EXTENDED DURATION CYCLIC PREFIX WITH LOW OVERHEAD FOR LTE BROADCAST

摘要

Extended duration cyclic prefixes with lower overhead are disclosed in which an integer multiple sequence of carriers above the nominal 300 carrier-per-25 resource blocks (RBs) definition are selected to reduce the cyclic prefix overhead below the normative 20%. Sets of durations are then provided associated with each such integer multiple sequence of carriers that allow for the combined duration of the symbol duration and extended duration cyclic prefix to result in an integer number of carriers for each RB.

主权项

1. A method of wireless communication, comprising:
selecting a cyclic prefix overhead for orthogonal division multiple access (OFDMA) symbols to be transmitted in a broadcast, wherein the cyclic prefix overhead is determined based on an integer multiple of a standard carriers-to-resource blocks (RBs) definition; selecting a cyclic prefix duration for the OFDMA symbols, wherein the cyclic prefix duration is determined to result in an integer number of carriers per RB based on the integer multiple of the standard carriers-to-RBs definition; and transmitting the OFDMA symbols using the cyclic prefix duration and cyclic prefix overhead.