METHOD AND APPARATUS OF MEASUREMENT MECHANISM AND EFFICIENT PAGING AND BROADCASTING SCHEME IMPLEMENTATION IN MBMS DEDICATED CELL OF LTE SYSTEMS
First Claim
1. A method for paging employed by a long-term evolution (LTE) node, the method comprising:
- sending paging indicators (PIs) in a specific sub-frame of each long-term evolution (LTE) frame to indicate to wireless transmitter receiver units (WTRUs) a presence of an incoming call for a WTRU identified in the paging indicator; and
sending a paging record in an LTE frame following the frame containing the PI for the WTRU to provide instructions to the identified WTRU.
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Accused Products
Abstract
A WTRU configured to receive a multicast, a unicast or mixed signal. A multimedia signal may be a Multimedia Broadcast Multicast Signal (MBMS). The WTRU switches between an MBMS and a mixed signal and determines optimal time to switch between the MBMS and mixed signal. The WTRU switches between receiving the MBMS and mixed signal in an adaptive or semi-static pattern. A flat broadcast channel (BCH) structure in an MBMS dedicated cell is provided, eliminating need for a dedicated broadcast channel (D-BCH). An MBMS-dedicated cell uses a single paging channel for both paging-indicators and paging-record-blocks. A system information broadcast indicates flexible resource usage and paging-record-block limits. Tracking area (TA)/cell association is provided for an MBMS-dedicated cell and geographically co-located non-MBMS-dedicated cells. MBMS-dedicated cell system information is broadcast to regulate WTRU operation while receiving MBMS within said cell. Generic Access Profile (GAP) definitions is part of system information.
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Citations
44 Claims
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1. A method for paging employed by a long-term evolution (LTE) node, the method comprising:
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sending paging indicators (PIs) in a specific sub-frame of each long-term evolution (LTE) frame to indicate to wireless transmitter receiver units (WTRUs) a presence of an incoming call for a WTRU identified in the paging indicator; and sending a paging record in an LTE frame following the frame containing the PI for the WTRU to provide instructions to the identified WTRU. - View Dependent Claims (2, 3, 4)
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5. A method for use by a multimedia broadcast multicast services (MBMS) dedicated cell, comprising:
sending paging indicators (PIs) and paging record blocks to WTRUs over a single paging channel (PCH) and employing a different channel for paging unicast MBMS service, the paging channel being configured to convey system change information to the WTRUs. - View Dependent Claims (6, 7, 8, 9)
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10. A method for use by a multimedia, broadcast, multicast service (MBMS) cell comprising:
sending a uniform discontinuous reception (DRX) cycle length assignment provided as part of system information to avoid use of a current DRX cycle assigned to the WTRU at a radio resource control (RRC) connection time to even a paging load distribution.
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11. A method for use in an arrangement wherein at least one MBMS-dedicated-cell is provided in a Multimedia Broadcast Multicast Service synchronized network (MBMSFN) and having at least one non-MBMS-dedicated cell geographically co-located to said at least one MBMS-dedicated cell in said MBMSFN, comprising:
assigning a given TA-ID to the MBMS-dedicated cell geographically co-located with the at least one non-MBMS-dedicated cell and assigning another TA-ID different from said given TA-ID to the geographically co-located non-MBMS-dedicated cells to reduce unnecessary paging overhead. - View Dependent Claims (12)
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13. A method employed for reducing paging overhead to WTRUs in a multimedia broadcast multicast service synchronized transmission network (MBMSFN) having a plurality of MBMS-dedicated cells, and a plurality of non-MBMS-dedicated cells geographically co-located with at least one of said MBMS-dedicated cells, comprising:
assigning a TA-ID to the at least one MBMS-dedicated cell co-located with said non-MBMS-dedicated cells and another TA-ID to the non-MBMS-dedicated cells.
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14. A method employed by a WTRU supported by dedicated MBMS-service from an MBMS-dedicated cell, comprising:
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performing incoming paging monitoring only in a cell currently supporting the WTRU and under the MBMS-service target area (TA); performing MBMS measurements to cells in the MBMS-service TA; performing regular measurements to cells in a regular TA; and performing non-MBMS operations with only one non-MBMS-dedicated cell under the regular TA which is geographically co-located with MBMS-dedicated cell.
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15. A method employed by a network having MBMS-dedicated cells and non-MBMS-dedicated cells for providing Generic Access Profile (GAP) scheduling information as part of MBMS-services to at least one WTRU receiving MBMS-services, comprising:
providing the GAP to the WTRU to perform non-MBMS operations in any non-MBMS cell, the GAP scheduling information including a beginning frame number, a length in units of frames and a repetition period length in terms of frames.
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16. A method employed by a WTRU serviced by an MBMS-dedicated cells for performing measurement activities, comprising:
measuring MBMS reception quality on the MBMS-dedicated cell by way of one of a retrieved state reply (RSRP) and block error rate (BLER). - View Dependent Claims (17, 18, 19, 20)
- 21. A wireless transmit/receive unit (WTRU) configured to receive a multimedia signal from a Long-Term-Evolution system, said signal periodically including an instruction message.
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42. A Long-Term-Evolution (LTE) network for providing tracking area (TA) information to a WTRU, comprising:
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(a) determining at least one of mobility, trajectory and cell location of the WTRU; and (b) sending TA paging information based on determinations obtained at step (a). - View Dependent Claims (43)
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44. A WTRU operating in Long-Term-Evolution (LTE) being configured to:
- provide at least one of mobility, trajectory and cell location of the WTRU to the network;
receive tracking area (TA) information from the network; and measure cells in the TA responsive the TA information.
- provide at least one of mobility, trajectory and cell location of the WTRU to the network;
Specification