| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for more efficiently transmitting pilot and signaling on the uplink in a wireless communication system. SOLUTION: There is provided the technique for more efficiently transmitting the pilot and signaling on the uplink in an OFDM system. With subband multiplexing, M usable subbands in the system are partitioned into Q disjoint groups of subbands. Each subband group may be assigned to a different terminal for uplink pilot transmission. Multiple terminals may transmit simultaneously on their assigned subbands. The transmit power for the pilot may be scaled higher to attain the same total pilot energy even though S instead of M subbands are used for pilot transmission by each terminal. Pilot transmissions from the terminals are received, and a channel estimate is derived by each terminal. COPYRIGHT: (C)2010,JPO&INPIT |
