Method for selecting access frequency point N frequency-point domain in TD-SCDMA system

A TD-SCDMA, frequency point technology, applied in the direction of selection device, radio/induction link selection arrangement, transmission control/equalization, etc., can solve the problems of limited high-speed service support, increased access failure probability, etc. The effect of balancing the load, reducing the situation of the same frequency switching, and improving the switching success rate

Inactive Publication Date: 2007-11-21
ZTE CORP
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Problems solved by technology

[0009] The main purpose of the present invention is to provide a method for selecting an access frequency point for an N-frequency point cell in a TD-SCDMA system, which is used to overcome the limited high-speed service support and access failure caused by the limitations and defects of the prior art issues such as increased probability

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  • Method for selecting access frequency point N frequency-point domain in TD-SCDMA system
  • Method for selecting access frequency point N frequency-point domain in TD-SCDMA system
  • Method for selecting access frequency point N frequency-point domain in TD-SCDMA system

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Embodiment Construction

[0026] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0027] With reference to Fig. 1, according to the access frequency point selection method of TD-SCDMA system N frequency point sub-district of the present invention comprises the following steps:

[0028] S202, judging whether there is a frequency point in the cell with a frequency point load lower than a preset value, if it exists, execute S204, if not, execute S206;

[0029] S204. Prioritize allocating the user to the frequency point with the least remaining code channel resources among all frequency points whose frequency point load is lower than a preset value;

[0030] S206. Prioritize allocating users to frequency points with the least power or interference.

[0031] The technical problem to be solved by the present invention is to provide a frequency point selection algorithm suitable for N-frequency point cells in a Time Division Synchronous Code Divisi...

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Abstract

The method comprises: deciding if some frequency points whose load is lower than a preset frequency point exist in the cell; if yes, then allocates in priority the users to the frequency point in said frequency points with least residue code resources; if not, allocating user to the frequency point with least power or interference. When all frequency points are evenly distributed, allocating the low rate user to the frequency point with most unbalanced level of time slot, and allocating the high rate user to the frequency point with least unbalanced level of time slot; when the time slot load of each frequency point is evenly distributed, the low rate user is allocated to the frequency point with highest code channel fragments level, and the high rate user is allocated to the frequency point with least code channel fragment level.

Description

technical field [0001] The invention relates to a mobile terminal access technology of a wireless communication system, in particular to a method for selecting an access frequency point of an N-frequency point cell in a TD-SCDMA system. Background technique [0002] In the TD-SCDMA system, the theoretical maximum capacity of a single cell is 23 CS12.2k voice users. In hotspot areas with relatively large traffic, it is necessary to deploy multiple base stations to meet the capacity requirements, and it is necessary to introduce multi-carrier technology. Traditional The current multi-carrier technology is composed of multiple different-frequency cells with the same coverage. Since the TD-SCDMA system is a time-division system, if the traditional multi-carrier technology is used, it will cause serious interference on the main common control channel in time slot zero. [0003] In order to solve this problem, Datang Mobile and Siemens proposed the technology of using N frequency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/005H04W28/08H04W72/04
Inventor 周捷
Owner ZTE CORP
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