Uplink MU-MIMO method and system
US9554394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2015 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Jul 13, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1896
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention provides an uplink MU-MIMO method. The method includes: sending, by a user equipment, a sounding reference signal to a base station, so that the base station constructs a precoding matrix according to the sounding reference signal, and generates a first scheduling message according to the precoding matrix; receiving the first scheduling message sent by the base station, where the first scheduling message includes a layer mapping rule and the precoding matrix; generating at least one MAC packet data unit MAC PDU according to the first scheduling message, and sending the MAC PDU, so that multiple user equipments exchange the MAC PDUs; generating an uplink signal after the MAC PDU is processed in various layers; and sending, by using an antenna, the uplink signal to the base station. The present invention greatly improves uplink spectral efficiency of a system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.