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A method and device for inter-cell cooperation

An inter-cell and cell-to-cell technology, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve the problems of PRB reduction and low cell throughput, so as to avoid reduction, ensure throughput, and realize cooperation between cells Effect

Active Publication Date: 2018-11-30
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Embodiments of the present invention provide an inter-cell coordination method and device to solve the problem in the prior art that the throughput of the cell is low due to the reduction of available PRBs

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Embodiment Construction

[0062] In order to solve the problem in the prior art that the throughput of the cell is low due to the reduction in the number of available PRBs, the embodiment of the present invention conducts an in-depth study on the existing cooperation scheme, and finds that the CS scheme, namely The CS transmission mode is suitable for application scenarios where the service load of the entire network does not reach 100%, that is, for a certain cell, when it is silent on a part of PRBs and the remaining PRBs are sufficient for its use, the existing CS transmission mode is convenient. can apply. Based on the above research, an embodiment of the present application proposes an inter-cell cooperation scheme. In this technical solution, after receiving the location information of the first UE in the first cell, adaptively select the cooperation mode of the second cell by judging whether the traffic load of the second cell exceeds a preset load threshold. On the one hand, when the judgment ...

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Abstract

The invention discloses an inter-cell coordination method and an inter-cell coordination device, which are used for solving a problem of a relatively low throughput of cells caused by a decrease of PRB (Physical Random Block) in the prior art. The method comprises the following steps of: receiving position information of the PRB of a first UE in a first cell, wherein the first UE meets that the measured difference value between the RSRP (Reference Signal Received Power) of the first cell and the NRSRP (Neighbor Reference Signal Received Power) of a second cell is not more than a preset threshold value; judging whether the service load capacity of the second cell is greater than a preset load threshold value; when the judging result is that the service load capacity of the second cell is greater than the load threshold value, indicating the second cell to adopt a CB (Coordinated Beam forming) transmission mode on the PRB indicated by the position information of the PRB of the first UE; and when the judging result is that the service load capacity of the second cell is not greater than the load threshold value, indicating the second cell to adopt a CS (Coordinated Scheduling) transmission mode on the PRB indicated by the position information of the PRB of the first UE.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method and device for inter-cell cooperation. Background technique [0002] In the existing Time Division-Long Term Evolution (TD-LTE) system, the most widely used inter-cell coordination scheme is the coordinated scheduling (Coordinated Scheduling, CS) scheme. Within each Transmission Time Interval (Transmission Time Interval, TTI), the implementation process of the CS scheme is divided into four main steps, such as figure 1 Shown: [0003] ①Issuing measurement and control: Each cell issues measurement control to the user equipment (User Equipment, UE) residing in the cell, and the measurement reporting event is, when the measured reference signal received power (ReferenceSignal Received Power, RSRP) and the NeighborReference Signal Received Power (NeighborReference Signal Received Power, NRSRP) of the same-frequency neighbor cell are within 6dB, the mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W28/16H04W72/12
Inventor 旷婧华许宁邓伟
Owner CHINA MOBILE COMM GRP CO LTD
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