Mobile telephone switching office
First Claim
1. A mobile telephone switching office for switching calls among landline subscribers over landline telephone lines and mobile subsribers over a plurality of cellular radiotelephone voice channels, said mobile telephone switching office including:
- A. switch means for performing switching operations among said telephone lines and a plurality of trunk lines;
B. central office processing means for controlling said switch means to provide voice paths between respective lines through said switch means in response to mobile call progress messages and for generating mobile call status messages in response to the status of a call involving a mobile operator, at least one of said mobile call status messages being a termination request message;
C. at least one cell site means connected to at least one of said trunk lines and including;
i. voice transceiving means for generating signals for transmission over said voice channels in response to voice signals from said trunk lines and for receiving signals from said voice channels and generating voice signals for transmission over said trunk lines;
ii. mobile message receiving means for receiving mobile request messages from said mobile subscribers over a paging channel, at least one of said mobile request messages being an origination message;
iii. message transfer means for generating mobile control messages for transfer to said central office processing means and for receiving mobile call status messages from said central office processing means; and
iv. control means for selecting a voice channel and a trunk to carry voice signals between said mobile subscriber and said switch means in response to the receipt of an origination message or a termination message.
2 Assignments
0 Petitions
Accused Products
Abstract
A mobile telephone switching office for switching telephone calls among landline subscribers and mobile subscribers, the office controlling the call origination, termination and release of call from both the landline and the mobile subscribers, and providing a separation between the elements associated with each function for regulatory purposes. The mobile telephone switching office includes a time slot interchange mobile switch network for switching voice information among landline and mobile subscribers. A call control processor controls the switch network. Calls with a mobile subscriber are controlled by the cell site through a serving area controller, which transfers control messages between one or more cell sites to which it is connected and the call control processor. The serving area controller maintains records of the mobile voice channels available through the cell sites connected to it and the mobile calls taking place at any given time.
-
Citations
7 Claims
-
1. A mobile telephone switching office for switching calls among landline subscribers over landline telephone lines and mobile subsribers over a plurality of cellular radiotelephone voice channels, said mobile telephone switching office including:
-
A. switch means for performing switching operations among said telephone lines and a plurality of trunk lines; B. central office processing means for controlling said switch means to provide voice paths between respective lines through said switch means in response to mobile call progress messages and for generating mobile call status messages in response to the status of a call involving a mobile operator, at least one of said mobile call status messages being a termination request message; C. at least one cell site means connected to at least one of said trunk lines and including; i. voice transceiving means for generating signals for transmission over said voice channels in response to voice signals from said trunk lines and for receiving signals from said voice channels and generating voice signals for transmission over said trunk lines; ii. mobile message receiving means for receiving mobile request messages from said mobile subscribers over a paging channel, at least one of said mobile request messages being an origination message; iii. message transfer means for generating mobile control messages for transfer to said central office processing means and for receiving mobile call status messages from said central office processing means; and iv. control means for selecting a voice channel and a trunk to carry voice signals between said mobile subscriber and said switch means in response to the receipt of an origination message or a termination message. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification