46results about How to "Reduce round trip time" patented technology

A wireless communication system uses a circuit switched link between a wireless unit and a base station to establish a data session with a network device in a packet data network. After the data session is established, the data session can proceed using a packet switched link between the wireless unit and the base station. By using the circuit switched link to send data session setup packets, the system avoids the delay associated with requesting and being allocated wireless resources in sending the setup packets using the packet switched link. Decreasing the delay associated with setting up the data session improves the data rate and throughput between the wireless communications system and the packet data network. For example, in an exemplary CDMA system, a circuit switched link is established to carry primary traffic (such as voice) and secondary traffic. The setup packets for the data session can be directly sent as secondary traffic on the circuit switched link, thereby avoiding the delay associated with sending the setup packets over a packet switched link. In this way, the round trip time (RTT) associated with setting up the data session can be reduced to improve the overall data rate and throughput through the wireless network to the packet data network.

There is provided a radio system comprising a remote network element, a packet control unit and a mobile station, the radio system being configured to communicate control blocks and data blocks between the mobile station, the packet control unit and the remote network element, the control blocks controlling data transmission in the radio system. The packet control unit is configured to determine which given packet control unit functionalities related to the transmission of given control or data blocks are to be distributed from the packet control unit to a remote net-work element, and to provide to the remote network element control information on which packet control unit functionalities are distributed to the remote network element; and the remote network element is configured to perform the given packet control unit functionalities for given control blocks or data blocks on the basis of the control information received from the packet control unit.

There is provided a radio system comprising a base station, a packet control unit and a mobile station, the radio system being configured to communicate control and data blocks between the mobile station, the packet control unit and the base station, the control blocks controlling data transmission in the packet radio system. The packet control unit is configured to determine which given packet control unit functionalities related to the transmission of given control or data blocks are to be distributed from the packet control unit to the base station, and to provide to the base station control information on which packet control unit functionalities are distributed to the base station; and the base station is configured to perform the given packet control unit functionalities for given control or data blocks on the basis of the control information received from the packet control unit.

A method of controlling an elevator installation with several elevators, in which destination call inputs of passengers are input by destination call input apparatus and in which at least one traffic criterion, which characterizes a traffic intensity, of the elevator installation is measured by an elevator control, wherein the elevator control allocates cost-optimizing elevators to the destination call inputs. In order to obtain an energy saving without prejudicing the transport capacity of the elevator installation, the elevator control additionally allocates energy-optimizing elevators to the destination call inputs in dependence on the traffic criterion.

A self rotating deployed film solar batteries array is composed of film solar batteries, electrical cables, a center axle and connecting lines: many long strip shaped film solar batteries radiate to form a circle or a polygon-array, when linking two adjacent film solar batteries with connecting lines, each film solar battery links to a center axle with electrical cables; film batteries deployed and maintained in an array shape by self rotating centrifugal force in space; film batteries are coiling outside the surface of a center axle before their deployment. The unite weight of thin film battery is only 1/30 of traditional solar cell paddle. The film solar batteries array can be used in various satellite, space station and solar power rocket. It will greatly reduce the launching cost, enhance the power for spacecrafts and double the length of service life.

The embodiment of the invention provides a data transmission method and device, a medium and electronic equipment. The data transmission method includes: periodically detecting round trip time and/ora packet loss rate at the time when data packets are transmitted through a network; and in a case where the transmitted data packets carry redundant data packets, reducing or stopping the carried redundant data packets when frequency of detecting a situation that the round trip time is less than preset round trip time and/or the packet loss rate is less than a preset packet loss rate is greater than or equal to set frequency. Through the method of carrying the redundant data packets in the transmitted data packets, and reducing or stopping the carried redundant data packets when a case where the frequency of the situation that the round trip time is less than the preset round trip time and/or the packet loss rate is less than the preset packet loss rate is greater than or equal to the setfrequency occurs, the technical solution of the embodiment of the invention increases sending frequency of the redundant data packets when a network environment is poorer, reduces the packet loss rate, then shortens the round trip time, reduces delay, and improves user experience.

The invention relates to a fire evacuation operation device for group-controlled elevators, allowing a large number of people to evacuate in a short time. In the fire evacuation operation device for group-controlled elevators, the floors to be served are divided into service zones, the elevators serve from an entrance floor to each of the service zones, and when a fire detector placed at each floor detects fire, the device causes each elevator to stop at the nearest floor. The fire evacuation operation device has an evacuation operation possibility determination means (1B), a rescue floor setting means (1C), and an evacuation operation instruction means (1D). When a fire occurs, the evacuation operation possibility determination means (1B) determines that elevators serving a zone including a floor where the fire has occurred cannot perform evacuation operation, stopping operation of the elevators after they stop at the nearest floors, and also determines that elevators serving zones not including the floor where the fire has occurred can perform the evacuation operation. The rescue floor setting means (1C) sets, for the elevators that are determined to be able to perform the evacuation operation, rescue floors according to the floor where the fire has occurred. The evacuation operation instruction means (1D) assists evacuation of people in a building by making the elevators, determined to be able to perform evacuation operation, reciprocate between the entrance floor and the rescue floors.

The present invention relates to a method and a telecommunication system for allocation and priority handling and a Node-B in the system enabling said method. The telecommunication system comprises at least one radio network controller (RNC) 12,12',12'', and at least one Node-B (NB) 11,11',11'' for enabling wireless communication with at least one user terminal (UE) 15. The RNC 12,12', 12'' establishes at least one enhanced dedicated transport channel (E-DCH) which enables uplink data traffic with a determined maximum data rate from the user terminal (UE) 15 to the Node-B (NB) 11,11', 11''. The RNC 12,12',12'' further establishes at least one high speed DL shared channel (HS-DSCH) which enables downlink data traffic with a determined maximum data rate from the Node-B (NB) 11,11',11'' to the user terminal (UE) 15. The Node-B (NB) 11,11',11'' comprises a HSDPA scheduler (HS-S) scheduling the data rate for the DL data traffic via the HS- DSCH and a EUL scheduler (EUL-S) scheduling the maximum data rate for the UL data traffic via the E-DCH. What particularly characterizes the invention is that the Node-B (NB) 11,11',11'' exchanges data rate information between the HSDPA scheduler (HS-S) and the EUL scheduler (EUL-S). Furthermore, the Node-B (NB) 11,11',11'' monitors the quotient (Q) between DL data rate and the UL data rate. Finally, when Q fulfils determined traffic conditions the HSDPA scheduler (HS-S) and/or the EUL scheduler (EUL-S) changes the allocation and/or the priority handling of the UL and/or the DL resources.

The invention discloses a symmetrical deflection type double-bridge crane. The symmetrical deflection type double-bridge crane comprises a supporting frame, a traveling mechanism, a longitudinal moving frame, two transverse deflection beams and a plurality of storage boxes. The supporting frame serves as a bracket of the whole crane; the traveling mechanism is used for driving the supporting frameto travel on the ground; the longitudinal moving frame is a quadrilateral frame, the quadrilateral frame is mounted on the supporting frame through lifting devices, the two transverse deflection beams are mounted on the quadrilateral frame through a longitudinal horizontal-moving device, and the longitudinal horizontal-moving device drives the transverse deflection beams to move in the longitudinal direction of the quadrilateral frame; and the storage boxes are used for rising and falling along with the lifting devices to hook box bodies serving as cargos and mounted on the two transverse deflection beams through transverse horizontal-moving devices, and through the lifting devices, the transverse horizontal-moving devices and the longitudinal horizontal-moving device, the storage boxes can move in the space area where the supporting frame is located so as to complete hoisting of the cargos. The symmetrical deflection type double-bridge crane is simple in structure, a plurality of targets can be hoisted and placed through the single stroke, and the carrying efficiency is high.

There is provided a method of transmitting signaling messages. In accordance with an embodiment of the invention, the method is performed by a first base station of a communication network. The first base station and the second base station of the communication network provide simultaneously a service to a terminal. The first base station transmits signaling messages relating to the provision of the service to the second base station via a relay component. The relay component is linked with the first base station and the second base station via radio links of the communication network. The relay component may be comprised in the terminal to which the service is provided or another terminal with corresponding functionality or a dedicated relay component of the communication network.

The invention discloses an intelligent sock production line which comprises a plurality of rows of sock machines, a conveying device, a yarn feeding drum device, a sock distribution device and a pedal plate, wherein the pedal plate and the conveying device for conveying a sock are arranged between every two rows of the sock machines, the pedal plate is arranged above the conveying device, the sock distribution device is arranged at the rear end of the conveying device, and the yarn feeding drum device is arranged above the every two rows of sock machines. Compared with the prior art, the manpower is saved, and the production efficiency is improved.

An elevator operation system and apparatus reduce the round trip time of an elevator, by determining a target floor that corresponds to the destination floor requested by a passenger; and assigning the target floor to one of a plurality of elevators for service exclusively to the target floor.

A method for protecting the integrity of log data. The log data includes a sequence of log data elements associated with an operation of a first logic circuit. The method includes receiving, at a second logic circuit remote from the first logic circuit, a log data element of the sequence of log data elements. Based on the log data element and secret information unknown to the first logic circuit, a protected log data element is generated at the second logic circuit is provided.

The invention provides a forward error correction for Bundles of a spatial DTN network based on LDPC coding and decoding. Through carrying out research and analysis on end-to-end transmission in the conventional aerospace network environment, an LDPC code and a BP protocol in the DTN communication network are combined, the excellent coding and decoding performance of the LDPC code is applied to the DTN network, and according to a retransmission content, a retransmission mechanism is divided as follows: a receiving end carries out feedback and retransmission on all lost data packets including an original packet and extra packets; and the receiving end only carries out feedback and retransmission on the original packet with the failed iterative decoding recovery. Through adoption of two retransmission modes, the round number of the whole transmission is greatly reduced under the same parameter configuration and the round-trip time is reduced. The link resources are very limited and precious for an aerospace communication network, so that more spaces can be saved for transmission of other information.

The disclosed embodiments provide a system that processes network packets. Upon receiving a first Transmission Control Protocol (TCP) header for a first TCP segment from a network link, the system immediately provides a portion of the first TCP header to a transport layer prior to receiving all payload data for the first TCP segment. Next, the system uses the transport layer to transmit a first acknowledgment of the first TCP segment to the network link, wherein the first acknowledgment reduces a round-trip time (RTT) associated with the first TCP segment.

The invention is directed to a computer-implemented system and method for transmitting data from a first node to a second node of a source-selected path routing network. In said system and method according to the present invention, a first data packet is received at the first node, wherein said data packet was sent from a source node according to next-hop routing. Subsequently, at least part of the data contained in the data packet is transmitted from the first node to the second node according to source-selected path routing. Finally, the data received at the second node is transmitted to a destination node according to next-hop routing. Said system and method is further characterized by the steps of determining, for at least a subset of a plurality of available paths between the first node and the second node, a plurality of path parameters; determining a plurality of attributes related to the first data packet; selecting a preferred path from the plurality of available paths based on a decision rule, said decision rule specifying, for at least one attribute, a preferred range of path parameters; and remotely determining the second node based on destination information related to the destination node, wherein said destination information is extracted from the data packet.