摘要:
The invention relates to a method for transmitting data between a transmitter and a receiver via a wireless data channel of a communication network (CN). The transmitter transmits data to the receiver, where the transmission includes at least one transmission parameter which is selected based on a first channel quality that is known to the transmitter. The receiver receives the data, and the receiver determines the first channel quality known to the transmitter from said data via the at least one used transmission parameter as well as a second, current channel quality via the quality of the received data; and the receiver compares the first channel quality with the second channel quality.
摘要:
A transmission method is provided whereby data of different classes are transmitted and different reliability positions exist, with the bits of the different classes being mapped to respective reliability positions.
摘要:
A device includes a substrate, a pedestal extending from the substrate, and a ring resonator disposed on the pedestal above the substrate. The ring resonator has a resonance wavelength greater than 1.5 μm and includes at least one of silicon and chalcogenide glass. The device can be used as a ring resonator sensor or a light source. The ring resonator is substantially transparent to mid-infrared radiation to reduce optical losses. The pedestal has a narrower width compared to the ring resonator to generate improved interaction between evanescent fields of light in the ring resonator and analytes nearby the ring resonator, thereby increasing sensing sensitivity. In addition, fabrication of the device is compatible with complementary metal-oxide-semiconductor (CMOS) processes and hence is amenable to large scale manufacturing.
摘要:
A method of fabricating a large area photodiode is provided. The method includes providing a substrate having a first contact layer formed thereon. Also, the method includes forming a dielectric layer on the first contact layer and patterning selective areas of the dielectric layer to form a plurality of dielectric windows. Each of the dielectric windows has an open region exposing the first contact layer. Furthermore, the method includes epitaxially growing photodiode material(s) in the dielectric windows, wherein each of the dielectric windows are individualized photodiode structures.
摘要:
In a method of forming a photonic device, a first silicon electrode is formed, and then a germanium active layer is formed on the first silicon electrode while including n-type dopant atoms in the germanium layer, during formation of the layer, to produce a background electrical dopant concentration that is greater than an intrinsic dopant concentration of germanium. A second silicon electrode is then formed on a surface of the germanium active layer. The formed germanium active layer is doped with additional dopant for supporting an electrically-pumped guided mode as a laser gain medium with an electrically-activated n-type electrical dopant concentration that is greater than the background dopant concentration to overcome electrical losses of the photonic device.
摘要:
The present invention relates to a method for transmitting data via a physical channel in a communication system, the channel being used by at least one first communication device and one second communication device and transmitting data with a defined bit rate. According to the present invention, the data to be transmitted (TD) is composed of load data (LD) and identification data (ID) for identifying the second communication device, the load data (LD) and identification data (ID) are coded separately from one another, the respective coding (C_LD, C_ID) takes place in such a way that an identical bit rate is achieved after the coding operation for the load data (LD) and the identification data (ID) and the rate is matched to the bit rate that has been defined for the physical channel by a rate matching mode, which defines which bits are punctured or repeated in a data stream. The rate matching model for load data (LD) and identification data (ID) is identical.
摘要:
A method transmits data packets in a radio system between an emitter and a receiver. A nominal energy is defined for each data packet and each transmission according to a quality requirement for the reception by the receiver. An emission power required for each data packet is determined according to the quality requirement for the reception of the data packet. The transmission data packet is formed from a plurality of data packets. A first transmission emission power is defined for a first transmission of the transmission data packet according to the determined emission powers for the individual data packet. The first transmission of the transmission data packet is carried out with the first transmission emission power. A retransmission emission power is calculated according to a nominal transmission power derived from the nominal energy, for the transmission data packet and the emission power for at least one previous transmission of the transmission data packet.
摘要:
Methods for receiving data sent by a first emitter of a mobile telephony system to a first resource element of a resource, via a receiver, radiopockets being created during the reception, and data which is not received during the creation of the radiopockets being reconstructed by the receiver are provided. The data which is not received by the first emitter is received by a second emitter, in a temporarally offset manner, on the same resource element of the resource, between the radiopockets, and is used to reconstruct the sequence of data. A conversion is especially advantageous for carrying out a receiving method in UMTS compression mode during the reception of data which is sent continuously independently of the compression mode.
摘要:
A laser structure includes at least one active layer having doped Ge so as to produce light emissions at approximately 1550 nm from the direct band gap of Ge. A first confinement structure is positioned on a top region of the at least one active layer. A second confinement structure is positioned on a bottom region the at least one active layer.
摘要:
A fabrication method and materials produce high quality aperiodic photonic structures. Light emission can be activated by thermal annealing post growth treatments when thin film layers of SiO2 and SiNx or Si-rich oxide are used. From these aperiodic structures, that can be obtained in different vertical and planar device geometries, the presence of aperiodic order in a photonic device provides strong group velocity reduction (slow photons), enhanced light-matter interaction, light emission enhancement, gain enhancement, and/or nonlinear optical properties enhancement.
摘要翻译:制造方法和材料产生高质量的非周期光子结构。 当使用SiO 2和SiN x 3或富Si氧化物的薄膜层时,可以通过生长后处理进行热退火来激发发光。 从这些非周期结构可以在不同的垂直和平面器件几何形状中获得,光子器件中非周期性顺序的存在提供了强的组速度降低(慢光子),增强的光物质相互作用,光发射增强,增益增强和 /或非线性光学性能增强。