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Method, system and device for sending data packet

A data packet sending technology, applied in the field of communication, can solve problems such as reducing user experience and increasing UE's waiting time for data packets

Active Publication Date: 2010-12-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, when the UE is handed over, the base station needs to receive the data packet returned by the relay node before sending this part of the data packet to the UE The target node of the handover, the data packet return process will increase the waiting time of the UE for the data packet and reduce the user experience

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  • Method, system and device for sending data packet
  • Method, system and device for sending data packet
  • Method, system and device for sending data packet

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Embodiment Construction

[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0081] The core idea provided by the embodiment of the present invention is: the base station caches the data packet sent to the relay node and updates the data packet according to the sequence number of the Un interface from the relay node, and the base station receives the handover trigger information from the relay node Finally, the cached data packet can be directly sent to the UE through the target node. Compared with the prior art, the waiting time of the UE f...

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Abstract

The invention discloses a method for sending a data packet, which comprises that: a base station sends the data packet to a relay node, and copies and caches the data packet sent to the relay node; the base station receives report information carrying a Un interface serial number from the relay node, and updates the cached data packet according to the Un interface serial number; and the base station receives switch triggering information from the relay node, and sends the cached data packet to switching UE through a target node according to the switch triggering information. The base station caches the data packet sent to the relay node and updates the data packet according to the Un interface serial number from the relay node, and can directly send the cached data packet to the UE through the target node after receiving the switch triggering information from the relay node, so that compared with the prior art, the method shortens the time of waiting for the data packet by the UE in the switching process, and improves the use experience of a user.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method, system and device for sending data packets. Background technique [0002] In the 3GPP LTE-Advanced (3rd Generation Partnership Project Long Term Evolution, 3rd Generation Partnership Project Long Term Evolution) system, the relay cooperative transmission method is used to improve the service quality of the cell edge users and expand the cell coverage. The 3GPP LTE-Advanced system includes Donor-eNB (base station), Relay-Node (relay node) and UE (User Equipment, user equipment). Data packets are transmitted between the base station and the relay node through the Un interface, and the relay node The data packet is transmitted between the UE and the UE through the Uu interface. The base station first sends the data packet to be sent to the UE to the relay node. After the relay node receives the data packet, it sends the data packet to the UE. [0003] When t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/12H04W28/02H04L12/56H04L47/43
Inventor 刘佳敏汪颖
Owner DATANG MOBILE COMM EQUIP CO LTD