Communication method, and apparatus

Abstract

The present application relates to a communication method, and an apparatus. When a receiving time of an SPS downlink data channel is within an inactive time of cellDTX, according to a signaling in which second information instructing a cellDTX operation is located, a terminal device can determine whether to send feedback information of the SPS downlink data channel to a network device. Thus, in scenarios in which cellDTX technology is used, network devices and terminal devices are kept consistent with each other in understanding feedback information of SPS downlink data channels, thereby preventing the network devices from retransmitting data when misunderstanding the feedback information, and further ensuring data transmission efficiency. In addition, using cellDTX technology can also reduce the energy consumption of the terminal devices and / or the network devices, thereby helping to save the energy of the terminal devices and / or the network devices.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application with application number 202311006437.1 filed with the State Intellectual Property Office of China on August 10, 2023, and priority to the Chinese patent application with the invention name “A Communication Method and Device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0003] In communications technology, cell discontinuous transmission (DTX) and cell discontinuous reception (DRX) have been proposed to conserve energy. Ensuring data transmission efficiency in cell DTX and / or DRX scenarios is a pressing technical challenge.

[0004] Summary of the Invention

[0005] The present application provides a communication method and device that can ensure data transmission efficiency.

[0006] In a first aspect, a communication method is provided. The method can be executed by a terminal device, or by a module (e.g., a processor, chip, or chip system) applied to the terminal device, or by a logical node, logic module, or software that implements all or part of the terminal device's functions. In the communication method, first information can be received from a network device, the first information including a cell discontinuous transmission (cellDTX) parameter, which is used to determine the cellDTX inactivity period. Thus, based on signaling containing second information, a determination can be made as to whether to send feedback information about a semi-persistent scheduling (SPS) downlink data channel to the network device, the second information indicating a cellDTX operation, the reception time of the SPS downlink data channel being within the cellDTX inactivity period.

[0007] As can be seen, in the above embodiment, when the reception time of the SPS downlink data channel falls within the cellDTX inactive time, the terminal device can determine whether to send feedback information about the SPS downlink data channel to the network device based on the signaling containing the second information indicating the cellDTX operation. In this way, in scenarios where the cellDTX technology is applied, the network device and the terminal device can maintain consistent understanding of the feedback information of the SPS downlink data channel, thereby avoiding repeated data transmission when the network device misunderstands the feedback information, thereby ensuring data transmission efficiency. Furthermore, by applying the cellDTX technology, the energy consumption of the terminal device and / or network device can also be reduced, which is beneficial to energy conservation of the terminal device and / or network device.

[0008] In combination with the first aspect, optionally, based on the signaling containing the second information, it is determined whether to send feedback information of the SPS downlink data channel to the network device, including: the signaling containing the second information is radio resource control (RRC) signaling or media access control layer control element (MAC CE), and the feedback information of the SPS downlink data channel is not sent to the network device.

[0009] It can be seen that in the above embodiment, when the signaling containing the second information is RRC signaling or MAC CE, the terminal device does not provide feedback, which can save signaling overhead.

[0010] In combination with the first aspect, optionally, the signaling in which the second information is located is downlink control information (DCI), and the feedback information of the SPS downlink data channel is included in the first codebook. According to the signaling in which the second information is located, determining whether to send the feedback information of the SPS downlink data channel to the network device includes: the first codebook does not include feedback information of other downlink data channels, and the first codebook is not sent to the network device, and the first codebook is a semi-static codebook; or, the first codebook includes feedback information of other downlink data channels, and the first codebook is sent to the network device, the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filled with information; or, the first codebook is sent to the network device, the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filled with information.

[0011] It can be seen that in the above embodiment, when the first codebook is a semi-static codebook and does not include feedback information of other downlink data channels, the terminal device does not provide feedback, which can save signaling overhead. When the first codebook is a semi-static codebook and includes feedback information of other downlink data channels, the terminal device can provide feedback of a semi-static codebook including feedback information of the SPS downlink data channel and feedback information of other downlink data channels. Alternatively, when the first codebook is a dynamic codebook, the terminal device always provides feedback information of the SPS downlink data channel. This ensures that the network device and the terminal device have a consistent understanding of the codebook size, thereby avoiding repeated data transmission when the network device misunderstands the feedback information, thereby ensuring data transmission efficiency.

[0012] In combination with the first aspect, optionally, the filling information is a negative acknowledgement (NACK).

[0013] In combination with the first aspect, optionally, the terminal device is configured with a cell discontinuous reception (cell DRX) operation, and the sending time corresponding to the feedback information of the SPS downlink data channel is within the activation time of the cell DRX.

[0014] In a second aspect, a communication method is provided. The method can be executed by a terminal device, or by a module (e.g., a processor, chip, or chip system) applied to the terminal device, or by a logical node, logical module, or software that can implement all or part of the terminal device's functions. The terminal device is configured with cellDRX operation. In this communication method, the terminal device can receive a semi-persistently scheduled SPS downlink data channel from a network device; thereby, feedback information about the SPS downlink data channel can be sent to the network device, or feedback information about the SPS downlink data channel can be not sent to the network device; wherein the transmission time corresponding to the feedback information of the SPS downlink data channel is within the cellDRX inactive time.

[0015] It can be seen that in the above embodiment, when the sending time corresponding to the feedback information of the SPS downlink data channel is within the inactive time of cellDRX, the terminal device sends the feedback information of the SPS downlink data channel to the network device or does not send the feedback information of the SPS downlink data channel to the network device. In this way, in the scenario where the cellDRX technology is applied, the network device and the terminal device can maintain a consistent understanding of the feedback information of the SPS downlink data channel, thereby avoiding repeated data transmission when the network device misunderstands the feedback information, thereby ensuring data transmission efficiency. In addition, by applying the cellDRX technology, the energy consumption of the terminal device and / or network device can also be reduced, which is beneficial to energy saving of the terminal device and / or network device.

[0016] In combination with the second aspect, optionally, feedback information of the SPS downlink data channel is sent to the network device, including: the feedback information of the SPS downlink data channel is multiplexed in the uplink channel, and the uplink channel is sent to the network device; wherein, the uplink channel is a dynamically scheduled uplink data channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the uplink channel; or, the uplink channel is an uplink control channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel is in the same time slot as the sending time of the uplink control channel, and the uplink control channel also includes feedback information of the dynamically scheduled downlink data channel.

[0017] It can be seen that in the above embodiment, the feedback information of the SPS downlink data channel is multiplexed in the uplink channel, so that the terminal device can send the uplink channel to the network device, thus saving signaling overhead.

[0018] In combination with the second aspect, optionally, feedback information of the SPS downlink data channel is not sent to the network device, including: when there is no other feedback information within the sending time corresponding to the feedback information of the SPS downlink data channel, feedback information of the SPS downlink data channel is not sent to the network device.

[0019] It can be seen that in the above embodiment, when there is no other feedback information within the sending time corresponding to the feedback information of the SPS downlink data channel, the terminal device does not provide feedback. This can save signaling overhead, reduce the energy consumption of the terminal device and / or network device, and is beneficial to energy saving of the terminal device and / or network device.

[0020] In combination with the second aspect, optionally, the terminal device is configured with a cellDTX operation, and the reception time of the SPS downlink data channel is within the activation time of the cellDTX.

[0021] In combination with the second aspect, optionally, the method also includes: receiving SPS configuration information from a network device, the SPS configuration information being used to indicate a first feedback mode or a second feedback mode of the SPS downlink data channel; the first feedback mode being to report feedback information of the SPS downlink data channel after the terminal device receives the SPS downlink data channel; the second feedback mode including, after the terminal device receives the SPS downlink data channel, determining not to report feedback information of the SPS downlink data channel according to a first condition, or determining to report feedback information of the SPS downlink data channel according to a second condition; the first condition being that no other feedback information exists within the sending time corresponding to the feedback information of the SPS downlink data channel; the second condition being that the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the dynamically scheduled uplink data channel that is allowed to be sent; or, the second condition being that the sending time corresponding to the feedback information of the SPS downlink data channel is in the same time slot as the sending time of the uplink control channel that is allowed to be sent.

[0022] It can be seen that in the above embodiment, the network device can indicate the feedback mode of the SPS downlink data channel to the terminal device, so that the terminal device can provide feedback according to the feedback mode indicated by the network device, thereby avoiding errors in the terminal device.

[0023] In combination with the second aspect, optionally, the method further includes: sending capability information to the network device, where the capability information is used to indicate that the terminal device supports the first feedback mode and / or the second feedback mode.

[0024] In a third aspect, a communication method is provided, which can be executed by a terminal device, or by a module (such as a processor, chip, or chip system) applied to the terminal device, or by a logical node, logical module, or software that can implement all or part of the terminal device functions. The terminal device is configured with cellDTX operation. In this communication method, the terminal device can receive first information from a network device, the first information being used to indicate downlink semi-persistent scheduling (SPS) resources; and can also receive second information from the network device, the second information being used to activate downlink SPS resources, the second information being sent within the activation time of cellDTX; thereby not receiving the first SPS downlink data channel from the network device; or not receiving all SPS downlink data channels from the network device, all SPS downlink data channels including the first SPS downlink data channel; wherein the reception time of the first SPS downlink data channel is within the inactivation time of cellDTX, and the first SPS downlink data channel is the SPS downlink data channel activated by the second information with the earliest reception time after receiving the second information.

[0025] It can be seen that in the above embodiment, when the sending time of the second information (the second information is used to activate the downlink SPS resource) is within the activation time of cellDTX, and the receiving time of the first SPS downlink data channel is within the inactivation time of cellDTX, the terminal device may not receive the first SPS downlink data channel from the network device, not receive all SPS downlink data channels from the network device (all SPS downlink data channels include the first SPS downlink data channel), or receive the first SPS downlink data channel from the network device. In this way, in the scenario where the cellDTX technology is applied, the network device and the terminal device can maintain a consistent understanding of the transmission of the SPS downlink data channel, thereby avoiding errors in the terminal device and ensuring data transmission efficiency. In addition, by applying the cellDRX technology, the energy consumption of the terminal device and / or the network device can also be reduced, which is beneficial to energy saving of the terminal device and / or the network device.

[0026] In combination with the third aspect, optionally, the method further includes: sending feedback information of the first SPS downlink data channel to the network device.

[0027] In conjunction with the third aspect, optionally, the terminal device is further configured with cellDRX operation, and the sending time corresponding to the feedback information of the first SPS downlink data channel is within the activation time of the cellDRX.

[0028] In combination with the third aspect, optionally, the sending time corresponding to the feedback information of the first SPS downlink data channel is determined according to the receiving time and offset of the first SPS downlink data channel; or, the sending time corresponding to the feedback information of the first SPS downlink data channel is determined according to the receiving time and offset of the second information.

[0029] In combination with the third aspect, optionally, the method further includes: not sending feedback information of the first SPS downlink data channel to the network device.

[0030] It can be seen that in the above embodiment, the terminal device does not provide feedback, which can save signaling overhead.

[0031] In a fourth aspect, a communication method is provided. The method can be executed by a network device, or by a module (e.g., a processor, chip, or chip system) applied to the network device, or by a logical node, logic module, or software that can implement all or part of the network device's functions. In this communication method, first information can be sent to a terminal device, the first information including a cellDTX parameter, which is used to determine the inactive time of the cellDTX; thereby, based on the signaling containing second information, it can be determined whether to receive feedback information of an SPS downlink data channel from the terminal device, the second information being used to indicate cellDTX operation, and the reception time of the SPS downlink data channel being within the inactive time of the cellDTX.

[0032] In combination with the fourth aspect, optionally, based on the signaling containing the second information, it is determined whether to receive feedback information of the SPS downlink data channel from the terminal device, including: the signaling containing the second information is radio resource control RRC signaling or media access control layer control unit MAC CE, and the feedback information of the SPS downlink data channel from the terminal device is not received.

[0033] In combination with the fourth aspect, optionally, the signaling where the second information is located is downlink control information DCI, and the feedback information of the SPS downlink data channel is included in the first codebook. According to the signaling where the second information is located, it is determined whether to receive the feedback information of the SPS downlink data channel from the terminal device, including: the first codebook does not include feedback information of other downlink data channels, the first codebook from the terminal device is not received, and the first codebook is a semi-static codebook; or, the first codebook includes feedback information of other downlink data channels, the first codebook from the terminal device is received, the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filled with information; or, the first codebook from the terminal device is received, the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filled with information.

[0034] In a fifth aspect, a communication device is provided, comprising a unit or module for implementing the method described in any one of the first, second, or third aspects. The communication device may be a terminal device or a network device, or a module of the terminal device or network device (e.g., a processor, chip, or chip system), or a logical node, logical module, or software that can implement all or part of the functions of the terminal device or network device.

[0035] In a sixth aspect, a communication device is provided, comprising at least one processor and a memory; wherein the memory is used to store computer programs or instructions; and at least one processor is used to execute the computer programs or instructions in the memory, so that the method described in any one of the first aspect, the second aspect or the third aspect is executed.

[0036] In a seventh aspect, a communication system is provided, the communication system including a terminal device for executing the method as described in any one of the first aspect, the second aspect or the third aspect, and the communication system may also include a network device for communicating with the terminal device.

[0037] In an eighth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and when the computer instructions are executed, the computer executes the method as described in any one of the first aspect, the second aspect or the third aspect.

[0038] In a ninth aspect, a computer program product is provided, the computer program product comprising: a computer program code, and when the computer program code is executed by a computer, the computer executes the method as described in any one of the first aspect, the second aspect or the third aspect.

[0039] In the tenth aspect, a chip is provided, which includes at least one processor and an interface, the processor is used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes the method as described in any one of the first aspect, the second aspect or the third aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following is a brief introduction to the drawings required for describing the embodiments.

[0041] FIG1 is a basic architecture of a communication system provided in an embodiment of the present application;

[0042] FIG2 is a flow chart of a communication method provided in an embodiment of the present application;

[0043] FIG3 is a flow chart of another communication method provided in an embodiment of the present application;

[0044] FIG4 is a flow chart of another communication method provided in an embodiment of the present application;

[0045] FIG5 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0046] FIG6 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. In the embodiments of the present application, the terms "system" and "network" can be used interchangeably. Unless otherwise specified, " / " indicates that the objects associated before and after are in an "or" relationship. For example, A / B can represent A or B. "And / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more than two. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and / or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be one or more. In addition, to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish between network elements and identical or similar items with substantially the same functions. Those skilled in the art will understand that terms such as "first" and "second" do not limit the quantity or execution order, and terms such as "first" and "second" do not necessarily limit differences.

[0048] References to "one embodiment" or "some embodiments" in the embodiments of the present application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0049] The following specific implementation methods further describe in detail the objectives, technical solutions and beneficial effects of the present application. It should be understood that the following are only specific implementation methods of the present application and are not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the present application should be included in the scope of protection of the present application.

[0050] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0051] It should be understood that the technical solutions of the embodiments of the present application can be applied to long term evolution (LTE) architecture, fifth generation mobile communication technology (5G), wireless local area networks (WLAN) systems, vehicle to everything (V2X) communication systems, LTE-vehicle (LTE-V), vehicle to vehicle (V2V), vehicle networking, machine type communications (MTC), etc. The technical solutions of the embodiments of the present application can also be applied to other future communication systems, such as 6G communication systems, etc. In future communication systems, the functions may remain the same, but the names may change.

[0052] The following describes the infrastructure of the communication system provided by the embodiment of the present application. The communication system provided by the present application may include one or more network devices and one or more terminal devices.

[0053] The following is an exemplary explanation using the system architecture shown in Figure 1. As shown in Figure 1, the communication system includes a network device 10 and one or more terminal devices (such as the terminal device 20 in Figure 1) that communicate with the network device 10.

[0054] It should be noted that the number of network devices and terminal devices in Figure 1 is only for illustration and should not be considered as a specific limitation of the present application. The terminal devices and network devices involved in the system architecture are described in detail below.

[0055] 1. Terminal Equipment

[0056] A terminal device is an entity on the user side that is used to receive signals, or send signals, or both receive and send signals. The terminal device is used to provide one or more of voice services and data connectivity services to the user. The terminal device may be a device that includes wireless transceiver functions and can cooperate with network equipment to provide communication services to the user. Specifically, the terminal device may refer to user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, terminal, wireless communication device, user agent, user device or road side unit (RSU). The terminal device may also be a drone, an Internet of Things (IoT) device, a station (ST) in a wireless local area network (WLAN), a cellular phone, a smart phone, a cordless phone, a wireless data card, a tablet computer, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a laptop computer, a machine type communication (MTC) terminal, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device (also referred to as a wearable smart device), a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in remote medical care, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in a smart grid, a transportation security system, or a similar device. The terminal device may also be a terminal in a 5G system or a terminal in a next-generation communication system, which is not limited in the embodiments of the present application.

[0057] The embodiments of this application do not limit the device form factor of the terminal device. The device used to implement the functions of the terminal device can be the terminal device; it can also be a device that supports the terminal device to implement the functions, such as a chip system. The device can be installed in the terminal device or used in conjunction with the terminal device. In the embodiments of this application, the chip system can be composed of a chip or include a chip and other discrete components.

[0058] 2. Network Equipment

[0059] A network device is an entity on the network side that is used to send signals, receive signals, or both send and receive signals. A network device can be a device deployed in a radio access network (RAN) to provide wireless communication functions for terminal devices.

[0060] In one possible scenario, a network device may be a device with base station functionality, such as an evolved NodeB (eNodeB), a transmitting and receiving point (TRP), a transmitting point (TP), a next-generation NodeB (gNB), a next-generation base station in a 6G mobile communication system, an integrated access and backhaul (IAB) node, or non-terrestrial network equipment in an NTN, i.e., equipment that can be deployed on a high-altitude platform or satellite. A network device may be a transmission reception point (TRP), a base station, or various forms of control nodes, such as a network controller or a wireless controller. Specifically, network devices can include various forms of macro base stations, micro base stations (also known as small cells) in heterogeneous network (HetNet) scenarios, relay stations, access points (APs), radio network controllers (RNCs), node Bs (NBs), base station controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node Bs, or home node Bs, HNBs), baseband units (BBUs) and remote radio units (RRUs) in distributed base station scenarios, transmission points (TRPs), transmitting points (TPs), mobile switching centers, and the like. They can also be antenna panels for base stations. A control node can connect to multiple base stations and configure resources for multiple terminals covered by these base stations. In systems using different wireless access technologies, the names of devices with base station functionality may vary. For example, it can be a gNB in ​​5G, or a network-side device in a network after 5G, or a network device in a future evolved public land mobile (communication) network (public land mobile network, PLMN) network, or a device that performs base station functions in device-to-device (D2D) communication, machine-to-machine (M2M) communication, and vehicle network communication, etc. This application does not limit the specific name of the network device.The network equipment can also be an open access network (open RAN, O-RAN or ORAN), a baseband pool (BBU pool) and RRU under a cloud radio access network (CRAN), etc.

[0061] All or part of the functions of the network device in this application may also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform). The network device in this application may also be a logical node, logical module, or software that can implement all or part of the network device functions.

[0062] In another possible scenario, multiple network devices collaborate to assist the terminal device in achieving wireless access, and different network devices respectively implement part of the functions of the base station. For example, the network device may include a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be set separately, or may be included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH). It is understandable that the network device may be a CU node, a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into a network device in the access network RAN, or the CU may be divided into a network device in the core network CN, without limitation here.

[0063] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0064] In the embodiments of the present application, the form of the network device is not limited. The device used to implement the function of the network device can be a network device; it can also be a device that can support the network device to implement the function, such as a chip system. The device can be installed in the network device or used in conjunction with the network device.

[0065] In order to facilitate understanding of the contents of this solution, some of the terms involved in the embodiments of this application are explained below to facilitate understanding by those skilled in the art. This part is only for ease of understanding and cannot be regarded as a specific limitation of this application.

[0066] 1. Physical downlink shared channel (PDSCH)

[0067] In this application, PDSCH can be divided into dynamically scheduled PDSCH and SPS PDSCH, specifically:

[0068] Dynamically scheduled PDSCHs can be understood as one PDSCH scheduled by one PDCCH. The time-frequency location of each PDSCH may be different, and the specific time-frequency location is indicated by the PDCCH corresponding to each PDSCH. The transmission time corresponding to the feedback information of each PDSCH may also be different, and the specific transmission time is also indicated by the PDCCH corresponding to each PDSCH. This type of PDSCH can also be called dynamically scheduled PDSCH or PDSCH with scheduling information.

[0069] SPS PDSCH can be understood as a mode used in a single configuration cycle. For example, a network device can activate the transmission of multiple SPS PDSCHs by sending a PDCCH. This PDCCH can be used to indicate the time domain location of the first SPS PDSCH, the time slot in which the first SPS PDSCH is located, the time-frequency location of the SPS PDSCH feedback information, etc. In addition, the network device will also send configuration information to configure the SPS PDSCH cycle through high-layer signaling. Combined with this information, the terminal device can determine the location to receive the SPS PDSCH and the time-frequency location of the SPS PDSCH feedback information.

[0070] It should be noted that the feedback information mentioned in this application may refer to hybrid automatic repeat request acknowledgment (HARQ-ACK) feedback information. For example, acknowledgment (ACK) or NACK. When the terminal device successfully decodes the data on the PDSCH, the feedback information may include ACK; when the terminal device fails to decode the data on the PDSCH, the feedback information may include NACK. In addition, the high-level signaling mentioned in this application may be RRC signaling, etc.

[0071] Optionally, the PDCCH used to activate transmission of multiple SPS PDSCHs may have at least one feature:

[0072] (1) The cyclic redundancy check (CRC) of the DCI (the DCI is carried in the PDCCH) is masked by the configured scheduling-radio network temporary identifier (CS-RNTI), which is configured by higher-layer signaling.

[0073] (2) The new date indication (NDI) field in the DCI is set to 0.

[0074] (3) When the format of the DCI is DCI format 0_0, DCI format 0_1, or DCI format 1_0, the HARQ process number in the DCI is set to all 0s, and the redundant version information in the DCI is set to 00. When the format of the DCI is DCI format 1_1, the HARQ process number in the DCI is set to all 0s, and for the enabled transport block, the redundant version information in the DCI is set to .

[0075] Optionally, feedback information of multiple PDSCHs can be combined and fed back together, such as through a HARQ-ACK codebook (CB). Generally, the HARQ-ACK codebook can be divided into a Type 1 HARQ-ACK (Type-1 HARQ-ACK) codebook and a Type 2 HARQ-ACK (Type-2 HARQ-ACK) codebook, specifically:

[0076] Type-1 HARQ-ACK codebook, also known as a semi-static codebook. The number of bits that make up the codebook is determined according to high-level signaling. Since the update of high-level signaling is semi-static, it is called a semi-static codebook. The Type-1 HARQ-ACK codebook can be carried in the physical uplink control channel (PUCCH). The number of feedback information included in the Type-1 HARQ-ACK codebook is related to at least one of the following parameters: the number of elements in the K1 set, the number of candidate opportunities corresponding to the start and length indicator value (SLIV) set, and the number of downlink carriers corresponding to the uplink carrier where the PUCCH is located. Among them, the K1 set includes candidate values ​​for the K1 value. K1 is the time slot offset value between PDSCH and PUCCH, and the PUCCH carries the feedback information of PDSCH. Optionally, the Type-1 HARQ-ACK codebook may include feedback information of dynamically scheduled PDSCH, and may also include feedback information of SPS PDSCH.

[0077] The Type-2 HARQ-ACK codebook can also be called a dynamic codebook. The number of bits and bit positions that make up the codebook are determined according to the order of the DCI that schedules the PDSCH. Optionally, the Type-2 HARQ-ACK codebook may include feedback information for the dynamically scheduled PDSCH. When the transmission time corresponding to the feedback information and the transmission time corresponding to the feedback information of the SPS PDSCH are in the same time slot, the feedback information of the SPS PDSCH can be cascaded after the Type-2 HARQ-ACK codebook and carried on the same PUCCH for transmission.

[0078] 2. cell DTX

[0079] To save power, the network device can turn on the transmitter during the cell DTX activation time and perform downlink transmission with the terminal device. During the cell DTX inactive time, the transmitter can be turned off and no downlink transmission is performed with the terminal device.

[0080] Generally, the network device may not send at least one of the periodic channel state information reference signal (CSI-RS), the SPS CSI-RS, the periodic CSI-RS or the rank indicator (RI) included in the reporting quantity (reportQuantity) of the channel state information (CSI) configuration associated with the SPS CSI-RS, and the SPS PDSCH during the inactive time of the cell DTX.

[0081] Optionally, the activation time of the cell DTX may be included in the cell DTX period. In a possible implementation manner, the cell DTX period may further include the inactivation time of the cell DTX.

[0082] Optionally, the activation time of cell DTX in different cells covered by the network device may be the same or different, and the deactivation time of cell DTX in different cells covered by the network device may be the same or different.

[0083] It should be noted that in this application, the active time may also be referred to as the wake-up period, wake-up time, active period or duration, and the inactive time may also be referred to as the sleep period or sleep time.

[0084] 3. Cell DRX

[0085] To save power, the network device can turn on the receiver during the cell DRX activation time and perform uplink transmission with the terminal device. During the cell DRX inactivity time, the network device can turn off the receiver and not perform uplink transmission with the terminal device.

[0086] Generally, the network device may not receive at least one of the periodic CSI-RS, the CSI-RS of the SPS, the periodic sounding reference signal (SRS), the SRS of the SPS, the physical uplink shared channel (PUSCH) of the configured grant, the scheduling request (SR), etc. during the activation time of the cell DRX.

[0087] Optionally, the activation time of the cell DTX may be included in the cell DTX period. In a possible implementation manner, the cell DTX period may further include the inactivation time of the cell DTX.

[0088] Optionally, the activation time of cell DRX in different cells covered by the network device may be the same or different, and the deactivation time of cell DRX in different cells covered by the network device may be the same or different.

[0089] Optionally, the network device may configure cell DTX and cell DRX independently or together. Optionally, the activation time of cell DTX and the activation time of cell DRX may be the same or different.

[0090] Generally speaking, a base station can send SPSPDSCH to a terminal device. When a network device uses cell DTX technology, the reception time of SPSPDSCH may fall within the cell DTX inactive time. In this case, how to ensure data transmission efficiency becomes a technical problem that needs to be solved at the current stage. Based on this, the present application provides the communication method shown in Figure 2 to solve this problem.

[0091] The following describes the embodiments of the present application in detail. Specifically, the terminal device mentioned below may be the terminal device involved in Figure 1, and the network device mentioned below may be the network device involved in Figure 1. It should be noted that the message names between network elements or the names of the parameters in the messages in the following embodiments are merely examples. Other names may also be used in specific implementations, and the embodiments of the present application do not specifically limit this.

[0092] As shown in FIG2 , a communication method is provided in an embodiment of the present application, which includes but is not limited to the following steps:

[0093] 201. A network device sends first information to a terminal device. The first information includes a cellDTX parameter. The cellDTX parameter is used to determine an inactive time of the cellDTX.

[0094] Correspondingly, the terminal device receives the first information from the network device.

[0095] The first information may be carried in RRC signaling or MAC CE.

[0096] Optionally, the cellDTX parameter may include at least one of the following: a cell DTX cycle, a starting position of an activation time of the cell DTX, a length of the activation time, etc. Optionally, the cellDTX parameter may also be used to determine an activation time of the cellDTX.

[0097] 202. The terminal device determines whether to send feedback information of the SPS downlink data channel to the network device according to the signaling containing the second information, where the second information is used to indicate a cellDTX operation, and a reception time of the SPS downlink data channel is within an inactive time of the cellDTX.

[0098] Among them, the downlink data channel mentioned in this application may refer to PDSCH.

[0099] Step 202 may be implemented in any of the following ways, specifically:

[0100] 1. The signaling containing the second information is RRC signaling or MAC CE, and the terminal device does not send feedback information for the SPS downlink data channel to the network device. When the signaling containing the second information is RRC signaling, the first information and the second information can be located in the same signaling or different signaling. When the first information and the second information are located in the same signaling, the terminal device's receipt of the cell DTX parameter sent by the network device indicates that cell DTX is turned on or enabled. In addition, the second information is used to indicate cell DTX operation, which can also be understood as: the second information is used to indicate that the terminal device is configured for cell DTX operation. It should be noted that "the terminal device is configured for cell DTX operation" mentioned in this application can refer to turning on cell DTX, enabling cell DTX, activating cell DTX parameters, or applying cell DTX parameters. For example, during the activation time of cell DTX, the terminal device turns on the RF receiver to receive data; during the inactivation time of cell DTX, the terminal device turns off the RF receiver to save power. In the case where the signaling in which the second information is located is a MAC CE, the second information is used to indicate a cellDTX operation, which can also be understood as: the second information is used to indicate activation of the cellDTX operation, enabling of cellDTX, turning on cellDTX, or applying cellDTX parameters.

[0101] 2. The signaling containing the second information is DCI, and the feedback information of the SPS downlink data channel is included in the first codebook. Exemplarily, the first codebook does not include feedback information of other downlink data channels, and the terminal device does not send the first codebook to the network device, and the first codebook is a semi-static codebook. Another example is that the first codebook includes feedback information of other downlink data channels, and the terminal device sends the first codebook to the network device, the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filled with information. Another example is that the terminal device sends the first codebook to the network device, the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filled with information. The filling information here can be NACK.

[0102] As can be seen from the above-mentioned method 1 or method 2, the network device can instruct the cellDTX operation through RRC signaling, MAC CE or DCI. Conversely, the network device can exit the cellDTX operation through RRC signaling, MAC CE or DCI. This application does not limit the specific method of exiting the cellDTX operation.

[0103] The feedback information of the SPS downlink data channel may be 1 bit. Optionally, the sending time corresponding to the feedback information of the SPS downlink data channel may be within the time when the network device receives the uplink transmission, specifically:

[0104] 1. The terminal device is configured for cellDRX operation, and the time when the network device receives uplink transmissions may be the cellDRX activation time. That is, when the terminal device is configured for cellDRX operation, the time corresponding to the transmission of feedback information on the SPS downlink data channel falls within the cellDRX activation time. It should be noted that, as used herein, "the terminal device is configured for cellDRX operation" may refer to turning on cellDRX, enabling cellDRX, activating cellDRX parameters, or applying cellDRX parameters. For example, during the cellDRX activation time, the terminal device turns on the RF transmitter to transmit data; during the cellDRX inactive time, the terminal device turns off the RF transmitter to save power. Exemplarily, the configuration of cellDRX operation on the terminal device may be achieved by: the network device may configure the cellDRX parameters for the terminal device and instruct the terminal device to operate the cellDRX. The cellDRX parameters may include at least one of the following: a cellDRX cycle, a starting position of the cellDRX activation time, the length of the activation time, etc. Optionally, the cellDRX parameters may be used to determine the cellDRX activation time and / or the cellDRX inactive time. Optionally, the cellDRX parameter and the cellDRX operation indication may be carried in the same signaling or in different signaling. For example, RRC signaling includes the cellDRX parameter, and MAC CE or DCI is used to indicate the cellDRX operation. This can also be understood as MAC CE or DCI being used to activate the cellDRX operation. For another example, RRC signaling includes the cellDRX parameter, and the RRC signaling is also used to indicate the cellDRX operation.

[0105] 2. The terminal device is not configured for cellDRX operation. That is, if the terminal device is not configured for cellDRX operation, the SPS downlink data channel feedback information can be sent within the time it takes for the network device to receive uplink transmissions. The fact that the terminal device is not configured for cellDRX operation can be understood as: the network device configures cellDRX parameters for the terminal device and does not instruct cellDRX operation; or the network device does not configure cellDRX parameters for the terminal device.

[0106] As can be seen from the above-mentioned method 1 or method 2, the network device can instruct the cellDRX operation through RRC signaling, MAC CE or DCI. Conversely, the network device can exit the cellDRX operation through RRC signaling, MAC CE or DCI. This application does not limit the specific method of exiting the cellDRX operation.

[0107] As can be seen, in the above embodiment, when the reception time of the SPS downlink data channel falls within the cellDTX inactive time, the terminal device can determine whether to send feedback information about the SPS downlink data channel to the network device based on the signaling containing the second information indicating the cellDTX operation. In this way, in scenarios where the cellDTX technology is applied, the network device and the terminal device can maintain consistent understanding of the feedback information of the SPS downlink data channel, thereby avoiding repeated data transmission when the network device misunderstands the feedback information, thereby ensuring data transmission efficiency. Furthermore, by applying the cellDTX technology, the energy consumption of the terminal device and / or network device can also be reduced, which is beneficial to energy conservation of the terminal device and / or network device.

[0108] Generally speaking, a base station can send SPSPDSCH to a terminal device. When network equipment uses cell DRX technology, the transmission time corresponding to the SPSPDSCH feedback information may fall within the cell DRX inactive period. In this case, how to ensure data transmission efficiency becomes a technical issue that needs to be addressed at this stage. Based on this, this application provides the communication method shown in Figure 3 to address this problem.

[0109] As shown in FIG3 , another communication method is provided in an embodiment of the present application. In the communication method shown in FIG3 , the terminal device is configured with cellDRX operation. The communication method includes but is not limited to the following steps:

[0110] 301. The network device sends an SPS downlink data channel to the terminal device.

[0111] Correspondingly, the terminal device receives the SPS downlink data channel from the network device.

[0112] Optionally, the reception time of the SPS downlink data channel can be within the time when the network device sends the downlink transmission. Specifically:

[0113] 1. If the terminal device is configured for cellDTX operation, the time at which the network device sends downlink transmissions may be the cellDTX activation time. That is, when the terminal device is configured for cellDTX operation, the reception time of the SPS downlink data channel may be within the cellDTX activation time. Exemplarily, configuring the terminal device for cellDTX operation may be achieved by the network device configuring cellDTX parameters for the terminal device and instructing the terminal device to operate in the cellDTX mode. The cellDTX parameters may include at least one of the following: a cellDTX cycle, a starting position for the cellDTX activation time, and a duration for the activation time. Optionally, the cellDTX parameters may be used to determine the cellDTX activation time and / or the cellDTX inactivity time. Optionally, the cellDTX parameters and the indication of the cellDTX operation may be carried in the same signaling or in different signaling. For example, if RRC signaling includes the cellDTX parameters, and a MAC CE or DCI is used to indicate the cellDTX operation, this may also be understood as the MAC CE or DCI being used to activate the cellDTX operation. For another example, if RRC signaling includes the cellDTX parameters, the RRC signaling may also be used to indicate the cellDTX operation.

[0114] 2. The terminal device is not configured for cellDTX operation. That is, if the terminal device is not configured for cellDTX operation, the reception time of the SPS downlink data channel can be within the time when the network device sends downlink transmissions. The fact that the terminal device is not configured for cellDTX operation can be understood as: the network device configures cellDTX parameters for the terminal device but does not instruct cellDTX operation; or the network device does not configure cellDTX parameters for the terminal device.

[0115] As can be seen from the above-mentioned method 1 or method 2, the network device can instruct the cellDTX operation through RRC signaling, MAC CE or DCI. Conversely, the network device can exit the cellDTX operation through RRC signaling, MAC CE or DCI.

[0116] After step 301 , any of the following solutions may be used. Specifically, solution 1 includes step 302 . Solution 2 includes step 303 .

[0117] Solution 1:

[0118] 302. The terminal device sends feedback information of the SPS downlink data channel to the network device, wherein the sending time of the feedback information of the SPS downlink data channel is within the cellDRX inactive time.

[0119] Correspondingly, the network device can receive feedback information from the SPS downlink data channel of the terminal device.

[0120] The feedback information of the SPS downlink data channel sent by the terminal device to the network device can be understood as any of the following:

[0121] Case 1: The feedback information of the SPS downlink data channel is multiplexed in the uplink channel, and the terminal device sends the uplink channel to the network device. The uplink channel is a dynamically scheduled uplink data channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the uplink channel. Or, the uplink channel is an uplink control channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel is in the same time slot as the sending time of the uplink control channel, and the uplink control channel also includes the feedback information of the dynamically scheduled downlink data channel. Optionally, the uplink data channel can be PUSCH. Optionally, the uplink control channel can be PUCCH.

[0122] Case 2: When the terminal device receives the SPS downlink data channel, the terminal device sends feedback information of the SPS downlink data channel to the network device. In other words, when the terminal device receives the SPS downlink data channel, the terminal device will always send feedback information of the SPS downlink data channel to the network device.

[0123] Option 2

[0124] 303. The terminal device does not send feedback information of the SPS downlink data channel to the network device, wherein the sending time of the feedback information of the SPS downlink data channel is within the cellDRX inactive time.

[0125] The terminal device does not send feedback information of the SPS downlink data channel to the network device, which can be understood as any of the following:

[0126] Mode 1: If there is no other feedback information within the transmission time corresponding to the feedback information of the SPS downlink data channel, the terminal device does not send the feedback information of the SPS downlink data channel to the network device. The other feedback information here can be, for example, feedback information of the dynamically scheduled downlink data channel.

[0127] Method 2: When there is no dynamically scheduled uplink data channel allowed to be sent and no uplink control channel allowed to be sent within the time slot corresponding to the sending time of the feedback information of the SPS downlink data channel, the terminal device does not send the feedback information of the SPS downlink data channel to the network device.

[0128] Optionally, the method may further include: the terminal device receives SPS configuration information from the network device, where the SPS configuration information is used to indicate the first feedback mode or the second feedback mode of the SPS downlink data channel.

[0129] The first feedback mode is to report feedback information of the SPS downlink data channel after the terminal device receives the SPS downlink data channel. In other words, when the terminal device obtains the first feedback mode, case 2 can be adopted. That is, when the terminal device receives the SPS downlink data channel, the terminal device sends feedback information of the SPS downlink data channel to the network device.

[0130] The second feedback mode includes, after the terminal device receives the SPS downlink data channel, determining not to report the feedback information of the SPS downlink data channel according to the first condition, or determining to report the feedback information of the SPS downlink data channel according to the second condition.

[0131] In one possible implementation, the first condition is that no other feedback information exists within the transmission time corresponding to the feedback information of the SPS downlink data channel. That is, in this case, the terminal device can adopt mode 1. That is, when no other feedback information exists within the transmission time corresponding to the feedback information of the SPS downlink data channel, the terminal device does not send the feedback information of the SPS downlink data channel to the network device. In another possible implementation, the first condition is that no dynamically scheduled uplink data channel that is allowed to be sent and no uplink control channel that is allowed to be sent exist within the time slot where the transmission time corresponding to the feedback information of the SPS downlink data channel is located. That is, in this case, the terminal device can adopt mode 2. That is, when no dynamically scheduled uplink data channel that is allowed to be sent and no uplink control channel that is allowed to be sent exist within the time slot where the transmission time corresponding to the feedback information of the SPS downlink data channel is located, the terminal device does not send the feedback information of the SPS downlink data channel to the network device.

[0132] In one possible implementation, the second condition is that the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the dynamically scheduled uplink data channel that is allowed to be sent. That is to say, in this case, the terminal device can adopt Case 1. That is, the feedback information of the SPS downlink data channel is multiplexed in the uplink channel, and the terminal device sends the uplink channel to the network device. Among them, the uplink channel is the dynamically scheduled uplink data channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the uplink channel. In another possible implementation, the second condition is that the sending time corresponding to the feedback information of the SPS downlink data channel is in the same time slot as the sending time of the uplink control channel that is allowed to be sent. That is to say, in this case, the terminal device can adopt Case 1. That is, the feedback information of the SPS downlink data channel is multiplexed in the uplink channel, and the terminal device sends the uplink channel to the network device. Among them, the uplink channel is an uplink control channel that is allowed to be sent. The sending time corresponding to the feedback information of the SPS downlink data channel is in the same time slot as the sending time of the uplink control channel. The uplink control channel also includes feedback information of the dynamically scheduled downlink data channel.

[0133] Optionally, the SPS configuration information may further include at least one of the following: SPS period, number of HARQ processes configured for SPS, PUCCH resources for HARQ feedback configured for SPS, etc. The resources may include time-frequency resources.

[0134] Among them, the time domain resources in the time-frequency resources may include at least one of the following: frame, subframe, time slot, symbol, etc. In NR, the duration of a frame is 10 milliseconds (ms), and each frame is divided into 10 subframes, each subframe is 1ms long. Each subframe is divided into several time slots: when the cyclic prefix (CP) is a normal cyclic prefix (NCP), each time slot consists of 14 symbols; when the cyclic prefix is ​​an extended cyclic prefix (ECP), each time slot consists of 12 symbols. Of course, with the evolution of communication technology, the number of symbols included in a time slot may also be other values, which is not limited in this application.

[0135] The frequency domain resources in the time-frequency resources may include, for example, at least one of the following: subcarrier, resource block (RB), resource block group (RBG), sub-channel, bandwidth part (BWP), carrier. A resource block is a plurality of continuous subcarriers in the frequency domain. For example, a resource block may include 12 subcarriers. Multiple resource blocks may constitute a resource block group. A carrier is a continuous frequency range that complies with the system regulations. This frequency range may be determined by the center frequency of the carrier (denoted as the carrier frequency) and the bandwidth of the carrier. A carrier may include a partial bandwidth. A partial bandwidth may include one or more subchannels, and a subchannel may include multiple resource blocks. A subchannel may also be called a subband.

[0136] Optionally, the method may further include: the terminal device sending capability information to the network device, where the capability information is used to indicate that the terminal device supports the first feedback mode and / or the second feedback mode. The capability information may be carried in RRC signaling.

[0137] It can be seen that in the above embodiment, when the sending time corresponding to the feedback information of the SPS downlink data channel is within the inactive time of cellDRX, the terminal device sends the feedback information of the SPS downlink data channel to the network device or does not send the feedback information of the SPS downlink data channel to the network device. In this way, in the scenario where the cellDRX technology is applied, the network device and the terminal device can maintain a consistent understanding of the feedback information of the SPS downlink data channel, thereby avoiding repeated data transmission when the network device misunderstands the feedback information, thereby ensuring data transmission efficiency. In addition, by applying the cellDRX technology, the energy consumption of the terminal device and / or network device can also be reduced, which is beneficial to energy saving of the terminal device and / or network device.

[0138] Generally speaking, a base station can send a DCI to a terminal device to activate SPS / DSCH transmission. When a network device uses cell DTX technology, the DCI may be sent within the activation time of cell DRX. In this case, ensuring data transmission efficiency becomes a technical issue that needs to be addressed at this stage. Based on this, the present application provides the communication method shown in Figure 4 to address this issue.

[0139] As shown in FIG4 , another communication method is provided in an embodiment of the present application. In the communication method shown in FIG4 , the terminal device is configured with cellDTX operation. The communication method includes but is not limited to the following steps:

[0140] 401. A terminal device receives first information from a network device, where the first information is used to indicate downlink SPS resources.

[0141] Correspondingly, the network device sends the first information to the terminal device.

[0142] 402. The network device sends second information to the terminal device, where the second information is used to activate downlink SPS resources. The second information is sent within the activation time of cellDTX.

[0143] Correspondingly, the terminal device receives the second information from the network device.

[0144] The specific implementation of steps 401 to 402 is described below.

[0145] The downlink SPS resource may include an SPS period, etc. Optionally, the first information may also be used to indicate a processing method of the terminal device for the first SPS downlink data channel. The reception time of the first SPS downlink data channel is within the cellDTX inactive time. The first SPS downlink data channel is the SPS downlink data channel activated by the second information and having the earliest reception time after receiving the second information.

[0146] Optionally, the terminal device may process the first SPS downlink data channel in the following ways:

[0147] Implementation method 1: This processing method includes not receiving the first SPS downlink data channel from the network device. This processing method also includes, within the downlink SPS resource period after the reception time of the first SPS downlink data channel, the terminal device determining whether to receive a subsequent SPS downlink data channel based on a pre-set protocol criterion. The pre-set protocol criterion includes at least one of the following: whether the reception time of the SPS downlink data channel falls within the activation time of cellDTX, and whether the symbol corresponding to the reception time of the SPS downlink data channel is an uplink symbol configured by higher-layer signaling. For example, if the subsequent SPS downlink data channel is the second SPS downlink data channel, and the reception time of the second SPS downlink data channel falls within the activation time of cellDTX, the terminal device receives the second SPS downlink data channel. For another example, if the subsequent SPS downlink data channel is the second SPS downlink data channel, and the reception time of the second SPS downlink data channel falls within the inactivation time of cellDTX, the terminal device does not receive the second SPS downlink data channel. For another example, the subsequent SPS downlink data channel is the second SPS downlink data channel, the symbol corresponding to the reception time of the second SPS downlink data channel is not the uplink symbol configured by the higher-layer signaling, and the terminal device receives the second SPS downlink data channel. For another example, the subsequent SPS downlink data channel is the second SPS downlink data channel, the symbol corresponding to the reception time of the second SPS downlink data channel is the uplink symbol configured by the higher-layer signaling, and the terminal device does not receive the second SPS downlink data channel.

[0148] Implementation method 2: This processing method includes not receiving all SPS downlink data channels from the network device, where all SPS downlink data channels include the first SPS downlink data channel.

[0149] Implementation method 3: This processing method includes receiving a first SPS downlink data channel from a network device. This processing method also includes reporting feedback information of the first SPS downlink data channel after the terminal device receives the SPS downlink data channel.

[0150] Optionally, the first information may be carried in RRC signaling or MAC CE.

[0151] Optionally, the second information may be carried in the DCI.

[0152] After step 402, any of the following solutions may be implemented. Specifically, Solution 1 includes step 403. Solution 2 includes step 404. Solution 3 includes step 405. Optionally, if the network device instructs the terminal device to adopt the above-mentioned embodiment 1, Solution 1 may be implemented. If the network device instructs the terminal device to adopt the above-mentioned embodiment 2, Solution 2 may be implemented. If the network device instructs the terminal device to adopt the above-mentioned embodiment 3, Solution 3 may be implemented.

[0153] Solution 1:

[0154] 403. The terminal device does not receive the first SPS downlink data channel from the network device, and the reception time of the first SPS downlink data channel is within the inactive time of cellDTX.

[0155] It should be pointed out that when the terminal device does not receive the first SPS downlink data channel, within the period of the downlink SPS resources after the reception time of the first SPS downlink data channel, the terminal device can determine whether to receive the SPS downlink data channel based on whether the reception time of the subsequent SPS downlink data channel is within the activation time of cellDTX, whether the symbol corresponding to the reception time of the subsequent SPS downlink data channel is the uplink symbol configured by the high-level signaling, etc.

[0156] Optionally, the method may further include: the terminal device sending feedback information of the first SPS downlink data channel to the network device or not sending feedback information of the first SPS downlink data channel to the network device.

[0157] The feedback information of the first SPS downlink data channel sent by the terminal device to the network device can be understood as any of the following:

[0158] 1. When the terminal device receives the first SPS downlink data channel, the terminal device sends feedback information for the first SPS downlink data channel to the network device. That is, when the terminal device receives the first SPS downlink data channel, the terminal device always sends feedback information for the first SPS downlink data channel to the network device. Optionally, the terminal device is also configured with cellDRX operation, and the transmission time corresponding to the feedback information for the first SPS downlink data channel is within the cellDRX inactive time, or the transmission time is within the cellDRX active time.

[0159] 2. The terminal device is also configured with cellDRX operation. When the sending time corresponding to the feedback information of the first SPS downlink data channel is within the activation time of cellDRX, the terminal device sends the feedback information of the first SPS downlink data channel to the network device.

[0160] The sending time corresponding to the feedback information of the first SPS downlink data channel can be achieved by any of the following methods, specifically:

[0161] 1. The sending time can be determined based on the receiving time and offset of the first SPS downlink data channel. Alternatively, the sending time slot can be determined based on the receiving time and offset of the first SPS downlink data channel.

[0162] 2. The sending time can be determined based on the receiving time and offset of the second information. Alternatively, the sending time can be determined based on the receiving time and offset of the second information.

[0163] It should be noted that the offset mentioned in the above-mentioned method 1 or method 2 may refer to K1.

[0164] Option 2

[0165] 404. The terminal device does not receive all SPS downlink data channels from the network device, where all SPS downlink data channels include the first SPS downlink data channel.

[0166] Step 404 can also be understood as: the terminal device does not allow the reception time of the first SPS downlink data channel to fall within the cellDTX inactive time. In this case, the terminal device may consider it a false alarm. That is, the received second information is considered to be false information, indicating a detection error by the terminal device. Therefore, the SPS downlink data channel is not valid during the downlink SPS resource period after the reception time of the first SPS downlink data channel. In this case, the terminal device does not send feedback information to the network device.

[0167] Option 3

[0168] 405. The terminal device receives the first SPS downlink data channel from the network device.

[0169] Optionally, the method may further include: the terminal device sends feedback information of the first SPS downlink data channel to the network device.

[0170] It can be seen that in the above embodiment, when the sending time of the second information (the second information is used to activate the downlink SPS resource) is within the activation time of cellDTX, and the receiving time of the first SPS downlink data channel is within the inactivation time of cellDTX, the terminal device may not receive the first SPS downlink data channel from the network device, not receive all SPS downlink data channels from the network device (all SPS downlink data channels include the first SPS downlink data channel), or receive the first SPS downlink data channel from the network device. In this way, in the scenario where the cellDTX technology is applied, the network device and the terminal device can maintain a consistent understanding of the transmission of the SPS downlink data channel, thereby avoiding errors in the terminal device and ensuring data transmission efficiency. In addition, by applying the cellDRX technology, the energy consumption of the terminal device and / or the network device can also be reduced, which is beneficial to energy saving of the terminal device and / or the network device.

[0171] The above mainly introduces the solution provided by the present application from the perspective of the interaction between various devices. It is understandable that, in order to realize the above functions, the above-mentioned implementation devices include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0172] In the embodiments of the present application, the terminal device or network device can be divided into functional modules according to the above-mentioned method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated module can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is schematic and is only a logical functional division. In actual implementation, other division methods may be used.

[0173] Refer to Figure 5, which is a structural diagram of a communication device provided in an embodiment of the present application. The communication device 500 can be applied to the method shown in any one of the embodiments in Figures 2 to 4 above. As shown in Figure 5, the communication device 500 includes: a processing module 501 and a transceiver module 502. The processing module 501 can be one or more processors, and the transceiver module 502 can be a transceiver or a communication interface. The communication device can be used to implement the terminal device or network device involved in any of the above method embodiments, or to implement the functions of the network element involved in any of the above method embodiments. The network element or network function can be a network element in a hardware device, a software function running on dedicated hardware, or a virtualization function instantiated on a platform (for example, a cloud platform). Optionally, the communication device 500 can also include a storage module 503 for storing the program code and data of the communication device 500.

[0174] In one embodiment, when the communication device serves as a terminal device or a chip used in a terminal device, it executes the steps performed by the terminal device in the above-mentioned method embodiments. The transceiver module 502 is used to specifically execute the sending and / or receiving actions performed by the terminal device in any of the embodiments shown in Figures 2 to 4, such as supporting the terminal device to execute other processes of the technology described herein. The processing module 501 can be used to support the communication device 500 in executing the processing actions in the above-mentioned method embodiments, such as supporting the terminal device to execute other processes of the technology described herein.

[0175] Exemplarily, the transceiver module 502 is configured to receive first information from a network device, where the first information includes a cell discontinuous transmission cellDTX parameter, which is used to determine the inactive time of the cellDTX; and the processing module 501 is configured to determine, based on the signaling containing the second information, whether to send feedback information of the SPS downlink data channel to the network device through the transceiver module 502, where the second information is used to indicate the cellDTX operation, and the reception time of the SPS downlink data channel is within the inactive time of the cellDTX.

[0176] Optionally, when determining whether to send feedback information of the SPS downlink data channel to the network device based on the signaling containing the second information, the processing module 501 is used to: if the signaling containing the second information is RRC signaling MAC CE, the feedback information of the SPS downlink data channel is not sent to the network device through the transceiver module 502.

[0177] Optionally, the signaling in which the second information is located is DCI, and the feedback information of the SPS downlink data channel is included in the first codebook. When determining whether to send the feedback information of the SPS downlink data channel to the network device according to the signaling in which the second information is located, the processing module 501 is configured to: if the first codebook does not include feedback information of other downlink data channels, the first codebook is not sent to the network device through the transceiver module 502, and the first codebook is a semi-static codebook; or, if the first codebook includes feedback information of other downlink data channels, the first codebook is sent to the network device through the transceiver module 502, the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filler information; or, if the first codebook is sent to the network device through the transceiver module 502, the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is filler information.

[0178] As another example, the communication device 500 is configured with cellDRX operation, and the transceiver module 502 is used to: receive a semi-persistently scheduled SPS downlink data channel from a network device; send feedback information of the SPS downlink data channel to the network device, or not send feedback information of the SPS downlink data channel to the network device; wherein the sending time corresponding to the feedback information of the SPS downlink data channel is within the inactive time of the cellDRX.

[0179] Optionally, when sending feedback information of the SPS downlink data channel to the network device, the feedback information of the SPS downlink data channel is multiplexed in the uplink channel, and the transceiver module 502 is used to send the uplink channel to the network device; wherein, the uplink channel is a dynamically scheduled uplink data channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the uplink channel; or, the uplink channel is an uplink control channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel is in the same time slot as the sending time of the uplink control channel, and the uplink control channel also includes feedback information of the dynamically scheduled downlink data channel.

[0180] Optionally, when feedback information of the SPS downlink data channel is not sent to the network device, the transceiver module 502 is used to: not send feedback information of the SPS downlink data channel to the network device if there is no other feedback information within the sending time corresponding to the feedback information of the SPS downlink data channel.

[0181] Optionally, the transceiver module 502 is also used to: receive SPS configuration information from the network device, the SPS configuration information is used to indicate the first feedback mode or the second feedback mode of the SPS downlink data channel; the first feedback mode is to report the feedback information of the SPS downlink data channel after the terminal device receives the SPS downlink data channel; the second feedback mode includes, after the terminal device receives the SPS downlink data channel, determining not to report the feedback information of the SPS downlink data channel according to the first condition, or, according to the second condition, determining to report the feedback information of the SPS downlink data channel; the first condition is that there is no other feedback information within the sending time corresponding to the feedback information of the SPS downlink data channel; the second condition is that the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the dynamically scheduled uplink data channel that is allowed to be sent; or, the second condition is that the sending time corresponding to the feedback information of the SPS downlink data channel and the sending time of the uplink control channel that is allowed to be sent are in the same time slot.

[0182] Optionally, the transceiver module 502 is further used to: send capability information to the network device, where the capability information is used to indicate that the terminal device supports the first feedback mode and / or the second feedback mode.

[0183] As another example, the communication device 500 is configured with a cellDTX operation, and the transceiver module 502 is used to: receive first information from the network device, the first information is used to indicate downlink semi-persistent scheduling of SPS resources; receive second information from the network device, the second information is used to activate downlink SPS resources, and the sending time of the second information is within the activation time of cellDTX; not receive the first SPS downlink data channel from the network device; or, not receive all SPS downlink data channels from the network device, all SPS downlink data channels include the first SPS downlink data channel; wherein the receiving time of the first SPS downlink data channel is within the inactive time of cellDTX, and the first SPS downlink data channel is the SPS downlink data channel activated by the second information with the earliest receiving time after receiving the second information.

[0184] Optionally, the transceiver module 502 is further configured to send feedback information of the first SPS downlink data channel to the network device.

[0185] Optionally, the transceiver module 502 is further configured not to send feedback information of the first SPS downlink data channel to the network device.

[0186] In another example, when the communication device functions as a network device or a chip used in a network device, and executes the steps performed by the network device in the above-described method embodiments, the transceiver module 502 is configured to specifically execute the sending and / or receiving actions performed by the network device in any of the embodiments shown in Figures 2 to 4 , such as supporting the network device in executing other processes of the technology described herein. The processing module 501 can be configured to support the communication device 500 in executing the processing actions in the above-described method embodiments, such as supporting the network device in executing other processes of the technology described herein.

[0187] Exemplarily, the transceiver module 502 is configured to send first information to a terminal device, where the first information includes a cellDTX parameter, and the cellDTX parameter is used to determine the inactive time of the cellDTX. The processing module 501 is configured to determine, based on signaling containing second information, whether to receive feedback information of an SPS downlink data channel from the terminal device through the transceiver module 502, where the second information is used to indicate a cellDTX operation, and the reception time of the SPS downlink data channel is within the inactive time of the cellDTX.

[0188] Optionally, when determining whether to receive feedback information of the SPS downlink data channel from the terminal device based on the signaling containing the second information, the processing module 501 is used to: if the signaling containing the second information is radio resource control RRC signaling or media access control layer control unit MAC CE, the feedback information of the SPS downlink data channel from the terminal device is not received through the transceiver module 502.

[0189] Optionally, the signaling containing the second information is downlink control information DCI, and the feedback information of the SPS downlink data channel is included in the first codebook. When determining whether to receive the feedback information of the SPS downlink data channel from the terminal device based on the signaling containing the second information, the processing module 501 is used to: the first codebook does not include feedback information of other downlink data channels, and the first codebook is not received from the terminal device through the transceiver module 502, and the first codebook is a semi-static codebook; or, the first codebook includes feedback information of other downlink data channels, and the first codebook is received from the terminal device through the transceiver module 502, the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is fill information; or, the first codebook is received from the terminal device through the transceiver module 502, the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is fill information.

[0190] In one possible embodiment, when the terminal device or network device is a chip, the transceiver module 502 can be a communication interface, a pin, or a circuit. The communication interface can be used to input data to be processed into the processor and output the processing results of the processor. In a specific implementation, the communication interface can be a general purpose input and output (GPIO) interface that can be connected to multiple peripheral devices (such as a display (LCD), a camera (camara), a radio frequency (RF) module, an antenna, etc.). The communication interface is connected to the processor via a bus.

[0191] The processing module 501 can be a processor that can execute computer-executable instructions stored in the storage module to cause the chip to perform the method involved in any of the embodiments described in Figures 2 to 4. Furthermore, the processor can include a controller, an arithmetic unit, and registers. For example, the controller is primarily responsible for decoding instructions and issuing control signals for operations corresponding to the instructions. The arithmetic unit is primarily responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations, and can also perform address operations and conversions. The registers are primarily responsible for storing register operands and intermediate operation results temporarily stored during instruction execution. In a specific implementation, the processor's hardware architecture can be an ASIC architecture, a microprocessor without interlocked piped stages architecture (MIPS) architecture, an advanced RISC machine (ARM) architecture, or a network processor (NP) architecture, among others. The processor can be single-core or multi-core. The storage module can be a storage module within the chip, such as a register or cache. The storage module may also be a storage module located outside the chip, such as a ROM or other types of static storage devices that can store static information and instructions, RAM, etc.

[0192] It should be noted that the functions corresponding to the processor and the interface can be implemented through hardware design, software design, or a combination of hardware and software, and there is no limitation here.

[0193] Figure 6 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. It is understandable that the communication device 610 includes necessary means such as modules, units, elements, circuits, or interfaces, which are appropriately configured together to implement this solution. The communication device 610 can be the above-mentioned terminal device or network device, or it can be a component (such as a chip) in these devices to implement the method described in the above-mentioned method embodiment. The communication device 610 includes one or more processors 611. The processor 611 can be a general-purpose processor or a dedicated processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a terminal device, network device, or chip, etc.), execute software programs, and process data of software programs.

[0194] Optionally, in one design, the processor 611 may include a program 613 (sometimes also referred to as code or instruction), which may be run on the processor 611 so that the communication device 610 performs the method described in the above embodiment. In another possible design, the communication device 610 includes a circuit (not shown in FIG6 ), which is used to implement the functions of the terminal device or network device in the above embodiment. Optionally, the communication device 610 may include one or more memories 612 on which a program 614 (sometimes also referred to as code or instruction) is stored, which may be run on the processor 611 so that the communication device 610 performs the method described in the above method embodiment.

[0195] Optionally, the processor 611 and / or the memory 612 may include an AI module 617 and an AI module 618, which are used to implement AI-related functions. The AI ​​module may be implemented using software, hardware, or a combination of software and hardware. For example, the AI ​​module may include a real-time information processing (RIC) module. For example, the AI ​​module may be a near-real-time RIC or a non-real-time RIC. Optionally, the processor 611 and / or the memory 612 may also store data. The processor and memory may be provided separately or integrated.

[0196] Optionally, the communication device 610 may further include a transceiver 615 and / or an antenna 616. The processor 611 may also be referred to as a processing unit, and controls the communication device (e.g., a terminal device or a network device). The transceiver 615 may also be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, and is configured to implement the transceiver function of the communication device via the antenna 616.

[0197] An embodiment of the present application also provides a communication device, which includes at least one processor and a memory; wherein the memory is used to store computer programs or instructions; and at least one processor is used to execute the computer programs or instructions in the memory, so that the method described in any one of the embodiments in Figures 2 to 4 is executed.

[0198] An embodiment of the present application further provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed, the computer executes any method described in any one of the embodiments in Figures 2 to 4.

[0199] An embodiment of the present application further provides a computer program product, which includes: computer program code, and when the computer program code is executed by a computer, causes the computer to execute any method described in any one of the embodiments in Figures 2 to 4.

[0200] An embodiment of the present application also provides a chip, which includes at least one processor and an interface. The processor is used to read and execute instructions stored in a memory. When the instructions are executed, the chip executes any method described in any one of the embodiments in Figures 2 to 4.

[0201] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present application. In addition, the network element units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware or in the form of software network element units.

[0202] If the above-mentioned integrated unit is implemented in the form of a software network element unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part that essentially contributes to the technical solution of the present application, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, terminal device, cloud server, or network device, etc.) to perform all or part of the steps of the above-mentioned methods in each embodiment of the present application. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk. The above is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method is applied to a terminal device, and the method comprises: receiving first information from a network device, wherein the first information includes a cell discontinuous transmission cellDTX parameter, wherein the cellDTX parameter is used to determine an inactive time of the cellDTX; Determine whether to send feedback information of a semi-persistent scheduling SPS downlink data channel to the network device according to signaling containing second information, wherein the second information is used to indicate the cellDTX operation, and a reception time of the SPS downlink data channel is within an inactive time of the cellDTX.

2. The method according to claim 1, characterized in that The determining, according to the signaling containing the second information, whether to send feedback information of the SPS downlink data channel to the network device includes: The signaling containing the second information is a radio resource control RRC signaling or a media access control layer control element MAC CE, and the feedback information of the SPS downlink data channel is not sent to the network device.

3. The method according to claim 1, characterized in that The signaling where the second information is located is downlink control information DCI, the feedback information of the SPS downlink data channel is included in the first codebook, and the determining, according to the signaling where the second information is located, whether to send the feedback information of the SPS downlink data channel to the network device includes: The first codebook does not include feedback information of other downlink data channels, the first codebook is not sent to the network device, and the first codebook is a semi-static codebook; or, The first codebook includes feedback information of the other downlink data channels, and the first codebook is sent to the network device, wherein the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is padding information; or, The first codebook is sent to the network device, where the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is the filling information.

4. The method according to claim 3, characterized in that: The filling information is a negative acknowledgement NACK.

5. The method according to any one of claims 1 to 4, characterized in that: The terminal device is configured with a cell discontinuous reception cellDRX operation, and the sending time corresponding to the feedback information of the SPS downlink data channel is within the activation time of the cellDRX.

6. A communication method, characterized in that: The method is applied to a terminal device, the terminal device is configured with a cell discontinuous reception cellDRX operation, and the method includes: Receive a semi-persistently scheduled SPS downlink data channel from a network device; Sending feedback information of the SPS downlink data channel to the network device, or not sending feedback information of the SPS downlink data channel to the network device; The sending time corresponding to the feedback information of the SPS downlink data channel is within the inactive time of the cellDRX.

7. The method according to claim 6, characterized in that The sending feedback information of the SPS downlink data channel to the network device includes: The feedback information of the SPS downlink data channel is multiplexed in an uplink channel, and the uplink channel is sent to the network device; The uplink channel is a dynamically scheduled uplink data channel that is allowed to be sent, and the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the uplink channel; or, The uplink channel is an uplink control channel that is allowed to be sent, the sending time corresponding to the feedback information of the SPS downlink data channel and the sending time of the uplink control channel are in the same time slot, and the uplink control channel also includes feedback information of the dynamically scheduled downlink data channel.

8. The method according to claim 6, characterized in that The not sending the feedback information of the SPS downlink data channel to the network device includes: When there is no other feedback information within the sending time corresponding to the feedback information of the SPS downlink data channel, the feedback information of the SPS downlink data channel is not sent to the network device.

9. The method according to any one of claims 6 to 8, characterized in that: The terminal device is configured with a cell discontinuous reception cellDTX operation, and the reception time of the SPS downlink data channel is within the activation time of the cellDTX.

10. The method according to any one of claims 6 to 8, characterized in that: The method further comprises: Receiving SPS configuration information from a network device, where the SPS configuration information is used to indicate a first feedback mode or a second feedback mode of the SPS downlink data channel; The first feedback mode is reporting feedback information of the SPS downlink data channel after the terminal device receives the SPS downlink data channel; The second feedback mode includes determining, after the terminal device receives the SPS downlink data channel, that the terminal device is not on the SPS downlink data channel according to the first condition. reporting feedback information of the SPS downlink data channel, or, according to the second condition, determining to report feedback information of the SPS downlink data channel; The first condition is that there is no other feedback information within the sending time corresponding to the feedback information of the SPS downlink data channel; The second condition is that the sending time corresponding to the feedback information of the SPS downlink data channel overlaps with the sending time of the dynamically scheduled uplink data channel that is allowed to be sent; or, the second condition is that the sending time corresponding to the feedback information of the SPS downlink data channel and the sending time of the uplink control channel that is allowed to be sent are in the same time slot.

11. The method according to claim 10, characterized in that The method further comprises: Send capability information to the network device, where the capability information is used to indicate that the terminal device supports the first feedback mode and / or the second feedback mode.

12. A communication method, characterized in that: The method is applied to a terminal device, the terminal device is configured with a cell discontinuous transmission cellDTX operation, and the method includes: Receiving first information from a network device, where the first information is used to indicate downlink semi-persistent scheduling SPS resources; receiving second information from the network device, where the second information is used to activate the downlink SPS resource, and a sending time of the second information is within an activation time of the cellDTX; not receiving a first SPS downlink data channel from the network device; or, Not receiving all SPS downlink data channels from the network device, wherein all SPS downlink data channels include the first SPS downlink data channel; The receiving time of the first SPS downlink data channel is within the non-activated time of the cellDTX, and the first SPS downlink data channel is the SPS downlink data channel activated by the second information and having the earliest receiving time after receiving the second information.

13. The method according to claim 12, characterized in that The method further comprises: Send feedback information of the first SPS downlink data channel to the network device.

14. The method according to claim 13, characterized in that The terminal device is also configured with a cell discontinuous reception cellDRX operation, and the sending time corresponding to the feedback information of the first SPS downlink data channel is within the activation time of the cellDRX.

15. The method according to claim 13 or 14, characterized in that The sending time corresponding to the feedback information of the first SPS downlink data channel is determined according to the receiving time and offset of the first SPS downlink data channel; or, The sending time corresponding to the feedback information of the first SPS downlink data channel is determined according to the receiving time of the second information and the offset.

16. The method according to claim 12, characterized in that The method further comprises: The feedback information of the first SPS downlink data channel is not sent to the network device.

17. A communication method, characterized in that: The method is applied to a network device, and the method comprises: Sending first information to a terminal device, where the first information includes a cell discontinuous transmission cellDTX parameter, where the cellDTX parameter is used to determine an inactive time of the cellDTX; Determine whether to receive feedback information of a semi-persistent scheduling SPS downlink data channel from the terminal device according to the signaling of the second information, the second information is used to indicate the cellDTX operation, and the reception time of the SPS downlink data channel is within the inactive time of the cellDTX.

18. The method according to claim 17, characterized in that The determining, according to the signaling containing the second information, whether to receive feedback information of the SPS downlink data channel from the terminal device includes: The signaling containing the second information is a radio resource control RRC signaling or a media access control layer control unit MAC CE, and does not receive feedback information of the SPS downlink data channel from the terminal device.

19. The method according to claim 17, characterized in that The signaling where the second information is located is downlink control information DCI, the feedback information of the SPS downlink data channel is included in the first codebook, and the determining whether to receive the feedback information of the SPS downlink data channel from the terminal device according to the signaling where the second information is located includes: The first codebook does not include feedback information of other downlink data channels, the first codebook is not received from the terminal device, and the first codebook is a semi-static codebook; or, The first codebook includes feedback information of the other downlink data channels, and the first codebook is received from the terminal device, wherein the first codebook is a semi-static codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is padding information; or, The first codebook is received from the terminal device, where the first codebook is a dynamic codebook, and the feedback bit corresponding to the SPS downlink data channel in the first codebook is the filling information.

20. A communication device, characterized in that: The method comprises a unit or a module for implementing the method according to any one of claims 1 to 19.

21. A communication device, characterized in that: The communication device includes at least one processor and a memory; wherein the memory is used to store computer programs or instructions; and the at least one processor is used to execute the computer program or instructions in the memory, so that the method described in any one of claims 1 to 19 is executed.

22. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, which, when executed, cause the computer to perform the method according to any one of claims 1 to 19.

23. A computer program product, characterized in that The computer program product comprises: a computer program code, and when the computer program code is executed by a computer, the computer is caused to perform the method according to any one of claims 1 to 19.

24. A chip, characterized in that: The chip includes at least one processor and an interface, wherein the processor is used to read and execute instructions stored in a memory, and when the instructions are executed, the chip executes the method according to any one of claims 1 to 19.

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