Abstract: A satellite communication system and a method for managing radio resource of a non-terrestrial network are provided. The method includes: transmitting, by a first satellite, a first resource scheduling assignment when leaving a service area of the non-terrestrial network; receiving, by a second satellite, a second resource scheduling assignment corresponding to the first scheduling assignment when entering the service area; and accessing, by the second satellite, the radio resource according to the second resource scheduling assignment.

Abstract: A method of sidelink communications by a plurality of user equipment (UE) without the control of a base station in a wireless communication system is disclosed. In one embodiment, the UE being a scheduler end is configured to allocate the resources for initial/repeated transmissions and ACK/NACK messages, and also transmit information regarding the allocated resources to both the UEs being a transmitter end and a receiver end. In one embodiment, retransmission is performed when none of the scheduler and transmitter ends has received the ACK message sent by the receiver end, so as to minimize redundant retransmission in consideration of transmission reliability. In one embodiment, retransmission is performed when at least one of the scheduler and transmitters end has received the NACK message sent by the receiver end before the retransmission timer has reached to zero, so as to minimize transmission latency.

Abstract: A method of sidelink communications by a plurality of user equipment (UE) without the control of a base station in a wireless communication system is disclosed. In one embodiment, the UE being a scheduler end is configured to allocate the resources for initial/repeated transmissions and ACK/NACK messages, and also transmit information regarding the allocated resources to both the UEs being a transmitter end and a receiver end. In one embodiment, retransmission is performed when none of the scheduler and transmitter ends has received the ACK message sent by the receiver end, so as to minimize redundant retransmission in consideration of transmission reliability. In one embodiment, retransmission is performed when at least one of the scheduler and transmitters end has received the NACK message sent by the receiver end before the retransmission timer has reached to zero, so as to minimize transmission latency.

Abstract: This application relates to the field of communications technologies, and in particular, to a communication method in a directional communications system, and a receiver. The method of this application includes: receiving a request message; and performing directional channel listening in a direction facing a transmitter, and sending a response message if it is learned through the listening that a channel is available, or skipping sending the response message if otherwise. According to the method of this application, after receiving the request message, the receiver performs directional channel listening in the direction facing the transmitter.

Abstract: A method for performing a sidelink transmission and a transmitting user equipment (UE) and a receiving UE using the same are provided. The method includes: detecting a resource pool for reserving a feedback resource, wherein the feedback resource is reserved according to a first occupied feedback resource and a second occupied feedback resource; transmitting a first signaling to the receiving UE; and receiving, from the receiving UE, a second signaling corresponding to the first signaling, wherein the second signaling is carried by the feedback resource.

Abstract: The disclosure is directed to a method of configuring a resource pool for SL communication by a receiver UE, by a transmitter UE, by a base station, a user equipment using the same method, and a base station using the same method. In an aspect, the disclosure is directed to a method of configuring a resource pool for SL communication by a receiver UE. The method would include not limited to: receiving an activation grant to perform SL communication; determining to modify the resource pool by changing from the first resource to a second resource of the resource pool in response to detecting a triggering condition; transmitting a first modification signal to modify from first resource to the second resource; receiving a modification grant to modify from the first resource to the second resource; and receiving a deactivation grant to terminate the SL communication.

Abstract: A method of side-link transmission for ultra-reliable and low latency communication (URLLC), for a first user equipment (UE) of a wireless communication system is disclosed. The method comprises receiving a radio resource control, RRC, signaling for a first resource configuration, from a second UE of the side-link communication, wherein the second UE receives a grant-free uplink resource reserved for a grant-free uplink transmission, from a base station the wireless communication system, and transmitting a first RRC signal for a second resource configuration, to the second UE when the first resource configuration cannot support requirements of URLLC transmission.

Abstract: A user equipment (UE) and a base station (BS) are provided. The UE receives an uplink transmission configuration message indicating a pre-configured radio resource pool and an uplink control configuration message indicating an uplink control radio resource in the pre-configured radio resource pool from the BS. The UE transmits an uplink control message on the uplink control radio resource and transmits an uplink data signal on an uplink data radio resource in the pre-configured radio resource pool so that the BS receives the uplink data signal according to the uplink control message.

Abstract: This application relates to the field of communications technologies, and in particular, to a communication method in a directional communications system, and a receiver. The method of this application includes: receiving a request message; and performing directional channel listening in a direction facing a transmitter, and sending a response message if it is learned through the listening that a channel is available, or skipping sending the response message if otherwise. According to the method of this application, after receiving the request message, the receiver performs directional channel listening in the direction facing the transmitter.

Abstract: A base station and a user equipment are provided. The base station performs a multi-user non-orthogonal uplink multiplexing transmission configuration procedure to generate an uplink multiplexing transmission configuration message based on a radio resource utilization efficiency. The uplink multiplexing transmission configuration message carries a power domain uplink multiplexing transmission parameter and a non-orthogonal uplink multiplexing transmission parameter. The base station transmits the uplink multiplexing transmission configuration message to the user equipment to make the user equipment transmit an uplink data signal to the base station according to the uplink multiplexing transmission configuration message.

Abstract: A base station and a user equipment are provided. The base station performs a multi-user non-orthogonal uplink multiplexing transmission configuration procedure to generate an uplink multiplexing transmission configuration message based on a radio resource utilization efficiency. The uplink multiplexing transmission configuration message carries a power domain uplink multiplexing transmission parameter and a non-orthogonal uplink multiplexing transmission parameter. The base station transmits the uplink multiplexing transmission configuration message to the user equipment to make the user equipment transmit an uplink data signal to the base station according to the uplink multiplexing transmission configuration message.

Abstract: A method, a transmitting node and a receiving node for feedback control of sidelink communication are provided. In the method, the base station generates a target information for transmitting feedback information with respect to data transmissions between a transmitting node and a receiving node; and at least one of the transmitting node and the receiving node receives the target information transmitted by the base station, or receives, from another node, target information transmitted by the base station to the another node; and in response to the transmitting node transmitting the data to the receiving node, the receiving node transmits the feedback information according to the target information, and the transmitting node obtains the feedback information according to the target information.

Abstract: A user equipment (UE) and a base station (BS) are provided. The UE receives an uplink transmission configuration message indicating a pre-configured radio resource pool and an uplink control configuration message indicating an uplink control radio resource in the pre-configured radio resource pool from the BS. The UE transmits an uplink control message on the uplink control radio resource and transmits an uplink data signal on an uplink data radio resource in the pre-configured radio resource pool so that the BS receives the uplink data signal according to the uplink control message.

Abstract: A base station determines at least one access class barring parameter based on load balance of a plurality of random access channels, and broadcasts the at least one access class barring parameter. A communication terminal receives a plurality of access class barring parameters from at least one base station, and then determines a random access channel candidate from the random access channels according to the access class barring parameters and performs a random access procedure on the random access channel candidate. Such an access class barring method can efficiently improve traffic congestions of a plurality of random access channels.

Abstract: The present invention relates to a resource allocation apparatus, resource allocation method, and non-transitory computer readable medium thereof. The resource allocation apparatus adapted for a network comprising a femto base station (BS) which communicates with the femto BS and includes a storage, a transceiver and a processor connected to the storage and the transceiver. The storage stores a random function, reuse information and fractional frequency reuse (FFR) information which records an original cell ID/frequency corresponding relation of an unoccupied partition of the network.

Abstract: The present invention relates to a subscriber station, resource allocation method, and non-transitory computer readable medium thereof. The subscriber station using in a femtocell network comprises a receiving interface and a processor. The receiving interface receives a frame of the femtocell network. The processor, electrically connected to the receiving interface, blindly decodes a first logical frequency resource unit (LRU) of a frequency partition of the frame to obtain an allocation message, determines the allocation message is relative to the subscriber station, and proceeds a data transmission in the femtocell network according to the allocation message.

Abstract: A user direct mode communication apparatus and a time synchronization method thereof are provided. The user direct mode communication apparatus receives a synchronization signal from at least one network apparatus. The synchronization signal includes time information and apparatus information. The user direct mode communication apparatus determines an apparatus weight of the at least one network apparatus according to the apparatus information, and calculates a network synchronization time according to the apparatus weight and the time information.

Abstract: A method of handling resource arrangement for a first base station of a wireless communication system is disclosed. The method comprises obtaining channel information of a channel corresponding to a resource block from a measurement, a relay node of the wireless communication system or a second base station of the wireless communication system, wherein the resource block is identified by a time period and a frequency bandwidth; and arranging the resource block to a mobile device in the wireless communication system according to the channel information of the channel.

Abstract: The present invention relates to a resource allocation apparatus, subscriber station, resource allocation method, and non-transitory computer readable medium thereof. The resource allocation apparatus may know the unoccupied partition of the wireless network resource and allocate the unoccupied partition to the SS of the femtocell network. Thereby, the SS of the femtocell network will not occupy the same network resource of the macro BS or other femto SS, and interference of between femtocell and macrocell or other femtocell is reduced effectively.

Abstract: A femtocell Base Station (femto-BS), a network resource allocation method, and a non-transitory tangible machine-readable medium thereof are provided. There are a plurality of available network resource units. The femto-BS determines an expected value that is related to the available network resource units being used by the femto-BS and its neighboring femto-BSs without having interferences. The expected value is related to a number of the available network resource units and a number of the neighboring femto-BSs. Based on the expected value, the femto-BS calculates a plurality of strategy probability values that are related to different numbers of the available network resource units used by the femto-BS. The femto-BS calculates an assigned number according to the strategy probability values. Among the available network resource units, the femto-BS can use the assigned number of them.