Radio communication system

Details Radio communication system Radio communication system

2005-06-14

2005-06-14

Ho, Duc (Department: 2665)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S461000, C709S229000

Reexamination Certificate

active

06907015

ABSTRACT:
A radio communication system has a random access channel for the transmission of data (214) from a secondary station to a primary station. Such a channel is intended for use by secondary stations having data (214) to transmit to a primary station while not actually engaged in a call. A problem with known systems of this type is that a secondary station requesting access also specifies which of a plurality of resources it wishes to access. If that resource is busy access is denied, even if other suitable channels are available. In the present system allocation of a channel is performed by the primary station when acknowledging (206,210) a secondary station's access attempt (202,208), thereby eliminating wasted attempts. In one embodiment the primary station also periodically broadcasts a short message indicating the availability of channels for access attempts.

REFERENCES:
patent: 6111869 (2000-08-01), Esmailzadeh et al.
patent: 6163533 (2000-12-01), Esmailzadeh et al.
patent: 6259724 (2001-07-01), Esmailzadeh
patent: 6389056 (2002-05-01), Kanterakis et al.
patent: 6400695 (2002-06-01), Chuah et al.
patent: 6574267 (2003-06-01), Kanterakis et al.
patent: 6594240 (2003-07-01), Chuah et al.
patent: 6606341 (2003-08-01), Kanterakis et al.
patent: 6639936 (2003-10-01), Kanterakis et al.
patent: 6643275 (2003-11-01), Gustafsson et al.
patent: 2003/0223476 (2003-12-01), Kanterakis et al.
patent: 2004/0042429 (2004-03-01), Kanterakis et al.
patent: 0993215 (2000-04-01), None
patent: 2346779 (2000-08-01), None

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