US 8,619,641 B2 · Single-user beamforming method and apparatus suitable for frequency division duplex system

Abstract

The present invention provides a single-user beamforming method suitable for a frequency division duplex system, comprising the following steps: obtaining a first transmission weight and a second transmission weight according to an uplink signal; using the first transmission weight to weight after adding a dedicated pilot of a layer 1 to a to-be-transmitted first data stream, and using the second transmission weight to weight after adding a dedicated pilot of a layer 2 to a to-be-transmitted second data stream; mapping the weighted first data stream to an antenna, mapping the weighted second data stream to the antenna, and sending them after superimposing them at the antenna port. The present invention also provides a single-user beamforming apparatus suitable for a frequency division duplex system. The present invention can send two data streams to one user at the same time, so it increases throughputs of user and system.

Claims13

Dependent claims

A single-user beamforming method suitable for a frequency division duplex system, comprising:

obtaining a first transmission weight and a second transmission weight from an uplink signal;
adding a first dedicated pilot into a first data stream of a single-user, multiplying the first data stream with the first transmission weight;
adding a second dedicated pilot into a second data stream of the single-user, multiplying the second data stream with the second transmission weight;
superimposing and sending the first data stream and the second data stream at an antenna port;
wherein the first dedicated pilot is dedicated to the first data stream, and the second dedicated pilot is dedicated to the second data stream.

2 more elements

A single-user beamforming apparatus suitable for a frequency division duplex system, comprising:

a transmission weight acquisition unit, which is used to obtain a first transmission weight and a second transmission weight from an uplink signal;
a data processing unit, which is used to add a first dedicated pilot into a first data stream of a single-user, and to multiply the first data stream with the first transmission weight;
to add a second dedicated pilot into a second data stream of the single-user, and to multiply the second data stream with the second transmission weight;
wherein the first dedicated pilot is dedicated to the first data stream, and the second dedicated pilot is dedicated to the second data stream;
a transmission unit, which is used to superimpose the first data stream and the second data stream at an antenna port and then send them.

2 more elements

Dependencies are inferred from the claim text.

Single-user beamforming method and apparatus suitable for frequency division duplex system

Life of this patent

Single-user beamforming method and apparatus suitable for frequency division duplex system

Life of this patent

Abstract

Claims13