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公开(公告)号:US11147122B2
公开(公告)日:2021-10-12
申请号:US16496218
申请日:2017-03-22
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Xiang Xu , Dawid Koziol , Ling Yu , Vinh Van Phan
Abstract: Apparatuses and methods in a communication system, are provided. The method comprises controlling (500) communication between a first user terminal and the apparatus and the communication between a second user terminal and the apparatus, wherein the first user terminal acts as a relay by relaying data packets between the apparatus and the second user terminal; determining (502) whether the first user terminal or the transmitting end of data packets in the connection between the apparatus and the second user terminal will buffer data packets addressed to but not successfully received by the receiving end and transmitting (504) an indication regarding the determination to the first user terminal.
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公开(公告)号:US20210258244A1
公开(公告)日:2021-08-19
申请号:US17058434
申请日:2018-06-26
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Xiang Xu , Colin Kahn , Dawid Koziol
IPC: H04L12/703
Abstract: A method including receiving, by at least one integrated access and backhaul node and donor distributed unit, routing information and preference information to reach at least one mobile terminal and the at least one donor in an integrated access and backhaul node topology. The method further includes transmitting at least one link event notification, and receiving at least one link event notification. The method also includes adapting at least one of an uplink route and a downlink route based on the preference information and the at least one link event notification.
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公开(公告)号:US12041494B2
公开(公告)日:2024-07-16
申请号:US17767965
申请日:2019-10-12
Applicant: Nokia Technologies Oy
Inventor: Henri Markus Koskinen , Xiang Xu
CPC classification number: H04W36/0072 , H04W36/0061 , H04W76/30
Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of signaling reduction at handover of an IAB node. The method including sending, from a first device to a second device, a request message for a handover from the first device to the second device for a third device, the request message including a first cell configuration of the third device associated with the first device; receiving, from the second device, a response message acknowledging to the request, the response message including a resource configuration for a connection between the third device and the second device and a second cell configuration of the third device associated with the second device and sending the resource configuration to the third device. In this way, the signal overhead for the handover of an IAB node may be reduced significantly.
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公开(公告)号:US11611501B2
公开(公告)日:2023-03-21
申请号:US15733510
申请日:2019-08-16
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Xiang Xu , Esa Malkamäki , Matti Laitila , Thomas Höhne , Henri Markus Koskinen
Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive (1400) a request to create context for a migrating node and optionally at least one child node of the migrating node; allocate (1402) addresses to the migrating node and optionally the at least one child node of the migrating node; and send (1404) the addresses allocated to the migrating node and optionally the at least one child node of the migrating node, prior to the migrating node migrating from a source to a target.
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公开(公告)号:US11234214B2
公开(公告)日:2022-01-25
申请号:US16096081
申请日:2016-04-28
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Xiang Xu , Devaki Chandramouli , David Navratil , Curt Wong
Abstract: Embodiments of the present disclosure provide methods, apparatus and computer program products for providing broadcast/multicast services. A method at least partially implemented at an application server comprises transmitting a resource request message to a first broadcast/multicast control node (BM-CN), requesting an allocation of broadcast resource for delivering a multimedia broadcast/multicast service (MBMS) user service; transmitting a further resource request message to a second BM-CN, requesting a further allocation of broadcast resource for delivering the MBMS user service; receiving a first response message from the first BM-CN and a second response message from the second BM-CN, the first response message indicating a first broadcast resource allocated by the first BM-CN for the MBMS user service, and the second response message indicating a second broadcast resource allocated by the second BM-CN for the MBMS user service; and indicating information about the second broadcast resource to the first BM-CN and/or indicating information about the first broadcast resource to the second BM-CN. Methods at the BM-CN and a RAN network node, and corresponding apparatus are also provided.
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公开(公告)号:US20240314546A1
公开(公告)日:2024-09-19
申请号:US18272377
申请日:2021-01-14
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Xiang Xu , llkka Antero KESKITALO , Matti Einari LAITILA , JENS GEBERT
IPC: H04W8/26 , H04W12/043 , H04W36/00 , H04W36/08
CPC classification number: H04W8/26 , H04W12/043 , H04W36/0033 , H04W36/08
Abstract: There is provided an apparatus, said apparatus including circuitry for, at a distributed unit of a relay node, determining that an internet protocol, IP, address of the distributed unit of the relay node used for communicating with a centralised unit of a donor node over a first communication path including a first donor distributed unit is to be reused after a change from the first communication path to a second communication path including a second donor distributed unit and providing an indication to the control plane of the centralised unit of the donor node that the IP address is to be reused.
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公开(公告)号:US20240015530A1
公开(公告)日:2024-01-11
申请号:US18035003
申请日:2020-11-04
Applicant: Nokia Technologies Oy
Inventor: Matti LAITILA , Xiang Xu , Henri KOSKINEN , Ilkka KESKITALO , Esa MALKAMAKI
IPC: H04W24/02
CPC classification number: H04W24/02
Abstract: Embodiments of the present disclosure relate to routing in integrated access and backhaul (IAB) communication. According to embodiments of the present disclosure, two or more IAB donors share topology information for inter IAB network routing. The IAB donors allocate addresses to IAB nodes with dual connectivity based on the topology information. In this way, it avoids address collisions when routing in the inter IAB networks.
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公开(公告)号:US11582744B2
公开(公告)日:2023-02-14
申请号:US17274478
申请日:2018-09-20
Applicant: Nokia Technologies Oy
Inventor: Xiang Xu , Colin Kahn , Mark Cudak , Ayaz Ahmed
Abstract: A method for admission control including transmitting a first admission request to a distributed unit of the IAB donor, wherein the first admission request includes information about a resource set to be established for a terminal device; receiving a first admission response from the distributed unit indicating whether one or more resources in the resource set are to be accepted; transmitting a second admission request to each of at least one IAB node including information about the resource set; receiving a second admission response from each of the at least one IAB node indicating whether one or more resources in the resource set are to be accepted; and in response to determining that at least one resource in the resource set is to be accepted, transmitting to an IAB node serving the terminal device a request for establishing a context of the terminal device including information about the resource.
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公开(公告)号:US20200029391A1
公开(公告)日:2020-01-23
申请号:US16496218
申请日:2017-03-22
Applicant: NOKIA TECHNOLOGIES OY
Inventor: Xiang Xu , Dawid Koziol , Ling Yu , Vinh Van Phan
Abstract: Apparatuses and methods in a communication system, are provided. The method comprises controlling (500) communication between a first user terminal and the apparatus and the communication between a second user terminal and the apparatus, wherein the first user terminal acts as a relay by relaying data packets between the apparatus and the second user terminal; determining (502) whether the first user terminal or the transmitting end of data packets in the connection between the apparatus and the second user terminal will buffer data packets addressed to but not successfully received by the receiving end and transmitting (504) an indication regarding the determination to the first user terminal.
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公开(公告)号:US20190182713A1
公开(公告)日:2019-06-13
申请号:US16324665
申请日:2017-07-31
Applicant: Nokia Technologies Oy
Inventor: Srinivasan Selvaganapathy , Xiang Xu , Tsunehiko Chiba
Abstract: Disclosed is a method in a mobile network providing dual connectivity with local caching at access point. The method comprises a master access node (MeNB) and a secondary access node (SeNB). The master access node and the secondary access node exchange cache capability and cache content information based on which the master access node configures a secondary cell group bearer. Packets received at the secondary access node comprising a request for cacheable content are forwarded to the master access node for content retrieval if the content is not available at the local cache of the secondary access node. Other packets are forwarded directly to a serving gateway. The invention relates also to an apparatus, a computer program product and a non-transitory computer-readable medium.
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