Communication method, apparatus, and computer-readable storage medium

Abstract

The present application relates to the technical field of wireless communications. Provided are a communication method, an apparatus, and a computer-readable storage medium. The method comprises: generating first instruction information and second instruction information, the first instruction information being used for instructing a first terminal device to use a first spectrum resource of a first TDD cell during uplink communication and to use a first sub-spectrum resource in the first spectrum resource during downlink communication, the second instruction information being used for instructing a second terminal device to use a second spectrum resource of an SUL cell during uplink communication and to use a second sub-spectrum resource during downlink communication, the second sub-spectrum resource being a spectrum resource in the first spectrum resource other than the first sub-spectrum resource, and a frequency band range of the first TDD cell comprising a frequency band range of a second TDD cell; and sending the first instruction information and the second instruction information. In this way, the present application uses both the spectrum resources of the first TDD cell and the second TDD cell partitioned on a TDD carrier, thereby avoiding the problem of resource waste in the related art.

Description

Communication method, apparatus and computer readable storage medium

[0001] The present application claims priority from the Chinese patent application No. 202410678690.X filed on May 28, 2024, and entitled "A communication method, apparatus and computer readable storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of wireless communication, and in particular to a communication method, apparatus and computer readable storage medium. BACKGROUND

[0003] With the rapid development of communication technology, the requirements for wireless communication networks are also increasing. In particular, in some key business scenarios such as industrial automation, remote medical care, intelligent transportation, etc., there are very high requirements for the latency and reliability of communication. These businesses are referred to as ultra-reliable and low latency communications (URLLC) businesses. In order to meet the needs of URLLC businesses, the current combination scheme of time division duplexing (TDD) carrier and supplementary uplink (SUL) carrier is adopted. The TDD carrier is mainly responsible for the downlink communication of the URLLC business, and the SUL carrier is responsible for the uplink communication of the URLLC business. This design combines the advantages of TDD and SUL carriers, effectively meeting the communication needs of URLLC businesses.

[0004] For the scenario where URLLC businesses and non-URLLC businesses coexist, the current scheme is to "divide cells and spectrums". Specifically, the TDD carrier is hard divided into two cells, which are TDD cell 1 and TDD cell 2. Among them, the uplink and downlink communications of non-URLLC businesses use the spectrum resources of TDD cell 1; while the uplink communication of URLLC businesses uses the spectrum resources of SUL cell, and the downlink communication uses the spectrum resources of TDD cell 2. In this way, the uplink spectrum resources of TDD cell 2 are not used, and there is a problem of resource waste. SUMMARY

[0005] The present application provides a communication method, apparatus and computer readable storage medium, which solves the problem of resource waste when URLLC businesses and non-URLLC businesses coexist in the related art, and improves the resource utilization.

[0006] In a first aspect, a communication method is provided. The method comprises: generating first indication information and second indication information, the first indication information being used to indicate that a first terminal device uses a first spectrum resource of a first time division duplex (TDD) cell in uplink communication and uses a first sub-spectrum resource in the first spectrum resource in downlink communication, and the second indication information being used to indicate that a second terminal device uses a second spectrum resource of a second TDD cell in uplink communication and uses a second sub-spectrum resource in the first spectrum resource in downlink communication, wherein the first spectrum resource is a full spectrum resource of the first TDD cell, the second sub-spectrum resource is a spectrum resource in the first spectrum resource except the first sub-spectrum resource, the second TDD cell and the first TDD cell are in the same coverage, and a frequency band range of the first TDD cell includes a frequency band range of the second TDD cell; and sending the first indication information to the first terminal device and sending the second indication information to the second terminal device, the first terminal device being a terminal device accessing the first TDD cell, and the second terminal device being a terminal device accessing the second TDD cell and a supplementary uplink (SUL) cell.

[0007] The first TDD cell and the second TDD cell can be understood as two cells established by a TDD spectrum, and a bandwidth of the first TDD cell is greater than a bandwidth of the second TDD cell. The spectrum resource of the second TDD cell is a part of the spectrum resource of the first TDD cell.

[0008] In a feasible implementation, the network device can generate the first indication information and the second indication information according to current service demand information. In this way, the accuracy of the generated indication information is improved, and the accuracy of resource scheduling is further improved.

[0009] The first terminal device can be a user terminal of a non-URLLC service, or the first terminal device can be a user terminal of a URLLC service. The first terminal device accesses the first TDD cell, and the second terminal device accesses the second TDD cell and the SUL cell.

[0010] The bandwidth of the second TDD cell and the bandwidth of the second sub-spectrum resource can be the same.

[0011] In a feasible implementation, the bandwidth of the second TDD cell is the same as the bandwidth of the second sub-spectrum resource.

[0012] The first terminal device can only access the first TDD cell, and the first terminal device is rejected by the network device when attempting to access the second TDD cell and the SUL cell. The second terminal device can only access the second TDD cell and the SUL cell, and the second terminal device is rejected by the network device when attempting to access the first TDD cell.

[0013] In a possible implementation, the bandwidth of the second TDD cell is the bandwidth of the second sub-spectrum resource.

[0014] In a possible implementation, the sending of the first indication information to the first terminal device and the sending of the second indication information to the second terminal device can be implemented in the following manner:

[0015] Manner one, the first DCI is sent to the first terminal device, and the second DCI is sent to the second terminal device, wherein the first DCI includes the first indication information, and the second DCI includes the second indication information.

[0016] Manner two, the first RRC signaling is sent to the first terminal device, and the second RRC signaling is sent to the second terminal device, wherein the first RRC signaling includes the first indication information, and the second RRC signaling includes the second indication information.

[0017] Manner three, the third DCI is sent to the first terminal device, and the fourth DCI is sent to the second terminal device, wherein the third DCI includes the first indication information, and the fourth DCI includes the second indication information, the third DCI is used to activate the first spectrum resource of the first terminal device in uplink communication and the first sub-spectrum resource in downlink communication; and the fourth DCI is used to activate the second spectrum resource of the second terminal device in uplink communication and the second sub-spectrum resource in downlink communication.

[0018] In the manner three, before the third DCI is sent to the first terminal device and the fourth DCI is sent to the second terminal device, the third RRC signaling is sent to the first terminal device, and the fourth RRC signaling is sent to the second terminal device, wherein the third RRC signaling is used to configure the first spectrum resource of the first terminal device in uplink communication and the first sub-spectrum resource in downlink communication, and the fourth RRC signaling is used to configure the second spectrum resource of the second terminal in uplink communication and the second sub-spectrum resource in downlink communication.

[0019] The above scheme uses any one of the three manners to indicate the spectrum resources used by the first terminal device in uplink communication and downlink communication respectively, and to indicate the spectrum resources used by the second terminal device in uplink communication and downlink communication respectively, so that the first terminal device and the second terminal device can reasonably use the spectrum resources of the first TDD cell and the spectrum resources of the second TDD cell, improve the utilization rate of the spectrum resources, and solve the problem of resource waste in the related art.

[0020] Through the communication method provided in the present application, the spectrum resources of the first TDD cell and the second TDD cell divided on the TDD carrier are all used, the resource utilization rate is improved, and the problem of resource waste in the related art is avoided.

[0021] In a second aspect, a communication method is provided. The method can be performed by a first terminal device, or by a component (e.g., a processor, a chip, or a chip system, etc.) of the first terminal device, or by a logic module or software that can implement all or part of the functions of the first terminal device.

[0022] The method includes: receiving first indication information from a network device, the first indication information being used to indicate that the first terminal device uses first spectrum resources of a first TDD cell in uplink communication, and uses first sub-spectrum resources of the first spectrum resources in downlink communication, the first spectrum resources being all spectrum resources of the first TDD cell; and performing communication with the network device based on the first indication information.

[0023] According to the communication method provided in the present application, the first terminal device can use the spectrum resources of the full frequency band on the TDD carrier in uplink communication, thereby avoiding waste of spectrum resources and improving resource utilization. The problem of resource waste in the related art is solved.

[0024] In a feasible implementation manner, the first indication information from the network device can be received in one of the following manners:

[0025] Manner one: first radio resource control (RRC) signaling from the network device is received, and the first RRC signaling includes the first indication information.

[0026] Manner two: first downlink control information (DCI) from the network device is received, and the first DCI includes the first indication information.

[0027] Manner three: third DCI from the network device is received, and the third DCI is used to activate the first spectrum resources of the first terminal device in uplink communication and the first sub-spectrum resources in downlink communication.

[0028] Before the third DCI from the network device is received in the manner three, third RRC signaling from the network device is further received, and the third RRC signaling is used to configure the first spectrum resources of the first terminal device in uplink communication and the first sub-spectrum resources in downlink communication.

[0029] The beneficial effects of the implementation manners of the second aspect can be referred to the description of the first aspect, and will not be described herein.

[0030] In a third aspect, a communication method is provided. The method can be performed by a second terminal device, or by a component (e.g., a processor, a chip, or a chip system, etc.) of the second terminal device, or by a logic module or software that can implement all or part of the functions of the second terminal device.

[0031] The method comprises: receiving second indication information from the network device, the second indication information being used to indicate that the second terminal device uses the second spectrum resource of the SUL cell in uplink communication and uses the second sub-spectrum resource of the first TDD cell in downlink communication, the second sub-spectrum resource being part of the spectrum resource of the first TDD cell, the second TDD cell and the first TDD cell being in the same coverage, and the frequency band range of the first TDD cell including the frequency band range of the second TDD cell; and performing communication with the network device based on the second indication information.

[0032] In a possible implementation, the bandwidth of the second TDD cell is the bandwidth of the second sub-spectrum resource.

[0033] In a possible implementation, the receiving of the second indication information from the network device can be implemented in one of the following manners:

[0034] Manner one: receiving second radio resource control (RRC) signaling from the network device, the second RRC signaling including the second indication information.

[0035] Manner two: receiving second downlink control information (DCI) from the network device, the second DCI including the second indication information.

[0036] Manner three: receiving fourth DCI from the network device, the fourth DCI being used to activate the second spectrum resource in uplink communication and the second sub-spectrum resource in downlink communication of the second terminal device.

[0037] Before the receiving of the fourth DCI from the network device in the manner three, the method further comprises: receiving fourth RRC signaling from the network device, the fourth RRC signaling being used to configure the second spectrum resource in uplink communication and the second sub-spectrum resource in downlink communication of the second terminal device.

[0038] In a fourth aspect, a communication apparatus is provided, which includes a module or unit for performing the method in the first aspect or any possible implementation manner of the first aspect.

[0039] In a fifth aspect, a communication apparatus is provided, which includes a module or unit for performing the method in the second aspect or any possible implementation manner of the second aspect, or a module or unit for performing the method in the third aspect or any possible implementation manner of the third aspect.

[0040] In a sixth aspect, a communication apparatus is provided, which includes a processor and a memory coupled to the processor, the memory being used to store a computer program or instructions, and the processor being used to execute the computer program or instructions stored in the memory to implement the method in the first aspect or any possible implementation manner of the first aspect.

[0041] In a possible implementation, the apparatus further includes a memory coupled with the processor.

[0042] In a possible implementation, the processor is one or more, and / or the memory is one or more.

[0043] In a possible implementation, the memory can be integrated with the processor, or the memory is disposed separately from the processor.

[0044] In a possible implementation, the apparatus further includes a communication interface, and the processor is coupled with the communication interface.

[0045] In an implementation, the apparatus is a network device. Illustratively, the communication interface can be a transceiver, or an input / output interface.

[0046] In another implementation, the apparatus is a chip in a first communication apparatus. Illustratively, the communication interface can be an input / output interface.

[0047] In a seventh aspect, a communication apparatus is provided, including a processor and a memory coupled with the processor, the memory being configured to store a computer program or instructions, and the processor being configured to execute the computer program or instructions stored in the memory to implement the method in the second aspect or any possible implementation of the second aspect, or implement the method in the third aspect or any possible implementation of the third aspect.

[0048] In a possible implementation, the apparatus further includes a memory coupled with the processor.

[0049] In a possible implementation, the processor is one or more, and / or the memory is one or more.

[0050] In a possible implementation, the memory can be integrated with the processor, or the memory is disposed separately from the processor.

[0051] In a possible implementation, the apparatus further includes a communication interface, and the processor is coupled with the communication interface.

[0052] In an implementation, the apparatus is a terminal. Illustratively, the communication interface can be a transceiver, or an input / output interface.

[0053] In another implementation, the apparatus is a chip in a second communication apparatus. Illustratively, the communication interface can be an input / output interface.

[0054] In an eighth aspect, a processor is provided, including an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method in any one of the aspects or any possible implementation manner of the aspects.

[0055] In a specific implementation process, the processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a flip-flop, and various logic circuits. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, the signal output by the output circuit can be output to and transmitted by, for example but not limited to, a transmitter, and the input circuit and the output circuit can be the same circuit, which is used as the input circuit and the output circuit at different times. The specific implementation of the processor and various circuits is not limited in the present application.

[0056] In a ninth aspect, a communication system is provided, including at least one of the communication apparatus provided in the fourth aspect, the communication apparatus provided in the fifth aspect, and the communication apparatus provided in the sixth aspect.

[0057] In a tenth aspect, a computer program product is provided, including a computer program (which can also be referred to as code or instructions), which, when executed by a computer, causes the computer to perform the method in any one of the aspects or any possible implementation manner of the aspects.

[0058] In an eleventh aspect, a computer-readable storage medium is provided, which stores a computer program (which can also be referred to as code or instructions), which, when executed by a computer, causes the computer to perform the method in any one of the aspects or any possible implementation manner of the aspects.

[0059] In a twelfth aspect, a chip is provided, including a processor configured to call and execute a computer program from a memory, so that a communication apparatus installed with the chip performs the method in any one of the aspects or any possible implementation manner of the aspects.

[0060] In a thirteenth aspect, a communication apparatus is provided, including an interface configured to transmit and / or receive a signal, and a processor configured to perform the method in any one of the aspects or any possible implementation manner of the aspects. BRIEF DESCRIPTION OF DRAWINGS

[0061] FIG. 1 is a schematic diagram of an architecture of a mobile communication system according to an embodiment of the present application;

[0062] FIG. 2 is a schematic diagram of spectrum resource usage in related art according to an embodiment of the present application;

[0063] Figure 3 is a schematic diagram of a cell to which the communication method provided by the present application is applied;

[0064] Figure 4 is a schematic diagram of the use of cell frequency spectrum resources by different services in the communication method provided by the embodiment of the present application;

[0065] Figure 5 is a schematic diagram of the flow of a communication method provided by the embodiment of the present application;

[0066] Figure 6 is a schematic diagram of the use of carriers by two TDD cells in the communication method provided by the embodiment of the present application;

[0067] Figure 7 is a schematic block diagram of a communication device provided by the embodiment of the present application;

[0068] Figure 8 is a schematic block diagram of another communication device provided by the embodiment of the present application;

[0069] Figure 9 is a schematic diagram of the structure of a terminal device provided by the present application;

[0070] Figure 10 is a schematic diagram of the structure of a network device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0071] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0072] In the description of the present application, unless otherwise specified, " / " represents that the objects before and after the " / " are in an "or" relationship, for example, A / B can represent A or B; "and / or" in the present application is merely a description of the association relationship of the associated objects, and represents that there can be three relationships, for example, A and / or B can represent: A alone, A and B together, and B alone, where A and B can be singular or plural. In addition, in the description of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, "first", "second", and the like are used to distinguish the same items or similar items with basically the same function and effect. Those skilled in the art can understand that "first", "second", and the like do not limit the quantity and execution order, and "first", "second", and the like do not necessarily mean different.

[0073] In the method embodiments of the present application, the size of the serial number does not mean the order of execution, and the execution order should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0074] It can be understood that in the present application, "in the case of", "if", "when", "if" and the like can be used instead. And these descriptions all mean that under certain objective conditions, the corresponding processing will be done, not limited by time, and also does not require judgment action when implemented, nor does it mean that there are other limitations.

[0075] It can be understood that in the present application, "greater than or equal to" can be replaced by "greater than", and correspondingly, "less than" can also be replaced by "less than or equal to".

[0076] It can be understood that some optional features in the embodiments of the present application can be implemented independently in some scenarios without relying on other features, such as the scheme currently based on, to solve the corresponding technical problems and achieve the corresponding effects. Also, in some scenarios, it can be combined with other features according to demand. Correspondingly, the devices given in the embodiments of the present application can also realize these features or functions, which will not be described here.

[0077] In the present application, except for special description, the same or similar parts of each embodiment can be mutually referred. In the embodiments of the present application, and each implementation / implementation method / realization method in each embodiment, if there is no special description and no logical conflict, the terms and / or descriptions of different embodiments, and each implementation / implementation method / realization method in each embodiment are consistent and can be mutually referred. The technical features of different embodiments, and each implementation / implementation method / realization method in each embodiment can be combined to form new embodiments, implementations, implementation methods, or realization methods according to their internal logical relationship. The following embodiments of the present application do not constitute a limitation on the protection scope of the present application.

[0078] The embodiments of the present application can be applied to various communication systems, such as long term evolution (LTE) system, 5th generation (5G) mobile communication system, new radio (NR), and other mobile communication systems that may appear in the future.

[0079] FIG. 1 is a schematic diagram of an architecture of a mobile communication system according to an embodiment of the present application. As shown in FIG. 1, the system 100 includes at least two terminal devices (e.g., a first terminal device 110 and a second terminal device 120 shown in FIG. 1) and at least one communication apparatus (e.g., the communication apparatus can be a network device 130). The first terminal device 110 and the second terminal device 120 can communicate with the network device 130 through a wireless connection. It should be understood that the system shown in FIG. 1 can also include more terminal devices and network devices.

[0080] The terminal device in the embodiments of the present application, also referred to as a user equipment (UE), a terminal, a mobile station (MS), a mobile terminal (MT), a terminal device, a wireless device, etc., refers to a device that provides voice and / or data connectivity to a user. For example, the terminal device can be a mobile phone, a tablet computer, a notebook computer, a palm computer, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a haptic terminal device, a vehicle-mounted terminal device, a wireless terminal in self driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The terminal device in the embodiments of the present application can be a whole vehicle, or a vehicle-mounted module, an on board unit (OBU), a vehicle-mounted chip, a vehicle machine module, a telematics box (T-box), a roadside unit (RSU), etc.

[0081] The network device in the embodiments of the present application, for example, the network device 130, refers to a radio access network (RAN) node (or device) that accesses a terminal device to a wireless network, which can also be referred to as a base station or an access network device. For example, the network device can be an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, an access node (AP) in a WiFi system, a wireless controller in a cloud radio access network (CRAN) scenario, a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in other future evolved communication systems, and the like.

[0082] In a possible scenario, a terminal device is assisted by multiple RAN nodes to implement wireless access in cooperation, and different RAN nodes respectively implement part of the functions of a base station. For example, a RAN node (i.e., a network device in this application) can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, for example, in a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, for example, in a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH). In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an open radio access network (ORAN) system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. It should be understood that the specific technology and specific device form of the network device are not limited in this application.

[0083] In the embodiments of the present application, the terminal or network device includes a hardware layer, an operating system layer running above the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also referred to as a main memory). The operating system can be any one or more computer operating systems that implement service processing through a process, for example, a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, word processing software, and instant messaging software. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided by the embodiments of the present application, as long as the execution subject can communicate according to the method provided by the embodiments of the present application by running a program in which the code of the method provided by the embodiments of the present application is recorded.

[0084] In addition, various aspects or features of the disclosure can be realized as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in the disclosure is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., compact disk (CD), digital versatile disk (DVD), etc.), smart cards, and flash memory devices (e.g., EPROM, card, stick, or key drive, etc.). Additionally, various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction(s) and / or data.

[0085] The following first briefly introduces some terms or concepts involved in the present application.

[0086] Parity Low Latency Cell: parity low latency cell or symmetric low latency cell.

[0087] Ultra-reliable and low latency communications (URLLC) is one of the three major scenarios defined by the 3rd generation partnership project (3GPP) for the 5th generation mobile communication technology (5G). It is mainly used in scenarios such as industrial applications that have extremely high requirements for latency and reliability.

[0088] Time division duplexing (TDD) is a duplexing method for communication systems, used in mobile communication systems to separate receive and transmit channels (or uplink and downlink). In a TDD system, uplink and downlink transmissions are performed in different time intervals.

[0089] TDD carrier: allows transmission and reception of signals in the same frequency band but in different time slots.

[0090] Supplementary uplink (SUL) is a function defined by 3GPP to configure a SUL carrier for the primary carrier to expand uplink transmission.

[0091] Cell (Cell) usually refers to a specific geographic area covered by a single base station (such as eNodeB or gNodeB), in which wireless signals are transmitted through a specific frequency band and time slot. A cell can be configured with different parameters such as frequency bandwidth, time slot allocation, etc. to support different services and user needs.

[0092] Enhanced mobile broadband (eMBB) is one of the three major application scenarios of 5G. It mainly focuses on providing high-speed, large-bandwidth mobile communication services to meet users' demand for high-speed data services such as high-definition video and large file transmission.

[0093] The following explains the relevant background related to the present application.

[0094] With the rapid development of communication technology, the requirements for wireless communication network are increasing, and multiple services coexist as a trend of service development. URLLC service needs to rely on uplink and downlink decoupling technology, and combines TDD downlink carrier and SUL uplink carrier to realize short delay. Among them, the user of non-URLLC service can be eMBB user, and the user of URLLC service can be the user with 8ms delay requirement. In order to meet the needs of URLLC service and non-URLLC service, the combination scheme of TDD carrier and SUL carrier is adopted at present. The following describes the combination scheme in combination with FIG. 2.

[0095] As shown in FIG. 2, a 100M TDD cell is hard split into a 40M bandwidth TDD cell 1 and a 60M bandwidth TDD cell 2 on the frequency spectrum. Among them, the uplink communication and downlink communication of non-URLLC service use the frequency spectrum resource of TDD cell 1, the downlink communication of URLLC service uses the downlink frequency spectrum resource of TDD cell 2, and the uplink communication of URLLC service uses the frequency spectrum resource of SUL cell. In this way, the uplink frequency spectrum resource of TDD cell 2 is not used, causing resource waste. Among them, the resource waste depends on the bandwidth configuration ratio of TDD cell 1 and TDD cell 2.

[0096] Based on this, the embodiment of the present application provides a communication method, which is different from the scheme of hard splitting on the frequency spectrum in the related art. In the present scheme, the sub-cell frequency spectrum sharing mode is adopted to realize the "Parity low latency cell" equal low latency cell, avoid the waste of frequency spectrum resource, improve the resource utilization efficiency, solve the problem of resource waste in the related art. The URLLC service is provided with more efficient and reliable service. Moreover, the performance and stability of the whole network can be improved, and the increasing demand for low latency and high reliability service can be met.

[0097] For example, FIG. 3 is a schematic diagram of a cell applying the communication method provided by the present application. As shown in FIG. 3, it contains three cells, which are 100M TDD cell 1, 60M TDD cell 2 and 60M SUL cell. The 100M TDD cell 1 and the 60M TDD cell 2 are the same coverage. The frequency band range of the 100M TDD cell 1 includes the frequency band range of the 60M TDD cell 2, that is, the 100M TDD cell 1 and the 60M TDD cell 2 share the frequency spectrum, and the frequency spectrum resource of the 100M TDD cell 1 includes the frequency spectrum resource of the 60M TDD cell 2.

[0098] For non-URLLC service, the network device can send first indication information to the user terminal of non-URLLC service (i.e. the first terminal device in the following embodiment), which indicates that the user terminal of non-URLLC service uses the full bandwidth of 100M TDD cell 1 in uplink communication, i.e. can use the full spectrum resource of 100M TDD cell 1, and uses part of the bandwidth of 100M TDD cell 1 (such as 40M) in downlink communication, i.e. can use part of the spectrum resource of 100M TDD cell 1.

[0099] For URLLC service, the network device can send second indication information to the user terminal of URLLC service (i.e. the second terminal device in the following embodiment), which indicates that the user terminal of URLLC service uses the bandwidth of 60M SUL cell in uplink communication, i.e. can use the full spectrum resource of 60M SUL cell, and uses the 60M bandwidth of 60M TDD cell 2 in downlink communication, i.e. can use the full spectrum resource of 60M TDD cell 2.

[0100] Fig. 4 is a schematic diagram of different services using cell spectrum resources in a communication method provided by the embodiment of the application. When the user terminal of non-URLLC service receives the first indication information, as shown in Fig. 4, it can use the full spectrum resource of 100M TDD cell 1 in uplink communication and part of the spectrum resource of 100M TDD cell 1 (such as 40M bandwidth) in downlink communication based on the first indication information. When the user terminal of URLLC service receives the second indication information, it uses the full spectrum resource of SUL cell in uplink communication and the full spectrum resource of 60M TDD cell 2 in downlink communication based on the second indication information.

[0101] Among them, 100M TDD cell 1 and 60M TDD cell 2 are two cells established by TDD full spectrum, and the two cells share a spectrum, so the two cells can be called equal low latency cells.

[0102] The above scheme, since 100M TDD cell 1 and 60M TDD cell 2 are the same coverage, and the frequency band range of 100M TDD cell 1 includes the frequency band range of 60M TDD cell 2, the spectrum resource of 100M TDD cell 1 contains the spectrum resource of TDD cell 2. The uplink spectrum resource of 60M TDD cell 2 is actually used by the user terminal of non-URLLC service in uplink communication. This scheduling mode makes the spectrum resources of 100M TDD cell 1 and 60M TDD cell 2 can be reasonably used, improves the utilization rate of spectrum resources, and solves the problem of resource waste in related technologies.

[0103] In addition, as shown in FIG. 2, in the prior art, when a user terminal of a non-URLLC service performs sounding reference signal (SRS) measurement, only the spectrum resource corresponding to a bandwidth of 40M can be used, and when the non-URLLC service is a positioning service, the positioning accuracy is not high.

[0104] Through the resource scheduling manner provided in the present application, as shown in FIG. 4, the user terminal of the non-URLLC service can use the uplink spectrum resource of the uplink TDD cell of 60M which is not used by the uplink communication of the URLLC service, and thus the non-URLLC service can use the entire spectrum resource of the TDD cell, i.e., 100M of spectrum resource. When the non-URLLC service is a positioning service, the positioning accuracy can be improved.

[0105] In summary, the communication method provided in the present application can simultaneously meet the communication requirements of the non-URLLC service and the URLLC service, and allows user terminals of different cells to share spectrum resources. This processing manner makes the spectrum resources more flexible to be allocated and scheduled, and improves the utilization rate of resources.

[0106] The method provided in the present application will be described in detail below in combination with the related drawings. It can be understood that the terminal and the network device in the flowchart provided in the present application are mainly taken as examples to illustrate the execution subject of the method, but the present application does not limit the execution subject of the method. For example, the terminal / network device in the flowchart can also be a chip, a chip system, or a processor supporting the terminal / network device to implement the method, and can also be a logic module or software capable of implementing all or part of the functions of the terminal / network device.

[0107] FIG. 5 is a flowchart of a communication method provided in an embodiment of the present application. The communication method is applied to the communication system shown in FIG. 1, and the method can include S201-S206, and each step will be described in detail below.

[0108] S201, a network device generates first indication information and second indication information.

[0109] The first indication information is used for indicating that the first terminal device uses first spectrum resources of a first time division duplex (TDD) cell in uplink communication and uses a first sub-spectrum resource in the first spectrum resources in downlink communication, and the second indication information is used for indicating that the second terminal device uses second spectrum resources of a supplementary uplink (SUL) cell in uplink communication and uses a second sub-spectrum resource in the first spectrum resources in downlink communication. The first spectrum resources are all spectrum resources of the first TDD cell, the second sub-spectrum resource is a spectrum resource in the first spectrum resources except the first sub-spectrum resource, the second TDD cell and the first TDD cell are in the same coverage, and a frequency band range of the first TDD cell includes a frequency band range of the second TDD cell. The first terminal device is a terminal device accessing the first TDD cell, and the second terminal device is a terminal device accessing the second TDD cell and the SUL cell.

[0110] In the embodiment of the present application, the first TDD cell and the second TDD cell can be understood as two cells established by a TDD spectrum, and the bandwidth of the first TDD cell is greater than the bandwidth of the second TDD cell. The spectrum resources of the second TDD cell are part of the spectrum resources of the first TDD cell. The bandwidth of the first TDD cell and the bandwidth of the second TDD cell can be divided according to actual business and application scenarios, which is not limited in the embodiment of the present application.

[0111] For example, the first TDD cell can be a 100M TDD cell 1 in FIG. 4, and the second TDD cell can be a 60M TDD cell 2 in FIG. 4.

[0112] In a feasible implementation, the network device can generate the first indication information and the second indication information according to current business demand information. This way of generating corresponding indication information according to business demand information improves the accuracy of the generated prompt information, and further improves the accuracy of resource scheduling.

[0113] In a feasible implementation, the first terminal device can be a terminal device accessing the first TDD cell, for example, a user terminal of a non-URLLC service; and the second terminal device can be a terminal device accessing the second TDD cell and the SUL cell, for example, a user terminal device of a URLLC service. The TDD carrier used by the first terminal device and the TDD carrier used by the second terminal device are in the same spectrum; the second terminal device uses the TDD carrier for downlink communication and uses the SUL carrier for uplink communication.

[0114] In the embodiment of the present application, the bandwidth of the second TDD cell and the bandwidth of the second sub-spectrum resource can be the same or different.

[0115] In a feasible implementation, the bandwidth of the second TDD cell is different from the bandwidth of the second sub-spectrum resource, and the bandwidth of the second TDD cell can be greater than the bandwidth of the second sub-spectrum resource, or the bandwidth of the second TDD cell can be less than the bandwidth of the second sub-spectrum resource.

[0116] For example, the bandwidth of the second TDD cell is different from the bandwidth of the second sub-spectrum resource, and the bandwidth of the second TDD cell can be 80M or 50M.

[0117] In a feasible implementation, the bandwidth of the second TDD cell is the same as the bandwidth of the second sub-spectrum resource, that is, the bandwidth of the second TDD cell is the bandwidth of the second sub-spectrum resource. As shown in FIG. 4, the bandwidth of the second TDD cell and the second sub-spectrum resource is 60M.

[0118] In the embodiments of the present application, the first TDD cell can be a cell in which an eMBB user resides, and the second TDD cell can be a cell in which a URLLR user resides.

[0119] FIG. 6 is a schematic diagram of carrier usage of two TDD cells in a communication method provided by the embodiments of the present application. FIG. 6 is an example in which the first TDD cell is a cell in which an eMBB user resides, and the second TDD cell is a cell in which a URLLR user resides.

[0120] As shown in FIG. 6, the first indication information indicates that the terminal device (i.e., the first terminal device) corresponding to the eMBB user adopts a 100M TDD carrier in uplink communication, and the TDD carrier can realize transmission of a physical uplink control channel (PUCCH), a physical random access channel (PRACH), and a physical uplink shared channel (PUSCH); and adopts a 40M TDD carrier in downlink communication, and the TDD carrier can realize transmission of a physical downlink shared channel (PDSCH) and a physical downlink control channel (PDCCH).

[0121] The second indication information indicates that the terminal device (i.e., the second terminal device) corresponding to the URLLC user does not use a TDD carrier (i.e., is empty) in uplink communication, and uses a 60M SUL carrier, and the transmission of PRACH, PUCCH, and PUSCH can be implemented on the SUL carrier; and uses a 40M TDD carrier in downlink communication, and the transmission of PDSCH and PDCCH can be implemented on the TDD carrier.

[0122] The first terminal device can only access the first TDD cell, and the first terminal device is rejected by the network device when attempting to access the second TDD cell and the SUL cell; and the second terminal device can only access the second TDD cell and the SUL cell, and the second terminal device is rejected by the network device when attempting to access the first TDD cell.

[0123] In an embodiment of the present application, the network device can send the first indication information to the first terminal device, and send the second indication information to the second terminal device.

[0124] In an embodiment of the present application, the network device sends the first indication information to the first terminal device, and sends the second indication information to the second terminal device. In this way, the first terminal device can use the first frequency spectrum resource of the first time division duplex (TDD) cell in uplink communication with the network device based on the first indication information, and use the first sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication. The second terminal device uses the second frequency spectrum resource of the SUL cell in uplink communication with the network device based on the second indication information, and uses the second sub-frequency spectrum resource of the first frequency spectrum resource in downlink communication. The frequency spectrum resources of the first TDD cell and the second TDD cell divided on the TDD carrier are both used, and the problem of resource waste in the related art is avoided.

[0125] In an embodiment of the present application, the network device sends the first indication information to the first terminal device, and sends the second indication information to the second terminal device. This can be implemented in the following ways:

[0126] In a first way, the first DCI is sent to the first terminal device, and the second DCI is sent to the second terminal device, wherein the first DCI includes the first indication information, and the second DCI includes the second indication information.

[0127] In the first DCI, the first indication information is carried, and in the second DCI, the second indication information is carried.

[0128] The second manner includes: sending first radio resource control (RRC) signaling to the first terminal device and sending second RRC signaling to the second terminal device. The first RRC signaling includes the first indication information, and the second RRC signaling includes the second indication information.

[0129] The first RRC signaling carries the first indication information, and the second RRC signaling carries the second indication information.

[0130] The third manner includes: sending third DCI to the first terminal device and sending fourth DCI to the second terminal device, the third DCI includes the first indication information, and the fourth DCI includes the second indication information; the third DCI is used to activate the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication; and the fourth DCI is used to activate the second frequency spectrum resource of the second terminal device in uplink communication and the second sub-frequency spectrum resource in downlink communication.

[0131] The third DCI carries the first indication information and is used to activate the configured first frequency spectrum resource and the first sub-frequency spectrum resource. The fourth DCI carries the second indication information and is used to activate the configured second frequency spectrum resource and the second sub-frequency spectrum resource.

[0132] Before sending the third DCI to the first terminal device and sending the fourth DCI to the second terminal device, the network device needs to send third RRC signaling to the first terminal device and send fourth RRC signaling to the second terminal device, wherein the third RRC signaling is used to configure the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication, and the fourth RRC signaling is used to configure the second frequency spectrum resource of the second terminal device in uplink communication and the second sub-frequency spectrum resource in downlink communication.

[0133] In the embodiments of the present application, any one of the above manners can be used to indicate the frequency spectrum resources used by the first terminal device in uplink communication and downlink communication respectively, and to indicate the frequency spectrum resources used by the second terminal device in uplink communication and downlink communication respectively, so that the first terminal device and the second terminal device can reasonably use the frequency spectrum resources of the first TDD cell and the frequency spectrum resources of the second TDD cell, improve the utilization rate of the frequency spectrum resources, and solve the problem of resource waste in the related art.

[0134] S203, the first terminal device receives the first indication information from the network device.

[0135] S204, based on the first indication information, the first terminal device communicates with the network device.

[0136] In the embodiments of the present application, the first terminal device can use the first spectrum resource of the first time division duplex (TDD) cell in uplink communication with the network device based on the first indication information, and use the first sub-spectrum resource of the first spectrum resource in downlink communication.

[0137] In the embodiments of the present application, the second terminal device can use the second spectrum resource of the SUL cell in uplink communication with the network device based on the second indication information, and use the second sub-spectrum resource of the first spectrum resource in downlink communication.

[0138] In the embodiments of the present application, the second terminal device can use the second spectrum resource of the SUL cell in uplink communication with the network device based on the second indication information, and use the second sub-spectrum resource of the first spectrum resource in downlink communication.

[0139] In the embodiments of the present application, the second terminal device can use the second spectrum resource of the SUL cell in uplink communication with the network device based on the second indication information, and use the second sub-spectrum resource of the first spectrum resource in downlink communication.

[0140] The communication method provided by the embodiments of the present application generates the first indication information and the second indication information, the first indication information is used to indicate that the first terminal device uses the first spectrum resource of the first time division duplex (TDD) cell in uplink communication, and uses the first sub-spectrum resource of the first spectrum resource in downlink communication, the second indication information is used to indicate that the second terminal device uses the second spectrum resource of the supplementary uplink (SUL) cell in uplink communication, and uses the second sub-spectrum resource of the first spectrum resource in downlink communication, wherein the first spectrum resource is all spectrum resources of the first TDD cell, the second sub-spectrum resource is a spectrum resource other than the first sub-spectrum resource in the first spectrum resource, the second TDD cell and the first TDD cell are in the same coverage, and the frequency band range of the first TDD cell includes the frequency band range of the second TDD cell; the first indication information is sent to the first terminal device, and the second indication information is sent to the second terminal device, the first terminal device is a terminal device accessing the first TDD cell, and the second terminal device is a terminal device accessing the second TDD cell and the SUL cell. In this way, the spectrum resources of the first TDD cell and the second TDD cell divided on the TDD carrier are both used, the resource utilization rate is improved, and the problem of resource waste in the related art is avoided.

[0141] The above describes the method embodiments provided by the present application, and the device embodiments provided by the present application will be described below. It should be understood that the description of the device embodiments corresponds to the description of the method embodiments, and therefore, the content not described in detail can be referred to the method embodiments described above, and will not be described here in detail for brevity.

[0142] Figure 7 is a schematic block diagram of a communication device provided in an embodiment of this application. As shown in Figure 7, the communication device 3 may include a communication unit 31 and a processing unit 32. The communication unit 31 can implement corresponding communication functions, which can be internal communication within the communication device 3 or communication between the communication device 3 and other devices; the processing unit 32 can implement corresponding processing functions. The communication unit 31 may also be referred to as a communication interface or a transceiver unit. Optionally, the communication device 3 may further include a storage unit, which can be used to store instructions and / or data, and the processing unit 32 can read the instructions and / or data in the storage unit to enable the device to implement the aforementioned method embodiment.

[0143] In one possible design, the communication device can be a network device as described in the above embodiments, or it can be a module or chip applied to a network device. The communication device 3 can be used to execute the steps or processes performed by the network device in the above embodiments.

[0144] Specifically, processing unit 32 is used to generate first indication information and second indication information. The first indication information is used to instruct the first terminal device to use the first spectrum resources of the first time division duplex (TDD) cell during uplink communication and to use the first sub-spectrum resources of the first spectrum resources during downlink communication. The second indication information is used to instruct the second terminal device to use the second spectrum resources of the supplementary uplink (SUL) cell during uplink communication and to use the second sub-spectrum resources of the first spectrum resources during downlink communication. The first spectrum resources are all the spectrum resources of the first TDD cell, and the second sub-spectrum resources are the spectrum resources of the first spectrum resources excluding the first sub-spectrum resources. The second TDD cell and the first TDD cell have the same coverage, and the frequency band range of the first TDD cell includes the frequency band range of the second TDD cell. Communication unit 31 is used to send the first indication information to the first terminal device and to send the second indication information to the second terminal device. The first terminal device is a terminal device that accesses the first TDD cell, and the second terminal device is a terminal device that accesses both the second TDD cell and the SUL cell.

[0145] Optionally, the bandwidth of the second TDD cell is the bandwidth of the second sub-spectrum resource.

[0146] Optionally, the communication unit 31 is specifically used to send a first downlink control information (DCI) to the first terminal device and a second DCI to the second terminal device, wherein the first DCI includes first indication information and the second DCI includes second indication information.

[0147] Optionally, the communication unit 31 is specifically used to send a first Radio Resource Control (RRC) signaling to the first terminal device and a second RRC signaling to the second terminal device. The first RRC signaling includes first indication information, and the second RRC signaling includes second indication information.

[0148] Optionally, the communication unit 31 is specifically configured to send, to the first terminal device, third DCI including the first indication information, and to send, to the second terminal device, fourth DCI including the second indication information, the third DCI being used to activate the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication, and the fourth DCI being used to activate the second frequency spectrum resource of the second terminal device in uplink communication and the second sub-frequency spectrum resource in downlink communication.

[0149] Optionally, the communication unit 31 is further configured to send, to the first terminal device, third RRC signaling, and to send, to the second terminal device, fourth RRC signaling, wherein the third RRC signaling is used to configure the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication, and the fourth RRC signaling is used to configure the second frequency spectrum resource of the second terminal in uplink communication and the second sub-frequency spectrum resource in downlink communication.

[0150] In a possible design, the communication apparatus 3 can be the first terminal device in the above-described embodiments, and can also be a module or a chip applied to the second terminal device. The communication apparatus 3 can be configured to perform the steps or processes performed by the first terminal device in the above-described embodiments.

[0151] Specifically, the communication unit 31 is configured to receive first indication information from a network device, the first indication information being used to indicate that the first terminal device uses a first frequency spectrum resource of a first TDD cell in uplink communication and uses a first sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication, the first frequency spectrum resource being all frequency spectrum resources of the first TDD cell, and perform communication with the network device based on the first indication information.

[0152] Optionally, the communication unit 31 is specifically configured to receive first radio resource control (RRC) signaling from a network device, the first RRC signaling including the first indication information.

[0153] Optionally, the communication unit 31 is specifically configured to receive first downlink control information (DCI) from a network device, the first DCI including the first indication information.

[0154] Optionally, the communication unit 31 is specifically configured to receive third DCI from a network device, the third DCI being used to activate the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication.

[0155] Optionally, the communication unit 31 is further configured to receive third RRC signaling from a network device, the third RRC signaling being used to configure the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication.

[0156] In a possible design of the present disclosure, the communication apparatus 3 can be the second terminal device in the above-described embodiments, and can also be a module or a chip applied to the second terminal device. The communication apparatus 3 can be configured to perform the steps or processes performed by the second terminal device in the above-described embodiments.

[0157] Specifically, the communication unit 31 is configured to receive second indication information from a network device, the second indication information being used to indicate that the second terminal device uses a second spectrum resource of a SUL cell in uplink communication and uses a second sub-spectrum resource of a first TDD cell in downlink communication, the second sub-spectrum resource being a part of spectrum resource of the first TDD cell, the second TDD cell and the first TDD cell being in the same coverage, and a frequency band range of the first TDD cell including a frequency band range of the second TDD cell; and perform communication with the network device based on the second indication information.

[0158] Optionally, a bandwidth of the second TDD cell is a bandwidth of the second sub-spectrum resource.

[0159] Optionally, the communication unit 31 is specifically configured to receive second radio resource control (RRC) signaling from the network device, and the second RRC signaling includes the second indication information.

[0160] Optionally, the communication unit 31 is specifically configured to receive second downlink control information (DCI) from the network device, and the second DCI includes the second indication information.

[0161] Optionally, the communication unit 31 is specifically configured to receive fourth DCI from the network device, and the fourth DCI is used to activate the second spectrum resource in uplink communication and the second sub-spectrum resource in downlink communication of the second terminal device.

[0162] Optionally, the communication unit 31 is further configured to receive fourth RRC signaling from the network device, and the fourth RRC signaling is used to configure the second spectrum resource in uplink communication and the second sub-spectrum resource in downlink communication of the second terminal device.

[0163] The steps or processes performed by the units in the communication apparatus 3 can refer to the descriptions in the corresponding methods, and will not be repeated here.

[0164] It should be understood that the "unit" in the communication device 3 can be implemented by hardware, or by software, or by executing corresponding software by hardware. For example, the "unit" can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (for example, a shared processor, a dedicated processor, or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combination logic circuit, and / or other suitable components supporting the described functions. For another example, the communication unit 31 can be replaced by a transceiver circuit (for example, which can include a receiving circuit and a sending circuit), and the processing unit 32 can be replaced by a processor or a processing circuit.

[0165] FIG. 8 shows a schematic block diagram of another communication device according to an embodiment of the present application. The device 4 can be a network device or a terminal, or a chip, a chip system, or a processor, etc. supporting the network device or the terminal to implement the above method. The device can be used to implement the method described in the above method embodiments, and specific implementation can be referred to the description in the above method embodiments.

[0166] The device 4 can include one or more processors 41, which can also be referred to as processing units, and can implement certain control functions. The processor 41 can be a general purpose processor or a special purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a base station, a baseband chip, a user chip, a DU or a CU, etc.), execute software programs, and process data of the software programs.

[0167] In an optional design, the processor 41 can also store instructions and / or data, which can be executed by the processor 41, so that the device 4 performs the method described in the above method embodiments.

[0168] In another optional design, the communication device 4 can include a communication interface 42 for implementing receiving and sending functions. For example, the communication interface 42 can be a transceiver circuit, an interface, an interface circuit, or a transceiver, etc. The transceiver circuit, the interface, the interface circuit, or the transceiver for implementing the receiving and sending functions can be separate or integrated together. The above transceiver circuit, interface, interface circuit, or transceiver can be used for reading and writing of codes / data, or the above transceiver circuit, interface, interface circuit, or transceiver can be used for transmission or transfer of signals.

[0169] Optionally, the apparatus 4 can include one or more memories 43, on which instructions can be stored, which can be run on the processor 41, so that the apparatus 4 performs the methods described in the above method embodiments. Optionally, the memory 43 can also store data. Optionally, the processor 41 can also store instructions and / or data. The processor 41 and the memory 43 can be separately arranged, or integrated together.

[0170] Figure 9 is a structural schematic diagram of a terminal device provided in the present application. The communication apparatus 3 or the communication apparatus 4 can be arranged in the terminal device 5. Alternatively, the communication apparatus 3 or the communication apparatus 4 itself can be the terminal device 5. In other words, the terminal device 5 can perform the actions performed by the first terminal device or the second terminal device in the above method embodiments.

[0171] In a possible implementation, the terminal device 5 is configured to receive first indication information from a network device, the first indication information being used to indicate that a first terminal device uses a first frequency spectrum resource of a first TDD cell in uplink communication, and uses a first sub-frequency spectrum resource of the first frequency spectrum resource in downlink communication, the first frequency spectrum resource being all frequency spectrum resources of the first TDD cell; and perform communication with the network device based on the first indication information.

[0172] In another possible implementation, the terminal device 5 is configured to receive second indication information from a network device, the second indication information being used to indicate that a second terminal device uses a second frequency spectrum resource of a SUL cell in uplink communication, and uses a second sub-frequency spectrum resource of a first TDD cell in downlink communication, the second sub-frequency spectrum resource being part of frequency spectrum resources of the first TDD cell, the second TDD cell and the first TDD cell being in the same coverage, and a frequency band range of the first TDD cell including a frequency band range of the second TDD cell; and perform communication with the network device based on the second indication information.

[0173] As shown in Figure 9, the terminal device 5 includes a processor, a memory, a control circuit, an antenna, and an input / output device.

[0174] The processor is mainly used for processing communication protocols and communication data, and controlling the whole terminal, executing software programs, processing data of the software programs, for example, for supporting the terminal to perform the actions described in the above method embodiments. The memory is mainly used for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals, and processing radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used for transceiving radio frequency signals in the form of electromagnetic waves. The input / output device, for example, a touch screen, a display screen, a keyboard, etc., is mainly used for receiving data input by a user and outputting data to the user.

[0175] When the terminal is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal, and sends the radio frequency signal in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

[0176] Those skilled in the art can understand that, for the sake of illustration, FIG. 9 only shows one memory and one processor. In an actual terminal, there can be multiple processors and multiple memories. The memory can also be referred to as a storage medium or a storage device, and the like, and the embodiments of the present application do not limit this.

[0177] For example, the processor can include a baseband processor and a central processor. The baseband processor is mainly used for processing communication protocols and communication data. The central processor is mainly used for controlling the entire terminal, executing software programs, and processing data of the software programs. The processor in FIG. 9 integrates the functions of the baseband processor and the central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors interconnected by a bus or the like. Those skilled in the art can understand that the terminal can include multiple baseband processors to adapt to different network standards, and the terminal can include multiple central processors to enhance its processing capability. Various buses can be used to connect the components of the terminal. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

[0178] For example, in the embodiments of the present application, the antenna with transceiving function and the control circuit can be regarded as a transceiving unit 51 of the terminal 5, and the processor with processing function can be regarded as a processing unit 52 of the terminal 5. As shown in FIG. 9, the terminal 5 includes the transceiving unit 51 and the processing unit 52. The transceiving unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like. Optionally, the devices in the transceiving unit 51 for realizing the receiving function can be regarded as a receiving unit, and the devices in the transceiving unit 51 for realizing the sending function can be regarded as a sending unit, that is, the transceiving unit 51 includes the receiving unit and the sending unit. For example, the receiving unit can also be referred to as a receiver, a receiver, a receiving circuit, and the like, and the sending unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.

[0179] FIG. 10 is a structural schematic diagram of a network device provided in an embodiment of the present application. The communication apparatus 3 or the communication apparatus 4 can be configured in the network device 6. Alternatively, the communication apparatus 3 or the communication apparatus 4 can be the network device 6 itself. Alternatively, the network device 6 can perform the actions of the network device in the method embodiments.

[0180] In an implementation manner, the network device 6 is configured to: generate first indication information and second indication information, the first indication information being used for indicating that a first terminal device uses a first frequency spectrum resource of a first time division duplex (TDD) cell in uplink communication and uses a first sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication, and the second indication information being used for indicating that a second terminal device uses a second frequency spectrum resource of a supplementary uplink (SUL) cell in uplink communication and uses a second sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication, the first frequency spectrum resource being all frequency spectrum resources of the first TDD cell, the second sub-frequency spectrum resource being a frequency spectrum resource in the first frequency spectrum resource except the first sub-frequency spectrum resource, the second TDD cell and the first TDD cell being in the same coverage, and a frequency band range of the first TDD cell including a frequency band range of the second TDD cell; and transmit the first indication information to the first terminal device and transmit the second indication information to the second terminal device, the first terminal device being a terminal device accessing the first TDD cell, and the second terminal device being a terminal device accessing the second TDD cell and the SUL cell.

[0181] As shown in FIG. 10, the network device 6 can include one or more DUs 61 and one or more CUs 62. The CU 62 can communicate with an NG core (NC). The DU 61 can include at least one antenna 611, at least one radio frequency unit 612, at least one processor 613, and at least one memory 614. The DU 61 is mainly used for transceiving of radio frequency signals, conversion between radio frequency signals and baseband signals, and partial baseband processing. The CU 62 can include at least one processor 622 and at least one memory 621. The CU 62 and the DU 61 can communicate through an interface, wherein a control plane (CP) interface can be Fs-C, such as F1-C, and a user plane (UP) interface can be Fs-U, such as F1-U.

[0182] The CU 62 is mainly used for baseband processing, controlling the network device 6, and the like. The DU 61 and the CU 62 can be physically arranged together or can be physically arranged separately, that is, a distributed base station. The CU 62 is a control center of the network device 6, and can also be referred to as a processing unit, and is mainly used for completing a baseband processing function. For example, the CU 62 can be used to control the network device 6 to perform the operation process of the first device or the second device in the method embodiments.

[0183] Specifically, the baseband processing on the CU and the DU can be divided according to the protocol layer of the wireless network, for example, the functions of the PDCP layer and above protocol layers are arranged in the CU, and the functions of the protocol layers below the PDCP, such as the RLC layer and the MAC layer, are arranged in the DU. For another example, the CU implements the functions of the RRC layer and the PDCP layer, and the DU implements the functions of the RLC layer, the MAC layer and the PHY layer.

[0184] In addition, the network device 6 can optionally include one or more radio units (RUs), one or more DUs and one or more CUs. Among them, the DU can include at least one processor 613 and at least one memory 614, the RU can include at least one antenna 611 and at least one radio frequency unit 612, and the CU can include at least one processor 622 and at least one memory 621.

[0185] In one example, the CU 62 can be composed of one or more single boards, and the multiple single boards can jointly support a single access indicated wireless access network (such as a 5G network), or can separately support wireless access networks of different access modes (such as an LTE network, a 5G network or other networks). The memory 621 and the processor 622 can serve one or more single boards. That is, the memory and the processor can be separately arranged on each single board. Alternatively, multiple single boards can share the same memory and processor. In addition, necessary circuits can also be arranged on each single board. The DU 61 can be composed of one or more single boards, and the multiple single boards can jointly support a single access indicated wireless access network (such as a 5G network), or can separately support wireless access networks of different access modes (such as an LTE network, a 5G network or other networks). The memory 614 and the processor 613 can serve one or more single boards. That is, the memory and the processor can be separately arranged on each single board. Alternatively, multiple single boards can share the same memory and processor. In addition, necessary circuits can also be arranged on each single board.

[0186] It should be understood that the network device 6 shown in FIG. 10 can implement the various processes of the actions performed by the network device in the foregoing method embodiments. The operations and / or functions of the various modules in the network device 6 are respectively implemented in order to implement the corresponding processes in the above method embodiments. For details, please refer to the description in the above method embodiments, and the detailed description is appropriately omitted here.

[0187] It should be understood that the network device 6 shown in FIG. 10 is only one possible architecture of the network device, and should not constitute any limitation on the present application. The method provided by the present application can be applied to network devices of other architectures. For example, network devices containing CUs, DUs and AAUs, etc. The specific architecture of the network device is not limited in the present application.

[0188] It should be understood that, in a possible design, each step in the method embodiments provided in the present application can be completed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as execution completed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory in combination with the hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0189] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method embodiments can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The processor mentioned above can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. Each method, step and logic block disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as execution completed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory in combination with the hardware to complete the steps of the above method.

[0190] It is to be understood that the memory in the embodiments of the present application can be a volatile memory or a nonvolatile memory, or can include both volatile and nonvolatile memory. Among them, the nonvolatile memory can be a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM) used as an external cache. By way of example, and not limitation, many forms of RAM can be used, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchlink DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the system and method described herein is intended to include, among others, these and any other suitable types of memory.

[0191] The present application also provides a computer program product, comprising computer program code which, when executed on a computer, causes the computer to perform the steps or procedures of any of the above method embodiments performed by the network device or the terminal.

[0192] The present application also provides a computer-readable storage medium storing program code which, when executed on a computer, causes the computer to perform the steps or procedures of any of the above method embodiments performed by the network device or the terminal.

[0193] The present application also provides a communication apparatus comprising a processor and an interface for transmitting and / or receiving signals, so that the processor performs the steps or procedures of any of the above method embodiments performed by the network device or the terminal.

[0194] The present application also provides a communication system comprising at least one of the network device and the terminal.

[0195] The various device embodiments and method embodiments described above can fully correspond, with corresponding steps performed by corresponding modules or units, for example, the communication unit or communication interface performs the steps of receiving or sending in the method embodiments, and other steps except sending and receiving can be performed by the processing unit or processor.

[0196] In the embodiments of the present application, each term and English abbreviation is an exemplary example given for the convenience of description, and should not constitute any limitation on the present application. The present application does not exclude the possibility of defining other terms capable of achieving the same or similar functions in existing or future protocols.

[0197] The terms "component," "module," "system," and the like are used in the present description to represent a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and / or thread of execution, and a component can be localized on one computer and / or distributed between two or more computers. In addition, these components can execute from various computer-readable media having various data structures stored thereon. The components can communicate by way of local and / or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and / or across a network such as the Internet with other systems via the signal), by way of example.

[0198] Those of ordinary skill in the art can realize that the various illustrative logical blocks and steps described in connection with the embodiments disclosed herein can be implemented or performed with electronic hardware, or a combination of computer software and electronic hardware. The choice of whether to implement the described functions in hardware or software depends on the particular application and design constraints imposed on the technical solution. Skilled professionals can use different methods to implement the described functions for each particular application, but such implementation should not be considered beyond the scope of the present application.

[0199] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described system, device and unit can be based on the corresponding processes in the foregoing method embodiments, which will not be described here.

[0200] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented in other manners. For example, the division of the above-described device embodiment is only a logical function division, and there can be another division manner for actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units, and can be electrical, mechanical or in other forms.

[0201] The units described as separated components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments.

[0202] In addition, each functional unit in the various embodiments of the present application can be integrated in one processing unit, or each unit can exist physically as separate units, or two or more units can be integrated in one unit.

[0203] In the above embodiments, the functions of each unit can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, the functions can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, the whole or part of the processes or functions according to the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer readable storage medium, or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transferred from one website site, computer, server or data center to another website site, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (such as floppy disk, hard disk, magnetic tape), optical media (such as DVD), or semiconductor media (such as solid state disk (SSD)) and the like.

[0204] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application essentially or the parts of the prior art that make contributions or parts of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0205] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A communication method characterized by comprising: The method is applied to a network device, and comprises: generating first indication information and second indication information, the first indication information being used to indicate that a first terminal device uses a first frequency spectrum resource of a first time division duplex (TDD) cell in uplink communication and uses a first sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication, and the second indication information being used to indicate that a second terminal device uses a second frequency spectrum resource of a supplementary uplink (SUL) cell in uplink communication and uses a second sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication, wherein the first frequency spectrum resource is all frequency spectrum resources of the first TDD cell, the second sub-frequency spectrum resource is a frequency spectrum resource other than the first sub-frequency spectrum resource in the first frequency spectrum resource, a second TDD cell and the first TDD cell are in the same coverage, and a frequency band range of the first TDD cell includes a frequency band range of the second TDD cell; sending the first indication information to the first terminal device and sending the second indication information to the second terminal device, the first terminal device being a terminal device accessing the first TDD cell, and the second terminal device being a terminal device accessing the second TDD cell and the SUL cell.

2. The method of claim 1, wherein, A bandwidth of the second TDD cell is a bandwidth of the second sub-frequency spectrum resource.

3. The method according to claim 1 or 2, characterized in that, The sending of the first indication information to the first terminal device and the sending of the second indication information to the second terminal device comprise: sending first downlink control information (DCI) to the first terminal device and sending second DCI to the second terminal device, wherein the first DCI includes the first indication information, and the second DCI includes the second indication information.

4. The method according to claim 1 or 2, characterized in that, The sending of the first indication information to the first terminal device and the sending of the second indication information to the second terminal device comprise: sending first radio resource control (RRC) signaling to the first terminal device and sending second RRC signaling to the second terminal device, the first RRC signaling including the first indication information, and the second RRC signaling including the second indication information.

5. The method according to claim 1 or 2, characterized in that, The sending of the first indication information to the first terminal device and the sending of the second indication information to the second terminal device comprise: sending third DCI to the first terminal device and sending fourth DCI to the second terminal device, the third DCI including the first indication information, and the fourth DCI including the second indication information, the third DCI being used to activate the first frequency spectrum resource of the first terminal device in uplink communication and the first sub-frequency spectrum resource in downlink communication, and the fourth DCI being used to activate the second frequency spectrum resource of the second terminal device in uplink communication and the second sub-frequency spectrum resource in downlink communication.

6. The method of claim 5, wherein, Before the sending of the third DCI to the first terminal device and the sending of the fourth DCI to the second terminal device, the method further comprises: sending third RRC signaling to the first terminal device, and sending fourth RRC signaling to the second terminal device, wherein the third RRC signaling is used for configuring the first frequency spectrum resource for uplink communication and the first sub-frequency spectrum resource for downlink communication of the first terminal device, and the fourth RRC signaling is used for configuring the second frequency spectrum resource for uplink communication and the second sub-frequency spectrum resource for downlink communication of the second terminal.

7. A communication method characterized by comprising: The method is applied to a first terminal device, and the first terminal device is a terminal device accessing a first time division duplex (TDD) cell, and the method comprises the following steps: receiving first indication information from a network device, wherein the first indication information is used for indicating that the first terminal device uses a first frequency spectrum resource of the first TDD cell in uplink communication, and uses a first sub-frequency spectrum resource in the first frequency spectrum resource in downlink communication, and the first frequency spectrum resource is all frequency spectrum resources of the first TDD cell; communicating with the network device based on the first indication information.

8. The method of claim 7, wherein, The step of receiving the first indication information from the network device comprises the following steps: receiving first radio resource control (RRC) signaling from the network device, wherein the first RRC signaling comprises the first indication information.

9. The method of claim 7, wherein, The step of receiving the first indication information from the network device comprises the following steps: receiving first downlink control information (DCI) from the network device, wherein the first DCI comprises the first indication information.

10. The method of claim 7, wherein, The step of receiving the first indication information from the network device comprises the following steps: receiving third DCI from the network device, wherein the third DCI is used for activating the first frequency spectrum resource in uplink communication and the first sub-frequency spectrum resource in downlink communication of the first terminal device.

11. The method of claim 10, wherein, Before the step of receiving the third DCI from the network device, the method further comprises the following steps: receiving third RRC signaling from the network device, wherein the third RRC signaling is used for configuring the first frequency spectrum resource for uplink communication and the first sub-frequency spectrum resource for downlink communication of the first terminal device.

12. A communication method characterized by comprising: The method is applied to a second terminal device, and the second terminal device is a terminal device accessing a second time division duplex (TDD) cell and a supplementary uplink (SUL) cell, and the method comprises the following steps: receiving second indication information from a network device, wherein the second indication information is used for indicating that the second terminal device uses a second frequency spectrum resource of the SUL cell in uplink communication, and uses a second sub-frequency spectrum resource of a first TDD cell in downlink communication, wherein the second sub-frequency spectrum resource is part of frequency spectrum resources of the first TDD cell, the second TDD cell and the first TDD cell are in the same coverage, and a frequency band range of the first TDD cell comprises a frequency band range of the second TDD cell; communicating with the network device based on the second indication information.

13. The method of claim 12, wherein, A bandwidth of the second TDD cell is a bandwidth of the second sub-frequency spectrum resource.

14. The method according to claim 12 or 13, characterized in that, The step of receiving the second indication information from the network device comprises the following steps: receiving second radio resource control (RRC) signaling from the network device, wherein the second RRC signaling comprises the second indication information.

15. The method of claim 12 or 13, wherein, The receiving the second indication information from the network device comprises: receiving second downlink control information (DCI) from the network device, wherein the second DCI comprises the second indication information.

16. The method of claim 12 or 13, wherein, The receiving the second indication information from the network device comprises: receiving fourth DCI from the network device, wherein the fourth DCI is used to activate the second frequency spectrum resource for uplink communication and the second sub-frequency spectrum resource for downlink communication of the second terminal device.

17. The method of claim 16, wherein, Before the receiving the fourth DCI from the network device, the method further comprises: receiving fourth RRC signaling from the network device, wherein the fourth RRC signaling is used to configure the second frequency spectrum resource for uplink communication and the second sub-frequency spectrum resource for downlink communication of the second terminal device.

18. A communications device, characterized by A device comprising means for performing each of the steps of the method of any one of claims 1-6, or means for performing each of the steps of the method of any one of claims 7-11, or means for performing each of the steps of the method of any one of claims 12-17.

19. A communications device, characterized by A device comprising a processor coupled to a memory, the memory storing a program or instructions that, when executed by the processor, cause the device to perform the method of any one of claims 1-6, 7-11, or 12-17.

20. A readable storage medium, on which a computer program or instructions are stored, characterized in that, The computer program or instructions, when executed, cause the computer to perform the method of any one of claims 1-6, 7-11, or 12-17.

21. A computer program product, characterised in that, The computer program instructions cause the computer to perform the method of any one of claims 1-6, 7-11, or 12-17.

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