270 results about "Device to device" patented technology

An intelligent traffic management device for optimizing traffic flow at one or more intersections using reinforcement learning, comprising: a central control unit housed in a weatherproof enclosure and mounted on a structural support near an intersection; a sensor interface operatively connected to a variety of multimodal sensors, including at least radar-based vehicle detectors, inductive loop sensors embedded in the road surface, infrared pedestrian detection detectors, and high-resolution optical imaging modules; a powerful embedded computing unit consisting of a multi-core processor and a GPU configured for on-device inference; a reinforcement learning engine embedded in the computing unit, comprising a deep reinforcement learning model trained to map environmental states defined by traffic-related sensor inputs to optimized action policies for traffic light control; a signal actuation module electrically connected to traffic signal controllers, with action policies outputting signal phase durations and transitions in real time; a communications module supporting wireless connectivity and configured for device-to-device communication and cloud synchronization; a policy synchronization module configured to perform federated learning-based updates of model parameters by exchanging gradient weights or distilled traffic state vectors with neighboring intelligent traffic management devices deployed in a traffic network; where the reinforcement learning engine continuously observes traffic state vectors consisting of vehicle counts, average speeds, queue lengths, and pedestrian activity, and dynamically updates the policy to maximize cumulative traffic throughput and minimize average delay.

Disclosed are methods for allocating spectrum by a Mobile Satellite Service (MSS) satellite to a User Equipment (UE). The method includes monitoring, by the MSS satellite, radio spectrum in a coverage area of the MSS satellite, determining a spectrum usage map of the radio spectrum in the coverage area, where the spectrum usage map comprises frequency bands comprising licensed frequency bands and unlicensed frequency bands, and transmitting the spectrum usage map for use by the UE. Related wireless electronic devices are also discussed.

The present application relates to devices and components including apparatus, systems, and methods to configure and use reference signals for positioning in device-to-device communications (e.g., sidelink communications between two UEs). Configuration information can be generated for a device and can indicate sidelink resources in a resource pool configured to be used for a reference signal for positioning. In the time domain, the configuration can be at a slot level or a symbol level. The configured sidelink resources can be indexed in the time domain and the frequency domain. Control information can be transmitted to indicate a next transmission of a reference signal for positioning. This control information can implicitly or explicitly indicate a configured sidelink resource to be used in the next transmission.

A terminal includes a reception unit configured to receive a signal related to positioning in device-to-device direct communication from another terminal; a transmitter configured to transmit a signal based on the signal related to positioning in the device-to-device direct communication to the other terminal; and a control unit configured to perform control to transmit the signal based on the signal related to positioning in the device-to-device direct communication to the other terminal by a certain time point.

The present invention discloses a device-to-device covert communication system assisted by a drone and an intelligent reflecting surface, establishes a drone and intelligent reflecting surface UIRS joint-assisted D2D covert communication model, including communication links between various entities, calculates the average minimum error detection probability and the maximum communication rate; the sender sends a covert signal to the UIRS, and the UIRS forwards it to the receiver. Among them, the UIRS changes the angles of the corresponding incident covert signal and the reflected covert signal through its constituent elements; the spectrum-sharing cellular user sends a cellular signal to the base station, and at the same time the base station sends an interference signal, introducing an uncertainty factor at the receiver of the eavesdropper Willie to achieve the covertness of the UIRS joint-assisted D2D communication link; the eavesdropper Willie monitors whether the UIRS joint-assisted D2D communication link transmits a covert signal; the covertness is measured by the average minimum error detection probability; under the multiple constraints of satisfying the average minimum error detection probability, the cellular communication link outage probability, the transmission power, and the transmission power of the interference signal, etc., the maximum communication rate of the UIRS joint-assisted D2D communication link is obtained, and the communication rate of the system is effectively improved under the joint assistance of the drone and the intelligent reflecting surface UIRS.

A wireless communication network is described, which includes one or more relay devices and one or more user devices, UEs. A relay devices provides a first bidirectional link having first relay resources, and a second bidirectional link having second relay resources, the first and second bidirectional links using a first interface for a communication with a radio access network, RAN, of the wireless communication network, e.g., the Uu interface. A UE is to perform a direct communication with a network entity of the wireless communication network via the relay device on one or more the first relay resources or on one more of the first and second relay resources using a second interface for a device-to-device, D2D, or sidelink, SL, communication in the wireless communication network, e.g., the PC5 interface.

Methods, systems, and devices for wireless communication are described. A communication device supports sidelink communication, including device-to-device (D2D) communication and vehicle-based communication. The communication device receives a discontinuous transmission (DTX) configuration for a sidelink connection between the communication device and another device from the other device. Based on the received DTX configuration, the communication device determines a discontinuous reception (DRX) configuration and transmits the determined DRX configuration to the other device. The devices experience power savings and other results based on the DTX configuration or the DRX configuration.

Discontinuous transmission and discontinuous reception configurations for sidelink communications are disclosed. Methods, systems, and devices for wireless communication are described. A communication device supports sidelink communications, including device-to-device (D2D) communications and vehicle-based communications. The communication device receives, from another device, a discontinuous transmission (DTX) configuration for a sidelink connection between the communication device and the other device. Based on the received DTX configuration, the communication device determines a discontinuous reception (DRX) configuration and transmits the determined DRX configuration to the other device. These devices experience power savings and other results according to a DTX configuration or a DRX configuration.

A method for setting up a multiple radio access technology (multi-RAT) device-to-device (D2D) communication is disclosed. An application function (AF) in a wireless transmit / receive unit (WTRU) may identify a group of multiple radio access technology (multi-RAT) capable WTRUs to a policy control function (PCF), wherein one or more multi-RAT capable WTRUs of the group of multi-RAT capable WTRUs register as having enhanced device-to-device (ED2D) functionality. The AF may select a multi-RAT capable WTRU from the group of multi-RAT capable WTRUs having ED2D functionality, as a relay for extended D2D operation. The device with ED2D function will act as Relay for ED2D (RED2D). The PCF may then reconfigure the RED2D with group related information. The RED2D may then configure D2D communication among the group of multi-RAT capable WTRUs.

The present disclosure relates to systems, apparatuses, methods, and non-transitory computer-readable media for determining, by a first wireless communication device, configuration for a SL positioning-related transmission and communicating, by the first wireless communication device with a second wireless communication device, the SL positioning-related transmission, wherein the SL positioning-related transmission includes at least one of a Sidelink Positioning Reference Signal (SL-PRS), a Physical Shared Control Channel (PSCCH) corresponding to the SL PRS, or a Demodulation Reference Signal (DMRS).

A method and apparatus are described for supporting a two-stage device-to-device (D2D) discovery using a D2D interworking function (IWF). A D2D IWF component may be configured to perform mapping between an application running on an application server and a third generation partnership project (3GPP) network, and provide a set of application programming interfaces (APIs) to allow discovery to be provided as a service to D2D applications. An application identifier may be mapped to a 3GPP identifier. Further, a method and apparatus are described for performing client-server discovery. A first wireless transmit / receive unit (WTRU) may be configured for a listen-only operation, and a second WTRU may be configured to transmit beacons. The first and second WTRUs may perform a radio access network (RAN) discovery procedure at an access stratum (AS) layer. A method and apparatus for performing charging for D2D service using a D2D IWF are also described.

The present invention relates to methods and apparatus for achieving frequency, phase and time of day synchronization in wireless systems. An exemplary method of operating a first wireless base station in a first network in accordance with an embodiment of the present invention comprises the steps of: (i) receiving, at the first wireless base station, a first message; (ii) in response to receiving the first message entering, by the first wireless base station, into a first mode of operation; and (iii) while operating in the first mode of operation, obtaining, by the first wireless base station, synchronization information from a first user equipment device using over the air device to device communications, the synchronization information including time synchronization information.

Disclosed are a method and a device for device-to-device communication in a wireless communication system. The method according to one embodiment of the present disclosure may comprise the steps of: receiving, by a first device, information related to a time and / or frequency resource set from a base station; and transmitting, by the first device, a first transmission to a second device in a time and / or frequency resource selected from the time and / or frequency resource set.

Aspects relate to estimating occupancy of a wireless communication channel. A first user equipment (e.g., a first sidelink device) may transmit to a second user equipment (e.g., a second sidelink device) via one or more subchannels allocated for device-to-device communication. The second user equipment may also transmit to the first user equipment via one or more of the subchannels. To mitigate interference on the subchannels, the second user equipment may measure received signal strength on the subchannels to estimate the occupancy of the subchannels (e.g., by calculating a channel busy ratio). In addition, the second user equipment may account for signal leakage from a first subchannel (e.g., on which the first user equipment is transmitting data) onto a second subchannel. As a result, subchannels that may otherwise be indicated as occupied due to leakage may instead by indicated as unoccupied, thereby improving the accuracy of the channel occupancy estimation.

A method for allocating resources for device-to-device transmission between two or more user equipment (UEs) includes transmitting, from a first UE to a second UE, a resource allocation configuration for device-to-device communications. A resource request for a device-to-device transmission is received from the second UE. In response to the resource request, a resource for the device-to-device transmission is selected at the first UE. A resource grant is transmitted to the second UE. The resource grant identifies the selected resource. A device-to-device transmission is received from the second UE over the selected resource.

The methods, devices, and systems discussed herein utilize a 2-stage Sidelink Control Information (SCI) design when a forwarding user equipment device (UE) forwards the time-frequency location of communication resources that (1) have been reserved by another UE, or (2) are available for the receiving UE to use for device-to-device (D2D) data transmissions. In some examples, the 1st and 2nd stages of the SCI are required to decode the data channel. In these examples, part of the SCI is in the 1st stage, and the remaining part is in the 2nd stage. Thus, a UE that receives the 2-stage SCI decodes the 1st stage for sensing whether the associated data channel is being used. The 2nd stage has the remaining relevant SCI required to demodulate and decode the same associated data channel.

The present disclosure relates to systems, apparatuses, methods, and non-transitory computer-readable media for receiving, by a first wireless communication device from a higher layer, Sidelink Positioning Reference Signal (SL PRS) resource configuration for communicating SL PRS in a time-domain unit and sending, by the first wireless communication device, the SL PRS according to the SL PRS resource configuration to a second wireless communication device.

User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and / or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).

An information processing device acquires a total number of second mobile bodies and third mobile bodies within a predetermined area, the second mobile bodies relays a data block between a first mobile body and a predetermined server through device-to-device communication with the first mobile body and through first wireless communication with the predetermined server, and the third mobile bodies relays the data block between the first mobile body and the second mobile bodies through the device-to-device communication. When the total number of second mobile bodies and third mobile bodies is less than a predetermined threshold value, the information processing device instructs either the second mobile bodies or the first mobile body to appoint a different mobile body as a third mobile body by transmitting the data block to the different mobile body through the device-to-device communication.

A wireless communication network is described that includes one or more relay devices and one or more user equipments (UEs). A relay device provides a first bi-directional link comprising a first relay resource and a second bi-directional link comprising a second relay resource, the first bi-directional link and the second bi-directional link communicating with a radio access network (RAN) of a wireless communication network using a first interface, such as a Uu interface. The UE is configured to use a second interface, such as a PC5 interface, for device-to-device (D2D) communication or sidelink (SL) communication in a wireless communication network by a relay device on one or more first relay resources or on one or more of the first relay resource and the second relay resource, direct communication with a network entity of a wireless communication network is performed.

Disclosed are a method and apparatus for device-to-device communication in a wireless communication system. The method according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station by a first device, information regarding a resource area available for communication between the first device and a second device; transmitting, to the second device by the first device, a first transmission including information regarding a valid resource area determined within the available resource area; and receiving, from the second device by the first device, a second transmission as a response to the first transmission on the basis of the valid resource area.

Disclosed are a method and an apparatus for device-to-device communication in a wireless communication system. A method according to an embodiment of the present disclosure may comprise the steps of: transmitting, by a first device, a first transmission to a second device; and receiving, by the first device, a second transmission from the second device in response to the first transmission.

One disclosure of the present specification provides a method by which remote UE performs communication. The method comprises the steps of: receiving a discovery message from relay UE, the discovery message comprising information about a first base station serving the relay UE; determining, on the basis of the information about the first base station, whether the first base station and a second base station serving remote UE are the same; and selecting the relay UE for PC5 (device-to-device communication) connection, on the basis that the first base station and the second base station are the same.

There is provided an apparatus for a network node comprising means for receiving an indication of a serving network name of a first user equipment, the first user equipment configured to operate as a relay between a second user equipment and a network by providing a proximity-based service between the first user equipment and the second user equipment, means for determining an authentication vector for a proximity-based service authentication for the second user equipment based on the serving network name of the first user equipment; and means for providing an indication of the serving network name of the first user equipment to the second user equipment.

Disclosed are a method and apparatus for device-to-device communication in a wireless communication system. The method according to an embodiment of the present disclosure may comprise the steps of: receiving, by a first device, a plurality of carrier wave (CW) signals from a plurality of CW nodes; and transmitting, by the first device, a backscattered first transmission to a second device on the basis of at least one CW signal from among the plurality of CW signals.

There may be one or more systems, methods, and / or devices that address a relay wireless communication scenario. For example, in such a scenario, there may be at least three entities, a remote a wireless transmit receive unit (WTRU) may need to communicate with a network node (e.g., gNB) and / or another WTRU that it cannot directly communicate with. This remote WTRU may communicate with a relay WTRU in order to communicate with the ultimate destination (e.g., another WTRU or a network node). The use of a relay may require establishment and configuration of one or more entities involved.

The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a first terminal in a communication system, according to an embodiment of the present disclosure, comprises the steps of: identifying a sidelink resource; transmitting a beam acquisition request on the sidelink resource; receiving, from a second terminal, a response to the beam acquisition request; and transmitting ID information of the first terminal to the second terminal, wherein the beam acquisition request may be transmitted based on a reference signal without the ID information of the first terminal, and the beam acquisition request may be transmitted based on a portion of one slot.

A terminal includes: a control unit configured to map a signal used for positioning to signals of device-to-device direct communications; and a transmission unit configured to transmit the signals of the device-to-device direct communications to another terminal. The control unit multiplexes the signal used for positioning with a control channel or a shared channel of the signals of the device-to-device direct communications.

A terminal includes: a control unit configured to, when transmitting a first signal related to a device-to-device direct communication, perform an LBT (Listen before talk) for transmitting a second signal to be transmitted after the first signal; and a transmission unit configured to transmit at least the second signal in a case where the LBT is successful. In a case where a duration of the LBT overlaps with the first signal in a time domain, the control unit does not perform an LBT during a time period in which the first signal is transmitted.

The present disclosure relates to determining, by a first wireless communication device, at least one first resource for performing Sidelink (SL) communications with a second wireless communication device; and performing, by the first wireless communication device with the second wireless communication device, the SL communications. The present disclosure relates to receiving, by a first wireless communication device from a second wireless communication device, Channel Occupy Time (COT) sharing information indicating sharing a COT of the second wireless communication device and determining, by the first wireless communication device, at least one resource for the COT. The second wireless communication device occupies the COT in response to performing a channel access procedure for a carrier.