System, method, and computer-readable medium for user equipment handoff within an IP-femtocell network
First Claim
1. A method, comprising:
- measuring a first radio interface quality between a user equipment and a first femtocell;
measuring a second radio interface quality between the user equipment and a second femtocell;
transmitting an indication of the second radio interface quality from the second femtocell to the first femtocell; and
invoking a handoff procedure from the first femtocell to the second femtocell;
wherein the first femtocell and the second femtocell are connected to an internet via a same internet access device, wherein the internet access device is a packet-switched backhaul, wherein the first femtocell and the second femtocell communicate with one another via the packet-switched backhaul without communicating via the internet, and wherein each of the first femtocell and the second femtocell include a respective integrated base station controller, base transceiver station and Session Initiation Protocol (SIP) adapter that supports a SIP client pool and provides conversion of call set-up functions to SIP client set-up functions.
6 Assignments
0 Petitions
Accused Products
Abstract
A system, method, and computer readable medium for provisioning communication services by an IP-based femtocell network is provided. Service of a user equipment may be transferred from one femtocell to another femtocell via a femtocell handoff procedure. Femtocell systems of the femtocell network perform link quality measurements and may distribute the link quality measurements to neighbor femtocells. A femtocell system may periodically evaluate the link quality with the user equipment. If an evaluation is made that the user equipment needs to be transferred to another site, the servicing femtocell site may evaluate the most recent link quality measurements received from neighboring femtocell sites and select a femtocell site for handoff. In the event that the femtocell network is deployed in an area serviced by a macrocellular network, handoff routines may provide preference for transferring the user equipment to a target femtocell system rather than a macrocell site.
13 Citations
20 Claims
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1. A method, comprising:
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measuring a first radio interface quality between a user equipment and a first femtocell; measuring a second radio interface quality between the user equipment and a second femtocell; transmitting an indication of the second radio interface quality from the second femtocell to the first femtocell; and invoking a handoff procedure from the first femtocell to the second femtocell; wherein the first femtocell and the second femtocell are connected to an internet via a same internet access device, wherein the internet access device is a packet-switched backhaul, wherein the first femtocell and the second femtocell communicate with one another via the packet-switched backhaul without communicating via the internet, and wherein each of the first femtocell and the second femtocell include a respective integrated base station controller, base transceiver station and Session Initiation Protocol (SIP) adapter that supports a SIP client pool and provides conversion of call set-up functions to SIP client set-up functions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-transitory computer-readable medium having computer-executable instructions for execution by a processing system, the computer-executable instructions for:
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measuring a first radio interface quality between a user equipment and a first femtocell; measuring a second radio interface quality between the user equipment and a second femtocell; transmitting an indication of the second radio interface quality from the second femtocell to the first femtocell; and invoking a handoff procedure from the first femtocell to the second femtocell; wherein the first femtocell and the second femtocell are connected to an internet via a same internet access device, wherein the internet access device is a packet-switched backhaul, wherein the first femtocell and the second femtocell communicate with one another via the packet-switched backhaul without communicating via the internet, and wherein each of the first femtocell and the second femtocell include a respective integrated base station controller, base transceiver station and Session Initiation Protocol (SIP) adapter that supports a SIP client pool and provides conversion of call set-up functions to SIP client set-up functions. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A system, comprising:
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a packet-switched network with which a user equipment has a session initiation protocol service subscription; an Internet Protocol multimedia subsystem communicatively interfaced with the packet-switched network; and a femtocell network including a first femtocell and a second femtocell, wherein the femtocell network; measures a second radio interface quality between the user equipment and a second femtocell; transmits an indication of the second radio interface quality from the second femtocell to the first femtocell; and invokes a handoff procedure from the first femtocell to the second femtocell; wherein the first femtocell and the second femtocell are connected to an internet via a same internet access device, wherein the internet access device is a packet-switched backhaul, wherein the first femtocell and the second femtocell communicate with one another via the packet-switched backhaul without communication via the internet, and wherein each of the first femtocell and the second femtocell include a respective integrated base station controller, base transceiver station and Session Initiation Protocol (SIP) adapter that supports a SIP client pool and provides conversion of call set-up functions to SIP client set-up functions. - View Dependent Claims (17, 18, 19, 20)
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Specification