50results about How to "Reduce scheduling delay" patented technology

A method of operating a wireless communication system (FIG. 4) is disclosed. The method includes receiving downlink control information (702) for transmission to a user equipment (UE) in enhanced physical downlink control channel (EPDCCH). A pseudo-random number generator is initialized (706) for generating a pseudo-random sequence. A plurality of demodulation reference signals (DMRS) are generated with the pseudo-random sequence. The plurality of DMRS is mapped with the EPDCCH and transmitted to the UE (712).

A method and apparatus for scheduling the transfer of data bursts in a network comprising electronic edge nodes interconnected by bufferless core nodes are disclosed. Each edge node comprises a source node and a sink node, and each core node comprises several bufferless space switches operated in parallel. Each source node is connected to at least one core node by an upstream link that includes multiple upstream channels. Each core node is connected to at least one sink node by a downstream link that includes multiple downstream channels. Any of the space switches can have either an electronic fabric or a photonic fabric. Each space switch has a master controller, and one of the master controllers in a core node is designed to function as a core-node controller in addition to its function as a master controller. Each master controller has a burst scheduler operable to compute a schedule for the transfer of data bursts, received from source nodes, to destination sink nodes.

The invention provides a transmission, a detection method, a network side device, and user equipment of top-down control information. High pass network (HPN) fields are expanded in a tacit mode or in an explicit mode, consequently the HPN fields are expanded from three bits to four bits, thus more hybrid automatic repeat request (HARQ) progresses can be represented by an expanded HPN, and accordingly flexibility of system scheduling can be improved, scheduling time delay is reduced, terminal peak rates are increased, and meanwhile multi-user diversity gain is obtained.

An embodiment of the invention discloses a method, a system and equipment for data transmission, relating to the field of wireless communication and used for reducing scheduling delay in a central coordination scheduling scheme under non-ideal backhaul. The method comprises the following steps that a CCN (Central Coordination Node) receives channel information of UE (User Equipment), which is transmitted by each coordinated base station; the CCN carries out CoMP (Coordinated-Multiple-Point) transmission scheduling of CoMP UE according to the received channel information of the UE, data to be transmitted of the CoMP UE, which is stored in a cache, and data size information to be transmitted of non-CoMP UE, and generates the scheduling information of the CoMP UE and an MAC PDU (Medium Access Control Packet Data Unit), which needs to be transmitted to the CoMP UE; the CCN transmits the generated scheduling information and the MAC PDU to each coordinated base station of the scheduled CoMP UE, and each coordinated base station carries out data transmission with the CoMP UE according to the received information. By adopting the scheme, the scheduling time delay of a network side on the UE is reduced.

The invention relates to a feedback method for increasing downlink ability in a time division duplex system, which comprises the following steps: step 1, a terminal receives signals of a base station on bidirectional spectrum, which is used for receiving business data or control information; step 2, the terminal sends feedback information to the base station on uplink unidirectional spectrum. The invention can remarkably increase the power control frequency of the downlink in a TDD system and can remarkably reduce the scheduling delay of the TDD system. Furthermore, the invention effectively increases the throughput of the downlink in the TDD system and increases the supporting ability of the TDD system to a high-speed mobile terminal. The invention has the advantages of channel reciprocity and simple terminal structure on one hand, on the other hand has an FDD system with small closed ring control delay and a TDD downlink system which supports high-speed mobile advantage.

The invention discloses a virtual resource dispatching system for related task requests and a dispatching and distributing method for the related task requests. Operation performance can be effectively guaranteed when the communication related tasks exist, and meanwhile an effective balance point is selected from a system load. In addition, by the adoption of dominant_share evaluation features based on a DRF, it can be prevented that too many resources are distributed, and fragments of partial resources are generated. By the adoption of a distributing strategy based on greed, compared with a linear programming algorithm, the distributing algorithm has a great time performance advantage, the dispatching time delay is reduced, and good user experience is obtained. Finally, the dispatching algorithm can improve the resource utilization condition of a platform, reduce the number of available tasks in waiting, increase the resource utilization rate of the cloud computing platform, and improve the performance of the platform and the overall processing performance of the platform.

The invention discloses data transfer path selection method of a FC switch, and a parallel scheduling method and device, related to the field of switch data transmission. The data transfer path selection method of the FC switch comprises the following steps: when a data input request arriving at an output port j is in a request queue, the permission arbiter of the output port j sends a selected request for an input request of the data with the highest priority to the accepting arbiter of an input port i; then the permission arbiter of the output port j locks the output port j after confirmingthe data transfer of the output port j is valid, so as to form a jth data transfer path corresponding to the input request; the accepting arbiter of the input port i matches the corresponding input port i according to the selected request sent by the permission arbiter of the output port j, and sends a selected request response to the arbiter of the output port i; and then the input port i is locked after confirming the data transfer of the output port j matching the input port i is valid, so as to form an ith data transfer path corresponding to the input request.

The present invention relates to a method for sending and receiving a reference signal for a backhaul subframe in a wireless communication system in which a relay is present and also to a device therefor, constituted in such a way that common reference signals for a plurality of receiving devices and reference signals dedicated to separate receiving devices are allocated dispersed in a subframe, and the common reference signals and the dedicated reference signals are generated and are sent and received via the subframe. The present invention can improve the channel estimation performance for subframes in a wireless communication system. In this way, communications efficiency in wireless communication systems can be improved.

The invention discloses an urban taxi scheduling method based on demand prediction. The urban taxi scheduling method comprises the steps of performing data preprocessing on passenger carrying track data through noise filtering data; extracting urban area demand characteristics of spatial correlation characteristics and time period rules through a two-dimensional convolutional neural network; and in combination with urban area taxi demand number prediction and taxi track destination prediction, scheduling urban taxies by using an NSGA-II algorithm. Improving prediction accuracy. Passengers canbe found as early as possible under the condition that the taxi meets the requirements, the taxi operation efficiency is improved, and the taxi scheduling delay is reduced.

The invention relates to a clustering method based on business volume weight. The nodes are divided into a plurality of clusters, the node with the maximum weight value is selected as a cluster head according to the weight and the basis generated by common nodes in the clusters, if the rest nodes are in the cluster head communication range and the weight value is smaller than that of the cluster head nodes, the common nodes in the clusters communicate with the cluster head, and the cluster heads communicate with one another. Compared with other clustering algorithms, the method has lower time delay, faster scheduling and higher cluster head channel utilization rate. Meanwhile, on the basis, the distribution uniformity of the cluster heads is considered, energy waste caused by the fact that the number of cluster head nodes is not too large is maintained, frequency band distribution is considered, and the network utilization rate is increased.

The invention belongs to the technical field of wireless communication, and discloses a channel access method of a multi-priority wireless terminal based on deep reinforcement learning, and the channel access method of the multi-priority wireless terminal based on deep reinforcement learning comprises the following steps: establishing a network scene with different priority services; designing and defining a system model of a protocol, performing state space modeling and action space modeling according to a protocol network scene, and designing reward functions for different scenes; defining and establishing a neural network model used by the protocol, and training the network model through an experience tuple; and performing performance verification on the trained model through multi-scene simulation comparison. The channel access method of the multi-priority service wireless terminal is designed by using deep reinforcement learning, the method is more suitable for wireless networks with services of different priorities, the throughput of the system and the utilization rate of wireless channel resources are improved, and while the scheduling delay of high-priority services is shortened, the opportunity of the low-priority service to access the channel is improved.

The present disclosure relates to a random access method and device, and a configuration indication method and device, the random access method comprising: initiating random access based on first random access configuration information in response to the fact that a terminal autonomously determines a timing advance, and initiating random access based on second random access configuration information in response to the fact that the terminal non-autonomously determines the timing advance; wherein the first random access configuration information is different from the second random access configuration information. According to the embodiment of the invention, under the condition that the terminal autonomously determines the timing advance, the capacity of random access in unit time is improved, the scheduling delay is reduced, and under the condition that the timing advance is not autonomously determined, the interval of random access resources is ensured to meet the error of the communication delay.

Provided are a method and a device for sending downlink DCI. The method comprises: a base station determining a first channel resource, the first channel resource being located in an ith time unit ina subframe in a time domain, the subframe comprising NT time units, NT being an integer greater than or equal to 2, and i being a positive integer less than or equal to NT; and the base station sending DCI to the terminal device on the first channel resource. In the scheme, the first channel resource bearing the DCI is located in the ith time unit in one subframe in the time domain, wherein i is apositive integer less than or equal to NT, that is, each time unit in the sub-frame has the first channel resource, so that no matter which time unit the data needs to be transmitted, the data can beimmediately transmitted without waiting for the next sub-frame to be transmitted, and thus, the scheduling time delay is reduced.

The invention discloses an energy-saving indication and energy-saving method, a base station, equipment and a storage medium. The energy-saving indication method comprises the following steps: indicating energy conservation; emission of indication information, wherein the indication information comprises corresponding monitoring information of at least one piece of user equipment which needs to wake up in a first DRX period in the future, and the monitoring information is used for indicating the corresponding user equipment to monitor the PDCCH at a specified PDCCH monitoring time after the start of the DRX on duty timer. According to the invention, the monitoring information is used for indicating when the UE wakes up in the first DRX cycle in the future starts to monitor the PDCCH in theDRX on delay period; even if the user data arrives in the DRX cycle period, the base station can also schedule the user data from a certain PDCCH monitoring opportunity after the user data arrives, and the user data is prevented from being delayed to the next DRX cycle, so that the time delay of user data scheduling is reduced.

The invention provides a data transmission method, a data sending method, a terminal and a control node, and relates to the technical field of communication. The data transmission method is applied tothe terminal and comprises the steps of obtaining first information; according to the first information, obtaining a scheduling instruction sent by a control node for a direct communication link; according to the scheduling instruction, carrying out data transmission. The first information comprises a scheduling identifier, and the scheduling identifier is used for indicating the terminal to monitor a scheduling instruction. Thus, the scheduling delay and the direct communication link resource overhead can be reduced.

The invention discloses a resource request method and device. The method includes: a first user equipment (UE) receives resource configuration information for communication between the first UE and an evolved base station (eNode), the first UE determines data that needs to be sent to the second UE, and the first UE Determine the device-to-device (D2D) transmission resource indication that needs to be sent, the first UE sends a resource scheduling request (SR) carrying the D2D transmission resource indication to the eNode on the resource corresponding to the resource configuration information, and the The D2D transmission resource indication is used to request the eNode to allocate D2D transmission resources for the first UE, the first UE receives information about the D2D transmission resources used to send data to the second UE, and the information about the D2D transmission resources Allocated by the eNode according to the D2D transmission resource indication, the first UE sends data to the second UE on the D2D transmission resource, thereby saving transmission resource overhead between the eNode and the UE, and avoiding The problem that the first UE requests the eNode for too long transmission resources reduces the scheduling delay.

The invention belongs to the technical field of transmission-limited service scheduling, and discloses a transmission-limited service planning and scheduling method, which comprises the following steps of: automatically generating and maintaining a dynamic service planning and scheduling table by a system, and carrying out polling scheduling with priority on services according to the service scheduling table; the service planning table generates polling priorities according to a service issuing sequence, and the polling priority of the service which is issued earlier is higher; in the running process of the system, polling is carried out according to the priorities in the table items from high to low until a service meeting the sending interval requirement is polled, dequeuing is carried out under the condition that the service does not collide with other types of services, and when the service begins to dequeue, the scheduled table items are linked to an idle linked table, and the service is sent to the idle linked table. And linking the previous table item with the next table item of the table item. According to the invention, the overall scheduling time delay of the service is very small, and the consumption of FPGA storage resources by the system is reduced.