Method and apparatus for preserving compatibility between...

Details Method and apparatus for preserving compatibility between... Method and apparatus for preserving compatibility between...

2005-10-13

2008-11-11

Nguyen, Lee (Department: 2618)

Multiplex communications

Communication over free space

Combining or distributing information via time channels

C370S329000, C455S452100

Reexamination Certificate

active

07450559

ABSTRACT:
A method and an apparatus for preserving compatibility between legacy mode of operation and new mode of operation in a communication system, wherein allocation of resources is different in the legacy mode of operation and the new mode of operation is disclosed. Accordingly, an entity of a wireless access network, e.g., a base station, transmits signals comprising information about reallocation of resources from a legacy mode of operation to a new mode of operation. These signals are received at another entity of a wireless access network, e.g., a subscriber station, which then controls use by the subscriber station of resources allocated to the subscriber station in accordance with the information.

REFERENCES:
patent: 2003/0185241 (2003-10-01), Lu et al.
patent: 2005/0141407 (2005-06-01), Sandhu
patent: 2005/0181800 (2005-08-01), Trachewsky et al.
Jianhua Liu et al., “A MIMO System With Backward Compatibility for OFDM Based WLANS”, Signal Processing Advances in Wireless Communications, Jun. 2003, pp. 130-134, XP-10713389, SPAWC, Piscataway, NJ, USA.

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