发明名称 |
FREQUENCY DIVISION MULTIPLEXED ACKNOWLEDGE BACK PAGING SYSTEM |
摘要 |
An acknowledge back (ack-back) paging system is provided which includes a central station which transmits a group of message signals to an group of ack-back pagers which are addressed as a group. The users of the group of addressed ack-back pagers indicate a response to their respective pagers thus providing ack-back data. The pagers in the group of addressed ack-back pagers then simultaneously transmit back to the central station their ack-back data on different frequency sub-bands, a different frequency sub-band being allocated to each of the pagers in the group. |
申请公布号 |
CA1288820(C) |
申请公布日期 |
1991.09.10 |
申请号 |
CA19880582954 |
申请日期 |
1988.11.14 |
申请人 |
MOTOROLA, INC. |
发明人 |
SIWIAK, KAZIMIERZ;JASINSKI, LEON;STEEL, FRANCIS R. |
分类号 |
H04W84/02 |
主分类号 |
H04W84/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|