Communication method and apparatus

Abstract

The present application relates to the technical field of communications, and provides a communication method and apparatus, used for solving the problem of large time delay of performing blind detection on control information by a terminal in a multi-service or multi-data multiplexing scenario. The method comprises: a network device sends first control information to a terminal, the first control information being used for indicating scheduling of second control information corresponding to a plurality of pieces of data, wherein the plurality of pieces of data at least comprises first data and second data; and the network device sends the second control information to the terminal, the second control information being used for indicating scheduling corresponding to the plurality of pieces of data.

Description

Communication method and device Technical Field

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

[0002] With the rapid development of wireless communication technology, user wireless applications are becoming more and more abundant, such as the three major application scenarios of Enhanced Mobile Broadband (eMBB), Massive Machine Type Communication (mMTC), and Ultra-reliability low latency communication (URLLC). Among them, the network equipment can send control signaling to the terminal through downlink control information (DCI) to indicate the data scheduling of different services. For example, in the two-level DCI indication method, the first-level DCI can be transmitted in the physical downlink control channel (PDCCH) in the control channel, and the terminal can obtain the scheduling information of the second-level DCI indicated in the first-level DCI by blindly detecting the PDCCH. The second-level DCI can be transmitted in the physical downlink shared channel (PDSCH) to indicate downlink scheduling information and / or uplink scheduling information.

[0003] However, in scenarios where multiple services or multiple data are multiplexed, the terminal needs to perform multiple blind detections to obtain control information of multiple data, resulting in large delays and power consumption.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a communication method and device for solving the problems of high latency and power consumption of blind detection control information in multi-service or multi-data multiplexing scenarios.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, a communication method is provided, which includes: receiving first control information, where the first control information is used to indicate scheduling of second control information corresponding to multiple data, where the multiple data include at least first data and second data; and receiving second control information, where the second control information is used to indicate scheduling of multiple data.

[0008] In the above implementation manner, the data may refer to user data or service data, etc. In the scenario of multi-service or multi-data multiplexing, the transmitter can jointly indicate the control information corresponding to multiple data, such as the DCI design of multi-data multiplexing, so that in the scenario of multi-data multiplexing, only the first control information carried in one PDCCH needs to be blindly detected, that is, only the PDCCH needs to be decoded once, thereby reducing the complexity of blind detection and effectively reducing the power consumption and delay of blind detection.

[0009] In one embodiment, the second control information includes third information and fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0010] In the above embodiment, the second control information may include scheduling information corresponding to multiple data, such as third information and fourth information, wherein the third information or the fourth information can be used alone to indicate the scheduling of the first data and the second data, or can jointly indicate the scheduling of the first data and the second data, thereby making the data scheduling method more flexible.

[0011] In one embodiment, the first control information includes first information and second information, and the second control information includes third information and fourth information; part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0012] In the above embodiment, the first control information may include scheduling information of the second-level DCI (i.e., the third information or the fourth information) corresponding to multiple data, such as the first information and the second information, wherein the first information or the second information can be used alone to indicate the scheduling of the third information and the fourth information, or can be used jointly to indicate the scheduling of the third information and the fourth information. The indication method of the control information is more flexible, and in the scenario of multiple data multiplexing, only the first control information carried in one PDCCH needs to be blindly detected, which can reduce the complexity of blind detection and effectively reduce the power consumption and delay of blind detection.

[0013] In one embodiment, the coding reliability corresponding to the bits carrying the first information is higher than the coding reliability corresponding to the bits carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

[0014] In the above implementation, the sending end can map the coding symbols of information corresponding to different data in the first control information to bits with different reliabilities according to the reliability requirements of the data, thereby meeting the high reliability requirements of the service or data and improving resource utilization and communication efficiency.

[0015] In one embodiment, the coding reliability corresponding to the bits carrying the third information is higher than the coding reliability corresponding to the bits carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that corresponding to the second data.

[0016] In the above implementation, the sending end can map the coding symbols of information corresponding to different data in the second control information to bits with different reliabilities according to the reliability requirements of the data, thereby meeting the high reliability requirements of the service or data and improving resource utilization and communication efficiency.

[0017] In one embodiment, if the first information and the second information adopt the first multi-data joint encoding method, the method also includes: joint decoding according to the first information and the second information; or, if the third information and the fourth information adopt the first multi-data joint encoding method, the method also includes: joint decoding according to the third information and the fourth information.

[0018] In the above embodiment, when the transmitting end adopts the first multiple data joint encoding, the receiving end adopts the corresponding decoding method, that is, performing joint decoding based on bit information corresponding to multiple data, so the delay of a decoding process is smaller.

[0019] In one embodiment, if the third information and the fourth information adopt the second multi-data joint encoding method, the method also includes: decoding according to the third information alone, and jointly decoding according to the third information and the fourth information; or, if the first information and the second information adopt the second multi-data joint encoding method, the method also includes: decoding according to the first information alone, and jointly decoding according to the first information and the second information.

[0020] In the above embodiment, when the transmitting end adopts the second multi-data joint encoding, the receiving end adopts the corresponding decoding method, that is, combining independent decoding and joint decoding based on the bit information corresponding to the multiple data, so that the joint decoding of the short code and the long code can obtain the long code gain, which can improve the reliability of the decoding.

[0021] In one embodiment, the method further includes: acquiring first indication information, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of multiple data.

[0022] In the above implementation, the receiving end can determine whether the transmitting end adopts a scheduling method based on a joint indication of multiple services or multiple data through the indication of the first indication information, thereby improving the flexibility of the control information indication and improving communication efficiency.

[0023] In one embodiment, if the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of multiple data, the method also includes: obtaining the second indication information, the second indication information indicating that the encoding method of the second control information is: the first multiple data joint encoding method, the second multiple data joint encoding method or the multiple data separate encoding method.

[0024] In the above implementation, the receiving end can determine the encoding method adopted by the transmitting end according to the indication of the second indication information, and thus can adopt the corresponding decoding method for decoding, thereby improving the flexibility of the encoding and decoding method.

[0025] In one embodiment, if the third information and the fourth information adopt a multiple data separate encoding method, the method further includes: separate decoding according to the third information, and separate decoding according to the fourth information.

[0026] In the above implementation manner, the scheduling information for multiple data in the second control information can be separately encoded. Correspondingly, the receiving end can separately decode the received information bits to obtain the third information and the fourth information.

[0027] In one embodiment, the first information and the second information jointly indicate information about the first resource jointly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

[0028] In the above embodiment, the transmitting end can also use a joint indication to indicate the ratio of the code lengths corresponding to the third information and the fourth information in the second control information, so that the receiving end can receive the second control information and distinguish the bit length corresponding to the third information included in the second control information, and the bit length corresponding to the fourth information, and then decode them separately.

[0029] In one embodiment, the first information and the second information are used to jointly indicate at least one of the following information: information about the first resource jointly occupied by the third information and the fourth information; a first index value, and the first index value is used to indicate the MCS index value corresponding to the third information and / or the fourth information.

[0030] In the above-described embodiment, the receiving end can receive the first control information and, based on the indication therein, distinguish the resources corresponding to the third information and the resources corresponding to the fourth information included in the second control information, and then decode them separately. Alternatively, the receiving end can determine the resources relevant for decoding the third and fourth information, as well as related information such as the MCS, based on a predefined resource configuration or a first index value indicated jointly by the first and second information. The indication method is flexible and can be displayed or implemented through pre-configured resource configuration or a protocol.

[0031] In one embodiment, the first information and the second information are also used to jointly indicate at least one of the following information: the relationship between the second resource occupied by the third information and the first resource; the relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; a first index table, the first index table including the correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

[0032] In the above-described embodiment, the receiving end can receive the first control information and, based on the indication therein, distinguish the resources corresponding to the third information and the resources corresponding to the fourth information included in the second control information, as well as information such as the MCS related to decoding the third and fourth information, and then decode them separately. The indication method is relatively flexible and can be displayed, or implemented through pre-configured resources or protocols.

[0033] In one implementation, the first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

[0034] In a second aspect, a communication method is provided, which includes: sending first control information, where the first control information is used to indicate the scheduling of second control information corresponding to multiple data, where the multiple data include at least first data and second data; and sending second control information, where the second control information is used to indicate the scheduling of multiple data.

[0035] In one embodiment, the second control information includes third information and fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0036] In one embodiment, the first control information includes first information and second information, and the second control information includes third information and fourth information; part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0037] In one embodiment, the coding reliability corresponding to the bits carrying the first information is higher than the coding reliability corresponding to the bits carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

[0038] In one embodiment, the coding reliability corresponding to the bits carrying the third information is higher than the coding reliability corresponding to the bits carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that corresponding to the second data.

[0039] In one embodiment, if the first information and the second information adopt the first multi-data joint encoding method, the method also includes: jointly encoding according to the first information and the second information; or, if the third information and the fourth information adopt the first multi-data joint encoding method, the method also includes: jointly encoding according to the third information and the fourth information.

[0040] In one embodiment, if the third information and the fourth information adopt the second multi-data joint encoding method, the method also includes: encoding according to the third information alone, and jointly encoding according to the third information and the fourth information; or, if the first information and the second information adopt the second multi-data joint encoding method, the method also includes: encoding according to the first information alone, and jointly encoding according to the first information and the second information.

[0041] In one embodiment, the method further includes: acquiring first indication information, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of multiple data.

[0042] In one embodiment, if the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of multiple data, the method also includes: obtaining the second indication information, the second indication information indicating that the encoding method of the second control information is: the first multiple data joint encoding method, the second multiple data joint encoding method or the multiple data separate encoding method.

[0043] In one embodiment, if the third information and the fourth information adopt a multiple data separate encoding method, the method further includes: separate encoding according to the third information, and separate encoding according to the fourth information.

[0044] In one embodiment, the first information and the second information jointly indicate information about the first resource jointly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

[0045] In one embodiment, the first information and the second information are used to jointly indicate at least one of the following information: information about the first resource jointly occupied by the third information and the fourth information; a first index value, and the first index value is used to indicate the MCS index value corresponding to the third information and / or the fourth information.

[0046] In one embodiment, the first information and the second information are also used to jointly indicate at least one of the following information: the relationship between the second resource occupied by the third information and the first resource; the relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; a first index table, the first index table including the correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

[0047] In one implementation, the first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

[0048] In a third aspect, a communication device is provided for implementing the above method. The communication device may be the transmitter described in the second aspect, or a device including the above transmission function, or a module in the transmitter described in the second aspect, such as a chip, chip system, or circuit, or a logical node, logic module, or software capable of implementing some or all of the transmitter functions.

[0049] Alternatively, the communication device may be the receiving end in the first aspect above, or a device including the above-mentioned receiving function, or a module in the receiving end in the first aspect above, such as a chip, a chip system or a circuit, or a logical node, logical module or software that can realize part or all of the receiving end functions.

[0050] The communication device includes modules, units, or means corresponding to the above-mentioned method, which can be implemented by hardware, software, or hardware executing corresponding software implementation. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

[0051] In conjunction with the third aspect above, in one possible implementation, the communication device may include a processing module and a transceiver module. The processing module may be configured to implement the processing functions described in any of the above aspects and any possible implementations thereof. The processing module may, for example, be a processor. The transceiver module, also referred to as a transceiver unit, may be configured to implement the transmitting and / or receiving functions described in any of the above aspects and any possible implementations thereof. The transceiver module may be comprised of a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0052] In combination with the third aspect above, in a possible implementation, the transceiver module includes a sending module and a receiving module, which are respectively used to implement the sending and receiving functions in any of the above aspects and any possible implementations thereof.

[0053] In a fourth aspect, a communication device is provided, comprising: a processor; the processor is configured to be coupled to a memory, read instructions from the memory, and then execute the method described in any of the above aspects according to the instructions. The communication device can be the transmitter described in the second aspect and any possible implementation thereof, or a device including the above-mentioned transmission function, or a module in the above-mentioned transmitter, such as a chip, chip system, or circuit, or a logical node, logic module, or software that can implement some or all of the transmitter functions.

[0054] Alternatively, the communication device can be the receiving end in the above-mentioned first aspect and any possible implementation thereof, or a device including the above-mentioned receiving function, or a module in the above-mentioned receiving end, such as a chip, chip system or circuit, or a logical node, logical module or software that can realize part or all of the transmitting end functions.

[0055] In combination with the fourth aspect above, in a possible implementation, the communication device further includes a memory, which is used to store necessary program instructions and data.

[0056] In conjunction with the fourth aspect above, in one possible implementation, the communication device is a chip or a chip system. Optionally, when the communication device is a chip system, it can be composed of a chip, or it can include a chip and other discrete components, such as an interface module and a logic circuit, for implementing the first or second aspect above and any possible implementation thereof.

[0057] In a fifth aspect, a communication device is provided, comprising: a processor and an interface circuit; the interface circuit is configured to receive a computer program or instruction and transmit it to the processor; and the processor is configured to execute the computer program or instruction, so that the communication device performs the method described in any of the above aspects. The communication device may be the transmitter described in the second aspect and any possible implementation thereof, or a device including the above-mentioned transmission function, or a module in the above-mentioned transmitter, such as a chip, chip system, or circuit, or a logical node, logic module, or software that can implement some or all of the transmitter functions.

[0058] Alternatively, the communication device can be the receiving end in the above-mentioned first aspect and any possible implementation thereof, or a device including the above-mentioned receiving function, or a module in the above-mentioned receiving end, such as a chip, chip system or circuit, or a logical node, logical module or software that can realize part or all of the receiving end functions.

[0059] In conjunction with the fifth aspect, in one possible implementation, the communication device is a chip or a chip system. Optionally, when the communication device is a chip system, it can be composed of a chip, or it can include a chip and other discrete components, such as an interface module and a logic circuit, to implement the first or second aspect and any possible implementation thereof.

[0060] In a sixth aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium. When the computer-readable storage medium is run on a computer, the computer can execute the method described in any one of the above aspects.

[0061] In a seventh aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method described in any one of the above aspects.

[0062] In an eighth aspect, a communication system is provided, which includes a communication device for executing the method described in the above-mentioned first aspect and any possible implementation thereof, and a communication device for executing the method described in the above-mentioned second aspect and any possible implementation thereof.

[0063] Among them, the technical effects brought about by any possible implementation method in the second to eighth aspects can refer to the technical effects brought about by different possible implementation methods in the above-mentioned first aspect, and will not be repeated here.

[0064] It is understandable that, provided that the solutions are not contradictory, the solutions in each aspect can be combined. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figures 1 to 5 are schematic diagrams of the structures of several communication systems provided by this application;

[0066] FIG6 is a schematic structural diagram of a communication device provided by the present application;

[0067] FIG7A is a schematic diagram of a joint decoding method provided by the present application;

[0068] FIG7B is a schematic diagram of a two-stage DCI indication method provided by the present application;

[0069] FIG8 is a flow chart of a communication method provided by the present application;

[0070] FIG9 is a schematic diagram of a two-stage DCI indication method provided by the present application;

[0071] FIG10 is a schematic diagram of an indication method of first control information provided by the present application;

[0072] FIG11 is a schematic diagram of a self-decoding combined with joint decoding method provided by the present application;

[0073] FIG12 is a schematic structural diagram of another communication device provided in this application. DETAILED DESCRIPTION

[0074] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0075] In the following, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0076] In addition, in this application, directional terms such as "up", "down", "left", "right", "horizontal" and "vertical" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0077] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0078] First, the implementation scenario of the embodiment of the present application is described with reference to the accompanying drawings.

[0079] The method provided in the embodiments of the present application can be applied to various communication systems, including but not limited to: non-terrestrial network (NTN) communication system, narrowband Internet of Things (NB-IoT) system, global system for mobile communications (GSM), enhanced data rate for GSM evolution (EDGE), wideband code division multiple access (WCDMA), code division multiple access 2000 (CDMA2000), time division-synchronization code division multiple access (TD-SCDMA), long term evolution (LTE), 5G mobile communication system and three major application scenarios of the next generation such as 6G mobile communication system, such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC) and enhanced machine-type communications (EMTC). Communication, eMTC) and other services.

[0080] The following describes the communication scenarios of the embodiments of the present application by taking the communication systems shown in Figures 1 to 5 as an example.

[0081] As shown in Figure 1, a schematic diagram of the architecture of a communication system provided in an embodiment of the present application is provided. In Figure 1, the communication system may include at least one network device and / or at least one terminal device. For example, the communication system may include network device 101 and network device 102, or the communication system may include network device 101 and terminal device 103, or the communication system may include terminal device 104 and terminal device 105.

[0082] In Figure 1 , the network device can provide wireless access services for terminal devices. Specifically, each network device corresponds to a service coverage area. Terminal devices that enter this area can communicate with the network device via the Uu port to receive the wireless access services provided by the network device. Terminal devices and network devices can communicate via the Uu port link. The Uu port link can be divided into uplink (UL) and downlink (DL) based on the direction of the uplink data transmitted. The UL can transmit data sent from the terminal device to the network device, and the DL can transmit data transmitted from the network device to the terminal device. For example, in Figure 1 , terminal device 103 is located in the coverage area of ​​network device 101. Network device 101 can send data to terminal device 103 via DL, and terminal device 103 can send data to network device 101 via UL.

[0083] Terminal devices can communicate with other terminal devices via direct communication links. A direct communication link can be referred to as a side link or sidelink (SL). For example, if the direct communication link is a sidelink, terminal devices 103 and 104 in FIG1 can communicate via the sidelink, and terminal devices 104 and 105 in FIG1 can communicate via the sidelink.

[0084] The network devices in Figure 1, such as network device 101 or network device 102, can be transmission reception points (TRPs), base stations, relay stations, or access points. Network devices 101 or 102 can be network devices in a 5G communication system or a network device in a future evolution network. They can also be base transceiver stations (BTSs) in a global system for mobile communication (GSM) or a code division multiple access (CDMA) network, NBs (NodeBs) in wideband code division multiple access (WCDMA), or eNBs or eNodeBs (evolutionary NodeBs) in long term evolution (LTE). Network devices 101 or 102 can also be wireless controllers in a cloud radio access network (CRAN) scenario.

[0085] The terminal devices in FIG1 , such as terminal device 103 , terminal device 104 , or terminal device 105 , may be devices that include wireless transceiver functionality and can provide communication services to users. Specifically, terminal device 103 , terminal device 104 , or terminal device 105 may be devices in a V2X system, a D2D system, a machine type communication (MTC) system, or the like. For example, terminal device 103 , terminal device 104 , terminal device 105 , or terminal device 106 may refer to an industrial robot, industrial automation equipment, user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless terminal device, a user agent, or a user device. For example, terminal device 103, terminal device 104, terminal device 105 or terminal device 106 can 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 function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network or a network after 5G or a terminal device in a future evolution network, and this application does not limit this. The terminal device of this application can also be a vehicle-mounted module, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit that is built into a vehicle as one or more components or units, and the vehicle can implement the method of this application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit.

[0086] In one embodiment, the network device may be an aerial network device in an NTN communication system, or may refer to a non-ground base station or non-ground device, such as a drone, a hot air balloon, a low-orbit satellite, a medium-orbit satellite, a high-orbit satellite, etc. The method provided in the embodiment of the present application can be applied to the communication system shown in Figure 2, which may include an aerial network device, such as a satellite; the communication system may also include at least one terminal device, such as the terminal device shown in Figure 2.

[0087] Satellites can operate in either transparent transmission mode or regeneration mode. In transparent transmission mode, they act as relays, forwarding signals from network devices or terminals, enhancing terrestrial network coverage. Satellites can filter, convert, and amplify wireless frequencies. As shown in Figure 2, transparent transmission between terminals and base stations is possible via the transparent transmission satellite.

[0088] When operating in regenerative mode, the satellite possesses signal processing capabilities; this means it has the processing capabilities of a base station, capable of sending signals to other network devices or terminal devices, thereby providing communication services to these devices. As shown in Figure 2, a terminal establishes wireless communication with the regenerative satellite via the Uu port, enabling communication with the core network.

[0089] In addition, the method provided in the embodiment of the present application can be applied to an inter-satellite link (ISL) communication system between satellites as shown in Figure 3. The communication system may include satellite 1 and satellite 2, and satellite 1 and satellite 2 communicate via the ISL. The satellite includes two parts: an acquisition, pointing and tracking (APT) subsystem and a communication subsystem, as shown in Figure 3.

[0090] The communications subsystem is responsible for transmitting intersatellite information and is the core of the intersatellite communication system. The APT subsystem is responsible for acquisition, alignment, and tracking between satellites. Acquisition is used to determine the incoming signal's direction, alignment is used to adjust the transmitted wave's aiming direction, and tracking is used to continuously adjust alignment and acquisition throughout the communication process. To minimize the effects of attenuation and interference in the channel and maintain high confidentiality and transmission rates, the APT can be adjusted in real time to continuously adapt to changes. Existing APT and communication subsystems are independent systems. The APT subsystem can be an optical system, which is difficult to align and requires mechanical pointing adjustment. The communication subsystem can be an optical communication system, and some microwave band systems also use a single high-gain antenna.

[0091] The method provided in the embodiment of the present application can be applied to the integrated access and backhaul (IAB) network as shown in Figure 4. The IAB network refers to a transmission network for information integrated access and backhaul between the terminal, the core network and the user service end (such as the server). For the backhaul link (backhaul link) and the access link (access link), the IAB network can realize access and backhaul integration. As shown in Figure 4, the IAB network may include an IAB parent node (IAB Doner), an IAB node (IAB node) and a user device. Among them, the link between the IAB Doner and the IAB node is a backhaul link, and the link between the user device and the IAB node is an access link.

[0092] For example, the method provided in the embodiment of the present application can be applied to side-by-side communication scenarios between terminals. Common application scenarios include wireless screen projection, virtual reality (VR) games, or data encoding and decoding of applications in mobile phones. The schematic diagram of mobile phone wireless screen projection shown in Figure 5 includes a smart TV and a smart phone, which realize screen projection and playback through wireless signals.

[0093] It should be noted that the communication systems shown in Figures 1-5 are for illustrative purposes only and are not intended to limit the technical solutions of this application. Those skilled in the art will appreciate that, in a specific implementation, the communication system may also include other devices, and the number of network devices and terminal devices may be determined based on specific needs. Furthermore, the network elements shown in the figures may also be connected via other interfaces, without limitation.

[0094] Optionally, each network element in the diagram of the embodiment of the present application, such as a network device or a terminal device, may be a functional module within a device. It is understood that the functional module may be a component in a hardware device, such as a communication chip or communication component in a terminal device or a network device, or a software functional module running on the hardware, or a virtualized function instantiated on a platform (e.g., a cloud platform).

[0095] For example, each network element in Figures 1 to 5 can be implemented by the communication device 600 in Figure 6. Figure 6 shows a schematic diagram of the hardware structure of a communication device applicable to embodiments of the present application. The communication device 600 may include at least one processor 601, a communication line 602, a memory 603, and at least one communication interface 604.

[0096] The processor 601 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0097] The communication link 602 may include a path for transmitting information between the above components, such as a bus.

[0098] The communication interface 604 uses any transceiver-like device for communicating with other devices or communication networks, such as an Ethernet interface, a radio access network (RAN) interface, a wireless local area network (WLAN) interface, etc.

[0099] The memory 603 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory can be independent and connected to the processor via a communication line 602. The memory can also be integrated with the processor. The memory provided in the embodiment of the present application can generally have non-volatility. Among them, the memory 603 is used to store the computer execution instructions involved in executing the solution of the present application, and is controlled by the processor 601 to execute. The processor 601 is used to execute the computer-executable instructions stored in the memory 603, thereby implementing the method provided in the embodiment of the present application.

[0100] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0101] In a specific implementation, as an embodiment, the processor 601 may include one or more CPUs, such as CPU0 and CPU1 in FIG6 .

[0102] In a specific implementation, as an embodiment, the communication device 600 may include multiple processors, such as the processor 601 and the processor 607 in FIG6 . Each of these processors may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. The processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0103] In a specific implementation, as an embodiment, the communication device 600 may further include an output device 605 and an input device 606. The output device 605 communicates with the processor 601 and can display information in a variety of ways. For example, the output device 605 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device 606 communicates with the processor 601 and can receive user input in a variety of ways. For example, the input device 606 can be a mouse, a keyboard, a touch screen device, or a sensor device.

[0104] In a specific implementation, the communication device 600 can be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, or a device with a similar structure as shown in Figure 6. The embodiment of the present application does not limit the type of the communication device 600.

[0105] As can be seen from the foregoing, the embodiments of the present application can be applied to multi-service scenarios, or multi-data scenarios, such as service scenarios such as eMBB or URLLC, wherein the URLLC service has relatively high requirements for communication reliability and relatively high requirements for latency. For example, the reliability requirement of a certain URLLC service is not less than 99.99999%, and the latency requirement is not more than 0.1 milliseconds. The eMBB service has relatively low requirements for communication reliability, but the code length (i.e., the information length) after channel coding of the eMBB data is relatively long, while the code length after channel coding of the URLLC data is relatively short. From the perspective of coding theory, the longer the code length after channel coding, the better the channel coding performance and the higher the reliability. In this application, the encoded information can be divided into short code or long code according to the code length after channel coding. The embodiments of the present application are not limited to the above-mentioned service scenarios.

[0106] Currently, there is a joint encoding / decoding implementation method that achieves long code gain by jointly encoding a short code with a long code. For example, as shown in Figure 7A, the transmitter can encode the URLLC short code separately and then jointly encode the URLLC short code with the eMBB long code to obtain a joint codeword. For the receiver, it can first self-decode based on the URLLC short code in the joint codeword. If the decoding is unsuccessful, it can perform joint decoding to achieve long code gain. The specific steps are shown in Figure 7A. The receiver can first decode the URLLC short code separately. If the URLLC short code decoding is successful, it can assist in decoding the eMBB long code, thereby achieving code rate reduction gain for eMBB. If the URLLC short code decoding is unsuccessful, it can be jointly decoded with the eMBB long code to achieve long code gain.

[0107] In addition, Figure 7B shows a two-level DCI indication method. The first-level DCI can be carried in the PDCCH to indicate the scheduling information of the second-level DCI, such as the time-frequency and spatial resources, modulation order, code rate or format of the second-level DCI.

[0108] The second-level DCI may be carried in the PDSCH and is used to indicate data scheduling information, which may specifically include downlink scheduling information or uplink scheduling information, or downlink scheduling information and uplink scheduling information.

[0109] This solution can support flexible DCI formats and only requires blind detection of the first-level DCI with a fixed length, resulting in low blind detection latency.

[0110] Based on the above-mentioned two-level DCI indication method, for scenarios where multiple services or multiple data are multiplexed, such as eMBB and URLLC service multiplexing, the first-level DCI in the control information corresponding to the eMBB data and URLLC data needs to be blind-checked, that is, blind-checks need to be performed separately for the two services / data. Therefore, the blind-check delay is relatively high.

[0111] Based on the above problems, the present application provides a communication method for scenarios where multiple services or multiple data are multiplexed. By jointly indicating the control information corresponding to multiple data, such as the DCI design for multiple service multiplexing, only one PDCCH needs to be blindly detected in the scenario where multiple services are multiplexed, that is, only one PDCCH needs to be decoded, thereby reducing the complexity of blind detection and effectively reducing the power consumption and delay of blind detection.

[0112] The present application provides a communication method, as shown in FIG8 , which may include the following steps.

[0113] 801: The network device sends first control information to indicate scheduling of second control information corresponding to multiple data.

[0114] The first control information is used to indicate the scheduling of the second control information corresponding to multiple data, and the multiple data at least include the first data and the second data.

[0115] It should be noted that the first data or the second data in the embodiment of the present application can specifically be user data, or business data that provides certain services to users, for example, it can be instruction information or audio and video multimedia data, etc. This application does not impose any restrictions on this.

[0116] Exemplarily, the first control information is carried in the first level DCI (1 st DCI), the second control information is carried in the second-level DCI (2 nd DCI), that is, the first-level DCI can be used to indicate the scheduling information of the second-level DCI of the first data and the second-level DCI of the second data.

[0117] It should be noted that in the embodiments of the present application, there is no limitation on the service types and the amount of data in the multi-service or multi-data multiplexing scenarios. Usually, at least two services or two data with different reliability and / or latency may be included, such as URLLC services and eMBB services. This does not constitute a limitation on the applicable scenarios of the present application.

[0118] It should be noted that this application is not limited to scenarios where URLLC services and eMBB services are multiplexed. The first data and the second data can be data of different services. For example, the first data can be data of a URLLC service, and the second data can be data of an eMBB service. Since URLLC services have higher latency and reliability requirements than eMBB services, the network device can determine to prioritize the transmission of the first data.

[0119] Alternatively, the first data and the second data may be data of different priorities, such as the priority of the first data is higher than the priority of the second data. Based on the different priorities of the data, the network device may preferentially transmit the data with the higher priority.

[0120] Alternatively, the first data and the second data may be data with different quality of service (QoS) requirements. For example, the QoS requirements may include, but are not limited to, one or more of reliability requirements (e.g., packet loss rate), latency requirements, throughput requirements, or availability requirements. The network device may determine, based on the QoS requirements, the first data with a higher QoS requirement, thereby determining to preferentially transmit the first data on the first resource.

[0121] For example, as shown in Figure 9, the PDCCH carries the first-level DCI, wherein the first-level DCI includes the first-level DCI corresponding to the first data and the first-level DCI corresponding to the second data. The terminal can obtain the first-level DCI by blindly detecting the PDCCH.

[0122] Specifically, the first control information may include information about the resource configuration corresponding to the second control information, which may include information about time domain, frequency domain, or spatial domain resources, so that the terminal can receive the second control information on the specified time-frequency-spatial resources based on the first control information. In addition, the first control information may also include decoding-related information corresponding to the second control information, such as the modulation order, bit rate, or format, which is used to indicate decoding-related information for the second control information. The terminal can then decode the second control information based on the decoding-related information in the first control information.

[0123] Correspondingly, the terminal receives the first control information and obtains scheduling information of the second control information.

[0124] 802: The network device sends second control information to indicate scheduling corresponding to multiple data.

[0125] Specifically, the second control information may include resource configuration information corresponding to the multiple data, so that the terminal can obtain the data on the specified resources based on the second control information. Furthermore, the second control information may also include information such as the modulation order, code rate, or format corresponding to the multiple data, indicating decoding-related information corresponding to the data. The terminal can then decode the data based on the decoding-related information in the second control information.

[0126] Correspondingly, the terminal receives the second control information and obtains the scheduling information of the data.

[0127] The second control information may at least be used to indicate scheduling information corresponding to the first data and the second data.

[0128] Exemplarily, the second control information is carried in the second-level DCI, that is, the second-level DCI can indicate scheduling information of the first data and the second data.

[0129] For example, as shown in Figure 9, the PDSCH carries the second-level DCI and data, where the second-level DCI includes scheduling information for indicating the first data and the scheduling information for the second data, such as the second-level DCI for the first data and the second-level DCI for the second data. The terminal can receive the PDSCH on the time-frequency resources specified by the first-level DCI to obtain the second-level DCI. Furthermore, the terminal can receive and decode the first data and the second data using the time-frequency resources and decoding-related information indicated by the second-level DCI.

[0130] In addition, in a possible implementation, the PDCCH may carry first-level DCI and second-level DCI, wherein the first-level DCI includes first-level DCI corresponding to the first data and first-level DCI corresponding to the second data, and the second-level DCI includes scheduling information for indicating the first data and scheduling information for the second data. The PDSCH carries the first data and the second data.

[0131] Specifically, in the first control information or the second control information, the control information corresponding to multiple data can be indicated separately or jointly. Specifically, the separate indication of multiple data in the first control information means that different fields in the first control information are used to indicate the scheduling information of the second-level DCI of different data. Alternatively, the joint indication of multiple data in the first control information means that the first control information includes a field that is used to jointly indicate the scheduling information of the second-level DCI of multiple data.

[0132] In one embodiment, the first control information may include first information and second information, and the second control information may include third information and fourth information, wherein part or all of the third information is used to indicate the scheduling of the first data, and part or all of the fourth information is used to indicate the scheduling of the second data. Alternatively, in another embodiment, part or all of the third information and the fourth information are used to jointly indicate the scheduling of the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling of the second data.

[0133] It should be noted that in the above statement, all information can be used to indicate all fields (or bits) corresponding to a certain information, and partial information is used to indicate some fields (or some bits) in all fields (or bits) corresponding to a certain information.

[0134] Exemplarily, the second control information includes multiple fields for representing the third information, wherein all the information of the third information is used to indicate the scheduling of the first data, which may mean that all the fields corresponding to the third information are used to indicate the scheduling of the first data; part of the indication information of the third information is used to indicate the scheduling of the first data, which may mean that among the multiple fields corresponding to the first information, some fields or some bits are used to indicate the scheduling of the first data.

[0135] In addition, part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information. Alternatively, in another embodiment, part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information.

[0136] The first control information or the second control information may use either a separate indication or a joint indication. Alternatively, the first control information or the second control information may use both a separate indication and a joint indication. That is, the separate indication and the joint indication coexist in the first control information or the second control information, with some information included being a separate indication, such as information specific to a service, and some information being a joint indication, such as information shared by multiple data or a situation where the joint indication uses fewer bit resources.

[0137] Exemplarily, the first data is URLLC data, the second data is eMBB data, the third information includes the second-level DCI of URLLC, the fourth information includes the second-level DCI of eMBB, the first information includes the first-level DCI of URLLC, the second information includes the first-level DCI of eMBB, all the information of the first-level DCI of URLLC is used to indicate the second-level DCI of URLLC, or the first-level DCI of URLLC and the first-level DCI of eMBB are used to jointly indicate the scheduling of the second control information. Alternatively, part of the information (such as part of the field) of the first-level DCI of URLLC is used to indicate the scheduling resources of the second-level DCI of URLLC, and part of the information (such as part of the field) of the first-level DCI of eMBB is used to indicate the scheduling resources of the second-level DCI of eMBB. In addition, the first information may also include part of the information, which is also used to jointly indicate part of the scheduling information of the second-level DCI of URLLC and the second-level DCI of eMBB, such as decoding-related MCS and other information.

[0138] Optionally, the above-mentioned first control information or second control information can independently choose to adopt at least one of the following indication methods: separate indication, joint indication, or a combination of separate indication and joint indication, etc. Different implementation methods can also be combined. This application does not limit the specific indication method.

[0139] The above-mentioned implementation mode of the present application, in the scenario of multi-service or multi-data multiplexing, by jointly indicating the control information corresponding to multiple data, such as the two-level DCI design of multi-data multiplexing, the terminal only needs to blindly detect the first-level DCI in a PDCCH, thereby reducing the complexity of blind detection and effectively reducing the power consumption and delay of blind detection.

[0140] It should be noted that the above different indication methods may correspond to different encoding and decoding methods. Several different encoding and decoding methods provided in this application are introduced in detail below.

[0141] In an embodiment of the present application, for the first control information or the second control information in a multi-service or multi-data multiplexing scenario, the following three encoding methods are provided, namely, a multi-data separate encoding method, a first multi-data joint encoding method, and a second multi-data joint encoding method. Among them, the multi-data separate encoding method refers to encoding and decoding the control information corresponding to multiple data separately, that is, one data corresponds to a separate encoded and decoded information bit string. For example, in the first control information, the first-level DCI corresponding to the first data is separately encoded / decoded, and the first-level DCI corresponding to the second data is separately encoded / decoded; or, in the second control information, the second-level DCI corresponding to the first data is separately encoded / decoded, and the second-level DCI corresponding to the second data is separately encoded / decoded.

[0142] Exemplarily, if the second control information adopts a multi-data separate encoding method, that is, the sending end separately encodes different indication information based on different data, so that the receiving end can separately decode the specified bit from the received signal based on the indicated encoding method, such as the receiving end can separately decode according to the third information and separately decode according to the fourth information.

[0143] Exemplarily, the PDSCH includes second-level DCI, which includes URLLC second-level DCI and eMBB second-level DCI. The URLLC second-level DCI is separately encoded to obtain bit string 1, and the eMBB second-level DCI is separately encoded to obtain bit string 2, thereby obtaining a bit sequence corresponding to the second-level DCI, i.e., including bit string 1 + bit string 2. Correspondingly, the receiving end can separately decode bit string 1 to obtain URLLC second-level DCI, and separately decode bit string 2 to obtain eMBB second-level DCI.

[0144] Similarly, if the first control information uses a multiple data separate encoding method, that is, the transmitter encodes the first information separately and the second information separately; then, correspondingly, the receiver can decode separately based on the first information and separately based on the second information. For example, if the PDCCH includes first-level DCI, the first-level DCI includes URLLC first-level DCI and eMBB first-level DCI. Specifically, the URLLC first-level DCI is separately encoded to obtain bit string 1, and the eMBB first-level DCI is separately encoded to obtain bit string 2. The resulting bit sequence corresponding to the first-level DCI includes bit string 1 + bit string 2. Correspondingly, the receiver can decode bit string 1 separately to obtain URLLC first-level DCI and decode bit string 2 separately to obtain eMBB first-level DCI.

[0145] In addition, the first multi-data joint coding method refers to the transmitter performing a joint coding operation based on the control information of multiple services. Correspondingly, the receiver can perform joint decoding based on the received information. The second multi-data joint coding method refers to the transmitter performing a separate coding operation and a joint coding operation on the control information of multiple services, i.e., performing two coding operations. Correspondingly, the receiver can perform self-decoding based on the received information and then perform joint decoding, thereby improving decoding reliability.

[0146] Exemplarily, if the first information and the second information adopt the first multiple data joint coding method, the receiving end may jointly decode the first information and the second information. If the third information and the fourth information adopt the first multiple data joint coding method, the receiving end may jointly decode the third information and the fourth information.

[0147] Optionally, the first information and the second information may jointly indicate information about the first resource jointly occupied by the third information and the fourth information, as well as the ratio of the code length corresponding to the third information to the code length corresponding to the fourth information. The code length refers to the length of the information bits after channel coding. This allows the receiving end to receive the second control information, distinguish the bit length corresponding to the third information and the bit length corresponding to the fourth information included in the second control information, and then decode them separately.

[0148] Optionally, the first information and the second information may jointly indicate information about the first resource jointly occupied by the third information and the fourth information, as well as the relationship between the resources corresponding to the third information and the resources corresponding to the fourth information. This allows the receiving end to receive the second control information, distinguish between the resources corresponding to the third information and the resources corresponding to the fourth information included in the second control information, and then decode them separately.

[0149] Exemplarily, the first-level DCI (i.e., the first-level DCI for the first data and the first-level DCI for the second data) jointly indicates the total time-frequency-space resources, modulation order, and code rate or format of the second-level DCI for the first data and the second-level DCI for the second data. In addition, the first-level DCI may also indicate the ratio of the information bit lengths of the second-level DCI for the first data and the second-level DCI for the second data, so as to be used by the receiving end to distinguish the information bit lengths of the second-level DCI for the first data and the second-level DCI for the second data.

[0150] In another embodiment, optionally, the first information and the second information can also be used to jointly indicate at least one of the following information: the relationship between the second resource occupied by the third information and the first resource, or the relationship between the modulation and coding scheme (MCS) index value corresponding to the third information and the MCS index value corresponding to the fourth information, or a first index table. The first index table may include a correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information, which is used to determine the MCS corresponding to the second-level DCI of different services based on the index value. The different MCS index values ​​corresponding to the third information correspond to different code rates and / or modulation modes, respectively, and the different MCS index values ​​corresponding to the fourth information correspond to different code rates and / or modulation modes, respectively.

[0151] Optionally, the above information can also be pre-configured for the network equipment and the terminal in a predefined manner. For example, the first-level DCI jointly indicates the second-level DCI of the first data and the total time-frequency resources of the second-level DCI of the second data, and the relationship between the time-frequency resources occupied by the second-level DCI of the first data and the total time-frequency resources is predefined, such as the time-frequency resources occupied by the second-level DCI of the first data is 1 / 3 of the total time-frequency resources, and the information of the starting time-frequency resources is agreed upon. Correspondingly, the receiving end can determine the time-frequency resources respectively occupied by the second-level DCI of the first data and the second-level DCI of the second data based on the predefined resource configuration and information such as the total time-frequency resources indicated by the first-level DCI.

[0152] In another embodiment, the first information and the second information may optionally be used to jointly indicate at least one of the following: information about the first resource jointly occupied by the third information and the fourth information; and a first index value indicating an MCS index value corresponding to the third information and / or the fourth information. Accordingly, the receiving end may determine resources related to decoding the third information and the fourth information, as well as related information such as the MCS, based on the predefined resource configuration and the joint indication of the first and second information.

[0153] In one embodiment, in the first multi-data joint encoding method, the transmitting end may map encoding symbols of different data to bits of different reliabilities according to data reliability requirements. Specifically, control information corresponding to data with high reliability requirements may be mapped to a high-reliability to-be-encoded bit string, while control information corresponding to data with low reliability requirements may be mapped to a low-reliability to-be-encoded bit string.

[0154] For example, if the reliability requirement for the first data is higher than that for the second data, then in the first control information, the coding reliability corresponding to the bits carrying the first information is higher than the coding reliability corresponding to the bits carrying the second information. As shown in Figure 10, in the first control information, the first-level DCI of the first data, i.e., the first information, is mapped to a high-reliability bit string to be encoded, and the first-level DCI of the second data, i.e., the second information, is mapped to a lower-reliability bit string to be encoded.

[0155] For another example, if the reliability requirement for the first data is higher than that for the second data, then in the second control information, the coding reliability corresponding to the bits carrying the third information is higher than the coding reliability corresponding to the bits carrying the fourth information. As shown in Figure 10, in the second control information, the second-level DCI of the first data, i.e., the third information, is mapped to a high-reliability bit string to be encoded, while the second-level DCI of the second data, i.e., the fourth information, is mapped to a lower-reliability bit string to be encoded.

[0156] In another embodiment, if the third and fourth information utilize the second multi-data joint encoding method, the receiving end may decode the third information alone and jointly decode the third and fourth information. If the first and second information utilize the second multi-data joint encoding method, the receiving end may decode the first information alone and jointly decode the first and second information. This is shown in Figure 11.

[0157] The following will describe the indication methods of the first control information and the second control information, as well as several different encoding and decoding methods, respectively, in conjunction with specific implementation methods. The following implementation methods are described using the scenario of multiplexing the first data and the second data in a multi-data scenario as an example. For example, the first data may be URLLC data and the second data may be eMBB data, which does not limit the application scenarios of this application.

[0158] 1. First control information (1 st DCI)

[0159] 1. Use multiple data separate encoding method for the second control information

[0160] 1.1. Separate indication: The first-level DCI includes the first-level DCI of the first data and the first-level DCI of the second data, wherein the first-level DCI of the first data indicates resource configuration information and decoding-related information of the second-level DCI of the first data.

[0161] Among them, as mentioned above, the resource configuration information may include time-frequency-space resources, and the decoding-related information may include at least one of the scheduling information such as the modulation order and the code rate or format; the first-level DCI of the second data indicates the resource configuration information and decoding-related information of the second-level DCI of the second data.

[0162] 1.2. Joint indication: The first-level DCI is used to indicate resource configuration information and decoding-related information of the second-level DCI of the first data and the second-level DCI of the second data.

[0163] Method 1: The first-level DCI jointly indicates the total resource configuration of the second-level DCI of the first data and the second-level DCI of the second data, and predefines or indicates the relationship between the resources used by the second-level DCI jointly indicating the first data and the total resources.

[0164] For example, the network device may indicate to the terminal the starting time-frequency resources and the ending frequency-frequency resources used by the second-level DCI of the first data, or indicate or predefine by the standard that the time domain resources used by the second-level DCI of the first data are 1 / 3 of the total time domain resources, as well as the starting time domain resources; indicate or predefine by the standard that the frequency domain resources used by the second-level DCI of the first data are 1 / 3 of the total frequency domain resources, as well as the starting frequency domain resources.

[0165] Method 2: The first-level DCI jointly indicates the MCS index value of the second-level DCI of the first data, and indicates or stipulates the relationship between the MCS index value of the second-level DCI of the second data and the MCS index value of the second-level DCI of the first data. For example, the MCS index value of the second-level DCI of the second data is 5 greater than the MCS index value of the second-level DCI of the first data, so that the MCS index value of the second-level DCI of the second data can be determined based on the above relationship.

[0166] The standard usually stipulates an MCS configuration table, in which each MCS index value is associated with corresponding information such as a code rate and a modulation order.

[0167] Method 3: The first-level DCI jointly indicates an MCS index table for multiple data, where each index value in the index table is used to indicate information such as the MCS index value of the second-level DCI of the corresponding first data and the MCS index value of the second-level DCI of the second data. Different MCS index values ​​of the second-level DCI of the first data correspond to different code rates and modulation schemes, and different MCS index values ​​of the second-level DCI of the second data correspond to different code rates and modulation schemes.

[0168] Alternatively, the first-level DCI jointly indicates the MCS index table of multiple data, such as each index value in the index table is used to indicate the corresponding URLLC second-level DCI code rate and modulation mode, eMBB second-level DCI code rate and modulation mode and other information.

[0169] Table 1. MCS index table for multi-data second-level DCI

[0170] 2. Use the first multiple data joint encoding method for the second control information, and the receiving end jointly decodes the second-level DCI of the first data and the second data.

[0171] 2.1. Joint Instructions:

[0172] The first-level DCI jointly indicates resource configuration information and decoding-related information for the second-level DCI of the first data and the second-level DCI of the second data. In addition, the first-level DCI is also used to jointly indicate the ratio of the information bit lengths of the second-level DCI of the first data and the second-level DCI of the second data, so that the receiving end can distinguish the information bit lengths corresponding to the second-level DCI of the first data and the second-level DCI of the second data.

[0173] Specifically, for the encoding and decoding method, the transmitting end can jointly encode the first-level DCI, the receiving end can jointly decode the first-level DCI, and can determine the information bit length corresponding to the second-level DCI of the first data and the second-level DCI of the second data.

[0174] 3. Use the second multi-data joint encoding method for the second control information, and the receiving end self-decodes the second-level DCI of the first data and jointly decodes the second-level DCI of the first data and the second data.

[0175] 3.1、Separate instructions:

[0176] The first-level DCI includes the first-level DCI of the first data and the first-level DCI of the second data, wherein the first-level DCI of the first data indicates the resource configuration information and decoding-related information of the second-level DCI of the first data; the first-level DCI of the second data indicates the resource configuration information and decoding-related information corresponding to the second-level DCI of the joint encoding of the first data and the second data.

[0177] 3.2 Joint Instructions:

[0178] Method 1: The first-level DCI jointly indicates the total time-frequency-space resources corresponding to the second-level DCI, and predefines or jointly indicates the relationship between the time-frequency-space resources used by the second-level DCI of the first data and the total time-frequency-space resources through the first-level DCI.

[0179] Method 2: The first-level DCI jointly indicates the MCS index value of the second-level DCI, and indicates or stipulates the relationship between the MCS index value of the second-level DCI for the joint encoding of the first data and the second data and the MCS index value of the second-level DCI for the first data, so that the MCS index value of the second-level DCI for the joint encoding of the first data and the second data can be determined based on the above relationship.

[0180] Method three: The first-level DCI jointly indicates the MCS index table of multiple data, such as each index value in the index table is used to indicate the MCS index value of the second-level DCI of the corresponding first data, the MCS index value of the second-level DCI for the joint encoding of the first data and the second data, or the modulation order, code rate / format and other information.

[0181] For the specific method of joint indication, please refer to the relevant description in 1.2 above and will not be repeated here.

[0182] Specifically, in a coding and decoding method, the first-level DCI of the first data includes an information portion and a coding and decoding-related information portion, and the first-level DCI of the second data includes an information portion and a coding and decoding-related information portion. The transmitting end may separately encode the first-level DCI of the first data, and jointly encode the first-level DCI of the first data and the first-level DCI of the second data. Correspondingly, the receiving end may determine the code lengths corresponding to the first-level DCI of the first data and the first-level DCI of the second data, and then separately decode the first-level DCI of the first data, and jointly decode the first-level DCI of the first data and the first-level DCI of the second data.

[0183] In the above implementation, for the first-level DCI design of the multi-data multiplexing scenario, the first-level DCI of the first data (signaling related to the second-level DCI of the first data) and the first-level DCI of the second data (signaling related to the second-level DCI of the second data) can be jointly encoded / jointly decoded, so as to realize a fixed long format of PDCCH (long format compared to the existing PDCCH format), and multiple data only need to jointly blind detect one PDCCH, and one PDCCH only needs to be jointly decoded once, thereby reducing the complexity of blind detection and reducing blind detection power consumption and delay.

[0184] In addition, in the implementation method of joint encoding of multiple data, joint decoding can be used for the first-level DCI with shorter code length among multiple data. For example, long code gain can be obtained for the first-level DCI of URLLC service. Based on the reliability requirements of the data, the coding symbols of different data can be mapped to bits with different reliabilities. For example, the first-level DCI information field of the URLLC service can be mapped to a high-reliability bit string to be encoded, thereby improving the coding reliability and reducing the decoding delay.

[0185] 2. Second Control Information (2 nd DCI)

[0186] 1. Use multiple data encoding methods for data

[0187] 1.1. Separate indication: The second-level DCI includes the second-level DCI of the first data and the second-level DCI of the second data, wherein the second-level DCI of the first data indicates scheduling information such as the time-frequency-space resources, modulation order, and code rate / format of the first data; the second-level DCI of the second data indicates scheduling information such as the time-frequency-space resources, modulation order, and code rate / format of the second data.

[0188] 1.2. Joint Indication: The second-level DCI is used to jointly indicate scheduling information such as the time-frequency-space resources, modulation order, and code rate / format of the first and second data.

[0189] 2. A first multi-data joint encoding method is used for the data, and the receiving end jointly decodes the first data and the second data.

[0190] 2.1. Joint Instructions:

[0191] The second-level DCI for the first data and the second-level DCI for the second data jointly indicate scheduling information such as the total time-frequency-space resources, modulation order, and code rate / format of the first and second data. In addition, the second-level DCI for the first data and the second-level DCI for the second data are also used to jointly indicate the ratio of the information lengths of the first and second data, so as to enable a receiving end to distinguish the information lengths of the first and second data.

[0192] Among them, the information bit mapping principle of the second-level DCI can be based on the reliability requirements of the data, mapping the coding symbols of different data to bits with different reliabilities, such as mapping the second-level DCI of the first data to a high-reliability bit string to be encoded, and mapping the second-level DCI of the second data to a low-reliability bit string to be encoded.

[0193] In the above-described embodiments of the present application, the second-level DCI for multiple data is encoded once, resulting in lower coding complexity; and the second-level DCI for multiple data is decoded once, resulting in lower decoding latency. For example, the second-level DCI for the first data and the second-level DCI for the second data are jointly decoded. This embodiment is suitable for scenarios with high reliability requirements or scenarios with average channel environments.

[0194] 3. Use the second multi-data joint encoding method for the data, and the receiving end self-decodes the first data and jointly decodes the first data and the second data.

[0195] 3.1、Separate instructions:

[0196] The second-level DCI includes the second-level DCI of the first data and the second-level DCI of the second data, wherein the second-level DCI of the first data indicates scheduling information such as the time-frequency-space resources, modulation order, and code rate / format of the first data; the second-level DCI for the joint encoding of the first data and the second data is used to indicate scheduling information such as the time-frequency-space resources, modulation order, and code rate / format of the joint encoding of the first data and the second data.

[0197] 3.2 Joint Instructions:

[0198] For the specific method of joint indication, please refer to the relevant description in 1.2 above and will not be repeated here.

[0199] Among them, the information bit mapping principle of the second-level DCI can be based on the reliability requirements of the data. For example, if the reliability requirement of the first data is higher than that of the second data, the second-level DCI of the first data can be mapped to a high-reliability bit string to be encoded, and the second-level DCI of the second data can be mapped to a low-reliability bit string to be encoded.

[0200] In addition, in the second multi-data joint encoding method, the second-level DCI of the first data includes an information domain part and an information part related to coding and decoding, and the second-level DCI of the second data includes an information domain part and an information part related to coding and decoding. The transmitting end can encode the second-level DCI of the first data separately, and jointly encode the second-level DCI of the first data and the second-level DCI of the second data.

[0201] In the above implementation, for the second-level DCI design in the multi-data multiplexing scenario, the second-level DCI with a shorter code length in the multi-data second-level DCI can adopt a joint decoding or separate decoding + joint decoding method. For example, independent decoding of the second-level DCI of the first data can reduce the decoding delay, but the reliability is low, which is suitable for scenarios with good channel environments. The joint decoding of short codes and long codes can obtain long code gain, improve the reliability of encoding and decoding, and is suitable for services with higher reliability requirements such as URLLC services.

[0202] The above content of this application provides a variety of specific implementation methods, in which the sending end and the receiving end need to determine the scheduling method and encoding method used in the current transmission period, such as whether to use the existing single-service scheduling method or the multi-data scheduling method provided in the above embodiments of this application. Further, optionally, a specific encoding and decoding method can also be indicated.

[0203] In one embodiment, the communication method provided in the present application may further include: the network device sends a first indication information to the terminal, or the network device and / or the terminal obtains the first indication information from a high layer, wherein the first indication information indicates whether to use the first control information and the second control information to jointly indicate the scheduling of multiple data. That is, if the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of multiple data, the terminal can determine that the received first control information and the second control information may include scheduling information of multiple data. If the first indication information indicates that the first control information and the second control information are not used to jointly indicate the scheduling of multiple data, that is, the scheduling of different data can be carried in different control information. For example, the first-level DCI of the first data and the first-level DCI of the second data are sent separately, and the first-level DCI of the first data and the first-level DCI of the second data are encoded / decoded separately, and the second-level DCI of the first data and the second-level DCI of the second data are sent separately, and the second-level DCI of the first data and the second-level DCI of the second data are encoded / decoded separately.

[0204] In one implementation, the first indication information may be carried in Radio Resource Control (RRC) signaling.

[0205] Further optionally, if the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of multiple user data, the method may further include: the network device sending the second indication information to the terminal, or the network device and / or the terminal obtaining the second indication information from a higher layer, wherein the second indication information indicates the encoding method of the second control information as: the first multiple data joint encoding method, the second multiple data joint encoding method, or the multiple data separate encoding method. The second indication information may be carried in higher layer signaling or physical layer signaling.

[0206] In one implementation, the second indication information may be carried in RRC signaling or first control information such as first-level DCI.

[0207] Exemplarily, the first-level DCI or RRC carries the second indication information, and the coding method for indicating the second-level DCI is:

[0208] 00 indicates the first multiple data joint coding method: the second level DCI of the first data and the second level DCI of the second data are jointly encoded and jointly decoded;

[0209] 01 indicates the second multiple data joint coding method: the second level DCI of the first data and the second level DCI of the second data are jointly encoded, the second level DCI of the first data is decoded separately, and the second level DCI of the first data and the second level DCI of the second data are jointly decoded;

[0210] 10 indicates a multiple data separate encoding method: the second-level DCI of the first data and the second-level DCI of the second data are separately encoded and separately decoded.

[0211] In the above implementation, flexible indication can be used to align the scheduling mode and encoding / decoding mode of the transmitting end and the receiving end in a multi-data multiplexing scenario, thereby improving flexibility and communication efficiency.

[0212] In addition, based on the aforementioned implementation, the receiving end also needs to determine the length of information bits transmitted in the second-level DCI for each service in the joint scheduling of multiple data multiplexing based on a standard predefined algorithm. In other words, it calculates the transport block size (TBS) corresponding to each service. The above method can also be applied to calculate the TBS of individual service data. Several TBS calculation methods are described below.

[0213] Method 1: For different services, the number of information bits corresponding to the data can be calculated based on the total number of available resource elements (REs) and the configuration of the MCS, such as the code rate and modulation order corresponding to the MCS of the second-level DCI of the first data.

[0214] Exemplarily, for the second-level DCI of the first data, the length Ninf1 of the information bits of the second-level DCI of the first data can be expressed as: Ninf1 = REs1*Q1*R1*V1. Wherein, REs1 represents the number of REs occupied by the second-level DCI of the first data, Q1 represents the modulation order corresponding to the second-level DCI of the first data, R1 represents the code rate corresponding to the second-level DCI of the first data, and V1 represents the number of layers corresponding to the second-level DCI of the first data.

[0215] Similarly, for the second-level DCI of the second data, the length Ninf2 of the information bits of the second-level DCI of the second data can be expressed as: Ninf2 = REs2*Q2*R2*V2. Wherein, Res2 represents the number of REs occupied by the second-level DCI of the second data, Q2 represents the modulation order corresponding to the second-level DCI of the second data, R2 represents the code rate corresponding to the second-level DCI of the second data, and V2 represents the number of layers corresponding to the second-level DCI of the second data.

[0216] Then, for different data, the corresponding TBS can be obtained by looking up the table based on the calculated number of information bits.

[0217] Method 2: Based on the modulation format indication information in the first-level DCI of the first data and the first-level DCI of the second data, the lengths of the information bits of the second-level DCI of the first data and the second-level DCI of the second data can be determined respectively, for example, Ninf1 and Ninf2 can be obtained.

[0218] Then, for different data, the corresponding TBS can be obtained by looking up the table based on the obtained number of information bits.

[0219] The various possible implementation methods mentioned above in this application can be combined if there is no contradiction between the solutions, and this application does not impose any restrictions on this.

[0220] The above mainly describes the solution provided by this application from the perspective of the interaction between the transmitter and receiver. Accordingly, this application also provides a communication device, which can be a terminal in the above method embodiment, or a component that can be used in a terminal; alternatively, the communication device can be a network device in the above method embodiment, or a component that can be used in a network device. It is understood that in order to implement the above functions, the above network device or terminal, etc., includes hardware structures and / or software modules corresponding to performing each function. Those skilled in the art should readily appreciate that, in combination with the various exemplary units and algorithmic operations described in the embodiments disclosed herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is implemented in hardware or in a hardware-driven manner by computer software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0221] It should be understood that the above description uses only network devices and terminals as examples to describe the interactions between various network elements. In practice, the processing performed by the terminal is not limited to being performed by a single network element, and the processing performed by the network device is not limited to being performed by a single network element. For example, the processing performed by the network device can be performed by at least one of a centralized unit (CU), a distributed unit (DU), and a RU.

[0222] This application can divide the network device or terminal into functional modules based on the above method examples. For example, each functional module can be divided according to each function, or two or more functions can be integrated into a processing module. The above integrated modules can be implemented in the form of hardware or software functional modules. It is understood that the division of modules in this application is schematic and is only a logical functional division. In actual implementation, other division methods may be used.

[0223] For example, in the case of dividing the functional modules in an integrated manner, FIG12 shows a schematic structural diagram of a communication device 1200. The communication device 1200 includes an interface module 1201.

[0224] Exemplarily, the communication device 1200 may be used to implement the functions of the terminal in the above embodiments.

[0225] The interface module 1201 is configured to receive first control information, the first control information being used to indicate the scheduling of second control information corresponding to a plurality of data, the plurality of data including at least the first data and the second data. The interface module 1201 is further configured to receive second control information, the second control information being used to indicate the scheduling of the plurality of data.

[0226] In one embodiment, the second control information includes third information and fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0227] In one embodiment, the first control information includes first information and second information, and the second control information includes third information and fourth information; part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0228] In one embodiment, the coding reliability corresponding to the bits carrying the first information is higher than the coding reliability corresponding to the bits carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

[0229] In one embodiment, the coding reliability corresponding to the bits carrying the third information is higher than the coding reliability corresponding to the bits carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that corresponding to the second data.

[0230] In one embodiment, if the first information and the second information adopt the first multi-data joint encoding method, the communication device 1200 also includes a processing module 1202 for jointly decoding according to the first information and the second information; or, if the third information and the fourth information adopt the first multi-data joint encoding method, the processing module 1202 is used to jointly decode according to the third information and the fourth information.

[0231] In one embodiment, if the third information and the fourth information adopt the second multi-data joint encoding method, the communication device 1200 also includes a processing module 1202, which is used to decode according to the third information alone, and to decode according to the third information and the fourth information jointly; or, if the first information and the second information adopt the second multi-data joint encoding method, the processing module 1202 is used to decode according to the first information alone, and to decode according to the first information and the second information jointly.

[0232] In one embodiment, the interface module 1201 is further configured to obtain first indication information, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of multiple data.

[0233] In one embodiment, if the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of multiple data, the interface module 1201 is also used to obtain the second indication information, and the second indication information indicates that the encoding method of the second control information is: the first multiple data joint encoding method, the second multiple data joint encoding method or the multiple data separate encoding method.

[0234] In one embodiment, if the third information and the fourth information adopt a multiple data separate encoding method, the communication device 1200 further includes a processing module 1202 for separately decoding according to the third information and separately decoding according to the fourth information.

[0235] In one embodiment, the first information and the second information jointly indicate information about the first resource jointly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

[0236] In one embodiment, the first information and the second information are used to jointly indicate at least one of the following information: information about the first resource jointly occupied by the third information and the fourth information; a first index value, and the first index value is used to indicate the MCS index value corresponding to the third information and / or the fourth information.

[0237] In one embodiment, the first information and the second information are also used to jointly indicate at least one of the following information: the relationship between the second resource occupied by the third information and the first resource; the relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; a first index table, the first index table including the correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

[0238] In one implementation, the first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

[0239] In addition, the communication device 1200 can also be used to implement the functions of the network device in the above embodiments.

[0240] Among them, the interface module 1201 is used to send first control information, the first control information is used to indicate the scheduling of second control information corresponding to multiple data, and the multiple data include at least first data and second data; and send second control information, the second control information is used to indicate the scheduling of multiple data.

[0241] In one embodiment, the second control information includes third information and fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0242] In one embodiment, the first control information includes first information and second information, and the second control information includes third information and fourth information; part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; wherein, part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

[0243] In one embodiment, the coding reliability corresponding to the bits carrying the first information is higher than the coding reliability corresponding to the bits carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

[0244] In one embodiment, the coding reliability corresponding to the bits carrying the third information is higher than the coding reliability corresponding to the bits carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that corresponding to the second data.

[0245] In one embodiment, if the first information and the second information adopt the first multi-data joint encoding method, the communication device 1200 also includes a processing module 1202, which is used to jointly encode the first information and the second information; or, if the third information and the fourth information adopt the first multi-data joint encoding method, the processing module 1202 is used to jointly encode the third information and the fourth information.

[0246] In one embodiment, if the third information and the fourth information adopt the second multi-data joint coding method, the communication device 1200 also includes a processing module 1202, which is used to encode separately according to the third information and to jointly encode according to the third information and the fourth information; or, if the first information and the second information adopt the second multi-data joint coding method, the processing module 1202 is used to encode separately according to the first information and to jointly encode according to the first information and the second information.

[0247] In one embodiment, the interface module 1201 is further configured to obtain first indication information, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of multiple data.

[0248] In one embodiment, if the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of multiple data, the interface module 1201 is also used to obtain the second indication information, and the second indication information indicates that the encoding method of the second control information is: the first multiple data joint encoding method, the second multiple data joint encoding method or the multiple data separate encoding method.

[0249] In one embodiment, if the third information and the fourth information adopt a multiple data separate encoding method, the communication device 1200 further includes a processing module 1202, configured to separately encode according to the third information and separately encode according to the fourth information.

[0250] In one embodiment, the first information and the second information jointly indicate information about the first resource jointly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

[0251] In one embodiment, the first information and the second information are used to jointly indicate at least one of the following information: information about the first resource jointly occupied by the third information and the fourth information; a first index value, and the first index value is used to indicate the MCS index value corresponding to the third information and / or the fourth information.

[0252] In one embodiment, the first information and the second information are also used to jointly indicate at least one of the following information: the relationship between the second resource occupied by the third information and the first resource; the relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; a first index table, the first index table including the correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

[0253] In one implementation, the first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

[0254] When the communication device 1200 is used to implement the functions of the transmitter or receiver in the above embodiments, for other functions that the communication device 1200 can implement, reference can be made to the relevant introduction of the embodiment shown in FIG8 , and no further details will be given.

[0255] In a simple embodiment, those skilled in the art may appreciate that the communication device 1200 may be in the form shown in Figure 6. For example, the processor 601 in Figure 6 may call computer-executable instructions stored in the memory 603 to enable the communication device 1200 to perform the method described in the above method embodiment.

[0256] For example, the function / implementation process of the interface module 1201 in Figure 12 can be implemented by the communication interface 604 in Figure 6. For another example, the function / implementation process of the processing module 1202 in Figure 12 can be implemented by the processor 601 in Figure 6.

[0257] It is understandable that one or more of the above modules or units can be implemented by software, hardware or a combination of the two. When any of the above modules or units is implemented by software, the software exists in the form of computer program instructions and is stored in a memory, and a processor can be used to execute the program instructions and implement the above method flow. The processor can be built into an SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip. In addition to the core used to execute software instructions to perform calculations or processing within the processor, it can further include necessary hardware accelerators, such as field programmable gate arrays (FPGAs), PLDs (programmable logic devices), or logic circuits that implement dedicated logic operations.

[0258] When the above modules or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

[0259] Optionally, the present application also provides a chip system, comprising: at least one processor and an interface, wherein the at least one processor is coupled to a memory via the interface, and when the at least one processor executes a computer program or instruction in the memory, the method in any of the above method embodiments is executed. In one possible implementation, the chip system also includes a memory. Optionally, the chip system can be composed of a chip, or can include a chip and other discrete devices, which is not specifically limited in this application.

[0260] Optionally, the present application also provides a computer-readable storage medium. All or part of the processes in the above-mentioned method embodiments can be completed by a computer program to instruct the relevant hardware. The program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be an internal storage unit of the communication device of any of the above-mentioned embodiments, such as a hard disk or memory of the communication device. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned communication device, such as a plug-in hard disk, a smart memory card (smart media card, SMC), a secure digital (secure digital, SD) card, a flash card (flash card), etc. equipped on the above-mentioned communication device. Furthermore, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned communication device and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned communication device. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0261] Optionally, the present application also provides a computer program product. All or part of the processes in the above method embodiments may be completed by a computer program instructing related hardware. The program may be stored in the above computer program product, and when executed, the program may include the processes in the above method embodiments.

[0262] Optionally, the present application also provides a computer instruction. All or part of the process in the above method embodiment can be completed by the computer instruction to instruct the relevant hardware (such as a computer, processor, network device or terminal, etc.). The program can be stored in the above computer-readable storage medium or in the above computer program product.

[0263] Optionally, the present application also provides a communication system, including: the network device and terminal in the above embodiments.

[0264] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0265] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the modules or units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0266] The units described as separate components may or may not be physically separate, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple places. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0267] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0268] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: receiving first control information, where the first control information is used to indicate scheduling of second control information corresponding to a plurality of data, where the plurality of data at least includes first data and second data; Second control information is received, where the second control information is used to indicate scheduling of the multiple data.

2. The method according to claim 1, characterized in that The second control information includes third information and fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

3. The method according to claim 1 or 2, characterized in that: The first control information includes first information and second information, and the second control information includes third information and fourth information; Part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, Part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

4. The method according to claim 3, characterized in that The coding reliability corresponding to the bit carrying the first information is higher than the coding reliability corresponding to the bit carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

5. The method according to claim 2 or 3, characterized in that: The coding reliability corresponding to the bit carrying the third information is higher than the coding reliability corresponding to the bit carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

6. The method according to claim 3 or 4, characterized in that: If the first information and the second information adopt a first multiple data joint encoding method, the method further includes: Jointly decode according to the first information and the second information; or, If the third information and the fourth information adopt the first multiple data joint encoding method, the method further includes: The third information and the fourth information are jointly decoded.

7. The method according to claim 2 or 3, characterized in that: If the third information and the fourth information adopt a second multiple data joint encoding method, the method further includes: Decode according to the third information alone, or decode according to the third information and the fourth information together; or If the first information and the second information adopt a second multiple data joint encoding method, the method further includes: The first information is decoded separately, and the first information and the second information are decoded jointly.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: First indication information is obtained, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of the multiple data.

9. The method according to claim 8, characterized in that If the first indication information indicates that the first control information and the second control information are used to jointly indicate scheduling of the multiple data, the method further includes: Second indication information is obtained, where the second indication information indicates that a coding method of the second control information is: a first multiple data joint coding method, a second multiple data joint coding method, or a multiple data separate coding method.

10. The method according to claim 9, characterized in that If the third information and the fourth information adopt the multiple data separate encoding method, the method further includes: The third information is decoded separately, and the fourth information is decoded separately.

11. The method according to any one of claims 3 to 5, characterized in that: The first information and the second information jointly indicate information about the first resource commonly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

12. The method according to any one of claims 3 to 5, characterized in that: The first information and the second information are used to jointly indicate at least one of the following information: Information of the first resource jointly occupied by the third information and the fourth information; A first index value, where the first index value is used to indicate an MCS index value corresponding to the third information and / or the fourth information.

13. The method according to claim 12, characterized in that The first information and the second information are further used to jointly indicate at least one of the following information: The relationship between the second resource occupied by the third information and the first resource; A relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; The first index table includes a correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

14. The method according to any one of claims 1 to 13, characterized in that: The first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

15. A communication method, characterized in that: The method comprises: Sending first control information, where the first control information is used to indicate scheduling of second control information corresponding to a plurality of data, where the plurality of data at least includes the first data and the second data; Second control information is sent, where the second control information is used to indicate the scheduling of the multiple data.

16. The method according to claim 15, characterized in that The second control information includes third information and fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

17. The method according to claim 15 or 16, characterized in that The first control information includes first information and second information, and the second control information includes third information and fourth information; Part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, Part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

18. The method according to claim 17, characterized in that The coding reliability corresponding to the bit carrying the first information is higher than the coding reliability corresponding to the bit carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

19. The method according to claim 16 or 17, characterized in that The coding reliability corresponding to the bit carrying the third information is higher than the coding reliability corresponding to the bit carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

20. The method according to claim 17 or 18, characterized in that If the first information and the second information adopt a first multiple data joint encoding method, the method further includes: Jointly encode according to the first information and the second information; or, If the third information and the fourth information adopt the first multiple data joint encoding method, the method further includes: The third information and the fourth information are jointly encoded.

21. The method according to claim 16 or 17, characterized in that If the third information and the fourth information adopt a second multiple data joint encoding method, the method further includes: Encode according to the third information alone, or jointly encode according to the third information and the fourth information; or If the first information and the second information adopt a second multiple data joint encoding method, the method further includes: The first information is encoded separately, and the first information and the second information are jointly encoded.

22. The method according to any one of claims 15 to 21, characterized in that: The method further comprises: First indication information is obtained, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of the multiple data.

23. The method according to claim 22, characterized in that If the first indication information indicates that the first control information and the second control information are used to jointly indicate scheduling of the multiple data, the method further includes: Second indication information is obtained, where the second indication information indicates that a coding method of the second control information is: a first multiple data joint coding method, a second multiple data joint coding method, or a multiple data separate coding method.

24. The method according to claim 23, characterized in that If the third information and the fourth information adopt the multiple data separate encoding method, the method further includes: The third information is separately encoded, and the fourth information is separately encoded.

25. The method according to any one of claims 17 to 19, characterized in that: The first information and the second information jointly indicate information about the first resource commonly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

26. The method according to any one of claims 17 to 19, characterized in that: The first information and the second information are used to jointly indicate at least one of the following information: Information of the first resource jointly occupied by the third information and the fourth information; A first index value, where the first index value is used to indicate an MCS index value corresponding to the third information and / or the fourth information.

27. The method according to claim 26, characterized in that The first information and the second information are further used to jointly indicate at least one of the following information: The relationship between the second resource occupied by the third information and the first resource; A relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; The first index table includes a correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

28. The method according to any one of claims 15 to 27, characterized in that: The first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

29. A communication device, characterized in that: The communication device includes an interface module, configured to receive first control information, wherein the first control information is used to indicate scheduling of second control information corresponding to a plurality of data, wherein the plurality of data includes at least first data and second data; The interface module is further used to receive second control information, where the second control information is used to indicate the scheduling of the multiple data.

30. The device according to claim 29, characterized in that The second control information includes third information and fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

31. The device according to claim 29 or 30, characterized in that The first control information includes first information and second information, and the second control information includes third information and fourth information; Part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, Part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

32. The device according to claim 31, characterized in that The coding reliability corresponding to the bit carrying the first information is higher than the coding reliability corresponding to the bit carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

33. The device according to claim 30 or 31, characterized in that The coding reliability corresponding to the bit carrying the third information is higher than the coding reliability corresponding to the bit carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

34. The device according to claim 31 or 32, characterized in that If the first information and the second information adopt a first multiple data joint encoding method, the device further includes a processing module, configured to jointly decode the first information and the second information; or, If the third information and the fourth information adopt the first multiple data joint encoding method, the processing module is used for joint decoding according to the third information and the fourth information.

35. The device according to claim 30 or 31, characterized in that If the third information and the fourth information adopt the second multiple data joint encoding method, the device further includes a processing module, which is used to decode according to the third information alone and to decode according to the third information and the fourth information jointly; or, If the first information and the second information adopt the second multiple data joint encoding method, the processing module is used to decode according to the first information alone, and to decode according to the first information and the second information jointly.

36. The device according to any one of claims 29 to 35, characterized in that The interface module is further used to obtain first indication information, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of the multiple data.

37. The device according to claim 36, characterized in that If the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of the multiple data, the device also includes a processing module for obtaining second indication information, and the second indication information indicates that the encoding method of the second control information is: a first multiple data joint encoding method, a second multiple data joint encoding method, or a multiple data separate encoding method.

38. The device according to claim 37, characterized in that If the third information and the fourth information adopt the multiple data separate encoding method, the device further includes a processing module for separate decoding according to the third information and separate decoding according to the fourth information.

39. The device according to any one of claims 31 to 33, characterized in that The first information and the second information jointly indicate information about the first resource commonly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

40. The device according to any one of claims 31 to 33, characterized in that The first information and the second information are used to jointly indicate at least one of the following information: Information of the first resource jointly occupied by the third information and the fourth information; A first index value, where the first index value is used to indicate an MCS index value corresponding to the third information and / or the fourth information.

41. The device according to claim 40, characterized in that The first information and the second information are further used to jointly indicate at least one of the following information: The relationship between the second resource occupied by the third information and the first resource; A relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; The first index table includes a correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

42. The device according to any one of claims 29 to 41, characterized in that The first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

43. A communication device, characterized in that: The communication device includes an interface module, configured to send first control information, wherein the first control information is used to indicate scheduling of second control information corresponding to a plurality of data, wherein the plurality of data includes at least first data and second data; The interface module is further used to send second control information, where the second control information is used to indicate the scheduling of the multiple data.

44. The device according to claim 43, characterized in that The second control information includes third information and fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

45. The device according to claim 43 or 44, characterized in that The first control information includes first information and second information, and the second control information includes third information and fourth information; Part or all of the first information is used to indicate the scheduling of the third information, and part or all of the second information is used to indicate the scheduling of the fourth information; or, Part or all of the first information and the second information are used to jointly indicate the scheduling of the third information, and part or all of the first information and the second information are used to jointly indicate the scheduling of the fourth information; Part or all of the third information is used to indicate the scheduling corresponding to the first data, and part or all of the fourth information is used to indicate the scheduling corresponding to the second data; or, Part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the first data, and part or all of the third information and the fourth information are used to jointly indicate the scheduling corresponding to the second data.

46. ​​The device according to claim 45, characterized in that The coding reliability corresponding to the bit carrying the first information is higher than the coding reliability corresponding to the bit carrying the second information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

47. The device according to claim 43 or 44, characterized in that The coding reliability corresponding to the bit carrying the third information is higher than the coding reliability corresponding to the bit carrying the fourth information, wherein the reliability requirement corresponding to the first data is higher than that of the second data.

48. The device according to claim 45 or 46, characterized in that If the first information and the second information adopt a first multiple data joint encoding method, the device further includes a processing module, configured to jointly encode according to the first information and the second information; or, If the third information and the fourth information adopt the first multiple data joint encoding method, the processing module is used for joint encoding according to the third information and the fourth information.

49. The device according to claim 43 or 44, characterized in that If the third information and the fourth information adopt the second multiple data joint encoding method, the device further includes a processing module, configured to encode according to the third information alone, and to jointly encode according to the third information and the fourth information; or, If the first information and the second information adopt a second multiple data joint encoding method, the processing module is used to encode according to the first information alone, and to jointly encode according to the first information and the second information.

50. The device according to any one of claims 43 to 49, characterized in that The interface module is further used to obtain first indication information, where the first indication information indicates whether to use the first control information and the second control information to jointly indicate scheduling of the multiple data.

51. The device according to claim 50, characterized in that If the first indication information indicates the use of the first control information and the second control information to jointly indicate the scheduling of the multiple data, the interface module is also used to obtain second indication information, and the second indication information indicates that the encoding method of the second control information is: the first multiple data joint encoding method, the second multiple data joint encoding method or the multiple data separate encoding method.

52. The device according to claim 51, characterized in that If the third information and the fourth information adopt the multiple data separate encoding method, the device further includes a processing module, which is used to separate encoding according to the third information and separate encoding according to the fourth information.

53. The device according to any one of claims 45 to 47, characterized in that The first information and the second information jointly indicate information about the first resource commonly occupied by the third information and the fourth information, and a ratio of a code length corresponding to the third information to a code length corresponding to the fourth information.

54. The device according to any one of claims 45 to 47, characterized in that The first information and the second information are used to jointly indicate at least one of the following information: Information of the first resource jointly occupied by the third information and the fourth information; A first index value, where the first index value is used to indicate an MCS index value corresponding to the third information and / or the fourth information.

55. The device according to claim 54, characterized in that The first information and the second information are further used to jointly indicate at least one of the following information: The relationship between the second resource occupied by the third information and the first resource; A relationship between the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information; The first index table includes a correspondence between multiple index values ​​and the MCS index value corresponding to the third information and the MCS index value corresponding to the fourth information.

56. The device according to any one of claims 43 to 55, characterized in that The first control information is carried in first-level downlink control information DCI, and the second control information is carried in second-level DCI.

57. A communication device, characterized in that: include: A processor, wherein the processor is coupled to a memory, wherein the memory is used to store programs or instructions, and when the programs or instructions are executed by the processor, the device executes the method according to any one of claims 1 to 14.

58. A communication device, characterized in that: include: A processor, wherein the processor is coupled to a memory, wherein the memory is used to store programs or instructions, and when the programs or instructions are executed by the processor, the device executes the method according to any one of claims 15 to 28.

59. A computer-readable storage medium having a computer program or instruction stored thereon, characterized in that: When the computer program or instructions are executed, the computer performs the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 28.

60. A computer program product, comprising computer program code, characterized in that: When the computer program code is executed on a computer, the computer is enabled to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 28.

61. A communication system, characterized in that: The communication system comprises a communication device according to any one of claims 29-42 and a communication device according to any one of claims 43-56.

Images