Abstract: Minimum system information including at least cell access information to establish access with a cell can be transmitted, the minimum system information also including at least one indication indicating whether particular system information listed in scheduling information in the minimum system information is being broadcasted or not being broadcasted. A system information request message requesting transmission of non-minimum system information if the at least one indication indicates the non-minimum system information is not being broadcasted can be received, where the non-minimum system information may not be included in the minimum system information. The non-minimum system information can be transmitted either in response to the receiving of the system information request message or in response to the at least one indication indicating whether particular system information is being broadcasted.

Abstract: Various aspects relate to a device that receives a configured uplink grant from a base station for semi-persistent uplink transmissions, receives a configuration for a retransmission timer, receives a configuration of a next-generation NodeB (gNB) fixed frame period (FFP) for semi-static channel access in a shared spectrum, detects a downlink transmission burst within gNB-FFP, and obtains a medium access control protocol data unit for a configured uplink transmission that includes a first physical uplink shared channel (PUSCH) transmission. A communications manager establishes that a hybrid automatic repeat request process associated with the first PUSCH transmission is pending so as to preclude performance of the first PUSCH transmission in response to determinations that the first PUSCH transmission is associated with a gNB channel occupancy time (COT), there is a time gap between the downlink transmission burst within the gNB-COT, and the first PUSCH transmission is smaller than a time gap threshold.

Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method performed by a communication device, includes: receiving, from a base station, a first configuration information indicating a threshold to configure the communication device, wherein the threshold is associated with data volume; determining whether congestion happens at the communication device based on the threshold; and transmitting a congestion indication to a first parent node via a Backhaul Adaptation Protocol (BAP) signaling message when it is determined that the congestion happens at the communication device.

Abstract: A method and apparatus for handling security keys for individual bearers of the user equipment include dividing between a plurality of different sub-groups, a plurality of individual bearers, each sub-group having a different base value from which the security keys for the associated bearers are derived. When the security keys associated with the individual bearers of one particular sub-group are refreshed, the security keys of the individual bearers, which are not a part of the particular sub-group do not need to be refreshed.

Abstract: A radio resource control message comprising an indication of a random access channel preamble, a reference signal resource, or both can be received. A reference signal can be received on the reference signal resource. A random access channel preamble can be selected based at least in part on the reference signal satisfying a threshold. The selected random access channel preamble can be transmitted during a random access procedure.

Abstract: The present disclosure is directed to a method and apparatus for HARQ-ACK and SR transmission. According to an embodiment of the present disclosure, a method may include: configuring a first PUCCH resource for a HARQ-ACK transmission and a second PUCCH resource for a SR transmission; determining whether the HARQ-ACK transmission in the first PUCCH resource overlaps with the SR transmission in the second PUCCH resource in time domain; and in response to that the HARQ-ACK transmission in the first PUCCH resource overlaps with the SR transmission in the second PUCCH resource, at least dropping the exactly overlapped part of one of the HARQ-ACK transmission in the first PUCCH resource and the SR transmission in the second PUCCH resource.

Abstract: A method and apparatus provides for establishing a communication connection between the network entity and the user equipment, while the user equipment has established and is maintaining an alternative communication connection with another network entity associated with a second one of the multiple networks. Flow management information is received from a shared common control element of the user equipment, which manages parallel user equipment activity including a flow of information between the user equipment and each of the multiple networks via the respective communication connections. The user equipment is communicated with in a manner which is consistent with the flow management information received from the shared common control element.

Abstract: Apparatuses, methods, and systems are disclosed for discarding radio link control service data units. One method (700) includes sending (702) at least a portion of a radio link control service data unit. The method (700) includes receiving (704) an indication from a packet data convergence protocol layer to discard the radio link control service data unit after sending at least the portion of the radio link control service data unit. The method (700) includes, in response to receiving the indication to discard the radio link control service data unit, transmitting (706) information indicating to discard the radio link control service data unit.

Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method includes: receiving configuration information at a communication device, wherein the configuration information indicates routing configuration and bearer mapping configuration; detecting a failure on a first egress link between the communication device and a first next hop communication device of the communication device; re-routing first data intended to be transmitted on the first egress link, wherein the first data has not been acknowledged by a layer lower than a BAP layer of the communication device; reselecting a second egress link between the communication device and a second next hop communication device based on the routing configuration; reselecting an egress RLC channel of the second egress link based on bearer mapping configuration; and submitting the first data to the reselected egress RLC channel of the second egress link.

Abstract: An apparatus comprises a transmitter for transmitting a first message to a communication device, where the first message is a message within a random access procedure; a receiver for receiving a second message from the communication device in response to the first message; and a processor that increases a contention window value if the second message is not received in a time duration after the first message is transmitted; and that sets the contention window value to an initial value if the second message is received in the time duration after the first message is transmitted.

Abstract: A radio terminal in a radio communication system receives a physical downlink control signal comprising a control field and a new data indicator (NDI) field and determines that a value of the NDI field is one of a first value and a second value. A physical uplink shared channel signal is generated according to both a specific transport format and a specific redundancy version. The control field is used to determine the specific transport format when the NDI field is determined to be the first value, and the control field is used to determine the specific redundancy version when the NDI field is determined to be the second value.

Abstract: A handover command message can be received. The handover command message can include at least one handover condition. The at least one handover condition can include an indication that handover can occur after at least one beam failure. A handover procedure can be performed based on the at least one handover condition.

Abstract: A transceiver can transmit a broadcasted system information message including a restricted operator service access indication from a serving cell of a network. A controller can perform a radio resource control connection establishment procedure to receive an attach request message.

Abstract: A duplication deactivated cell restriction configuration can be received at a UE. The duplication deactivated cell restriction configuration can be a cell restriction configuration a UE shall apply for at least one LCH of a DRB for which PDCP duplication is deactivated. The duplication deactivated cell restriction configuration can be received when at least one DRB is configured with PDCP duplication. The DRB for which duplication is deactivated can be a DRB of the at least one DRB configured with PDCP duplication. The duplication deactivated cell restriction configuration the UE shall apply can be applied for the at least one LCH of a DRB for which PDCP duplication is deactivated.

Abstract: A set of reference signals can be received. Each of the set of reference signals can be periodically transmitted by a network entity. Information of a plurality of random access channel preambles and a plurality of reference signals from the set of reference signals can be received via a dedicated radio resource control message. At least one reference signal of the plurality of reference signals can be detected. A reference signal can be selected from the detected at least one reference signal. A random access channel preamble of the plurality of random access channel preambles can be transmitted in a contention-free random access procedure. The random access channel preamble for transmission can be determined based on the selected reference signal.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for multiple physical uplink shared channel (PUSCH) transmissions on unlicensed spectrum.

Abstract: A command can be received (910) from a network entity. The command can initiate a random access procedure and can include information of a type of random access procedure. The type of random access procedure can be selected from a 2-step random access procedure and a 4-step random access procedure. A MsgA transmission can be transmitted (920) in response to receiving the command when the type of random access procedure is the 2-step random access procedure.

Abstract: At least one common PUCCH resource set configuration can be received (1310) for a 2-step random access procedure. At least one common PUCCH resource set can be determined (1320) based on the at least one common PUCCH resource set configuration. A PRACH and a corresponding MsgA PUSCH can be transmitted (1330). A MsgB PDSCH can be received (1340) in response to the transmitted PRACH and MsgA PUSCH. The received MsgB PDSCH can be decoded (1350). A successRAR intended to the UE can be identified (1360) from the decoded MsgB PDSCH. A common PUCCH resource set of the at least one common PUCCH resource set and a PUCCH resource of the common PUCCH resource set can be determined (1370) based on the successRAR. At least HARQ-ACK feedback information for the MsgB PDSCH can be transmitted (1380) on the PUCCH resource.

Abstract: First transmission power can be determined (1110) for a first PRACH preamble in a 2-step random access procedure based on a first set of power control parameters. The first PRACH preamble can be transmitted (1120) in the 2-step random access procedure based on the first transmission power. A determination can be made (1130) to switch from the 2-step random access procedure to a 4-step random access procedure. Second transmission power can be determined (1140) based on the first set of power control parameters and a second set of power control parameters for a subsequent second PRACH preamble transmission for the 4-step random access procedure. The subsequent second PRACH preamble can be transmitted (1150) in the 4-step random access procedure based on the second transmission power.

Abstract: Apparatus and methods of Sidelink (SL) Buffer Status Report (BSR) reporting for New Radio (NR) Vehicle-to-Everything (V2X) Communication are disclosed. The apparatus includes: a processor that arranges buffer size information for sidelink (SL) transmission into a plurality of buffer groups based on a destination ID and at least one selected from a group consisting of: a cast type and a Hybrid Automatic Repeat Request (HARQ) feedback mode; and a transmitter that transmits the buffer size information, according to the buffer groups.