Abstract: A method of a wireless communication system for extended reality (XR) applications is disclosed. The method includes: triggering a service reliability procedure with activating an XR-specific handling procedure in response to a first network condition; and determining whether to perform a protocol layer quality of service (QoS) handling mechanism with XR-specific handling consideration, a physical layer QoS handling mechanism with XR-specific handling consideration, or a physical layer QoS handling mechanism without XR-specific handling consideration to enhance QoS between a network and a mobile terminal depending on a QoS requirement for XR data transmissions.

Abstract: A method of a wireless communication system is disclosed. The method includes: triggering a service reliability procedure in response to a first network condition; and determining whether to perform a protocol layer quality of service (QoS) handling mechanism or a physical layer QoS handling mechanism to enhance QoS between a network and a mobile terminal depending on a QoS requirement.

Abstract: An LPWAN system and positioning method thereof are provided. An LPWAN system includes an application server and an end device. The application server receives a positioning request from the end device and transmits a positioning initial information to a plurality of network devices. Signal measurements are made between the end device and the network devices for deciding a plurality of path loss information. The application server determines an end position of the end device according to the path loss information and a plurality of network positions of the network devices.

Abstract: The invention relates to a user equipment of device-to-device communications and a resource selection method thereof. The user equipment includes a resource selection device and a transceiver device. The resource selection device is configured to create a state machine model, which includes an in-coverage state and an out-of-coverage state corresponding to a base station. The resource selection device is also configured to select a corresponding device-to-device communication resource in response to a current state of the user equipment during transferring of the user equipment from the in-coverage state to the out-of-coverage state or from the out-of-coverage state to the in-coverage state. The transceiver device is configured to perform a device-to-device communication with another user equipment according to the corresponding device-to-device communication resource. The resource selection method includes the steps corresponding to the operations of the user equipment.

Abstract: A direct communication network system and a signal synchronization method thereof are provided. The direct communication network system includes a first direct communication apparatus and a second direct communication apparatus. The first direct communication apparatus synchronizes with a base station within communication coverage of the base station. The second direct communication apparatus synchronizes with the first direct communication apparatus outside the communication coverage of the base station according to at least one first synchronization signal of the first direct communication apparatus. The first direct communication apparatus determines an abnormal synchronization status with the base station, and adjusts a transmitting status of the at least one first synchronization signal.

Abstract: Embodiments of the present invention relate to a communication system in support of multi-connectivity and a connecting method thereof. In the embodiments, the communication system includes a core network, a master base station, a secondary base station, and a user equipment, wherein the master base station and the secondary base station belong to different wireless communication systems. The secondary base station includes a secondary base station centralized unit and at least one secondary base station distributed unit. The master base station coordinates, with the secondary base station centralized unit, how the user equipment connects with the at least one secondary base station distributed unit, according to a measurement report provided by the user equipment. Therefore, the user equipment connects with not only the master base station but also the at least one secondary base station distributed unit at the same time to support multi-connectivity.

Abstract: A user equipment, a small cell and an operation method thereof are provided. The small cell includes a processor and a transceiver. The processor is configured to generate a maintaining downlink signal when the small cell is in an off-state. The maintaining downlink signal utilizes fewer radio resources compared to a normal downlink signal which is generated when the small cell is in an on-state. The transceiver is electrically connected to the processor and configured to continuously transmit the maintaining downlink signal when the small cell is in the off-state and receive an uplink signal from the user equipment. The processor further switches the small cell from the off-state to the on-state according to the uplink signal.

Abstract: A base station and a device to device (D2D) user equipment (UE), a transmission method, a report method and a resource adjustment method for a wireless communication system are provided. When the D2D UE operates as a transmitting end, it is able to determine a transmission mode according to a transmission condition (e.g., whether a radio link failure or a collision occurs when a D2D transmission is being performed, or whether the telecommunication operators of the transmitting end and the corresponding receiving end are the same). When the D2D UE operates as a receiving end, it is able to transmit a report message carrying received signal quality to the base station after receiving D2D data. Accordingly, the base station is able to adjust a D2D resource configuration according to the report message.

Abstract: A direct communication network system for resource synchronization communication is provided. The direct communication network system includes a base station and a first user equipment. The base station broadcasts a pre-authorized setting. The first user equipment receives the pre-authorized setting and listens to a first resource synchronization message broadcasted from the base station according to the pre-authorized setting. The first user equipment directly communicates with a second user equipment according to the first resource synchronization message.

Abstract: A device to device (D2D) user equipment (UE) used for a wireless communication system is provided. The D2D UE is located in a network topology including a plurality of transmitting ends and a plurality of receiving ends. The D2D UE may be a transmitting end or a receiving end. The receiving ends perform a resource scheduling procedure several times according to transmitting end sequences echoed from the transmitting ends to schedule the appropriate resources for the transmitting ends so as to prevent a transmission collision.

Abstract: A wireless communication system and a resource allocation method thereof are provided. The wireless communication system includes a base station and a plurality of user equipments. The base station or one of the user equipments is configured to transmit resource allocation information to the user equipments. The user equipments are configured to perform a device-to-device communication and/or perform a device-to-device discovery according to the resource allocation information. The resource allocation method is applied to the wireless communication system to perform the aforesaid operations.

Abstract: A wireless communication system and method including co-time co-frequency full duplex (CCFD) communications are provided. The wireless communication system includes at least one user equipment and a communication device coupled with the at least one user equipment. The at least one user equipment is configured to provide at least one CCFD) measurement report. The communication device is configured to assign one of a symmetric CCFD communication mode, an asymmetric CCFD communication mode and a non-CCFD communication mode to each of the at least one user equipment. The wireless communication method includes the steps corresponding to the operations of the wireless communication system.

Abstract: The invention relates to a user equipment of device-to-device communications and a resource selection method thereof. The user equipment includes a resource selection device and a transceiver device. The resource selection device is configured to create a state machine model, which includes an in-coverage state and an out-of-coverage state corresponding to a base station. The resource selection device is also configured to select a corresponding device-to-device communication resource in response to a current state of the user equipment during transferring of the user equipment from the in-coverage state to the out-of-coverage state or from the out-of-coverage state to the in-coverage state. The transceiver device is configured to perform a device-to-device communication with another user equipment according to the corresponding device-to-device communication resource. The resource selection method includes the steps corresponding to the operations of the user equipment.

Abstract: A direct communication network system and a signal synchronization method thereof are provided. The direct communication network system includes a first direct communication apparatus and a second direct communication apparatus. The first direct communication apparatus synchronizes with a base station within communication coverage of the base station. The second direct communication apparatus synchronizes with the first direct communication apparatus outside the communication coverage of the base station according to at least one first synchronization signal of the first direct communication apparatus. The first direct communication apparatus determines an abnormal synchronization status with the base station, and adjusts a transmitting status of the at least one first synchronization signal.

Abstract: A user equipment and a device-to-device communication selection method thereof are provided. The user equipment is configured to receive device-to-device communication information and discover device-to-device communication nodes. The user equipment is further configured to determine at least one selection procedure from a plurality of selection procedures according to the device-to-device communication information and select at least one first device-to-device communication target from the discovered device-to-device communication node(s) according to the determined selection procedure(s). The device-to-device communication selection method is for use in the user equipment to execute the aforesaid operations.

Abstract: A base station and a device to device (D2D) user equipment (UE), a transmission method, a report method and a resource adjustment method for a wireless communication system are provided. When the D2D UE operates as a transmitting end, it is able to determine a transmission mode according to a transmission condition (e.g., whether a radio link failure or a collision occurs when a D2D transmission is being performed, or whether the telecommunication operators of the transmitting end and the corresponding receiving end are the same). When the D2D UE operates as a receiving end, it is able to transmit a report message carrying received signal quality to the base station after receiving D2D data. Accordingly, the base station is able to adjust a D2D resource configuration according to the report message.

Abstract: A direct communication network system for resource synchronization communication is provided. The direct communication network system includes a base station and a first user equipment. The base station broadcasts a pre-authorized setting. The first user equipment receives the pre-authorized setting and listens to a first resource synchronization message broadcasted from the base station according to the pre-authorized setting. The first user equipment directly communicates with a second user equipment according to the first resource synchronization message.

Abstract: A device to device (D2D) user equipment (UE) used for a wireless communication system is provided. The D2D UE is located in a network topology including a plurality of transmitting ends and a plurality of receiving ends. The D2D UE may be a transmitting end or a receiving end. The receiving ends perform a resource scheduling procedure several times according to transmitting end sequences echoed from the transmitting ends to schedule the appropriate resources for the transmitting ends so as to prevent a transmission collision.

Abstract: A wireless communication system is disclosed. The wireless communication system comprises a core network, a base station and a relay station. The relay station transmits a first message with a system resource information of the relay station to the base station. The base station generates a configuration pattern according to the system resource information of the relay station, and transmits a second message with the configuration pattern to the relay station. The configuration pattern is used to divide the radio resource unit of the wireless communication system into a first set and a second set. Therefore, the base station transmits a first signal to the relay station through the first set, and the relay station transfers a second signal with a user equipment through the second set.

Abstract: A user equipment, a small cell and an operation method thereof are provided. The small cell includes a processor and a transceiver. The processor is configured to generate a maintaining downlink signal when the small cell is in an off-state. The maintaining downlink signal utilizes fewer radio resources compared to a normal downlink signal which is generated when the small cell is in an on-state. The transceiver is electrically connected to the processor and configured to continuously transmit the maintaining downlink signal when the small cell is in the off-state and receive an uplink signal from the user equipment. The processor further switches the small cell from the off-state to the on-state according to the uplink signal.