121results about How to "Meet service quality requirements" patented technology

The invention discloses an air-ground integrated network architecture based on a software defined network and network function virtualization. According to the system architecture, the entire network consists of a ground network part and a space network part, and is divided in a unified manner into a management layer, a control layer and a forwarding layer. The management layer is responsible for registering and querying the network status and network service functions of the ground part and the space part in the air-ground integrated network and making routing, security, billing, service call and resource management strategies. The control layer consists of a ground part and a space part, and is responsible for controlling data forwarding according to the strategies of the management layer and collecting the information of network links and network service functions. The forwarding layer consists of a ground part and a space part, and is responsible for forwarding data and providing network service functions. The architecture uses a software defined network and an idea of network function virtualization, and efficient information transmission control and on-demand satellite service providing are realized in an air-ground integrated network.

The invention discloses a dynamic bandwidth resource allocation method and system, which considers the differences of brandwith, time delay, priority level in different business, ensures the service quality of business, solves contradictions between the efficient use of brandwith and the service quality more efficiently, at the same time sloves the problem of the uniform DBA scheduling mechanism in diversified user terminal, and meets the service quality request of 'three nets in one'.

The invention provides a data receiving state feedback method, a data retransmission method and device and a terminal in terminal direct connection communication. The data receiving state feedback method in terminal direct connection communication comprises the steps of receiving data sent by a sender terminal on a first time frequency resource for data receiving, and recording the data receiving situation; feeding the data receiving situation back to the sender terminal on a second time frequency resource for data sending so that the sender terminal can determine whether data need to be retransmitted or not according to the receiving situation. According to the technical scheme, the problem that in the prior art, due to the fact that a sender terminal sends the same data repeatedly, the sent resource utilization rate is low is avoided, the specification definition of a data retransmission mechanism in terminal direct connection communication is achieved, the terminal direct connection communication continuity is improved, and the requirement of a user for the D2D communication high-service quality can be met.

This invention belongs to a classification of service quality Broad Band wireless access network technology, its characteristics is that the service is divided into five categories and increase of variable-length packet, variable bit rate, real-time services fluctuations gentle flow; The sub-stations and base stations are made a detailed functional breakdown, the business services is established by admission control module to accept or reject IP layers; reading bandwidth allocation module with a wide range of services requested bandwidth connections with the quality of service parameters and distribution system available bandwidth, different sub-stations authorized obtained the total bandwidth; using uplink and downlink scheduling of the total bandwidth in accordance with its mandate and the necessary bandwidth, by service Priority service connecting the various dispatching through lower physical layer interface to send the media access control layer of data and control information. Not only satisfy a wide range of services connecting service quality requirements, but also take into account the unexpected increase in the data, increased fairness between sub-station and inter-connecting different priority-class service.

This invention discloses a method for transferring downlink signal by relay stations, which gets the down link quality between the mobile station and the relay stations to determine the relay set for transferring down signals based on the difference of the qualities, when the set includes multiple relay stations, it carries out empty time coding to the down signals by the relay stations in the set to be transferred to the mobile station. This invention also discloses a method for transferring down signal by relay stations including setting multiple relay stations for transferring down signals, getting the down link qualities between the mobile station and relay stations, determining relay station sets for transferring down signals according to the qualities of the relay stations and number of the relay stations, carrying out empty time coding by the stations in the set and transferring it to the mobile station.

This invention discloses a transfer method for medfia access control state in a radio communication system including the following steps: a base station measures all PRI queue service volumes or an engross rate of the buffer region of a user device at MAC layer and enquires the MAC state of said device in the base station, if it is an active state and the service volume of all service PRI queues or the occupation rate of the buffer region are lower than set threshold and continues the set time, then the MAC state corresponding to the user device in the MAC layer is transferred to a discontinuous sending / receiving state, and the synchronous control state of the MAC of said device is transferred to the MAC discontinuous sending / receiving state, if it is the discontinuous sending / receiving state and one or the service volume of multiple service PRI quiues or the occupation rate of the buffer region is higher than the threshold value, then, the MAC state in the base station layer is transferred to the MAC active state as well as the control state, otherwise, it keeps the original one.

The invention relates to a service flow access control and bandwidth allocation method based on an orthogonal frequency division multiplexing (OFDM) system, which mainly solves the problems of service flow access control and system bandwidth resource allocation in the OFDM system. The method of the invention essentially comprises the following steps: (1) carrying out access control according to the management information of dynamic service flow and generating a bandwidth-reserved distribution list; (2) distributing the bandwidth-reserved according to the bandwidth-reserved distribution list; and (3) distributing the rest bandwidth according to a weight factor configuration table. The method provided by the invention not only effectively improves the use efficiency of the system resources, but also ensures fairness among a plurality of service types and prevents 'starvation' phenomenon caused by that the bandwidth cannot be obtained due to the comparatively low priority of users.

The invention discloses a connection method of an Internet of Vehicles massive heterogeneous network with infrastructure in a city scene. The method comprises that firstly, on the basis of adjacent intersections, an intersection gateway build a forwarding path, namely a primary road network, for a target vehicle; on the basis of all possible primary road networks between a source vehicle and the target vehicle, the intersection gateway applies an Internet of Vehicles connection model to calculate and compare the connection possibility of each primary road network; the primary road network with the highest connection possibility is selected out as the forwarding path; the process of calculating the forwarding path is shown in an algorithm 1; and secondly, when the source vehicle receives the primary rod network expressed forwarding path sent by the intersection gateway, a data subgroup is forwarded; and an algorithm 2 specifically describes a data subgroup forwarding process. According to the method, the quality of service demand of an upper layer application can be satisfied; the approximate optimum solution of the connection model is solved by a genetic algorithm; and the forwarding paths demanded by the application program can be found out rapidly.

The invention relates to a robust beam forming method for intelligent reflector-assisted multi-cell coordinated multipoint transmission, which comprises the following steps: firstly, constructing a joint optimization problem of base station transmitting beam forming and intelligent reflector shift by adopting a bounded error model, simultaneously satisfying base station power constraint and user rate constraint, and minimizing total transmitting power; then, decoupling the problem into two problems of base station transmitting beam forming and intelligent reflecting surface shifting, converting the base station beam forming problem into a convex optimization problem by adopting an S-Procedure theorem and convex semi-definite relaxation, converting the intelligent reflecting surface shifting problem into an optimization problem with a clear target, and providing an algorithm based on a dichotomy; and finally, alternately iterating the transmitting beamforming problem and the phase shift problem until the optimization target is converged. According to the method, the total transmitting power can be minimized under the condition that the base station power constraint and the user target rate constraint are met, and the system performance can still be ensured even under the worst channel estimation condition.

The invention discloses a cloud computing task smart scheduling method and system, a readable storage medium, and a terminal. The method comprises the following steps: an intelligent cloud system receives a task processing request sent by an application layer, analyzes the corresponding to-be-processed task from the task processing request, decomposes the analyzed to-be-processed task into multiple corresponding sub-tasks to send to a virtual resource layer, and distributes the corresponding resources for multiple sub-tasks; the virtual resource layer is the information of the resource distributed to multiple sub-tasks, sends the received sub-tasks to an idle fog node nearby the sub-task location to process multiple sub-tasks, obtains the processing results of multiple sub-tasks and sendsto the intelligent cloud system; the intelligent cloud system receives the processing results of multiple sub-tasks and combines the same, thereby obtaining the corresponding processing result of theto-be-processed task, and sending the same to the application layer. Through the above scheme, the cloud computing task scheduling efficiency is improved in the premise of satisfying the quality of service demand, and the use experience of the user is improved.

The invention discloses a wireless resource distribution method and a device for orthogonal frequency division multiple access system, comprising the following steps: dividing orthogonal frequency multiple access intraframe blocks; collecting all the user information in current frame and information on service quality requirements of the users that accessed to the system; when respectively calculating the service quality requirement for meeting the need of the each user, respectively distributing a resource block pattern to the user continuously as the resource pre-distributive information ofthe user; and selecting the resource pre-distributive information of a plurality of users meeting the integrated performance requirement of the system for resource allocation. The invention has the advantages of ensuring continuous resource acquisition of each user in each frame during distribution of the wireless resource of orthogonal frequency division, enabling the base station terminal to manage the mapping relation between the resource and the user in a simpler way, reducing the received power of the user, increasing the capacity of the entire orthogonal frequency division system, ensuring the minimum rate requirement of the user, and facilitating the expansion to meet higher service quality demand.

The method includes following steps: packet with tag arrives to exchanger; device checks whether the source address of the packet is learned or not; if not, step of learning address is carried out, a address item is formed in the address list; otherwise, matching destination address of the packet is carried out; determining whether a address item is found or not; if yes, based on VLAN ID corresponding control item of service quality is searched; control of service quality is implemented for the packet, which is transmitted from the corresponding port; if no address item is found, based on VLAN ID, corresponding port set is found, then the packet is flooded. The invention can apply service quality control for specific user group, as well as control service quality for multiple groups of possessing the same need by a service-controlling rule.

An accounting method based on data packet is a technical scheme used in open network environment which adopting quasi dynamic method based on data packet to realize accuracy, justice and transparency of accounting. The organic combination of fine granularity accounting based on data packet and coarse granularity accounting based on flow considers fee of single data packet, transmission flow and network congestion, and realizes quasi dynamic accounting strategy of accounting according to flow, business and router congestion. The improved synthetically method described in the invention is proposed according to improvement and synthesis of existing static accounting that based on data packet. The accounting thinking is similar to automated toll charging on expressway. To distinguish with existing router, router herein is divided into backbone router and common router wherein backbone router means routers have great influence to network congestion and others belongs to common router.

The invention relates to a semantic consistency verification method of a semantic Web service combination, which belongs to the field of semantic nets and Web services. The invention is characterized in that the method is realized in a way that: establishing a storage unit of a semantic Web service coloring Petri net model, a parameter semantic consistency verification submodule, a QoS (Quality of Services) attribute consistency verification submodule and a consistency analytic result storage submodule on a computer; and analyzing the semantic consistency of the semantic Web service combination by using a coloring Petri net formalized verification method, wherein the semantic consistency comprises parameter semantic consistency and QoS attribute consistency. The invention can verify whether the semantic Web service combination is consistent in semantics and satisfies the demands of users for service non-function attributes.

The invention provides a multiservice transmission method for a physical layer component channel based on a bit level. The method comprises the following steps: A, dividing a physical layer channel at a symbol level according to service quality requirements of a plurality of services needed to be transmitted, so as to acquire a physical layer component channel at the symbol level; B, dividing the physical layer component channel of the symbol level at a bit level according to the service quality requirements of the plurality of services needed to be transmitted, so as to acquire a physical layer component channel on a bit layer; and C, using the physical layer component channel of the bit layer to transmit the corresponding service information. According to the multiservice transmission method disclosed by the invention, a bit with different protection degrees inside one symbol is subjected to physical layer component channels at different bit layers, so that service quality requirements of different services are satisfied more flexibly.

The invention provides a multi-service scheduling method. The method comprises the steps of dividing a user to be scheduled into a priority scheduling user set and a non-priority scheduling user set according to time delay and average speed of service and a pre-set priority scheduling condition; preferentially scheduling users in the priority scheduling user set and taking requirements of QoS (Quality of Service) as a target in a scheduling process; ensuring that the requirements of the quality of service of the users needing to be scheduled are met; and meanwhile, selecting a matched user in the prior scheduling user set aiming at the users in the prior scheduling user set; aiming at the users in the prior scheduling user set, if the QoS requirements are met after a resource is distributed, putting the users into the non-priority scheduling user set; and furthermore, aiming at the users in the non-prior scheduling user set, carrying out scheduling according to instantaneous throughput and the sum of the lengths of queues of all services, so as to optimize a system capacity under the condition of guaranteeing service requirements. With the adoption of the multi-service scheduling method, the transmission speed can be improved, the service requirements can be better met, and the system capacity is improved.

The invention discloses a cloud computing network resource distribution method based on service quality requirement drive. The method includes the steps that firstly, a cloud computing network central processing server is used for collecting a virtual resource use application of a user terminal; secondly, available resources of all nodes in a bottom layer network are collected; finally, a quantum immune method is adopted for distributing the virtual resources, and parameters of the quantum immune method and quantum coding vectors of all antibodies in populations are initialized; whether the coding vector of each antibody meets a flow conservation formula, a maximum capacity limit formula, virtual flow and bandwidth capacity limits and a resource distribution solution feasibility limit or not is tested; the expected reproduction probability of each antibody is determined, and a parent population and a memory bank population are extracted from the populations; a quantum rotating door operation method is adopted for obtaining antibodies in the new populations, and the antibodies are combined with antibodies in a memory bank to form new generation populations; repeating is performed, and the optimal solution of cloud computing network virtual resource distribution is output. Virtual resources can be efficiently used, and the service quality requirement for the user terminal can be guaranteed.

A method for processing multimedia value-added service message utilizes gateway device to retransmit all interworking message between SP and MMSC. The system for realizing said method comprises multimedia value-added service server, multimedia message center and gateway device. The said gateway device consists of MM7 protocol interface for carrying out information interworking between SP and MMSC, storage module for storing SP attribute information query module for making route query and core processing module for calling said module and interface to finalize right certification and message down-send treatment.

A method and a system for generating supply chain planning information are provided, which are used to dynamically adjust the control factors of the supply information provided by an original supplier and an original logistics provider, after the first supply chain planning information has been generated through a conventional supply chain planning information system, so as to generate much more supply information to process. Then, the information is processed by a planning engine of the supply chain planning information system to further generate other supply chain planning information among which to select in decision making. Hence, a decision maker can select and find out improved ways to negotiate with suppliers, so as to reduce the total cost and also meet customers' service quality requirements.

The present invention discloses a user connection and virtual resource distribution method for maximizing benefits of all service providers as a target. The method comprises: based on a benefit function, defining the users' and service providers' benefits; employing the Lagrange to perform dual to obtain necessary and sufficient conditions of optimal resource distribution in a mixing business scene; and employing a low-complexity method to perform iteration solution of a resource distribution result, and finally combining the resource distribution result. A user connection scheme is designed according to the greedy strategy, about a new user arrival condition, the new user selects the optimal base station for connection according to local information in the condition of keeping constant original user connection; and moreover, because the Lagrange dual and the heuristic idea, the user connection and virtual resource distribution method in the ultra dense heterogeneous network can reduce the number of iterations and computation complexity so as to rapidly find the resource distribution scheme.

The invention discloses a network selection method and system of a multimode terminal. The method comprises the following steps: a discovery step: a terminal receives base station related data broadcasted by a cellular network base station, and / or receives access point related data of a local area network access point; a selection step: the terminal pre-screens the base stations according to the base station related data, reserves the base stations meeting the base station basic access criterion, calculates base station access weight values of the reserved base stations according to the base station related data, and constructs a base station set of accessible terminals; and / or the access points are screened in advance according to the access point related data of the access points, the access points meeting the access point basic access criterion are reserved, the access weight values of the reserved access points are calculated according to the access point related data, and an access point set of accessible terminals is constructed; and an access step: the terminal selects at least one base station / access point for access from the base station set and / or the access point set according to the communication state data of the base station and the service quality data of the terminal, so that the spectrum utilization rate can be improved.

The invention provides an energy-efficient resource allocation method for use in a heterogeneous wireless network. The method comprises the following steps: initializing power allocation of mobile terminals; determining the energy-efficient bandwidth resource allocation of a radio access technology; determining energy-efficient power resource allocation of each mobile terminal; adjusting the transmitting power of the mobile terminals, and calculating an energy efficiency sum; and repeating the steps above till the value of the energy efficiency sum of the heterogeneous wireless network is maximum. According to the energy-efficient resource allocation method, the energy-efficient bandwidth resource allocation is calculated firstly, and the energy-efficient power resource allocation is determined according to the bandwidth resource allocation, so that the value of the energy efficiency sum of the heterogeneous wireless network is increased after each resource allocation. Then, the steps above are repeated till the value of the energy efficiency sum is converged, and energy-efficient co-allocation of bandwidth resources and power resources is achieved, so that the uplink energy efficiency of the whole heterogeneous wireless network is increased.

The invention provides a method performed at UE. The method comprises the steps of receiving a UL grant from a base station, wherein the UL grant comprises information related to uplink resources allocated by the base station for the UE; obtaining a priority sequence of a plurality of logical channels suitable for the uplink resources allocated in the UL grant and configured for the UE according to at least one of an uplink resource type, an uplink resource scheduling mode and an uplink resource transmission mode by the base station; if a BSR carried in an MAC CE does not contain cache state information of the logical channel with the highest priority, setting the priority of the MAC CE carrying the BSR to be lower than the priority of data from the logical channel with the highest priority; and sequentially assembling the data and the MAC CE into an MAC PDU according to the set priority sequence of the data and the MAC CE so as to carry out transmission on the allocated uplink resources. The invention further provides the corresponding UE, the base station and a computer readable medium.

The invention relates to a cognitive radio network transmission learning method for moderate business services. The method comprises the following steps: a step 1, collecting real-time business and priority information; a step 2, establishing a white space matrix and an interference matrix; a step 3, calculating a routing and a time delay according to a feasible action and a business transmission time of a node; a step 4, carrying out a distributed collaborative design of local information and a priority; a step 5, obtaining a degree of freedom of information exchange and a limiting condition of the degree of freedom; a step 6, carrying out self adaptation on multiple business applications via transmission collaboration and information exchange; a step 7, establishing spectrum switch according to distributed compulsory learning irrelevant to a model; and a step 8, checking whether user demands are satisfied according to quality of service. According to the cognitive radio network transmission learning method provided by the invention, the performance of diversity real-time demand business on a multi-hop cognitive radio network is improved by using the distributed compulsory learning irrelevant to the model, and the degree of freedom of information exchange is proposed to establish a comprehensive business data cross-layer management method, so that the entire work has business universality.

The invention discloses a channel resource allocation method based on greedy coloring of a directed hypergraph. The method comprises the following steps: establishing a channel resource allocation model with constraint conditions according to the interference condition and resource reuse characteristics of an NOMA enhanced cellular and D2D heterogeneous network and the service quality requirementof a communication link allowed to be accessed, then constructing a directed hypergraph according to the channel resource allocation model, the vertexes being cellular users and D2D clusters, and thedirected edges representing interference between communication links; and finally, performing orderly greedy coloring on the constructed directed hypergraph, adopting different colors to represent different channel resources, wherein a coloring result is a channel resource allocation result. According to the invention, a channel resource allocation model is established, a channel resource allocation problem is converted into an optimization problem for maximizing the system capacity, the constructed directed hypergraph more comprehensively and specifically represents accumulated interference and asymmetric interference between links, ordered greedy coloring is adopted, the coloring complexity is reduced, and more accurate and simpler allocation of channel resources can be realized.

The invention discloses a matching game-based separation multi-access method in an ultra dense heterogeneous network. The method is based on a user separation multi-access mechanism, that is, user equipment is allowed to access multiple base stations in uplink and downlink so as to enjoy services and transmit data. The invention provides a low-complexity matching game method based on a matching game theory. One or more base stations are selected for a user to connect according to quality of service requirements of the user, user utility in the network is maximized, further, actual needs of different users are met. The problem of user separation multi-access in the ultra dense network is solved through the matching game method, so that the user utility in the network is maximized and the quality of service requirements of different users are met. Compared with traditional exhaustive search and branch and bound methods, the method has the advantage of low complexity. The method represents a new possibility solving the problem of user multi-access in the ultra dense network.

The present invention relates to single connection based mobile stream media negotiation method. Said method includes establishing data connection between terminal and mobile network, terminal requesting stream media server playing certain media content, terminal and stream media server establishing media stream connection, terminal modifying available data connection, stream media server transmitting media stream to terminal. Stream media server feeds back media and conversation attribute information to terminal, terminal according to media and conversation attribute information modifying data connection, or terminal according to inner stored service quality parameter modifying data connection. The present invention realizes smooth switching stream media data connection between 2 G and 3 G network.

The invention discloses a layer 3 connected route backup method, which comprises: a backup route generation step used for generating a backup route by using a connected route from a node A to a node B; a backup route switching step used for switching service traffic from the node A to the node B onto the backup route for forwarding when the connected route fails; and a new route switching step used for switching the service traffic from the node A to the node B onto a new route for forwarding when the convergence of the route from the node A to the node B is finished to generate the new route. By the method, the rapid switching of layer 3 interface connected route can be realized under the condition of ensuring the invalidation of a layer 3 interface to meet the requirements of a client on protection switching performance. The invention correspondingly provides a layer 3 interface connected route backup system, which comprises a backup route generation module, a backup route switching module and a new route switching module.

The present invention discloses a two-way service proxy model suitable for improving the quality of service of a communication network. The two-way service proxy model includes network proxies, two-way services and a two-way service access point; the network proxy is an entity that can perform specific tasks and block the specific details of the network and is used for sensing the requirements of a user for network service quality and responding accordingly; the two-way services are services provided between the network proxies in two directions simultaneously; and the two-way service access point is the abstraction of the two-way services and the extension of a service access point, is a logical interface and is responsible for communication between the network proxies. The two-way service proxy model suitable for improving the quality of service of the communication network is based on the two-way services and the network proxies, and therefore, the two-way service proxy model is different from a traditional model according to which only a lower layer can provide services for an upper layer in a layer-based network; the network proxies can intelligently sense the network service quality requirements of the user, can be compatible with a current network, and can fundamentally improve the quality of service on the network.

The invention provides a load balancing method for a heterogeneous wireless network, which comprises the steps of: 1, generating a population, wherein the population comprises a plurality of individuals, and each individual is used for indicating each user in a wireless network range whether to access a cell; and 2, executing a genetic algorithm on the population so as to generate a population which meets the population fitness requirement. The method further comprises the steps of: executing an annealing algorithm on the population so as to generate a population which meets the annealing fitness requirement. According to the method provided by the invention, by increasing a selection probability of poor-quality population individuals, a probability of selecting a locally optimal solution is reduced, and algorithm complexity is reduced to a certain degree.