47results about How to "Reduce access conflicts" patented technology

A cache structure for use in implementing reconfigurable system configuration information storage, comprises: layered configuration information cache units: for use in caching configuration information that may be used by a certain or several reconfigurable arrays within a period of time; an off-chip memory interface module: for use in establishing communication; a configuration management unit: for use in managing a reconfiguration process of the reconfigurable arrays, in mapping each subtask in an algorithm application to a certain reconfigurable array, thus the reconfigurable array will, on the basis of the mapped subtask, load the corresponding configuration information to complete a function reconfiguration for the reconfigurable array. This increases the utilization efficiency of configuration information caches. Also provided is a method for managing the reconfigurable system configuration information caches, employing a mixed priority cache update method, and changing a mode for managing the configuration information caches in a conventional reconfigurable system, thus increasing the dynamic reconfiguration efficiency in a complex reconfigurable system.

The invention relates to a vehicle-mounted ad hoc network self-adaptive time slot distributing method based on a time division multiple address (TDMA), the vehicle-mounted ad hoc network self-adaptive time slot distributing method divides a time frame into a left time slot set and a right time slot set, nodes are divided into a left node set and a right node set based on the moving direction of the nodes, and the nodes in the left / right node sets choose competition time slots in the left / right time slot set based on the current geographical location information and according to certain rules. The vehicle-mounted ad hoc network self-adaptive time slot distributing method based on the TDMA reduces the ratio of a connect-in confliction and an amalgamation confliction occurred by the nodes to a large degree; and based on density changes of the nodes sensed by the nodes, the lengths of frames are dynamically adjusted, so that the demand that the nodes swiftly connect-in channels is satisfied; low time delay of the vehicle-mounted ad hoc network self-adaptive time slot distributing method based on the TDMA is authenticated by both theoretical analysis and simulating experiments. Compared with the prior art, the vehicle-mounted ad hoc network self-adaptive time slot distributing method based on the TDMA has the advantages of having less quantities of confliction nodes, higher utilizing ratio of the channels and good expansibility.

The invention discloses a controller for realizing configuration information cache update in a reconfigurable system. The controller comprises a configuration information cache unit, an off-chip memory interface module and a cache control unit, wherein the configuration information cache unit is used for caching configuration information which can be used by a certain reconfigurable array or some reconfigurable arrays within a period of time, the off-chip memory interface module is used for reading the configuration information from an external memory and transmitting the configuration information to the configuration information cache unit, and the cache control unit is used for controlling the reconfiguration process of the reconfigurable arrays. The reconfiguration process includes: mapping subtasks in an algorithm application to a certain reconfigurable array; setting a priority strategy of the configuration information cache unit; replacing the configuration information in the configuration information cache unit according to an LRU_FRQ replacement strategy. The invention further provides a method for realizing configuration information cache update in the reconfigurable system. Cache is updated by the aid of the LRU_FRQ replacement strategy, a traditional mode of updating the configuration information cache is changed, and the dynamic reconfiguration efficiency of the reconfigurable system is improved.

The invention discloses a high-efficiency passing method for a road intersection. A left turning passage for communicating two-way lanes of a major trunk road is built in the middle section of a straight through isolating band of the two-way lanes of the major trunk road; an approximately quincuncial or oval traffic ring island is formed on the intersection; resources of middle section of the road are thoroughly used for enhancing the passing capability of the intersection; and waste road resources are better applied. Under the condition that no overpass is built on a suburban intersection and a T-junction and buildings along streets are not removed, a left turning vehicle stream and a straight vehicle stream on the major trunk road quickly can pass the intersection without any parking; under the condition that the left turning vehicle stream and the straight vehicle stream on the major trunk road are not disturbed, a left turning vehicle stream and a straight vehicle stream on a secondary trunk road can successfully pass the intersection so that the passing vehicle streams on the intersection are simple and sequential; and 50% traffic light conversion is reduced, therefore, the purposes of largely enhancing the vehicle passing efficiency and realizing quick passing are achieved.

The invention discloses a hybrid branch prediction device and method of out-of-order high-performance cores, and relates to the field of computer branch prediction. The device can perform performance evaluation at the microarchitecture level of the processor, and alleviate the renaming blockage of out-of-order high-performance processors caused by branch prediction failures and missing instructions; the device provides a high-precision, flexible and configurable hybrid The branch predictor is composed of a global historical information branch TAGE predictor, a statistical correction predictor and a cycle predictor; the TAGE predictor utilizes parameterized Tagged components and split read improvement strategies to achieve high-precision branch prediction and reduce access conflict; the statistical correction predictor is used to confirm or restore the prediction result of the TAGE predictor according to the prediction result and confidence of the TAGE predictor; the cycle predictor is used to use the replacement strategy and the cycle branch reduction technology to predict The principal's rule loop. The invention makes full use of limited hardware storage overhead, greatly reduces access conflicts, and improves the overall performance of the processor while improving branch prediction accuracy.

The present invention provides a source node device and a destination node in a data processing system, a data processing system, and a decoding method. The source node device includes: an encoding unit, configured to conduct an encoding processing on collected original data according to a codebook including an encoded numerical value and a sending interval corresponding to the original data so as to encode the original data into encoded data having a corresponding encoded numerical value included in the codebook, and to determine a sending interval corresponding to the encoded data included in the codebook. According to the present invention, sending intervals of different encoded data are determined and distinguished based on sending intervals corresponding to the encoded data included in the codebook, which provides a better performance on channel load, channel access collisions, energy efficiency, consumed resources or lifetime of the data processing system.

The present invention relates to the technical field of communications. Disclosed are a terminal access control method and device. The method comprises the following steps: a network side adds reject indication information, which includes a reject timer value, to a downlink control message in order to indicate that a terminal should wait until the reject timer expires and then initiate random access during a first time period; the network side issues the downlink control message to the terminal. The invention also provides a terminal access method and device. Applying the invention can effectively control the terminal access and reduce the access conflicts.

The present invention discloses a random access method of time division synchronous code division multiple access system which is based on the distributed antennae; the method comprises the following processing that every antenna unit of the base station of the time division synchronous code division multiple access system implements the relevant operations on received random access signal and uplink synchronous code to obtain the corresponding result sequence; the relevant result sequence obtained by every antenna unit is processed to judge whether the user device which uses the uplink synchronous code for uplink access exists on every antenna unit; with the judging result, people decide whether to arrange a downlink forward-link physical access channel for the uplink synchronous code. With the technical proposal, at least two of the following beneficial effects are realized that the probability of system access conflict is reduced and the success rate of system access is increased.