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Method and device for selecting transmission mode

A technology of transmission mode and transmission selection, applied in the field of communication, can solve problems such as inability to meet service reliability requirements, and achieve the effect of meeting reliability requirements and improving transmission quality

Active Publication Date: 2020-07-10
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Currently in the 5G system, a radio bearer can only be configured with CA-based PDCP repetition or DC-based PDCP repetition. However, due to the dynamics of wireless channel changes, the existing CA-based PDCP repetition or DC-based PDCP Duplication may fail to meet the reliability requirements of certain businesses during certain periods of time

Method used

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  • Method and device for selecting transmission mode
  • Method and device for selecting transmission mode
  • Method and device for selecting transmission mode

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Embodiment Construction

[0095] In order to make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0096] In the following, some terms used in the embodiments of the present application are explained, so as to facilitate the understanding of those skilled in the art.

[0097] 1) Terminal equipment, including equipment that provides voice and / or data connectivity to users, for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal device may communicate with the core network via a radio access network (radio access network, RAN), and exchange voice and / or data with the RAN. The terminal equipment may include user equipment (user equipment, UE), wireless terminal equipment, mobile terminal equipment, subscriber unit (subscriber unit...

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Abstract

Provided are a method and a device for selecting a transmission mode. The method comprises: determining first indication information, the first indication information being used to indicate a changedtransmission mode, and / or being used to indicate a change of the transmission mode; and sending the first indication information to terminal device. When the data packet copied on the PDCP layer is transmitted, a plurality of transmission modes can be provided. That is to say, the repetition of the PDCP can have a plurality of modes. The transmission mode selection can be realized through the first indication information, for example, under the condition that the reliability of one repeated mode of the PDCP is not high, the other transmission mode can be selected through the first indication information, so that the reliability requirement of the service is met as much as possible, and the transmission quality of the service is improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a method and device for selecting a transmission mode. Background technique [0002] In the fifth generation mobile communication technology (the 5th generation, 5G) system, a duplication function of a packet data convergence protocol (packet data convergence protocol, PDCP) layer is introduced. The repetition of the PDCP layer usually refers to duplicating the data packet of the radio bearer into two identical packets (that is, repeated packets), and then the two data packets are respectively submitted to two different radio link control (radio link control, RLC) The entity performs transmission, and then transmits to the media access control (media access control, MAC) layer through different logical channels. In order to ensure the reliability of data transmission, the original data packet and the copied data packet transmitted to the MAC layer cannot be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/18
CPCH04L1/0006H04L1/189H04L1/1806H04L1/08H04L1/1896H04L1/1825H04W76/15H04L1/0017H04L1/1812
Inventor 许斌曹振臻李秉肇
Owner HUAWEI TECH CO LTD
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