Invention Grant
- Patent Title: Downlink multiple input multiple output enhancements for single-cell with remote radio heads
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Application No.: US14613176Application Date: 2015-02-03
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Publication No.: US10033447B2Publication Date: 2018-07-24
- Inventor: Eko Onggosanusi , Vikram Chandrasekhar , Runhua Chen
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Charles A. Brill; Frank D. Cimino
- Main IPC: H04L27/10
- IPC: H04L27/10 ; H04B7/0456 ; H04B7/024 ; H04B7/0452 ; H04W72/12 ; H04B7/0413 ; H04B7/06 ; H04B7/10

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
- US20150146676A1 DOWNLINK MULTIPLE INPUT MULTIPLE OUTPUT ENHANCEMENTS FOR SINGLE-CELL WITH REMOTE RADIO HEADS Public/Granted day:2015-05-28
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