Use of Cell Switch Assistance Information for SSB Searching During Satellite Switching

    公开(公告)号:US20250048247A1

    公开(公告)日:2025-02-06

    申请号:US18776088

    申请日:2024-07-17

    Abstract: A UE, connected using a current cell served by a first satellite to a BS, receives information from the BS including assistance information for a cell switch from the current cell to a cell served by a second satellite. The information is received before a stop time indicating when the current cell will stop serving the UE. The UE performs the cell switch from the current cell to the cell served by the second satellite using at least the assistance information to find cell synchronization block(s) for the served by the second satellite. The BS sends the information from the BS including the assistance information for a cell switch from the current cell to a cell served by a second satellite. The BS shuts down the current cell at a stop time.

    COMMUNICATION IN NON-TERRESTRIAL NETWORKS
    4.
    发明公开

    公开(公告)号:US20240007181A1

    公开(公告)日:2024-01-04

    申请号:US18257938

    申请日:2021-12-01

    CPC classification number: H04B7/18519 H04B7/18513 H04B17/309 H04B17/40

    Abstract: Apparatus and method for communication in non-terrestrial networks are provided. Downlink transmissions are received (400) from one or more non-terrestrial nodes. Signal strengths and/or signal quality of the transmissions are measured (402) from the one or more non-terrestrial nodes. Transitions between line-of-sight and non-line-of-sight states regarding the one or more non-terrestrial nodes are determined (404). Locations of the one or more non-terrestrial nodes and the apparatus are determined (406) and elevation and azimuth angles to the one or more non-terrestrial nodes from the apparatus are calculated (408). A database of the line-of-sight and non-line-of-sight states is generated (410) as a function of elevation and azimuth angles and apparatus location and utilised (412) to determine expected line-of-sight and non-line-of-sight states for non-terrestrial nodes.

    ADAPTIVE CELLULAR ACCESS
    5.
    发明公开

    公开(公告)号:US20230397259A1

    公开(公告)日:2023-12-07

    申请号:US18249688

    申请日:2021-01-14

    CPC classification number: H04W74/0833 H04W74/006 H04W72/542 H04W84/06

    Abstract: This document discloses a solution for performing a random access procedure. According to an aspect, a method for a terminal device comprises: receiving, from an access node, system information comprising a first random access configuration and at least a second random access configuration; determining, whether a link loss between the terminal device and the access node is increasing or decreasing; if the link loss is determined to decrease, selecting the first random access configuration and performing the random access with the access node by using the first random access configuration; and if the link loss is determined to increase, selecting the second random access configuration and performing random access with the access node by using the second random access configuration.

    TIMING ADVANCE RANGE EXTENSION IN RANDOM ACCESS RESPONSE

    公开(公告)号:US20220386382A1

    公开(公告)日:2022-12-01

    申请号:US17775441

    申请日:2020-10-19

    Abstract: A method may include sending, by a user equipment, a random access preamble message to a network element. The method may also include receiving an uplink grant in a random access response message in response to the random access preamble message. The method may further include adding an implicit timing advance offset to an uplink time domain resource allocation of the uplink grant to establish synchronization of radio transmissions between the user equipment and the network element. The method may also include transmitting a scheduled transmission message including the implicit timing advance offset to the network element. Further, the implicit timing advance offset may be added to the uplink time domain resource before the scheduled transmission message is transmitted.

    METHOD AND APPARATUS FOR WIRELESS DEVICE CONNECTIVITY MANAGEMENT

    公开(公告)号:US20200059990A1

    公开(公告)日:2020-02-20

    申请号:US16346713

    申请日:2016-11-01

    Abstract: A method, apparatus and computer program are disclosed that perform in a wireless network: monitoring radio network connectivity release requests received from a wireless device of a given subscriber of the wireless network; determining a radio network connectivity release request frequency based on the radio network connectivity release requests received from the wireless device; receiving a current radio network connectivity release request from the wireless device; determining whether the radio network connectivity release request frequency meets a first threshold and: if yes, taking first corrective action to mitigate network load by excessive radio network connectivity release requests.

    METHOD FOR NETWORK-ASSISTED UPLINK TIME ADVANCE FOR EXTREME RANGE SUPPORT

    公开(公告)号:US20190342845A1

    公开(公告)日:2019-11-07

    申请号:US16389800

    申请日:2019-04-19

    Abstract: A method includes receiving, from a base station, network signaling including information about one or more of a timing advance scaling parameter, a processing-delay compensation parameter, and a timing advance extension parameters enabling threshold/condition; receiving a timing advance index from the base station; adjusting parameters for uplink transmissions using the received timing advance index for the one or more of the timing advance scaling parameter, the processing-delay compensation parameter, and the timing advance extension parameters enabling threshold/condition; and performing uplink transmissions according to the configured and adjusted parameters. Another method includes sending, to a user equipment, network signaling including information about one or more of a timing advance scaling parameter, a processing-delay compensation parameter, and a timing advance extension parameters enabling threshold/condition; sending a timing advance index to the user equipment; and receiving uplink transmissions according to the configured and adjusted parameters.

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