A communication method, apparatus, chip and module device

Abstract

The application discloses a communication method, device, chip and module equipment, and relates to the field of communication. The method comprises the following steps: acquiring at least one timing advance or at least one timing advance group of a service cell; and sending a first uplink channel or a first sounding reference signal on the service cell according to a first timing advance or a first timing advance group, wherein the first timing advance is one of the at least one timing advance, and the first timing advance group is one of the at least one timing advance group. According to the embodiment of the application, in the case that a terminal device only supports one uplink transmission timing, one timing advance or timing advance group is selected from at least one timing advance or at least one timing advance group of a service cell to send a first uplink channel or a first sounding reference signal on the service cell.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a communication method, apparatus, chip, and module device. Background Technology

[0002] In communication systems, timing advance (TA) is used to ensure that uplink signals sent by terminal devices arrive at network devices synchronously. Currently, for the same serving cell, terminal devices can be configured or associated with a timing advance group (TAG) or a TA.

[0003] Version 18 (R18) of the communication protocol supports multiple transmit / receive points (M-TRP) based on multiple downlink control information (M-DCI), and for the same serving cell, terminal devices can support TA enhancement, meaning that a terminal device can be configured with multiple TAGs or multiple TAs. At this point, how the terminal device determines the uplink transmission timing (UL) is a problem that urgently needs to be solved. Summary of the Invention

[0004] This application provides a communication method, apparatus, chip, and module device for determining uplink transmission timing when a terminal device is configured with multiple TAGs or multiple TAs.

[0005] Firstly, a communication method is provided, comprising: acquiring at least one timing advance or at least one timing advance group of a serving cell; and transmitting a first uplink channel or a first probe reference signal on the serving cell according to the first timing advance or the first timing advance group, wherein the first timing advance is one of the at least one timing advances, and the first timing advance group is one of the at least one timing advance groups. It can be seen that, when the terminal device only supports one uplink transmission timing, this method enables the selection of a timing advance or timing advance group from the at least one timing advance or at least one timing advance group of the serving cell to transmit the first uplink channel or the first probe reference signal on the serving cell. In other words, when the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing from at least one timing advance or at least one timing advance group for uplink transmission.

[0006] Optionally, the serving cell is the primary cell in the primary cell group of the terminal device; or, the serving cell is the secondary cell in the secondary cell group of the terminal device; or, the serving cell is the primary cell in the secondary cell group of the terminal device; or, the serving cell is the primary cell of the terminal device.

[0007] Optionally, the first timing advance is the smallest or largest timing advance among at least one timing advance; or, the first timing advance is the first or second timing advance among at least one timing advance; or, the control resource set pool index associated with the first timing advance is a first value.

[0008] Optionally, the first timing advance group is the timing advance group with the smallest or largest identifier among at least one timing advance group; or, the first timing advance group is the first or second timing advance group among at least one timing advance group; or, the control resource set pool index associated with the first timing advance group is a first value.

[0009] Optionally, transmitting a first uplink channel or a first probe reference signal on the serving cell according to a first timing advance or a first timing advance group includes: if the uplink transmission time corresponding to the timing advance of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then transmitting the first uplink channel or the first probe reference signal on the serving cell according to the first timing advance; or, if the uplink transmission time corresponding to the timing advance group of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then transmitting the first uplink channel or the first probe reference signal on the serving cell according to the first timing advance group. It can be seen that when the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing for uplink transmission when the uplink transmission time corresponding to the timing advance of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, or when the uplink transmission time corresponding to the timing advance group of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device.

[0010] Optionally, transmitting a first uplink channel or a first probe reference signal on the serving cell according to a first timing advance or a first timing advance group includes: if the uplink transmission time corresponding to the first timing advance is different from the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then transmitting the first uplink channel or the first probe reference signal on the serving cell according to the first timing advance; or, if the uplink transmission time corresponding to the first timing advance group is different from the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then transmitting the first uplink channel or the first probe reference signal on the serving cell according to the first timing advance group. It can be seen that when the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing for uplink transmission when the uplink transmission time corresponding to the first timing advance is different from the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, or when the uplink transmission time corresponding to the first timing advance group is different from the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device.

[0011] Optionally, the serving cell is the primary cell in the primary cell group of the terminal device. Based on the first timing advance or the first timing advance group, transmitting the first uplink channel or the first probe reference signal on the serving cell includes: if the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then transmitting the first uplink channel or the first probe reference signal on the serving cell according to the timing advance of the primary cell group of the terminal device; or, if the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then transmitting the first uplink channel or the first probe reference signal on the serving cell according to the timing advance group of the primary cell group of the terminal device. It can be seen that when the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing for uplink transmission when the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, or when the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device.

[0012] Optionally, the method further includes: if the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then, according to the timing advance of the secondary cell group of the terminal device, sending the second uplink channel or the second probe reference signal of the secondary cell group; or, if the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then, according to the timing advance group of the secondary cell group of the terminal device, sending the second uplink channel or the second probe reference signal of the secondary cell group. It can be seen that when the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing for uplink transmission when the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, or when the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device.

[0013] Optionally, the method further includes: transmitting a second uplink channel according to a first timing advance or a first timing advance group, wherein the transmission times of the first uplink channel and the second uplink channel are the same; or, transmitting a second probe reference signal according to a first timing advance or a first timing advance group, wherein the transmission times of the first probe reference signal and the second probe reference signal are the same; wherein the first uplink channel and the second uplink channel are associated with different timing advances or timing advance groups, and the first probe reference signal and the second probe reference signal are associated with different timing advances or timing advance groups. It can be seen that when different uplink data are associated with different timing advances or timing advance groups, because the terminal device only supports one uplink transmission timing, it is necessary to use the same timing advance or timing advance group to transmit different uplink data simultaneously. By transmitting different uplink data simultaneously, data transmission efficiency can be improved.

[0014] Secondly, a communication method is provided, comprising: transmitting a first uplink channel from a plurality of uplink channels in a first time unit; and transmitting a second uplink channel from a plurality of uplink channels in a second time unit; wherein the first time unit and the second time unit are time units of equal duration and overlap. It can be seen that by making the overlapping time units of equal duration, the terminal device can transmit the first uplink channel and the second uplink channel in different time units respectively, solving the problem that uplink channels cannot be transmitted due to the shortening of later time units caused by TA commands. Simultaneously, transmitting different uplink channels in different time units can improve resource utilization and avoid data loss problems.

[0015] Optionally, the first and second time units overlap due to a timing advance command.

[0016] Optionally, multiple uplink channels can be received by multiple transmitting and receiving points, and the uplink channels can be physical uplink control channels or physical uplink shared channels.

[0017] Optionally, the uplink channel is the physical uplink control channel, and the spatial information of multiple uplink channels is different.

[0018] Optionally, the uplink channel is a physical uplink control channel; different uplink channels belong to different channel sets; or, different uplink channels are associated with different sets of power control parameters.

[0019] Optionally, the uplink channel is a physical uplink shared channel, and different uplink channels are associated with different sets of probe reference signal resources.

[0020] Thirdly, a communication apparatus is provided, comprising a unit for performing the method of any one of the first aspects, or comprising a unit for performing the method of any one of the second aspects.

[0021] Fourthly, a chip is provided, including a processor and a communication interface, wherein the processor is configured to cause the chip to perform the method of any one of the first aspects, or the processor is configured to cause the chip to perform the method of any one of the second aspects.

[0022] Fifthly, a module device is provided, comprising a communication module, a power module, a storage module, and a chip, wherein:

[0023] The power module is used to provide electrical energy to the module device;

[0024] Storage modules are used to store data and instructions;

[0025] The communication module is used for internal communication within the module device, and / or for communication between the module device and external devices;

[0026] The chip is used to perform the method of any one of the first aspects, or the chip is used to perform the method of any one of the second aspects.

[0027] A sixth aspect provides a communication device including a memory and a processor, the memory for storing a computer program, the computer program including program instructions, and the processor configured to invoke the program instructions to cause the communication device to perform the method of any one of the first aspects, or to cause the communication device to perform the method of any one of the second aspects.

[0028] In a seventh aspect, a computer-readable storage medium is provided, wherein computer-readable instructions are stored therein, which, when executed on a computer, cause the computer to perform the method of any one of the first aspects, or cause the computer to perform the method of any one of the second aspects.

[0029] Eighthly, a computer program product is provided, which stores computer-readable instructions that, when executed on a computer, cause the computer to perform the method of any one of the first aspects, or cause the computer to perform the method of any one of the second aspects.

[0030] A ninth aspect provides a communication system, including a terminal device for performing the method of any one of the first aspects or the method of any one of the second aspects. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a communication system provided in an embodiment of this application;

[0032] Figure 2 A flowchart illustrating a communication method provided in an embodiment of this application;

[0033] Figure 3 A flowchart illustrating yet another communication method provided in an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the structure of another communication device provided in the embodiments of this application;

[0036] Figure 6 This is a schematic diagram of the structure of another communication device provided in the embodiments of this application.

[0037] Figure 7 This is a schematic diagram of the structure of a module device provided in an embodiment of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0039] The terminology used in the following embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to include the plural expressions as well, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this application refers to and includes any or all possible combinations of one or more of the listed items.

[0040] It should be noted that the terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the term "comprising" and any variations thereof are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0041] To better understand the embodiments of this application, the system architecture involved in the embodiments of this application will be described first below:

[0042] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) system, 5th Generation (5G) system, or New Radio (NR) and future communication systems, etc.

[0043] Figure 1 This is a schematic diagram of a communication system provided in an embodiment of this application. The solution in this application can be applied to this communication system. The communication system may include at least one network device and at least one terminal device. Figure 1 Take a communication system that includes two network devices and one terminal device as an example.

[0044] I. Terminal Equipment

[0045] Terminal devices include devices that provide voice and / or data connectivity to users. For example, a terminal device is a device with wireless transceiver capabilities that can be deployed on land, including indoors or outdoors, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as on ships); and it can be deployed in the air (such as on airplanes, balloons, and satellites). The terminal can be a mobile phone, tablet computer, computer with wireless transceiver capabilities, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, vehicle-mounted terminal device, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, wearable terminal device, etc. The embodiments in this application do not limit the application scenarios. Terminal equipment may also be referred to as a terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, wireless communication equipment, UE agent, or UE device, etc. Terminal equipment can be fixed or mobile. In the embodiments of this application, the device used to implement the functions of the terminal equipment can be the terminal equipment itself, or it can be any device capable of supporting the terminal equipment in implementing those functions, such as a chip system or a combination of devices or components capable of implementing the functions of the terminal equipment. This device can be installed in the terminal equipment.

[0046] II. Network Equipment

[0047] Network equipment can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a wireless fidelity (WiFi) system. Network equipment can also be a module or unit that performs some of the functions of a base station; for example, it can be a central unit (CU) or a distributed unit (DU). Here, the CU performs the functions of the base station's radio resource control protocol and packet data convergence protocol (PDCP), and can also perform the functions of the service data adaptation protocol (SDAP); the DU performs the functions of the base station's radio link control layer and medium access control (MAC) layer, and can also perform some or all of the physical layer functions. For detailed descriptions of the various protocol layers mentioned above, please refer to the relevant technical specifications of the 3rd Generation Partnership Project (3GPP). Network equipment can be a macro base station, a micro base station, an indoor station, a relay node, or a donor node, etc. In the embodiments of this application, the device used to implement the network equipment function can be the network equipment itself, or a device capable of supporting the network equipment in implementing that function, such as a chip system or a combination of devices or components capable of implementing the network equipment function. This device can be installed in the network equipment. The embodiments of this application do not limit the specific technology or specific equipment form used in the network equipment.

[0048] To facilitate understanding of the solutions provided in the embodiments of this application, the terms or related technologies involved in this solution will be introduced first, and will not be repeated in the subsequent description.

[0049] In dual connectivity (DC) or carrier aggregation (CA) scenarios, a terminal device is configured with two cell groups: a master cell group (MCG) and a secondary cell group (SCG). The master cell group (MCG) refers to a cell group associated with the master eNB (MeNB), including the primary cell (PCell) and zero or at least one secondary cell (SCell). The secondary cell group (SCG) refers to a cell group associated with the secondary eNB (SeNB), including the primary and secondary cells (PSCell) and zero or at least one secondary cell.

[0050] The DC (Distributed Base Station) can include: Evolved Universal Terrestrial Radio Access NR Dual Connectivity (ENDC), NRE-UTRA Dual Connectivity (NEDC), NRDC, etc. ENDC refers to a terminal device accessing the NR network through a 4G access network device, with the 4G access network device acting as the primary base station and the 5G access network device acting as the secondary base station. NEDC refers to a 5G access network device acting as the primary base station and the 4G access network device acting as the secondary base station. NRDC refers to two 5G access network devices, one acting as the primary base station and the other as the secondary base station. For example, in... Figure 1 In the example shown, network device 1 can be the primary base station, and network device 2 can be the secondary base station.

[0051] It is understandable that a primary cell refers to a cell that establishes a radio resource control (RRC) connection with a terminal device. This primary cell is responsible for providing security-related parameters and is configured with physical uplink control channel (PUCCH) resources. A secondary cell refers to a secondary cell in a secondary cell group that is configured with PUCCH resources.

[0052] It should be understood that when a cell provides services to terminal devices, the cell can be called a serving cell. Examples include primary serving cell (i.e., the primary cell is the serving cell), primary-secondary serving cell (i.e., both primary and secondary cells are serving cells), and secondary serving cell (i.e., the secondary cell is the serving cell), etc.

[0053] In a DC scenario, there can be one or more cells serving a terminal device in the primary cell group and the secondary cell group.

[0054] II. The coresetPoolIndex indicates a coreset pool or coreset group, which includes one or more coresets. Different coreset pool indices can be associated with different coresets (TRPs) within the same cell, or with different coreset groups or different coreset pools. For example, a coreset pool index with a coreset pool index of 0 can be associated with the first coreset (TRP) of a cell, and a coreset pool index with a coreset pool index of 1 can be associated with the second coreset (TRP) of the same cell, and vice versa.

[0055] III. The power control parameter set includes power control parameters, which are used to determine the transmission power of the PUCCH, the physical uplink shared channel (PUSCH), or the sounding reference signal (SRS).

[0056] IV. A set of sounding reference signal (SRS) resources may include one or more SRS resources. An SRS resource may include at least one of the following: time-domain resources (including the period of periodic resources and the time slot level offset within the period, the time slot level offset of aperiodic resources relative to the time slot where the active signaling is located, or the orthogonal frequency division multiplexing (OFDM) symbol index within the time slot, etc.), frequency-domain resources (including bandwidth, frequency hopping configuration or frequency comb configuration), power control parameters, and spatial relationship parameters.

[0057] V. TA is generally used for uplink transmission by terminal devices. To ensure that uplink data sent by the terminal device arrives at the network device at the desired time, the transmission delay caused by distance is estimated, and the uplink data / channel is sent in advance by a corresponding amount of time. For carrier aggregation or dual-connectivity configurations, different carriers supported by the terminal device (e.g., including one primary carrier and the rest as secondary carriers) are allowed to have different TA values, introducing the concept of Timing Advance Group (TAG). A Timing Advance Group (TAG) can include one or more serving cells with the same TA. Generally, an MCG or SCG can be configured to associate up to four TAGs. In addition, different TAs can also be configured for the same carrier. It should be understood that in this application, TA can be referred to as uplink TA, and TAG can be referred to as uplink TAG group.

[0058] VI. The time unit can be a time slot, a micro-time slot, or a symbol, etc., and there are no restrictions here.

[0059] In Release 18 (R18), M-TRP supports M-DCI, and for the same serving cell, terminal devices can support TA enhancement, meaning a terminal device can be configured with multiple TAGs or multiple TAs. However, how the terminal device determines the uplink transmission timing when it supports only one uplink transmission timing is a problem that urgently needs to be solved. To solve this problem, please refer to [link to relevant documentation]. Figure 2 , Figure 2 This is a flowchart illustrating a communication method provided in an embodiment of this application. Figure 2 As shown, the communication method includes the following steps 201 to 202. Figure 2 The method shown can be executed by a terminal device. Alternatively, Figure 2 The method shown can be executed by a chip in a terminal device. Figure 2 This explanation uses a terminal device as the execution subject of the method. It should be understood that... Figure 2 The terminal device in the process supports an uplink transmission time, meaning that the terminal device can only perform uplink transmission through one TA or one TA corresponding to one TAG at a time.

[0060] 201. The terminal device obtains at least one TA or at least one TAG of the serving cell.

[0061] The number of serving cells in this application can be one or more, meaning the terminal device can be configured with at least one serving cell. In a DC or CA scenario, the at least one serving cell can include only cells from the primary cell group, only cells from the secondary cell group, or cells from both the primary and secondary cell groups; this application does not impose any restrictions. A serving cell can be configured with at least one TA or at least one TAG.

[0062] For example, if the serving cell includes serving cell 1 and serving cell 2, and the TA of serving cell 1 includes TA1 and TA2, and the TA of serving cell 2 includes TA3 and TA4, then the terminal device obtains at least one TA of the serving cell including TA1, TA2, TA3 and TA4.

[0063] In this context, obtaining the TAG of a serving cell can be understood as obtaining the TAG to which the serving cell belongs. For example, if serving cell 1 belongs to both TAG1 and TAG2, then at least one TAG of serving cell 1 obtained by the terminal device includes both TAG1 and TAG2.

[0064] For example, if the serving cell in this application includes serving cell 1 and serving cell 2, and the TAGs of serving cell 1 include TAG1 and TAG2, and the TAGs of serving cell 2 include TAG3 and TAG4, then at least one TAG of the serving cell obtained by the terminal device includes TAG1, TAG2, TAG3 and TAG4.

[0065] In one possible implementation, in a DC or CA scenario, the serving cell may include one or more of the following: the primary cell in the primary cell group of the terminal device (i.e., the serving cell is the primary serving cell mentioned above), the secondary cell in the secondary cell group of the terminal device (i.e., the serving cell is the secondary serving cell mentioned above), the primary and secondary cells in the secondary cell group of the terminal device (i.e., the serving cell is the primary and secondary serving cells mentioned above), and the secondary cell in the primary cell group of the terminal device.

[0066] In another possible implementation, the serving cell is the primary cell of the terminal device. It should be understood that when a terminal device is configured with one serving cell, that serving cell can be referred to as the primary cell of the terminal device; when a terminal device is configured with multiple serving cells, one of the multiple serving cells can be referred to as the primary cell of the terminal device, and the other serving cells in the multiple serving cells can be referred to as secondary cells of the terminal device.

[0067] In another possible implementation, the serving cell is a secondary cell of the terminal device. It should be understood that when a terminal device is configured with one serving cell, that serving cell can be referred to as the primary cell of the terminal device; when a terminal device is configured with multiple serving cells, one of the multiple serving cells can be referred to as the primary cell of the terminal device, and the other serving cells among the multiple serving cells can be referred to as secondary cells of the terminal device.

[0068] In another possible implementation, the serving cell is the primary cell and the secondary cell of the terminal device. It should be understood that when the terminal device is configured with one serving cell, that serving cell can be called the primary cell of the terminal device; when the terminal device is configured with multiple serving cells, one of the multiple serving cells can be called the primary cell of the terminal device, and the other serving cells in the multiple serving cells can be called the secondary cells of the terminal device.

[0069] As can be understood from the above description, the application scenarios of this application are not limited to DC or CA scenarios, but can also be applied to other scenarios.

[0070] Optionally, step 201 may include: the terminal device receiving at least one TA or at least one TAG of the serving cell from the network device, and correspondingly, the network device sending at least one TA or at least one TAG of the serving cell to the terminal device. The at least one TA or at least one TAG of the serving cell may, for example, be carried in message 2 (Msg2) of four-step random access, message B (MsgB) of two-step random access, or in a media access control (MAC) control element (CE), and is not limited thereto.

[0071] 202. The terminal device transmits a first uplink channel or a first probe reference signal on the serving cell according to the first TA or the first TAG, wherein the first TA is one of at least one TA and the first TAG is one of at least one TAG.

[0072] The terminal device transmits a first uplink channel or a first probe reference signal on the serving cell according to the first TAG, which can be understood as: the terminal device transmits a first uplink channel or a first probe reference signal on the serving cell according to the TA corresponding to the first TAG.

[0073] In the first scenario (denoted as Scenario 1), the first TA can be the smallest or largest TA among at least one TA. In this case, the terminal device can determine the smallest or largest TA (i.e., the first TA) among at least one TA, and transmit a first uplink channel or a first probe reference signal on the serving cell based on this smallest or largest TA. Optionally, when there are multiple serving cells, the first TA being the smallest or largest TA among at least one TA can be understood as: the first TA being the smallest or largest TA of the first cell among at least one TA. In one possible implementation, the first cell is the primary cell in the primary cell group of the terminal device, or a secondary cell in the secondary cell group of the terminal device, or a primary-secondary cell in the secondary cell group of the terminal device, or a secondary cell in the primary cell group of the terminal device. In another possible implementation, the first cell is the primary cell of the terminal device.

[0074] In the second scenario (denoted as Scenario 2), the first TA is either the first TA or the second TA among at least one TA. In this case, the terminal device can determine the first TA or the second TA (i.e., the first TA) among at least one TA, and transmit a first uplink channel or a first probe reference signal on the serving cell based on the first TA or the second TA. Specifically, the first TA is the TA that is first in the sequence from front to back or from back to front among at least one TA, and the second TA is the TA that is second in the sequence from front to back or from back to front among at least one TA. In one possible implementation, the first TA is the smallest TA among at least one TA, and the second TA is the largest TA among at least one TA; or, the first TA is the largest TA among at least one TA, and the second TA is the smallest TA among at least one TA. In another possible implementation, the control resource set pool index associated with the first TA and the control resource set pool index associated with the second TA are different, such as the control resource set pool index associated with the first TA being 0 and the control resource set pool index associated with the second TA being 1, or vice versa. Optionally, when there are multiple serving cells, the first TA is either the first or second TA among at least one TA. This can be understood as: the first TA is either the first or second TA of the first cell among at least one TA. In one possible implementation, the first TA is the smallest TA of the first cell, and the second TA is the largest TA of the first cell; or, the first TA is the largest TA of the first cell, and the second TA is a TA of the first cell. In another possible implementation, the control resource set pool index associated with the first TA and the control resource set pool index associated with the second TA are different, and the control resource set pool index associated with both the first and second TAs is the control resource set pool index of the first cell.

[0075] In the third case (denoted as Case 3), the control resource set pool index associated with the first TA is a first value. In this application, the first value can be 0 or 1. In this case, the terminal device can first determine the control resource set pool index of the first value, and then determine the TA associated with the control resource set pool index of the first value (i.e., the first TA) based on the association relationship between the TA and the control resource set pool index. Based on this TA, the terminal device transmits the first uplink channel or the first probe reference signal on the serving cell. As mentioned above, the control resource set pool index can be associated with the TRP. If the control resource set pool index of the first value is associated with the first TRP of the serving cell, then transmitting the first uplink channel or the first probe reference signal on the serving cell based on the first TA can be understood as: transmitting the first uplink channel or the first probe reference signal to the first TRP on the serving cell based on the first TA. Optionally, when there are multiple serving cells, the control resource set pool index associated with the first TA is the control resource set pool index of the first cell. Optionally, when there are multiple serving cells, the first TA is the TA associated with the control resource set pool index of the first cell. For example, if the serving cell includes serving cell 1 and serving cell 2, and the TA of serving cell 1 includes TA1 and TA2, and the TA of serving cell 2 includes TA3 and TA4, then at least one TA of the obtained serving cell includes TA1, TA2, TA3, and TA4. If the first TA is TA3, then the terminal device transmits a first uplink channel or a first probe reference signal on serving cell 1 and serving cell 2 according to TA3.

[0076] In the first scenario (denoted as Scenario 1), the first TAG is the TAG with the smallest or largest identifier among at least one TAG. In this case, the terminal device can determine the TAG with the smallest or largest identifier (i.e., the first TAG) among at least one TAG, and transmit the first uplink channel or the first probe reference signal on the serving cell according to the TA corresponding to the smallest or largest TAG. Optionally, when there are multiple serving cells, the first TAG being the TAG with the smallest or largest identifier among at least one TAG can be understood as: the first TAG being the TAG with the smallest or largest identifier for the first cell among at least one TAG.

[0077] In the second scenario (denoted as Scenario 2), the first TAG is either the first or second TAG among at least one TAGs. In this case, the terminal device can determine the first or second TAG (i.e., the first TAG) among at least one TAGs, and transmit a first uplink channel or a first sounding reference signal on the serving cell based on the TA corresponding to the first or second TAG. Specifically, the first TAG is the first TAG in the at least one TAG sequence (either from front to back or back to front), and the second TAG is the second TAG in the at least one TAG sequence (either from front to back or back to front). In one possible implementation, the first TAG is the TAG with the smallest identifier among at least one TAGs, and the second TAG is the TAG with the largest identifier among at least one TAGs; or, the first TAG is the TAG with the largest identifier among at least one TAGs, and the second TAG is the TAG with the smallest identifier among at least one TAGs. In another possible implementation, the control resource set pool index associated with the first TAG and the control resource set pool index associated with the second TAG are different. For example, the control resource set pool index associated with the first TAG is 0, and the control resource set pool index associated with the second TAG is 1, or vice versa. Optionally, when there are multiple serving cells, the first TAG is either the first or second TAG among at least one TAGs, which can be understood as: the first TAG is either the first or second TAG of the first cell among at least one TAGs. In one possible implementation, the first TAG is the TAG with the smallest identifier of the first cell, and the second TAG is the TAG with the largest identifier of the first cell; or, the first TAG is the TAG with the largest identifier of the first cell, and the second TAG is the TAG with the smallest identifier of the first cell. In another possible implementation, the control resource pool index associated with the first TAG and the control resource pool index associated with the second TAG are different, and the control resource pool index associated with the first TAG and the second TAG is the control resource pool index of the first cell.

[0078] In the third scenario (denoted as Scenario 3), the control resource pool index associated with the first TAG is the first numerical value. In this case, the terminal device can first determine the control resource pool index of the first numerical value, and then determine the TAG associated with the control resource pool index of the first numerical value (i.e., the first TAG) based on the association between the TAG and the control resource pool index. Based on the TA corresponding to this TAG, the terminal device transmits the first uplink channel or the first probe reference signal on the serving cell. As mentioned above, the control resource pool index can be associated with the TRP. If the control resource pool index of the first numerical value is associated with the first TRP of the serving cell, then transmitting the first uplink channel or the first probe reference signal on the serving cell based on the TA corresponding to the first TAG can be understood as: transmitting the first uplink channel or the first probe reference signal to the first TRP on the serving cell based on the TA corresponding to the first TAG. Optionally, when there are multiple serving cells, the control resource pool index associated with the first TAG is the control resource pool index of the first cell. Optionally, when there are multiple serving cells, the first TAG is the TAG associated with the control resource pool index of the first cell. For example, if the serving cell includes serving cell 1 and serving cell 2, and serving cell 1 has TAGs including TAG1 and TAG2, and serving cell 2 has TAGs including TAG3 and TAG4, then at least one TAG of the serving cell is obtained, including TAG1, TAG2, TAG3, and TAG4. If the first TAG is TAG3, then the terminal device transmits a first uplink channel or a first sounding reference signal on serving cell 1 and serving cell 2 according to the TAG3 corresponding to TAG3.

[0079] The first uplink channel can be either PUCCH or PUSCH.

[0080] Optionally, step 202 can be understood in any of the following ways.

[0081] Method 1: When the uplink transmission time corresponding to the TA in the primary cell group of the terminal device is different from the uplink transmission time corresponding to the TA in the secondary cell group of the terminal device, the terminal device transmits a first uplink channel or a first sounding reference signal on the serving cell according to the first TA; or, when the uplink transmission time corresponding to the TAG in the primary cell group of the terminal device is different from the uplink transmission time corresponding to the TAG in the secondary cell group of the terminal device, the terminal device transmits a first uplink channel or a first sounding reference signal on the serving cell according to the first TAG. In this application, uplink transmission time can be understood as uplink transmission time, and the uplink transmission time corresponding to a TA can be understood as the uplink transmission time determined according to that TA. In this application, uplink transmission time can also be understood as uplink transmission timing, and the uplink transmission time corresponding to a TA can be understood as the uplink transmission timing determined according to that TA.

[0082] In this application, the uplink transmission time corresponding to the TA (Transmission Time Accompanied) of the primary cell group of the terminal device can be understood as the uplink transmission time corresponding to the TAs of some or all cells in the primary cell group of the terminal device. For example, the uplink transmission time corresponding to the TA of the primary cell group of the terminal device can be understood as the uplink transmission time corresponding to one TA (e.g., any one or a preset one) in the primary cell group of the terminal device. Similarly, the uplink transmission time corresponding to the TAG (Trusted Aspects) of the primary cell group of the terminal device can be understood as the uplink transmission time corresponding to the TAGs of some or all cells in the primary cell group of the terminal device. For example, the uplink transmission time corresponding to the TAG of the primary cell group of the terminal device can be understood as the uplink transmission time corresponding to one TAG (e.g., any one or a preset one) in the primary cell group of the terminal device. The uplink transmission time corresponding to the TA of the secondary cell group of the terminal device can be understood as the uplink transmission time corresponding to the TAs of some or all cells in the secondary cell group of the terminal device. The uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device can be understood as the uplink transmission time corresponding to the TAG of some or all cells in the secondary cell group of the terminal device.

[0083] Method 2: If the uplink transmission time corresponding to the first TA is different from the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, the terminal device shall transmit the first uplink channel or the first probe reference signal on the serving cell according to the first TA; or, if the uplink transmission time corresponding to the first TAG is different from the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, the terminal device shall transmit the first uplink channel or the first probe reference signal on the serving cell according to the first TAG.

[0084] In Mode 1 and Mode 2, "transmitting a first uplink channel or a first sounding reference signal on the serving cell according to the first TA" can be understood as: using the first TA, transmitting a first uplink channel or a first sounding reference signal on the serving cell. "transmitting a first uplink channel or a first sounding reference signal on the serving cell according to the first TAG" can be understood as: using the TA corresponding to the first TAG, transmitting a first uplink channel or a first sounding reference signal on the serving cell.

[0085] Method 3: If the uplink transmission time corresponding to the first TA is the same as the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, the terminal device transmits the first uplink channel or the first probe reference signal on the serving cell according to the TA of the primary cell group of the terminal device; or, if the uplink transmission time corresponding to the first TAG is the same as the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, the terminal device transmits the first uplink channel or the first probe reference signal on the serving cell according to the TAG of the primary cell group of the terminal device.

[0086] In Method 3, transmitting a first uplink channel or a first sounding reference signal on the serving cell based on the TA of the primary cell group of the terminal device can be understood as: the terminal device transmits a first uplink channel or a first sounding reference signal on the serving cell based on (for example, using) a TA of the primary cell group of the terminal device (for example, any TA or a preset TA). Similarly, transmitting a first uplink channel or a first sounding reference signal on the serving cell based on the TAG of the primary cell group of the terminal device can be understood as: the terminal device transmits a first uplink channel or a first sounding reference signal on the serving cell based on the timing advance corresponding to a TAG of the primary cell group of the terminal device (for example, any TAG or a preset TAG).

[0087] In methods 1-3, the specific use of the first TA in case 1, case 2 or case 3, or the specific use of the first TAG in case 1, case 2 or case 3, can be determined by the terminal device itself, configured by the network device, or pre-configured by the protocol or other means. This application does not impose any restrictions.

[0088] It can be seen that, in any of the above methods 1-3, if the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing for uplink transmission.

[0089] In one possible implementation, for any one of methods 1-3, the method further includes: if the uplink transmission time corresponding to the first TA is the same as the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, the terminal device sends a second uplink channel or a second probe reference signal of the secondary cell group according to the TA of the secondary cell group of the terminal device; or, if the uplink transmission time corresponding to the first TAG is the same as the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, the terminal device sends a second uplink channel or a second probe reference signal of the secondary cell group according to the TAG of the secondary cell group of the terminal device.

[0090] The second uplink channel can be either PUCCH or PUSCH.

[0091] Optionally, the terminal device transmits the second uplink channel or the second sounding reference signal of the secondary cell group according to the timing advance group of the secondary cell group of the terminal device. This can be understood as: the terminal device transmits the second uplink channel or the second sounding reference signal of the secondary cell group according to the timing advance corresponding to a timing advance group (e.g., any TAG or a preset TAG) of the secondary cell group of the terminal device.

[0092] It can be seen that when the terminal device only supports one uplink transmission timing, the terminal device can determine the uplink transmission timing to perform uplink transmission when the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the terminal device's secondary cell group, or when the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the terminal device's secondary cell group.

[0093] In another possible implementation, for any one of methods 1-3, the method further includes: the terminal device transmitting a second uplink channel according to a first TA or a first TAG, wherein the transmission time of the first uplink channel and the second uplink channel is the same; or, the terminal device transmitting a second probe reference signal according to a first TA or a first TAG, wherein the transmission time of the first probe reference signal and the second probe reference signal is the same; wherein the first uplink channel and the second uplink channel are associated with different TAs or TAGs, and the first probe reference signal and the second probe reference signal are associated with different TAs or TAGs.

[0094] Optionally, the terminal device transmits a second uplink channel based on the first TAG, which can be understood as: the terminal device transmits a second uplink channel based on (for example, using) the TA corresponding to the first TAG. Similarly, the terminal device transmits a second probe reference signal based on the first TAG, which can be understood as: the terminal device transmits a second probe reference signal based on (for example, using) the TA corresponding to the first TAG.

[0095] As can be seen, when different uplink data are associated with different timing advances or timing advance groups, because the terminal device only supports one uplink transmission timing, it is necessary to use the same timing advance or timing advance group to transmit different uplink data simultaneously. By transmitting different uplink data simultaneously, data transmission efficiency can be improved.

[0096] Currently, there may be an issue where two adjacent time slots overlap due to TA commands. In this case, the duration of the later time slot can be shortened to prevent uplink transmission in that later time slot. However, omitting uplink transmission in the later time slot may result in reduced resource utilization and data loss. To resolve this issue, please refer to [link to relevant documentation]. Figure 3 , Figure 3 This is a flowchart illustrating another communication method provided in an embodiment of this application. Figure 3 As shown, the communication method includes the following steps 301 and 302. Figure 3 The method shown can be executed by a terminal device. Alternatively, Figure 3 The method shown can be executed by a chip in a terminal device. Figure 3 This explanation uses a terminal device as the execution subject of the method. It should be understood that... Figure 3 The terminal device supports multiple uplink transmission timings, meaning it can perform uplink transmissions simultaneously using multiple TAs or TAs corresponding to multiple TAGs. Meanwhile, Figure 3 The terminal device also supports multiple PUCCHs, or the terminal device also supports multiple PUSCHs to be sent simultaneously, or the terminal device also supports at least one PUCCH and at least one PUSCH to be sent simultaneously.

[0097] 301. The terminal device transmits the first uplink channel among multiple uplink channels in the first time unit.

[0098] Accordingly, the network device receives the first uplink channel.

[0099] 302. The terminal device transmits the second uplink channel among multiple uplink channels in the second time unit. The first and second time units are time units of the same duration and overlap.

[0100] Correspondingly, the network device receives the second uplink channel.

[0101] Among them, multiple uplink channels can be multiple PUCCHs, or multiple uplink channels can be multiple PUSCHs, or multiple uplink channels can be at least one PUCCH and at least one PUSCH, without any limitation.

[0102] In one possible implementation, the first uplink channel may be PUCCH or PUSCH.

[0103] In one possible implementation, the second uplink channel can be a PUCCH or a PUSCH. It should be understood that the first and second uplink channels can be of the same or different types. The first and second uplink channels can also carry the same or different data.

[0104] Optionally, multiple uplink channels may be received by multiple TRPs, such as multiple PUCCHs being received by multiple TRPs, or multiple PUSCHs being received by multiple TRPs, or at least one PUCCH and at least one PUSCH being received by multiple TRPs.

[0105] Optionally, multiple uplink channels can be multiple PUCCHs. In one case, the spatial information of the multiple uplink channels is different, i.e., the spatial information of the multiple PUCCHs is different. In another case, the different uplink channels belong to different channel sets, and the channel set may include at least one PUCCH; or, the different uplink channels are associated with different sets of power control parameters.

[0106] Optionally, multiple uplink channels can be configured as multiple PUSCHs, with different uplink channels associated with different sets of probe reference signal resources.

[0107] Optionally, multiple uplink channels include at least one PUCCH and at least one PUSCH. In this case, different PUCCHs may have different spatial information, or belong to different channel sets, or be associated with different power control parameter sets. Different PUSCHs may be associated with different sets of sounding reference signal resources. The first uplink channel and the second uplink channel can be channels of the same type, for example, both being PUCCHs. In this case, the first uplink channel and the second uplink channel may have different spatial information, belong to different channel sets, or be associated with different sets of power control parameters. Alternatively, both may be PUSCHs. In this case, the first uplink channel and the second uplink channel may be associated with different sets of sounding reference signal resources. The first uplink channel and the second uplink channel can also be channels of different types, for example, one may be a PUCCH and the other a PUSCH.

[0108] The overlap of the first and second time units can be understood as partial or complete overlap. In one possible implementation, the overlap of the first and second time units is caused by a TA command. It should be understood that before the terminal device receives the TA command, the first and second time units are adjacent. After the terminal device receives the TA command, the first and second time units will overlap due to the TA command.

[0109] Optionally, step 301 may include: the terminal device transmitting a first uplink channel in a first time unit according to the TA corresponding to the first TA or the first TAG. Here, the first TA can be one of at least one TA of the serving cell of the terminal device, and the first TAG can be one of at least one TAG of the serving cell of the terminal device. For a description of the serving cell, the first TA, and the first TAG, please refer to the above text; it will not be repeated here.

[0110] Optionally, step 302 may include: the terminal device transmitting a second uplink channel in a second time unit according to the TA corresponding to the second TA or the second TAG.

[0111] It needs to be explained that, in Figure 3 In this context, the first TA and the second TA can be the same or different, and the first TAG and the second TAG can be the same or different.

[0112] There is no necessary sequential execution relationship between steps 301 and 302. For example, step 301 can be executed before step 302, or step 301 can be executed after step 302, or steps 301 and 302 can be executed simultaneously.

[0113] As can be seen, by making the overlapping time units the same length, the terminal device can transmit the first uplink channel and the second uplink channel in different time units, thus solving the problem of being unable to transmit the uplink channel due to the shortening of the later time unit length caused by the TA command. At the same time, transmitting different uplink channels in different time units improves resource utilization and avoids data loss.

[0114] See Figure 4 , Figure 4 This is a schematic diagram of a communication device provided in an embodiment of this application. The communication device can be a terminal device or a device with terminal device functions (e.g., a chip). Specifically, as shown... Figure 4 As shown, the communication device 400 may include:

[0115] The acquisition unit 401 is used to acquire at least one TA or at least one TAG of the serving cell; the transmission unit 402 is used to transmit a first uplink channel or a first probe reference signal on the serving cell according to the first TA or the first TAG, wherein the first TA is one of the at least one TA and the first TAG is one of the at least one TAG.

[0116] Optionally, the serving cell is the primary cell in the primary cell group of the terminal device; or, the serving cell is the secondary cell in the secondary cell group of the terminal device; or, the serving cell is the primary cell in the secondary cell group of the terminal device; or, the serving cell is the primary cell of the terminal device.

[0117] Optionally, the first TA is the smallest or largest TA among at least one TA; or, the first TA is the first or second TA among at least one TA; or, the control resource set pool index associated with the first TA is a first value.

[0118] Optionally, the first TAG is the TAG that identifies the smallest or largest among at least one TAG; or, the first TAG is the first or second TAG among at least one TAG; or, the control resource set pool index associated with the first TAG is a first value.

[0119] Optionally, the transmitting unit 402 is specifically configured to: transmit a first uplink channel or a first probe reference signal on the serving cell according to the first TA when the uplink transmission time corresponding to the TA of the primary cell group of the terminal device and the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device are different; or, transmit a first uplink channel or a first probe reference signal on the serving cell according to the first TA when the uplink transmission time corresponding to the TAG of the primary cell group of the terminal device and the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device are different.

[0120] Optionally, the transmitting unit 402 is specifically configured to: transmit a first uplink channel or a first sounding reference signal on the serving cell according to the first TA if the uplink transmission time corresponding to the first TA and the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device are different; or, transmit a first uplink channel or a first sounding reference signal on the serving cell according to the first TA if the uplink transmission time corresponding to the first TAG and the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device are different.

[0121] Optionally, the serving cell is the primary cell in the primary cell group of the terminal device. The transmitting unit 402 is specifically used to: transmit a first uplink channel or a first probe reference signal on the serving cell according to the TA of the primary cell group of the terminal device when the uplink transmission time corresponding to the first TA is the same as the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device; or, transmit a first uplink channel or a first probe reference signal on the serving cell according to the TAG of the primary cell group of the terminal device when the uplink transmission time corresponding to the first TAG is the same as the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device.

[0122] Optionally, the transmitting unit 402 is further configured to: if the uplink transmission time corresponding to the first TA is the same as the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, then transmit the second uplink channel or the second probe reference signal of the secondary cell group according to the TA of the secondary cell group of the terminal device; or, if the uplink transmission time corresponding to the first TAG is the same as the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, then transmit the second uplink channel or the second probe reference signal of the secondary cell group according to the TAG of the secondary cell group of the terminal device.

[0123] Optionally, the transmitting unit 402 is further configured to: transmit a second uplink channel according to a first TA or a first TAG, wherein the transmission time of the first uplink channel and the second uplink channel is the same; or, transmit a second probe reference signal according to a first TA or a first TAG, wherein the transmission time of the first probe reference signal and the second probe reference signal is the same; wherein the first uplink channel and the second uplink channel are associated with different TAs or TAGs, and the first probe reference signal and the second probe reference signal are associated with different TAs or TAGs.

[0124] See Figure 5 , Figure 5 This is a schematic diagram of another communication device provided in an embodiment of this application. This communication device can be a terminal device or a device with terminal device functions (e.g., a chip). Specifically, as shown... Figure 5 As shown, the communication device 500 may include:

[0125] The transmitting unit 501 is configured to: transmit a first uplink channel among multiple uplink channels in a first time unit; and transmit a second uplink channel among multiple uplink channels in a second time unit; wherein the first time unit and the second time unit are time units of the same duration and overlap.

[0126] Optionally, the first and second time units overlap due to the TA command.

[0127] Optionally, multiple uplink channels are received by multiple TRPs, and the uplink channels are PUCCH or PUSCH.

[0128] Optionally, the uplink channel is PUCCH, and the spatial information of multiple uplink channels is different.

[0129] Optionally, the uplink channel is PUCCH; different uplink channels belong to different channel sets; or, different uplink channels are associated with different sets of power control parameters.

[0130] Optionally, the uplink channel is PUSCH, and different uplink channels are associated with different sets of sounding reference signal resources.

[0131] This application also provides a chip that can perform the relevant steps of the electronic device in the foregoing method embodiments. The chip includes a processor and a communication interface. In one possible implementation, the processor is configured to cause the chip to perform the following operations: acquire at least one TA or at least one TAG of the serving cell; and transmit a first uplink channel or a first probe reference signal on the serving cell according to the first TA or the first TAG, wherein the first TA is one of the at least one TA, and the first TAG is one of the at least one TAG.

[0132] Optionally, the serving cell is the primary cell in the primary cell group of the terminal device; or, the serving cell is the secondary cell in the secondary cell group of the terminal device; or, the serving cell is the primary cell in the secondary cell group of the terminal device; or, the serving cell is the primary cell of the terminal device.

[0133] Optionally, the first TA is the smallest or largest TA among at least one TA; or, the first TA is the first or second TA among at least one TA; or, the control resource set pool index associated with the first TA is a first value.

[0134] Optionally, the first TAG is the TAG that identifies the smallest or largest among at least one TAG; or, the first TAG is the first or second TAG among at least one TAG; or, the control resource set pool index associated with the first TAG is a first value.

[0135] Optionally, the processor is configured to cause the chip to perform the following operations: if the uplink transmission time corresponding to the TA of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, then transmit a first uplink channel or a first sounding reference signal on the serving cell according to the first TA; or, if the uplink transmission time corresponding to the TAG of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, then transmit a first uplink channel or a first sounding reference signal on the serving cell according to the first TAG.

[0136] Optionally, the processor is configured to cause the chip to perform the following operations: if the uplink transmission time corresponding to the first TA is different from the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, then transmit a first uplink channel or a first sounding reference signal on the serving cell according to the first TA; or, if the uplink transmission time corresponding to the first TAG is different from the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, then transmit a first uplink channel or a first sounding reference signal on the serving cell according to the first TAG.

[0137] Optionally, the serving cell is the primary cell in the primary cell group of the terminal device, and the processor is configured to cause the chip to perform the following operations: if the uplink transmission time corresponding to the first TA is the same as the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, then the first uplink channel or the first probe reference signal is transmitted on the serving cell according to the TA of the primary cell group of the terminal device; or, if the uplink transmission time corresponding to the first TAG is the same as the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, then the first uplink channel or the first probe reference signal is transmitted on the serving cell according to the TAG of the primary cell group of the terminal device.

[0138] Optionally, the processor is further configured to cause the chip to perform the following operations: if the uplink transmission time corresponding to the first TA is the same as the uplink transmission time corresponding to the TA of the secondary cell group of the terminal device, then the second uplink channel or the second probe reference signal of the secondary cell group is transmitted according to the TA of the secondary cell group of the terminal device; or, if the uplink transmission time corresponding to the first TAG is the same as the uplink transmission time corresponding to the TAG of the secondary cell group of the terminal device, then the second uplink channel or the second probe reference signal of the secondary cell group is transmitted according to the TAG of the secondary cell group of the terminal device.

[0139] Optionally, the processor is further configured to cause the chip to perform the following operations: transmitting a second uplink channel according to a first TA or a first TAG, wherein the transmission time of the first uplink channel and the second uplink channel is the same; or, transmitting a second probe reference signal according to a first TA or a first TAG, wherein the transmission time of the first probe reference signal and the second probe reference signal is the same; wherein the first uplink channel and the second uplink channel are associated with different TAs or TAGs, and the first probe reference signal and the second probe reference signal are associated with different TAs or TAGs.

[0140] In another possible implementation, the processor is configured to cause the chip to perform the following operations: transmit a first uplink channel of a plurality of uplink channels on a first time unit; transmit a second uplink channel of a plurality of uplink channels on a second time unit; wherein the first time unit and the second time unit are time units of the same duration and overlap.

[0141] Optionally, the first and second time units overlap due to the TA command.

[0142] Optionally, multiple uplink channels are received by multiple TRPs, and the uplink channels are PUCCH or PUSCH.

[0143] Optionally, the uplink channel is PUCCH, and the spatial information of multiple uplink channels is different.

[0144] Optionally, the uplink channel is PUCCH; different uplink channels belong to different channel sets; or, different uplink channels are associated with different sets of power control parameters.

[0145] Optionally, the uplink channel is PUSCH, and different uplink channels are associated with different sets of sounding reference signal resources.

[0146] In one possible implementation, the chip includes at least one processor, at least one first memory, and at least one second memory; wherein the at least one first memory and the at least one processor are interconnected by a circuit, and the first memory stores instructions; the at least one second memory and the at least one processor are interconnected by a circuit, and the second memory stores data that needs to be stored in the aforementioned method embodiment.

[0147] For each device or product applied to or integrated into a chip, each of its modules can be implemented using hardware methods such as circuits, or at least some modules can be implemented using software programs that run on a processor integrated inside the chip, while the remaining (if any) modules can be implemented using hardware methods such as circuits.

[0148] See Figure 6 , Figure 6 This is a schematic diagram of another communication device provided in an embodiment of this application. The communication device can be a terminal device or a network device. The communication device 600 may include a memory 601 and a processor 602. Optionally, it may also include a communication interface 603. The memory 601, processor 602, and communication interface 603 are connected via one or more communication buses. The communication interface 603 is controlled by the processor 602 for sending and receiving information.

[0149] Memory 601 may include read-only memory and random access memory, and provides instructions and data to processor 602. A portion of memory 601 may also include non-volatile random access memory.

[0150] Communication interface 603 is used to receive or send data.

[0151] Processor 602 can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor; optionally, processor 602 can also be any conventional processor. Wherein:

[0152] Memory 601 is used to store program instructions.

[0153] Processor 602 is used to call program instructions stored in memory 601.

[0154] The processor 602 calls the program instructions stored in the memory 601, causing the communication device 600 to execute the method executed by the terminal device or network device in the above method embodiment.

[0155] like Figure 7 As shown, Figure 7 This is a schematic diagram of the structure of a module device provided in an embodiment of this application. The module device 700 can perform the relevant steps of the terminal device or network device in the aforementioned method embodiments. The module device 700 includes: a communication module 701, a power module 702, a storage module 703, and a chip 704.

[0156] The power module 702 is used to provide power to the module device; the storage module 703 is used to store data and instructions; the communication module 701 is used for internal communication within the module device or for communication between the module device and external devices; and the chip 704 is used to execute the methods performed by the terminal device or network device in the above method embodiments.

[0157] It should be noted that, Figure 6 and Figure 7 For details not mentioned in the corresponding embodiments and the specific implementation methods of each step, please refer to [link to relevant documentation]. Figure 2 and Figure 3 The embodiments shown and the foregoing content will not be repeated here.

[0158] This application also provides a computer-readable storage medium storing instructions that, when executed on a processor, enable the implementation of the method flow described in the above method embodiments.

[0159] This application also provides a computer program product, which, when run on a processor, enables the implementation of the method flow described in the above method embodiments.

[0160] Regarding the modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or a combination of both. For example, for various devices and products applied to or integrated into a chip, all of their modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on the chip's integrated processor, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into a chip module, all of their modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same part (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units... It can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, the modules / units they contain can all be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0161] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some operations can be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0162] The descriptions of the various embodiments provided in this application can be referenced mutually. Each embodiment has its own emphasis, and parts not described in detail in a certain embodiment can be referred to the relevant descriptions of other embodiments. For the sake of convenience and brevity, for example, the functions and operations of the various devices and equipment provided in the embodiments of this application can be referred to the relevant descriptions of the method embodiments of this application. The method embodiments and the device embodiments can also be referenced, combined or cited from each other.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A communication method, characterized in that, The method includes: Obtain at least one time advance or at least one time advance group of the serving cell; According to the first timing advance or the first timing advance group, a first uplink channel or a first detection reference signal is transmitted on the serving cell, wherein the first timing advance is one of the at least one timing advances, and the first timing advance group is one of the at least one timing advance groups. The step of transmitting a first uplink channel or a first sounding reference signal on the serving cell according to a first timing advance or a first timing advance group includes: If the uplink transmission time corresponding to the timing advance of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, or if the uplink transmission time corresponding to the first timing advance is different from the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then the first uplink channel or the first sounding reference signal is transmitted on the serving cell according to the first timing advance; or, If the uplink transmission time corresponding to the timing advance group of the primary cell group of the terminal device is different from the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, or if the uplink transmission time corresponding to the first timing advance group is different from the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then the first uplink channel or the first probe reference signal is transmitted on the serving cell according to the first timing advance group.

2. The method according to claim 1, characterized in that, The serving cell is the primary cell in the primary cell group of the terminal device; or... The serving cell is a secondary cell in the secondary cell group of the terminal device; or... The serving cell is the primary cell in the secondary cell group of the terminal device; or... The serving cell is the primary cell of the terminal device.

3. The method according to claim 1 or 2, characterized in that, The first timing advance is the smallest or largest timing advance among the at least one timing advance; or, The first timing advance is either the first or the second timing advance among the at least one timing advance; or, The index of the control resource set pool associated with the first timed advance is the first value.

4. The method according to claim 1 or 2, characterized in that, The first timing advance group is the timing advance group with the smallest or largest identifier among the at least one timing advance groups; or, The first timing advance group is either the first timing advance group or the second timing advance group among the at least one timing advance groups; or, The index of the control resource set pool associated with the first timing advance group is the first value.

5. The method according to claim 1 or 2, characterized in that, The serving cell is the primary cell in the primary cell group of the terminal device. The step of transmitting a first uplink channel or a first sounding reference signal on the serving cell according to a first timing advance or a first timing advance group includes: If the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then according to the timing advance of the primary cell group of the terminal device, the first uplink channel or the first sounding reference signal is transmitted on the serving cell; or, If the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then the first uplink channel or the first probe reference signal is transmitted on the serving cell according to the timing advance group of the primary cell group of the terminal device.

6. The method according to claim 5, characterized in that, The method further includes: If the uplink transmission time corresponding to the first timing advance is the same as the uplink transmission time corresponding to the timing advance of the secondary cell group of the terminal device, then according to the timing advance of the secondary cell group of the terminal device, the second uplink channel or the second sounding reference signal of the secondary cell group is transmitted; or, If the uplink transmission time corresponding to the first timing advance group is the same as the uplink transmission time corresponding to the timing advance group of the secondary cell group of the terminal device, then the second uplink channel or the second probe reference signal of the secondary cell group is sent according to the timing advance group of the secondary cell group of the terminal device.

7. The method according to claim 1, 2, or 6, characterized in that, The method further includes: According to the first timing advance or the first timing advance group, a second uplink channel is transmitted, wherein the transmission times of the first uplink channel and the second uplink channel are the same; or, According to the first timing advance or the first timing advance group, a second detection reference signal is sent, and the first detection reference signal and the second detection reference signal are sent at the same time; The first uplink channel and the second uplink channel are associated with different timing advances or timing advance groups, and the first detection reference signal and the second detection reference signal are associated with different timing advances or timing advance groups.

8. A communication device, characterized in that, Includes a unit for performing the method as described in any one of claims 1 to 7.

9. A chip, characterized in that, It includes a processor and a communication interface, the processor being configured to cause the chip to perform the method as described in any one of claims 1 to 7.

10. A module device, characterized in that, The module device includes a communication module, a power module, a storage module, and a chip, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication within the module device, and / or for communication between the module device and external devices; The chip is used to perform the method as described in any one of claims 1 to 7.

11. A communication device, characterized in that, The device includes a memory and a processor, the memory being used to store a computer program, the computer program including program instructions, and the processor being configured to invoke the program instructions to cause the communication device to perform the method as described in any one of claims 1 to 7.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-readable instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 7.

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