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公开(公告)号：US20230087004A1
公开(公告)日：2023-03-23
申请号：US18051264
申请日：2022-10-31
申请人： T-Mobile USA, Inc.
发明人： Suliman Albasheir , Boris Antsev , Christopher H. Joul , Rahul Pal , Suresh Thanneeru , Karunakalage Viraj Rakitha Silva , Salvador Mendoza , Rushabhkumar Patel
摘要： Systems, devices, and techniques described herein relate to migrating a communication session from a path including a stressed user plane function (UPF) to a path including a replacement UPF. A communication session may traverse a first path including the first UPF. After establishing the communication session, the first UPF may be determined to be stressed. In response, the communication session can be proactively migrated to a second path including a second UPF. According to various implementations, the existing communication session can be maintained during the migration, thereby substantially eliminating interruptions caused by the stressed first UPF.
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公开(公告)号：US11611927B2
公开(公告)日：2023-03-21
申请号：US17105323
申请日：2020-11-25
申请人： T-Mobile USA, Inc.
摘要： A telecommunication network associated with a wireless telecommunication provider can be configured to select user-plane functions (UPFs) for a user equipment (UE) in a network, and the handover of subscriber sessions. According to some configurations, a nearest UPF to the UE can be picked to service the UE. Choosing the nearest UPF may reduce latency to the UE when sending and receiving packets through a cellular network, such as a 5G network. Subscriber sessions can be handed over across multiple UPFs based on mobility of the UE. Subscriber sessions may be anchored on UPFs located either on edge locations or centralized data centers. Because of mobility of subscribers from a first location (e.g., x) to a second location (e.g., y), a subscriber's session can be moved from one user plane node to another user plane node seamlessly.
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公开(公告)号：US11490318B2
公开(公告)日：2022-11-01
申请号：US17069481
申请日：2020-10-13
申请人： T-Mobile USA, Inc.
发明人： Suliman Albasheir , Boris Antsev , Christopher H. Joul , Rahul Pal , Suresh Thanneeru , Karunakalage Viraj Rakitha Silva , Salvador Mendoza , Rushabhkumar Patel
摘要： Systems, devices, and techniques described herein relate to migrating a communication session from a path including a stressed user plane function (UPF) to a path including a replacement UPF. A communication session may traverse a first path including the first UPF. After establishing the communication session, the first UPF may be determined to be stressed. In response, the communication session can be proactively migrated to a second path including a second UPF. According to various implementations, the existing communication session can be maintained during the migration, thereby substantially eliminating interruptions caused by the stressed first UPF.
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公开(公告)号：US11089527B2
公开(公告)日：2021-08-10
申请号：US16047131
申请日：2018-07-27
申请人： T-Mobile USA, Inc.
发明人： Kun Lu , Boris Antsev , Terri Brooks , Egil Gronstad , John Humbert , Alan Denis MacDonald , Salvador Mendoza , Scott Francis Migaldi , Gary Jones , Christopher H. Joul , Jun Liu , Ming Shan Kwok , Karunakalage Viraj Rakitha Silva , Neng-Tsann Ueng
摘要： An access network can allocate a bearer for a network service associated with a quality-of-service (QoS) value (QV) and a retention-priority value (RPV), and determine a bearer ID for the service based on the QV, the RPV, and a supplemental priority value (SPV) different from the QV and from the RPV. Upon handover of a terminal, session(s) carried by a bearer allocated by the terminal can be terminated. That bearer can be selected using IDs of the bearers and a comparison function that, given two bearer IDs, determines which respective bearer should be terminated before the other. Upon handover of a terminal to an access network supporting fewer bearers per terminal than the terminal has allocated, a network node can select a bearer based on respective QVs and RPVs of a set of allocated bearers. The network node can deallocate the selected bearer.
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公开(公告)号：US11057811B2
公开(公告)日：2021-07-06
申请号：US16221314
申请日：2018-12-14
申请人： T-Mobile USA, Inc.
发明人： Kun Lu , Ming Shan Kwok , Salvador Mendoza , Alan Denis MacDonald , Jun Liu , Egil Gronstad , Karunakalage Viraj Rakitha Silva , Suresh Thanneeru
摘要： When using Dual Connectivity in a Non-Standalone Architecture cellular communication system, a data bearer may be steered through a Long-Term Evolution (LTE) base station or a New Radio (NR) base station. Each bearer is assigned a combination of Quality of Service (QoS) values corresponding to the service type that the bearer is supporting. For example, each different service type may be assigned a combination of a QoS Class Identifier and an Allocation and Retention Priority parameter value. Each combination is also associated with a radio access technology such as LTE radio access technology or NR radio access technology. When NR communications are available between a network core and a communication device, and if the bearer's combination of QoS values has been associated with NR, bearer data is routed through an NR base station. Otherwise, the bearer data is routed through the LTE base station.
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公开(公告)号：US11102691B2
公开(公告)日：2021-08-24
申请号：US16667712
申请日：2019-10-29
申请人： T-Mobile USA, Inc.
发明人： Egil Gronstad , Karunakalage Viraj Rakitha Silva , Brian Allan Olsen , Kun Lu , Ming Shan Kwok , Salvador Mendoza , John Humbert , Jun Liu , Alan Denis MacDonald , Christopher H. Joul , Neng-Tsann Ueng
摘要： A first access node of a first wireless access network receives, via a first entry node of the first network, a service-request message from a terminal registered with the first network. The first access node requests first network-capacity information associated with the first wireless access network from the first entry node, and second network-capacity information associated with a second wireless access network from a second access node of the second network. The first access node selects a target access network based on the service-request message and the first and second network-capacity information. The first access node, in response to a selection of the first wireless access network, sends a service-reply message to the first entry node. The first access node, in response to a selection of the second wireless access network, triggers a handover of the terminal to the second wireless access network.
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公开(公告)号：US10813035B2
公开(公告)日：2020-10-20
申请号：US16363947
申请日：2019-03-25
申请人： T-Mobile USA, Inc.
发明人： Suliman Albasheir , Boris Antsev , Christopher H. Joul , Rahul Pal , Suresh Thanneeru , Karunakalage Viraj Rakitha Silva , Salvador Mendoza , Rushabhkumar Patel
摘要： Systems, devices, and techniques described herein relate to migrating a communication session from a path including a stressed user plane function (UPF) to a path including a replacement UPF. A communication session may traverse a first path including the first UPF. After establishing the communication session, the first UPF may be determined to be stressed. In response, the communication session can be proactively migrated to a second path including a second UPF. According to various implementations, the existing communication session can be maintained during the migration, thereby substantially eliminating interruptions caused by the stressed first UPF.
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公开(公告)号：US20190320474A1
公开(公告)日：2019-10-17
申请号：US16218075
申请日：2018-12-12
申请人： T-Mobile USA, Inc.
发明人： Kun Lu , Jun Liu , Christopher H. Joul , Karunakalage Viraj Rakitha Silva , Suresh Thanneeru , Salvador Mendoza , Rahul Pal , Egil Gronstad , Alan Denis MacDonald , Kunal Barawkar
摘要： A core network element, such as a PCRF and/or an MME, can determine that a Quality of Service (QoS) Class Indicator (QCI) of particular bearer set up between the core network and user equipment (UE) should be changed to a new QCI. When a control node, such as the MME, determines that no teardown delay conditions are met, the control node can send a bearer release message to a base station that instructs the base station to tear down all bearers for the UE, even if they are in use. In a dual connectivity arrangement, such as a E-UTRAN New Radio-Dual Connectivity (EN-DC) configuration, the base station can instruct a secondary base station to also release all bearers for the UE. The control node can instruct the base station to reestablish the particular bearer with the new QCI when the base station reestablishes the bearers for the UE.
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公开(公告)号：US20190223070A1
公开(公告)日：2019-07-18
申请号：US16047131
申请日：2018-07-27
申请人： T-Mobile USA, Inc.
发明人： Kun Lu , Boris Antsev , Terri Brooks , Egil Gronstad , John Humbert , Alan Denis MacDonald , Salvador Mendoza , Scott Francis Migaldi , Gary Jones , Christopher H. Joul , Jun Liu , Ming Shan Kwok , Karunakalage Viraj Rakitha Silva , Neng-Tsann Ueng
CPC分类号： H04W36/14 , H04W36/30 , H04W72/085 , H04W72/10
摘要： An access network can allocate a bearer for a network service associated with a quality-of-service (QoS) value (QV) and a retention-priority value (RPV), and determine a bearer ID for the service based on the QV, the RPV, and a supplemental priority value (SPV) different from the QV and from the RPV. Upon handover of a terminal, session(s) carried by a bearer allocated by the terminal can be terminated. That bearer can be selected using IDs of the bearers and a comparison function that, given two bearer IDs, determines which respective bearer should be terminated before the other. Upon handover of a terminal to an access network supporting fewer bearers per terminal than the terminal has allocated, a network node can select a bearer based on respective QVs and RPVs of a set of allocated bearers. The network node can deallocate the selected bearer.
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公开(公告)号：US20190159058A1
公开(公告)日：2019-05-23
申请号：US16141380
申请日：2018-09-25
申请人： T-Mobile USA, Inc.
摘要： Systems and methods for extended quality of service class identifier (QCI) masking are described. Subscriber accounts may be assigned an extended QCI value, which may be unsupported by a user device associated with the subscriber account. The communications network maintains a mapping between extended QCI values and standard QCI values. When a user device requests a new session with the communication network, the session may be established such that priority for the session within the communication network is based on the extended QCI value associated with the subscriber account, while the mapped standard QCI value is communicated to the user device in establishing the session.
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