35results about How to "Improve random access performance" patented technology

The invention provides a random access sequence transmission method and device, relates to the communication field, and helps to solve the problem that random access signaling sent by MTC UE in a hostile environment can be guaranteed be correctly detected by eNB. The method comprises a first node sends a random access channel configuration message, wherein the random access channel configuration message at least comprises random access channel resource configuration information of a third node. According to the technical scheme provided in the invention, the random access sequence transmission method and device are suitable for M2M services in an LTE system, and higher MTC UE random access performance is realized.

The invention discloses a video encoding method with multi-mode and multi-view. According to the analysis of the time correlation for the multi-view video signals and view correlation , as well as the comprehensive characters such as the compressing efficiency, complexity of encoding, random access performance and coding delay demanded by the system, the method adaptively dynamic-chooses the predictive coding mode which meets the features and the comprehensive encoding requirements of the current signals to encode them, in order to replace the method with single mode and complex calculation that forecasts by the union of time and space, and decrease the calculation complexity of compressing the signal coding.

A random access method and system are disclosed. The method includes: a second node sending a random access signaling to a first node; and the first node replying a random access response message to the second node, wherein random access response information of the second node is carried in the random access response message.

The semiconductor memory device proposed in the present invention comprises memory cells disposed in the row direction and the column direction, a plurality of first lines by which supply voltages are supplied in order to select memory cells disposed in the row direction among the plurality of cells, a plurality of second lines by which supply voltages are supplied in order to select memory cells disposed in the column direction among the plurality of cells, the data lines which input and output the data to the selected memory cells, the first power voltage supply circuit which supplies the predetermined supply voltages to the first lines corresponding with the externally input row address synchronizing with an act command, and the second power voltage supply circuit which supplies the predetermined supply voltages to the second lines corresponding with the externally input column address synchronizing with an act command. It also comprises m pieces of memory banks (m is a natural number larger than 2) which write or read the data into or from the memory cells which are selected one after another in the row or column directions, data input circuits in which multiple bits of serial data which is larger than 512 bits to be written in the m pieces of memory banks, data output circuits which reads the data from the m pieces of memory banks and output in a form of multiple bits of serial data which is larger than 512 bits, and data conversion circuits which convert the serial data input in the data input circuits to parallel data so that it can be written in each memory bank or to convert each parallel data read from each memory bank to serial data so that such data are supplied to the data output circuits.

The invention discloses a solid-state memory device random access performance improving method based on STT-MRAM. The solid-state storage device comprises a magnetic random access memory STT-MRAM and a storage medium NAND flash. The high-speed read-write performance and the power-down nonvolatile performance of the STT-MRAM are utilized. The STT-MRAM is adopted as the high-hit LBA data cache in the solid-state storage device controller, the response path of the high-hit LBA is simplified, and the random access performance of the system is enhanced. And when GC occurs, the high-hit LBA data is uniformly put into the target BLOCK by utilizing the LBA read-write frequency data in the STT-MRAM, so that the high-hit LBA data can be read into the STT-MRAM for buffering at one time when the data in the buffer area of the STT-MRAM is lost or damaged, and the response time is shortened.

This invention discloses one random interfacing realization method, which comprises the following steps: setting user selected signature with different priority to different interface and processing each user by each signature according to each signal priority order of each interface gap. This invention method can make each user reduce network management complexity and materials spending on base of even opportunity to interface to network.

The information recording apparatus (100) generates the signal light (Ls) and the reference light (Lr) from one laser light, and irradiates the signal light and the reference light on the recording medium (8) to record the information by utilizing the interference fringes. Namely, the information recording apparatus executes a so-called hologram recording. Though the signal light is generated by spatial-modulating the laser light by the recording information, the one-dimensional spatial modulation is performed in the present invention. By performing the one-dimensional spatial modulation, recording the information is possible even if the recording medium is moving in a direction perpendicular or nearly perpendicular to the direction of the spatial modulation. Thereby, even if the irradiation position of the signal light and the reference light is moving relatively to the recording medium, e.g., while a disc-type recording medium is rotating, the hologram recording is possible. Thus, the random access performance to the recorded information can be improved and a configuration of the apparatus can be simplified.

Method and device in nodes used for wireless communications. A node receives first information, the first information being used to determine X candidate formats; transmits a first signal, the first signal using a first format; and transmits a second signal, the second signal using a second format; the first format is one of the X candidate formats, and the second format is also one of the X candidate formats; a first timing offset value is used to determine a transmission timing for the first signal, while a second timing offset value is used to determine a transmission timing for the second signal, where the first timing offset value is unequal to the second timing offset value; the first format relates to the first timing offset value while the second format relates to the second timing offset value. The present disclosure improves the random access performance.

The invention provides a lead code detection method and device. In the method, a base station determines to-be-merged frequency domain data of each first symbol from a user terminal, each first symbol being used for transmitting the same lead code; for each preset number of first symbols, performing coherent combination on the to-be-combined frequency domain data of the preset number of first symbols to obtain combined frequency domain data of second symbols; and processing based on the frequency domain data of all the second symbols obtained after combination to detect the lead code. According to the invention, the random access performance of the system can be effectively improved.

Provided are a random access method and device, which can improve the performance of random access of a terminal device on an unlicensed frequency band. The method comprises: a terminal device receiving a PDCCH, the PDCCH comprising PRACH resource indication information, the PRACH resource indication information being used for indicating a public PRACH resource scheduled by a network device, the PRACH resource indication information comprises at least one of the following information: information of the PRACH resource, information of a synchronization signal block (SSB) associated with the PRACH resource, and information of a PRACH lead code transmitted on the PRACH resource; and the terminal equipment uses the PRACH resource to send the PRACH according to the PRACH resource indication information.

The invention provides a converged communication attribution transfer and registration method suitable for a narrowband network. The converged communication attribution transfer and registration method comprises the following steps: step 1, designing a local registry TR, a local roaming immigration table TMI and a local roaming emigration table TMO; step 2, establishing an attribution adaptive evolution method, and performing attribution migration; step 3, carrying out prefix splitting and merging to realize nearby local registration access; and step 4, completing registration by roaming users. Attribution dynamic adjustment is made so that the large number of roaming registered users are adjusted into local registered users; therefore, the bandwidth requirement and the link quality requirement on the communication network are greatly reduced; the method can support the quick deployment of the converged communication system in communication environments with narrow-band and weak-connection link characteristics, such as industrial Internet of Things, battlefield communication, narrow-band ad hoc networks and cluster communication networks, supports the random access and roaming switching of terminals, and can improve the robustness of the converged communication system.

The invention discloses a low earth orbit satellite Internet of Things service model based on an attractor selection algorithm and a multi-satellite load balancing algorithm. according to the business model, a method for determining terminal deployment density by grid division is adopted in the spatial dimension, a random position generation method is adopted, and specific coordinates of a terminal are determined by constructing a terminal deployment density matrix, utilizing the characteristics of an edge cumulative probability distribution function pair and using mathematical methods such as one-dimensional inverse change sampling and affine transformation; and in the time dimension, event-driven services are researched, and burst traffic characteristics in a short time range are accurately captured. In the multi-satellite load balancing algorithm, the network activity and the network state of each satellite are calculated in real time to guide the Internet of Things terminal to carry out dynamic self-adaptive satellite decision. Therefore, the method is more suitable for high-dynamic scenes such as the satellite Internet of Things, and can enable the terminal to make adaptive decision adjustment and improve the random access performance when the external access scale changes.

The invention discloses a pilot collision detection method, device and system, and the method comprises the steps: S1, calculating the intensity of a received pilot signal corresponding to any undetected pilot pl in a preset pilot pool after a distributed access point in a base station receives the pilot signal; S2, after pilot signal intensities corresponding to the pilot pl and received at all access points are obtained, forming a vector; S3, inputting the obtained vector into a pre-trained pilot collision detection model to obtain a collision number of the pilot p1, and repeating the step S1S3 until all pilots in the preset pilot pool complete collision detection. When MTC massive terminals are randomly accessed, pilot collision and the number of conflicting terminals can be rapidly detected only according to received pilot signals, so extra wireless resources and time expenditure in random access are avoided, and energy consumption and time delay of access terminals in random access are reduced, so that the base station can carry out timely and effective resource allocation conveniently, and the random access performance of the terminal is improved.