55results about How to "Increase transmission delay" patented technology

A method and apparatus for scheduling data transmissions is disclosed that reduces the delay variability in transmissions of data. A scheduling metric is calculated as a function of a TCP throughput rate for each mobile terminal in the system. The relative value of this metric for a user is used to schedule data transmissions from that user. As a result, TCP time-outs are reduced or avoided and the throughput and the predictability of system performance are increased.

The present disclosure provides a method and device for communication on unlicensed spectrum in a UE and a base station. In view of PUCCH resource waste and transmission delay increase that are caused by configuring too much unlicensed spectrum, in the present disclosure, logical information is configured so that PDSCHs transmitted through different sub-frames on different physical carriers form one logical carrier, and an HARQ operation is performed on the logical carrier. As an embodiment, HARQ_ACK resources are reserved according to the number of logical carriers currently configured, and a system uses dynamic signaling to indicate an index of an HARQ_ACK corresponding to a scheduled PDSCH in the reserved HARQ_ACK resources. The solution provided in the present disclosure saves PUCCH resources and reduces the HARQ delay. Besides, the present disclosure reuses as much as possible the PUCCH resource allocation scheme and HARQ transmission scheme in the existing LTE, and has good compatibility.

The invention discloses a rapid and high-accuracy junk mail filtering method, which relates to a processing method of electronic mails. The method comprises the steps of firstly preprocessing all received mails and extracting the feature information of the mails, then comparing the feature information of the mails with a junk mail filtering database to find out whether a mail the same to a mail in the database or smaller than a certain threshold exists, judging the mail to be a similar mail with a mail in the database if the mail exists, and marking the mail as a junk mail, and recording the repeated emergency of the feature of the mail, or judging the mail as a normal mail and adding the feature information of the mail to the junk mail filtering information database. The method also comprises the steps of accessing mail data, preprocessing mails, extracting mail features, importing weights, detecting whether a mail is a junk mail and the like. The method can improve the recognition speed and the filtering accuracy of junk mails, and has the characteristics of high filtering speed, high accuracy rate, wide application situations and the like.

The invention provides a network switching method, which can optimize the switching of UE between a PLMN and an NPN. The method comprises the following steps that: terminal equipment accesses a firstnetwork, when the terminal equipment determines that a second network needs to be accessed, the terminal equipment determines identification information of the second network, wherein one of the firstnetwork and the second network is a public network and the other one is a non-public network, and the terminal equipment sends a first request message to a first access and mobility management function AMF of the first network, wherein the first request message carries identification information of the second network and first identification information of the terminal device and the identification information of the second network and the first identification information of the terminal device are used for authentication and/or authorization of the terminal device in the second network.

The invention provides a network congestion decision method and network congestion decision equipment for a wireless communication system. The method comprises the following steps of: judging whether the number of users accessing a carrier for bearing a data service reaches a user number threshold value or not, and performing network congestion decision according to a judgment result. The equipment comprises a first judgment module and a decision module, wherein the first judgment module is used for judging whether the number of the users accessing the carrier for bearing the data service reaches the user number threshold value or not; and the decision module is used for performing network congestion decision according to the judgment result of the first judgment module. By the method and the equipment, the judgment accuracy of the network congestion condition of the data service can be improved.

The invention discloses a method for transmitting information to multiple destination IDs based on V2X (Vehicle to X) SideLink communication. The method comprises the step that an MAC SDU (Service Data Unit) of each destination ID is multiplexed in an MAC PDU (Protocol Data Unit) when a sender transmits a V2X service to more than two receivers so as to transmit the V2X service to the receivers corresponding to all destination IDs through an SL-SCH (Side Link Synchronization Channel), wherein the MAC PDU structure is applied to a V2X SideLink communication scene on the SL-SCH. The method disclosed by the embodiment of the invention can realize the transmission of the V2X service to multiple destination IDs, and improves the resource utilization rate and the transmission delay.

The invention discloses a data transmission path selection method based on vehicle density distribution. The method comprises the following steps of acquiring position information of a source node and a purpose node; selecting a transmission path and carrying out data packet forwarding in a street. By using the method of the invention, a packet loss and retransmission brought by a data transmission path failure generated because of a unnecessary routing void are avoided and a network load is reduced; a data transmission time delay state under the condition of sparse vehicles can be reflected and a data transmission time delay state under a vehicle jam (common) scene can be reflected too. The model is suitable for a more general scene.

Techniques for a pipelined bus which provides a very high performance interface to computing elements, such as processing elements, host interfaces, memory controllers, and other application-specific coprocessors and external interface units. The pipelined bus is a robust interconnected bus employing a scalable, pipelined, multi-client topology, with a fully synchronous, packet-switched, split-transaction data transfer model. Multiple non-interfering transfers may occur concurrently since there is no single point of contention on the bus. An aggressive packet transfer model with local conflict resolution in each client and packet-level retries allows recovery from collisions and buffer backups. Clients are assigned unique IDs, based upon a mapping from the system address space allowing identification needed for quick routing of packets among clients.

The invention relates to the technical field of data transmission of a DTN network, and particularly to a UKF (Unscented Kalman Filter) based aerospace DTN network bundle transmission delay estimation algorithm. The UKF based aerospace DTN network bundle transmission delay estimation algorithm provided by the invention comprises the steps of A, describing real-time change of link parameters; B, analyzing composition of bundle RTT (Round Trip Time; C, building a UKF based RTT estimation model; and D, working out a retransmission timer RTO setting strategy. As point-to-point bundle RTT of a BP-layer storing-forwarding mechanism in the aerospace DTN network is analyzed, the time-changing composition is tracked by utilizing the UKF, a random sudden delay is regarded as noise filtration and an exact retransmission timer is set on the basis, the bundle on a node can be released rapidly, rapid transmission of the bundle is facilitated, and transmission delay of documents is improved.

The invention relates to the field of communication and discloses a data submission method, device and system, which are capable of dynamically adjusting the submission method according to the number of concurrent sockets in a network so that the data transmission rate is improved. The data submission method includes the following steps: a terminal receives data sent by a network side, wherein the data includes a socket set which is a set of data-sending network socket numbers; according to the socket set and a socket list which records socket numbers carried in historic data, the number of sockets which send data currently is obtained; when the number of the sockets which send data currently is smaller than a preset threshold N1, data is submitted according to an ordered submission method; and when the number of the sockets which currently sends data is larger than the preset threshold N1, the data is submitted according to a non-ordered submission method. The data submission method is used for submission of terminal-side data.

The invention discloses user equipment, network side equipment and a control method for the user equipment. The method comprises the following steps of generating uplink and downlink control information of the user equipment; adding the generated uplink and downlink control information into a downlink control signal; and sending the downlink control signal to the user equipment in order to indicate the user equipment to configure corresponding parameters according to the uplink and downlink control information to carry out data transmission with a network side. According to the scheme, the flexibility of configuration of the user equipment can be improved.

The embodiment of the invention discloses a computerized numerical control alliance bus system, a coupler and a communication method. The communication method comprises the following steps of: firstly obtaining the current data frame, wherein the current data frame carries indication information used for indicating type of the current data frame; and then selecting a software processing module or a hardware processing module for carrying out processing on the current data frame according to the type indicated by the indication information, thus the coupler adopts a software hardware coprocessing method, differential processing means are adopted according to the data frames of different types in the NCUC-Bus (nonlinear computing unit cascade) standard, hardware inner core processing forwarding is adopted for the data frame with high real-time requirement, software inner core processing and forwarding is adopted for the data frame with low real-time requirement, and real-time performance of a field bus is improved to the utmost extent, therefore, correlation between quantity of slave stations and data frame loop transmission delay in an annular link is greatly weakened, and increase of the slave stations hardly can cause the increase of the data frame transmission delay.

The present invention discloses a method and device of fault recovery based on super-fusion configuration. The method comprises: collecting parameter information of each host in a super-fusion configuration platform and module information included by each tenant; comparing the parameter information of the hosts with preset fault parameters, and determining whether there is a host required being subjected to tenant migration or not according to a comparison result, if yes, generating a migration event, wherein the migration event carries a source host required being subjected to tenant migration and identification information of a target host; and selecting corresponding tenants to be migrated from the source host according to the type of the migration event, taking all the modules included by each tenant to be migrated as a migration object, and uniformly migrating the migration object into the target host according to the identification information of the target host. The method and device of fault recovery based on super-fusion configuration can migrate a plurality of modules included by the tenants into the same target host to avoid excessive flow hop count so as to avoid time delay increasing of network transmission and improve the transmission efficiency.

A packet communication system includes a communication control apparatus 8 for searching for an IP address corresponding to a destination telephone number when receiving a connection request including the destination telephone number from a VoIP terminal, and a multiplexing control apparatus 9 for identifying both a multiplexing transmission apparatus 11 or 10 which manages a VoIP terminal associated with the address searched for by the communication control apparatus 8, and a multiplexing transmission apparatus 10 or 11 which manages the VoIP terminal which is the transmission source of the connection request, and for notifying each of both the identified multiplexing transmission apparatus 10 and 11 of the address of the multiplexing transmission apparatus 11 or 10 on the other end of connection and the address of the VoIP terminal.

The invention provides a transmission strategy method based on Nash equilibrium in cooperative communication. According to existing research, only a favorable factor (increase of the transmission rate) brought by a relay node is considered, an adverse affect (cooperation competition) possibly brought by introduction of the relay node is ignored, and therefore the performance of a wireless network is not effectively improved. According to the method, the favorable factor and the adverse affect of the selected relay node are comprehensively considered, a non-cooperative game theory is used, effects on service flows adopting different transmission strategies are considered, the service flows select the transmission strategies more flexibly and effectively, benefits of the service flows are guaranteed, meanwhile the system performance is maximized, the throughput capacity of a system is effectively improved, and the problem that the system performance declines due to blind cooperation is solved.

Provided are a service transmission method and device, a terminal and a base station, the service transmission method comprising: when transmission directions on different carriers conflict, determining a target transmission direction according to at least one of a preset service type priority and a preset transmission priority; and transmitting the service in the target transmission direction. According to the embodiment of the invention, when the transmission directions on different carriers conflict, a half-duplex terminal can determine the target transmission direction according to at least one of the preset service type priority and the preset transmission priority, and the half-duplex terminal transmits the service in the target transmission direction, thereby avoiding increasing thetransmission delay of the URLLC service when there is a transmission direction conflict between different carriers.

The invention discloses a service data preprocessing method and system. The method comprises the following steps: updating, by a sequence processing unit (SPU), capability configuration information ofcurrently stored corresponding carriers according to an updated scheduling capability indication reported by a radio access unit RAU in real time; within each scheduling period, according to the principle of preferentially processing low-delay service data in a local cache, generating RLC PDU by using the data in the local cache and according to the capability configuration information of the currently stored corresponding carriers, and placing the RLC PDU in a corresponding low-delay service data queue or an ordinary service data queue; for the low-delay service data queue, sending the RLC PDU to the corresponding RAU by using a preset low-delay sending mode; and for the ordinary service data queue, sending the RLC PDU to the corresponding RAU by using a preset ordinary sending mode. Byadoption of the service data preprocessing method and system disclosed by the invention, the coupling correlation between the RLC and an MAC protocol layer can be greatly reduced, so that the SPU andthe RAU can be deployed independently.

The invention discloses a P2P streaming media node selection method based on a greedy algorithm, and belongs to the technical field of P2P streaming media. According to the method, overall optimization is mainly converted into a plurality of local optimization problems; the service node is quickly selected, the uplink bandwidth, the downlink bandwidth, the node online duration, the node distance and the node service capability of the node are comprehensively considered, and the service node with the maximum capability is selected, so that the transmission delay is reduced, the throughput of the service node is improved, and the overall performance of the system is effectively improved.

The invention discloses a parking area-based spider web routing protocol in an urban VANET, which comprises the following steps: 1, respectively selecting a source road intersection point and a targetroad intersection point, constructing a quadrilateral spider web model area, constructing a parking area-based spider web model layer by layer in the model area, and selecting an optimal transmissionpath; 2, according to the characteristic that the position of the parking area is fixed, dividing nodes with communication capability in the whole network into two types, namely a fixed node and a mobile node, and dividing the nodes into two modes, namely a fixed node mode and a mobile node mode; after the transmission path is selected, performing data forwarding along the path by utilizing a multi-mode greedy algorithm; and 3, when the data packet arrives at the current vehicle forwarding node, placing the data packet into different message queues according to different priorities of the data packet, dynamically adjusting the data packet, and quickly processing the emergency data packet. According to the invention, the parking area and the spider web model are combined to construct a newspider web transmission model based on the parking area, and the transmission time delay and delivery rate of the data packet are obviously improved.

The embodiment of the invention provides a message processing method, which is applied to base station equipment. The method comprises the following steps: receiving power headroom of terminal equipment reported by the terminal equipment; determining a transmission power state of the terminal device according to the power headroom; if it is determined that the sending power state of the terminal device is a first state, modifying the maximum message length in a handshake message to a target maximum message length in a process of establishing a transmission control protocol (TCP) connection with the terminal device; and establishing a TCP connection with the terminal device based on the target maximum message length. According to the embodiment of the invention, the transmission delay of the TCP message can be reduced.

The invention relates to a data transmission method and device, a network device and a storage medium. The method comprises the following steps: determining whether received service data is service data of a vertical industry or not; if yes, packaging or de-packaging a header field of a GTPU for the service data according to a destination IP address of destination equipment carried in the service data to obtain target service data; the GTPU header field carrying a tunnel endpoint identifier (TEID) and a data flow identifier (QFI) which are used for transmitting the service data; and transmitting the target service data according to the target IP address. By adopting the method, the transmission delay of the service data of the vertical industry can be reduced, and the transmission reliability of the service data is improved.