70 results about "Throughput degradation" patented technology

The present invention discloses a method and a device for transmitting information on a physical uplink control channel (PUCCH). The method includes the following steps: a user equipment (UE) selects information from channel state information (CSI) to transmit (S1); the information selected from the CSI is transmitted on the PUCCH with one or both of hybrid automatic retransmission acknowledgment information and a scheduling request (S2), which enables a base station to obtain not only the information in the CSI but also one or both of the hybrid automatic retransmission acknowledgement information and the scheduling request from the PUCCH. The present invention avoids the problem of system downlink throughput degradation caused by dropping all CSI by the UE in the prior art, and avoids the problem that system downlink throughput is influenced by unnecessary data retransmission on a downlink carrier caused by ACK / NACK bundling among carriers.

In order to settle a problem of suppressing degradation of a throughput of a communication system, a communication device is provided with a reception means which receives and accumulates a first datum which a first device transmits addressing a second device and a second datum which the second device transmits, a transmission means which transmits the first datum to the second device, a quality index acquisition means which acquires a first index which is a quality of communication between the first device and the second device and a second index which is a quality of communication between the communication device and the second device, and a judgment means which forces to transmit the accumulated first datum to the second device using the transmission means in the case of judging that the second index is better than the first index and a reception condition of the second datum shows that the second device does not receive normally the first datum.

The invention discloses an antenna downward inclination angle determination method and device based on a geographic information system (GIS). The method comprises the following steps: determining an equivalent coverage radius of a cell of each base station according to base station location information in the GIS and the Thiessen polygon principle and determining a maximum coverage radius of the cell of each base station according to an application scene which the cell of each base station is located in; when the equivalent coverage radius is ascertained to be smaller than or equal to the maximum coverage radius, determining the antenna downward inclination angle of the base station which the cell belongs to based on the equivalent coverage radius; and when the equivalent coverage radius is ascertained to be larger than the maximum coverage radius, determining the antenna downward inclination angle of the base station which the cell belongs to based on the maximum coverage radius. According to the technical scheme of the antenna downward inclination angle determination method and device based on the GIS, the problems, that handling capacity in a border cell is reduced and a resource usage ratio is low, caused by unreasonable arrangement of the antenna downward inclination angle of the base station in same-frequency networking in a time division-long term evolution (TD-LTE) system can be avoided, same and adjacent channel interference among cells can be reduced effectively and network service quality and user experience effects are improved.

Flushing regions for receiving ink droplets to be ejected when flushing signal is supplied to a recording head are provided in both of non-print regions situated at both sides of print region in order to prevent throughput during the flushing operation from deteriorating. A guide member having a slant surface is disposed between the recording head and an ink absorbing member to which the ink landed on the slant surface flows in order to reduce in size of the ink absorbing member. A porous sheet member closely faced to nozzle orifices of the recording head for receiving the ink droplets ejected therefrom is provided in order to prevent undesired mist of fine ink droplets from generating. A plurality of plate members closely faced to the nozzle orifices are provided at a predetermined angle with respect to the flight direction of the ink droplets in order to prevent the undesired mist from generating. The flushing operation is performed so as to prevent solidification of the ejected ink.

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.

Provided is a terminal whereby the accuracy of CSI measurement results in the terminal can be assured, and declines in throughput prevented. In this terminal, a reception processor (203) receives reference signals respectively transmitted from a plurality of transmission points. A CSI generator (206) identifies a second subframe on the basis of a first subframe respectively established for each of the plurality of transmission points, and using the reference signals from the plurality of transmission points, generates channel information in a subframe other than the second subframe, without generating channel information in the second subframe. A transmission signal former (208) transmits the generated channel information.

The embodiment of the invention provides a method and a device for establishing a data service model. The method comprises: when the number of users is not greater than a first threshold value, adopting a first data service model to describe the increase of cell throughput along with the increase of the number of the users, and to describe a process in which an individual user throughput decreases; when the number of the users increases and exceeds the first threshold value, adopting a second data service model to describe decrease of the cell throughput, and to describe the process in which the individual user throughput decreases; and acquiring the best relation between the number of the users and the throughput according to the first data service model and the second data service model. The data service model is established in a statistical manner, the Markov process is not used as the basis, and the model is proposed based on actual test results; meanwhile, parameters alpha and beta of the model can be corrected according to a scene, so that the model has a broader application range; and based on the data service model, the relation between the number of the users and the throughput is described and the maximum cell throughput is predicted.

The detected temperature t at the end in the longitudinal direction of the heating body is compared with the threshold value Th, and the printing speed (throughput) is controlled based on the comparison result. The threshold Th is switched according to a predetermined condition. For example, it is used as the above-mentioned predetermined condition that the number of throughput reduction executions for which the printing speed reduction switching has been performed reaches a predetermined value. Alternatively, whether or not the small-size passing paper ratio is greater than a predetermined value is used as the above-mentioned predetermined condition. This prevents the lubricant from overflowing, prevents the sliding properties of the fixing film and the heating body from deteriorating, prevents the paper from being unable to be conveyed, generates sliding noise, and causes poor fixing, thereby improving the durability of the fixing device.

The invention discloses an Ad hoc network cooperative relay method based on distributed space-time coding, which mainly solves the problems that in the prior art, when the network is relatively sparse or has larger loads, the delay is increased and the throughput is lowered. The method comprises the following steps of: (1) for an physical layer of an Ad hoc network, restraining the length of a control packet to acquire a communication range specially used for sending the control packet; (2) in the communication range of the control packet, computing the even-hop shortest path and the odd-hop shortest path between every two nodes by a routing layer according to adjacent nodes searched by each node; and (3) according to the even-hop shortest path and the odd-hop shortest path, selecting the next hop to a destination node as a relay node by an MAC layer, sending the control packet to invite the relay node to participate in three-point cooperation, selecting the next hop to the destination node as a receiving node by the relay node, and finishing the data transmission in a distributed space-time coding manner. The invention can improve the network throughput and reduce the delay, and can be applied to the field of cooperative communication.

There is provided a radio interrogator system which reduces the interference with a radio transponder and avoids the decrease in throughput of the entire system in a case in which a plurality of radio interrogators are disposed at positions brought relatively close to each other and are simultaneously placed into operation. The plurality of radio interrogators are classified into two groups and each of the radio interrogators has an operation mode setting unit capable of exclusively setting, for each of the classified groups, a transmission mode for transmitting a radio transmission signal to a radio transponder or a reception mode for receiving a radio response signal transmitted from the radio transponder as a response to a radio transmission signal from the radio interrogator.