Methods and apparatus for voice domain operation
First Claim
1. A method for a user equipment (UE), comprising:
- determining, at the UE, that a first Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) network is not preferred for voice service based on receiving a response message to a NAS message via the first E-UTRA network, wherein the response message to the Non-Access Stratum (NAS) message comprises an indication that no voice service is available;
storing, at the UE, an identification of a first public land mobile network (PLMN) in a list of non-preferred PLMNs, wherein the first PLMN is associated with the first E-UTRA network that is not preferred for voice service, and the list of non-preferred PLMNs includes identifications for PLMNs where no voice services are available; and
avoiding, at the UE, selecting of a second E-UTRA network in response to an identification of the second E-UTRA network matching an identification in the list of non-preferred PLMNs.
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Abstract
Methods and apparatus for voice domain operation are described herein. One example method includes determining that an Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) network is not preferred for voice service based on receiving a response message to a NAS message via the E-UTRA network, wherein the response message to the Non-Access Stratum (NAS) message comprises an indication that no voice service is available, storing an identification of a first public land mobile network (PLMN), wherein the first PLMN is associated with the E-UTRA network that is not preferred for voice service, and avoiding selection of a second PLMN'"'"'s E-UTRA network when an identification of the second PLMN matches the identification of the first PLMN.
81 Citations
20 Claims
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1. A method for a user equipment (UE), comprising:
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determining, at the UE, that a first Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) network is not preferred for voice service based on receiving a response message to a NAS message via the first E-UTRA network, wherein the response message to the Non-Access Stratum (NAS) message comprises an indication that no voice service is available; storing, at the UE, an identification of a first public land mobile network (PLMN) in a list of non-preferred PLMNs, wherein the first PLMN is associated with the first E-UTRA network that is not preferred for voice service, and the list of non-preferred PLMNs includes identifications for PLMNs where no voice services are available; and avoiding, at the UE, selecting of a second E-UTRA network in response to an identification of the second E-UTRA network matching an identification in the list of non-preferred PLMNs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A user equipment configured to:
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determine that a first Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access (E-UTRA) network is not preferred for voice service based on receiving a response message to a NAS message via the first E-UTRA network, wherein the response message to the Non-Access Stratum (NAS) message comprises an indication that no voice service is available; store an identification of a first public land mobile network (PLMN) in a list of non-preferred PLMNs, wherein the first PLMN is associated with the first E-UTRA network that is not preferred for voice service, and the list of non-preferred PLMNs includes identifications for PLMNs where no voice services are available; and avoid selection of a second E-UTRA network in response to an identification of the second E-UTRA network matching an identification in the list of non-preferred PLMNs. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification