Invention Grant
- Patent Title: Overlaid-coded beamforming
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Application No.: US15505954Application Date: 2016-12-01
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Publication No.: US10771136B2Publication Date: 2020-09-08
- Inventor: Carola Faronius , Torbjörn Wigren
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Murphy, Bilak & Homiller, PLLC
- International Application: PCT/SE2016/051196 WO 20161201
- International Announcement: WO2018/101867 WO 20180607
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04B7/0417

Abstract:
A method for radio communication between a transmitting node and receiving nodes comprises obtaining (S1) of directions from the transmitting node to the receiving nodes and antenna gains needed for each direction. A beam forming solution having a high gain in the directions of a set of receiving nodes and with antenna gains adapted to the need of the link is obtained (S2). User data to be transmitted to the receiving nodes is obtained (S3). The user data is overlay-coded (S4) by a code-domain overlaid code and/or a frequency-domain overlaid code, separately for each respective receiving node. The overlaid-coded user data is combined (S5) into at least one combined signal stream. Analogue beamforming, hybrid beamforming or constrained beamforming is performed (S6) on the combined signal stream(s) according to the beam forming solution. The beamformed data is transmitted (S7) from the transmitting node to the receiving nodes.
Public/Granted literature
- US20190097704A1 Overlaid-Coded Beamforming Public/Granted day:2019-03-28
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