71results about How to "Satisfy quality of service" patented technology

An apparatus for facilitating handover failure recovery may include a handover management element configured to receive, at a target node, a handover request from a source node regarding the handover of communications with a mobile terminal. The handover request may include identity information indicative of the mobile terminal. The identity information may be the identity information used to identify the mobile terminal to the source node during establishment of the original connection between the source node and the mobile terminal. The handover management element may be further configured to receive a request for a connection from the mobile terminal subsequent to a radio link failure and prior to handover completion. Based on matching the identity information from the request for connection and the identity information received from the source node, the target node may establish communication with the mobile terminal based on access stratum configuration information used by the source node.

An apparatus and method for UpLink (UL) radio resource allocation in a wideband wireless communication system are provided. In a method of operating a Relay Station (RS) for UpLink (UL) radio resource allocation in a wideband wireless communication system, the method includes relaying to a Base Station (BS) a resource request message of at least one or more Mobile Stations (MSs); receiving data from the at least one or more mobile stations; if the received data is non-real time traffic, queuing the data received from the mobile stations according to a traffic type; and requesting the base station to allocate necessary radio resources by checking a queue status. Accordingly, a delay can be reduced when the UL resource is allocated to an relay station for real time traffic.

A method and apparatus are disclosed that seek to improve the quality of service that is experienced during the transmission of a stream of packets across one or more paths. In particular, a transmitting node encodes a source stream of data (e.g., audio, video, etc.) into one or more sub-streams, and distributes those sub-streams onto multiple network transmission paths. In accordance with the illustrative embodiment of the present invention, the transmitting node evaluates the quality of service of a first network path that fails to provide a quality-of-service guarantee. When the quality of service of the first network path becomes unsatisfactory, the coding of one or more sub-streams that are being transmitted on a second network path is adjusted. In other words, the coding on a second channel is adjusted in response to the changing conditions on a first channel.

A timeslot selection method is provided. The timeslot selection method includes the steps of: obtaining a propagation loss; receiving an occupation state and an interference amount of an uplink timeslot; obtaining a desired wave power from the propagation loss; obtaining a ratio between the desired wave power and the propagation loss for the uplink timeslot in which the occupation state is idle; and selecting the transmitting timeslot by using the ratio. In addition, a timeslot assignment method in which there are a plurality of TDD boundaries each of which is a boundary between at least an uplink timeslot and at least a downlink timeslot in a frame is provided. Furthermore, a timeslot assignment method is provided, in which assignment is carried out according to a service class included in a QoS request.

A method that seeks to provide a satisfactory quality of service for a stream of packets through a network. The illustrative embodiment of the present invention seeks to provide a satisfactory quality of service for a stream of packets by periodically or sporadically evaluating one or more alternative paths through the network and by sending the packets through a path with an acceptable quality of service. Normally, neither the source node nor any other node in a packet's path controls its route after it has left the node. In contrast, the illustrative embodiment of the present invention has the capability to affect the packet's path through the network by sending the packet to an intermediate or “ricochet” node in the network, which forwards the packet to the destination node. In effect, the source node can, if it deems appropriate, ricochet the packet off of the intermediate node rather than allowing the packet to take its normal direct path through the network.

A method for transmitting uplink data according to a dynamic resource request is disclosed. The method includes confirming, at a mobile station, whether a service type for a bandwidth request is sensitive to delay, if the service type is not sensitive to delay, shifting a phase of a fast feedback channel and transmitting the phase-shifted fast feedback channel, if the service type is sensitive to delay or if a bandwidth request grant message corresponding to the phase-shifted fast feedback channel is received from a base station, transmitting a bandwidth request information corresponding to the service type to the base station, and upon receiving an uplink grant message for an uplink resource according to the bandwidth request information from the base station, transmitting data though the uplink resource. As a result, collision does not occur during a resource request, quality of service (QoS) of a real-time traffic sensitive to delay can be satisfied, an uplink allocation request procedure is dynamically changed according to a service type, thus reducing message overhead, and a resource can be efficiently used according to a characteristic of a service provided to the mobile station.

A timeslot selection method is provided. The timeslot selection method includes the steps of: obtaining a propagation loss; receiving an occupation state and an interference amount of an uplink timeslot; obtaining a desired wave power from the propagation loss; obtaining a ratio between the desired wave power and the propagation loss for the uplink timeslot in which the occupation state is idle; and selecting the transmitting timeslot by using the ratio. In addition, a timeslot assignment method in which there are a plurality of TDD boundaries each of which is a boundary between at least an uplink timeslot and at least a downlink timeslot in a frame is provided. Furthermore, a timeslot assignment method is provided, in which assignment is carried out according to a service class included in a QoS request.

The invention discloses a multi-tenant performance isolation framework based on a virtualization technology. The isolation framework consists of a performance isolation subsystem, a dynamic resource manager, a virtual machine monitor, a virtual machine and a system resource pool. A method for erecting the isolation framework comprises the following steps: constructing a VM for each tenant by the virtualization technology, wherein the VM defines a boundary of logic resources of the corresponding tenant, and pre-distributing virtual resources for initializing the VM by adopting a virtual resource based on a tenant SLA; then monitoring and managing the service performance of each tenant under a logic isolation state, and controlling a response time boundary of each tenant by an access control mode; and finally, monitoring a service condition of each tenant, and implementing dynamic adjustment on the virtual resources of the tenants and maximization of total resource utilization. The performance isolation among all the tenants can be effectively guaranteed, and the service quality of the multiple tenants can be met; the reasonability of the resource use of all the tenants is realized, and the satisfaction degree of the tenants to the service is improved.

A method for allocating radio resource to one or more first UEs by a femto BS, includes: acquiring information about one or more second UEs which are located within a cell coverage of the femto BS but served by the macro BS; receiving a control channel from the macro BS; acquiring radio resource information allocated to the second UEs by the macro BS from the control channel; and allocating radio resource to the first UEs such that the allocated radio resource does not overlap with radio resource information allocated to the second UEs.

An access and synchronizing method of mobile terminal in wireless LAN is characterized by that a direct sequence spread spectrum (DSSS) technique is used, in which a large area synchronizing (LAS) code as high-efficiency spread spectrum code can be used as sector ID, synchronizing code, access code, or spread spectrum code, and includes LA codes and LS codes. Said LAS code has features of zero interference window and low multi-address and multi-path interferences. Its access method is characterized by that the dynamic CDMA and TDMA are combined for simplifying the scheduling calculation of AP.

A method for managing radio resource of a femto cell includes: providing, by the femto cell, a service to one or more UEs by using most of pre-set radio resource; receiving measurement results from the one or more UEs; determining whether or not one or more neighbor femto cells are closely located nearby based on the measurement results; and if it is determined that neighbor femto cells are closely located nearby, reducing the pre-set radio resource into a small radio resource and providing a service with the small radio resource.

The invention relates to an online optimized scheduling method for workflow groups with deadline constraint in a mixed cloud environment. The method comprises the steps of: preferentially processing a workflow smallest and longest load capacity according to space-time correlations of workflows arriving in real time and a limit characteristic of the private cloud processing capability, increasing the workflow completion rate, and reducing the data transmission cost; based on characteristics of the workflows, dividing tolerance time for the deadlines in an equal-weighted manner according to subtask weights so as to meeting the requirements of deadline constraint and service quality; utilizing a greedy choice strategy to searching for a suitable example lowest in subtask execution cost increment on line, and further reducing the execution cost; and according to the characteristics of the mixed cloud environment, designing an integral mapping scheme from the workflows to the execution examples, and ensuring that the service quality of the workflows are met on line and the execution cost is simultaneously lowered. On the premise that the requirements of the deadline constraint of existing practical workflow groups are met, the online optimized scheduling method is capable of effectively improving the completion rate of the workflow groups, and the execution cost is substantially lowered.

The invention provides a distributed cloud system based on fused unified computation. According to the system, mutual borrowing and utilization and fused unified scheduling of resources of geographically dispersed cloud data centers in a distributed cloud system can be achieved, and intracloud resource fusion and unified scheduling of the distributed cloud system can optimize operating efficiency of the distributed cloud system, so that a resource utilization rate of the distributed cloud system can be improved while the user requirement on quality of service is met, and the operating cost of the whole system is reduced. Furthermore, fusion of computing capabilities of the distributed cloud system and accessed client or terminal equipment can also be achieved by using a redirection technology. According to the system, a utilization rate of computing resources of a client and a server are furthest improved, and diversity of applications in a cloud virtual machine and compatibility to the applications are increased without influencing using habits of a user, and assurance on quality of service with higher quality is provided for the user.

The invention discloses a method for realizing uplink QoS (Quality of Service) based on an IP access network and a multi-service access gateway. The method comprises the following steps: the multi-service access gateway judges whether the uplink flow flowing through each link node exceeds the uplink early-warning threshold of each link node according to the uplink early-warning threshold of multiple link nodes on the uplink from a client to the multi-service access gateway; and the multi-service access gateway reduces the flow of the uplink low priority service so as to ensure the QoS of the uplink high priority service flow at the client if the uplink flow of any one link node flowing through multiple link nodes exceeds the uplink early-warning threshold of any one link node. The invention can effectively prevent congestion of the uplink and satisfy the quality of service of the uplink flow of the high priority service at lower reformation and cost.

The invention discloses a reconfigurable intelligent surface assisted NOMA (Non-Orthogonal Multiple Access) downlink low-power transmission method. On the premise of ensuring the signal to interference plus noise power ratio requirement of the user, establishing an optimization problem of base station power distribution and RIS phase deviation; establishing a conversion relation between the powerdistribution coefficient and the RIS phase deviation factor by utilizing the characteristics of the optimization problem, and converting the original optimization problem into a pure phase deviation optimization problem; further simplifying the optimization problem by using a phase-by-phase rotation method, and solving the optimal phase offset of each iteration through a one-dimensional search andpenalty function method; and repeating iteration until the target function converges to obtain an optimal phase shift matrix of the RIS and a base station power distribution coefficient. Compared with a traditional orthogonal multiple access transmission scheme, an RIS-free transmission scheme, an RIS random phase offset transmission scheme and an RIS equal phase offset transmission scheme, the transmission method provided by the invention can significantly reduce the total emission power consumption of the system.

The invention discloses a data packet processing method based on token bucket algorithm. The data packet processing method comprises the following steps: setting token buckets C, P and B with the current token numbers of TC, TP and TB respectively; receiving a data packet with X bytes; setting the data packet to red if the data packet is red; determining whether TB is less than X if the data packet is blue and, if so, setting the data packet to red, otherwise, setting the data packet to blue and reducing X from TC, TP and TB; determining whether TP is less than X if the data packet is not red nor blue and, if so, setting the data packet to read, otherwise, setting the data packet to yellow if the data packet is yellow, and reducing X from PX; and determining whether TC is less than X if the data packet is green and, if so, setting the data packet to yellow and reducing X from TP, otherwise, setting the data packet to blue, and reducing X from TC and TP. The invention further discloses a data packet processing method based on the token bucket algorithm.

The invention discloses a system and a method for transmitting low interception signals, which are suitable for a high-throughput and delay sensibility wireless network that mainly uses burst service. The system and the method are used for splitting a message group in the traditional group wireless network into a series of even and short data sub-blocks and defusing the grouping conflict into thecollision among a plurality of few sub-blocks by frequency hopping and time hopping two-dimensional pseudo-random modulation, are combined with channel coding with good deletion performance to realize the full-duplex transmission of emission and multi-path reception, not only increases channel utilization rate and network throughput, but also have good anti-interference and low-interception performance; meanwhile, by combining an asynchronous competitive channel access system, the system and the method are not only capable of avoiding a complicated resource scheduling algorithm and reducing channel access time delay, but also can satisfy multi-user access at the same time; finally, the system and the method can slowly reduce the throughput of an overload network, avoid the systemic breakdown caused by overload and increases the network robustness.

The invention discloses a method for solving downlink NOMA (Non-orthogonal Multiple Access) minimized power of a visible light communication system. According to the method, an NOMA system model is established, a downlink NOMA user rate closed expression in the visible light communication is derived according to features of signals in the visible light communication system, the user quality of service is satisfied, and moreover, the transmitting power is minimized, so energy conservation and emission reduction demands in a mobile communication technology are satisfied. Compared with frequency division multiplexing, the method has the advantages that a user sum rate is maximized, moreover, the consumed transmitting power is minimum, and the user quality of service is ensured.

The invention discloses a multi-service transmission method based on physical layer sub-channel division. The method comprises the following steps: S1, dividing a physical layer channel into one or more symbol-level physical layer sub-channels in the time domain, the frequency domain and the space domain with constellation mapping symbols as the unit of division according to system parameters and a first service requirement of services; dividing each symbol-level physical layer sub-channel into one or more bit-level physical layer sub-channels in the time domain, the frequency domain and the space domain with the bits in the constellation mapping symbols as the unit of division according to a second service requirement of the services; S3, using each bit-level physical layer sub-channel to carry information of the corresponding service; and S4, transmitting the constellation mapping symbols of all the symbol-level physical layer sub-channels.

The invention discloses a selection method of distributed QOS (Quality of Service) routes, which comprises the following steps of: (1) marking a DSCP (Differentiated Services Code Point) value for a subgroup according to the service type of the subgroup, sending a plurality of explorer packets with the same request number to a middle node at the same time, and starting the parallel search of parallel routes; (2) judging the type of the arrived explorer packets by the middle node, and specifically processing the explorer packets; and (3) creating an explorer packet buffer list by a target node according to the subgroup condition of the arrived explorer packets, and realizing the storage and the reservation of the parallel routes. The routing method can meet the varying requirements of the multimedia service, not only has the advantages of simple distributed route algorithm and low link expense, but also can reduce resource fragments produced when the network is heavily loaded so as to accept more services.

Provided is a method for forming a customized-quality integrated transport network based on synch and asynch frames, and a transport network forming apparatus thereof. The method of the present invention includes: a) synchronizing a transmission bit rate in a network; b) when the transmission bit rate is synchronized in the network and a connection request is received, establishing a connection by determining a route and a start cycle time of the link based on a quality of the connection request and transporting it to nodes of the link; and c) transmitting data to be transported to a link of an adjacent node within the virtual cycle time when the data are synch frames; or when the data are asynch frames and the data are not transmitted within a virtual cycle time of a link to be switched, keeping the data waiting for a next cycle time.

A method of transmitting and receiving uplink data using transmission of profile indexes is disclosed. The method of includes transmitting, at a mobile station, any one of codewords mapped to a plurality of bandwidth request profiles according to a service characteristic to a base station through a fast feedback channel, and upon receiving an uplink grant message for an up-link resource allocated in correspondence to the codeword from the base station, transmitting data though the uplink resource. As a result, collision does not occur during a resource request, quality of service (QoS) of a real-time traffic sensitive to delay can be satisfied, an uplink allocation request procedure is simplified thus reducing message overhead, and a resource can be efficiently used according to a characteristic of a service provided to the mobile station.

An apparatus for facilitating data forwarding at handover may include a processor configured for issuing, from a source node, a handover request to a target node for handing EPC over communications with a mobile terminal from the source node to the target node, receiving acknowledgement of the handover request, and forwarding data to the target node prior to communication of a handover command to the mobile terminal.

One or more embodiments of the present specification provide a resource allocation method and device based on a blockchain network slice agent. The method comprises the steps of: enabling a network slicing agent to receive a resource request sent by a target slicing tenant; determining a target response slice tenant based on the resource request; deploying a smart contract based on a block chain based on the resource request, the target slice tenant and the target response slice tenant; and allocating network resources based on the intelligent contract. According to the implementation mode, resource allocation is carried out through the blockchain-based smart contract deployed based on the resource request sent by the user, the target slice tenant and the target response slice tenant and the deep reinforcement learning algorithm, so that the time delay and the calculation cost of the system are minimized on the premise of meeting the service quality of the network slice tenant.

The invention discloses a 5G base station microgrid optical storage system capacity optimization configuration method based on energy sharing, and belongs to the technical field of optical storage system capacity optimization. The 5G base station microgrid optical storage system capacity optimization configuration method comprises the steps of: 1, analyzing operation and power generation characteristics of a 5G base station microgrid, including a base station load space-time characteristic model, a base station micro-grid operation characteristic based on a dormancy mechanism, a photovoltaic power generation model and a base station backup battery energy storage model; 2, establishing a double-layer model of an outer-layer model and an inner-layer model in energy storage configuration based on energy sharing; and 3, solving the double-layer model established in the step 2. According to the 5G base station microgrid optical storage system capacity optimization configuration method, the utilization rate of the photovoltaic and 5G base station standby battery can be improved, the capability of the 5G base station participating in peak clipping and valley filling of the power grid is improved, meanwhile, the 5G electric power expense is reduced, the upgrading and reconstruction of the power grid are delayed, and mutual benefit and win-win between a 5G operator and the power grid are achieved.

The invention discloses a channel state judgment method based on a frequency hopping and time hopping pattern under a self-organizing network, and belongs to the field of wireless network communication. The invention aims to solve the problem of reducing the algorithm complexity while reducing the time delay and improving the throughput. Aiming at the fully-connected self-organizing network, a physical layer adopts a frequency hopping and time hopping technology for sending, and m frequency points are provided in total; based on non-overlapping frequency hopping and time hopping patterns, q patterns are fixedly distributed to each node in advance, and the pattern is taken as a unit in sending and receiving of the nodes; wherein each pattern corresponds to one time-frequency matrix, the split physical pulse is mapped into the time-frequency matrix to obtain a sending form of the physical pulse, and determining whether to send is performed according to a channel load state: when the channel load statistical value is smaller than a priority threshold, the channel state is a light load state, and sending can be carried out; otherwise, the channel is overloaded, and the node withdraws.The method is mainly used for judging the channel state.

The invention discloses a differential privacy-based location privacy protection method for guaranteeing the quality of service. The method comprises the following steps of: (1) setting a maximum location deviation distance value dQ allowed by a user for guaranteeing the sevice quality; (2) determining an upper bound value of a scale parameter b for performing Laplace noise addition on the user position information according to a service quality set value required by the user; (3) setting a minimum position deviation distance value dP required by the user for keeping position privacy; (4) determining a lower bound value of a scale parameter b for performing Laplace noise addition on the user position information according to a position privacy set value required by the user; and (5) enabling the user to select the noise parameter values b in the ranges of the upper bound and the lower bound obtained in the step (2) and the step (4), add Laplace noise under the parameters to the real position information, and publish pseudo position information. According to the method, the requirements of the user for the service quality and the location privacy are met at the same time, so that the user can ensure the enjoyed location-based service quality under the condition of not revealing the location of the user.