1 to serving cell 2 through different antennas in sequence, thereby improving the reliability of uplink signal transmission, and after obtaining the downlink channel information of serving cell 1, it may also obtain comprehensive downlink channel information of serving cell 2.

[0077] Case 3: If the antenna configuration information supported by the terminal on serving cell 1 is 1T x1R, and / or the number of ports supported by the SRS resource or SRS resource set used for codebook configured by the serving node to the terminal on serving cell 1 is 1; the antenna configuration supported by the terminal on serving cell 3 is 2T x2R, and / or the number of ports supported by the SRS resource or SRS resource set used for codebook configured by the serving node to the terminal on serving cell 3 is greater than or equal to 2, wherein x1 is a value in {1, 2, 4, 8, 16, 32, 64, 128}, and x2 is a value in {2, 4, 8, 16, 32, 64, 128}, and x1 and x2 may be equal or different. If the terminal uses one RF chain on serving cell 1 to send SRS on one SRS resource or SRS resource set, the transmission mechanism includes: the terminal switches one RF chain originally used for uplink transmission of serving cell 1 to serving cell 3.

[0078] In addition, the terminal can further determine how to transmit uplink signals on serving cell 3 through system pre-defined or semi-static configuration of the serving node:

[0079] In this case, the transmission mechanism includes: the terminal uses a radio frequency chain switched from serving cell 1 to serving cell 3, and uses different antennas in sequence (i.e., uses different time domain resource units) to send SRS on SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 3. Correspondingly, according to the transmission mechanism, the serving node can receive SRS on the SRS resources or SRS resource sets configured for serving cell 3 through different antennas in sequence by switching from serving cell 1 to serving cell 3 through a radio frequency chain, thereby improving the reliability of uplink signal transmission, and after obtaining the downlink channel information of serving cell 1, it can also obtain comprehensive downlink channel information of serving cell 3.

[0080] Case 4: If the antenna configuration information that the terminal can support on serving cell 1 is 2T x1R, and / or the number of ports supported by the SRS resources or SRS resource sets for the purpose of the codebook configured by the serving node to the terminal on serving cell 1 is greater than or equal to 2; the antenna configuration that the terminal can support on serving cell 3 is 1T x2R, and / or the number of ports supported by the SRS resources or SRS resource sets for the purpose of the codebook configured by the serving node to the terminal on serving cell 3 is 1, x1 is a value in {2, 4, 8, 16, 32, 64, 128}, x2 is a value in {2, 4, 8, 16, 32, 64, 128}, and x1 and x2 may be equal or different. If the terminal uses two radio frequency chains on serving cell 1 to send SRS on two SRS resources or SRS resource sets, and the terminal needs to send SRS on the SRS resource or SRS resource set of serving cell 3, the transmission mechanism includes: the terminal switches all or part of the radio frequency chains applied to serving cell 1 for uplink transmission to serving cell 3 for SRS transmission, and / or switches part of the radio frequency chains applied to serving cell 1 for uplink transmission to serving cell 2 for uplink transmission.

[0081] In addition, the terminal can further determine how to transmit uplink signals on serving cell 1, serving cell 2, and serving cell 3 through system pre-defined or semi-static configuration of the serving node:

[0082] 1) The transmission mechanism includes: the terminal switches one of the RF chains originally used for uplink transmission of serving cell 1 to serving cell 3, and the other RF chain remains on serving cell 1. From then on, the terminal can only use one RF chain for uplink transmission on serving cell 1 and serving cell 3, and the terminal can only support single-port transmission for sending the uplink transmission. For serving cell 3, the terminal uses one RF chain and uses different antennas in turn (i.e., using different time domain resource units) to send SRS on SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 3. Correspondingly, according to the transmission mechanism, when scheduling the terminal to send uplink PUSCH or PUCCH or SRS or PRACH on serving cell 1, the serving node can only use (DCI format 0_0) or DCI format 0_1 ​​or format 0_2 scheduling with the number of associated SRS ports being 1. For serving cell 3, the serving node receives SRS on the SRS resource or SRS resource set configured for serving cell 3 through different antennas in sequence by switching a radio frequency chain from serving cell 1 to serving cell 3, thereby improving the reliability of uplink signal transmission. After obtaining the downlink channel information of serving cell 1, the serving node can also obtain comprehensive downlink channel information of serving cell 3.

[0083] 2) The transmission mechanism includes: the terminal switches one of the RF chains originally used for uplink transmission of serving cell 1 to serving cell 3, and switches the other RF chain to serving cell 2 for uplink transmission. For serving cell 2 or serving cell 3, the terminal uses one RF chain and uses different antennas in sequence (i.e., uses different time domain resource units) to send SRS on SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 2 or serving cell 3. Correspondingly, according to the transmission mechanism, when scheduling the terminal to send uplink PUSCH or PUCCH or SRS or PRACH on serving cell 1, the serving node can only use (DCI format 0_0) or DCI format 0_1 ​​or format 0_2 scheduling with the number of associated SRS ports being 1. For serving cell 2 or serving cell 3, the serving node receives SRS on the SRS resource or SRS resource set configured for serving cell 2 or serving cell 3 through different antennas in sequence by switching a radio frequency chain from serving cell 1 to serving cell 2 or serving cell 3, thereby improving the reliability of uplink signal transmission. After obtaining the downlink channel information of serving cell 1, the serving node can also obtain comprehensive downlink channel information of serving cell 2 or serving cell 3.

[0084] Case 5: If the antenna configuration information supported by the terminal on serving cell 1 is 2T x1R, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 1 is greater than or equal to 2; the antenna configuration supported by the terminal on serving cell 3 is 1T x2R, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 3 is 1, wherein x1 and x2 are both a value in {2, 4, 8, 16, 32, 64, 128}, and x1 and x2 may be equal or different. If the terminal uses two radio frequency chains to send uplink transmission on serving cell 1, the transmission mechanism includes: the terminal switches all or part of the radio frequency chains used for uplink transmission on serving cell 1 to serve cell 3 for SRS transmission.

[0085] In addition, the terminal can further determine how to transmit uplink signals on serving cell 1 and serving cell 3 through system pre-defined or semi-static configuration of the serving node:

[0086] 1) The transmission mechanism includes: the terminal switches one of the RF chains originally used for uplink transmission of serving cell 1 to serving cell 3, and the other RF chain remains on serving cell 1. From then on, the terminal can only use one RF chain for uplink transmission on serving cell 1 and serving cell 3. And the terminal can only support single-port transmission for sending the uplink transmission. For serving cell 3, the terminal uses one RF chain and uses different antennas in turn (that is, using different time domain resource units) to send SRS on the SRS resources or SRS resource sets corresponding to different antennas configured for serving cell 3. Accordingly, when the service node schedules the terminal to send uplink PUSCH or PUCCH or SRS or PRACH on serving cell 1, it can only use (DCI format 0_0) or DCI format 0_1 ​​or format 0_2 scheduling with the number of associated SRS ports being 1. In addition, for serving cell 3, the serving node receives SRS on the SRS resource or SRS resource set configured for serving cell 2 or serving cell 3 through different antennas in sequence by switching a radio frequency chain from serving cell 1 to serving cell 3, thereby improving the reliability of uplink signal transmission. After obtaining the downlink channel information of serving cell 1, the serving node can also obtain comprehensive downlink channel information of serving cell 3.

[0087] 2) The transmission mechanism includes: the terminal switches the two RF chains originally used for uplink transmission of serving cell 1 to serving cell 3. The terminal uses different RF chains on serving cell 3 in sequence (i.e., uses different time domain resource units), transmits SRS through different antennas on different SRS resources or SRS resource sets, and the terminal can no longer continue uplink transmission on serving cell 1. Correspondingly, for serving cell 3, the service node receives SRS on the SRS resources or SRS resource sets configured for serving cell 2 or serving cell 3 through different antennas by switching the two RF chains from serving cell 1 to serving cell 3, thereby improving the reliability of uplink signal transmission. After obtaining the downlink channel information of serving cell 1, it can also obtain comprehensive downlink channel information of serving cell 3.

[0088] In one embodiment, the transmission mechanism includes at least one of the following: the terminal switches the uplink transmission resources of the third service cell to the second service cell; the terminal determines whether to switch the uplink transmission resources of the third service cell to the second service cell based on the uplink configuration information of the first service cell; the terminal determines whether to switch the uplink transmission resources of the third service cell to the second service cell based on the uplink configuration information of the second service cell.

[0089] In one embodiment, the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the second serving cell, including at least one of the following:

[0090] 1) The uplink configuration information includes antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the terminal switches the uplink transmission resources of the third service cell to the second service cell. That is, the transmission mechanism includes: when the number of transmit antennas supported by the second service cell is greater than or equal to 2, the uplink transmission resources of the third service cell are switched to the second service cell.

[0091] 2) The uplink configuration information includes antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is 1, the uplink transmission resources of the third service cell are not switched to the second service cell. That is, the transmission mechanism includes: when the number of transmit antennas supported by the second service cell is equal to 1, the uplink transmission resources of the third service cell do not need to be switched to the second service cell.

[0092] 3) The uplink configuration information includes DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second service cell is non-format 0_0, the terminal switches the uplink transmission resources of the third service cell to the second service cell. That is, the transmission mechanism includes: when the DCI format for scheduling the uplink transmission of the second service cell is non-format 0_0, the terminal can switch the uplink transmission resources of the third service cell to the second service cell.

[0093] 4) The uplink configuration information includes DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second service cell is format 0_0, the uplink transmission resources of the third service cell are not switched to the second service cell. That is, the transmission mechanism includes: when the DCI format for scheduling the uplink transmission of the second service cell is format 0_0, the terminal does not need to switch the uplink transmission resources of the third service cell to the second service cell.

[0094] 5) The uplink configuration information includes information about the number of ports supported by the uplink resources used for the codebook, and when the number of ports supported by the uplink resources used for the codebook is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell. That is, the transmission mechanism includes: when the number of ports supported by the uplink resources used for the codebook of the second serving cell is greater than or equal to 2, the terminal can switch the uplink transmission resources of the third serving cell to the second serving cell.

[0095] 6) The uplink configuration information includes information about the number of ports supported by uplink resources used for codebooks, and when the number of ports supported by uplink resources used for codebooks is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell. That is, the transmission mechanism includes: when the number of ports supported by uplink resources used for codebooks in the second serving cell is equal to 1, the terminal does not need to switch the uplink transmission resources of the third serving cell to the second serving cell.

[0096] In one embodiment, the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the first serving cell, including at least one of the following:

[0097] 1) The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is equal to 1, the terminal switches the uplink transmission resources of the third service cell to the second service cell. That is, the transmission mechanism includes: when the number of transmit antennas supported by the first service cell is equal to 1, the uplink transmission resources of the third service cell are switched to the second service cell.

[0098] 2) The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the uplink transmission resources of the third service cell are not switched to the second service cell. That is, the transmission mechanism includes: when the number of transmit antennas supported by the first service cell is greater than or equal to 2, there is no need to switch the uplink transmission resources of the third service cell to the second service cell.

[0099] 3) The uplink configuration information is DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the first service cell is format 0_0, the terminal switches the uplink transmission resources of the third service cell to the second service cell. That is, the transmission mechanism includes: when the DCI format for scheduling uplink transmission of the first service cell is format 0_0, the terminal can switch the uplink transmission resources of the third service cell to the second service cell.

[0100] 4) The uplink configuration information is DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second service cell is non-format 0_0, the uplink transmission resources of the third service cell are not switched to the second service cell. That is, the transmission mechanism includes: when the DCI format for scheduling uplink transmission of the first service cell is non-format 0_0, the terminal does not need to switch the uplink transmission resources of the third service cell to the second service cell.

[0101] 5) The uplink configuration information is information about the number of ports supported by uplink resources used for the codebook, and when the number of ports supported by uplink resources used for the codebook is equal to 1, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell. That is, the transmission mechanism includes: if the number of ports supported by uplink resources used for the codebook of the first serving cell is greater than or equal to 2, the terminal can switch the uplink transmission resources of the third serving cell to the second serving cell.

[0102] 6) The uplink configuration information is information about the number of ports supported by uplink resources used for codebooks, and when the number of ports supported by uplink resources used for codebooks is greater than or equal to 2, the uplink transmission resources of the third serving cell are not switched to the second serving cell. That is, the transmission mechanism includes: when the number of ports supported by uplink resources used for codebooks in the first serving cell is greater than or equal to 2, the terminal does not need to switch the uplink transmission resources of the third serving cell to the second serving cell.

[0103] In one embodiment, the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the third serving cell, including at least one of the following:

[0104] 1) The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the terminal switches the uplink transmission resources of the third service cell to the second service cell. That is, the transmission mechanism includes: when the number of transmit antennas supported by the third service cell is greater than or equal to 2, the uplink transmission resources of the third service cell are switched to the second service cell.

[0105] 2) The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is equal to 1, the uplink transmission resources of the third service cell are not switched to the second service cell. That is, the transmission mechanism includes: when the number of transmit antennas supported by the third service cell is equal to 1, there is no need to switch the uplink transmission resources of the third service cell to the second service cell.

[0106] 3) The uplink configuration information is DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the third service cell is non-format 0_0, the terminal switches the uplink transmission resources of the third service cell to the second service cell. That is, the transmission mechanism includes: when the DCI format for scheduling uplink transmission of the third service cell is non-format 0_0, the terminal can switch the uplink transmission resources of the third service cell to the second service cell.

[0107] 4) The uplink configuration information is DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the third service cell is format 0_0, the uplink transmission resources of the third service cell are not switched to the second service cell. That is, the transmission mechanism includes: when the DCI format for scheduling uplink transmission of the third service cell is format 0_0, the terminal does not need to switch the uplink transmission resources of the third service cell to the second service cell.

[0108] 5) The uplink configuration information is information about the number of ports supported by uplink resources used for codebooks, and when the number of ports supported by uplink resources used for codebooks is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell. That is, the transmission mechanism includes: when the number of ports supported by uplink resources used for codebooks in the third serving cell is greater than or equal to 2, the terminal may switch the uplink transmission resources of the third serving cell to the second serving cell.

[0109] 6) The uplink configuration information is information about the number of ports supported by uplink resources for the purpose of the codebook, and when the number of ports supported by uplink resources for the purpose of the codebook is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell. That is, the transmission mechanism includes: when the number of ports supported by uplink resources for the purpose of the codebook of the third serving cell is equal to 1, the terminal does not need to switch the uplink transmission resources of the third serving cell to the second serving cell.

[0110] Through the above method, in the complex situation of different uplink configuration information, the flexibility of uplink transmission resource allocation or switching is improved, the reliability of uplink signal transmission is further improved, and it is ensured that the service node can fully receive uplink signals and obtain comprehensive downlink channel information.

[0111] The following describes three pairs of transmission mechanisms (determining by the terminal whether to switch the uplink transmission resources of the third serving cell to the second serving cell).

[0112] Example 3

[0113] According to the configuration of the serving node, the terminal supports serving cell 1 (i.e., the first serving cell), serving cell 2 (i.e., the third serving cell), and serving cell 3 (i.e., the second serving cell). The serving node configures the terminal through RRC signaling to not support the transmission of PUSCH or PUCCH on serving cell 3, to support the transmission of PUSCH or PUCCH on serving cell 1, and to support the transmission of PUSCH or PUCCH on serving cell 2, or not to support the transmission of PUSCH or PUCCH. The terminal shall send SRS for antenna selection on serving cell 1, serving cell 2, and serving cell 3. The serving node configures SRS resources or SRS resource sets for the three serving cells to send SRS. The serving node configures SRS resources or SRS resource sets for the purpose of codebook on serving cell 1. If the serving node configures the terminal to support the transmission of PUSCH or PUCCH on serving cell 2, the serving node also configures SRS resources or SRS resource sets for the purpose of codebook on serving cell 2. For serving cell 3, the serving node configures its source cell as serving cell 1. In this case, the transmission mechanism may include: after the terminal sends the SRS on serving cell 1, the RF chain of serving cell 1 is switched to serving cell 3. On this basis, the transmission mechanism may also include: the terminal determines whether it is necessary to disconnect the RF chain applied to serving cell 2 and switch it to serving cell 3 according to the uplink configuration information of the second serving cell. The transmission mechanism may also include: the terminal determines whether it is necessary to disconnect the RF chain applied to serving cell 2 and switch it to serving cell 3 according to the uplink configuration information of the first serving cell. The transmission mechanism may also include: the terminal determines whether it is necessary to disconnect the RF chain applied to serving cell 2 and switch it to serving cell 3 according to the uplink configuration information of the third serving cell. The uplink configuration information includes antenna configuration information, DCI format information for scheduling uplink transmission, and / or information on the number of ports supported by uplink resources used as codebooks.

[0114] In this example, for the transmission mechanism in which the terminal determines whether to disconnect the radio frequency chain applied to serving cell 2 and switch to serving cell 3 according to the uplink configuration information of the second serving cell, the terminal can further determine how to transmit the uplink signal on serving cell 3 through system pre-definition or semi-static configuration of the serving node:

[0115] 1) The transmission mechanism includes: the terminal determines whether to disconnect the RF chain of serving cell 2 and switch to serving cell 3 according to the antenna configuration information on serving cell 3 and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 3. If the antenna configuration information of the terminal on serving cell 3 is 2TxR, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 3 is greater than or equal to 2, x can be any value in {1, 2, 4, 8, 16, 32, 64, 128}. In the case that the terminal needs to send SRS on the SRS resource or SRS resource set of serving cell 3, the transmission mechanism includes: the terminal disconnects the RF chains on serving cell 1 and serving cell 2, and switches the RF chains on serving cell 1 and serving cell 2 to serving cell 3. That is, the terminal not only needs to switch the radio frequency chain on the source cell to serving cell 3, but also needs to switch the radio frequency chain on other serving cells that support PUSCH or PUCCH transmission and / or support SRS transmission (i.e., serving cell 2 in this example, the third serving cell) to serving cell 3. On this basis, the terminal cannot send uplink transmissions on serving cell 1 and serving cell 2. Correspondingly, for serving cell 3, the serving node can use the radio frequency chain switched from serving cell 1 and serving cell 2 to serving cell 3 to receive uplink signals according to the transmission mechanism.

[0116] Figure 4 FIG. 1 is a schematic diagram of a transmission mechanism provided by an embodiment when the uplink transmission resources of the third serving cell are switched to the second serving cell. Figure 4As shown, for serving cell 3 (i.e., the second serving cell), the terminal can use two RF chains switched from serving cell 1 and serving cell 2 to serving cell 3, respectively, on two antennas, use corresponding SRS resources or SRS resource sets to send SRS, and can use the same or different time domain units.

[0117] 2) The transmission mechanism includes: the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the antenna configuration information on the serving cell 3. For example, the service node configures the SRS resources or the number of ports supported by the SRS resource set for the purpose of the codebook on the serving cell 3 to the terminal. If the antenna capability of the terminal on the serving cell 3 is 1TxR, and / or the number of ports supported by the SRS resources or the SRS resource set for the purpose of the codebook on the serving cell 3 configured by the service node to the terminal is 1, x can be any value in {1, 2, 4, 8, 16, 32, 64, 128}. Then when the terminal needs to send SRS on the SRS resource or SRS resource set of the serving cell 3, the transmission mechanism includes: the terminal disconnects the radio frequency chain on the serving cell 1, and switches the radio frequency chain originally used for uplink transmission of the serving cell 1 to the serving cell 3, for sending SRS on the serving cell 3, without disconnecting the radio frequency chain of the serving cell 2 or switching it to the serving cell 3. Correspondingly, for serving cell 3, the serving node can use the radio frequency link switched from serving cell 1 to serving cell 3 to receive the uplink signal according to the transmission mechanism.

[0118] Figure 5 FIG. 1 is a schematic diagram of a transmission mechanism provided by an embodiment when the uplink transmission resources of the third serving cell are not switched to the second serving cell. Figure 5As shown, the terminal does not need to disconnect the radio frequency chain on other serving cells that support PUSCH / PUCCH transmission and / or support SRS transmission (i.e., serving cell 2 in this embodiment, the third serving cell). On this basis, the terminal cannot send uplink transmission on serving cell 1, and can continue to send uplink transmission on serving cell 2. If the antenna capability on serving cell 3 is 1T2R, that is, x is equal to 2, then the terminal uses 1 radio frequency chain to transmit SRS in different time domain units or different SRS resources or different SRS resource sets in sequence (i.e., using different time domain resource units) using different antennas.

[0119] 3) The transmission mechanism includes: regardless of the antenna configuration information of the terminal on serving cell 3 or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the terminal on serving cell 3 for the purpose of the codebook, the terminal disconnects the radio frequency chains applied to serving cell 1 and serving cell 2, so that both radio frequency chains can be applied to the SRS transmission of serving cell 3. Correspondingly, for serving cell 3, the serving node can use the radio frequency chain switched from serving cell 1 and serving cell 2 to serving cell 3 to receive uplink signals according to the transmission mechanism.

[0120] In this example, for the transmission mechanism in which the terminal determines whether to disconnect the radio frequency chain applied to serving cell 2 and switch to serving cell 3 according to the uplink configuration information of the first serving cell, the terminal can further determine how to transmit the uplink signal on serving cell 3 through system pre-definition or semi-static configuration of the serving node:

[0121] 1) The transmission mechanism includes: the terminal determines whether to disconnect the RF chain of serving cell 2 and switch to serving cell 3 according to the antenna configuration information on serving cell 1 and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 1 to the terminal. If the antenna configuration information of the terminal on serving cell 1 is 2TxR, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 1 to the terminal is greater than or equal to 2, x can be any value in {1, 2, 4, 8, 16, 32, 64, 128}. In the case where the terminal needs to send SRS on the SRS resource or SRS resource set of serving cell 3, the transmission mechanism includes: the terminal does not need to disconnect the RF chain on serving cell 2, and does not need to switch the RF chain on serving cell 2 to serving cell 3. Correspondingly, for serving cell 3, the serving node can use the radio frequency link switched from serving cell 1 to serving cell 3 to receive the uplink signal according to the transmission mechanism.

[0122] 2) The transmission mechanism includes: the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the antenna configuration information on serving cell 1. For example, the service node configures the SRS resources for the purpose of the codebook or the number of ports supported by the SRS resource set on serving cell 1 to the terminal. If the antenna capability of the terminal on serving cell 1 is 1TxR, and / or the number of ports supported by the SRS resources for the purpose of the codebook or the SRS resource set configured by the service node on serving cell 1 to the terminal is 1, x can be any value in {1, 2, 4, 8, 16, 32, 64, 128}. When the terminal needs to send SRS on the SRS resources or SRS resource set of serving cell 3, the transmission mechanism includes: the terminal disconnects the RF chains on serving cell 1 and serving cell 2, and switches the RF chains on serving cell 1 and serving cell 2 to serving cell 3. That is, the terminal not only needs to switch the radio frequency chain on the source cell to serving cell 3, but also needs to switch the radio frequency chain on other serving cells that support PUSCH or PUCCH transmission and / or support SRS transmission (i.e., serving cell 2, the third serving cell in this example) to serving cell 3. On this basis, the terminal cannot send uplink transmissions on serving cell 1 and serving cell 2. Correspondingly, for serving cell 3, the serving node can use the radio frequency chain switched from serving cell 1 and serving cell 2 to serving cell 3 to receive uplink signals according to the transmission mechanism.

[0123] 3) The transmission mechanism includes: regardless of the antenna configuration information of the terminal on serving cell 1 or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the terminal on serving cell 1 for the purpose of the codebook, the terminal disconnects the radio frequency chains applied to serving cell 1 and serving cell 2, so that both radio frequency chains can be applied to the SRS transmission of serving cell 3. Correspondingly, for serving cell 3, the serving node can use the radio frequency chain switched from serving cell 1 and serving cell 2 to serving cell 3 to receive uplink signals according to the transmission mechanism.

[0124] In this example, for the transmission mechanism in which the terminal determines whether to disconnect the radio frequency chain applied to serving cell 2 and switch to serving cell 3 according to the uplink configuration information of the third serving cell, the terminal can further determine how to transmit the uplink signal on serving cell 3 through system pre-definition or semi-static configuration of the serving node:

[0125] 1) The transmission mechanism includes: the terminal determines whether to disconnect the RF chain of serving cell 2 and switch to serving cell 3 according to the antenna configuration information on serving cell 2 and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 2. If the antenna configuration information of the terminal on serving cell 2 is 2TxR, and / or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the purpose of codebook on serving cell 2 is greater than or equal to 2, x can be any value in {1, 2, 4, 8, 16, 32, 64, 128}. In the case where the terminal needs to send SRS on the SRS resource or SRS resource set of serving cell 3, the transmission mechanism includes: the terminal disconnects the RF chains on serving cell 1 and serving cell 2, and switches the RF chains on serving cell 1 and serving cell 2 to serving cell 3. That is, the terminal not only needs to switch the radio frequency chain on the source cell to serving cell 3, but also needs to switch the radio frequency chain on other serving cells that support PUSCH or PUCCH transmission and / or support SRS transmission (i.e., serving cell 2 in this example, the third serving cell) to serving cell 3. On this basis, the terminal cannot send uplink transmissions on serving cell 1 and serving cell 2. Correspondingly, for serving cell 3, the serving node can use the radio frequency chain switched from serving cell 1 and serving cell 2 to serving cell 3 to receive uplink signals according to the transmission mechanism.

[0126] 2) The transmission mechanism includes: the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the antenna configuration information on the serving cell 2. For example, the service node configures the SRS resources or the number of ports supported by the SRS resource set for the purpose of the codebook on the serving cell 2 to the terminal. If the antenna capability of the terminal on the serving cell 2 is 1TxR, and / or the number of ports supported by the SRS resources or the SRS resource set for the purpose of the codebook on the serving cell 2 configured by the service node to the terminal is 1, x can be any value in {1, 2, 4, 8, 16, 32, 64, 128}. Then when the terminal needs to send SRS on the SRS resource or SRS resource set of the serving cell 3, the transmission mechanism includes: the terminal disconnects the radio frequency chain on the serving cell 1, and switches the radio frequency chain originally used for the uplink transmission of the serving cell 1 to the serving cell 3, for sending SRS on the serving cell 3, without disconnecting the radio frequency chain of the serving cell 2 or switching it to the serving cell 3. Correspondingly, for serving cell 3, the serving node can use the radio frequency link switched from serving cell 1 to serving cell 3 to receive the uplink signal according to the transmission mechanism.

[0127] 3) The transmission mechanism includes: regardless of the antenna configuration information of the terminal on serving cell 2 or the number of ports supported by the SRS resource or SRS resource set configured by the serving node for the terminal on serving cell 2 for the purpose of the codebook, the terminal disconnects the radio frequency chains applied to serving cell 1 and serving cell 2, so that both radio frequency chains can be applied to the SRS transmission of serving cell 3. Correspondingly, for serving cell 3, the serving node can use the radio frequency chain switched from serving cell 1 and serving cell 2 to serving cell 3 to receive uplink signals according to the transmission mechanism.

[0128] The method of the above embodiment can improve the flexibility of uplink transmission resource allocation or switching under complex circumstances of different uplink configuration information, further improve the reliability of uplink signal transmission, and ensure that the service node can fully receive uplink signals and obtain comprehensive downlink channel information.

[0129] In one embodiment, it further includes:

[0130] Step 101: Transmit scheduling information of uplink signals;

[0131] When the terminal supports two uplink transmission resources and meets the set conditions, the scheduling information includes DCI of format 0_0, DCI of format 0_1 ​​with the number of associated SRS ports being 1, or DCI of format 0_2 with the number of associated SRS ports being 1.

[0132] In this embodiment, the terminal supports uplink transmission on multiple carriers, for example, the serving node configures the terminal to perform uplink transmission on at least serving cell 1 and serving cell 2. When the terminal capability supports only two RF chains and meets the set conditions, the serving node schedules the PDCCH DCI for PUSCH or PUCCH or SRS or PRACH transmission of the terminal on serving cell 1 and serving cell 2, which is a DCI of format 0_0, a DCI of format 0_1 ​​with the number of associated SRS ports being 1, or a DCI of format 0_2 with the number of associated SRS ports being 1.

[0133] In one embodiment, the setting condition includes at least one of the following: the number of transmit antennas supported by the terminal on the first serving cell is greater than or equal to 2; and both uplink transmission resources are allocated to the same serving cell.

[0134] In this embodiment, for example, the service node configures the terminal to perform uplink transmission on at least serving cell 1 and serving cell 2. In this case, the terminal does not expect the service node to schedule PUSCH or PUCCH or SRS or PRACH transmission sent on serving cell 2 in a non fallback DCI format (such as DCI format 0_1, DCI format 0_2); the terminal does not expect the service node to schedule uplink transmission greater than 1 port sent on serving cell 2 with PDCCH DCI.

[0135] Through the method of the above embodiment, in the complex situation of different uplink configuration information, the flexibility of uplink scheduling is improved, the reliability of uplink signal transmission is further improved, and it is ensured that the service node can fully receive uplink signals and obtain comprehensive downlink channel information.

[0136] In one embodiment, the transmission mechanism is predefined or semi-statically configured by the service node.

[0137] In one embodiment, the uplink transmission resources include at least one of the following: a radio frequency chain, a transmission antenna.

[0138] In one embodiment, the target resource includes at least one of the following:

[0139] SRS resource, SRS resource set, antenna ports supported by SRS resource or SRS resource set.

[0140] In one embodiment, the SRS resource or SRS resource set is used for antenna selection.

[0141] In this embodiment, the purpose of the SRS resource or SRS resource set is antenna selection, so that the terminal can transmit an uplink signal by antenna selection so that the service node can obtain comprehensive channel information. In some embodiments, the purpose of the SRS resource or SRS resource set can also be non-antenna selection, for example, the SRS resource or SRS resource set used for codebook can be used to determine whether it is necessary to switch the uplink transmission resources of the third service cell to the second service cell.

[0142] In one embodiment, the uplink signal includes at least one of the following: SRS, PUSCH, PUCCH, and PRACH.

[0143] Through the method of the above embodiment, in the complex situation of different uplink configuration information, different types of uplink transmission resources, target resources and configuration methods of transmission mechanisms are considered to further improve the reliability and flexibility of uplink signal transmission, and ensure that the service node can fully receive uplink signals and obtain comprehensive downlink channel information.

[0144] The embodiment of the present application also provides an uplink signal transmission device. Figure 6 FIG. 1 is a schematic diagram of the structure of an uplink signal transmission device provided by an embodiment. Figure 6 As shown, the uplink signal transmission device includes: a mechanism determination module 210 and a transmission module 220.

[0145] A mechanism determination module 210, configured to determine a transmission mechanism for an uplink signal according to the uplink configuration information;

[0146] The transmission module 220 is configured to transmit an uplink signal on a target resource according to the transmission mechanism.

[0147] The uplink signal transmission device of this embodiment determines the transmission mechanism of the uplink signal according to the uplink configuration information, and transmits the uplink signal on the configured target resource according to the transmission mechanism, so that the terminal or service node can send and receive the uplink signal, thereby improving the reliability of uplink signal transmission. On this basis, the terminal can send the uplink signal completely and comprehensively, and the service node can completely obtain the downlink channel information. On this basis, the terminal can send the uplink signal completely and comprehensively, and the service node can completely obtain the downlink channel information.

[0148] In one embodiment, the uplink configuration information includes at least one of the following: antenna configuration information, uplink transmission resource allocation information, DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used as codebooks.

[0149] In one embodiment, the uplink transmission resource allocation information includes:

[0150] At least one of the following:

[0151] Each serving cell is allocated an uplink transmission resource; multiple serving cells share one or more uplink transmission resources;

[0152] The uplink transmission resources are allocated to the service cells having the uplink signal transmission demand within the set time period, and the service cells having the uplink signal transmission demand may be one or more.

[0153] In one embodiment, the serving cell includes at least one of the following: a cell supporting PUSCH or PUCCH transmission; a cell supporting SRS transmission; a cell supporting PDSCH or PDCCH reception.

[0154] In one embodiment, the transmission mechanism includes:

[0155] For each serving cell to which uplink transmission resources are allocated, the terminal uses the allocated uplink transmission resources to transmit uplink signals on target resources according to the uplink configuration information;

[0156] The uplink configuration information includes at least one of the following: antenna configuration information, DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used for codebooks.

[0157] In one embodiment, for each serving cell to which uplink transmission resources are allocated, the terminal transmits an uplink signal on a target resource using the allocated uplink transmission resources according to the uplink configuration information, including at least one of the following:

[0158] For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas;

[0159] For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas;

[0160] For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is less than or equal to the number of transmitting antennas;

[0161] For each serving cell that allocates uplink transmission resources, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes that the DCI format is format 0_0;

[0162] For each serving cell that allocates uplink transmission resources, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes DCI format non-format 0_0;

[0163] For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of a codebook, and the information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of a codebook includes: the number of ports is 1;

[0164] For each service cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, respectively, wherein the uplink configuration information includes information on the number of ports supported by uplink resources configured on the service cell for the purpose of a codebook, and the information on the number of ports supported by uplink resources configured on the service cell for the purpose of a codebook includes: the number of ports is greater than or equal to 2.

[0165] In one embodiment, the set time period includes one time unit or multiple consecutive time units;

[0166] The time unit includes at least one of the following: a frame, a subframe, a time slot, a mini time slot, and an orthogonal frequency division multiplexing OFDM symbol.

[0167] In one embodiment, the transmission mechanism includes:

[0168] The terminal releases all or part of the uplink transmission resources allocated to the first serving cell, and the released uplink transmission resources are used to transmit uplink signals in the second serving cell.

[0169] In one embodiment, the first serving cell includes at least one of the following:

[0170] a source cell of the second serving cell, wherein the source cell of the second serving cell is configured by a serving node;

[0171] a cell that is not a source cell of the second serving cell;

[0172] a cell that shares uplink transmission resources with the source cell of the second serving cell;

[0173] cells that have transmission requirements within the set time period;

[0174] The cell that is configured with target resources for transmitting uplink signals.

[0175] In one embodiment, the second serving cell includes at least one of the following:

[0176] The target cell configured as the source cell;

[0177] A cell configured with target resources for transmitting uplink signals;

[0178] Serving cells that do not support PUSCH or PUCCH transmission;

[0179] A cell whose antenna configuration information satisfies a first condition, wherein the first condition includes: the number of transmit antennas supported by the terminal in the second serving cell is greater than or equal to 2;

[0180] A cell whose antenna configuration information satisfies a second condition, wherein the second condition includes: the number of transmit antennas supported by the terminal in the second serving cell is 1;

[0181] A cell in which the DCI format for scheduling uplink transmission is a first format, wherein the first format includes: format 0_0;

[0182] A cell in which the DCI format for scheduling uplink transmission is a second format, wherein the second format includes: a format other than format 0_0;

[0183] A cell in which the number of ports supported by uplink resources used for a codebook is a first number, wherein the first number is 1;

[0184] The uplink resources used for the codebook support a second number of cells, where the second number is greater than or equal to 2.

[0185] In one embodiment, the DCI format for scheduling uplink transmission on the second serving cell is a first format, wherein the first format includes: format 0_0;

[0186] The DCI format for scheduling uplink transmission on the second serving cell is a second format, wherein the second format includes: a format other than format 0_0;

[0187] The number of ports supported by the uplink resources used for the codebook configured on the second serving cell is a first number, where the first number is 1;

[0188] The number of ports supported by the uplink resources used for codebook configured on the second serving cell is a second number, where the second number is greater than or equal to 2.

[0189] In one embodiment, the transmission mechanism includes: the uplink transmission resources of the first service cell that are not released by the terminal are used to transmit uplink signals in the first service cell; or, the terminal switches part of the uplink resources of the first service cell to a third service cell and uses them to transmit uplink signals in the third service cell.

[0190] In one embodiment, the transmission mechanism includes

[0191] At least one of the following:

[0192] The terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0193] The terminal determines, according to the uplink configuration information of the first serving cell, whether to switch the uplink transmission resources of the third serving cell to the second serving cell;

[0194] The terminal determines, according to the uplink configuration information of the second serving cell, whether to switch the uplink transmission resources of the third serving cell to the second serving cell;

[0195] The terminal determines whether to switch the uplink transmission resources of the third service cell to the second service cell according to the uplink configuration information of the third service cell.

[0196] In one embodiment, the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the second serving cell, including at least one of the following:

[0197] The uplink configuration information includes antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0198] The uplink configuration information includes antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell;

[0199] The uplink configuration information includes DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second serving cell is non-format 0_0, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0200] The uplink configuration information includes DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second serving cell is format 0_0, the uplink transmission resources of the third serving cell are not switched to the second serving cell;

[0201] The uplink configuration information includes information about the number of ports supported by uplink resources used for a codebook, and when the number of ports supported by uplink resources used for a codebook is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0202] The uplink configuration information includes information about the number of ports supported by uplink resources used for codebooks. When the number of ports supported by uplink resources used for codebooks is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell.

[0203] In one embodiment, the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the first serving cell, including at least one of the following:

[0204] The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is equal to 1, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0205] The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the uplink transmission resources of the third serving cell are not switched to the second serving cell;

[0206] The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the first serving cell is format 0_0, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0207] The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the second serving cell is non-format 0_0, the uplink transmission resources of the third serving cell are not switched to the second serving cell;

[0208] The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook, and when the number of ports supported by uplink resources used for a codebook is equal to 1, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0209] The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook. When the number of ports supported by uplink resources used for a codebook is greater than or equal to 2, the uplink transmission resources of the third serving cell are not switched to the second serving cell.

[0210] In one embodiment, the terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the third serving cell, including at least one of the following:

[0211] The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0212] The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell;

[0213] The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the third serving cell is non-format 0_0, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0214] The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the third serving cell is format 0_0, the uplink transmission resources of the third serving cell are not switched to the second serving cell;

[0215] The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook, and when the number of ports supported by uplink resources used for a codebook is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell;

[0216] The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook. When the number of ports supported by uplink resources used for a codebook is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell.

[0217] In one embodiment, it further includes:

[0218] A scheduling information transmission module, configured to: transmit scheduling information of an uplink signal;

[0219] When the terminal supports two uplink transmission resources and meets the set conditions, the scheduling information includes DCI of format 0_0, DCI of format 0_1 ​​with the number of associated SRS ports being 1, or DCI of format 0_2 with the number of associated SRS ports being 1.

[0220] In one embodiment, the setting condition includes at least one of the following:

[0221] The number of transmit antennas supported by the terminal on the first serving cell is greater than or equal to 2;

[0222] Both uplink transmission resources are allocated to the same serving cell.

[0223] In one embodiment, the transmission mechanism is predefined or semi-statically configured by the service node.

[0224] In one embodiment, the uplink transmission resources include at least one of the following: a radio frequency chain, a transmission antenna.

[0225] In one embodiment, the target resource includes at least one of the following:

[0226] An SRS resource, an SRS resource set, an antenna port supported by an SRS resource or an SRS resource set; wherein the SRS resource or SRS resource set is used for antenna selection.

[0227] In one embodiment, the uplink signal includes at least one of the following: SRS, PUSCH, PUCCH, and PRACH.

[0228] The uplink signal transmission device proposed in this embodiment and the uplink signal transmission method proposed in the above embodiment belong to the same inventive concept. The technical details not described in detail in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the uplink signal transmission method.

[0229] The embodiment of the present application also provides a communication node. The uplink signal transmission method can be executed by an uplink signal transmission device, which can be implemented by software and / or hardware and integrated in the communication node. The communication node can be a terminal, such as a user terminal (User Equipment, UE), and the terminal can send an uplink signal to a service node according to a transmission mechanism; the communication node can also be a service node, such as a base station, and the service node can receive an uplink signal on a corresponding target resource according to a transmission mechanism, thereby obtaining comprehensive downlink channel information.

[0230] Figure 7FIG. 1 is a schematic diagram of a hardware structure of a communication node provided by an embodiment. Figure 7 As shown, a communication node provided in this embodiment includes: a processor 310 and a storage device 320. The processor in the communication node may be one or more, Figure 7 Taking a processor 310 as an example, the processor 310 and the storage device 320 in the device may be connected via a bus or other means. Figure 7 The example of connecting through bus is taken in the following.

[0231] The one or more programs are executed by the one or more processors 310, so that the one or more processors implement the uplink signal transmission method described in any of the above embodiments.

[0232] The storage device 320 in the communication node is a computer-readable storage medium, which can be used to store one or more programs, and the program can be a software program, a computer executable program, and a module, such as the program instructions / modules corresponding to the uplink signal transmission method in the embodiment of the present invention (for example, the attached Figure 6 The modules in the uplink signal transmission device shown include: a mechanism determination module 210 and a transmission module 220). The processor 310 executes various functional applications and data processing of the communication node by running the software programs, instructions and modules stored in the storage device 320, that is, the uplink signal transmission method in the above method embodiment is implemented.

[0233] The storage device 320 mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device, etc. (such as the uplink configuration information, transmission mechanism, etc. in the above-mentioned embodiment). In addition, the storage device 320 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the storage device 320 may further include a memory remotely arranged relative to the processor 310, and these remote memories may be connected to the communication node via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0234] Furthermore, when one or more programs included in the above communication node are executed by the one or more processors 310, the following operations are implemented: determining the transmission mechanism of the uplink signal according to the uplink configuration information; and transmitting the uplink signal on the target resource according to the transmission mechanism.

[0235] The communication node proposed in this embodiment and the uplink signal transmission method proposed in the above embodiment belong to the same inventive concept. The technical details not fully described in this embodiment can be referred to any of the above embodiments, and this embodiment has the same beneficial effects as executing the uplink signal transmission method.

[0236] The embodiment of the present application also provides a storage medium containing computer executable instructions, which are used to execute an uplink signal transmission method when executed by a computer processor. The method includes: determining an uplink signal transmission mechanism according to uplink configuration information; and transmitting the uplink signal on a target resource according to the transmission mechanism.

[0237] Through the above description of the implementation method, the technical personnel in the relevant field can understand that the present application can be implemented by means of software and general hardware, or by hardware. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including multiple instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the method described in any embodiment of the present application.

[0238] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0239] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0240] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. A method for transmitting an uplink signal, characterized in that: include: Determine a transmission mechanism for an uplink signal according to the uplink configuration information; Transmitting an uplink signal on a target resource according to the transmission mechanism; The transmission mechanism comprises: For each serving cell to which uplink transmission resources are allocated, the terminal uses the allocated uplink transmission resources to transmit uplink signals on target resources according to the uplink configuration information; The uplink configuration information includes at least one of the following: antenna configuration information, DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used for codebooks; For each serving cell to which uplink transmission resources are allocated, the terminal transmits an uplink signal on a target resource using the allocated uplink transmission resources according to the uplink configuration information, including at least one of the following: For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas; For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas; For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is less than or equal to the number of transmitting antennas; For each serving cell that allocates uplink transmission resources, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes that the DCI format is format 0_0; For each serving cell that allocates uplink transmission resources, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes DCI format non-format 0_0; For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes information on the number of ports supported by the uplink resources configured on the serving cell for a codebook purpose, and the information on the number of ports supported by the uplink resources configured on the serving cell for a codebook purpose includes: the number of ports is 1; For each service cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, respectively, wherein the uplink configuration information includes information on the number of ports supported by uplink resources configured on the service cell for the purpose of a codebook, and the information on the number of ports supported by uplink resources configured on the service cell for the purpose of a codebook includes: the number of ports is greater than or equal to 2.

2. The method according to claim 1, characterized in that The uplink configuration information includes at least one of the following: antenna configuration information, uplink transmission resource allocation information, downlink control information DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used as codebooks.

3. The method according to claim 2, characterized in that The uplink transmission resource allocation information includes at least one of the following: Each serving cell is allocated an uplink transmission resource; multiple serving cells share one or more uplink transmission resources; The uplink transmission resources are allocated to the service cells having the uplink signal transmission demand within the set time period, and the service cells having the uplink signal transmission demand may be one or more.

4. The method according to claim 3, characterized in that The serving cell includes at least one of the following: a cell supporting transmission of a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH; Cells that support transmission of sounding reference signals (SRS); A cell that supports reception of the physical downlink shared channel (PDSCH) or the physical downlink control channel (PDCCH).

5. The method according to claim 3, characterized in that: The set time period includes one time unit or multiple consecutive time units; The time unit includes at least one of the following: a frame, a subframe, a time slot, a mini time slot, and an orthogonal frequency division multiplexing OFDM symbol.

6. The method according to claim 1, characterized in that The transmission mechanism comprises: The terminal releases all or part of the uplink transmission resources allocated to the first serving cell, and the released uplink transmission resources are used to transmit uplink signals in the second serving cell.

7. The method according to claim 6, characterized in that The first serving cell includes at least one of the following: a source cell of the second serving cell, wherein the source cell of the second serving cell is configured by a serving node; a cell that is not a source cell of the second serving cell; a cell that shares uplink transmission resources with the source cell of the second serving cell; Cells that have transmission requirements within a set time period; The cell that is configured with target resources for transmitting uplink signals.

8. The method according to claim 6, characterized in that The second serving cell includes at least one of the following: The target cell configured as the source cell; A cell configured with target resources for transmitting uplink signals; Serving cells that do not support PUSCH or PUCCH transmission; A cell whose antenna configuration information satisfies a first condition, wherein the first condition includes: the number of transmit antennas supported by the terminal in the second serving cell is greater than or equal to 2; A cell whose antenna configuration information satisfies a second condition, wherein the second condition includes: the number of transmit antennas supported by the terminal in the second serving cell is 1; A cell in which the DCI format for scheduling uplink transmission is a first format, wherein the first format includes: format 0_0; A cell in which the DCI format for scheduling uplink transmission is a second format, wherein the second format includes: a format other than format 0_0; A cell in which the number of ports supported by uplink resources used for a codebook is a first number, wherein the first number is 1; The uplink resources used for the codebook support a second number of cells, where the second number is greater than or equal to 2.

9. The method according to claim 6, characterized in that The uplink transmission resources of the first service cell that are not released by the terminal are used to transmit uplink signals in the first service cell; or, the terminal switches part of the uplink resources of the first service cell to a third service cell and uses them to transmit uplink signals in the third service cell.

10. The method according to claim 1, characterized in that The transmission mechanism includes at least one of the following: The terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The terminal determines, according to the uplink configuration information of the first serving cell, whether to switch the uplink transmission resources of the third serving cell to the second serving cell; The terminal determines, according to the uplink configuration information of the second serving cell, whether to switch the uplink transmission resources of the third serving cell to the second serving cell; The terminal determines whether to switch the uplink transmission resources of the third service cell to the second service cell according to the uplink configuration information of the third service cell.

11. The method according to claim 10, characterized in that The terminal determines, according to the uplink configuration information of the second serving cell, whether to switch the uplink transmission resources of the third serving cell to the second serving cell, including at least one of the following: The uplink configuration information includes antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information includes antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell; The uplink configuration information includes DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second serving cell is non-format 0_0, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information includes DCI format information for scheduling uplink transmission, and when the DCI format for scheduling the second serving cell is format 0_0, the uplink transmission resources of the third serving cell are not switched to the second serving cell; The uplink configuration information includes information about the number of ports supported by uplink resources used for a codebook, and when the number of ports supported by uplink resources used for a codebook is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information includes information about the number of ports supported by uplink resources used for codebooks. When the number of ports supported by uplink resources used for codebooks is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell.

12. The method according to claim 10, characterized in that The terminal determines whether to switch the uplink transmission resources of the third serving cell to the second serving cell according to the uplink configuration information of the first serving cell, including at least one of the following: The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is equal to 1, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the uplink transmission resources of the third serving cell are not switched to the second serving cell; The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the first serving cell is format 0_0, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the second serving cell is non-format 0_0, the uplink transmission resources of the third serving cell are not switched to the second serving cell; The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook, and when the number of ports supported by uplink resources used for a codebook is equal to 1, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook. When the number of ports supported by uplink resources used for a codebook is greater than or equal to 2, the uplink transmission resources of the third serving cell are not switched to the second serving cell.

13. The method according to claim 10, characterized in that The terminal determines, according to the uplink configuration information of the third serving cell, whether to switch the uplink transmission resources of the third serving cell to the second serving cell, including at least one of the following: The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information is antenna configuration information, and when the number of transmit antennas supported in the antenna configuration information is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell; The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the third serving cell is non-format 0_0, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information is DCI format information for scheduling uplink transmission. When the DCI format for scheduling the third serving cell is format 0_0, the uplink transmission resources of the third serving cell are not switched to the second serving cell; The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook, and when the number of ports supported by uplink resources used for a codebook is greater than or equal to 2, the terminal switches the uplink transmission resources of the third serving cell to the second serving cell; The uplink configuration information is information about the number of ports supported by uplink resources used for a codebook. When the number of ports supported by uplink resources used for a codebook is equal to 1, the uplink transmission resources of the third serving cell are not switched to the second serving cell.

14. The method according to claim 1, characterized in that Also includes: Transmitting scheduling information for uplink signals; When the terminal supports two uplink transmission resources and meets the set conditions, the scheduling information includes DCI of format 0_0, DCI of format 0_1 ​​with the number of associated SRS ports being 1, or DCI of format 0_2 with the number of associated SRS ports being 1.

15. The method according to claim 14, characterized in that The setting conditions include at least one of the following: The number of transmit antennas supported by the terminal on the first serving cell is greater than or equal to 2; Both uplink transmission resources are allocated to the same serving cell.

16. The method according to any one of claims 1 to 15, characterized in that: The transmission mechanism is predefined or semi-statically configured by the service node.

17. The method according to any one of claims 1 to 15, characterized in that: The uplink transmission resource includes at least one of the following: a radio frequency chain and a transmission antenna.

18. The method according to any one of claims 1 to 15, characterized in that: The target resource includes at least one of the following: SRS resource, SRS resource set, antenna ports supported by SRS resource or SRS resource set.

19. The method according to claim 18, characterized in that The purpose of the SRS resource or SRS resource set is antenna selection.

20. The method according to any one of claims 1 to 15, characterized in that: The uplink signal includes at least one of the following: SRS, PUSCH, physical uplink control channel PUCCH, physical random access channel PRACH.

21. An uplink signal transmission device, characterized in that: include: a mechanism determination module, configured to determine a transmission mechanism for an uplink signal according to the uplink configuration information; a transmission module, configured to transmit an uplink signal on a target resource according to the transmission mechanism; The transmission mechanism comprises: For each serving cell to which uplink transmission resources are allocated, the terminal uses the allocated uplink transmission resources to transmit uplink signals on target resources according to the uplink configuration information; The uplink configuration information includes at least one of the following: antenna configuration information, DCI format information for scheduling uplink transmission, and information on the number of ports supported by uplink resources used for codebooks; For each serving cell to which uplink transmission resources are allocated, the terminal transmits an uplink signal on a target resource using the allocated uplink transmission resources according to the uplink configuration information, including at least one of the following: For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas; For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is greater than the number of transmitting antennas; For each serving cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes antenna configuration information, and the antenna configuration information includes that the number of receiving antennas supported by the terminal is less than or equal to the number of transmitting antennas; For each serving cell that allocates uplink transmission resources, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes that the DCI format is format 0_0; For each serving cell that allocates uplink transmission resources, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes DCI format information for scheduling uplink transmission on the serving cell, and the DCI format information for scheduling uplink transmission on the serving cell includes DCI format non-format 0_0; For each serving cell to which uplink transmission resources are allocated, the terminal uses the same uplink transmission resources to transmit uplink signals on different target resources, wherein the uplink configuration information includes information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of a codebook, and the information on the number of ports supported by the uplink resources configured on the serving cell for the purpose of a codebook includes: the number of ports is 1; For each service cell to which uplink transmission resources are allocated, the terminal uses different uplink transmission resources to transmit uplink signals on different target resources, respectively, wherein the uplink configuration information includes information on the number of ports supported by uplink resources configured on the service cell for the purpose of a codebook, and the information on the number of ports supported by uplink resources configured on the service cell for the purpose of a codebook includes: the number of ports is greater than or equal to 2.

22. A communication node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the uplink signal transmission method as described in any one of claims 1-20.

23. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the uplink signal transmission method as described in any one of claims 1 to 20 is implemented.

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