Abstract: In general, the current subject matter relates to configuration selection enhancements for layer 1/layer 2 (L1/L2) triggered mobility (LTM). In some implementations, configuration selection enhancements for LTM can include receiving, at a centralized unit control plane (CU-CP) of a base station from a first distributed unit (DU) of the base station, data relevant to prepare a LTM handover (HO) configuration of at least one service for a user equipment (UE), and can include, after receiving the data, requesting, by the CU-CP, a second DU to prepare, considering the data, at least one LTM target cell configuration for the HO of the at least one service for the UE.

Abstract: Techniques for performing efficient L1/L2 mobility are provided. For example, a method in a user equipment (UE) connected to a serving cell, is provided. The method comprises receiving, from a first network node, a first reconfiguration message including a first base configuration common to a plurality of first cells served by the first network node and a plurality of first cell-specific configurations each related to one of the plurality of first cells to enable execution of a mobility procedure; and applying, upon execution of the mobility procedure, at least a cell-specific configuration for a first target cell from among the plurality of first cell-specific configurations to connect the UE to the first target cell.

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause a terminal device to detect a failure, related to a serving cell and to transmit a first indication characterizing the failure to a network node associated with the assisting cell.

Abstract: The present disclosure relates to techniques that enable an efficient Radio Link Monitoring (RLM) for a User Equipment (UE) in a multi Transmitter Receiver Point (mTRP) scenario. For this purpose, a serving cell of a serving Distributed Unit (DU) of a disaggregated network node and at least one non-serving (or stand-by) cell of a non-serving DU of the disaggregated network node are configured fora UE. Then, the UE is informed of beams used for the serving and non-serving cells. The UE performs the RLM over the serving cell by using the beams of the serving cell. Whenever there is an Radio Link (RL) quality degradation (which may potentially lead to an RL Failure (RLF)) detected in the serving cell, the UE may initiate switching of the RLM from the serving cell to one of the non-serving cells by transmitting a corresponding request to the serving DU.

Abstract: A technique, comprising: generating an information set for a user equipment; wherein the information set at least includes information for configuring the user equipment for performing measurements for a mobility decision at a first distributed unit operating a first, serving cell of a radio access network; wherein the measurements comprise at least: measurements for the first, serving cell, and measurements for a second cell operated by a second distributed unit of the radio access network.

Abstract: Improved techniques of handover involving dual connectivity configuration with CHO include configuring a UE with a conditional fallback configuration (CFC) linked to M-RLF event at the source MN. Specifically, the MN prepares a fallback configuration along with the CHO configuration for the UE. This fallback configuration is provided to the UE as a conditional configuration, but this is not linked to measurement-event but rather to a radio link failure event. The condition is linked to MCG-RLF along with additional measurement criteria.

Abstract: An apparatus includes circuitry configured to transmit downlink data to a user equipment for at least one serving cell and at least one assisting cell; receive uplink data from the user equipment; wherein the serving cell is hosted with a serving distributed node, and the assisting cell hosted with an assisting distributed node; transmit control plane signaling, to configure and manage inter distributed unit multi transmission reception point operation, from the serving node to the assisting node using a control plane node, and transmit control plane signaling from the assisting node to the serving node using the control plane node; and transmit user plane data from the serving node to the assisting node using a user plane node for downlink multi transmission reception point operation, and transmit user plane data from the assisting node to the serving node using the user plane node for uplink multi transmission reception point operation.

Abstract: In this invention, when a serving distributed unit informs target distributed unit via a central unit about a target reference, it is proposed to use, signal index X/indices X1 . . . Xn for PDCCH transmissions or PUSCH receptions or a RACH-less handover: Send by a distributed unit of the serving cell towards a distributed unit of a target cell one of before, upon, or after transmission of a layer 1 serving cell change command to a user equipment, signaling comprising configuration information associated with the user equipment to perform a random access channel less handover of the user equipment to the target cell, wherein the configuration information informs the target cell about at least one target reference signal index that shall be used for at least one of at least one physical downlink control channel transmission or at least one physical uplink shared channel reception.

Abstract: An apparatus may receive, from a source network node, a configuration of a channel bandwidth and a first bandwidth part for receiving data from the source network node, for example during a handover from the source network node to a target network node, and a configuration of a second bandwidth part for receiving data from the target network node. The apparatus may communicate data with the source network node and the target network node with a bandwidth including the first bandwidth part and the second bandwidth part using same protocol stack.

Abstract: A communication control apparatus includes at least one processor that performs: in case a communication control model concerning communication control between a communication device and a network that provides communication service to the communication device can be managed by the communication device and the network under different management schemes, causing an ID associator to associate a communication-device-side ID of the communication control model managed by the communication device and a network-side ID of the communication control model managed by the network; and causing an identifying information provider to provide identifying information from at least one of the communication device and the network to the other of the communication device and the network to identify the correct communication control model in accordance with the association between the communication-device-side ID and the network-side ID.

Abstract: An apparatus comprising means for implementing a near-real-time radio access network intelligent controller; means for storing user equipment-specific information relating to at least one user equipment connected to a first access node being controlled by said near-real-time radio access network intelligent controller; means for establishing an interface to a second near-real-time radio access network intelligent controller; and means for transferring at least said user equipment-specific information to said second near-real-time radio access network intelligent controller in response to said user equipment establishing a connection to a second access node being controlled by said second near-real-time radio access network intelligent controller.

Abstract: Systems and methods for implementing multiple base reference configurations for layer1/layer2 triggered mobility in a telecommunications network are provided.

Abstract: A user equipment (UE) includes a memory having non-transitory instructions stored therein, and a processor coupled to the memory, and being configured to execute the instructions, thereby causing the UE to receive a cell reselection policy from a network, the cell reselection policy including a cell reselection criterion based on mobility history information (MHI) of a plurality of UEs other than the UE. While camped on a first cell and operating in an idle mode, the UE receives a first reference signal from the first cell and a second reference signal from a second cell, and applies the cell reselection policy to the first and second reference signals, thereby determining whether to remain camped on the first cell. Based on the determination, the UE either remains camped on the first cell or performs a cell reselection to the second cell.

Abstract: A fallback configuration is prepared for one of a Radio Link Failure (RLF) or a handover (HO) failure of a User Equipment (UE). Layer 1 (L1)/Layer 2 (L2) Triggered Mobility (LTM) candidate cells are identified for fallback. An HO failure or an RLF is predicted for LTM target cells and at least one of a fallback LTM configuration or a fallback Conditional Handover (CHO) configuration is prepared for a target cell selected from the one or more LTM candidate cells. The UE is provided with the at least one of the prepared fallback LTM configuration or the fallback CHO configuration for the target cell. Control information is sent to the UE to initiate a cell switch by the UE from a serving cell to the target cell based on the at least one of the prepared fallback LTM configuration or the fallback CHO configuration for the target cell.

Abstract: A Layer 1-Layer 2 (L1/L2) Triggered Mobility (LTM) handover (HO) procedure, and method. A gNB-Centralized Unit User Plane (gNB-CU-CP) sends Radio Resource Control (RRC) messages with LTM candidate cell configuration of LTM candidate gNB-DUs. Based on the RRC messages, a Layer (L1) Measurement Report is sent to the LTM candidate gNB-DUs. In response, the LTM candidate gNB-DUs determine whether a radio condition of the LTM candidate gNB-DUs meet a predetermined resource reservation criteria. Based on meeting the predetermined resource reservation criteria, the LTM candidate gNB-DUs initiate reservation of radio resources for an LTM candidate cell for a LTM cell switch. The LTM candidate gNB-DUs send to the gNB-CU-CP an updated LTM candidate cell configuration. The gNB-CU-CP sends the updated radio resource configuration to the UE via the serving gNB-DU.

Abstract: The present disclosure describes techniques for delivery of layer 1 measurements to target gNodeB-DU during layer (L1/L2) triggered mobility (LTM). In one aspect, a method comprises receiving a Physical Downlink Control Channel (PDCCH) order to perform uplink synchronization with at least one LTM candidate cell of at least one candidate gNB-DU. The method further comprises transmitting, in a Random Access Channel (RACH) Request message, an indication to send L1 measurement report along with RACH preamble, to the at least one LTM candidate gNB-DU serving the at least one LTM candidate cell. The method finally comprises receiving, a Random Access Response (RAR) message along with an uplink (UL) scheduling grant to send L1 measurement report to the at least one LTM candidate gNB-DU and transmitting the L1 measurement report to the at least one LTM candidate gNB-DU, in response to receipt of the UL scheduling grant in the RAR message.

Abstract: An apparatus for use by a communication network control element or communication network control function configured to control a communication of at least one communication element or function in a communication network, the apparatus comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to determine a reference configuration to be used for preparing a first type of mobility procedure for a communication element or communication function which is configured to conduct a second type of mobility procedure being different to the first type of mobility procedure, to cause transmission, to a target communication network control element or communication network control function to which the communication of the communication element or communication function is to be changed, of a reques

Abstract: A first network node comprises program code including: first receiving code configured to cause at least one of said at least one processor to receive, from a second network node, a UE context modification request; first transmitting code configured to cause at least one of said at least one processor to transmit, to the second network node in response to receiving the context modification request, a context modification response; allocating code configured to cause at least one of said at least one processor to, in response to the UE context modification request, allocate one or more pre-configured grants to the UE, and second receiving code configured to cause at least one of said at least one processor to receive, from the UE in response to the one or more pre-configured grants, first uplink data, before sending a scheduling request to the base station and receiving corresponding UL scheduling grants.

Abstract: Various example embodiments relate to relate to network nodes (20A; 20B), methods and computer program products configured to hand over a communication link between a cell and user equipment (10) in a wireless communication network from a source cell (40A) to a target cell (40B; 40C).

Abstract: An apparatus configured to: receive a first measurement and reporting configuration for at least one first cell of an active set and a second measurement and reporting configuration for at least one second cell of a configured set, wherein the at least one second cell is a target cell and not part of the active set; measure and report the at least one first cell based on the first measurement and reporting configuration; abstain from measuring and reporting the at least one second cell based on the second measurement and reporting configuration; send an indication that an activation condition is met for the at least one second cell; add the at least one second cell to the active set based on a confirmation indication; and measure and report the at least one second cell based on the second measurement and reporting configuration.