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公开(公告)号：US11159582B2
公开(公告)日：2021-10-26
申请号：US16650549
申请日：2017-10-11
发明人： Jinyin Zhu , Afshin Abtin , Ralf Keller
摘要： The embodiments herein relate to terminating call handling for power saving activated user equipment. In one embodiment, there proposes a method in a IP Multimedia Subsystem Application Server, IMS-AS, for handling a terminating call for a User Equipment, UE, using power saving functionality, comprising: obtaining power saving information of the UE; handling the terminating call based on the power saving information. With the embodiments, the time and network resource for the terminating call can be saved and the user's experience can be enhanced.
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公开(公告)号：US11140598B2
公开(公告)日：2021-10-05
申请号：US15749523
申请日：2017-11-17
发明人： Ralf Keller , Afshin Abtin , Patrik Dannebro
摘要： A method of handing over a User Equipment, UE, from a first type of Radio Access Technology, RAT, to a second type of RAT, wherein said UE is attached to a core network via a Radio Access Network, RAN, utilizing said first type of RAT, said method comprising the steps of receiving, by a Mobility Management node in said core network from a network function in said core network, an indication that a particular service is to be invoked for said UE, determining, by said Mobility Management node, that said UE is to be handed over from said first type of RAT to said second type of RAT for supporting said particular service and requesting, by said Mobility Management node, said RAN to hand over said UE from said first RAT to said second RAT.
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公开(公告)号：US10595250B2
公开(公告)日：2020-03-17
申请号：US15539769
申请日：2017-06-13
发明人： Ralf Keller , Afshin Abtin , Patrik Dannebro
摘要： The application relates to a method for operating a first radio access node 100 of a first packet switched mobile communications network. The first radio access node receives a request for establishing a data packet session requiring a defined quality of service and determines that the data packet session cannot be handled by the first packet switched communications network. The first radio access node triggers a hand over to a second packet switched mobile communications network based on the determining and transmits an indication towards a mobile entity (200) involved in the data packet session indicating that a resource for the data packet session will be available when the handover is completed.
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公开(公告)号：US10027719B2
公开(公告)日：2018-07-17
申请号：US15324345
申请日：2014-07-07
发明人： Håkan Österlund , Afshin Abtin , Magnus Hallenstål
IPC分类号： H04W4/00 , H04L29/06 , H04W36/00 , H04W36/08 , H04W36/18 , H04W36/36 , H04W36/14 , H04W80/04
摘要： One aspect includes a method of operating a user terminal adapted for wireless telecommunications using any of a plurality of different radio access technologies including a Circuit Switched, CS, access and a Packet Switched, PS access. The PS access includes access via a Long Term Evolution, LTE, network and WiFi access via a Wireless Local Area Network, WLAN. The method includes: (i) making a determination to switch from a PS LTE access to a WiFi access, (ii) switching to WiFi access, and (iii) ignoring or rejecting a command received to hand over to a CS access. Other aspects include a user terminal, a telecommunications network entity, and a method of operating a telecommunications network entity.
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公开(公告)号：US20220124869A1
公开(公告)日：2022-04-21
申请号：US17423752
申请日：2020-01-09
发明人： Ralf Keller , Afshin Abtin , Christer Gustafsson , Peter Ramle
摘要： Systems and methods are disclosed for service request triggered fallback for an emergency service in a cellular communications system. Embodiments of a method performed by a wireless device for redirecting from a first wireless communication system to a second wireless communication system after having performed a service request in the first wireless communication system for an emergency call are also disclosed. In some embodiments, the method comprises transmitting a connection request message to a base station in the second wireless communication system as part of a connection establishment procedure whereby the wireless device establishes a connection to the second wireless communication system, the connection request message comprising an indication that a cause of connection establishment is an emergency. In this manner, the base station can provide emergency treatment for the connection request. Corresponding embodiments of a wireless device are also disclosed.
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公开(公告)号：US20200351313A1
公开(公告)日：2020-11-05
申请号：US16083950
申请日：2017-11-21
发明人： Jinyin Zhu , Afshin Abtin , Ralf Keller
摘要： A method for registering a User Equipment, UE, with low access priority in an Internet Protocol based Multimedia Subsystem, IMS, network said method comprising the steps of receiving, by a Proxy-Call Serving Control Function, P-CSCF node comprised by said IMS network, a Session Initiation Protocol, SIP, Register message for registering said UE in said IMS network, determining, by said P-CSCF node, that said SIP Register message comprises an indication that said UE is using a low access priority, wherein said low access priority indicates at least a reduced priority for said UE for accessing network resources, and establishing, by said P-CSCF node, said registration of said UE with said determined low access priority indication. Complementary methods and devices for performing a method according to the invention are also presented herein.
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公开(公告)号：US20190007877A1
公开(公告)日：2019-01-03
申请号：US15749523
申请日：2017-11-17
发明人： Ralf Keller , Afshin Abtin , Patrik Dannebro
摘要： A method of handing over a User Equipment, UE, from a first type of Radio Access Technology, RAT, to a second type of RAT, wherein said UE is attached to a core network via a Radio Access Network, RAN, utilizing said first type of RAT, said method comprising the steps of receiving, by a Mobility Management node in said core network from a network function in said core network, an indication that a particular service is to be invoked for said UE, determining, by said Mobility Management node, that said UE is to be handed over from said first type of RAT to said second type of RAT for supporting said particular service and requesting, by said Mobility Management node, said RAN to hand over said UE from said first RAT to said second RAT.
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公开(公告)号：US10009830B2
公开(公告)日：2018-06-26
申请号：US14899302
申请日：2013-06-17
发明人： Ralf Keller , Afshin Abtin , Magnus Hallenstål , Stefan Rommer
IPC分类号： H04W48/04 , H04W48/08 , H04L29/06 , H04L29/08 , H04W8/20 , H04W36/00 , H04W76/16 , H04W8/04 , H04W8/08 , H04W8/10 , H04W8/22 , H04W60/04 , H04W84/12
CPC分类号： H04W48/08 , H04L65/1016 , H04L65/1066 , H04L67/143 , H04W8/04 , H04W8/087 , H04W8/10 , H04W8/205 , H04W8/22 , H04W36/0022 , H04W36/14 , H04W60/04 , H04W76/16 , H04W84/12
摘要： A first network node controls WLAN accesses and a second network node controls cellular network accesses. The first network node (NN) records a time of a last radio contact event of a user equipment (UE) with respect to a WLAN access controlled by the first NN. In response to a request from a third NN, the first NN indicates the recorded time of the last radio contact event to the third NN. The second NN records a time of a last radio contact event of the UE with respect to a cellular network access controlled by the second NN. In response to a request from the third NN, the second NN indicates the recorded time of the last radio contact event to the third NN. The third NN can use the indicated times to determine whether the UE is attached to a WLAN access or to a cellular network access.
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9.发明公开公开(公告)号：US20240236151A9
公开(公告)日：2024-07-11
申请号：US18547395
申请日：2021-03-31
发明人： Ralf Keller , Afshin Abtin , Anders Ryde , Mattias Dahlqvist
IPC分类号： H04L65/1016 , H04L65/1045 , H04L65/1063 , H04L65/1073
CPC分类号： H04L65/1016 , H04L65/1045 , H04L65/1063 , H04L65/1073
摘要： A method performed by a first IP multimedia system, IMS, node (15), for handling a network function in a communication network. The first IMS node (15) requests a first core network node (13) for at least a part of contact information of a network function instance, and receives a response from the first core network node (13) with at least the part of the contact information for the network function instance. The first IMS node (15) communicates with a second IMS node (16) or a core network node over a service based interface, based on the received part of the contact information for the network function instance.
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公开(公告)号：US20240129029A1
公开(公告)日：2024-04-18
申请号：US18277263
申请日：2021-02-26
发明人： Ralf Keller , Afshin Abtin , Sorin Surdila , Bo Burman
IPC分类号： H04B7/185
CPC分类号： H04B7/18539
摘要： A method performed by a first network node serving a first terminal when handling a call between the first terminal and a second terminal is provided. The first network node determines that the call is associated with longer than expected delays between the first and second terminals. The network node provides a Long Delay Indication to at least one of said first and second terminals to indicate said longer than expected delays in the call.
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