36results about How to "Guaranteed communication needs" patented technology

The invention relates to an emergency communication method of a wireless cell phone and a wireless local area network and a communication device. The communication method comprises the following steps: (1) under normal condition, a communication system is in general communication mode, if the communication system detects that a general communication link fails, the communication system is switched into an emergency communication mode; if the communication system detects that the failures of the general communication link are eliminated, the communication system is switched back to the general communication mode; (2) under normal condition, the communication system is in general communication mode, if an authorized user starts the emergency communication mode, the communication system is switched into the emergency communication mode; if the authorized user closes the emergency communication mode, the communication system is switched back to the general communication mode; and (3) under normal condition, the communication system is powered by an external power supply, if the external power supply fails, the communication system is switched into a standby power supply; if the failures of the external power supply are eliminated, the communication system is switched back to the external power supply. The emergency communication method and the communication device solve the problem of communication between wireless users under emergency conditions.

Provided in an embodiment of the present invention are a measurement relaxation method, a measurement configuration method, a terminal and a network device. The measurement relaxation method comprises the steps: determining a measurement relaxation factor of a first cell, wherein the first cell is at least one of a serving cell and a neighbor cell of the terminal, and the measurement relaxation factor represents the measurement relaxation degree of the first cell; relaxing or not relaxing the measurement of the first cell according to the measurement relaxation factor. According to the embodiment of the invention, the terminal can continuously determine the measurement relaxation factor of the service cell and / or the adjacent cell to realize relaxation of different degrees of terminal measurement, and on the premise of ensuring the communication requirement, the time of the measurement task can be reduced, and the purposes of prolonging the standby time and saving power are achieved.

The invention proposes a single UAV backscatter communication network trajectory optimization and resource allocation method, which belongs to the technical field of UAV backscatter communication network. Including: step 1, cluster the target area composed of all ground backscatter nodes according to the node positions, divide it into N cells, and obtain the centroid position of each cell; step 2, set the UAV to fly continuously between the cells , and hover above the centroid position of each cell to collect data; Step 3, establish the optimization goal of single UAV backscatter communication network trajectory optimization and resource allocation; Step 4, decouple the optimization goal and convert it into each The problem of the hovering time of each cell and the ratio of energy collection and transmission time in each cell is solved iteratively, and the optimal service time T of each cell is output. i and the proportional parameter β in each plot i . The method of the invention reduces the energy consumption of the unmanned aerial vehicle, utilizes time resources to the greatest extent, and significantly improves the energy efficiency of the system.

The embodiment of the present invention discloses a service-oriented spectrum slicing method, device, and computer storage medium; the method may include: based on the upper limit of the number of subcarriers corresponding to the set communication demand scenario and the communication demand of each user equipment Scenarios, randomly assigning subcarriers to each user equipment; wherein, the communication demand scenario includes a first communication demand scenario and a second communication demand scenario; obtain the remaining bandwidth according to the total system bandwidth and subcarriers randomly allocated to all user equipment; Determine candidate user equipment from user equipment in the first communication demand scenario according to a set selection strategy; allocate subcarriers quantitatively to at least one candidate user equipment based on the remaining bandwidth, and obtain an updated remaining bandwidth; The updated remaining bandwidth is used to allocate subcarriers to the user equipment in the second communication demand scenario.

The invention discloses a self-optimization method for interference management based on non-orthogonal multiple access, which belongs to the field of wireless networks. Specifically, firstly, in an ultra-dense scene, each small base station calculates and requests each small base station separately for a fixed sub-bandwidth. The signal-to-noise ratio between users, according to the perceived interference signal strength of adjacent base stations, deletes the adjacent interfering base stations of the base station, and independently constructs a dynamic local interference map; then, considering the user's communication needs and local interference map information comprehensively, Each small base station completes resource allocation independently. In order to reduce inter-network interference, the interference optimization problem is modeled as a game problem based on satisfaction, and a distributed algorithm is used to obtain the resource allocation result. Each small base station reasonably allocates different resources for each requesting user. The power and sub-bandwidth can optimize the system interference. The invention effectively reduces the network interference, ensures the user's communication requirements, and has good convergence.

The invention provides an electromagnetic shielding room and a communication system, and the electromagnetic shielding room comprises a shielding room housing and an LIFI module used for optical communication. The LIFI module is arranged in the shielding chamber shell and comprises a metal shell, a communication optical fiber, an optical transceiver and a power supply unit for supplying power to the optical transceiver; the optical transceiver is arranged in the metal shell and is connected with one end of the communication optical fiber; the other end of the communication optical fiber passes through the metal shell and extends to the outside of the shielding chamber shell; the power supply unit is arranged in the metal shell and is electrically connected with the optical transceiver; and a waveguide window is arranged at the position, corresponding to the optical transceiver, of the metal shell and used for transmitting light emitted and received by the optical transceiver. Therefore, communication requirements in a shielding scene can be expanded based on LIFI communication, and compared with a wired communication mode, the LIFI communication is wireless communication, so that the convenience and the practicability are higher, and the communication experience of a user is further improved.

The application relates to a multimode expansion connector and a multimode micro base station system. The multimode expansion connector includes: a first interface and at least one second interface; the first interface is connected to the main control module, and the second interface is connected to the expansion module; the main control module is connected to the expansion module In different modes; when the main control module communicates with the expansion module, the signal sent by the main control module is sent to the expansion module through the first interface and the second interface. The multi-mode expansion connector can realize the integration and expansion between modules of various modes, that is, it can flexibly realize the communication between multiple different modes (or different modes), so that users can be guaranteed that different modes The communication needs of the business below.

The invention discloses a managing method for mobile communication between high-destruction resisting distributed user networks, adopting the change of management mechanism on existing management entity to implement user position updating and change of inquiry method. The hometown proxy of the invention can automatically grow and synchronize according to network condition and actual use condition, and can complete distributed user register and inquiry for a user. Using existing wireless access network like 802.11 network, and adopting the method of the invention can compose a high-destruction resisting and reliable communication network, implementing communication requirement in some emergency occasions (such as the conditions of earthquake, large-range natural disaster, military application, etc.).

The invention relates to a support vector machine-based site selection method for disaster relief mobile emergency base stations. According to the center position of the disaster-stricken area, the site selection area of ​​the on-site data collection base station is set; the building label is given; based on the building position coordinates and labels, using The support vector machine solves the hyperplane; in the case of considering the width of the building, check whether the solved hyperplane meets the requirements in terms of geometric relationship; based on the saved field data collection base station position solution and the mobile command center base station position solution, estimate the base station signal Attenuation during transmission; if the received signal between the field data collection base station and the mobile command center base station meets the requirements, then output the location solution of the field data collection base station and the mobile command center base station. The invention can obtain the effective positions of the on-site data collection base station and the mobile command center base station, and ensures effective communication between the on-site data collection base station and the mobile command center base station.

The invention provides a network access power control method which is applied to network access control equipment. The method includes the following steps: obtaining a minimum transmission rate of a networking device currently connected to the network access control equipment; calculating minimum power values corresponding to the minimum transmission rate and the networking device and supported bythe network access control equipment; selecting a maximum value from the minimum power values as an output power value of the network access control equipment; and controlling the network access control equipment to reach the output power value. By controlling the power of the network access control equipment, in the case that the method makes each of networking devices reach the minimum transmission rate, the power of the network access control equipment is reduced as small as possible, thereby reducing energy consumed by a network device while communication requirements of the networking devices can be ensured. The invention provides a network access power control system, network access control computer equipment, and a storage medium.

The invention discloses a V2X resource allocation method based on D2D communication. The method comprises the following steps: constructing an interference topological graph according to interference information; carrying out clustering on all vehicle users, wherein vehicle users causing no interference to each other are grouped into one cluster; allocating a channel for each vehicle user; and carrying out power adjustment on all cellular users and the vehicle users through a power adjustment scheme. The V2X resource allocation method based on D2D communication can effectively suppress cross-layer interference and same-layer interference between the cellular user layer and the vehicle user layer, and maximize throughput capacity of the cellular users under the condition of ensuring communication requirements of the vehicle users. The invention also provides a V2X resource allocation system based on the D2D communication.

The embodiment of the invention provides a cross-application communication method and device.The method comprises the steps that a main application and a plurality of sub-applications are created at the front end, all the applications correspond to different pages, and when message sending operation is carried out, the first sub-application sends a message to the main application according to application data stored locally; judging whether a target channel corresponding to the message and a corresponding second sub-application exist or not; under the condition that the second sub-application and the target channel exist, the first sub-application broadcasts and sends a message; and the second sub-application receives the message and sends the message to a page corresponding to the second sub-application through the target channel. The real cross-page communication is realized instead of father and child page communication, the communication requirements among a plurality of front-end pages of a large enterprise can be ensured, the pressure of a server is reduced, and the method has the characteristics of wide applicability, safety and high efficiency. Meanwhile, the method also conforms to the trend of front-end micro-services, is suitable for collaborative development and mutual calling of a plurality of front-end teams, and meets the requirements of business development.

The present invention provides a method for controlling network access power, which is applied to a network access control device, comprising: acquiring the minimum transmission rate of a networking device currently connected to the network access control device; calculating the network access control device Supporting the minimum transmission rate and the minimum power value corresponding to the networked device; selecting the maximum value of the minimum power value as the output power value of the network access control device; controlling the network access control device to reach the specified The output power value mentioned above. In the present invention, by controlling the power of the network access control device, the power of the network access control device is reduced as little as possible under the condition that each network-connected device can achieve the lowest transmission rate, so that the communication between the network-connected devices can be ensured. While meeting the demand, reduce the energy consumed by network equipment. The invention provides a network access power control system, computer equipment, and a storage medium.

The present invention discloses an access control method and device, wherein the access control method is used for mobile communication terminals, and the access control method includes: measuring the first signal quality and the first signal quality of the first signal from the mobile relay node The second signal quality of the second signal from the macro base station; when the difference between the first signal quality and the second signal quality is within a predetermined interval, sending an indication message to the mobile relay node, so that the mobile relay node Determining the first number of mobile communication terminals whose corresponding difference between the first signal quality and the second signal quality is in the predetermined interval according to all received indication messages, and determining an access proportional coefficient according to the number; then Inputting the access object selected from the mobile relay node and the macro base station according to the access ratio coefficient. The invention improves the communication quality.