Abstract: A transmission device, which is capable of wirelessly communicating with a reception device by using a first frequency band that does not need a license, the transmission device including, a controller configured to verify whether the first frequency band is not used by other transmission devices, and shift, in a time direction, a first symbol including a first control channel and a first shared channel in a first communication direction, or a second symbol including a second shared channel in a second communication direction different from the first communication direction, and a transmitter configured to transmit, to the reception device, a first control signal and first data, which are allocated to the first symbol, by using the first control channel and the first shared channel, respectively, or second data allocated to the second symbol by using the second shared channel.

Abstract: A semiconductor device includes a first electrode, a second electrode located on the first electrode, a semiconductor part located between the first electrode and the second electrode, a first interconnect located between the semiconductor part and the second electrode, a third electrode located in the semiconductor part and separated from the semiconductor part, a fourth electrode located lower than the third electrode in the semiconductor part, a first plug connecting the second electrode to the fourth electrode, and a second plug. The third electrode includes a ring portion, and an extension portion extending from the ring portion into an interior of the ring portion. The fourth electrode is located in the interior of the ring portion in a plane perpendicular to a vertical direction. The fourth electrode is separated from the semiconductor part. The second plug connects the first interconnect to the extension portion.

Abstract: A wireless communication system includes: a base station that transmits a first signal including information indicating whether the control information is able to be transmitted using the channel assigned to the transmission of the data; and a terminal that receives the first signal. In a case that the timing of transmitting the data and the timing of transmitting the control information overlap with each other, the terminal transmits, when the information in the first signal indicates that the control information is not able to be transmitted using the channel, the control information to the base station using a resource other than the channel, and transmits, when the information in the first signal indicates that the control information is able to be transmitted using the channel, the control information to the base station using the channel.

Abstract: A base station device includes: a processor that executes a process including generating a first data channel, generating a control channel that includes allocation information on the first data channel, group identifying information for identifying a group of data channel and control information that instructs to collectively feed back an acknowledgement related to the first data channel together with an acknowledgement related to a second data channel that belongs to a same group as the first data channel and that is transmitted after the first data channel, and judging whether a frequency band for which a license is not needed to use in wireless communication is being used by another device; and a transmitter that transmits, when it is judged that the frequency band is not being used, the first data channel and the control channel by using the frequency band.

Abstract: A terminal device includes a processor and a memory connected to the processor, wherein the processor executes a process including: receiving a resource specifying signal that specifies a random access resource used to transmit a preamble for random access; selecting one preamble from a plurality of preamble candidates previously acquired; and transmitting the selected preamble by using a random access resource arranged in timing based on a reception timing of the resource specifying signal.

Abstract: A wireless communication system includes: a base station that transmits a first signal including information indicating whether the control information is able to be transmitted using the channel assigned to the transmission of the data; and a terminal that receives the first signal. In a case that the timing of transmitting the data and the timing of transmitting the control information overlap with each other, the terminal transmits, when the information in the first signal indicates that the control information is not able to be transmitted using the channel, the control information to the base station using a resource other than the channel, and transmits, when the information in the first signal indicates that the control information is able to be transmitted using the channel, the control information to the base station using the channel.

Abstract: A base station that switches between uplink periods and downlink periods in a time division manner and performs communication, the base station includes a memory; processor circuitry coupled to the memory, wherein the processor circuitry is configured to: notify of allocation information indicating a combination of resources for time division duplex (TDD) uplink (UL) or downlink (DL) configuration at a predetermined interval; and generate control information indicating cancelation of transmission of a downlink signal, wherein the canceled transmission is configured to be performed by using one of the resources designated by the allocation information, and wherein the processor circuitry is further configured to transmit the generated control information.

Abstract: A base station device that allocates wireless resources to a terminal device and performs wireless communication with the terminal device using the allocated wireless resources, the base station device includes, deciding controller that decides, out of a plurality of retransmission patterns, a retransmission pattern for performing retransmission of data to the terminal device, in accordance with a communication state of wireless communication, and a transmitter that performs initial-time transmission processing of transmitting a control signal for wireless resource allocation control, and a data signal for data transmission including data to be transmitted to the terminal device, including retransmission pattern information relating to the retransmission pattern that has been decided, and retransmission processing of retransmitting the data signal including data to be transmitted to the terminal device, in accordance with the retransmission pattern that has been decided.

Abstract: A base station that switches between uplink periods and downlink periods in a time division manner and performs communication, the base station includes a memory; processor circuitry coupled to the memory, wherein the processor circuitry is configured to: notify of allocation information indicating a combination of resources for time division duplex (TDD) uplink (UL) or downlink (DL) configuration at a predetermined interval; and generate control information indicating cancelation of transmission of a downlink signal, wherein the canceled transmission is configured to be performed by using one of the resources designated by the allocation information, and wherein the processor circuitry is further configured to transmit the generated control information.

Abstract: A base station that performs wireless communication with a terminal using a first frequency band which does not need the license to use for the wireless communication, the base station includes: a controller configured to generate a request signal for requesting data transmission of the terminal in the first frequency band and specifying a first transmission timing of the terminal; and a transmitter configured to transmit to the terminal the request signal, wherein, the request signal includes information used for specifying a second transmission timing, which is a next transmission timing when the terminal does not perform data transmission at the first transmission timing and is specified by an offset from a reference timing.

Abstract: A base station device that allocates wireless resources to a terminal device and performs wireless communication with the terminal device using the allocated wireless resources, the base station device includes, deciding controller that decides, out of a plurality of retransmission patterns, a retransmission pattern for performing retransmission of data to the terminal device, in accordance with a communication state of wireless communication, and a transmitter that performs initial-time transmission processing of transmitting a control signal for wireless resource allocation control, and a data signal for data transmission including data to be transmitted to the terminal device, including retransmission pattern information relating to the retransmission pattern that has been decided, and retransmission processing of retransmitting the data signal including data to be transmitted to the terminal device, in accordance with the retransmission pattern that has been decided.

Abstract: An uplink transmission method and apparatus. The method includes: receiving by a terminal equipment indication information, wherein the indication information does not include an indication field used for indicating RB set, the indication information scheduling uplink transmission on an uplink bandwidth part including at least two resource block sets; and transmitting the uplink transmission on at least one predefined or preconfigured resource block set.

Abstract: An uplink transmission method and apparatus. The method includes: calculating a length of cyclic prefix extension according to a length of symbols of a number of a predetermined value preceding a first symbol of uplink transmission, or calculating a length of cyclic prefix extension according to a predetermined value and a predefined symbol length, by a terminal equipment; and transmitting the cyclic prefix extension and the uplink transmission.

Abstract: An apparatus for transmitting uplink transmission, configured in a terminal equipment, includes a receiver configured to receive second indication information, the second indication information being used to indicate a duration of a CP extension corresponding to a second uplink transmission, and processor circuitry configured to transmit the second uplink transmission without transmitting the CP extension.

Abstract: Methods and apparatus for transmitting a signal and a communication system. The apparatus includes a receiver configured to: receive a first synchronization signal/physical broadcast channel block (SS/PBCH block, SSB), the first synchronization signal/physical broadcast channel block being not located on a first synchronization raster; and receive physical downlink control channel (PDCCH), the physical downlink control channel (PDCCH) being used to schedule a physical downlink shared channel (PDSCH) for carrying remaining minimum system information/system information block 1 (RMSI/SIB1).

Abstract: A terminal device includes: a determination unit that determines whether an unlicensed band is being used by another device; and a processor that generates a transmission signal. The processor executes a process including: generating first and second information to which a first and a second resources in the unlicensed band, respectively, are allocated; and in a case where the first resource temporally overlaps with the second resource, generating, when a first determination result related to one of the resources starting first indicates that the unlicensed band is not being used, the transmission signal by assigning the first information to the one resource, and generating, when the first determination result indicates that the unlicensed band is being used, the transmission signal by assigning the first information to the other of the resources subsequently starting, in accordance with a second determination result related to the other resource.

Abstract: A terminal capable of performing a random access procedure, the terminal includes a receiver, a controller, and a transmitter. The receiver configured to receive a first signal of the random access procedure from a base station. The controller configured to control a transmission timing at which a second signal of the random access procedure is transmitted according to configuration information associated with a transmission timing. The transmitter configured to transmit, to the base station, the second signal in an unlicensed band at the transmission timing.

Abstract: A resource determination method, a resource scheduling method and apparatuses thereof. The method includes: receiving, by a terminal equipment, indication information transmitted by a network device, and receiving resource scheduling information transmitted by the network device, the indication information being used to determine whether a spacing bandwidth resource belongs to a scheduling bandwidth resource; and determining a size of a transport block according to the indication information and the resource scheduling information.

Abstract: An SSB-based measurement method and apparatus, in which a first measurement result of a first cell is obtained according to at least one of QCL relationships between SSBs to which the first cell corresponds, an SSB transmission restriction to which the first cell corresponds and a detection result of SSBs of the first cell, and measurement information of the first cell is generated according to the first measurement result of the first cell and reported.

Abstract: A wireless communications system configured to use a predetermined bandwidth of an unlicensed bandwidth, the wireless communications system including: a base station configured to transmit a control signal that includes information indicating an offset time from a reference timing; and a terminal connected to the base station and configured to: receive the control signal from the base station; perform a process of detecting a wireless signal of the predetermined bandwidth in a standard period; and start transmission from a transmission start timing according to the offset time after no wireless signal of the predetermined bandwidth is detected in the process, the transmission start timing being a timing at which the terminal is allowed to start transmission of wireless signals.