805 results about "Discontinuous reception" patented technology

Provided are a method and apparatus for performing cell DTX and / or cell DRX in a wireless communication system. The method may include receiving cell discontinuous transmission (DTX) and cell discontinuous reception (DRX) configuration information, receiving an activation operation of cell DTX and / or cell DRX based on the cell DTX and cell DRX configuration information, and monitoring a physical downlink control channel (PDCCH) after performing the activation operation of the cell DTX and / or the cell DRX, in which the monitoring of the PDCCH is performed based on active time of the cell DTX.

A user equipment (UE) may comprise: receiving a UE-specific discontinuous reception (DRX) configuration and a cell-specific DRX configuration; performing first predetermined operations during a first active time according to the cell-specific DRX configuration; and performing second predetermined operations during a time other than the first active time according to the cell-specific DRX configuration.

A method for managing measurement gaps. A base station transmits, to a user equipment (UE), a configuration for enabling transmission and reception during measurement gaps (MGs) of the UE. The base station transmits a dynamic configuration in a Downlink Control Information (DCI) format for skipping measurements by the UE during a measurement gap. The dynamic configuration includes at least one of a one-bit indication for indicating whether to skip a measurement gap, a priority level assigned to the MGs, a priority level assigned to configured grants (CGs), a priority level for a discontinuous reception (DRX) configuration, or a skip type indicator. The one-bit indication corresponds to the measurement gap occurring after a predetermined time offset from reception of the DCI format.

A method can include receiving, by a wireless device, radio resource control (RRC) messages that include parameters of a multicast and broadcast service (MBS). The parameters can include a discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round trip time (RTT) timer; a DRX retransmission timer; and a feedback indicator indicating whether HARQ feedback is enabled. The method can also include receiving a group common downlink control information (DCI) scheduling a transport block (TB) of the MBS. The method can further include, in response to the feedback indicator indicating that HARQ feedback is enabled: transmitting a HARQ feedback with a negative value based on the TB being unsuccessfully decoded; and starting the DRX HARQ RTT timer after transmitting the HARQ feedback. The method can additionally include starting the DRX retransmission timer based on an expiry of the DRX HARQ RTT timer.

Described herein are systems, methods and instrumentalities associated with power saving in a wireless communication system. A wireless transmit / receive unit (WTRU) in the system may receive configuration information regarding a discontinuous reception (DRX) mode and a low-power wake-up signal (WUS). The WTRU may enter the DRX mode and monitor for the low-power WUS. The WTRU may determine whether to wake up during an on duration of the DRX mode based on whether the low-power WUS is received or based on information included in the low-power WUS.

A method by which a terminal receives a signal in a wireless communication system, according to an embodiment, comprises: receiving a discontinuous reception (DRX) configuration and a semi-persistent scheduling (SPS) configuration; and receiving an SPS physical downlink shared channel (PDSCH) that is based on the SPS configuration, wherein the SPS PDSCH may include eXtended reality (XR) traffic, and the SPS configuration may switch to an inactive pending state in a DRX off-duration of each DRX cycle that is based on the DRX configuration.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitting (Tx) user equipment (UE) may perform, to a receiving (Rx) UE, a first sidelink transmission in an on duration of a sidelink discontinuous reception (DRX) cycle associated with a sidelink DRX configuration. The Tx may activate a sidelink DRX timer based at least in part on the sidelink DRX configuration, wherein the sidelink DRX configuration is associated with a destination identifier (ID) and one or more source IDs are associated with the destination ID, and wherein the sidelink DRX timer is operated per a pair of source ID and destination ID. Numerous other aspects are described.

A terminal device that communicates with a base station device includes: a receiver configured to receive, from the base station device, first information, second information, and third information, the first information being information regarding a first active period related to discontinuous reception by the terminal device in a connected mode, the second information being information regarding a second active period indicating a period in which transmission and reception are enabled in units of cell, the third information being information regarding extension of the first active period; and processor circuitry.

A method performed by a user equipment (UE) in a wireless communication system is provided. The method comprises: receiving, from a base station, higher layer signaling comprising a power saving offset (PS-offset) indicating a first start time when the UE starts, prior to a second start time of a drx-onDuration timer, monitoring physical downlink channel (PDCCH) for downlink control information (DCI) notifying power saving information outside a discontinuous reception (DRX) active time and parameters indicating a search space; identifying at least one PDCCH monitoring occasion for the DCI based on the PS-offset and the parameters indicating the search space; and monitoring the DCI on the at least one PDCCH monitoring occasion.

The invention discloses a Doppler frequency offset estimation method and electronic equipment, and relates to the technical field of communication, and the method comprises the step that the electronic equipment communicates with a low-orbit satellite in a discontinuous reception (DRX) mode. Wherein in a discontinuous reception (DRX) mode, the electronic equipment enters a wake-up period when the wake-up moment arrives, the electronic equipment communicates with a low-orbit satellite in the wake-up period, the electronic equipment enters a sleep period when the sleep moment arrives, and the electronic equipment stops communicating with the low-orbit satellite in the sleep period. When the wake-up moment arrives, the electronic device obtains at least one historical Doppler frequency offset value; and the electronic equipment determines a Doppler frequency offset value corresponding to the wake-up moment based on the historical Doppler frequency offset value. In the scheme, the Doppler frequency offset value at the wake-up moment is estimated through the historical Doppler frequency offset value, and the electronic equipment can calculate the Doppler frequency offset value at the current wake-up moment, so that frequency offset compensation can be carried out in time at the current wake-up moment, and the performance of frequency offset compensation is optimized.

During a first portion (20A) of an active time (20) of discontinuous reception (DRX) operation, a wireless device (14) monitors a control channel (18) using a first control channel monitoring configuration (22-1). During the active time (20), though, the wireless device (14) switches from the first control channel monitoring configuration (22-1) to a second control channel monitoring configuration (22-N). This switching may be triggered by occurrence of an event. During a second portion (2 OB) of the active time (20) occurring subsequent to the first portion (20A) and after this switching, then, the wireless device (14) monitors the control channel (18) using the second control channel monitoring configuration (22-N). The first portion (20A) of the active time (20) and the second portion (2 OB) of the active time (20) may be included in the same DRX cycle.

A wireless communication method and related devices are provided. The method, performed by a user equipment (UE), including being configured with one or more Discontinuous Reception (DRX) configurations, each DRX configuration comprising one or more drx-on durations matching one or more services. With this method, jitters of (XR) packets can be covered by drx-on durations, facilitating XR traffic service.

Wireless communication devices, systems, and methods related to adjusting aspects of a connected discontinuous reception (CDRX) operation and / or a semi-persistent scheduling (SPS) operation for extended reality (XR) communications are provided. For example, a method of wireless communication performed by a user equipment can include receiving an adjustment indication indicating at least one of a starting time or a length of a connected discontinuous reception (CDRX) on-duration; transmitting an acknowledgment (ACK) associated with the adjustment indication; and monitoring, based on the at least one of the starting time or the length of the CDRX on-duration, for a communication.

Apparatuses, systems, and methods for supporting multiple discontinuous reception configurations in a carrier aggregation scenario in a wireless communication system. An indication that a wireless device supports multiple discontinuous reception configurations for carrier aggregation operation may be provided by the wireless device to a cellular base station. Configuration information for carrier aggregation operation may be received by the wireless device from the cellular base station. The configuration information may include separate discontinuous reception configurations for each of multiple cell groups.

the first information indicates a cell DTX state of a serving cell of the terminal device, and the C-DRX-related timer is configured to determine whether the terminal device enters a C-DRX active period (S901); and when the first information indicates that the DTX state of the serving cell is an inactive period state, performing a first operation, where the first operation indicates the terminal device to enter a C-DRX sleep period or is used to change the running state of the C-DRX-related timer (S902). The cell DTX state is taken into consideration for whether the terminal device enters the C-DRX sleep period, thereby avoiding an invalid monitoring of a PDCCH performed by the terminal device when the cell DTX state is the inactive period state.

Systems and methods for nested discontinuous reception (DRX) cycles in a wireless communication system are provided. A UE may be a low power device such as an energy harvesting UE. Based on an energy harvesting capability of the UE, the UE may communicate information to a network unit. Based on the information from the UE, the network unit may configure the UE for nested DRX cycles. The nested DRX configuration may include outer DRX cycle timing parameters, and inner DRX cycle timing parameters, such that when the outer DRX cycle is in the “on” duration, the inner DRX cycle alternates between “on” and “off” durations according to the inner DRX cycle timing.

A wireless device receives one or more configuration parameters indicating one or more radio network temporary identifiers (RNTIs) to monitor, via downlink control channels, during an active time of DRX operation. The wireless device selects, for transmission of a message-A of a random access procedure, one or more resources, where the message-A comprises a preamble and a payload and the payload comprises a C-RNTI. The wireless device starts a response window based on transmitting the preamble via at least one resource of the one or more resources. Based on dropping transmission of the payload and during the response window, the wireless device monitors the downlink control channels for a first RNTI, where the first RNTI is associated with a response to the preamble and determined based on the at least one resource, and does not monitor the downlink control channels for the one or more RNTIs.

The present application relates to supporting extended discontinuous reception (eDRX) by a reduced capability user equipment (RedCap UE). A user equipment (UE) indicates to a network that the UE is operating as a RedCap UE and requests an eDRX configuration. In response, the network selects one or more values for the eDRX and sends such value(s) to the UE.

This disclosure provides details of a configuration signaling and associated behaviors for sidelink (SL) discontinuous reception (DRX) for unicast, connection-specific DRX. According to one embodiment, a first user equipment (L E) configures link-specific discontinuous reception (DRX) by processing a common DRX configuration that is preconfigured, received through a Uu interface, or received in a SIB; and signaling over a PCS interface with a second UE, a link-specific configuration for a link-specific DRX cycle, the Link-specific configuration including a link-specific on-duration parameter.

Wireless communications may use one or more devices for transmission and / or reception that may lead to potentially harmful exposure. One or more safety measures may be used for wireless communication devices, such as maximum power exposure (MPE) reporting and / or related operations. An MPE report may be sent based on MPE detection and one or more messages, such as for cell activation, bandwidth part (BWP) or other wireless resource activation and / or switching, and / or a discontinuous reception (DRX) or other state transition.

Systems, methods, apparatuses, and computer program products for discontinuation rest for predictable traffic. One method may include receiving, by a user equipment, a discontinuous rest configuration, and starting, by the user equipment, a discontinuous rest timer indicated by the discontinuous rest configuration upon an end of an active time and if a number of packets transmitted and a number of packets received before the expiration of the active time is smaller than a corresponding threshold indicated in the discontinuous rest configuration. The discontinuous rest timer is associated with a discontinuous reception group.

Proposed is a method for a first device to perform wireless communication according to an embodiment. The method may comprise the steps of: acquiring an SL DRX configuration including information related to a sidelink discontinuous reception (SL DRX) cycle and information related to an active time; transmitting first sidelink control information (SCI) to a second device through a first physical sidelink control channel (PSCCH), wherein the first sidelink control information (SCI) is for scheduling a first physical sidelink control channel (PSSCH); transmitting second SCI and a first medium access control (MAC) protocol data unit (PDU) to the second device through the first PSSCH; determining a first physical sidelink feedback channel (PSFCH) resource in the first PSFCH slot on the basis of an index of a slot related to the first PSSCH and an index of a subchannel; and receiving a first hybrid automatic repeat request (HARQ) feedback for the first MAC PDU, the first HARQ feedback being received from the second device on the basis of the first PSFCH resource. For example, the first PSFCH slot may be included in an inactive time at the time of transmission of the first MAC PDU. For example, the first PSFCH slot may be included in an active time at the time of reception of the first HARQ feedback.

Provided are a wireless communication method and a communication device. An example wireless communication method includes: determining, by a first communication device, second information based on first information; or determining, by a first communication device, the first information based on the second information; wherein the first information is related to at least one of a time window for sending a first signal or a time window for measuring the first signal, the second information is related to at least one of a discontinuous reception (DRX) parameter or a paging parameter of a terminal device, and the first signal is configured for positioning of the terminal device.

Embodiments of the present application are related to methods and apparatuses for positioning for a user equipment (UE) configured with discontinuous reception (DRX). An embodiment of the present application provides a UE including: a processor: and a transceiver coupled to the processor and configured to: receive a DRX configuration; and receive a positioning configuration. wherein the DRX configuration is aligned with the positioning configuration.

Some aspects of this disclosure relate to apparatuses and methods for implementing mechanisms for configuring Connected Mode Discontinuous Reception (CDRX) and resource allocation. For example. a user equipment (UE) includes a transceiver configured to enable wireless communication with a base station and a processor. The processor is configured to receive, using the transceiver and from the base station, a message indicating whether a downlink (DL) voice packet is to be transmitted to the UE. The processor is further configured to determine whether the UE is transmitting an uplink (UL) voice packet. In response to the message indicating that no DL voice packet is to be sent to the UE and a determination that no UL voice packet is to be transmitted to the base station. the processor is configured to refrain from starting a discontinuous reception (DRX) timer and to transition the UE to a sleep mode.

This application provides a paging method and an apparatus. The paging method includes: A terminal device receives extended discontinuous reception (eDRX) configuration information of a first type and eDRX configuration information of a second type, where the eDRX configuration information of the first type includes a first eDRX cycle, the eDRX configuration information of the second type includes a second eDRX cycle, the first eDRX cycle is greater than a first cycle threshold, and the second eDRX cycle is less than or equal to the first cycle threshold; and the terminal device determines, based on a category of an access network device of a cell in which the terminal device is located, to monitor a paging message by using the eDRX configuration information of the first type or monitor a paging message by using the eDRX configuration information of the second type.

Apparatuses, methods, and systems are disclosed for sidelink discontinuous reception configuration. One method includes initiating, by a first user equipment, a sidelink unicast establishment procedure with a second user equipment. The method includes performing sidelink communication using a predetermined sidelink discontinuous reception configuration during the sidelink unicast establishment procedure. The method includes, in response to receiving a direct communication accept message, performing sidelink communication based on a set of sidelink discontinuous reception configurations.

This application pertains to the field of communication technologies, and discloses a hybrid automatic repeat request HARQ feedback method and apparatus, and a terminal. The HARQ feedback method in embodiments of this application includes: determining, by a terminal based on first information, a HARQ feedback codebook to be sent based on a target physical uplink control channel PUCCH occasion, where the first information includes an inactive period of discontinuous transmission DTX in a target cell or discontinuous reception DRX in a target cell, and the target cell includes a serving cell of the terminal.

A communication method includes a terminal that receives first configuration information from a network device, where the first configuration information may include discontinuous reception (DRX) configuration information of a first cell, and the DRX configuration information of the first cell indicates DRX non-active time of the first cell. If the terminal is within the DRX non-active time of the first cell when needing to send first information, the terminal may not be constrained by DRX of the first cell, and the terminal may send, in the first cell, the first information within the DRX non-active time of the first cell, where the first information includes hybrid automatic repeat request-acknowledgment (HARQ-ACK) information and / or a scheduling request (SR).

Systems, methods, and apparatuses for multiple main radio receiver (MR) ramp-up times for low power wake-up signal (LP-WUS) monitoring by a wireless transmit / receive unit (WTRU) are provided. The WTRU determines and / or the WTRU receives configuration information indicative of a plurality of MR ramp-up times. The plurality of MR ramp-up times are based on a continuous time duration for which the WTRU monitors for the LP-WUS. The WTRU determines one or more physical downlink control channel (PDCCH) monitoring resources as a function of one or more MR ramp-up times of the plurality of MR ramp-up times. The WTRU determines whether to monitor the PDCCH outside a discontinuous reception (DRX) on duration timer and / or during the DRX on duration timer based on one or more conditions. The plurality of MR ramp-up times reduce latency caused by MR sleep states, increase efficiency of scheduling data transmission and / or reception, and reduce WTRU power consumption.