Invention Grant
- Patent Title: Method and apparatus for downlink resource allocation in an orthogonal frequency division multiplexing communication system
- Patent Title (中): 在正交频分复用通信系统中用于下行链路资源分配的方法和装置
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Application No.: US13308587Application Date: 2011-12-01
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Publication No.: US09025682B2Publication Date: 2015-05-05
- Inventor: Brian K. Classon , Kevin L. Baum , Amitava Ghosh , Robert T. Love , Vijay Nangia , Rapeepat Ratasuk , Weimin Xiao
- Applicant: Brian K. Classon , Kevin L. Baum , Amitava Ghosh , Robert T. Love , Vijay Nangia , Rapeepat Ratasuk , Weimin Xiao
- Applicant Address: US CA Mountain View
- Assignee: Google Technology Holdings LLC
- Current Assignee: Google Technology Holdings LLC
- Current Assignee Address: US CA Mountain View
- Agency: Faegre Baker Daniels LLP
- Main IPC: H04L27/28
- IPC: H04L27/28 ; H04L5/00 ; H04L27/26 ; H04W72/12
Abstract:
A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.
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