公开(公告)号：US10986552B2

公开(公告)日：2021-04-20

申请号：US16303175

申请日：2016-05-25

Applicant: Nokia Technologies Oy

Inventor： Anup Talukdar ,  Mark Cudak ,  Ahmad Awada

IPC: H04W4/00 ,  H04W36/28 ,  H04W76/15 ,  H04W36/08

Abstract: To establish a multi-AP RRC connection with a user device UD the UD in the coverage area of multiple APs selects suitable ones as cluster set candidates and reports this list to a temporary serving AP the UD chooses. The multi-AP connection itself is setup by the cluster set manager CSM. The CSM collects information from each AP about control channels and load in order to choose which APs will be in the cluster, which will be the serving AP, and to setup the multi-AP connection with the UD. Multiple message exchanges are described for this purpose. Once the multi-AP connection is established, if the UD's connection with the serving AP fails the UD can handover to another AP of the cluster set without having to re-establish a new RRC connection. This is particularly useful for networks subject to severe shadowing effects such as mmWave 5G.

公开(公告)号：US10462706B2

公开(公告)日：2019-10-29

申请号：US15632220

申请日：2017-06-23

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Samuli Turtinen ,  Ahmad Awada

IPC: G06F15/16 ,  H04W28/18 ,  H04N21/472 ,  H04N21/61 ,  H04W48/14 ,  H04L29/06 ,  H04M3/487 ,  H04W72/04

Abstract: According to an example implementation, a method may include transmitting, by a user device to a base station in a wireless network, a system information request for on-demand system information during a random access procedure, where the system information request is a request for one or more parameters that enable the user device to communicate in the wireless network, receiving, by the user device from the base station, an indication of a wait period in which the user device waits before obtaining the on-demand system information, waiting, by the user device, a time duration during the wait period, and monitoring, by the user device after expiration of the wait period, a system information window in which a system information message having the on-demand system information is broadcasted by the base station.

公开(公告)号：US12289791B2

公开(公告)日：2025-04-29

申请号：US17632515

申请日：2019-08-14

Applicant: Nokia Technologies Oy

Inventor： Ahmad Awada ,  Muhammad Naseer-Ul-Islam ,  Andreas Lobinger

IPC: H04W76/30 ,  H04W36/00 ,  H04W72/02 ,  H04W74/08 ,  H04W74/0833

Abstract: There are provided measures for network-assisted fallback to contention-based random access. Such measures exemplarily comprise, at a target access point being a target of a handover of a terminal connected to at least one net-receiving work slice from a source access point, receiving a handover request including information on said at least one network slice, selecting, from a plurality of pools of random access channel resources to be used for contention-based random access processing, a first pool of random access channel resources to be used by said terminal upon fallback to contention-based random access during a handover processing, wherein said selecting is based on at least one of network slice related information on terminals in radio resource control idle mode, on terminals in radio resource control inactive mode, and/or on terminals in radio resource control connected mode, and of available random access channel resources, and transmitting a handover request acknowledgement message including handover assistance information indicative of said first pool of random access channel resources.

公开(公告)号：US12177698B2

公开(公告)日：2024-12-24

申请号：US17619782

申请日：2019-06-27

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Ingo Viering ,  Krzysztof Kordybach ,  Tero Henttonen ,  Ahmad Awada ,  Guillaume Decarreau ,  Jedrzej Stanczak

IPC: H04W24/08 ,  H04W36/00 ,  H04W36/36

Abstract: It is provided a method comprising monitoring if a source cell intends performing a radio reconfiguration of a terminal configured with a conditional handover from the source cell to a target cell; determining a determined category among plural predetermined categories; wherein the radio reconfiguration is associated to the determined category; for each category a respective predetermined sequence of one or more operations is defined; the respective predetermined of one of the categories is different from the respective predetermined sequence of another one of the categories; and the method further comprises inhibiting the performing of the radio reconfiguration of the terminal unless the predetermined sequence of one or more operations of the determined category is performed along with the performing of the radio reconfiguration if the source cell intends performing the radio reconfiguration of the terminal.

公开(公告)号：US20240381411A1

公开(公告)日：2024-11-14

申请号：US18316144

申请日：2023-05-11

Applicant: Nokia Technologies Oy

Inventor： Timo Koskela ,  Sanjay Goyal ,  Ali Karimidehkordi ,  Ahmad Awada ,  Umur Karabulut ,  Anastasios Kakkavas ,  Panagiotis Spapis

IPC: H04W74/00 ,  H04W52/36 ,  H04W74/08

Abstract: Embodiments of the present disclosure provide a method for improved physical downlink control channel (PDCCH) ordered physical random-access channel (PRACH) transmission in lower-layer triggered mobility (LTM). The method includes receiving a PDCCH order to initiate a PRACH transmission to at least one cell. The method also includes decoding a PRACH transmission index value, where the PRACH transmission index value describes whether the PRACH transmission is an initial transmission or a retransmission, and where the PRACH transmission index value is associated with a target downlink (DL) reference signal (RS). The method also includes determining a random access (RA) preamble power ramping counter value. The method also includes transmitting, based in part on a PRACH transmission power level, the PRACH transmission to the at least one cell, where the PRACH transmission power level is determined based in part on the RA preamble power ramping counter value.

公开(公告)号：US20240340946A1

公开(公告)日：2024-10-10

申请号：US18296911

申请日：2023-04-06

Applicant: Nokia Technologies Oy

Inventor： Ali Karimidehkordi ,  Halit Murat Gürsu ,  Timo Koskela ,  Sanjay Goyal ,  Ahmad Awada ,  Panagiotis Spapis ,  Umur Karabulut

IPC: H04W74/00 ,  H04W36/00 ,  H04W74/08

CPC classification number: H04W74/006 ,  H04W36/00725 ,  H04W74/0833

Abstract: A user equipment apparatus (UE) includes processor(s) and memory storing instructions. The instructions, when executed by the processor(s), cause the UE at least to, establish a connection with a control network node via a serving cell, where the serving cell is supported by a source network node; receive, from the control network node and/or the source network node, timing advance (TA) cell configurations for a set of timing advance (TA) cells, where the TA cell configurations include a TA-associated random access (RA) configuration, where the set of TA cells includes first TA cells that include candidate target cells with which the UE may connect and/or other TA cells which are requested by at candidate target cells and which the UE may connect with in case the UE connects with the one of the candidate target cells; and acquire TA for the TA cell based on the TA-associated RA configuration.

公开(公告)号：US12096300B2

公开(公告)日：2024-09-17

申请号：US18263917

申请日：2022-01-28

Applicant: Nokia Technologies Oy

Inventor： Muhammad Naseer-Ul-Islam ,  Ömer Bulakci ,  Ahmad Awada ,  Jedrzej Stanczak ,  Srinivasan Selvaganapathy ,  Amaanat Ali

IPC: H04W36/24 ,  H04W36/26 ,  H04W36/30 ,  H04W36/00

CPC classification number: H04W36/249 ,  H04W36/26 ,  H04W36/302 ,  H04W36/00837

Abstract: Disclosed is a method comprising evaluating a survival time status of a terminal device, determining a handover command transmission based at least partly on the survival time status, and transmitting the handover command to the terminal device based on the determining.

公开(公告)号：US12089065B2

公开(公告)日：2024-09-10

申请号：US17770586

申请日：2019-10-21

Applicant: Nokia Technologies Oy

Inventor： Ahmad Awada ,  Mikko Saily ,  Ingo Viering ,  Tero Henttonen

IPC: H04W16/28 ,  H04W16/26

CPC classification number: H04W16/28 ,  H04W16/26

Abstract: For example, a communication link between a first relay node and a second relay node, which are in synchronous movement, is established. Beam management assistance information from the first relay node is received at the second relay node upon an occurrence of beam failure at the first relay node (S801). At the second relay node it is decided about a timing at which the received beam management assistance information is to be transmitted to a serving network node (S802), and the received beam management assistance information is transmitted from the second relay node to the serving network node at the decided timing (S803).

公开(公告)号：US20240284373A1

公开(公告)日：2024-08-22

申请号：US18170816

申请日：2023-02-17

Applicant: Nokia Technologies Oy

Inventor： Sanjay Goyal ,  Timo Koskela ,  Keeth Saliya Jayasinghe Laddu ,  Ali Karimidehkordi ,  Ahmad Awada ,  Halit Murat Guersu ,  Panagiotis Spapis ,  Umur Karabulut

IPC: H04W56/00 ,  H04W72/23

CPC classification number: H04W56/005 ,  H04W56/0015 ,  H04W72/23

Abstract: In some embodiments, there may be provided a method that includes receiving timing advance acquisition parameters associated with multiple transmit receive points at a target distributed unit, wherein the timing advance acquisition parameters comprise, for the multiple transmit receive points, synchronization signal block indices, random access preamble indices, and physical random access channel mask indices; sending downlink control information to a user equipment, the downlink control information comprising an identifier of the target distributed unit, codepoints for the synchronization signal block indices, the random access preamble indices, and the physical random access channel mask indices; receiving timing advance estimates from the target distributed unit, wherein the timing advance estimates comprise estimates of timing advances associated with multiple transmit receive points at the target distributed unit; and sending the timing advance estimates associated with the multiple transmit receive points at the target distributed unit, to the user equipment.

公开(公告)号：US20240284198A1

公开(公告)日：2024-08-22

申请号：US18111050

申请日：2023-02-17

Applicant: Nokia Technologies Oy

Inventor： Krzysztof Kordybach ,  Frederic Ratovelomanana ,  Halit Murat Gürsu ,  Ahmad Awada ,  Jean-Michel Pugeat

IPC: H04W24/02 ,  H04W36/00

CPC classification number: H04W24/02 ,  H04W36/00835

Abstract: There is provided an apparatus that includes at least one processor and at least one memory storing instructions. The instructions, when executed by the at least one processor, cause the apparatus at least to, receive a list of features of radio resource control (RRC) configuration, where the list is provided by a target secondary node (target SN) of a conditional handover (CHO) procedure, and where the list indicates, for each feature of the list of features of RRC configuration, whether a change in the respective feature requires cancellation or re-initialization of CHO; and, during the CHO procedure, based on information regarding a secondary cell group (SCG) reconfiguration for a source secondary node (source SN), compare the information with the list to determine whether the SCG reconfiguration requires cancellation or re-initialization of the CHO procedure.