Abstract: Various solutions for dynamic physical downlink control channel (PDCCH) monitoring with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a switching group configuration indicating a group of serving cells which are bundled. The apparatus may receive a first configuration and a second configuration. The apparatus may perform control signal monitoring according to the first configuration. The apparatus may determine to switch to the second configuration on a first serving cell of the group of serving cells according to an indication associated with the first serving cell. The apparatus may apply the switching to all serving cells within the group of serving cells according to the indication associated with the first serving cell.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, in an active down-link bandwidth part, a random access response from a base station indicating an up-link resource in an active up-link bandwidth part for transmitting a random access message. The UE generates the random access message based on a numerology of the active up-link bandwidth part. The UE transmits the random access message at the up-link resource in the active up-link bandwidth part.

Abstract: A method for data transmission of a random access procedure for a user equipment of a wireless communication system is disclosed. The method comprises transmitting a preamble and data of the random access procedure in one message to a network of the wireless communication system, wherein the step of transmitting the preamble and the data comprises transmitting the data with the same numerology as that of the preamble.

Abstract: An apparatus (e.g., a user equipment (UE)) maps a plurality of mutually orthogonal sequences to each of a plurality of physical resource blocks (PRBs) within an interlace. The apparatus then performs a physical uplink control channel (PUCCH) transmission in a New Radio unlicensed spectrum (NR-U). The apparatus also receives an assignment of a set of sequences for each PRB of the plurality of PRBs from a wireless network. In response, the apparatus performs an uplink control information (UCI) transmission via the PUCCH in the NR-U.

Abstract: A wireless communication method for a user equipment (UE) includes obtaining, by the UE, a first search space configuration provided by a base station through remaining minimum system information (RMSI) or a handover (HO) command; and monitoring and receiving, by the UE, physical downlink control channels (PDCCHs) in a random access channel (RACH) procedure according to the first search space configuration.

Abstract: Aspects of the disclosure provide a method and an apparatus. For example, the apparatus can include receiving circuitry and processing circuitry. The receiving circuitry can be configured to receive from a cell a Q number and one or more SSBs within DRS transmission windows associated with the cell. The processing circuitry can be configured to, for each of the DRS transmission windows, perform a modulo operation on position indexes of the SSB with the Q number to determine SSB beam indexes (SBIs) of the SSBs. A remainder of each of the position indexes is an SBI of one of the SSBs that corresponds to the position index. The processing circuitry can be further configured to combine RRM measurements of the SSBs within the DRS transmission windows based on the SBIs of the SSBs to determine the quality of the cell.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, through a non-physical layer signaling, a configuration indicating to receive a first reference signal in a set of OFDM symbols in a first slot. The UE attempts to detect a physical layer signaling in the first slot or in a second slot prior to the first slot. The UE refrains from conducting measurements of the first reference signal, when the physical layer signaling is detected by the UE and includes a first indication.

Abstract: Aspects of the disclosure provide apparatuses and methods for wireless communications. One apparatus includes processing circuitry that selects one or more first available radio link monitoring reference signal (RLM-RS) samples from a plurality of received RLM-RS samples based on signal qualities of the one or more first available RLM-RS samples. The one or more first available RLM-RS samples are received within a first evaluation period. The processing circuitry determines whether a total number of the one or more first available RLM-RS samples is less than a target number. When the total number of the one or more first available RLM-RS samples is determined to be less than the target number, the processing circuitry determines a second evaluation period that is greater than the first evaluation period, and performs an RLM procedure in an unlicensed band within the second evaluation period.

Abstract: A method can include receiving one or more downlink control informations (DCIs) that are associated with first downlink transmissions belonging to a first hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback group at a user equipment (UE) in a wireless communication system, receiving a first request that indicates a first group index (GI) of the first HARQ-ACK feedback group and a first HARQ-ACK transmission opportunity (TxOP), and transmitting first acknowledge bits for acknowledging receptions of downlink transmissions belonging to the first HARQ-ACK feedback group over the first HARQ-ACK TxOP indicated by the first request.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receives, from a base station, a timing advance command on a first downlink component carrier in a first time slot measured from a perspective of a first uplink component carrier. The UE determines a number of slots between the first time slot and a second time slot measured from the perspective of the first uplink component carrier based on at least one of: a first time duration allocated to the UE for decoding a downlink data channel, and a second time duration allocated to the UE for preparing an uplink data channel. The UE applies a timing advance based on the timing advance command on the first uplink component carrier or a second uplink component carrier in the second time slot.

Abstract: Techniques and examples of channel multiplexing within interlace for New Radio (NR) unlicensed spectrum (NR-U) operation are described. An apparatus (e.g., user equipment (UE)) determines which sub-interlace of multiple sub-interlaces in each of a plurality of interlaces is assigned to the apparatus. The apparatus then performs an uplink (UL) transmission to a wireless network in an NR-U using the assigned sub-interlace in each of the plurality of interlaces. Each of the plurality of interlaces may be divided into respective multiple sub-interlaces with channel multiplexing.

Abstract: A wireless communication method, base station, and user equipment (UE) for physical downlink control channel (PDCCH) in random access channel (RACH) procedure are provided. The UE may include a processor. The processor may obtains a first control resource set (CORESET) configuration for physical downlink control channels (PDCCHs) in the RACH procedure and obtaining a first search space configuration for the PDCCHs in the RACH procedure from a base station to monitor and receive the PDCCHs in the RACH procedure.

Abstract: A method for a Physical Random Access Channel (PRACH) retransmission, executed by a UE wirelessly transmitting and receiving to and from a cellular station, operates by performing a first PRACH transmission or retransmission using a first spatial domain transmission filter on first PRACH resources which are associated with a first downlink reference signal. After the first PRACH transmission or retransmission, the method performs a second PRACH retransmission using a second spatial domain transmission filter on second PRACH resources which are associated with a second downlink reference signal. Finally, method operates without incrementing a power ramping counter in response to the UE selecting the second spatial domain transmission filter different from the first spatial domain transmission filter, or incrementing the power ramping counter in response to the UE selecting the second downlink reference signal different from the first downlink reference signal.

Abstract: A method of physical random-access channel (PRACH) preamble retransmission for new radio (NR) is proposed. A power ramping counter is introduced in addition to a preamble transmission counter for a RACH procedure. A UE determines the preamble TX power based on the power ramping counter. The UE updates the power ramping counter based on each PRACH transmission condition, which comprises both a selected DL beam and a selected UL beam for preamble transmission. The power ramping counter is incremented by one if the transmission condition remains the same as a previous PRACH preamble transmission. On the other hand, the power ramping counter remains unchanged if the transmission condition is different from a previous PRACH preamble transmission.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE determines that a random access event has occurred. The UE detects one or more down-link reference signals that are UE-specifically configured or predefined. The UE further selects a first message that is associated with a first down-link reference signal of the one or more down-link reference signals, the first down-link reference signal being quasi-colocated with a first DMRS of a serving control channel of the UE. The UE sends the first message to a base station to request a random access to the base station.

Abstract: Various novel concepts and schemes pertaining to non-orthogonal multiple access for wireless communications are described. A group orthogonal coded access (GOCA) scheme is introduced to reduce multi-user interference (MUI) and improve performance. A repetition division multiple access (RDMA) scheme is introduced to differentiate user equipment (UEs) by different repetition patterns. A low-density spreading (LDS) scheme is introduced to reduce MUI and improve performance.

Abstract: A User Equipment (UE), and associated method, including a wireless transceiver, configured to perform wireless transmission and reception to and from a cellular station. A controller is configured to use a first preamble to perform a synchronous transmission on a PRACH to the cellular station via the wireless transceiver, and use a second preamble to perform either of at least two different types of transmission, the two different types of transmission comprising an asynchronous transmission and a synchronous transmission to the cellular station via the wireless transceiver; wherein the controller is further configured to receive a random access response to the synchronous transmission from the cellular station via the wireless transceiver, and wherein a Timing Advance (TA) estimation is not required for the synchronous transmission.

Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a cellular station. The controller uses first Physical Random Access Channel (PRACH) resources to perform a first PRACH transmission or retransmission, and switches to use second PRACH resources to perform a second PRACH retransmission subsequent to the first PRACH transmission or retransmission.

Abstract: A method of beam failure recovery request (BFRQ) transmission is proposed. UE can search for UE-specific control channel in a search space that is signaled specifically for monitoring network response of the BFRQ. Furthermore, configurations indicated specifically for BFRQ can be carried by dedicated signaling such as high-layer radio resource control (RRC) signaling. After successfully rebuilding connection, UE assumes the demodulation reference signal (DMRS) ports of UE-specific control channel to be spatially quasi-co-located (QCL-ed) with the reference signals identified during the beam failure recovery procedure.

Abstract: Aspects of the disclosure further provide an apparatus and a method for wireless communication. The apparatus includes processing circuitry that receives, from a base station (BS), a downlink (DL) grant scheduling an uplink (UL) transmission to the BS. The DL grant indicates a first type of channel access procedure for the UL transmission. The processing circuitry performs a channel access procedure for the UL transmission according to the first type of channel access procedure indicated by the DL grant.