50results about How to "Increase data transfer rate" patented technology

The invention discloses a cache processing method of heterogeneous equipment, a heterogeneous system, a product, a device and a medium, and relates to the technical field of data storage. And according to the target virtual address access times corresponding to each device in the heterogeneous system, realizing a global data caching mechanism. And determining a file page corresponding to the target heterogeneous device based on the target virtual address access frequency, so that the file system layer has the capability of managing the memory cache of the heterogeneous device. And the predicted file page of the target heterogeneous device is verified, and the file page is moved under the condition that the verification is passed, so that the distribution accuracy of the target heterogeneous device is improved. The file page of the target heterogeneous device is mapped and moved to the memory of the host side, the target heterogeneous device does not need to be accessed, the file page stored in the memory of the processor is directly accessed, the increased access rate of the processor accessing the target heterogeneous device is avoided, the delay of accessing the memory of the target heterogeneous device is reduced, and the access efficiency is improved. And the data transmission rate and the system efficiency of the heterogeneous system are improved.

The invention discloses a rate division multiple access communication network total rate optimization method and system, and belongs to the technical field of communication. The method comprises the following steps: constructing a downlink rate segmentation multiple access communication system model based on an intelligent reflecting surface; the communication system model comprises a base station, an intelligent reflecting surface and a user side; grouping users in the user side, and constructing a hierarchical rate segmentation multiple access model based on user grouping; the hierarchical rate segmentation multiple access model comprises a corresponding relation between the user group and information flow generated by the base station; and according to the hierarchical rate segmentation multiple access model and the intelligent reflecting surface, assisting downlink communication between the base station and the user side. According to the method and the device, the layered rate division multiple access model is constructed by grouping the users, and the system performance is improved by combining the intelligent reflecting surface passive beam forming and the rate division multiple access active beam forming, so that the problems of spectrum resource shortage and signal interference can be solved, and the spectrum efficiency is greatly improved.

The invention provides a data transmission method and device, data transmission equipment and a computer readable storage medium. The data transmission method comprises: obtaining a single packet transmission data volume of data to be transmitted, the single packet transmission data volume being determined by negotiation between a data sending device and a data receiving device; the maximum transmission data packet number of the to-be-transmitted data is acquired, and the maximum transmission data packet number is determined based on the equipment parameters of the data receiving equipment and the single packet transmission data volume; segmenting the to-be-transmitted data according to the single packet transmission data volume and the maximum transmission data packet number to obtain a plurality of data segments of the to-be-transmitted data; and sending the plurality of data segments to the data receiving equipment. According to the invention, the transmission bandwidth utilization rate of the Bluetooth can be improved, and the data transmission rate of the Bluetooth is improved.

The invention relates to the technical field of 5G communication modules, in particular to a 5G communication module with a self-adaptive frequency spectrum and a use method of the 5G communication module. Comprising a spectrum sensing and identification module, a spectrum measurement and reconstruction module based on compressed sensing, a self-adaptive spectrum selection and dynamic spectrum allocation control module, a dynamic channel modeling and prediction module, a comprehensive optimization algorithm module and a feedback-assisted channel estimation control module. Wherein the spectrum sensing and recognition module adopts a deep learning algorithm to improve the precision and speed of spectrum sensing, and meets the requirements of 5G high data rate and low delay; the specific implementation mode comprises a convolutional neural network (CNN) structure, the convolutional neural network is adopted for spectrum sensing, and the spectrum state can be accurately and rapidly recognized in a complex dynamic environment; by training a large amount of spectrum data, the CNN can extract spectrum features and effectively distinguish target signals and interference signals, and the precision and speed of spectrum sensing are significantly improved.

The invention relates to the technical field of reinforcement learning, WIFI (Wireless Fidelity), Internet access, related services and the like, and provides an intelligent management method of a portable WIFI based on reinforcement learning and the portable WIFI. The state representation data of the carry-on WIFI comprises a flow use record of the carry-on WIFI of the user, the continuous use duration of the user for connecting the carry-on WIFI each time and the signal intensity of the carry-on WIFI of the user equipment, and inputting the state representation data of the carry-on WIFI into the trained reinforcement learning model, the data transmission rate adaptive to the portable WIFI of the current user is obtained through analysis of the reinforcement learning model, the flow use state of the flow package of the portable WIFI of the current user is intelligently adjusted according to the data transmission rate, and the flow package adaptive to the portable WIFI of the current user is intelligently recommended according to the flow use state. Therefore, the data transmission rate and the flow recommendation of the portable WIFI are optimized, and the product use experience of the user is improved.

The invention discloses an intelligent printer supporting printing automatic verification and an automatic verification method, and relates to the technical field of intelligent printers, the intelligent printer supporting printing automatic verification comprises a printer body and a control assembly used for controlling the printer body, and the control assembly comprises a printing control module used for printing image data on the surface of an RFID tag; the RFID read-write module is used for carrying out read-write operation on the electronic data in the RFID tag; the detection module is used for detecting the state of the printer in real time to obtain the state of the printer; the data processing module is used for verifying the correctness of the RFID tag in the printing process to obtain a verification result; the control module is used for controlling the printing process and reprinting the wrong label to realize automatic correction of the printer; according to the invention, the correctness of the image data and the electronic data of the RFID tag can be automatically checked in the printing process, the intelligent control of the printer and the automatic correction of the tag are realized, and the tag printing accuracy is improved.

The invention discloses a two-way communication transmission method based on full-duplex communication, which realizes efficient self-interference elimination in an analog domain and a digital domain by deploying antenna arrays at a transmitting end and a receiving end and combining a self-adaptive beam forming technology and a self-adaptive filter, and realizes synchronous two-way transmission by adopting an orthogonal frequency division multiplexing technology. The spectrum utilization rate and the communication quality are improved by detecting available channels and optimal channel allocation in real time, the weight value is intelligently calculated, the resource allocation is optimized and the priority transmission of key data is ensured according to the importance, the delay sensitivity and the network state of the data packet; a fuzzy control algorithm is used for evaluating the signal-to-noise ratio and the bit error rate of a communication signal in real time, the transmitting power and channel selection are dynamically adjusted according to an evaluation result, adaptive optimization of communication parameters is achieved, and the defects of an existing full-duplex communication system in the aspects of self-interference elimination, channel allocation, data scheduling and communication parameter optimization are effectively overcome.

The invention discloses a difference-based satellite-ground laser ranging and communication integrated method, which belongs to the technical field of optical measurement, and is characterized in that laser communication and differential laser ranging are carried out by using an integrated light source according to a satellite differential laser ranging principle of continuous laser, so that the satellite laser ranging and the laser communication share one laser light source; the functions of laser ranging and laser communication are completed, and integration of a light source is achieved. In order to realize a high-precision satellite-ground laser ranging technology, the precision of a communication satellite orbit algorithm is improved, a laser communication system can realize a data transmission rate higher than that of traditional radio communication, and the requirements of real-time transmission of high-resolution images or scientific data can be met.

The invention provides a network access control method based on a network side vehicle container, which belongs to the technical field of network security, and comprises the following steps: deploying a business service container and the network side vehicle container in a container unit; configuring an access white list through the service management and control platform, and synchronizing the access white list to a network side vehicle container; when monitoring that a network access request initiated by the business service container is public network access, hijacking the public network access request to a network side vehicle container based on a firewall rule; the method comprises the following steps: acquiring a protocol type and server associated information in a public network access request, extracting corresponding server verification information from the server associated information according to the protocol type, querying in an access white list according to the server verification information, and when acquiring that the access white list contains the server verification information, querying in the access white list according to the public network access request. And establishing communication connection with a public network server for data transmission. According to the method, detection of public network service requests of various protocol types is realized, and the convenience of accessing white list configuration is improved.

The invention provides an RIS-assisted cellular-free large-scale MIMO system performance analysis method. The RIS-assisted cellular-free large-scale MIMO system performance analysis method comprises the following steps: establishing an RIS-assisted cellular-free large-scale MIMO system model under a spatial correlation Rayleigh fading channel; performing uplink training based on the constructed cellular-free large-scale MIMO system model; performing uplink channel data transmission based on the trained uplink; designing a probability density function of an expected signal and an interference signal from other users according to the uplink channel data; according to the probability density function of the expected signal and the interference signal from other users, designing the probability density function of a single signal to interference plus noise ratio of different users; and based on a signal to interference plus noise ratio probability density function, accurately analyzing the outage probability, the coverage probability and the traversal capacity. According to the method, the accuracy of the performance index is verified through a numerical result, the potential advantage of integrating the RIS into the existing cellular-free large-scale MIMO system is shown, and theoretical support is provided for deployment of the RIS-assisted cellular-free large-scale MIMO system in a 6G scene.

The invention belongs to the field of wireless communication, and particularly relates to a wireless signal multi-dimensional array coding method and system based on dynamic rank optimization. The method comprises the following steps: detecting state information of a wireless channel, predicting state change of the channel by using a pre-trained deep learning model, and generating a dynamic optimization multiplier; adjusting a preset static optimization multiplier by using the dynamic optimization multiplier, constructing a target function for jointly optimizing the energy efficiency and the spectrum efficiency, and determining an optimal transmission rank by solving the target function; comparing the optimal transmission rank with the current transmission rank to determine a rank-up or rank-down operation; and reconstructing a transmission signal of the wireless channel according to a result of the rank increasing or decreasing operation. According to the method, the optimization target is dynamically adjusted by predicting the channel change, and the asymmetric ascending and descending rank algorithm is adopted, so that the adaptive transmission rank optimization in a complex time-varying channel environment is realized, and the communication performance is remarkably improved.

This invention provides a method for UAV obstacle avoidance trajectory planning based on digital elevation maps, including digital elevation map conversion, initial trajectory loading, trajectory pre-planning, and trajectory re-planning. Using this invention, UAV obstacle avoidance trajectory planning can fully consider terrain variations during low-altitude flight missions to achieve ground-hugging flight. Simultaneously, this method first performs offline trajectory pre-planning and uploads the planned trajectory to the flight controller to provide flight guidance, effectively solving the problem of low real-time performance. When obstacles or threat areas appear on the pre-planned trajectory, the method provided by this invention can find the vertices of obstacles with complex shapes, handle obstacle overlap issues, and thus quickly plan a flight path.

The present invention proposes a method for improving UWB bandwidth, including: determining the pulse shaping coefficient of the UWB signal to define the basic shape and frequency characteristics of the signal; designing the pulse parameters of the injection signal to expand the signal bandwidth and meet the power and spurious requirements; calculating the total power after the original UWB signal and the injection signal are synthesized to ensure that the power requirements and spectrum distribution are met; transmitting the synthesized UWB signal to achieve bandwidth expansion. The method effectively expands the bandwidth by injecting redundant signals during the idle period of the UWB signal, while reducing the difficulty of spectrum spurious design and improving the flexibility of system design. The present invention meets the UWB system's requirement for 10dB bandwidth, is applicable to a variety of devices, improves the data transmission rate, and is particularly suitable for indoor high-speed wireless access, providing technical support for UWB technology in a variety of application scenarios.

This application discloses a method, apparatus, device, and medium for multi-person voice communication in a live streaming room. The method includes: establishing a direct communication link with viewer nodes corresponding to the direct connection node information broadcast by a media server; when the number of forwards of the broadcaster's voice audio data and the uplink bandwidth meet corresponding preset conditions, comparing the direct connection latency of one or more voice viewer nodes that have established direct communication links with the media server latency, and determining the voice viewer nodes whose direct connection latency does not exceed the media server latency; determining the direct connection transmission capability of each voice viewer node based on the direct connection transmission characteristic information obtained through the direct connection communication links of each voice viewer node, and transmitting the broadcaster's voice audio data with the voice viewer node with the better direct connection transmission capability through the direct communication link. This application pushes the broadcaster's voice audio through a direct communication network, reducing voice latency in multi-person voice live streaming rooms and improving the user's live streaming voice experience.

This invention discloses a partial discharge (PD) signal denoising method based on image information entropy and multivariate variational mode decomposition (MMD). The method involves converting the noisy signal into a grayscale image, calculating the image information entropy, and optimizing the number of modes K in the MMD by combining Pearson correlation coefficient and execution efficiency to determine the optimal value. The noisy PD signal is then decomposed. The kurtosis value of each intrinsic mode component is calculated, and the nature of the mode component is determined based on a threshold, classifying it as either a dominant PD component or a noise component. A mathematical statistical method using the 3σ criterion is employed to filter out normally distributed white noise. The reconstructed signal is then denoised using an improved wavelet thresholding method to obtain the denoised PD signal. This denoising method accurately reduces noise in noisy PD signals, achieving good noise suppression and restoring the waveform characteristics of the PD signal while maintaining high execution efficiency.

The application provides a data transmission circuit and method based on signal conversion, a chip and an electronic device, and belongs to the field of circuits.The data transmission circuit based on signal conversion comprises a first conversion module and a second conversion module.The first conversion module is used for receiving a parallel signal from a first clock domain and converting the parallel signal into a serial signal of a second clock domain, wherein the frequency of the first clock domain is less than the frequency of the second clock domain.The second conversion module is used for receiving the serial signal and converting the serial signal into the parallel signal.The scheme realizes the transmission of the parallel signal from the first conversion module to the second conversion module within a first clock cycle.By applying the data transmission circuit based on signal conversion to transmit signals between FPGAs, a large number of signals can be transmitted from one FPGA to another FPGA within a clock cycle, thereby reducing the difficulty of circuit design and timing convergence.

The invention relates to the technical field of NAS (Network Attached Storage), and discloses a method and a device for realizing NAS stable connection under multiple links, and the method comprises the following steps: after a preliminary connection relationship is successfully established between a client and NAS equipment, proxy service selects an optimal link from all standby links between the client and the NAS equipment as a current link; the proxy service calculates the current transmission rate of the current link by analyzing the proxy traffic of the current link; the proxy service judges whether the current link meets a preset link normal condition or not according to the current transmission rate; when it is judged that the current link does not meet the normal link condition, the proxy service re-executes the operation of selecting the optimal link from all the standby links between the client and the NAS device; and when the current link is judged to meet the normal link condition, the proxy service keeps the connection state of the current link. Therefore, the link abnormity can be accurately judged, so that the connection stability of the NAS equipment is improved.

The utility model discloses a desktop computer mainboard on-board BGA central processing unit DDR6 memory structure, which belongs to the technical field of desktop computer mainboard structures, and comprises a mainboard, an on-board BGA central processing unit is arranged in the middle of the upper end of the upper surface of the mainboard, a heat conduction plate is arranged above the on-board BGA central processing unit, and the heat conduction plate is connected with the mainboard. The mainboard comprises an onboard BGA central processing unit, a DDR6 memory slot is formed in one side of the onboard BGA central processing unit, a 24PIN power supply interface is formed in one side of the DDR6 memory slot, a plurality of vertically-arranged SATA interfaces are formed below the 24PIN power supply interface, and a startup jumper needle port and a Type-C needle port are sequentially formed in the lower edge position of the upper surface of the mainboard from right to left. The CPU of the mainboard is integrally packaged by adopting the BGA, and meanwhile, a special DDR6 slot is designed to be matched with a relevant IO interface and a mainboard needle port, so that the mainboard has better transmission rate, higher stability, lower power consumption and larger capacity, can meet the requirement of a current computer for large throughput data volume of AI large model operation, and is externally connected with a plurality of electronic devices.

The invention relates to a network optimization method and system based on a cloud network fusion technology, and the method specifically comprises the following steps: 1, resource monitoring: monitoring the use conditions of cloud resources and network resources in a network, and collecting monitoring data; 2, data analysis: preprocessing the collected and monitored data, such as data cleaning and normalization, analyzing the data by using a machine learning algorithm, and identifying bottlenecks and optimization points in the network; step 3, resource scheduling: dynamically adjusting distribution of cloud resources and network resources according to an analysis result, and determining an optimal resource distribution scheme by using an optimization algorithm; step 4, performance evaluation: evaluating the optimized network performance, including bandwidth, delay and packet loss rate indexes, and using a performance evaluation model to evaluate the optimization effect; and step 5, mechanism feedback: feeding back an optimization result to the system to realize continuous network optimization, and adjusting a resource scheduling strategy according to a feedback result to further improve the network performance.

The invention relates to a vertical interconnection packaging method and device for edge AI chip multilayer storage units. The method comprises the following steps: firstly, acquiring initial packaging parameters of a multi-layer storage unit of an edge AI chip, and ensuring that the packaging parameters comprise physical attributes related to vertical interconnection; and then, by constructing a vertical interconnection model of the multi-layer storage unit and combining the packaging parameters of each storage unit, a connection structure between the layers is generated. Then, on the basis of the generated connection structure, partition division is carried out on the conduction structure between the storage units, so that a plurality of independent transmission channels are obtained; and optimizing the signal layout of the transmission channels by adopting an automatic wiring algorithm to determine the layout mode of the signal in each route, adjusting packaging parameters according to the layout mode, and finally completing the vertical interconnection packaging of the multilayer storage unit of the edge AI chip. According to the invention, the packaging precision is improved, and the stability and anti-interference performance of signal transmission are effectively enhanced.

This invention discloses a method and system for low-Earth orbit (LEO) satellite communication based on dual-frequency dual-circular polarization beam scanning, relating to the field of LEO satellite communication technology. The method includes the following steps: a dual-frequency dual-circular polarization antenna unit performs identity matching verification based on satellite beacon signals transmitted by the LEO satellite to establish a communication connection with it; once the communication connection is established, the antenna unit adjusts and switches to the corresponding communication frequency based on satellite communication frequency band parameters, and simultaneously receives downlink data and transmits uplink data using dual-circular polarization mode; during data transmission, a feed phase control signal is generated based on satellite orbit parameters to adjust the beam pointing direction in real time; when the LEO satellite is about to pass over, the satellite beacon signal of the next LEO satellite is acquired to establish a communication connection and transmit data, thereby achieving seamless communication switching; through dynamic scanning and seamless switching of the dual-frequency dual-circular polarization beam, communication stability and data transmission efficiency are effectively improved.

The invention provides an intelligent sensor network system based on star flash and an intelligent home connection method. The system comprises intelligent home equipment, an intelligent home control middle station and intelligent terminal equipment, the edge gateway, the regional gateway and the central gateway are connected based on a second satellite flash communication module; the central gateway is connected with the intelligent terminal equipment based on the third satellite flash communication module; establishing a communication connection with the corresponding target edge gateway based on a first star flash communication module of the first smart home device; a first star flash communication module based on the first smart home device transmits the environment information and the device information to a target edge gateway; transmitting the equipment information to a regional gateway based on a second satellite flash communication module; the abnormity analysis result is transmitted to the central gateway based on the second satellite flash communication module; and transmitting the encrypted data to the intelligent terminal equipment based on the third satellite flash communication module. According to the invention, the stability, reliability and data transmission rate of the intelligent sensor network system are improved.

The invention discloses a beef cattle limp behavior detection system and method based on deep learning, the system comprises a data acquisition module, a data transmission module, a data analysis module and a mobile receiving module, and the method comprises the following steps: acquiring walking data and positioning data of beef cattle in real time through the data acquisition module; the positioning data and the walking data are sent to a data analysis module through a data transmission module; the positioning data are analyzed through the data analysis module, positioning coordinates are generated, a limp behavior detection model is established in combination with the walking data, the walking behavior of the beef cattle is recognized in real time through the limp behavior detection model, and limp anomaly detection is conducted according to the walking data; and the analyzed positioning coordinates and the limping anomaly detection result are sent to a mobile receiving module, so that accurate positioning and abnormal behavior early warning of beef cattle are realized. According to the method, the manual workload is reduced, the accuracy of judging the limp behavior of the beef cattle is improved, the cost of a farm can be reduced to a certain extent, and the animal welfare is improved.

The present invention discloses an IPFS data transmission optimization method based on network multipath, and relates to the technical field of IPFS data transmission. The present invention at least includes the following steps: embedding the MPQUIC protocol into IPFS as an extension plug-in; the node of the IPFS that integrates the MPQUIC protocol chooses whether to start the monitoring of the MPQUIC protocol according to the physical environment; IPFS establishes a connection with the IPFS peer node according to the MPQUIC protocol keyword and the node identity information; and selects the user file and performs the file transfer operation. The present invention greatly utilizes the network bandwidth resources during data transmission. At the upload end, the upload time is shortened due to the integration of the bandwidth of multiple network paths; the present invention will not conflict with other versions of IPFS, and the MPQUIC protocol introduced by the integration is compatible with the QUIC protocol natively supported by IPFS.

The invention relates to an electric vehicle brushless motor controller, which comprises a PIC16F72 single-chip microcomputer, a current detection module, a power supply module, a brake module, a function module, an overcurrent protection module and an induction module, and is characterized in that the PIC16F72 single-chip microcomputer is connected with the current detection module, the power supply module, the function module, the overcurrent protection module and the induction module; the current detection module comprises a comparator M1 and a resistor RG23. The negative input end of the comparator M1 is connected with one end of a resistor RG15. The positive input end of the comparator M1 is connected with one end of a resistor RG19 and one end of a resistor RG55; the output end of the comparator M1 is connected with a second pin of the PIC16F72 single chip microcomputer; one end of the resistor RG23 is connected with the output end of the comparator M1, the other end of the resistor RG23 is connected with the other end of the resistor RG15 and the other end of the resistor RG19, and the other end of the resistor RG55 is grounded.

The application provides a data transmission method, device, equipment and storage medium. The method comprises: creating M PDU sessions; N PDU sessions are used for transmitting target service data, and Q PDU sessions are used for transmitting test data; M is an integer greater than or equal to 1, N and Q are integers greater than or equal to 1 and less than or equal to M, and the sum of N and Q is equal to M; if an air interface between a terminal device and a network device is not in a congestion state, obtaining a target rate detected by the terminal device; the target rate is a data transmission rate of the M PDU sessions at a MAC layer obtained by the terminal device transmitting the test data in the Q PDU sessions through a preset peak rate; for the M PDU sessions, if a data transmission rate at an IP layer is less than a first data transmission rate, increasing a data transmission rate of the N PDU sessions on the target service data; the first data transmission rate is equal to a product of the MAC layer data transmission rate and a first rate factor.

The application provides a compound eye type visible light multiple access communication method, and belongs to the technical field of visible light communication. The communication method fully utilizes the characteristics of a complex channel environment, designs a light receiving end composed of multiple PDs in a VLC system into a compound eye type multiple PD receiving layout mode, and provides a corresponding communication method according to the designed compound eye type PD receiving layout mode. Compared with using a single PD to realize data transmission of the VLC system, the application can fully utilize the characteristics of the complex channel environment, design the light receiving end composed of multiple PDs into the compound eye type receiving layout mode, not only can sufficiently utilize the visible light signals in the complex space scene, improve the received light signal strength, but also can multiplex the visible light communication channel, realize data communication transmission of multiple LEDs, and further improve the data transmission rate of the VLC system.

The invention relates to a method for transforming a connector. The method is used for transforming a connector comprising a plug end and a socket end. The method comprises the following steps of: increasing the thickness of a first part line segment of a signal terminal at a plug end, wherein the position of the first part line segment is adjacent to a hollow part of an insulating plate; and the thickness of a second part line segment of the signal terminal is increased at the socket end, and the second part line segment is provided with a slope structure. According to the method, signal terminal structures of a plug end and a matched socket end of the connector are modified, and modification is selectively carried out on a circuit board of the plug end of the connector, so that the transmission bandwidth of the connector is increased, and the data transmission rate of the connector is improved.

The present application provides an antenna assembly and an electronic device, the antenna assembly includes a radiator, a signal source and a tuning circuit, the radiator includes a first sub-radiator and a second sub-radiator, the first sub-radiator and the second sub-radiator are coupled through a coupling gap; the first sub-radiator includes a first grounding terminal and a first coupling terminal, and a feeding point arranged between the first grounding terminal and the first coupling terminal, and the first grounding terminal is grounded; the second sub-radiator includes a second grounding terminal and a second coupling terminal, and a tuning point arranged between the second grounding terminal and the second coupling terminal, the first coupling terminal and the second coupling terminal are spaced apart through a coupling gap, and the second grounding terminal is grounded. The signal source is electrically connected to the feeding point. One end of the tuning circuit is electrically connected to the tuning point, and the other end of the tuning circuit is grounded. The tuning circuit is used to tune the second sub-radiator so that the second sub-radiator supports at least two resonant modes. The present application provides an antenna assembly and an electronic device for increasing the bandwidth of the antenna.

The present disclosure relates to a terminal and a first base station in a wireless communication system and a method performed by the same. A method performed by a terminal in a wireless communication system includes: receiving, from a first base station, a radio resource control (RRC) message for configuring a dual connectivity (DC) for the terminal, in which the first base station is a primary cell group (MCG) operation of the DC and a second base station is a secondary cell group (SCG) operation of the DC; receiving an RRC release message from the first base station to suspend the RRC connection; storing a configuration of the SCG in a terminal context in a case where the RRC connection is suspended; receiving an RRC recovery message from the first base station to recover the suspended RRC connection; and in a case where the RRC recovery message includes first information indicating that the configuration of the SCG is maintained, maintaining the configuration of the SCG stored in the terminal context based on the first information.