Method and apparatus for selecting equivalent PLMN
AssigneeSamsung Electronics Co., Ltd.
InventorsHan Na Lim, Song Yean Cho, Sang Soo Jeong
Life of this patent
Estimating the term…
Abstract
Provided are a method and apparatus for selecting a Public Land Mobile Network (PLMN). A method for providing a PLMN list in a Mobility Management Entity (MME) may include: receiving a request from a user equipment (UE); determining whether the UE prefers Voice over Long Term Evolution (VoLTE) according to the request; and sending, when the UE prefers VoLTE, a variant equivalent PLMN list that contains, for each PLMN, information indicating whether VoLTE is supported by the PLMN or a VoLTE-support PLMN list that contains only PLMNs supporting VoLTE. Hence, the UE having a preference for VoLTE may select an equivalent PLMN supporting VoLTE in an effective manner.
Claims8
A method for providing a Public Land Mobile Network (PLMN) list in a Mobility Management Entity (MME), the method comprising:
- receiving a request including information on user equipment (UE) preference for Voice over Long Term Evolution (VoLTE) from a UE;
- determining whether the UE prefers VoLTE according to the request;
- generating the PLMN list associated with a PLMN supporting the VoLTE based on the UE preference for VoLTE and VoLTE support of an evolved Node B (eNB);
- and
- transmitting, if the UE prefers the VoLTE and the eNB serving the UE supports the VoLTE, the PLMN list associated with the PLMN supporting the VoLTE.
A method for selecting an equivalent Public Land Mobile Network (PLMN) in a user equipment (UE), the method comprising:
- transmitting a request including information on UE preference for Voice over Long Term Evolution (VoLTE) to a Mobility Management Entity (MME);
- receiving a PLMN list associated with a PLMN supporting the VoLTE;
- and
- selecting an equivalent PLMN supporting VoLTE based on the PLMN list,
- wherein the PLMN list is generated by the MME based on the UE preference for VoLTE and VoLTE support of an evolved Node B (eNB).
A method for selecting an equivalent Public Land Mobile Network (PLMN) in an evolved Node B (eNB), the method comprising:
- receiving a PLMN list associated with a PLMN supporting the VoLTE;
- selecting, if PLMN selection is needed for a UE having a preference for VoLTE, an equivalent PLMN supporting VoLTE based on the PLMN list;
- and
- sending a “handover required” message to a target eNB corresponding to the selected PLMN,
- wherein the PLMN list is generated by the MME based on the UE preference for VoLTE and VoLTE support of the eNB.
A Mobility Management Entity (MME) providing Public Land Mobile Network (PLMN) lists, comprising:
- a communication unit to receive a request including information on user equipment (UE) preference for Voice over Long Term Evolution (VoLTE) from a UE;
- and
- a control unit to determine whether the UE prefers VoLTE on the basis of the request, and generate a PLMN list associated with a PLMN supporting the VoLTE based on the UE preference for VoLTE and VoLTE support of an evolved Node B (eNB),
- wherein, if the UE prefers the VoLTE and the eNB serving the UE supports the VoLTE, the communication unit transmits the PLMN list associated with the PLMN supporting the VoLTE.
A user equipment (UE) selecting an equivalent Public Land Mobile Network (PLMN), comprising:
- a communication unit to transmit a request including information on UE preference for Voice over Long Term Evolution (VoLTE) to a Mobility Management Entity (MME) and receive a PLMN list associated with a PLMN supporting the VoLTE;
- and
- a control unit to select an equivalent PLMN supporting VoLTE based on the PLMN list,
- wherein the PLMN list is generated by the MME based on the UE preference for VoLTE and VoLTE support of an evolved Node B (eNB).
An evolved Node B (eNB) selecting an equivalent PLMN, comprising:
- a communication unit to receive a PLMN list associated with a PLMN supporting a Voice over Long Term Evolution (VoLTE);
- and
- a control unit to select, if PLMN selection is needed for a user equipment (UE) having a preference for VoLTE, an equivalent PLMN supporting VoLTE based on the PLMN list,
- wherein the communication unit sends a “handover required” message to a target eNB corresponding to the selected PLMN, and
- wherein the PLMN list is generated by the MME based on the UE preference for VoLTE and VoLTE support of the eNB.
Dependencies are inferred from the claim text.