A method and apparatus for indicating a number of repetitions

Abstract

The application relates to the communication technical field, discloses a kind of indication method and device of repeated transmission number, to realize the repeated transmission number configuration of SRS and / or PUSCH more adaptive channel variation.The method is that network equipment sends DCI to terminal equipment, and the first indication information is contained in the DCI, and the first indication information is used to indicate the repeated transmission number of SRS and / or PUSCH.Because the updating process of DCI is faster relative to RRC signaling, the overhead is small, and network side equipment can flexibly configure the repeated transmission number of SRS and / or PUSCH by DCI, to be more adaptive to the change of channel, further improve channel estimation capability and signal demodulation performance.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a method and apparatus for indicating the number of repeated transmissions. Background Technology

[0002] During communication between the user equipment (UE) and the base station (eNB), SRS (sounding reference signal) and DMRS (demodulation reference signal) are two types of reference signals sent by the UE to the base station. These signals are used by the base station to perform channel estimation and data demodulation on the uplink transmission channel.

[0003] The accuracy of channel estimation directly affects the efficiency and reliability of data transmission between the base station and the terminal. For example, when the SRS-based channel estimation is inaccurate, the MCS (modulation and coding scheme) used by the base station to schedule PUSCH (physical uplink shared channel) transmission may be inaccurate. This could lead to excessively high modulation schemes / code rates when channel quality is poor, causing terminal decoding failure, or excessively low modulation schemes / code rates when channel quality is good, resulting in less effective transmitted information. Therefore, ensuring accurate channel estimation based on the reference signal SRS is crucial for system performance. Furthermore, since both DMRS and data are carried on the PUSCH and use the same precoding, inaccurate DMRS-based channel estimation may prevent the base station from correctly demodulating the data carried on the received PUSCH, leading to a reduction in the system's data transmission rate.

[0004] To ensure accurate channel estimation, the existing NR (new radio access technology) protocol defines a repeated transmission method for SRS and PUSCH (including DMRS and data signals). The base station configures the number of repeated transmissions of SRS and PUSCH for the terminal through RRC (radio resource control) signaling. Through multiple repeated transmissions, the base station can combine the received signals, thereby increasing the SNR (signal tonoise power ratio, SNR or S / N) of the received signal, thus improving the channel estimation capability and signal demodulation performance.

[0005] Currently, RRC signaling involves multiple processes such as connection management, radio bearer control, and connection mobility, which makes the RRC signaling update process slow. This results in a significant delay in the terminal receiving updates to the number of repeated transmissions of SRS and / or PUSCH configured by the RRC signaling, making it unable to flexibly and dynamically adapt to changes in the transmission channel, leading to poor channel estimation capability and signal demodulation performance. Summary of the Invention

[0006] This application provides a method and apparatus for indicating the number of repeated transmissions, so as to make the repeated transmission number configuration of SRS and / or PUSCH more adaptable to channel changes.

[0007] In a first aspect, this application provides a method and apparatus for indicating the number of repeated transmissions. The method includes: a terminal receiving DCI (downlink control information) sent by a network-side device, the DCI containing indication information, and the terminal determining the number of repeated transmissions of SRS and / or PUSCH based on the indication information of the DCI (referred to as the first indication information).

[0008] Through the above design, network-side equipment dynamically indicates the number of retransmissions of SRS and / or PUSCH based on DCI, and the terminal determines the number of retransmissions of SRS and / or PUSCH based on the first indication information of DCI. Since the update process of DCI is faster than that of RRC signaling, the number of retransmissions of SRS and / or PUSCH can be dynamically configured through DCI to better adapt to channel changes, thereby improving channel estimation capability and signal demodulation performance.

[0009] In one possible design, the first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes a modulation and coding strategy (MCS) index value.

[0010] In one possible design, when the first indication information is an MCS index value, the terminal can determine the number of repeated transmissions of the SRS and / or PUSCH corresponding to the MCS index value according to the first correspondence relationship; wherein, the first correspondence relationship includes the correspondence relationship between different MCS index values ​​and different repeated transmissions of SRS and / or PUSCH.

[0011] In one possible design, the MCS index value includes a redundant value and a valid value. When the first indication information is a valid MCS index value, the terminal receives trigger information sent by the network-side device. The trigger information is used to instruct the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the first indication information.

[0012] The above design, which indicates the number of repeated transmissions of SRS and / or PUSCH using existing fields (MCS index) in the current DCI, requires additional signaling (triggering information) to trigger the terminal to reinterpret the existing fields of the DCI. For example, for a DCI that schedules PUSCH, the MCS index in the DCI is used to indicate the modulation order and code rate of the PUSCH. When the valid value of the MCS index indicates the number of repeated transmissions of SRS and / or PUSCH, the network device can use triggering information to instruct the terminal, when interpreting the MCS index value in the DCI, to not only determine the corresponding modulation order and code rate based on the MCS index value, but also to determine the number of repeated transmissions of SRS and / or PUSCH based on the MCS index value; or, to trigger the terminal to only reinterpret the MCS index in the DCI, that is, to determine the corresponding number of repeated transmissions of SRS and / or PUSCH based only on the MCS index value.

[0013] The triggering information can be a dynamic indicator parameter configured in the RRC to indicate the number of repeated transmissions, such as 'DynamicalRepetition'. Different values ​​of this dynamic indicator parameter indicate whether the terminal is triggered to reinterpret existing fields in the DCI. For example, a dynamic indicator parameter of 1 triggers a new interpretation; a dynamic indicator parameter of 0 indicates that the terminal does not need to perform a new interpretation; or, if the RRC does not carry this dynamic indicator parameter, it indicates that the terminal does not need to perform a new interpretation.

[0014] It should be noted that when using an existing field of the DCI, and a redundant value of that existing field, to indicate the number of repeated transmissions of SRS and / or PUSCH (e.g., a redundant value of the MCS index), or when an extended field of the DCI carries the first indication information, the network-side device does not need to trigger the terminal to perform a new interpretation through additional signaling. For example, when the redundancy value of the MCS index of the DCI is used for indication, the terminal, upon receiving the DCI, can determine the number of repeated transmissions of SRS and / or PUSCH based on the redundant MCS index value. Similarly, when using an extended field to carry the first indication information, the terminal, upon receiving the DCI, can determine the number of repeated transmissions of SRS and / or PUSCH based on the first indication information carried on the extended field of the DCI. In other words, after issuing the DCI, the network-side device does not need to trigger the terminal to interpret the first indication information through additional signaling.

[0015] By using the above method, we can achieve dynamic configuration of the number of repeated transmissions of SRS and / or PUSCH, while also saving resource overhead.

[0016] In one possible design, the first indication information is carried on an extended field in the DCI; the terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or the terminal determines the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field based on a second correspondence; wherein the second correspondence includes the correspondence between different value indices of the extended field and different repeated transmission numbers of SRS and / or PUSCH.

[0017] In one possible design, before receiving the DCI, the terminal may also receive Radio Resource Control (RRC) signaling containing second indication information, which indicates the first number of retransmissions of the SRS and / or PUSCH. The terminal determines the number of retransmissions of the SRS and / or PUSCH based on the second indication information, or the terminal obtains the number of retransmissions of the SRS and / or PUSCH by using an adjustment value indicated by the first indication information and the first number of retransmissions of the SRS and / or PUSCH indicated by the second indication information.

[0018] The above design determines the number of repeated transmissions of SRS and / or PUSCH based on RRC signaling and DCI. If the channel conditions are stable, the number of repeated transmissions of SRS and / or PUSCH is semi-statically configured through RRC signaling to save the signaling overhead of indicating the number of repeated transmissions of SRS and / or PUSCH. If the channel conditions change, the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information in RRC signaling can be dynamically adjusted through DCI. The indication method is flexible and improves the channel estimation capability and signal demodulation performance.

[0019] In one possible design, when the first indication information is an indication value, the terminal can also determine the adjustment value corresponding to the indication value according to a third correspondence; wherein, the third correspondence is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

[0020] In one possible design, the terminal selects a candidate value from a plurality of preset candidate values, excluding the number of repeated transmissions of SRS indicated by the second indication information, based on the first indication information, and uses the selected candidate value as the determined number of repeated transmissions of SRS.

[0021] In one possible design, if the number of repeated transmissions of the SRS is greater than 1, the terminal uses the transmission parameters of the first SRS to transmit subsequent SRSs until the number of SRSs transmitted through the same slot reaches the determined number of repeated transmissions of the SRS; or if the number of repeated transmissions of the PUSCH is greater than 1, the terminal uses the transmission parameters of the first PUSCH to transmit subsequent PUSCHs until the number of PUSCHs transmitted through the same radio frame reaches the determined number of repeated transmissions of the PUSCH.

[0022] The transmission parameters include: transmission power, antenna port, beam direction, and frequency domain resources.

[0023] Secondly, this application provides a method and apparatus for indicating the number of repeated transmissions. The method includes: a network-side device sending a downlink control signaling (DCI) to a terminal. The DCI includes first indication information, which is used to indicate the number of repeated transmissions of the SRS and / or the Physical Uplink Shared Channel (PUSCH).

[0024] In one possible design, the first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes a modulation and coding strategy (MCS) index value.

[0025] In one possible design, the first indication information is the MCS index value;

[0026] The first indication information is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value according to the first correspondence relationship, wherein the first correspondence relationship includes the correspondence relationship between different MCS index values ​​and different repeated transmission numbers of SRS and / or PUSCH.

[0027] In one possible design, the first indication information is carried on an extended field in the DCI;

[0028] The extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or the extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field based on the third correspondence; wherein the third correspondence includes the correspondence between different value indices and different repeated transmission numbers of SRS and / or PUSCH.

[0029] In one possible design, the network-side device sends Radio Resource Control (RRC) signaling to the terminal. The RRC signaling includes second indication information, which indicates the number of repeated transmissions of SRS and / or PUSCH. The first indication information indicates the number of repeated transmissions of SRS and / or PUSCH, or the first indication information indicates an adjustment value for adjusting the number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information, so that the terminal obtains the number of repeated transmissions of SRS and / or PUSCH based on the adjustment value and the first number of repeated transmissions of SRS and / or PUSCH indicated by the received second indication information.

[0030] In one possible design, the first indication information is an indication value; the indication value is used by the terminal to determine the adjustment value corresponding to the indication value according to a third correspondence; wherein, the third correspondence is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

[0031] In one possible design, the first indication information is used to instruct the terminal to select a candidate value from a plurality of preset candidate values ​​other than the number of repeated transmissions of the SRS indicated by the second indication information, and to use the selected candidate value as the determined number of repeated transmissions of the SRS.

[0032] Thirdly, embodiments of this application provide a communication device that has the function of implementing the first aspect or any possible design method of the first aspect. The function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, such as a transceiver unit and a processing unit.

[0033] In one possible design, the device can be a chip or an integrated circuit.

[0034] In one possible design, the device includes a memory and a processor, the memory for storing a program executed by the processor, and when the program is executed by the processor, the device can perform the method described in the first aspect or any of the possible designs of the first aspect.

[0035] In one possible design, the device can be a terminal device.

[0036] Fourthly, embodiments of this application provide a communication device that has the function of implementing the second aspect or any possible design method described in the second aspect. This function can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions, such as a transmitting unit and a processing unit.

[0037] In one possible design, the device can be a chip or an integrated circuit.

[0038] In one possible design, the device includes a memory and a processor, the memory for storing a program executed by the processor, which, when executed by the processor, allows the device to perform the method in the fourth aspect or any of the possible designs of the fourth aspect, or to implement the method in the fifth aspect or any of the possible designs of the fifth aspect, or to implement the method in the sixth aspect or any of the possible designs of the sixth aspect.

[0039] In one possible design, the device can be a network-side device.

[0040] Fifthly, a system is provided, which includes at least one network-side device and at least one terminal as described above.

[0041] In a sixth aspect, embodiments of this application provide a computer-readable storage medium storing computer instructions that, when executed, can implement the method described in the first aspect or any possible design of the first aspect, or implement the method described in the second aspect or any possible design of the second aspect.

[0042] In a seventh aspect, embodiments of this application also provide a computer program product, including a computer program or instructions, which, when executed, can implement the method described in the first aspect or any possible design of the first aspect, or implement the method described in the second aspect or any possible design of the second aspect.

[0043] Eighthly, embodiments of this application also provide a chip coupled to a memory for reading and executing program instructions stored in the memory to implement the method described in the first aspect or any possible design of the first aspect, or to implement the method described in the second aspect or any possible design of the second aspect. Attached Figure Description

[0044] Figure 1 A communication system architecture diagram provided for embodiments of this application;

[0045] Figure 2A schematic diagram illustrating a method for indicating the number of repeated transmissions provided in an embodiment of this application;

[0046] Figure 3 A schematic diagram of an interactive process for indicating the number of repeated transmissions is provided in an embodiment of this application;

[0047] Figure 4 This is one of the schematic block diagrams of the terminal device provided in the embodiments of this application;

[0048] Figure 5 A second schematic block diagram of a terminal device provided in an embodiment of this application;

[0049] Figure 6 One of the schematic block diagrams of the network device provided in the embodiments of this application;

[0050] Figure 7 A second schematic block diagram of a network device provided in an embodiment of this application;

[0051] Figure 8 This is a schematic diagram of the structure of the terminal device provided in the embodiments of this application;

[0052] Figure 9 This is a schematic diagram of the network device provided in an embodiment of this application. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. The specific operating methods in the method embodiments can also be applied to the device embodiments or system embodiments. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0054] like Figure 1 The diagram illustrates a possible network architecture applicable to this application, including a network device and at least one terminal device. The network device and terminal device can operate on a new radio (NR) communication system, and the terminal device can communicate with the network device through the NR communication system. The network device and terminal device can also operate on other communication systems; this application does not impose limitations on these systems.

[0055] User equipment (UE) can be a wireless terminal device capable of receiving network device scheduling and initial instruction information. It can be a device providing voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. The wireless terminal device can communicate with one or more core networks or the Internet via a radio access network (RAN). It can be a mobile terminal device, such as a mobile phone (or "cellular" phone), computer, or data card. For example, it can be a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc. Wireless terminal equipment can also be wearable devices and next-generation communication systems, such as terminal equipment in 5G networks, terminal equipment in future evolved public land mobile networks (PLMNs), and terminal equipment in NR communication systems.

[0056] Network equipment is an entity on the network side used to transmit or receive signals, such as a next-generation base station (gNodeB). Network equipment can be used to communicate with mobile devices. Network equipment can be an access point (AP) in a wireless local area network (WLAN), a base transceiver station (BTS) in a global system for mobile communication (GSM) or code division multiple access (CDMA), a base station (NodeB, NB) in wideband code division multiple access (WCDMA), an evolved Node B (eNB or eNodeB) in long term evolution (LTE), a relay station or access point, or in-vehicle equipment, wearable devices, and network equipment in future 5G networks or future public land mobile networks (PLMNs), or a gNodeB in an NR system, etc. Furthermore, in this embodiment, the network device provides services to a cell, and the terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. This cell can be a cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. Small cells can include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage area and low transmission power, making them suitable for providing high-speed data transmission services. In addition, in other possible cases, the network device can be other devices that provide wireless communication functions for the terminal device. The embodiments of this application do not limit the specific technology or device form used by the network device. For ease of description, in this embodiment, the device that provides wireless communication functions for the terminal device is referred to as a network device.

[0057] To address the problems mentioned in the background art, this application provides a solution in which the network-side device notifies the terminal of the number of repeated transmissions of SRS and / or PUSCH through DCI. Since DCI is a physical layer control signaling, its update process is faster than that of RRC signaling. The network-side device can flexibly configure the number of repeated transmissions of SRS and / or PUSCH through DCI to better adapt to channel changes and improve channel estimation capability and signal demodulation performance.

[0058] The solution provided in this application will be described below with reference to the accompanying drawings. Based on Figure 1 The architecture shown is as follows: Figure 2 As shown, this application provides a method for indicating the number of repeated transmissions, the method comprising the following steps:

[0059] Step 200: The network-side device sends a DCI to the terminal. The DCI contains first indication information, which is used to indicate the number of repeated transmissions of SRS and / or PUSCH.

[0060] The network-side device configures the number of repeated transmissions of SRS according to the candidate values ​​of the number of repeated transmissions of SRS (hereinafter referred to as SRS candidate values). That is, the number of repeated transmissions of SRS configured by the network-side device for the terminal is one of the SRS candidate values. Similarly, the network-side device configures the number of repeated transmissions of PUSCH according to the candidate values ​​of the number of repeated transmissions of PUSCH (hereinafter referred to as PUSCH candidate values). Likewise, the number of repeated transmissions of PUSCH configured by the network-side device for the terminal is one of the PUSCH candidate values.

[0061] Currently, the candidate values ​​for SRS include {1, 2, 4}, and the candidate values ​​for PUSCH include {1, 2, 4, 8}. The following will use the above candidate values ​​for SRS and PUSCH as examples to introduce the technical solution of this application.

[0062] Step 201: The terminal receives DCI from the network-side device;

[0063] Step 202: The terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information of DCI.

[0064] Based on the above method, the network-side device dynamically configures the number of retransmissions of SRS and / or PUSCH through DCI, and the terminal determines the number of retransmissions of SRS and / or PUSCH according to the first indication information in the DCI. Since the DCI updates relatively quickly, the network side's use of DCI to dynamically configure the number of retransmissions of SRS and / or PUSCH by the terminal device can better adapt to channel changes, thereby improving channel estimation capability and signal demodulation performance.

[0065] In this application embodiment, there are multiple ways to indicate the number of repeated transmissions of SRS and / or PUSCH through DCI. For example, it can be indicated through an existing field in DCI (e.g., MCS index), or through a newly added field in DCI (hereinafter referred to as an extended field). It can also be indicated jointly by DCI and RRC signaling. The specific implementation methods are as follows:

[0066] One implementation method is to use existing fields in the DCI to indicate the number of repeated transmissions of SRS and / or PUSCH.

[0067] For example, the number of repeated transmissions of SRS and / or PUSCH can be indicated by an existing field in DCI—the MCS index.

[0068] Specifically, the network-side device sends a DCI to the terminal. The DCI contains first indication information, which can be the MCS index value in the DCI. The MCS index value is used to indicate to the terminal the number of repeated transmissions of the SRS and / or PUSCH corresponding to the MCS index value.

[0069] Correspondingly, when the terminal receives the DCI from the network-side device, it determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information in the DCI. For example, the first indication information may be the MCS index value in the DCI. Based on the correspondence between the MCS index value and the number of repeated transmissions of SRS and / or PUSCH, the terminal determines the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value contained in the received DCI.

[0070] When the number of repeated transmissions of SRS and / or PUSCH is indicated by existing fields in DCI, it can be indicated by the valid value of MCS or by the redundancy value of MCS.

[0071] It is understood that the valid value of the MCS index is a value currently used to indicate communication parameters to the terminal. For example, the valid value of the MCS index used for scheduling PUSCH DCI, and the value used to indicate the modulation order and code rate of PUSCH (the MCS index will be described in detail in Table 1 below). Therefore, in this application, when the first indication information is an MCS index value, and the MCS index value is a valid value of the MCS index, the network-side device can send trigger information (also referred to as third indication information) to the terminal. This trigger information can be carried in RRC signaling and is used to indicate whether the terminal uses the valid value of the MCS index to determine the number of repetitions of SRS and / or PUSCH. For example, this trigger information can be a parameter 'dynamic repetition' configured in the RRC signaling, which is used to indicate to the terminal whether to determine the number of repetitions of SRS and / or PUSCH based on the valid value of the MCS index. For example, when the value of dynamic repetition is 1, it is used to trigger the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the valid value of the MCS index. When the value of dynamic repetition is 0, it instructs the terminal not to determine the number of repeated transmissions of SRS and / or PUSCH based on the valid value of the MCS.

[0072] As another example, when the network-side device determines that it does not need to indicate the number of repeated transmissions of SRS and / or PUSCH through the valid value of the MCS index, it can choose not to send the trigger information to the terminal. When the network-side device determines that it needs to trigger the terminal to indicate the number of repeated transmissions of SRS and / or PUSCH through the valid value of the MCS index, it will then send the trigger information to the terminal, thereby achieving dynamic indication and saving resource overhead.

[0073] Specifically, the network-side device sends a trigger message to the terminal device, instructing the terminal to determine the number of SRS and / or PUSCH retransmissions based on the valid value of the MCS index of the DCI. Correspondingly, the terminal receives the trigger message sent by the network-side device and determines, based on the trigger message, the number of SRS and / or PUSCH retransmissions to be determined according to the valid value of the MCS index of the DCI sent by the network-side device.

[0074] Subsequently, the network-side device sends a DCI to the terminal device. After receiving the DCI sent by the network-side device, the terminal determines the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value of the received DCI based on the correspondence between the valid value of the MCS index and the number of repeated transmissions of SRS and / or PUSCH.

[0075] It should be noted that the above are merely examples. In this application, the specific indication method used by the network-side device and the terminal to determine the number of repeated transmissions of SRS and / or PUSCH can be defined by the protocol or configured by the network-side device for the terminal. For example, during communication, the network-side device may configure it through higher-layer signaling or physical-layer signaling. For instance, the network-side device may send configuration information of the indication method to the terminal via RRC signaling. The terminal determines the specific DCI indication method based on this configuration information, such as indicating the number of repeated transmissions of SRS and / or PUSCH using the valid value of the MCS index or using the redundancy value of the MCS index. Optionally, when indicating the number of repeated transmissions of SRS and / or PUSCH using the redundancy value of the MCS index, the network-side device may not send triggering signaling.

[0076] If the first indication information is an MCS index value, and if the MCS index value is a redundant value of the MCS index, the network-side device can trigger it without additional signaling. When the terminal receives the DCI and determines that the MCS index in the DCI is a redundant value, it can determine the number of repeated transmissions of SRS and / or PUSCH based on the redundant MCS index value.

[0077] The second implementation method uses an extended field of DCI to indicate the number of repeated transmissions of SRS and / or PUSCH.

[0078] Specifically, the network-side device sends a DCI to the terminal. This DCI contains first indication information, which may be carried in an extension field of the DCI. Correspondingly, the terminal receives the DCI from the network-side device and determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information carried in the extension field of the DCI.

[0079] In one method of indicating the number of repeated transmissions of SRS and / or PUSCH through an extended field in the DCI, the extended field displays the number of repeated transmissions of SRS and / or PUSCH. For example, if the value of the first indication information carried by the extended field is 1, it indicates that the number of repeated transmissions of SRS and / or PUSCH is 1; if the value of the first indication information is 2, it indicates that the number of repeated transmissions of SRS and / or PUSCH is 2. In other words, the number of repeated transmissions of SRS and / or PUSCH is determined based on the value of the extended field in the DCI.

[0080] Another indication method is to implicitly indicate the number of repeated transmissions of SRS and / or PUSCH through an extended field. For example, the first indication information carried on the extended field is the index of the number of repeated transmissions of SRS and / or PUSCH. Based on the correspondence between different index values ​​and the number of repeated transmissions of SRS and / or PUSCH, the value of the extended field in the DCI sent by the network-side device is determined to be an index value that corresponds to the number of repeated transmissions of SRS and / or PUSCH.

[0081] Optionally, when the number of repeated transmissions of SRS and / or PUSCH is indicated by DCI, that is, in implementation mode one and implementation mode two, the network-side device may not configure RRC signaling for the terminal to indicate the number of repeated transmissions of SRS and / or PUSCH, or the terminal may choose not to accept RRC signaling carrying the number of repeated transmissions of SRS and / or PUSCH.

[0082] The third implementation method is to jointly indicate the number of repeated transmissions of SRS and / or PUSCH through RRC signaling and DCI;

[0083] In an optional scenario, the network-side device can jointly indicate the number of retransmissions of SRS and / or PUSCH via RRC signaling and DCI. For example, as follows: Figure 3 The diagram shown illustrates the interaction flow of this application via RRC signaling and DCI joint instruction. This interaction flow includes the following steps:

[0084] Step 300: The network-side device sends RRC signaling to the terminal. The RRC signaling includes second indication information, which is used to indicate the first number of repeated transmissions of SRS and / or PUSCH.

[0085] Step 301: The terminal receives the RRC signaling sent by the network-side device and determines the first number of repeated transmissions of SRS and / or PUSCH according to the second indication information of the RRC signaling.

[0086] Step 302: The network-side device sends a DCI to the terminal. The DCI contains first indication information, which is used to indicate the number of repeated transmissions of SRS and / or PUSCH; or the first indication information is used to instruct the terminal to adjust the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information.

[0087] Step 303: The terminal receives the DCI and determines the final number of repeated transmissions of SRS and / or PUSCH based on the adjustment value indicated by the first indication information contained in the DCI and the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information of the RRC signaling.

[0088] Specifically, for step 302, when the number of repeated transmissions of SRS and / or PUSCH is jointly indicated by RRC signaling and DCI, one indication method is to indicate an adjustment value for the first repeated transmission count of SRS and / or PUSCH indicated by the second indication information in the RRC signaling through the first indication information of the DCI. For example, if the adjustment value indicated by the first indication information of the DCI is -1, then the first repeated transmission count indicated by the second indication information is subtracted by 2. Or, for another example, if the adjustment value indicated by the first indication information of the DCI is 2, then the first repeated transmission count indicated by the second indication information is added by 2.

[0089] Another indication method is to remove the first repeated transmission number of SRS indicated by the second indication information from the candidate values ​​of the repeated transmission number of SRS according to the selection rules corresponding to the first indication information of DCI, and then select one from the remaining candidate values ​​according to the selection rules; or remove the first repeated transmission number of PUSCH indicated by the second indication information from the candidate values ​​of the repeated transmission number of PUSCH, and then select one from the remaining candidate values ​​according to the selection rules.

[0090] The third indication method is that the network-side device instructs the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the first indication information of the DCI sent subsequently. Correspondingly, when the terminal receives the DCI after receiving the RRC signaling, and the first indication information of the DCI is used to indicate the number of repeated transmissions of SRS and / or PUSCH, the terminal performs repeated transmissions based on the number of repeated transmissions of SRS and / or PUSCH indicated by the first indication information of the DCI.

[0091] In one possible scenario, after sending RRC signaling, the network-side device does not send DCI to the terminal, or the DCI sent to the terminal does not carry the aforementioned first indication information. In this case, the terminal performs repeated transmissions according to the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information issued by the network-side device.

[0092] It should be understood that the time interval for network-side devices to issue RRC signaling is relatively large, for example, tens of milliseconds. During this period, the network-side devices can adjust the number of repeated transmissions of SRS and / or PUSCH based on the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information, according to the channel changes, through DCI dynamic instruction to obtain the number of repeated transmissions of SRS and / or PUSCH adapted to the changed channel.

[0093] It should be noted that, firstly, the different implementation methods and various specific indication methods under different implementation methods can all achieve the technical solution of this application of indicating the number of repeated transmissions of SRS and / or PUSCH through DCI. However, the specific indication method used can be defined by the protocol, preset within the network-side device and terminal, or configured by the network-side device for the terminal. For example, during communication, the network-side device sends configuration information of the DCI indication method to the terminal through higher-layer signaling or physical-layer signaling, and the terminal determines the specific DCI indication method based on the configuration information. Secondly, similarly, the correspondences involved in the different indication methods mentioned above can be based on the protocol definition, preset within the network-side device and terminal, or configured by the network-side device for the terminal through higher-layer signaling. This application does not limit this aspect in its embodiments.

[0094] The above are several implementation methods of indicating the number of repeated transmissions of SRS and / or PUSCH through DCI signaling in this application. Each implementation method also includes different indication methods. Each indication method forms the specific technical solution of this application. The above indication methods will be described in detail below. Before introducing the specific technical solution of this application, the MCS index will be briefly explained first.

[0095] Network-side devices carry MCS index values ​​through DCI and use MCS index values ​​to indicate different parameters. Correspondingly, the range of MCS index values ​​is determined according to the total number of states corresponding to the indicated parameters. For example, as shown in Table 1 below, it is a modulation order and code rate of PUSCH indicated by MCS index.

[0096] Table 1

[0097]

[0098]

[0099] As shown in the table above, the DCI contains 28 PUSCH modulation order and code rate status values, which correspond one-to-one with the MCS index values ​​0-27. That is, the network-side device indicates the PUSCH modulation order and code rate to the terminal through different MCS index values.

[0100] It should be understood that the DCI consists of multiple bits with values ​​of 0 and 1. The DCI used to indicate the modulation order and code rate of the PUSCH has at least 5 bits, with corresponding values ​​ranging from 0 to 32. Currently, only 0 to 27 are used to indicate 28 different state values ​​of the modulation order and code rate of the PUSCH, leaving 4 MCS index values ​​idle (see MCS index values ​​28-31 in Table 1). That is, MCS index values ​​28-31 are not used to indicate the modulation order and code rate of the PUSCH. For ease of description, MCS index values ​​0-27 are referred to as valid MCS index values, and MCS index values ​​28-31 are referred to as redundant MCS index values.

[0101] In this embodiment, the first implementation method is to use the aforementioned MCS index to indicate the number of repeated transmissions of SRS and / or PUSCH. The MCS index can be a valid MCS index value or a redundant MCS index value. The following is a detailed description of the two indication methods in the first implementation method:

[0102] [Instruction Method 1]

[0103] The number of repeated transmissions of SRS and / or PUSCH is indicated by the valid MCS index value.

[0104] The network-side device sends a Data Interpretation Message (DCI) to the terminal. This DCI contains first indication information, which is a valid MCS index value. This valid MCS index value indicates to the terminal the number of repeated transmissions of the SRS and / or PUSCH. Correspondingly, the terminal receives the DCI sent by the network-side device and, based on a preset correspondence between valid MCS index values ​​and the number of repeated transmissions of the SRS and / or PUSCH, determines the number of repeated transmissions of the SRS and / or PUSCH corresponding to the valid MCS index value contained in the received DCI.

[0105] Specifically, in this application embodiment, the number of repeated transmissions of SRS can be indicated by a valid MCS index value, or the number of repeated transmissions of PUSCH can be indicated by a valid MCS index value. Furthermore, the number of repeated transmissions of both SRS and PUSCH can be indicated by a valid MCS index value, as illustrated in the following examples:

[0106] Example 1: Indicates the number of repeated transmissions of SRS using a valid MCS index value;

[0107] The network-side device sends a Data Interpretation Code (DCI) to the terminal device. This DCI contains first indication information, which indicates the number of repeated transmissions of the SRS (Single Relay System). This first indication information can be an MCS (Multi-Segment Count) index value. Correspondingly, after receiving the DCI from the network-side device, the terminal determines the number of repeated transmissions of the SRS corresponding to the MCS index value in the received DCI, based on the correspondence between the MCS index value and the number of repeated transmissions of the SRS.

[0108] Specifically, when indicating the number of repeated transmissions of SRS using the effective MCS index value, it can be determined based on the modulation stage indicated by the current MCS index. For example, when the modulation order indicated by the MCS index value is 2, it indicates that the channel conditions for PUSCH are poor, and a lower-order modulation scheme (i.e., a smaller modulation order) should be used to ensure demodulation performance. Therefore, to ensure uplink transmission of SRS and PUSCH, the number of repeated transmissions of SRS and / or PUSCH can be higher when the channel conditions are poor. When the modulation order indicated by the MCS index value is 4, it indicates that the channel conditions are good, so the number of repeated transmissions of SRS and PUSCH can be appropriately reduced. When the modulation order indicated by the MCS index value is 6, it indicates that the channel conditions are very good, and a higher-order modulation scheme can be used to achieve higher spectral efficiency. Therefore, the number of repeated transmissions of SRS and PUSCH can be further reduced.

[0109] In summary, the correspondence between the effective MCS index value and the number of repeated transmissions of SRS can be shown in Table 2 below.

[0110] Table 2

[0111] Valid MCS index value SRS retransmission count 0-9 4 10-16 2 17-27 1

[0112] Alternatively, the preset correspondence within the terminal is shown in Table 3 below.

[0113] Table 3

[0114] Modulation order SRS retransmission count 2 4 4 2 6 1

[0115] That is, the terminal can first determine the modulation order indicated by the MCS index value based on the MCS index value, and then determine the number of repeated transmissions of the SRS corresponding to the modulation order indicated by the MCS index value according to the correspondence between the modulation order and the number of repeated transmissions of the SRS. For example, taking Table 2 as an example, assuming that the terminal receives a DCI sent by the network-side device with an MCS index value of 11, the terminal determines that the number of repeated transmissions of the SRS corresponding to the MCS index value 11 is 2 according to the correspondence shown in Table 2. Then, the terminal transmits the SRS according to the determined number of repeated transmissions.

[0116] Example 2: Indicating the number of repeated transmissions of PUSCH using a valid MCS index value;

[0117] The network-side device sends a DCI to the terminal device. The DCI contains first indication information, which is used to indicate the number of repeated transmissions of the terminal PUSCH. The first indication information can be an MCS index value.

[0118] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of repeated transmissions of the PUSCH corresponding to the MCS index value contained in the received DCI based on the correspondence between the MCS index value and the number of repeated transmissions of the PUSCH.

[0119] The specific method by which this application indicates the number of times PUSCH is repeated through a valid MCS index value can be found in the detailed description of the method of indicating the number of times SRS is repeated through a valid MCS index value, which will not be repeated here.

[0120] It should be noted that the candidate values ​​for PUSCH are different from those for SRS. As mentioned above, the candidate values ​​for PUSCH are {1, 2, 4, 8}. Therefore, when indicating the number of repeated transmissions of SRS, the three states of the SRS candidate values ​​are indicated by the MCS index value. However, when indicating the number of repeated transmissions of PUSCH, the four states of PUSCH are indicated by the MCS index value.

[0121] Table 4 below shows a specific example of the correspondence between valid MCS index values ​​and the number of repeated transmissions of PUSCH:

[0122] Table 4

[0123] Valid MCS index value Number of retransmissions of PUSCH 0-6 8 7-13 4 14-20 2 21-27 1

[0124] It should be noted that the numerical values ​​in the correspondence described above and below are merely examples, and the embodiments of this application do not limit the specific values ​​of the MCS index value and the number of repeated transmissions of SRS and PUSCH.

[0125] Example 3, indicating the number of repeated transmissions of SRS and PUSCH simultaneously through a valid MCS index value;

[0126] The network-side device sends a DCI to the terminal device. The DCI contains first indication information, which is used to indicate to the terminal the number of repeated transmissions of SRS and PUSCH. The first indication information can be the MCS index value.

[0127] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of times the SRS corresponding to the MCS index value in the received DCI is repeatedly transmitted, based on the correspondence between the MCS index value and the number of times the SRS is repeatedly transmitted. It also determines the number of times the PUSCH corresponding to the MCS index value in the same received DCI is repeatedly transmitted, based on the correspondence between the MCS index value and the number of times the PUSCH is repeatedly transmitted.

[0128] When the effective MCS index value indicates the number of repeated transmissions of both SRS and PUSCH, the correspondence between the MCS index value and the number of repeated transmissions of SRS and the correspondence between the MCS index value and the number of repeated transmissions of PUSCH can be in the form of two separate lists (e.g., the forms of Tables 2 and 4 above), or they can be the same list, as shown in Table 5 below.

[0129] Table 5

[0130]

[0131]

[0132] [Instruction Method Two]

[0133] The redundant MCS index value indicates the number of repeated transmissions of SRS and / or PUSCH.

[0134] When using the redundant MCS index value to indicate the number of repeated transmissions of SRS and / or PUSCH, the network-side device may optionally not trigger this through additional signaling. Upon receiving the DCI, the terminal can determine the number of repeated transmissions of SRS and / or PUSCH based on the redundant MCS index value.

[0135] Similarly, embodiments of this application can indicate the number of repeated transmissions of SRS using redundant MCS index values, or the number of repeated transmissions of PUSCH using redundant MCS index values. Furthermore, the number of repeated transmissions of both SRS and PUSCH can be indicated using redundant MCS index values, as illustrated in the following examples:

[0136] Example 1: The number of repeated transmissions of SRS is indicated by the redundant MCS index value;

[0137] The network-side device sends a DCI to the terminal device. The DCI contains first indication information, which is used to indicate to the terminal the number of repeated transmissions of SRS. The first indication information can be a redundant MCS index value.

[0138] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of repeated transmissions of the SRS corresponding to the redundant MCS index value contained in the received DCI, based on the correspondence between the redundant MCS index value and the number of repeated transmissions of the SRS.

[0139] Specifically, as shown in Table 1 above, the redundant MCS index values ​​include 28-31, while the candidate values ​​for SRS are {1, 2, 4}. Therefore, when using the redundant MCS index values ​​to indicate the number of repeated transmissions of SRS, three index values ​​can be selected from the redundant MCS index values ​​28-31 to indicate the candidate values ​​of SRS. For example, the redundancy MCS index values ​​can be sorted from largest to smallest or smallest to largest, and the first three can be selected. Alternatively, three values ​​can be randomly selected from the redundant MCS index values ​​28-31 to indicate the number of repeated transmissions of SRS. For example, 28-30 can be selected to indicate different numbers of repeated transmissions of SRS, as shown in Table 6 below, which provides a specific example of the correspondence between the redundant MCS index values ​​28-30 and the number of repeated transmissions of SRS.

[0140] Table 6

[0141] Redundant MCS index values SRS retransmission count 28 1 29 2 30 4

[0142] Taking Table 6 as an example, assuming that the terminal receives the MCS index value of 29 from the DCI sent by the network-side device, the terminal determines that the number of repeated transmissions of the SRS corresponding to the MCS index value 29 is 2 according to the correspondence shown in Table 6, and then the terminal performs repeated transmission of the SRS according to the determined number of repeated transmissions of the SRS, which is 2.

[0143] Example 2 uses redundant MCS index values ​​to indicate the number of repeated transmissions of PUSCH;

[0144] The network-side device sends a DCI containing first indication information, which is used to indicate to the terminal the number of times the PUSCH is repeatedly transmitted. The first indication information can be a redundant MCS index value.

[0145] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of times the PUSCH is repeatedly transmitted corresponding to the redundant MCS index value contained in the received DCI, based on the correspondence between the redundant MCS index value and the number of times the PUSCH is repeatedly transmitted.

[0146] Table 7 below shows a specific example of the correspondence between redundant MCS index values ​​and the number of repeated transmissions of PUSCH:

[0147] Table 7

[0148] Redundant MCS index values Number of retransmissions of PUSCH 28 8 29 4 30 2 31 1

[0149] Example 3 uses redundant MCS index values ​​to indicate the number of repeated transmissions of both SRS and PUSCH.

[0150] The specific method of indicating the number of repeated transmissions of SRS and PUSCH using redundant MCS index values ​​can be found in the detailed description of the third example in the first indication method above, which will not be repeated here. Table 8 below shows a specific example of the correspondence between redundant MCS index values ​​and the number of repeated transmissions of SRS and PUSCH provided in this application.

[0151] Table 8

[0152] Redundant MCS index values SRS retransmission count Number of retransmissions of PUSCH 28 1 1 29 2 2 30 4 4 31 -- 8

[0153] The redundant MCS index value 31 may not be used to indicate the number of repeated transmissions of SRS, or it may be used to indicate one of the candidate values ​​of SRS, such as indicating 4. In other words, both the redundant MCS index values ​​30 and 31 are used to indicate that the number of repeated transmissions of SRS is 4.

[0154] If the redundant MCS index value 31 is not used to indicate the number of repeated transmissions of SRS, the terminal can obtain the number of repeated transmissions of SRS in other ways, such as through RRC signaling, through the methods described in other implementations of this application, or the terminal infers that the current channel quality is poor based on the number of transmissions of PUSCH and determines that the number of repeated transmissions of SRS will also increase accordingly, such as determining that the number of repeated transmissions of SRS is 4.

[0155] The above describes how to indicate the different number of repeated transmissions of SRS and / or PUSCH using existing fields (MCS index) in DCI. This application can also indicate the number of repeated transmissions of SRS and / or PUSCH using extended fields in DCI, such as two newly added bits in DCI. The following describes the specific method of indicating the number of repeated transmissions of SRS and / or PUSCH using extended fields in DCI through implementation method two.

[0156] The above is a detailed introduction to the indication methods included in implementation method one. The following is a detailed introduction and explanation of the indication methods included in implementation method two:

[0157] [Instruction Method Three]

[0158] The value of the first indication information carried by the extended field in DCI directly indicates the number of repeated transmissions of SRS and / or PUSCH.

[0159] The network-side device sends a Data Interpretation Code (DCI) to the terminal. This DCI contains first indication information, which is carried in an extended field of the DCI. This first indication information instructs the terminal to determine the number of repeated transmissions of the SRS and / or PUSCH based on the first indication information. Correspondingly, the terminal receives the DCI sent by the network-side device and determines the number of repeated transmissions of the SRS and / or PUSCH based on the value of the first indication information carried in the extended field of the DCI.

[0160] Similarly, in embodiments of this application, the value of the first indication information can be used to directly indicate the number of repeated transmissions of SRS; or the value of the first indication information can be used to directly indicate the number of repeated transmissions of PUSCH; or the value of the first indication information can be used to directly indicate the number of repeated transmissions of both SRS and PUSCH. Specific examples are as follows:

[0161] Example 1: The value of the first indication information carried by the extended field of DCI is the value of the number of repeated transmissions of the indicated SRS;

[0162] Specifically, the extended field can be a newly added bit field in DCI. The value (decimal value) of the bit (0 or 1) of the first indication information bit carried on the extended field indicates the number of times the SRS is repeatedly transmitted.

[0163] Since the candidate values ​​for SRS are {1, 2, 4}, when the number of SRS retransmissions is represented by the value of a bit in the first indication information, this first indication information has at least one bit, and the number of bits in the first indication information can be flexibly adjusted according to the indicated number of SRS retransmissions. For example, when the value of a bit in the first indication information is 1, the indicated number of SRS retransmissions is 1. As another example, when the value of a bit in the first indication information is 2, the indicated number of SRS retransmissions is 2. And as yet another example, when the value of a bit in the first indication information is 4, the indicated number of SRS retransmissions is 4.

[0164] After receiving the DCI sent from the network-side device, the terminal determines the number of times the SRS is repeated based on the value of the first indication information carried on the extended field of the DCI, and performs repeated transmission of the SRS according to the determined number of times the SRS is repeated.

[0165] It should be noted that, in this embodiment of the application, when the first indication information is carried through the DCI extended field, the number of bits in the extended field can be fixed or can be flexibly varied according to the indication value corresponding to the first indication information. These will be explained below:

[0166] 1) The number of bits in the extended field is fixed. For example, when the first indication information of the DCI indicates the candidate values ​​of SRS {1, 2, 4}, the corresponding values ​​of the extended field are 1, 2, and 4. For instance, when the value of the extended field is 1, the extended field has at least 1 bit. Assuming it is 1 bit, the bit value of that bit is 1. Assuming the extended field has 2 bits, the bit value of those 2 bits is 01, and so on. For another example, when the value of the extended field is 4, the extended field has at least 3 bits. Assuming it is 3 bits... If the 3 bits have a value of 100, and the 4 bits have a value of 0100, and so on, then when using a fixed-bit extension field to indicate the number of repetitions of SRS, the minimum number of bits for the extension field is determined to be 3, based on the maximum value of 4 that needs to be obtained. That is, when the bit map of the extension field is 001, it indicates that the number of repetitions of SRS is 1; when the bit map of the extension field is 010, it indicates that the number of repetitions of SRS is 2; and when the bit map of the extension field is 100, it indicates that the number of repetitions of SRS is 4.

[0167] The above method, because the extended field has a fixed number of bits, that is, the DCI containing the first indication information has a fixed format, makes the terminal less complex when blindly detecting the DCI, but at the same time, it may increase resource overhead when the number of repetitions of the indication SRS is 1 or 2.

[0168] 2) When the number of bits in the extended field is a variable value, for example, taking the above example of indicating the number of repetitions of SRS by the value of the extended field of DCI, when the number of repetitions of SRS is 1, the bit map of the extended field in DCI is 1; when the number of repetitions of SRS is 2, the bit map of the extended field in DCI is 10; when the number of repetitions of SRS is 4, the bit map of the extended field in DCI is 100.

[0169] In the above method, it is obvious that the fewer bits the first indication information has, the less resources the first indication information occupies in DCI. When indicating the number of repeated transmissions through flexible extended fields, resource overhead can be saved. However, when indicating different number of repeated transmissions, the format of DCI may also change, which increases the complexity of UE in blind detection of DCI.

[0170] In the following text, when the first indication information is carried by the extended field, the number of bits in the extended field can be fixed or flexibly varied. The method for determining the number of bits in the extended field under different conditions can be found in the specific description above. Similar cases will not be repeated below.

[0171] Example 2: The value of the first indication information carried by the extended field of DCI is the value of the number of repeated transmissions of the indicated PUSCH.

[0172] In this example, after receiving the DCI sent from the network-side device, the terminal determines the number of times the PUSCH will be repeatedly transmitted based on the value of the bit in the first indication information bit carried on the extended field of the DCI, and performs repeated transmission of the PUSCH according to the determined number of times the PUSCH will be repeatedly transmitted.

[0173] The specific method by which the value of the first indication information carried by the extended field of DCI directly indicates the number of repeated transmissions of PUSCH can be found in the detailed description of the first example in the above indication method three, which will not be repeated here.

[0174] Example 3 shows the value of the first indication information carried by the extended field of DCI, which also indicates the number of repeated transmissions of SRS and PUSCH.

[0175] In this example, the terminal determines the number of repeated transmissions of SRS and PUSCH based on the value of the first indication information received from the network-side device's DCI. For example, when the value of a bit in the first indication information is 1, it indicates that the number of repeated transmissions of SRS and PUSCH is both 1. As another example, when the value of a bit in the corresponding bit of the first indication information is 2, it indicates that the number of repeated transmissions of SRS and PUSCH is both 2. And as yet another example, when the value of a bit in the corresponding bit of the first indication information is 4, it indicates that the number of repeated transmissions of SRS and PUSCH is both 4. For example, when the value of the bit corresponding to the first indication information is 8, it indicates that the number of repeated transmissions of PUSCH is 8. Since the candidate values ​​of SRS are {1, 2, 4}, when the value of the bit corresponding to the first indication information is 8, it may not be used to indicate the number of repeated transmissions of SRS. Alternatively, the terminal may select a number of repeated transmissions of 4, which is close to the value of the first indication information, as the determined number of repeated transmissions of SRS. Or it may be determined by other methods described in this application. This application does not limit this.

[0176] [Instruction Method Four]

[0177] The number of repeated transmissions of SRS and / or PUSCH is implicitly indicated by the value index of the repeated transmission count of SRS and / or PUSCH carried by the first indication information carried in the extended field of DCI.

[0178] The network-side device sends a Data Interpretation Code (DCI) to the terminal. This DCI contains first indication information, which may be carried in an extended field of the DCI and indicates the number of retransmissions of the SRS and / or PUSCH. Correspondingly, the terminal receives the DCI sent by the network-side device and, based on the correspondence between the first indication information and the number of retransmissions of the SRS and / or PUSCH, determines the number of retransmissions of the SRS and / or PUSCH corresponding to the first indication information contained in the received DCI.

[0179] Similarly, this application can implicitly indicate the number of repeated transmissions of SRS, or implicitly indicate the number of repeated transmissions of PUSCH through the first indication information, or implicitly indicate the number of repeated transmissions of both SRS and PUSCH through the first indication information. Specific examples are as follows:

[0180] Example 1: The number of repeated transmissions of SRS is implicitly indicated by the value index of the first indication information carried in the extended field of DCI;

[0181] Taking the candidate value of SRS as {1, 2, 4} as an example, assuming that the first indication information has 2 bits, when the bits on these 2 bits are different, the number of repeated transmissions of the corresponding SRS will also be different. As shown in Table 9 below, this application provides a correspondence between the value index of the first indication information carried on the extended field and the number of repeated transmissions of SRS.

[0182] Table 9

[0183]

[0184]

[0185] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of SRS retransmissions corresponding to the bit value of the first indication information in the received DCI based on the preset correspondence between the first indication information and the number of retransmissions of the SRS. For example, taking Table 9 as an example, if the bit value of the first indication information in the DCI sent by the network-side device is 01, then the terminal determines that the number of SRS retransmissions corresponding to the bit value 01 is 2 according to the correspondence shown in Table 9, that is, the terminal determines that the number of SRS retransmissions is 2.

[0186] Example 2: The number of times PUSCH is repeatedly transmitted is implicitly indicated by the value index of the first indication information carried on the DCI extended field;

[0187] Taking the candidate values ​​of the number of repeated transmissions of PUSCH as {1, 2, 4, 8} as an example, assuming that the first indication information has 2 bits, the number of repeated transmissions of PUSCH will be different when the bits on the 2 bits are different. As shown in Table 10 below, this application provides a correspondence between the value index of the first indication information carried on the extended field and the number of repeated transmissions of PUSCH.

[0188] Table 10

[0189] First instruction information (2 bits) Number of retransmissions of PUSCH 00 1 01 2 10 4 11 8

[0190] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of times the PUSCH is repeatedly transmitted based on the predefined correspondence between the value index of the first indication information and the number of times the PUSCH is repeatedly transmitted.

[0191] Example 3 implicitly indicates both the number of repeated transmissions of SRS and the number of repeated transmissions of PUSCH by using the value index of the first indication information carried on the DCI extended field.

[0192] As shown in Table 11 below, this application provides a correspondence between the value index of the first indication information carried on an extended field and the number of repeated transmissions of SRS and PUSCH.

[0193] Table 11

[0194] First instruction information (2 bits) SRS retransmission count Number of retransmissions of PUSCH 00 1 1 01 2 2 10 4 4 11 -- 8

[0195] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the number of repeated transmissions of SRS and PUSCH corresponding to the bit values ​​of the first indication information in the received DCI, based on the predefined correspondence between the value index of the first indication information and the number of repeated transmissions of SRS, and the correspondence between the value index of the first indication information and the number of repeated transmissions of PUSCH.

[0196] It should be noted that Table 11 above is only an example. When the DCI simultaneously indicates the number of repetitions of SRS and PUSCH, the correspondence between the first indication information in the DCI and the number of repetitions of SRS, and the correspondence between the first indication information in the DCI and the number of repetitions of PUSCH, can be placed in the same carrier or in different carriers. For example, if the carrier is in list form, the correspondence between the first indication information and the number of repetitions of SRS, and the correspondence between the first indication information and the number of repetitions of PUSCH, can be placed in the same list, as shown in Table 11. Alternatively, the correspondence between the first indication information and the number of repetitions of SRS, and the correspondence between the first indication information and the number of repetitions of PUSCH, can be placed in different lists, as shown in Lists 9 and 10. This application does not limit this, and similar methods will not be repeated below. In addition, when the bit value of the first indication information carried by the extended field is 11, it may not be used to indicate the number of repetitions of SRS, or it may be used to indicate that the number of repetitions of SRS is any one of 1, 2, or 4, such as 4.

[0197] The following section introduces the instruction methods included in implementation method three.

[0198]

Instruction Method Five

[0199] The adjustment value indicated by the first indication information in DCI is used to adjust the first repeated transmission number of SRS and / or PUSCH indicated by the second indication information in RRC signaling;

[0200] The network-side device sends RRC signaling to the terminal. This RRC signaling includes the first number of repeated transmissions of SRS and / or PUSCH, and the network-side device instructs the terminal to adjust the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information via the first indication information in the DCI. The first indication information can be carried in an extended field in the DCI or in the redundant MCS index value.

[0201] Correspondingly, the terminal receives RRC signaling and DCI sent by the network-side device, and determines the adjustment value corresponding to the first indication information in the DCI according to the preset correspondence between the first indication information and different adjustment values. The terminal adjusts the first repeated transmission count of SRS and / or PUSCH indicated by the RRC information according to the adjustment value to determine the final repeated transmission count of SRS and / or PUSCH. For example, the terminal increases or decreases the adjustment value indicated by the first indication information based on the first repeated transmission count of SRS and / or PUSCH indicated by the second indication information in the RRC signaling, and determines the final repeated transmission count of SRS and / or PUSCH based on the adjusted value.

[0202] Similarly, embodiments of this application can use the first instruction information to indicate the adjustment value of the first repeated transmission count of SRS; or use the first instruction information to indicate the adjustment value of the first repeated transmission count of PUSCH; or use the first instruction information to indicate the adjustment value of the first repeated transmission count of both SRS and PUSCH, as shown in the following specific examples:

[0203] Example 1: The adjustment value for the first repeated transmission of SRS (hereinafter referred to as the SRS adjustment value) is indicated by the first indication information in DCI;

[0204] Specifically, the first indication information is an indication value, which corresponds to an adjustment value. The first indication information has at least two bits. The following example illustrates the correspondence between the indication value and the adjustment value of the first indication information using two bits. Assuming that the first indication information has at least two bits, the first indication information can be carried on the extended field of DCI, as shown in Table 12 below, which is an example provided by this application to represent the correspondence between the indication value and the adjustment value of the first indication information.

[0205] Table 12

[0206] First instruction information (2 bits) SRS adjustment value 00 -2 01 -1 10 1 11 2

[0207] The first indication information can also be a redundant MCS index value, as shown in Table 13 below, which is a specific example of the correspondence between a redundant MCS index value and an SRS adjustment value provided in this application.

[0208] Table 13

[0209] Redundant MCS index values SRS adjustment value 28 -2 29 -1 30 1 31 2

[0210] Correspondingly, after receiving the RRC signaling and DCI sent by the network-side device, the terminal adjusts the first retransmission count of the SRS indicated by the second indication information according to the adjustment value indicated by the first indication information in the DCI, so as to determine the final retransmission count of the SRS. The adjustment process is illustrated below with an example:

[0211] Taking Table 12 as an example, assuming that the second indication information in the RRC signaling received by the terminal indicates that the first repeated transmission number of SRS is 4, and the indication value of the first indication information of DCI is 00, the terminal determines the adjustment value corresponding to the first indication information as -2 according to the correspondence shown in Table 12. Then, the terminal adjusts the first repeated transmission number of SRS indicated by the second indication information to 4 according to the adjustment value -2. The adjusted repeated transmission number of SRS is 4-2=2.

[0212] It should be noted that if the adjusted number of repeated transmissions of the SRS is a candidate value, the terminal determines the adjusted number of repeated transmissions of the SRS as the final number of repeated transmissions of the SRS; if the adjusted number of repeated transmissions of the SRS is not a candidate value, the terminal also needs to select a value from the candidate values ​​of the SRS based on the adjusted number of repeated transmissions of the SRS as the final number of repeated transmissions of the SRS.

[0213] For example, taking Table 12 as an example, assuming that the second indication information in the RRC signaling received by the terminal indicates that the first repeated transmission number of SRS is 4, and the indication value of the first indication information of DCI is 01, the terminal determines the adjustment value corresponding to the first indication information as -1 according to the correspondence shown in Table 12. Then, the terminal adjusts the first repeated transmission number of SRS indicated by the second indication information to 4 according to the adjustment value -1. The adjusted repeated transmission number of SRS is 4-1=3.

[0214] Since the candidate values ​​for the number of repeated transmissions of SRS are {1, 2, 4}, and the adjusted number of repeated transmissions of SRS is 3, which is not a candidate value, the terminal still needs to select a value from the candidate values ​​of SRS as the final number of repeated transmissions of SRS based on the adjusted number of repeated transmissions of SRS. There are several ways to select the value; two are listed below:

[0215] Select Method 1 and scroll down;

[0216] That is, from the candidate values, the candidate value that is adjacent to the number of repeated transmissions of the adjusted SRS and is less than the number of repeated transmissions of the adjusted SRS is selected as the final number of repeated transmissions of the SRS.

[0217] For example, if the number of repeated transmissions of the adjusted SRS is 3, then by selecting downwards, candidate value 2, which is adjacent to and less than 3 in the candidate value {1, 2, 4}, is selected as the final number of repeated transmissions of the SRS.

[0218] Choose option two: Select upwards;

[0219] That is, from the candidate values, the candidate value that is adjacent to the number of repeated transmissions of the adjusted SRS and is greater than the number of repeated transmissions of the adjusted SRS is selected as the final number of repeated transmissions of the SRS.

[0220] For example, if the adjusted SRS retransmission count is 3, then by selecting upwards, candidate value 4, which is adjacent to and greater than 3 in the candidate values ​​{1, 2, 4}, is selected as the final SRS retransmission count. Clearly, the final SRS retransmission count of 4 determined by selection method two is the first SRS retransmission count of 4 indicated by the second indication information in the RRC signaling, which is equivalent to no adjustment. Therefore, the terminal can determine the final retransmission count according to the preset selection method, or it can flexibly choose a selection method to determine the final retransmission count.

[0221] It should be noted that if the first indication information of the DCI is only used to indicate the adjustment value of the first repeated transmission number of the SRS, then the terminal only adjusts the first repeated transmission number of the SRS indicated by the second indication information in the RRC signaling, and does not need to adjust the first repeated transmission number of the PUSCH indicated by the second indication information. The terminal can perform repeated transmission of the PUSCH according to the first repeated transmission number of the PUSCH indicated by the second indication information.

[0222] Example 2: The adjustment value for the first repeated transmission of PUSCH (hereinafter referred to as the PUSCH adjustment value) is indicated by the first indication information in DCI;

[0223] The specific method by which this application adjusts the first repetition number of PUSCH indicated by the second indication information in RRC signaling through the adjustment value indicated by the first indication information in DCI can be found in the detailed description of Example 1 above, and will not be repeated here.

[0224] Example 3: The adjustment values ​​for the first repeated transmission count of SRS and the first repeated transmission count of PUSCH are indicated by the first indication information in DCI;

[0225] Table 14 below shows an example of the correspondence between the first indication information and the adjustment values ​​of SRS and PUSCH.

[0226] Table 14

[0227] First instruction information (2 bits) SRS adjustment value PUSCH adjustment value 00 -2 -3 01 -1 -2 10 1 2 11 2 3

[0228] It should be noted that Table 12 above is merely illustrative. The adjustment value for the first repeated transmission count of PUSCH indicated by the first indication information and the adjustment value for the first repeated transmission count of SRS can be the same or different. This application embodiment does not limit how the first indication information indicates the adjustment values ​​of the two. In addition, the lists shown in this application are all examples only. This application does not limit the specific values ​​or bit values ​​corresponding to the repeated transmission counts of SRS and PUSCH or the adjustment values ​​of SRS and PUSCH. Any method that can indicate different repeated transmission counts of SRS and / or PUSCH through different values ​​is applicable to the embodiments of this application.

[0229] Correspondingly, after receiving the DCI sent by the network-side device, the terminal determines the SRS adjustment value corresponding to the first indication information in the received DCI based on the correspondence between the first indication information and the SRS adjustment value. Then, based on the SRS adjustment value and the first repeated transmission count of the SRS indicated by the second indication information in the RRC signaling, the terminal obtains the final number of repeated transmissions of the SRS. For specific steps, please refer to the description in Example 1; they will not be repeated here. Similarly, the terminal determines the PUSCH adjustment value corresponding to the first indication information in the received DCI based on the correspondence between the first indication information and the PUSCH adjustment value. Then, based on the PUSCH adjustment value and the first repeated transmission count of the PUSCH indicated by the second indication information, the terminal obtains the final number of repeated transmissions of the PUSCH. For specific steps, please refer to the description in Example 2; they will not be repeated here.

[0230] [Instruction Method Six]

[0231] The final number of SRS retransmissions is selected from the candidate values ​​of SRS by using the adjustment value indicated by the first indication information in DCI and the first number of SRS retransmissions indicated by the second indication information in RRC signaling.

[0232] The network-side device sends RRC signaling to the terminal. This RRC signaling includes the first number of repeated transmissions of SRS and / or PUSCH, and sends DCI to the terminal. The DCI contains first indication information, which instructs the terminal to select one of the three candidate values ​​for SRS, excluding the first number of repeated transmissions of SRS indicated by the RRC information, as the final number of repeated transmissions of SRS. In other words, the first number of repeated transmissions of SRS indicated by the second indication information is removed from the candidate values ​​of SRS, and then, according to the indication in the DCI, one of the remaining two candidate values ​​is selected as the final number of repeated transmissions of SRS.

[0233] Correspondingly, the terminal receives the RRC signaling and DCI sent by the network-side device. According to the first indication information of the DCI, the terminal removes the first repeated transmission number of SRS from the candidate values ​​of SRS. According to the selection rule corresponding to the first indication information, the terminal selects one of the remaining two candidate values ​​of SRS as the final repeated transmission number of SRS. The terminal performs repeated transmission of SRS according to the final repeated transmission number of SRS.

[0234] The first indication information may be carried in an extended field in the DCI or the first indication information may be a redundant MCS index value.

[0235] For example, if the first indication information is carried on the extended field of the DCI, the first indication information has at least 1 bit, that is, the extended field has at least 1 bit. Assuming that the first indication information is 1 bit, the bit value on the 1 bit corresponds to different selection rules. For example, if the bit value on the bit is 1, the corresponding selection rule is to select the larger value among the remaining two candidate values ​​as the final number of repeated transmissions of the SRS. If the bit value on the bit is 0, the selection rule is to select the smaller value among the remaining two candidate values ​​as the final number of repeated transmissions of the SRS.

[0236] The following example illustrates the process by which the terminal determines the final number of SRS retransmissions from the candidate values ​​of SRS based on the first indication information, using an extended field that carries the first indication information and has 1 bit:

[0237] For example, assuming the bit value of the first indication information bit in the DCI is 0, the selection rule is to remove the first repeated transmission count of the SRS indicated by the second indication information in the RRC signaling from the three candidate values ​​of the SRS, and then select the larger value from the remaining two candidate values ​​as the final repeated transmission count of the SRS. When the bit value of this bit is 1, the selection rule is to remove the first repeated transmission count of the SRS indicated by the second indication information from the three candidate values ​​of the SRS, and then select the smaller value from the remaining two candidate values ​​as the final repeated transmission count of the SRS.

[0238] The terminal receives RRC and DCI signaling from the network-side device. The second indication information in the RRC signaling indicates that the number of repeated transmissions of SRS is 2, and the bit value of the corresponding bit in the first indication information in the DCI signaling is 0. Then, the terminal removes 2 from the candidate values ​​of SRS {1, 2, 4} and selects the larger value 4 from {1, 4} as the final number of repeated transmissions of SRS. The terminal performs repeated transmissions of SRS according to the final number of repeated transmissions of SRS, that is, it continuously sends 4 SRSs in the same slot.

[0239] It should be noted that the above are merely examples and do not limit the bit values ​​corresponding to different selection rules. The same selection rule can correspond to different bit values, but different bit values ​​on that bit position correspond to different selection rules.

[0240] As another example, the first indication information can also be a redundant MCS index value. For example, when the redundant MCS index value is 28, the corresponding selection rule is to select the larger value among the remaining two candidate values ​​as the final number of repeated transmissions of the SRS. If the redundant MCS index value is 29, the corresponding selection rule is to select the larger value among the remaining two candidate values ​​as the final number of repeated transmissions of the SRS.

[0241] Based on the same concept, this application can also use a redundant MCS index value to instruct the terminal to select the final number of repeated transmissions of PUSCH from the candidate values ​​of PUSCH. For example, when the redundant MCS index value is 28, it instructs the terminal to remove the first number of repeated transmissions of PUSCH indicated by the second indication information from the candidate values ​​{1, 2, 4, 8} of PUSCH, and then select the first value (that is, the smallest value among the remaining 3 values) as the final number of repeated transmissions of PUSCH; when the redundant MCS index value is 29, it instructs the terminal to... After removing the first repeated transmission count of PUSCH indicated by the second indication information from the candidate values ​​{1, 2, 4, 8} of PUSCH, the second value is selected from the remaining 3 candidate values ​​as the final repeated transmission count of PUSCH; when the redundancy MCS index value is 30, the terminal is instructed to remove the first repeated transmission count of PUSCH indicated by the second indication information from the candidate values ​​{1, 2, 4, 8} of PUSCH, and then select the third value (that is, the largest value among the remaining 3 values) from the remaining 3 candidate values ​​as the final repeated transmission count of PUSCH.

[0242] Similarly, this application can also indicate the selection method of SRS and PUSCH simultaneously through redundant MCS index values, as detailed in the above descriptions, which will not be repeated here.

[0243] [Instruction Method Seven]

[0244] When the DCI contains an indication of the number of repeated transmissions of SRS and / or PUSCH, the number of repeated transmissions of SRS and / or PUSCH indicated in the DCI is used directly; when the DCI does not contain an indication of the number of repeated transmissions of SRS and / or PUSCH, the number of repeated transmissions of SRS and / or PUSCH configured in the RRC is used.

[0245] Specifically, when the network-side device sends RRC signaling to the terminal indicating the first number of repeated transmissions of SRS and / or PUSCH, and the sent DCI contains first indication information for indicating the number of repeated transmissions of SRS and / or PUSCH, the terminal performs repeated transmissions according to the number of repeated transmissions of SRS and / or PUSCH indicated by the first indication information contained in the DCI. For example, if the first indication information is a value index of the number of repeated transmissions of SRS and / or PUSCH, the terminal determines the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index contained in the DCI based on the correspondence between the number of repeated transmissions of SRS and / or PUSCH and different value indices, and the terminal performs repeated transmissions according to the determined number of repeated transmissions of SRS and / or PUSCH.

[0246] Alternatively, if the network-side device sends an RRC signaling message to the terminal indicating the first number of repeated transmissions of SRS and / or PUSCH, and the DCI message sent afterward does not contain the first indication information for indicating or adjusting the number of repeated transmissions of SRS and / or PUSCH, then the terminal will perform repeated transmissions according to the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information in the RRC signaling message.

[0247] It should be noted that the different implementation methods described above, as well as the various specific indication or adjustment methods under different implementation methods, can all achieve the technical solution of this application that indicates the number of repeated transmissions of SRS and / or PUSCH through DCI. However, the specific indication method can be defined by the protocol or configured by the network-side device to the terminal. For example, during communication, the network-side device is configured through higher-layer signaling or physical-layer signaling. For instance, the network-side device sends configuration information for the indication method to the terminal through higher-layer signaling or physical-layer signaling. The terminal determines the specific implementation method or the specific DCI indication method based on the configuration information (see indication methods 1-7 above). For example, whether to indicate the number of repeated transmissions of SRS and / or PUSCH through the first indication information of DCI, or to indicate an adjustment to the first number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information in RRC signaling through the first indication information of DCI. Another example is whether to indicate the number of repeated transmissions of SRS and / or PUSCH through the redundant MCS index value, or through the valid MCS index value, etc. It should be understood that when the terminal determines the number of repeated transmissions of SRS and / or PUSCH indicated by the valid MCS index value based on the configuration information, it has the same effect as instructing the terminal to indicate the number of repeated transmissions of SRS and / or PUSCH by the valid MCS index value through the dynamic first indication information described above. In other words, the dynamic first indication information is a specific implementation method for configuring the number of repeated transmissions of SRS and / or PUSCH by the valid MCS index value. It should be noted that the configuration method of this information can be static, meaning that the network-side device only needs to configure it once for it to take effect permanently, or the configuration method can be dynamic, meaning that the network-side device can configure it in real time.

[0248] The above describes different methods by which the terminal determines the number of retransmissions for SRS and / or PUSCH. The following describes the process by which the terminal performs retransmissions based on the determined final number of retransmissions for SRS and PUSCH:

[0249] Specifically, regarding the repeated transmission process of SRS:

[0250] The terminal transmits the same SRS through one, two, or four consecutive time-domain symbols from the last six time-domain symbols of the same slot. The symbol that transmits the first SRS is not separated from the symbol carrying the data, and the four consecutive symbols cannot exceed the last six symbols of the slot.

[0251] In addition, if the number of repeated transmissions of SRS is greater than 1, after the terminal sends the first SRS, it uses the sending parameters of the first SRS to send subsequent SRSs until the number of SRSs sent through the same slot reaches the determined number of repeated transmissions of the SRS.

[0252] The transmission parameters include, but are not limited to: transmission power, antenna port, beam direction, and frequency domain resources.

[0253] For example, assuming the terminal determines that the final number of SRS retransmissions is 4, the terminal sends the same SRS through the last 4 consecutive symbols of the slot carrying the data in a slot, and these 4 symbols belong to the last 6 symbols of that slot.

[0254] The following describes the repeated transmission process of PUSCH:

[0255] The terminal transmits the same PUSCH through 1, 2, 4 or 8 consecutive uplink slots in the same radio frame. If the number of repeated transmissions of the final determined PUSCH is greater than 1, the terminal uses the transmission parameters of the first PUSCH to transmit subsequent PUSCHs until the number of PUSCHs transmitted through the same radio frame reaches the determined number of repeated transmissions of the PUSCH.

[0256] The transmission parameters include, but are not limited to: transmission power, antenna port, beam direction, and frequency domain resources.

[0257] The above primarily describes the solution provided in this application from the perspective of the interaction between network devices and terminal devices. It is understood that, to achieve the above functions, each network element includes corresponding hardware structures and / or software modules (or units) for executing each function. Those skilled in the art should readily recognize that, based on the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0258] When using integrated units (modules), Figure 4 This diagram illustrates a possible exemplary block diagram of a communication device 400 according to an embodiment of this application. The communication device 400 may exist in software form. The device 400 may include a processing unit 402 and a transceiver unit 403.

[0259] In one possible design, processing unit 402 is used to implement corresponding processing functions. Transceiver unit 403 is used to support communication between device 400 and other network entities. Optionally, transceiver unit 403 may include receiving unit and / or transceiver unit, respectively used to perform receiving and sending operations. Optionally, device 400 may also include storage unit 401 for storing program code and / or data of device 400.

[0260] The device 400 can be a terminal device in any of the above embodiments (for example, the terminal device is the network device in Embodiment 1), or it can be a component such as a chip disposed in the network device. The processing unit 402 can support the device 400 in performing the actions of the network device in the method examples above. Alternatively, the processing unit 402 mainly performs the internal actions of the network device in the method examples, and the transceiver unit 403 can support communication between the device 400 and the terminal device.

[0261] Specifically, in one possible design, the first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes a modulation and coding strategy (MCS) index value.

[0262] Specifically, in one possible design, when the first indication information is an MCS index value, the processing unit 402 is specifically used to: determine the number of repeated transmissions of the SRS and / or PUSCH corresponding to the MCS index value according to a first correspondence; wherein, the first correspondence includes the correspondence between different MCS index values ​​and different numbers of repeated transmissions of the SRS and / or PUSCH.

[0263] Specifically, in one possible design, when the first indication information is carried on an extended field in the DCI, the processing unit is specifically used to: determine the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field based on a second correspondence; wherein, the second correspondence includes the correspondence between different value indices and different repeated transmissions of SRS and / or PUSCH.

[0264] Specifically, in one possible design, when the first indication information is carried on an extended field in the DCI, the transceiver unit 403 is specifically used to: receive Radio Resource Control (RRC) signaling, the RRC signaling including second indication information, the second indication information being used to indicate the first number of repeated transmissions of SRS and / or PUSCH;

[0265] The processing unit 402 is specifically used to: determine the number of repeated transmissions of SRS and / or PUSCH according to the first indication information; or obtain the number of repeated transmissions of SRS and / or PUSCH using the adjustment value indicated by the first indication information and the first number of repeated transmissions of SRS and / or PUSCH.

[0266] Specifically, in one possible design, when the first indication information is an indication value, the processing unit 402 is further configured to: determine the adjustment value corresponding to the indication value according to a third correspondence; wherein, the third correspondence is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

[0267] Specifically, in one possible design, when the processing unit 402 obtains the number of repeated transmissions of the SRS and / or PUSCH using the adjustment value indicated by the first indication information and the first number of repeated transmissions of the SRS and / or PUSCH, it is specifically used to: select a candidate value from a plurality of preset candidate values, excluding the number of repeated transmissions of the SRS indicated by the second indication information in the RRC signaling, according to the first indication information, and use the selected candidate value as the determined number of repeated transmissions of the SRS.

[0268] In one possible design, the processing unit is specifically used to determine the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field based on a third correspondence; wherein the third correspondence includes the correspondence between different value indices and different repeated transmission numbers of SRS and / or PUSCH.

[0269] In one possible design, the transceiver unit is further configured to: if the number of repeated transmissions of the SRS is greater than 1, then use the transmission parameters of the first SRS to transmit subsequent SRSs until the number of SRSs transmitted through the same slot reaches a determined number of repeated transmissions of the SRS; or if the number of repeated transmissions of the PUSCH is greater than 1, then use the transmission parameters of the first PUSCH to transmit subsequent PUSCHs until the number of PUSCHs transmitted through the same radio frame reaches a determined number of repeated transmissions of the PUSCH.

[0270] The transmission parameters include: transmission power, antenna port, beam direction, and frequency domain resources.

[0271] like Figure 5 As shown in the figure, this application embodiment also provides a terminal device 500, which includes a processor 510, a memory 520 and a transceiver 530.

[0272] In one possible design, the memory 520 stores instructions, programs, or data, and can be used to implement the functions of the storage unit 401 in the above embodiments. The processor 510 is used to read the instructions, programs, or data stored in the memory 520. When the instructions or programs stored in the memory 520 are executed, the processor 510 is used to perform the operations performed by the processing unit 402 in the above embodiments, and the transceiver 530 is used to perform the operations performed by the transceiver unit 403 in the above embodiments.

[0273] It should be understood that the apparatus 400 or terminal device 500 in the embodiments of this application may correspond to the communication method in the embodiments of this application. Figure 2 or Figure 3 The terminal device in the device 400 or terminal device 500, and the operation and / or function of each module in the device 400 or terminal device 500 are respectively for realizing Figure 2 or Figure 3 For the sake of brevity, the corresponding processes of each method in the code will not be elaborated here.

[0274] When using integrated units (modules), Figure 6 This diagram illustrates a possible exemplary block diagram of a communication device 600 according to an embodiment of this application. The communication device 600 may exist in software form. The device 600 may include a processing unit 602 and a transmitting unit 603.

[0275] In one possible design, processing unit 602 is used to implement corresponding processing functions. Transmitting unit 603 is used to support communication between device 600 and other network entities. Optionally, transmitting unit 603 may include receiving unit and / or transceiver unit, respectively used to perform receiving and transmitting operations. Optionally, device 600 may also include storage unit 601 for storing program code and / or data of device 600.

[0276] The device 600 can be a network device in any of the above embodiments (for example, the network device in Embodiment 1), or it can be a component such as a chip disposed in the network device. The processing unit 602 can support the device 600 in performing the actions of the network device in the method examples above. Alternatively, the processing unit 602 can mainly perform the internal actions of the network device in the method examples, and the sending unit 603 can support communication between the device 600 and the terminal device.

[0277] Specifically, in one possible embodiment, the sending unit 603 sends a downlink control signaling (DCI) to the terminal. The DCI includes first indication information, which is used to indicate the number of retransmissions of the SRS and / or the Physical Uplink Shared Channel (PUSCH).

[0278] In one possible design, the first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes a modulation and coding strategy (MCS) index value.

[0279] In one possible design, the first indication information is an MCS index value; the first indication information is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value according to a first correspondence, wherein the first correspondence includes the correspondence between different MCS index values ​​and different numbers of repeated transmissions of SRS and / or PUSCH.

[0280] In one possible design, the first indication information is carried on an extended field in the DCI; the extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or the extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field based on the third correspondence; wherein the third correspondence includes the correspondence between different value indices and different repeated transmission numbers of SRS and / or PUSCH.

[0281] In one possible design, the transceiver unit is specifically configured to: send Radio Resource Control (RRC) signaling to the terminal, the RRC signaling including second indication information, the second indication information being used to indicate the number of repeated transmissions of SRS and / or PUSCH; the first indication information being used to indicate the number of repeated transmissions of SRS and / or PUSCH; or the first indication information being used to indicate an adjustment value for adjusting the number of repeated transmissions of SRS and / or PUSCH indicated by the second indication information, so that the terminal obtains the number of repeated transmissions of SRS and / or PUSCH based on the adjustment value and the first number of repeated transmissions of SRS and / or PUSCH indicated by the received second indication information.

[0282] In one possible design, the first indication information is an indication value; the indication value is used by the terminal to determine the adjustment value corresponding to the indication value according to a third correspondence; wherein, the third correspondence is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

[0283] In one possible design, the first indication information is used to instruct the terminal to select a candidate value from a plurality of preset candidate values, excluding the number of repeated transmissions of the SRS indicated by the second indication information in the RRC signaling, and to use the selected candidate value as the determined number of repeated transmissions of the SRS.

[0284] like Figure 7 As shown in the figure, this application embodiment also provides a network side device 700, which includes a processor 710, a memory 720 and a transceiver 730.

[0285] In one possible design, the memory 720 stores instructions, programs, or data, and can be used to implement the functions of the storage unit 601 in the above embodiments. The processor 710 is used to read the instructions, programs, or data stored in the memory 720. When the instructions or programs stored in the memory 720 are executed, the processor 710 is used to perform the operations performed by the processing unit 602 in the above embodiments, and the transceiver 730 is used to perform the operations performed by the sending unit 603 in the above embodiments.

[0286] It should be understood that the apparatus 600 or terminal device 700 in the embodiments of this application may correspond to the communication method in the embodiments of this application. Figure 2 or Figure 3 The network-side equipment in the device 600 and the operation and / or function of each module in the terminal device 700 are respectively for implementing Figure 2 or Figure 3 For the sake of brevity, the corresponding processes of each method in the code will not be elaborated here.

[0287] This application also provides a communication device, which can be a terminal device or a circuit. This communication device can be used to perform the actions performed by the terminal device in the above method embodiments.

[0288] When the communication device is a terminal device Figure 8 A simplified schematic diagram of a terminal device is shown. This is for ease of understanding and illustration. Figure 8 In this context, the terminal device is taken as a mobile phone. For example... Figure 8 As shown, the terminal device includes a processor, memory, radio frequency (RF) circuitry, antenna, and input / output devices. The processor is primarily used for processing communication protocols and data, controlling the terminal device, executing software programs, and processing software program data. The memory is mainly used to store software programs and data. The RF circuitry is mainly used for converting baseband signals to RF signals and processing RF signals. The antenna is mainly used for transmitting and receiving RF signals in the form of electromagnetic waves. Input / output devices, such as touchscreens, displays, and keyboards, are mainly used to receive user input data and output data to the user. It should be noted that some types of terminal devices may not have input / output devices.

[0289] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outward as electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor. The processor then converts the baseband signal back into data and processes it. For ease of explanation, Figure 8 Only one memory and processor are shown in the illustration. In actual terminal device products, there may be one or more processors and one or more memories. Memory may also be referred to as storage medium or storage device, etc. Memory may be set up independently of the processor or integrated with the processor; this application does not limit this.

[0290] In the embodiments of this application, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit (or communication unit) of the terminal device, and the processor with processing functions can be regarded as the processing unit of the terminal device. For example... Figure 8 As shown, the terminal device includes a transceiver unit 810 and a processing unit 820. The transceiver unit can also be called a transceiver, transceiver machine, transceiver device, etc. The processing unit can also be called a processor, processing board, processing module, processing device, etc. Optionally, the device in the transceiver unit 810 used to implement the receiving function can be considered as a receiving unit, and the device in the transceiver unit 810 used to implement the transmitting function can be considered as a transceiver unit; that is, the transceiver unit 810 includes both a receiving unit and a transceiver unit. The transceiver unit can sometimes also be called a transceiver machine, transceiver, or transceiver circuit, etc. The receiving unit can sometimes be called a receiver, receiver, or receiving circuit, etc. The transceiver unit can sometimes be called a transmitter, transmitter, or transmitting circuit, etc.

[0291] It should be understood that the transceiver unit 810 is used to perform the sending and receiving operations on the terminal device side in the above method embodiments, and the processing unit 820 is used to perform other operations on the terminal device in the above method embodiments besides the sending and receiving operations.

[0292] When the communication device is a chip-based device or circuit, it may include a transceiver unit and a processing unit. The transceiver unit may be an input / output circuit and / or a communication interface; the processing unit may be an integrated processor, microprocessor, or integrated circuit.

[0293] As another embodiment of this invention, a computer-readable storage medium is provided, on which instructions are stored, which, when executed, can perform the methods on the terminal device side of the above method embodiments.

[0294] As another form of this embodiment, a computer program product containing instructions is provided, which, when executed, can perform the method on the terminal device side in the above method embodiment.

[0295] As another embodiment of this invention, a chip is provided, which is coupled to a memory for reading and executing instructions stored in the memory. When the instructions are executed, they can perform the methods on the terminal device side in the above method embodiments.

[0296] When the device in this embodiment is a network device, the network device can be as follows: Figure 9 As shown, the device 900 includes one or more radio frequency units, such as a remote radio unit (RRU) 910 and one or more baseband units (BBUs) (also referred to as digital units, DUs) 920. The RRU 910 can be referred to as a transceiver unit, and... Figure 6 Corresponding to the transmitting unit 603, optionally, this transceiver unit can also be called a transceiver, transceiver circuit, or transceiver, etc., and may include at least one antenna 911 and a radio frequency unit 912. The RRU 910 part is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals to baseband signals, such as for sending configuration information to terminal equipment. The BBU 920 part is mainly used for baseband processing and controlling the base station, etc. The RRU 910 and BBU 920 can be physically set together or physically separated, i.e., a distributed base station.

[0297] The BBU 920 is the control center of the base station, also known as the processing module, and can communicate with... Figure 9 The processing unit 902 in the diagram is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spreading, etc. For example, the BBU (processing module) can be used to control the base station to execute the operation procedures of the network device in the above method embodiment, such as generating the first indication information mentioned above.

[0298] In one example, the BBU 920 can be composed of one or more boards. Multiple boards can collectively support a single access standard wireless access network (such as an LTE network), or they can each support different access standards wireless access networks (such as LTE, 5G, or other networks). The BBU 920 also includes a memory 921 and a processor 922. The memory 921 is used to store necessary instructions and data. The processor 922 is used to control the base station to perform necessary actions, such as controlling the base station to execute the operation procedures related to the network device in the above method embodiments. The memory 921 and processor 922 can serve one or more boards. That is, each board can have its own memory and processor, or multiple boards can share the same memory and processor. Furthermore, each board can also have necessary circuitry.

[0299] As another embodiment of this invention, a computer-readable storage medium is provided, on which instructions are stored, which, when executed, can perform the method on the network device side of the above method embodiment.

[0300] As another form of this embodiment, a computer program product containing instructions is provided, which, when executed, can perform the method on the network device side of the above method embodiment.

[0301] As another embodiment of this invention, a chip is provided, which is coupled to a memory for reading and executing instructions stored in the memory. When the instructions are executed, they can perform the methods on the network device side in the above method embodiments.

[0302] In implementation, each step of the method provided in this embodiment can be completed by integrated logic circuits in the processor or by instructions in software form. The steps of the method disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules in the processor.

[0303] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method embodiments can be completed by the integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose central processing unit (CPU), a general-purpose processor, a digital signal processing unit (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof; it can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc.

[0304] It is understood that the memory or storage unit in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0305] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server integrating one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a DVD; or it can be a semiconductor medium, such as a solid-state disk (SSD).

[0306] The various illustrative logic units and circuits described in the embodiments of this application can be implemented or operate the described functions using a general-purpose processor, digital signal processor, application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The general-purpose processor can be a microprocessor; alternatively, it can also be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented using a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0307] The steps of the methods or algorithms described in the embodiments of this application can be directly embedded in hardware, software units executed by a processor, or a combination of both. The software units can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium in the art. Exemplarily, the storage medium can be connected to the processor so that the processor can read information from and write information to the storage medium. Optionally, the storage medium can also be integrated into the processor. The processor and storage medium can be housed in an ASIC, which can be housed in a terminal device. Optionally, the processor and storage medium can also be housed in different components within the terminal device.

[0308] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0309] It should be understood that the phrase "an embodiment" or "one embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in one embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence number of the above-described processes does not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0310] Furthermore, the terms "system" and "network" are often used interchangeably in this paper. The term "and / or" in this paper merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " in this paper generally indicates that the preceding and following related objects have an "or" relationship.

[0311] It should be understood that in the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0312] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this application.

[0313] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0314] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the couplings or direct couplings or communication connections shown or discussed may be indirect couplings or communication connections through some interfaces, apparatuses, or units, or they may be electrical, mechanical, or other forms of connection.

[0315] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of this application, depending on actual needs.

[0316] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0317] From the above description of the embodiments, those skilled in the art will clearly understand that this application can be implemented in hardware, firmware, or a combination thereof. When implemented in software, the above-described functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transmission of a computer program from one place to another. Storage media can be any available medium accessible to a computer. For example, but not limited to, computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible to a computer. Furthermore, any connection can suitably be a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the scope of the medium. As used in this application, disk and disc include optical discs (CD), laser discs, optical discs, digital versatile discs (DVD), floppy disks, and Blu-ray discs, wherein disks typically magnetically copy data, while discs optically copy data using lasers. The combinations above should also be included within the scope of protection for computer-readable media.

[0318] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for indicating the number of repeated transmissions, characterized in that, include: The terminal receives downlink control signaling (DCI), which includes first indication information, wherein the first indication information is used by the terminal to determine the number of repeated transmissions of the sounding reference signal (SRS) and / or the physical uplink shared channel (PUSCH). The terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information; Also includes: The terminal receives Radio Resource Control (RRC) signaling, the RRC signaling containing second indication information, the second indication information being used to indicate the first number of repeated transmissions of SRS and / or PUSCH; The terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information, including: The terminal uses the adjustment value indicated by the first indication information and the first repeated transmission number of SRS and / or PUSCH indicated by the second indication information to obtain the repeated transmission number of SRS and / or PUSCH.

2. The method as described in claim 1, characterized in that, The first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes the modulation and coding strategy (MCS) index value.

3. The method as described in claim 2, characterized in that, The first indication information is the MCS index value; The terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information, including: The terminal determines the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value according to the first correspondence relationship; wherein, the first correspondence relationship includes the correspondence relationship between different MCS index values ​​and different repeated transmission numbers of SRS and / or PUSCH.

4. The method as described in claim 2, characterized in that, The first indication information is carried in an extended field of the DCI; The terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the first indication information, including: The terminal determines the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or The terminal determines the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field according to the second correspondence; wherein, the second correspondence includes the correspondence between different value indices of the extended field and different repeated transmissions of SRS and / or PUSCH.

5. The method as described in claim 1, characterized in that, The first indication information is an indication value; the method further includes: The terminal determines the adjustment value corresponding to the indication value according to the third correspondence relationship; wherein, the third correspondence relationship is the correspondence between different indication values ​​and different adjustment values ​​that adjust the first repeated transmission number of SRS and / or PUSCH.

6. The method as described in claim 1, characterized in that, The terminal uses the adjustment value indicated by the first indication information and the first repeated transmission number of SRS and / or PUSCH indicated by the second indication information to obtain the repeated transmission number of SRS and / or PUSCH, including: The terminal selects a candidate value from a plurality of preset candidate values, excluding the first repeated transmission number of SRS indicated by the second indication information, based on the first indication information, and uses the selected candidate value as the determined repeated transmission number of SRS.

7. The method according to any one of claims 1-6, characterized in that, Also includes: If the number of repeated transmissions of the SRS is greater than 1, the terminal uses the transmission parameters of the first SRS to transmit subsequent SRSs until the number of SRSs transmitted through the same slot reaches the determined number of repeated transmissions of the SRS; or If the number of repeated transmissions of the PUSCH is greater than 1, the terminal uses the transmission parameters of the first PUSCH to send subsequent PUSCHs until the number of PUSCHs sent through the same radio frame reaches the determined number of repeated transmissions of the PUSCH. The transmission parameters include: transmission power, antenna port, beam direction, and frequency domain resources.

8. A method for indicating the number of repeated transmissions, characterized in that, include: The network-side device sends a downlink control signaling (DCI) to the terminal. The DCI includes first indication information, which is used to indicate the number of repeated transmissions of the sounding reference signal (SRS) and / or the physical uplink shared channel (PUSCH). The network-side device sends Radio Resource Control (RRC) signaling to the terminal. The RRC signaling includes second indication information, which is used to indicate the number of repeated transmissions of SRS and / or PUSCH. The first indication information is used to instruct the terminal to adjust the number of repeated transmissions of SRS and / or PUSCH indicated by the received second indication information according to the first indication information.

9. The method as described in claim 8, characterized in that, The first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes the modulation and coding strategy (MCS) index value.

10. The method as described in claim 9, characterized in that, The first indication information is the MCS index value; The first indication information is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value according to the first correspondence relationship, wherein the first correspondence relationship includes the correspondence relationship between different MCS index values ​​and different repeated transmission numbers of SRS and / or PUSCH.

11. The method as described in claim 8, characterized in that, The first indication information is carried in an extended field of the DCI; The extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or The extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field according to the third correspondence relationship; wherein, the third correspondence relationship includes the correspondence between different value indices and different repeated transmissions of SRS and / or PUSCH.

12. The method as described in claim 8, characterized in that, The first indication information is an indication value; The indication value is used by the terminal to determine the adjustment value corresponding to the indication value according to the third correspondence relationship; wherein, the third correspondence relationship is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

13. The method according to any one of claims 8-12, characterized in that, The first indication information is used to instruct the terminal to select a candidate value from a plurality of preset candidate values, excluding the number of repeated transmissions of SRS indicated by the second indication information, and to use the selected candidate value as the determined number of repeated transmissions of SRS.

14. A device for indicating the number of repeated transmissions, characterized in that, include: Transceiver unit: used to receive downlink control signaling (DCI), wherein the DCI includes first indication information, wherein the first indication information is used to indicate the number of repeated transmissions of the sounding reference signal (SRS) and / or the physical uplink shared channel (PUSCH); Processing unit: used to determine the number of repeated transmissions of SRS and / or PUSCH based on the first indication information; The transceiver unit is further configured to receive Radio Resource Control (RRC) signaling, wherein the RRC signaling includes second indication information, which is used to indicate the first number of repeated transmissions of SRS and / or PUSCH. The processing unit is specifically used to: obtain the number of repeated transmissions of the SRS and / or PUSCH by using the adjustment value indicated by the first indication information and the first number of repeated transmissions of the SRS and / or PUSCH indicated by the second indication information.

15. The apparatus as claimed in claim 14, characterized in that, The first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes the modulation and coding strategy (MCS) index value.

16. The apparatus as claimed in claim 15, characterized in that, When the first indication information is an MCS index value, the processing unit is specifically used for: Based on the first correspondence, the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value is determined; wherein, the first correspondence includes the correspondence between different MCS index values ​​and different number of repeated transmissions of SRS and / or PUSCH.

17. The apparatus as claimed in claim 14, characterized in that, When the first indication information is carried on an extended field in the DCI, the processing unit is specifically used for: The number of repeated transmissions of SRS and / or PUSCH is determined based on the value of the extended field; or Based on the second correspondence, the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field is determined; wherein, the second correspondence includes the correspondence between different value indices and different number of repeated transmissions of SRS and / or PUSCH.

18. The apparatus as claimed in claim 14, characterized in that, When the first indication information is an indication value, the processing unit is further configured to: Based on the third correspondence, the adjustment value corresponding to the indication value is determined; wherein, the third correspondence is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

19. The apparatus as claimed in claim 18, characterized in that, When the processing unit obtains the number of repeated transmissions of the SRS and / or PUSCH using the adjustment value indicated by the first indication information and the first number of repeated transmissions of the SRS and / or PUSCH, it is specifically used for: Based on the first indication information, select a candidate value from a plurality of preset candidate values, excluding the number of repeated transmissions of SRS indicated by the second indication information, and use the selected candidate value as the determined number of repeated transmissions of SRS.

20. The apparatus according to any one of claims 14-19, characterized in that, The transceiver unit is also used for: If the number of repeated transmissions of the SRS is greater than 1, then subsequent SRSs are transmitted using the transmission parameters of the first SRS, until the number of SRSs transmitted through the same slot reaches the determined number of repeated transmissions of the SRS; or If the number of repeated transmissions of the PUSCH is greater than 1, then the subsequent PUSCHs are transmitted using the transmission parameters of the first PUSCH, until the number of PUSCHs transmitted through the same radio frame reaches the determined number of repeated transmissions of the PUSCH. The transmission parameters include: transmission power, antenna port, beam direction, and frequency domain resources.

21. A device for indicating the number of repeated transmissions, characterized in that, include: Transmitting unit: used to send downlink control signaling (DCI) to the terminal, the DCI containing first indication information, the first indication information being used to indicate the number of repeated transmissions of the sounding reference signal (SRS) and / or the physical uplink shared channel (PUSCH); The terminal is sent a Radio Resource Control (RRC) signaling message, which includes second indication information. The second indication information is used to indicate the number of repeated transmissions of SRS and / or PUSCH. The first indication information is used to instruct the terminal to adjust the number of repeated transmissions of SRS and / or PUSCH indicated by the received second indication information according to the first indication information.

22. The apparatus as claimed in claim 21, characterized in that, The first indication information is carried on an existing field in the DCI, or the first indication information is carried on an extended field in the DCI, wherein the existing field in the DCI includes the modulation and coding strategy (MCS) index value.

23. The apparatus as claimed in claim 22, characterized in that, The first indication information is the MCS index value; The first indication information is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the MCS index value according to the first correspondence relationship, wherein the first correspondence relationship includes the correspondence relationship between different MCS index values ​​and different repeated transmission numbers of SRS and / or PUSCH.

24. The apparatus as claimed in claim 21, characterized in that, The first indication information is carried in an extended field of the DCI; The extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH based on the value of the extended field; or the extended field is used by the terminal to determine the number of repeated transmissions of SRS and / or PUSCH corresponding to the value index of the extended field based on a third correspondence; wherein the third correspondence includes the correspondence between different value indices and different repeated transmission numbers of SRS and / or PUSCH.

25. The apparatus as claimed in claim 21, characterized in that, The first indication information is an indication value; The indication value is used by the terminal to determine the adjustment value corresponding to the indication value according to the third correspondence relationship; wherein, the third correspondence relationship is the correspondence between different indication values ​​and different adjustment values ​​that adjust the number of repeated transmissions of SRS and / or PUSCH.

26. The apparatus as claimed in claim 21, characterized in that, The first indication information is used to instruct the terminal to select a candidate value from a plurality of preset candidate values, excluding the number of repeated transmissions of SRS indicated by the second indication information, and to use the selected candidate value as the determined number of repeated transmissions of SRS.

27. A communication device, characterized in that, Including processor and memory; The memory stores computer instructions; The processor is configured to execute computer instructions stored in the memory to enable the communication device to implement the method as described in any one of claims 1-7 or 8-13.

28. A computer-readable storage medium, characterized in that, The storage medium stores computer instructions that, when executed by a computer, cause the computer to perform the method as described in any one of claims 1-7 or 8-13.

29. A chip, characterized in that, The chip is coupled to a memory for reading and executing program instructions stored in the memory to implement the method as described in any one of claims 1-7 or 8-13.

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