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Processing method of uplink data in coordinated multipoint transmission and related device

A technology of multi-point transmission and processing method, which is applied in the field of uplink data processing in coordinated multi-point transmission, and can solve the problems of long time-consuming service base station data, heavy transmission interface load, etc.

Active Publication Date: 2010-12-22
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] An embodiment of the present invention provides a method for processing uplink data in coordinated multi-point transmission, which is used to solve the problems in the prior art that the transmission interface between the serving base station and the coordinated base station has a large load and the serving base station takes a long time to process uplink data.

Method used

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  • Processing method of uplink data in coordinated multipoint transmission and related device
  • Processing method of uplink data in coordinated multipoint transmission and related device
  • Processing method of uplink data in coordinated multipoint transmission and related device

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Embodiment 1

[0047] Taking the example in the background technology as an example, eNB1 is the serving base station of UE1, and eNB2 is the cooperative base station of UE1. Please refer to the attached Figure 4 , which is a flowchart of a method for processing uplink data in coordinated multi-point transmission proposed in this embodiment, and its specific processing process is as follows:

[0048] Step 400, the serving base station eNB1 and the coordinated base station eNB2 respectively receive the uplink data UL data1 sent by UE1 on the time slot corresponding to the HARQ process identifier HARQ-ID1, the uplink data is sent by the mobile terminal according to the uplink data transmission resources pre-allocated by eNB1 of;

[0049] Step 401, the serving base station eNB1 judges whether it can correctly demodulate and decode the uplink data UL data1 received by itself, and does not wait for the eNB2 sent by the cooperative base station eNB2 when it is determined that the uplink data can ...

Embodiment 2

[0058] In order to reduce in the first embodiment, when the serving base station eNB1 cannot correctly demodulate and decode the uplink data UL data1 received by itself and sent by UE1 on the time slot corresponding to HARQ-ID1, it sends a request message to the coordinated base station eNB2, As well as the load pressure on the X2 interface between the serving base station eNB1 and the cooperative base station eNB2 caused by receiving the relevant information of the uplink data sent by the cooperative base station eNB2 according to the request message, this embodiment proposes another kind of service base station that cannot receive When the uplink data sent by the mobile terminal is correctly demodulated and decoded, the scheme for obtaining uplink data-related information from the cooperative base station, please refer to the attachment for the specific process Figure 5 ,

[0059] Step 500, the serving base station eNB1 and the coordinated base station eNB2 respectively rec...

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Abstract

The invention discloses a processing method of uplink data in coordinated multipoint transmission and a related device, aiming to solve the problems of larger load of a transmission interface between a serving base station and a coordinating base station and longer time spent in processing uplink data by the serving base station in the prior art. The method comprises the following steps: receiving the uplink data sent from a mobile terminal by the serving base station, and sending feedback information used for confirming that the uplink data are received accurately to the mobile terminal whenbeing capable of demodulating decodes for the received uplink data accurately; and otherwise, acquiring the related information of the uplink data which is sent by the mobile terminal and received bythe coordinating base station by the serving base station from the coordinating base station when being incapable of demodulating decodes for the received uplink data accurately, and sending feedbackinformation to the mobile terminal based on the received related information of the uplink data and the uplink data sent by the mobile terminal and received thereby.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for processing uplink data in coordinated multi-point transmission and related devices. Background technique [0002] In the existing mobile communication system, due to the interference of neighboring cells, the communication quality of users at the edge of the cell is poor. In order to improve the communication quality of cell edge users, the prior art proposes a Coordinated multi-point transmission (CoMP, Coordinated multi-point transmission / reception) technical proposal, the basic working principle of which is to provide users with poor communication quality at the cell edge, The serving cell of the user and the adjacent cells of the serving cell jointly participate in the data transmission of the user to improve the communication quality of the user at the edge of the cell, and the adjacent cells of the serving cell participating in the data t...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L1/16H04B7/02H04W68/00H04W88/08H04W92/20
Inventor 高有军姜大洁胡臻平崔春风
Owner CHINA MOBILE COMM GRP CO LTD
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