A method for decreasing switching ratio of CDMA system
A technology of code division multiple access and soft handover, applied in the field of code division multiple access, can solve the problem of high soft handover ratio in CDMA system, achieve the effect of improving capacity and quality, and rationally allocating system resources
Inactive Publication Date: 2008-01-02
杜维晶
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[0011] The purpose of the present invention is to provide a method for reducing the soft handover ratio of the CDMA system, which solves the problem that the soft handover ratio of the CDMA system is too high under the premise of ensuring that the communication quality of the network does not decline, thereby improving the capacity and quality of the network
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[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0031] The present invention is a method for reducing the soft handover ratio of a CDMA system. As shown in Figure 1, the method is that the base station adopts an adaptive method, and the static and dynamic thresholds of the soft handover are respectively set at the base station under three different network conditions. It is used in combination with the mobile station side and the mobile station side. The specific steps are as follows:
[0032] Step 101, detecting the pilot frequency pollution of the network, the base station monitors the pilot signal strength of all mobile stations during the call;
[0033] Step 102, if the detection network has obvious dominant pilots, or the number of pilots with similar pilot strengths in the network does not...
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This invention discloses a method for reducing CDMA system soft switching proportion, which is characteristic of that in different network state the mobile station and base station respectively use different soft switching mode, when the network state is better, the mobile station uses static gate threshold upper reporting pilot frequency strength measuring information, the base station uses static gate threshold judging whether the soft switching in made, when there is pilot frequency pollution in network and mobile station is IS95A mobile station, the mobile station uses static gate threshold upper reporting pilot frequency strength message, base station uses dynamic gate threshold judging whether the soft switching in made, when there is pilot frequency pollution in network and mobile station is IS95B mobile station, the mobile station uses dynamic gate threshold upper reporting pilot frequency strength message, base station uses static gate threshold judging whether the soft switching in made. Said invention can effectively reduce CDMA system soft switching proportion in ensuring network communication quality and raises system capacity and quality.
Description
technical field [0001] The invention relates to code division multiple access (CDMA) technology, in particular to a method for reducing the soft handover ratio of the CDMA system. Background technique [0002] During the handover process of the mobile station, when the mobile station starts to contact the new base station, it does not immediately interrupt the communication with the original base station. When the signal is lower than the threshold value, the communication with the original base station is cut off. Because this processing process is first connected and then disconnected, this switching method is called soft switching. [0003] The mobile station decides whether to perform handover according to the strength of the pilot frequency of each base station, and the pilot frequency is a pilot signal, also called a pilot channel. The mobile station continuously scans the pilot frequency, and when the strength of the pilot frequency exceeds a given threshold, the mob...
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IPC IPC(8): H04Q7/38H04J13/02H04W36/18H04W36/38
CPCH04W36/18H04W36/38
Inventor 崔亚蕾
Owner 杜维晶