System and method for PUCCH subband feedback signaling in a wireless network
AssigneeSamsung Electronics Co., Ltd.
InventorsLingjia Liu, Jianzhong Zhang
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Abstract
A mobile station for use in a wireless network. The mobile station transmits feedback reports to a base station of the wireless network. The feedback reports comprise a first feedback report, a second feedback report and a third feedback report. The first feedback report includes a precoder type indication (PTI) value that indicates at least one of a period of the second feedback report and a period of the third feedback report. The PTI value indicates a ratio of the second feedback report period to the third feedback report period. The PTI value also indicates the selected feedback information contained in the second feedback report and the third feedback report.
Claims40
For use in a wireless network, a mobile station operable to transmit feedback reports to a base station of the wireless network,
- the feedback reports comprising a first feedback report, a second feedback report and a third feedback report,
- wherein the first feedback report includes a precoder type indication (PTI) value and
- wherein at least one of a period of the second feedback report and a period of the third feedback report is indicated by the PTI value.
A method for use in a mobile station operable to transmit feedback reports to a base station of a wireless network, the method including:
- transmitting to the base station a first feedback report including a precoder type indication (PTI) value;
- transmitting to the base station a second feedback report;
- and
- transmitting to the base station a third feedback report,
- wherein the PTI value indicates at least one of a period of the second feedback report and a period of the third feedback report.
For use in a wireless network, a base station operable to receive feedback reports transmitted by a mobile station,
- the feedback reports comprising a first feedback report, a second feedback report and a third feedback report,
- wherein the base station is configured to identify in the first feedback report a precoder type indication (PTI) value, and
- wherein the base station is configured to use the PTI value to determine at least one of a period of the second feedback report and a period of the third feedback report.
A method for use in a base station of a wireless network operable to receive feedback reports transmitted by a mobile station, the method comprising:
- receiving a first feedback report;
- identifying in the first feedback report a precoder type indication (PTI) value;
- determining from the PTI value at least one of a period of a second feedback report and a period of a third feedback report;
- receiving the second feedback report;
- and
- receiving the third feedback report.
A method for transmitting channel status information (CSI) in a communication system, the method comprising:
- reporting a first precoder matrix index (PMI);
- reporting a precoder type indicator (PTI);
- and
- reporting a second PMI,
- wherein the second PMI is selected based on codebook sub-sampling conditioned on a rank indicator (RI).
A method for receiving channel status information (CSI) in a communication system, comprising:
- receiving a first precoder matrix index (PMI);
- receiving a precoder type indicator (PTI);
- and
- receiving a second PMI,
- wherein the second PMI is selected based on codebook sub-sampling conditioned on a rank indicator (RI).
A terminal for transmitting channel status information in a communication system, the terminal comprising:
- a transceiver for transmitting signals to and from a base station;
- and
- a controller configured to control to report a first precoder matrix index (PMI), report a precoder type indicator (PTI), and report a second PMI, and
- wherein the second PMI is selected based on codebook sub-sampling conditioned on a rank indicator (RI).
A base station for receiving channel status information (CSI) in a communication system, the base station comprising:
- a transceiver for transmitting signals to and from the base station;
- and
- a controller configured to control the transceiver to receive a first precoder matrix index (PMI), receive a precoder type indicator (PTI), and receive a second PMI, and
- wherein the second PMI is selected based on codebook sub-sampling conditioned on a rank indicator (RI).
Dependencies are inferred from the claim text.