Abstract: Systems and methods are provided that deliver unequal error protection for multiple payloads in a single forward error correction codeword at the air interface layer of wireless communication networks. To simultaneously solve the two problems of (i) providing differential treatment for high and low priority payloads (e.g. higher QoS for payload with higher priority), and (ii) enhancing the overall coding gain, a joint coding scheme is provided in which a high-priority payload is combined with a low priority payload, and a combined payload is jointly encoded to generate a single long codeword. For example, one or more small URLLC messages (e.g. from sensors) can be combined with a video payload or an eMBB payload.

Abstract: A respiratory mask system includes a mask interface and a headgear assembly. The headgear assembly is adjustable and comprised of an elastic portion, a non-elastic portion and a restriction mechanism configured to provide a force resisting movement of the non-elastic portion when the elastic portion is extended. There is a support beam coupled to the non-elastic portion and extending along a portion of the headgear that is curved along its longitudinal extent. In this way particular seal modules can be comfortably fitted to a user and any blow off force is mitigated. A particular example of the respiratory mask system includes provision for removable attachment between the seal and a mask frame, the mask frame and a yoke of the headgear; and between a conduit and the mask frame.

Abstract: Some embodiments of the present disclosure relate to inferencing using a trained deep neural network. Inferencing may, reasonably, be expected to be a mainstream application of 6G wireless networks. Agile, robust and accurate inferencing is important for the success of AI applications. Aspects of the present application relate to introducing coding theory into inferencing in a distributed manner. It may be shown that redundant wireless bandwidths and edge units help to ensure agility, robustness and accuracy in coded inferencing networks.

Abstract: An operation and maintenance device includes a floating tray, an unlocking assembly, and a hook assembly. The unlocking assembly movably disposed on the floating tray, one end of the unlocking assembly includes a first mounting frame. The hook assembly connected to the unlocking assembly, the hook assembly comprising a second mounting frame and a hook connected to the second mounting frame, the second mounting frame is rotatably connected to the first mounting frame to drive the hook to rotate and be engaged with the slidable locking mechanism, the unlocking assembly is used to drive the hook to translate. In addition, the present disclosure also provides a cabinet.

Abstract: The disclosed system receives an indication to seek assistance from a second UE, including a unique identifier of the second UE. The system generates a shared digital location configured to present an output of the computer program and a first avatar indicating a cursor location and an input provided by the first UE. The system generates a unique identifier of the shared digital location. The system generates a message including the unique identifier associated with shared digital location and sends the message to the second UE. The system receives a selection of the unique identifier of shared digital location included in the message from the second UE. Upon receiving the selection, the system generates a second avatar representing indicating a cursor location associated with the second UE. The system provides the shared digital location, the first avatar, and the second avatar to the first and second UE.

Abstract: Introduced here is a computer-implemented system for determining current conditions of electronic devices. The system receives an indication from an electronic device that its user is seeking to trade-in the handheld wireless device. The system presents a user interface with a touch screen verification widget for determining operability of a touchscreen of the electronic device. The system receives an identification number and verifies that the electronic device is available for trade-in using the identification number. The system prompts upload of image data depicting the electronic device via a display mechanism. The system inputs the image data to a machine learned model that is trained to determine make, model, and physical condition of electronic devices. The system receives outputs from the machine learned model and determines the current condition of the electronic device based on the outputs, the operability, and the verification.

Abstract: An ultrasonic flowmeter and a fluid pipeline. The ultrasonic flowmeter includes: a housing, which defines a fluid inlet and a fluid outlet with a fluid passage therebetween; and at least two pairs of ultrasonic sensors, wherein each pair of the at least two pairs of ultrasonic sensors have a first ultrasonic sensor and a second ultrasonic sensor arranged opposite to each other; wherein at least some of the at least two pairs of ultrasonic sensors are arranged in grooves on an inner wall of the fluid passage, and center points of front end faces of at least some of the at least two pairs of ultrasonic sensors are located on a cylindrical curved surface defined by the inner wall of the fluid passage.

Abstract: Aspects of the present disclosure enable the determination of beamforming information and channel information for communication between a transmitter and receiver by using a propagation path map. The propagation path map may provide an association between a location of the receiver and channel characteristics between the transmitter and the receiver via a direct propagation path and possible reflection propagation paths. The propagation path map may be used to obtain a more accurate location of the receiver, AoA at the transmitter and/or receiver, AoD at the transmitter, and/or receiver and other sensing information for beamforming and improving the RF propagation map. The association between a location of the receiver and channel characteristics between the transmitter and the receiver may then aid in performing beam measurements and/or channel measurements.

Abstract: A fixing device for placing data storages of different sizes includes a storage shelf, a separator plate, and at least two mounting brackets. The storage shelf defines a receiving space, the storage shelf includes a first wall and a second wall arranged at intervals along a first direction, the first wall and the second wall define the receiving space. The separator plate is detachably installed in the storage shelf to change a height of the receiving space along the first direction. The at least two mounting brackets have two different sizes and are detachably received in the receiving space for receiving the data storages. A host having the fixing device is also provided.

Abstract: A method of non-interactive zero-knowledge crowd verifiable digital contact tracing, system and devices that provides improved accuracy and/or privacy by improving the validity of digital contact tracing sources. Private information associated with a respective user intended for a receiver is uploaded to a data server. The receiver is notified that the private information has been uploaded to the data server. A proof of the private information is generated using a proof function of a non-interactive zero-knowledge cryptographic protocol and added to a contact tracing blockchain for the respective user. A second blockchain transaction is added in response to verification of the proof by a verifier network using a verification function of the non-interactive zero-knowledge cryptographic protocol and the receiver is be notified.

Abstract: A method of quantum key distribution making use of 2-qubit entanglement, by which one entangled qubit is sent from an operator O to Alice and the other entangled qubit is sent from operator O to Bob, making for key-sharing among three parties (multi-user quantum key distribution, i.e. MU QKD). Alice and Bob each measures a respective sequence of qubits randomly along either one of two states, records the measurements in a respective list, and encodes the bits in an encoded list. The encoded lists are sent to operator O for entanglement to be verified with the CHSH inequality. Bob's verified list is sent to Alice and vice-versa, allowing Alice and Bob to further verify correlation. Non-entangled bits are rejected until Alice and Bob have a similar key, being a reconciled quantum-based key as sought.

Abstract: A wireless network can generate candidate signal configurations for physical transmissions to or from a user equipment (UE) in a radio environment. The generation of candidate signal configurations can be performed using a first neural network that is associated with the UE. These signal configurations can then be evaluated using a second neural network that is associated with the radio environment. The second neural network can be trained using measurements from previous physical transmissions in the radio environment. The trained second neural network generates a reward value that is associated with the candidate signal configurations. The first neural network is then trained using the reward values from the second neural network to produce improved candidate signal configurations. When a signal configuration that produces a suitable reward value is generated, this signal configuration can be used for the physical transmission in the radio environment.

Abstract: Methods of distributing a quantum-based cryptographic key to multiple network nodes. A multi-user quantum key distribution from one node to two further nodes can be extended to a binary tree structure where any further node can participate in quantum key distribution with its two child nodes. A key generated in a 3-node subgroup can be stitched with a key from of a parent 3-node subgroup, or a child 3-node group, and key confirmations can be provided through authenticated classical channels. Classical channels can also be used to communicate and relay membership updates, allowing a key operator at a binary tree's root node to update keys accordingly.

Abstract: A low density parity check (LDPC) channel encoding method is used in a wireless communications system. A communication device encodes an input bit sequence by using an LDPC matrix, to obtain an encoded bit sequence for transmission. The LDPC matrix is obtained based on a lifting factor Z and a base matrix. The base matrix may be one of eight exemplary designs. The encoding method can be used in various communications systems including fifth generation (5G) telecommunication systems, and can support various encoding requirements for information bit sequences with different code lengths.

Abstract: A method, apparatus and system for implementing zero-knowledge proofs is provided. Partitioned garbled circuits are used to achieve a joint zero-knowledge proof system with full syntax verification. A polylithic syntax is used for handling complex semantics involving more than one statement to be proved and verified. Multiple verifiers can participate in a coordinated manner to perform the verification. Different verifiers can perform different parts of the verification.

Abstract: The present disclosure relates, in part, to non-terrestrial communication systems, and in some embodiments to the integration of terrestrial and non-terrestrial communication systems. Non-terrestrial communication systems can provide a more flexible communication system with extended wireless coverage range and enhanced service quality compared to conventional communication systems. A method representative of aspects of the present application includes receiving, by an apparatus connected in a first sub-system, from a radio access network, configuration information for performing a channel condition measurement on a second sub-system, reporting, by the apparatus to the radio access network, channel condition measurement of a downlink reference signal received from the second sub-system, transmitting, by the apparatus, a wireless transmission to the second sub-system responsive to the channel condition measurement meeting a predefined condition.

Abstract: Signaling resource overhead associated with current communication link adaptation mechanisms can be quite large and such mechanisms typically rely upon a channel state information (CSI) feedback process that can result in poor scheduling performance. Embodiments are disclosed in which a first device channel state information characterizing a wireless communication channel between the first device and a second device, and trains a machine learning (ML) module of the first device using the CSI as an ML module input and one or more modulation and coding scheme (MCS) parameters as an ML module output to satisfy a training target. By applying the concepts disclosed herein, overhead associated with feedback for MCS selection may be reduced compared to conventional link adaptation procedures, because, once ML modules at a pair of devices have been trained, the MCS selection by the ML modules can be done without requiring the ongoing feedback of CSI.

Abstract: An information transmission method and an apparatus. The information transmission method includes: a receive end sends first indication information, where the first indication information indicates a target receiving mode of the receive end, and the target receiving mode is one of a plurality of receiving modes. The receive end receives service information based on the target receiving mode. The receive end performs decoding processing on the service information based on the target receiving mode. In this way, power consumption can be further reduced, and information transmission of a plurality of service types can be supported, thereby improving information transmission flexibility and user experience.

Abstract: A method and system are provided for scheduling data transmission in a Multiple-Input Multiple-Output (MIMO) system. The MIMO system may comprise at least one MIMO transmitter and at least one MIMO receiver. Feedback from one or more receivers may be used by a transmitter to improve quality, capacity, and scheduling in MIMO communication systems. The method may include generating or receiving information pertaining to a MIMO channel metric and information pertaining to a Channel Quality Indicator (CQI) in respect of a transmitted signal; and sending a next transmission to a receiver using a MIMO mode selected in accordance with the information pertaining to the MIMO channel metric, and an adaptive coding and modulation selected in accordance with the information pertaining to the CQI.

Abstract: In accordance with an embodiment, a network device has an input port for receiving input packets, and an output port for sending output packets, where the input packets and output packets have context layer information. The network device also includes a processor configured to process the input packets and output packets using a network protocol having a context layer.