Invention Grant
- Patent Title: Rake receiver methods and apparatus
- Patent Title (中): 耙式接收机的方法和装置
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Application No.: US12549675Application Date: 2009-08-28
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Publication No.: US08798117B1Publication Date: 2014-08-05
- Inventor: Colin Campbell , Oliver Charlesworth
- Applicant: Colin Campbell , Oliver Charlesworth
- Applicant Address: US CA Santa Clara
- Assignee: Spidercloud Wireless Inc
- Current Assignee: Spidercloud Wireless Inc
- Current Assignee Address: US CA Santa Clara
- Agency: Straub & Pokotylo
- Agent Michael P. Straub; Stephen T. Straub
- Main IPC: H04B1/00
- IPC: H04B1/00

Abstract:
Methods and apparatus for efficiently implementing a rake receiver which allows for rake receiver elements, e.g., fingers, to be dynamically assigned to antenna elements are described. In at least some embodiments multiple antennas are used. Rake elements are allocated to antennas in a dynamic manner with sets of weights also being assigned dynamically, e.g., based on channel estimates. Rake finger assignment to antenna's is made, in some embodiments, to maximize signal recovery taking into consideration the channel conditions detected by each antenna for the various delays that may be supported. Through the dynamic assignment of rake finger's to antenna's, a single rake finger may be coupled to different antennas at different times allowing for more efficient use as compared to systems where rake fingers are dedicated on a fixed basis to an individual antenna.
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