Communication scheme for channel quality information
AssigneePanasonic Corporation
InventorAlexander Golitschek
Life of this patent
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Abstract
The invention relates to a method for transmitting and a method for reconstructing channel quality information in a communication system. Further, the invention also provides a transmitter and receiver performing these methods, respectively. The invention suggests a scheme for communicating channel quality measures that on the one hand allows for an accurate reconstruction of the channel quality measures at the receiver and on the other hand requires an acceptable transmission overhead. This is achieved by partitioning channel quality measures into at least two partitions and to compress the values partition-wise, for example by means of a discrete cosine transform and the transmission of only a subset of the resulting coefficients.
Claims19
A method for transmitting channel quality information in a communication system comprising the following steps performed by a transmitting entity:
- partitioning channel quality values into at least two partitions by comparing respective channel quality values to at least one channel quality threshold value;
- transforming the channel quality values of at least one of the at least two partitions to obtain channel quality coefficients;
- encoding the channel quality coefficients to obtain signaling information on channel quality;
- and
- signaling the signaling information on the channel quality to a receiving entity.
A method for transmitting channel quality information in a communication system comprising the following steps performed by a transmitting entity:
- partitioning channel quality values into at least two partitions by comparing respective channel quality values to at least one channel quality threshold value;
- encoding the channel quality values to obtain signaling information on channel quality;
- and
- signaling the signaling information on the channel quality to a receiving entity.
A method for reconstructing channel quality values comprising the following steps performed by a receiving entity:
- receiving signaling information on channel quality from a transmitting entity;
- decoding the signaling information on the channel quality to obtain channel quality coefficients of at least two partitions;
- transforming the channel quality coefficients of each partition to obtain channel quality values for a respective partition;
- and
- reconstructing the channel quality values using channel quality values of at least one partition, wherein the channel quality values of the at least one partition having been partitioned by comparing respective channel quality values to at least one channel quality threshold value.
A method for reconstructing channel quality values comprising the following steps performed by a receiving entity:
- receiving signaling information on channel quality from a transmitting entity;
- decoding the signaling information on the channel quality to obtain channel quality values of at least two partitions;
- and
- reconstructing the channel quality values using channel quality values of at least one partition, wherein the channel quality values of the at least one partition having been partitioned by comparing respective channel quality values to at least one channel quality threshold value.
A transmitter for transmitting channel quality information in a communication system, the transmitter comprising:
- a processing unit configured to partition channel quality values into at least two partitions by comparing respective channel quality values to at least one channel quality threshold value,
- wherein the processing unit is adapted to transform the channel quality values of at least one of the at least two partitions to obtain channel quality coefficients;
- a coding unit configured to encode the channel quality coefficients to obtain signaling information on channel quality;
- and
- a transmitting unit configured to signal the signaling information on the channel quality to a receiving entity.
A transmitter for transmitting channel quality information in a communication system, the transmitter comprising:
- a processing unit configured to partition channel quality values into at least two partitions by comparing respective channel quality values to at least one channel quality threshold value;
- a coding unit configured to encode the channel quality values to obtain signaling information on the channel quality;
- and
- a transmitting unit configured to signal the signaling information on channel quality to a receiving entity.
A receiver for reconstructing channel quality values comprising:
- a receiving unit configured to receive signaling information on channel quality from a transmitting entity;
- a decoding unit configured to decode the signaling information on the channel quality to obtain channel quality coefficients of at least two partitions;
- and
- a processing unit configured to transform the channel quality coefficients of each partition to obtain channel quality values for a respective partition,
- wherein the processing unit is adapted to reconstruct channel quality values using the channel quality values of at least one partition and wherein the channel quality values of the at least one partition having been partitioned by comparing respective channel quality values to at least one channel quality threshold value.
A receiver for reconstructing channel quality values comprising:
- a receiving unit configured to receive signaling information on channel quality from a transmitting entity;
- a decoding unit configured to decode the signaling information on the channel quality to obtain channel quality values of at least two partitions;
- and
- a processing unit configured to reconstruct channel quality values using the channel quality values of at least one partition wherein the channel quality values of the at least one partition having been partitioned by comparing respective channel quality values to at least one channel quality threshold value.
Dependencies are inferred from the claim text.