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Method, system and device for sending data packet

A technology of data packets, sent to, used in the field of communication

Active Publication Date: 2013-08-07
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

[0092] 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.

[0093] The core idea provided by the present invention is: the base station caches the data packet sent to the relay node and updates the data packet according to the identification information from the relay node, and after receiving the handover trigger information from the relay node, the base station can directly The buffered data packet is sent to the UE through the target node, compared with the prior art, the waiting time of the UE for the data packet in the ...

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Abstract

The present invention discloses a method for sending data packets, which includes that: a base station sends data packets to a relay node, and backups and caches the data packets to be sent to the relay node (101); the base station receives identifier information from the relay node, and updates the cached data packets according to the identifier information (102); the base station receives handoff triggering information from the relay node, and according to the handoff triggering information sends the cached data packets to a User Equipment (UE) in which handoff occurs via a target node (103). In the present invention, the base station caches the data packets to be sent to the relay node, and updates the data packets according to the identifier information from the relay node; after receiving the handoff triggering information from the relay node, the base station can directly send the cached data packets to the UE via the target node. Compared with the prior art, the present invention reduces the wait time of UE for the data packets during handoff, thus improving the use experience of the 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/14H04W36/08H04W36/24H04W88/04H04W88/08
CPCH04W36/02
Inventor 刘佳敏鲍炜
Owner DATANG MOBILE COMM EQUIP CO LTD