Method and apparatus for transmitting/receiving signals in multiple-input multiple-output communication system provided with plurality of antenna elements
AssigneeLG Electronics Inc.
InventorSeung Hwan Won
Life of this patent
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Abstract
A method and apparatus for transmitting/receiving signals in a multiple-input multiple-output communication system provided with a plurality of antenna elements is disclosed. Accordingly, the present invention provides a plurality of antenna groups at one distance having the antenna elements arranged at the other distance, a method and a means for identifying the groups and adding an identifier for the groups. It further provides a method and an apparatus for allocating power for the groups.
Claims42
A method for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- (a) dividing the plurality of antenna elements into N groups according to locations of the plurality of antenna elements;
- (b) dividing a data stream into N sub-data streams including identifiers of the antenna elements of a corresponding group and signal-processing the sub-data streams;
- and
- (c) transmitting an ith processed sub-data stream to a receiver through each antenna element of an ith group with different transmission delays for i=1, 2, . . . , and N.
A communication method in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- (a) dividing the plurality of transmitting antenna elements into N groups according to locations of the plurality of transmitting antenna elements;
- (b) dividing a data stream into N sub-data streams including identifiers of the antenna elements of a corresponding group and signal-processing the sub-data streams;
- (c) transmitting an ith processed sub-data stream to a receiver through each transmitting antenna element of an ith group with different transmission delays for i=1, 2, . . . , and N.
- (d) receiving the processed sub-data streams which are transmitted;
- (e) detecting antenna element identifiers of each processed sub-data stream;
- (f) detecting symbols from the processed ith sub-data stream with different transmission delays and its detected antenna element identifiers for i=1, 2, . . . , and N;
- and
- (g) restoring the data stream by combining the detected symbols.
A method for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- (a) dividing the plurality of antenna elements into N groups according to locations of the plurality of antenna elements;
- (b) dividing a data stream into N sub-data streams and signal-processing the sub-data streams;
- and
- (c) transmitting an ith processed sub-data stream to a receiver through each antenna element of an ith group with different transmission delays for i=1, 2, . . . , N and transmitting identifiers of the antenna elements of the ith group through a seperate channel.
A communicating method in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- (a) dividing the plurality of antenna elements into N groups according to locations of the plurality of antenna elements;
- (b) dividing a data stream into N sub-data streams and signal-processing the sub-data streams;
- and
- (c) transmitting an ith processed sub-data stream to a receiver through each antenna element of an ith group with different transmission delays for i=1, 2, . . . , N and transmitting identifiers of the antenna elements of the ith group through a separate channel.
- (d) receiving the processed sub-data streams
- (d) estimating respective channel vectors of the identifiers;
- (e) detecting desired symbols by applying nulling vectors of the estimated channel vectors to the processed sub-data streams, respectively;
- (g) restoring the data stream by multiplexing the detected symbols.
An apparatus for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- N groups into which the apparatus divides the plurality of antenna elements according to locations of the plurality of antenna elements;
- a demultiplexer for dividing a data stream into N sub-data streams including identifiers of the antenna elements of a corresponding group;
- and
- a processor for signal-processing the sub-data streams, wherein the apparatus transmits an ith processed sub-data stream to a receiver through each antenna element of an ith group with different transmission delays for i=1, 2, . . . , and N.
A communication apparatus in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- N groups into which the apparatus divides the plurality of transmitting antenna elements according to locations of the plurality of transmitting antenna elements;
- a demultiplexer for dividing a data stream into N sub-data streams including identifiers of the antenna elements of a corresponding group;
- a processor for signal-processing the sub-data streams, wherein the apparatus transmits an ith processed sub-data stream to a receiver through each transmitting antenna element of an ith group with different transmission delays for i=1, 2, . . . , and N.
- a first detector for detecting antenna element identifiers of each processed sub-data stream received;
- a second detector for detecting symbols from the processed ith sub-data stream with different transmission delays and its detected antenna element identifiers for i=1, 2, . . . , and N;
- and
- a combiner for combining the detected symbols to restore the data stream.
An apparatus for transmitting signals in a multiple-input multiple-output communication system provided with a plurality of antenna elements, comprising:
- N groups into which the apparatus divides the plurality of antenna elements according to locations of the plurality of antenna elements;
- a demultiplexer for dividing a data stream into N sub-data streams;
- a processor for signal-processing the sub-data streams, wherein the apparatus transmits an ith processed sub-data stream to a receiver through each antenna element of an ith group with different transmission delays for i=1, 2, . . . , N and transmits identifiers of the antenna elements of the ith group through a seperate channel.
A communicating apparatus in a multiple-input multiple output communication system provided with a plurality of antenna elements, comprising:
- N groups into which the apparatus divides the plurality of antenna elements according to locations of the plurality of antenna elements;
- a demultiplexer for dividing a data stream into N sub-data streams and signal-processing the sub-data streams;
- wherein the apparatus transmits an ith processed sub-data stream to a receiver through each antenna element of an ith group with different transmission delays for i=1, 2, . . . , N and transmits identifiers of the antenna elements of the ith group through a separate channel;
- a channel estimator for estimating respective channel vectors of the identifiers transmitted;
- a detector for detecting desired symbols by applying nulling vectors of the estimated channel vectors to the processed sub-data streams, respectively, and
- a multiplexer for multiplexing the detected symbols to restore the data stream.
Dependencies are inferred from the claim text.