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Coordinated multi-point data transmission method and device

A data transmission method and cooperative multi-point technology, which are applied in the field of cooperative multi-point data transmission methods and devices, can solve the problems of processing multiple cooperative modes, low efficiency of cooperative multi-point data transmission, etc., and achieve the effect of improving efficiency

Active Publication Date: 2018-07-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problem that the coordinated multi-point data transmission in the related art cannot be processed in combination with multiple cooperative modes, resulting in relatively low efficiency of coordinated multi-point data transmission, the present invention provides a coordinated multi-point data transmission method and device, with at least solve the above problems

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  • Coordinated multi-point data transmission method and device
  • Coordinated multi-point data transmission method and device

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Embodiment 1

[0055] This embodiment relates to the field of wireless communication, and specifically relates to a method and system supporting coordinated multiple point transmission and reception (CoMP for short). Considering the lack of combining multiple cooperative modes in CoMP, a method of coordinated multi-point transmission is proposed, which combines the characteristics of JP and CB cooperation modes. According to the situation of the transmission channel, the cooperative mode is adaptively selected, which makes the system more balanced between interference suppression and scheduling performance, and the system transmission obtains better comprehensive effects and is easy to implement.

[0056] The above method for coordinated multi-point transmission includes: the cell user measures the channels of all the cells in the corresponding measurement set, and feeds back the channel characteristic information of the corresponding serving cell and the interfering cell satisfying the inter...

Embodiment 2

[0067] This embodiment is based on the fact that cell edge users between adjacent cells interfere with each other due to frequency resource overlap. The user at the edge of the cell measures the RSRP of the corresponding cell according to the measurement indicated by the base station, and determines the adjacent cell that has non-negligible interference to the user based on the threshold judgment of the RSRP, and feeds back the channel characteristic information corresponding to the adjacent cell to the above-mentioned user. The base station of the cell, the base station exchanges the channel characteristic information and corresponding user information to the corresponding adjacent cell base station, and determines the mutual interference with the edge users of the cell according to the received channel characteristic information and user information exchanged from the adjacent cell base station user. For edge users whose own cell does not receive interference from neighborin...

Embodiment 3

[0081] This embodiment is based on the fact that cell edge users between adjacent cells interfere with each other due to frequency resource overlap. The user at the edge of the cell measures the RSRP of the corresponding cell according to the measurement indicated by the base station, and determines the adjacent cell that has non-negligible interference to the user based on the threshold judgment of the RSRP, and feeds back the channel characteristic information corresponding to the adjacent cell to the above-mentioned user. The base station of the cell, the base station exchanges the channel characteristic information and corresponding user information to the corresponding adjacent cell base station, and determines the mutual interference with the edge users of the cell according to the received channel characteristic information and user information exchanged from the adjacent cell base station user. For edge users whose own cell does not receive interference from neighborin...

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Abstract

The invention discloses a multiple point cooperative data transmission method and device. The method comprises the following steps: channel information corresponding to a first UE (User Equipment) governed by a serving cell and channel information corresponding to one or more second UEs, governed by adjacent cells meeting a predetermined threshold, and the serving cell are received, wherein the first UE and the second UE occupy the same frequency resource; according to the channel information corresponding to the first UE and the channel information corresponding to the second UE, the first UE and the second UE are paired, and the paring enables the energy leakage of the signals of the first UE to the signals of the second UE to be lower than a predetermined requirement under the condition that the correct demodulation of the first UE is not affected ; and according to the result of the pairing, the transmission mode of the first UE and the dispatching modes of the first UE and the second UE are determined, and the multiple point cooperative data transmission is performed. The method overcomes the defects that the efficiency of the multiple point cooperative data transmission is lower because the multiple point cooperative data transmission cannot combine a multiple point cooperative mode for processing in the related art, and improves the efficiency of the multiple point cooperative data transmission.

Description

technical field [0001] The present invention relates to the communication field, and in particular, relates to a coordinated multi-point data transmission method and device. Background technique [0002] With the development of Long Term Evolution-Advance (LTE-A for short) technology, more and more attention is paid to spectrum efficiency and interference handling at cell edge. At present, there are mainly three types of interference problems in LTE at the cell edge: 1. Interference randomization; 2. Interference elimination; 3. Interference coordination (avoidance). However, these three interference processing methods either cannot effectively eliminate interference, or cannot fully utilize resources. [0003] Coordinated multiple point transmission and reception (CoMP for short), as an important enhanced transmission technology in LTE-A, is an effective method to solve the spectrum efficiency and interference at the cell edge. In the CoMP technology, the joint processing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
Inventor 黄双红贺抗生李萌辉席志成王文焕
Owner ZTE CORP
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