Uplink MU-MIMO method and system

摘要

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.

主权项

1. An uplink MU-MIMO method, wherein the method comprises:
receiving, by a base station, sounding reference signals sent by multiple user equipments, wherein the multiple user equipments meet a short-distance transmission condition; constructing, by the base station, a precoding matrix according to the received sounding reference signals; generating, by the base station, a first scheduling message according to the precoding matrix; sending, by the base station, the first scheduling message to the multiple user equipments, so as to schedule at least one user equipment in the multiple user equipments to generate at least one MAC packet data unit (MAC PDU), and exchange the MAC PDUs between the multiple user equipments by using a short-distance transmission technology; and receiving, by the base station after a preset fixed time, uplink signals sent by the multiple user equipments, wherein the uplink signals are uplink signals generated after the multiple user equipments separately process the MAC PDUs.