Invention Grant
US08942712B2 Dynamic and configuration based fractional frequency reuse for uneven load distributions
有权
基于动态和配置的分数频率复用用于不均匀的负载分布
- Patent Title: Dynamic and configuration based fractional frequency reuse for uneven load distributions
- Patent Title (中): 基于动态和配置的分数频率复用用于不均匀的负载分布
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Application No.: US13970878Application Date: 2013-08-20
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Publication No.: US08942712B2Publication Date: 2015-01-27
- Inventor: Honghai Zhang , Narayan Prasad , Sampath Rangarajan
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: US NJ Princeton
- Assignee: NEC Laboratories America, Inc.
- Current Assignee: NEC Laboratories America, Inc.
- Current Assignee Address: US NJ Princeton
- Agent Joseph Kolodka; Akitaka Kimura
- Main IPC: H04W40/00
- IPC: H04W40/00 ; H04W72/04 ; H04B17/00 ; H04W16/02 ; H04W16/10

Abstract:
A fractional frequency reuse method for assigning physical resource units of a contiguous frequency band to sectors of cells is disclosed. Each cell includes at least one base station, for transmission of data to users in the sectors The method comprises, for each cell, segmenting the frequency band such that each separate segment includes a first contiguous portion of physical resource units dedicated to all sectors of the cell in vicinities of the center of the cell and a second contiguous portion of physical resource units dedicated for use in only one of the sectors in the cell in an outer area of the cell, assigning each cell with a physical resource unit configuration such that the second contiguous portion of physical resource units of a sector of a given cell partially overlaps with the first contiguous portion of physical resource units in a segment including the second contiguous portion dedicated to the same sector of a cell neighboring the given cell, and transmitting the data to the users in the sectors in accordance with the assigned physical resource unit configurations. Other methods, apparatuses, and systems also are disclosed.
Public/Granted literature
- US20130337858A1 DYNAMIC AND CONFIGURATION BASED FRACTIONAL FREQUENCY REUSE FOR UNEVEN LOAD DISTRIBUTIONS Public/Granted day:2013-12-19
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