Abstract: A terminal includes: a receiver configured to receive third information related to transmission power and fourth information related to transmission power; a controller configured to generate measurement information for each of a plurality of sub-configurations for measurement in accordance with the third information and the fourth information; and a transmitter configured to transmit the measurement information, wherein the controller estimates second information related to reception power of a third signal corresponding to each of the plurality of sub-configurations for measurement according to first information related to reception power of a second signal received by the receiver, the third information, and the fourth information, and generates the measurement information.

Abstract: A method and apparatus for transmitting uplink control information and a communication system. The method includes a terminal equipment transmits uplink control information, the uplink control information being related to at least two TRPs. The uplink control information is transmitted in a manner of spatial diversity. At the terminal side, the same data may reach a network side via different spatial domain paths or via different TRPs (transmission and reception points). In a case where blockage occurs in a path, other paths may still continue to operate, thereby ensuring high reliability of the uplink control information. The number of retransmissions of the uplink control information may be avoided or reduced, thereby lowering transmission latency of uplink data.

Abstract: An optical signal transmission device and method based on digital predistortion in a symbol domain is provided. The optical signal transmission device includes: a memory; and a processor coupled to the memory to control execution of a process to: perform digital predistortion processing on a symbol sequence of a signal to be transmitted to obtain a digital predistortion processed signal; perform short-pulse shaping processing on the digital predistortion processed signal to obtain a short-pulse shaping processed signal, wherein a memory length introduced by the short-pulse shaping processing is less than or equal to a memory length of the optical transmitter; and generate and transmit an optical signal based on the short-pulse shaping processed signal.

Abstract: A terminal device includes: a receiver configured to be able to receive an RRC (radio resource control) message and a first signal from a base station device; and processor circuitry configured to be able to perform configuration according to a first parameter in a case where the RRC message includes the first parameter, wherein the first parameter includes a second parameter indicating a group identifier of a current serving cell and a third parameter related to a configuration of a first LTM (L1/L2 Triggered Mobility) candidate and a group identifier of a cell of the first LTM candidate, the processor circuitry stores a second value of the second parameter in a first variable regardless of whether a first value is stored in the first variable in a case where the second parameter is included in the RRC message.

Abstract: A Doherty amplification device includes a distributor to distribute, into first and second signals, an input signal after distortion-compensation, first and second amplifiers, a combiner to combine the amplified first and second signals, and an adjuster between the distributor and the first or second amplifiers and to include a first calculation circuit to obtain a first-characteristic indicating a relationship of a gain of an output signal with respect to reference-power of the input signal, based on the output signal and the input signal, a classification circuit to classify the first-characteristic into regions according to the reference-power, a second calculation circuit to obtain a statistical-value of the gain for each regions, and a determination circuit to set, in the adjuster, a phase-delay at which distortion to be generated in the output signal is minimized, based on the statistical-value, wherein the adjuster adjusts the phase-delay of the first or second signals.

Abstract: An inter-device coordination apparatus includes a receiver configured to receive first sidelink information from a second terminal equipment and second sidelink information from a third terminal equipment; a processor configured to, according to the first sidelink information and the second sidelink information, determine that a conflict occurs in a first resource reserved by the first sidelink information; and a transmitter configured to transmit to the second terminal equipment first coordination information for indicating that a conflict occurs in the first resource, wherein a priority of the first coordination information is equal to the highest priority in a priority of the first sidelink information and a priority of the second sidelink information.

Abstract: Provided is an optical transmission device facing another optical transmission device via a transmission line having a predetermined transmission line loss. The optical transmission device includes a first transceiver that transmits first measurement light based on an optical time domain reflectometer (OTDR) to the transmission line and receives first return light based on reflection of the first measurement light from the transmission line, a measurer that measures a first optical loss in the transmission line based on the first measurement light and the first return light, a receiver that receives predetermined information related to a second optical loss in the transmission line from the another optical transmission device, and a calculator that calculates an inter-device distance between the optical transmission device and the another optical transmission device based on the first optical loss, the second optical loss, and the transmission line loss.

Abstract: A group migrating apparatus, configured in a second donor device, wherein the apparatus includes processor circuitry configured to, when a migrating IAB-node moves from a first donor device to the second donor device, perform at least one of the following processing enabling the migrating IAB-node to update a first TNL address used for a first F1-C connection to a second TNL address, enabling the migrating IAB-node to update a third TNL address used for a second F1-C connection to a fourth TNL address, configuring the migrating IAB-node with a fourth TNL address used for setting up a second F1-C connection, adding for the migrating IAB-node a second TNL address used for a first F1-C connection, configuring the migrating IAB-node with a third TNL address used for setting up a second F1-C connection, and adding for the migrating IAB-node a fourth TNL address used for a second F1-C connection.

Abstract: An optical transmission system includes a first optical transmission device that transmits a first signal light in an actual operation and a first pseudo light having a wavelength different from that of the first signal light, a second optical transmission device that receives the first signal light and the first pseudo light from the first optical transmission device, a measurer that measures a first quality of the first pseudo light between the first optical transmission device and the second optical transmission device, and an estimator that estimates a second quality of the first signal light between the first optical transmission device and the second optical transmission device based on the first quality and an indicator value of wavelength dependence in a signal band.

Abstract: A method and an apparatus for evaluating transmission impairments of a multiplexing converter. According to the method, impairments of a multiplexing converter are equivalent to the equivalent multiplicative noise and the equivalent additive noise, so as to allow evaluation of transmission impairments of the multiplexing converter, thereby to allow evaluation of the performance of a communication system. The multiplexing converter is a multiplexing analog-to-digital converter, or a multiplexing digital-to-analog converter. According to the present application, impairments of a multiplexing converter can be evaluated accurately, the performance evaluation of a communication system using the multiplexing converter is given, without being affected by an amplitude, a modulation format and a transmission rate of an input signal.

Abstract: A semiconductor device includes: a substrate; an electron traveling layer provided above the substrate; an electron supply layer provided above the electron traveling layer; gate, source and drain electrodes provided above the electron supply layer; first protrusions that extend from a lower end of the source electrode through an inside of the electron supply layer to below an upper surface of the electron traveling layer; and second protrusions that extend from a lower end of the drain electrode through the inside of the electron supply layer to below the upper surface of the electron traveling layer, wherein a first volume ratio of the first protrusions in a first area where the first protrusions is provided is 60% or less, and a second volume ratio of the second protrusions in a second area where the second protrusions is provided is 60% or less.

Abstract: A terminal apparatus includes: a controller configured to perform control corresponding to a first cell state that is a first mode and a second cell state that is a second mode different from the first mode; and a receiver configured to receive information regarding a second condition that is a condition indicating that a third event condition is no longer fulfilled in a case of a second time at which a predetermined duration has elapsed from a first time from the base station apparatus, wherein the receiver receives a PDCCH notifying of validation of the third event condition from the base station apparatus, and the controller controls to perform evaluation of a first event condition of conditional handover corresponding to the first cell state until a first condition that the PDCCH is received is fulfilled.

Abstract: Signal transmission and reception methods and apparatuses. The method includes: determining by a terminal equipment that a time-frequency resource of a first uplink signal and a time-frequency resource of a second uplink signal at least partially overlap in a time domain or a time-frequency domain; comparing the first uplink signal and the second uplink signal, the comparing at least comprising comparing a first priority of the first uplink signal and a first priority of the second uplink signal, the first priority being related to content carried or indicated by an uplink signal; and transmitting the first uplink signal and/or the second uplink signal to a network device.

Abstract: A mobile communication system includes a base station and a mobility management device and controls a connection between a mobile terminal and a plurality of networks. The mobility management device is connected to the base station and manages mobility of the mobile terminal in a cell of the base station. The mobility management device acquires, from the mobile terminal, network identification information that identifies a first network when the mobile terminal connects to the base station. The base station receives, from the mobile terminal, quality information that indicates communication quality between a base station of the first network identified by the network identification information and the mobile terminal. The mobility management device instructs the mobile terminal, based on the quality information, to connect to the first network identified by the network identification information.

Abstract: A method and an apparatus for detecting beam failure. The method comprises: receiving a beam failure instance indication by a medium access control (MAC) entity of a terminal equipment, incrementing a transmission reception point (TRP)-specific beam failure indication count by 1, and in a case where the TRP-specific beam failure indication count is greater than or equal to a TRP-specific beam failure instance maximum count, determining that a beam failure occurs in a transmission reception point or beam failure recovery (BFR) of the transmission reception point is triggered or a beam failure indication of the transmission reception point is triggered.

Abstract: A sidelink resource reselection method and apparatus. The method includes performing resource re-evaluation and/or pre-emption check on sidelink resources initially selected for performing a plurality of times of transmission of a transport block, and reselecting at least one sidelink resource from a sidelink resource set in a case where one or more sidelink resources are not in a reselection candidate resource set, wherein a currently reselected sidelink resource set is determined according to time frequency sources of the initially selected sidelink resources.

Abstract: An optical transmission system includes a first optical transmission device that transmits an OSC (Optical Supervisory Channel) light to an optical transmission line, and a second optical transmission device that receives for receiving the OSC light from the optical transmission line. The first optical transmission device includes a first controller that detects a transmission line disconnection before communication with the OSC light is established in the optical transmission line, based on a first detection method, and a second optical transmission device including a second controller that detects a transmission line disconnection after the communication with the OSC light is established in the optical transmission line, based on a second detection method different from the first detection method.

Abstract: An optical transmission system includes a first optical transmission device and a second optical transmission device facing each other via an optical transmission line. The first optical transmission device includes a first optical outputter that outputs first OSC light, a first pseudo light source that outputs first pseudo light including a wavelength band of first signal light, and a first transmitter that transmits first multiplexed light obtained by multiplexing the first OSC light and the first pseudo light toward the second optical transmission device. The second optical transmission device includes a second optical outputter that outputs second OSC light, a second pseudo light source that outputs second pseudo light including a wavelength band of second signal light, and a second transmitter that transmits second multiplexed light obtained by multiplexing the second OSC light and the second pseudo light toward the first optical transmission device.

Abstract: An optical transmission device includes a light output unit that outputs OSC (Optical Supervisory Channel) light, a calculator that calculates a tilt amount of a tilt occurring in a pseudo light in an optical transmission line connecting the optical transmission device and another optical transmission device facing the optical transmission device when establishing communication between the optical transmission device and the another optical transmission device based on the OSC light and the pseudo light including a wavelength band of a signal light repeated by the optical transmission device, and a controller that controls output of the pseudo light based on the tilt amount.

Abstract: A Raman amplifier includes a first light source that outputs a primary pumping light, which propagates in a same direction as a propagation direction of a signal light, to an optical transmission line for Raman amplification, a second light source that outputs a secondary pumping light, which pumps and amplifies the primary pumping light and propagates in the same direction as the propagation direction, to the optical transmission line, and a control unit that controls a gain for the signal light by adjusting power of the secondary pumping light.