公开(公告)号：US20160007235A1

公开(公告)日：2016-01-07

申请号：US14770192

申请日：2013-02-25

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Xiang XU ,  Srinivasan SELVAGANAPATHY

IPC: H04W36/00

CPC classification number: H04W36/0005 ,  H04W8/26 ,  H04W36/0072 ,  H04W36/04 ,  H04W84/045

Abstract: The present invention addresses apparatuses, methods and computer program product for enabling support of legacy user equipment and legacy network elements in small cell system for LTE and beyond systems. Each small cell uses a unique pair of Physical Cell Identifier and E-UTRAN Cell Global Identifier {PCI, ECGI} in the small cell system. In a handover preparation phase, when an enhanced eNB initiates the handover request procedure, the source eNB includes the pair of {PCI, ECGI} in the handover request message. Upon the reception of the {PCI, ECGI} from the handover request message, the associated eNB determines the target small cell based on the received pair of {PCI, ECGI}.

Abstract translation: 本发明涉及用于支持传统用户设备和用于LTE和超出系统的小型小区系统中的传统网元的设备，方法和计算机程序产品。 每个小小区在小小区系统中使用唯一的物理小区标识符和E-UTRAN小区全局标识符（PCI，ECGI）对。 在切换准备阶段，当增强型eNB启动切换请求过程时，源eNB在切换请求消息中包括一对{PCI，ECGI}。 在从切换请求消息接收到{PCI，ECGI}时，相关联的eNB基于所接收的{PCI，ECGI}对来确定目标小小区。

公开(公告)号：US20240215098A1

公开(公告)日：2024-06-27

申请号：US18555666

申请日：2021-04-25

Applicant: Nokia Solutions and Networks Oy

Inventor： Xiang XU ,  Henri Markus KOSKINEN ,  Esa Mikael MALKAMÄKI

IPC: H04W76/20 ,  H04W28/06 ,  H04W88/08

CPC classification number: H04W76/20 ,  H04W28/06 ,  H04W88/08

Abstract: Disclosed are methods for controlling message transmissions in an integrated access and backhaul network. An example method may include: determining, by a donor central unit in an integrated access and backhaul network, at least one configuration for controlling a transmission of at least one radio resource control message from a node to a child node of the node in the integrated access and backhaul network: and transmitting, by the donor central unit the at least one configuration to the node. Related apparatuses and computer readable media are also disclosed.

公开(公告)号：US20230300685A1

公开(公告)日：2023-09-21

申请号：US18005786

申请日：2020-08-05

Applicant: Nokia Solutions and Networks Oy

Inventor： Xiang XU ,  Ilkka KESKITALO ,  Henri KOSKINEN ,  Matti LAITILA ,  Ömer BULAKCI

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/0033 ,  H04W36/08

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable media for communication during inter-donor topology adaptation. A first device transmits, to a second device, first information about a first communication interface between the first device and a third device, receives, from the second device, an indication that context information associated with at least one fourth device and the first communication interface is retained, and uses the context information in communication via a second communication interface between the first device and the second device. The second device receive the first information, transmit, to the third device, a request for obtaining the context information, and receive the context information from the third device. In this way, reestablishment procedure can be simplified, and signaling over Xn interface, F1 interface and wireless backhaul can be minimized Further, latencies and service break for the terminal devices at the change of the IAB-donor can be reduced.

公开(公告)号：US20230292191A1

公开(公告)日：2023-09-14

申请号：US18005727

申请日：2020-08-05

Applicant: Nokia Solutions and Networks Oy

Inventor： Xiang XU ,  llkka KESKITALO ,  Henri KOSKINEN ,  Ömer BULAKCI ,  Guillaume DECARREAU ,  Hajo BAKKER ,  Oliver BLUME

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/0061 ,  H04W36/08

Abstract: Embodiments of the present disclosure relate to mechanism for cell identity management. According to embodiments of the present disclosure, a source device obtains identity information of a target device. The source device further obtains mapping from old cell ID to new cell ID for a migrating device and descendant devices of the migrating device. The mapping information receives from the target device or the migrating device. In this way, the device may be migrated to the target device without interrupting services of the terminal device which connects to the device.

公开(公告)号：US20200304958A1

公开(公告)日：2020-09-24

申请号：US16089620

申请日：2016-03-31

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Xiang XU ,  David NAVRATIL ,  Curt WONG

IPC: H04W4/06 ,  H04W76/40 ,  H04W12/00 ,  H04W12/10

Abstract: Systems, methods, apparatuses, and computer program products for supporting local MBMS distribution are provided. One method includes receiving, by a broadcast multicast service center (BM-SC), an activate multimedia broadcast multicast service (MBMS) bearer request message to initiate an activate multimedia broadcast multicast service (MBMS) bearer request procedure. The activate MBMS bearer request message comprises at least one of information on local MBMS distribution received from a local MBMS entity (LME), or a destination area, or a destination area and an indication that preferred delivery is via local distribution. The method may further include determining whether local distribution path will be used based on at least one of information received in the activate MBMS bearer request message, or stored information about local MBMS entities.

公开(公告)号：US20170238149A1

公开(公告)日：2017-08-17

申请号：US15502526

申请日：2014-08-08

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Xiang XU ,  Henri Markus KOSKINEN ,  Manivannan THYAGARAJAN

IPC: H04W4/06 ,  H04W24/10

CPC classification number: H04W76/40 ,  H04L12/189 ,  H04L65/1069 ,  H04L65/4076 ,  H04W4/06 ,  H04W24/10 ,  H04W84/042

Abstract: The present invention addresses methods, apparatus and computer program product for enhanced network sharing with Multimedia Broadcast Multicast Service. Thereby, a mechanism is provided that allows for the information relating to the different IDs used to be provided from a base station to a Multi-cell/multicast Coordination Entity so that the appropriate routing can be determined. The Multi-cell/multicast Coordination Entity may provide the Mobility Management Entity with this information so that control signaling can be properly distributed based on this information and the at least one MBMS SAI. According to the inven tion, a base station indicates one or more PLMN IDs for at least one MBMS SAI to the MCE.

公开(公告)号：US20160165492A1

公开(公告)日：2016-06-09

申请号：US14908768

申请日：2014-07-02

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Yixue LEI ,  Kodo SHU ,  Haitao LI ,  Seppo Ilmari VESTERINEN ,  Xiang XU

IPC: H04W36/00 ,  H04W36/08 ,  H04W76/02 ,  H04W48/16

CPC classification number: H04W36/0061 ,  H04W36/0055 ,  H04W36/0083 ,  H04W36/08 ,  H04W48/16 ,  H04W76/15 ,  H04W84/045

Abstract: Systems, methods, apparatuses, and computer program products for handling user equipment (UE) context for dual connectivity in, for example, enhanced small cell networks are provided. One method includes associating small cell identifiers that are assigned by an anchor evolved node B (eNB) with a unique cell identifier related to the anchor eNB, and reporting user equipment (UE) history information in dual connectivity mode to a target evolved node B (eNB). The UE history information comprises at least the unique cell identifier of the anchor eNB.

Abstract translation: 提供了用于处理例如增强型小型网络中的双连接的用户设备（UE）上下文的系统，方法，设备和计算机程序产品。 一种方法包括将由锚定演进节点B（eNB）分配的小小区标识符与与锚定eNB相关联的唯一小区标识符相关联，以及将用户设备（UE）以双连接模式的历史信息报告给目标演进节点B（ eNB）。 UE历史信息至少包括锚eNB的唯一小区标识符。