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Method, device and system for processing feedback information

A feedback information and processing method technology, applied in the field of feedback information processing methods, equipment and systems, can solve problems such as UE erroneous data retransmission and the inability of the base station to effectively schedule UE new data transmission, etc., to reduce interaction and increase delay. Effect

Active Publication Date: 2017-09-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a feedback information processing method, device and system, which are used to solve the problem that UE cannot retransmit error data in time due to the large time delay required for interaction between base stations in the prior art , or the problem that the base station cannot effectively schedule the new data transmission of the UE

Method used

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  • Method, device and system for processing feedback information
  • Method, device and system for processing feedback information

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Embodiment 1

[0194] Embodiment 1. In this embodiment, it is assumed that there are two base stations (serving base station and a coordinated base station) participating in the uplink coordinated transmission of the UE, see image 3 As shown, the interaction between the serving base station, the coordinated base station and the UE includes the following steps:

[0195] Step 301, the serving base station exchanges the scheduling information of the UE's uplink data transmission with the coordinated base station, and schedules the UE for uplink data transmission;

[0196] Step 302, the UE performs uplink data transmission according to the scheduling information of the serving base station;

[0197] Step 303, the serving base station and the coordinated base station respectively detect the uplink data sent by the UE according to the scheduling information, and obtain corresponding first ACK / NACK information (that is, first feedback information) according to whether the uplink data is transmitte...

Embodiment 2

[0216] Embodiment 2, assuming that there are three base stations (serving base station and two coordinated base stations) participating in the uplink coordinated transmission of the UE, see Figure 4 As shown, the interaction between the serving base station, the coordinated base station and the UE includes the following steps:

[0217] Step 401, the serving base station exchanges the scheduling information of the UE's uplink data transmission to each coordinated base station, and schedules the UE to perform uplink data transmission.

[0218] Step 402, the UE performs uplink data transmission according to the scheduling information of the serving base station;

[0219] Step 403, the serving base station and each coordinated base station respectively detect the uplink data sent by the UE according to the scheduling information, and obtain corresponding first ACK / NACK information (ie first feedback information) according to whether the uplink data is transmitted correctly;

[0...

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Abstract

The invention discloses a feedback information processing method, equipment and system, which are used to solve the problem in the prior art that UE cannot retransmit error data in time due to long interaction delay between base stations. The method in the embodiment of the present invention includes: the UE respectively receives the first feedback information determined by each base station; according to the content of each first feedback information, determines whether to feed back the second feedback information, and after determining that the second feedback information needs to be fed back, and Feedback the second feedback information, so that any base station knows the situation of other base stations sending the first feedback information according to whether the UE has fed back the second feedback information; or determine the content of the second feedback information according to the content of each first feedback information, And feed back the second feedback information, so that any base station learns that other base stations send the first feedback information according to the content of the second feedback information. The embodiment of the present invention reduces the interaction between base stations, and does not increase the time delay of UE uplink data retransmission.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method, device and system for processing feedback information. Background technique [0002] Coordinated Multipoint Transmission / Reception (CoMP) technology refers to coordinated transmission between multiple geographically separated transmission points. Generally speaking, the multiple transmission points may be base stations of different cells, or may be multiple remote radio heads (Remote Radio Head, RRH) controlled by the base station of the same cell. Coordinated transmission between multiple transmission points can effectively reduce interference between different transmission points, and improve throughput of user equipment (User Equipment, UE), especially cell edge user equipment. According to the difference of uplink / downlink transmission, CoMP technology is divided into uplink CoMP transmission and downlink CoMP transmission, wherein, uplink Co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L1/18
Inventor 陈文洪高秋彬高雪娟林亚男
Owner DATANG MOBILE COMM EQUIP CO LTD
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