107 results about "Data transfer scheduling" patented technology

An architecture and related systems for improving the performance of non-blocking data switching systems. In one embodiment, a switching system includes an optical switching core coupled to a plurality of edge units, each of which has a set of ingress ports and a set of egress ports. The switching system also contains a scheduler that maintains two non-blocking data transfer schedules, only one of which is active at a time. Data is transferred through the switching system according to the active schedule. The scheduler monitors the sufficiency of data transferred according to the active schedule and, if the currently active schedule is insufficient, the scheduler recomputes the alternate schedule based on demand data received from the edges/ports and activates the alternate schedule. A timing mechanism is employed to ensure that the changeover to the alternate schedule is essentially simultaneous among the components of the system.

A method and apparatus for scheduling uplink data transmission for a UE in a mobile communication system supporting an uplink packet data service are provided. A serving Node B and at least one non-serving Node B are included in an active set of a UE located in a soft handover region. The UE receives a dedicated scheduling grant from the serving Node B by dedicated scheduling and a common scheduling grant from the at least one non-serving Node B, controls an uplink data rate not to exceed a previous uplink data rate during a predetermined validity duration, if the common scheduling grant indicates a rate-down, and transmits uplink data at the controlled uplink data rate.

The present invention relates to the technical field of communications. Disclosed are a method and device for downlink data transmission for use in reducing network resource wastage when a network side is transmitting data to a certain group of user terminals, thus increasing network resource utilization rate. The method comprises: grouping specific user terminals into a group, and identifying each group with a unique Group ID; a user terminal, when idle, monitors paging messages intended for it, and a first message; when a network side is transmitting downlink data, the network side transmits downlink data transmission scheduling information, and pages the group of user terminals at a timing of the group by means of the first message carrying the Group ID of the group; the user terminals that have received the first message receive the downlink data at a time window and a fixed physical resource position on the basis of the group-based downlink data transmission scheduling information received. This reduces waste of network resources in M2M communications when the network side is transmitting data to a certain group of user terminals, thus increasing the effect of network resource utilization rates.

A multimedia service of a UMTS (Universal Mobile Telecommunications System) is disclosed. When UTRAN provides an MBMS service, it designates time at which each data for MBMS service is transmitted and transmits the corresponding time information to a terminal group which desires to receive a specific MBMS service. Accordingly, a terminal of the terminal group receives the MBMS service data during a section of the corresponding time information and also receives a control signal or other service than the MBMS service at other time.

Systems and methods for resource coordination and management in a communication environment are disclosed. The resource coordination and management may comprise, for example: transmitting channel and interference measurement signals over a plurality of resources; receiving link signal quality measurements that are based on the transmission of the channel and interference measurement signals over the plurality of resources; exchanging link signal quality measurement information with at least one apparatus, wherein the exchange of the link signal quality measurement information comprises sending information based on the received link signal quality measurements; and determining a data transmission schedule based on the exchange of the link signal quality measurement information.

A method and apparatus for discontinuous reception for a shortened transmission time interval and processing time includes a device receiving, from a network, an indication to enable a first TTI which is a shorter TTI than a second TTI for which the device can be enabled. The method further includes the device switching from monitoring for data transmission scheduling assignments under the control of a DRX configuration associated with the second transmission time interval to monitoring for the data transmission scheduling assignments based on the first transmission time interval.

The invention relates to a method for scheduling P2P streaming media video data transmission, which belongs to a method for scheduling streaming media video data transmission and is used for transmitting streaming media video data on a network. The method solves the problems that the prior method for scheduling the P2P streaming media video transmission does not consider that video frames and downloading cache partitions have different importance degrees, thereby effectively promoting the playing continuity and further promoting the user experience quality. The method comprises the steps of initialization, startup playing and normal playing. The method can request the scheduling of an I frame subdata subsection in preference under the condition of having the same packet loss ratio, then the scheduling of a P frame subdata subsection, and finally the scheduling of a B frame subdata subsection, thereby keeping the playing continuity to the utmost extent and further effectively promoting the experience quality; besides, the method combining a sequential scheduling for an emergency download cache and a rare priority scheduling for a non-emergency download cache can reach the dynamic best compromise between the reduction of the starting time and improvement on the playing continuity and extendibility.

The invention discloses a resource allocation and task scheduling method for edge cloud combination. The method comprises the steps of firstly recording the relevant information of an edge server adjacent to the edge server in the edge server; when the task arrives at an edge server adjacent to the task, using the server to calculate the estimated calculation time and energy consumption cost for sending the task to each server; selecting the edge server with the lowest energy consumption cost from the servers meeting the calculation time required by the task as the task execution position, ifthe server does not meet the requirement, executing the task locally, and if all the servers are in the full load state, issuing the task to the cloud server for execution under the condition that themaximum delay time is met, and finally, after the task arrives at the processing position, using the edge server to carry out the task execution sequence scheduling and data transmission scheduling on the task according to the deadline of the task, so that the purposes of reducing the energy consumption cost of the whole system and balancing the load of the whole edge server are achieved on the premise of ensuring the task delay requirement.

The embodiment of the invention discloses a data transmission scheduling and data transmission method and equipment, relates to the field of wireless communication and is used for reducing system signaling overhead. In the invention, a network side generates a DCI comprising an indication information domain. The indication information domain carries indication information for sending data on the designated resource of a D2D link by a sending terminal and indication formation for receiving the data on the designated resource of the D2D link by a receiving terminal. An RNTI used for scheduling group communication or broadcast communication is utilized to scramble the generated DCI, and the DCI scrambled by the RNTI is sent. After the terminal detects the DCI, confirmation of the sending terminal or the receiving terminal is performed according to the indication information in the DCI. If the terminal is the sending terminal, the data are sent to the receiving terminal on the designated resource of the D2D link. If the terminal is the receiving terminal, the data are received on the designated resource of the D2D link. The system signaling overhead is effectively reduced by the scheme.

The invention provides a data transmission scheduling method, a system and a device for IP storage area network (SAN) storage, wherein the method comprises setting sub cache on a storage front end server end aiming at each channel, setting priority for each channel according to actual requirements, extracting data from the sub cache of each channel according to the priority of each channel and according to a preset priority strategy, and sending internet small computer system interface (iSCSI writing request) aiming at each data and according to extracting sequence, or setting request list aiming at each channel on an IP SAN storage device end, setting priority for each channel according to actual requirements, and extracting iSCSI writing request from the request list of each channel according to the priority of each channel and according to the preset priority strategy, and answering each iSCSI writing request and getting ready for receiving response according to the extracting sequence, thereby satisfying different data storage requirements of each channel.

The invention discloses an Internet of vehicles (IoV) data transmission scheduling method based on channel prediction. Large-scale channel information between vehicles and roadside enter units and between vehicles is predicted by using a channel prediction algorithm according to collected vehicle state information, a signal to noise ratio and communication benefit of a potential communication link are computed, and a relay vehicle node set is selected to scheduling data distribution by using a greedy algorithm. According to the method, an effective vehicle node is selected as a relay node for distributing data by predicting the channel fading in large scale to achieve the maximum communication benefit; and in a central data distribution scene having the vehicles and the roadside center units, a throughput rate of the system is improved, and data distribution delay is reduced by reasonably allocating time resources.

A method and system including a central processing unit (CPU), an accelerator, a communication bus and a system memory device for dynamically processing an image file are described. The accelerator includes a local memory buffer, a data transfer scheduler, and a plurality of processing engines. The data transfer scheduler is arranged to manage data transfer between the system memory device and the local memory buffer, wherein the data transfer includes data associated with the image file. The local memory buffer is configured as a circular line buffer, and the data transfer scheduler includes a ping-pong buffer for transferring output data from the one of the processing engines to the system memory device. The local memory buffer is configured to execute cross-layer usage of data associated with the image file.

The invention provides a data transmission scheduling system for distributed multi-cloud storage. The system comprises: a proxy server serving as a user uploading and downloading relay to optimize data transmission, feeding back the link bandwidth of a cloud storage node to a scheduling controller, and migrating the data to cloud storage nodes in other regions; a scheduling controller processing the user operation request in an online queuing manner based on a preset priority, selecting a node set with optimal access performance according to the link bandwidth of the cloud storage node, and adaptively adjusting the number of node proxy servers; and a local manager used for sending the user request operation to the scheduling controller, and interacting with the returned node set with the optimal performance according to a preset data storage mode to complete data transmission. According to the system, general and complete data transmission support can be provided for most cloud storageservice upper-layer application programs, optimization of data transmission performance and efficient utilization of resources are considered at the same time, and user experience and resource expenditure of application service providers can be effectively balanced.

A transmitter directed, distributed receiver using multi-user diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of communication links between a common transmitter and several users. The greater the variation in the quality of a particular link over time, the greater the increase in total system throughput provided. A scheduler metric (or scheduler metric) represents the instantaneous quality of the communication link between each user and the transmitter with respect to the average quality of the link. Alternatively, the scheduler metric represents the instantaneous channel condition with respect to the average data throughput over that channel. The common transmitting station uses the scheduler metric to directly compare the desirability of granting each channel access with the desirability of granting each other channel access. The users with links that have the greatest scheduler metric are provided access to the channels.

An input/output device identifies a workload type for a connected host device. The input/output device applies settings for the workload type to affect one or more of a flash translation layer queue depth of the input/output device, a host device data transfer scheduler of the input/output device, and a command status host notification timing by the input/output device to the host device.

The invention discloses a data transmission scheduling method based on channel configuration, belonging to the technical field of data transmission scheduling. The prior data transmission scheduling method is as follows: taking an assignment as a starting point for transmission scheduling, extracting a source plate and an objective plate in the assignment and confirming a sending terminal and a receiving terminal for transmission through selecting an xPeer terminal under the source plate and an xPeer terminal under the objective plate, then executing the assignment through sending out an instruction by an M-Peer. By the way, the transmission scheduling has lower efficiency. In the method, a channel is used as a starting point for transmission scheduling, firstly, whether the channel exists in a source terminal and an objective terminal or not is queried in a channel list, if no channel exists, transferring is performed by a channel router; and if the channel exists and the channel is usable, then a channel connection is built for transmitting data. The channel has specificity and directivity, and therefore, the method can remarkably improve the efficiency of data transmission scheduling.