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Method and device for realizing packet data convergence protocol of LTE relay system

A relay system and aggregation protocol technology, applied in the transmission system, wireless network protocol, electrical components, etc., can solve the problem that the Un interface cannot distinguish UE bearers

Active Publication Date: 2011-04-20
POTEVIO INFORMATION TECH
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Problems solved by technology

[0023] In view of this, the object of the present invention is to propose a method and device for implementing the packet aggregation protocol in the LTE relay system, which can overcome the problem in the prior art that UE bearers cannot be distinguished on the Un interface

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  • Method and device for realizing packet data convergence protocol of LTE relay system
  • Method and device for realizing packet data convergence protocol of LTE relay system
  • Method and device for realizing packet data convergence protocol of LTE relay system

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Embodiment Construction

[0104] The invention discloses a method and device for realizing the Packet Convergence Protocol (PDCP) of the LTE wireless relay system. On the basis of the Uu port PDCP protocol, the Un port PDCP protocol of the wireless relay system is improved. The improvement Including the following aspects:

[0105] (1) Add a PDCP layer identifier——user equipment radio bearer identifier (UE RBID) on the Un interface. The correspondence between the UE RB ID and the UE's GTP-TEID is established when the relay and the base station configure the Un interface radio bearer. Furthermore, a UE RB ID field is added in the header of the PDCP PDU to distinguish data of different UE bearers mapped to the same Un radio bearer.

[0106] (2) In the PDCP entity for the Un wireless bearer, the PDCP entity for the UE bearer is added, and the data carried by different UEs are processed separately, and the joint PDCP numbering of the Un port and the Uu port is realized, that is, the same PDCP SDU is in the...

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Abstract

The present invention discloses a method for realizing packet data convergence protocol (PDCP) of LTE wireless relay system, characterized in that: an identification aiming at user equipment radio bearing is introduced at a PDCP layer of Un port, therefore multiplexing of different user equipment data is supported by the PDCP layer of Un port; in the process that user equipment UE produces business and establishes S1 bearing, the following steps are comprised: the relay node Un radio bearing reconfiguration process of the Un port between the relay node and evolution base station equipment is triggered; in the process of the relay node Un radio bearing reconfiguration, the evolution base station equipment and the relay node complete the many-to-one mapping between radio bearing of Un port user equipments and data radio bearing DRB of Un port relay, then establish the corresponding relationship between user equipment radio bearing identification and tunnel identification of GPRS tunnel protocol GTP which is borne by user equipment S1. In addition, the present invention also discloses a relay node and evolution base station equipment.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and a device for realizing a packet aggregation protocol in an LTE relay system. Background technique [0002] As an evolution of the third generation mobile communication technology (3G), the Long Term Evolution (LTE) project itself is also in a continuous evolution process. In the recently proposed LTE standard (Release R10), a relay (Relay) is introduced. The relay node is connected to the main control evolved base station equipment (Donor eNB, DeNB) through the Un interface, and the interface between the user equipment (UE) and the relay node adopts the Uu interface proposed in LTE version R8. In LTE version R10, the relay system is prepared to adopt two basic protocol stack architectures to support relay transmission. [0003] Protocol stack architecture 1 is called "full layer 3 relay", and the architectures of the control plane and service plane are...

Claims

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Application Information

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IPC IPC(8): H04W76/02H04W80/00H04W92/12H04L29/06
Inventor 路杨潘瑜张莉莉高伟东
Owner POTEVIO INFORMATION TECH
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