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Synchronous control method for forward link transmitting power in soft switching process

A technology of transmit power and forward link, which is used in transmission control/equalization, power management, radio/induction link selection and arrangement, etc. It can solve the complex process of detecting and calculating Eb/Nt and affect the processing efficiency of system operation, etc. problems, to achieve the effect of improving operation processing efficiency, improving real-time performance, and simplifying the calculation process

Inactive Publication Date: 2008-06-04
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0030] In this method, because the detection period of Eb / Nt on the reverse link is at least 1 frame (1*20ms=20ms), the BSC is in the process of synchronizing the power of each base station, although the real-time performance of its synchronization is enhanced, but the reverse The process of detecting and calculating Eb / Nt on the link is relatively complicated, which still affects the operation and processing efficiency of the system

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  • Synchronous control method for forward link transmitting power in soft switching process
  • Synchronous control method for forward link transmitting power in soft switching process
  • Synchronous control method for forward link transmitting power in soft switching process

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Embodiment Construction

[0064] figure 1 Among them, the base station controller 109 is connected to the public switching network 110, and the base stations 105 and 106 are respectively connected to the base station controller 109. , 103 and 102, 104 communicate with base station 1 and base station 2. In the soft handover process, the power control relationship between the front and reverse links, as pointed out in some paragraphs of the background technology, in the CDMA2000-1X system In RC3~RC5, fast forward power control is introduced. The forward transmit power of each base station participating in the soft handover can be independent of each other, that is, they can be controlled by their own fast forward power control. During the soft handover process Among them, if the base station does not have special targeted processing, the performance of the system in the soft handover process will be greatly reduced. For this reason, two methods that the present invention proposes carry out targeted proc...

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Abstract

This invention relates to a synchronous control method for forward powre in the soft switching process including collecting the present forward link emitting power TX(i) and backward link receiving quality to find out the corresponding optimum base station BTS(x) to record and store TX(x) reported by B TS(x) and mark that the said station is the strong backward link station and others are the weak ones; to send the strong and weak backward link markers, TX(x), and the number of base stations taking part in the present soft switch to each base station to decide if it's the weak link on the markers of the base station controllers, if so, it's necessary to compare the differential value of TX(i) and TX(x), adjust each power control parameter and repeat the above mentioned steps.

Description

technical field [0001] The invention relates to a power control method of a wireless communication system, in particular to a more optimal synchronous control technology of forward link transmission power in a code division multiple access communication system (CDMA system) in a soft handover process. Background technique [0002] The actual application of the CDMA system shows that the capacity of the system is not only determined by the reverse capacity, but also limited by the capacity of the forward link, which puts forward higher requirements for the power control of the forward link. The purpose of forward link power control is to allocate the power of the forward traffic channel reasonably, and minimize the interference to other users in the cell and users in adjacent cells on the premise of ensuring the communication quality, that is, to make the power of the forward channel The transmit power should be as low as possible while satisfying the minimum signal-to-noise ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J13/02H04Q7/20H04B7/005H04W52/04
Inventor 彭蔚中王跃李平乔嘉
Owner ZTE CORP