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公开(公告)号：US20220360967A1
公开(公告)日：2022-11-10
申请号：US17764607
申请日：2020-10-05
申请人： IDAC HOLDINGS, INC.
发明人： Xiaoyan Shi , Michelle Perras , Samir Ferdi , Saad Ahmad
摘要： A method and apparatus where an announcing WTRU may request peer discovery from a Pro Se function, and the ProSe function may provide information associated with a monitoring WTRU to the announcing WTRU as a result of the monitoring WTRU having discovered the announcing WTRU. A discoveree WTRU may request peer discovery from a ProSe function where the ProSe function sends a unique ProSe query code to a discoverer WTRU. As a result of the discoveree WTRU detecting the ProSe query code on radio interface, the discoveree WTRU triggers a match report procedure to obtain information associated with the Discoverer WTRU.
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公开(公告)号：US10587695B2
公开(公告)日：2020-03-10
申请号：US16148642
申请日：2018-10-01
申请人： IDAC HOLDINGS, INC.
发明人： Xiaoyan Shi , Guanzhou Wang , Saad Ahmad
摘要： A wireless transmit/receive unit (WTRU) may establish one or more protocol data unit (PDU) sessions via a radio access network (RAN) node. The WTRU may transition to an inactive state. The WTRU may send a connection resume message to a RAN node that indicates a request to resume the established plurality of PDU sessions via the RAN node. The WTRU may receive a message from the RAN node. For example, the RAN node may send a message indicating a subset of the plurality of PDU sessions that are available upon resuming a connection with the RAN node. The WTRU may deactivate at least one established PDU session of the plurality of PDU sessions based on the received message from the RAN node that indicates at least one established PDU session not being included in the subset of the plurality of PDU sessions that are available.
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公开(公告)号：US20190150219A1
公开(公告)日：2019-05-16
申请号：US16310594
申请日：2017-06-30
申请人： IDAC HOLDINGS, INC.
发明人： Guanzhou Wang , Saad Ahmad , Mahmoud Watfa , Ulises Olvera-Hernandez , Xiaoyan Shi , Bartosz Balazinski
摘要： A method and a system are disclosed for providing session continuity in a 5G system. A wireless transmit receive unit (WTRU) may receive, from a session management function (SMF), a first Non-Access Stratum (NAS) message indicating a Packet Data Unit (PDU) session re-establishment. Upon receiving the first NAS message, the WTRU may determine an old PDU session ID based on the NAS message and generate a new PDU session ID. The WTRU may transmit a second NAS message indicating a PDU session establishment request. The second NAS message may include the old and new PDU session IDs. Upon receiving the PDU session establishment request, the SMF may determine that the old PDU session ID is associated with an existing PDU session for which the PDU session re-establishment is requested. The SMF may also determine that the new PDU session ID is associated with a new PDU session to be established.
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公开(公告)号：US20230199894A1
公开(公告)日：2023-06-22
申请号：US17925528
申请日：2021-05-21
申请人： IDAC HOLDINGS, INC.
发明人： Xiaoyan Shi , Saad Ahmad , Ulises Olvera-Hernandez
摘要： Delivery mode switching between unicast and multicast/broadcast is described. A WTRU may move from a RAN node that supports multimedia broadcast/multicast service (MBMS) session to one that does not support MBMS session, or vice versa. In order to avoid duplicated packet transmission, the unicast delivery mode may be deactivated when the WTRU decides to use multi-cast/broadcast session. When the multicast/broadcast session is not available, the WTRU may re-activate the unicast delivery mode for MBMS. For example, the PDU session for unicast delivery mode deactivation may be released and the PDU session for unicast delivery mode reactivation may be re-established. Such activity may necessitate additional signaling between WTRU and the network for PDU session establishment/release and all other services running in the PDU session may be interrupted.
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公开(公告)号：US20230199594A1
公开(公告)日：2023-06-22
申请号：US17926166
申请日：2021-05-21
申请人： IDAC HOLDINGS, INC.
CPC分类号： H04W36/08 , H04W36/0079
摘要： A method addressing handover procedure failure or cancellation includes receiving, by a remote wireless transmit/receive unit (WTRU) connected to a source NodeB, a handover command to begin a handover procedure to establish a connection with a target NodeB on a network. A method may further include, on a condition that the handover procedure fails, transmitting, by a relay TRU, a handover failure/cancellation indication to the remote WTRU and cancelling, by the remote WTRU, the handover procedure. A method may also include initiating, by the remote WTRU, a radio resource control (RRC) re-establishment procedure to connect with the source NodeB or a new NodeB.
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公开(公告)号：US20230023639A1
公开(公告)日：2023-01-26
申请号：US17774716
申请日：2020-11-06
申请人： IDAC Holdings, Inc.
发明人： Xiaoyan Shi , Samir Ferdi , Saad Ahmad , Michelle Perras , Alec Brusilovsky , Guanzhou Wang
IPC分类号： H04W12/069
摘要： Systems and methods are described herein for enabling discovery and selection of a WTRU-to-network relay by a remote WTRU and handling a WTRU-to-network relay configuration update. The WTRU-to-network relay may broadcast a service type indicating that the service type is available or conditionally available based on the WTRU-to-network relay slicing configuration. The WTRU-to-network relay may update broadcasting the service type or the indication that the service type as being conditionally available based on update of the WTRU-to-network relay slicing configuration. The WTRU-to-network relay may relay traffic between one or more distinct remote WTRUs and the core network node via a WTRU-to-network relay. The WTRU-to-network relay may reuse an existing PDU session for relay traffic or send a PDU session establishment request to network with the requested PDU session parameters depending on if the session parameters associated with an existing PDU session match the PDU session requirements of the remote WTRU.
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公开(公告)号：US20220061118A1
公开(公告)日：2022-02-24
申请号：US17517229
申请日：2021-11-02
申请人： IDAC HOLDINGS, INC.
发明人： Guanzhou Wang , Saad Ahmad , Mahmoud Watfa , Ulises Olvera-Hernandez , Xiaoyan Shi , Bartosz Balazinski
摘要： A method and a system are disclosed for providing session continuity in a 5G system. A wireless transmit receive unit (WTRU) may receive, from a session management function (SMF), a first Non-Access Stratum (NAS) message indicating a Packet Data Unit (PDU) session re-establishment. Upon receiving the first NAS message, the WTRU may determine an old PDU session ID based on the NAS message and generate a new PDU session ID. The WTRU may transmit a second NAS message indicating a PDU session establishment request. The second NAS message may include the old and new PDU session IDs. Upon receiving the PDU session establishment request, the SMF may determine that the old PDU session ID is associated with an existing PDU session for which the PDU session re-establishment is requested. The SMF may also determine that the new PDU session ID is associated with a new PDU session to be established.
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公开(公告)号：US11438953B2
公开(公告)日：2022-09-06
申请号：US16961047
申请日：2019-01-08
申请人： IDAC HOLDINGS, INC.
摘要： Methods, systems, and apparatuses for protocol data unit (PDU) session management over different access technologies (ATs) are disclosed. A wireless transmit/receive unit (WTRU) may receive a first message from a network over a first access technology. The first message may include an indication for the WTRU to reestablish resources for one or more protocol data unit (PDU) sessions over a second access technology. The WTRU may determine that a PDU session of the one or more PDU sessions is locally deactivated by the WTRU. The WTRU may determine that it is in a limited service state associated with the second access technology. The WTRU may send a second message via the first access technology. The second message may include a PDU session status information element (IE) indicating the PDU session is locally deactivated such that the network releases the PDU session.
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公开(公告)号：US20220247820A1
公开(公告)日：2022-08-04
申请号：US17725158
申请日：2022-04-20
申请人： IDAC HOLDINGS, INC.
发明人： Xiaoyan Shi , Guanzhou Wang , Saad Ahmad
IPC分类号： H04L67/141 , H04W76/20 , H04W76/34 , H04L67/143
摘要： A wireless transmit/receive unit (WTRU) may establish one or more protocol data unit (PDU) sessions via a radio access network (RAN) node. The WTRU may transition to an inactive state. The WTRU may send a connection resume message to a RAN node that indicates a request to resume the established plurality of PDU sessions via the RAN node. The WTRU may receive a message from the RAN node. For example, the RAN node may send a message indicating a subset of the plurality of PDU sessions that are available upon resuming a connection with the RAN node. The WTRU may deactivate at least one established PDU session of the plurality of PDU sessions based on the received message from the RAN node that indicates at least one established PDU session not being included in the subset of the plurality of PDU sessions that are available.
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公开(公告)号：US11343324B2
公开(公告)日：2022-05-24
申请号：US16788764
申请日：2020-02-12
申请人： IDAC HOLDINGS, INC.
发明人： Xiaoyan Shi , Guanzhou Wang , Saad Ahmad
IPC分类号： H04L29/08 , H04W76/20 , H04W76/34 , H04W84/04 , H04L67/141 , H04L67/143 , H04L67/12
摘要： A wireless transmit/receive unit (WTRU) may establish one or more protocol data unit (PDU) sessions via a radio access network (RAN) node. The WTRU may transition to an inactive state. The WTRU may send a connection resume message to a RAN node that indicates a request to resume the established plurality of PDU sessions via the RAN node. The WTRU may receive a message from the RAN node. For example, the RAN node may send a message indicating a subset of the plurality of PDU sessions that are available upon resuming a connection with the RAN node. The WTRU may deactivate at least one established PDU session of the plurality of PDU sessions based on the received message from the RAN node that indicates at least one established PDU session not being included in the subset of the plurality of PDU sessions that are available.
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