Wake up signal transmission for NR-light system

    公开(公告)号:US12127164B2

    公开(公告)日:2024-10-22

    申请号:US17642366

    申请日:2019-09-11

    IPC分类号: H04W68/02 H04W52/02

    CPC分类号: H04W68/025 H04W52/0229

    摘要: Methods, a remote unit and a base unit are disclosed. According to one embodiment, a method at a base nit, comprising: generating a wake up signal which indicates that a remote unit shall attempt to receive a paging message in a paging occasion, wherein the wake up signal is generated by L base sequences, each of the L base sequences is mapped to a base resource unit, where L is an integer, wherein the base resource unit includes M continuous Physical Resource Blocks (PRBs) in frequency domain and N continuous Frequency Division Multiplexing (OFDM) symbols within a slot in time domain, where M and N are integers; mapping the wake up signal to a frequency-time resource; and transmitting, to the remote unit, the mapped wake up signal in the frequency-time resource.

    METHOD AND APPARATUS FOR ERROR CASE HANDLING DURING MULTICAST HARQ RETRANSMISSION

    公开(公告)号:US20240340117A1

    公开(公告)日:2024-10-10

    申请号:US18294080

    申请日:2021-08-18

    发明人: Haipeng Lei

    IPC分类号: H04L1/1829 H04L12/18 H04W4/06

    摘要: Embodiments of the present disclosure relate to HARQ retransmission for a multicast service. According to some embodiments of the disclosure, a method performed by a UE may include: receiving, from a BS, a first DCI for scheduling a first transmission using a HARQ process number, wherein a CRC of the first DCI is scrambled by a first RNTI; receiving, from the BS, a third DCI for scheduling a third transmission using the HARQ process number, wherein a CRC of the third DCI is scrambled by a third RNTI specific to the UE; and determining whether the third transmission is a retransmission of the first transmission or a retransmission of a second transmission scheduled by a second DCI, wherein the second DCI schedules the second transmission using the HARQ process number, a CRC of the second DCI is scrambled by a second RNTI common to a group of UEs including the UE.

    Method and apparatus for wake-up signals

    公开(公告)号:US12058618B2

    公开(公告)日:2024-08-06

    申请号:US17280032

    申请日:2018-11-12

    IPC分类号: H04W52/02 H04W4/70 H04W68/00

    摘要: Method and apparatus for UE group wake up signals are disclosed. The apparatus includes a processor that determines a first time slot (w0) and a first frequency location for a first wake up signal; and a transmitter that transmits the first wake up signal starting from the first time slot (w0) and the first frequency location; wherein the first wake up signal is associated with a paging message and ends at a second time slot minus one (g0−1) with a first maximal duration; wherein a first time offset of the second time slot (g0) and a start of a time slot of the paging message is determined by at least one of: a second time offset of the second time slot to a third time slot for a second wake up signal, a second maximal duration of the second wake up signal, a presence of the second wake up signal, and a paged group number associated with the paging message; wherein the transmitter further transmits the paging message.

    Determining channel statistics for clear channel assessments

    公开(公告)号:US12048003B2

    公开(公告)日:2024-07-23

    申请号:US17279952

    申请日:2019-04-04

    IPC分类号: H04W74/0808

    CPC分类号: H04W74/0808

    摘要: Apparatuses, methods, and systems are disclosed for determining channel statistics for clear channel assessments. One method (900) includes determining (902), by an apparatus (102), channel statistics corresponding to a plurality of listen-before-talk channel access types, a plurality of channel access priorities, a plurality of frequency ranges, or some combination thereof. The channel statistics indicate whether clear channel assessments for transmission on a shared resource are successful. The method (900) includes transmitting (904) information corresponding to the channel statistics to a network device.

    METHOD AND APPARATUS FOR DL AND UL SCHEDULING AND TRANSMISSION

    公开(公告)号:US20240205911A1

    公开(公告)日:2024-06-20

    申请号:US18022237

    申请日:2020-09-30

    发明人: Haipeng Lei

    摘要: Embodiments of the present disclosure relate to methods and apparatuses for DL and UL scheduling and transmission. According to some embodiments of the disclosure, a method for wireless communications performed by a UE may include: receiving a downlink control information (DCI) format for scheduling a transport block (TB); and determining whether the DCI format schedules the TB on a super slot or a slot, wherein the super slot includes a plurality of consecutive slots in a time domain resource.

    Method and apparatus for HARQ-ACK codebook reduction

    公开(公告)号:US12003328B2

    公开(公告)日:2024-06-04

    申请号:US17441566

    申请日:2019-03-29

    摘要: Embodiments of the present disclosure relate to methods and apparatuses for HARQ-ACK codebook reduction. According to an embodiment of the present disclosure, a method can include: transmitting a plurality of uplink data channels to a BS; and receiving a HARQ-ACK codebook in first DCI indicating downlink feedback. At least one of the plurality of uplink data channels is configured by the BS, and each uplink data channel is associated with each HARQ process. The HARQ-ACK codebook includes at least two sub-codebooks: a first sub-codebook including TB-level HARQ-ACK information bits for a first set of HARQ processes and a second sub-codebook including CBG-level HARQ-ACK information bits for a second set of HARQ processes. The first DCI has the same size with the second DCI for scheduling uplink data transmission. Embodiments of the present disclosure can ensure both UE side and BS side have the same understanding on the reduced HARQ-ACK codebook.

    HARQ-ACK transmission on unlicensed spectrum

    公开(公告)号:US11888625B2

    公开(公告)日:2024-01-30

    申请号:US17279581

    申请日:2018-12-28

    摘要: Methods and apparatuses for HARQ-ACK codebook transmission on unlicensed spectrum are disclosed. A remote unit comprising: a receiver that receives, from a base unit, one or multiple downlink transmissions within a channel occupancy time initiated by the base unit, a first message indicating a first candidate opportunity for transmission of a Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) codebook corresponding to the one or multiple downlink transmissions and a second message indicating a number of allowed opportunities for transmission of the HARQ-ACK codebook; a processor that determines the HARQ-ACK codebook and a number of total candidate opportunities for transmission of the HARQ-ACK codebook; and a transmitter that, in response to a channel access for the first candidate opportunity being successful, transmits the HARQ-ACK codebook in the first candidate opportunity, and, in response to the channel access for the first candidate opportunity being failed and the number of the total candidate opportunities being larger than one, attempts to transmit the HARQ-ACK codebook in a second candidate opportunity.