Pre-coder selection based on resource block grouping
The present invention provides a receiver. In one embodiment, the receiver includes a receive portion employing transmission signals from a transmitter having multiple antennas and capable of providing channel estimates. The receiver also includes a feedback generator portion configured to provide to the transmitter a pre-coder selection for data transmission that is based on the channel estimates, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks. The present invention also provides a transmitter having multiple antennas. In one embodiment, the transmitter includes a transmit portion coupled to the multiple antennas and capable of applying pre-coding to a data transmission for a receiver. The transmitter also includes a feedback decoding portion configured to decode a pre-coder selection for the data transmission that is fed back from the receiver, wherein the pre-coder selection corresponds to a grouping of frequency-domain resource blocks.
1. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of N pre-coders provided by a feedback signal from a receiver in which the pre-coder selection provides a single pre-coder for a group of contiguous resource blocks, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver.
2. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver, wherein the transmitter configures a number of contiguous resource blocks and signals the number to the receiver via a broadcast or a common control channel.
3. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks in which the grouping of the resource blocks is variable or fixed based on signaling support, N being an integer number of at least 1; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver.
4. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of N pre-coders provided by a feedback signal from a receiver in which the pre-coder selection provides a single pre-coder for each group of contiguous resource blocks, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1; and
applying the pre-coder selection to data to be transmitted to the receiver.
5. The method as recited in claim 4 wherein the transmitter configures a number of contiguous resource blocks and signals the number to the receiver via a broadcast or a common control channel.
6. The method as recited in claim 4 the transmitter determines a number of contiguous resource blocks based on a request from the receiver.
7. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks in which the groups of resource blocks are variable or fixed based on signaling support, N being an integer number of at least 1; and
applying the pre-coder selection to data to be transmitted to the receiver.
8. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver, wherein the transmission is based on channel estimates and CQI information.
9. The transmitter as recited in claim 8 , wherein the pre-coder selection and CQI are computed for the next time the receiver is scheduled by the transmitter to receive data.
10. The transmitter as recited in claim 9 , wherein the feedback decoding portion encodes the pre-coder selection and CQI information and feeds it back to the transmitter before the data is transmitted.
11. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1, wherein each of the resource blocks represents 180 kHz bandwidth; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver.
12. The transmitter as recited in claim 11 , wherein each of the resource blocks represents 180 kHz bandwidth comprising 12 OFDM/OFDMA sub-carriers.
13. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1, wherein each of the resource blocks represents 180 kHz bandwidth comprising 12 OFDM/OFDMA sub-carriers thereby giving a group size of 900 kHz for each of first, second and third pre-coders selected; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver.
14. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, wherein the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1; and
applying the pre-coder selection to data to be transmitted to the receiver, wherein the transmission is based on channel estimates and CQI information.
15. The method as recited in claim 14 , wherein the pre-coder selection and CQI are computed for the next time the receiver is scheduled by the transmitter to receive data.
16. The method as recited in claim 15 , wherein the feedback decoding portion encodes the pre-coder selection and CQI information and feeds it back to the transmitter before the data is transmitted.
17. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, the N pre-coders correspond to N groups of resource blocks, N being an integer number of at least 1, wherein each of the resource blocks represents 180 kHz bandwidth; and
applying the pre-coder selection to data to be transmitted to the receiver.
18. The transmitter as recited in claim 17 , wherein each of the resource blocks represents 180 kHz bandwidth comprising 12 OFDM/OFDMA sub-carriers.
19. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of N pre-coders provided by a feedback signal from a receiver, the N pre-coders correspond to N groups of resource blocks, wherein each of the resource blocks represents 180 kHz bandwidth comprising 12 OFDM/OFDMA sub-carriers thereby giving a group size of 900 kHz for each of first, second and third pre-coders selected; and
applying the pre-coder selection to data to be transmitted to the receiver.
20. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pie-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders correspond to a group of resource blocks and the pre-coder selection provides a single pre-coder for each group of contiguous resource blocks; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver.
21. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders correspond to a group of resource blocks; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver, wherein the transmitter configures a number of contiguous resource blocks and signals the number to the receiver via a broadcast or a common control channel.
22. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders correspond to a group of resource blocks in which the grouping of the resource blocks is variable or fixed based on signaling support; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver.
23. A transmitter having a plurality of antennas, comprising:
a feedback decoding portion configured to extract a pre-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders correspond to a group of resource blocks; and
a transmit portion coupled to the plurality of antennas for applying the pre-coding selection to data to be transmitted to the receiver, wherein the transmission is based on channel estimates and CQI information.
24. The transmitter as recited in claim 23 , wherein the pre-coder selection and CQI are computed for the next time the receiver is scheduled by the transmitter to receive data.
25. The transmitter as recited in claim 24 , wherein the feedback decoding portion encodes the pre-coder selection and CQI information and feeds it back to the transmitter before the data is transmitted.
26. A method of operating a transmitter having a plurality of antennas, comprising
extracting a pre-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders corresponds to a group of resource blocks and the pre-coder selection provides a single pre-coder for each group of contiguous resource blocks; and
applying the pre-coder selection to data to be transmitted to the receiver.
27. The method as recited in claim 26 wherein the transmitter configures a number of contiguous resource blocks and signals the number to the receiver via a broadcast or a common control channel.
28. The method as recited in claim 26 the transmitter determines a number of contiguous resource blocks based on a request from the receiver.
29. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders corresponds to a group of resource blocks and the grouping of the resource blocks is variable or fixed based on signaling support; and
applying the pre-coder selection to data to be transmitted to the receiver.
30. A method of operating a transmitter having a plurality of antennas, comprising:
extracting a pre-coder selection of pre-coders provided by a feedback signal from a receiver, wherein one of the pre-coders corresponds to a group of resource blocks; and
applying the pre-coder selection to data to be transmitted to the receiver, wherein the transmission is based on channel estimates and CQI information.
31. The method as recited in claim 30 , wherein the pre-coder selection and CQI are computed for the next time the receiver is scheduled by the transmitter to receive data.
32. The method as recited in claim 31 , wherein the feedback decoding portion encodes the pre-coder selection and CQI information and feeds it back to the transmitter before the data is transmitted.