Method for Establishing a Packet Switched Call at a Dual Mode Access Terminal
First Claim
1. A method for establishing a packet switched call at an access terminal that is processing an established circuit switched call, the method comprising:
- adding a call type indication to a call setup message in a serving network, wherein the call type indication indicates that the packet switched call is requested to be setup in a packet data radio access network in the serving network;
transmitting from a mobile switching center in the serving network to a circuit switched base station in the serving network, in response to the call setup message, a message indicating that the packet switched call has been requested;
transmitting from the circuit switched base station to the access terminal a message indicating that the packet switched call has been requested;
processing at the circuit switched base station a message from the access terminal indicating that the packet switched call has been accepted;
transmitting from the circuit switched base station to the mobile switching center a message indicating that the packet switched call has been accepted; and
connecting the packet switched call.
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Accused Products
Abstract
A method for establishing a packet switched call at an access terminal, which is processing an established circuit switched call, enables a user to be informed that the packet switched call has been requested. The method comprises adding a call type indication to a call setup message in a serving network, where the call type indication indicates that the packet switched call is requested to be setup in a packet data radio access network in the serving network (step 1105). A message indicating that the packet switched call has been requested is then transmitted from a circuit switched base station to the access terminal (step 1115). A message indicating that the packet switched call has been accepted is then transmitted from the circuit switched base station to the mobile switching center (step 1125).
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Citations
15 Claims
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1. A method for establishing a packet switched call at an access terminal that is processing an established circuit switched call, the method comprising:
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adding a call type indication to a call setup message in a serving network, wherein the call type indication indicates that the packet switched call is requested to be setup in a packet data radio access network in the serving network; transmitting from a mobile switching center in the serving network to a circuit switched base station in the serving network, in response to the call setup message, a message indicating that the packet switched call has been requested; transmitting from the circuit switched base station to the access terminal a message indicating that the packet switched call has been requested; processing at the circuit switched base station a message from the access terminal indicating that the packet switched call has been accepted; transmitting from the circuit switched base station to the mobile switching center a message indicating that the packet switched call has been accepted; and connecting the packet switched call. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification