US 7,515,563 B2 · Communications systems

Abstract

Communications systems are disclosed having a transmitting apparatus for transmitting a signal to a receiving apparatus, the transmitting apparatus comprising transmitting means for transmitting a plurality of directional transmission beams to the receiving apparatus via different transmission paths, each transmission beam carrying a transmission signal. The transmitting apparatus may include coding means (58) for coding the transmission signals carried by the transmission beams, the coding means (58) being arranged to code the transmission signal carried by one transmission beam differently from the transmission signal carried by another transmission beam. The transmitting apparatus may receive a feedback signal (122) indicating the quality of the various transmission beams and transmit a data signal only in selected transmission beams. A time advance may be selectively applied to some of the transmission signals so that the transmission signals arrive at a receiving apparatus in time synchronism.

Claims7

Dependent claims

A receiving apparatus, comprising:

a receiving unit operable to receive a first signal corresponding to first data and a second signal corresponding to second data from a transmitting apparatus via different transmission paths, wherein the first data and the second data are channel encoded separately and are spread by using a common spreading code before transforming into the first signal and the second signal;
a channel decoding part operable to execute channel decoding process separately for the first and the second signal received by the receiving unit to obtain the first data and the second data,
wherein the transmitting apparatus has a plurality of antennas and weights are assigned to the first signal and the second signal before being provided to the plurality of antennas.

Dependencies are inferred from the claim text.

Communications systems

Life of this patent

Communications systems

Life of this patent

Abstract

Claims7