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Wireless bearer configuration method, device and system

A technology of wireless bearer and configuration method, which is applied in the field of communication and can solve problems such as non-support

Active Publication Date: 2021-08-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the receiver terminal does not need to feed back the RLC status report to the sender terminal. Therefore, RLC AM is not supported in the LTE system.

Method used

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  • Wireless bearer configuration method, device and system
  • Wireless bearer configuration method, device and system
  • Wireless bearer configuration method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0260] Such as Image 6 as shown, Image 6 It shows a schematic flowchart of interaction of a method for configuring a radio bearer provided by an embodiment of the present application, and the method includes:

[0261] Step 101, the second terminal determines the association between the first sidelink radio bearer and the second sidelink radio bearer used when the second terminal communicates with the first terminal. Wherein, the first sidelink radio bearer is used for the first terminal to send the first sidelink service data to the second terminal, and the second sidelink radio bearer is used for the second terminal to send the first sidelink service data to the first terminal. A first radio link control (Radio Link Control, RLC) status report of the sidelink service data.

[0262] It should be understood that the RLC layer working mode of the first sidelink radio bearer and the second sidelink radio bearer is an acknowledged mode (Acknowledged Mode, AM) mode, and the fir...

Embodiment 2

[0346] Such as Figure 14 As shown, the embodiment of the present application provides a radio bearer configuration method, including:

[0347] Step 201, the first terminal determines to establish or configure a sidelink radio bearer between the first terminal and the second terminal.

[0348] Step 202, the first terminal sends the first message to the second terminal. Wherein, the first message includes at least one of the following information: quality of service QoS information mapped to the sidelink radio bearer between the second terminal and the first terminal, and first configuration information of the sidelink radio bearer . Wherein, the first configuration information includes at least one of the following information: first indication information and bearer type indication, the first indication information is used to indicate the radio link control RLC layer working mode of the sidelink radio bearer, and the bearer type The indication is used to indicate that the ...

example 1

[0356] Example 1, the sidelink radio bearer includes one RLC entity or two RLC entities are associated with one logical channel.

[0357] Wherein, it can be understood that, when the RLC layer working mode of the sidelink radio bearer is AM, the sidelink radio bearer includes one RLC entity. When the RLC layer working mode of the sidelink radio bearer is UM, the sidelink radio bearer includes two RLC entities.

[0358] If the sidelink radio bearer is configured with the packet replication function, the sidelink radio bearer includes two RLC entities (if the RLC layer working mode of the sidelink radio bearer is AM), and each RLC entity is associated with one Logical channel, or 4 RLC entities (if the RLC layer working mode of the sidelink radio bearer is UM), and one RLC entity for sending and one RLC entity for receiving are associated with one logical channel. Due to the different working modes of the RLC layer, the number of RLC entities included in the sidelink radio bear...

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Abstract

The embodiment of the invention provides a radio bearer configuration method, device and system, relates to the technical field of communication, and is used for improving the reliability of sidelink service. The method comprises: a second terminal determining that a first sidelink radio bearer and a second sidelink radio bearer used when the second terminal communicates with a first terminal are associated; the second terminal sends a first message to the first terminal, the first message comprising first indication information, and the first indication information being used for indicating that the first sidelink radio bearer is associated with the second sidelink radio bearer; wherein the first sidelink radio bearer is used for the first terminal to send first sidelink service data to the second terminal, and the second sidelink radio bearer is used for the second terminal to send a first radio link control (RLC) status report for the first sidelink service data to the first terminal.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a radio bearer configuration method, device, and system. Background technique [0002] In a long-term evolution (long time evolution, LTE) system or a new radio interface (new radio, NR) system, the communication interface between the terminal and the base station may be called a Uu interface, and the communication interface between terminals may be called a PC5 interface. The PC5 interface is generally used in V2X or D2D scenarios where direct communication between devices can be performed. The link between terminals on the PC5 interface is called a sidelink (Sidelink). On the PC5 interface, terminals can transmit data and radio resource control (Radio Resource Control, RRC) signaling through a sidelink radio bearer (Sidelink Radio Bearer, SL RB). [0003] When the terminal communicates with the base station through the Uu interface, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W24/10
CPCH04W24/02H04W24/10H04W76/14H04W72/20H04W28/0252H04W28/0268H04W76/11H04W80/02H04W92/18H04W76/10
Inventor 徐海博肖潇姚楚婷王键
Owner HUAWEI TECH CO LTD