Abstract: This document describes methods and devices for a handover of a user equipment from source base station (a Fifth Generation (5G) New Radio (NR) base station) to a target base station (another 5G NR base station or an Evolved Packet Core (EPC) network base station). The source base station, which is in communication with the user equipment, determines to handover the user equipment to the target base station. The source base station, then determines whether to use a delta configuration or a full configuration for handing over the user equipment. For the full configuration, the source base station either excludes the delta configuration from, or indicates use of the full configuration in, handover preparation information. By so doing, the source base station enables handover of the user equipment to the target base station.

Abstract: A base station for configuring bandwidth parts (BWPs) in a certain cell, for access by UEs, configures (1502) an initial BWP within a bandwidth of a cell, configures (1504) a multicast and broadcast services (MBS) BWP within the bandwidth of the cell, wherein the MBS BWP is dedicated to conveying MBS information, and transmits (1506), in the cell, an indication of the initial BWP and the MBS BWP, to provide a UE with access to the initial BWP and the MBS BWP.

Abstract: This document describes methods, devices, systems, and means for the transfer of radio bearer (RB) configurations from a Fifth Generation (5G) New Radio (NR) base station (121) to an Evolved Universal Terrestrial Radio Access (E-UTRA) base station (122). The 5G NR base station (121) configures an RB configuration to configure an RB for communication of Protocol Data Units between the 5G NR base station (121) and a user equipment (111). The 5G NR base station (121) determines to hand over the user equipment (111) to an Evolved Universal Terrestrial Radio Access (E-UTRA) base station and sends a Handover Request message for the user equipment (111) to the E-UTRA base station (122). The 5G NR base station (121) receives a Handover Request Acknowledge message from the E-UTRA base station (122) and transmits a 5G NR Radio Resource Control (RRC) message including an E-UTRA RRC message to the user equipment (111).

Abstract: An enhanced LBT procedure (200) mitigates unnecessary delays in delivering transmissions between User Equipment and base stations over unlicensed spectrum. A UE or base station selects a particular CAPC corresponding to an intended transmission (225) based on an intelligent mapping of different types of transmission payload (e.g., transmission payload other than or in in addition to pre-defined, QoS-related UP message data payload) to different CAPCs. Most (if not all) of the mapped CAPCs corresponding to the different types of transmission payload are of a higher priority than a lowest priority CAPC (212-222), resulting in channel access procedures that are more commensurate with respective transmission payloads.

Abstract: A user equipment (UE) communicates in dual connectivity (DC) with a master node (MN) and a secondary node (SN) (2002). The UE determines that a radio connection with the MN has failed (2004); transmits, the SN, an indication of the failed radio connection, using radio resources of the SN (2006); detects, after the determining and before the radio connection is recovered, an uplink message for transmission to the MN (2008); and transmits, after the radio connection with the MN is recovered, the uplink message to the MN, using radio resources of the MN (2010).

Abstract: To resume a connection with a base station, a user equipment (UE) communicates messages with the base station in accordance with a format that corresponds to a first radio access technology (RAT), using a radio connection over a radio interface that conforms to a second RAT (702). The UE suspends the radio connection (704) and, subsequently to the suspending, transmits to the base station an indication that the radio connection has been resumed, in accordance with the format that corresponds to the first RAT (708).

Abstract: A base station transmits, the a secondary cell (SCell), a control indicator indicating resources for communicating an information unit between the UE and the base station. The base station then communicates the first information unit according to the first control indicator in a primary cell (PCell).

Abstract: This document describes methods and devices for a handover of a user equipment (110) from a Fifth Generation (5G) New Radio (NR) base station (121) to an Evolved Universal Terrestrial Radio Access (E-UTRA) base station (122). The user equipment (110) may determine to release or keep a Packet Data Convergence Protocol (PDCP) entity (312) depending on the whether the E-UTRA base station (122) is connected to an Evolved Packet Core (160) network or a Fifth Generation Core (150) network. The user equipment (110) may determine to release or keep the PDCP entity (312) depending based on a received NR Radio Resource Control (RRC) message or E-UTRA RRC message.

Abstract: A method in a user equipment (UE) for managing configurations received from a radio access network (RAN) with a first network node that supports a first configuration and a second configuration for communicating with the RAN, and a second network node that supports the first configuration but not the second configuration is disclosed. The UE receives (1502A), from the first network node, (i) the first configuration and (ii) the second configuration; determines (1504A) that the UE is to re-establish a radio connection with the RAN, to communicate with the RAN via the second network node; releases (1506A) the second configuration; and communicates (1508A) with the second network node in accordance with the first configuration.

Abstract: To manage a power coordination configuration when performing a dual active protocol stack (DAPS) procedure, a UE receives (702A), from a radio access network (RAN), a power coordination configuration for application by the UE to constrain uplink power when communicating with a source cell and a target cell of the RAN, initiates (704A) the DAPS procedure in accordance with the power coordination configuration, and in response to detecting a trigger condition, releases (706A) the power coordination configuration.

Abstract: A light emit diode (LED) driving circuit, an LED driving method and a display device thereof are provided. The LED driving circuit includes: a first LED driving unit for driving first and second color LEDs of the LED circuit. The first LED driving unit includes: a duty cycle circuit generating an enable signal based on at least two color light duty cycle signals, the at least two color light duty cycle signals controlling an emitting cycle of the LED circuit; a current control circuit, generating at least two color light current adjustment signals based the at least two color light duty cycle signals and at least two color light current level signals; and a constant current circuit, for adjusting current levels of the first and the second color LEDs of the LED circuit based on the enable signal and the at least two color light current adjustment signals.

Abstract: To communicate data in an inactive state associated with a protocol for controlling radio resources, a UE determines, when the UE is in the inactive state, that data is available for transmission to a RAN (1602). The UE applies a security function to the data to generate a secured packet (1604) and transmits the secured packet to the RAN while the UE is in the inactive state (1606). In response to determining that the RAN has not received the secured packet, performing at least one of (i) re-transmitting the secured packet in an uplink message associated with a second random access procedure, or (ii) transmitting, to the RAN, a request to resume or set up a radio connection.

Abstract: Processing hardware in a first network node of a radio access network (RAN) can implement a method for managing measurement gap information. The first network node is a distributed unit (DU) of a distributed base station or a target base station in a handover procedure, and a second network node is a central unit (CU) of the distributed base station or a source base station in the handover procedure. The method includes receiving (1502), at the first network node from the second network node, an information element that specifies a measurement gap capability of the UE in communication with the RAN. The method also includes determining (1504), based on information element, whether to generate a measurement gap configuration for the UE. Further, the method includes providing (1506), to the second network node, an indication of whether the first network node generated the measurement gap configuration for the UE.

Abstract: To manage a preferred configuration indicative of a maximum allocation preferred by the UE for at least one resource, a UE transmits (802A) the preferred configuration to a RAN, transitions (804A) to a state in which a radio connection between the UE and the RAN is suspended, and releases (806A) the preferred configuration, prior to communicating data over the radio connection.

Abstract: This document describes methods and systems for common search space configuration and system information acquisition. As part of the methods and systems, a base station wirelessly communicating with a user equipment that is in an engaged mode determines to configure a common search space through which the user equipment can receive a system information block that is other than a system information block type 1 or a master information block. The base station transmits a first message that includes a set of common search space configuration parameters for the user equipment to receive the other system information block. The base station transmits, in accordance with the set of common search space configuration parameters, a second message that includes the other system information block.

Abstract: A first communication device for transmitting data to a second communication device comprises a storage device for storing instructions and a processing circuit coupled to the storage device. The processing circuit is configured to execute the instructions stored in the storage device. The instructions comprise compressing a first packet to a first compressed packet according to a compressor instance, wherein the first packet is associated to a flow identity (ID); generating a first Protocol Data Unit (PDU) comprising the flow ID and the first compressed packet; associating a first sequence number (SN) to the first PDU; encrypting the first PDU to a first encrypted packet; generating a first Packet Data Convergence Protocol (PDCP) PDU comprising the first SN and the first encrypted packet; and transmitting the first PDCP PDU via a first logical channel (LC) to the second communication device.

Abstract: A radio access network (RAN) for enabling execution of a dual active protocol stack (DAPS) procedure at a UE determines that the UE is to release at least one cell via which the UE communicates with the RAN, prior to executing the DAPS procedure (2402), causes the UE to release the at least one cell (2404), and transmits a command to the UE to execute the DAPS procedure (2406).

Abstract: To manage configuration when a UE operates in multi-radio dual connectivity (MR-DC), the UE receives, by processing hardware and from a radio access network (RAN), conditional configuration information including (i) a conditional configuration related to a base station operating in the RAN, and (ii) a condition to be satisfied before the UE applies the configuration (1102). The UE receives, by the processing hardware and from the RAN, an indication that the UE is to release the MR-DC (1104), and determines, by the processing hardware and prior to the UE transitioning from the MR-DC to a new connectivity mode, whether the UE is to release the conditional configuration (1106).

Abstract: A central unit (CU) of a distributed base station for configuring a dual active protocol stack (DAPS) procedure at a UE communicating with the distributed base station via a source distributed unit (DU) (i) determines (1002) that the UE is to perform the DAPS procedure in order to disconnect from the source DU and connect to a target DU; and (ii) transmits (1008), to the source DU, an indication that the source DU is to continue communicating with the UE during the DAPS procedure.

Abstract: A light source driving method is applied to a light source driving module electrically connected to a light source and a controller. The light source driving module includes a frequency setting module, a driving circuit, and a conversion module. The frequency setting module generates a frequency setting signal according to a switching signal. The driving circuit generates a light source driving signal after receiving the switching signal and a current control signal. The conversion module selectively generates a driving current flowing through the light source in response to the light source driving signal. The driving current increases continuously during a rising duration, and the light source driving signal has a first operating frequency during the rising period. The driving current remains unchanged during a stable duration, and the light source driving signal has a second operating frequency during the stable period.