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Call premission control method for multi-speed CDMA mobile communication system

A mobile communication system, call admission control technology, applied in multiplex communication, code division multiplexing system, communication between multiple stations, etc., can solve the problem of not considering the increment of allocated power, etc.

Inactive Publication Date: 2004-04-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason why it is called a simple prediction is that its method only considers the calculation of the necessary transmit power of the receiving user based on the current parameters, and does not consider the increase in the power allocated to other users of the station due to the increase in the transmit power of the user after receiving , and the increase caused by the synchronous increase of the surrounding adjacent base stations due to the increase of the transmit power of the base station

Method used

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  • Call premission control method for multi-speed CDMA mobile communication system
  • Call premission control method for multi-speed CDMA mobile communication system
  • Call premission control method for multi-speed CDMA mobile communication system

Examples

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Embodiment Construction

[0038] refer to Figure 1 to Figure 4 , the embodiment of the call admission control method for forward load prediction in the CDMA mobile communication system according to the present invention can be described more fully. In an embodiment of the present invention, the CDMA mobile communication system may have such figure 1 A schematic diagram of the three sectors is shown. figure 1 contains sixteen cells, each cell has three sectors, and the base stations are distributed in the form of vertices, such as base stations 1 to 16.

[0039] Meanwhile, a CDMA mobile communication system may roughly have the following figure 2 The mode configuration shown. It includes a plurality of base stations 21 and a plurality of mobile stations 22 communicating with the base stations using a plurality of spreading codes to modulate signals. Assume that each base station 21 uses a frequency bandwidth shared by a plurality of users for each uplink (transmission from the mobile station 22 to...

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Abstract

The invention relates to the method for controlling the permission for forward calling in the CDMA cellular mobile communication system with multiple services and multiple rates. The admittance standards are setup for each base station. Based on the prediction of the forward load, the forward load of the subzone in the mobile communication system is indicated by the ratio between the total transmitting power at the present base station and the maximum transmitting power at the up base station. Based on the information reported from the mobile station and the information of the present base station, the upper and lower limits of the increment of the transmitting power at the base station are predicted with the mobile station being connected into. In this way, the admittance of calling forward is controlled, so that the resources of the forward system are utilzied effectively.

Description

technical field [0001] The invention relates to a forward call permission control method in a CDMA cellular mobile communication system, in particular to a forward call permission control method in a multi-service and multi-rate CDMA cellular mobile communication system. Background technique [0002] In general, in a mobile communication system, in order to limit available radio resources, there is a limit on the capacity of subscribers that can be accommodated in the system. Therefore, when a communication request exceeding the capacity occurs, service is refused, and a so-called call loss occurs. [0003] In FDMA (Frequency Division Multiple Access) and TDMA (Time Division Multiple Access) systems in which conventional radio channels are fixedly arranged, the number of mobile stations that can simultaneously communicate in the radio base station is limited by the number of radio channels allocated in the radio base station, Call loss occurs when a communication request ex...

Claims

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Application Information

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IPC IPC(8): H04W48/02H04B7/26H04W48/06
Inventor 汪勇刚彭芳吴勇万蓉陈巍
Owner HUAWEI TECH CO LTD
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