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A data transmission method and device

A data transmission method and data technology, applied in the communication field, can solve problems such as RN identification or data processing, and achieve the effect of improving processing efficiency

Active Publication Date: 2020-08-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in a multi-hop relay network including RNs with L2 architecture, there is currently no method for how the RN recognizes or processes the data it receives

Method used

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  • A data transmission method and device
  • A data transmission method and device
  • A data transmission method and device

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Experimental program
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Embodiment Construction

[0114] In order to facilitate the understanding of this application, the relevant concepts involved in the embodiments of this application are now described.

[0115] Donor base station system: a base station system that provides wireless access to the relay node, and is connected to the relay node through a wireless Un interface. The donor base station system may be an independent donor base station (Donor evolved Node Base Station, DeNB), and may also be composed of a centralized unit (Centralized Unit, CU) and a distributed unit (Distributed Unit, DU).

[0116] The CU is mainly used for centralized wireless resource and connection management control, and has wireless high-level protocol stack functions, such as: radio resource control (Radio Resource Control, RRC) layer and PDCP layer. CU can also support the sinking of part of the core network functions to the access network, called the edge computing network, which can meet the higher network delay requirements of emerging ser...

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PUM

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Abstract

The embodiment of the present application discloses a data transmission method and device, which relate to the field of communication technology, and enable the relay node RN to quickly identify and process the data it receives. The method is applied to the first communication device or a chip in the first communication device, and the first communication device is an intermediate forwarding node, a serving node of a terminal, a host base station, or a distributed unit DU in a host base station system. The method includes: acquiring first data; sending a first message including the first data and a type identifier to the second communication device, where the type identifier is used to indicate the type of the first data, and the type of the first data includes user plane data, status report, At least one of a control plane message and a radio resource control RRC message of the terminal.

Description

Technical field [0001] The embodiments of the present application relate to the field of communication technology, and in particular, to a data transmission method and device. Background technique [0002] The relay node (RelayNode, RN) has the characteristics of wireless self-backhauling and flexible placement. In the scenario of multi-hop relay, the user equipment (User Equipment, UE) peer-to-peer Packet Data Convergence Protocol (PDCP) layer can be placed in the host base station system, and the UE peer-to-peer radio link control layer The protocol (Radio Link Control, RLC) layer is placed in the RN. In this way, for the UE data, the RN only needs to complete the processing of the physical layer (PhysicalLayer, PHY), the media access control (Media Access Control, MAC) layer, and the RLC layer. At this time, the protocol architecture of the RN is referred to as a layer 2 (Layer 2, L2) architecture. [0003] However, in the multi-hop relay network including the RN of the L2 ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08H04L5/00
CPCH04L69/06H04L69/321H04L69/322H04W40/22H04L69/324H04L69/326H04W24/10
Inventor 王瑞戴明增李铕曾清海
Owner HUAWEI TECH CO LTD