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Method, system and base station for implementing power control

A technology of transmit power and rate, applied in the direction of transmission control/equalization, energy consumption reduction, advanced technology, etc., can solve problems such as the inability to improve system performance, reduce interference, improve short-term performance, and meet short-term performance Effect

Inactive Publication Date: 2008-08-20
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Judging from the existing power control schemes, group scheduling or power allocation technol

Method used

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  • Method, system and base station for implementing power control
  • Method, system and base station for implementing power control
  • Method, system and base station for implementing power control

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Embodiment Construction

[0029] In order to make the technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and preferred embodiments.

[0030] In order to find the user with the highest sending priority, the average sending power of the system is minimized on the premise that the average data transmission rate and delay of each user can meet the requirements. The present invention adopts the mathematical optimization model shown in formula (1)~(4):

[0031] min Q , p Σ k = 1 K E ( P ( g → ) · 1 { Q ...

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Abstract

The present invention discloses a method, a system and a base station for realizing the power control basing on the combined grouping scheduling and power distributing of the Worldwide Interoperability for Microwave Access (WiMAX) system. The plan comprises the following procedures: obtaining a speed dispatching priority satisfying the average transmission rate request of each user and the time delay dispatching priority satisfying the waiting time of the data package by the base station according to the channel gain measured by each subscriber board; obtaining the transmitting priority according to the obtained speed dispatching priority and time delay dispatching priority, scheduling the subscriber according to the transmitting priority level and taking the transmitting power corresponding to the least speed dispatching priority as the transmitting power of the scheduled subscriber. The invention combines the grouping scheduling with power distributing under the precondition that the average data transmitting speed and time delay request of each business flow are guaranteed to minimize the transmitting power of the base station in the statistical average meaning and reduce the interference to other subscriber and the subdistrict; meanwhile, the short-term property is considered while the long-term performance of the service is guaranteed. The invention has higher construction value.

Description

technical field [0001] The present invention relates to a wireless communication system power control technology, in particular to a technology for realizing power control based on Joint Scheduling and Power Allocation (JSPA, Joint Scheduling and Power Allocation) of the Worldwide Interoperability for Microwave Access (WiMAX, Worldwide Interoperability for Microwave Access) system Methods, systems and base stations. Background technique [0002] As the content of exchanged information becomes more and more abundant, people have higher and higher requirements for the quality of exchanged information. The original voice-based mobile communication method can no longer meet people's requirements. Therefore, the development of mobile communication systems is inevitable. On the basis of ensuring voice services, it provides multimedia services such as transmitting pictures, files, sending and receiving emails, surfing the Internet, and on-demand movies, as well as services that mee...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04L12/28H04L1/18H04Q7/30
CPCY02D30/70
Inventor 赵新胜周雄弟朱静宁吴和兵王吉滨
Owner HUAWEI TECH CO LTD