Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The method may be performed by a UE. In certain configurations, the UE transmits, to a base station, a received timing difference (RTD) capability of the UE. The RTD capability indicates a RTD supported by the UE between a first cell and a timing reference cell. The UE receives, from the base station, an instruction of a configuration, which is determined according to the RTD capability of the UE. The UE performs the configuration according to the instruction. The RTD capability of the UE may include a parameter indicating the UE supporting advanced RTD capability or limited RTD capability.

Abstract: Methods and apparatus of performing spatial relation switching in new radio (NR) system is proposed. In one embodiment, a configured spatial relation of an uplink channel is Quasi-Co-Located (QCLed) to the source of a downlink reference signal (DL RS). In this QCLed relation, the active spatial relation switching shall differentiate known and unknown situation. In another embodiment, the configured spatial relation is QCLed to the root source of an uplink sounding reference signal (SRS). In this QCLed relation, the active spatial relation switching does not need to differentiate known and unknown situation. The proposed spatial relation switching shall apply for physical uplink shared channel (PUSCH), physical uplink control channel (PUCCH), and SRS transmission.

Abstract: Various solutions for half-duplex-frequency division duplex (HD-FDD) mode switch with respect to user equipment and network apparatus in mobile communications are described. An apparatus may report a capability of supporting full-duplex-frequency division duplex (FD-FDD) to a network node. The apparatus may receive a configuration from the network node configuring an operation mode. The apparatus may operate in an HD-FDD mode in an event that the configuration configures the HD-FDD mode. The apparatus may operate in an FD-FDD mode in an event that the configuration configures the FD-FDD mode.

Abstract: Aspects of the disclosure provide an electronic device including processing circuitry and a method. The processing circuitry can determine whether a collision is scheduled in one of a set of carriers at a same time with an SRS transmission switching process including an SRS transmission scheduled in a current carrier in the set of carriers. The set of carriers is activated for the electronic device. When no collision is determined to be scheduled in the set of carriers at the same time with the SRS transmission switching process, the processing circuitry can determine a SRS interruption duration for a victim carrier to be interrupted by the SRS transmission switching process based on a SRS transmission switching duration, a timing between the SRS transmission switching process and the victim carrier, a numerology of the current carrier, and a numerology of the victim carrier and transmit the SRS transmission.

Abstract: Techniques pertaining to the selective use of BWP interruptions for performing L1 measurements are described. A user equipment (UE) determines whether a resource for use to perform a Layer 1 (L1) measurement for a serving cell of a wireless communication network is within a corresponding active bandwidth part (BWP) of the resource. In response to determining that the resource is outside the corresponding active BWP of the resource, the UE reports to the wireless communication network that the UE needs an interruption to the corresponding active BWP of the resource.

Abstract: Examples pertaining to collision handling between multi-Universal Subscriber Identity Module (multi-USIM or MUSIM) gaps and Type-1 measurement gap (MG) in mobile communications are described. A multiple-Universal Subscriber Identity Modules (MUSIM) user equipment (UE) determines that there is a collision between a Type-1 MG and at least one MUSIM gap. The MUSIM UE then prioritizes the Type-1 MG or the at least one MUSIM gap to keep one of the Type-1 MG and the at least one MUSIM gap while dropping the other of the Type-1 MG and the at least one MUSIM gap.

Abstract: Apparatus and methods are provided for enhanced cell change procedure. In one novel aspect, downlink synchronization on the target cell is performed before performing one or more UE L1/L2/L3 processing procedures. In one embodiment, the command for cell change is a cell switch command. In one embodiment, the cell switch command is carried by a MAC control element (CE). In one embodiment, the command for cell change is a conditional handover command, and wherein the UE performs downlink synchronization on the target cell when at least one handover condition is met. In one embodiment, the cell switch procedure is a random access channel (RACH) based cell switch. In another embodiment, the cell switch procedure is a RACH-less cell switch procedure.

Abstract: A method of activating multiple secondary cells can include receiving on a primary cell (PCell) at a user equipment (UE) a first medium access (MAC) control element (CE) for activating a first secondary cell (SCell) and a second SCell for the UE in a wireless communication system. The first and second SCells can operate in a same band. No active serving cell operates on the same band for the UE. In response to that the first SCell is a known SCell, the second SCell is an unknown SCell, and both the first and second SCells operate in the same band that is a frequency range 2 (FR2) band, the first and second SCells can be activated in parallel without performing cell search and reference signal received power (RSRP) measurement and reporting over the first and second SCells.

Abstract: Techniques and examples of determination of receiver (RX) beam for radio link monitoring (RLM) based on available spatial quasi-co-location (QCL) information in New Radio (NR) mobile communications are described. An apparatus receives downlink (DL) signaling from a network. The apparatus determines whether to extend an evaluation period of RLM based on a quasi-co-location (QCL) association provided in at least the DL signaling. The apparatus then executes extension of the evaluation period of the RLM, or not, based on a result of the determining.

Abstract: A UE performs a cell activation process in a wireless network. The UE calculates a first automatic gain control (AGC) setting based on downlink signals from a base station. The downlink signals include a coarse beam reference signal, a fine beam reference signal, and a conversion indication that indicates a power conversion between the coarse beam reference signal and the fine beam reference signal. The UE further calculates a second AGC setting based on the first AGC setting and the conversion indication. The UE performs a cell search using one of the first AGC setting and the second AGC setting, and performs fine time-frequency tracking using the other of the first AGC setting and the second AGC setting.

Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.

Abstract: Examples pertaining to handling of multi-Universal Subscriber Identity Module (MUSIM) gaps collision in mobile communications are described. A multiple-Universal Subscriber Identity Modules (MUSIM) user equipment (UE) applies different priorities with respect to MUSIM gaps and legacy measurement gaps (MGs). The UE performs wireless communications such that a collision between MUSIM gaps and legacy MGs is handled.

Abstract: Examples pertaining to determining transmission configuration indicator (TCI) for received signal strength indicator (RSSI) measurement in mobile communications are described. A user equipment (UE) determines a quasi-co-location (QCL) assumption with respect to a received signal strength indicator (RSSI) responsive to not receiving a TCI from a network. The UE also performs an RSSI measurement based on the determined QCL assumption in an expanded Frequency Range 2 (FR2-2) band according to a 3rd Generation Partnership Project (3GPP) specification.

Abstract: Techniques and examples of determination of receiver (RX) beam for radio link monitoring (RLM) based on available spatial quasi-co-location (QCL) information in New Radio (NR) mobile communications are described. An apparatus receives downlink (DL) signaling from a network. The apparatus determines whether to extend an evaluation period of RLM based on a quasi-co-location (QCL) association provided in at least the DL signaling. The apparatus then executes extension of the evaluation period of the RLM, or not, based on a result of the determining.

Abstract: Examples pertaining to flexible interruption for layer 1 (L1) measurement in mobile communications are described. A user equipment (UE) reports to a network a need for an interruption in communications between the UE and the network. The UE then performs a measurement of one or more resources during the interruption.

Abstract: Apparatus and methods are provided for network controlled small gap (NCSG) configuration. In one novel aspect, the UE sends UE NCSG capability reports to the wireless network, receives a network NCSG configuration, which is based on the UE NCSG capability reports, and performs one or more measurements. In one embodiment, the UE NCSG capability report indicates whether the NCSG is supported by the UE, further includes the band combination for supported NCSG. In another embodiment, UE NCSG capability report further comprises a beam management type for each corresponding frequency band in frequency range-2 (FR2). The network NCSG configuration is received from a master node or a secondary node. In another embodiment, one configured NCSG overlaps with a configured measurement gap of the UE, the UE prioritizes the overlapped measurement gap or the NCSG based on predefined rules or information for the network.

Abstract: Apparatus and methods are provided for configuring and applying measurement weight factor for inter-frequency measurements. In one novel aspect, the UE applies measurement weight factors for inter-frequency measurements within configured measurement gap occasions. In one embodiment, the UE receives one or more measurement configurations, which configure a plurality of measurement objects (MOs) to be measured in one or more measurement gaps, obtains a measurement weight factor for each MO, wherein a set of measurement weight factors is included in the one or more measurement configurations; and performs inter-frequency measurements within configured measurement gaps applying corresponding measurement weight factor for each MO. In one embodiment, the set of measurement weight factors are configured for each frequency layer or for each MO. In one embodiment, each measurement weight factor for the same MO is determined based on one or more weight conditions.

Abstract: Repeater and control method are provided for DL transmission and UL transmission between a BS and a UE. In one novel aspect, the repeater establishes a control link with the BS. Then, the repeater configures an amplify and forward link between the BS and the UE by at least one configuration of the control link.

Abstract: A method for expediting Secondary Cell (SCell) activation is proposed. Under the proposed enhanced direct SCell activation procedure, while adding an SCell to be activated state, the network can add transmission configuration indication (TCI) state information for the SCell in a radio resource control (RRC) signaling message, in addition to TCI state information for a list of candidate TCI states. Upon receiving the RRC signaling message, UE adds the SCell accordingly, and then activates the SCell based on the received TCI state information. Because there is no additional time required for receiving and processing the TCI state information via a media access control (MAC) control element (CE), the SCell activation time is reduced.

Abstract: A method for expediting Secondary Cell (SCell) or Primary cell of a secondary cell group (PSCell) addition or activation is proposed. A User Equipment (UE) receives a command that indicates adding or activating an SCell or a PSCell, wherein the command comprises information of a temporary Reference Signal (RS). The UE detects the temporary RS according to the information, and uses the temporary RS to add or activate the SCell or the PSCell.