Abstract: A method and apparatus for reserving sidelink resources. The method includes: receiving by a first terminal equipment first indication information indicating a second time-frequency resource transmitted by a second terminal equipment, wherein the second time-frequency resource at least partially overlaps a reserved or allocated first time-frequency resource of the first terminal equipment; and transmitting by the first terminal equipment to a network device second indication information indicating that the first time-frequency resource is at least partially pre-empted.

Abstract: A power allocation method and apparatus. The method includes: a terminal equipment determines whether sidelink transmission has precedence over uplink transmission, the sidelink transmission including transmission of sidelink information carried by a second uplink physical channel and/or transmission of a sidelink physical channel/signal, the uplink transmission including transmission of uplink information carried by the second uplink physical channel and/or transmission of a first uplink physical channel/signal; and allocates power preferentially for the second uplink physical channel and/or the sidelink physical channel/signal when the sidelink transmission has precedence over the uplink transmission.

Abstract: A resource configuration method, resource determination method, apparatuses thereof and communication system. The resource configuration apparatus comprises: a first configuring unit configured to configure one or more additional resource sets corresponding to each control resource set or each group of control resource sets. Hence, payload of downlink control information may be reduced, and currently existed problems may be solved.

Abstract: A sidelink resource selection method and apparatus. The method includes: for a candidate resource set corresponding to a physical sidelink feedback channel, adjusting a priority of the candidate resource set by a terminal equipment at least according to a source terminal equipment and/or a destination terminal equipment of a reserved resource contained in the candidate resource set; and performing resource selection by the terminal equipment according to the priority to transmit sidelink data.

Abstract: A radio link monitoring method in a sidelink, applicable to a terminal equipment. The method includes: reporting by a physical layer to a higher layer a state of at least one sidelink and sidelink information to which the state corresponds, and performing by the higher layer operations related to radio link monitoring or a radio link failure according to the sidelink information.

Abstract: A resource indication method and apparatus and a communication system.

Abstract: A terminal, including: a memory that stores a plurality of instructions; and a processor coupled to the memory and configured to execute the instructions to: multiplex logical channel data of a logical channel group (LCG); and a transmitter configured to transmit a buffer status report (BSR) of a variable length to a network side, wherein the BSR of a variable length contains a first buffer size of the LCG after the logical channel data of the LCG are multiplexed, and the LCG has a second buffer size being greater than zero before the logical channel data of the LCG are multiplexed.

Abstract: Methods and apparatuses for transmitting and receiving sidelink data. The method includes: receiving by a second terminal equipment sidelink control information and sidelink data transmitted by a first terminal equipment; at least according to one or more frequency-domain resources of the sidelink data indicated in the sidelink control information, determining a resource block in which one of at least two sidelink feedback channels for the sidelink data is located; and transmitting feedback information to the first terminal equipment by using the sidelink feedback channel.

Abstract: A method and apparatus for identifying a user equipment capability in sidelink transmission. A UE capability of a destination UE is identified by using a specific UE identity, and a transmitting end UE is facilitated to provide configuration not exceeding a UE capability according to the UE capability of a destination UE and maintain information on the destination UE, thereby providing a mechanism for identifying a UE capability.

Abstract: Embodiments of this disclosure provide sidelink resource multiplexing and indication methods and apparatuses thereof. The method includes: receiving by a second device length information indicating a length of a first part in a slot transmitted by a terminal equipment or a network device; and performing transmission and/or reception of sidelink information by the second device with a first device according to the length information. Hence, the second device is able to process the first part according to the length information, thereby improving performance of sidelink transmission.

Abstract: A resource indication method and apparatus and communication system. The resource indication method includes: receiving by a terminal equipment third indication information used for dynamically indicating time domain resources in a resource pool transmitted by a network device, and/or receiving by a terminal equipment first indication information used for indicating first time domain resources belonging to a resource pool and transmitted by a network device. By indicating by the indication information which time-domain resources in the semi-persistently configured and/or dynamically configured time-domain resources may be contained in the resource pool, the V2X terminal equipment may perform data transceiving by using the resources in the resource pool, thereby supporting V2X communication in a future communication system.

Abstract: A transmission apparatus and method of feedback information. A user equipment receives or generates sidelink feedback information and transmit the sidelink feedback information to a network device, thereby providing a feedback mechanism of sidelink transmission, and improving reliability of data transmission of a sidelink.

Abstract: Methods and apparatuses for transmitting and receiving sidelink information. The method includes: determining a priority/priorities of second data information and/or feedback information by a second device, allocating power for the second data information and/or the feedback information according to the priority/priorities; and/or scrambling and/or indicating the second data information and/or the feedback information by the second device by using an identifier. Hence, supporting multiple unicast sessions or groupcast sessions by the same device may be achieved.

Abstract: Methods and apparatuses for transmitting and configuring sidelink data. The method includes: receiving by a terminal equipment control information including a sidelink grant and transmitted by a network device, the control information further indicating at least one piece of destination information to which the sidelink grant is directed; determining at least one destination and/or logical channel according to the destination information; and transmitting sidelink data of the at least one destination and/or logical channel according to the sidelink grant. Thus, the network device is enabled to schedule different resources for different destination terminal equipments.

Abstract: Methods for transmitting and receiving a reference signal and apparatuses thereof. The method includes: a first device determines a sidelink reference signal used for obtaining channel state information, wherein the sidelink reference signal is carried in a first part of symbols of a time interval; and transmits the sidelink reference signal by the first device to a second device.

Abstract: An apparatus and method for transmitting data of vehicle communication (V2X) services and a communication system. The apparatus includes: a first generating unit configured in a media access control (MAC) layer of the terminal equipment and configured to generate at least one protocol data unit (PDU) in a mode identical to a transmission mode to which a service data unit (SDU) contained in a PDU corresponds; and a first transmitting unit configured in the MAC layer and configured to transmit the PDU to a physical layer of the terminal equipment, and notify the transmission mode to which the PDU corresponds to the physical layer. This disclosure facilitates the physical layer to transmit data in a corresponding transmission mode. The terminal equipment may determine the transmission mode or set the transmission mode according to the indication information, and layers of the terminal equipment perform corresponding processing.

Abstract: A method and an apparatus for transmitting uplink information, the method including configuring, by a base station, a flexible subframe for a user equipment (UE), where the flexible subframe is a subframe in which the base station is configured to receive or transmit data according to a time division duplex (TDD) uplink-downlink subframe configuration of the subframe, and sending, by the base station, resource configuration indication information and subframe configuration indication information to the UE, where the resource configuration indication information indicates the flexible subframe and a subframe direction to which the flexible subframe currently needs to be applied, where the subframe direction is a direction of transmission with respect to the base station, and where the subframe configuration indication information instructs the UE to transmit uplink information according to the subframe configuration indication information.

Abstract: Methods and apparatuses for transmitting and receiving downlink control information and a communication system. The apparatus for transmitting downlink control information (DCI) includes: a first transmitter configured to transmit to a terminal equipment first DCI indicating an interrupted first time-frequency resource used for transmitting uplink data, the first DCI at least comprising a first field indicating a position of the first time-frequency resource.

Abstract: A communication method and apparatus and a communication system, the communication apparatus being provided in a terminal equipment, and the communication apparatus comprising: processing circuitry configured to acquire or select communication resources determined based on a mapping between vehicle-to-everything (V2X) services and communication resource parameters; and communication circuitry configured to transmit target V2X services by using the communication resources. The communication resources may be determined according to the mapping between vehicle-to-everything (V2X) services and communication resource parameters. Certain embodiments making the communication resources meet requirements of the V2X services.

Abstract: Methods and apparatuses for information transmission and reception are provided. The method includes: determining a demodulation reference signal in a time-domain resource by a transmitting device at least according to the number of a part of symbols in the time-domain resource; wherein the number of symbols contained in the time-domain resource is less than or equal to the number of symbols contained in a slot or a subframe; and transmitting data information and the demodulation reference signal by the transmitting device to a receiving device by at least using the time-domain resource.