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Power control information transmitting method and system

A technology of power control information and transmission method, which is applied in the technical field of transmission of power control information, can solve the problem of inability to distinguish the power control information of different users with different PN sequences, and achieves the effect of rational utilization

Inactive Publication Date: 2012-04-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Since the AIE system adopts CDMA technology in the uplink, it still needs to control the transmission power of the uplink CDMA signal of the mobile terminal, and because the downlink in this system is no longer CDMA, it is impossible to use different PN sequences to distinguish the power control of different users information
The original power control information transmission method is no longer suitable for this hybrid system that uses different technologies for uplink and downlink

Method used

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  • Power control information transmitting method and system
  • Power control information transmitting method and system
  • Power control information transmitting method and system

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Embodiment Construction

[0073] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0074] For a hybrid wireless communication system that uses OFDMA technology in the downlink direction and CDMA technology in the uplink direction, such as the AIE system, and performs power control on mobile terminals that have accessed uplink CDMA services in this type of system, the present invention considers each connected The mobile terminal entering the uplink CDMA service sets the mobile terminal to be different from other described mobile terminals, and sends the described identification to the mobile terminal; when the mobile terminal receives the power control information sent by the base station, it can according to the The identifier of the mobile terminal finds a piece of power control information belonging to the mobile term...

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Abstract

The present invention discloses a power control information transmission method, which mainly comprises steps below: A. Configuring marks for each mobile terminal featuring successful access to uplink CDMA services to make the mobile terminal different from other mobile terminals and transmitting the mark to this mobile terminal; B. Distributing transmission resources to transmit power control information of the mobile terminal; C. Transmitting the power control information to the mobile terminal through the transmission source; D. The mobile terminal acquires its power control information from the transmission resource carrying the power control information according to the mark as above. In addition, the present invention discloses a power control information transmission system based on the method mentioned above. The present invention is suitable for mixed wireless communication systems with downlink OFDMA technology and uplink CDMA technology.

Description

technical field [0001] The invention relates to a power control mechanism in a wireless communication system, in particular to a power control information transmission technology suitable for a hybrid wireless communication system in which the downlink adopts OFDMA technology and the uplink adopts CDMA technology. Background technique [0002] The current draft of the 3GPP2 AIE (Air Interface Evolution) standard organization takes into account the advantages of OFDMA (Orthogonal Frequency Division Multiplexing), and adopts a hybrid mobile communication technology of downlink OFDMA / uplink CDMA. Among them, OFDMA technology is a multi-carrier transmission technology, which can divide the frequency spectrum into many sub-carriers, and realize OFDM multiple access by allocating different sub-carriers to different users. [0003] For a CDMA system using CDMA (Code Division Multiple Access) technology for both uplink and downlink, since all mobile terminals accessing CDMA uplink s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/54H04W72/04
Inventor 党淑君邓天乐赵盟相里瑜
Owner HUAWEI TECH CO LTD