| US 7,551,546 B2 | ||
| Dual-mode shared OFDM methods/transmitters, receivers and systems | ||
| Jianglei Ma, Kanata (Canada); Wen Tong, Ottawa (Canada); Ming Jia, Ottawa (Canada); Peiying Zhu, Kanata (Canada); and Dong-Sheng Yu, Ottawa (Canada) | ||
| Assigned to Nortel Networks Limited, St. Laurent, Quebec (Canada) | ||
| Filed on Apr. 04, 2003, as Appl. No. 10/406,207. | ||
| Claims priority of provisional application 60/391624, filed on Jun. 27, 2002. | ||
| Prior Publication US 2004/0001429 A1, Jan. 01, 2004 | ||
| Int. Cl. H04J 11/00 (2006.01); H04B 7/216 (2006.01); H04L 1/02 (2006.01) | ||
| U.S. Cl. 370—208 [370/335; 370/342; 375/267] | 76 Claims |
| 1. A wireless terminal for communicating over a shared OFDM band, the wireless terminal comprising:
a first transmit chain configured to generate and transmit a low rate mode OFDM transmission in a first frequency band of
the shared OFDM band in a first subset of a plurality of OFDM transmission intervals; and
a second transmit chain configured to generate and transmit a burst-mode transmission in a second frequency band of the shared
OFDM band in a second subset of the plurality of OFDM transmission intervals,
the first subset of the plurality of OFDM transmission intervals having at least one OFDM transmission interval in common
with the second subset of the plurality of OFDM transmission intervals,
wherein for the at least one OFDM transmission interval common between the first subset and the second subset, the first frequency
band is non-overlapping in frequency with the second frequency band.
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