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Neighboring region optimization method and base station

An optimization method and adjacent cell technology, applied in the field of communication, can solve problems such as poor accuracy of adjacent cell optimization methods

Active Publication Date: 2015-08-26
中国移动通信集团广西有限公司
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Problems solved by technology

[0013] Embodiments of the present invention provide a neighbor cell optimization method and a base station to solve the problem that the accuracy of the existing neighbor cell optimization methods is relatively poor

Method used

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  • Neighboring region optimization method and base station
  • Neighboring region optimization method and base station
  • Neighboring region optimization method and base station

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Embodiment Construction

[0049] In view of the problem that the accuracy of the existing neighboring cell optimization methods is relatively poor, the embodiment of the present invention provides a neighboring cell optimization method, which is based on the joint detection technology, which is a kind of multi-user detection technology. In the CDMA system, the signals of multiple users are aliased in the time domain and the frequency domain. When receiving, a certain signal separation method must be used in the digital domain to separate the signals of each user. The principle of joint detection is as figure 1 Shown:

[0050] Suppose d is the transmitted data symbol sequence, e is the received data sequence, n is the noise, A is the matrix related to the spreading code c and the channel impulse response h, the discrete model of a CDMA system can be expressed by the following formula: e =A·d+n, as long as the receiver knows A (spreading code c and channel impulse response h), the symbol sequence can be e...

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Abstract

The invention discloses a neighboring region optimization method and a neighboring region optimization base station. The neighboring region optimization method comprises the steps of: acquiring a first set number of regions from a predefined region set participating in joint detection in sequence; carrying out joint detection on the first set number of regions acquired each time and a second set number of neighboring regions of the current region respectively to obtain average signal level of each region and each corresponding neighboring region in a neighboring region set; and optimizing the neighboring region of the current region according to the average signal level of each region and each corresponding neighboring region in the neighboring region set. The scheme provided by the invention can effectively carry out neighboring region optimization on the current region.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a neighboring cell optimization method and a base station. Background technique [0002] Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) wireless network consists of different cells to form cellular coverage. Another cell needs to be defined as a neighbor relationship at the base station; if the necessary neighbor relationship is lacking, the cell handover cannot be completed and the service will be interrupted. [0003] Handover according to the neighbor relationship requires three steps: measurement, judgment, and execution. Limited by the processing capabilities of the base station and the user terminal, the measurement needs to be completed within a limited time, and the measurement must be sufficient and accurate. Therefore, the neighbor relationship is not The more you define, the better. Only by defining a limited number of neighboring cells with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02
CPCH04W24/02
Inventor 黄涛苏华强陈海峰
Owner 中国移动通信集团广西有限公司
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