Communication method and apparatus

Abstract

The present application provides a communication method and apparatus. The method includes: A terminal device determines target time-frequency resources for transmitting an uplink sounding reference signal (SRS) and a physical uplink shared channel (PUSCH) within an uplink communication time period of a target subframe. The terminal device performs uplink communication on the target time-frequency resources and simultaneously sends the uplink SRS and the PUSCH to a network device. Among them, by multiplexing the uplink SRS and the PUSCH on the same symbol, it can be ensured that the uplink SRS and the PUSCH are transmitted on the same symbol (such as the same time-frequency resource), achieving the transmission of the PUSCH even when the uplink SRS is configured to be transmitted on the UpPTS of the S subframe, improving the utilization rate of resources within the uplink communication time period of the target subframe, and thus increasing the throughput of the network.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication method and apparatus. Background Art

[0002] In a communication system, there is a special subframe (S subframe). Specifically, the S subframe includes a downlink pilot time slot (DwPTS), a guard period (GP), and an uplink pilot time slot (UpPTS). Among them, the UpPTS can transmit a sounding reference signal (SRS) and a physical uplink shared channel (PUSCH).

[0003] If there are basically no spare symbols in the UpPTS of the S subframe except for the symbols configured for transmitting the uplink SRS, then the S subframe cannot transmit the PUSCH. Summary of the Invention

[0004] Embodiments of this application provide a communication method and apparatus, which enable the uplink SRS and the PUSCH to reuse the same time-frequency resource, improve the utilization rate of resources during the uplink communication period in the target subframe, and thus increase the network throughput.

[0005] In a first aspect, embodiments of this application provide a communication method, including:

[0006] The terminal device determines the target time-frequency resource during the uplink communication period in the target subframe, and the target time-frequency resource is used to transmit the uplink SRS and the PUSCH;

[0007] The terminal device simultaneously sends the uplink SRS and the PUSCH to the network device on the target time-frequency resource;

[0008] Wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

[0009] In a possible implementation manner, before the terminal device simultaneously sends the uplink SRS and the PUSCH to the network device on the target symbol, the terminal device receives first information from the network device, and the first information is used to indicate that the uplink SRS and the PUSCH are transmitted on the same time-frequency resource in the target subframe.

[0010] In a possible implementation, the terminal device receives second information from the network device, and the second information is used to indicate the target time-frequency resource.

[0011] In a possible implementation, the target subframe is an S subframe.

[0012] In a second aspect, an embodiment of the present application provides a communication method, including:

[0013] The network device simultaneously receives an uplink SRS and a PUSCH from the terminal device on a target time-frequency resource within an uplink communication time period in a target subframe, where the target time-frequency resource is used for transmitting the uplink SRS and the PUSCH;

[0014] The network device processes the uplink SRS and the PUSCH;

[0015] Wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

[0016] In a possible implementation, the network device sends first information to the terminal device, and the first information is used to indicate that the uplink SRS and the PUSCH are transmitted on the same time-frequency resource in the target subframe.

[0017] In a possible implementation, the network device sends second information to the terminal device, and the second information is used to indicate the target time-frequency resource.

[0018] In a third aspect, an embodiment of the present application provides a communication device, including:

[0019] A processing module, configured to determine a target time-frequency resource within an uplink communication time period in a target subframe, where the target time-frequency resource is used for transmitting an uplink SRS and a PUSCH;

[0020] A transceiver module, configured to simultaneously send the uplink SRS and the PUSCH to the network device on the target time-frequency resource;

[0021] Wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

[0022] In a possible implementation, the transceiver module is further configured to receive first information from the network device before simultaneously sending the uplink SRS and the PUSCH to the network device on the target symbol, where the first information is used to indicate that the uplink SRS and the PUSCH are transmitted on the same time-frequency resource in the target subframe.

[0023] In a possible implementation, the transceiver module is further configured to receive second information from the network device, where the second information is used to indicate the target time-frequency resource.

[0024] Fourthly, an embodiment of the present application provides a communication device, including:

[0025] A transceiver module, configured to simultaneously receive an uplink SRS and a PUSCH from a terminal device on a target time-frequency resource within an uplink communication time period in a target subframe, where the target time-frequency resource is used for transmitting the uplink SRS and the PUSCH;

[0026] A processing module, configured to process the uplink SRS and the PUSCH;

[0027] Wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

[0028] In a possible implementation, the transceiver module is further configured to send first information to the terminal device, where the first information is used to indicate that the uplink SRS and the PUSCH are transmitted on the same time-frequency resource in the target subframe.

[0029] In a possible implementation, the transceiver module is further configured to send second information to the terminal device, where the second information is used to indicate the target time-frequency resource.

[0030] Fifthly, an embodiment of the present application provides a communication device, including:

[0031] A module, component or circuit for implementing the communication method of the first aspect; or,

[0032] A module, component or circuit for implementing the communication method of the second aspect.

[0033] Sixthly, an embodiment of the present application provides a communication device, including a memory, a processor and a transceiver;

[0034] The memory is used to store program instructions;

[0035] The transceiver is configured to send and receive data under the control of the processor;

[0036] The processor is configured to call the program instructions in the memory to execute the communication method described in the first aspect or the communication method described in the second aspect.

[0037] In a seventh aspect, an embodiment of the present application provides a chip, including at least one processor and a communication interface. The communication interface and the at least one processor are interconnected by a line. The at least one processor is configured to run a computer program or instruction to perform the communication method described in the first aspect or the communication method described in the second aspect.

[0038] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, including instructions that, when running on a computer, cause the computer to execute the communication method described in the first aspect or the communication method described in the second aspect.

[0039] In a ninth aspect, an embodiment of the present application provides a computer program product containing instructions that, when running on a computer, cause the computer to execute the communication method described in the first aspect above or the communication method described in the second aspect.

[0040] In a tenth aspect, an embodiment of the present application provides a communication system, including a terminal device described in any one of the above and a network device described in any one of the above.

[0041] Combined with any one of the first to tenth aspects described above, it may further include the following:

[0042] Optionally, the target time-frequency resource occupies all symbols in the uplink communication time period of the target subframe in the time domain.

[0043] Optionally, the symbols occupied by the target time-frequency resource include a first symbol and a second symbol. The first symbol includes at least one symbol, and the second symbol includes at least one symbol;

[0044] Part of the frequency-domain resources in the first symbol are used to transmit the uplink SRS and the PUSCH, and all the frequency-domain resources in the second symbol are used to transmit the uplink SRS and the PUSCH.

[0045] Optionally, another part of the frequency-domain resources in the first symbol are used to transmit the demodulation reference signal DMRS of the PUSCH.

[0046] Optionally, each resource element RE in the part of the frequency-domain resources is spaced apart from each RE in the other part of the frequency-domain resources.

[0047] Optionally, the first symbol is the first symbol in the uplink communication time period of the target subframe.

[0048] Optionally, the target time-frequency resource is all the frequency-domain resources of all symbols in the uplink communication time period of the target subframe.

[0049] Optionally, the target time-frequency resource occupies some symbols in the uplink communication time period of the target subframe in the time domain.

[0050] Optionally, other symbols in the uplink communication time period of the target subframe except the symbols occupied by the target time-frequency resource are used to transmit the Demodulation Reference Signal (DMRS) of the PUSCH.

[0051] Optionally, the symbols occupied by the target time-frequency resource are symbols in the uplink communication time period of the target subframe except the first symbol.

[0052] In summary, in the communication method and device provided by the embodiments of the present application, by multiplexing the uplink SRS and PUSCH on the same symbol, it can be ensured that the uplink SRS and PUSCH are transmitted on the same symbol (such as the same time-frequency resource), realizing the situation where the uplink SRS is configured to be transmitted on the UpPTS of the S subframe, and the PUSCH can also be transmitted, improving the utilization rate of resources in the uplink communication time period of the target subframe, thereby improving the throughput of the network. Description of the Drawings

[0053] Figure 1 It is a schematic diagram of the communication system provided by the embodiments of the present application;

[0054] Figure 2 It is a schematic diagram of the protocol stack of the network device provided by the embodiments of the present application;

[0055] Figure 3 It is a flowchart of the communication method provided by an embodiment of the present application;

[0056] Figure 4 It is a schematic diagram of a target subframe provided by an embodiment of the present application;

[0057] Figure 5 It is a schematic diagram of the uplink and downlink subframe ratio of 8:2 provided by an embodiment of the present application;

[0058] Figure 6 It is a schematic diagram of the uplink and downlink subframe ratio of 4:1 provided by an embodiment of the present application;

[0059] Figure 7 It is a schematic diagram of the uplink and downlink subframe ratio of 7:3 provided by an embodiment of the present application;

[0060] Figure 8 It is a flowchart of the communication method provided by another embodiment of the present application;

[0061] Figure 9a and Figure 9bSchematic diagram of multiplexing of uplink SRS and PUSCH in an S subframe provided by an embodiment of the present application;

[0062] Figure 10a and Figure 10b Schematic diagram of multiplexing of uplink SRS and PUSCH in an S subframe provided by another embodiment of the present application;

[0063] Figure 11a and Figure 11b Schematic diagram of multiplexing of uplink SRS and PUSCH in an S subframe provided by another embodiment of the present application;

[0064] Figure 12 Schematic diagram of the structure of a communication device provided by an embodiment of the present application;

[0065] Figure 13 Schematic diagram of the structure of a communication device provided by another embodiment of the present application;

[0066] Figure 14 Schematic diagram of the structure of a communication device provided by another embodiment of the present application;

[0067] Figure 15 Schematic diagram of the structure of a terminal device provided by an embodiment of the present application;

[0068] Figure 16 Schematic diagram of the structure of a communication system provided by an embodiment of the present application. Detailed implementation manners

[0069] Figure 1 Schematic diagram of the communication system provided by the embodiment of the present application. As Figure 1 shown, the communication system includes a network device and a terminal device.

[0070] Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art:

[0071] Network device: Also known as a Radio Access Network (RAN) device, it is a device that connects a terminal device to a wireless network. It can be an Evolutional Node B (eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point, or a base station in a 5G network, such as a Transmission and Reception Point (TRP), a controller, which is not limited herein. In a possible manner, the access network device can be a base station with a split architecture of a Central Unit (CU) and a Distributed Unit (DU) (such as a gNB). As Figure 2 shown, Figure 2This is a schematic diagram of the protocol stack of the network device provided by the embodiments of this application. The RAN device can be connected to the core network device (for example, it can be the core network of LTE or the core network of 5G, etc.). The CU and DU can be understood as the division of the base station from the perspective of logical functions. The CU and DU can be physically separated or deployed together. Multiple DUs can share one CU. One DU can also be connected to multiple CUs (not shown in the figure). The CU and DU can be connected through an interface, such as the F1 interface. The CU and DU can be divided according to the protocol layers of the wireless network. For example, the functions of the Radio Resource Control (RRC), Service Data Adaptation Protocol (SDAP), and packet data convergence protocol (PDCP) layers are set in the CU, while the functions of the radio link control (RLC), Media Access Control (MAC) layer, physical (PHY) layer, etc. are set in the DU. It can be understood that the division of the processing functions of the CU and DU according to this protocol layer is only an example, and it can also be divided in other ways. For example, the CU or DU can be divided into functions with more protocol layers. For example, the CU or DU can also be divided into partial processing functions of the protocol layer. In one design, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU. In another design, the functions of the CU or DU can also be divided according to the service type or other system requirements. For example, in terms of latency division, the functions that need to meet the latency requirements are set in the DU, and the functions that do not need to meet the latency requirements are set in the CU. In another design, the CU can also have one or more functions of the core network. One or more CUs can be centrally set or separated. For example, the CU can be set on the network side for convenient centralized management. The DU can have multiple radio frequency functions, or the radio frequency functions can be remotely set.

[0072] The functions of the CU can be implemented by one entity or different entities. For example, the functions of the CU can be further split. For example, the control plane (CP) and the user plane (UP) can be separated, that is, the control plane (CU-CP) and the user plane (CU-UP) of the CU. For example, the CU-CP and the CU-UP can be implemented by different functional entities, and the CU-CP and the CU-UP can be coupled with the DU to jointly complete the functions of the base station. In one possible way, the CU-CP is responsible for the control plane functions, mainly including RRC and PDCP-C. PDCP-C is mainly responsible for encryption, decryption, integrity protection, data transmission, etc. of the control plane data. The CU-UP is responsible for the user plane functions, mainly including SDAP and PDCP-U. Among them, SDAP is mainly responsible for processing the data of the core network and mapping the data flow to the bearer. PDCP-U is mainly responsible for encryption, decryption, integrity protection, header compression, sequence number maintenance, data transmission, etc. of the data plane. Among them, the CU-CP and the CU-UP are connected through the E1 interface. The CU-CP represents the gNB and is connected to the core network through the Ng interface. It is connected to the DU through F1-C (control plane). The CU-UP is connected to the DU through F1-U (user plane). Of course, there is also a possible implementation where PDCP-C is also in the CU-UP.

[0073] Terminal device: It can be a wireless terminal device or a wired terminal device. A wireless terminal device can refer to a device with wireless transceiver functions, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (such as an airplane, a balloon, a satellite, etc.). The terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc., which is not limited here. It can be understood that in the embodiments of the present application, the terminal device can also be referred to as a user equipment (UE).

[0074] The network device can send downlink information to the terminal device during the downlink communication period, and the terminal device can send uplink information to the network device during the uplink communication period. The downlink communication period includes downlink subframes and DwPTS in the S subframe, and the uplink communication period includes uplink subframes and UpPTS in the S subframe. Among them, the terminal device can send uplink SRS to the network device in the UpPTS of the S subframe, and the terminal device can also send PUSCH to the network device in the UpPTS of the S subframe.

[0075] Since currently, if there are basically no spare symbols in the UpPTS of the S subframe except for the symbols configured for transmitting uplink SRS, then this S subframe cannot transmit PUSCH. Therefore, the present application provides a communication method and apparatus, by multiplexing uplink SRS and PUSCH on the same symbol, so as to ensure that uplink SRS and PUSCH are transmitted on the same symbol (such as the same time-frequency resource), and realize that when configuring to transmit uplink SRS on the UpPTS of the S subframe, PUSCH can also be transmitted.

[0076] Figure 3 It is a flowchart of the communication method provided by an embodiment of the present application. As Figure 3 shown, the method of this embodiment may include:

[0077] S301. The terminal device determines the target time-frequency resource in the uplink communication period of the target subframe. The target time-frequency resource is used to transmit uplink SRS and PUSCH.

[0078] The target subframe in this embodiment includes a downlink communication period, a guard period (GP), and an uplink communication period. For example, as Figure 4 shown. The GP is located between the downlink communication period and the uplink communication period, and is used to isolate the downlink communication period and the uplink communication period. Among them, the subframe includes multiple orthogonal frequency division multiplexing (OFDM) symbols in the time domain, for example, 14 OFDM symbols. The downlink communication period can be X OFDM symbols in the subframe, the GP can be Y OFDM symbols in the subframe, and the uplink communication period can be Z OFDM symbols in the subframe. X, Y, and Z in this embodiment are integers greater than 0.

[0079] In a possible implementation manner, the above target subframe may be a special subframe (S subframe).

[0080] In this embodiment, the number of symbols in the uplink communication time period for uplink transmission is variable, that is, the above-mentioned Z is variable, and the length of Z is affected by the uplink-downlink subframe ratio in the NR protocol. Therefore, in this embodiment, the length of Z can be determined according to the uplink-downlink subframe ratio in a frame. For example, when the uplink-downlink subframe ratio is 8:2, as Figure 5 shown, at this time, the ratio of the number of downlink symbols, guard interval symbols, and uplink symbols in the target subframe (such as the S subframe) is 6:4:4. Correspondingly, the length of the uplink communication time period is 4 symbols; when the uplink-downlink subframe ratio is 4:1 (as Figure 6 shown) or 7:3 (as Figure 7 shown), at this time, the ratio of the number of downlink symbols, guard interval symbols, and uplink symbols in the S subframe is 10:2:2, and the length of the uplink communication time period is 2 symbols. Among them, the above Figures 5 - 7 is shown by taking one subframe including one time slot as an example, but this embodiment is not limited thereto.

[0081] In this embodiment, the terminal device determines the time-frequency resources for transmitting the uplink SRS and PUSCH within the uplink communication time period in the above-mentioned target subframe, and this time-frequency resource is called the target time-frequency resource. Among them, this target time-frequency resource occupies at least one symbol in the time domain, indicating that the terminal device simultaneously sends the uplink SRS and PUSCH through at least one symbol within the uplink communication time period.

[0082] S302. The terminal device simultaneously sends the uplink SRS and PUSCH to the network device on the target time-frequency resource. Correspondingly, the network device simultaneously receives the uplink SRS and PUSCH from the terminal device on the target time-domain resource within the uplink communication time period in the target subframe.

[0083] After determining the target time-frequency resource within the uplink communication time period in the target subframe, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on this target time-frequency resource. Among them, the simultaneously sent uplink SRS and PUSCH occupy the same time-frequency resource, indicating that the uplink SRS occupies the target time-frequency resource, and the PUSCH also occupies this target time-frequency resource. Correspondingly, the network device simultaneously receives the uplink SRS and PUSCH from the terminal device on the target time-frequency resource within the uplink communication time period in the target subframe.

[0084] S303. The network device processes the uplink SRS and PUSCH.

[0085] After the network device simultaneously receives the uplink SRS and PUSCH on the target time-frequency resource, it processes the uplink SRS and PUSCH. Among them, the uplink SRS is used for uplink channel estimation, and the network device can perform uplink channel estimation based on the uplink SRS. The PUSCH is used to carry the uplink data sent by the terminal device to the network device. The network device obtains the uplink data from the terminal device based on the PUSCH, and then performs corresponding processing according to the uplink data. The specific implementation process described above can be referred to the description in the related art and will not be elaborated here.

[0086] Optionally, during the process of the network device simultaneously receiving the uplink SRS and PUSCH on the target time-frequency resource, the network device can use an IRC receiver on the target time-frequency resource to receive the PUSCH from the terminal device to perform interference suppression and avoid the interference caused by the uplink SRS and PUSCH being transmitted on the same time-frequency resource.

[0087] The communication method provided in this embodiment enables the terminal device to determine the target time-frequency resource for simultaneously transmitting the uplink SRS and PUSCH within the uplink communication time period of the target subframe, and then simultaneously send the uplink SRS and PUSCH to the network device on the target time-frequency resource. It realizes that the uplink SRS and PUSCH can reuse the same time-frequency resource, so that when there are basically no idle resources when scheduling the uplink SRS in the target subframe, the PUSCH can also be scheduled for transmission, improving the utilization rate of resources within the uplink communication time period of the target subframe, thereby increasing the network throughput.

[0088] Figure 8 It is a flowchart of the communication method provided in another embodiment of this application. As Figure 8 shown, in this embodiment, the method uses the target subframe as the S subframe, and this embodiment is not limited thereto. The method of this embodiment may include:

[0089] S801. The network device sends the first information to the terminal device. Correspondingly, the terminal device receives the first information from the network device.

[0090] In this embodiment, after the network device determines that the terminal device needs to reuse the same time-frequency resource to transmit the uplink SRS and PUSCH, the network device sends the first information to the terminal device. The first information is used to indicate that the uplink SRS and PUSCH are transmitted on the same time-frequency resource within the uplink communication time period of the S subframe. Correspondingly, the terminal device receives the first information from the network device and can determine that the uplink SRS and PUSCH can be transmitted on the same time-frequency resource within the uplink communication time period of the S subframe. Optionally, the first information is included in the RRC reconfiguration message sent by the network device to the terminal device.

[0091] In a possible implementation, if the network device determines that the terminal device is an uplink network pulling user, the network device determines that the terminal device needs to multiplex the uplink SRS and PUSCH to transmit on the same time-frequency resource, and then sends the first information to the terminal device. For example, the L2 layer of the network device identifies whether the terminal device is an uplink network pulling user, and the L2 layer periodically transmits the status of whether the terminal device is an uplink network pulling user to the L3 layer of the network device. The L3 layer triggers the simultaneous scheduling of the uplink SRS and PUSCH in the S subframe, that is, the network device sends the first information to the terminal device. An uplink network pulling user may refer to a user that occupies the full bandwidth and is scheduled very frequently.

[0092] Optionally, the method of this embodiment executes S803 after executing S801, or the following S802 may also be executed before executing S803.

[0093] S802: The network device sends the second information to the terminal device. Correspondingly, the terminal device receives the second information from the network device.

[0094] The network device may determine the target time-frequency resource for simultaneously transmitting the uplink SRS and PUSCH during the uplink communication time in the S subframe, and then send the second information to the terminal device. The second information is used to indicate the target time-frequency resource (specifically, the time domain position and frequency domain position of the target time-frequency resource). Correspondingly, the terminal device receives the second information from the network device.

[0095] Optionally, the network device may send the first information and the second information to the terminal device in the same message. Or, the network device may send the first information and the second information to the terminal device in different messages respectively.

[0096] Optionally, the second information is included in the RRC reconfiguration message sent by the network device to the terminal device.

[0097] S803: The terminal device determines the target time-frequency resource during the uplink communication time period in the S subframe.

[0098] In this embodiment, after receiving the first information, the terminal device determines the target time-frequency resource during the uplink communication time period in the S subframe.

[0099] Optionally, if the terminal device receives the second information from the network device, the terminal device determines the target time-frequency resource during the uplink communication time period in the S subframe according to the second information.

[0100] S804: The terminal device simultaneously sends the uplink SRS and PUSCH to the network device on the target time-frequency resource. Correspondingly, the network device simultaneously receives the uplink SRS and PUSCH from the terminal device on the target time domain resource during the uplink communication time period in the S subframe.

[0101] The S805 network device processes the uplink SRS and PUSCH.

[0102] In this embodiment, the specific implementation processes of S804 and S805 can be referred to Figure 3 the relevant descriptions in the illustrated embodiments, which will not be elaborated here.

[0103] For the communication method provided in this embodiment, the network device instructs the terminal device to simultaneously transmit the uplink SRS and PUSCH on the target time-frequency resources during the uplink communication time period in the S subframe. Then, the terminal device simultaneously transmits the uplink SRS and PUSCH to the network device on the target time-frequency resources. This realizes that the uplink SRS and PUSCH can reuse the same time-frequency resources, enabling the scheduling of the transmission of PUSCH even when there are basically no idle resources during the scheduling of the uplink SRS in the target subframe, improving the utilization rate of resources during the uplink communication time period in the target subframe, and thus enhancing the network throughput.

[0104] In the above Figure 3 or Figure 8 Based on the illustrated embodiments, in some embodiments, the above-mentioned target time-frequency resources occupy all symbols in the uplink communication time period of the S subframe in the time domain. This means that each symbol in the uplink communication time period of the S subframe can be used to transmit the uplink SRS and PUSCH. If the ratio of the uplink and downlink subframes is 8:2, the target time-frequency resources occupy symbols 10 - 13 of the S subframe in the time domain. If the ratio of the uplink and downlink subframes is 4:1 or 7:3, the target time-frequency resources occupy symbols 12 - 13 of the S subframe in the time domain.

[0105] In a possible implementation, the target time-frequency resources occupying all symbols in the uplink communication time period of the S subframe include a first symbol and a second symbol, and the first symbol includes at least one symbol, and the second symbol includes at least one symbol. Part of the frequency-domain resources in the first symbol are used to transmit the uplink SRS and PUSCH, and all the frequency-domain resources in the second symbol are used to transmit the uplink SRS and PUSCH. This indicates that all the frequency-domain resources in a part of the symbols in the uplink communication time period of the S subframe are used to simultaneously transmit the uplink SRS and PUSCH, while not all the frequency-domain resources in another part of the symbols are used to simultaneously transmit the uplink SRS and PUSCH. In fact, part of the frequency-domain resources in another part of the symbols are used to simultaneously transmit the uplink SRS and PUSCH.

[0106] Optionally, the first symbol is the first symbol in the uplink communication time period of the S subframe.

[0107] If the ratio of uplink and downlink subframes is 8:2, the first symbol is symbol 10 of the S subframe, and the second symbol is symbols 11 - 13. That is, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on a partial frequency-domain resource of symbol 10, and simultaneously sends the uplink SRS and PUSCH to the network device on all frequency-domain resources of symbols 11 - 13.

[0108] If the ratio of uplink and downlink subframes is 4:1 or 7:3, the first symbol is symbol 12 of the S subframe, and the second symbol is symbol 13. That is, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on a partial frequency-domain resource of symbol 12, and simultaneously sends the uplink SRS and PUSCH to the network device on all frequency-domain resources of symbol 13.

[0109] Optionally, another part of the frequency-domain resource in the above first symbol is used to transmit the DMRS of the PUSCH, so that the network device performs uplink channel estimation according to the received DMRS from the terminal device. If the ratio of uplink and downlink subframes is 8:2, the first symbol is symbol 10 of the S subframe. That is, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on a partial frequency-domain resource of symbol 10, and sends the DMRS to the network device on another part of the frequency-domain resource of symbol 10. If the ratio of uplink and downlink subframes is 4:1 or 7:3, the first symbol is symbol 12 of the S subframe. That is, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on a partial frequency-domain resource of symbol 12, and sends the DMRS to the network device on another part of the frequency-domain resource of symbol 12.

[0110] Optionally, the partial frequency-domain resource for simultaneously transmitting the uplink SRS and PUSCH and the remaining another part of the frequency-domain resource in the above first symbol are interleaved in the first symbol.

[0111] In a possible implementation, in the first symbol, each RE of the partial frequency-domain resource for simultaneously transmitting the uplink SRS and PUSCH and each RE of the remaining another part of the frequency-domain resource are interleaved in an alternating manner. If the ratio of uplink and downlink subframes is 8:2, the REs for transmitting the uplink SRS and PUSCH and the REs for transmitting the DMRS are interleaved in symbol 10 of the S subframe, as Figure 9a shown. By adopting this scheme, a gain of 3.5 / 24 can be achieved. If the ratio of uplink and downlink subframes is 4:1 or 7:3, the REs for transmitting the uplink SRS and PUSCH and the REs for transmitting the DMRS are interleaved in symbol 12 of the S subframe, as Figure 9b shown. By adopting this scheme, a gain of 1.5 / 12 can be achieved in the 4:1 ratio, and a gain of 3 / 36 can be achieved in the 7:3 ratio.

[0112] In another possible implementation, in the first symbol, every two resource elements (REs) of the partial frequency-domain resources for simultaneously transmitting uplink sounding reference signal (SRS) and physical uplink shared channel (PUSCH) are interleaved with every two REs of the remaining other part of the frequency-domain resources.

[0113] In another possible implementation scenario, the target time-frequency resources are all the frequency-domain resources of all symbols in the uplink communication time period of the S subframe.

[0114] If the uplink-downlink subframe ratio is 8:2, the target time-frequency resources are all the frequency-domain resources of symbols 10 - 13 of the S subframe. That is, the terminal device simultaneously sends uplink SRS and PUSCH to the network device on all the frequency-domain resources of symbols 10 - 13 of the S subframe, as Figure 10a shown. By adopting this scheme, a gain of 4 / 24 can be achieved. If the uplink-downlink subframe ratio is 4:1 or 7:3, the target time-frequency resources are all the frequency-domain resources of symbols 12 - 13 of the S subframe, as Figure 10b shown. By adopting this scheme, a gain of 2 / 12 can be achieved in the 4:1 ratio, and a gain of 4 / 36 can be achieved in the 7:3 ratio.

[0115] Optionally, the terminal device does not send demodulation reference signal (DMRS) to the network device on this S subframe, but sends DMRS on the subsequent uplink subframe for the network device to perform uplink channel estimation.

[0116] Based on the above Figure 3 or Figure 8 shown embodiments, in some other embodiments, the target time-frequency resources occupy some symbols in the uplink communication time period of the S subframe in the time domain. This means that not all symbols in the uplink communication time period of the S subframe can be used to transmit uplink SRS and PUSCH. If the uplink-downlink subframe ratio is 8:2, the target time-frequency resources occupy some symbols among symbols 10 - 13 of the S subframe in the time domain. If the uplink-downlink subframe ratio is 4:1 or 7:3, the target time-frequency resources occupy some symbols among symbols 12 - 13 of the S subframe in the time domain.

[0117] Optionally, the symbols in the uplink communication time period of the S subframe other than the symbols occupied by the target time-frequency resource are used to transmit the DMRS of the PUSCH. If the uplink-downlink subframe ratio is 8:2, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on some of the symbols in symbols 10-13 of the S subframe, and sends the DMRS to the network device on the other symbols in symbols 10-13. If the uplink-downlink subframe ratio is 4:1 or 7:3, the terminal device simultaneously sends the uplink SRS and PUSCH to the network device on some of the symbols in symbols 12-13 of the S subframe, and sends the DMRS to the network device on the other symbols in symbols 12-13.

[0118] Optionally, the symbol occupied by the target time-frequency resource is the symbol in the uplink communication time period of the S subframe other than the first symbol.

[0119] If the uplink-downlink subframe ratio is 8:2, the target time-frequency resource is all the frequency-domain resources of symbols 11-13 of the S subframe. That is, the terminal device sends the DMRS to the network device on all the frequency-domain resources of symbol 10 of the S subframe, and simultaneously sends the uplink SRS and PUSCH to the network device on all the frequency-domain resources of symbols 11-13, as Figure 11a shown. By adopting this scheme, a gain of 3 / 24 can be achieved. If the uplink-downlink subframe ratio is 4:1 or 7:3, the target time-frequency resource is all the frequency-domain resources of symbol 13 of the S subframe. That is, the terminal device sends the DMRS to the network device on all the frequency-domain resources of symbol 12 of the S subframe, and simultaneously sends the uplink SRS and PUSCH to the network device on all the frequency-domain resources of symbol 13, as Figure 11b shown. By adopting this scheme, a gain of 1 / 12 can be achieved in the 4:1 ratio, and a gain of 2 / 36 can be achieved in the 7:3 ratio.

[0120] It should be noted that all the frequency-domain resources in the above-mentioned symbols may refer to all the frequency-domain resources allocated to the terminal device in the symbols.

[0121] In specific implementation, the above embodiments of the present application can be applied to the following scenarios, but are not limited thereto:

[0122] When a user uses a terminal device to make a voice call or a video call, or send a file with a large amount of data to the peer end, the terminal device may carry the uplink data in the PUSCH. A part of the PUSCH is transmitted through an uplink subframe (see the description in the related art), and another part of the PUSCH is transmitted by adopting the solutions of the foregoing embodiments of the present application. The other part of the PUSCH and the uplink SRS are multiplexed and transmitted on the same time-frequency resource of the foregoing target subframe (such as the S subframe). Therefore, the terminal device can transmit a larger amount of data within one frame, improving the transmission efficiency of the uplink data of the terminal device and enhancing the user experience.

[0123] In a possible example, when the network device determines that the uplink data volume of the terminal device is large, the network device may schedule the S subframe to transmit a part of the uplink data of the terminal device. For example, the network device sends an RRC reconfiguration message to the terminal device. The SLIV in the RRC reconfiguration message adds a time-domain scheduling table entry, and this table entry indicates to schedule the S subframe to transmit the PUSCH. After receiving the RRC reconfiguration message from the network device, the terminal device returns an RRC reconfiguration complete message to the network device, and then executes the solutions of the foregoing embodiments according to the indication of the SLIV added time-domain scheduling table entry in the RRC reconfiguration message.

[0124] In some other embodiments, the uplink SRS and PUSCH multiplexed on the same time-frequency resource of the target subframe (such as the S subframe) come from different terminal devices. For example, terminal device 1 sends the uplink SRS on the target time-frequency resource of the target subframe (such as the S subframe), and terminal device 2 sends the PUSCH on the target time-frequency resource of the target subframe. Correspondingly, the network device receives the uplink SRS and PUSCH on the target time-frequency resource of the target subframe, where the uplink SRS comes from terminal device 1 and the PUSCH comes from terminal device 2. Optionally, the network device also sends indication information for indicating the transmission of the uplink SRS in the S subframe to terminal device 1, and terminal device 1 sends the uplink SRS on the target time-frequency resource of the S subframe according to this indication information. The network device also sends indication information for indicating the transmission of the PUSCH in the S subframe to terminal device 2, and terminal device 2 sends the PUSCH on the target time-frequency resource of the S subframe according to this indication information.

[0125] Therefore, in this embodiment, the PUSCH of one terminal device and the uplink SRS of another terminal device are multiplexed on the same resource to improve the network throughput.

[0126] It should be noted that any of the foregoing embodiments may be implemented alone, or at least two of the foregoing embodiments may be arbitrarily combined to implement, and this is not limited herein.

[0127] It can be understood that in each of the above embodiments, the operations and steps implemented by the terminal device can also be implemented by components available for the terminal device (such as chips or circuits), and the embodiments of the present application do not limit this. The operations and steps implemented by the network device can also be implemented by components available for the network device (such as chips or circuits), and the embodiments of the present application do not limit this.

[0128] Figure 12 FIG. is a schematic structural diagram of a communication device provided by an embodiment of the present application. As Figure 12 shown, the communication device may be a terminal device, or a component of a terminal device (for example, an integrated circuit, a chip, etc.), or may be other communication modules, and is used to implement the operations corresponding to the terminal device in any of the above embodiments. The communication device 1200 in this embodiment includes: a transceiver module 1201 and a processing module 1202. The communication device 1200 in this embodiment can implement the solutions of the terminal device in any of the above embodiments through the transceiver module 1201 and the processing module 1202. The implementation principle and technical effects are similar, and will not be elaborated here.

[0129] Figure 13 FIG. is a schematic structural diagram of a communication device provided by another embodiment of the present application. As Figure 13 shown, the communication device may be a network device, or a component of a network device (for example, an integrated circuit, a chip, etc.), or may be other communication modules, and is used to implement the operations corresponding to the network device in any of the above embodiments. The communication device 1300 in this embodiment includes: a processing module 1301 and a transceiver module 1302. The communication device 1300 in this embodiment can implement the solutions of the network device in any of the above embodiments through the processing module 1301 and the transceiver module 1302. The implementation principle and technical effects are similar, and will not be elaborated here.

[0130] Figure 14 FIG. is a schematic structural diagram of a communication device provided by another embodiment of the present application. As Figure 14 shown, the communication device 1400 described in this embodiment may be the terminal device (or a component available for the terminal device) or the network device (or a component available for the network device) mentioned in the foregoing method embodiments. The communication device can be used to implement the methods corresponding to the terminal device or the network device described in the above method embodiments. For specific descriptions, please refer to the descriptions in the above method embodiments.

[0131] The communication device 1400 may include one or more processors 1401, which may also be referred to as processing units and can implement certain control or processing functions. The processor 1401 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device, execute software programs, and process data of software programs.

[0132] In a possible design, the processor 1401 may also store instructions 1403 or data (such as intermediate data). Among them, the instructions 1403 can be run by the processor, so that the communication device 1400 executes the methods corresponding to the terminal device or the network device described in the above method embodiments.

[0133] In yet another possible design, the communication device 1400 may include a circuit, and the circuit can implement the functions of sending, receiving, or communicating in the foregoing method embodiments.

[0134] In a possible implementation manner, the communication device 1400 may include one or more memories 1402, on which instructions 1404 may be stored, and the instructions can be run on the processor, so that the communication device 1400 executes the methods corresponding to the terminal device or the network device described in the above method embodiments.

[0135] In a possible implementation manner, the memory may also store data. The processor and the memory may be provided separately or integrated together.

[0136] In a possible implementation manner, the communication device 1400 may further include a transceiver 1405 and / or an antenna 1406. The processor 1401 may be referred to as a processing unit and controls the communication device (terminal device, core network device, or radio access network device). The transceiver 1405 may be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, etc., and is used to implement the transceiver function of the communication device.

[0137] In a design, when the communication device 1400 is used to implement the operations corresponding to the terminal device in the above embodiments, for example, the processor 1401 may determine the target time-frequency resources within the uplink communication time period in the target subframe. The transceiver 1405 simultaneously sends the uplink SRS and PUSCH to the network device on the target resources.

[0138] Among them, the specific implementation processes of the above processor 1401 and transceiver 1405 can refer to the relevant descriptions of the terminal device in the above embodiments and will not be elaborated here.

[0139] In another design, when the communication device is used to implement the operations of the network device corresponding to the above embodiments, for example:

[0140] The transceiver 1405 can simultaneously receive the uplink SRS and PUSCH from the terminal device on the target time-frequency resources during the uplink communication time period in the target subframe. The processor 1401 can process the uplink SRS and PUSCH.

[0141] Among them, for the specific implementation processes of the above processor 1401 and transceiver 1405, reference can be made to the relevant descriptions of the network device in the above embodiments, which will not be elaborated here.

[0142] The processor 1401 and transceiver 1405 described in this application can be implemented on an integrated circuit (IC), analog IC, radio frequency integrated circuit (RFIC), mixed-signal IC, application specific integrated circuit (ASIC), printed circuit board (PCB), electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), BiCMOS, silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0143] Although in the above embodiment descriptions, the communication device 1400 is described by taking the terminal device or the network device as an example, the scope of the communication device described in this application is not limited to the above terminal device or network device, and the structure of the communication device can be unrestricted Figure 14 . The communication device 1400 can be an independent device or can be a part of a larger device. For example, the device can be:

[0144] (1) An independent integrated circuit IC, or chip, or chip system or subsystem;

[0145] (2) A set having one or more ICs. In a possible implementation, the IC set may also include a storage component for storing data and / or instructions;

[0146] (3) An ASIC, such as a modem (MSM);

[0147] (4) A module that can be embedded in other devices;

[0148] (5) A receiver, a wireless device, a mobile unit, a network device, etc.;

[0149] (6) Others, etc.

[0150] Figure 15 The structural schematic diagram of a terminal device provided by an embodiment of the present application. The terminal device can be applied to the terminal devices described in the above embodiments of the present application. For the sake of convenience of description, Figure 15 only the main components of the terminal device are shown. As Figure 15 shown, the terminal device 1500 includes a processor, a memory, a control circuit, an antenna, and an input / output device. The processor is mainly used for processing communication protocols and communication data, and controlling the entire terminal, executing software programs, and processing the data of software programs. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. The input / output device, such as a touch screen, a display screen, a keyboard, etc., is mainly used for receiving data input by the user and outputting data to the user.

[0151] After the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be wirelessly transmitted, after the processor performs baseband processing on the data to be transmitted, it outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0152] Those skilled in the art can understand that for the sake of convenience of description, Figure 15 only one memory and one processor are shown. In an actual terminal, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc. The embodiments of the present application do not limit this.

[0153] As a possible implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal, execute software programs, and process the data of software programs. Figure 15 The processor in Figure 15 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors, interconnected through technologies such as a bus. Those skilled in the art can understand that the terminal device may include multiple baseband processors to adapt to different network modes, and the terminal device may include multiple central processing units to enhance its processing ability. Each component of the terminal device can be connected through various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processing unit can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.

[0154] In one example, an antenna and a control circuit with transceiver functions can be regarded as the transceiver module 1501 of the terminal device 1500, and a processor with processing functions can be regarded as the processing module 1502 of the terminal device 1500. As Figure 15 shown, the terminal device 1500 includes a transceiver module 1501 and a processing module 1502. The transceiver module can also be called a transceiver, a transceiver unit, a transceiver device, etc. In a possible implementation, the devices in the transceiver module 1501 used to implement the receiving function can be regarded as the receiving module, and the devices in the transceiver module 1501 used to implement the sending function can be regarded as the sending module, that is, the transceiver module 1501 includes a receiving module and a sending module. Exemplarily, the receiving module can also be called a receiver, a receiver unit, a receiving circuit, etc., and the sending module can be called a transmitter, a transmitter unit, or a transmitting circuit, etc.

[0155] Figure 16 This is a schematic structural diagram of a communication system provided by an embodiment of the present application. As Figure 16 shown, the communication system 1600 described in this embodiment may include: a network device 1601 and one or more terminal devices 1602. Two terminal devices 1602 are taken as an example in the figure. Among them, the terminal device 1602 can adopt Figure 12 or Figure 14 or Figure 15 the structure of the device embodiment shown, and correspondingly, it can execute the technical solutions related to the terminal device in any of the above method embodiments. The implementation principle and technical effects are similar, and will not be elaborated here. The network device 1601 can adopt Figure 13 or Figure 14The structure of the device embodiment shown can, correspondingly, execute the technical solutions related to the network device in any of the above method embodiments. The implementation principles and technical effects are similar and will not be elaborated here.

[0156] It should be noted that the division of modules in the embodiments of the present application is illustrative, merely a logical function division. In actual implementation, there may be other division methods. In the embodiments of the present application, each functional module can be integrated into a processing module, or each module can exist physically alone, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0157] If the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs, etc., which can store program codes.

[0158] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted through a computer-readable storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that the computer can access or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)), etc.

Claims

1. A communication method, characterized in that, comprising: A terminal device determines target time-frequency resources within an uplink communication time period in a target subframe, where the target time-frequency resources are used to transmit an uplink sounding reference signal SRS and a physical uplink shared channel PUSCH; the target subframe is an S subframe; the uplink communication time period includes an uplink pilot time slot UpPTS in the S subframe; The terminal device simultaneously sends the uplink SRS and the PUSCH to a network device on the target time-frequency resources; wherein, the target time-frequency resources occupy at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resources.

2. The method according to claim 1, characterized in that, The target time-frequency resources occupy all symbols in the uplink communication time period in the target subframe in the time domain.

3. The method according to claim 2, characterized in that, The symbols occupied by the target time-frequency resources include a first symbol and a second symbol, the first symbol includes at least one symbol, and the second symbol includes at least one symbol; Part of the frequency domain resources in the first symbol are used to transmit the uplink SRS and the PUSCH, and all the frequency domain resources in the second symbol are used to transmit the uplink SRS and the PUSCH.

4. The method according to claim 3, characterized in that, Another part of the frequency domain resources in the first symbol are used to transmit a demodulation reference signal DMRS of the PUSCH.

5. The method according to claim 4, characterized in that, The part of the frequency domain resources and the other part of the frequency domain resources in the first symbol divide all the frequency domain resources of the first symbol by frequency division.

6. The method according to claim 5, characterized in that, Each resource element RE in the part of the frequency domain resources is spaced apart from each RE in the other part of the frequency domain resources.

7. The method according to any one of claims 3-6, characterized in that, The first symbol is the first symbol in the uplink communication time period in the target subframe.

8. The method according to claim 2, characterized in that, The target time-frequency resources are all the frequency domain resources of all symbols in the uplink communication time period in the target subframe.

9. The method according to claim 1, characterized in that, The target time-frequency resources occupy some symbols in the uplink communication time period in the target subframe in the time domain.

10. The method according to claim 9, characterized in that, The other symbols in the uplink communication time period in the target subframe except for the symbols occupied by the target time-frequency resources are used to transmit the DMRS of the PUSCH.

11. The method according to claim 9 or 10, characterized in that, The symbols occupied by the target time-frequency resources are the symbols in the uplink communication time period in the target subframe except for the first symbol.

12. The method according to any one of claims 1-6, 8-10, characterized in that, Before the terminal device simultaneously sends the uplink SRS and the PUSCH to the network device on the target time-frequency resources, it further includes: The terminal device receives first information from a network device, where the first information is used to indicate that the uplink SRS and the PUSCH are transmitted on the same time-frequency resource in the target subframe.

13. The method according to claim 12, wherein, further comprising: The terminal device receives second information from the network device, where the second information is used to indicate the target time-frequency resource.

14. A communication method, wherein, comprising: The network device simultaneously receives an uplink sounding reference signal SRS and a physical uplink shared channel PUSCH from a terminal device on a target time-frequency resource within an uplink communication time period in a target subframe, where the target time-frequency resource is used for transmitting the uplink SRS and the PUSCH; the target subframe is an S subframe; the uplink communication time period includes an uplink pilot time slot UpPTS in the S subframe; The network device processes the uplink SRS and the PUSCH; wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

15. The method according to claim 14, wherein, further comprising: The network device sends first information to the terminal device, where the first information is used to indicate that the uplink SRS and the PUSCH are transmitted on the same time-frequency resource in the target subframe.

16. The method according to claim 15, wherein, further comprising: The network device sends second information to the terminal device, where the second information is used to indicate the target time-frequency resource.

17. A communication device, wherein, comprising: A processing module, configured to determine a target time-frequency resource within an uplink communication time period in a target subframe, where the target time-frequency resource is used for transmitting an uplink sounding reference signal SRS and a physical uplink shared channel PUSCH; the target subframe is an S subframe; the uplink communication time period includes an uplink pilot time slot UpPTS in the S subframe; A transceiver module, configured to simultaneously send the uplink SRS and the PUSCH to a network device on the target time-frequency resource; wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

18. A communication device, wherein, comprising: A transceiver module, configured to simultaneously receive an uplink sounding reference signal SRS and a physical uplink shared channel PUSCH from a terminal device on a target time-frequency resource within an uplink communication time period in a target subframe, where the target time-frequency resource is used for transmitting the uplink SRS and the PUSCH; the target subframe is an S subframe; the uplink communication time period includes an uplink pilot time slot UpPTS in the S subframe; A processing module, configured to process the uplink SRS and the PUSCH; wherein, the target time-frequency resource occupies at least one symbol in the time domain, and the uplink SRS and the PUSCH occupy the same time-frequency resource.

19. A communication device, wherein, comprising: A memory, a processor, and a transceiver; The memory is configured to store program instructions; The processor is configured to call program instructions in the memory to execute the communication method according to any one of claims 1-13 or the communication method according to any one of claims 14-16.

20. A chip, characterized in that it includes at least one processor and a communication interface, the communication interface and the at least one processor are interconnected by a line, and the at least one processor is configured to run computer programs or instructions to perform the communication method according to any one of claims 1-13 or the communication method according to any one of claims 14-16.

21. A computer-readable storage medium, characterized in that it includes instructions that, when run on a computer, cause the computer to execute the communication method according to any one of claims 1-13 or the communication method according to any one of claims 14-16.

22. A computer program product containing instructions that, when run on a computer, cause the computer to execute the communication method according to any one of claims 1-13 or the communication method according to any one of claims 14-16.

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