Energy saving protocol for a TDM radio

Details Energy saving protocol for a TDM radio Energy saving protocol for a TDM radio

1991-01-18

1992-09-22

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

34082544, 455343, H04B 116, G08B 522

Patent

active

051503611

ABSTRACT:
A battery powered TDM (or combined TDM/FDM) communication device (104, 105) operates within a TDM communication system (100) having a communication channel arranged into repetitive time frames (401) each having a plurality of slots. At least two of these slots (404) are allocated for communicating signalling and control information. To conserve energy, the battery powered communication device operates in a first mode (i.e., the energy saving mode) to shut down non-essential circuits for a predetermined time interval, awaking to monitor only one of the two control slots. In this way signalling and control information may be received. When not operating in the energy saving mode, the battery powered communication device operates in a second mode (i.e., a fast access mode) to monitor both of the control slots (404).

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