426results about How to "Avoid discarding" patented technology

Disclosed herein are a method and apparatus for monitoring UE reachability in a wireless communication system. A method for monitoring UE reachability may include receiving, by a Mobility Management Entity, a monitoring request message for UE reachability including a maximum response time from a Home Subscriber Server, detecting, by the MME, the UE reachability if it is expected that paging is able to be transmitted to UE when extended Discontinuous Reception is applied to the UE, and sending, by the MME, a UE reachability notification to a Service Capability Exposure Function before a next paging occasion of the UE, wherein the maximum response time may indicate a time during which the UE maintains a reachable state so that downlink data is reliably delivered to the UE, and wherein an occasion when the UE reachability notification is transmitted may be determined by taking into consideration the maximum response time.

When retransmission requests are issued based on the results of error-correction decoding of received data packets to perform data transmission, statistical information indicating whether received data packets have been successfully decoded or have not been decoded is acquired, and based on the rate at which correct decoding has been made or the rate at which correct decoding has not been made, which is obtained from the statistical information, a request is transmitted to the transmission source to change the window size, which is the number of data units handled in a predetermined layer, so that when for example the communication environment is not excellent, processing can be performed at a small window size, and the occurrence of circumstances in which data retransmission and the discarding of received data are repeated can be efficiently prevented. Accordingly, data transmission efficiency in a wireless transmission system performing high-speed data transmission is improved under conditions of a poor radio wave environment.

A communication node which can reliably transfer a packet with a payload including data having error resistance in radio environments is disclosed. A packet to be transmitted is divided into segments to form a plurality of packet segments. From among a plurality of error correction schemes that have been prepared in advance, the scheme to be employed is selected for each of the packet segments in accordance with predetermined criteria, and the selected error correction scheme is applied to each packet segment. Subsequently, the processed packet segment is transmitted to the network. Packet segments are received from the network. From among a plurality of error correction schemes prepared in advance, the scheme to be employed is selected for each of the received packet segments based on predetermined information contained in each received packet segment, and the selected error correction scheme is applied to the received packet segment. An original packet is formed from the plurality of processed packet segments.

Broadband switching networks are disclosed, which has a plurality of broadband switch nodes and a broadband switch inter-node transmission line for connecting the plurality of broadband switch nodes, information being transmitted by cells, each of which comprises a header and an information field, wherein the broadband switch node comprises a broadband input and output port for inputting and outputting the cells to and from the broadband inter-node transmission line, and a switch for separating the cells being input through the broadband input and output port and for multiplexing the cells so as to output them, wherein data composed of the plurality of cells is transmitted and received through the broadband switch node by constant bit rate transmission, variable bit rate transmission, or a combination of the constant bit rate transmission and the variable bit rate transmission.

The invention discloses an uplink control information transmission method and device. A UE side method comprises the steps that when UE is configured to use a PUCCH format 3 for transmitting ACK/NACK information and does not receive a PDCCH used for indicating a PUCCH format 3 channel resource corresponding to ACK/NACK, or when more than one carrier is configured on the UE and the UE is configured to use a PUCCH format 1b with channel selection for transmitting the ACK/NACK information, the UE generates the ACK/NACK information; period channel state information (CSI) is generated; the period CSI and the ACK/NACK information are transmitted on a channel resource corresponding to the period CSI through the same uplink subframe. The uplink control information transmission method and device prevent the period CSI from being discarded and improve the accuracy of downlink scheduling of a base station.

The problem of routing micro-loops in networks having a CLOS topology, such as data center CLOS networks employing the exterior border gateway protocol (eBGP) for example, is solved by: (a) receiving, on an interface of one of the nodes, a datagram, the datagram including destination information; (b) determining a next hop and an egress interface using (1) an identifier of the interface on which the datagram was received, (2) the destination information of the received datagram, and (3) stored forwarding information such that a routing micro-loop is avoided without discarding the datagram; and (c) forwarding the datagram via the egress interface. For example, this problem may be solved by (a) receiving, on an interface a node of the CLOS network, a datagram, the datagram including destination information; (b) looking up, using the destination information of the received datagram and stored forwarding information, a next hop egress interface on the node; (c) determining whether or not the next hop egress interface on the node is the same as the interface on which the datagram was received; and (d) responsive to a determination that the next hop egress interface on the node is the same as the interface on which the datagram was received, (1) replacing the next hop egress interface with a safe multipath next hop egress interface, and (2) forwarding the datagram via the safe multipath next hop egress interface, and otherwise, responsive to a determination that the next hop egress interface on the node is not the same at the interface on which the datagram was received, simply forwarding the datagram via the next hop egress interface.

The invention discloses a method for preventing the stack system from generating a loop and member equipment in the stack system. The method comprises the following steps that: the member equipment in the stack system receives a message from a stack port and judges whether the received message is a known unicast message; if the received message is a known unicast message, the member equipment in the stack system forwards the message; and otherwise, the member equipment in the stack system detects the loop in the received message and discards the received message if loop generation is detected or forwards the received message if loop generation is not detected. The method can prevent a reoriented message from being discarded by mistake when the reoriented message receives the loop detection and avoid influences on the effect of loop detection.

The embodiment of the invention discloses a data transmission method based on an LAA (Licensed-Assisted Access) system. The method comprises the following steps: receiving an upload time slot allocated by a base station, wherein at least one upload time slot is allocated; generating a data volume parameter corresponding to a starting moment of the upload time slot; detecting whether an uplink transmission channel of an unauthorized frequency spectrum is occupied or not, and acquiring the data volume parameter corresponding to the starting moment of the upload time slot at the arrival of a first upload time slot after the upload transmission channel is detected to be not occupied; and generating data packets according to the acquired data volume parameter, and uploading the data packets to the base station through the uplink transmission channel of the unauthorized frequency spectrum. The invention also discloses a data transmission device based on the LAA system. Through adoption of the data transmission method and device based on the LAA system, the resource utilization ratio of channel resources can be increased.

There is provided a mechanism for controlling a transmission of data in a fragmentation transmission mode. When fragments are transmitted in a fragmentation transmission mode, it is determined whether the fragment frame is received successfully or whether an acknowledgment message for confirming a successful transmission of the fragment frame is received. In case the acknowledgment for the successful transmission of the one fragment frame is not received, or the fragment is frame is not successfully received, the fragmentation transmission mode is maintained and a retransmission of the fragment frame is initiated.

Charging and discharging lines for a rechargeable battery are arranged independently from each other, and as a protection circuit for the rechargeable battery, there are provided a nonreturn-type switch (for example, thermo-fuse with an internal heater) that is interposed in the charging line in series and interrupts the charging line by blowout and a semiconductor switch (for example, MOS-FET) that is interposed in the discharging line in series and electrically continues or interrupts the discharging line. The switch control circuit turns off the semiconductor switch element when detecting overdischarge of the rechargeable battery, and blows out the nonreturn-type switch when detecting overcharge of the rechargeable battery or a malfunction of the semiconductor switch element.

A system includes: a unit printing on a medium; a unit cutting the medium; a unit comparing data of two adjacent images on the medium; a unit selecting, based on the comparison, a first process adjacently printing the two images or a second process printing the two images with a cutting region therebetween; and a unit generating, for each cutting position, cutting indicating data indicating a cutting process of the cutting unit by corresponding a first cutting process to a cutting position corresponding to the first printing process and corresponding a second cutting process to a cutting position corresponding to the second printing process; and a unit generating printing data based on image data and the selection, wherein the printing unit selects the first or second printing process and prints, and the cutting unit selects the first or second cutting process and cuts.

The invention discloses a device for dispatching a real-time service and a method thereof, which comprises: according to the types of different real-time services, SDU queues are established respectively; the SDU is put in the corresponding SDU queues respectively; priority of the SDU queues is set, and the SDU in the SDU queues is uniformly put in the SDU queues in sequence according to the priority; and the SDU in the SDU queues is dispatched uniformly. In the dispatching method of the invention, time limit coefficient and the uniform SDU queues are introduced, SDU which has pressing time requirement can be guaranteed to be dispatched in time, being lost can be avoided for overtime of dispatching, better time guaranteeing performance is provided, and the effects can be realized that the rate of losing packet is lowered and time delay requirement can be guaranteed.

A method of starting Integrity Protection in a receiving end of a radio communications system starts with receiving a first Radio Resource Control (RRC) message for starting Integrity Protection. Then, a first Signaling Radio Bearer (SRB) is used to output a second RRC message to a network end of the radio communications system for indicating completion of starting Integrity Protection. Finally, a second SRB is prohibited from transmitting a third RRC message before receiving a confirmation message from the network end acknowledging successful receipt of the second RRC message.

A first type of UCI that needs to be transmitted in a current subframe is generated by a terminal device; a second type of UCI that needs to be transmitted in the current subframe is generated on the basis of a threshold number of bits simultaneously transmitted with the UCI in the current subframe and of the number of bits transmitting the first type of UCI; the first type of UCI and the second type of UCI generated are transmitted on corresponding channel resources in the current subframe.

The invention discloses a data packet transmission method and device. The data packet transmission method and device relate to the technical field of communication and enable the phenomenon that too many data packets are lost in a congestion management period when congestion suddenly occurs between devices or between modules of the devices to be improved. The method includes: when data packet congestion occurs when or a network bandwidth is reduced, determining at least one data packet to be abandoned in a data caching; abandoning the at least one data packet to be abandoned so that at least one data packet which is not cached enters the data packet caching and thus preventing too many data packets, which are not cached, from being abandoned, wherein the data packets which are not cached are the data packets which do not enter the data caching. The data packet transmission method and device are mainly applicable to the data packet caching process.

The invention discloses a method and a system for achieving network address translation, which relates to the technical field of network communication. The method comprises the steps of: S1, receiving a current datagram requiring network address port translation, achieving translation of an inner network IP (internet protocol) address and a public network IP (internet protocol) address of the current datagram, wherein the public network IP address of the current datagram comprises N port queues, and N is an integer greater than 1; S2, selecting one port sequence in the N port queues according to an outer network IP address of the current datagram, and selecting a port which is not distributed in the selected port queue as a public network port number of the current datagram. According to the invention, judgment of a target IP is increased on a conversion method of PAT (port address translation); the same port number can be adopted as to different resources; multiplexing of the port is achieved; the different resources are expanded for N times relatively to the port resource, and the datagram is prevented from being abandoned due to exhausting of the port resource.

The invention discloses a feedback information and multi-path routing based wireless sensor network data transmission method which comprises a feedback information based safety routing structure, multi-path routing establishment and multi-path routing transmission application. According to the feedback information and multi-path routing based wireless sensor network data transmission method, in the multi-path routing aspect, the multi-path routing protocol of on-demand routing is mainly adopted, and multiple maximum disjoint routing paths are established, and therefore network congestion is prevented, and available wireless sensor network resources are effectively initialized. Through the feedback information based safety routing structure, feedback paths can be obtained from Sink node for an originating node of data transmission. When the originating node receives enough feedback paths from the Sink node, the paths can be utilized for multi-path data transmission with combination of multi-path routing.

The invention discloses a method for establishing a safety mode, comprising the following steps: locking the information confirming function of a radio link controller (RLC) of a radio network controller (RNC) to user equipment (UE) after a radio resource controller (RRC) of the RNC confirms that safety mode control information is successfully transmitted to the UE; transmitting safety mode finishing information to the RNC in a confirming mode after the integral protecting inspection of the safety mode control information is passed by the UE, and carrying out the integral protecting inspectionon the information after the RRC of the RNC receives the safety mode finishing information. If the integral protection fails, after a district update request of the UE is received, RRC connection release information is transmitted to the UE for notifying the UE to release the RRC connection. The method can avoid repeatedly transmitting the RRC CONNECTION RELEASE information because a network sidecannot obtain the confirmation of the connection release of the UE side, so that the signaling connection cannot be released to get into deadlock.

The invention discloses a polymer emulsion interface agent for base layer coating treatment and a preparation method thereof. The polymer emulsion interface agent for base layer coating treatment comprises a component A and a component B. In use, the component A and the component B are mixed according to a weight ratio of 1: 1. The mixture of the component A and the component B is white paint. The component A comprises 0.1 to 0.5% of hydroxyethylcellulose, 0.2 to 0.9% of a dispersing wetting agent, 12 to 19% of quartz powder, 48 to 65% of styrene-acrylic acid ester polymer emulsion, 0.05 to 0.35% of an antiseptic, 0.01 to 0.2% of a mildew inhibitor, 0.05 to 0.25% of a multifunctional auxiliary agent, 0.05 to 0.55% of a thickening agent, 0.1 to 0.5% of an antifoaming agent, 0.2 to 0.7% of a film forming auxiliary agent and 18 to 35% of water. The component B comprises 20 to 38% of wollastonite powder, 15 to 35% of quartz powder and 38 to 55% of quartz sand. Through combining the component A and the component B according to a ratio, the polymer emulsion interface agent for base layer coating treatment has the characteristics of good cohesion and adhesion, high bonding intensity, good closeness, rough surface layer and good adhesiveness with putty.

The invention discloses a control method for data flow transmission route, a device and route equipment. The method comprises the steps of: aiming at the received first message, inquiring if a connection track table for reverse data flow consistent with a first message source address and a target address exists locally, if yes, judging if an interface transferring the first message is arranged asrequiring the control of the reverse data flow transmission route and avoiding transferring by using a route, and if yes, sending the first message to the route equipment corresponding to a next skipping IP address of an outlet interface according to the next skipping IP address of the outlet interface recorded in the connection track table for reverse data flow. The invention solves the problem of message lose caused by the semi-connection because of the unsymmetrical transmission routes of positive data flow and negative data flow under the condition of connecting the route equipment to different ISP.