33results about How to "Prevent throughput degradation" patented technology

A terminal 211 measures pilot signals transmitted in directional (beam) patterns from an adjacent cell and an own cell, and estimates reception qualities with the presence (high) / absence (low) of the interference from the adjacent cell. The terminal 211 requests data rate request values (DRC1, DRC2) corresponding to the reception qualities with the presence / absence of the interference to the base station 201. The base station 201 shares beam direction schedule with an adjacent cell base station, and confirms the presence / absence of interference to the terminal 211 for each slot. In accordance with the presence / absence of the interference, the base station 201 selects a suitable one of the two values of the data rates requested from the terminal 211, and modulates the data and transmits it.

Provided is a communication device capable of controlling the transmission traffic of data voluntarily according to its own receiving ability while reducing its control processing burden. The communication device comprises a communication unit (35) for receiving the data, an ACK generation unit (45) for generating an ACK packet indicating the contents of a response to a transmission side device (38) for the data received by the communication unit (35) and for transmitting the ACK packet to the transmission side device(38), and a window update notice generation unit (46) for generating, irrespective of the reception result of the data by the communication unit (35), a window update notice packet requesting the transmission side device (38) for the transmission of the data and for transmitting the packet to the transmission side device (38).

In a case where an image region to be processing in RGB color space and an image region to be processed in YMCK color space are mixed, if objects converted from RGB representation to YMCK representation are re-converted to RGB representation and RGB rendering is performed, the load on the system is increased, and the throughput of a printing apparatus is degraded. Accordingly, bands to be processed in the RGB color space are separated from print information inputted from a host computer, and pre-rendering is performed on the separated bands. Thereafter, bands to be processed in the YMCK color space are rendered by a rendering processing execution unit. The output order of the data of the respective bands pre-rendered in the RGB color space and that of the other bands are adjusted, and the data are sent to a printer engine.

A method and system for transmitting information between a sending means and a receiving means using packets for information transmission. The receipt of transmitted packets is acknowledged and unacknowledged packets are retransmitted from the sending means. The amount of transmitted unacknowledged information or the number of consecutive unacknowledged packets is detected, and the reason for information or packet loss is determined based on the amount of transmitted unacknowledged information or the number of consecutive unacknowledged packets. This amount is compared with a path maximum transmission unit (PMTU) to determine the reason for loss. A single or small number of unacknowledged packets is determined to be a result of Bit Error Rate (BER), whereas a larger number of consecutive unacknowledged packets may be determined to be congestion. Congestion control parameters are kept unchanged when the reason for loss is caused by Bit Error Rate (BER), whereas control parameters are changed when the reason for loss is congestion.

Wireless communication arrangements including: first base station referring to beam scheduling information including identification information of a beam pattern to be used in each slot by the second base station, selecting, where identification information of the beam area to be used by the second base station in the slot assigned is coincident with the identification information of the first interference beam area received from the wireless terminal, the first data rate received from the wireless terminal, and selects, where the identification information of the beam area to be used by the second base station is not coincident with the identification information of the first interference beam area, the second data rate received from the wireless terminal; a step at which the first base station modulates data in accordance with one of the selected first data rate and second data rate, and transmits modulated data to the wireless terminal.

In a radio-communication system, when wanting to perform high-accuracy scheduling in a base station, a large number of information items, such as channel quality information, desired precoding matrix information and so on, are fed back from a mobile station with a high degree of accuracy. The base station monitors the feedback information and, upon acquisition of it, transmits to the mobile station a certain kind of feedback information which is judged to contribute to scheduling accuracy improvement while preventing the other kinds of feedback information from being sent to the mobile station.

A data retransmitting method includes a packet transmitting step wherein an RNC (4) creates a packet of a desired size by using a data packet, and transmits the packet to a BTS (2) storing the destination UE (1) of the packet, in a wireless communication system; a reception result notifying step wherein the BTS (2) transmits the received packet to the UE (1), and the packet reception result obtained from the UE (1) is notified to the RNC (4); a data packet transmission result judging step wherein the RNC (4) judges, based on the reception result, whether the data packet that corresponds to the packet transmitted to the BTS (2) correctly reached the UE (1); and a data retransmitting step of retransmitting the data packet, which the RNC (4) judged not correctly reached the UE (1), through a handover destination BTS (3), in a case where the UE (1) performed handover.

A coating device including a substrate carrying unit which rotatably holds a substrate while the substrate is upright and is able to dispose the held substrate at a first position and a second position; an application unit which includes a liquid material nozzle ejecting a liquid material to each of first and second surfaces of the substrate disposed at the first position; and a removal unit which includes an accommodation mechanism accommodating a part of the peripheral edge portion of the substrate disposed at the second position and a cleaning liquid ejection mechanism ejecting a cleaning liquid to the peripheral edge portion and removes the liquid material of the peripheral edge portion.

Provided is a wireless communication device capable of setting a wireless LAN base station so that the overall frequency utilization efficiency of a wireless communication system including wireless LAN base stations of different models of different manufacturers can be improved. A wireless communication system that performs settings necessary for operating a wireless LAN base station constituting a wireless communication network includes an information collecting unit that collects setting information set in the wireless LAN base station and a wireless environment in the wireless LAN base station. information; a parameter calculation unit that obtains parameters that should be set for the wireless LAN base station of the collection source based on the collected setting information and wireless environment information; and a parameter setting unit that transmits the required parameters to the wireless LAN base station of the collection source via the network. Get the parameters and set the parameters.

The invention provides a recording device and a control method of the recording device. The recording device comprises a recording head (18) and a recording head moving part of a bracket driving motor (35) for reciprocating motion of the recording head (18). A CPU (61) is used for control to record media in a moving scope of the recording head (18) and to move the recording head (18) to perform recording at the same time. The CPU (61) makes the recording head (18) cross the edge of the recording media to move to a recoding starting position of a recording medium (100) when at the beginning of recording, the recording head (18) is deviating from the position of the recording medium. Based on a moving starting position, an upper limit of a moving speed of the recording head (18) is changed into a speed lower than a set upper limit speed. Accordingly, faults caused by the stranding of the recording head on the recording media can be avoided and higher recording quality can be kept.

Disclosed are a terminal, a base station, a response method, and a retransmission control method, which are capable of switching the response signal transmission method while preventing throughput degradation and without increasing the number of signaling bits. A bundling determination unit (132) of a terminal (100) determines parameters that denote the allocated resource quantities that are allocated thereto from a base station (200), or in other words, a downstream band that is included in a bundling group and a downstream band that is not included in the bundling group, from among a plurality of downstream bands on the basis of base station transmission parameters. Specifically, a degree of resource share (Xn) that is allocated from each respective downstream band to the terminal (100) is employed in the base station transmission parameters.

A communication terminal apparatus can perform an appropriate system operation at the network side and also can avoid a reduction in throughput and a reduction in system efficiency. In this apparatus, a compressed mode calculating part (124) determines, based on compressed information and slot format information, a slot that is a gap in a frame of a compressed mode. A transmission power control part (125) establishes a transmission power obtained by increasing, by Delta Pilot, the transmission power as designated and set by a TPC command for the slots other than the gap in the frame of the compressed mode. A DPCCH transmission power reporting part (127) outputs, to a channel encoding part (128), a report value indicative of the transmission power obtained by removing the effect of Delta Pilot from the transmission power established by the transmission power control part (125).

Disclosed is a wireless communication system capable of minimizing the hand-off throughput for wireless communication systems. The wireless communication system according to the present invention includes a first communication device for carrying out an inquiry and paging with respect to a wireless communication device located within a communication allowance range, and starting a connection with the wireless communication device; and a second communication device for receiving and transmitting data with the wireless communication device when the wireless communication device connected with the first communication device is cut off by a hard hand-off.