CN117693019A

CN117693019A - Uplink data transmission method and related equipment

Info

Publication number: CN117693019A
Application number: CN202410144384.8A
Authority: CN
Inventors: 郑国增
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2024-02-01
Filing date: 2024-02-01
Publication date: 2024-03-12

Abstract

The application provides an uplink data transmission method and related equipment, wherein the control information comprises a channel sounding reference Signal (SRI) resource indicator (SRI) used for indicating SRS resources from SRS resources in a centralized manner by receiving control information of an uplink transmission channel; determining a transmitting antenna port for transmitting an uplink transmission channel according to the corresponding relation between SRS resources indicated by SRI and the transmitting antenna port; and transmitting the uplink transmission channel based on the transmitting antenna port of the uplink transmission channel. Based on the corresponding relation between the SRS resource and the transmitting antenna port, the corresponding transmitting antenna port can be determined after the SRS resource is determined, and the problem of uplink interference can be effectively avoided under the condition that the transmitting antenna port is determined.

Description

Uplink data transmission method and related equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an uplink data transmission method and related devices.

Background

With the development of mobile communication technology, the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G) with high speed, low time delay and large connection features is increasingly widely used.

Currently, when uplink data is transmitted based on the 5G standard, channel quality can be detected and estimated through a channel sounding reference signal (Sounding Reference Signal, SRS). The terminal device may determine an SRS resource in the SRS resource set, and determine a transmit antenna port corresponding to the SRS resource in the multiple transmit antenna ports, and send an uplink transmission channel through the transmit antenna port.

However, since the transmitting antenna port corresponding to the SRS resource is determined by the terminal device, different uplink interference may be introduced to the base station by different transmitting antenna ports, and in the case that the base station cannot determine the transmitting antenna port corresponding to the SRS resource, it is difficult to avoid the uplink interference problem.

Disclosure of Invention

The application provides an uplink data transmission method and related equipment, and aims to solve the problem of uplink interference.

In order to achieve the above purpose, the present application adopts the following technical scheme:

first aspect: the application provides an uplink data transmission method, which is applied to terminal equipment, wherein the control information comprises a channel sounding reference Signal (SRI) resource indicator (SRI) used for indicating SRS resources from SRS resources in a centralized manner by receiving control information of an uplink transmission channel; determining a transmitting antenna port for transmitting an uplink transmission channel according to the corresponding relation between SRS resources indicated by SRI and the transmitting antenna port; and transmitting the uplink transmission channel based on the transmitting antenna port of the uplink transmission channel.

The uplink data transmission method provided by the application can be used for determining the corresponding transmitting antenna port after determining the SRS resource based on the corresponding relation between the SRS resource and the transmitting antenna port, and can be used for effectively avoiding the uplink interference problem under the condition of determining the transmitting antenna port. Meanwhile, because the SRS resource and the transmitting antenna port have a definite corresponding relation, the problem of unmatched matching of the SRS resource and the transmitting antenna port can be avoided.

In one possible implementation, each SRS resource in the SRS resource set corresponds to a transmit antenna port, and the SRI is configured to indicate at least one SRS resource from the SRS resource set.

In one possible implementation, the SRS resources indicated by the SRI may be determined according to a correspondence between the identification numbers indicated by the SRI and the SRS resources; and determining the transmitting antenna port for transmitting the uplink transmission channel according to the relation between the SRS resource and the transmitting antenna port.

In one possible implementation, each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, each transmit antenna port corresponds to a port index, the SRI indicates at least one SRS resource and the port index corresponding to each SRS resource from the SRS resource set, and the plurality of transmit antenna ports corresponding to each SRS resource are determined according to a correspondence between each SRS resource and the transmit antenna port; and determining the transmitting antenna port corresponding to the port index corresponding to each SRS resource as the transmitting antenna port for transmitting the uplink transmission channel from a plurality of transmitting antenna ports corresponding to each SRS resource according to the port index corresponding to each SRS resource.

In one possible implementation, the sum of the numbers of port indexes corresponding to all SRS resources indicated by the SRI is equal to the number of transmit antenna ports for transmitting the uplink transmission channel.

In one possible implementation, each SRS resource in the SRS resource set corresponds to one transmit antenna port, and the number of SRS resources configured in the SRS resource set is less than or equal to the maximum number of transmit antenna ports supported by the terminal device.

In a possible implementation manner, each SRS resource in the SRS resource set corresponds to a transmitting antenna port, the number of maximum transmitting antenna ports supported by the terminal device is less than or equal to the number of maximum receiving antenna ports, and the number of SRS resources configured in the SRS resource set is less than or equal to the number of maximum receiving antenna ports.

In one possible implementation, each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, and a sum of numbers of transmit antenna ports corresponding to all SRS resources configured in the SRS resource set is less than or equal to a maximum number of transmit antenna ports supported by the terminal device.

In one possible implementation, each SRS resource in the SRS resource set corresponds to a plurality of transmitting antenna ports, the maximum number of transmitting antenna ports supported by the terminal device is smaller than the maximum number of receiving antenna ports, and the sum of the numbers of transmitting antenna ports corresponding to all SRS resources configured in the SRS resource set is smaller than or equal to the maximum number of receiving antenna ports.

In one possible implementation, after receiving the control information of the uplink transmission channel, SRS resources for determining a power control parameter for uplink transmission channel transmission may also be determined from at least one SRS resource indicated by the SRI.

In one possible implementation, each SRS resource corresponds to an identifier, and determining, from at least one SRS resource indicated by the SRI, an SRS resource for determining a power control parameter for uplink transmission channel transmission includes: and determining the SRS resource with the minimum identification number from at least one SRS resource indicated by the SRI as the SRS resource for determining the power control parameter transmitted by the uplink transmission channel.

In one possible implementation, after receiving the control information of the uplink transmission channel, SRS resources for determining spatial filtering parameters for uplink transmission channel transmission may also be determined from at least one SRS resource indicated by the SRI.

In one possible implementation, each SRS resource corresponds to an identifier, and determining SRS resources for determining spatial filtering parameters for uplink transmission channel transmission from at least one SRS resource indicated by the SRI includes: and determining the SRS resource with the minimum identification number from at least one SRS resource indicated by the SRI as the SRS resource for determining the spatial filtering parameter of the uplink transmission channel transmission.

Second aspect: the embodiment of the application provides an uplink data transmission method, which is applied to network equipment, and is used for indicating SRS resources from SRS resources in a centralized manner by sending control information of an uplink transmission channel, wherein the control information comprises a channel sounding reference signal resource indicator SRI; and receiving the uplink transmission channel based on the transmitting antenna port of the uplink transmission channel, wherein the transmitting antenna port of the uplink transmission channel is determined according to the corresponding relation between SRS resources indicated by SRI and the transmitting antenna port.

In one possible implementation, the SRI indicates an identification number corresponding to the SRS resource, the identification number being used to determine the SRS resource.

In one possible implementation, each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, each transmit antenna port corresponds to a port index, and the SRI indicates at least one SRS resource and the port index corresponding to each SRS resource from the SRS resource set.

Third aspect: the application provides an electronic device, the electronic device includes: a processor and a memory; the memory is used for storing program codes and transmitting the program codes to the processor; the processor is configured to perform the steps of an uplink data transmission method as described above according to instructions in the program code.

Fourth aspect: the present application provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of an uplink data transmission method as described above.

Drawings

Fig. 1 is a schematic diagram of a conventional SRS resource transmission;

fig. 2 is a diagram illustrating a scenario in which a base station and a terminal device perform data transmission according to an embodiment of the present application;

fig. 3 is a schematic diagram of mapping relationship between SRS resources and transmitting antenna ports provided in an embodiment of the present application;

fig. 4 is a schematic diagram of configuring an SRS resource according to an embodiment of the present application;

fig. 5 is a schematic diagram of configuring two SRS resources according to the embodiment of the present application;

fig. 6 is a schematic diagram illustrating an indication of an SRS resource according to an embodiment of the present application;

Fig. 7 is a schematic diagram illustrating indication of a plurality of SRS resources according to an embodiment of the present application;

fig. 8 is a schematic diagram of determining SRS resources based on an indication identifier according to an embodiment of the present application;

fig. 9 is a schematic diagram of determining a transmitting antenna port based on an indication identification number according to an embodiment of the present application;

fig. 10 is a schematic diagram of indicating SRS resources based on the maximum number of receiving antenna ports according to an embodiment of the present application;

fig. 11 is a schematic diagram of indicating SRS resources based on the number of port indexes according to the embodiment of the present application;

fig. 12 is a schematic diagram of another indication of SRS resources based on the number of port indexes according to the embodiment of the present application;

fig. 13 is a schematic diagram of another determination of SRS resources based on indication identification numbers according to an embodiment of the present application;

fig. 14 is a schematic diagram of indicating SRS resources based on the maximum number of transmit antenna ports according to an embodiment of the present application;

fig. 15 is a schematic diagram of hardware components of an electronic device according to an embodiment of the present application;

fig. 16 is a schematic diagram of hardware components of another electronic device according to an embodiment of the present application.

Detailed Description

The terms first, second, third and the like in the description and in the claims and drawings are used for distinguishing between different objects and not for limiting the specified sequence.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The uplink transmission channel (Physical Uplink Shared Channel, PUSCH) is a physical channel for uplink data transmission in long term evolution (Long Term Evolution, LTE) and 5G mobile communication systems. It allows the terminal device of the user terminal to transmit data to the base station for communication services such as voice call, video call, and internet access.

In the practical application process, the terminal device may invoke a channel sounding reference signal resource indicator (Sounding Reference Signal resource indicator, SRI) in control information (Downlink Control Information, DCI) of the PUSCH, and determine one channel sounding reference signal (Sounding Reference Signal, SRS) from an SRS resource set (SRS resource set). Wherein SRS may be used for estimated channel quality detection and estimation.

Currently, when uplink data is transmitted based on the 5G standard, channel quality can be detected and estimated through a channel sounding reference signal (Sounding Reference Signal, SRS). After determining an SRS resource in the SRS resource set, the terminal device determines a transmitting antenna port corresponding to the SRS resource in the plurality of transmitting antenna ports, and sends an uplink transmission channel to the base station through the transmitting antenna port.

As shown in fig. 1, the diagram is a schematic diagram of existing SRS resource transmission, where there is no mapping relationship between SRS resources and transmit antenna ports, and the terminal device may determine, based on the SRS indicated by the SRI field in the DCI, any one of the first transmit antenna port 1101, the second transmit antenna port 1102, the third transmit antenna port 1103, and the fourth transmit antenna port 1104 as a transmit antenna port corresponding to the SRS, and transmit an uplink transmission channel based on the transmit antenna port.

Because the transmitting antenna port corresponding to the SRS resource is determined by the terminal device at the user end, different transmitting antenna ports may introduce different uplink interference to the network device, and it is difficult to avoid the uplink interference problem under the condition that the network device cannot determine the transmitting antenna port corresponding to the SRS resource.

Based on this, the present application provides an uplink data transmission method, by establishing a mapping relationship between SRS resources and transmitting antenna ports, after determining SRS resources from an SRS resource set, determining a transmitting antenna port corresponding to the SRS resources as a transmitting antenna port for transmitting the uplink transmission channel based on the mapping relationship between the SRS resources and the transmitting antenna ports. In the method, the network equipment can determine the transmitting antenna port corresponding to the SRS resource based on the mapping relation between the SRS resource and the transmitting antenna port, and under the condition that the corresponding transmitting antenna port is determined after the SRS resource is determined, so that the problem of uplink interference can be effectively avoided.

The present application provides an uplink data transmission method applicable to data transmission between a network device and a terminal device, where the network device may be a device used by a network side to provide a network communication function, and in some cases also referred to as a network element, where the network device may generally be a base station (including a functional unit of the base station, or a combination of functional units of the base station) or a core network unit, where the core network unit may be a functional unit in a core network, including but not limited to an access and mobility management function (Access and Mobility Management Function, AMF) unit or a session management function (Session Management Function, SMF) unit. The terminal device may be a device accessing the network, typically a terminal. Referring to fig. 2, an exemplary diagram of a scenario in which a base station and a terminal device perform data transmission according to an embodiment of the present application is shown. Fig. 2 includes a base station 1001 and a terminal device 1002.

In the embodiments provided herein, the base station may be any device having a wireless transceiver function, including but not limited to: an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in long term evolution (long term evolution, LTE), a base station (gnnodeb or gNB) or transceiver point (transmission receiving point/transmission reception point, TRP) in New Radio (NR), a base station for 3GPP subsequent evolution, an access node in Wi-Fi system, a wireless relay node, a wireless backhaul node, etc. The base station may be: macro base station, micro base station, pico base station, small station, relay station, balloon station, or the like. A base station may include one or more co-sited or non-co-sited transmission points (Transmission Reception Point, TRP). The base station may also be a radio controller, a Centralized Unit (CU), and/or a Distributed Unit (DU) in the cloud radio access network (cloud radio access network, CRAN) scenario. The base station may communicate with the terminal or may communicate with the terminal through a relay station. The terminal may communicate with a plurality of base stations of different technologies, for example, the terminal may communicate with a base station supporting an LTE network, may communicate with a base station supporting a 5G network, and may perform dual connectivity with the base station supporting the LTE network and the base station supporting the 5G network. The following description will take a network device as an example of a base station.

In the embodiments provided herein, the terminal may be in various forms, such as a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medium), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wearable terminal device, and the like. A terminal may also be referred to as a terminal device, user Equipment (UE), access terminal device, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, UE apparatus, or the like. The terminal may also be a fixed terminal or a mobile terminal.

An uplink data transmission method according to an embodiment of the present application will be described below based on fig. 3 to 14.

Embodiment one:

in this embodiment of the present application, the SRS resources in the SRS resource set are configured as a single port, that is, one SRS resource corresponds to one transmitting antenna port, and based on the mapping relationship between the SRS resource and the transmitting antenna port, after the SRS resource is specified, the base station corresponds to the transmitting antenna port corresponding to the specified SRS resource. Under the condition of determining the transmitting antenna port, the problem of uplink interference can be effectively avoided.

In the embodiment of the present application, the base station may determine SRS resources from the SRS resource set for the codebook, and measure the uplink channel based on the determined SRS resources.

Illustratively, the terminal device receives control information (DCI) for the uplink transport channel, which may include an SRI for indicating SRS resources from the SRS resource set.

As shown in fig. 3, SRS resources of 4 single ports on the terminal device side may be transmitted on the 4 transmitting antenna ports, that is, the first SRS resource corresponds to the first transmitting antenna port 1101, the second SRS resource corresponds to the second transmitting antenna port 1102, the third SRS resource corresponds to the third transmitting antenna port 1103, and the fourth SRS resource corresponds to the fourth transmitting antenna port 1104. After the base station indicates the first SRS resource based on the SRI field, the first transmit antenna port 1101 corresponding to the first SRS resource may be determined as a transmit antenna port for transmitting the uplink transmission channel; after the base station indicates the second SRS resource based on the SRI field, the second transmit antenna port 1102 corresponding to the second SRS resource may be determined to be a transmit antenna port for transmitting the uplink transmission channel, and so on.

In one possible implementation, the number of SRS resources that can be configured in one SRS resource set is less than or equal to the maximum number of transmit antenna ports supported by the terminal. For example, if the maximum number of transmit antenna ports supported by the terminal is 4, the number of SRS resources that can be configured from one SRS resource set is less than or equal to 4.

As shown in fig. 4, when the maximum number of transmit antenna ports supported by the terminal is 4, one SRS resource is configured. That is, in fig. 4 (a), a first SRS resource corresponding to the first transmission antenna port 1101 is configured; a second SRS resource corresponding to the second transmit antenna port 1102 is configured in (b) in fig. 4; in fig. 4 (c), a third SRS resource corresponding to the third transmit antenna port 1103 is configured; in fig. 4 (d), a fourth SRS resource corresponding to the fourth transmit antenna port 1104 is configured.

As shown in fig. 5, when the maximum number of transmit antenna ports supported by the terminal is 4, two SRS resources are configured, that is, in (a) in fig. 5, a first SRS resource corresponding to the first transmit antenna port 1101 and a second SRS resource corresponding to the second transmit antenna port 1102 are configured; in fig. 5 (b), a second SRS resource corresponding to the second transmit antenna port 1102 and a third SRS resource corresponding to the third transmit antenna port 1103 are configured.

In one possible implementation, the base station may indicate one or more SRS resources at a time through the SRI in the DCI. Wherein, SRS resources may be used to determine a transmit antenna port used when transmitting PUSCH. The transmitting antenna port is an antenna port used when the PUSCH is transmitted, and is an antenna port used when the terminal transmits one or more SRS resources indicated by the SRI field.

In this embodiment of the present application, the SRS resources are in one-to-one correspondence with the transmitting antenna ports, and the base station indicates one or more SRS resources through the SRI field in the DCI, which is equivalent to indicating the transmitting antenna port corresponding to one SRS resource or the transmitting antenna ports corresponding to each of the plurality of SRS resources.

For example, if the maximum number of transmit antenna ports supported by the terminal is 4, 4 SRS resources may be configured from one SRS resource set, and the base station may indicate one or more SRS resources at a time through the SRI in the DCI.

As shown in fig. 6, the diagram is a schematic diagram of indicating one SRS resource provided in the embodiment of the present application, where in the case where 4 SRS resources are configured, the SRI indicates one SRS resource at a time, and the transmit antenna port when the PUSCH is transmitted is the same as the transmit antenna port used when the terminal transmits the SRS resource indicated by the SRI field. In fig. 6 (a), the SRI field indicates a first SRS resource corresponding to the first transmit antenna port 1101; in fig. 6 (b), the SRI field indicates a second SRS resource corresponding to the second transmit antenna port 1102; in fig. 6 (c), the SRI field indicates a third SRS resource corresponding to the third transmit antenna port 1103; in fig. 6 (d), the SRI field indicates a fourth SRS resource corresponding to the fourth transmit antenna port 1104.

As shown in fig. 7, the diagram is a schematic diagram of indicating a plurality of SRS resources provided in the embodiment of the present application, where in the case where 4 SRS resources are configured, the SRI indicates a plurality of SRS resources at a time, and a transmit antenna port when PUSCH is transmitted is the same as a transmit antenna port used when a terminal transmits the SRS resources indicated by the SRI field. In fig. 7 (a), the SRI field indicates a second SRS resource corresponding to the second transmit antenna port 1102 and a third SRS resource corresponding to the third transmit antenna port 1103; in fig. 7 (b), the SRI field indicates a second SRS resource corresponding to the second transmit antenna port 1102, a third SRS resource corresponding to the third transmit antenna port 1103, and a fourth SRS resource corresponding to the fourth transmit antenna port 1104.

In the embodiment of the present application, since the SRS resources are in one-to-one correspondence with the transmit antenna ports, the number of transmit antenna ports used when transmitting PUSCH is equal to the number of SRS resources indicated by the SRI field. Meanwhile, the number of SRS resources indicated by the SRI field may be equal to the number of ports corresponding to the precoding information indicated by the TPMI field.

The TPMI field may indicate the number of transmission layers of the PUSCH or the number of ports corresponding to the demodulation reference signal (Demodulation Reference Signal, DMRS), and data of each layer of the PUSCH may be transmitted on a transmit antenna port associated with the SRS resource indicated by the SRI field.

The precoding technology of the uplink transmission channel is a signal processing technology widely applied to wireless communication, and the channel transmission effect is improved mainly by changing the phase, amplitude, direction and the like of a transmitted signal, so that the signal after the channel can be better recovered at a receiving end, the data transmission rate is improved, and the error rate and the energy consumption are reduced.

The number of transmission layers (layers) of the PUSCH and the precoding matrix used for each layer may be determined by calling precoding information (TMPI) in DCI of the PUSCH. The precoding matrix is related to the maximum number of transmission layers supported by the PUSCH and the number of transmitting antenna ports corresponding to the channel sounding reference signal. For example, if the number of transmission layers of PUSCH indicated by TPMI is 2 and the number of transmit antenna ports corresponding to the channel sounding reference signal indicated by sri is 4, the PUSCH may be precoded by using a 2×4 precoding matrix.

For example, when the SRI field indicates the first SRS resource and the second SRS resource, the number of SRS resources indicated by the SRI field is 2, the number of antenna ports used when the PUSCH transmits the SRS resource is 2, and the number of transmission layers of the PUSCH indicated by the TPMI field is 2. Then the TPMI needs to instruct a 2×2 precoding matrix to precode PUSCH.

In one possible implementation, the precoding of the TPMI indication is a phase intervention coding. That is, the elements in the precoding matrix cannot be zero.

In the embodiment of the present application, the number of layers of PUSCH transmission can exceed the number of SRS resources indicated by the SRI field. For example, the maximum number of transmission layers supported by PUSCH is 4, and the sri may indicate 1 SRS resource, 2 SRS resources, 3 SRS resources, or 4 SRS resources.

In one possible implementation, the SRI in the DCI based may indicate SRS resources among a plurality of SRS resources for determining a power control related parameter for PUSCH transmission. For example, when the base station indicates the second SRS resource and the third SRS resource once through the SRI in the DCI, the third SRS resource may be determined as the SRS resource for determining the power control related parameter of the PUSCH transmission.

In one possible implementation, the SRI in the DCI based may indicate SRS resources among a plurality of SRS resources for determining spatial filtering (or beam/quasi co-sited) related parameters for PUSCH transmission. For example, when the base station may indicate the second SRS resource and the third SRS resource through the SRI in the DCI at a time, the third SRS resource therein may be determined as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter of the PUSCH transmission.

In one possible implementation, the same spatial filtering parameters may be configured for all SRS resources within one SRS resource set.

In one possible implementation, each SRS resource may be configured with an identification number uniquely corresponding thereto, where the identification number is used to indicate the corresponding SRS resource. In this case, the base station may indicate the identification number through the SRI field in the DCI, and indicate the SRS resource corresponding to the identification number based on the correspondence between the identification number and the SRS resource.

For example, the first SRS resource corresponds to an identification number of 1, the second SRS resource corresponds to an identification number of 2, the third SRS resource corresponds to an identification number of 3, and the fourth SRS resource corresponds to an identification number of 4. In this case, as shown in fig. 8, the base station may specify the first SRS resource corresponding to the identification number 1 from the SRS resource set by indicating the identification number 1, and further specify the first transmitting antenna port 1101 corresponding to the first SRS resource. Alternatively, as shown in fig. 9, the base station may determine, by indicating the identification number 2 and the identification number 3, a second SRS resource corresponding to the identification number 2 and a third SRS resource corresponding to the identification number 3 from the SRS resource set, and further determine a second transmit antenna port 1102 corresponding to the second SRS resource and a third transmit antenna port 1103 corresponding to the third SRS resource.

It may be appreciated that the above identification number configured for each SRS resource is merely an example, and the form of the identification number corresponding to each SRS resource in the embodiment of the present application is not specifically limited.

In one possible implementation, the SRS resource with the smallest identification number may be indicated as the SRS resource for determining the power control related parameter for PUSCH transmission among the plurality of SRS resources based on the SRI in the DCI. For example, when the base station may indicate the second SRS resource and the third SRS resource through the SRI in the DCI at a time, where the second SRS resource corresponds to the identification number 2 and the third SRS resource corresponds to the identification number 3, the second SRS resource corresponding to the identification number 2 may be determined as the SRS resource for determining the power control related parameter of PUSCH transmission. Likewise, the SRS resource with the largest identification number may be indicated as the SRS resource for determining the power control related parameter for PUSCH transmission among the plurality of SRS resources based on the SRI in the DCI.

In one possible implementation, the SRS resource with the smallest identification number may be indicated as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter for PUSCH transmission, among the plurality of SRS resources, based on the SRI in the DCI. For example, when the base station may indicate the second SRS resource and the third SRS resource through the SRI in the DCI at a time, where the second SRS resource corresponds to the identification number 2 and the third SRS resource corresponds to the identification number 3, the second SRS resource corresponding to the identification number 2 may be determined as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter of PUSCH transmission. Likewise, the SRS resource with the largest identification number may be indicated as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter of PUSCH transmission among the plurality of SRS resources based on the SRI in the DCI.

Embodiment two:

in the embodiment of the present application, SRS resources in the SRS resource set are configured as a single port. Unlike the first embodiment described above, in the embodiment of the present application, the number of SRS resources that can be configured in one SRS resource set is related to the maximum number of receiving antenna ports supported by the terminal device, that is, when the maximum number of transmitting antenna ports supported by the terminal device is smaller than the maximum number of receiving antenna ports, the number of SRS resources that can be configured in one SRS resource set is smaller than or equal to the maximum number of receiving antenna ports supported by the terminal device. The SRS resource number indicated by the SRI domain is smaller than or equal to the maximum transmitting antenna port number supported by the terminal.

For example, the maximum number of receiving antenna ports supported by the terminal device is 8, but the maximum number of transmitting antenna ports supported by the terminal device is 4, and the maximum number of transmitting antenna ports is smaller than the maximum number of receiving antenna ports, so that the number of configurable SRS resources in one SRS resource set is smaller than or equal to 8.

As fig. 10 illustrates a case of configuring 8 SRS resources, since the maximum number of transmit antenna ports supported by the terminal device is 4, the sri may indicate at most 4 SRS resources at a time, in this case, at most 4 transmit antenna ports may be used when PUSCH is transmitted. For example, as shown in fig. 10, the terminal device may first send the first SRS resource, the second SRS resource, the third SRS resource, and the fourth SRS resource through the first transmit antenna port 1101, the second transmit antenna port 1102, the third transmit antenna port 1103, and the fourth transmit antenna port 1104, respectively. Thereafter, the terminal device may further transmit the fifth SRS resource, the sixth SRS resource, the seventh SRS resource, and the eighth SRS resource through the fifth transmitting antenna port 1105, the sixth transmitting antenna port 1106, the seventh transmitting antenna port 1107, and the eighth transmitting antenna port 1108, respectively. The SRI field indicates that four SRS resources, that is, transmit antenna ports used when PUSCH is transmitted, among the configured 8 SRS resources are transmit antenna ports used when the terminal transmits the four SRS resources.

Note that, the specific implementation manner of the same parts of the second embodiment and the first embodiment in the present application is consistent with the implementation manner and the achieved technical effects described in the first embodiment, and is not described herein again.

Embodiment III:

in this embodiment of the present application, the SRS resources in the SRS resource set are configured as multiple ports, that is, one SRS resource may correspond to multiple transmit antenna ports, and after the SRS resource is specified, the base station is equivalent to defining the transmit antenna port for transmitting the SRS resource among the multiple transmit antenna ports corresponding to the SRS resource based on the mapping relationship between the SRS resource and the multiple transmit antenna ports.

In the embodiment of the present application, the base station may configure an SRS resource set for a codebook, and determine SRS resources from the SRS resource set to perform measurement and estimation of an uplink channel.

In one possible implementation, the number of SRS resources that can be configured within one SRS resource set is related to the maximum number of transmit antenna ports supported by the terminal and the number of ports per SRS resource.

Illustratively, the number of ports for all SRS resources in the SRS resource set to add up is equal to the maximum number of transmit antenna ports supported by the terminal. For example, the maximum number of transmit antenna ports supported by the terminal is 4, and a first SRS resource and a second SRS resource are configured in the SRS resource set, where the number of transmit antenna ports corresponding to the first SRS resource is 2, and the number of transmit antenna ports corresponding to the second SRS resource is 2.

In one possible implementation, the number of transmit antenna ports corresponding to each SRS resource within the SRS resource set is the same. For example, the maximum number of transmit antenna ports supported by the terminal is 4, and the number of transmit antenna ports corresponding to each SRS resource in the SRS resource set may be 2, that is, the number of transmit antenna ports corresponding to the first SRS resource is 2, and the number of transmit antenna ports corresponding to the second SRS resource is 2.

In one possible implementation, the SRI field in the DCI may indicate the SRS resource and its port index.

One SRS resource may correspond to a plurality of transmit antenna ports, and each transmit antenna port corresponds to a port index, where the port index is used to indicate a transmit antenna port used to transmit the SRS resource.

The transmit antenna port used in PUSCH transmission may be determined based on the plurality of SRS resources indicated by the SRI field and the port index corresponding to each SRS resource. The number of transmitting antenna ports used in PUSCH transmission is equal to the number of port indexes of SRS resources indicated by the SRI field.

Meanwhile, the port index number of SRS resources indicated by the SRI domain is equal to the port number corresponding to precoding indicated by the TPMI.

The number of transmission layers (layers) of the PUSCH and the precoding matrix used for each layer may be determined by calling precoding information (TMPI) in DCI of the PUSCH. The precoding matrix is related to the maximum number of transmission layers supported by the PUSCH and the number of transmitting antenna ports corresponding to the channel sounding reference signal. For example, if the number of transmission layers of PUSCH indicated by TPMI is 2 and the number of port indexes of SRS resources indicated by sri is 4, the precoding matrix of 2×4 may be used to perform PUSCH precoding.

The port index number of SRS resources indicated by the SRI domain is smaller than or equal to the maximum transmitting antenna port number supported by the terminal equipment.

For example, in the case where the maximum number of transmit antenna ports supported by the terminal device is 4, the number of port indexes of SRS resources indicated by the SRI field is less than or equal to 4. As shown in fig. 11, the maximum number of transmit antenna ports supported by the terminal device is 4, and the SRS resource set is configured with 2 SRS resources, and each SRS resource may be transmitted on 2 transmit antenna ports. The ports of all SRS resources configured in the SRS resource set include a first transmit antenna port 1101 corresponding to the first SRS resource, a second transmit antenna port 1102 corresponding to the first SRS resource, a third transmit antenna port 1103 corresponding to the second SRS resource, and a fourth transmit antenna port 1104 corresponding to the second SRS resource.

A partial port may be selected from the 4 transmit antenna ports described above based on the DCI domain as an antenna port used when transmitting PUSCH. As shown in fig. 12, the SRI field in the DCI selects a second transmit antenna port 1102 corresponding to the first SRS resource and a third transmit antenna port 1103 corresponding to the second SRS resource. Then, the transmit antenna ports used when the terminal transmits PUSCH are the second transmit antenna port 1102 and the third transmit antenna port 1103.

For example, the transmit antenna port corresponding to the transmit PUSCH may be determined by the port index indicated by the SRI field in the DCI, as shown in fig. 12, where the port indexes corresponding to the first transmit antenna port 1101, the second transmit antenna port 1102, the third transmit antenna port 1103, and the fourth transmit antenna port 1104 are 0, 1, 2, and 3, respectively. The SRI field may indicate the port indexes corresponding to the first SRS resource and the second SRS resource while indicating the first SRS resource and the second SRS resource, for example, the SRI field indicates that the port index corresponding to the first SRS resource is 1 and the port index corresponding to the second SRS resource is 2, which indicates that the transmit antenna port used when the terminal transmits the PUSCH is the transmit antenna port with the port index corresponding to the first SRS resource being 1 and the port index corresponding to the second SRS resource being 2.

In one possible implementation, the SRI in the DCI based may indicate SRS resources among a plurality of SRS resources for determining a power control related parameter for PUSCH transmission. For example, when the base station may indicate the second SRS resource and the third SRS resource through the SRI in the DCI at a time, the third SRS resource may be determined as the SRS resource for determining the power control related parameter of the PUSCH transmission.

In one possible implementation, the SRI field in the DCI-based may indicate among a plurality of SRS resources used to determine spatial filtering (or beam/quasi co-location) related parameters for PUSCH transmission. For example, when the base station may indicate the second SRS resource and the third SRS resource through the SRI in the DCI at a time, the third SRS resource therein may be determined as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter of the PUSCH transmission.

In one possible implementation, each SRS resource may be configured with an identification number uniquely corresponding thereto, where the identification number is used to indicate the corresponding SRS resource. In this case, the base station may instruct the SRS resource corresponding to the identification number based on the relation between the identification number and the SRS resource by indicating the identification number based on the SRI field in the DCI.

For example, the identification number corresponding to the first SRS resource is 1 and the identification number corresponding to the second SRS resource is 2, in which case, as shown in fig. 13, the base station may determine the first SRS resource corresponding to the identification number 1 from the SRS resource set by indicating the identification number 1, and further determine a plurality of transmitting antenna ports corresponding to the first SRS resource. Or, the base station may determine the second SRS resource corresponding to the identification number 2 from the SRS resource set by indicating the identification number 2, and further determine a plurality of transmitting antenna ports corresponding to the second SRS resource according to a mapping relationship between the second SRS resource and the transmitting antenna ports.

In one possible implementation, the SRS resource with the smallest identification number may be indicated as the SRS resource for determining the power control related parameter for PUSCH transmission among the plurality of SRS resources based on the SRI in the DCI. For example, when the base station may indicate the first SRS resource and the second SRS resource through the SRI in the DCI at a time, where the first SRS resource corresponds to the identification number 1 and the second SRS resource corresponds to the identification number 2, the first SRS resource corresponding to the identification number 1 may be determined as the SRS resource for determining the power control related parameter of PUSCH transmission. Likewise, the SRS resource with the largest identification number may be indicated as the SRS resource for determining the power control related parameter for PUSCH transmission among the plurality of SRS resources based on the SRI in the DCI.

In one possible implementation, the SRS resource with the smallest identification number may be indicated as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter for PUSCH transmission, among the plurality of SRS resources, based on the SRI in the DCI. For example, when the base station indicates the first SRS resource and the second SRS resource through the SRI in the DCI at a time, where the first SRS resource corresponds to the identification number 1 and the second SRS resource corresponds to the identification number 2, the first SRS resource corresponding to the identification number 1 may be determined as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter of PUSCH transmission. Likewise, the SRS resource with the largest identification number may be indicated as the SRS resource for determining the spatial filtering (or beam/quasi co-location) related parameter of PUSCH transmission among the plurality of SRS resources based on the SRI in the DCI.

Embodiment four:

in the embodiment of the present application, the SRS resources in the SRS resource set are configured to be multiport, unlike in the third embodiment, the number of SRS resources that can be configured in one SRS resource set in the embodiment of the present application is related to the maximum number of receiving antenna ports supported by the terminal device and the number of ports of each SRS resource. The port index number of SRS resources indicated by the SRI domain is smaller than or equal to the number of the maximum transmitting antenna ports supported by the terminal equipment.

Illustratively, the number of ports for all SRS resources in the SRS resource set to add up is equal to the maximum number of receive antenna ports supported by the terminal.

Illustratively, as shown in fig. 14, the maximum number of receiving antenna ports supported by the terminal device is 6, and the maximum number of transmitting antenna ports is 2. 3 SRS resources are configured in the SRS resource set, and each SRS resource may be transmitted on 2 transmit antenna ports. The transmit antenna ports of all SRS resources configured in the SRS resource set include a first transmit antenna port 1101 corresponding to the first SRS resource, a second transmit antenna port 1102 corresponding to the first SRS resource, a third transmit antenna port 1103 corresponding to the second SRS resource, a fourth transmit antenna port 1104 corresponding to the second SRS resource, a fifth transmit antenna port 1105 corresponding to the third SRS resource, and a sixth transmit antenna port 1106 corresponding to the third SRS resource. The SRI field may indicate SRS resources and their port index, e.g., the SRI field may select a portion of the ports from the 6 transmit antenna ports described above as transmit antenna ports for PUSCH transmissions. For example, the SRI field may indicate a second transmit antenna port 1102 corresponding to the first SRS resource and a third transmit antenna port 1103 corresponding to the second SRS resource, and then the second transmit antenna port 1102 and the third transmit antenna port 1103 may be used as transmit antenna ports used when the terminal transmits PUSCH.

The specific implementation manner of the same parts of the fourth embodiment and the third embodiment of the present application is consistent with the implementation manner and the achieved technical effects described in the first embodiment, and is not described herein again.

Illustratively, in all the above embodiments, the SRI field may be indicated in DCI or in Radio Resource Control (RRC). The RRC indication method may be applicable to transmission of a scheduling grant free PUSCH (Configured Grant PUSCH). In some embodiments, the PUSCH of the no-scheduling grant has no corresponding DCI, so the SRI may be indicated at RRC.

In summary, according to the uplink data transmission method provided by the present application, the corresponding transmitting antenna port may be determined after determining the SRS resource based on the correspondence between the SRS resource and the transmitting antenna port, and the base station may determine the transmitting antenna port corresponding to the SRS resource, so that the uplink interference problem may be effectively avoided. Meanwhile, because the SRS resource and the transmitting antenna port have a definite mapping relation, the problem of unmatched matching of the SRS resource and the transmitting antenna port is avoided.

Based on the uplink data transmission method, the application also provides electronic equipment for executing the uplink data transmission method. The following description is made with reference to examples.

Referring to fig. 15, a schematic diagram of hardware components of an electronic device according to an embodiment of the present application is shown. The electronic device may be a network device including, but not limited to, a base station, a core network element. Taking the electronic device as an example of a base station, the base station includes a processor 1410, a memory 1420, and a transceiver 1430. The processor 1410 is mainly used for baseband processing, control of a base station, etc.; the processor 1410 is typically a control center of the base station, and is configured to control the base station to perform the processing operations on the network device side in the above method embodiment. Memory 1420 is used primarily to store computer program code and data. The transceiver 1430 is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals and baseband signals; the transceiver 1430 may also be referred to generally as a transceiver module, transceiver, or transceiver circuitry, among others. A transceiver 1430 including an antenna 1433 and radio frequency circuitry (not shown) for performing radio frequency processing. Alternatively, the means for implementing the receiving function in the transceiver 1430 may be regarded as the receiver 1432 and the means for implementing the transmitting function may be regarded as the transmitter 1431, i.e. the transceiver 1430 includes the receiver 1432 and the transmitter 1431. The receiver 1432 may also be referred to as a receiving module, receiver, or receiving circuitry, and the transmitter 1431 may be referred to as a transmitting module, transmitter, or transmitting circuitry, and the like.

Processor 1410 and memory 1420 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used for reading and executing the program in the memory to realize the baseband processing function and control of the base station. If there are multiple boards, the boards can be interconnected to enhance processing power. As an alternative implementation manner, the multiple boards may share one or more processors, or the multiple boards may share one or more memories, or the multiple boards may share one or more processors at the same time.

It should be understood that fig. 15 is merely an example and not a limitation, and that the network device including the processor, memory, and transceiver described above may not rely on the structure shown in fig. 15.

Referring to fig. 16, a schematic diagram of hardware components of another electronic device according to an embodiment of the present application is shown. The electronic device may be a terminal device, which may be a terminal, including but not limited to, a mobile phone, a smart wearable device (e.g., a smart watch), and other electronic devices. Taking a cell phone as an example, the electronic device may include a processor 110, an antenna 121, an antenna 131, a mobile communication module 120, and a wireless communication module 130, an external memory interface 140, an internal memory 141, and so on.

It is to be understood that the structure illustrated in the present embodiment does not constitute a specific limitation on the electronic apparatus. In other embodiments, the electronic device may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, wherein different processing units may be separate devices or may be integrated in one or more processors.

In this embodiment of the present application, the processor 110 may receive control information of an uplink transmission channel, where the control information includes a channel sounding reference signal resource indicator SRI, where the SRI is used to indicate SRS resources from an SRS resource set; determining a transmitting antenna port for transmitting an uplink transmission channel according to the corresponding relation between SRS resources indicated by SRI and the transmitting antenna port; and transmitting the uplink transmission channel based on the transmitting antenna port of the uplink transmission channel.

The external memory interface 140 may be used to connect an external memory card, such as a Micro SD card, to enable expansion of the memory capabilities of the electronic device. The external memory card communicates with the processor 110 via an external memory interface 140 to implement data storage functions.

Internal memory 141 may be used to store computer-executable program code that includes instructions. The processor 110 executes various functional applications of the electronic device and data processing by executing instructions stored in the internal memory 141. The internal memory 141 may include a storage program area and a storage data area. The storage program area may store an application program (such as a sound playing function, an image playing function, etc.) required for at least one function of the operating system, etc. The storage data area may store data created during use of the electronic device (e.g., audio data, phonebook, etc.), and so forth. In addition, the internal memory 141 may include a high-speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (universal flash storage, UFS), and the like. The processor 110 performs various functional applications of the electronic device and data processing by executing instructions stored in the internal memory 141 and/or instructions stored in a memory provided in the processor.

The wireless communication function of the electronic device may be implemented by the antenna 121, the antenna 131, the mobile communication module 120, the wireless communication module 130, the modem processor, the baseband processor, and the like.

The antennas 121 and 131 are used to transmit and receive electromagnetic wave signals. Each antenna in the electronic device may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 121 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 120 may provide a solution for wireless communication including 2G/3G/4G/5G, etc. applied on an electronic device. The mobile communication module 120 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 120 may receive electromagnetic waves from the antenna 121, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 120 may amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 121 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 120 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 120 may be provided in the same device as at least some of the modules of the processor 110.

In addition, an operating system is run on the components. Such as iOS operating systems, android operating systems, windows operating systems, etc. Running applications may be installed on the operating system. It can be clearly understood by those skilled in the art that, for convenience and brevity, any explanation and beneficial effects of the related content in the electronic device provided above may refer to the corresponding method embodiments provided above, and are not repeated herein.

The present embodiment also provides a computer-readable storage medium comprising instructions which, when executed on an electronic device, cause the electronic device to perform the relevant method steps as described above, to implement the method of the above embodiments.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An uplink data transmission method, which is applied to a terminal device, includes:

Receiving control information of an uplink transmission channel, wherein the control information comprises a channel sounding reference Signal (SRI) resource indicator, and the SRI is used for indicating SRS resources from an SRS resource set;

determining a transmitting antenna port for transmitting the uplink transmission channel according to the corresponding relation between the SRS resource indicated by the SRI and the transmitting antenna port;

and transmitting the uplink transmission channel based on the transmitting antenna port of the uplink transmission channel.

2. The method of claim 1, wherein each SRS resource in the set of SRS resources corresponds to a transmit antenna port, and wherein the SRI is configured to indicate at least one SRS resource from the set of SRS resources.

3. The method of claim 1, wherein the determining the transmit antenna port for transmitting the uplink transmission channel according to the correspondence between the SRS resources indicated by the SRI and the transmit antenna ports comprises:

determining SRS resources indicated by the SRI according to the corresponding relation between the identification numbers indicated by the SRI and the SRS resources;

and determining the transmitting antenna port for transmitting the uplink transmission channel according to the relation between the SRS resource and the transmitting antenna port.

4. The method of claim 1, wherein each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, each transmit antenna port corresponds to a port index, the SRI indicates at least one SRS resource and a port index corresponding to each SRS resource from the SRS resource set, and the determining a transmit antenna port for transmitting the uplink transmission channel according to a correspondence between the SRS resource indicated by the SRI and a transmit antenna port comprises:

Determining a plurality of transmitting antenna ports corresponding to each SRS resource according to the corresponding relation between each SRS resource and the transmitting antenna port;

and determining the transmitting antenna port corresponding to the port index corresponding to each SRS resource as the transmitting antenna port for transmitting the uplink transmission channel from the transmitting antenna ports corresponding to each SRS resource according to the port index corresponding to each SRS resource.

5. The method of claim 4, wherein a sum of numbers of port indexes corresponding to all SRS resources indicated by the SRI is equal to a number of transmit antenna ports transmitting the uplink transmission channel.

6. A method according to any one of claims 1-3, wherein each SRS resource in the SRS resource set corresponds to a transmit antenna port, and the number of SRS resources configured in the SRS resource set is less than or equal to the maximum number of transmit antenna ports supported by the terminal device.

7. A method according to any one of claims 1-3, wherein each SRS resource in the SRS resource set corresponds to a transmitting antenna port, the number of maximum transmitting antenna ports supported by the terminal device is less than or equal to the number of maximum receiving antenna ports, and the number of SRS resources configured in the SRS resource set is less than or equal to the number of maximum receiving antenna ports.

8. The method according to any one of claims 3-5, wherein each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, and a sum of numbers of transmit antenna ports corresponding to all SRS resources configured in the SRS resource set is less than or equal to a maximum number of transmit antenna ports supported by the terminal device.

9. The method according to any one of claims 3-5, wherein each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, a maximum number of transmit antenna ports supported by a terminal device is smaller than a maximum number of receive antenna ports, and a sum of numbers of transmit antenna ports corresponding to all SRS resources configured in the SRS resource set is smaller than or equal to the maximum number of receive antenna ports.

10. The method of claim 1, further comprising, after receiving the control information of the uplink transmission channel:

and determining SRS resources used for determining power control parameters transmitted by an uplink transmission channel from at least one SRS resource indicated by the SRI.

11. The method of claim 10, wherein each SRS resource corresponds to an identifier, wherein the determining SRS resources for determining power control parameters for uplink transmission channel transmission from at least one SRS resource indicated by the SRI comprises:

And determining the SRS resource with the minimum identification number from at least one SRS resource indicated by the SRI as the SRS resource for determining the power control parameter transmitted by the uplink transmission channel.

12. The method of claim 1, further comprising, after receiving the control information of the uplink transmission channel:

and determining SRS resources used for determining spatial filtering parameters transmitted by an uplink transmission channel from at least one SRS resource indicated by the SRI.

13. The method of claim 12, wherein each SRS resource corresponds to an identifier, wherein the determining SRS resources for determining spatial filtering parameters for uplink transmission channel transmission from at least one SRS resource indicated by the SRI comprises:

and determining the SRS resource with the minimum identification number from at least one SRS resource indicated by the SRI as the SRS resource for determining the spatial filtering parameter of the uplink transmission channel transmission.

14. An uplink data transmission method, which is applied to a network device, includes:

transmitting control information of an uplink transmission channel, wherein the control information comprises a channel sounding reference Signal (SRI) resource indicator, and the SRI is used for indicating SRS resources from an SRS resource set;

And receiving the uplink transmission channel based on the transmitting antenna port of the uplink transmission channel, wherein the transmitting antenna port of the uplink transmission channel is determined according to the corresponding relation between SRS resources indicated by the SRI and the transmitting antenna port.

15. The method of claim 14, wherein each SRS resource in the set of SRS resources corresponds to a transmit antenna port, and wherein the SRI is configured to indicate at least one SRS resource from the set of SRS resources.

16. The method of claim 14, wherein the SRI indicates an identification number corresponding to SRS resources, the identification number being used to determine SRS resources.

17. The method of claim 16, wherein each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, each transmit antenna port corresponds to a port index, and the SRI indicates at least one SRS resource and the port index corresponding to each SRS resource from the SRS resource set.

18. The method of claim 17, wherein a sum of numbers of port indexes corresponding to all SRS resources indicated by the SRI is equal to a number of transmit antenna ports transmitting the uplink transmission channel.

19. The method according to any of claims 14-16, wherein each SRS resource in the SRS resource set corresponds to a transmit antenna port, and the number of SRS resources configured in the SRS resource set is less than or equal to the maximum number of transmit antenna ports supported by the terminal device.

20. The method according to any one of claims 14-16, wherein each SRS resource in the SRS resource set corresponds to a transmitting antenna port, a maximum number of transmitting antenna ports supported by the terminal device is less than or equal to a maximum number of receiving antenna ports, and a number of SRS resources configured in the SRS resource set is less than or equal to the maximum number of receiving antenna ports.

21. The method according to any of claims 16-18, wherein each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, and a sum of numbers of transmit antenna ports corresponding to all SRS resources configured in the SRS resource set is less than or equal to a maximum number of transmit antenna ports supported by the terminal device.

22. The method according to any one of claims 16-18, wherein each SRS resource in the SRS resource set corresponds to a plurality of transmit antenna ports, a maximum number of transmit antenna ports supported by a terminal device is smaller than a maximum number of receive antenna ports, and a sum of numbers of transmit antenna ports corresponding to all SRS resources configured in the SRS resource set is smaller than or equal to the maximum number of receive antenna ports.

23. An electronic device, the electronic device comprising: a processor and a memory;

the memory is used for storing program codes and transmitting the program codes to the processor;

the processor is configured to perform the steps of an uplink data transmission method according to any of claims 1-22 according to instructions in the program code.

24. A computer readable storage medium, characterized in that the computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of an uplink data transmission method according to any of claims 1-22.