104results about "Error prevention" patented technology

A network is provided herein comprising a plurality of network resources, and at least one network cluster having a plurality of cluster members. Each member of the cluster may be configured for utilizing one or more of the network resources and for tracking usage thereof. For example, each member of the cluster may include one or more token buckets for tracking that member's usage of the network resources. At least one member of the cluster (i.e., a “reservation coordinator”) may include a first set of computer-executable instructions for receiving network traffic destined for a particular network resource at a first rate (i.e., a maximum average sustained rate). In addition, the reservation coordinator may include a second set of computer-executable instructions for distributing the first rate among at least a subset of the cluster members. In some cases, each member of the cluster may include a third set of computer-executable instructions for changing how the first rate is distributed among members of the subset. For example, the third set of computer-executable instructions may include instructions for attempting to reserve a substantially larger or smaller portion of the first rate.

A method (and system) for managing and controlling allocation and de-allocation of resources based on a guaranteed amount of resource and additional resources based on a best effort for a plurality of customers, includes dynamically allocating server resources for a plurality of customers, such that the resources received by a customer are dynamically controlled and the customer receives a guaranteed minimum amount of resources as specified under a service level agreement (SLA).

A wireless ad-hoc network for transmitting packets to target regions, and a packet transmission method thereof, are provided. The ad-hoc network includes at least one relay node for receiving a packet containing location information of at least two target regions each including at least one node, separating the received packet by the location information, forming a new packet for each instance of the location information separated from the received packet, and forwarding the new packets to corresponding target regions; and a source node for generating the packet containing the location information and transmitting the packet to the relay node. The present invention can reduce the packet transmission overhead, the packet transmission delay, and the power required for the packet transmission. Therefore, the packets can be delivered to the target regions in an efficient manner.

A node apparatus for a ring network arranged in a multi-ring formation includes a routing table that defines relationships between a receiving physical line identifier with port number and a sending physical line identifier with port number for virtual ring bypass routes, the relationships being individually provided for respective transmission lines connected to the node apparatus. A detection unit detects, at a time of detection of a failure, each of the relationships from the routing table to determine a transmission line to which a switching request is sent. The detection unit detects, at a time of relaying, each of the relationships from the routing table to determine a transmission line to which one of a switching request and a switching response is sent. The detection unit detects, at a time of receiving of a switching request, each of the relationships from the routing table to determine a transmission line to which a switching response is sent.

Techniques that assist in processing of failure detection protocol (FDP) packets. Techniques are provided that assist a CPU of a network device in processing incoming FDP packets. In one embodiment, a module is provided in a network device for detecting and flagging the non-receipt of FDP packets by the network device for one or more FDP sessions. In this manner, the task of detecting non-receipt of FDP packets is offloaded from the CPU of the network device. This enables the network device to support newer FDPs with shorter periodic interval requirements.

A storage device comprising has a storage medium, a read-write mechanism, an object-based file system interface, and a controller. The read-write mechanism is adapted to read and to write data from and to the storage medium. The object-based file system interface within the storage device is adapted to organize and access data on the storage medium as objects and to access attributes of each data object. The controller is adapted to generate redundancy data for each data object to be stored on the storage medium according to the associated attributes and to store the data object and its associated redundancy data on the storage medium.

A distributed LSR sends data from a first edge LSR, across a non-MPLS network, to a second edge LSR, thereby enabling a non-MPLS network to interface transparently with MPLS networks. This enables a VPN to use a public network to communicate from one portion of the network to another, remote portion. The distributed LSR includes an ingress gateway logically positioned between the first edge LSR and the non-MPLS network. This ingress gateway receives label requests from the first edge LSR. These label requests are multicast to several egress gateways. At least one egress gateway sends a message back indicating that it can transmit data to the destination. In response, the ingress gateway designates that egress gateway to be a designated gateway. The egress gateway then establishes a tunnel through the non-MPLS network to the ingress gateway.

In a method of measuring packet loss, a flow of packets is identified at first and second locations in a network. The packets in the flow are counted at each of the first and second locations to provide first and second packet counts, respectively. When a trigger packet in the flow is identified at each of the first and second locations, the first and second packet counts are latched to provide latched first and second packet counts corresponding to same packets in the flow. The latched first and second packet counts are compared to measure packet loss between the first and second locations.

The present invention relates to a method, terminal device, network element, system and computer program product for handling measurement reports in a communication network. At least two different levels of measurements reports (15) are provided, wherein each of the at least two levels corresponds to a different amount of resource blocks on which the measurement reports are based. The level of a received measurement report (15) is detected and a compensation offset is selected based on the detection result and applied to the measurement report. Thereby, measurement errors and biases of the measurement reports can be dynamically corrected in multi-level reporting schemes.

The invention discloses a method and a device for cooperative transmission. The method comprises the following steps: reporting signal measurement results by a terminal; determining the cooperative transmission state of the terminal according to the signal measurement results; and providing transmission service for the terminal according to the determined state. Compared with the prior art, the invention can be applied to effectively complete the cooperative transmission of multiple communities and to improve the throughput of the edge user.

A passive optical network (PON) including an optical line termination (OLT) and a plurality of optical network units (ONUs) which are connected. The optical line termination includes a band setting control section; an upstream control cell receiving section; a use right transmitting section; and a downstream control cell transmitting section. Each of the plurality of optical network units includes a downstream control cell receiving section; a use right acquisition determining section; and an upstream control cell transmitting section.

The invention discloses a baud rate adaptive method for a universal asynchronous receiver/transmitter (UART), a device and the UART. The method comprises a step of measuring the width of the initial bit pulse of a received asynchronous serial signal with a preset clock cycle as a unit and obtaining the number of preset clock cycles in the initial bit pulse, wherein the preset clock frequency is N times of the least common multiple of all optional baud rates of a sending party, and N is a positive integer; a step of dividing the preset clock frequency by the number to obtain the transmission baud rate of the received asynchronous serial signal, a step of taking the transmission baud rate as the baud rate of the received asynchronous serial signal to receive the asynchronous serial signal. According to method, the device and the UART, the width of the initial bit pulse is measured through the preset clock cycle, the duration of the initial bit pulse is obtained, thus the baud rate of the asynchronous serial signal sent by the sending party can be obtained, and the asynchronous serial signal can be correctly received through an asynchronous receiving and sending transmitter with the transmission baud rate.

The present invention discloses a Discontinuous Reception (DRX) parameter configuration method for facilitating Automatic Neighbor Relation (ANR) measurement. The method comprises determining a traffic intensity of a User Equipment (UE) by which a DRX-based ANR measurement is to be performed. The method further comprises setting a value for a DRX parameter to be used by the UE to perform the DRX-based ANR measurement, in accordance with the determined traffic intensity of the UE. The method further comprises transmitting the value set for the DRX parameter to the UE. The present invention further provides an associated BS adapted to perform DRX parameter configuration to facilitate ANR measurement.

Provided is a high-fidelity quantum network coding method based on controlled teleportation. The method comprises eight steps and is characterized in that based on a pre-shared entanglement pair quantum network coding protocol, two control terminals are added to control decoding of two destination nodes respectively, and perfect transmission with the fidelity of 1 is achieved; a quantum network coding model is established by using the controlled teleportation, one control terminal is added based on source nodes and the destination nodes, the fact that the source nodes and the control terminals share the GHZ state of three particles is ensured, the entanglement state is used as a quantum channel for transmitting a one-particle state, and the fact that the destination nodes will not carry out the decoding on received quantum states till the condition that measuring information of the control terminals is received is met is achieved. The high-fidelity quantum network coding method based on the controlled teleportation takes advantage of the special characteristics of teleportation of quanta, improves safety of the quantum network coding, and has wide application prospect in the technical field of communication networks.

In a mobile communication system in which a plurality of component carriers are used, transmitting and receiving control information of HARQ effectively is realized. In a mobile communication system in which a base station apparatus (100) sets a plurality of downlink component carriers for a mobile station apparatus (200), the base station apparatus (100) transmits a downlink transport block to the mobile station apparatus (200) on one or a plurality of downlink component carriers among the plurality of downlink component carriers, and the mobile station apparatus transmits, to the base station apparatus (100), control information of HARQ for the downlink transport block on any one of physical uplink control channel resources corresponding to the one or plurality of downlink component carriers on which the downlink transport block has been transmitted.

An Forward Error Correction (FEC) apparatus and method for reducing Bit error rates (BER) and Frame Error Rates (FER) using turbo decoding in a digital communication system. In a constituent decoder for decoding a turbo code, a first adder calculates the LLR of a received code symbol by calculating the difference between the probability of the code symbol being 1 and that of the code symbol being 0 at an arbitrary state of a turbo decoding trellis. A second adder adds the transmission information and a priori information of the code symbol. A third adder calculates the difference between the outputs of the first and second adders as extrinsic information. A first multiplier multiplies the output of the third adder by a predetermined weighting factor as a feedback gain. A correction value calculator calculates a correction value using the difference between the best metric and the second best metric of the code symbol. A fourth adder adds the correction value to the output of the first multiplier.

A session identification unit (11) determines a session to which an incoming packet belongs, while a session relay unit (12-1-12-N) relays between a session with a transmission terminal and a session with a reception terminal. A packet scheduler (13) instructs and controls the delivery of packets from each session relay unit (12-1-12-N), and a delivery control unit (14) delivers packets from each session relay unit (12-1-12-N) based on the instruction. In the session relay unit (12-1), a transmission session processing unit (121-1) processes a session for transmitting data to the reception terminal, and a transmission buffer (122-1) stores received data until the end of a transmission. A reception session processing unit (123-1) processes a session for receiving data from the transmission terminal.

A loopback test to test a communication link for a layered interface where in a master agent programs the electrical parameters for the slave agent, such as, the offset, timing, and current compensation with a loopback control register. The slave agent's transmitter and receiver are independently controlled and the master agent may use a slave-echoed data test pattern to detect errors and subsequently sets the appropriate status bits in a loop back status register

The present invention discloses a method and a device for transmitting data. According to the technical solution provided by the present invention, no actual end-to-end multi-bearer connection is established between a terminal and a network side, but the terminal, when locally transmitting a data packet, simulates a multi-bearer mechanism to establish multiple virtual service channels on a bearer and performs priority-based scheduling between the service channels. Through virtual multi-bearer, the present invention can balance service QoS with resource utilization under the condition that the network or the terminal does not support the multi-bearer capability or the multi-bearer capability is restricted.

The invention discloses the transmitting and receiving method for mobile digital multimedia broadcast physical layer signaling message. Wherein, the transmission method comprises: mapping the signaling message on the idle data sub-carrier or both the continual pilot frequency and idle data sub-carrier, and modulating former sub-carrier or both continual pilot frequency and sub-carrier in OFDM signal for transmitting. The receiving method comprises: receiving OFDM signal to demodulate the idle data sub-carrier or both the idle data sub-carrier and continual pilot frequency; hereby, obtaining the signaling message. This invention improves transmission efficiency, saves system resource, and reduces decoding complexity.

The invention discloses a method and a device for realizing gateway remote multi-activity, computer equipment and a storage medium, and the method for realizing gateway remote multi-activity comprisesthe following steps: receiving a request address sent by a client, wherein the request address comprises a first IP address, and the first IP address corresponds to a local data center; accessing a first gateway of the local data center according to the first IP address, and judging whether the first gateway is in an available state or not; if the first gateway is in an unavailable state, determining a remote data center with the highest priority from the rest of available remote data centers according to a predetermined priority strategy; and accessing a second gateway of the remote data center with the highest priority, and calling a backup link between the remote data center with the highest priority and the local data center. The method for realizing gateway remote multi-activity solves the technical problem that a calling party cannot access service resources of a machine room where a service party is located when an application of the machine room where the service party is located goes wrong.

The invention discloses a mixed modified weighted bit-flipping LDPC decoding algorithm. The mixed modified weighted bit-flipping LDPC decoding algorithm comprises a first step of initializing a decoder and measuring and calculating parameters, a second step of calculating syndromes of a check matrix, wherein if all syndromes are zero, the decoding is successfully achieved and then the process is finished and if not all syndromes are zero, a third step is carried out, the third step of calculating the judgment standard value En1 of a main algorithm and the judgment standard value En2 of an auxiliary algorithm according to the parameters of the first step and a verifying result of the second step, a fourth step of defining a bit corresponding to the position p as an error bit according to the judgment standard value En1 of the main algorithm and defining a bit corresponding to the position q as an error bit according to the judgment standard value En2 of the auxiliary algorithm, a fifth step of rectifying the bit corresponding to the position p and the bit corresponding to the position q at the same time or only rectifying the bit corresponding to the position p, and a sixth step of repeating the second step to the fifth step, wherein when the decoding is successfully achieved or a maximum number of iterations is reached, the iteration is stopped, and a decoding sequence is output. The mixed modified weighted bit-flipping LDPC decoding algorithm has the advantages that the decoding property is good, computation complexity is low, and hardware is easy to achieve.

The present invention relates to a method for defining, in a TDD wireless communication system in which broadband is configured by means of carrier aggregation, transceiving timing for a data channel and a control channel when cross-carrier scheduling is implemented.

A method of determining an angle by an encoder includes generating a first angle data based on a rotation of a bipolar magnet and a second angle data based on a rotation of the multipolar magnet; determining a first waveform signal based on the first angle data and a second waveform signal based on the second angle data; converting the first waveform signal into a third waveform signal having a cycle similar to the second waveform signal; calculating an angle result value as a function of the second angle data and a determined value about a location of a rotation cycle of the multipolar magnet based on a difference between the second waveform signal and the third waveform signal; and determining an absolute angle corresponding to the calculated angle result value based on stored angle data.