Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method and an apparatus of transmitting a HARQ-ACK/NACK (Hybrid Automatic Repeat Request-Acknowledgment/Negative Acknowledgment) and a downlink transmission method and apparatus are provided.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention provides a method and device for vehicle to everything (V2X) communications.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a method for allocating Physical Uplink Control Channel (PUCCH) resources, including: a User Equipment (UE) detects a Physical Downlink Control Channel (PDCCH) scheduling a Pyhsical Downlink Shared Channel (PDSCH) in a configured control resource set; the UE analyzes the detected PDCCH, correspondingly receives PDSCH, and determines PUCCH resources feeding back Hybrid Automatic Repeat request-ACK (HARQ-ACK) information; the UE transmits the HARQ-ACK information by using the determined PUCCH resources. By adopting the method in the present disclosure, a method for allocating PUCCH resources is provided. An upper-limit resource utilization is improved.

Abstract: The present disclosure provides several methods, user equipment (UEs) and base stations for transmitting uplink signals. After receiving uplink synchronization command information, the UE may transmit an uplink signal on at least one idle unlicensed cell. Besides, the UE may try to transmit the uplink signal on multiple uplink signal resources within an uplink signal transmission window. By using the present disclosure, transmission probability of uplink signals may be improved, and time delay of uplink synchronization may be shortened.

Abstract: The present application provides a power control method in a V2X communication, comprising the following steps of: acquiring, by a UE, power control parameters of a Physical V2X Shared Channel (PVSCH) or a Physical V2X Control Channel (PVCCH) in a V2X communication, the power control parameters comprising a second basic open-loop power, the second basic open-loop power reflecting an interrelationship between different V2X UEs; and, determining, by the UE, a transmission power of the PVSCH or the PVCCH according to the acquired power control parameters. With the present application, the performance of the V2X communication can be improved, and the power consumption of a V2X terminal can be reduced.

Abstract: Disclosed is a method for controlling an uplink (UL) power in a multi-subframe scheduling system including a user equipment (UE) receiving a multi-subframe UL scheduling instruction or physical downlink control channel (PDCCH) data of a downlink control information (DCI) format 3/3 A of the UE, in a DL subframe where the multi-subframe UL scheduling instruction is transmitted, and the UE determining a transmitting power of the PUSCH of each UL subframe scheduled by the multi-subframe UL scheduling instruction, based on a power controlling command value, and transmitting corresponding PUSCH data based on the calculated transmitting power.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a power allocating method. A User Equipment (UE) receives power control indication information from a control node, obtains a power control mode, and/or, uplink transmission power configuration information. The UE allocates power for each uplink carrier, based on the power control mode, and/or, the uplink transmission power configuration information. By applying the present disclosure, power waste generated in the following scene may be reduced. A scheduled uplink signal cannot be transmitted in a corresponding carrier due to a busy channel. Subsequently, uplink scheduling efficiency of the UE may be improved, and the whole network efficiency may also be enhanced.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure may be applied to intelligent services based on the 5G communication technology and an Internet of Things (IoT)-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application provides a data transmission method. A first device senses scheduling assignment (SA) and received power of another device, and/or senses a total received energy of all of subframes/sub-bands of the first device. The first device selects or re-selects resources according to the sensing result. The first device transmits data using the resources. The present application also provides a data transmission device.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method for controlling congestion, including: a User Equipment (UE) measures a Channel Busy Ratio (CBR), and controls congestion based on the CBR and a priority; the UE transmits Scheduling Assignment (SA) indicating data channel resources, and correspondingly transmits data.

Abstract: A first device senses scheduling assignment (SA) and received power of a second device, and a total received energy of each subband. The first device determines a reference value of received power of the second device and a reference value of total received energy, based on a sensing result of the second device. The first device selects a resource, based on the reference value of received power and reference value of total received energy, the first device transmits data. By adopting the method of the present disclosure, decoding performance of SA is improved, and accuracy for measuring received power of the SA is also enhanced. Subsequently, on the basis of SA and received power, performances for selecting/re-selecting channel resources are improved.

Abstract: An apparatus and method for feeding back hybrid automatic repeat request-acknowledgement (HARQ-ACK) information are provided. The apparatus and method include user equipment (UE) that first receives a downlink grant (DL-GRANT) which schedules downlink HARQ transmission in a time-frequency bundling window corresponding to an uplink subframe used for feeding back HARQ-ACK, obtains a DL downlink assignment index (DL DAI) in the DL-GRANT, and determines a mapping value of each DL DAI. Then, according to the mapping value of the corresponding DL DAI, the HARQ-ACK bit of each HARQ feedback unit is mapped to a corresponding bit of a feedback bit sequence. According to the method and apparatus provided by the present disclosure, useless HARQ-ACK bits may be effectively removed, and efficiency for feeding back HARQ-ACK may be increased. As such, a downlink peak rate of a UE is ensured.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method and a device of power control for a Uu uplink transmission and a V2X transmission. Specifically, the present disclosure provides a method for determining the transmission power based on the circumstance of synchronous/asynchronous carriers, a minimum time delay of preparing the transmission power of the V2X and Uu uplink transmission, and an actual time delay of V2X from a resource reselection to a transmission.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a power allocating method. A User Equipment (UE) receives power control indication information from a control node, obtains a power control mode, and/or, uplink transmission power configuration information. The UE allocates power for each uplink carrier, based on the power control mode, and/or, the uplink transmission power configuration information. By applying the present disclosure, power waste generated in the following scene may be reduced. A scheduled uplink signal cannot be transmitted in a corresponding carrier due to a busy channel. Subsequently, uplink scheduling efficiency of the UE may be improved, and the whole network efficiency may also be enhanced.

Abstract: The present disclosure provides several methods, user equipment (UEs) and base stations for transmitting uplink signals. After receiving uplink synchronization command information, the UE may transmit an uplink signal on at least one idle unlicensed cell. Besides, the UE may try to transmit the uplink signal on multiple uplink signal resources within an uplink signal transmission window. By using the present disclosure, transmission probability of uplink signals may be improved, and time delay of uplink synchronization may be shortened.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a method for transmitting uplink signals, a user equipment (UE), and a base station. The UE determines an LBT type and a starting position of signal transmission according to scheduling information and LBT type of a previous subframe, a current subframe, and a subsequent subframe and whether there is a gap between these subframes.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Embodiments of the present disclosure provides method for transmitting signals on an Unlicensed Frequency Band (UFB), comprising: performing, by a transmitting node, a first type of Listen Before Talk (LBT) on a direction i; transmitting, by the transmitting node, signals on a direction j after passing the first type of LBT, wherein the direction i is omnidirectional, or one or multiple beam directions corresponding to the direction j.

Abstract: The present disclosure provides a data transmitting method. The method includes that a device detects SA, generates a DMRS sequence and a scrambling code of a data channel for the SA correctly decoded; and performs processing for the data channel scheduled by the SA correctly decoded according to the DMRS sequence and the scrambling code. According to the method of the present disclosure, MDRS sequence randomization and scrambling code randomization of the data channel can be better supported, so as to optimize transmission performance.

Abstract: The present disclosure provides a hybrid duplex communication method and apparatus. Configuration information is obtained. The configuration information includes locations of special sub-frames on the first carrier, and a transmission direction of each sub-frame on the second carrier. Sounding Reference Symbol (SRS) is sent on a special sub-frame. when all sub-frames on the second carrier are UL sub-frames, the UE may communicate with the BS on the first carrier and the second carrier according to the FDD mode; when the second carrier is used for UL and DL transmission in time division multiplexing mode, the UE may communicate with the BS on DL resources of the first carrier and UL resources of the second carrier according to the FDD mode, and/or, the UE may communicate with the BS on DL resources of the second carrier and UL resources of the second carrier according to the TDD mode.

Abstract: The present application discloses a method for data transmission in a radio cell of a mobile terminal. The radio cell includes an auxiliary carrier in a low frequency band and at least one master carrier in a high frequency band, the method including: the mobile terminal achieving downlink synchronization with the radio cell through the auxiliary carrier in the low frequency band, and after achieving the downlink synchronization, obtaining configuration information of the radio cell, and transmitting data by using the master carrier and/or the auxiliary carrier according to the configuration information. The present application also provides a mobile terminal. By using the present application, radio cell coverage and transmission performance may be improved.