168 results about "Device to device" patented technology

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 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.

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).

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.

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).

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 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.

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, 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.

Embodiments of the present disclosure relate to device-to-device assisted positioning in wireless cellular technology. A location of a user equipment (UE) can be determined based on information communicated via direct UE-to-UE communication to obtain more measurements of location metrics that can be used to determine a relative or absolute location of the UE. In one implementation, a user equipment can receive a positioning reference signal over a direct connection with a second UE from which timing information related to a distance between the UE and the second UE can be derived; determine a first location metric based on the positioning reference signal, the first location metric related to a location of the UE relative to the second UE; and determine a location of the UE based at least in part on the location metric.

A method performed by a wireless transmit / receive unit (WTRU) may include sending, to a network, a registration message indicating the WTRU is capable of device-to-device (D2D) communication and sending a request for assistance in discovering at least one other WTRU in proximity to the WTRU. The method may include receiving, from the network, in response to the request for assistance in discovering the at least one other WTRU, assistance information including one or more of a unique identifier or filtering information. The method may include performing, using the assistance information, a device discovery procedure to discover the at least one other WTRU, wherein the device discovery procedure comprises at least one of: monitoring for signals from the at least one other WTRU using the assistance information, or sending a discovery announcement based on the assistance information and transmitting application data directly to the at least one other WTRU.

This disclosure relates to "Power-efficient synchronization for long-distance device-to-device communication." The invention provides a communication network that may include user equipment (UE) devices. When a first UE device goes offline and receives an emergency message, the first UE device may transmit a device-to-device signal for reception by a second UE device. This signal may include one or more preambles that precede the emergency message and are used by the second UE device to perform synchronization with the first UE device. The second UE device may periodically activate a receiver to listen for the signal during a window sequence, receive a preamble sequence during one window of the window, and synchronize the timing of the second UE device with the first UE device based on the preamble sequence to receive the emergency message. This allows the UE device to be synchronized to transmit emergency messages over long distances while consuming minimal power on the second UE device.

The present disclosure relates to sidelink DRX operation in the UEs. One example method comprises: receiving by a first UE a first set of DRX configuration parameters from a network device, wherein the first set of DRX configuration parameters comprise: a set of cellular link DRX configuration parameters between the first UE and the network device, and a first set of sidelink DRX configuration parameters for device to device (D2D) communication; operating, by the first UE, in DRX mode on the sidelink communication according to the first set of DRX configuration parameters.

A method for energy-efficient communication in a non-terrestrial network (NTN) (100) comprising a plurality of user equipment (120) (UEs) and a satellite (110). The method includes coordinating wake-up and sleep times of UEs (120) located in close proximity, establishing a connection between a first UE (121) and the satellite (110), and performing an uplink transmission. It is characterized by establishing a device-to-device connection between the first UE (121) and a next intermediate UE (122) during a buffer time, transferring scheduling information, and allowing the intermediate UE (122) to skip certain procedures based on the received information. Skipping procedure is realized for the rest of the UEs (120) that are in close proximity. The method optimizes power consumption for various IoT applications.

Disclosed are techniques for wireless communication. In an aspect, a first user equipment (UE) performs a limited beam sweep of one or more transmit beams on a second frequency band in an estimated direction from the first UE to the second UE, wherein the estimated direction is based on one or more parameters received over a previously established signaling radio bearer (SRB) on a first frequency band and / or a device-to-device discovery procedure performed on the first frequency band, receives, over the SRB, a confirmation that a data radio bearer (DRB) has been established on the second frequency band with at least one transmit beam of the one or more transmit beams, and sends, to the second UE, a data flow over the DRB on the second frequency band using the at least one transmit beam.

Physical layer processing and procedures for device-to-device (D2D) discovery signal generation and transmission and scheduling of D2D discovery signals are described. Detection and measurement of a D2D discovery signal, D2D signal identity management, and monitoring by a wireless transmit / receive unit (WTRU) of PDCCH for D2D discovery scheduling is described, as is a WTRU that may be configured with a D2D-specific transmission / reception opportunity pattern. The discovery signal may carry a payload for explicit information about user and / or service identity, and may be mapped to physical resources in such a way as to decouple transmission / reception of the discovery signal from downlink operations. A WTRU may measure a D2D discovery signal quality and report to the network.

A managing node for controlling device-to-device communications of sensor data between managed nodes of vehicles, user devices, and / or roadside infrastructure. Operations include determining capacity of wireless communication links of the managed nodes. Operations include determining data generation rate of at least one sensor to be communicated through the wireless communication links. Operations include selecting one of the following based on the capacity of the wireless communication links and the data generation rate: compress data of the at least one sensor before transmission through at least one of the wireless communication links; transmit uncompressed data of the at least one sensor through the at least one of the wireless communication links; and preprocess data of the at least one sensor and transmit the preprocessed data through the at least one of the wireless communication links. Operations include initiating performance of the selection.

The present disclosure relates to User Equipment positioning apparatuses, methods and computer programs. Certain examples provide a User Equipment, UE (110), comprising means (500) for: receiving (201), from a Radio Access Network, RAN, node (120), positioning configuration information (801, 801′) for configuring the UE to perform a device-to-device communication channel based positioning procedure (803, 803′) with one or more other UEs (110a, 110b) for enabling the UE to determine information (804) indicative of one or more positions of the one or more other UEs relative to the UE; performing (202), based at least in part on the configuration information, the device-to-device communication channel based positioning procedure and determining therefrom information indicative of the one or more positions of the one or more other UEs relative to the UE; and transmitting (203), to the RAN node, the information indicative of the one or more positions of the one or more other UEs relative to the UE.

A method of performing device-to-device (D2D) communication by a first device includes obtaining at least one measurement value corresponding to a relative velocity between the first device and a second device; adjusting at least one transmission parameter based on the at least one measurement value; providing the adjusted at least one transmission parameter to the second device; and transmitting data to the second device based on the adjusted at least one transmission parameter.

A method and system are described that involve operations to communicatively couple a personal mobile device to an additional device via a casino network. The operations are further to detect a user-input gesture, performed via one or more of the personal mobile device or the additional device, to transfer a gaming object between the personal mobile device and the additional device. The operations are further to, in response to detection of the user-input gesture, route communication of the transfer to a wagering game server connected to the casino network. The operations are further to transfer, via the wagering game server, the gaming object between the personal mobile device and the additional device and animate, via a display device of one or more of the personal mobile device or the additional device, transfer of the gaming object.