Feedback with unequal error protection

摘要

Methods and devices provide a feedback message having unequal error protection. The feedback message may include channel quality indicators. The channel quality indicators may have different levels of error protection based on a transmission property.

主权项

1. A method for providing feedback information by a device associated with a wireless network comprising:
receiving a plurality of transmissions via a receiver of the device; generating a feedback message based on the plurality of transmissions, the feedback message including an ordered set of feedback parts, with each feedback part comprising a value representing a level of link adaptation utility associated with a respective transmission property of each of the plurality of transmissions, said respective transmission property capable of having a range of transmission property values, where:
a greater transmission property value represents a lower path loss for a potential transmission than a lower transmission property value that represents a higher path loss for the potential transmission,the ordered set of feedback parts being defined such that a lowest value in the range of transmission property values for each of the feedback parts, except a first feedback part in the ordered set of feedback parts, is greater than a lowest value in the range of transmission property values of a preceding feedback part in the ordered set, andthe ordered set of feedback parts being defined such that the relationship between each feedback part and the range of transmission property values being such that one or more of the feedback parts include information that at least partly predicts a communication performance of the potential transmission with a characteristic corresponding to any of the transmission property values in the range of the transmission property values, wherein each of the one or more of the feedback parts includes a different number of channel quality indicators; encoding the feedback message for the plurality of transmissions using an unequal error protection code based on a transmission property that provides a plurality of levels of error protection for the feedback parts, where:
a level of error protection of each feedback part, except the first feedback part, is lower than or equal to a level of error protection of the preceding feedback part, andat least two of the feedback parts in the ordered set have differing levels of error protection; and transmitting the encoded feedback message.