6results about How to "Improve time slot utilization" patented technology

The invention discloses a frame structure implementation method based on a non-terrestrial network, and belongs to the field of non-terrestrial network communication. The method comprises the following steps: an S-gNB broadcasts by using an initial TDD frame structure; after receiving the broadcast, the UE performs random access and reports TA information; the S-gNB divides the UE into different types according to the TA information or the measurement report uploaded by the UE; the measurement report is generated and obtained by the UE according to own measurement control information; the S-gNB determines a configuration scheme of a flexible time slot of the UE according to the type of the UE and the service request information, and issues indication information; and the UE dynamically adjusts the time slot according to the received indication information so as to realize communication between different frame structures and the S-gNB. According to the invention, the TDD frame structure of the UE is dynamically adjusted according to classification, a stable and coherent frame structure switching strategy and a dynamic scheduling strategy adapted to the service requirements of the user are provided, and the NTN is helped to realize efficient TDD frame structure management.

The invention provides a multi-node relay-resistant network unicast flow transmission method based on position information, and belongs to the field of wireless ad hoc networks. According to the method, a broadcasting scheme is divided into an initialization stage, a message control stage and a data transmission stage; in the message control stage, time slot allocation of nodes and establishment of a controlled interception area are completed at the same time by utilizing an RTS-CTS interaction mechanism, and the success rate of network establishment is further improved by introducing an ARQ mechanism; in the data transmission stage, the advantages of the resistance relay network during data transmission are utilized, and a TDMA time slot allocation algorithm is combined, so that a large amount of data is transmitted, and the network load and the transmission success rate are improved while the energy overhead is effectively reduced. According to the method, the problem of network dynamic topology change caused by node movement in the ad hoc network is solved, and the problem of excessive data packet forwarding overhead in a high-density node scene is solved. Through the unicast flow transmission scheme, unicast transmission with low control overhead, high load and high delivery rate in a high-density network can be realized.

The invention provides a mobile network cross-channel seamless switching method and system for indoor and outdoor AGV communication, and the method comprises the steps: enabling an AGV to obtain a wireless data frame through a wireless network card, extracting the intensity of a received signal, and carrying out the scanning of surrounding wireless access points; acquiring a data queue length and a detection time delay; obtaining the weight of each AP based on the time slot occupancy rate, the detection time delay and the received signal strength of the APs meeting the communication requirements; obtaining an optimal switching target AP based on the weight; and calculating the load of the optimal switching target AP after switching, and obtaining a communication time slot allocation scheme between the AGV and the AP. According to the method, the time slot number required by AGV communication in different environments and the change of the network load state are considered, and the problems that the real-time and reliable data transmission cannot be ensured when the AGV is switched between the APs and the time slot resource utilization rate is low under the division multiple access technology are solved, so that the real-time performance and the overall throughput of the AGV communication network are improved.

The present invention relates to the field of communication technology, and discloses a time slot synchronization method, a time slot allocation method, a communication method and a system thereof. The time slot synchronization method comprises: in a beacon time slot in a current beacon cycle, receiving a beacon frame in the current beacon cycle from a master node device and recording the receiving start time of the beacon frame in the current beacon cycle; obtaining the sending time of the beacon frame in the previous beacon cycle of the current beacon cycle from the beacon frame in the current beacon cycle; determining the starting time of the next beacon cycle of the current beacon cycle according to the sending time of the beacon frame in the current beacon cycle and the previous beacon cycle and the receiving start time of the beacon frame in the current beacon cycle; and performing time slot synchronization on the slave node device according to the starting time of the next beacon cycle of the current beacon cycle. The present invention realizes accurate time slot synchronization alignment and lower power consumption under the condition that the module does not support clock configuration.

The application belongs to the technical field of mobile communication, and specifically discloses a TDMA access method based on mixed fixed and dynamic time slots of multi-service, which comprises the following steps: based on time division multiple access (TDMA), a time frame is divided into three segments, i.e., a synchronous broadcast time slot segment, a fixed allocation time slot segment and a dynamic reservation time slot segment, and the three segments are cycled in a time frame period to obtain a time slot structure of a mixed TDMA multiple access protocol; based on the time slot structure, time slot allocation is performed; frame structures corresponding to three types of service data, i.e., periodic data, burst data and real-time voice data, are respectively constructed, service data frames are generated according to the frame structures corresponding to the service data, and the service data frames are configured in specified time slots in the fixed allocation time slot segment or the dynamic reservation time slot segment. Through the application, the requirements of small protocol control overhead, low time synchronization precision requirement, no priori parameter and high time slot utilization rate in a low-load network can be met in a multi-service complex environment.

The application provides a resource configuration method and device, a terminal and a network side equipment. The method comprises: a terminal acquires resource configuration information of a physical uplink control channel (PUCCH); the terminal determines a transmission resource used for uplink transmission according to the resource configuration information; wherein the resource configuration information comprises information of a first type time slot and / or information of a second type time slot; the number of available symbols of the PUCCH of the first type time slot is the total number of symbols of the time slot, and the number of available symbols of the PUCCH of the second type time slot is less than the total number of symbols of the time slot. Embodiments of the application improve the use rate of PUCCH symbols and the time slot utilization rate by enabling the terminal to acquire resource configuration information of the PUCCH, the resource configuration information comprising time slot resources with different numbers of available PUCCH symbols, and enabling the terminal to determine a transmission resource used for uplink transmission from the resource configuration information.