Abstract
Methods and apparatus are described for supporting wireless transmit/receive unit (WTRU) mobility between Home (evolved) Node Bs (H(e)NBs) that are configured to communicate with a Local Gateway (L-GW). The H(e)NBs and/or L-GW may belong to one or more Local H(e)NB Networks (LHNs). A WTRU may receive services including Selected Internet Protocol (IP) Traffic Offload (SIPTO) or Local IP Access (LIPA) services from the L-GW via one or more H(e)NBs. The WTRU may continue to receive SIPTO or LIPA services after a handover to another H(e)NB that may be in communication with the same L-GW and may belong to the same LHN. The WTRU may receive information related to the LHN or the L-GW to allow continuation of SIPTO or LIPA services as the WTRU moves among H(e)NBs and/or out of the LHN. The WTRU may receive and/or maintain one or more LHN Lists.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
5G | 20/06/2019 | ISLD-201906-026 | INTERDIGITAL INC | Yes | Basis Patent |
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CN108601014A | 5G | 20/06/2019 | ISLD-201906-026 | INTERDIGITAL INC | No | Family Member | ||||
JP2018137759A | 5G | 20/06/2019 | ISLD-201906-026 | INTERDIGITAL INC | No | Family Member | ||||
US2018242213A1 | 5G | 20/06/2019 | ISLD-201906-026 | INTERDIGITAL INC | No | Family Member | ||||
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Technologies
Product
Use Cases
Services
Claim
1. A method for use in a wireless transmit/receive unit (WTRU), the method comprising:
receiving a service from a Local Gateway (L-GW) via a first base station (BS) that belongs to a Local Home Node B (HNB) Network (LHN);
maintaining an LHN list that includes information related to at least the LHN;
receiving a message that includes information related to the LHN and information indicating whether a second BS is capable of providing the service from the L-GW, wherein the second BS belongs to the LHN and is configured to communicate with the L-GW;
determining whether the second BS services a Closed Subscriber Group (CSG), to which the WTRU is a member, based on a broadcasted CSG identifier (ID) being included in a list of allowed CSG IDs stored in the WTRU;
performing a handover to the second BS based at least on the LHN list and the received message; and
receiving the service from the L-GW via the second BS.
2. The method of claim 1, wherein the service includes a Selected Internet Protocol (IP) Traffic Offload (SIPTO) service.
3. The method of claim 1, wherein the service includes a Local Internet Protocol (IP) Access (LIPA) service.
4. The method of claim 1, wherein the LHN list includes an LHN ID of the LHN.
5. The method of claim 1, wherein the LHN list includes information related to LHNs from which the WTRU prefers to receive the service.
6. The method of claim 1, wherein the LHN list includes information related to LHNs that are capable of providing a Selected Internet Protocol (IP) Traffic Offload (SIPTO) service.
7. The method of claim 1, wherein the LHN list includes information related to LHNs that are capable of providing a Local Internet Protocol (IP) Access (LIPA) service.
8. The method of claim 1, wherein the LHN list includes information related to at least one LHN that the WTRU is allowed to access.
9. The method of claim 8, wherein the at least one LHN that the WTRU is allowed to access is determined by an operator of a network.
10. The method of claim 1, wherein the LHN list includes information related to at least one of LHNs or BSs that the WTRU or a user of the WTRU approved for attachment.
11. The method of claim 1, further comprising receiving a detach request message that includes a reattach target, the reattach target indicating that the WTRU should attach to the second BS for the service received from the L-GW.
12. The method of claim 1, wherein the performing the handover further comprises determining that the second BS belongs to the LHN.
13. The method of claim 12, wherein the determining that the second BS belongs to the LHN comprises determining that information related to the LHN is included in the LHN list.
14. The method of claim 1, further comprising stopping the service received from the first BS prior to performing the handover.
15. The method of claim 1, further comprising maintaining a list of information related to BSs that the WTRU is allowed to access.
16. The method of claim 15, wherein the performing the handover is performed on a further condition that information related to the second BS is included in the list of information related to BSs.
17. A wireless transmit/receive unit (WTRU) comprising:
a receiver configured to receive a service from a Local Gateway (L-GW) via a first base station (BS), wherein the first BS belongs to a Local Home Node B (HNB) Network (LHN);
a memory configured to store an LHN list that includes information related to at least the LHN;
the receiver configured to receive a message that includes information related to the LHN and information indicating whether a second BS is capable of providing the service from the L-GW, wherein the second BS belongs to the LHN and is configured to communicate with the L-GW;
a processor configured to determine whether the second BS services a Closed Subscriber Group (CSG), to which the WTRU is a member, based on a broadcasted CSG identifier (ID) being included in a list of allowed CSG IDs stored in the WTRU;
the processor configured to perform a handover to the second BS based at least on the LHN list and the received message; and
the receiver configured to receive the service from the L-GW via the second BS.
18. A method for use in a wireless transmit/receive unit (WTRU), the method comprising:
receiving a message that includes:
a Local Home Node B (HNB) Network (LHN) ID that identifies an LHN; and
a Local Internet Protocol (IP) Access (LIPA) indication that indicates whether the LHN supports LIPA services;
selecting to a cell that belongs to the LHN on a condition that the LHN ID is included in a list of allowed LHNs stored in the WTRU and that the LIPA indication indicates that the LHN supports LIPA services;
determining whether the cell services a Closed Subscriber Group (CSG), to which the WTRU is a member, based on a broadcasted CSG identifier (ID) being included in a list of allowed CSG IDs stored in the WTRU; and
receiving a service from the cell.
19. The method of claim 18, wherein the selecting to the cell is performed on a further condition that the cell services a CSG and information related to the CSG is included in the list of allowed CSGs stored in the WTRU.
20. The method of claim 18, wherein the selecting to the cell is performed on the further condition that the cell is serviced by a base station (BS) and information related to the BS is included in a list of allowed BSs stored in the WTRU.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.