Lenovo (Beijing) Ltd.

Embodiments of the present application are related to a method and apparatus for determining timing advance value. According an embodiment of the present application, an exemplary method includes: receiving association information between timing advance (TA) value for uplink transmission and downlink reference signal (RS), wherein each TA value is associated with an index of at least one corresponding downlink RS; determining a downlink RS index for associating with a TA value for uplink transmission; and determining the TA value for uplink transmission based on the association information. Accordingly, embodiments of the present application can indicate and determine TA value with reduced signaling overhead.

Embodiments of the present application relate to a method and apparatus for sidelink DRX alignment. An exemplary method includes: obtaining configuration information indicating at least one DRX configuration for a data, wherein the at least one DRX configuration is associated with a first resource pool; and transmitting or receiving the data based on the at least one DRX configuration indicated by the configuration information. Embodiments of the present application can minimize the power consumption of the UEs as well as ensuring the data transmission among the UEs.

Embodiments of the present disclosure relate to methods and apparatuses for access control of a small size and infrequent data transmission. According to an embodiment of the present disclosure, a method includes: receiving access control configuration information; and performing an access control of a user equipment (UE) based on the access control configuration information, wherein the UE is configured with a pre-configured uplink (UL) resource, and the UE supports a small size and infrequent data transmission in radio resource control (RRC) inactive state or RRC idle state.

Methods and apparatuses for determining HARQ process number are disclosed. A method comprises receiving a control signal; and receiving a downlink data or transmitting an uplink data based on the control signal, the downlink data or the uplink data is associated with a HARQ process number.

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.

Methods and apparatuses for monitoring NPDCCH in NBIoT are disclosed. A method comprises receiving a first control signal scheduling a data transmission; and monitoring a second control signal from a start time slot to an end time slot, wherein the start time slot is a gap period behind the last time slot for receiving the first control signal, and the end time slot is a time period ahead of the first time slot for the data transmission.

Embodiments of the present application relate to a method and an apparatus for Conditional handover (CHO) and fast MCG link recovery. According to an embodiment of the present application, a method can include: receiving fast master cell group (MCG) link recovery configuration information; receiving CHO configuration information indicating a set of CHO configurations and a set of execution conditions for a set of cells, each cell is associated with a CHO configuration and an execution condition; and evaluating the set of execution conditions based on the CHO configuration information. Embodiments of the present application can define the CE behavior when both the MCG link recovery procedure and the CHO procedure are configured for the UE.

Embodiments of the present application relate to a method and an apparatus for a master cell group, e.g., a dual active protocol stack (DAPS) handover procedure and a radio link failure (RLF) report mechanism associated with a source link during the DAPS handover procedure under a 3rd Generation Partnership Project (3GPP) 5G New Radio (NR) system or the like. According to an embodiment of the present application, a method can include: receiving configuration information including a timer associated with fast MCG link recovery; receiving a radio resource control (RRC) reconfiguration message including DAPS configuration information; in response to a RLF of a source link for a MCG, initiating a MCG failure information procedure based on the condition that the timer for handover is running or not. In addition, a RLF-report may be reported to a target cell after a UE successfully accesses to the target cell.

The present application relate to methods and apparatuses for a secondary cell group (SCG) deactivation mechanism and a SCG activation mechanism in a multi-radio dual connectivity (MR-DC) scenario under a 3rd Generation Partnership Project (3GPP) 5G New Radio (NR) system or the like. According to an embodiment of the present application, a method can include: in response to detecting user data volume decrease or user data inactivity at a SCG, deciding to deactivate the SCG; and in response to deciding to deactivate the SCG, performing a SCG deactivation procedure.

Embodiments of the present application relate to a method and an apparatus for resource selection on NR sidelink. According to an embodiment of the present application, a method can include: receiving resource selection controlling information; and determining one or more candidate resources in a resource selection window of a resource pool for a physical sidelink control channel (PSCCH) transmission and/or a physical sidelink shared channel (PSSCH) transmission based on the resource selection controlling information. Embodiments of the present application can save power for VRUs as well as decrease resource collision between the traffics affected by the resource selection controlling information.