Invention Grant
- Patent Title: Method and apparatus for spreading channel code selection
- Patent Title (中): 用于扩展频道码选择的方法和装置
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Application No.: US11624428Application Date: 2007-01-18
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Publication No.: US08009637B2Publication Date: 2011-08-30
- Inventor: John M. Harris , Vijay G. Subramanian
- Applicant: John M. Harris , Vijay G. Subramanian
- Applicant Address: US IL Schaumburg
- Assignee: Motorola Solutions, Inc.
- Current Assignee: Motorola Solutions, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Jeffrey K. Jacobs; Brian Mancini; Daniel R. Bestor
- Main IPC: H04B7/216
- IPC: H04B7/216

Abstract:
Various embodiments are described which may serve to improve spreading channel code selection in wireless technologies that employ two-stage ranging. For example, some of the embodiments enable a number of spreading codes to be reused at each network node (111, 112), potentially increasing the number of codes available to each remote unit and thereby reducing the collision rate. Rather than simply selecting a spreading channel code randomly, remote units (101-103), in some embodiments, select a spreading channel code based on one or more considerations such as pilot signal strength, remote unit location, a remote unit mobility level, and a priority class associated with the remote unit. Depending on the embodiment, network nodes can partition the spreading codes into groups and then assign link bandwidth to remote units based on the group associated with the code selected by that remote unit.
Public/Granted literature
- US20070211787A1 METHOD AND APPARATUS FOR SPREADING CHANNEL CODE SELECTION Public/Granted day:2007-09-13
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