Cellular telephone with datagram and dispatch operation

Details Cellular telephone with datagram and dispatch operation Cellular telephone with datagram and dispatch operation

H - Electricity

04

L

H04L 12/46 (2006.01) G10L 19/00 (2006.01) H04B 7/26 (2006.01) H04L 29/06 (2006.01) H04Q 7/24 (2006.01) H04Q 7/22 (2006.01) H04Q 7/28 (2006.01) H04Q 7/30 (2006.01)

Patent

CA 2093843

CELLULAR TELEPHONE WITH DATAGRAM AND DISPATCH OPERATION ABSTRACT OF THE DISCLOSURE A cellular system supports dispatch and datagram operations. The architecture of a conventional cellular system, such as the GSM system, is modified by adding a local area network (TIL) where nodes on the network include various base switching controllers (BSC). The BSC has a Switching Interface Module (SIM) which provides an interface to the TIL. The TIL may also include one or more gateways (40) to landline based networks. The datagram operation uses an appropriate gateway to complete a data path which includes an RF segment to or from the BSC. Dispatch operations provide for switching by the BSC so that switching is at a level below the Mobile switching Center (MSC). For example, compressed voice traffic received by the BSC may be transmitted over the TIL to another BSC from where it is sent over an RF segment to a mobile receiver (MS).

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