JP-7856786-B2 - Data transmission method and apparatus, terminal and network-side equipment

JP7856786B2JP 7856786 B2JP7856786 B2JP 7856786B2JP-7856786-B2

Inventors

鄭倩
劉佳敏
ブバカールキンバディーアダム

Assignees

維沃移動通信有限公司

Dates

Publication Date: 20260511
Application Date: 20230322
Priority Date: 20220324

Claims (13)

A data transmission method, The first terminal transmits user plane data and/or control plane data to network-side equipment via multiple paths, Here, the plurality of paths include at least a first path and a second path, wherein the first path is a direct path through which the first terminal communicates directly with the network-side device, and the second path is an indirect path through which the first terminal communicates with the network-side device via the second terminal, or the first path is an indirect path through which the first terminal communicates with the network-side device via the second terminal, and the second path is a direct path through which the first terminal communicates directly with the network-side device. Before the first terminal transmits user plane data and/or control plane data to network-side equipment via multiple paths, the method The first terminal communicates with the network-side equipment via the first path, If the route addition conditions are met, the first terminal sends a multiple route addition request message to the network-side device via the existing first route, requesting the addition of the second route. If the first route is a direct route through which the first terminal communicates directly with the network-side device, and the second route is an indirect route through which the first terminal communicates with the network-side device via the second terminal, then the multiple route addition request message further includes the first information, and the route addition condition is The network-side device receives a second instruction, which is used to instruct the network-side device to support the multiplexing function. The link quality includes at least one of the following: A data transmission method wherein the at least one candidate terminal includes the second terminal, and the first information includes the serving cell identifier information of the candidate terminal .
The link quality of at least one candidate terminal must meet the pre-configured communication conditions. The signal quality between the candidate terminal and the first terminal satisfies the predetermined communication conditions. The data transmission method according to claim 1 , wherein the signal quality of the serving cell of the candidate terminal satisfies at least one of the following:
The first piece of information mentioned above is, The signal quality between the first terminal and the candidate terminal, The data transmission method according to claim 1 , further comprising at least one of the identifier information of the candidate terminal.
Before the first terminal transmits user plane data and/or control plane data to network-side equipment via multiple paths, the method The first terminal receives a multiple route addition configuration message returned from the network-side device, The data transmission method according to claim 1 , further comprising the first terminal sending a multiple route addition completion message to the network-side device.
If the first route is a direct route through which the first terminal communicates directly with the network-side device, and the second route is an indirect route through which the first terminal communicates with the network-side device via the second terminal, then the multiple route addition configuration message is: The identifier information of the second terminal, The serving cell identifier information of the second terminal, First instruction information for instructing a route switching operation or a route addition operation, Rules for transmitting control plane data via the first path and the second path, The data transmission method according to claim 4 , comprising at least one of the first path and a rule for transmitting user plane data via the second path.
If the first route is an indirect route through which the first terminal communicates with the network-side device via the second terminal, and the second route is a direct route through which the first terminal communicates directly with the network-side device, then the route addition condition is: The upper layer of the first terminal instructs that the service of the first terminal be transmitted via the second path or via both the first and second paths. The network-side device receives a second instruction, which is used to instruct the network-side device to support the multiplexing function. This includes at least one of the following: that there is at least one candidate cell that satisfies the pre-set communication conditions, The data transmission method according to claim 1 , wherein the at least one candidate cell includes a cell in the direct path of the first terminal.
The aforementioned multiple route addition request message further includes first information, and the first information is The cell identifier information of the candidate cell, The data transmission method according to claim 6 , comprising at least one of the following: the signal quality of the candidate cell of the first terminal.
If the first route is an indirect route through which the first terminal communicates with the network-side device via the second terminal, and the second route is a direct route through which the first terminal communicates directly with the network-side device, then the multiple route addition configuration message is: The cell identifier information of the direct route, First instruction information for instructing a route switching operation or a route addition operation, Rules for transmitting control plane data via the first path and the second path, The data transmission method according to claim 4 , comprising at least one of the first path and a rule for transmitting user plane data via the second path.
The rules for transmitting user plane data and/or control plane data via the first and second paths are stipulated by the protocol. Or, The aforementioned method, The first terminal further includes receiving routing configuration information of the network-side equipment, the routing configuration information includes rules for transmitting user plane data and/or control plane data via the first route and the second route. Or, The aforementioned rule is, Rules for transmitting signaling through the first path and the second path, Rules for transmitting uplink data and/or downlink data via the first route and the second route, The difference of the signaling wireless bearer SRB1 is that it can transmit simultaneously on the first path and the second path, SRB1 can be transmitted simultaneously via the first and second paths after copying, The difference between the data wireless bearer DRBs is that they can transmit simultaneously on the first and second paths, The DRB includes at least one of the following: that it can be transmitted simultaneously on the first path and the second path after copying. The aforementioned rule is, The data transmission method according to claim 5 , further comprising the scenario that the first terminal and the second terminal are in the same base station and that transmission and isolation of SRB3 are not permitted.
Before the first terminal transmits user plane data and/or control plane data to network-side equipment via multiple paths, the method The first terminal further includes receiving a first paging instruction from the network-side device, the first paging instruction indicating the data transmission method of the first terminal. The first paging instruction mentioned above is, To instruct the establishment of a single or multiple paths between the first terminal and the network-side equipment, When the first terminal instructs to establish a single route, it instructs whether the established route is a direct route or an indirect route, The data transmission method according to claim 1, wherein when the first terminal instructs to establish multiple paths, the first terminal instructs to trigger an indirect path addition flow using existing direct connection data, or to trigger a direct path addition flow using existing indirect connection data, or to establish both direct and indirect paths simultaneously.
A data transmission method, The network-side equipment transmits user plane data and/or control plane data to the first terminal via multiple paths, Here, the plurality of paths include at least a first path and a second path, wherein the first path is a direct path through which the first terminal communicates directly with the network-side device, and the second path is an indirect path through which the first terminal communicates with the network-side device via the second terminal, or the first path is an indirect path through which the first terminal communicates with the network-side device via the second terminal, and the second path is a direct path through which the first terminal communicates directly with the network-side device. Before the network-side equipment transmits user plane data and/or control plane data to the first terminal via multiple paths, the method The network-side device communicates with the first terminal via the first path, The network-side device receives a multiple route addition request message transmitted by the first terminal via an existing first route, requests the addition of the second route, and transmits the multiple route addition request message after determining that the first terminal has met the route addition conditions. If the first route is a direct route through which the first terminal communicates directly with the network-side device, and the second route is an indirect route through which the first terminal communicates with the network-side device via the second terminal, then the multiple route addition request message further includes the first information, and the route addition condition is The first terminal receives a second instruction from the network-side device, and the second instruction is used to instruct the network-side device to support the multiplexing function. The link quality includes at least one of the following: A data transmission method wherein the at least one candidate terminal includes the second terminal, and the first information includes the serving cell identifier information of the candidate terminal .
A terminal comprising a processor and memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, a step of the data transmission method according to any one of claims 1 to 10 is realized.
A network-side device comprising a processor and memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, it realizes the steps of the data transmission method described in claim 11 .

Description

(Cross-reference of related applications) This application claims priority to Chinese Patent Application No. 202210303689.X, filed in China on March 24, 2022, and all contents of said application are incorporated herein by reference. This application belongs to the field of telecommunications technology and specifically relates to data transmission methods and apparatus, terminals, and network-side equipment. Related technologies allow for the establishment of a single-path connection between the terminal and network-side equipment. For example, a direct path can be established, or an indirect path can be established. The throughput of a single-path connection is limited, and improved reliability is desired. This is a block diagram of a wireless communication system to which the embodiments of this application can be applied.This is a schematic diagram of the relay scenario.This is a schematic diagram of the Sidelink Relay (SL relay) architecture.This is a schematic diagram of a non-SL relay architecture.This is a diagram of the first terminal-side data transmission method of the embodiment of this application.This is a schematic diagram of the network-side device-side data transmission method according to the embodiment of this application.This is a schematic diagram of the structure of the first terminal-side data transmission device according to the embodiment of this application.This is a schematic diagram of the network-side equipment-side data transmission device according to an embodiment of this application.This is a schematic diagram of the structure of the communication device according to the embodiment of this application.This is a schematic diagram of the structure of the terminal of the embodiment of this application.This is a schematic diagram of the network-side equipment structure of the embodiment of this application. The following clearly and completely describes the technical concepts in the embodiments of this application, linking them to the drawings of the embodiments. Clearly, the embodiments described are only a subset of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application are all within the scope of protection of this application. The terms "first," "second," etc., used in the specification and claims of this application are intended to distinguish similar subjects and not to describe a specific order or sequence. It should be understood that these terms are interchangeable where appropriate, so that the embodiments of this application may be carried out in an order other than those illustrated or described herein. Furthermore, the subjects distinguished by "first" and "second" are generally of the same type and do not limit the number of subjects; for example, the first subject may be one or more. In the specification and claims, "and/or" indicates at least one of the connected subjects, and the letter "/" generally indicates that the preceding and succeeding subjects are in an "or" relationship. It should be noted that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but also include other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), and Orthogonal Frequency Division Multiple Access (OHz). This technology is applicable to Access (OFDMA), Single-carrier Frequency Division Multiplexing (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of this application are always interchangeable, and the described technologies may be applied to the systems and radio technologies mentioned above, or to other systems and radio technologies. The following description illustrates a New Radio (NR) system and uses NR terminology extensively; however, these technologies may be applied to applications other than NR systems, such as sixth-generation (6G) communication systems. Figure 1 shows a block diagram of a wireless communication system to which the embodiments of this application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. Here, terminal 11 includes mobile phones, tablet personal computers (Tablet Personal Computers), laptop computers (also called notebooks), personal digital assistants (PDAs), palmtop computers, netbooks, ultra-mobile personal computers (UMPCs), mobile internet devices (MIDs), augmented reality (AR)/virtual reality (VR) devices, robots, wearable devices, and in-vehicle devices (Vehicle User devices). Terminal-side equipment may include Equipment (VUE), Pedestrian User Equipment (PUE), smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), deposit machines, or se