Sharp Kabushiki Kaisha Corporation

Fg Innovation Company Limited

Chongming Zhang

Renmao Liu

Shohei Yamada

Ningjuan Chang

Chao Luo

Fangying Xiao

Fancying Xiao

Hidekazu Tsuboi

Provided in the present invention are a method performed by user equipment, and user equipment. A method performed by user equipment, in which user equipment (UE) configured with dual connectivity or multi-connectivity performs configuration management on a secondary cell group (SCG) in a deactivated state during communication with a master cell group (MCG) and the SCG, includes the following steps: receiving, by the UE, an RRC connection reconfiguration message transmitted by a base station to the UE, the RRC connection reconfiguration message including a dedicated cell configuration for an SCG and a synchronization indication, wherein the SCG corresponding to the dedicated cell configuration is a target SCG, a primary serving cell (PSCell) thereof is a target PSCell, and an SCG/PSCell serving the UE before the reconfiguration message is received is a source SCG/source PSCell; and performing, by the UE, different PSCell change operations according to different states of the target SCG or the target PSCell.

User equipment, base station, and method for random access procedure on a primary serving cell based on a secondary cell group state

Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment is a method in which UE, after receiving a command for activating an SCell, triggers a PHR, the method including the following steps: receiving, by UE, an activation command for activating an SCell; when the UE receives the activation command, determining, by the UE, the state of the SCell; and when the UE determines that the SCell is in an activated state before the activation command is received, determining, by the UE, the type of an active BWP of the SCell; and when the UE determines that the type of the active BWP is a non-dormant BWP, triggering, by the UE, a PHR.

Method performed by user equipment, and user equipment

Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment (UE) includes: when a periodically started timer T-active is running, the UE monitoring a physical sidelink control channel (PSCCH) and receiving sidelink control information (SCI); if the received SCI information indicates that HARQ feedback is to be performed, starting a timer T1-retx; if the received SCI information indicates that HARQ feedback is not to be performed, starting a timer T2-retx; and when the timer T1-retx and the timer T2-retx are running, the UE monitoring the PSCCH.

Provided in the present invention are a method performed by user equipment, and user equipment. The method performed by user equipment is a method for deactivating an SCG in a process in which UE configured with dual connectivity or multi-connectivity communicates with an MCG and the SCG. The MCG is a serving cell group controlled by an MN, and the SCG is a serving cell group controlled by an SN. The method includes the following steps: receiving, by the UE, an SCG deactivation command, and when the UE receives the SCG deactivation command, performing at least one of the following operations: suspending/pausing transmission of an SRB and a DRB on the SCG; stopping a timer T, wherein Tis started when the UE consecutively receives N out-of-sync indications on a PSCell of the SCG; stopping a timer T, wherein Tis configured with a timer measurement ID, and is started when a measurement report thereof is triggered; suspending/pausing a measurement configuration associated with the SCG; releasing the measurement configuration associated with the SCG; deactivating an SCell of the SCG; deactivating the PSCell of the SCG; and starting an SCG deactivation timer.

Provided in the present invention is a method performed by user equipment, and user equipment. The method performed by user equipment is a method, performed by user equipment, for determining address information to which a CSI report belongs or corresponds. The method includes the following steps: carrying, by user equipment, a CSI request trigger in SCI, and scheduling transmission of a PSSCH carrying a TB in the SCI, wherein the TB includes an MAC PDU, and an MAC subheader of the MAC PDU includes address information; receiving, by another user equipment, the SCI, receiving the transmission of the PSSCH according to the information in the SCI, and decoding the TB; and generating, by another user equipment, a CSI report, wherein address information of the CSI report is determined by the address information of the CSI request trigger corresponding to the CSI report.

Provided in the present invention are a method performed by user equipment, and user equipment. A method performed by user equipment is a method of an RRC connection re-establishment procedure performed by user equipment (UE), and includes the following steps: triggering or initiating, by the UE, an RRC connection re-establishment procedure; during initiation of the RRC connection re-establishment procedure, starting, by the UE, a timer T, and performing cell selection or relay selection; and in the case that the UE has selected a suitable cell or the UE has selected a suitable relay, stopping, by the UE, T, wherein the suitable cell is a cell of which a measured value or a level value meets a cell selection rule, and the suitable relay is a relay of which a measured value or a level value meets a relay selection rule.

A method performed by a user equipment (UE) is provided. The method detects a failure in a master cell group (MCG) transmission. The method, after determining that the UE is configured with a resume timer, transmits a message to a base station (BS). The message includes information related to the failure. The method also starts the resume timer upon sending the message to the BS, and triggers a radio resource control (RRC) connection re-establishment procedure when the resume timer expires.

Control method of user equipment and user equipment

The present application provides a method executed by a user equipment, comprising: receiving a first system information (SI) message, wherein the first system information (SI) message comprises type information related to a system information block (SIB) and scheduling information of a second system information (SI) message to which the type of the SIB belongs, and the scheduling information comprises a time when the second SI message appears and indication information indicating whether the second SI message is broadcast; and if the indication information indicates that the second SI message is not broadcast, sending an SI request message, and receiving a needed system information block (SIB) according to the scheduling information in the received first SI message. The present application further provides a corresponding user equipment and base station. By means of the present invention, unnecessary overheads are avoided and system resources are saved while meeting the demand of a UE acquiring information.

Method for sending and receiving system message, base station, and user equipment

The invention provides a method performed by user equipment and user equipment. The user equipment is configured in a discontinuous reception (DRX) mode. The method performed by user equipment comprising: initiating a random access (RA) procedure if a value of a beam failure instance (BFI) counter is greater than or equal to a threshold, the threshold being configured by an information element (IE) beamFailureInstanceMaxCount; transmitting a RA preamble; starting a RA response window, the RA response window being configured in an IE BeamFailureRecoveryConfig; and monitoring a PDCCH on a search space indicated by an IE RecoverySearchSpaceId while the RA response window is running. The user equipment can reliably complete a procedure to recover from beam failure even if the user equipment is configured in a DRX mode, thereby improving the overall reliability and communication efficiency of a communication system related to the user equipment.

Method and apparatus of beam failure recovery executed by user equipment

The present disclosure provides a control method for a user equipment, a control method for a base station, and a user equipment. The control method for a user equipment comprises receiving scheduling request configuration information related to a sidelink; and performing a scheduling related to the sidelink based on the received scheduling request configuration information, wherein the scheduling request configuration information is received from at least a network side or a base station side and comprises a scheduling request configuration identity (ID) or specific scheduling request configuration.

Control method for user equipment, control method for base station, and user equipment

Provided in the present invention are a method performed by user equipment, and user equipment, which can reliably perform processing related to a beam failure recovery request/beam failure report (BFR) and/or scheduling request (SR). The method comprises: detecting a measurement result of a measurement reference signal corresponding to a serving cell; if the measurement result indicates that a beam failure has occurred, utilizing a counter to count the number of beam failures; and when the count value of the counter is above a given threshold, performing processing related to a beam failure recovery request/beam failure report (BFR) and/or scheduling request (SR).

The present invention provides a random access method and user equipment. The random access method includes: user equipment (UE) transmitting a message A to a base station, wherein the message A includes a preamble and a payload of the message A; the user equipment (UE) receiving a message B transmitted by the base station and serving as a response message to the message A; determining whether the message B includes a contention resolution ID of the UE; and upon determining that the message B includes the contention resolution ID of the UE, generating a media access control layer control information (MAC CE), or a media access control layer protocol data unit (MAC PDU), or hybrid automatic repeat request acknowledgement (HARQ-ACK) information to indicate acknowledgement information related to the message B.

Random access method and user equipment

The present invention provides a method performed by user equipment and user equipment. The method comprises: receiving control information from a base station, the control information comprising a resource configuration related to a transmission on a Physical Sidelink Shared Channel (PSSCH); transmitting data to other UE through the PSSCH according to the control information; and transmitting to the base station first feedback information related to the transmission on the PSSCH and/or second feedback information related to a transmission on a Physical Downlink Shared Channel (PDSCH) between the base station and the UE. In this way, reliable data transmission can be achieved, thereby improving the reliability and stability of an entire communication system.

User equipment and method for transmitting HARQ feedback to another user equipment

Provided in the present invention are a control method for user equipment, and user equipment. The control method for user equipment (UE) comprises: receiving, by the UE, a channel state information (CSI) request transmitted by other UE; generating, by the UE, on the basis of the CSI request, a CSI report transmitted through a PSSCH, and sidelink control information (SCI) for scheduling and indicating the transmission of the PSSCH; and setting, on the basis of whether the PSSCH carries a MAC protocol data unit (MAC PDU), a quality of service (QoS) parameter related to the QoS of the PSSCH transmission included in the SCI.

Control method for user equipment, and user equipment

Provided are a method for radio link failure recovery and user equipment. The method for radio link failure recovery includes: determining whether a radio link failure (RLF) occurs on a radio link of user equipment (UE); when the RLF occurs on the UE, if the UE is configured with a conditional handover, then executing a cell selection procedure; and performing a radio link failure recovery operation according to a cell selection result of the cell selection procedure.

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Shanghai, China

Chongming Zhang