Invention Grant
- Patent Title: Apparatus and method for mobile assisted adaptive FFR
- Patent Title (中): 移动辅助自适应FFR的装置和方法
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Application No.: US12830909Application Date: 2010-07-06
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Publication No.: US08649338B2Publication Date: 2014-02-11
- Inventor: Sophie Vrzic , Mo-Han Fong
- Applicant: Sophie Vrzic , Mo-Han Fong
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Main IPC: H04B17/00
- IPC: H04B17/00 ; H04W72/12

Abstract:
In a method of fractional frequency reuse in a communication network, a frequency band is divided into a plurality of sub-bands according to a Fractional Frequency Reuse (FFR) scheme to define a FFR allocation of the band for a plurality of bases stations, each of the base stations being associated with a respective region. At a first base station of the plurality of base stations, the first base station associated with a first region, communication with a mobile terminal in the first region is established on one of the plurality of sub-bands according to the FFR allocation. A second base station of the plurality of base stations, the second base station associated with a second region, transmits on the one of the plurality of sub-bands according to the FFR allocation; receives an indication of a coverage problem detected at the mobile terminal due to interference from the second base station on the one of the plurality of sub-bands; and in response to the receiving the indication, decreases a transmit power level for the one of the plurality of sub-bands in the second region.
Public/Granted literature
- US20120008569A1 APPARATUS AND METHOD FOR MOBILE ASSISTED ADAPTIVE FFR Public/Granted day:2012-01-12
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