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A downlink resource allocation method and base station

A resource allocation and base station technology, applied in the field of communication, can solve problems such as large amount of information and affect system compatibility, and achieve the effect of small amount of interactive information, easy implementation, and small amount of feedback

Inactive Publication Date: 2019-04-26
POTEVIO INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problem that a large amount of feedback information needs to be fed back during the CoMP coordination process in the prior art and affects system compatibility, on the one hand,

Method used

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  • A downlink resource allocation method and base station
  • A downlink resource allocation method and base station
  • A downlink resource allocation method and base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] This embodiment provides a downlink resource allocation method, including:

[0056] Determine whether the central user of the serving cell is located within the range of the angle of arrival of the coordinated multipoint CoMP user of the adjacent cell of the serving cell, if the central user of the serving cell is located within the angle of arrival (Angle of Arrival, AOA) of the CoMP user of the adjacent cell of the serving cell Within the range, adjust the frequency band used by the central user for communication to not overlap with the frequency band occupied by the CoMP user in the CoMP user list to reduce interference.

[0057] Wherein, the CoMP user list is obtained according to the RSRP of the serving cell where the user is located and the RSRP of the strongest neighboring cell of the serving cell, and the CoMP user list includes the CoMP user ID and the frequency band occupied by the CoMP user ID. The "user" in the above "RSRP according to the serving cell where...

Embodiment 2

[0067] This embodiment provides a method for allocating downlink resources, and the steps are as follows figure 2 shown, including the following steps:

[0068] Step S1, judge and update the CoMP user list according to the RSRP of the serving cell where the user is located and the RSRP of the strongest neighboring cell of the serving cell, wherein the CoMP user list includes the CoMP user ID and the frequency band occupied by the CoMP user ID.

[0069] The users include central users and edge users, and the edge users include CoMP users and non-CoMP users. The central user and the edge user are judged by the signal to interference plus noise ratio (SINR) of the user as the judgment standard. The user whose SINR is greater than the limit value is the central user, and the user whose SINR is smaller than the limit value is the edge user. Edge users are further divided into CoMP users who can implement coordinated multi-point technology and non-CoMP users who cannot implement c...

Embodiment 3

[0102] This embodiment provides a base station, the schematic diagram of which is as follows Figure 9 As shown, it includes: a judging module 10 and an adjusting module 20;

[0103] The judging module 10 is used to judge whether the central user of the serving cell is located within the range of the arrival angle of the coordinated multipoint CoMP user of the adjacent cell of the serving cell. The adjustment module 20 is configured to adjust the frequency band used by the central user for communication to not overlap with the frequency band occupied by the CoMP user in the CoMP user list when the central user of the serving cell is within the range of the arrival angle of the CoMP user of the adjacent cell of the serving cell.

[0104] Wherein, the CoMP user list is obtained according to the RSRP of the serving cell where the user is located and the RSRP of the strongest neighboring cell of the serving cell, and the CoMP user list includes the CoMP user ID and the frequency b...

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Abstract

The invention discloses a downlink resource distribution method and a base station. The downlink resource distribution method comprises steps of judging whether a center user of a service community is in an arrival angel scope of a CoMP user of an adjacent community of the service community; and adjusting the frequency band used for communication by the center user to be not repeated with the frequency band occupied by the CoMP user in a CoMP user list if the center user of the service community is in the arrival angel scope of the CoMP user of the adjacent community of the service community. The CoMP user list is obtained according to the RSRP of the service community of the user and the highest RSRP of the adjacent community of the service community. According to the invention, feedback quantity is small; interaction information quantity between communities is small; there is no need to interact dispatching information in real time; and the method is compatible to current mechanisms of an LTE system to the maximum degree in the aspects of feedback mechanisms and X2 ports and is easy to achieve.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method for allocating downlink resources and a base station. Background technique [0002] In a Long Term Evolution (LTE for short) system, the throughput of a cell edge user is much lower than that of a cell center user. In order to increase the data rate transmitted by cell edge users, as well as improve the throughput and average throughput efficiency of the entire system, LTE-Advanced (LTE-A for short) introduces a transmission point at multiple geographically separated transmission points. The method of coordinated transmission or reception is called Coordinated Multi-Point Transmission / Reception (Coordinated Multi-Point Transmission / Reception, CoMP for short) by The Third Generation Partnership Project (3GPP for short). [0003] At present, the downlink CS / CB CoMP algorithm mainly includes the CS / CB CoMP algorithm based on spatial covariance matrix feedbac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04B7/06
Inventor 于瑞芷
Owner POTEVIO INFORMATION TECH CO LTD