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公开(公告)号：US11652576B2
公开(公告)日：2023-05-16
申请号：US17264630
申请日：2018-08-01
IPC分类号： H04L1/18 , H04B7/0456 , H04W74/08 , H04L1/1812 , H04L1/1867
CPC分类号： H04L1/1819 , H04B7/0456 , H04L1/1896 , H04W74/0816
摘要： Method and apparatus for HARQ-ACK codebook determination are disclosed. One method of UE includes receiving one or more downlink transmissions; determining a first set of HARQ-AC feedback timing values for generating a first HARQ-ACK codebook; performing a first Listen-Before-Talk (LBT) for transmitting the first HARQ-ACK codebook in a first transmission opportunity, wherein the first HARQ-ACK codebook includes the HARQ-ACK feedback corresponding to the one or more downlink transmissions; transmitting the first HARQ-ACK codebook in the first transmission opportunity in response to the first LBT being successful; and determining a second set of HARQ-ACK feedback timing values for generating a second HARQ-ACK codebook and performing a second LBT for transmitting the second HARQ-ACK codebook in a second transmission opportunity in response to the first LBT being unsuccessful, wherein the second HARQ-ACK codebook includes the HARQ-ACK feedback corresponding to the one or more downlink transmissions.
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公开(公告)号：US20220304059A1
公开(公告)日：2022-09-22
申请号：US17638153
申请日：2019-09-30
摘要： The present application relates to a method and apparatus for sharing channel occupancy time. One embodiment of the subject application provides a method performed by a User Equipment (UE) for wireless communication, comprising: receiving, from a base station (BS), a first indicator requesting the UE to share a channel occupancy time (COT) for downlink transmission within the COT, wherein the COT is initiated by the UE for transmitting uplink data; determining a first channel access priority class (CAPC) value; initiating the COT by performing a channel access procedure using the first CAPC value; and transmitting, to the BS, at least a part of the uplink data in the COT.
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公开(公告)号：US20220330297A1
公开(公告)日：2022-10-13
申请号：US17634038
申请日：2019-08-23
摘要： The present application relates to a method and apparatus for determining a HARQ-ACK codebook. One embodiment of the subject application provides a method including receiving a signal requesting transmission of Hybrid Automatic Repeat request-Acknowledgement (HARQ-ACK) feedback for both a first group of Physical Downlink Shared Channel (PDSCH) transmissions and a second group of PDSCH transmission in a HARQ-ACK codebook, wherein each PDSCH transmission of the first group of PDSCH transmissions has an associated Downlink Control Information (DCI) indicating a first group index, and each PDSCH transmission of the second group of PDSCH transmissions has an associated DCI indicating a second group index; and transmitting the HARQ-ACK codebook.
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公开(公告)号：US20220295558A1
公开(公告)日：2022-09-15
申请号：US17634032
申请日：2019-08-27
摘要： Methods, a remote unit and a base unit are disclosed. According to one embodiment, a method at a remote nit, comprising: receiving, from a base unit, a first signaling for configuring a plurality of subbands for transmitting uplink data; performing a first channel access procedure on each of the plurality of subbands and obtaining a channel occupancy time (COT) on a first set of subbands, wherein the first set of subbands comprises one or more subbands of the plurality of subbands with the first channel access procedures being successful; and transmitting, to the base unit, the uplink data on the first set of subbands within the COT; and transmitting, to the base unit, uplink control information (UCI) associated to the uplink data, wherein the UCI includes a first indicator indicating the first set of subbands.
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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.
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公开(公告)号：US11888625B2
公开(公告)日：2024-01-30
申请号：US17279581
申请日：2018-12-28
IPC分类号： H04L1/1812 , H04L1/1867 , H04W72/0446 , H04W74/08 , H04W72/23
CPC分类号： H04L1/1819 , H04L1/1896 , H04W72/0446 , H04W72/23 , H04W74/0816
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.
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公开(公告)号：US11991690B2
公开(公告)日：2024-05-21
申请号：US17273896
申请日：2018-09-07
IPC分类号： H04W72/00 , H04L5/00 , H04W72/0446 , H04W72/1268 , H04W72/23 , H04W72/50 , H04W74/0816
CPC分类号： H04W72/1268 , H04L5/0051 , H04W72/0446 , H04W72/23 , H04W72/535 , H04W74/0816
摘要： The present application relates to method and apparatus for flexible uplink transmission on unlicensed spectrum. One embodiment of the present disclosure provides an apparatus comprising: a receiver that receives an uplink grant for scheduling uplink transmission; a processor that: determines, based on the uplink grant, at least one candidate starting position in a scheduled time slot for the uplink transmission, wherein a candidate starting position, among the at least one candidate starting position, is determined based on a location of a Demodulation Reference Signal (DMRS) symbol; and determines a starting position for the uplink transmission from the at least one candidate starting position based on a result of performing a listen before talk (LBT) procedure on the scheduled time slot; and a transmitter that starts the uplink transmission in the scheduled time slot from the determined starting position.
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公开(公告)号：US11991008B2
公开(公告)日：2024-05-21
申请号：US17279584
申请日：2018-12-28
IPC分类号： H04L1/1829 , H04L1/1607 , H04L1/1812 , H04L1/1867
CPC分类号： H04L1/1864 , H04L1/1812 , H04L1/1896
摘要： Methods, a remote unit and a base unit are disclosed. According to one embodiment, 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 processor that determines a downlink association set for a HARQ-ACK codebook, excludes one or more downlink slots from the downlink association set based on a predefined rule, and generates the HARQ-ACK codebook corresponding to the downlink association set, wherein the HARQ-ACK codebook comprises HARQ-ACK information bits for the one or multiple downlink transmissions; and a transmitter that transmits the HARQ-ACK codebook to the base unit.
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公开(公告)号：US20220330340A1
公开(公告)日：2022-10-13
申请号：US17640580
申请日：2019-09-27
摘要： The present application relates to a method and apparatus for uplink data transmission or reception. One embodiment of the subject application provides a method for uplink data transmission performed by a User Equipment (UE), comprising: receiving, from a base station (BS), a first signalling indicating a first channel access priority class value, wherein the first channel access priority class value is used by the BS for initiating a channel occupancy; receiving, from the BS, a second signalling scheduling a Physical Uplink Shared Channel (PUSCH) for transmitting uplink data; performing a channel access procedure; and transmitting, to the BS, the uplink data on the PUSCH in response to the channel access procedure being successful.
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10.发明申请公开(公告)号：US20220256578A1
公开(公告)日：2022-08-11
申请号：US17630002
申请日：2019-08-02
摘要： Embodiments of the present disclosure relate to method and apparatus for HARQ feedback. According to an embodiment of the present disclosure, a method can include: receiving control information at least for a plurality of physical uplink shared channel (PUSCH) transmissions in an uplink transmission burst; and transmitting the plurality of PUSCH transmissions in the uplink transmission burst based on the control information, wherein one of the plurality of PUSCH transmissions includes an uplink control information (UCI) signaling at least associated with all PUSCH transmissions in an initial slot of the uplink transmission burst. Embodiments of the present disclosure can reduce the overhead for configured grant based uplink transmission.
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