Abstract: The disclosed systems, apparatuses and methods are directed to controlling a difference between a first center frequency of a first optical subcarrier and a second center frequency of a second optical subcarrier of an optical super-channel signal in an optical network. The method comprises modulating the first optical subcarrier at a first optical side component frequency with a first side modulation frequency and modulating the second optical subcarrier at a second optical side component frequency with a second side modulation frequency. The method further comprises detecting a radio-frequency (RF) power at a modulated beat frequency tone in the modified optical signal.

Abstract: Embodiments of the present invention relate to communications technologies, and provide a data transmission method and an apparatus. The method includes: sending, by a base station, a grouping instruction to a target terminal, where the grouping instruction is used to group, in a preset grouping manner, terminals in a cell in which the target terminal is located into N groups, totally or partially different resources are allocated to terminals in different groups of the N groups, and a resource corresponding to an ith group of the N groups is used by a terminal in the ith group in uplink non-scheduled transmission; and receiving data that is sent by the target terminal using a target resource. In the solutions, terminals in a cell are grouped, and terminals in a same group contend for a resource allocated to the group. This mitigates resource collision when an uplink non-scheduled transmission solution is used.

Abstract: A tracing system for managing failures of a service provided by a distributed system, the tracing system comprising a state machine store configured to store a distributed execution state machine (DESM), wherein states of the DESM correspond to predetermined milestones of the service and transitions of the DESM correspond to one or more instructions of the service; a logging unit configured to record events of the distributed system in a log store, wherein an event indicates a state and/or a transition of the DESM; a process reconstruction subsystem configured to reconstruct a trace of the DESM from the events stored in the log store; and a linking unit configured to link logging information of the distributed system to the states.

Abstract: An integrated circuit package apparatus deployed with an antenna and a method for manufacturing an integrated circuit package apparatus, where the integrated circuit package apparatus includes a package substrate, an antenna, a chip, and a connection circuit. The package substrate includes at least one ground plane, the antenna is deployed on an external surface of one side of the package substrate and is located on one side of the at least one ground plane, the chip and the connection circuit are deployed on the other side of the at least one ground plane, where the antenna is isolated from the chip and the connection circuit using the at least one ground plane, and the antenna is coupled to the chip using the connection circuit and a first metal through hole in a thickness direction of the package substrate.

Abstract: Please replace the original abstract paragraph with the following new paragraph. A mobile terminal includes a housing and a camera. The camera is rotatably coupled to the housing and configured for locking at a specified position. When the camera is locked at a first specified position, the camera is located inside the housing and one side of the camera is exposed outside the housing, and when the camera is locked at a second specified position, a lens of the camera is exposed outside the housing. The mobile terminal further includes a drive apparatus and a touch apparatus. The drive apparatus is configured to drive the camera to rotate, and the touch apparatus includes a touch sensor and a control chip. After receiving a touch signal from the touch sensor, the control chip controls the drive apparatus to drive the camera to rotate to the second specified position.

Abstract: A bit-level operation may be implemented prior to modulation and resource element (RE) mapping in order to generate a NoMA transmission using standard (QAM, QPSK, BPSK, etc.) modulators. In this way, the bit-level operation is exploited to achieve the benefits of NoMA (e.g., improved spectral efficiency, reduced overhead, etc.) at significantly less signal processing and hardware implementation complexity. The bit-level operation is specifically designed to produce an output bit-stream that is longer than the input bit-stream, and that includes output bit-values that are computed as a function of the input bit-values such that when the output bit-stream is subjected to modulation (e.g., m-ary QAM, QPSK, BPSK), the resulting symbols emulate a spreading operation that would otherwise have been generated from the input bit-stream, either by a NoMA-specific modulator or by a symbol-domain spreading operation.

Abstract: Systems and methods are provided that allow a transmit receive point (TRP) that is a member of a group of TRPs to convey a characteristic of the group through the transmission of a synchronization sequence. A transmit receive point in a first group of TRPs transmits with a first synchronization sequence. A TRP in a second group of TRPs transmits with a second synchronization sequence, the first and second synchronization sequences being different from each other. The TRPs of the first group share a common first characteristic and the TRPs of the second group share a common second characteristic. The transmission of the first synchronization sequence conveys the first common characteristic, and the transmission of the second synchronization sequence conveys the second common characteristic.

Abstract: The disclosure provides a multifocal display device, comprising a display configured to generate an image, and a controller configured to control the display according to a bit sequence provided over a determined time period to generate the image with one or more colors. The bit sequence includes for each color a subsequence of bits of different significance. Neither the first bit nor the last bit of the subsequence for the respective color is the most significant bit of the subsequence.

Abstract: Embodiments described provide a data transmission method, a network device, and a terminal device. The method includes: sending, by a network device, control information corresponding to target data to a terminal device on a control resource, where the control resource and a data resource have a correspondence, and the control resource is used by the terminal device to determine the data resource on which the target data is received; and sending, by the network device based on the correspondence, the target data to the terminal device on the data resource. In the embodiments, after sending the control information corresponding to the target data on the control resource, the network device can send the target data on the data resource based on the correspondence between the control resource and the data resource, so that terminal devices having different bandwidth capabilities are able to receive the target data.

Abstract: Embodiments provide a Polar code transmission method and apparatus. A bit sequence is encoded into a code sequence using Polar code by a network device. The bit sequence contains a control signaling and a Cyclic Redundancy Code (CRC) sequence. The code sequence is transformed into M copies such that an ith information copy of the M copies multiples by a first matrix of the power of (i?1). M is an integer and M>0. M copies of codeword was encoded by Polar code, the M copies implicitly conveys different time stamp information, which is suitable for the transmission of PBCH in 5G communication system, signaling overhead is also reduced.

Abstract: This application provides an information transmission method and apparatus. A first device sends control information to a second device, where the control information is carried on a control channel, a position of an orthogonal frequency division multiplexing OFDM symbol, to which the control channel is mapped, in a time unit is at least one position in a position set, the time unit is a subframe, a slot, or a mini-slot, the control information is used to schedule at least one resource unit, and the resource unit includes at least one OFDM symbol. In the foregoing solution, complexity of detecting a control channel by a receive end may be reduced.

Abstract: Embodiments of this application provide a key-value storage method, apparatus, and system, to resolve at least a problem that currently no related solution can combine key-value storage with such efficient storage protocol as an NVMe protocol. The method includes: writing, by a host after detecting a key-value storage request, a first instruction code and address information that are carried in the key-value storage request to a field defined in a protocol, to constitute a first storage request instruction sequence, where the first instruction code is an instruction code defined based on a reserved extension field in the protocol; and interacting, by the host, with the storage controller, so that the storage controller obtains the first storage request instruction sequence. This application is applicable to the field of storage technologies.

Abstract: This application provides a polar code encoding method and apparatus. The method includes: segmenting, by a sending device, a to-be-encoded sequence according to a preset rule; determining a quantity of parity check frozen bits, locations of the parity check frozen bits, a quantity of information bits, locations of the information bits, a quantity of frozen bits, and locations of the frozen bits in each segment; then placing the information bits and the frozen bits at the corresponding locations; determining values of the parity check frozen bits; then performing polar code encoding on the to-be-encoded sequence; and sending an encoded sequence. According to this method, a process of determining the quantity of parity check frozen bits and the locations of the parity check frozen bits is simplified, thereby effectively improving processing efficiency.

Abstract: An electronic device for encoding a picture is described. The electronic device includes a processor and instructions stored in memory that are in electronic communication with the processor. The instructions are executable to encode a gradual temporal layer access (GTLA) picture. The instructions are further executable to send the GTLA picture.

Abstract: A liquid crystal display (LCD), an electronic device, and an LCD manufacturing method, where the LCD includes transparent material layers and non-transparent material layers that are disposed in a stacked mode. There is a local transparent region on the LCD. A non-transparent material is applied to the several non-transparent material layers in the local transparent region to form a transparent channel in the local transparent region along a stacking direction. An optical component such as a camera, an ambient light sensor, or an optical fingerprint sensor is completely or partially disposed in the transparent channel of the LCD display.

Abstract: Embodiments of the present application provided a method for downlink control information transmission, a base station and a terminal. In one aspect, by acquiring subframe configuration information of a terminal, where the subframe configuration information is used for indicating a first subframe for transmitting common control information and a second subframe for transmitting dedicated control information, the embodiments of the present application enable the common control information to be transmitted to the terminal over the first subframe and/or enable the dedicated control information to be transmitted to the terminal over the second subframe according to the subframe configuration information, thereby achieving downlink control information transmission between the base station and the terminal.

Abstract: Embodiments of the present disclosure provide a message feedback method and apparatus for carrier aggregation. The method includes: receiving, by a terminal in a first downlink subframe on a carrier aggregation group, a data packet sent by a base station, where the carrier aggregation group includes a first carrier and a second carrier; determining a first timing, based on a subframe configuration for the carrier aggregation group and a mapping relationship between subframe configurations for carrier aggregation groups and timings; determining a first uplink subframe from subframes on the carrier aggregation group based on the first timing; and sending, to the base station, a feedback message in the first uplink subframe. In this way, the first uplink subframe is determined on the entire carrier group for sending the feedback message, and a selectable range is larger.

Abstract: A communication system, comprising: a radio access network (RAN) node and a core network (CN) node, where the CN node is configure to send a first network slice management request message to the RAN node, wherein the first network slice management request message comprises a network slice identifier corresponding to a network slice allowed to be accessed by a terminal device; and where the RAN node is configured to send a first network slice management request reply message to the CN node.

Abstract: Different numerologies may be used to communicate orthogonal frequency division multiplexing (OFDM)-based signals over different frequency sub-bands of a given carrier. This may allow the OFDM-based signals to efficiently support diverse traffic types. In some embodiments, the numerology of OFDM-based signal depends on a bandwidth of the frequency sub-band over which the OFDM-based signals are transmitted. In some embodiments, the OFDM-based signals are filtered OFDM (f-OFDM) signals, and the pulse shaping digital filter used to generate the f-OFDM signals allows the receiver to mitigate interference between adjacent f-OFDM signals upon reception, thereby allowing f-OFDM signals to be communicated over consecutive carriers without relying on a guard band.