Communication method and device

Abstract

Disclosed are a communication method and device, the method comprising: receiving first downlink control information (DCI) sent by a network device, the first DCI indicating a usage condition of a physical downlink shared channel (PDSCH) transmission opportunity configured by semi-persistent scheduling (SPS); based on the method, the terminal equipment can determine the use condition of the PDSCH transmission opportunity configured by the SPS. Therefore, the terminal equipment does not monitor the PDSCH at the transmission opportunity of the unused PDSCH configured by the SPS, so that the power consumption of the terminal equipment is saved.

Description

Technical Field

[0001] The present invention relates to the field of communications, and in particular to a communication method and device. Background Art

[0002] The current New Radio (NR) provides two scheduling methods for downlink transmissions: dynamic scheduling and semi-persistent scheduling (SPS). Dynamic scheduling can configure different parameters for each transmission to adapt to changes in channel conditions. However, dynamic scheduling requires the receiver to blindly detect control information, which increases the receiver's power consumption. SPS allows for multiple uses with a single configuration. Once an SPS configuration is active, the parameters of that SPS configuration can be used for multiple transmissions.

[0003] Currently, for extended reality (XR) services, when the downlink transmission scheduling mode is SPS, the power consumption of terminal devices is relatively high. Summary of the Invention

[0004] The present application provides a communication method and apparatus that are conducive to saving power consumption of terminal equipment.

[0005] In a first aspect, the present application provides a communication method, the method comprising:

[0006] First downlink control information DCI sent by a network device is received, where the first DCI indicates a usage condition of a physical downlink shared channel PDSCH transmission opportunity configured by a semi-persistent scheduling SPS.

[0007] Based on this method, it is helpful for the terminal device to determine the usage of the PDSCH transmission opportunities configured by the SPS. Therefore, the terminal device can not monitor the PDSCH during the unused PDSCH transmission opportunities configured by the SPS, thereby saving power consumption of the terminal device.

[0008] In a possible embodiment, the first DCI indicates the usage of the PDSCH transmission opportunities configured by the SPS, including: the first DCI indicates the usage of N sets of PDSCH transmission opportunities configured by the activated SPS in the first time window, where N is an integer greater than or equal to 1.

[0009] Based on this possible embodiment, it is helpful for the terminal device to determine the usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a period of time.

[0010] In a possible embodiment, N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0011] When the value of the first bit is the first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is the second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window, the first bit is any one of the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0012] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0013] Based on this possible embodiment, it is beneficial to save indication bits in the first DCI.

[0014] In a possible embodiment, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0015] In a possible embodiment, the transmission end time of the first DCI is the start time of the first time window.

[0016] In a possible embodiment, configuration information sent by a network device is received, where the configuration information is used to configure a number of indicator bits corresponding to each set of SPS configurations, where one bit in the number of indicator bits corresponds to one PDSCH transmission opportunity;

[0017] The first DCI indicates the usage of the PDSCH transmission opportunity configured by the SPS, including:

[0018] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

[0019] Based on this possible embodiment, it is helpful for the terminal device to determine the usage of the corresponding number of indication bits of the PDSCH transmission opportunities for activating the SPS configuration.

[0020] In a possible embodiment, N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0021] When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one in the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration;

[0022] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission opportunities of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0023] Based on this possible embodiment, it is beneficial to save the indication bits of the first DCI.

[0024] In a possible embodiment, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0025] In a possible embodiment, the number of indication bits corresponding to each set of SPS configurations is the same.

[0026] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including:

[0027] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations starting from the transmission end time of the first DCI.

[0028] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0029] The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

[0030] Based on this possible embodiment, it is beneficial to save the indication bits of the first DCI.

[0031] In a possible embodiment, the start time of the second time window is the end time of transmission of the first DCI.

[0032] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0033] For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0034] Based on this possible embodiment, it is beneficial to save the indication bits of the first DCI.

[0035] In a possible embodiment, the first DCI is an activation DCI, or the first DCI is a non-scheduled DCI, or the first DCI is carried on a PDSCH.

[0036] In a second aspect, the present application provides a communication method, the method comprising:

[0037] A first downlink control information DCI is sent to the terminal device, where the first DCI indicates the usage of the physical downlink shared channel PDSCH transmission opportunity configured by the semi-static scheduling SPS.

[0038] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0039] The first DCI indicates usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a first time window, where N is an integer greater than or equal to 1.

[0040] In a possible embodiment, N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0041] When the value of the first bit is the first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is the second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window, the first bit is any one of the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0042] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0043] In a possible embodiment, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0044] In a possible embodiment, the transmission end time of the first DCI is the start time of the first time window.

[0045] In a possible embodiment, configuration information is sent to the terminal device, where the configuration information is used to configure the number of indication bits corresponding to each set of SPS configurations, where one bit in the number of indication bits corresponds to one PDSCH transmission opportunity;

[0046] The first DCI indicates the usage of the PDSCH transmission opportunity configured by the SPS, including:

[0047] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

[0048] In a possible embodiment, N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0049] When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one in the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration;

[0050] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission opportunities of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0051] In a possible embodiment, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0052] In a possible embodiment, the number of indication bits corresponding to each set of SPS configurations is the same.

[0053] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including:

[0054] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations starting from the transmission end time of the first DCI.

[0055] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0056] The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

[0057] In a possible embodiment, the start time of the second time window is the end time of transmission of the first DCI.

[0058] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0059] For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0060] In a possible embodiment, the first DCI is an activation DCI, or the first DCI is a non-scheduled DCI, or the first DCI is carried on a PDSCH.

[0061] The beneficial effects of the second aspect can be referred to the beneficial effects of the first aspect, and will not be repeated here.

[0062] In a third aspect, the present application provides a communication device, which includes a unit for executing the method of the first aspect or the second aspect.

[0063] In a fourth aspect, the present application provides a chip comprising a processor and a communication interface, wherein the processor is configured to enable the chip to execute the method of the first aspect or the second aspect above.

[0064] In the fifth aspect, the present application provides a module device, which includes a communication module, a power module, a storage module and a chip, wherein: the power module is used to provide power to the module device; the storage module is used to store data and instructions; the communication module is used for internal communication within the module device, or for the module device to communicate with external devices; the chip is used to execute the method of the first or second aspect above.

[0065] In a sixth aspect, an embodiment of the present invention discloses a communication device, which includes a memory and a processor, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method of the first aspect or the second aspect above.

[0066] In a seventh aspect, the present application provides a computer-readable storage medium, which stores computer-readable instructions. When the computer-readable instructions are executed on a communication device, the communication device executes the method of the first or second aspect mentioned above.

[0067] In an eighth aspect, the present application provides a computer program or computer program product, comprising codes or instructions, which, when executed on a computer, enable the computer to execute the method of the first or second aspect described above.

[0068] In a ninth aspect, the present application provides a communication system comprising a terminal device and a network device, wherein the terminal device is used to execute the method described in the first aspect, and the network device is used to execute the method described in the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0070] Figure 1 is a schematic diagram of a communication system 10 provided in an embodiment of the present application;

[0071] Figure 2This is a transmission diagram of an XR service provided in an embodiment of the present application;

[0072] Figure 3 This is a schematic diagram of a PDSCH transmission timing provided by an embodiment of the present application;

[0073] Figure 4 This is a flow chart of a communication method provided in an embodiment of the present application;

[0074] Figures 5 to 13 is a schematic diagram of the SPS configuration provided in an embodiment of the present application;

[0075] Figure 14 This is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0076] Figure 15 This is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0077] Figure 16 It is a structural diagram of a module device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0078] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this invention.

[0079] The terms used in the following embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the", and "this" are intended to include plural expressions as well, unless the context clearly indicates otherwise.

[0080] In the embodiments of this application, "and / or" describes the relationship between associated objects and indicates that three relationships can exist. For example, "A and / or B" can represent the following three situations: A exists alone; A and B exist simultaneously; and B exists alone. A and B can be singular or plural.

[0081] In the embodiments of the present application, the symbol " / " can indicate that the preceding and following objects are in an "or" relationship. In addition, the symbol " / " can also represent a division sign, that is, performing a division operation. For example, A / B can mean A divided by B.

[0082] In the embodiments of the present application, "at least one item" or similar expressions refers to any combination of these items, including any combination of single items or plural items, and refers to one or more, and multiple refers to two or more. For example, at least one item (item) of a, b, or c can represent the following seven situations: a, b, c, a and b, a and c, b and c, a, b, and c. Among them, each of a, b, and c can be an element or a set containing one or more elements.

[0083] In the embodiments of this application, "equal to" can be used in conjunction with "greater than" and is applicable to the technical solution adopted when "greater than" is used, and can also be used in conjunction with "less than" and is applicable to the technical solution adopted when "less than" is used. When "equal to" is used in conjunction with "greater than", it should not be used in conjunction with "less than"; when "equal to" is used in conjunction with "less than", it should not be used in conjunction with "greater than".

[0084] It should be noted that the terms "first", "second", "third", etc. in the specification and claims of the present application and in the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0085] To facilitate understanding of the embodiments of the present application, the system architecture involved in the present application is described below.

[0086] The present application can be applied to a fifth generation (5G) system, also known as a new radio (NR) system; or can be applied to a sixth generation (6G) system, or a seventh generation (7G) system, or other future communication systems; or can also be used in a device to device (D2D) system, a machine to machine (M2M) system, a vehicle to everything (V2X), and the like.

[0087] This application can be applied to Figure 1 The system architecture shown. Figure 1 The communication system 10 shown may include, but is not limited to, a network device 110 and a terminal device 120 . Figure 1The number and form of the devices are for example only and do not constitute a limitation on the embodiments of the present application. For example, multiple terminal devices may be included in actual applications.

[0088] 1. Terminal Equipment

[0089] A terminal device can be a device with transceiver functions and can also be called a terminal, user equipment (UE), remote terminal equipment (remote UE), relay UE, access terminal equipment, user unit, user station, mobile station, mobile station, remote station, mobile device, user terminal equipment, intelligent terminal equipment, wireless communication equipment, user agent, or user device. It should be noted that a relay device is a terminal device that can provide relay forwarding services for other terminal devices (including remote terminal devices).

[0090] For example, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a mixed reality (MR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0091] For another example, the terminal device may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR communication system, a 6G communication system), or a terminal device in a future-evolved public land mobile communication network (PLMN), etc., without specific limitation.

[0092] In some possible implementations, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); can be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0093] In some possible implementations, the terminal device may include a device with wireless communication functionality, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip and may also include other discrete devices.

[0094] In some possible implementations, the terminal device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0095] 2. Network Equipment

[0096] A network device may be a device with transceiver functions and may be used to communicate with a terminal device.

[0097] In some possible implementations, the network device may be responsible for radio resource management (RRM), quality of service (QoS) management, data compression and encryption, data transmission and reception, etc. on the air interface side.

[0098] In some possible implementations, the network device may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) for providing wireless communication functions, that is, the network device may include a device in the RAN.

[0099] For example, the devices in the RAN may include an evolved node B (eNB or eNodeB) in an LTE communication system, a next generation evolved node B (ng-eNB) in an NR communication system, a next generation node B (gNB) in an NR communication system, a master node (MN) in a dual-connection architecture, a second node or secondary node (SN) in a dual-connection architecture, etc., without specific limitation.

[0100] In some possible implementations, the network device may include a device in a core network (CN).

[0101] For example, the equipment in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0102] In some possible implementations, the network device may also be an access point (AP) in a WLAN, a relay station, a communication device in a future evolved PLMN network, a communication device in an NTN network, and the like.

[0103] In some possible implementations, the network device may include a device that provides wireless communication functionality for the terminal device, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip, or may include other discrete devices.

[0104] In some possible implementations, the network device may communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.

[0105] In some possible implementations, the network device may include a single independent node to implement the aforementioned base station functionality, or may include two or more independent nodes to implement the aforementioned base station functionality. For example, the network device may include a centralized unit (CU) and a distributed unit (DU), such as a gNB-CU and gNB-DU. Furthermore, in other embodiments of the present application, the network device may also include an active antenna unit (AAU). The CU implements a portion of the network device's functionality, while the DU implements another portion of the network device's functionality. For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU may implement some physical layer processing functions, RF processing, and related functions of the active antenna. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this network deployment, high-layer signaling (such as RRC signaling) can be considered to be generated by the CU and sent by the DU, or sent jointly by the DU and AAU. It is understood that network devices may include at least one of the CU, DU, and AAU. Furthermore, the CU may be classified as a RAN device, or as a core network device, without specific limitation.

[0106] In some possible implementations, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site coherent collaborative transmission can be multiple sites jointly coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site coherent collaborative transmission can be remote radio heads (RRHs), transmission and reception points (TRPs), network devices, etc., and there is no specific limitation on this.

[0107] In some possible implementations, the network device may be any one of the multiple sites that perform incoherent collaborative transmission with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site incoherent collaborative transmission can be a joint incoherent transmission of multiple sites, or different data belonging to the same PDSCH is sent from different sites to the terminal device, or different data belonging to the same PDSCH is sent from different sites to the terminal device. Names with the same meaning specified in other standards also apply to this application, that is, this application does not limit the names of these parameters. The sites in multi-site incoherent collaborative transmission can be RRHs, TRPs, network devices, etc., and there is no specific limitation on this.

[0108] In some possible implementations, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the network device may be a base station located on land, water, or the like.

[0109] In some possible implementations, a network device may provide services for a cell, and a terminal device in the cell may communicate with the network device using transmission resources (e.g., spectrum resources). The cell may be a macrocell, a small cell, a metro cell, a microcell, a picocell, or a femtocell, among others.

[0110] In some possible implementations, the network device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0111] To facilitate understanding of the embodiments of the present application, the relevant names or terms involved in the present application are explained below.

[0112] 1. XR Business

[0113] XR services primarily include VR, AR, and MR, which utilize virtual-reality interaction technologies. During downlink transmission, the server's XR content generates data at a fixed frequency (e.g., 60Hz or 120Hz) and is transmitted by network equipment to the XR terminal device.

[0114] XR services are mainly video services, and the data of video services is in burst mode, that is, the data of the same service is generated periodically. For example, if the frame rate is 60FPS (frames per second), there are 60 frames of video data in 1 second, and a video frame is generated every 16.6ms (milliseconds). The data of a video frame is too large and will be divided into dozens of IP packets. Figure 2 As shown in the figure, for a network transmitting XR services, dozens of IP packets need to be transmitted every 16.6ms. The XR period is related to the frame rate. For example, if the frame rate is 60 FPS (frames per second), the XR period can be 16.6ms. If the frame rate is 30 FPS (frames per second), the XR period can be 33.3ms.

[0115] 2. Physical downlink shared channel (PDSCH) configured by SPS

[0116] The PDSCH configured by SPS can also be called SPS PDSCH. The PDSCH configured by SPS refers to the PDSCH semi-statically scheduled by downlink control information (DCI). DCI semi-statically scheduled PDSCH refers to scheduling multiple continuous PDSCHs by one DCI. After the terminal device receives the DCI for semi-statically scheduling PDSCH, it periodically monitors the PDSCH based on the scheduling information in the DCI until this continuous scheduling stops. During this period of continuous scheduling, the terminal device no longer needs to perform blind detection of DCI. Compared with dynamically scheduled PDSCH, semi-statically scheduled PDSCH reduces the number of blind detections of DCI and reduces the power consumption of the terminal device.

[0117] For example, the SPS resource configured by the network device has a period of 2 time units. Figure 3 As shown, within this time window, the SPS resource includes four PDSCH transmission opportunities, namely time unit n, time unit n+2, time unit n+4, and time unit n+6. The time-frequency resources for transmitting PDSCH can be called PDSCH transmission opportunities.

[0118] Due to factors such as non-integer periods, jitter, and widely varying data block sizes in XR services, network devices may not transmit PDSCHs at certain SPS-configured PDSCH transmission times. Therefore, for XR services, when downlink transmission is scheduled using SPS, how to save power consumption in terminal devices is a pressing technical issue.

[0119] In order to save power consumption of terminal devices, the present application provides a communication method and apparatus. The communication method and apparatus provided by the present application are further described below:

[0120] See also Figure 4 , Figure 4 This is a flowchart of a communication method provided in an embodiment of the present application, and the communication method includes step 401. Figure 4 The execution subject of the method shown can be a terminal device and a network device, or the subject can be a chip in the terminal device and a chip in the network device. Figure 4 The method shown may also be performed by other types of products, and those skilled in the art may further expand upon the content disclosed in the specification. Figure 4 The method execution subjects shown are terminal devices and network devices as examples.

[0121] 401. A network device sends a first DCI to a terminal device, where the first DCI indicates usage of a PDSCH transmission opportunity configured by an SPS. Accordingly, the terminal device may receive the first DCI.

[0122] Optionally, after receiving the first DCI, the terminal device may determine the usage of the PDSCH transmission opportunities configured by the SPS based on the first DCI. Thus, the terminal device may not monitor the PDSCH during unused PDSCH transmission opportunities configured by the SPS, thereby saving power consumption of the terminal device.

[0123] Several possible specific implementations of using the PDSCH transmission opportunity of the SPS configuration indicated by the first DCI are introduced below:

[0124] 1. The first DCI indicates usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a first time window, where N is an integer greater than or equal to 1.

[0125] That is, the first DCI may indicate usage of one or more sets of PDSCH transmission opportunities with activated SPS configuration within the first time window.

[0126] Optionally, the transmission end time of the first DCI is the starting time of the first time window. The transmission end time of the first DCI can be based on the symbol as the granularity, and the first time window can be based on the next symbol of the symbol where the transmission end time of the first DCI is located as the starting time. Alternatively, the transmission end time of the first DCI can be based on the time slot as the granularity, and the first time window can be based on the next time slot of the time slot where the transmission end time of the first DCI is located as the starting time. Alternatively, the transmission end time of the first DCI can be based on other time units as the granularity, which is not limited in the embodiments of the present application.

[0127] Optionally, the end time of the first time window may be the start time of the next XR cycle, or the end time of the current XR cycle.

[0128] Optionally, the length of the first time window may be one XR period, or the length of the first time window may be one or more SPS configuration periods.

[0129] Optionally, the first DCI may indicate the length of the first time window. Alternatively, the length of the first time window may be pre-specified by a protocol.

[0130] In a possible embodiment, if there is a set of activated SPS configurations within the first time window, the first DCI indicates usage of the PDSCH transmission opportunities of the set of activated SPS configurations within the first time window.

[0131] In a possible embodiment, if there are multiple sets of activated SPS configurations within the first time window, the first DCI may indicate usage of PDSCH transmission opportunities of the multiple sets of activated SPS configurations within the first time window.

[0132] For example, if Figure 5 As shown, assuming that there are three activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The first DCI can indicate the usage of the PDSCH transmission opportunity of SPS configuration #0 in the first time window, the usage of the PDSCH transmission opportunity of SPS configuration #1, and the usage of the PDSCH transmission opportunity of SPS configuration #2.

[0133] In a possible embodiment, if there are multiple sets of activated SPS configurations within the first time window, different DCIs may be used to indicate the usage of PDSCH transmission opportunities of different activated SPS configurations, and one DCI indicates the usage of the PDSCH transmission opportunity of one activated SPS configuration. That is, if there are multiple sets of activated SPS configurations within the first time window, the first DCI indicates the usage of the PDSCH transmission opportunity of one activated SPS configuration within the first time window.

[0134] For example, if Figure 6 As shown in FIG, assuming that there are three activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The first DCI may indicate the usage of the PDSCH transmission opportunity of SPS configuration #0 in the first time window, the second DCI may indicate the usage of the PDSCH transmission opportunity of SPS configuration #1 in the first time window, and the third DCI may indicate the usage of the PDSCH transmission opportunity of SPS configuration #2 in the first time window.

[0135] In a possible embodiment, the first DCI is carried in the PDCCH or the PDSCH.

[0136] The following describes three possible ways of using the first DCI to indicate the use of N sets of PDSCH transmission opportunities with activated SPS configurations within the first time window:

[0137] Mode 1: N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations; when the value of the first bit is a first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is a second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window; the first bit is any one in the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0138] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0139] Optionally, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0140] That is to say, the first DCI can be divided into two bit fields for segmented indication. Among them, the first bit field is used to indicate, for each set of N sets of activated SPS configurations, that the activated SPS configuration has an unused PDSCH transmission opportunity within the first time window. The second bit field is used to indicate the usage of the PDSCH transmission opportunity within the first time window for the activated SPS configuration that has an unused PDSCH transmission opportunity within the first time window. The terminal device can first parse the first bit field, determine the number of bits in the second bit field based on the content of the first bit field, and further continue to parse the second bit field.

[0141] For example, if Figure 5 As shown, it is assumed that there are three activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The first DCI includes a first bit field and a second bit field.

[0142] The first bit field includes 3 bits, the first bit corresponds to SPS configuration #0, the second bit corresponds to SPS configuration #1, and the third bit corresponds to SPS configuration #2. If the value of the bit in the first bit field is 1, it indicates that there are unused PDSCH transmission opportunities within the first time window for the activated SPS configuration. If the value of the bit in the first bit field is 0, it indicates that there are no unused PDSCH transmission opportunities within the first time window for the activated SPS configuration. In this case, the value of the first bit field is 110.

[0143] SPS configuration #0 has 3 PDSCH transmission opportunities in the first time window, and SPS configuration #1 has 3 PDSCH transmission opportunities in the first time window, so the second bit field has 6 bits. One bit in the second bit field corresponds to one PDSCH transmission opportunity of SPS configuration #0 or SPS configuration #1 in the first time window. For example, the first three bits of the second bit field correspond to the 3 PDSCH transmission opportunities of SPS configuration #0 in the first time window, and the last three bits of the second bit field correspond to the 3 PDSCH transmission opportunities of SPS configuration #1 in the first time window. Assume that when the value of the bit in the second bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the second bit field is 0, it indicates that the PDSCH transmission opportunity is used. The value of the second bit field is 110010. Therefore, the first bit field + the second bit field included in the first DCI are 110+110010.

[0144] In the above example, when the value of the bit in the first bit field is 1, it indicates that there is an unused PDSCH transmission opportunity within the first time window when the SPS configuration is activated, and when the value of the bit in the first bit field is 0, it indicates that there is no unused PDSCH transmission opportunity within the first time window when the SPS configuration is activated. The opposite is also possible, and the embodiments of the present application are not limited thereto.

[0145] In the above example, when the value of the bit in the second bit field is 1, it indicates that the PDSCH transmission opportunity is not used, and when the value of the bit in the second bit field is 0, it indicates that the PDSCH transmission opportunity is used. The opposite may also be true, and the embodiment of the present application is not limited thereto.

[0146] In a possible embodiment, the N bits in the first bit field may correspond one-to-one with N sets of activated SPS configurations in ascending order of the sequence numbers of the SPS configurations. For example, the first bit in the first bit field may correspond to SPS configuration #0, the second bit in the first bit field may correspond to SPS configuration #1, and the third bit in the first bit field may correspond to SPS configuration #2. Alternatively, the N bits in the first bit field may correspond one-to-one with N sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations, which is not limited in this embodiment of the present application.

[0147] In a possible embodiment, the preset order may be that the second bit field may indicate the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in ascending order according to the sequence number of the SPS configuration. Figure 5In the scenario shown, the second bit field may first indicate the usage of the PDSCH transmission opportunity of SPS configuration #0 in the first time window, and then indicate the usage of the PDSCH transmission opportunity of SPS configuration #1 in the first time window. Alternatively, the preset order may be that the second bit field may indicate the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in descending order according to the sequence number of the SPS configuration, which is not limited in the embodiment of the present application.

[0148] Indicating the usage of the N sets of PDSCH transmission opportunities of the activated SPS configurations within the first time window based on mode 1 is beneficial to saving indication bits.

[0149] Method 2: N is an integer greater than or equal to 1, and the first DCI includes a fifth bit field, in which one bit corresponds to a PDSCH transmission opportunity in a set of activated SPS configurations within the first time window; the fifth bit field indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations in the first time window in sequence according to a preset order.

[0150] That is to say, the first DCI only needs to be indicated using one bit field.

[0151] For example, assume there are three SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. Figure 7 As shown, in the first time window, SPS configuration #0 is the activated SPS configuration. The first DCI indicates the usage of the PDSCH transmission opportunity of SPS configuration #0 in the first time window.

[0152] SPS configuration #0 has three PDSCH transmission opportunities in the first time window, so the fifth bit field includes three bits. One bit in the fifth bit field corresponds to one PDSCH transmission opportunity for SPS configuration #0 in the first time window. For example, the three bits in the fifth bit field correspond to the three PDSCH transmission opportunities for SPS configuration #0 in the first time window. Assume that when the value of the bit in the fifth bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the fifth bit field is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the fifth bit field is 110.

[0153] For example, Figure 5As shown, assume there are three activated SPS configurations: SPS configuration #0, SPS configuration #1, and SPS configuration #2. SPS configuration #0 has three PDSCH transmission opportunities within the first time window, SPS configuration #1 has three PDSCH transmission opportunities within the first time window, and SPS configuration #2 has three PDSCH transmission opportunities within the first time window. Therefore, the fifth bit field has nine bits. Each bit in the fifth bit field corresponds to a PDSCH transmission opportunity within the first time window for SPS configuration #0, SPS configuration #1, or SPS configuration #2. For example, the first through third bits of the fifth bit field correspond, respectively, to the three PDSCH transmission opportunities within the first time window for SPS configuration #0, SPS configuration #1, or SPS configuration #2. The fourth through sixth bits of the fifth bit field correspond, respectively, to the three PDSCH transmission opportunities within the first time window for SPS configuration #1, and the seventh through ninth bits of the fifth bit field correspond, respectively, to the three PDSCH transmission opportunities within the first time window for SPS configuration #2. Assuming that the value of a bit in the fifth bit field is 1, it indicates that the PDSCH transmission opportunity is unused. When the value of the bit in the fifth bit field is 0, it indicates that the PDSCH transmission opportunity is used. The value of the fifth bit field is 110010000.

[0154] In the above example, when the value of the bit in the fifth bit field is 1, it indicates that the PDSCH transmission opportunity is not used, and when the value of the bit in the fifth bit field is 0, it indicates that the PDSCH transmission opportunity is used. The opposite may also be true, and the embodiment of the present application is not limited thereto.

[0155] In a possible embodiment, the preset order may be that the fifth bit field indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations in the first time window in descending order according to the sequence number of the SPS configuration. Alternatively, the preset order may be that the fifth bit field may indicate the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations in the first time window in descending order according to the sequence number of the SPS configuration, which is not limited in the embodiment of the present application.

[0156] Based on the method 2, the usage of the N sets of PDSCH transmission opportunities with activated SPS configurations within the first time window can be accurately indicated.

[0157] Mode 3: N is an integer greater than 1; the first DCI includes a sixth bit field and a seventh bit field; the sixth bit field has a first part of bits and a second part of bits. The first part of bits includes M bits, and the M bits in the first part of bits correspond one-to-one to the M PDSCH transmission opportunities within the first time window of the activation SPS configuration where the first DCI is located. The first part of bits is used to indicate the usage of the M PDSCH transmission opportunities within the first time window of the activation SPS configuration where the first DCI is located. The second part of bits has the following two cases: Case 1, the second part of bits includes N-1 bits, and the N-1 bits in the second part of bits correspond one-to-one to N-1 sets of activation SPS configurations, and the N-1 activation SPS configurations are the activation SPS configurations remaining after removing the activation SPS configuration where the first DCI is located from the N sets of activation SPS configurations; Case 2, the second part of bits includes N bits, and the N bits in the second part of bits correspond one-to-one to N sets of activation SPS configurations.

[0158] When the value of the third bit is the first value, the third bit indicates that the third activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the third bit is the second value, the third bit indicates that the third activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window; the third bit is any one of the bits in the second part, and the third activated SPS configuration is the activated SPS configuration corresponding to the third bit;

[0159] In response to the presence of a bit having the first value in the second portion of bits, the seventh bit field sequentially indicates, in a preset order, the usage of the PDSCH transmission opportunities of the Q sets of activated SPS configurations within the first time window; the value of the bit corresponding to each set of activated SPS configurations in the Q sets of activated SPS configurations in the second portion of bits is the first value; when the second portion of bits includes N-1 bits, Q is an integer greater than or equal to 1, and Q is less than or equal to N-1. When the second portion of bits includes N bits, Q is an integer greater than or equal to 1, and Q is less than or equal to N. In response to the value of each bit in the second portion of bits being the second value, the seventh bit field is empty.

[0160] For example, the first DCI is carried in the PDSCH.

[0161] For example, if Figure 5 As shown, it is assumed that there are three activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The first DCI includes a sixth bit field and a seventh bit field.

[0162] If the first DCI is carried on the PDSCH of SPS configuration #0, then the first portion of bits in the sixth bit field has three bits, corresponding to the three PDSCH transmission opportunities in the first time window of SPS configuration #0. If the value of the bits in the first portion of bits is 1, it indicates that the PDSCH transmission opportunity is not used. If the value of the bits in the first portion of bits is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the first portion of bits in the sixth bit field is 110.

[0163] Take the example where the second part of the bits in the sixth bit field has 3 bits. The first bit in the second part of the bits corresponds to SPS configuration #0, the second bit in the second part of the bits corresponds to SPS configuration #1, and the third bit in the second part of the bits corresponds to SPS configuration #2. Since there are unused PDSCH transmission opportunities for SPS configuration #0 and SPS configuration #1 within the first time window, there are no unused PDSCH transmission opportunities for SPS configuration #2 within the first time window. Assuming that the value of the bit in the second part of the bits is 1, it indicates that there are unused PDSCHs within the first time window when the SPS configuration is activated. When the value of the bit in the second part of the bits is 0, it indicates that there are no unused PDSCHs within the first time window when the SPS configuration is activated. The value of the second part of the bits in the sixth bit field is 110.

[0164] The seventh bit field has 6 bits, which correspond to the 3 PDSCH transmission opportunities in the first time window of SPS configuration #0 and the 3 PDSCH transmission opportunities in the first time window of SPS configuration #1. Assuming that the value of the bit in the seventh bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the seventh bit field is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the seventh bit field is 110010. Therefore, the sixth bit field and the seventh bit field included in the first DCI are 110|110+110010. Similarly, if the first DCI is carried on the PDSCH of SPS configuration #1. The sixth bit field and the seventh bit field included in the first DCI are 010|110+110010.

[0165] Take the example where the second part of the bits in the sixth bit field has 2 bits. The first bit in the second part of the bits corresponds to SPS configuration #1, and the second bit in the second part of the bits corresponds to SPS configuration #2. Since there are unused PDSCH transmission opportunities for SPS configuration #1 within the first time window, there are no unused PDSCH transmission opportunities for SPS configuration #2 within the first time window. Assuming that the value of the bit in the second part of the bits is 1, it indicates that there are unused PDSCHs within the first time window when the SPS configuration is activated. When the value of the bit in the second part of the bits is 0, it indicates that there are no unused PDSCHs within the first time window when the SPS configuration is activated. The value of the second part of the bits in the sixth bit field is 10.

[0166] The seventh bit field has 3 bits, which correspond to the 3 PDSCH transmission opportunities in the first time window of SPS configuration #1. Assuming that the value of the bit in the seventh bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the seventh bit field is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the seventh bit field is 010. Therefore, the sixth bit field and the seventh bit field included in the first DCI are 110|10+010. Similarly, if the first DCI is carried on the PDSCH of SPS configuration #1. The sixth bit field and the seventh bit field included in the first DCI are 010|10+110.

[0167] In the above example, when the value of the bit in the first part of bits (or the seventh bit field) is 1, it indicates that the PDSCH transmission opportunity is not used, and when the value of the bit in the first part of bits (or the seventh bit field) is 0, it indicates that the PDSCH transmission opportunity is used. The opposite is also possible, and the embodiment of the present application is not limited thereto.

[0168] In the above example, when the value of the bit in the second part of bits is 1, it indicates that there is an unused PDSCH transmission opportunity within the first time window for activating the SPS configuration, and when the value of the bit in the second part of bits is 0, it indicates that there is no unused PDSCH transmission opportunity within the first time window for activating the SPS configuration. The opposite is also possible, and the embodiments of the present application are not limited thereto.

[0169] In a possible embodiment, if the second portion of bits has N-1 bits, the N-1 bits in the second portion of bits may correspond one-to-one with the N-1 sets of activated SPS configurations in ascending order of the sequence numbers of the SPS configurations. Alternatively, the N-1 bits in the second portion of bits may correspond one-to-one with the N-1 sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations.

[0170] In a possible embodiment, if the second portion of bits has N bits, the N bits in the second portion of bits may correspond one-to-one with the N sets of activated SPS configurations in ascending order of the sequence numbers of the SPS configurations. Alternatively, the N bits in the second portion of bits may correspond one-to-one with the N sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations.

[0171] In a possible embodiment, the preset order may be that the seventh bit field may indicate the usage of the PDSCH transmission opportunities of the Q sets of activated SPS configurations in the first time window in descending order according to the sequence number of the SPS configuration. Alternatively, the preset order may be that the seventh bit field may indicate the usage of the PDSCH transmission opportunities of the Q sets of activated SPS configurations in the first time window in descending order according to the sequence number of the SPS configuration.

[0172] Based on mode 3, there is no need to send DCI on each activated SPS configuration to indicate the usage of the PDSCH transmission opportunity of the activated SPS configuration, which is conducive to saving signaling overhead.

[0173] 2. Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where one bit in the number of indication bits corresponds to one PDSCH transmission opportunity, and N is an integer greater than or equal to 1.

[0174] In one possible embodiment, the network device may send configuration information to the terminal device, which is used to configure the number of indication bits corresponding to each set of SPS configurations. Alternatively, the number of indication bits corresponding to each set of SPS configurations may be pre-specified by the protocol, which is not limited in the embodiments of the present application. The number of indication bits corresponding to the SPS configuration represents the number of PDSCH transmission opportunities for which the SPS configuration needs to indicate usage.

[0175] Optionally, the number of indication bits corresponding to each SPS configuration is the same. For example, assume there are three activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The number of indication bits corresponding to SPS configurations #0 to SPS configuration #2 is the same, all 3. The first DCI indicates the usage of the three PDSCH transmission opportunities of SPS configuration #0, the usage of the three PDSCH transmission opportunities of SPS configuration #1, and the usage of the three PDSCH transmission opportunities of SPS configuration #2.

[0176] Optionally, the number of indication bits corresponding to different SPS configurations may also be different. For example, assume that there are three activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The number of indication bits corresponding to SPS configuration #0 is 2, the number of indication bits corresponding to SPS configuration #1 is 2, and the number of indication bits corresponding to SPS configuration #2 is 3. The first DCI indicates the usage of the two PDSCH transmission opportunities of SPS configuration #0, the usage of the two PDSCH transmission opportunities of SPS configuration #1, and the usage of the three PDSCH transmission opportunities of SPS configuration #2.

[0177] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including: based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations from the end moment of transmission of the first DCI.

[0178] For example, Figure 8 As shown in the figure, it is assumed that there are three activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The number of indication bits corresponding to SPS configurations #0 to SPS configuration #2 is the same, all 2. The first DCI indicates the usage of PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 for SPS configuration #0, and indicates the usage of PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 for SPS configuration #1, and the usage of PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 for SPS configuration #2.

[0179] Optionally, the transmission end time of the first DCI may be based on a symbol as the granularity, and the first DCI indicates the usage of N sets of PDSCH transmission opportunities configured with activated SPS starting from the next symbol of the symbol where the transmission end time of the first DCI is located. Alternatively, the transmission end time of the first DCI may be based on a time slot as the granularity, and the first DCI indicates the usage of N sets of PDSCH transmission opportunities configured with activated SPS starting from the next time slot of the symbol where the transmission end time of the first DCI is located. Alternatively, the transmission end time of the first DCI may be based on other time units as the granularity, which is not limited in the embodiments of the present application.

[0180] In a possible embodiment, if there is a set of activated SPS configurations, then based on the number of indication bits corresponding to the set of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the set of activated SPS configurations.

[0181] In a possible embodiment, if there are multiple sets of activated SPS configurations within the first time window, based on the number of indication bits corresponding to each SPS configuration in the multiple sets of activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the multiple sets of activated SPS configurations.

[0182] For example, if Figure 8 As shown, assuming there are three activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. Based on the number of indication bits corresponding to each of the three activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the three activated SPS configurations.

[0183] In one possible embodiment, if there are multiple sets of activated SPS configurations, different DCIs may be used to indicate the usage of PDSCH transmission opportunities for different activated SPS configurations, with one DCI indicating the usage of the PDSCH transmission opportunity for one activated SPS configuration. That is, if there are multiple sets of activated SPS configurations, then based on the number of indication bits of one activated SPS configuration, the first DCI indicates the usage of the PDSCH transmission opportunity for the activated SPS configuration.

[0184] For example, if Figure 9 As shown, it is assumed that there are three activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. Based on the number of indication bits corresponding to SPS configuration #0, the first DCI indicates the usage of the PDSCH transmission opportunity of SPS configuration #0. Based on the number of indication bits corresponding to SPS configuration #1, the second DCI indicates the usage of the PDSCH transmission opportunity of SPS configuration #1. Based on the number of indication bits corresponding to SPS configuration #2, the third DCI indicates the usage of the PDSCH transmission opportunity of SPS configuration #2.

[0185] In a possible embodiment, the first DCI is carried in the PDCCH or the PDSCH.

[0186] The following describes three possible ways in which the first DCI indicates usage of the PDSCH transmission opportunities of the N activated SPS configurations based on the number of indication bits corresponding to each of the N activated SPS configurations:

[0187] Mode 1: N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to one set of activated SPS configurations in N sets of activated SPS configurations; when the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activated SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activated SPS configuration, the second bit is any one in the third bit field, the second activated SPS configuration is the activated SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activated SPS configuration;

[0188] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission timing of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0189] Optionally, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0190] That is to say, the first DCI can be divided into two bit fields for segmented indication. Among them, the third bit field is used to indicate, for each set of N sets of activated SPS configurations, the situation where there are unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities indicated by the activated SPS configuration. The fourth bit field is used to indicate the usage of the number of PDSCH transmission opportunities indicated by the activated SPS configuration for the number of PDSCH transmission opportunities indicated by the activated SPS configuration. The terminal device can first parse the third bit field, determine the number of bits of the fourth bit field based on the content of the third bit field, and further continue to parse the fourth bit field.

[0191] For example, if Figure 8As shown, it is assumed that there are 3 activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The first DCI includes the third bit field + the fourth bit field. The number of indication bits corresponding to SPS configuration #0 to SPS configuration #2 is 2. Based on the number of indication bits corresponding to each SPS configuration in SPS configuration #0 to SPS configuration #2, the first DCI indicates the usage of the PDSCH transmission opportunities of SPS configuration #0 to SPS configuration #2 from the end moment of transmission of the first DCI. Therefore, the first DCI indicates the usage of PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, as well as the usage of PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1, and the usage of PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #2.

[0192] The third bit field includes 3 bits, the first bit corresponds to SPS configuration #0, the second bit corresponds to SPS configuration #1, and the third bit corresponds to SPS configuration #2. Assuming that the value of the bit in the third bit field is 1, it indicates that there are unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities indicated by the activated SPS configuration bits. When the value of the bit in the first bit field is 0, it indicates that there are no unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities indicated by the activated SPS configuration bits. Since there are unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, there are unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1, and there are no unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #2, the value of the third bit field is 110.

[0193] The fourth bit field has 4 bits. One bit in the fourth bit field corresponds to a PDSCH transmission opportunity of SPS configuration #0 or SPS configuration #1. For example, the first two bits of the fourth bit field correspond to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, and the last two bits of the fourth bit field correspond to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1. Assuming that the value of the bit in the fourth bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the fourth bit field is 0, it indicates that the PDSCH transmission opportunity is used. The value of the fourth bit field is 1010. Therefore, the third bit field + the fourth bit field included in the first DCI is 110+1010.

[0194] In the above example, when the value of the bit in the third bit field is 1, it indicates that there are unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bit for activating the SPS configuration, and when the value of the bit in the third bit field is 0, it indicates that there are no unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bit for activating the SPS configuration. The opposite is also possible, and the embodiments of the present application are not limited thereto.

[0195] In the above example, when the bit value in the fourth bit field is 1, it indicates that the PDSCH transmission opportunity is not used, and when the bit value in the fourth bit field is 0, it indicates that the PDSCH transmission opportunity is used. The opposite may also be true, and the embodiment of the present application is not limited thereto.

[0196] In a possible embodiment, the N bits in the third bit field may correspond one-to-one with the N sets of activated SPS configurations in ascending order of the sequence numbers of the SPS configurations. Alternatively, the N bits in the third bit field may correspond one-to-one with the N sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations.

[0197] In a possible embodiment, the preset order may be that the fourth bit field may indicate the usage of the PDSCH transmission opportunity of the SPS configuration activated by the P set in ascending order according to the sequence number of the SPS configuration. Alternatively, the preset order may be that the fourth bit field may indicate the usage of the PDSCH transmission opportunity of the SPS configuration activated by the P set in descending order according to the sequence number of the SPS configuration.

[0198] Indicating the usage of N sets of PDSCH transmission opportunities with activated SPS configurations based on mode 1 is beneficial for saving indication bits.

[0199] Method 2: N is an integer greater than or equal to 1, and the first DCI includes an eighth bit field, in which one bit corresponds to a PDSCH transmission opportunity of a set of activated SPS configurations; based on the number of indication bits corresponding to each activated SPS configuration in N sets of activated SPS configurations, the eighth bit field indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations in a preset order.

[0200] That is to say, the first DCI only needs to be indicated using one bit field.

[0201] For example, assume there are three SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. Figure 10 As shown, SPS configuration #0 is an activated SPS configuration. Based on the number of indication bits corresponding to SPS configuration #0, the first DCI indicates the usage of the PDSCH transmission opportunity of SPS configuration #0.

[0202] The number of indication bits corresponding to SPS configuration #0 is 2, and the eighth bit field includes 2 bits. One bit in the eighth bit field corresponds to a PDSCH transmission opportunity of SPS configuration #0. For example, the two bits of the eighth bit field correspond to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, respectively. Assume that when the value of the bit in the eighth bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the eighth bit field is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the eighth bit field is 10.

[0203] For example, Figure 8 As shown, it is assumed that there are 3 activated SPS configurations, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The number of indication bits corresponding to SPS configuration #0 to SPS configuration #2 is 2. Based on the number of indication bits corresponding to each SPS configuration in SPS configuration #0 to SPS configuration #2, the first DCI indicates the usage of the PDSCH transmission timing of SPS configuration #0 to SPS configuration #2 from the end moment of transmission of the first DCI. Therefore, the first DCI indicates the usage of PDSCH transmission timing 1 and PDSCH transmission timing 2 of SPS configuration #0, as well as the usage of PDSCH transmission timing 1 and PDSCH transmission timing 2 of SPS configuration #1, and the usage of PDSCH transmission timing 1 and PDSCH transmission timing 2 of SPS configuration #2.

[0204] The eighth bit field has 6 bits. One bit in the eighth bit field corresponds to a PDSCH transmission opportunity of SPS configuration #0 or SPS configuration #1 or SPS configuration #2. For example, the first to second bits of the eighth bit field correspond to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, respectively, the third to fourth bits of the eighth bit field correspond to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1, respectively, and the fifth to sixth bits of the eighth bit field correspond to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #2, respectively. Assuming that the value of the bit in the eighth bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the eighth bit field is 0, it indicates that the PDSCH transmission opportunity is used. The value of the eighth bit field is 101000.

[0205] In the above example, when the value of the bit in the eighth bit field is 1, it indicates that the PDSCH transmission opportunity is not used, and when the value of the bit in the eighth bit field is 0, it indicates that the PDSCH transmission opportunity is used. The opposite may also be true, and the embodiment of the present application is not limited thereto.

[0206] In a possible embodiment, the preset order may be that the eighth bit field may indicate the usage of N sets of PDSCH transmission opportunities for activating SPS configurations in descending order according to the sequence number of the SPS configuration. Alternatively, the preset order may be that the eighth bit field may indicate the usage of N sets of PDSCH transmission opportunities for activating SPS configurations in descending order according to the sequence number of the SPS configuration, which is not limited in the embodiment of the present application.

[0207] Based on the method 2, the usage of N sets of PDSCH transmission opportunities with activated SPS configurations can be accurately indicated.

[0208] Mode 3: N is an integer greater than 1; the first DCI includes a ninth bit field and a tenth bit field; the ninth bit field has a first part of bits and a second part of bits. The first part of bits includes W bits, where W is the number of indication bits corresponding to the activated SPS configuration where the first DCI is located. The W bits in the first part of bits correspond one-to-one to the W PDSCH transmission opportunities of the activated SPS configuration where the first DCI is located, and the first part of bits is used to indicate the usage of the W PDSCH transmission opportunities of the activated SPS configuration where the first DCI is located. The second part of bits has the following two cases: Case 1, the second part of bits includes N-1 bits, and the N-1 bits in the second part of bits correspond one-to-one to N-1 sets of activated SPS configurations, and the N-1 activated SPS configurations are the activated SPS configurations remaining in the N sets of activated SPS configurations after removing the activated SPS configuration where the first DCI is located; Case 2, the second part of bits includes N bits, and the N bits in the second part of bits correspond one-to-one to N sets of activated SPS configurations.

[0209] When the value of the fourth bit is the first value, the fourth bit indicates that there are unused PDSCH transmission opportunities in the fourth indication bit number PDSCH transmission opportunities of the fourth activation SPS configuration; and / or, when the value of the fourth bit is the second value, the fourth bit indicates that there are no unused PDSCH transmission opportunities in the fourth indication bit number PDSCH transmission opportunities of the fourth activation SPS configuration, and the fourth bit is any one of the bits in the second part; the fourth activation SPS configuration is the activation SPS configuration corresponding to the fourth bit, and the fourth indication bit number is the indication bit number corresponding to the fourth activation SPS configuration;

[0210] In response to the presence of a bit having the first value in the second portion of bits, the tenth bit field sequentially indicates, in a preset order, the usage of the PDSCH transmission opportunities of the E sets of activated SPS configurations; the value of the bit corresponding to each set of activated SPS configurations in the E sets of activated SPS configurations in the second portion of bits is the first value; when the second portion of bits includes N-1 bits, E is an integer greater than or equal to 1, and E is less than or equal to N-1. When the second portion of bits includes N bits, E is an integer greater than or equal to 1, and E is less than or equal to N. In response to the value of each bit in the second portion of bits being the second value, the tenth bit field is empty.

[0211] Optionally, the first DCI is carried in the PDSCH.

[0212] For example, if Figure 8 As shown, it is assumed that there are 3 activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. The first DCI includes the ninth bit field + the tenth bit field. The number of indication bits corresponding to SPS configuration #0 to SPS configuration #2 is 2. Based on the number of indication bits corresponding to each SPS configuration in SPS configuration #0 to SPS configuration #2, the first DCI indicates the usage of the PDSCH transmission timing of SPS configuration #0 to SPS configuration #2 from the end moment of transmission of the first DCI. Therefore, the first DCI indicates the usage of PDSCH transmission timing 1 and PDSCH transmission timing 2 of SPS configuration #0, as well as the usage of PDSCH transmission timing 1 and PDSCH transmission timing 2 of SPS configuration #1, and the usage of PDSCH transmission timing 1 and PDSCH transmission timing 2 of SPS configuration #2.

[0213] If the first DCI is carried on the PDSCH of SPS configuration #0, then the first portion of bits in the ninth bit field has two bits, corresponding to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, respectively. Assume that the value of the bit in the first portion of bits is 1, indicating that the PDSCH transmission opportunity is not used. If the value of the bit in the first portion of bits is 0, indicating that the PDSCH transmission opportunity is used, then the value of the first portion of bits in the ninth bit field is 10.

[0214] Take the second part of the bits in the ninth bit field having 3 bits as an example. The first bit in the second part of the bits corresponds to SPS configuration #0, the second bit in the second part of the bits corresponds to SPS configuration #1, and the third bit in the second part of the bits corresponds to SPS configuration #2. Assume that when the value of the bit in the second part of the bits is 1, it indicates that there are unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bits for activating the SPS configuration. When the value of the bit in the second part of the bits is 0, it indicates that there are no unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bits for activating the SPS configuration. Since there are unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0, there are unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1, and there are no unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #2, the value of the second part of the bits in the ninth bit field is 110.

[0215] The tenth bit field has 4 bits, corresponding to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #0 and PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1. Assuming that the value of the bit in the tenth bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the tenth bit field is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the tenth bit field is 10. Therefore, the ninth bit field and the tenth bit field included in the first DCI are 10|110+1010. Similarly, if the first DCI is carried on the PDSCH of SPS configuration #1. The ninth bit field and the tenth bit field included in the first DCI are 10|110+1010.

[0216] Take the case where the second part of the bits in the ninth bit field has 2 bits as an example. The first bit in the second part of the bits corresponds to SPS configuration #1, and the second bit in the second part of the bits corresponds to SPS configuration #2. Assume that when the value of the bit in the second part of the bits is 1, it indicates that there are unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bits for activating the SPS configuration. When the value of the bit in the second part of the bits is 0, it indicates that there are no unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bits for activating the SPS configuration. Since there are unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1, and there are no unused PDSCH transmission opportunities in PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #2, the value of the second part of the bits in the ninth bit field is 10.

[0217] The tenth bit field has 2 bits, corresponding to PDSCH transmission opportunity 1 and PDSCH transmission opportunity 2 of SPS configuration #1, respectively. Assuming that the value of the bit in the tenth bit field is 1, it indicates that the PDSCH transmission opportunity is not used. When the value of the bit in the tenth bit field is 0, it indicates that the PDSCH transmission opportunity is used. Then the value of the tenth bit field is 10. Therefore, the ninth bit field and the tenth bit field included in the first DCI are 10|10+10. Similarly, if the first DCI is carried on the PDSCH of SPS configuration #1. The ninth bit field and the tenth bit field included in the first DCI are 10|10+10.

[0218] In the above example, when the value of the bit in the first part of bits (or the ninth bit field) is 1, it indicates that the PDSCH transmission opportunity is not used, and when the value of the bit in the first part of bits (or the ninth bit field) is 0, it indicates that the PDSCH transmission opportunity is used. The opposite is also possible, and the embodiment of the present application is not limited thereto.

[0219] In the above example, when the value of the bit in the second part of the bits is 1, it indicates that there are unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bits for activating the SPS configuration, and when the value of the bit in the second part of the bits is 0, it indicates that there are no unused PDSCH transmission opportunities in the number of PDSCH transmission opportunities of the indication bits for activating the SPS configuration. The opposite is also possible, and the embodiments of the present application are not limited thereto.

[0220] In a possible embodiment, the N-1 bits in the second portion of bits may correspond one-to-one with the N-1 sets of activated SPS configurations in ascending order of the sequence numbers of the SPS configurations. Alternatively, the N-1 bits in the second portion of bits may correspond one-to-one with the N-1 sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations.

[0221] In a possible embodiment, if the second portion of bits has N bits, the N bits in the second portion of bits may correspond one-to-one with the N sets of activated SPS configurations in ascending order of the sequence numbers of the SPS configurations. Alternatively, the N bits in the second portion of bits may correspond one-to-one with the N sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations.

[0222] In a possible embodiment, the preset order may be that the tenth bit field may indicate the usage of the PDSCH transmission opportunities of the E sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations. Alternatively, the preset order may be that the tenth bit field may indicate the usage of the PDSCH transmission opportunities of the E sets of activated SPS configurations in descending order of the sequence numbers of the SPS configurations.

[0223] Based on mode 3, there is no need to send DCI on each activated SPS configuration to indicate the usage of the PDSCH transmission opportunity of the activated SPS configuration, which is conducive to saving signaling overhead.

[0224] 3. The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are not used.

[0225] Based on this approach, it is beneficial to save the bit overhead of the first DCI.

[0226] Optionally, the starting moment of the second time window is the end moment of transmission of the first DCI. The end moment of transmission of the first DCI can be based on the granularity of symbols, and the second time window can be based on the next symbol of the symbol where the transmission of the first DCI ends as the starting moment. Alternatively, the end moment of transmission of the first DCI can be based on the granularity of time slots, and the second time window can be based on the next time slot of the time slot where the transmission of the first DCI ends as the starting moment. Alternatively, the end moment of transmission of the first DCI can be based on the granularity of other time units, which is not limited in the embodiments of the present application.

[0227] Optionally, the end time of the second time window may be the start time of the next XR cycle, or the end time of the current XR cycle.

[0228] Optionally, the first DCI may indicate the length of the second time window. Alternatively, the length of the second time window may be pre-specified by a protocol.

[0229] Optionally, the first DCI includes an eleventh field, the eleventh field includes 1 bit, and 1 bit corresponds to all activated SPS configurations. That is, the first DCI can indicate through one bit that all PDSCH transmission opportunities of all activated SPS configurations in the second time window are not used. When the value of the eleventh field is a first value, it indicates that all PDSCH transmission opportunities of all activated SPS configurations in the second time window are not used. When the value of the eleventh field is a second value, it indicates that all PDSCH transmission opportunities of not all activated SPS configurations in the second time window are not used.

[0230] For example, Figure 11 As shown, it is assumed that there are three activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. None of the PDSCH transmission opportunities of SPS configuration #0, SPS configuration #1, and SPS configuration #2 in the second time window are used. The value of the eleventh field is 1, indicating that all PDSCH transmission opportunities of all activated SPS configurations in the second time window are not used. Alternatively, the value of the eleventh field can be 0, indicating that all PDSCH transmission opportunities of all activated SPS configurations in the second time window are not used, which is not limited in the embodiment of the present application.

[0231] In another possible embodiment, the first DCI includes an eleventh field, the eleventh field includes N bits, each bit corresponding to an activated SPS configuration. When the value of the fifth bit is a first value, it is used to indicate that the activated SPS configuration corresponding to the fifth bit is not used in all PDSCH transmission opportunities within the second time window, and the fifth bit is any bit in the eleventh field; when the value of the fifth bit is a second value, it is used to indicate that the activated SPS configuration corresponding to the fifth bit is used in at least one PDSCH transmission opportunity among all PDSCH transmission opportunities within the second time window, and the fifth bit is any bit in the eleventh field.

[0232] For example, Figure 12 As shown, it is assumed that there are 3 activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. All PDSCH transmission opportunities of SPS configuration #0 and SPS configuration #1 in the second time window are not used. There is a PDSCH transmission opportunity used by SPS configuration #2 in the second time window. The eleventh field includes three bits, the first bit corresponds to SPS configuration #0, the second bit corresponds to SPS configuration #1, and the third bit corresponds to SPS configuration #2. Assuming that the value of the bit in the eleventh field is 1, it indicates that all PDSCH transmission opportunities of the activated SPS configuration in the second time window are not used. Assuming that the value of the bit in the eleventh field is 0, it indicates that there is at least one PDSCH transmission opportunity used among all PDSCH transmission opportunities of the activated SPS configuration in the second time window. Then the value of the eleventh field is 110.

[0233] 4. For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0234] Based on this approach, it is beneficial to save the bit overhead of the first DCI.

[0235] Optionally, the transmission end time of the first DCI may be based on a symbol as the granularity, and the first DCI indicates the number of consecutive unused PDSCH transmission opportunities for activating the SPS configuration starting from the next symbol of the symbol where the transmission end time of the first DCI is located. Alternatively, the transmission end time of the first DCI may be based on a time slot as the granularity, and the first DCI indicates the number of consecutive unused PDSCH transmission opportunities for activating the SPS configuration starting from the next time slot of the time slot where the transmission end time of the first DCI is located. Alternatively, the transmission end time of the first DCI may be based on other time units as the granularity, which is not limited in the embodiments of the present application.

[0236] For example, if Figure 13As shown, it is assumed that there are 3 activated SPS configurations in the first time window, namely SPS configuration #0, SPS configuration #1, and SPS configuration #2. SPS configuration #0 has 2 consecutive unused PDSCH transmission opportunities since the end of transmission of the first DCI. SPS configuration #1 has 2 consecutive unused PDSCH transmission opportunities since the end of transmission of the first DCI. SPS configuration #2 has 1 consecutive unused PDSCH transmission opportunity since the end of transmission of the first DCI. For example, the first DCI includes the twelfth field, the thirteenth field, and the fourteenth field. The value of the twelfth field is 010, and the first DCI indicates through the twelfth field that SPS configuration #0 has 2 consecutive unused PDSCH transmission opportunities since the end of transmission of the first DCI. The value of the thirteenth field is 010, and the first DCI indicates through the thirteenth field that SPS configuration #1 has 2 consecutive unused PDSCH transmission opportunities since the end of transmission of the first DCI. The value of the fourteenth field is 001, and the first DCI indicates through the fourteenth field that SPS configuration #2 has one consecutive unused PDSCH transmission opportunity from the transmission end time of the first DCI.

[0237] In a possible embodiment, each PDSCH transmission opportunity is preceded by a DCI indicating the usage of the PDSCH transmission opportunity configured by the SPS.

[0238] In a possible embodiment, the first DCI is an activation DCI.

[0239] The DCI validation rules still reuse the existing protocol, except that the DCI carries an additional bit field to indicate the use of the PDSCH transmission opportunity configured by the SPS. Alternatively, the DCI validation rules still reuse the existing protocol and reuse other existing bit fields to indicate the use of the PDSCH transmission opportunity configured by the SPS, such as the modulation and coding scheme (MCS) field or the frequency domain resource assignment (FDRA) field.

[0240] In a possible embodiment, the first DCI is a non-scheduled DCI.

[0241] In a possible embodiment, the first DCI is carried on the PDSCH.

[0242] It can be seen that based on Figure 4 The described method allows a terminal device to determine the usage of the PDSCH transmission opportunities configured by the SPS, and thus the terminal device may not monitor the PDSCH during unused PDSCH transmission opportunities configured by the SPS, thereby saving power consumption of the terminal device.

[0243] See Figure 14 , Figure 14 This is a schematic diagram of the structure of a communication device according to an embodiment of the present application. The communication device can be used to perform some or all of the functions of the terminal device in the above method embodiment. The device can be a terminal device, a device within a terminal device, or a device capable of being used in conjunction with a terminal device. The communication device can also be a chip system. Figure 14 The communication device shown includes a communication unit 1401 and a processing unit 1402. The communication unit 1401 is used to send and receive data. The communication unit 1401 integrates a receiving unit and a sending unit. The communication unit 1401 can also be called a transceiver unit. Alternatively, the communication unit 1401 can be split into a receiving unit and a sending unit. The processing unit 1402 is used to process the data.

[0244] The communication unit 1401 is configured to receive first downlink control information DCI sent by a network device, where the first DCI indicates usage of a physical downlink shared channel PDSCH transmission opportunity configured by a semi-persistent scheduling SPS.

[0245] In a possible embodiment, the first DCI indicates the usage of the PDSCH transmission opportunities configured by the SPS, including: the first DCI indicates the usage of N sets of PDSCH transmission opportunities configured by the activated SPS in the first time window, where N is an integer greater than or equal to 1.

[0246] In a possible embodiment, N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0247] When the value of the first bit is the first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is the second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window, the first bit is any one of the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0248] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0249] In a possible embodiment, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0250] In a possible embodiment, the transmission end time of the first DCI is the start time of the first time window.

[0251] In a possible embodiment, the communication unit 1401 is further configured to receive configuration information sent by a network device, where the configuration information is used to configure the number of indication bits corresponding to each set of SPS configurations, where one bit in the number of indication bits corresponds to one PDSCH transmission opportunity;

[0252] The first DCI indicates the usage of the PDSCH transmission opportunity configured by the SPS, including:

[0253] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

[0254] In a possible embodiment, N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0255] When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one in the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration;

[0256] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission opportunities of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0257] In a possible embodiment, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0258] In a possible embodiment, the number of indication bits corresponding to each set of SPS configurations is the same.

[0259] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including:

[0260] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations starting from the transmission end time of the first DCI.

[0261] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0262] The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

[0263] In a possible embodiment, the start time of the second time window is the end time of transmission of the first DCI.

[0264] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0265] For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0266] In a possible embodiment, the first DCI is an activation DCI, or the first DCI is a non-scheduled DCI, or the first DCI is carried on a PDSCH.

[0267] See Figure 14 , Figure 14 This is a schematic diagram of the structure of a communication device according to an embodiment of the present application. The communication device can be used to perform some or all of the functions of the network device in the above method embodiment. The device can be a network device, a device within a network device, or a device capable of being used in conjunction with a network device. The communication device can also be a chip system. Figure 14 The communication device shown includes a communication unit 1401 and a processing unit 1402. The communication unit 1401 is used to send and receive data. The communication unit 1401 integrates a receiving unit and a sending unit. The communication unit 1401 can also be called a transceiver unit. Alternatively, the communication unit 1401 can be split into a receiving unit and a sending unit. The processing unit 1402 is used to process the data.

[0268] The communication unit 1401 is configured to send first downlink control information DCI to a terminal device, where the first DCI indicates a usage of a physical downlink shared channel PDSCH transmission opportunity configured by a semi-persistent scheduling SPS.

[0269] In a possible embodiment, the first DCI indicates the usage of the PDSCH transmission opportunities configured by the SPS, including: the first DCI indicates the usage of N sets of PDSCH transmission opportunities configured by the activated SPS in the first time window, where N is an integer greater than or equal to 1.

[0270] In a possible embodiment, N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0271] When the value of the first bit is the first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is the second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window, the first bit is any one of the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0272] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0273] In a possible embodiment, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0274] In a possible embodiment, the transmission end time of the first DCI is the start time of the first time window.

[0275] In a possible embodiment, the communication unit 1401 is further configured to send configuration information to the terminal device, where the configuration information is used to configure the number of indication bits corresponding to each set of SPS configurations, where one bit in the number of indication bits corresponds to one PDSCH transmission opportunity;

[0276] The first DCI indicates the usage of the PDSCH transmission opportunity configured by the SPS, including:

[0277] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

[0278] In a possible embodiment, N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0279] When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one in the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration;

[0280] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission opportunities of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0281] In a possible embodiment, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0282] In a possible embodiment, the number of indication bits corresponding to each set of SPS configurations is the same.

[0283] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including:

[0284] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations starting from the transmission end time of the first DCI.

[0285] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0286] The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

[0287] In a possible embodiment, the start time of the second time window is the end time of transmission of the first DCI.

[0288] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0289] For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0290] In a possible embodiment, the first DCI is an activation DCI, or the first DCI is a non-scheduled DCI, or the first DCI is carried on a PDSCH.

[0291] The present application also provides a chip that can execute the steps of the terminal device in the aforementioned method embodiment. The chip includes a processor and a communication interface. The processor is configured to cause the chip to perform the following operations:

[0292] First downlink control information DCI sent by a network device is received, where the first DCI indicates a usage condition of a physical downlink shared channel PDSCH transmission opportunity configured by a semi-persistent scheduling SPS.

[0293] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0294] The first DCI indicates usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a first time window, where N is an integer greater than or equal to 1.

[0295] In a possible embodiment, N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0296] When the value of the first bit is the first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is the second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window, the first bit is any one of the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0297] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0298] In a possible embodiment, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0299] In a possible embodiment, the transmission end time of the first DCI is the start time of the first time window.

[0300] In a possible embodiment, configuration information sent by the network device may also be received, where the configuration information is used to configure the number of indication bits corresponding to each set of SPS configurations, where one bit in the number of indication bits corresponds to one PDSCH transmission opportunity;

[0301] The first DCI indicates the usage of the PDSCH transmission opportunity configured by the SPS, including:

[0302] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

[0303] In a possible embodiment, N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0304] When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one in the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration;

[0305] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission opportunities of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0306] In a possible embodiment, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0307] In a possible embodiment, the number of indication bits corresponding to each set of SPS configurations is the same.

[0308] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including:

[0309] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations starting from the transmission end time of the first DCI.

[0310] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0311] The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

[0312] In a possible embodiment, the start time of the second time window is the end time of transmission of the first DCI.

[0313] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0314] For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0315] In a possible embodiment, the first DCI is an activation DCI, or the first DCI is a non-scheduled DCI, or the first DCI is carried on a PDSCH.

[0316] The present application also provides a chip that can execute the steps related to the network device in the aforementioned method embodiment. The chip includes a processor and a communication interface. The processor is configured to cause the chip to perform the following operations:

[0317] A first downlink control information DCI is sent to the terminal device, where the first DCI indicates the usage of the physical downlink shared channel PDSCH transmission opportunity configured by the semi-static scheduling SPS.

[0318] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0319] The first DCI indicates usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a first time window, where N is an integer greater than or equal to 1.

[0320] In a possible embodiment, N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0321] When the value of the first bit is the first value, the first bit indicates that the first activated SPS configuration has an unused PDSCH transmission opportunity within the first time window; and / or, when the value of the first bit is the second value, the first bit indicates that the first activated SPS configuration does not have an unused PDSCH transmission opportunity within the first time window, the first bit is any one of the first bit field, and the first activated SPS configuration is the activated SPS configuration corresponding to the first bit;

[0322] In response to the presence of a bit with a first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

[0323] In a possible embodiment, in response to the value of each bit in the first bit field being the second value, the second bit field is empty.

[0324] In a possible embodiment, the transmission end time of the first DCI is the start time of the first time window.

[0325] In a possible embodiment, configuration information may also be sent to the terminal device, where the configuration information is used to configure the number of indication bits corresponding to each set of SPS configurations, where one bit in the number of indication bits corresponds to one PDSCH transmission opportunity.

[0326] The first DCI indicates the usage of the PDSCH transmission opportunity configured by the SPS, including:

[0327] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

[0328] In a possible embodiment, N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in N sets of activated SPS configurations;

[0329] When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one in the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration;

[0330] In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission opportunities of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; P is an integer greater than or equal to 1.

[0331] In a possible embodiment, in response to the value of each bit in the third bit field being the second value, the fourth bit field is empty.

[0332] In a possible embodiment, the number of indication bits corresponding to each set of SPS configurations is the same.

[0333] In a possible embodiment, based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, including:

[0334] Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations starting from the transmission end time of the first DCI.

[0335] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0336] The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

[0337] In a possible embodiment, the start time of the second time window is the end time of transmission of the first DCI.

[0338] In a possible embodiment, the first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including:

[0339] For each of the N activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

[0340] In a possible embodiment, the first DCI is an activation DCI, or the first DCI is a non-scheduled DCI, or the first DCI is carried on a PDSCH.

[0341] See also Figure 15 , Figure 15 15 is a schematic diagram of the structure of a communication device provided in an embodiment of the present invention. The communication device 1500 may include a memory 1501 and a processor 1502. Optionally, it may also include a communication interface 1503. The memory 1501, processor 1502, and communication interface 1503 are connected via one or more communication buses. Communication interface 1503 is controlled by processor 1502 to send and receive information.

[0342] The memory 1501 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1502. A portion of the memory 1501 may also include a nonvolatile random access memory.

[0343] The communication interface 1503 is used to receive or send data.

[0344] The processor 1502 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. A general-purpose processor may be a microprocessor, or alternatively, the processor 1502 may be any conventional processor. Specifically:

[0345] The memory 1501 is used to store program instructions.

[0346] The processor 1502 is configured to call the program instructions stored in the memory 1501 .

[0347] The processor 1502 calls the program instructions stored in the memory 1501 to enable the communication device 1500 to execute the method executed by the terminal device or the network device in the above method embodiment.

[0348] like Figure 16 As shown, Figure 16 16 is a schematic diagram of the structure of a module device provided in an embodiment of the present application. The module device 1600 can execute the steps of the terminal device or network device in the aforementioned method embodiment. The module device 1600 includes: a communication module 1601, a power module 1602, a storage module 1603, and a chip 1604.

[0349] Among them, the power module 1602 is used to provide power to the module device; the storage module 1603 is used to store data and instructions; the communication module 1601 is used for internal communication within the module device, or for communication between the module device and external devices; the chip 1604 is used to execute the method executed by the terminal device or network device in the above method embodiment.

[0350] It should be noted that Figure 15 and Figure 16 For the contents not mentioned in the corresponding embodiments and the specific implementation methods of each step, please refer to the contents of the method embodiment and will not be repeated here.

[0351] An embodiment of the present application also provides a computer-readable storage medium, which stores instructions. When the computer-readable storage medium is executed on a processor, the method flow of the above method embodiment is implemented.

[0352] An embodiment of the present application further provides a computer program product. When the computer program product is run on a processor, the method flow of the above method embodiment is implemented.

[0353] Regarding the various modules / units contained in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or partly software modules / units and partly hardware modules / units. For example, for various devices and products applied to or integrated into a chip, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on the integrated processor inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated into a chip module, the various modules / units contained therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same part of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / units can be implemented in the form of software programs. It can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the modules / units contained therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0354] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain operations can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0355] The descriptions of the various embodiments provided in this application can refer to each other. The descriptions of each embodiment have their own focus. For parts not described in detail in a particular embodiment, please refer to the relevant descriptions of other embodiments. For the convenience and brevity of description, for example, the functions and operations performed by the various devices and equipment provided in the embodiments of this application can refer to the relevant descriptions of the method embodiments of this application. The various method embodiments and the various device embodiments can also refer to, be combined with, or quote each other.

[0356] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication method, characterized in that: The method comprises: First downlink control information DCI sent by a network device is received, where the first DCI indicates usage of a physical downlink shared channel PDSCH transmission opportunity configured by a semi-persistent scheduling SPS.

2. The method according to claim 1, characterized in that The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: The first DCI indicates usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a first time window, where N is an integer greater than or equal to 1.

3. The method according to claim 2, characterized in that The N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in the N sets of activated SPS configurations; When the value of the first bit is a first value, the first bit indicates that there is an unused PDSCH transmission opportunity within the first time window for the first activated SPS configuration; And / or, when the value of the first bit is the second value, the first bit indicates that there is no unused PDSCH transmission opportunity for the first activation SPS configuration within the first time window, the first bit is any one in the first bit field, and the first activation SPS configuration is the activation SPS configuration corresponding to the first bit; In response to the presence of a bit with the first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of the K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

4. The method according to claim 3, characterized in that In response to the fact that the values ​​of all bits in the first bit field are the second value, the second bit field is empty.

5. The method according to any one of claims 2 to 4, characterized in that The transmission end time of the first DCI is the starting time of the first time window.

6. The method according to claim 1, characterized in that The method further comprises: receiving configuration information sent by the network device, where the configuration information is used to configure a number of indication bits corresponding to each set of SPS configurations, where one bit in the number of indication bits corresponds to a PDSCH transmission opportunity; The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: Based on the number of indication bits corresponding to each set of activated SPS configurations in N sets of activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

7. The method according to claim 6, characterized in that The N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in the N sets of activated SPS configurations; When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one of the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration; In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission timing of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; and P is an integer greater than or equal to 1.

8. The method according to claim 7, characterized in that In response to the fact that the values ​​of each bit in the third bit field are all the second value, the fourth bit field is empty.

9. The method according to any one of claims 6 to 8, characterized in that The first DCI indicating usage of PDSCH transmission opportunities of the N sets of activated SPS configurations based on the number of indication bits corresponding to each set of activated SPS configurations in the N sets of activated SPS configurations includes: Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations from the moment when transmission of the first DCI ends.

10. The method according to claim 1, characterized in that The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

11. The method according to claim 10, characterized in that The starting time of the second time window is the end time of transmission of the first DCI.

12. The method according to claim 1, characterized in that The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: For each of the N sets of activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

13. A communication method, characterized in that: The method comprises: A first downlink control information DCI is sent to a terminal device, where the first DCI indicates the usage of a physical downlink shared channel PDSCH transmission opportunity configured by a semi-static scheduling SPS.

14. The method according to claim 13, characterized in that The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: The first DCI indicates usage of N sets of PDSCH transmission opportunities with activated SPS configurations within a first time window, where N is an integer greater than or equal to 1.

15. The method according to claim 14, characterized in that The N is an integer greater than 1; the first DCI includes a first bit field and a second bit field; the first bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in the N sets of activated SPS configurations; When the value of the first bit is a first value, the first bit indicates that there is an unused PDSCH transmission opportunity within the first time window for the first activated SPS configuration; And / or, when the value of the first bit is the second value, the first bit indicates that there is no unused PDSCH transmission opportunity for the first activation SPS configuration within the first time window, the first bit is any one in the first bit field, and the first activation SPS configuration is the activation SPS configuration corresponding to the first bit; In response to the presence of a bit with the first value in the first bit field, the second bit field indicates the usage of the PDSCH transmission opportunities of the K sets of activated SPS configurations in the first time window in sequence according to a preset order; the value of the bit corresponding to each set of activated SPS configurations in the K sets of activated SPS configurations in the first bit field is the first value; K is an integer greater than or equal to 1.

16. The method according to claim 15, characterized in that In response to the fact that the values ​​of all bits in the first bit field are the second value, the second bit field is empty.

17. The method according to any one of claims 14 to 16, characterized in that The transmission end time of the first DCI is the starting time of the first time window.

18. The method according to claim 13, characterized in that The method further comprises: Sending configuration information to the terminal device, where the configuration information is used to configure the number of indicator bits corresponding to each set of SPS configurations, where one bit in the number of indicator bits corresponds to one PDSCH transmission opportunity; The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: Based on the number of indication bits corresponding to each set of activated SPS configurations in N sets of activated SPS configurations, the first DCI indicates the usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, where N is an integer greater than or equal to 1.

19. The method according to claim 18, characterized in that The N is an integer greater than 1; the first DCI includes a third bit field and a fourth bit field; the third bit field has N bits, and one bit of the N bits corresponds to a set of activated SPS configurations in the N sets of activated SPS configurations; When the value of the second bit is the first value, the second bit indicates that there are unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration; and / or, when the value of the second bit is the second value, the second bit indicates that there are no unused PDSCH transmission opportunities in the second indication bit number PDSCH transmission opportunities of the second activation SPS configuration, the second bit is any one of the third bit field, the second activation SPS configuration is the activation SPS configuration corresponding to the second bit, and the second indication bit number is the indication bit number corresponding to the second activation SPS configuration; In response to the presence of a bit with the first value in the third bit field, based on the number of indication bits corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations, the fourth bit field indicates the usage of the PDSCH transmission timing of the P sets of activated SPS configurations in a preset order; in the third bit field, the value of the bit corresponding to each set of activated SPS configurations in the P sets of activated SPS configurations is the first value; and P is an integer greater than or equal to 1.

20. The method according to claim 19, characterized in that In response to the fact that the values ​​of each bit in the third bit field are all the second value, the fourth bit field is empty.

21. The method according to any one of claims 18 to 20, characterized in that: The first DCI indicating, based on a number of indication bits corresponding to each of the N sets of activated SPS configurations, usage of the PDSCH transmission opportunities of the N sets of activated SPS configurations, includes: Based on the number of indication bits corresponding to each of the N sets of activated SPS configurations, the first DCI indicates usage of PDSCH transmission opportunities of the N sets of activated SPS configurations from the moment when transmission of the first DCI ends.

22. The method according to claim 13, wherein The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: The first DCI indicates that all PDSCH transmission opportunities of all activated SPS configurations within the second time window are unused.

23. The method according to claim 22, characterized in that The starting time of the second time window is the end time of transmission of the first DCI.

24. The method according to claim 13, wherein The first DCI indicates usage of the PDSCH transmission opportunity configured by the SPS, including: For each of the N sets of activated SPS configurations, the first DCI indicates the number of consecutive unused PDSCH transmission opportunities of the activated SPS configuration starting from the end time of transmission of the first DCI, where N is an integer greater than or equal to 1.

25. A communication device, characterized in that: The apparatus comprises: a unit for executing the method according to any one of claims 1 to 24.

26. A chip, characterized in that: The method comprises a processor and a communication interface, wherein the processor is configured to execute the method according to any one of claims 1 to 24.

27. A module device, characterized in that: The module device includes a communication module, a power module, a storage module and a chip, wherein: The power supply module is used to provide electrical energy to the module device; The storage module is used to store data and instructions; The communication module is used for internal communication of the module device, or for communication between the module device and an external device; The chip is used to execute the method according to any one of claims 1 to 24.

28. A communication device, characterized in that: The method comprises a memory and a processor, wherein the memory is used to store a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to any one of claims 1 to 24.

29. A computer-readable storage medium, characterized in that The computer storage medium stores computer-readable instructions, and when the computer-readable instructions are executed on the communication device, the communication device is caused to execute the method according to any one of claims 1 to 24.

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