Wireless communication method, communication device, and terminal device

Abstract

The present application provides a wireless communication method, a communication device, and a terminal device. The method comprises: a first base station acquires multi-modal relationship information, wherein the multi-modal relationship information is used for indicating a multi-modal relationship between a plurality of data flows, and the plurality of data flows belong to a plurality of terminal devices; and the first base station schedules the plurality of data flows of the plurality of terminal devices on the basis of the multi-modal relationship information.

Description

Wireless communication method, communication device and terminal device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method, a communication device, and a terminal device. Background Art

[0002] Some multimodal services, such as extended reality (XR) multimodal services, often require a multimodal relationship between multiple data streams. If these multiple data streams belong to the same terminal device, the terminal device can, for example, use user plane control information and / or control plane control information to schedule multiple data streams to implement XR multimodal services.

[0003] Since the above-mentioned multiple data streams belong to the same terminal device, the implementation of multimodal services is relatively simple. However, if the above-mentioned multiple data streams belong to multiple terminal devices, then how to implement multimodal services is a technical problem that needs to be solved urgently.

[0004] Summary of the Invention

[0005] The present application provides a wireless communication method, a communication device, and a terminal device. The following introduces various aspects of the present application.

[0006] In a first aspect, a wireless communication method is provided, comprising: obtaining multimodal relationship information, wherein the multimodal relationship information is used to indicate a multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices; and scheduling the multiple data streams of the multiple terminal devices according to the multimodal relationship information.

[0007] In a second aspect, a wireless communication method is provided, comprising: sending first information to a first base station, the first information comprising multimodal relationship information; wherein the multimodal relationship information is used to indicate a multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices.

[0008] In a third aspect, a wireless communication method is provided, comprising: sending second information to a first base station, the second information comprising multimodal relationship information; wherein the multimodal relationship information is used to indicate a multimodal relationship between multiple data streams, the multiple data streams belong to multiple terminal devices, and the first terminal device is one of the multiple terminal devices.

[0009] In a fourth aspect, a communication device is provided, which is a first base station, and the communication device includes: an acquisition unit for acquiring multimodal relationship information, wherein the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices; a scheduling unit for scheduling the multiple data streams of the multiple terminal devices according to the multimodal relationship information.

[0010] In the fifth aspect, a core network device is provided, including: a sending unit for sending first information to a first base station, the first information including multimodal relationship information; wherein the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices.

[0011] In the sixth aspect, a terminal device is provided, which is a first terminal device, and the first terminal device includes: a first sending unit, used to send second information to a first base station, and the second information includes multimodal relationship information; wherein the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices, and the first terminal device is one of the multiple terminal devices.

[0012] In the seventh aspect, a communication device is provided, which is a first base station, and the communication device includes a processor, a memory, and a communication interface, the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.

[0013] In the eighth aspect, a communication device is provided, which is a core network device, and the communication device includes a processor, a memory, and a communication interface, the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the second aspect.

[0014] In the ninth aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the third aspect.

[0015] In a tenth aspect, an embodiment of the present application provides a communication system, which includes the above-mentioned communication device and / or terminal device. In another possible design, the system may also include other devices that interact with the communication device or terminal device in the solution provided in the embodiment of the present application.

[0016] In the eleventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program enables the terminal device to execute part or all of the steps in the method of the first aspect, second aspect or third aspect above.

[0017] In a twelfth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, wherein the computer program is operable to cause a terminal device to perform some or all of the steps of the method of the first, second, or third aspects described above. In some implementations, the computer program product may be a software installation package.

[0018] In the thirteenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the first, second or third aspects above.

[0019] In an embodiment of the present application, a communication device (such as a first base station) can first obtain a multimodal relationship between multiple data streams, and then the first base station schedules multiple data streams of multiple terminal devices based on the multimodal relationship, thereby enabling multimodal services between multiple terminal devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG1 is a schematic diagram of a wireless communication system used in an embodiment of the present application.

[0021] FIG2 is an example diagram of a data stream transmission sequence.

[0022] FIG3 is a flow chart of a wireless communication method according to an embodiment of the present application.

[0023] FIG4 is a flow chart of another possible wireless communication method provided in an embodiment of the present application.

[0024] FIG5 is a flow chart of another possible wireless communication method provided in an embodiment of the present application.

[0025] FIG6 is a possible example diagram of obtaining multimodal relationship information provided in an embodiment of the present application.

[0026] FIG. 7 is another possible example diagram of obtaining multimodal relationship information shown in FIG. 6 .

[0027] FIG8 is another possible example diagram of obtaining multimodal relationship information provided in an embodiment of the present application.

[0028] FIG9 is a flow chart of another possible wireless communication method provided in an embodiment of the present application.

[0029] FIG10 is a flow chart of another possible wireless communication method provided in an embodiment of the present application.

[0030] FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.

[0031] FIG12 is a schematic structural diagram of another communication device provided in an embodiment of the present application.

[0032] FIG13 is a schematic diagram of the structure of the terminal device provided in an embodiment of the present application.

[0033] FIG14 is a schematic structural diagram of a device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The technical solution in this application will be described below with reference to the accompanying drawings.

[0035] Communication System

[0036] FIG1 is a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a communication device 110 and a terminal device 120. The communication device 110 may be a device that communicates with the terminal device 120.

[0037] FIG1 exemplarily shows a communication device and two terminals. Optionally, the wireless communication system 100 may include multiple communication devices and each communication device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0038] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0039] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0040] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, 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 wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D). For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through a base station.

[0041] The communication device in the embodiments of the present application may be a device for communicating with a terminal device. The communication device may include an access network device, such as a base station device. The access network device may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 located within the coverage area. The access network device may also be referred to as a radio access network device or a base station. The access network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects the terminal device to a wireless network. Access network equipment can broadly cover various names as follows, or replace the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master eNB (MeNB), secondary eNB (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem, or chip used to be set in the aforementioned device or apparatus. A base station may also be a mobile switching center and a device that performs base station functions in D2D, V2X, and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. A base station may support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the access network device.

[0042] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0043] The communication equipment involved in the wireless communication system may also include core network equipment.

[0044] The core network equipment in the embodiment of the present application may include network elements that process and forward user signaling and data. For example, the core network equipment may include core network access and mobility management function (AMF), session management function (SMF), user plane gateway, application function (AF), location management function (LMF) and other core network equipment. Among them, AF can be used as a functional network element to provide various business services, and AF can be connected to an external server (such as an XR server); the user plane gateway can be a server with functions such as mobility management, routing, and forwarding of user plane data, generally located on the network side, such as a serving gateway (SGW) or a packet data network gateway (PGW) or a user plane network element functional entity (UPF), etc. Of course, the core network may also include other network elements, which are not listed here one by one.

[0045] In some deployments, the communication device in the embodiments of the present application may refer to a CU or a DU, or the communication device includes a CU and a DU. The gNB may also include an AAU.

[0046] Communication devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the communication devices and terminal devices are located.

[0047] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0048] XR

[0049] XR can be realized by computer technology and wearable devices. XR may include representative forms such as augmented reality (AR), mixed reality (MR), and virtual reality (VR). VR technology can simulate objects and backgrounds in the real world through computers, and can provide simulated virtual objects and virtual backgrounds to users. AR technology can provide virtual objects made virtually on images of the real world. MR technology can combine virtual reality in the real world to provide an environment for real physical objects to interact with virtual objects. It should be understood that XR business data may include multiple types such as video data, audio data, and tactile data.

[0050] Multimodal services

[0051] A multimodal service may refer to a set of data that has a multimodal relationship. The multimodal relationship may refer to the existence of a sequential and temporal transmission relationship between multiple data streams in a multimodal service. For example, multiple data streams (such as video data streams and tactile data streams) of an extended reality XR multimodal service often need to satisfy a multimodal relationship. The following takes data packet A in the video data stream and data packet B in the tactile data stream as an example to illustrate the above multimodal relationship in detail.

[0052] Referring to Figure 2 , the data source can first send data packet A at time T_A and then send data packet B at time T_B, and the time interval between T_A and T_B must be less than ΔT. On the other hand, when the two data packets are delivered to the recipient, they must also follow a certain time relationship. For example, the network delivers data packet A to the recipient at time T_A' and data packet B to the recipient at time T_B', and the time interval between T_A' and T_B' must be less than ΔT'. Currently, for multimodal service scenarios on the same terminal device, related technologies propose that the terminal device can be used to schedule multiple data streams of the multimodal service so that they meet the multimodal relationship. For example, the terminal device can use user-plane control information to schedule the multiple data streams based on the multimodal relationship to implement the multimodal service. Since the multiple data streams belong to the same terminal device, the implementation of the multimodal service is relatively simple. However, if the multiple data streams belong to multiple terminal devices, then how to implement the multimodal service is a technical problem that needs to be solved urgently.

[0053] To solve the above problem, referring to FIG3 , in an embodiment of the present application, a communication device (such as a first base station) first obtains a multimodal relationship between multiple data streams (see step S310 in FIG3 ). Then, the first base station device schedules multiple data streams of multiple terminal devices based on the multimodal relationship (see step S320 in FIG3 ), thereby enabling multimodal services between multiple terminal devices. The wireless communication method provided by an embodiment of the present application is described in more detail below in conjunction with FIG3 .

[0054] In step S310, the first base station obtains multimodal relationship information.

[0055] In some implementations, the first base station may be any type of access network device mentioned above. For example, the first base station may be the communication device 110 in FIG1 .

[0056] The multimodal relationship information of the above-mentioned multiple data streams can be used to indicate the multimodal relationship between the multiple data streams, and the multiple data streams belong to multiple terminal devices.

[0057] In some implementations, the multiple data streams may be data streams of the same service type, for example, the multiple data streams may be data streams belonging to a video service. The multiple data streams may also be data streams of different service types, for example, some of the multiple data streams may be data streams belonging to a video service, and some of the multiple data streams may be data streams belonging to a tactile service and / or an audio service.

[0058] In some embodiments, the first base station may obtain the multimodal relationship information of the multiple data streams from the core network, or may obtain the multimodal relationship from the terminal device. The following describes a detailed example of obtaining the multimodal relationship information from the core network in conjunction with FIG4 .

[0059] 4 , in step S410 , a first network element of a core network may send first information to a first base station. The first information includes multimodal relationship information of the multiple data streams. The first information may be carried in a session setup request message.

[0060] In some implementations, the first network element may include one or more of the following network elements: an access and mobility management function (AMF), a session management function (SMF), or an application function (AF). When the first network element is an AMF, the first network element may directly send the multimodal relationship information of the multiple data streams to the first base station; when the first network element is an SMF or AF, the first network element may indirectly send the multimodal relationship information to the first base station through the AMF network element.

[0061] In some implementations, the first network element may be configured to communicate with a server of the plurality of data streams to obtain multimodal relationship information between the plurality of data streams from the server.

[0062] In some implementations, the server may send the multimodal relationship information of the above-mentioned multiple data streams to the AF, and then the AF sends the multimodal relationship information to the SMF, and then the SMF sends the multimodal relationship information to the AMF, and finally the AMF sends the multimodal relationship information to the first base station. That is, the server may send the multimodal relationship information to the first base station through the network element AF-SMF-AMF of the core network.

[0063] In some implementations, the aforementioned multiple data streams may refer to data in an XR multimodal service, or data in a federated learning multimodal service, or data in other types of multimodal services. This application does not impose specific limitations on this. It should be understood that when the multiple data streams are data in an XR multimodal service, the server for the multiple data streams is an XR server; when the multiple data streams are data in a federated learning multimodal service, the server for the multiple data streams is a federated learning server.

[0064] In some implementations, if the above-mentioned multiple terminal devices are respectively within the coverage of multiple base station devices (such as the first base station and the second base station), the multiple base station devices are connected to the terminal devices within the coverage of their corresponding cells. The first network element can send the multimodal relationship between the data streams of the multiple terminal devices within the cell coverage of the above-mentioned multiple base station devices to the first base station, so that the first base station can determine the timing relationship of the multiple data streams. Of course, the first network element can also only send the multimodal relationship between the data streams of the terminal devices within the cell coverage of the first base station to the first base station. The following is an example.

[0065] For example, if the multiple base stations include a first base station and a second base station, the multiple terminal devices include a first terminal device, a second terminal device, and a third terminal device, the first terminal device and the second terminal device are located within the coverage area of ​​the cell of the first base station and are both connected to the first base station; the third terminal device is located within the coverage area of ​​the cell of the second base station and is connected to the third base station. The multiple data streams include a first data stream, a second data stream, and a third data stream. The first data stream belongs to the data stream of the first terminal device, the second data stream belongs to the data stream of the second terminal device, and the third data stream belongs to the data stream of the third terminal device.

[0066] In some examples, the first network element may send, to the first base station, multimodal relationships between data streams of multiple terminal devices within the cell coverage of multiple base station devices. For example, the first network element may send, to the first base station, multimodal relationship information between the first data stream, the second data stream, and the third data stream. Of course, the first network element may also send, to the second base station, multimodal relationship information between the first data stream, the second data stream, and the third data stream.

[0067] In other examples, the first network element may send the multimodal relationship between the data streams of multiple terminal devices within the cell coverage of the first base station to the first base station. For example, the first network element may send the multimodal relationship information between the first data stream and the second data stream to the first base station.

[0068] It should be understood that the second base station may be a base station device different from the first base station, and the second base station may be any type of base station device mentioned above.

[0069] It should be understood that the multimodal relationship information between the first data stream, the second data stream, and the third data stream can be used to indicate the existence of a multimodal relationship between the first data stream, the second data stream, and the third data stream. Similarly, the multimodal relationship information between the first data stream and the second data stream can be used to indicate the existence of a multimodal relationship between the first data stream and the second data stream.

[0070] The above mainly describes the perspective from which the first base station obtains multimodal relationship information from the core network. The following, in conjunction with Figure 5, provides a detailed example of the perspective from which the first base station obtains multimodal relationship information from the terminal device.

[0071] 5 , in step S510 , the first terminal device may send second information to the first base station, where the second information includes multimodal relationship information of the multiple data streams. It should be understood that the first terminal device is any one of the multiple terminal devices.

[0072] That is to say, the first base station can receive one or more information from some or all of the above-mentioned multiple terminal devices to obtain multimodal relationship information of multiple data streams.

[0073] In some implementations, the second information may be carried in a radio resource control (RRC) message. For example, the second information may be carried in UE assistance information in the RRC message.

[0074] In some implementations, the access layer of the first terminal device may send multimodal relationship information of multiple data streams to the first base station via an RRC message.

[0075] In some implementations, the client of the first terminal device may send multimodal relationship information of multiple data streams to the access layer of the first terminal device. The access layer of the first terminal device may then send the multimodal relationship information of the multiple data streams to the first base station via an RRC message. It should be understood that the client of the first terminal device may communicate with the server of the multiple data streams to obtain the multimodal relationship information.

[0076] In some implementations, the second information may also be carried in a MAC CE message, that is, the first terminal device may send multimodal relationship information of multiple data streams to the first base station via a MAC CE message.

[0077] It should be understood that the first terminal device can send part or all of the multimodal relationship information of multiple data streams to the first base station, and this application does not impose any specific restrictions on this.

[0078] It should be understood that when the first terminal device sends multimodal relationship information to the first base station, the first terminal device also needs to inform the other terminal devices that have multimodal services between it and the first terminal device, so that the first base station can schedule data streams for multiple terminal devices. Therefore, the first terminal device may also send the application layer identifier or other high-layer identifier of the second terminal device to the first base station. The second terminal device may refer to any terminal device among the multiple terminal devices except the first terminal device.

[0079] In some implementations, the second information may also include an application layer identifier of the second terminal device.

[0080] It should be understood that since the client of the first terminal device belongs to the application layer, when sending the identifier of the second electronic device to the first base station, the client of the first terminal device can only send the application layer identifier of the second electronic device to the first base station device. However, the first base station cannot identify the application layer identifier of the second terminal device, so the first base station also needs to determine the identifier of the second terminal device. As an example, if the second terminal device and the first terminal device belong to the same cell, the first base station needs to determine the access layer identifier C-RNTI of the second terminal device; if the second terminal device and the first terminal device belong to different cells, the first base station needs to determine the core network identifier S-TMSI of the second terminal device.

[0081] In some implementations, the first base station may be configured to determine the access network identifier of the second terminal device based on the application layer identifier of the second terminal device. For example, the first base station may be configured to determine the access network identifier (C-RNTI) of the second terminal device by querying the core network or a server for multiple data flows based on the application layer identifier of the second terminal device. The first base station may then schedule the data flow of the second terminal device based on the multimodal relationship described above and based on the access network identifier of the second terminal device.

[0082] In some implementations, the methods for the first base station to obtain the multimodal relationship of the same service can be used in combination. As an example, the first base station can obtain the multimodal relationship of multiple data streams in the same service from the first terminal device side and the core network side at the same time. For example, the first base station can obtain the multimodal relationship of multiple uplink data streams from the first terminal device side, and obtain the multimodal relationship of multiple downlink data streams from the core network side. Of course, the first base station can also obtain the multimodal relationship of multiple downlink data streams from the first terminal device side, and obtain the multimodal relationship of multiple uplink data streams from the core network side.

[0083] In step S320, the first base station schedules multiple data streams of multiple terminal devices according to the multimodal relationship information.

[0084] In some implementations, when multiple terminal devices are located in the same cell, they can be scheduled using group scheduling. That is, the first base station can use group scheduling to schedule multiple data streams from the multiple terminal devices based on multimodal relationship information. This helps reduce air interface consumption at the first base station and improve scheduling efficiency.

[0085] As an example, an application scenario of group scheduling may be: multiple users participate in the same game, and these users may be geographically located in the same cell.

[0086] In some implementations, in a group scheduling scenario, before the first base station schedules multiple data streams of multiple terminal devices based on multimodal relationship information, the first base station is also used to configure a group scheduling identifier and / or delay information associated with the group scheduling identifier for the multiple terminal devices.

[0087] As an example, a first base station may send configuration information to multiple terminal devices to configure group scheduling identifiers and delay information for the multiple terminal devices. Taking the first terminal device as an example, the first base station may send first configuration information to the first terminal device among the multiple terminal devices, where the first configuration information is used to indicate one or more of the following: a first identifier for group scheduling; and delay information associated with the first identifier.

[0088] In some implementations, the first identifier may be a group identifier (such as G-RNTI); the first identifier may also be an identifier of the first terminal device (such as an access network identifier C-RNTI).

[0089] As an example, if the identifier used for group scheduling by terminal device UE1 is group identifier G-RNTI1, the delay information associated with G-RNTI1 (i.e., the delay information for transmitting the data flow to UE1 identified by G-RNTI1) is 0ms, the identifier used for group scheduling by terminal device UE2 is group identifier G-RNTI2, the delay information associated with G-RNTI2 (i.e., the delay information for transmitting the data flow to UE2 identified by G-RNTI2) is 2ms, and the identifier used for group scheduling by terminal device UE3 is group identifier G-RNTI3, the delay information associated with G-RNTI3 (i.e., the delay information for transmitting the data flow to UE3 identified by G-RNTI3) is 4ms; on this basis, the first base station can send data flow X (Flow X) to UE1 at time T, send data flow Y (Flow Y) to UE2 at time T+2, and send data flow Z (Flow Z) to UE3 at time T+4.

[0090] It should be noted that the values ​​of the group identifiers used for group scheduling may be the same. For example, the values ​​of the group identifiers G-RNTI1, G-RNTI2, and G-RNTI3 may be the same.

[0091] In some implementations, the first base station may use downlink control information (DCI) to schedule the data flow of the terminal device.

[0092] As an example, a first base station may send a second DCI to a first terminal device, where the second DCI may be used to schedule a data stream for the first terminal device. The first terminal device may then receive the data stream from the first terminal device based on the second DCI. The first terminal device may be any one of multiple terminal devices. In other words, the first base station may send corresponding DCI information to each of the multiple terminal devices to schedule the data streams of the multiple terminal devices.

[0093] In some embodiments, if the first data stream of a first terminal device among multiple terminal devices is transmitted earlier than the second data stream of a second terminal device among the multiple terminal devices, when the first base station uses DCI to schedule the data stream of the terminal device, the second terminal device can infer the time-frequency resource where the second data stream of the second terminal device is located based on the DCI of the first data stream and the delay information of the second data stream. In this scenario, the first base station does not need to send DCI information to terminal devices other than the first terminal device (such as the second terminal device), which helps save downlink network resources of the first base station.

[0094] In some implementations, the DCI of the first data stream may be sent encrypted via the G-RNTI, and the DCI of the first data stream may also be sent encrypted via the C-RNTI of the first terminal. The application does not impose any specific restrictions on this.

[0095] In some implementations, when the first base station uses the first DCI to schedule the data stream of the first terminal device, it also includes: the first base station sends the data stream of the first terminal device (such as the first data stream) to the first terminal device.

[0096] In some implementations, the multiple terminal devices include a first terminal device and a second terminal device. The first base station can send a first DCI to the first terminal device, and the first DCI can be used to schedule a data stream of the first terminal device.

[0097] In some implementations, the first DCI is also used to indicate a data stream for a second terminal device among the multiple terminal devices. That is, in addition to the first terminal device, the other terminal devices among the multiple terminal devices also need to monitor their own DCI. For example, the first base station is further configured to send a second DCI to the second terminal device, and the second DCI can be used to schedule the data stream for the second terminal device.

[0098] In some implementations, the first DCI is also used to schedule a data stream for a second terminal device among the multiple terminal devices. That is, other terminal devices among the multiple terminal devices, except for the first terminal device, do not need to monitor their own DCI. As long as they monitor the first DCI, they can use the first DCI to infer the time-frequency resource location of their own data.

[0099] In some implementations, when multiple terminal devices are respectively within the coverage of multiple base station devices (such as a first base station and a second base station), the multiple base station devices can be used to jointly schedule multiple data streams of the multiple terminal devices to realize multimodal services.

[0100] It should be noted that when multiple base stations jointly schedule multiple data streams of multiple terminal devices, multiple base stations can communicate with each other. For example, multiple base stations can exchange information via an Xn interface.

[0101] In some implementations, before using multiple base station devices to jointly schedule multiple data streams of multiple terminal devices, multiple base station devices (such as a first base station and a second base station) can first negotiate the scheduling timing of the multiple data streams. The multiple base station devices negotiating the scheduling timing of the multiple data streams can mean that the multiple base station devices align the scheduling times of the multiple data streams. Then, the multiple base stations can schedule the multiple data streams based on the aligned time and multimodal relationship to meet the multimodal service needs.

[0102] As an example, multiple base station devices negotiate the scheduling timing of multiple data streams, which means that multiple base station devices can negotiate the scheduling timing of multiple data streams based on clock signals. Taking the first data stream and the third data stream in the above text as an example, for example, the clock signal of the first data stream (such as 12:0:00) corresponds to the clock signal of the third data stream (such as 12:0:00). Then, multiple base stations can schedule multiple data streams of multiple terminal devices according to the above multimodal relationship based on the aligned clock signals (i.e., scheduling timing).

[0103] As another example, multiple base station devices negotiate the scheduling timing of multiple data streams, which means that multiple base station devices can negotiate the scheduling timing of multiple data streams based on the system frame number (SFN). Taking the first data stream and the third data stream in the above text as an example, for example, the system frame number SFN 5 of the first data stream corresponds to the system frame number SFN 437 of the third data stream. For another example, the system frame number SFN 6 of the first data stream corresponds to the system frame number SFN 438 of the third data stream, and so on. Then, multiple base stations can schedule multiple data streams of multiple terminal devices based on the aligned system frame number according to the above-mentioned multimodal relationship. The following takes the alignment of system frame number SFN as an example to illustrate the way in which multiple base stations jointly schedule data streams of multiple terminal devices.

[0104] As an example, if the multiple base stations include the first base station and the second base station mentioned above, the system frame number SFN 5 of the first data stream corresponds to the system frame number SFN 437 of the third data stream, and the multi-mode relationship between the first data stream and the third data stream is that the first data stream is sent 30ms earlier than the third data stream, then the first base station can send the first data stream to the first terminal device at the time "SFN=5", and the second base station can send the third data stream to the second terminal device at the time "SFN=440" 3 SFNs later.

[0105] As mentioned above, if the above-mentioned multiple terminal devices are respectively within the coverage of multiple base station devices (such as the first base station and the second base station), when the first network element sends the multimodal relationship information of multiple data streams to the first base station, the first network element can filter the multimodal information to ensure the security of the data and maintain the existing architecture of the first network element. In this way, the first base station cannot obtain the multimodal relationship between the first data stream and the third data stream mentioned above, and the second base station cannot obtain the multimodal relationship between the third data stream and the first data stream and the second data stream. At this time, the second network element (such as UPF) can schedule multiple data streams of multiple terminal devices.

[0106] As an example, if the multimode relationship between the first data stream and the third data stream is that the first data stream is sent a first time period (e.g., 30ms) earlier than the third data stream, the second network element can first send the first data stream to the first base station, and then send the third data stream to the second base station after the first time period. In this way, the second network element can indirectly control the air interface transmission timing of the base station device (e.g., the first base station and the second base station) by controlling the timing of sending data streams to the base station device (e.g., the first base station and the second base station), thereby realizing multimodal service functions.

[0107] As mentioned above, if multiple terminal devices are respectively within the coverage of multiple base station devices (such as the first base station and the second base station), the first network element can send the multimodal relationship between the data streams of multiple terminal devices within the coverage of the multiple base station devices to the first base station, so that the first base station can determine the timing relationship of the multiple data streams. In this case, the first network element does not need to filter the multimodal relationship information of the multiple data streams. Multiple base stations can schedule the data streams of multiple terminal devices based on the multimodal relationship. The following is an example of this joint scheduling method.

[0108] As an example, if the multimodal relationship between the first data stream and the third data stream is that the first data stream is sent earlier than the third data stream by a first time period (such as 30ms), the sending time of the first data stream is the first time period. Then, the first base station can send the first data stream at the first time period (such as the above-mentioned SFN 5 time period) according to the above-mentioned multimodal relationship. Then, the second base station can send the third data stream at the second time period (such as the above-mentioned SFN 440 time period) according to the multimodal relationship. The second time period is later than the first time period by the first time period, thereby realizing the multimodal service function of multiple data streams.

[0109] It should be understood that before the second base station transmits the third data stream at the second time, it must have already obtained the transmission time information of the first data stream. In this way, the second base station can determine to transmit the third data stream at the second time based on the multimodal relationship. The following describes an example of how a base station device obtains the transmission time information of a data stream.

[0110] In some implementations, the second network element may send the transmission time information of the data stream of its corresponding base station to the base station device. For example, the second network element may send the transmission time information of the third data stream of the second base station to the first base station device.

[0111] As an example, if the multimode relationship between the first data stream and the third data stream is that the first data stream is sent a second time period (e.g., 30ms) later than the third data stream, and the third data stream is sent at the first time, a second network element in the core network sends the first data stream to the first base station, and the first data stream includes transmission time information of the third data stream (e.g., the second base station sends the third data stream at the first time). In this way, the first base station can send the first data stream at the second time based on the transmission time information of the third data stream. In this case, the second time is later than the first time by the first time period.

[0112] In some implementations, if the multimode relationship between the first data stream and the third data stream is that the first data stream is sent earlier than the third data stream by a first time period (e.g., 30 ms), the sending time of the first data stream is the first time, and the first base station may send transmission time information of the first data stream to the second network element of the core network. The transmission time information may, for example, be that the first base station sends the first data stream at the first time.

[0113] It should be noted that before the first base station sends the transmission time information of the first data stream to the second network element of the core network, the first base station may also obtain information that a third terminal device among the multiple terminal devices is connected to the second base station. In other words, the first base station may learn that terminal devices of the same group are located within the coverage area of ​​the second base station's cell.

[0114] In some implementations, if the multimode relationship between the first data stream and the third data stream is that the first data stream is sent earlier than the third data stream by a first time period (e.g., 30ms), the sending time of the first data stream is the first time, and the first base station can send the transmission time information of the first data stream to the second network element after receiving the first data stream sent by the second network element.

[0115] In some implementations, the second network element may be a user plane network element function entity UPF.

[0116] It can be seen from the above description that in an embodiment of the present application, the first base station can first obtain the multimodal relationship between multiple data streams, and then, the first base station schedules multiple data streams of multiple terminal devices according to the multimodal relationship, thereby realizing multimodal services between multiple terminal devices.

[0117] It should be noted that the multimodal relationship in the embodiment of the present application can be valid for both uplink and downlink, or can be configured only for uplink or downlink, that is, the multimodal relationship of the uplink data flow and the downlink data flow is independent.

[0118] It should be understood that, for downlink data flows, the timing relationship may be considered during scheduling, and for uplink data flows, the timing relationship may be considered during allocation of uplink resources.

[0119] As an example, if the multiple base stations include a first base station and a second base station, the multiple terminal devices include a first terminal device, a second terminal device, and a third terminal device, the first terminal device and the second terminal device are connected to the first base station, and the third terminal device is connected to the second base station. The multiple data streams include a first data stream, a second data stream, and a third data stream. The first data stream belongs to the data stream of the first terminal device, the second data stream belongs to the data stream of the second terminal device, and the third data stream belongs to the data stream of the third terminal device. The timing relationship between the multiple data streams is that the first data stream is delivered before the second data stream, and the first data stream is delivered before the third data stream. For the first terminal device and the second terminal device in the cell of the same base station, when allocating uplink resources, based on the above timing relationship, the first base station first schedules the first data stream of the first terminal device, and then schedules the second data stream of the second terminal device. For the first terminal device and the third terminal device in different cells of different base stations, the first base station and the second base station can coordinate the data scheduling timing, with the first base station first scheduling the first data stream of the first terminal device, and the second base station then scheduling the third data stream of the third terminal device.

[0120] In some implementations, the above-mentioned multimodal relationship may refer to the existence of a transmission timing relationship between multiple data streams, and the multimodal relationship may include one or more of the following timing relationships: the timing relationship between the downlink data sent by the base station or other network equipment (such as UPF) to the terminal device; the timing relationship between the downlink data submitted by the access layer of the terminal device to the upper layer; the timing relationship between the uplink data transmitted by the terminal device to the base station; the timing relationship between the uplink data submitted by the base station to the core network network element.

[0121] As mentioned above, the first base station can obtain the multimodal relationship information of the above-mentioned multiple data flows from the core network. The following is a more detailed example of obtaining the multimodal relationship information from the core network in conjunction with Figures 6 and 7. Figure 6 is a schematic diagram of a possible architecture for obtaining multimodal relationship information from the core network provided in an embodiment of the present application. It should be understood that there is a multimodal relationship between the data flow X (Flow X) of the terminal device UE A1, the data flow Y (Flow Y) of the terminal device UE A2, and the data flow Z (Flow Z) of the terminal device UE B1.

[0122] As shown in Figure 6, the server can provide the AMF with the multimodal relationship between Flow X, Flow Y, and Flow Z via the core network's AF-SMF. In some implementations, the AMF filters this multimodal relationship information, only notifying the base station of the multimodal relationship between data flows of connected terminal devices within its coverage area. For example, the AMF only notifies gNB A (e.g., the first base station) of the multimodal relationship between Flow X and Flow Y, and does not notify gNB B (e.g., the second base station) of the multimodal relationship between data flow Flow Z and Flow X and Flow Y. This helps improve data transmission security and avoids changes to the AMF's existing communication architecture.

[0123] FIG7 is a schematic diagram of another possible architecture for obtaining multimodal relationship information from the core network shown in FIG6 .

[0124] As shown in Figure 7 , the server can provide the AMF with the multimodal relationship between Flow X, Flow Y, and Flow Z via the core network's AF-SMF. In some implementations, the AMF enhances this multimodal relationship information (i.e., the AMF does not filter the multimodal relationship) and notifies gNB A and gNB B of the multimodal relationship between Flow X, Flow Y, and Flow Z. For example, the AMF may notify gNB A of the multimodal relationship between data flows Flow X and Flow Y, and also of the multimodal relationship between Flow X, Flow Y, and Flow Z. For another example, the AMF may notify gNB B of the multimodal relationship between data flow Flow Z and Flow X and Flow Y.

[0125] As mentioned above, the first base station can obtain multimodal relationship information of multiple data streams from the terminal device. The following is a more detailed example of obtaining multimodal relationship information from the terminal device in conjunction with Figure 8. Figure 8 is a possible architectural diagram for obtaining multimodal relationship information from a terminal device provided in an embodiment of the present application. It should be understood that there is a multimodal relationship between the data flow X (Flow X) of the terminal device UE A1 (such as the first terminal device) and the data flow Y (Flow Y) of the terminal device UE A2 (not shown in the figure).

[0126] As shown in Figure 8, the client of UE A1 can communicate with the server, so the client of UE A1 can obtain the multimodal relationship between Flow X and Flow Y. It should be understood that the client of UE A1 belongs to the application layer, and the client can be an application APP.

[0127] In some implementations, the application layer of UE A1 sends the multimodal relationship information between Flow X and Flow Y to the access layer of UE A1. Then, the access layer of UE A1 can send the multimodal relationship to gNB A (such as the first base station) through an RRC message, or the access layer of UE A1 can send the multimodal relationship to gNB A through a MAC CE message.

[0128] To further understand the wireless communication method described above in the embodiments of the present application, the wireless communication method is described in more detail below with reference to Figures 9 and 10. Assume that a first terminal device is within the coverage of cell A of gNB A (e.g., a first base station) and is connected to gNB A, and a third terminal device is within the coverage of cell B of gNB B (e.g., a second base station) and is connected to gNB B. A multimodal relationship exists between data flow X (Flow X) of the first terminal device and data flow Z (Flow Z) of the third terminal device, and Flow X is transmitted or delivered 30 ms earlier than Flow Z.

[0129] FIG9 is a flow chart of another wireless communication method provided by an embodiment of the present application. As shown in FIG9 , the wireless communication method includes steps: S910 to S970.

[0130] In step S910, gNB A and gNB B negotiate the data scheduling sequence. For example, SFN 5 of gNB A's cell A corresponds to SFN 437 of gNB B's cell B. For another example, SFN 6 of cell A corresponds to SFN 438 of cell B.

[0131] In step S920, the AMF sends the multimodal relationship information between Flow X and Flow Y to gNB A and gNB B.

[0132] In step S930, the UPF transmits Flow X to gNB A.

[0133] In step S940, after receiving Flow X, gNB A notifies the UPF of the sending time of Flow X (it should be understood that the sending time can refer to a sending time that has already occurred in the past or a sending time corresponding to the future sending behavior). For example, the UPF is notified that "gNB A sends Flow X data at SFN 5."

[0134] In step S950, the UPF transmits data Flow Z to gNB B and forwards the data "gNB A sends Flow X data at SFN 5".

[0135] In step S960, gNB A sends data flow Flow X to the first terminal device at SFN 5.

[0136] In step S970, gNB B sends data flow Flow Z to the third terminal device at SFN 440, which is 3 SFNs later.

[0137] In some implementations, the UPF can also indirectly control the data transmission timing of the base station equipment air interface by controlling the timing of data transmission to the base station equipment. For example, the UPF first transmits Flow X data to gNB A, and then transmits Flow Z data to gNB B after 30ms.

[0138] In some implementations, terminal devices UE1, UE2, and UE3 are within the coverage area of ​​the same cell of a first base station. A multimodal relationship exists between UE1's data flow 1 (Flow1), UE2's data flow 2 (Flow2), and UE3's data flow 3 (Flow3). Flow1 is transmitted 2 ms earlier than Flow2, and Flow1 is transmitted 2 ms earlier than Flow4. The following, with reference to Figure 10, illustrates an example of scheduling multiple data flows for multiple terminal devices within the same cell coverage area.

[0139] Figure 10 is a flow chart of another wireless communication method provided in an embodiment of the present application. As shown in Figure 10 , the wireless communication method includes steps: S1010 to S1040.

[0140] In step S1010, after acquiring the multimodal relationship among Flow1, Flow2, and Flow3, the first base station may configure a group identifier G-RNTI for UE1, UE2, and UE3, and configure delay information for each UE.

[0141] It should be noted that this application does not impose specific restrictions on the configuration method of the group identifiers and delay information of multiple terminal devices. For example, the first base station may configure the group identifiers and delay information of multiple terminal devices through an RRC message or a MAC CE; for another example, the first base station may configure the group identifiers and delay information of multiple terminal devices through a multicast message, or the first base station may configure the group identifier and delay information for each of the multiple terminal devices individually.

[0142] In some implementations, the group identifier of UE1 is G-RNTI1, and the data stream transmission delay of UE1 is 0ms; the group identifier of UE2 is G-RNTI2, and the data stream transmission delay of UE2 is 2ms; the group identifier of UE3 is G-RNTI3, and the data stream transmission delay of UE3 is 4ms.

[0143] In step S1020, the first base station sends Flow1 data to UE1 at time T.

[0144] In step S1030, the first base station sends Flow2 data to UE2 at time T+2.

[0145] In step S1040, the first base station sends Flow3 data to UE3 at time T+4.

[0146] In some implementations, the first base station may notify UE2 and UE3 at time T that data is about to be sent. The first base station does not transmit DCI information at time T+2 and T+4. UE2 and UE3 infer the wireless resources and modulation mode of the local data based on the DCI at time T.

[0147] In some implementations, the first base station may send DCI to UE1 at time T to instruct UE1 to receive UE1's data stream; the first base station may send DCI to UE2 at time T+2 to instruct UE2 to receive UE2's data stream; the first base station may send DCI to UE3 at time T+4 to instruct UE3 to receive UE3's data stream.

[0148] In some implementations, the first base station may use the access network identifier C-RNTI of the terminal device instead of the group identifier G-RNTI.

[0149] In some implementations, the first base station may first configure the timing relationship among UE1, UE2, and UE3, and then allocate uplink resources in sequence.

[0150] In some implementations, when allocating uplink resources, one uplink resource may be allocated to each of UE1, UE2, and UE3 at one time, or uplink resources may be allocated three times, first to UE1, and then to UE2 and UE3.

[0151] The method embodiments of the present application are described in detail above, and the device embodiments of the present application are described in detail below. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, so for parts not described in detail, reference can be made to the above method embodiments.

[0152] FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device is a first base station, and the communication device 1100 may include an acquisition unit 1110 and a scheduling unit 1120.

[0153] The acquiring unit 1110 is configured to acquire multimodal relationship information, where the multimodal relationship information is used to indicate a multimodal relationship between a plurality of data streams belonging to a plurality of terminal devices.

[0154] The scheduling unit 1120 is configured to schedule the multiple data streams of the multiple terminal devices according to the multimodal relationship information.

[0155] In some implementations, the acquisition unit is used to: receive first information sent by a first network element of a core network, where the first information includes the multimodal relationship information.

[0156] In some implementations, the acquisition unit is used for: the first base station receives second information sent by a first terminal device, the second information includes the multimodal relationship information, and the first terminal device is one of the multiple terminal devices.

[0157] In some implementations, the multimodal relationship information is used to indicate one or more of the following: a multimodal relationship exists between the first data stream and the second data stream; a multimodal relationship exists between the first data stream and the third data stream; wherein the first data stream and the second data stream both belong to data streams of terminal devices within the cell coverage of the first base station, and the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data stream of terminal devices within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

[0158] In some implementations, the communication device further includes: a first sending unit, configured to send transmission time information of the first data stream to a second network element of a core network.

[0159] In some implementations, the communication device further includes: a negotiation unit, configured to negotiate a scheduling timing of data with the second base station.

[0160] In some implementations, the second information is carried in a UE assistance message.

[0161] In some implementations, the multiple terminal devices include a second terminal device, and the second information includes an application layer identifier of the second terminal device.

[0162] In some implementations, the scheduling method of the multiple terminal devices is a group scheduling method.

[0163] In some implementations, the communication device further includes: a second sending unit, configured to send first configuration information to a first terminal device among the multiple terminal devices before scheduling the multiple data streams of the multiple terminal devices based on the multimodal relationship information, wherein the first configuration information is used to indicate one or more of the following: a first identifier for group scheduling; and delay information associated with the first identifier.

[0164] In some implementations, the first identifier is a group identifier; or, the first identifier is an identifier of the first terminal device.

[0165] In some implementations, the scheduling unit is used to: send a first DCI to a first terminal device among the multiple terminal devices, where the first DCI is used to schedule a data stream of the first terminal device; wherein the first DCI is also used to indicate that a data stream of a second terminal device among the multiple terminal devices is about to be transmitted.

[0166] In some implementations, the multimodal relationship information includes one or more of the following: the timing relationship between downlink data sent by the base station to the terminal device; the timing relationship between the downlink data submitted by the access layer of the terminal device to the upper layer; the timing relationship between the uplink data transmitted by the terminal device to the base station; the timing relationship between the uplink data submitted by the base station to the core network element.

[0167] FIG12 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device is a core network device, and the communication device 1200 may include a sending unit 1210.

[0168] The sending unit 1210 is used to send first information to the first base station, where the first information includes multimodal relationship information; wherein the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices.

[0169] In some implementations, the multimodal relationship information is used to indicate one or more of the following: a multimodal relationship exists between the first data stream and the second data stream; a multimodal relationship exists between the first data stream and the third data stream; wherein the first data stream and the second data stream both belong to data streams of terminal devices within the cell coverage of the first base station, and the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data stream of terminal devices within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

[0170] In some implementations, the multimodal relationship information includes one or more of the following: the timing relationship between downlink data sent by the base station to the terminal device; the timing relationship between the downlink data submitted by the access layer of the terminal device to the upper layer; the timing relationship between the uplink data transmitted by the terminal device to the base station; the timing relationship between the uplink data submitted by the base station to the core network element.

[0171] FIG13 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. The terminal device is a first terminal device, and the terminal device 1300 may include a first sending unit 1310.

[0172] The first sending unit 1310 is used to send second information to the first base station, where the second information includes multimodal relationship information; wherein the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, the multiple data streams belong to multiple terminal devices, and the first terminal device is one of the multiple terminal devices.

[0173] In some implementations, the multimodal relationship information is used to indicate one or more of the following: a multimodal relationship exists between the first data stream and the second data stream; a multimodal relationship exists between the first data stream and the third data stream; wherein the first data stream and the second data stream both belong to data streams of terminal devices within the cell coverage of the first base station, and the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data stream of terminal devices within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

[0174] In some implementations, the second information is carried in a UE assistance message.

[0175] In some implementations, the multiple terminal devices include a second terminal device, and the second information includes an application layer identifier of the second terminal device.

[0176] In some implementations, the first terminal device further includes: a first receiving unit for receiving first configuration information sent by the first base station, where the first configuration information is used to indicate one or more of the following: a first identifier for group scheduling; and delay information associated with the first identifier.

[0177] In some implementations, the first identifier is a group identifier; or the first identifier is an identifier of a terminal device among the multiple terminal devices.

[0178] In some implementations, the first terminal device further includes: a second receiving unit, configured to receive a first DCI sent by the first base station, wherein the first DCI is used to schedule a data stream of the first terminal device; wherein the first DCI is also used to indicate that a data stream of a second terminal device among the multiple terminal devices is about to be transmitted.

[0179] In some implementations, the first terminal device further includes: a third receiving unit, configured to receive a second DCI sent by the first base station, wherein the second DCI is used to schedule the data stream of the first terminal device; and a fourth receiving unit, configured to receive the data stream of the first terminal device according to the second DCI.

[0180] In some implementations, the multimodal relationship information includes one or more of the following: the timing relationship between downlink data sent by the base station to the terminal device; the timing relationship between the downlink data submitted by the access layer of the terminal device to the upper layer; the timing relationship between the uplink data transmitted by the terminal device to the base station; the timing relationship between the uplink data submitted by the base station to the core network element.

[0181] In an optional embodiment, the sending unit and receiving unit mentioned above may be a transceiver 1430, and the communication device 1100, the communication device 1200 and the terminal device 1300 may further include a processor 1410 or a memory 1420, as specifically shown in FIG14 .

[0182] Figure 14 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 14 indicate that the unit or module is optional. Apparatus 1400 may be used to implement the method described in the above method embodiment. Apparatus 1400 may be a chip, a terminal device, or a network device.

[0183] The device 1400 may include one or more processors 1410. The processor 1410 may support the device 1400 to implement the method described in the above method embodiment. The processor 1410 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0184] The apparatus 1400 may further include one or more memories 1420. The memories 1420 store programs that can be executed by the processor 1410, causing the processor 1410 to perform the methods described in the above method embodiments. The memories 1420 may be independent of the processor 1410 or integrated into the processor 1410.

[0185] The apparatus 1400 may further include a transceiver 1430. The processor 1410 may communicate with other devices or chips via the transceiver 1430. For example, the processor 1410 may transmit and receive data with other devices or chips via the transceiver 1430.

[0186] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0187] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0188] The present application also provides a computer program that can be applied to a terminal device or network device provided in the present application, and enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0189] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first", "second", "third", and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0190] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0191] In the embodiments of this application, the term "include" can refer to direct inclusion or indirect inclusion. Alternatively, the term "include" in the embodiments of this application can be replaced with "indicates" or "is used to determine." For example, "A includes B" can be replaced with "A indicates B" or "A is used to determine B."

[0192] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0193] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0194] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0195] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0196] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0197] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0198] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0199] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0200] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0201] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it 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. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0202] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, characterized in that, Including: Obtain multimodal relationship information, where the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices; Schedule the multiple data streams of the multiple terminal devices according to the multimodal relationship information.

2. The method according to claim 1, characterized in that, The obtaining of the multimodal relationship information includes: Receive first information sent by a first network element of the core network, where the first information includes the multimodal relationship information.

3. The method according to claim 1, wherein The obtaining of the multimodal relationship information includes: Receive second information sent by a first terminal device, where the second information includes the multimodal relationship information, and the first terminal device is one of the multiple terminal devices.

4. The method according to any one of claims 1 to 3, characterized in that, The multimodal relationship information is used to indicate one or more of the following: There is a multimodal relationship between a first data stream and a second data stream; There is a multimodal relationship between the first data stream and a third data stream; Wherein, the first data stream and the second data stream both belong to the data streams of the terminal devices within the cell coverage of the first base station, the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data stream of the terminal device within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

5. The method according to claim 4, characterized in that The method further includes: The first base station sends transmission time information of the first data stream to a second network element of the core network.

6. The method according to claim 4, wherein The method further includes: Negotiate the scheduling timing of data with the second base station.

7. The method according to claim 3, characterized in that, The second information is carried in a UE assistance message.

8. The method according to claim 3 or 7, characterized in that The multiple terminal devices include a second terminal device, and the second information includes an application layer identifier of the second terminal device.

9. The method according to claim 1, wherein The scheduling mode of the multiple terminal devices is a group scheduling mode.

10. The method according to claim 9, characterized in that, Before the first base station schedules the multiple data streams of the multiple terminal devices according to the multimodal relationship information, the method further includes: Send first configuration information to a first terminal device among the multiple terminal devices, where the first configuration information is used to indicate one or more of the following: A first identifier for group scheduling; Delay information associated with the first identifier.

11. The method according to claim 10, wherein The first identifier is a group identifier; or, the first identifier is an identifier of the first terminal device.

12. The method according to any one of claims 9 to 11, characterized in that, The scheduling of the multiple data streams of the multiple terminal devices according to the multimodal relationship information includes: Send a first DCI to a first terminal device among the multiple terminal devices, where the first DCI is used to schedule the data stream of the first terminal device; wherein, the first DCI is further used to indicate the data stream of a second terminal device among the multiple terminal devices.

13. The method according to any one of claims 1 to 12, characterized in that The multimodal relationship information includes one or more of the following: The timing relationship between downlink data sent by the base station to the terminal device; The timing relationship between downlink data delivered from the access layer of the terminal device to the upper layer; The timing relationship between uplink data transmitted by the terminal device to the base station; The timing relationship between uplink data delivered by the base station to the core network element.

14. A wireless communication method, characterized in that, Including: Send first information to a first base station, where the first information includes multimodal relationship information; Among them, the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices.

15. The method according to claim 14, wherein The multimodal relationship information is used to indicate one or more of the following: There is a multimodal relationship between the first data stream and the second data stream; There is a multimodal relationship between the first data stream and the third data stream; Among them, the first data stream and the second data stream both belong to the data streams of the terminal devices within the cell coverage of the first base station. The terminal devices within the cell coverage of the first base station are connected to the first base station. The third data stream belongs to the data stream of the terminal device within the cell coverage of the second base station. The terminal devices within the cell coverage of the second base station are connected to the second base station.

16. The method according to claim 14 or 15, characterized in that, The multimodal relationship information includes one or more of the following: The timing relationship between the downlink data sent by the base station to the terminal device; The timing relationship between the downlink data delivered from the access layer to the upper layer of the terminal device; The timing relationship between the uplink data transmitted by the terminal device to the base station; The timing relationship between the uplink data delivered by the base station to the core network element.

17. A wireless communication method, characterized in that, Including: Sending second information to the first base station, where the second information includes multimodal relationship information; Among them, the multimodal relationship information is used to indicate the multimodal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices. The first terminal device is one of the multiple terminal devices.

18. The method according to claim 17, wherein The multimodal relationship information is used to indicate one or more of the following: There is a multimodal relationship between the first data stream and the second data stream; There is a multimodal relationship between the first data stream and the third data stream; Among them, the first data stream and the second data stream both belong to the data streams of the terminal devices within the cell coverage of the first base station. The terminal devices within the cell coverage of the first base station are connected to the first base station. The third data stream belongs to the data stream of the terminal device within the cell coverage of the second base station. The terminal devices within the cell coverage of the second base station are connected to the second base station.

19. The method according to claim 17 or 18, characterized in that, The second information is carried in the UE assistance message.

20. The method according to any one of claims 17 to 19, characterized in that The multiple terminal devices include a second terminal device, and the second information includes the application layer identifier of the second terminal device.

21. The method according to any one of claims 17 to 20, characterized in that The method further includes: Receiving first configuration information sent by the first base station, where the first configuration information is used to indicate one or more of the following: The first identifier for group scheduling; The delay information associated with the first identifier.

22. The method according to claim 21, wherein The first identifier is a group identifier; or, the first identifier is the identifier of one of the multiple terminal devices.

23. The method according to claim 21 or 22, characterized in that, The method further includes: Receiving a first DCI sent by the first base station, where the first DCI is used to schedule the data stream of the first terminal device; Among them, the first DCI is further used to indicate the data stream of the second terminal device among the multiple terminal devices.

24. The method according to claim 21 or 22, characterized in that, The method further includes: Receiving a second DCI sent by the first base station, where the second DCI is used to schedule the data stream of the first terminal device; Receiving the data stream of the first terminal device according to the second DCI.

25. The method according to any one of claims 17 to 24, characterized in that, The multi-modal relationship information includes one or more of the following: The timing relationship between downlink data sent by the base station to the terminal device; The timing relationship between downlink data delivered from the access layer to the higher layer of the terminal device; The timing relationship between uplink data transmitted by the terminal device to the base station; The timing relationship between uplink data delivered by the base station to the core network element.

26. A communication device, characterized in that, The communication device is the first base station, and the communication device includes: An acquisition unit, configured to acquire multi-modal relationship information, where the multi-modal relationship information is used to indicate the multi-modal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices; A scheduling unit, configured to schedule the multiple data streams of the multiple terminal devices according to the multi-modal relationship information.

27. The device according to claim 26, characterized in that, The acquisition unit is used for: Receiving first information sent by a first network element of the core network, where the first information includes the multi-modal relationship information.

28. The device according to claim 26, wherein, The acquisition unit is used for: Receiving second information sent by a first terminal device, where the second information includes the multi-modal relationship information, and the first terminal device is one of the multiple terminal devices.

29. The device according to any one of claims 26 to 28, characterized in that, The multi-modal relationship information is used to indicate one or more of the following: There is a multi-modal relationship between a first data stream and a second data stream; There is a multi-modal relationship between the first data stream and a third data stream; Wherein, the first data stream and the second data stream both belong to the data streams of the terminal devices within the cell coverage of the first base station, the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data streams of the terminal devices within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

30. The device according to claim 29, characterized in that, The communication device further includes: A first sending unit, configured to send the transmission time information of the first data stream to a second network element of the core network.

31. The device according to claim 30, wherein The communication device further includes: A negotiation unit, configured to negotiate the scheduling timing of data with the second base station.

32. The device according to claim 28, characterized in that, The second information is carried in a UE assistance message.

33. The device according to claim 28 or 32, characterized in that, The multiple terminal devices include a second terminal device, and the second information includes the application layer identifier of the second terminal device.

34. The device according to claim 26, characterized in that, The scheduling method of the multiple terminal devices is a group scheduling method.

35. The device according to claim 34, characterized in that, Before the first base station schedules the multiple data streams of the multiple terminal devices according to the multi-modal relationship information, the communication device further includes: A second sending unit, configured to send first configuration information to a first terminal device among the multiple terminal devices, where the first configuration information is used to indicate one or more of the following: A first identifier for group scheduling; The delay information associated with the first identifier.

36. The device according to claim 35, characterized in that, The first identifier is a group identifier; or, the first identifier is the identifier of the first terminal device.

37. The device according to any one of claims 34 to 36, characterized in that, The scheduling unit is used for: Sending a first DCI to a first terminal device among the multiple terminal devices, where the first DCI is used to schedule the data stream of the first terminal device; wherein, the first DCI is further used to indicate the data stream of a second terminal device among the multiple terminal devices.

38. The device according to any one of claims 26 to 37, characterized in that, The multi-modal relationship information includes one or more of the following: The timing relationship between downlink data sent by the base station to the terminal device; The timing relationship between the downlink data submitted by the access layer of the terminal device to the upper layer; The timing relationship between the uplink data transmitted by the terminal device to the base station; The timing relationship between the uplink data submitted by the base station to the core network element.

39. A wireless communication device, characterized in that, The communication device is a core network device, and the communication device includes: A sending unit, configured to send first information to a first base station, where the first information includes multi-modal relationship information; Wherein, the multi-modal relationship information is used to indicate the multi-modal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices.

40. The device according to claim 39, wherein, The multi-modal relationship information is used to indicate one or more of the following: There is a multi-modal relationship between a first data stream and a second data stream; There is a multi-modal relationship between the first data stream and a third data stream; Wherein, the first data stream and the second data stream both belong to the data streams of the terminal devices within the cell coverage of the first base station, the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data streams of the terminal devices within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

41. The device according to claim 39 or 40, characterized in that, The multi-modal relationship information includes one or more of the following: The timing relationship between the downlink data sent by the base station to the terminal device; The timing relationship between the downlink data submitted by the access layer of the terminal device to the upper layer; The timing relationship between the uplink data transmitted by the terminal device to the base station; The timing relationship between the uplink data submitted by the base station to the core network element.

42. A terminal device, characterized in that, The terminal device is a first terminal device, and the first terminal device includes: A first sending unit, configured to send second information to a first base station, where the second information includes multi-modal relationship information; Wherein, the multi-modal relationship information is used to indicate the multi-modal relationship between multiple data streams, and the multiple data streams belong to multiple terminal devices, and the first terminal device is one of the multiple terminal devices.

43. The device according to claim 42, characterized in that, The multi-modal relationship information is used to indicate one or more of the following: There is a multi-modal relationship between a first data stream and a second data stream; There is a multi-modal relationship between the first data stream and a third data stream; Wherein, the first data stream and the second data stream both belong to the data streams of the terminal devices within the cell coverage of the first base station, the terminal devices within the cell coverage of the first base station are connected to the first base station, and the third data stream belongs to the data streams of the terminal devices within the cell coverage of the second base station, and the terminal devices within the cell coverage of the second base station are connected to the second base station.

44. The device according to claim 42 or 43, characterized in that, The second information is carried in a UE assistance message.

45. The device according to any one of claims 42 to 44, characterized in that, The multiple terminal devices include a second terminal device, and the second information includes the application layer identifier of the second terminal device.

46. The device according to any one of claims 42 to 45, characterized in that, The first terminal device further includes: A first receiving unit, configured to receive first configuration information sent by the first base station, where the first configuration information is used to indicate one or more of the following: A first identifier for group scheduling; The delay information associated with the first identifier.

47. The apparatus according to claim 46, wherein The first identifier is a group identifier; or, the first identifier is the identifier of one of the multiple terminal devices.

48. The device according to claim 46 or 47, characterized in that The first terminal device further includes: A second receiving unit, configured to receive a first DCI sent by the first base station, where the first DCI is used to schedule a data stream of the first terminal device; Wherein, the first DCI is further used to indicate a data stream of a second terminal device among the multiple terminal devices.

49. The device according to claim 46 or 47, characterized in that, The first terminal device further includes: A third receiving unit, configured to receive a second DCI sent by the first base station, where the second DCI is used to schedule the data stream of the first terminal device; A fourth receiving unit, configured to receive the data stream of the first terminal device according to the second DCI. The device according to any one of claims 42 to 49, characterized in that, The multimodal relationship information includes one or more of the following: The timing relationship between downlink data sent by a base station to a terminal device; The timing relationship between downlink data delivered from the access stratum of a terminal device to a higher layer; The timing relationship between uplink data transmitted by a terminal device to a base station; The timing relationship between uplink data delivered by a base station to a core network element.

51. A communication device, characterized in that, The communication device is a first base station, and the communication device includes a memory and a processor. The memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1-13.

52. A communication device, characterized in that, The communication device is a core network device, and the communication device includes a memory and a processor. The memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 14-16.

53. A terminal device, characterized in that, It includes a memory and a processor. The memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 17-25.

54. A device, characterized in that, It includes a processor, configured to call a program from a memory to execute the method according to any one of claims 1-13, 14-16 or 17-25.

55. A chip, characterized in that, It includes a processor, configured to call a program from a memory, such that the device installed with the chip executes the method according to any one of claims 1-13, 14-16 or 17-25.

56. A computer-readable storage medium, characterized in that, A program is stored thereon, and the program causes a computer to execute the method according to any one of claims 1-13, 14-16 or 17-25.

57. A computer program product, characterized in that, It includes a program, and the program causes a computer to execute the method according to any one of claims 1-13, 14-16 or 17-25.

58. A computer program, characterized in that, The computer program causes a computer to execute the method according to any one of claims 1-13, 14-16 or 17-25.

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