Service transmission coordination method and device

Abstract

The present disclosure provides a method and an apparatus for coordinating service transmission, the method for coordinating service transmission includes: a first terminal sends first information to a radio access network node; the first terminal receives first configuration information sent from the radio access network node, and performs corresponding configuration according to the first configuration information, the first configuration information includes at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, the first information includes at least one of an identifier of an associated terminal having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling, a type of the first link between the first terminal and the associated terminal, delay information of the first link between the first terminal and the associated terminal, an association relationship in a first service between the first terminal and the associated terminal, and information on whether the associated terminal is exempt from security verification.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to Chinese Patent Application No. 202111660854.9, filed in China on December 31, 2021, the entire contents of which are incorporated herein by reference. The present disclosure relates to the technical field of mobile communication, and in particular to a method and apparatus for coordinating service transmission. [Background technology]

[0002] In related communication technologies, most handovers are between different radio access network nodes (e.g., base stations) while the UE is moving. However, in practical applications, one user may own multiple terminals, and there is a demand to transfer a service provided by one terminal to another terminal. For example, a user may have a mobile phone and a smart watch, and when making a call on the mobile phone, if the user wants to go running but does not want to carry the mobile phone, there is a demand to switch the phone to the smart watch. Furthermore, for example, a user may have a mobile phone and an in-vehicle terminal, and when the user is in the car while making a call, there is a demand to switch the phone to the in-vehicle terminal. In these scenarios, the need for inter-UE (UE, i.e., User Equipment) handover arises.

[0003] In related art, the above transition procedure is usually realized by a method of role exchange between a master terminal and a slave terminal, and the risk of this method is that the master terminal needs to transmit some important information to the slave terminal via a Bluetooth (registered trademark) type protocol, which may be decoded. In addition, this method realizes handover between terminals based on the interface between the terminals or realizes handover between terminals in a manner that is not detected by the network, and usually requires that information interaction based on a short-range communication protocol be supported between both terminals, which may not be possible if both terminals are from different brands or manufacturers, and therefore is not versatile.

[0004] In addition, in the related art, the power of the terminal is limited, for example, the maximum transmission power of the current terminal is typically 23 dBm or 26 dBm, and it is becoming increasingly difficult to further increase the maximum transmission power, while the demand for uplink transmission is increasing, so that the aggregation of multiple terminals (i.e., UE aggregation) is used to increase the transmission power of the terminal after aggregation, and further increase the uplink coverage or uplink throughput after aggregation, thereby effectively resolving the dilemma currently faced. Currently, in the related art, customization by service is common, and the application layer maps the IP addresses of both terminals to each other, and then the application layer controls the data flow, but the drawback is that this method is only applicable to customized services, which is disadvantageous to the use of this technology in more applications.

[0005] Therefore, there is a strong demand for a coordination mode of service transmission between terminals that can expand the application range of the service coordination technology between terminals and improve versatility. Summary of the Invention [Problem to be solved by the invention]

[0006] At least one embodiment of the present disclosure provides a method and device for coordinating service transmission, which can improve the availability of service coordination technology between terminals. [Means for solving the problem]

[0007] In order to solve the above problems, the present disclosure is realized as follows.

[0008] In a first aspect, an embodiment of the present disclosure provides a method for coordinating service transmission, comprising: A first terminal transmits first information to a radio access network node, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; transmitting first information including at least one of: information on whether the associated terminal is exempt from security verification; The method includes the first terminal receiving first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, and performing corresponding configuration according to the first configuration information.

[0009] In a second aspect, an embodiment of the present disclosure provides a method for coordinating service transmission, comprising: A radio access network node receives first information from a first terminal, the first information comprising: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; receiving first information including at least one of: information indicating whether the associated terminal is exempt from security verification; The method includes the radio access network node configuring a second common logical layer corresponding to the associated terminal for the first service, and sending to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

[0010] In a third aspect, an embodiment of the present disclosure provides a terminal including a transceiver and a processor, The transceiver transmits first information to a radio access network node, the first information comprising: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The processor provides a terminal for receiving first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, and for performing corresponding configuration according to the first configuration information.

[0011] In a fourth aspect, an embodiment of the present disclosure provides a terminal including a processor, a memory, and a program stored in the memory and operable on the processor, the program, when executed by the processor, achieving steps of the method of the first aspect.

[0012] In a fifth aspect, an embodiment of the present disclosure provides a radio access network node including a transceiver and a processor, The transceiver receives first information from a first terminal, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The processor provides a radio access network node for configuring a second common logical layer corresponding to the associated terminal for the first service, and for transmitting to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

[0013] In a sixth aspect, an embodiment of the present disclosure provides a radio access network node including a processor, a memory, and a program stored in the memory and operable on the processor, the program, when executed by the processor, realizing steps of the method of the second aspect.

[0014] In a seventh aspect, an embodiment of the present disclosure provides a computer-readable storage medium having a program stored thereon, the program causing, when executed by a processor, to implement the steps of the method described above. Effect of the Invention

[0015] Compared with the related art, the service transmission coordination method and apparatus according to the embodiments of the present disclosure are configured to report first information related to associated terminals by a first terminal, and perform corresponding configuration between associated terminals with the help of a radio access network node, which can provide support for service coordination between terminals of different manufacturers / brands, and further improve the availability of service transmission coordination technology between terminals.

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limitations on the present disclosure. Moreover, the same elements are designated by the same reference numerals throughout the drawings. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a schematic diagram of an application scene of an embodiment of the present disclosure. [Diagram 2] 1 is a flowchart illustrating a case where a service transmission coordination method according to an embodiment of the present disclosure is applied to a terminal side. [Diagram 3] 1 is a flowchart illustrating a method for coordinating service transmission according to an embodiment of the present disclosure when the method is applied to a radio access network node side. [Figure 4] FIG. 2 is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. [Diagram 5] FIG. 13 is a structural schematic diagram of a terminal according to another embodiment of the present disclosure. [Figure 6] FIG. 2 is a structural schematic diagram of a network device according to an embodiment of the present disclosure. [Figure 7] FIG. 13 is a structural schematic diagram of a network device according to another embodiment of the present disclosure. [Figure 8] FIG. 13 is a structural schematic diagram of a terminal according to yet another embodiment of the present disclosure. [Figure 9] FIG. 13 is a structural schematic diagram of a network device according to yet another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be realized in various forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the present disclosure more thoroughly understandable and to fully convey the scope of the present disclosure to those skilled in the art.

[0019] The terms "first," "second," and the like in the specification and claims of the present disclosure are used to distinguish between similar objects and are not necessarily used to describe a particular order or sequence. It is understood that the data so used are interchangeable under appropriate circumstances, whereby the embodiments of the present disclosure described herein can be performed, for example, in an order other than that shown or described herein. In addition, the terms "comprise" and "have," and any variations thereof, cover a non-exclusive inclusion, for example, a procedure, method, system, product, or apparatus that includes a series of steps or units is not limited to including only those steps or units that are expressly recited, but may include other steps or units that are not expressly recited, or other steps or units that are inherent to the procedure, method, product, or apparatus. In the specification and claims, "and / or" refers to at least one of the objects that precede or follow it.

[0020] The techniques described herein are not limited to New Radio (NR) systems and Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, but may also be used in various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system may implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and the like. UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants. A TDMA system may implement radio technologies such as Global System for Mobile Communication (GSM). An OFDMA system may implement radio technologies such as UltraMobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).LTE and more advanced LTE (e.g., LTE-A) are newer UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP®). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for the above-mentioned systems and radio technologies, as well as other systems and radio technologies. Note that, although the following description describes an NR system for illustrative purposes, and much of the following description uses NR terminology, the techniques may also be applicable to systems other than NR systems.

[0021] The following description provides examples and is not intended to limit the scope, applicability, or configuration of the claims. Changes may be made in the function and arrangement of the elements described without departing from the spirit and scope of the present disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the methods described may be performed in different orders than those described, and various steps may be added, omitted, or combined. Additionally, features described with reference to particular examples may be combined in other examples.

[0022] "Data" as used herein may be one or more of a "data packet," "Physical Uplink Share Channel transmission (PUSCH)," "Physical Downlink Share Channel transmission (PDSCH)," "data unit," "transmission," and "transmission block," etc.

[0023] In this specification, "service" may represent at least one of the following concepts: service, protocol data unit (PDU) session, quality of service (QoS) flow, stream or service data flow, radio bearer, and logical channel.

[0024] Referring to FIG. 1, FIG. 1 is a block diagram of a wireless communication system applicable to an embodiment of the present disclosure. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be referred to as a user terminal or user equipment (UE). The terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer (tablet PC), a laptop computer, a personal digital assistant (PDA), a mobile Internet device (mobile Internet device (MID), a wearable device, or an in-vehicle device, but it should be noted that the embodiment of the present disclosure does not limit the specific type of the terminal 11. The network device 12 may be a radio access network node and / or a network element of a core network. Among them, the radio access network node may be a radio access network node of 5G and later versions (e.g., 5G base station (gNB), 5G NR NB, etc.), or a radio access network node in other communication systems (e.g., eNB, Wireless Local Area Networks (WLAN) access point, or other access point, etc.). The radio access network node may be called a Node B (NB), an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a B node, an evolved B node (eNB), a Home B node, a Home evolved B node, a WLAN access point, a WiFi node, or some other suitable term in the field, as long as the same technical effect is achieved, and the radio access network node is not limited to a specific technical term.In addition, in the embodiments of the present disclosure, only radio access network nodes in an NR system are taken as examples, but the specific type of radio access network node is not limited.

[0025] The radio access network nodes can communicate with the terminal 11 under the control of a radio access network node controller, which in various examples may be part of a core network or several radio access network nodes. Several radio access network nodes can communicate control information or user data with the core network via a backhaul. In some examples, several of these radio access network nodes can communicate with each other directly or indirectly via a backhaul link, which may be a wired or wireless communication link. The wireless communication system can support operation with multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can send modulated signals on these multiple carriers simultaneously. For example, each of the communication links may be a multi-carrier signal modulated by various radio technologies. Each of the modulated signals can be transmitted on a different carrier and can carry control information (e.g., reference signals, control channels, etc.), overhead information, data, etc.

[0026] The radio access network nodes can wirelessly communicate with terminals 11 via one or more access point antennas. Each of the radio access network nodes can provide communication coverage for a corresponding coverage area. The coverage area of ​​an access point can be divided into sectors that make up only a part of the coverage area. A wireless communication system can include radio access network nodes of different types (e.g. macro, micro or pico base stations). The radio access network nodes can also utilize different radio technologies, e.g. cellular or WLAN radio access technologies. The radio access network nodes may be associated with the same or different access networks or operator deployments. The coverage areas of different radio access network nodes (including coverage areas of the same or different types of radio access network nodes, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

[0027] A communication link in a wireless communication system may include an uplink for carrying uplink (UL) transmissions (e.g., transmissions from terminal 11 to network equipment 12) or a downlink for carrying downlink (DL) transmissions (e.g., transmissions from network equipment 12 to terminal 11). UL transmissions may also be referred to as reverse link transmissions. Meanwhile, DL transmissions may also be referred to as forward link transmissions. Downlink transmissions may occur using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may occur using licensed frequency bands, unlicensed frequency bands, or both.

[0028] As described in the Background Art, the transmission linkage modes between terminals in the related art usually realize handover between terminals based on a specific interface between the terminals, or realize handover between terminals in a manner that is not detected by the network. In many cases, it is required that information interaction based on a specific short-range communication protocol be supported between both terminals, but this may be difficult to achieve between terminals of different manufacturers or different brands, and therefore is not versatile.

[0029] In order to solve at least one of the above problems, the embodiment of the present disclosure considers improving the universal availability of cooperative transmission technology with the help of a network. The embodiment of the present disclosure provides a cooperative method for service transmission, which is applicable among terminals of different manufacturers or different brands and is not limited to a specific service, thereby improving the availability of the cooperative technology for service transmission among terminals.

[0030] Referring to FIG. 2, the method for coordinating service transmission according to the embodiment of the present disclosure, when applied to a first terminal side, includes the following steps 21-22.

[0031] Step 21 is for the first terminal to transmit, to the radio access network node, first information, the first information including at least one of the following a) to e): a) An identifier of an associated terminal having an association relationship with a first terminal, where there is at least one associated terminal, and where there is a first link between the first terminal and the associated terminal for transmitting data and / or signaling. The associated terminal does not include a first terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling, and the identifier of the associated terminal may be an identifier such as an International Mobile Equipment Identity (IMEI). b) The type of the first link between the first terminal and the associated terminal, such as a PC5 link (a type of sidelink) or a Uu link, or another link based on a non-5G interface such as Wireless Fidelity (WIFI) or Bluetooth. c) Delay information of a first link between the first terminal and the associated terminal, the delay information may include a delay value or a delay level for indicating a degree of magnitude of the delay value. d) An association relationship between the first terminal and the associated terminal in a first service, where the association relationship between the first terminal and the associated terminal in the first service includes at least one of aggregation transmission, abnormal handover between terminals, and normal handover between terminals. Among them, during the aggregation transmission, the first terminal and the associated terminal transmit at least one same service simultaneously, or transmit at least one same service in a time-division manner, or some of the terminals among them assist other terminals in transmitting services in the form of relays, or the terminals cooperatively transmit services that are different but have a certain associated relationship according to an associated relationship between the services, such as at least one of the relationships among time order, bandwidth size, and frequency domain position. e) Information as to whether the associated terminal is exempt from security verification. Among them, exemption from security verification refers to whether the operation of security verification including at least one function among security encryption protection, integrity protection, and authorization authentication is exempt. For example, if a related terminal is located inside a computer room of a factory where security is strictly protected, it may be exempt from security verification. On the other hand, if the related terminal is scattered in the external environment, security verification is required.

[0032] Step 22 is for the first terminal to receive first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, and perform corresponding configuration according to the first configuration information. Among them, the layer 2 configuration information includes: At least one of Service Data Adaptation Protocol (SDAP) configuration information, new logical layer configuration information, Packet Data Convergence Protocol (PDCP) configuration information, Radio Link Control (RLC) configuration information, Media Access Control (MAC) configuration information, and physical layer configuration information is included.

[0033] Here, performing the corresponding configuration means configuring Layer 2 of the first terminal according to the first configuration information, and configuring at least one of the physical resources of the first terminal and a first common logical layer between the first terminal and the associated terminal.

[0034] Through the above steps, an embodiment of the present disclosure enables a first terminal to report first information related to associated terminals, and performs corresponding configuration between associated terminals with the help of a radio access network node, which can provide support for service coordination between terminals of different manufacturers / different brands / different operating systems, and further improve the availability of service transmission coordination technology between terminals.

[0035] In an embodiment of the present disclosure, the aggregation transmission refers to transmitting data of the first service or data of multiple services to the radio access network node via associated terminals (which may be one or multiple terminals among the associated terminals) having an association relationship when a predetermined first condition is met. The first condition includes at least one of the following: the uplink data amount of the first service is greater than a first threshold, the signal quality of at least one terminal is worse than a second threshold, the transmission power of at least one terminal is lower than a third threshold, and the packet error rate of the first service is greater than a fourth threshold. Wherein, the at least one terminal is a terminal performing data transmission and / or reception of the first service.

[0036] The abnormal handover refers to handing over the current execution terminal of the first service from the source terminal to the target terminal and transmitting and receiving data of the first service via the target terminal when a predetermined second condition is met, the second condition including at least one of the following: a heartbeat packet sent from the source terminal is not received by the target terminal, a notification message of the abnormality of the source terminal sent from the source terminal is received by the target terminal, a notification message of the abnormality of the source terminal sent from the network is received by the target terminal, and an abnormality of the source terminal is determined by an upper layer of the target terminal.

[0037] The normal handover refers to handing over the current execution terminal of the first service from a source terminal to a target terminal and transmitting and receiving data of the first service via the target terminal when a third predetermined condition is satisfied, where the third condition includes at least one of the following: the radio access layer of the target terminal is instructed by an upper layer (e.g., an application layer) of the target terminal to perform a handover of the terminal of the first service; the transmission power of the source terminal is lower than a fifth threshold; and the transmission power of the source terminal is lower than a sixth threshold; Here, the source terminal and the target terminal are two different terminals among the associated terminals, and the first terminal may be the source terminal or the target terminal, or the first terminal may be another terminal different from the source terminal and the target terminal.

[0038] As an example, assuming that the associated terminals further include a second terminal, when the associated relationship in the first service between the first terminal and the second terminal includes an abnormal handover between the terminals, the above method of the embodiment of the present disclosure may further configure an abnormal handover aspect between the first terminal and the second terminal, which may be specifically configured by a radio access network node or a terminal.

[0039] For example, when the radio access network node configures, the radio access network node may determine an abnormal handover behavior between the associated terminals according to the delay information of the first link between the associated terminals and the service quality requirements of the first service (e.g., at least one requirement of delay, reliability, jitter, bandwidth, etc.), and then send second configuration information to the terminals. The first terminal may receive the second configuration information sent from the radio access network node, and configure an abnormal handover behavior between itself and the second terminal according to the second configuration information, where the second configuration information includes a configuration of an abnormal handover behavior between the first terminal and the second terminal.

[0040] Further, for example, when a terminal is configured, the first terminal may determine an abnormal handover mode for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement (e.g., delay, reliability, etc.) of the first service, and send indication information of the determined abnormal handover mode to the radio access network node.

[0041] More specifically, the embodiment of the present disclosure provides a plurality of different abnormal handover modes. For example, the abnormal handover modes include a first abnormal handover mode and a second abnormal handover mode. Here, the first abnormal handover mode is usually applied to a scene where the abnormal state of another terminal can be quickly detected between related terminals, and the second abnormal handover mode is usually applied to a scene where the abnormal state of another terminal cannot be quickly detected between terminals. The method of performing abnormality detection between related terminals may be abnormality detection via transmission and reception of heartbeat packets. For example, if a terminal cannot receive one or more heartbeat packets transmitted from another terminal, it can be determined that an abnormality has occurred in the other terminal. Whether the abnormal state of another terminal can be quickly detected usually depends on factors such as the transmission delay of the link between the terminals and the transmission frequency of the heartbeat packets.

[0042] In the first abnormal handover mode, the processing methods in the uplink direction and the downlink direction are as follows. In a downlink direction, send downlink data of the first service to a current executing terminal of the first service via a second common logical layer on a radio access network node side; and when an abnormality occurs in the current executing terminal of the first service, hand over the current executing terminal of the first service from a source terminal to a target terminal, and perform at least one function process, such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data, on the downlink data via the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent to the radio access network node by the target terminal, wherein the source terminal and the target terminal perform at least one function processing, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential delivery of data, on the uplink data through the first common logical layer; Here, the source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal.

[0043] As described above, the first abnormal handover mode is usually applied to a scene in which an abnormal state of another terminal can be quickly detected between related terminals, and in this scene, since an abnormality can be quickly discovered between terminals, handover of transmission of uplink and downlink data may be performed after handover between terminals is completed.

[0044] In the second abnormal handover mode, the processing methods in the uplink direction and the downlink direction are as follows. In a downlink direction, send downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over a currently executing terminal of the first service from the source terminal to a target terminal, and perform at least one function processing on the downlink data via the second common logical layer, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential handover of data, among which, send the downlink data of the first service to a first common logical layer between the first terminal and the second terminal via a second common logical layer on a radio access network node side, and only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer. In the uplink direction, the currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having associated relationships via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, among which, only the currently executing terminal of the first service transmits the uplink data to a radio access network node. Here, the source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal.

[0045] As mentioned above, the second abnormal handover manner is usually applied to the scene where the abnormal state of other terminals cannot be quickly detected between related terminals, and the second abnormal handover manner is to transmit multiple copies of the information data of the first service to related terminals (e.g., UE1 and UE2) in the downlink direction (DL), and to unify the serial numbers (SNs) of data between each terminal by using one second common logical layer, so as to avoid data confusion. Wherein, transmitting multiple copies of the information data of the first service to related terminals (e.g., UE1 and UE2) may use independent radio resources to transmit multiple copies of the information data of the first service to related terminals (e.g., UE1 and UE2), or may use one PDSCH scrambled by a Radio Network Temporary Identity (RNTI) shared by the first terminal and the second terminal to transmit the downlink data of the first service to the first terminal and the second terminal. In the uplink direction (UL), since there is a connection between the two terminals, multiple copies of the data are sent to each associated terminal via the first common logical layer, and the SNs are aligned and assigned between the terminals. The first common logical layer may be located in the application layer or the L2 layer, such as PDCP. In the normal case, data has already been sent to all terminals, but only one terminal will decode / encode and process the data in DL / UL. Only when a failure occurs in the currently executing terminal, an associated terminal is activated and takes over the service under an abnormal state for the first service, i.e., becomes the new currently executing terminal, and starts to decode / encode and process the data in DL / UL. Since an abnormality cannot be quickly found between terminals, the embodiment of the present disclosure introduces a common logical layer to cache the uplink and downlink data of the first service, which can reduce problems such as data packet loss caused by terminal handover not being timely performed when an abnormality occurs.

[0046] In this specification, the above-mentioned handover of the current execution terminal of the first service from the source terminal to the target terminal may be described as transitioning the current execution terminal of the first service from the source terminal to the target terminal. After the handover or transition is completed, the network may transmit downlink data of the first service to the target terminal, and the target terminal may receive and process the downlink data of the first service, and further transmit uplink data of the first network element to the network.

[0047] In addition, in the first abnormal handover mode, in the downlink direction, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer after the handover occurs. In the first abnormal handover mode, in the downlink direction, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer after the handover occurs. The above process can improve the success rate of data reception and reduce the number of data packets that need to be retransmitted after the handover.

[0048] In the above method of the embodiment of the present disclosure, the radio access network node can determine a current execution terminal (which may be referred to as a master terminal) of the first service among the associated terminals of the first service, and then establish a common tunnel and individual air interface radio bearer of the first service between each terminal, in which the Access Stratum (AS) protocol stack of the current execution terminal is complete, while the other terminals usually only have a part of the AS protocol stack (e.g., a protocol stack from the RLC layer to the physical layer). There is a Radio Resource Control (RRC) connection between the current execution terminal and the radio access network node. The radio access network node can determine whether an RRC connection with the other terminals is established, and if there is no RRC connection, the current execution terminal sends related configuration information and scheduling identifiers to the other terminals. In this way, the access network only knows the association relationship between the identifiers (e.g. Cell Radio Network Temporary Identifier (C-RNTI)) of the current executing terminal and other terminals, i.e. the core network only knows one terminal (e.g. the anchor terminal) and not the other terminals, and the radio access network node only triggers the establishment of PDU sessions and Non-Access Stratum (NAS) bearers between the current executing terminal and the core.

[0049] Thus, before the above step 21, the first terminal may further receive third configuration information sent from a radio access network node, for configuring and establishing a common tunnel and an air interface radio bearer for the first service. The first terminal then establishes a common tunnel between the first terminal and a core network for the first service and establishes an air interface radio bearer between the first terminal and a radio access network node according to the third configuration information.

[0050] Specifically, when the first terminal is a current executing terminal of the first service, the first terminal establishes an RRC connection with a radio access network node, and receives the third configuration information sent from the radio access network node via the RRC connection.

[0051] When the first terminal has an association relationship with a currently executing terminal of the first service and has not established an RRC connection with a radio access network node, the first terminal receives the third configuration information and a scheduling identifier sent from the currently executing terminal of the first service, and the scheduling identifier may specifically be a C-RNTI.

[0052] In practical application, during the execution of the first service, there may be a newly joined associated terminal, such as a third terminal. In this case, the embodiment of the present disclosure may further update the information of the associated terminal. Specifically, the first terminal may provide second information to the radio access network node, the second information including: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; and Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; and information on whether the third terminal is exempt from security verification. The first terminal receives fourth configuration information transmitted from a radio access network node, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of a first common logical layer between the first terminal and the associated terminal, and updates a corresponding configuration according to the fourth configuration information.

[0053] Wherein, the PDCP window and / or the RLC window of the third terminal are initialized according to the serial number of the first data packet received by the third terminal, or according to the Hyper Frame Number (HFN) and / or the serial number (SN number) sent from the radio access network node, where the initialization according to the serial number of the first data packet received by the third terminal means that the serial number of the first data packet received is set as the start value of the receiving window, or the value obtained by subtracting half the receiving window length from the serial number of the first data packet received is set as the start value of the receiving window.

[0054] In an embodiment of the present disclosure, if the first information indicates that the second terminal is exempt from security verification, the first terminal may send security and integrity keys and algorithm information assigned to the first terminal by the core network and radio access network nodes to the second terminal, so that data is encrypted by the second terminal using the security and integrity keys and algorithm information of the first terminal.

[0055] On the other hand, if said first information does not indicate that the second terminal is exempt from security verification, the following implementation may be used in this case. 1) the third information and the fourth information of the second terminal are assigned to the second terminal by a core network and a radio access network node, respectively; 2) the second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; The third information includes at least one of a security key, an integrity key, and algorithm information of the NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of the AS.

[0056] If the first information does not indicate that the second terminal is exempt from security verification, if the association relationship between the first terminal and the second terminal is aggregation transmission, then the uplink data of the first service transmitted from the first terminal is encrypted by the fourth information of the first terminal, then transmitted to the second terminal, and then further encrypted by the fourth information of the second terminal, then transmitted to the radio access network node side. Accordingly, after receiving the uplink data transmitted from the second terminal, the radio access network node first decrypts the data using the fourth information of the second terminal, and then further decrypts the data using the fourth information of the first terminal to obtain the decrypted uplink data.

[0057] Referring to FIG. 3, the method for coordinating service transmission according to the embodiment of the present disclosure, when applied to a radio access network node side, includes the following steps 31-32.

[0058] Step 31 is a step of receiving first information from a radio access network node, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification.

[0059] Step 32 is for the radio access network node to configure a second common logical layer corresponding to the associated terminal for the first service, and send to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

[0060] Optionally, the radio access network node configures a second common logical layer corresponding to the associated terminal for the first service, and before sending first configuration information to the first terminal and the associated terminal for configuring the associated terminal, the radio access network node determines the location of the second common logical layer of the associated terminal according to the first information sent from the received first terminal.

[0061] For example, if the transmission delay of the first link is smaller than a predetermined first threshold, the MAC layer may be used as the second common logical layer, and conversely, if the transmission delay of the first link is larger than a predetermined second threshold, the PDCP or RLC layer may be used as the second common logical layer. If the associated relationship is aggregation transmission, any of the PDCP, RLC, MAC, and physical layers may be used as the second common logical layer. Conversely, if an abnormality has a negative impact on handover, the MAC or physical layer may be used as the second common logical layer. If an abnormality has no negative impact on handover, SDAP or PDCP is still used as the second common logical layer.

[0062] Through the above steps, an embodiment of the present disclosure is able to perform corresponding configurations between associated terminals with the help of a radio access network node, providing support for service coordination between terminals of different manufacturers / brands, further expanding the application scenarios of inter-terminal service transmission coordination technology, and improving availability.

[0063] Specifically, the association relationship of the first service of the associated terminal includes at least one of aggregation transmission, abnormal handover between terminals, and normal handover between terminals. For details of the above aggregation transmission, abnormal handover, and normal handover, please refer to the above description, and will not be repeated here in order to reduce the length of the text.

[0064] In an embodiment of the present disclosure, when the associated terminals further include a second terminal, and the associated relationship between the first terminal and the second terminal in a first service includes an abnormal handover between the terminals, the radio access network node may determine an abnormal handover aspect for the first service between the first terminal and the second terminal in the following manner: 1) A method in which a radio access network node determines an abnormal handover mode for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement of the first service, sends second configuration information including a configuration of the abnormal handover mode between the first terminal and the second terminal to the first terminal, and configures the abnormal handover mode between the first terminal and the second terminal. 2) A method in which a radio access network node receives first instruction information transmitted from the first terminal, the first instruction information being for instructing an abnormal handover mode for the first service between the first terminal and the second terminal.

[0065] Specifically, the abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner, In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current executing terminal of the first service via a second common logical layer on a radio access network node side; and when an abnormality occurs in the current executing terminal of the first service, hand over the current executing terminal of the first service from a source terminal to a target terminal, and perform at least one function process, such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data, on the downlink data via the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, a currently executing terminal of the first service sends uplink data of the first service to a radio access network node, and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent to a radio access network node by the target terminal, wherein the source terminal and the target terminal perform at least one function processing, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential delivery of data, on the uplink data via the first common logical layer. In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over a currently executing terminal of the first service from the source terminal to a target terminal, and perform at least one function processing such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data on the downlink data via the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; In the uplink direction, the currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having associated relationships via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, among which, only the currently executing terminal of the first service transmits the uplink data to a radio access network node. Here, the source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal.

[0066] In the second abnormal handover aspect, in the downlink direction, transmitting downlink data of the first service to the first terminal and the second terminal via a second common logical layer on the radio access network node side may specifically include the second common logical layer on the radio access network node side transmitting the downlink data of the first service to the first terminal and the second terminal using one PDSCH transmission scrambled with an RNTI shared by the first terminal and the second terminal.

[0067] In the first abnormal handover manner and / or the second abnormal handover manner, in a downlink direction, after a handover occurs, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer, in which case the first link between the source terminal and the target terminal is normal and the downlink data can be transmitted between the terminals.

[0068] In an embodiment of the present disclosure, before the above step 31, the radio access network node may further send third configuration information to the first terminal for configuring and establishing a common tunnel and an air interface radio bearer of the first service, so that the first terminal establishes a common tunnel between the core network for the first service and establishes an air interface radio bearer between the radio access network node and the first terminal. If the first terminal is a current executing terminal of the first service, the radio access network node establishes an RRC connection with the first terminal and transmits the third configuration information to the first terminal via the RRC connection. On the other hand, if the first terminal has an association relationship with the current executing terminal of the first service and has not established an RRC connection with the radio access network node, the radio access network node transmits the third configuration information and a scheduling identifier to the first terminal via the current executing terminal of the first service.

[0069] If a new terminal (e.g., a third terminal) joins the associated terminals during the execution of the first service, in this case, the radio access network node further receives second information from the first terminal, the second information including: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; and Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; and information on whether the third terminal is exempt from security verification; The radio access network node updates a configuration of the second common logical layer for the first service, and sends fourth configuration information to the first terminal and the associated terminal, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of the first common logical layer between the first terminal and the associated terminal; The PDCP window and / or the RLC window of the third terminal are initialized according to the serial number of the first data packet received by the third terminal, or according to the HFN and / or SN number sent from the radio access network node, where the initialization according to the serial number of the first data packet received by the third terminal means that the serial number of the first data packet received is taken as the start value of the receiving window, or the serial number of the first data packet received minus half the receiving window length is taken as the start value of the receiving window.

[0070] In an embodiment of the present disclosure, if the first information in step 31 indicates that the second terminal is exempt from security verification, the radio access network node may further cancel the triggering of the connection establishment and authorization authentication procedure between the second terminal and the core network, wherein the security and integrity keys and algorithm information used by the second terminal are the same security and integrity keys and algorithm information assigned to the first terminal by the core network and the radio access network node.

[0071] In the embodiment of the present disclosure, if the first information in the above step 31 does not indicate that the second terminal is exempt from security verification, the third information and the fourth information of the second terminal are respectively assigned to the second terminal by the core network and the radio access network node, or the second terminal and the first terminal share the third information assigned by the core network, and the fourth information of the second terminal is assigned to the second terminal by the radio access network node. Here, the third information includes at least one of the security key, the integrity key, and the algorithm information of the NAS, and the fourth information includes at least one of the security key, the integrity key, and the algorithm information of the AS. In this case, if the association relationship between the first terminal and the second terminal is aggregation transmission, the radio access network node, after receiving the uplink data transmitted from the second terminal, first decrypts the data using the fourth information of the second terminal, and then decrypts the data using the fourth information of the first terminal to obtain the decrypted uplink data.

[0072] Various methods according to the embodiments of the present disclosure have been introduced above. Hereinafter, an apparatus for implementing the above methods is further provided.

[0073] Referring to FIG. 4, an embodiment of the present disclosure further provides a terminal 400, including a first sending module 401 and a first configuring module 402; The first sending module 401 sends first information to a radio access network node, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The first configuration module 402 is for receiving first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, and for performing corresponding configuration according to the first configuration information.

[0074] Optionally, the association relationship between the first terminal and the associated terminal in the first service includes at least one of aggregation transmission, abnormal handover between terminals, and normal handover between terminals.

[0075] Optionally, the aggregation transmission is to transmit data of the first service to the radio access network node via an associated terminal having an association relationship when a predetermined first condition is met, and the first condition includes at least one of the following: an uplink data amount of the first service is greater than a first threshold; a signal quality of at least one terminal is worse than a second threshold; a transmission power of at least one terminal is lower than a third threshold; and a packet error rate of the first service is greater than a fourth threshold; The abnormal handover refers to handing over the current execution terminal of the first service from the source terminal to the target terminal and transmitting and receiving data of the first service through the target terminal when a predetermined second condition is met, and the second condition includes at least one of the following: a heartbeat packet sent from the source terminal is not received by the target terminal; a notification message of the abnormality of the source terminal sent from the source terminal is received by the target terminal; a notification message of the abnormality of the source terminal sent from the network is received by the target terminal; and the abnormality of the source terminal is determined by an upper layer of the target terminal; The normal handover means that when a third predetermined condition is satisfied, the currently executing terminal of the first service is handed over from the source terminal to the target terminal, and data of the first service is transmitted and received via the target terminal, and the third condition includes at least one of the following: an instruction to hand over the terminal of the first service is given from an upper layer of the target terminal; the transmission power of the source terminal is lower than a fifth threshold; and the transmission power of the source terminal is lower than a sixth threshold; The source terminal and the target terminal are two different terminals among the associated terminals, and the first terminal is the source terminal, or the target terminal, or another terminal different from the source terminal and the target terminal.

[0076] Optionally, the associated terminals further include a second terminal, the second terminal comprising: a second configuration module for receiving second configuration information sent from a radio access network node, the second configuration information including a configuration of an abnormal handover mode between the first terminal and the second terminal, and configuring an abnormal handover mode between itself and the second terminal according to the second configuration information, when an association relationship in a first service between the first terminal and the second terminal includes an abnormal handover between the terminals; Or, The wireless access network node further includes a second transmitting module for determining an abnormal handover behavior for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement of the first service, and transmitting indication information of the determined abnormal handover behavior to the wireless access network node.

[0077] Optionally, the abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner; In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current executing terminal of the first service via a second common logical layer on a radio access network node side; and when an abnormality occurs in the current executing terminal of the first service, hand over the current executing terminal of the first service from a source terminal to a target terminal, and perform at least one function process, such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data, on the downlink data via the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent to the radio access network node by the target terminal, wherein the source terminal and the target terminal perform at least one function processing, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential delivery of data, on the uplink data through the first common logical layer; The source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal; In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over a currently executing terminal of the first service from the source terminal to a target terminal, and perform at least one function processing such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data on the downlink data via the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; In the uplink direction, the currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having associated relationships via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, among which, only the currently executing terminal of the first service transmits the uplink data to a radio access network node.

[0078] Optionally, in the first abnormal handover manner and / or the second abnormal handover manner, in the downlink direction, after a handover occurs, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer.

[0079] Optionally, the terminal a first receiving module for receiving third configuration information sent from a radio access network node before sending the first information to the radio access network node, the third configuration information being for configuring and establishing a common tunnel and an air interface radio bearer of the first service; and a third configuration module for establishing a common tunnel between the first terminal and a core network for the first service according to the third configuration information, and establishing an air interface radio bearer between the first terminal and a radio access network node.

[0080] Optionally, the first receiving module comprises: If the first terminal is a current executing terminal of the first service, establish an RRC connection with a radio access network node, and receive the third configuration information sent from the radio access network node via the RRC connection; It is also for receiving the third configuration information and a scheduling identifier sent from a currently executing terminal of the first service when the first terminal has an association relationship with the currently executing terminal of the first service and has not established an RRC connection with a radio access network node.

[0081] Optionally, the terminal second information to a radio access network node, the second information comprising: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; and Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; a third transmission module for transmitting second information including at least one of information on whether the third terminal is exempt from security verification; Further comprising: a fourth configuration module for receiving fourth configuration information sent from a radio access network node, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of a first common logical layer between the first terminal and the associated terminal, and updating a corresponding configuration according to the fourth configuration information; The PDCP window and / or RLC window of the third terminal are initialized according to the serial number of the first data packet received by the third terminal, or are initialized according to the HFN and / or SN number sent from the radio access network node.

[0082] Optionally, the terminal and a fourth transmitting module for transmitting security and integrity keys and algorithm information assigned to the first terminal by the core network and radio access network nodes to the second terminal when the first information indicates that the second terminal is exempt from security verification, so that data is encrypted by the second terminal using the security and integrity keys and algorithm information of the first terminal.

[0083] Optionally, if the first information does not indicate that the second terminal is exempt from security verification, The third information and the fourth information of the second terminal are respectively assigned to the second terminal by a core network and a radio access network node; Or, The second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; The third information includes at least one of a security key, an integrity key, and algorithm information of the NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of the AS.

[0084] Optionally, the terminal When the association relationship between the first terminal and the second terminal is aggregation transmission, it further includes a fifth transmission module for transmitting uplink data of the first service, in which the uplink data is encrypted by the fourth information of the first terminal and then transmitted to the second terminal, and further encrypted by the fourth information of the second terminal and then transmitted to the radio access network node side.

[0085] It should be noted that the device in this embodiment is the device corresponding to the method shown in Fig. 2 above, and the implementation manner in each of the above embodiments can be applied to the device embodiment, and can achieve the same technical effects. The device according to the embodiment of the present disclosure can achieve all the method steps achieved by the above method embodiment, and can achieve the same technical effects, but here the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated in detail.

[0086] Referring to FIG. 5 , an embodiment of the present disclosure further provides a terminal 500, including a transceiver 501 and a processor 502; The transceiver 501 transmits first information to a radio access network node, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The processor 502 is for receiving first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, and for performing corresponding configuration according to the first configuration information.

[0087] Optionally, the associated terminals further include a second terminal, and the processor further comprises: When the association relationship in the first service between the first terminal and the second terminal includes an abnormal handover between the terminals, receiving second configuration information transmitted from a radio access network node, the second configuration information including a configuration of an abnormal handover mode between the first terminal and the second terminal, and configuring an abnormal handover mode between the first terminal and the second terminal according to the second configuration information; or Or, It is also for determining an abnormal handover mode for the first service between the first terminal and the second terminal according to delay information of a first link between itself and the second terminal and a first service quality requirement of the first service, and sending indication information of the determined abnormal handover mode to the radio access network node.

[0088] Optionally, the abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner; In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current executing terminal of the first service via a second common logical layer on a radio access network node side; and when an abnormality occurs in the current executing terminal of the first service, hand over the current executing terminal of the first service from a source terminal to a target terminal, and perform at least one function process, such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data, on the downlink data via the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent to the radio access network node by the target terminal, wherein the source terminal and the target terminal perform at least one function processing, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential delivery of data, on the uplink data through the first common logical layer; The source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal; In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over a currently executing terminal of the first service from the source terminal to a target terminal, and perform at least one function processing such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data on the downlink data via the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; In the uplink direction, the currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having associated relationships via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, among which, only the currently executing terminal of the first service transmits the uplink data to a radio access network node.

[0089] Optionally, in the first abnormal handover manner and / or the second abnormal handover manner, in the downlink direction, after a handover occurs, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer.

[0090] Optionally, the processor: receiving third configuration information sent from a radio access network node before sending the first information to the radio access network node, the third configuration information for configuring and establishing a common tunnel and an air interface radio bearer for the first service; It is also for establishing a common tunnel between the first terminal and a core network for the first service according to the third configuration information, and for establishing an air interface radio bearer between the first terminal and a radio access network node.

[0091] Optionally, the processor: If the first terminal is a current executing terminal of the first service, establish an RRC connection with a radio access network node, and receive the third configuration information sent from the radio access network node via the RRC connection. It is also for receiving the third configuration information and a scheduling identifier sent from a currently executing terminal of the first service when the first terminal has an association relationship with the currently executing terminal of the first service and has not established an RRC connection with a radio access network node.

[0092] Optionally, the processor: second information to a radio access network node, the second information comprising: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; and Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; and information on whether the third terminal is exempt from security verification. Also for receiving fourth configuration information sent from a radio access network node, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of a first common logical layer between the first terminal and the associated terminal, and updating a corresponding configuration according to the fourth configuration information; The PDCP window and / or RLC window of the third terminal are initialized according to the serial number of the first data packet received by the third terminal, or are initialized according to the HFN and / or SN number sent from the radio access network node.

[0093] Optionally, the processor: If the first information indicates that the second terminal is exempt from security verification, the security and integrity keys and algorithm information assigned to the first terminal by the core network and radio access network nodes is also sent to the second terminal so that data is encrypted by the second terminal using the security and integrity keys and algorithm information of the first terminal.

[0094] Optionally, if the first information does not indicate that the second terminal is exempt from security verification, The third information and the fourth information of the second terminal are respectively assigned to the second terminal by a core network and a radio access network node; Or, The second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; The third information includes at least one of a security key, an integrity key, and algorithm information of the NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of the AS.

[0095] Optionally, the processor: When the association relationship between the first terminal and the second terminal is aggregation transmission, it is also for transmitting uplink data of the first service, in which the uplink data is encrypted by the fourth information of the first terminal and then transmitted to the second terminal, and further encrypted by the fourth information of the second terminal and then transmitted to the radio access network node side.

[0096] It should be noted that the device in this embodiment is the device corresponding to the method shown in Fig. 2 above, and the implementation manner in each of the above embodiments can be applied to the device embodiment, and can achieve the same technical effects. The device according to the embodiment of the present disclosure can achieve all the method steps achieved by the above method embodiment, and can achieve the same technical effects, but here the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated in detail.

[0097] Referring to FIG. 6 , an embodiment of the present disclosure further provides a radio access network node 600, including a first receiving module 601 and a first configuring module 602; The first receiving module 601 receives first information from a first terminal, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The first configuration module 602 is for configuring a second common logical layer corresponding to the associated terminal for the first service, and for transmitting to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

[0098] Optionally, the association relationship between the first terminal and the associated terminal in the first service includes at least one of aggregation transmission, abnormal handover between terminals, and normal handover between terminals.

[0099] Optionally, the associated terminals further include a second terminal, and the radio access network node further comprises: a second configuration module for determining an abnormal handover behavior for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement of the first service when the association relationship in the first service between the first terminal and the second terminal includes an abnormal handover between the terminals, and sending second configuration information to the first terminal, the second configuration information including a configuration of the abnormal handover behavior between the first terminal and the second terminal, and configuring the abnormal handover behavior between the first terminal and the second terminal; Or, The system further includes a second receiving module for receiving first instruction information transmitted from the first terminal, the first instruction information being for instructing an abnormal handover mode for the first service between the first terminal and the second terminal.

[0100] Optionally, the abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner; In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current executing terminal of the first service via a second common logical layer on a radio access network node side; and when an abnormality occurs in the current executing terminal of the first service, hand over the current executing terminal of the first service from a source terminal to a target terminal, and perform at least one function process, such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data, on the downlink data via the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent to the radio access network node by the target terminal, wherein the source terminal and the target terminal perform at least one function processing, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential delivery of data, on the uplink data through the first common logical layer; The source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal; In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over a currently executing terminal of the first service from the source terminal to a target terminal, and perform at least one function processing such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data on the downlink data via the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; In the uplink direction, the currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having associated relationships via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, among which, only the currently executing terminal of the first service transmits the uplink data to a radio access network node.

[0101] Optionally, in the downlink direction, transmitting downlink data of the first service to the first terminal and the second terminal via a second common logical layer on the radio access network node side specifically includes: a second common logical layer on the radio access network node side transmitting the downlink data of the first service to the first terminal and the second terminal using one PDSCH scrambled with an RNTI shared by the first terminal and the second terminal.

[0102] Optionally, in the first abnormal handover manner and / or the second abnormal handover manner, in the downlink direction, after a handover occurs, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer.

[0103] Optionally, the radio access network node is The present invention further includes a third configuration module for sending third configuration information to a first terminal before receiving the first information, for configuring and establishing a common tunnel and an air interface radio bearer for the first service, so that a common tunnel between the first terminal and a core network is established for the first service by the first terminal, and an air interface radio bearer between the first terminal and a radio access network node is established.

[0104] Optionally, the third configuration module further comprises: If the first terminal is a current executing terminal of the first service, establish an RRC connection with the first terminal, and send the third configuration information to the first terminal via the RRC connection; It is also for transmitting the third configuration information and the scheduling identifier to the first terminal via the current executing terminal of the first service when the first terminal has an association relationship with the current executing terminal of the first service and has not established an RRC connection with a radio access network node.

[0105] Optionally, the radio access network node is Second information transmitted from the first terminal, the second information including: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; and Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; a third receiving module for receiving second information including at least one of information on whether the third terminal is exempt from security verification; Further comprising: a fourth configuration module for updating a configuration of the second common logical layer for the first service, and sending fourth configuration information to the first terminal and the associated terminal, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of the first common logical layer between the first terminal and the associated terminal; The PDCP window and / or RLC window of the third terminal are initialized according to the serial number of the first data packet received by the third terminal, or are initialized according to the HFN and / or SN number sent from the radio access network node.

[0106] Optionally, the radio access network node is The present invention further includes a cancellation module for canceling the triggering of a connection establishment and authorization authentication procedure between the second terminal and the core network when the first information indicates that the second terminal is exempt from security verification, wherein the security and integrity keys and algorithm information used by the second terminal are the same security and integrity keys and algorithm information assigned to the first terminal by the core network and radio access network nodes.

[0107] Optionally, if the first information does not indicate that the second terminal is exempt from security verification, The third information and the fourth information of the second terminal are respectively assigned to the second terminal by a core network and a radio access network node; Or, The second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; The third information includes at least one of a security key, an integrity key, and algorithm information of the NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of the AS.

[0108] Optionally, the radio access network node is When the association relationship between the first terminal and the second terminal is aggregation transmission, the communication device further includes a decoding module for first decoding the uplink data transmitted from the second terminal using the fourth information of the second terminal, and then decoding the uplink data using the fourth information of the first terminal to obtain decoded uplink data.

[0109] It should be noted that the device in this embodiment is the device corresponding to the method shown in Fig. 3 above, and the implementation manner in each of the above embodiments can be applied to the device embodiment, and can achieve the same technical effects. The device according to the embodiment of the present disclosure can achieve all the method steps achieved by the above method embodiment, and can achieve the same technical effects, but here the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated in detail.

[0110] Referring to FIG. 7 , an embodiment of the present disclosure further provides a radio access network node 700, including a transceiver 701 and a processor 702; The transceiver 701 receives first information from a first terminal, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and a first link exists between the first terminal and the associated terminal for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The processor 702 is for configuring a second common logical layer corresponding to the associated terminal for the first service, and transmitting to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

[0111] Optionally, the association relationship between the associated terminals in the first service includes at least one of: aggregation transmission, abnormal handover between terminals, and normal handover between terminals.

[0112] Optionally, the associated terminals further include a second terminal, and the processor further comprises: When the association relationship in the first service between the first terminal and the second terminal includes an abnormal handover between the terminals, determine an abnormal handover behavior for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement of the first service, and send second configuration information to the first terminal, the second configuration information including a configuration of the abnormal handover behavior between the first terminal and the second terminal, to configure the abnormal handover behavior between the first terminal and the second terminal; Or, It is also for receiving first instruction information transmitted from the first terminal, the first instruction information being for instructing an abnormal handover mode for the first service between the first terminal and the second terminal.

[0113] Optionally, the abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner; In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current executing terminal of the first service via a second common logical layer on a radio access network node side; and when an abnormality occurs in the current executing terminal of the first service, hand over the current executing terminal of the first service from a source terminal to a target terminal, and perform at least one function process, such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data, on the downlink data via the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent to the radio access network node by the target terminal, wherein the source terminal and the target terminal perform at least one function processing, such as serial number alignment, repetitive checking, sequential sorting of data, sequential transmission and / or sequential delivery of data, on the uplink data through the first common logical layer; The source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal; In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over a currently executing terminal of the first service from the source terminal to a target terminal, and perform at least one function processing such as serial number alignment, repetitive check, sequential sorting of data, sequential transmission and / or sequential handover of data on the downlink data via the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; In the uplink direction, the currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having associated relationships via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, among which, only the currently executing terminal of the first service transmits the uplink data to a radio access network node.

[0114] Optionally, in the downlink direction, transmitting downlink data of the first service to the first terminal and the second terminal via a second common logical layer on the radio access network node side specifically includes: a second common logical layer on the radio access network node side transmitting the downlink data of the first service to the first terminal and the second terminal using one PDSCH scrambled with an RNTI shared by the first terminal and the second terminal.

[0115] Optionally, in the first abnormal handover manner and / or the second abnormal handover manner, in the downlink direction, after a handover occurs, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer.

[0116] Optionally, the processor: It is also for transmitting third configuration information to the first terminal before receiving the first information, for configuring and establishing a common tunnel and an air interface radio bearer for the first service, so that a common tunnel between the first terminal and a core network for the first service is established by the first terminal, and an air interface radio bearer between the first terminal and a radio access network node is established.

[0117] Optionally, the processor: If the first terminal is a current executing terminal of the first service, establish an RRC connection with the first terminal, and send the third configuration information to the first terminal via the RRC connection; It is also for transmitting the third configuration information and the scheduling identifier to the first terminal via the current executing terminal of the first service when the first terminal has an association relationship with the current executing terminal of the first service and has not established an RRC connection with a radio access network node.

[0118] Optionally, the transceiver receives second information from the first terminal, the second information including: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; and Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; and information on whether the third terminal is exempt from security verification. The processor is also for updating a configuration of the second common logical layer for the first service, and sending fourth configuration information to the first terminal and the associated terminal, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of a first common logical layer between the first terminal and the associated terminal; The PDCP window and / or RLC window of the third terminal are initialized according to the serial number of the first data packet received by the third terminal, or are initialized according to the HFN and / or SN number sent from the radio access network node.

[0119] Optionally, the processor is also for canceling the triggering of a connection establishment and authorization authentication procedure between the second terminal and the core network when the first information indicates that the second terminal is exempt from security verification, wherein the security and integrity keys and algorithm information used by the second terminal are the same security and integrity keys and algorithm information assigned to the first terminal by the core network and radio access network nodes.

[0120] Optionally, if the first information does not indicate that the second terminal is exempt from security verification, The third information and the fourth information of the second terminal are respectively assigned to the second terminal by a core network and a radio access network node; Or, The second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; The third information includes at least one of a security key, an integrity key, and algorithm information of the NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of the AS.

[0121] Optionally, when the association relationship between the first terminal and the second terminal is aggregation transmission, the processor is also configured to, after receiving uplink data transmitted from the second terminal, first decode the uplink data using the fourth information of the second terminal, and then decode the uplink data using the fourth information of the first terminal to obtain decoded uplink data.

[0122] It should be noted that the device in this embodiment is the device corresponding to the method shown in Fig. 3 above, and the implementation manner in each of the above embodiments can be applied to the device embodiment, and can achieve the same technical effects. The device according to the embodiment of the present disclosure can achieve all the method steps achieved by the above method embodiment, and can achieve the same technical effects, but here the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated in detail.

[0123] Referring to FIG. 8, an embodiment of the present disclosure further provides a terminal 800 including a processor 801, a memory 802, and a computer program stored in the memory 802 and operable on the processor 801, whereby when the computer program is executed by the processor 801, each step of the embodiment of the service transmission coordination method executed by the terminal is realized and the same technical effects can be achieved, which will not be repeated here to avoid duplication.

[0124] Referring to FIG. 9, an embodiment of the present disclosure further provides a radio access network node 900 including a processor 901, a memory 902, and a computer program stored in the memory 902 and operable on the processor 901, whereby when the computer program is executed by the processor 901, each step of the embodiment of the service transmission coordination method performed by the radio access network node is realized and the same technical effects can be achieved, which will not be repeated here to avoid duplication.

[0125] The embodiment of the present disclosure further provides a computer-readable storage medium storing a computer program, which, when executed by a processor, realizes each procedure of the embodiment of the service transmission coordination method and achieves the same technical effects, but will not be described again here to avoid duplication. Among them, the computer-readable storage medium can be, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc.

[0126] It should be explained that, as used herein, the terms "comprise," "comprises," or any other variant thereof, are intended to cover a non-exclusive inclusion, such that a procedure, method, article, or apparatus comprising a set of elements not only includes those elements, but also includes other elements not expressly listed or inherent to the procedure, method, article, or apparatus. Unless further limited, an element qualified by the term "comprises a..." does not exclude the presence of other identical elements in the procedure, method, article, or apparatus that includes the element.

[0127] From the description of the above embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be realized by adding a necessary general-purpose hardware platform to the software, and of course, the methods can also be realized by hardware, but in many cases, the former is a more preferred embodiment. Based on this understanding, the essential part of the technical aspects of the present disclosure, or the part that contributes to the prior art, can be embodied in the form of a software product, and the computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes several instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, a network device, etc.) to execute the methods according to the embodiments of the present disclosure.

[0128] Although the embodiments of the present disclosure have been described above with reference to the drawings, the present disclosure is not limited to the above specific embodiments, and the above specific embodiments are merely illustrative and not restrictive. A person skilled in the art can create many forms under the teachings of the present disclosure without departing from the spirit of the present disclosure and the scope of protection of the claims, and all of them shall be included in the scope of protection of the present disclosure.

Claims

1. A method for coordinating service transmission, comprising: A first terminal transmits first information to a radio access network node, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and between the first terminal and the associated terminal there is a first link for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; transmitting first information including at least one of: information indicating whether the associated terminal is exempt from security verification; The method includes: the first terminal receiving first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal; and performing corresponding configuration according to the first configuration information.

2. The method according to claim 1 , wherein an association relationship between the first terminal and the associated terminal in a first service includes at least one of an aggregation transmission, an abnormal handover between terminals, and a normal handover between terminals.

3. The aggregation transmission means transmitting data of the first service to the radio access network node via an associated terminal having an association relationship when a predetermined first condition is satisfied, and the first condition includes at least one of the following: an uplink data amount of the first service is greater than a first threshold; a signal quality of at least one terminal is worse than a second threshold; a transmission power of at least one terminal is lower than a third threshold; and a packet error rate of the first service is greater than a fourth threshold; The abnormal handover refers to handing over the current execution terminal of the first service from the source terminal to the target terminal and transmitting and receiving data of the first service through the target terminal when a predetermined second condition is met, and the second condition includes at least one of the following: a heartbeat packet sent from the source terminal is not received by the target terminal; a notification message of the abnormality of the source terminal sent from the source terminal is received by the target terminal; a notification message of the abnormality of the source terminal sent from the network is received by the target terminal; and the abnormality of the source terminal is determined by an upper layer of the target terminal; The normal handover means that when a third predetermined condition is satisfied, the currently executing terminal of the first service is handed over from the source terminal to the target terminal, and data of the first service is transmitted and received via the target terminal, and the third condition includes at least one of the following: an instruction to hand over the terminal of the first service is given from an upper layer of the target terminal; the transmission power of the source terminal is lower than a fifth threshold; and the transmission power of the source terminal is lower than a sixth threshold; The method according to claim 2, wherein the source terminal and the target terminal are two different terminals among the associated terminals, and the first terminal is the source terminal, or the target terminal, or another terminal different from the source terminal and the target terminal.

4. The associated terminals include a second terminal, and when an associated relationship between the first terminal and the second terminal in a first service includes an abnormal handover between the terminals, the method includes: the first terminal receiving second configuration information transmitted from a radio access network node, the second configuration information including a configuration of an abnormal handover mode between the first terminal and the second terminal, and configuring an abnormal handover mode between the first terminal and the second terminal according to the second configuration information; Or, 3. The method of claim 2, further comprising: the first terminal determining an abnormal handover behavior for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement of the first service, and sending indication information of the determined abnormal handover behavior to the radio access network node.

5. The abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner, In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current execution terminal of the first service through a second common logical layer on a radio access network node side; and when an abnormality occurs in the current execution terminal of the first service, hand over the current execution terminal of the first service from a source terminal to a target terminal, perform a serial number alignment process on the downlink data through the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent by the target terminal to a radio access network node, wherein the source terminal and the target terminal perform a serial number alignment process on the uplink data through the first common logical layer; The source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal; In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal through a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over the currently executing terminal of the first service from the source terminal to a target terminal, and perform a serial number alignment process on the downlink data through the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; 5. The method of claim 4, wherein in an uplink direction, a currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having an associated relationship via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, wherein only the currently executing terminal of the first service transmits the uplink data to a radio access network node.

6. The method according to claim 5, wherein in the first abnormal handover mode and / or the second abnormal handover mode, in the downlink direction, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer after the handover occurs.

7. Before transmitting the first information to the radio access network node, the method further comprises: receiving, by the first terminal, third configuration information sent from a radio access network node, the third configuration information for configuring and establishing a common tunnel and an air interface radio bearer for the first service; 2. The method of claim 1, further comprising: the first terminal establishing a common tunnel between the first terminal and a core network for the first service according to the third configuration information, and establishing an air interface radio bearer between the first terminal and a radio access network node.

8. If the first terminal is a current executing terminal of the first service, the first terminal establishes an RRC connection with a radio access network node, and receives the third configuration information sent from the radio access network node via the RRC connection; 8. The method of claim 7, wherein, when the first terminal has an association relationship with a current executing terminal of the first service and has not established an RRC connection with a radio access network node, the first terminal receives the third configuration information and the scheduling identifier transmitted from the current executing terminal of the first service.

9. The first terminal transmits second information to a radio access network node, the second information including: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; transmitting second information including at least one of: information on whether the third terminal is exempt from security verification; The first terminal further includes receiving fourth configuration information sent from a radio access network node, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of a first common logical layer between the first terminal and the associated terminal, and updating a corresponding configuration according to the fourth configuration information; 2. The method of claim 1, wherein the PDCP window and / or the RLC window of the third terminal are initialized according to a serial number of a first data packet received by the third terminal or according to an HFN and / or SN number transmitted from a radio access network node.

10. If the first information indicates that the second terminal is exempt from security verification, the method further comprises:

2. The method of claim 1, further comprising: a first terminal transmitting security and integrity keys and algorithm information assigned to the first terminal by a core network and radio access network node to a second terminal, such that data is encrypted by the second terminal using the security and integrity keys and algorithm information of the first terminal.

11. If the first information does not indicate that the second terminal is exempt from security verification, The third information and the fourth information of the second terminal are respectively assigned to the second terminal by a core network and a radio access network node; Or, The second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; 2. The method of claim 1, wherein the third information includes at least one of a security key, an integrity key, and algorithm information of a NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of an AS.

12. The method according to claim 11, wherein, when the association relationship between the first terminal and the second terminal is an aggregation transmission, the uplink data of the first service transmitted from the first terminal is encrypted by the fourth information of the first terminal, then transmitted to the second terminal, and further encrypted by the fourth information of the second terminal before being transmitted to the radio access network node side.

13. A method for coordinating service transmission, comprising: A radio access network node receives first information from a first terminal, the first information comprising: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and between the first terminal and the associated terminal there is a first link for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; receiving first information including at least one of: information indicating whether the associated terminal is exempt from security verification; the radio access network node configuring a second common logical layer corresponding to the associated terminal for the first service, and sending to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

14. The method according to claim 13 , wherein an association relationship between the first terminal and the associated terminal in the first service includes at least one of an aggregation transmission, an abnormal handover between terminals, and a normal handover between terminals.

15. The aggregation transmission means transmitting data of the first service to the radio access network node via an associated terminal having an association relationship when a predetermined first condition is satisfied, and the first condition includes at least one of the following: an uplink data amount of the first service is greater than a first threshold; a signal quality of at least one terminal is worse than a second threshold; a transmission power of at least one terminal is lower than a third threshold; and a packet error rate of the first service is greater than a fourth threshold; The abnormal handover refers to handing over the current execution terminal of the first service from the source terminal to the target terminal and transmitting and receiving data of the first service through the target terminal when a predetermined second condition is met, and the second condition includes at least one of the following: a heartbeat packet sent from the source terminal is not received by the target terminal; a notification message of the abnormality of the source terminal sent from the source terminal is received by the target terminal; a notification message of the abnormality of the source terminal sent from the network is received by the target terminal; and the abnormality of the source terminal is determined by an upper layer of the target terminal; The normal handover means that when a third predetermined condition is satisfied, the currently executing terminal of the first service is handed over from the source terminal to the target terminal, and data of the first service is transmitted and received via the target terminal, and the third condition includes at least one of the following: an instruction to hand over the terminal of the first service is given from an upper layer of the target terminal; the transmission power of the source terminal is lower than a fifth threshold; and the transmission power of the source terminal is lower than a sixth threshold; The method according to claim 14, wherein the source terminal and the target terminal are two different terminals among the associated terminals, and the first terminal is the source terminal, or the target terminal, or another terminal different from the source terminal and the target terminal.

16. The associated terminals further include a second terminal, and when an associated relationship between the first terminal and the second terminal in a first service includes an abnormal handover between the terminals, the method includes: Determine an abnormal handover behavior for the first service between the first terminal and the second terminal according to delay information of a first link between the first terminal and the second terminal and a first service quality requirement of the first service, send second configuration information to the first terminal, the second configuration information including a configuration of the abnormal handover behavior between the first terminal and the second terminal, and configure the abnormal handover behavior between the first terminal and the second terminal; Or, 15. The method of claim 14, further comprising receiving first instruction information sent from the first terminal, the first instruction information being for indicating an abnormal handover behavior for the first service between the first terminal and a second terminal.

17. The abnormal handover manner includes a first abnormal handover manner and a second abnormal handover manner, In the first abnormal handover aspect, In a downlink direction, send downlink data of the first service to a current execution terminal of the first service through a second common logical layer on a radio access network node side; and when an abnormality occurs in the current execution terminal of the first service, hand over the current execution terminal of the first service from a source terminal to a target terminal, perform a serial number alignment process on the downlink data through the second common logical layer, and send the downlink data to the target terminal; In an uplink direction, the currently executing terminal of the first service sends uplink data of the first service to a radio access network node; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, and the uplink data is sent by the target terminal to a radio access network node, wherein the source terminal and the target terminal perform a serial number alignment process on the uplink data through the first common logical layer; The source terminal is one of the first terminal and the second terminal, and the target terminal is the other of the first terminal and the second terminal; In the second abnormal handover aspect, In a downlink direction, send downlink data of the first service to the first terminal and the second terminal through a second common logical layer on a radio access network node side; and when an abnormality occurs in the source terminal, hand over the currently executing terminal of the first service from the source terminal to a target terminal, and perform a serial number alignment process on the downlink data through the second common logical layer, wherein only the currently executing terminal of the first service analyzes the downlink data received by the first common logical layer; 17. The method of claim 16, wherein in an uplink direction, a currently executing terminal of the first service transmits uplink data of the first service to the first common logical layer, and transmits the uplink data to associated terminals having an associated relationship via the first common logical layer; and when an abnormality occurs in the currently executing terminal of the first service, the currently executing terminal of the first service is handed over from a source terminal to a target terminal, wherein only the currently executing terminal of the first service transmits the uplink data to a radio access network node.

18. In the downlink direction, transmitting downlink data of the first service to the first terminal and the second terminal via a second common logical layer on a radio access network node side specifically includes: The method according to claim 17, further comprising: a second common logical layer on a radio access network node side transmitting downlink data of the first service to the first terminal and the second terminal using one PDSCH scrambled with an RNTI shared by the first terminal and the second terminal.

19. The method according to claim 17, wherein in the first abnormal handover mode and / or the second abnormal handover mode, in the downlink direction, the source terminal of the first service further transmits downlink data of the first service to the target terminal via the first common logical layer after the handover occurs.

20. Prior to receiving the first information, the method further comprises:

14. The method of claim 13, further comprising: the radio access network node sending third configuration information to a first terminal for configuring and establishing a common tunnel and an air interface radio bearer for the first service, so that a common tunnel between the first terminal and a core network and an air interface radio bearer between the first terminal and a radio access network node are established for the first service by the first terminal.

21. If the first terminal is a current executing terminal of the first service, the radio access network node establishes an RRC connection with the first terminal and sends the third configuration information to the first terminal via the RRC connection; 21. The method of claim 20, wherein, when the first terminal has an association relationship with a current executing terminal of the first service and has not established an RRC connection with a radio access network node, the radio access network node sends the third configuration information and the scheduling identifier to the first terminal via the current executing terminal of the first service.

22. The radio access network node receives second information from the first terminal, the second information including: an identifier of a third terminal that newly joins during execution of the first service and has an association relationship with the first terminal; a type of a first link between the first terminal and the third terminal; Delay information of a first link between the first terminal and the third terminal; A relation between the first terminal and the third terminal in a first service; receiving second information including at least one of information on whether the third terminal is exempt from security verification; The radio access network node updates a configuration of the second common logical layer for the first service, and sends fourth configuration information to the first terminal and the associated terminal, the fourth configuration information including at least one of Layer 2 configuration update information, physical resource update information, and configuration update information of the first common logical layer between the first terminal and the associated terminal; 14. The method according to claim 13, wherein the PDCP window and / or the RLC window of the third terminal are initialized according to a serial number of a first data packet received by the third terminal or according to an HFN and / or SN number transmitted from a radio access network node.

23. If the first information indicates that the second terminal is exempt from security verification, the method further comprises:

14. The method of claim 13, further comprising: the radio access network node canceling a trigger of a connection establishment and authorization authentication procedure between the second terminal and a core network, wherein the security and integrity keys and algorithm information used by the second terminal is the same security and integrity keys and algorithm information assigned to the first terminal by the core network and the radio access network node.

24. If the first information does not indicate that the second terminal is exempt from security verification, The third information and the fourth information of the second terminal are respectively assigned to the second terminal by a core network and a radio access network node; Or, The second terminal and the first terminal share third information assigned by a core network, and the fourth information of the second terminal is assigned to the second terminal by a radio access network node; 14. The method of claim 13, wherein the third information includes at least one of a security key, an integrity key, and algorithm information of a NAS, and the fourth information includes at least one of a security key, an integrity key, and algorithm information of an AS.

25. The method according to claim 24, wherein, when the association relationship between the first terminal and the second terminal is an aggregation transmission, after receiving the uplink data transmitted from the second terminal, the radio access network node first decodes the uplink data using the fourth information of the second terminal, and then decodes the uplink data using the fourth information of the first terminal to obtain decoded uplink data.

26. A terminal including a transceiver and a processor, The transceiver transmits first information to a radio access network node, the first information comprising: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and between the first terminal and the associated terminal there is a first link for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; The processor is for receiving first configuration information sent from a radio access network node, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal, and for performing corresponding configuration according to the first configuration information.

27. A terminal comprising a processor, a memory and a program stored in said memory and operable on said processor, the program, when executed by said processor, implementing the steps of the method according to any one of claims 1 to 12.

28. A radio access network node including a transceiver and a processor, The transceiver receives first information from a first terminal, the first information including: Identifiers of associated terminals having an association relationship with the first terminal, where there is at least one associated terminal, and between the first terminal and the associated terminal there is a first link for transmitting data and / or signaling; a type of a first link between the first terminal and the associated terminal; delay information of a first link between the first terminal and the associated terminal; An association relationship between the first terminal and the associated terminal in a first service; and information on whether the associated terminal is exempt from security verification; A radio access network node, wherein the processor is for configuring a second common logical layer corresponding to the associated terminal for the first service, and for transmitting to the first terminal and the associated terminal first configuration information for configuration of the associated terminal, the first configuration information including at least one of Layer 2 configuration information, physical resource information, and configuration information of a first common logical layer between the first terminal and the associated terminal.

29. A radio access network node comprising a processor, a memory and a program stored in the memory and operable on the processor, the program, when executed by the processor, achieving the steps of the method according to any one of claims 13 to 25.

30. A computer readable storage medium storing a computer program, which, when executed by a processor, causes the steps of the method according to any one of claims 1 to 25 to be implemented.

Images