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System and method for transmitting uplink control information in an ofdma communication system

A link control information, orthogonal frequency division multiple access technology, applied in the field of uplink control information, can solve problems such as inefficiency

Inactive Publication Date: 2007-05-30
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, existing schemes are inefficient because MSs need two fast feedback channels in order to perform fast cell handover

Method used

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  • System and method for transmitting uplink control information in an ofdma communication system
  • System and method for transmitting uplink control information in an ofdma communication system
  • System and method for transmitting uplink control information in an ofdma communication system

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Embodiment Construction

[0034] Several preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, detailed descriptions of well-known functions and configurations incorporated herein are omitted for brevity.

[0035] The present invention proposes a scheme for transmitting various uplink control information in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system. Furthermore, the present invention increases the number of codewords available for the fast feedback channel for transmitting various uplink control information, thereby efficiently using frequency and time resources.

[0036] The present invention provides a method for identifying the codewords used to transmit channel quality information (CQI), the codewords used to transmit the best base station (BS) / sector information, by increasing the number of codewords used for a fast feedback channel , and a codeword used for tran...

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Abstract

A method for transmitting uplink control information in a communication system using an orthogonal frequency division multiple access (OFDMA) scheme is provided. A mobile station (MS) selects a target anchor base station (BS) with which the MS desires to communicate through a fast feedback channel, and transmits a codeword allocated to the selected target anchor BS to a current anchor BS. Upon receiving the codeword, transmitting to the MS, by the anchor BS, fast feedback channel allocation information for the selected BS corresponding to the received codeword. The MS switches to a new anchor BS corresponding to the fast feedback channel allocation information.

Description

technical field [0001] The present invention generally relates to a system and method for transmitting control information in a mobile communication system, and in particular to an uplink transmission for performing fast cell handover in a communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. Systems and methods for channel control information. Background technique [0002] Mobile communication systems originally developed to provide voice services are evolving into advanced systems capable of providing various multimedia services. After the first generation (1G) analog system, the second generation (2G) digital system, and the third generation (3G) IMT-2000 system supporting high-speed multimedia services, mobile communication systems are evolving to the fourth generation supporting high-speed multimedia services (4G) mobile communication system. In a 4G mobile communication system, a user can use a terminal, such as a mobile stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W36/08
CPCH04W36/08H04W72/042H04W36/30Y02D30/70H04W72/23H04W36/0072H04W36/302H04B7/0413H04W36/0077
Inventor 徐熙尚孟胜柱边名广田宰昊尹淳暎金正元周判谕赵在源
Owner SAMSUNG ELECTRONICS CO LTD
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