Invention Grant
- Patent Title: Method and system for diversity using orthogonal frequency/division multiplexing
- Patent Title (中): 使用正交频分复用的分集方法和系统
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Application No.: US13656311Application Date: 2012-10-19
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Publication No.: US09037093B2Publication Date: 2015-05-19
- Inventor: Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
- Applicant: Apple Inc.
- 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 ; H04B7/185 ; H04L5/02

Abstract:
A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
Public/Granted literature
- US20130051312A1 Method and System for Diversity Using Orthogonal Frequency/Division Multiplexing Public/Granted day:2013-02-28
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