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Reinforced uplink power control method

A technology for enhancing uplink and power control, applied in the field of wireless communication, can solve problems such as limited link adaptation capability, and achieve the effects of enhancing adaptation capability, improving transmission efficiency, and reducing uplink interference

Active Publication Date: 2009-02-04
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0023] The technical problem to be solved by the present invention is to provide an enhanced uplink power control method to solve the problem that the existing enhanced uplink power control method has limited adaptability to the link

Method used

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  • Reinforced uplink power control method

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Embodiment Construction

[0047] The current 3GPP TD-SCDMA system is a single-carrier system, and scheduling and non-scheduling resources are concentrated on the same carrier. In order to simplify the RRM (Radio Resource Management) algorithm, the closed-loop power control of the E-PUCH channel by Node B does not distinguish specific uplink time slots. When the E-PUCH of a UE is allocated on multiple time slots, multiple The power control is performed after averaging the interference of time slots. In this sense, a UE with scheduling service and non-scheduling service can maintain a P e-base value. In this way, even if there is a period of pause in scheduling resources, P e-base It can be continuously maintained during unscheduled transmission, and when the UE regains scheduling resources, it can use the latest P e-base The transmission of the E-PUCH channel can better adapt to changes in the wireless environment than the original solution.

[0048] In order to further improve the throughput of the...

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Abstract

The invention provides a method to amplify the uplink power control. A user terminal maintains a closed loop control value, that is, a Pe-base value, to the dispatching network and non-dispatching network using the same carrier resource to transmit when amplifying an uplink access service. The Pe-base value is controlled by the closed loop control command in process of the dispatching network transmission and non-dispatching network transmission on the carrier. The method for amplifying the uplink power control maintains the same closed loop control value Pe-base to the dispatching network and non-dispatching network on the same carrier, greatly improves the adaptability of the dispatching network transmission to the link, effectively reduces the uplink interference, and develops the transmission efficiency.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a power control method for enhancing uplink in a time division synchronous code division multiple access system. Background technique [0002] 3GPP (Third Generation Partnership Project) has completed the standardization of TD-SCDMA (Time Division Synchronous Code Division Multiple Access) enhanced uplink access system. The enhanced uplink access system is generally called HSUPA (High Speed ​​Uplink Packet Access, High Speed ​​Uplink Packet Access), which aims to improve the efficiency of the uplink through advanced technology to effectively support web browsing, video, multimedia information and other IP-based business. [0003] HSUPA services are divided into scheduling services and non-scheduling services according to different scheduling methods. The resources of non-scheduling services are allocated by SRNC (Serving Radio Network Controller, Serving Radio Network Contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/005
CPCH04W52/146H04W52/44H04W52/10H04W52/08
Inventor 陈慧张银成刘虎
Owner ZTE CORP
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