Title:
TRANSCEIVER ARCHITECTURE FOR MULTIPLE ANTENNA SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2016/078565
Kind Code:
A1
Abstract:
A transceiver architecture with combined digital beamforming and analog/hybrid beamforming is proposed. Digital beamforming is used for beam training with reduced overhead (switching time). It is beneficial to estimate all UE's angle of arrival (AoA) at the same time. In addition, the pilot/training signals are transmitted in a narrow band to reduce complexity. Analog/hybrid beamforming is used for data transmission with high directive gain and low complexity. The value of beamforming weights (phase shifter values) in analog domain can be based on the estimation of AoA from beam training. By using digital beamforming for beam training, combined with analog/hybrid beamforming for data transmission, effective beamforming is achieved with reduced overhead, complexity, and cost.
Inventors:
CHEN JU-YA (CN)
ZHAN JING-HONG CONAN (CN)
ZHAN JING-HONG CONAN (CN)
Application Number:
PCT/CN2015/094764
Publication Date:
May 26, 2016
Filing Date:
November 17, 2015
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04B7/04
Domestic Patent References:
| WO2013169055A1 | 2013-11-14 |
Foreign References:
| GB2332304A | 1999-06-16 | |||
| US20130258972A1 | 2013-10-03 |
Other References:
See also references of EP 3207642A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (Block ACorporate Square,No.35 Jinrong Street, Beijing 3, CN)
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