Switching zone customer reverse rate controlling method and system

Abstract

The present invention discloses a method and a system for controlling reverse rate of switching area subscriber. A higher reverse rate of subscriber can be obtained and the system is more stable compared with a plan provided by a C.S0024-A air interface standard protocol. The main plan comprises the following procedures: a procedure A, setting QRAB to 1 if at least one carrier-fan with heavy load of reverse chain circuit and one random condition is satisfied, and otherwise setting to -1; the conditions comprises the following:1. the carrier-fan with heavy load of reverse chain comprises a frontward chain circuit service carrier-fan of access terminal; 2. the carrier-fan with heavy load of reverse chain comprises carrier-fan with pilot frequency intensity higher than preset threshold and reverse power control bit which is not 0; and 3. the reverse power control bits of all carrier-fan in the access terminal aggregation are all 0; and a procedure B, controlling the subscriber reverse rate according to QRAB value, reducing the reverse rate if QRAB is 1, and increasing the reverse rate if QRAB is -1.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a method and a system for controlling the reverse rate of users in a D0 system switching area. Background technique [0002] The third-generation mobile communication (3G) technology is the main direction of mobile communication technology development at present. The main defect of the 2G system is that it cannot provide high-speed data communication services, and this is where the advantages of the third-generation mobile communication (3G) technology lie. [0003] The current CDMA2000 D0 Rev A system uses the T2P (data channel to pilot channel power ratio) rate control algorithm to control the user's reverse rate. This algorithm consists of a centralized resource allocation algorithm on the network side and a distributed rate selection algorithm on the access terminal side. It consists of two parts. On the network side, the access network compares the ...

AI Technical Summary

Problems solved by technology

If the threshold PilotStrengthQRABThresholdDRCLock is set too low, method 2 is similar to method 1, which cannot effectively eliminate the influence of the carrier fan added to the active set due to the low setting of the switching threshold T_ADD on the QRABn value; if the threshold PilotStrengthQRABThresholdDRCLock is set too high, the system's QRABn value It will depend on the QRABn,s of the carrier sector whose pilot strength is greater than this threshold, and the reverse rate of the access terminal cannot effectively control the interference of other carrier sectors in the active set, which will cause system instability

[0013] 2. The frequency band difference of the forward and reverse links exceeds the relevant bandwidth of the channel, and there is no correlation between the forward and reverse links. Therefore, it is unreasonable to set the threshold based on the pilot strength of the forward link.

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