Abstract: A method for URLLC transmission with UE blind detection on scheduling information is proposed. Since increased control channel reliability requires increased physical resource, it is proposed to exploit UE blind detection on part of the URLLC data burst to trade-off control channel reliability with reduced physical radio resource for URLLC transmission. The URLLC burst is encoded to a plurality of low-density parity-check (LDPC) code blocks (CBs), and UE blindly decodes over multiple candidate configurations of the first data CB, and then the non-signaled scheduling information and the first data CB are successfully retrieved passing CRC check, where the CRC of longer size is added to the first data CB. The proposed method leverages UE blind detection and higher layer signaling to carry part of scheduling information to reduce control channel payload, which saves physical radio resource and improves reliability.

Abstract: A dynamic time division duplex (TDD) mechanism for small cellular networks is disclosed. The mechanism dynamically allocates radio resource usage with commensurate increases in throughput and reductions in latency. For example, scheduling data comprising scheduling information data can be received by a device, wherein the scheduling information data comprises uplink allocation data. Then the device can switch from a first mode to a second mode as a function of the uplink allocation data, and transmission data can be transmitted in a subframe of a frame by skipping a resource allocated for the scheduling information data.

Abstract: Concepts and examples pertaining to efficient coding switching and modem resource utilization in wireless communication systems are described. A processor of a modem of a user equipment (UE), configured with at least a first-capacity decoder and at least a second-capacity decoder, receives a common virtual carrier (CVC), a dedicated virtual carrier (DVC), or both. The CVC contains common information shared by multiple UEs, control information for the UE, and/or data information related to first data destined for the UE. The DVC contains control information for the UE, the first data, or a combination thereof. The first-capacity decoder decodes data of a small size up to a low data rate. The second-capacity decoder decodes data of a large size up to a high data rate. The processor determines whether to decode the first data using the first-capacity decoder or the second-capacity decoder based on the data information in the CVC.

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: Methods of data allocation and signal receiving, a wireless transmitting apparatus, and a wireless receiving apparatus are provided based on orthogonal frequency division multiplexing (OFDM) technology. The wireless transmitting apparatus obtains a data stream and allocates the data stream to a first sub-carrier set. Each of the first sub-carrier set and a second sub-carrier set has sub-carriers with opposite frequencies to each other, respectively. The second sub-carrier is emptied or allocated according the data stream allocated to the first sub-carrier set. The data stream is converted into an OFDM signal transmitted through a transmitting module. The wireless receiving apparatus includes a single branch receiver for receiving a radio frequency (RF) signal and outputting a baseband signal. Subsequently, the data stream is restored from the baseband signal.

Abstract: Methods of data allocation and signal receiving, a wireless transmitting apparatus, and a wireless receiving apparatus are provided based on orthogonal frequency division multiplexing (OFDM) technology. The wireless transmitting apparatus obtains a data stream and allocates the data stream to a first sub-carrier set. Each of the first sub-carrier set and a second sub-carrier set has sub-carriers with opposite frequencies to each other, respectively. The second sub-carrier is emptied or allocated according the data stream allocated to the first sub-carrier set. The data stream is converted into an OFDM signal transmitted through a transmitting module. The wireless receiving apparatus includes a single branch receiver for receiving a radio frequency (RF) signal and outputting a baseband signal. Subsequently, the data stream is restored from the baseband signal.

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: Methods of data allocation and signal receiving, a wireless transmitting apparatus, and a wireless receiving apparatus are provided based on orthogonal frequency division multiplexing (OFDM) technology. The wireless transmitting apparatus obtains a data stream and allocates the data stream to a first sub-carrier set. Each of the first sub-carrier set and a second sub-carrier set has sub-carriers with opposite frequencies to each other, respectively. The second sub-carrier is emptied or allocated according the data stream allocated to the first sub-carrier set. The data stream is converted into an OFDM signal transmitted through a transmitting module. The wireless receiving apparatus includes a single branch receiver for receiving a radio frequency (RF) signal and outputting a baseband signal. Subsequently, the data stream is restored from the baseband signal.

Abstract: Methods of data allocation and signal receiving, a wireless transmitting apparatus, and a wireless receiving apparatus are provided based on orthogonal frequency division multiplexing (OFDM) technology. The wireless transmitting apparatus obtains a data stream and allocates the data stream to a first sub-carrier set. Each of the first sub-carrier set and a second sub-carrier set has sub-carriers with opposite frequencies to each other, respectively. The second sub-carrier is emptied or allocated according the data stream allocated to the first sub-carrier set. The data stream is converted into an OFDM signal transmitted through a transmitting module. The wireless receiving apparatus includes a single branch receiver for receiving a radio frequency (RF) signal and outputting a baseband signal. Subsequently, the data stream is restored from the baseband signal.

Abstract: A dynamic time division duplex (TDD) mechanism for small cellular networks is disclosed. The mechanism dynamically allocates radio resource usage with commensurate increases in throughput and reductions in latency. For example, scheduling data comprising scheduling information data can be received by a device, wherein the scheduling information data comprises uplink allocation data. Then the device can switch from a first mode to a second mode as a function of the uplink allocation data, and transmission data can be transmitted in a subframe of a frame by skipping a resource allocated for the scheduling information data.

Abstract: Distributed resource allocation for devices can be facilitated via a priority sequencing scheme. The priority sequencing scheme can mitigate source device collisions by assigning priority values to source devices and channels associated with the source devices. Various priority sequencing can be used based upon whether source devices can only communicate with a limited number of sink devices or whether source devices can communicate with all sink devices.

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 video transmission method is provided. The video transmission method includes providing a wireless transmission environment for transmitting a video, wherein the wireless transmission environment includes an application layer, a media access control (MAC) layer and a physical layer; detecting a delay bound and a frame error rate (FER) of the video in the wireless transmission environment; detecting a present packet error rate (PER) of a packet in the physical layer when the physical layer transmits an error report to the MAC layer; calculating an estimated PER; comparing the present PER and the estimated PER for providing a determined result; and calculating an optimal video rate of the video and an optimal payload length of the packet using a geometric programming scheme when the determined result indicates that a retransmission is required, wherein the geometric programming scheme is based on the delay bound and the FER.

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 long term evolution network system and a group communication method thereof. The long term evolution network system includes a base station and a user equipment. The base station stores a communication group list. The user equipment listens to the base station according to a pre-authorized setting. The base station broadcasts the communication group list and the user equipment receives the communication group list. The user equipment selects a communication group from the communication group list according to the pre-authorized setting.

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 direct mode communication network apparatus is provided. The direct mode communication network apparatus estimates a connection time and a proximity time of different client direct mode communication apparatuses according to apparatus information of the different client direct mode communication apparatuses. The direct mode communication network apparatus establishes a direct mode communication connection between the client direct mode communication apparatuses if the proximity time is greater than the connection time.

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 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.