Invention Grant
- Patent Title: Methods and systems for ranging using ranging loading factor
- Patent Title (中): 使用测距加载系数进行测距的方法和系统
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Application No.: US12337640Application Date: 2008-12-18
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Publication No.: US08179813B2Publication Date: 2012-05-15
- Inventor: Steven D. Cheng , Patrick Lim , Tom Chin
- Applicant: Steven D. Cheng , Patrick Lim , Tom Chin
- Applicant Address: US CA San Diego
- Assignee: Qualcomm Incorporated
- Current Assignee: Qualcomm Incorporated
- Current Assignee Address: US CA San Diego
- Agent Milan I. Patel; Tyler J. Overall
- Main IPC: H04L12/26
- IPC: H04L12/26

Abstract:
Methods and apparatus for indicating a base station's amount of ranging traffic to a mobile station (MS) and for selecting a base station (BS) for performing ranging based on the ranging traffic indication are provided. This notification may occur via a ranging loading parameter, such as a ranging loading factor (RLF) indicating the ratio of used ranging slots to available ranging slots, transmitted as a new TLV (Type-Length-Value) within the Uplink Channel Descriptor (UCD) of a (potential) serving BS or in the UCD of a Neighbor Advertisement (MOB_NBR-ADV) message for a neighbor BS. By selecting a BS with a certain level of unused ranging slots, the MS may exponentially decrease the ranging overhead (i.e., the average waiting time for the ranging procedures) when compared to a conventional MS that does not consider a BS's ranging overload when trying to perform ranging with the BS.
Public/Granted literature
- US20100157820A1 METHODS AND SYSTEMS FOR RANGING USING RANGING LOADING FACTOR Public/Granted day:2010-06-24
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