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Sending pilots on secondary channels for improved acquisition and handoff in cellular communication

An auxiliary pilot and channel frequency band technology, applied in the field of wireless communication, can solve problems such as complexity, communication interruption, and having to tune away from the first frequency band

Inactive Publication Date: 2013-01-02
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, in order to measure signal strength on the second frequency band (e.g., to be able to handover to a base station operating on the second frequency band), the mobile device typically has to tune away from the first frequency band (e.g., because the mobile device cannot operate on a given frequency band). receiving signals on more than one frequency band at any time)
This tune away would result in a loss of communication on the first frequency band, thereby degrading the quality of service
Further, traditional tune away often requires the use of signaling protocols that mitigate such disruptions, resulting in a computationally intensive
Also, complex hardware designs are often used for these traditional techniques to support fast switching between frequencies

Method used

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  • Sending pilots on secondary channels for improved acquisition and handoff in cellular communication
  • Sending pilots on secondary channels for improved acquisition and handoff in cellular communication
  • Sending pilots on secondary channels for improved acquisition and handoff in cellular communication

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Embodiment Construction

[0032] Embodiments are now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It is evident, however, that the embodiment(s) 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 embodiments.

[0033] As used in this application, the terms "component", "module", "system" and the like mean a computer-related entity, either hardware, firmware, a combination of hardware and software, software, or the execution of software. For example, a component may be, but is not limited to being limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer...

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PUM

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Abstract

Systems and methodologies are described that facilitate enhancing acquisition and handoff in a wireless network deployment by leveraging primary pilots and secondary pilots. The deployment can support more than one frequency band for operation, yet a mobile device can receive signals on one frequency band at a given time. Thus, a base station can transmit primary pilot(s) over frequency band(s) associated with operating data channel(s) as well as secondary pilot(s) over frequency band(s) that lack data channel(s) for the base station. Moreover, the base station can convey information that indicates to a mobile device whether each pilot is primary or secondary. Further, the mobile device can employ knowledge of pilot type (e.g., primary or secondary) as well as signal strength to effectuate handoff decisions; thus, disruptions in communication can be mitigated.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 60 / 866,506, filed November 20, 2006, entitled "SENDING PILOTS ONSECONDARY CHANNELS FOR IMPROVED ACQUISITION ANDHANDOFF IN CELLULAR COMMUNICATION." The entire contents of the aforementioned applications are hereby incorporated by reference. technical field [0003] The following description relates generally to wireless communications, and in particular to employing pilots transmitted via auxiliary channels to enhance handovers in wireless communications systems. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication; for example, voice and / or data may be provided via such wireless communication systems. A typical wireless communication system, or network, may provide multiple users with access to one or more shared resources (eg, bandwidth, transmit power, . . . ). For examp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W48/12H04W48/16H04W48/20H04W74/00
CPCH04W48/08H04W36/00H04W48/12H04W74/00H04L5/0048H04W36/24
Inventor R·普拉卡什F·乌卢皮纳尔
Owner QUALCOMM INC