Invention Grant
- Patent Title: Dual layer beam forming in cellular networks
- Patent Title (中): 蜂窝网络中的双层波束形成
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Application No.: US14452342Application Date: 2014-08-05
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Publication No.: US09178589B2Publication Date: 2015-11-03
- Inventor: Runhua Chen , Eko Nugroho Onggosanusi
- 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; Frank D. Cimino
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B7/04 ; H04L5/00 ; H04L25/02 ; H04L25/03 ; H04W72/04

Abstract:
Single user and multiuser MIMO transmission in a cellular network may be performed by selecting by a base station (eNB) to transmit either one or two transmission layers. When one transmission layer is selected, a first transmission layer is precoded with a first precoder. A first demodulation reference signal (DMRS) sequence or a second DMRS sequence is selected by the eNB and precoded using the first precoder. The first transmission layer is transmitted with the selected precoded DMRS from the eNB to a user equipment (UE), and an indicator is transmitted to the UE to indicate which DMRS sequence is selected and transmitted.
Public/Granted literature
- US20140348109A1 DUAL LAYER BEAM FORMING IN CELLULAR NETWORKS Public/Granted day:2014-11-27
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