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Data transmission method, base station and user equipment

A data transmission method and technology for user equipment, applied in the fields of data transmission methods, base stations and user equipment, can solve the problems of large resource overhead and delay, low transmission efficiency of small packet services, etc., and achieve the effect of improving transmission efficiency

Active Publication Date: 2013-08-21
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the data volume of the small packet service is small, the resource overhead and delay caused by the random access process are large, resulting in low transmission efficiency of the small packet service

Method used

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  • Data transmission method, base station and user equipment
  • Data transmission method, base station and user equipment
  • Data transmission method, base station and user equipment

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Experimental program
Comparison scheme
Effect test

Embodiment approach

[0075] If the base station receives the first sequence code sent by the UE, it determines that the UE successfully receives the first data. If the base station receives the second sequence code sent by the UE, it determines that the UE has not successfully received the first data. That is, the UE feeds back the information of successfully receiving and unsuccessfully receiving the first data through different sequence codes. This implementation manner requires random access information and first data to be received independently, so it is applicable to the above-mentioned second implementation manner in which the base station sends the first data and random access information to the UE at the same time.

[0076] Further, after the base station determines that the UE has failed to receive the first data, it may re-perform the operation of sending the first data and random access information to the UE at the same time, that is, retransmit the first data, and wait until the base ...

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Abstract

The invention provides a data transmission method, a base station and user equipment. One transmission method comprises the following steps that the base station sends first data and random access information to the user equipment (UE) at the same time, and the data station receives accepting state information of the first data fed back by the random access information. The other transmission method comprises the following steps that the UE receives the first data and the random access information sent by the base station at the same time, and the UE feeds back the accepting state information of the first data to the base station according to the random access information. According the technical scheme, the base station sends transmission data to the UE in the process of random access, therefore, signaling interaction and time delay are reduced, and transmission efficiency of the data is improved.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a data transmission method, base station and user equipment. Background technique [0002] At present, in applications such as M2M or smart phones, small packet services are often transmitted. For example, the background program of a smart phone often initiates small packet services. Transmission occurs at periodic or irregular specific times. [0003] If the user equipment (User Equipment, UE) is currently in the RRC connection state, but the uplink is out of sync, if the base station (NodeB) has a small packet service that needs downlink transmission, the UE is usually required to perform non-contention random access. After uplink synchronization, Only the base station can send the downlink small packet service. Since the data volume of the small packet service is small, the resource overhead and time delay caused by the random access process are large, resulting in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08
CPCH04L1/1861H04L1/1896H04L1/189H04W72/23H04W74/002H04W74/0838H04L1/18H04W72/21H04L5/0055H04W74/0833
Inventor 权威陈玉华刘昆鹏刘江华张戬
Owner HUAWEI TECH CO LTD
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