9 results about "Fast handover" patented technology

Various example implementations relate to methods and apparatuses for network slice based conditional fast handover An apparatus may be configured to receive, from a source network element, a message in association with a conditional handover for conditional handover to one or more candidate target cells supported by one or more target network elements, wherein the message comprises a baseline configuration of the one or more candidate target cells, at least one triggering condition for the conditional handover to the one or more candidate target cells, and one or more network slice specific configurations associated with one or more network slices supported at the one or more candidate target cells. The apparatus may be configured to evaluate the triggering condition and the slice specific configurations to select at least one target cell of the one or more candidate target cells for the conditional handover. And the apparatus may be configured to initiate a random access procedure to establish a radio resource connection with the selected at least one target cell.

Various example embodiments relate to apparatuses and methods for fast handover and conditional fast handover of user equipment without a pre-allocated C-RNTI An apparatus may be configured to receive a message in association with a handover from a handover source access node, the message comprising a cell-specific baseline configuration for a handover of user equipment to a target cell and a handover identifier assigned to the user equipment, to initiate a random-access procedure to the target cell according to the cell-specific baseline configuration, to transmit a reconfiguration complete message comprising the handover identifier to the handover target access node during the random-access procedure, and to receive a message comprising a supplementary configuration for the user equipment and a cell radio network temporary identifier assigned to the user equipment from the handover target access node.

Embodiments of the present application relate to the technical field of communications, and disclose a communication method and a communication device, capable of supporting the handover of a terminal from a non-terrestrial cell to a terrestrial cell, and capable of reducing the handover duration and energy consumption of the terminal. In the method, information about a first network element of a terrestrial PLMN which a terminal is allowed to access can be indicated; the first network element can provide terrestrial cell information covering area information or location information of the terminal, wherein the terrestrial cell information is used for enabling the terminal, upon entering a coverage area of any terrestrial cell, to hand over or reselect from a non-terrestrial cell to the terrestrial cell. In this way, when neighboring cell information cannot be configured between a non-terrestrial network and a terrestrial network, fast handover of a terminal from a non-terrestrial cell to a terrestrial cell is supported, and the need for the terminal to frequently perform frequency search is eliminated, thereby reducing energy consumption of the terminal.

Embodiments of the present application relate to the technical field of communications, and disclose a communication method and a communication device, capable of supporting the handover of a terminal from a non-terrestrial cell to a terrestrial cell, and capable of reducing the handover duration and energy consumption of the terminal. In the method, information about a first network element of a terrestrial PLMN which a terminal is allowed to access can be indicated; the first network element can provide terrestrial cell information covering area information or location information of the terminal, wherein the terrestrial cell information is used for enabling the terminal, upon entering a coverage area of any terrestrial cell, to hand over or reselect from a non-terrestrial cell to the terrestrial cell. In this way, when neighboring cell information cannot be configured between a non-terrestrial network and a terrestrial network, fast handover of a terminal from a non-terrestrial cell to a terrestrial cell is supported, and the need for the terminal to frequently perform frequency search is eliminated, thereby reducing energy consumption of the terminal.

Described herein is a source network node configured for supporting an inter-node handover procedure involving at least one target network node and a user equipment (UE) served by the source network node, the source network node comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the source network node at least to: obtain, from the target network node, a baseline radio resource control (RRC) configuration comprising configuration information usable by the UE to be handed over and connected to the target network node and information indicative of at least one criterion for executing the inter-node handover procedure; determine whether to execute the inter-node handover procedure based on the criterion; and based on determining that the criterion is met: generate a handover command message based on the baseline RRC configuration; and transmit, to the UE, the handover command message for enabling the UE to be connected to the target network node.

An optical wireless communication system, a method and an apparatus for use in an optical wireless communication system, which enables data communication, e.g. LiFi, and wherein fast switching can be achieved by having neighboring access points (AP1, AP2) announce themselves using very short frames, which are picked up by a user equipment (EP1) detecting the identity of the neighbor access point (AP2) and then communicating it to the current access point (AP1) to share information about the user equipment (EP1) with its neighbor access point (AP2) so that the neighbor access point (AP2) can be preconfigured to allocate resources and / or synchronize.

Various example embodiments relate to apparatuses and methods for fast handover and conditional fast handover of user equipment. An apparatus may be configured to receive a message comprising cell-specific baseline configurations and execution conditions for a conditional handover from a source access node, the cell-specific baseline configurations comprising a default signaling radio bearer configuration, determine information on radio link quality of a source cell and one or more candidate target cells, select at least one target cell from the one or more candidate target cells based on the execution conditions and the determined information on radio link quality, initiate a random-access procedure to the selected at least one target cell based on the cell-specific baseline configuration, and transmit a reconfiguration complete message on a signaling radio bearer indicated in the default signaling radio bearer configuration to the at least one handover target access node during the random-access procedure.

Various example embodiments relate to apparatuses and methods for fast handover and conditional fast handover of user equipment An apparatus may be configured to receive, by a user equipment from a handover source access node, a message in association with a handover comprising a cell-specific baseline configuration for a handover of the user equipment to a target cell provided by a handover target access node, the cell-specific baseline configuration comprising a default signaling radio bearer configuration, to initiate a random-access procedure to the target cell to establish a radio resource control connection between the user equipment and the handover target access node based on the cell-specific baseline configuration, and to transmit a reconfiguration complete message on a signaling radio bearer indicated in the default signaling radio bearer configuration to the handover target access node during the random-access procedure.