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Precoding for segment sensitive scheduling in wireless communication systems

A technology of wireless communication equipment and precoding information, which is applied in the field of precoding and can solve the problems of reducing data rate and increasing overhead

Active Publication Date: 2009-01-14
QUALCOMM INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This reduces the data rate and increases the overhead required

Method used

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  • Precoding for segment sensitive scheduling in wireless communication systems
  • Precoding for segment sensitive scheduling in wireless communication systems
  • Precoding for segment sensitive scheduling in wireless communication systems

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Embodiment Construction

[0021] Various aspects are now described with reference to the drawings, in which the same reference numbers are always used to refer to the same elements. In the following description, a large number of specific details are stated for the purpose of explanation in order to achieve a thorough understanding of one or more aspects. However, it is obvious that this aspect(s) can be implemented without these specific details. In other instances, for the convenience of describing one or more aspects, well-known structures and devices are shown in the form of block diagrams.

[0022] The terms "component", "system" and similar terms used in this application refer to computer-related entities, which can be hardware, a combination of hardware and software, software, or software in execution. For example, a component may be (but is not limited to) a processor, a process running on the processor, an object, an executable file, an execution thread, a program, and / or a computer. One or more c...

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Abstract

Techniques to enhance the performance in a wireless communication system using segments called subbands and using precoding are shown. According to one aspect, the bandwidth for transmission to an access terminal is constrained to a preferred bandwidth which is less than the bandwidth available for transmission to an access terminal and precoding information related to the subcarriers within the constrained bandwidth is provided to a transmitter. The precoding information related to the subcarriers within a constrained bandwidth provides feedback about the forward link channel properties relative to different subbands and may be fed back on a channel associated with the bandwidth.

Description

[0001] Claim priority under 35U.S.C §119 [0002] This patent application claims priority over the provisional application No. 60 / 731,558 filed on October 27, 2005 and titled "SEGMENT SENSITIVE SCHEDULING IN WIRELESS COMMUNICATION SYSTEM". The provisional application is assigned to the assignee of this application and is expressly incorporated herein by reference. Technical field [0003] The present description relates generally to wireless communication, and more specifically to precoding in wireless communication systems. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication, such as voice and data. These systems may be multiple-access systems capable of supporting communication with multiple access terminals by sharing available system resources (such as bandwidth and transmission power). Examples of such multiple access systems include: code division multiple access (CDMA) systems, time division multiple a...

Claims

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Application Information

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IPC IPC(8): H04L5/02H04L27/26H04L1/06H04L1/00H04L25/02H04B7/06H04B1/713
CPCH04L1/0016H04L27/2608H04L1/0675H04L25/0206H04B7/0456H04L27/2602H04L5/023H04L1/0026H04L5/0044Y02D30/70H04L25/0204H04L25/03898
Inventor 达纳恩杰伊·阿肖克·戈尔赫曼斯·桑帕斯王际兵塔梅尔·卡杜斯格温德琳·D·巴里亚克
Owner QUALCOMM INC
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