公开(公告)号：US20220345965A1

公开(公告)日：2022-10-27

申请号：US17239107

申请日：2021-04-23

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Halit Murat GÜRSU ,  Ömer BULAKCI ,  Muhammad NASEER-UL-ISLAM ,  Philippe GODIN ,  Ahmad AWADA

IPC: H04W36/00 ,  H04W36/08

Abstract: Systems, methods, apparatuses, and computer program products for conditional handover (CHO) execution with network slice service continuity prioritization are provided. A radio resource control (RRC) reconfiguration message sent by a source radio access network (RAN) node to the user equipment (UE) may include, for each CHO configuration, an associated network slice-related priority index. The UE may take this index into account when selecting a suitable cell during CHO recovery. Additionally, or alternatively, the RRC reconfiguration message sent by a source RAN node may include, for each CHO configuration, an associated network slice support information of the candidate target cell. The message may also include network slice remapping information for any network slice associated with one of the candidate target cells. Using the above network slice-related information received from the network, the UE can prioritize the cell to select during CHO recovery in case more than one suitable cell is available.

公开(公告)号：US20220338073A1

公开(公告)日：2022-10-20

申请号：US17232053

申请日：2021-04-15

Applicant: Nokia Technologies Oy

Inventor： Ahmad AWADA ,  Christian ROM ,  Samantha CAPORAL DEL BARRIO ,  Ingo VIERING ,  Jedrzej STANCZAK

IPC: H04W36/00 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W80/02

Abstract: Improved techniques of beam management in a HO situation include receiving, at a source node from a candidate target node after receiving a measurement report from a UE prior to completion of a HO, a repetition configuration of a channel state information reference signal (CSI-RS) resource index to be used by the UE for random access. When beam refinement occurs during HO, a candidate target cell for HO provides the UE with a repetition configuration of CSI-RS resource index that will be selected and used by the UE for random access to the target cell. When beam refinement occurs before HO, the candidate target cell of handover provides the UE (e.g. during the handover preparation phase in case of conditional HO (CHO)) with the repetition configuration of CSI-RS resource index (or indices) whose transmission(s) is repeated while the UE is served by the source cell and before executing a handover.

公开(公告)号：US20220330106A1

公开(公告)日：2022-10-13

申请号：US17754286

申请日：2020-09-24

Applicant: Nokia Technologies Oy

Inventor： Ahmad AWADA ,  Ingo VIERING ,  Krzysztof KORDYBACH ,  Tero HENTTONEN ,  Srinivasa SELVAGANAPATHY ,  Jedrzej STANCZAK

IPC: H04W36/00 ,  H04W36/08

Abstract: A method and apparatus may include receiving, by a master node involved in multi-connectivity, at least one indication from a user equipment upon or after at least one condition for conditional cell change is fulfilled that it has detached from at least one source PSCell of a secondary node. The method may further include transmitting, by the master node, at least one SgNB Release Request to the source Secondary Node such that the secondary node stops transmission and reception on the source PSCell and/or initiates data forwarding to the target SN or to the MN. The method may further include receiving, by the master node, at least one SgNB Release Request Acknowledge from the source Secondary Node. The method may further include forwarding, by the master node, user data to the target secondary node upon receiving an indication from the user equipment.

公开(公告)号：US20220322456A1

公开(公告)日：2022-10-06

申请号：US17634145

申请日：2019-08-14

Applicant: Nokia Technologies Oy

Inventor： Ingo VIERING ,  Ahmad AWADA ,  Jedrzej STANCZAK ,  Samuli Heikki TURTINEN

IPC: H04W74/08 ,  H04W74/04 ,  H04W56/00

Abstract: An example embodiment relates to Random Access Channel, RACH, procedure, for example in the New Radio, NR. Random access procedures may be of two types, contention based CBRA and contention free, CFRA. A client device may only perform CBRA fallback when none of the reference signal received strengths, RSRPs, of the synchronization signal blocks, SSBs, which is associated with the CFRA resources is above a predefined threshold, T1. All SSBs and CSI-RS with associated CFRA resources may be below the threshold. Then, the client device may select an SSB or CSI-RS according to a predefined rule and perform CFRA when CFRA resources are associated. Devices, methods and computer programs are disclosed accordingly.

公开(公告)号：US20220303806A1

公开(公告)日：2022-09-22

申请号：US17204498

申请日：2021-03-17

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Halit Murat GÜRSU ,  Ahmad AWADA ,  Ingo VIERING ,  Lars DALSGAARD

IPC: H04W24/10 ,  H04W76/28 ,  H04B7/08 ,  H04W76/19

Abstract: Systems, methods, apparatuses, and computer program products for conditional proactive discontinuous reception (DRX) measurement are provided. For example, a user equipment (UE) may be in a DRX active state (e.g., where the DRX is used) and configured to proactively measure for radio problems. Another example may relate to a network-controlled implementation where the serving network node (e.g., a base station (BS)) may signal the UE a condition and a configuration for the proactive DRX measurement. Another example may relate to a UE-controlled implementation for improving service unavailability using DRX operation. For example, the serving BS may signal, to the UE, proactive DRX measurement assistance information.

公开(公告)号：US20200329414A1

公开(公告)日：2020-10-15

申请号：US16303175

申请日：2016-05-25

Applicant: Nokia Technologies Oy

Inventor： Anup TALUKDAR ,  Mark CUDAK ,  Ahmad AWADA

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

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.