Abstract: The present application relates to method and apparatus for fallback operation for semi-static HARQ-ACK codebook determination. One embodiment of the present disclosure provides an apparatus comprising: a receiver that receives at least one down-link (DL) transmission within a DL association set; a processor that determines whether to use a fallback hybrid automatic repeat request acknowledgement (HARQ-ACK) transmission; and a transmitter that transmits a first HARQ-ACK codebook on a first resource for the DL association set in response to the fallback HARQ-ACK transmission being used or a second HARQ-ACK codebook on a second resource for the DL association set in response to the fallback HARQ-ACK transmission not being used.

Abstract: 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.

Abstract: The present application relates to method and apparatus for subband based channel access on unlicensed spectrum. One embodiment of the present disclosure provides a method comprising: receiving a downlink control information (DCI) for scheduling transmission of data on a set of bandwidth portions of a carrier, wherein the carrier comprises a plurality of bandwidth portions; performing a listen-before-talk (LBT) test on the set of bandwidth portions; and transmitting the data on one or more bandwidth portions of the set of bandwidth portions based on a result of the LBT test.

Abstract: Apparatuses, methods, and systems are disclosed for resource reservation. One apparatus includes a receiver that receives an indication of resource reservation for uplink communication. The indication is based on information reported from a first remote unit. The apparatus also includes a processor that determines a resource based on the indication. The apparatus includes a transmitter that transmits data on the resource.

Abstract: 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.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for a resource conflict indicator transmission in a sidelink wireless communication system in 3GPP (3rd Generation Partnership Project) 5G networks. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) includes: receiving two or more control signals from two or more UEs, wherein one control signal received from each UE within the two or more UEs indicates one or more reserved resources for the each UE; detecting whether there is a resource conflict among reserved resources for the two or more UEs; upon detecting the resource conflict, selecting a transmission resource from a set of resources, wherein each resource within the set of resources is used for a resource conflict indictor transmission; and transmitting, to at least one UE within the two or more UEs, a resource conflict indictor on the selected transmission resource.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for NACK-only based HARQ-ACK feedback multiplexing. According to some embodiments of the disclosure, a method may include: receiving, from a BS, a plurality of PDSCHs, wherein each PDSCH is associated with a corresponding PUCCH resource for the UE transmitting NACK-based HARQ-ACK feedback; determining a PUCCH resource for transmitting a NACK for the plurality of PDSCHs in response to at least one PDSCH of the plurality of PDSCHs being incorrectly decoded; and transmitting, to the BS, the NACK on the PUCCH resource.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for selecting a transmission for a resource conflict indication in a sidelink wireless communication system in 3GPP (3rd Generation Partnership Project) 5G networks. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) includes: determining a set of candidate transmissions to be transmitted on a transmission occasion in a time domain, each transmission within the set of candidate transmissions is used for a resource conflict indication; determining another set of candidate transmissions to be transmitted on the transmission occasion, each transmission within the abovementioned another set of candidate transmissions is used for HARQ feedback information; selecting a subset of transmissions from at least one of the set of candidate transmissions and the abovementioned another set of candidate transmissions; and transmitting the subset of transmissions on the transmission occasion.

Abstract: The subject disclosure relates to a method and apparatus for determining a one shot HARQ-ACK codebook. In one embodiment, the subject disclosure provides a method performed by a User Equipment (UE), including receiving, from a base station (BS), a signaling configuring a plurality of Downlink (DL) Hybrid Automatic Repeat reQuest (HARQ) processes, and Downlink Control Information (DCI) requesting HARQ-ACK feedback for each of the plurality of DL HARQ processes; for each of the plurality of DL HARQ processes, generating the HARQ-ACK feedback based on an associated New Data Indicator (NDI) bit and HARQ-ACK information bit; and transmitting, to the BS, a HARQ-ACK codebook comprising the HARQ-ACK feedback for each of the plurality of DL HARQ processes.

Abstract: Apparatuses, methods, and systems are disclosed for efficient cross-carrier scheduling of multiple slots. One apparatus includes a transceiver and a processor coupled with the transceiver, the processor configured to cause the apparatus to transmit a first control signal to a remote unit, the first control signal indicating a maximum number of HARQ processes, and to transmit a second control signal to the remote unit, where the second control signal is transmitted on a first carrier and where the second control signal schedules a first number of slots on a second carrier. The processor aggregates every two or more of the scheduled first number of slots to a single HARQ process in response to the first number being larger than the maximum number of HARQ processes.

Abstract: Embodiments of the present disclosure relate to hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback transmission. According to some embodiments of the disclosure, a method may include: receiving, from a base station (BS), configuration information for a sub-group of UEs, wherein the sub-group of UEs comprises the UE; receiving, from the BS, a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), wherein the PDSCH is received by a plurality of UEs which are divided into a plurality of sub-groups of UEs comprising the sub-group of UEs; determining a time domain resource for transmitting HARQ-ACK feedback for the PDSCH; and transmitting, to the BS, the HARQ-ACK feedback for the PDSCH on the time domain resource.

Abstract: Methods and apparatus for sidelink communication are disclosed. One method of a Tx/Rx UE comprises reserving resources for one or more sidelink (SL) data transmissions and resources for decoding result feedbacks corresponding to the one or more SL data transmissions; transmitting sidelink control information (SCI) to a second apparatus, which indicates the resources for the SL data transmissions; and receiving at least one of the decoding result feedback and a pre-emption indicator. Another method of a Tx/Rx UE comprises receiving SCI, which indicates resources for the SL data transmissions, from a first apparatus; and transmitting at least one of the decoding result feedback and a pre-emption indicator.

Abstract: The present application relates to a method and an apparatus for monitoring DCI. The method includes: receiving a DCI from a BS, wherein the DCI includes an indicator; determining one or more sensing beams used by the BS to perform a LBT procedure according to the indicator and a higher layer signaling; and determining one or more transmission beams used by the BS to transmit PDCCH according to the indicator and the higher layer signaling, wherein the one or more transmission beams are within a spatial region of a CO initiated by the BS after completing the directional LBT with the one or more sensing beams.

Abstract: Method and apparatus for data transmission are disclosed. One method of a network equipment includes scrambling and modulating coded bits to generate data; mapping the data into a first resource block and a second resource block, both of which forms a resource block, wherein the first resource block is from a symbol with an indicated index to a symbol with an end index of the resource block, the second resource block is from a symbol with a start index to a symbol with the indicated index minus one of the resource block; and transmitting the data in the resource blocks.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for a sidelink positioning mechanism in 3GPP (3rd Generation Partnership Project) 5G and/or new radio (NR) networks. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) includes: receiving at least one of positioning reference signal (PRS) configuration information and downlink control information (DCI); generating sidelink control information (SCI) based on the at least one of the PRS configuration information and the DCI, wherein the SCI indicates a resource in time and frequency domains for a sidelink-positioning reference signal (SL-PRS); and transmitting the SCI.

Abstract: Embodiments of the present disclosure relate to methods, apparatuses, and media for handling Listen Before Talk (LBT) failure for sidelink transmission. A method performed by a terminal device comprises in response to at least one LBT failure during a sidelink transmission procedure, determining one or more resources for transmitting data that has failed to be transmitted from the terminal device due to the at least one LBT failure and transmitting the data from the terminal device via the one or more resources as determined. In the present disclosure, a mechanism for data retransmission cause by the LBT failure in the sidelink commutation is specified, which is benefit for the sidelink to co-exist with other wireless technologies in NR.

Abstract: Embodiments of the present disclosure relate to Multicast and Broadcast Service (MBS) services. The method includes receiving configuration information from a network device, the configuration information relating to a multicast and broadcast service (MBS) service provided in one or more serving cells. The method also includes receiving downlink control information from the one or more serving cells in which the MBS service is provided. The method further includes receiving the MBS service that is provided in the one or more serving cells based on the downlink control information.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for a pre-emption check procedure for a sidelink transmission in 3 GPP (3rd Generation Partnership Project) 5G networks. According to an embodiment of the present disclosure, a method performed by a user equipment (UE) includes: receiving, from another UE, information associated with a pre-emption check procedure on another reserved resource of the abovementioned UE; and making an adjustment relating to a transmission on a reserved resource of the UE according to the information.

Abstract: Embodiments of the present disclosure relate to HARQ-ACK codebook determination. According to some embodiments of the disclosure, a method may include: receiving a first plurality of DCI formats for scheduling a first group of PDSCHs and a second plurality of DCI formats for scheduling a second group of PDSCHs, wherein a CRC of each of the first plurality of DCI formats is scrambled by a first RNTI and a CRC of each of the second plurality of DCI formats is scrambled by a second RNTI different from the first RNTI, and wherein HARQ-ACK feedback for the first group of PDSCHs and HARQ-ACK feedback for the second group of PDSCHs are to be transmitted in a same HARQ-ACK codebook; generating a first HARQ-ACK sub-codebook for the first group of PDSCHs and a second HARQ-ACK sub-codebook for the second group of PDSCHs; and transmitting the HARQ-ACK codebook including the first HARQ-ACK sub-codebook and the second HARQ-ACK sub-codebook.

Abstract: Embodiments of the present application relate to a method and apparatus for hybrid automatic repeat request-acknowledge (HARQ-ACK) feedback for carrier aggregation (CA). A method according an embodiment of the present application may include receiving at least one downlink transmission; generating a first HARQ-ACK sub-codebook for the at least one downlink transmission; determining whether to generate a second HARQ-ACK sub-codebook; and transmitting a HARQ-ACK codebook. The HARQ-ACK codebook includes the first HARQ-ACK sub-codebook in response to the second HARQ-ACK sub-codebook determined not to be generated, or includes the first HARQ-ACK sub-codebook and the second HARQ-ACK sub-codebook in response to the second HARQ-ACK sub-codebook determined to be generated. The present application avoids misunderstanding between a base unit and a remote unit when generating the HARQ-ACK feedback for CA.