A time providing method includes: by a computer, upon receiving data from a device, estimating a generation time of the data using a reception time of the data and a first delay time of the device previously estimated; providing information indicating the generation time to the data; and transmitting the data provided with the information indicating the generation time to a destination of the data.

An embodiment of the present disclosure provides a method for a first apparatus to receive control information. The method includes: obtaining a minimum latency between a new radio (NR) module for NR communication of the first apparatus and a long-term evolution (LTE) module for LTE communication of the first apparatus based on the NR module and the LTE module; transmitting information on the minimum latency to an NR base station; and receiving downlink control information (DCI) from the NR base station, wherein the DCI includes a first timing offset determined by the NR base station based on the minimum latency.

There are provided a new and improved wireless communication device, storage medium, and system that can more precisely measure a distance between devices.

A wireless communication device includes: a wireless communication section configured to transmit and receive a signal that conforms to predetermined communication standards; and a processing section configured to execute a correction process of correcting an operation error during an operation, the operation error being caused by a clock shift between the wireless communication device and another wireless communication device, and the operation being based on a time at which the signal has been transmitted and received between the wireless communication device and the another wireless communication device.

Transmitting, by the network device, the configuration information to a user equipment, wherein the configuration information is used to instruct the user equipment to use a measurement set to measure a synchronization signal, wherein the measurement set is used by a user equipment in a connected state to measure a synchronization signal, the measurement set is a first synchronization signal block (SS block) set, and the first SS block set includes a number of SS blocks smaller than a number of SS blocks included in a second SS block set which includes an SS block used by the user equipment in an idle state to measure the synchronization signal; or the measurement set is a signal set, and the signal set includes a part of signals in Y SS blocks, and Y is a positive integer.

A first timing error of a network device is determined based at least in part on a first received network message from a timing synchronization source. At a first instance, it is determined whether the first timing error exceeds a threshold. In response to a determination at the first instance that the first timing error exceeds the threshold, a clock of the network device is corrected based at least in part on the first received network message. A second timing error of the network device is determined based at least in part on a second received network message from the timing synchronization source. At a second instance, it is determined whether the second timing error exceeds the threshold. In response to a determination at the second instance that the second timing error does not exceed the threshold, the clock of the network device is allowed to function without correction.

A vehicular control system includes a first electronic control unit (ECU) and a second ECU disposed at a vehicle. The first and second ECUs are in digital communication with one another via a communication link. The first ECU transmits a first frame to the second ECU, which, responsive to receiving the first frame from the first ECU, transmits a second frame to the first ECU. The first ECU, responsive to receiving the second frame from the second ECU, determines a propagation delay based on an amount of time between when the first ECU transmitted the first frame to the second ECU and when the first ECU received the second frame from the second ECU. The first ECU, responsive to determining the propagation delay, transmits a time synchronization frame to the second ECU that is based at least in part on the determined propagation delay.

A communication method and apparatus are provided. The method includes: receiving a first time difference from a second communication apparatus; determining a round trip time RTT based on the first time difference and a second time difference; and sending a second message to a terminal device, where the second message includes the RTT, an air interface propagation delay, or terminal device side timing information, a value of the air interface propagation delay is equal to half of a value of the RTT, and the terminal device side timing information is determined based on the air interface propagation delay. According to the method and the apparatus in embodiments of this application, high-precision timing between a network device and the terminal device in a CU-DU separation architecture can be implemented.

Systems, apparatuses, and methods for determining locations of wireless nodes in a network architecture are disclosed herein. In one example, a system for localization of nodes in a wireless network architecture, comprises a wireless node having a wireless device with one or more processing units and RF circuitry for transmitting and receiving communications in the wireless network architecture; and a plurality of wireless sensor nodes having a wireless device with a transmitter and a receiver to enable bi-directional communications with the wireless node in the wireless network architecture. One or more processing units of the wireless node are configured to execute instructions to determine ranging data including a set of possible ranges between the wireless node and the plurality of wireless sensor nodes having unknown locations, and to associate a set of relative locations within an environment of the wireless network architecture with the wireless node and the plurality of wireless sensor nodes.

Apparatuses, methods, and systems for dynamically estimating a propagation time between a first node and a second node of a wireless network are disclosed. One method includes receiving, by the second node, from the first node a packet containing a first timestamp representing the transmit time of the packet, receiving, by the second node, from a local time source, a second timestamp corresponding with a time of reception of the first timestamp received from the first node, calculating a time difference between the first timestamp and the second timestamp, storing the time difference between the first timestamp and the second timestamp, calculating a predictive model for predicting the propagation time based the time difference between the first timestamp and the second timestamp, and estimating the propagation time between the first node and the second node at a time by querying the predictive model with the time.

Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment, including in one example: receiving a relay characteristic report, wherein the relay characteristic report indicates an intrinsic channel delay of a relay device; determining a channel delay spread of the channel; and transmitting an indication to affect relay device operation based at least in part on the channel delay spread and the intrinsic channel delay of the relay device.