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A PCI allocation method and device

An allocation method, an allocated technology, applied in the field of communication, can solve problems such as low success rate

Active Publication Date: 2017-10-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a PCI allocation method and device, which are used to solve the technical problem of low success rate when accurately allocating PCI to base stations in the prior art, and achieve the technical effect of improving the success rate of PCI allocation

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  • A PCI allocation method and device

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Experimental program
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Embodiment Construction

[0024] The PCI allocation method in the embodiment of the present invention includes: constructing a conflict matrix, the conflict matrix is ​​an m×m square matrix, m is the number of new base station identifications allocated to the base station to be allocated PCI, the conflict matrix in the Element R i，j Indicate the PCI conflict relationship between the i-th base station and the j-th base station, where 1≤i, j≤m; each column vector in the conflict matrix is ​​summed separately, and the first conflict times matrix is ​​obtained according to the summation result, The first conflict times matrix is ​​a 1×m matrix; the elements in the first conflict times matrix are sorted from large to small to obtain a second conflict times matrix, and the elements in the second conflict times matrix are The column number corresponding to the element in the first conflict times matrix; determine whether the required PCI number is not greater than the available PCI number according to the sec...

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Abstract

The invention discloses a PCI allocation method, which is used for improving the success rate of PCI allocation. The method includes: constructing a conflict matrix; summing each column vector in the conflict matrix, and obtaining a first conflict times matrix according to the summation result; sorting the elements in the first conflict times matrix from large to small , to obtain the second conflict times matrix, the elements in the second conflict times matrix are the column numbers corresponding to the elements in the first conflict times matrix; determine whether the required PCI number is not greater than the available PCI number according to the second conflict times matrix and the number of available PCIs ; When it is determined that the number of required PCIs is not greater than the number of available PCIs, allocate PCIs to each base station to which PCIs are to be allocated. The invention also discloses a device for realizing the method.

Description

technical field [0001] The invention relates to the field of communications, in particular to a PCI allocation method and device. Background technique [0002] The LTE (Long Term Evolution) system is the evolution direction of the Universal Mobile Telecommunications System (UMTS), one of the third-generation mobile communication system standards, which can provide higher-speed packet data services and more flexible and high-quality services support. [0003] PCI (Physical Cell Identifier or Physical-layer Cell Identity, physical cell identity) is an important parameter in the LTE system, which can be used to identify the cell, so that the user equipment (User Equipment, UE) can identify wireless signals from different sectors ; At the same time, it can be used to assist in measuring and reporting sector signal strength when UE is moving or performing handover or cell reselection. [0004] There are 504 PCIs available for allocation in the LTE system. These PCIs are divide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00
CPCH04W16/02
Inventor 潘春锦张世辉刘康康李华山金海涛董文斌
Owner ZTE CORP