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Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system

A periodic, block coding technology, applied in transmission systems, digital transmission systems, radio transmission systems, etc., can solve problems such as reducing communication performance

Inactive Publication Date: 2006-05-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because, the signal sent from the neighboring cell to the cell of the BS will act as a factor that can degrade the communication performance of the cell of the MS

Method used

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  • Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system
  • Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system
  • Transmission apparatus and method for a base station using block coding and cyclic delay diversity techniques in an OFDM mobile communication system

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Embodiment Construction

[0021] The description provides illustrations in conjunction with the accompanying drawings to assist in a comprehensive understanding of various embodiments of the present disclosure. Accordingly, those of ordinary skill in the art will appreciate that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention according to the claims. Well-known functions and constructions are omitted for clarity and conciseness. It is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limitations of the invention.

[0022] Certain embodiments of the present invention propose a transmission device and method using a base station (BS) for providing more suitable transmission variation in a mobile communication system to ensure Orthogonal Frequency Division Multiplexing / High Speed ​​Downlink Path (OFDM / HSDPA)

[0023] A transm...

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Abstract

The present invention provides an apparatus and method for efficient guaranteed transmission variation for the same broadcast signal transmitted from at least two base stations (BS). A radio network controller (RNC) considers a radio channel state of a mobile station (MS), and transmits information to a plurality of BSs located in a cell configured by three sectors for performing mutation. Each BS is equipped with at least two transmit antennas. According to this information, the BS in the cell performs space-time block coding on the data to be transmitted, applies different periodic delays to the data, and transmits the data to the MS through at least two transmit antennas.

Description

technical field [0001] The present invention generally relates to supporting transmit diversity in Orthogonal Frequency Division Multiplexing / Code Division Multiple Access (OFDM / CDMA) communication systems. More particularly, the present invention relates to an apparatus and method for efficiently supporting transmission variation for the same broadcast signal from a base station (BS) having at least two antennas. Background technique [0002] With the increase of mobile communication service content, users' requirements for multimedia, such as audio, video, text, digital broadcasting, etc., and voice services are growing rapidly. In order to meet these requirements, a lot of research and development is going on regarding an efficient method of transmitting high-speed data on Orthogonal Frequency Division Multiplexing (OFDM). The OFDM scheme is considered to be the fourth generation (4G) mobile communication, in other words, the next generation mobile communication technolo...

Claims

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Application Information

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IPC IPC(8): H04B7/06H04B7/02H04J11/00H04L27/26H04W16/28H04W92/12
CPCH04B7/022H04B7/0667H04B7/0671H04B7/0673H04L1/0606H04L1/0643H04L1/0668H04L1/0687H04L25/0222H04L27/2626H04B7/22H04L27/2628
Inventor 吴玄锡金相晓金成洙金潣龟
Owner SAMSUNG ELECTRONICS CO LTD
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