Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Switching zone customer reverse rate controlling method and system

A rate control and handover area technology, applied in the field of mobile communication, can solve the problems of unreasonable setting threshold of forward link pilot strength, interference can not be effectively controlled, can not be effectively eliminated, etc., to avoid stability degradation and facilitate popularization and application , the effect of easy operation

Inactive Publication Date: 2009-05-06
ZTE CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Switching zone customer reverse rate controlling method and system
  • Switching zone customer reverse rate controlling method and system
  • Switching zone customer reverse rate controlling method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] Taking the CDMA2000 1X EVDO system as an example below, the application of the technical solution of the present invention in the DO Rev A system is specifically described:

[0054] figure 2 Generate a schematic diagram for the RPC (reverse power control) bit, as shown in the figure, perform packet decoding / demodulation on the reverse signal, and then perform inner loop power control to obtain the RPC bit.

[0055] image 3 It is a schematic diagram of the generation of slotQRABn, as shown in the figure, the RAB is first detected by the RA bit, and then processed by a filter with a filter constant of QRABFilterTC to generate SoftQRAB, and then SoftQRAB is converted into SlotQRABm by the Hard-limited method, which is greater than 0 If it is less than 0, it is taken as -1. SlotQRABm obtains slotQRABn through subframe sampling...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/22H04W36/18H04W52/12
Inventor 孔祥明柳亚俊谢忠时
Owner ZTE CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products