Fujitsu Corporation

Ntt Docomo, Inc.

Tsuyoshi Shimomura

Dai Kimura

Yoshinori Tanaka

Hongyang Chen

Tetsuya Yano

Jianming Wu

Qinyan Jiang

Hiroyuki Seki

Yoshihiro Kawasaki

Kazuhisa Obuchi

Meiyi Jia

Guoyu Zhang

Huiting Cheng

Lei Zhang

Hiroyuki Ishii

Yoshihisa Kishiyama

Xin Wang

Kenichi Higuchi

Yoshiaki Ohta

Takayoshi Ode

Sadayuki Abeta

Nobuhisa Aoki

Kenji Suda

Morihiko Minowa

Takaharu Kobayashi

Takato Ezaki

Teppei Oyama

Takao Nakagawa

Kazuaki Ando

Tetsuhiro Futami

Ryusuke Kiryu

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.

SSB-based measurement method and apparatus

A mobile station is a mobile station configured to transmit data to a base station by performing priority control, and includes a memory and a processor coupled to the memory and configured to be capable of transmitting a plurality of pieces of data having different requirements corresponding to a plurality of channel groups, and be capable of, when performing the priority control, applying a radio resource specified by the base station to a channel group specified by the base station out of the channel groups and controlling transmission of the data.

Mobile station, base station, communication system, and communication method performed in the communication system performing priority control

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.

Uplink transmission method and apparatus

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.

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).

Method and apparatus for transmitting signal and communication system

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.

Resource determination method, resource scheduling method and apparatuses thereof

A communication apparatus that supports sidelink communication, the communication apparatus includes, a scheduler configured to select one resource pool from a plurality of resource pools based on a selection criterion set for an individual one of the plurality of resource pools and information regarding sidelink communication, and a transmission unit configured to transmit control information and data by using a resource included in the resource pool selected by the scheduler, wherein the information regarding sidelink communication is a QoS (Quality of Service) condition requested when the data is transmitted via sidelink communication.

Communication apparatus, base station apparatus, and communication system

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.

Wireless communication system, base station, terminal, and method of communication

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.

Terminal device, base station device, and wireless communication system

A base station apparatus that executes a random-access procedure, the base station apparatus includes, a notifier that notifies a terminal apparatus of a transmission permission of a scheduling request by a shared wireless resource, which is part or all of wireless resources used for the random-access procedure; and a receiver that receives a scheduling request transmitted from the terminal apparatus by the shared wireless resource.

Base station apparatus, terminal apparatus, and communication system

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.

Base station device, terminal device, wireless communication system, and wireless communication method

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.

Transmission device, reception device, wireless communication system, and communication method

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.

Base station device, terminal device, and wireless communication system

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.

Terminal device, base station device, wireless communication system, and wireless communication method for allocating random access resources in an unlicensed band

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Kawasaki, Japan

Tsuyoshi Shimomura