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Status validation for terminals in a wireless communication system

A terminal and state technology, applied in the field of communication, can solve problems such as waste of wireless resources

Inactive Publication Date: 2009-07-29
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The terminal may not send transmissions on the radio resource, then the radio resource will be wasted

Method used

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  • Status validation for terminals in a wireless communication system
  • Status validation for terminals in a wireless communication system
  • Status validation for terminals in a wireless communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The word "exemplary" is used herein to mean "serving as an instance, instance, or illustration." Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs.

[0022] FIG. 1 shows a wireless communication system 100 with multiple base stations 110 and multiple terminals 120 . A base station is a station that communicates with a terminal. A base station may also be referred to as, and may include some or all functionality of, a Node B, access point, and / or some other network entity. Each base station 110 provides communication coverage for a particular geographic area 102 . The term "cell" can refer to a base station and / or its coverage area depending on the context in which the term is used. To improve system capacity, the base station coverage area can be divided into multiple smaller areas, eg, three smaller areas 104a, 104b, and 104c. Each smaller area may be served by ...

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PUM

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Abstract

A terminal is assigned an active identifier for use while in an active state of a connection with a base station. The base station periodically broadcasts the status of the active identifiers for that base station, e.g., via status validation bits that indicate whether each active identifier is currently assigned to a terminal or not assigned to any terminal. The base station may also broadcast the identity (e.g., a scrambling mask) of the terminal assigned with each active identifier that is currently in use. If a terminal believes that it is assigned a particular active identifier, then the terminal checks the status validation bit for this active identifier. If this status validation bit indicates that the active identifier is currently in use, then the terminal may further check the scrambling mask sent for the active identifier in order to determine whether the terminal is actually assigned the active identifier.

Description

technical field [0001] The present disclosure generally relates to the communication field, and more particularly relates to a technique for determining a connection state of a terminal in a wireless communication system. Background technique [0002] A terminal in a wireless communication system (eg, a cellular telephone in a cellular system) may communicate with one or more base stations during a call. The terminal may be mobile and may be handed off from one base station to another as the terminal moves around during a call. The terminal may also be sporadically active while the terminal is connected to any given base station. In order to save radio resources, radio resources are allocated to the terminal when it is active, and no radio resources are allocated to the terminal when it is idle. [0003] The dynamic nature of a terminal's connections to different base stations and the dynamics of its activities make it challenging to track the terminal's connection state. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/02H04W8/26H04W72/04H04W92/10
CPCH04W76/021H04W48/12H04W92/10H04W72/04H04W8/26H04W76/11H04W4/06H04W8/24
Inventor R·拉罗亚厉隽怿P·A·阿尼格施泰因S·V·乌帕拉
Owner QUALCOMM INC