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1.发明公开公开(公告)号：US20240172328A1
公开(公告)日：2024-05-23
申请号：US18283661
申请日：2022-03-30
发明人： Jie Ling , Juying Gan , Paul Schliwa-Bertling , Alexander Vesely
摘要： A method performed by a first core network entity. The method comprises receiving a first user plane release request message from a radio access network entity or a second core network entity. The first user plane release request message comprises a request for a downlink tunnel associated with unicast of user plane data for one or more wireless devices in a multicast or broadcast session to be released. The method further comprises sending a second user plane release request message to a third core network entity. The second user plane release request message comprises a request for the downlink tunnel associated with unicast of user plane data for one or more wireless devices in a multicast or broadcast session to be released.
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2.发明申请公开(公告)号：US20200274907A1
公开(公告)日：2020-08-27
申请号：US16804857
申请日：2020-02-28
发明人： Thorsten Lohmar , Jie Ling , Jinyang Xie
摘要： Enabling a Dynamic Adaptive Streaming over HTTP (DASH) player to fetch media segments from a network may comprise the steps of (i) receiving, from said network, a manifest comprising a representation base Uniform Resource Identifier (URI) for indicating a location to said DASH player for fetching said media segments, a default representation base URI which is available in a default mode for fetching said media segments from a default content delivery network (CDN), a secondary representation base URI which is available in a secondary mode for fetching said media segments from a secondary CDN, (ii) transmitting, the manifest to said DASH player, and (iii) transmitting, to said DASH player, a ManifestModificationCommand message comprising one or more representation base URIs of any of said default representation base URI and said secondary representation base URI that are to modify a representation base URI in said manifest.
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公开(公告)号：US20190379719A1
公开(公告)日：2019-12-12
申请号：US15757586
申请日：2018-02-05
发明人： Thorsten Lohmar , Jie Ling , Jinyang Xie
摘要： A method of enabling a Dynamic Adaptive Streaming over HTTP, DASH, player to fetch media segments from a network, wherein said method comprises the steps of receiving, by a DASH Aware Network Element, DANE, middleware, from said network, a manifest, wherein said manifest comprises a representation base Uniform Resource Identifier, URI, for indicating a location to said DASH player for fetching said media segments, a default representation base URI which is available in a default mode for fetching said media segments from a default content delivery network, CDN, a secondary representation base URI which is available in a secondary mode for fetching said media segments from a secondary CDN, transmitting, by said DANE middleware, said manifest to said DASH player, transmitting, by said DANE middleware, to said DASH player, a ManifestModificationCommand message, wherein said ManifestModificationCommand message comprises one or more representation base URI's of any of said default representation base URI and said secondary representation base URI that are to modify a representation base URI in said manifest.
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4.发明申请公开(公告)号：US20210195381A1
公开(公告)日：2021-06-24
申请号：US17059323
申请日：2019-05-21
发明人： Jie Ling , Haogang XU , Wenhu Tang , Jinyang Xie , Wenliang Xu
摘要： A SC informs a communication service (CS) node (e.g., GCS AS) of a data transfer start time for the bearer (i.e., the user plane ready time for the bearer). Additionally, in some embodiments, the SC informs the communication service node (e.g., GCS AS) as to a data transfer stop time for the bearer. This provides a distinct advantage because the CS node will now have information as to when it should start (and stop) data delivery, thereby leading to a higher quality of experience (QoE) of MBMS delivery.
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公开(公告)号：US20180242387A1
公开(公告)日：2018-08-23
申请号：US15517334
申请日：2014-10-24
发明人： Ibtissam El Khayat , Jie Ling , Qi Xia , Tingyu Zhang
摘要： For managing multicast transmissions in a cellular network, a control plane module (162) of a gateway node (160) of the cellular network establishes one or more control plane sessions associated with the multicast transmissions. Further, a user plane module (164) of the gateway node (160) establishes one or more user plane sessions associated with the multicast transmissions. The control plane module (162) of the gateway node (160) indicates context information of the control plane session(s) to an external storage (175). During a failure of the control plane module (162) of the gateway node (160), the user plane module (164) of the gateway node (160) maintains the user plane session(s). After recovery from the failure of the control plane module (162) of the gateway node (160), the control plane module (162) of the gateway node receives the context information from the external storage (175) and re-establishes at least one of the more control plane session(s) on the basis of the received context information.
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公开(公告)号：US20240314523A1
公开(公告)日：2024-09-19
申请号：US18578268
申请日：2022-07-11
发明人： Juying GAN , Jie Ling , Yunjie Lu
摘要： Embodiments of the present disclosure provide methods and apparatuses for multicast/broadcast service (MBS). A method performed by at a session management function (SMF) comprises receiving a session activation notification comprising a temporary mobile group identity (TMGI) from a multicast/broadcast session management function (MB-SMF). The method further comprises finding at least one user equipment (UE) that joined a MBS session identified by the TMGI. The method further comprises sending a MBS session notification request to an access and mobility function (AMF). The MBS session notification request includes a list of the at least one UE, respective identifier of respective protocol data unit (PDU) session associated to the MBS session of the at least one UE and the TMGI.
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7.发明授权公开(公告)号：US11463845B2
公开(公告)日：2022-10-04
申请号：US17059323
申请日：2019-05-21
发明人： Jie Ling , Haogang Xu , Wenhu Tang , Jinyang Xie , Wenliang Xu
摘要： A SC informs a communication service (CS) node (e.g., GCS AS) of a data transfer start time for the bearer (i.e., the user plane ready time for the bearer). Additionally, in some embodiments, the SC informs the communication service node (e.g., GCS AS) as to a data transfer stop time for the bearer. This provides a distinct advantage because the CS node will now have information as to when it should start (and stop) data delivery, thereby leading to a higher quality of experience (QoE) of MBMS delivery.
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公开(公告)号：US10819802B2
公开(公告)日：2020-10-27
申请号：US16461869
申请日：2017-01-31
发明人： Jie Ling , Michael John Slssingar , Thorsten Lohmar , Haogang Xu
摘要： It is presented a method for enabling transmission of streaming content in a point to multipoint delivery. The method is performed in a radio network node of a cellular network. The method comprises the steps of: receiving a donor indication message from a wireless device in response to the wireless device receiving a donor command from an application server, the donor indication message indicating that the wireless device requests to be a donor device; setting up a point to multipoint delivery session; obtaining downlink data of streaming content destined for the donor device in a unicast delivery; transmitting the downlink data in a unicast delivery to the donor device; and transmitting a copy of the downlink data using the point to multipoint session, such that the downlink data can be received by a plurality of wireless devices being recipient devices.
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公开(公告)号：US10182465B2
公开(公告)日：2019-01-15
申请号：US15126306
申请日：2014-06-03
发明人： Ibtissam El Khayat , Björn Knuthammar , Jie Ling , Tobias Ljungström , Peter Werner , Qi Xia , Tingyu Zhang
摘要： A control node (140; 150) of a cellular network establishes one or more control plane sessions with a gateway node (160). On the basis of these one or more control plane sessions with the gateway node (160), the control node (140; 150) also establishes one or more control plane sessions with one or more radio access network nodes (112, 114; 122, 24) to control multicast transmissions by the one or more radio access network nodes (112, 14; 122, 124). Further, the control node (140; 150) detects a connection failure to the gateway node (160). When detecting the connection failure, the control node (140; 150) starts a first timer. Further, also the gateway node (160) detects the connection failure. When detecting the connection failure, the gateway node (160) starts a second timer. The second timer is configured with a longer duration than the first timer. In response to expiry of the first timer, the control node (140; 150) locally deletes the one or more control plane sessions with the gateway node (160) and with the one or more control plane sessions with the one or more radio access network nodes (112, 114; 122, 124). In response to expiry of the second timer, the gateway node (160) triggers a reaction to the connection failure by the gateway node (160), e.g., selection of an alternative control node.
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公开(公告)号：US09843456B2
公开(公告)日：2017-12-12
申请号：US15100753
申请日：2013-12-16
CPC分类号： H04L12/1881 , H04L12/189 , H04W4/06 , H04W68/10 , H04W88/08
摘要： A node (260) of a cellular network node sends data units to a group of base stations (200). Each data unit is configured for conveying multicast data to be sent by the base stations (200) in a synchronized manner at a starting time indicated in the data unit. For each of the data units, the node (260) determines the starting time as the sum of the time of sending the data unit from the node and an offset value. Further, the node (260) obtains feedback information from the base stations (200) of the group. The feedback information indicates a deviation of the starting time indicated in one of the data units (411) from an earliest possible time of sending the multicast data from the data unit (411) by the base stations (200) of the group. Depending on the feedback information, the node (260) adapts the offset value.
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