Network nodes, and methods performed in a wireless communication network
Embodiments herein relate a method performed by radio network node for handling communication of a UE in a wireless communication network. The radio network node is configured to determine to initiate or avoid initiation of a process for handing over communication of the UE from the radio network node of a first RAN to a second RAN based on whether the communication includes an emergency service or not, and an identity associated to the second RAN and/or the first RAN based on the target PLMN ID.
1 . A method performed by a radio network node for handling communication of a user equipment (“UE”) in a wireless communication network, the method comprising:
determining to avoid initiation of a process for handing over (“HO”) communication of the UE from the radio network node of a first radio access network (“RAN”) to a second RAN when the communication includes an emergency service based on an identity associated to the second RAN indicating that the second RAN is a public land mobile network (“PLMN”) restricted during emergency communication; and
subsequent to determining to avoid initiation of the process for HO the communication, communicating additional communications with the UE,
wherein determining to avoid initiation of the process comprises determining to avoid initiation of the process when the communication includes an emergency call based on the second RAN being associated with a different PLMN than the first RAN and is associated to a different PLMN of a different operator than the first RAN.
2 . The method of claim 1 , wherein the different PLMN is on a blacklist of PLMNs.
3 . The method of claim 1 , further comprising:
receiving a mobility restriction list (“MRL”),
wherein the MRL differentiates normal communications versus emergency communications where an emergency entry in the MRL for emergency communications indicates that HO to a certain PLMN is restricted during emergency communication, and
wherein determining to avoid initiation of the process comprises determining to avoid initiation of the process based on the MRL.
4 . The method of claim 1 , further comprising:
receiving configuration to avoid initiation of HO of emergency communication when second RAN is the public land mobile network (“PLMN”) and an emergency call is ongoing.
5 . The method of claim 1 , further comprising:
receiving an indication from the first RAN or the second RAN indicating a reason for the rejection to prevent further handover attempts.
6 . The method of claim 1 , further comprising:
communicating the communication with the UE; and
determining that the communication of the UE includes the emergency service.
7 . The method of claim 1 , wherein the different PLMN is not on a whitelist of PLMNs.
8 . A radio network node for handling communication of a user equipment (“UE”) in a wireless communication network, the radio network node comprising:
processing circuitry; and
memory coupled to the processing circuitry and having instructions stored therein that are executable by the processing circuitry to cause the radio network node to perform operations comprising:
determining to avoid initiation of a process for handing over (“HO”) communication of the UE from the radio network node of a first radio access network (“RAN”) to a second RAN when the communication includes an emergency service based on an identity associated to the second RAN indicating that the second RAN is a public land mobile network (“PLMN”) restricted during emergency communication; and
subsequent to determining to avoid initiation of the process for HO the communication, communicating additional communications with the UE,
wherein determining to avoid initiation of the process comprises determining to avoid initiation of the process when the communication includes an emergency call based on the second RAN being associated with a different PLMN than the first RAN and is associated to a different PLMN of a different operator than the first RAN.
9 . The radio network node of claim 8 , wherein the different PLMN is on a blacklist of PLMNs.
10 . The radio network node of claim 8 , the operations further comprising:
receiving a mobility restriction list (“MRL”),
wherein the MRL differentiates normal communications versus emergency communications where an emergency entry in the MRL for emergency communications indicates that HO to a certain PLMN is restricted during emergency communication, and
wherein determining to avoid initiation of the process comprises determining to avoid initiation of the process based on the MRL.
11 . The radio network node of claim 8 , the operations further comprising:
receiving configuration to avoid initiation of HO of emergency communication when second RAN is the PLMN and an emergency call is ongoing.
12 . The radio network node of claim 8 , the operations further comprising:
receiving an indication from the first RAN or the second RAN indicating a reason for the rejection to prevent further handover attempts.
13 . The radio network node of claim 8 , the operations further comprising:
communicating the communication with the UE; and
determining that the communication of the UE includes the emergency service.
14 . The radio network node of claim 8 , wherein the different PLMN is not on a whitelist of PLMNs.
15 . A non-transitory computer readable medium having instructions stored therein that are executable by processing circuitry of a radio network node to cause the radio network node to perform operations for handling communication of a user equipment (“UE”) in a wireless communication network, the operations comprising:
determining to avoid initiation of a process for handing over (“HO”) communication of the UE from the radio network node of a first radio access network (“RAN”) to a second RAN when the communication includes an emergency service based on an identity associated to the second RAN indicating that the second RAN is a public land mobile network (“PLMN”) restricted during emergency communication; and
subsequent to determining to avoid initiation of the process for HO the communication, communicating additional communications with the UE,
wherein determining to avoid initiation of the process comprises determining to avoid initiation of the process when the communication includes an emergency call based on the second RAN being associated with a different PLMN than the first RAN and is associated to a different PLMN of a different operator than the first RAN.
16 . The non-transitory computer readable medium of claim 15 , wherein the different PLMN is on a blacklist of PLMNs and/or not on a whitelist of PLMNs.
17 . The non-transitory computer readable medium of claim 15 , the operations further comprising:
receiving a mobility restriction list (“MRL”),
wherein the MRL differentiates normal communications versus emergency communications where an emergency entry in the MRL for emergency communications indicates that HO to a certain PLMN is restricted during emergency communication, and
wherein determining to avoid initiation of the process comprises determining to avoid initiation of the process based on the MRL.
18 . The non-transitory computer readable medium of claim 15 , the operations further comprising:
receiving configuration to avoid initiation of HO of emergency communication when second RAN is the PLMN and an emergency call is ongoing.
19 . The non-transitory computer readable medium of claim 15 , the operations further comprising:
receiving an indication from the first RAN or the second RAN indicating a reason for the rejection to prevent further handover attempts.
20 . The non-transitory computer readable medium of claim 15 , the operations further comprising:
communicating the communication with the UE; and
determining that the communication of the UE includes the emergency service.