Method for transferring a data signal in a wireless communications system
First Claim
1. A method for transferring a CDMA data signal associated with a mobile communication unit from a source system to a target system, the method comprising:
- establishing a frame relay switched virtual circuit (FR SVC) transport function capability in the source system, and generating a plurality of parameters related thereto;
determining, by the source system, that the mobile communication unit requires a transfer of the CDMA data signal from the source system to the target system;
forwarding a message from the source system to the target system to transfer the CDMA data signal from the source system to the target system, the message comprising the plurality of parameters;
converting, based on the plurality of parameters, the CDMA data signal into a FR SCV format by the target system, forming a frame relay data signal; and
routing the frame relay data signal to an inter working function element (IWF) of the source system via the target system.
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Accused Products
Abstract
The method of transferring a CDMA data signal (107) associated with a mobile station (103) which operates between a source system (202) and a target system (204). The method includes establishing a frame relay switched virtual circuit (FR SVC) transport function capability in the source system (202) and, consequently generating a plurality of parameters. The method also includes determining that the mobile station (103) requires a transfer of the CDMA data signal (107) which results in forwarding a message from the source system to the target system to transfer the CDMA data signal (107), the message including the plurality of parameters. Based on the plurality of parameters, converting the CDMA data signal (107) into a FR SCV format by the target system (204), forming a frame relay data signal, which is routed via the target system (204) to an inter working function element (IWF)(214) of the source system (202).
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Citations
20 Claims
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1. A method for transferring a CDMA data signal associated with a mobile communication unit from a source system to a target system, the method comprising:
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establishing a frame relay switched virtual circuit (FR SVC) transport function capability in the source system, and generating a plurality of parameters related thereto; determining, by the source system, that the mobile communication unit requires a transfer of the CDMA data signal from the source system to the target system; forwarding a message from the source system to the target system to transfer the CDMA data signal from the source system to the target system, the message comprising the plurality of parameters; converting, based on the plurality of parameters, the CDMA data signal into a FR SCV format by the target system, forming a frame relay data signal; and routing the frame relay data signal to an inter working function element (IWF) of the source system via the target system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for completing a hard handoff of a CDMA data signal associated with a mobile communication unit in a wireless communication system from a source system comprising a source base transceiver station (BTS), a source base station controller (BSC), a source mobile switching center (MSC) a source selection distribution unit (SDU) and an inter-working function (IWF), to a target system comprising a target BTS, a target BSC, a target MSC and a target SDU, the method comprising:
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establishing a plurality of dedicated circuit links and signaling transport functions in the wireless communication system; establishing a code division multiple access (CDMA) data signal between the mobile communication unit and the source BTS via one of the plurality of signaling transport functions; implementing a frame relay switched virtual circuit (FR SVC) transport function capability between the source SDU and the IWF, enabling conversion of the CDMA data signal associated with the mobile communication unit to a FR SVC stream suitable for processing by the IWF, and enabling multiplexing of a plurality of FR SCV streams by the source system; saving a plurality of parameters by the source system, the plurality of parameters resulting from implementation of the FR SVC transport function capability; routing the CDMA data signal associated with the mobile communication unit to the IWF via the source SDU; determining, by the source BSC, that the mobile communication unit is traveling in a coverage area served by the target BSC; forwarding a handoff required message from the source system to the target system to enable a hard handoff of the CDMA data signal from the source system to the target system, the handoff required message including the plurality of parameters; and routing the CDMA data signal associated with the mobile communication signal to the IWF via the target SDU, enabling conversion of the CDMA data signal associated with the mobile communication unit to the FR SVC stream suitable for processing by the IWF. - View Dependent Claims (17, 18, 19, 20)
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Specification