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Method and apparatus for flexible pilot pattern

A mode and transmission mode technology, applied in the direction of multi-frequency code system, etc., can solve the problem of inefficient SFN transmission

Active Publication Date: 2013-03-13
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, SFN transmission may not be efficient if the entire portion of the bandwidth is used on the downlink when other non-data information also needs to be transmitted

Method used

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  • Method and apparatus for flexible pilot pattern
  • Method and apparatus for flexible pilot pattern
  • Method and apparatus for flexible pilot pattern

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Embodiment Construction

[0029] Various aspects are described below with reference to the drawings, like reference numerals being used to indicate like elements throughout. The following description is illustrative, and numerous specific details are set forth to provide a thorough understanding of one or more aspects. It is evident that these aspects may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more aspects.

[0030] Additionally, various aspects of the disclosure are described below. Obviously, the teachings herein can be implemented in a wide variety of forms, and any specific structure and / or function disclosed herein is merely representative. Based on the teachings herein one skilled in the art will appreciate that an aspect disclosed herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. F...

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Abstract

In accordance an aspect, a method for a wireless communication system, determining a location in time of a sub-frame when SFN transmission for data will occur, determining a first transmission pattern and a second transmission pattern for reference signals, wherein the transmission patterns indicate the symbols and tones of a sub-frame to use for reference signals, selecting for use, between the first transmission pattern and second transmission pattern for reference signals depending on whether SFN data will be transmitted in the sub-frame, and broadcasting information about the selected transmission pattern prior to use thereof.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 60 / 839,357, filed August 21, 2006, entitled "METHOD AND APPARATUS FOR FLEXIBLE PILOT PATTERN," which is incorporated herein by reference in its entirety. technical field [0003] The following description relates generally to wireless communications, and more specifically to providing a mechanism with flexible pilot patterns in Orthogonal Frequency Division Multiplexing (OFDM) systems. Background technique [0004] Wireless communication systems are widely configured to provide various types of communication content, such as voice, data, and so on. A typical wireless communication system may be a multiple access system, which can support communication with multiple users by sharing available system resources (eg, bandwidth, transmit power, etc.). Examples of such multiple access systems may include Code Division Multiple Access (CDMA) systems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
Inventor D·P·马拉蒂
Owner QUALCOMM INC