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Determination of receive data values

A technology for receiving data and data values, applied in digital transmission systems, synchronization/start-stop systems, baseband systems, etc., capable of solving system-wide time division and/or frequency division multiplexing, system conflicts, low complexity, etc. question

Inactive Publication Date: 2011-06-22
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, other types of communication systems may not use system-wide time division and / or frequency division multiplexing
For example, some systems require low complexity, low cost and low power devices
In such cases, it may not be desirable to support the complexities associated with system-wide timing synchronization that can be used in time-division multiplexing schemes
Additionally, in systems such as broadband communication systems, it may be impractical to limit the spectrum over which a device transmits
Therefore, these types of systems may experience conflicts from time to time

Method used

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Embodiment Construction

[0027] Various aspects of the invention are described below. It should be appreciated that the teachings herein can be embodied in a variety of forms and that any specific structure, function, or both disclosed herein is merely representative. Based on the teachings herein one skilled in the art should 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. For example, an apparatus may be implemented using any number of the aspects set forth herein or a method may be practiced using any number of the aspects set forth herein. In addition, other structure, functionality, or structure and functionality in addition to or different from one or more of the aspects set forth herein may be used to implement the device or practice the method. Furthermore, an aspect may comprise at least one element of a claim. As an example of the above, in some aspects a method of wirel...

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Abstract

Adverse effects associated with collisions in a wireless communication system are mitigated by defining one or more values for receive data. Here, data that is expected to be received during a data transmission may be set to a defined value. In some cases the defined value is a predefined value (e.g., zero or some other value). In some cases the defined value is based on noise and / or signals levels in the system. In some implementations a device may define receive data values for a period of time during which data is expected to be received and during which a transmission occurs. In some aspects a hybrid on-off keying scheme is employed to determine received data values.

Description

[0001] claim priority [0002] This application claims the benefit and priority of commonly owned U.S. Provisional Patent Application No. 61 / 083,788, filed July 25, 2008, and assigned attorney docket number 090784P1, the disclosure of which is hereby incorporated by reference In this article. technical field [0003] The present application relates generally to wireless communications, and more particularly, but not exclusively, to determining the value of received data. Background technique [0004] In a wireless communication system, a given device transmits signals to and receives signals from at least one other device. In the absence of an orthogonal access scheme, more than one of these devices can transmit simultaneously. Conventionally, this event may be referred to as a conflict. In general, it is desirable to avoid collisions because collisions may adversely affect a device's ability to receive signals from another device. For example, a device may not be able ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/719H04L25/49
CPCH04B1/719H04L27/02H04L25/4902H04B1/717H04W74/08
Inventor 施军戴维·乔纳森·朱利安阿迈勒·埃克巴尔
Owner QUALCOMM INC