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Method and device for distributing physical cell identity

A technology of physical cell identification and cell, which is applied in the directions of pilot signal allocation, transmission path sub-channel allocation, network data management, etc. It can solve the problems of inability to meet minimum reference signal interference and low reference signal interference effectiveness, and reduce reference signal interference. Signal interference, effect of improving effectiveness

Active Publication Date: 2014-04-23
SHANGHAI DATANG MOBILE COMM EQUIP +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to factors such as terrain, buildings, and transmit power, the cell with the strongest mutual interference may not be the cell with the closest distance. minimum) requirements
[0006] In summary, the current method of assigning physical cell identities is less effective in reducing reference signal interference

Method used

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  • Method and device for distributing physical cell identity
  • Method and device for distributing physical cell identity
  • Method and device for distributing physical cell identity

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Additionally, the terms "system" and "network" are often used herein interchangeably. The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone ...

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Abstract

The invention relates to the technical field of wireless communication and discloses a method and a device for distributing a physical cell identity. In the scheme, when the physical cell identity is distributed, firstly, the interference degree of each type of neighbor cells on a primary cell which needs to be subjected to distribution of the physical cell identity is determined and then according to a remainder value corresponding to the minimum interference degree, the primary cell is subjected to distribution of the physical cell identity, and thus, effective reduction on interference of reference signals is implemented and effectiveness of reducing interference of the reference signals is improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for allocating physical cell identifiers. Background technique [0002] In the TD-LTE (Time Division Long Term Evolution, Time Division Long Term Evolution) system, the physical cell ID (identification) is bound to resource mapping, code resource configuration, and frequency hopping mechanisms one by one, so the configuration of the physical cell ID is the same as that of TD -SCDMA (Time Division Synchronized Code Division Multiple Access, time division synchronous code division multiple access) system scrambling code planning plays an important role, especially in the same frequency network. [0003] The physical cell ID is the main decision information for generating the initial value of the scrambling code in the physical channel, especially the broadcast channel and the control channel. The correlation of the physical cell ID determi...

Claims

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Application Information

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IPC IPC(8): H04W16/02H04W24/02
CPCH04W16/10H04W24/10H04W24/02H04B17/318H04B17/336H04L5/0048H04W8/26
Inventor 周文千何毓嵩
Owner SHANGHAI DATANG MOBILE COMM EQUIP
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