Embodiments of the present disclosure provide methods and apparatuses for obtaining timing information and performing a time offset adjustment for target wake time (TWT) operations in a wireless network. The apparatuses include a first communication device comprising a transceiver and a processor operably coupled to the transceiver. The transceiver is configured to transmit, during a target wake time (TWT) setup phase, a TWT element including a request for information on a traffic delay of a second communication device and receive the information on the traffic delay. The processor is configured to determine a time offset to adjust a start time of a next TWT interval based on the information on the traffic delay.

According to one embodiment, a failure detection apparatus includes processing circuitry. The processing circuitry acquires a time-series signal generated by a sensor module, generates an analysis result including information concerning saturation of the time-series signal by analyzing the time-series signal, and determine a failure of the sensor module based on the analysis result.

A system and method for processing electronic data messages mitigate the transmission of one or more electronic messages including a sequence of data as a plurality of packets characterized by a sequence therebetween corresponding to the sequence of the data of the electronic message, each packet including data indicative of the sequence of that packet relative to the others of the plurality of packets, to a receiving system, prior to the sender determining that the message(s) is/are desired, alone or in conjunction with subsequently canceling or otherwise invalidating the message(s). The system and method mitigate such behavior by adding a timestamp when the packets are received, detecting if at least one of the received augmented packets of the electronic data message was received by the network interface in an order different from the sequence between the plurality of packets, and taking an action with respect to the electronic data message.

Systems, methods, apparatuses, and computer program products for conditional hybrid automatic repeat request (HARQ) acknowledgement (ACK). For instance, a user equipment (UE) may estimate, during reception of a downlink transmission with x repetitions, an amount of extra energy that may be needed to help ensure successful decoding. The UE may then express this estimate as a quantity of repetitions (y) needed for successful reception, and may inform the radio access network (RAN) of this quantity (e.g., at least one round-trip time (RTT) before the last repetition of the x repetitions is sent). The RAN may handle this message as a conditional positive ACK. The RAN may send the quantity of repetitions y, and may implicitly assume an ACK for that TBS after sending the y repetitions. The RAN may send the next transport blocks (TBS) for that HARQ process after completing transmission of they repetitions.

A method for operating a transmission node performing link adaptation in a mobile communication network may include the steps of: receiving, from a resource allocation node, resource allocation information for a resource for transmission of data; determining link adaptation information and transmitting the determined link adaptation information to a reception node; and on the basis of the determined link adaptation information, transmitting the data to the reception node. Therefore, link adaptation accurately reflecting a radio channel state between a base station and terminals can be performed, thereby enabling efficient use of a radio resource.

A method and system for performing a duty cycle correction and quadrature error correction for a quarter-rate architecture TX/RX communication system, including correcting a duty cycle error between a first clock signal and a second clock signal, and correcting a quadrature error between a third clock signal and a fourth clock signal.

An operation method of a terminal in a communication system may comprise: receiving DCI from a base station; identifying a plurality of start and length indicator values (SLIVs) indicated by a time domain resource assignment field included in the DCI; determining a plurality of PDSCH resources based on the plurality of SLIVs; receiving a plurality of PDSCHs from the base station through the plurality of PDSCH resources; and transmitting, to the base station, a plurality of HARQ-ACKs in response to the plurality of PDSCHs.

A method and an apparatus for transmitting and receiving HARQ response in sidelink communication are provided. The operation method of a first terminal includes receiving DCI for scheduling sidelink transmission from a base station and transmitting first sidelink data to a second terminal based on the DCI. A first SL HARQ response is received for the first sidelink data from the second terminal via a PSFCH. The first SL HARQ response is transmitted to the base station via a PUCCH at a feedback timing indicated by first information included in the DCI.

A communication apparatus transmits a first packet to each of a plurality of other communication apparatuses, and transmits a Multi-User Block Acknowledgement Request (MU-BAR) for causing the other communication apparatus among the plurality of other communication apparatuses, from which an Acknowledgement (ACK) to the first packet is not received at a predetermined timing after the transmission of the first packet, to transmit the ACK.

According to an embodiment of the present disclosure, a method for performing sidelink communication by a first device is provided. The method comprises the steps of: transmitting at least one PSSCH to at least one reception device by using at least one sub channel and at least one slot in a resource pool; and receiving at least one HARQ feedback for the at least one PSSCH through at least one PSFCH resource from among M PSFCH resources in the resource pool, wherein the resource pool comprises K PSSCH-associated slots and L sub channels, which are associated with the PSFCH resources, M is greater than or equal to K*L, and K, L, and M may be positive integers.