Abstract:
A method and a base station for determining a size of transmission blocks in a sub-frame. The method comprises: acquiring a physical resource block allocation number N′PRB and a transmission block size index I′TBS; determining a conversion relationship, and converting N′PRB and I′TBS, according to a conversion relationship, respectively into NPRB and ITBS used in existing calculation for the size of a transmission blocks; and according to NPRB and ITBS, calculating the size of the transmission blocks.
Abstract:
A multipurpose sensor fixing device includes a radial positioning mechanism, a supporting mechanism, a base, a mounting mechanism, and a parallelism adjusting member. The supporting mechanism comprises a main supporting arm and an auxiliary supporting arm, with one end of the auxiliary supporting arm connected to the main supporting arm and the other end comprising kink shaft members. The main supporting arm is connected to an end of the radial positioning mechanism to locate the auxiliary supporting arm at the inner side of the main supporting arm. The kink shaft member of the auxiliary supporting arm is inserted into a plughole of the base to form a revolute pair with the auxiliary supporting arm. The mounting mechanism is mounted at the base. The parallelism adjusting member is mounted on the main supporting arm.
Abstract:
An encoding method, encoding device, decoding method and decoding device for low density generator matrix codes (LDGC) are disclosed. Wherein, the encoding method comprises: construct an LDGC mother code set using P LDGC with code rate R0 and different code lengths, wherein the LDGC mother code set has a uniform basic matrix Gbuniform wherein, R 0 = k b n b , kb denotes the number of rows and nb denotes the number of columns in the basic matrix; obtain length L of an intermediate variant according to length K of an information bit sequence to be encoded in the LDGC mother code set; modify and expand the basic matrix to obtain a generator matrix Gldgc using the length L of the intermediate variant and the number kb of rows in the basic matrix; and encode the information bit sequence to be encoded using a matrix Gldgc (1:L,1:N+L−K) composed of L rows and the front N+L−K columns of the generator matrix, wherein N denotes the length of the encoded information.
Abstract:
A method for processing Forward Error Correction, FEC, data, which includes: a sender encapsulates the FEC data to be a Transport Stream, TS, message, sets FEC identification information in the TS message, and encapsulates the TS message to be a Real-time Transport Protocol, RTP, message; then sends the RTP message to a terminal side. The reception end receives the RTP message; if the reception end has a function for FEC decoding, the reception end identifies the FEC data according to the FEC identification information in the TS message of the received RTP message, and recovers the missed media message according to the FEC data; if the reception end does not have the function for FEC decoding, the reception end processes the RTP message after removing the message header. The embodiments of the present invention also provide a transmission and processing device.
Abstract:
An acoustic emission test sensor fixing device, comprising a radial positioning mechanism, supporting mechanisms, bases, acoustic emission test sensor mounting mechanisms, and parallelism adjusting members, wherein the supporting mechanism comprises a main supporting arm and an auxiliary supporting arm, with one end of the auxiliary supporting arm is fixedly connected to or hinged with the main supporting arm and the other end is provided with kink shaft members which are symmetrical about the auxiliary supporting arm; and the bases are provided with plugholes which form revolute pairs with the auxiliary supporting arm. The above components are assembled as follows: the main supporting arms of the two sets of supporting mechanisms are connected to the two free ends of the radial positioning mechanism respectively in the way that the auxiliary supporting arms of the two sets of supporting mechanisms are located at the inner sides of the main supporting arms respectively and are arranged axis symmetrically with respect to the central line of the radial positioning mechanism, and the kink shaft members of the two auxiliary supporting arms are respectively inserted into the plugholes of the two bases to form revolute pairs, the two sets of acoustic emission test sensor mounting mechanisms are respectively mounted at the two bases, and the two sets of parallelism adjusting members are respectively mounted on the two main supporting arms and correspond to the positions of the bases.
Abstract:
A method and system for encoding the low density generator matrix code are disclosed. The encoding method includes the following steps: S102, constructing a generator matrix Gldgc with L rows and N+L−K columns, wherein a phalanx Gldgc(1:L, 1:L) which consists of L rows and the first L columns of the generator matrix Gldgc is an upper triangular matrix or a lower triangular matrix, the K, L and N being positive integers, and K
Abstract:
A method of measuring distance between a target and a receiver in a ranging system may comprise transmitting a first pulse at a first time determined by a sampling clock in a receiver, receiving the first pulse, sampling the first pulse at a predetermined amplitude threshold using the sampling clock and determining the time of arrival of the first pulse in terms of a number of periods of the sampling clock after the first pulse was transmitted. This may be repeated for a second pulse and the average times of arrival of the first and second pulses are determined to obtain an averaged estimated time of arrival. The distance between the target and the receiver may be determined by multiplying the averaged estimated time of arrival by the speed of propagation of the transmitted pulses. There is also disclosed an apparatus for measuring distance.
Abstract:
The present invention generally provides compositions and methods that can be used to detect compounds that modulate the activity of at least one of the DJ-1, Parkin and Pink-1 genes.
Abstract:
A system and method for determining position of, for example, a robot based on reflected signals comprises a transmitter for transmitting signals in a number of directions within a range of directions and a receiver for receiving echoes of the signals from any direction in the range. The transmitter has a first rotatable antenna and the receiver has a second rotatable antenna which is mechanically couplable to the second antenna. The received echoes are processed by a processor to derive echo data signals indicative of the distance of the system to one or more reflective surfaces and the direction of the reflective surface(s) relative to the system. The processor is arranged to determine the position of the system relative to a starting position from the derived echo data signals indicative of the distance of the system to the reflective surface(s) and the direction of the reflective surface(s) relative to the system.