METHOD AND APPARATUS FOR UPLINK SIGNAL TRANSMISSION AND CHANNEL ESTIMATION IN WIRELESS ACCESS NETWORK
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United States of America Patent
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Issued Date -
Jul 7, 2011
app pub date -
Sep 5, 2008
filing date -
Sep 4, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention provides a new method and apparatus, in a network device of a multi-carrier based wireless access network, for transmitting uplink data to access device side, and the corresponding method and apparatus for channel estimation in its uplink counterpart device, wherein, a plurality of network device comprise one or more multi-antenna network devices, at least one of the multi-antenna network device transmits multipath subcarrier modulated symbols via a plurality of transmitting antennas configured for itself, wherein, at least two transmitting antennas use different subcarrier sets, but share one pilot pattern, wherein, pilot pattern used by each network device is different from the pilot pattern used by any other network device. The present invention not only can fully utilize the frequency diversity introduced by the plurality of transmitting antennas, but also can guarantee a relative high antenna power gain and save as much time-frequency resource cost caused by pilot signal as possible.
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