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Method for controlling power and transmission rate of a shared forward link data channel in a mobile communication system

A technology of data transmission rate and forward link channel, applied in the direction of link quality-based transmission modification, adjustment of transmission rate, power management, etc., can solve problems such as being unsuitable for fast power control

Inactive Publication Date: 2007-08-22
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the 1×EV-DV standard does not specify how to perform power control on the forward link data channel shared by mobile terminals
The power control of the shared forward link data channel is not suitable for fast power control satisfying the condition that all receivers must receive the same transmitted data in one-to-many communication for PTT service

Method used

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  • Method for controlling power and transmission rate of a shared forward link data channel in a mobile communication system
  • Method for controlling power and transmission rate of a shared forward link data channel in a mobile communication system
  • Method for controlling power and transmission rate of a shared forward link data channel in a mobile communication system

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Embodiment Construction

[0049] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Detailed descriptions of known functions and constructions will be omitted for clarity and conciseness.

[0050] Described below is an example method for controlling power of a shared forward link data channel of a multicast-based push-to-talk (PTT) service in a mobile communication system according to an embodiment of the present invention. In addition, it is assumed that, in order to control the power of a shared forward link data channel, all mobile terminals (MT) belonging to a group are connected to Base Transceiver Station (BTS).

[0051] 3 is an example illustrating a method for controlling the power of a shared forward link data channel between a BTS and a plurality of MTs belonging to a group within a cell 100 in a mobile communication system according to an embodiment of the present invention system.

[0052] The following des...

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Abstract

A method for controlling power of a shared forward link data channel for multicasting in a mobile communication system. The method includes the steps of initializing a virtual gain for each mobile terminal with which the shared forward link data channel is established, receiving power control request information from each mobile terminal to adjust the virtual gain of each mobile terminal, selecting a largest virtual gain among the adjusted virtual gains as a control power value of the shared forward link data channel, and regulating the power of the shared forward link data channel to the selected control power value.

Description

technical field [0001] The present invention generally relates to power control of a radio channel providing information from a base transceiver station to a mobile terminal in a mobile communication system. More particularly, the present invention relates to a method for controlling the power and transmission rate of a shared forward link data channel providing information from a base transceiver station to a mobile terminal, enabling efficient use of ) The push-to-talk (PTT) group call service in the mobile communication system is used for multicast radio resources. Background technique [0002] Mobile communication systems have evolved from systems based on voice-only services to systems that include both voice and data services. Mobile communication systems based on voice and data services are now being developed to provide faster and improved services. [0003] Demands for a mobile communication system capable of transmitting data at high speed include, for example, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W52/02H04W52/32
CPCH04W52/322H04L1/0002H04W52/327H04L1/0025
Inventor 李在赫赵诚权赵仁基尹承一孔栋建郑东朝田宰昊
Owner SAMSUNG ELECTRONICS CO LTD
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