H04W36/0061

DISCONTINUOUS RECEPTION (DRX) ENHANCEMENTS IN LTE SYSTEMS
20230018315 · 2023-01-19 ·

Embodiments of a system and method for providing DRX enhancements in LTE systems are generally described herein. In some embodiments, a system control module is provided for controlling communications via a communications interface. A processor is coupled to the system control module and is arranged to implement an inactivity timer and an on-duration timer for determining an active time for monitoring subframes on the physical downlink control channel for control signals, the processor further monitoring subframes after the active time.

Pre-forwarding data packets for conditional handover
11706674 · 2023-07-18 · ·

Various embodiments are described for apparatuses, systems, and methods for pre-forwarding data packets for conditional handover. A UE may connect to a serving base station and perform measurement(s) of one or more neighboring base stations. The UE may provide measurement report(s) corresponding to the measurement(s) to the serving base station. The UE may receive handover assistance information from the serving base station. The handover assistance information may identify at least one neighboring base station that receives downlink packet forwarding of downlink packets intended for the UE prior to handover. The UE may evaluate handover conditions of the neighboring base stations, including the at least one neighboring base station. The UE may perform handover to a first neighboring base station of the at least one neighboring base station based on the at least one neighboring base station receiving downlink packet forwarding of downlink packets intended for the UE prior to handover.

Medium access control layer based mobility signaling

Aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The method generally includes receiving radio resource control (RRC) signaling indicating a set of cells that support physical (PHY) layer or medium access control (MAC) layer mobility signaling, receiving at least one MAC control element (CE) indicating mobility information for the set of cells, and updating one or more features of the set of cells based on the MAC CE.

Method and apparatus for conditional handover operation in communication system

Disclosed are a method and an apparatus for enhanced conditional handover (CHO). An operation method of a base station may comprise: receiving a measurement report message from a terminal; transmitting a CHO request message to one or more candidate target cells; receiving a CHO request ACK message from the one or more candidate target cells; and transmitting an RRC reconfiguration message including CHO status report configuration information to the terminal, wherein the CHO status report configuration information requests transmission of information for determining a target cell to which terminal is likely to be handed over among the one or more candidate target cells.

DEVICE AND METHOD FOR PERFORMING HANDOVER IN WIRELESS COMMUNICATION SYSTEM
20230014613 · 2023-01-19 ·

The present disclosure relates to a communication technique for fusing, with an IoT technology, a 5G communication system for supporting a higher a data transmission rate than a 4G system, and a system therefor. According to various embodiments of the present disclosure, a method performed by a base station of a serving cell in a wireless communication system may comprise the steps of: transmitting configuration information for an artificial intelligence (AI)-based handover to a terminal; receiving, from the terminal, a handover request to a target cell according to the AI-based handover; and transmitting, to the terminal, a configuration message for access to the target cell, in response to the handover request, wherein the target cell is identified on the basis of a neural network (NN) configured for the AI-based handover and a measurement result of the terminal.

CELL SELECTION OR RESELECTION METHOD AND DEVICE
20230016053 · 2023-01-19 ·

Embodiments of the present disclosure disclose a cell selection or reselection method and a device, to resolve a problem that a terminal device cannot effectively and rapidly access a cell without taking a slice of the cell into consideration when performing cell selection or reselection. The method may be performed by a terminal device, and includes: receiving a MIB message from a cell; in a case of determining, based on the MIB message, that the cell can be a candidate access cell, reading a SIB message of the cell, where the SIB message includes slice information of the cell; and selecting one slice from slices of the cell to access based on slice information supported by the terminal device and the slice information of the cell.

SYSTEMS AND METHODS TO OPTIMIZE NON-3GPP UNTRUSTED WI-FI TO NEW RADIO EVOLVED PACKET SYSTEM FALLBACK HANDOVER

The present technology is generally directed to optimizing a non-3GPP untrusted Wi-Fi to 5G system handover followed by Evolved Packet System (EPS) fallback, more specifically, to delaying removal of the Wi-Fi session resources and creating a voice flow as part of the EPS fallback. The present technology can receive a request for an EPS fallback from a mobile device for a handover to a 5G network while the mobile device is in communication over non-3GPP access network, maintain one or more resources of the non-3GPP access network during data path switching from the non-3GPP access network to the 5G network, generate a list of EPS bearer identifiers to transmit to an access and mobility management function (AMF), wherein the list of EPS bearer identifiers is associated with a voice flow to transfer the one or more resources of the non-3GPP access network as part of the handover from the non-3GPP access network to the 5G network, and transmit the list of EPS bearer identifiers to a mobility management entity (MME).

RADIO TERMINAL, CENTER SERVER APPARATUS, AND METHOD THEREFOR

A radio terminal (1) determines that the radio terminal (1) is approaching a first station (5), receives from a center server (4) a cell identifier of a first cell corresponding to an entrance gate function (53) of the first station (5), and transmit a message containing the cell identifier to a cellular communication network. The message causes the network to add the first cell (54) as a secondary cell in dual connectivity for the radio terminal (1), enabling the radio terminal (1) to communicate with the entrance gate function (53) via a user plane path including a radio connection of the first cell (54). The radio terminal (1) then communicates with the entrance gate function (53) via the user plane path. This contributes, for example, to reducing latency required to transmit or receive user data in a narrow coverage cell when a radio terminal receives a signal from that cell.

Method and apparatus for controlling packet duplication by considering dual connectivity in next-generation mobile communication system

The present disclosure relates to a communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An embodiment relates to packet duplication control. Further, an embodiment relates to cell reselection. A communication method, a terminal, and a base station are provided. The method includes receiving system information related to cell reselection of a neighboring cell, from a base station on which the terminal is camping, in case that the terminal supports a supplementary uplink (SUL) and the system information includes first minimum requirement reception level information related to the SUL, acquiring a first cell selection reception level value based on the first minimum requirement reception level information related to the SUL and performing cell reselection to a new radio (NR) cell based on the first cell selection reception level value.

NEIGHBOR CELL TRANSMISSION CONFIGURATION INDICATOR (TCI) STATE SWITCH

The present application relates to devices and components including apparatus, systems, and methods to perform a switch of a TCI state from a serving cell to a neighbor cell. A UE determines whether the state of the neighbor cell is known or unknown and whether the neighbor cell’s TCI state is known or unknown. The total delay time to perform the TCI state switch can impacted by this the known/unknown statuses. Other factors can also contribute to the total delay time. The UE may also signal its capability to monitor the TCI state of the neighbor cell and its capability to switch to such a TCI state.