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Method and controller for balancing load among cells of multiband time division-synchronous code division multiple access (TD-SCDMA) system

A TD-SCDMA and load balancing technology, applied in the field of code division multiple access system, can solve the problem of not comprehensively considering the frequency band, HCS, load, etc.

Inactive Publication Date: 2011-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a method and system for load balancing between cells of a multi-band TD-SCDMA system, so as to solve the problem that only load or HCS is considered in the prior art, and frequency band, HCS, and load are not considered comprehensively. other factors

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  • Method and controller for balancing load among cells of multiband time division-synchronous code division multiple access (TD-SCDMA) system
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  • Method and controller for balancing load among cells of multiband time division-synchronous code division multiple access (TD-SCDMA) system

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Embodiment 2

[0100] Embodiment 2 describes the inter-system load balancing process, so that after the failure of adjusting the intra-system load balancing process, the inter-system load balancing can also be used to reduce the congestion of the 3G cell and improve user experience.

[0101] The present invention carries out load balancing control by comprehensively considering three factors for multiple frequency bands; and in the inter-system load balancing process, the Iur-g interface is introduced to obtain the load of inter-system adjacent cells, and the inter-system adjacent cell with the lightest load is selected as the balance The target cell, so as to select a cell with the largest total priority weight value for the terminal considering multiple factors such as frequency band, cell hierarchy structure, and cell load, so as to achieve the service in different frequency bands and different HCS layers. The purpose of load sharing between different cells is to improve the stability and ...

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Abstract

The invention discloses a method and controller for balancing load among cells of a multiband time division-synchronous code division multiple access (TD-SCDMA) system. The method comprises the following steps: acquiring a balanced candidate cell list according to an intrasystem cell adjacent to a cell in which a terminal is currently stayed; determining the actual frequency band priority level, hierarchical cell structure (HCS) priority level and load priority level of each cell; acquiring the total priority level weight of each cell; sequencing all the cells in the intrasystem balanced candidate cell list; and enabling each cell to carry out an acceptance operation. The controller comprises an intrasystem balanced candidate cell list acquisition module, a priority level determination module connected with the intrasystem balanced candidate cell list acquisition module, a total priority level weight determination module connected with the priority level determination module, a cell sequencing module connected with the total priority level weight determination module and an acceptance module connected with the cell sequencing module, thus the invention ensures that the purpose of balancing load among cells which are in different frequency bands and have different HCS layers is realized.

Description

technical field [0001] The invention relates to a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) system in the field of wireless communication, in particular to a load balancing method and a controller among cells after introducing multiple frequency bands into TD-SCDMA. Background technique [0002] With the continuous expansion of the network scale and the continuous increase of the number of time-division (TD) users, the original cell coverage based on the B-band can no longer meet the capacity requirements. According to the plan, there are three frequency bands to be allocated to the TDD (Time Division Digital Duplex) system in China, including: A frequency band 1880-1920MHz, B frequency band 2010-2025MHz, and C frequency band 2300-2400MHz. [0003] Among them, the B-band is currently being used, with a total bandwidth of 15MHz, that is, 9 carriers; outdoor macro stations mainly use 3 carriers, and micro cells and indoor stations use the remaining 6 c...

Claims

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Application Information

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IPC IPC(8): H04W28/08H04W28/24H04W36/22
Inventor 陈林
Owner ZTE CORP
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