APPARATUS, METHOD AND COMPUTER PROGRAM FOR PACKET DUPLICATION

    公开(公告)号:US20210399846A1

    公开(公告)日:2021-12-23

    申请号:US17287664

    申请日:2019-11-01

    Abstract: There is provided an apparatus, said apparatus comprising means for causing at least one data packet to be transmitted by a user equipment using a first logical channel having a first set of logical channel parameters, and at least one data packet to be transmitted by the user equipment using a second logical channel having a second set of logical channel parameters, determining whether at least one trigger condition is met and, if so, causing the at least one data packet to be transmitted by the user equipment using the second logical channel with the modified second set of logical channel parameters.

    Threshold for reduced latency mechanisms

    公开(公告)号:US10594612B2

    公开(公告)日:2020-03-17

    申请号:US15752402

    申请日:2016-08-13

    Abstract: In accordance with example embodiments of the invention there is at least a method and apparatus to perform communicating in a network at least one packet over a transport protocol connection, identifying that latency reduction procedures for the transport protocol connection are to be performed, and preventing based on predetermined criteria specific ones of the latency reduction procedures from being performed. Further, in accordance with the example embodiments there is at least a method and apparatus to perform identifying that latency reduction procedures for a transport protocol connection with a mobile device in a network are to be performed, determining that specific ones of the latency reduction procedures are not to be performed, and providing to the mobile device an indication of predetermined criteria to identify the specific ones of the latency reduction procedures that are not to be performed.

    Forward error correction and RAN retransmission

    公开(公告)号:US12177012B2

    公开(公告)日:2024-12-24

    申请号:US17211085

    申请日:2021-03-24

    Abstract: For a source stream of input data where FEC scheme(s) have been used to create a repair stream, transmitting by a network node packet(s) comprising data of the source stream or the repair stream packaged as at least part of PDU(s). An ARQ or HARQ process is applied to the PDU(s). The network node receives feedback information as part of the process corresponding to the PDU(s), including positive ACK/NACK response for the PDUs. The retransmissions of the negatively acknowledged PDU(s) are controlled when the FEC scheme is known not to be able to compensate for loss(e)s of packet(s) contained in the PDU(s) indicated as being negatively acknowledged. A UE receives packet(s), determines loss(es), and, in response to a determination the FEC scheme is known to be able to recover from the loss(es), sends at least one ACK for any lost packets that correspond to the one or more loss(es).

    Apparatus and method for DRX mechanisms for single HARQ process operation in NB-IoT

    公开(公告)号:US11497078B2

    公开(公告)日:2022-11-08

    申请号:US16076835

    申请日:2017-01-24

    Abstract: One embodiment is directed to a method comprising determining if a HARQ RTT timer for a downlink HARQ process expires; if the HARQ RTT timer for the downlink HARQ process is determined expired, determining if the data of the corresponding downlink HARQ process was successfully decoded; starting a drx-retransmission timer for the corresponding downlink HARQ process if the data of the corresponding downlink HARQ process was not successfully decoded; and (re)starting a drx-inactivity timer if the data of the corresponding downlink HARQ process was successfully decoded; determining if a HARQ RTT timer for a uplink HARQ process expires; if the HARQ RTT timer for the uplink HARQ process is determined expired, starting a drx-retransmission timer for the corresponding uplink HARQ process.

    FORWARD ERROR CORRECTION AND RAN RETRANSMISSION

    公开(公告)号:US20220311539A1

    公开(公告)日:2022-09-29

    申请号:US17211085

    申请日:2021-03-24

    Abstract: For a source stream of input data where FEC scheme(s) have been used to create a repair stream, transmitting by a network node packet(s) comprising data of the source stream or the repair stream packaged as at least part of PDU(s). An ARQ or HARQ process is applied to the PDU(s). The network node receives feedback information as part of the process corresponding to the PDU(s), including positive ACK/NACK response for the PDUs. The retransmissions of the negatively acknowledged PDU(s) are controlled when the FEC scheme is known not to be able to compensate for loss(e)s of packet(s) contained in the PDU(s) indicated as being negatively acknowledged. A UE receives packet(s), determines loss(es), and, in response to a determination the FEC scheme is known to be able to recover from the loss(es), sends at least one ACK for any lost packets that correspond to the one or more loss(es).

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