Distribution method of PCIs (Physical Cell Identities) in long-term evolution network

A technology of physical cell identification and long-term evolution network, which is applied in network planning, wireless communication, electrical components, etc., and can solve the problems that PCI may not be enough, and there is no division and allocation of PCI.
CN101990210AActive Publication Date: 2011-03-23ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZTE CORP
Publication Date
2011-03-23

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Abstract

The invention discloses a distribution method of PCIs (Physical Cell Identities) in a long-term evolution network. The method comprises the following steps of: firstly, partitioning two respectively continuous PCI spaces in a PCI range, wherein one is used for distributing PICs in a picocell, and the other is used for distributing PCIs in a micro base cell; distributing a PCI space large enough to the micro base cell so that the PCI multiplexing distance in the micro base cell is far enough, which means the multiplication of ring number of enough macrocell clusters forming the micro base by the cell diameter, and the enough large PCI space means that the number of the distributed PCIs is at least equal to the total cell number of the enough macrocell clusters. On the premise that the macrocell clusters and the picocell are ensured to use different PCI spaces, the PCI multiplexing distance of the macrocell is far enough, PCI conflict probability among picocells is lower, and resources are preserved for network expansion.
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Description

technical field

[0001] The present invention relates to a wireless communication network resource allocation technology, in particular to a method for allocating Physical Cell Identification (PCI, Physical Cell Identification) in a Long Term Evolution (LTE, Long Term Evolution) system. Background technique

[0002] With the development of wireless communication technology towards multi-service and broadband, the 3rd Generation Partnership Project (3GPP, 3 rd Generation Partnership Project) launched the Long Term Evolution (LTE, Long Term Evolution) project.

[0003] The purpose of 3GPP to develop various wireless broadband access technologies is to provide customers with a full range of mobile multimedia service experience. However, under many conditions, this purpose has not been achieved, especially in remote areas or residential areas, because the signal in these areas is poor, which makes this purpose of 3GPP impossible to achieve.

[0004] A viable solution is to dep...

Claims

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