Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Accordingly, the embodiments herein disclose a method for handling a timer operation in a wireless communication system (300). The method includes receiving, by a UE (100), a signaling message from a base station (200). The signaling message includes an information about acquired COT of the base station (200). Further, the method includes indicating, by the UE (100), about the acquired COT to a MAC layer from a physical layer.

Abstract: Techniques are described herein for improved methods, systems, devices, and apparatuses that support procedures for configured grants. Generally, the described techniques may relate to restricting a number of retransmissions used during a hybrid automatic repeat request (HARQ) process or managing potential scheduling conflicts for the HARQ process from dynamic grants and configured grants. A device (e.g., a user equipment) may initiate a timer or a counter associated with a HARQ process for indicating that transmission attempts for the HARQ process are permitted. The device may identify a transmission occasion of a configured grant in an unlicensed frequency spectrum band that is associated with the HARQ process and may determine that the timer associated with the HARQ process is active. The device may perform a transmission attempt over the transmission occasion of the configured grant based on determining that the timer is active.

Abstract: Provided are methods and apparatuses for performing a communication in a wireless communication system. An IAB node of performing a communication, according to an embodiment, includes a transceiver and a processor coupled with the transceiver and configured to perform an authentication and a setup of an IP connectivity with an OAM (operations, administration and maintenance) server, in response to an architecture in which a DU (distribution unit) and a CU (central unit) are split, establish a F1 interface between a DU of the IAB node and a CU of an IAB donor, and provide a service to a UE based on a result of the establishment.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Accordingly the embodiments herein provides a method for handling a RAR in a wireless communication system (300).

Abstract: Methods and systems for routing data through IAB nodes 201, 202 in 5G communication networks. Embodiments herein allow routing data between a UE 206 and an IAB donor 200 though IAB nodes 201, 202 using adaptation layers of the IAB donor 200 and the IAB nodes 201, 202. The adaptation layers of the IAB donor 200 and the IAB nodes 201, 202 are configured by defining adaptation layer header and functionality. Mapping is performed between bearers/RLC channels of the UE 206 and the IAB node 202 and between bearers/RLC channels of the IAB nodes 201, 202 and the IAB donor 200. The means to perform the mapping is specified by the adaptation layers of either the IAB donor 200 or the IAB nodes 201, 202. The data is routed through the bearers/RLC channels. The embodiments include managing RLC layer functionality using either hop-by-hop ARQ or end-to-end ARQ.

Abstract: Techniques are described herein for improved methods, systems, devices, and apparatuses that support procedures for configured grants. Generally, the described techniques may relate to restricting a number of retransmissions used during a hybrid automatic repeat request (HARQ) process or managing potential scheduling conflicts for the HARQ process from dynamic grants and configured grants. A device (e.g., a user equipment) may initiate a timer or a counter associated with a HARQ process for indicating that transmission attempts for the HARQ process are permitted. The device may identify a transmission occasion of a configured grant in an unlicensed frequency spectrum band that is associated with the HARQ process and may determine that the timer associated with the HARQ process is active. The device may perform a transmission attempt over the transmission occasion of the configured grant based on determining that the timer is active.

Abstract: Wireless communications systems and methods related to monitoring a paging signal are provided. A wireless communication device may receive a first system information signal from a base station (BS) and may configure a counter with an initial counter value in response to receiving the first system information signal. Additionally, the wireless communication device may receive a second system information signal from the BS and may modify the counter value of the counter in response to receiving the second system information signal. The wireless communication device may monitor for a paging signal from the BS while the counter is outstanding.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The embodiments herein disclose methods and systems for enabling a user equipment (UE) to report a secondary node failure in a dual connectivity wireless network including a master node (MN) and a secondary node (SN), the method includes detecting a secondary cell group (SCG) failure.

Abstract: The present disclosure relates to wireless communications, and more particularly to enhancements to a random access channel (RACH) procedure for use in New Radio (e.g., 5G) communications in the unlicensed spectrum (also referred to as NR-U). The present disclosure provides a user equipment (UE) or network entity that determines an available RACH occasion (RO) within a slot for a message transmission according to one of a two-step RACH procedure or a four-step RACH procedure, wherein the available RO is adjacent to at least one unavailable RO within the slot. The UE or network entity may further perform, during the RO, the message transmission according to one of the two-step RACH procedure or the four-step RACH procedure.

Abstract: Wireless communications systems and methods related to configured transmissions in a shared radio frequency band are provided. A user equipment (UE) receives, from a base station (BS), an indication of a first configured resource in a shared radio frequency band for a communication in a first direction. The UE receives, from the BS, a first configuration to select between a validation of the first direction or an absence of an invalidation of the first direction for using the first configured resource for the communication. The UE communicates, with the BS, the communication in the first direction using the first configured resource based on the first configuration.

Abstract: Wireless communications systems and methods related to unscheduled uplink hybrid automatic repeat request (HARQ) data transmissions in a shared radio frequency band are provided. A user equipment (UE) determine priorities for a plurality of transport blocks (TBs) associated with a plurality of hybrid automatic repeat request (HARQ) processes for transmission during configured transmission periods. The UE transmits, to a base station (BS), the plurality of TBs in a shared radio frequency band during the configured transmission periods based on the determined priorities.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a plurality of slot-aggregated physical uplink shared channel (PUSCH) transmissions associated with a common transport block; receive a dynamic feedback information (DFI) transmission that includes hybrid automatic repeat request (HARQ) feedback associated with the plurality of slot-aggregated PUSCH transmissions, wherein the HARQ feedback is a HARQ acknowledgement (ACK) or a HARQ negative acknowledgement (NACK); determine whether one or more PUSCH transmissions, of the plurality of slot-aggregated PUSCH transmissions, satisfy a delay condition associated with receipt of the DFI transmission; and determine whether the HARQ feedback is valid based at least in part on whether the one or more PUSCH transmissions satisfy the delay condition. Numerous other aspects are provided.

Abstract: Enhancements to downlink feedback information (DFI) signaling is disclosed. According to the disclosed aspects, indications of DFI presence in downlink control information (DCI) messaging are provided that limit any increase to DCI overhead for uplink grants. In a first aspect, DFI presence may be signaled using unused or disallowed DCI variable states for indication of DFI presence. In another aspect, a separate bit may be added to a DCI message for indicating DFI presence. Additional aspects include repurposing DCI fields which are specific to cell radio network temporary identifier (C-RNTI)-based uplink grants, or may defining a new RNTI (e.g., DFI-RNTI) for indicating DFI presence. Further aspects may provide for radio resource control (RRC) signaling that configures which DCI variable state can be used to indicate DFI presence.

Abstract: Random access channel access and validity procedures are disclosed. In one aspect, the medium access control (MAC) indications multiple random access occasions (ROs) to user equipments (UEs) for random access transmissions. In such aspect, random access failure would only be declared if listen before talk (LBT) procedures for the random access transmission fail on all of the ROs indicated by the MAC layer. Similarly, in additional aspects, a UE will not apply a backoff value for any LBT failures for random access attempts that occur within an LBT time window. In further aspects, a UE may determine the validity of ROs that overlap with a discovery reference signal measurement timing configuration (DMTC) window. In such aspects, the UE may not use overlapping ROs or may determine a portion of the DMTC window that is not used for base station transmissions and declare the overlapping ROs with the unused portion valid.

Abstract: Wireless communications systems and methods related to bandwidth part (BWP) switching after data communication are provided. A user equipment (UE) receives, from a base station (BS) in a first bandwidth part (BWP), one or more data bursts and BWP switching information. The UE switches from the first BWP to a second BWP based on the BWP switching information after receiving the one or more data bursts. The UE communicates, with the BS, a communication in the second BWP after the switching.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates a number of bits to be used in an indication of at least one of a listen-before-talk (LBT) category or a channel access priority class to be used for uplink communications. The UE may receive the indication of at least one of the LBT category or the channel access priority class to be used for a transmission starting point associated with one or more uplink communications, wherein the indication includes the number of bits indicated in the configuration. The UE may perform an LBT procedure for an uplink communication, of the one or more uplink communications, transmitted at the transmission starting point, according to the LBT category or the channel access priority class. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a control channel resource configuration associated with an unlicensed spectrum, wherein the control channel resource configuration is associated with an indication of whether a resource to be used for an uplink control channel in the unlicensed spectrum is a fixed resource, a floating resource, or an adaptive resource. The UE may identify the resource based at least in part on the control channel resource configuration. The UE may transmit uplink control information on the identified resource. Numerous other aspects are provided.

Abstract: Techniques for a node to adjust or update its CW are provided. The node transmits at least one transmission during a channel occupancy time (COT). The node can determine or adjust a contention window (CW) size following the end of COT based on whether feedback for a transmission is received or could be scheduled during the COT.

Abstract: Techniques for defining a reference duration and one or more reference transmissions that are utilized for contention window update are provided to address these new features. An apparatus, such as a wireless device, determines a reference duration of a channel occupancy time (COT), the reference duration based at least in part on a subcarrier spacing (SCS) and based on reception of a physical downlink shared channel (PDSCH) transmission. The apparatus updates a contention window (CW) based at least in part on reception of the PDSCH transmission during the reference duration. For example, the apparatus may increase the CW when a negative acknowledgement (NACK) is received for the determined PDSCH in the COT and may assign CW with a predetermined minimum value (CW_min) when a positive acknowledgement (ACK) is received for the determined PDSCH.

Abstract: This disclosure provides systems, methods and apparatus, and computer programs encoded on computer storage media, for managing paging monitoring by a wireless device. In one aspect, the wireless device may receive a serving cell signal from a cell. The wireless device may determine a delay time based on the serving cell signal. The wireless device may monitor for the paging signal during the determined delay time. The wireless device may stop the monitoring for the paging signal upon or after expiration of the determined delay time. In some aspects, the wireless device may receive an indication of multiple paging signal monitoring occasions from the cell, which may include an indication of a number of synchronization signal blocks (SSBs) to be transmitted from the cell and a number of physical downlink control channel (PDCCH) monitoring occasions per SSB in a paging occasion.