Invention Grant
US08948293B2 Downlink multiple input multiple output enhancements for single-cell with remote radio heads
有权
用于具有远程无线电头的单小区的下行多输入多输出增强
- Patent Title: Downlink multiple input multiple output enhancements for single-cell with remote radio heads
- Patent Title (中): 用于具有远程无线电头的单小区的下行多输入多输出增强
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Application No.: US13451718Application Date: 2012-04-20
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Publication No.: US08948293B2Publication Date: 2015-02-03
- Inventor: Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
- Applicant: Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Frederick J. Telecky, Jr.
- Main IPC: H04L27/10
- IPC: H04L27/10

Abstract:
A base station selects a subset of at least one geographically separated antennas for each of the plurality of user equipments. The base station forms at least layer of data stream including modulated symbols, precodes the data stream via multiplication with the NT-by-N precoding matrix where N is the number of said layers and NT is the number of transmit antenna elements and transmits the precoded layers of data stream to the user equipment via the selected geographically separated antennas. The base station signals the subset of the plurality of geographically separated antennas via higher layer Radio Resource Control or via a down link grant mechanism. The base station optionally does not signal the subset of the plurality of geographically separated antennas to the corresponding mobile user equipment.
Public/Granted literature
- US20120269278A1 DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT ENHANCEMENTS FOR SINGLE-CELL WITH REMOTE RADIO HEADS Public/Granted day:2012-10-25
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