Contention window size adjustment feedback

    公开(公告)号:US11997711B2

    公开(公告)日:2024-05-28

    申请号:US17601686

    申请日:2019-05-02

    CPC classification number: H04W74/008

    Abstract: Embodiments of the present disclosure relate to apparatuses, methods and computer readable storage media for contention window size (CWS) adjustment feedback. The first device comprises at least one processor; and at least one memory including computer program codes; the at least one memory and the computer program codes are configured to, with the at least one processor, cause the device at least to receive at least one transport block from a second device on a predetermined bandwidth part for a transmission from the second device to the first device, the at least one transport block transmitted in a set of subbands of the predetermined bandwidth part; generate a feedback based on a set of reception states of the at least one transport block in the set of subbands; and transmit the feedback to the second device so that the second device adjusts a contention window size (CWS) for a further transmission from the second device to the first device. In this way, a feedback corresponding to interference conditions with a certain subband may be provided for the CWS adjustment and the signalling overhead is significantly reduced.

    USER EQUIPMENT ORIENTED LINK ADAPTATION

    公开(公告)号:US20220159587A1

    公开(公告)日:2022-05-19

    申请号:US17441226

    申请日:2020-03-06

    Abstract: Systems, methods, apparatuses, and computer program products for optimizing user equipment (UE) oriented link adaptation. One method may include receiving a configuration of a predefined transmission power for one or more cases. The method may also include calculating a required transmission power based on at least a specific pathloss of the one or more cases. In addition, the method may include, selecting, based on the calculation of the required transmission power, a modulation coding scheme level that does not exceed the predefined transmission power for a radio transmission. Further, the method may include performing the radio transmission based on the selected modulation coding scheme level and the calculated required transmission power.

    HARQ FEEDBACK ON GRANT-LESS UL
    4.
    发明申请

    公开(公告)号:US20200213043A1

    公开(公告)日:2020-07-02

    申请号:US16475437

    申请日:2017-12-13

    Abstract: In accordance with an example embodiment of the present invention, a method, comprising receiving, by a user equipment, information for configuration with Grant-less Uplink Physical Uplink Shared Channel (GUL PUSCH) resources; attempting to transmit, by the user equipment, Hybrid Automatic Repeat Request (HARQ) feedback on at least one resources; performing a channel access procedure for transmitting Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) on the GUL PUSCH resources in response to a determination that the attempting to transmit the HARQ feedback on the at least one resources is unsuccessful; and transmitting HARQ-ACK on the GUL PUSCH resources in response to successfully completing the channel access procedure, is disclosed.

    DYNAMIC CODEBOOK ADAPTATION FOR ENHANCED CARRIER AGGREGATION

    公开(公告)号:US20180098345A1

    公开(公告)日:2018-04-05

    申请号:US15564051

    申请日:2016-04-05

    Abstract: A method and apparatus may include determining, by a network node, a plurality of carrier groups. The method may also configuring a user equipment to use the plurality of carrier groups. The method may also include incrementing a downlink assignment index from one scheduled carrier group to another. The downlink assignment index is included with each downlink assignment of a plurality of downlink assignments. The method may also include transmitting the plurality of downlink assignments to the user equipment. Each of the plurality of downlink assignments schedules a downlink channel on a carrier belonging to one of the plurality of carrier groups.

    Channel sensing techniques for wireless networks

    公开(公告)号:US12082248B2

    公开(公告)日:2024-09-03

    申请号:US17753049

    申请日:2019-09-04

    CPC classification number: H04W74/0808

    Abstract: According to an example embodiment, a method may include determining, by a wireless node in a cell, a silent resource pattern for each of a plurality of signal waveform types including at least a single carrier waveform type and a multicarrier waveform type, wherein each silent resource pattern identifies one or more resource elements that are indicated as unused by at least one node of the cell for the signal waveform type; determining, by the wireless node, whether a signal waveform type, of the plurality of signal waveform types, for channel sensing is known by the wireless node; performing, by the wireless node if a signal waveform type for channel sensing is known by the wireless node, channel sensing based on a silent resource pattern for a known signal waveform type for channel sensing of the plurality of signal waveform types; and otherwise, performing, by the wireless node if the signal wave form type for channel sensing is not known by the wireless node, channel sensing based on a silent resource pattern for each of a plurality of the signal waveform types.

    Retransmission mechanism for configured grant uplink transmission

    公开(公告)号:US12052109B2

    公开(公告)日:2024-07-30

    申请号:US17625301

    申请日:2019-08-06

    CPC classification number: H04L1/188 H04L1/1812 H04L1/1854 H04W72/23

    Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of retransmission mechanism for configured grant uplink transmission. The method comprising transmitting, to a second device, a transport block while starting a configured grant retransmission timer for autonomous retransmission of the transport block; in response to receiving, from the second device, a feedback indicating unsuccessful reception of the transport block, adjusting expiry time of the configured grant retransmission timer without starting the autonomous retransmission of the transport block; determining whether scheduling information for retransmission of the transport block is received before the adjusted configured grant retransmission timer expires; and in response to determining that the scheduling information is received, retransmitting the transport block while stopping the configured grant retransmission timer. In this way, the retransmission in the Hybrid Automatic Repeat Request process could be performed according to the uplink grant scheduled by the network device and therefore the retransmission efficiency for configured grant uplink transmission in unlicensed spectrum can be improved.

    Method for scheduling retransmissions for configured grants in NR-unlicensed

    公开(公告)号:US11956086B2

    公开(公告)日:2024-04-09

    申请号:US17894573

    申请日:2022-08-24

    CPC classification number: H04L1/1887 H04W28/04 H04W72/1268 H04W72/23

    Abstract: In accordance with example embodiments of the invention there is at least a method and apparatus to perform receiving, by a network device, information comprising a multiple transmission time interval uplink grant with cyclic redundancy check bits scrambled by a radio network temporary identifier; determining, by the network device of a communication network, a subset of data transmissions of a previous burst of data transmissions to be retransmitted by the network device; and performing by the network device retransmission of the subset of data transmissions using scheduled resources of the uplink grant. In addition, to perform determining, by a network node of a communication network, information comprising a multiple transmission time interval uplink grant with cyclic redundancy check bits scrambled by a radio network temporary identifier to identify a subset of data transmissions of a previous burst of data transmissions to be retransmitted by a network device; and sending the information towards the network device for use in retransmission of the subset of data transmissions using scheduled resources of the uplink grant.

    Uplink bandwidth part switching on new radio unlicensed

    公开(公告)号:US11477818B2

    公开(公告)日:2022-10-18

    申请号:US17045464

    申请日:2018-04-06

    Abstract: In accordance with an example embodiment of the invention there is at least a method and apparatus to perform determining, by a network node, that at least one of frequency tuning, bandwidth part switching, or bandwidth switching is to be performed by at least one user equipment; and based on the determining, sending, by the network node, to the at least one user equipment one or more downlink slots, wherein the one or more downlink slots provide an indication of a time to perform the at least one of frequency toning, bandwidth part switching, or bandwidth switching by the at least one user equipment. Further, in accordance with another example embodiment of the invention there is at least a method and apparatus to perform receiving from a network node, by a user equipment, one or more downlink slots, wherein the one or more downlink slots comprises at least one of an uplink grant, a downlink assignment, and wherein the one or more downlink slots provide an indication of a time to perform at least one of a frequency tuning, bandwidth part switching, and bandwidth switching by at least one user equipment; based on the one or more downlink slots, performing, by the user equipment, the at least one of frequency tuning, bandwidth part switching, or bandwidth switching, and transmitting, by the user equipment, at least one uplink channel or a signal via a radio frequency chain based on the at least one of frequency tuning, bandwidth part switching, or bandwidth switching.

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