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A method for implementing ordered allocation of pilot frequency in CDMA system

A code division multiple access and pilot technology, which is applied in the field of realizing orderly allocation of pilots, can solve problems such as unstable operation quality of wireless networks, and achieve the effects of fast and standardized methods, wide adaptability, and clear processes

Inactive Publication Date: 2008-03-12
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0015] Based on the current CDMA network planning, the disorder of pilot planning brings latent instability factors to the quality of wireless network operation, and the technical problem of planning bottlenecks in network expansion and construction in the later stage, the present invention proposes a method that can effectively conduct pilot A method for planning and meeting the needs of smooth expansion, specifically a method for orderly allocating pilots in a code division multiple access system

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  • A method for implementing ordered allocation of pilot frequency in CDMA system
  • A method for implementing ordered allocation of pilot frequency in CDMA system

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Embodiment Construction

[0045] Below in conjunction with accompanying drawing, method of the present invention will be further described:

[0046] The invention proposes a method for planning the CDMA network pilot. In this method, on the premise of reasonably setting the minimum coverage radius of the planned cell and the pilot increment (Pilot_INC), by setting the grid size of the pilot reuse area, each grid is assigned a pilot group in order. , and then perform pilot multiplexing between regions.

[0047] The invention can be used in the initial pilot planning process of the CDMA wireless network, and can also be used in the pilot planning of the later network expansion hypothesis, and has the characteristics of smooth expansion and little impact on the existing network.

[0048] The flow chart of the method of the present invention is shown in FIG. 1 .

[0049] The key process of this method is described below:

[0050]1. Analyze the potential network scale and expansion requirements, and then...

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Abstract

This invention relates to method for distributing pilot in code division multiple access system, which comprises the following steps: a) analyzing the potential network scale and extension demand, making sure the covering radius of the minimum area of compact district and non compact district; b) according to the actual complex degree, making sure the increment of the pilot and the pilot differential value of several small area in one base station, then dividing several pilot group; c) getting the pilot multiple distance; d) setting the grid of the pilot multiple distance area, distributing pilot group and realizing pilot multiple using between areas. Said method can plan the pilot of huge-size network in one time.

Description

technical field [0001] The invention relates to the field of CDMA cellular mobile communication, in particular to a pilot planning method in the network planning stage, in particular to a method for orderly allocating pilots in a code division multiple access system. Background technique [0002] With the rapid development of mobile communication technology, users have higher and higher requirements for network quality. How to effectively improve the communication quality of wireless networks is an important issue in the process of network construction. [0003] The network construction process involves many stages such as network planning, engineering construction, and network optimization. The network planning stage determines the entire network architecture and plays a decisive role in whether the final network meets the coverage and capacity requirements. In network planning, an important task in wireless parameter planning is PN (Pseudo random Number, pilot offset numbe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/707H04B7/26H04J13/00
CPCH04B2201/70701H04B1/707
Inventor 杨唯实胡谊吴赟李东川马跃赵勇攀孟庆涛王辉王亚平
Owner ZTE CORP
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