Method and system for integrating media independent handovers
First Claim
1. A wireless transmit/receive unit (WTRU) operable in an unlicensed mobile access (UMA) wireless communication network, the WTRU comprising:
- a processor configured to operate;
a UMA protocol stack including a physical (PHY) layer, a medium access control (MAC) layer, and a plurality of higher layers including a UMA radio resource control (UMA-RR) layer operable to facilitate mobility of the WTRU;
a cellular protocol stack including a PHY layer, a MAC layer, and a plurality of higher layers; and
a media independent handover (MIH) entity configured to communicate MIH information for mobility management between the UMA PHY layer, the UMA MAC layer, and the UMA-RR layer via an MIH service access point (MIH-SAP), wherein the MIH entity is configured to;
monitor handover related information through an information service;
collect the handover related information;
receive information from a higher layer of the cellular protocol stack via a cellular link SAP;
create a compound message containing information relating to the UMA protocol stack and the cellular protocol stack;
compare the information in the compound message to a threshold;
generate a handover trigger on a condition that the information in the compound message exceeds the threshold; and
communicate the trigger to an upper level of the UMA protocol stack on a condition that the threshold is exceeded.
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Accused Products
Abstract
A method and system for integrating media independent handover (MIH) under IEEE 802.21 and unlicensed mobile access (UMA) are disclosed. A public land mobile network (PLMN) and an unlicensed mobile access network (UMAN) are concurrently deployed. UMA is supported such that a multi-mode wireless transmit/receive unit (WTRU) may access the UMAN to receive PLMN services through the UMAN. MIH entities are included both in the WTRU and the UMAN and the MIH entity of the WTRU monitors handover events and information and generates a handover trigger for handover between the PLMN and the UMAN. The MIH entity in the UMAN interacts with the MIH entity of the WTRU to report a remote event, handover information and command.
88 Citations
25 Claims
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1. A wireless transmit/receive unit (WTRU) operable in an unlicensed mobile access (UMA) wireless communication network, the WTRU comprising:
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a processor configured to operate; a UMA protocol stack including a physical (PHY) layer, a medium access control (MAC) layer, and a plurality of higher layers including a UMA radio resource control (UMA-RR) layer operable to facilitate mobility of the WTRU; a cellular protocol stack including a PHY layer, a MAC layer, and a plurality of higher layers; and a media independent handover (MIH) entity configured to communicate MIH information for mobility management between the UMA PHY layer, the UMA MAC layer, and the UMA-RR layer via an MIH service access point (MIH-SAP), wherein the MIH entity is configured to; monitor handover related information through an information service; collect the handover related information; receive information from a higher layer of the cellular protocol stack via a cellular link SAP; create a compound message containing information relating to the UMA protocol stack and the cellular protocol stack; compare the information in the compound message to a threshold; generate a handover trigger on a condition that the information in the compound message exceeds the threshold; and communicate the trigger to an upper level of the UMA protocol stack on a condition that the threshold is exceeded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A wireless transmit/receive unit (WTRU) operable in an unlicensed mobile access (UMA) wireless communication network, the WTRU comprising:
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a processor configured to operate; a UMA protocol stack including a physical (PHY) layer, a medium access control (MAC) layer, and a plurality of higher layers including a UMA radio link control (UMA-RLC) layer operable to facilitate mobility of the WTRU; a cellular protocol stack including a PHY layer, a MAC layer, and a plurality of higher layers; and a media independent handover (MIH) entity configured to; monitor handover related information through an information service; collect the handover related information; receive information from a higher layer of the cellular protocol stack via a cellular link service access point (SAP); create a compound message containing information relating to the UMA protocol stack and the cellular protocol stack; compare the information in the compound message to a threshold; generate a handover trigger on a condition that the information in the compound message exceeds the threshold; and communicate the trigger to the UMA-RLC layer via a MIH service access point (MIH-SAP) on a condition that the threshold is exceeded. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification