A system and method for wirelessly transmitting audiovisual information. A first plurality of packets including audiovisual information may be generated. A second plurality of packets including error correction coding information for the audiovisual information may be generated. Control information for associating the error correction coding information with the audiovisual information may be generated, and a third plurality of packets including the control information may also be generated. The plurality of packets, including the first, second, and third pluralities of packets, may be transmitted to a mobile device in a wireless manner. The control information may inform the mobile device of the association of the first error correction coding information with the audiovisual information.

Control information for configuring an audiovisual device to present multimedia content according to a first service type may be generated. A first data structure specifying that the first control information is associated with the first service type may be generated. A plurality of packets, including a multimedia stream according to the first service type, the first control information, and the first data structure, may be generated and transmitted. Second control information for configuring the audiovisual device to present a multimedia stream according to a second service type may be generated. The first data structure may be modified to include information about the second control information. A second plurality of packets, including the modified first data structure, the first control information, a multimedia stream according to the first service type, the second control information, and a multimedia stream according to the second service type, may be generated and transmitted.

Control information for configuring an audiovisual device to present multimedia content according to a first service type may be generated. A method may include generating first control information for configuring an audiovisual device to decode a multimedia stream, generating first data that indicates a structure of the first control information, and transmitting the first data and the first control information. The first control information may be generated according to a first protocol version. Second data and second control information may be similarly generated and transmitted according to a second protocol version. Disclosed techniques may facilitate receiving devices to determine whether they support received wireless transmissions and decode the transmissions based on the control information.

Wireless transport of multiple service versions of a transport framework. First and second information may be processed for transmission, respectively, according to first and second service versions of a transport framework. The first and second information may be encoded using a first type of error correction coding; after processing, the processed first information may include error correction coding according to the first type of error correction coding, while the processed second information may remain uncoded according to the first type of error correction coding. Control information may be generated indicating that the second information remains uncoded according to the first type of error correction coding, which may signal to receivers that the second information is processed according to the second service version of the transport framework. Packets including the processed first information, the processed second information, and the control information may be generated and transmitted in a wireless manner.

Disclosed are a controller, a system and a method for decoding LDPC codewords based on historical decoding information. In a decoding iteration, the value of flipping energy of a variable node in a codeword is computed based on information representing decoding of the codeword before the decoding iteration. A comparison result is obtained by comparing the value of flipping energy to a flipping energy threshold. And the variable node is flipped in response to the comparison result satisfying a criterion. A controller with a process configured to implement the BF decoding process, as well as a system with the controller.

An error correction apparatus that performs two-bit error correction decoding using a block error correcting code includes: a syndrome generation unit that generates a syndrome pattern from a reception sequence; a number-of-errors determination unit that determines a number of bit errors in the reception sequence based on the syndrome pattern; and a two-bit error candidate error correction unit that calculates a first parameter based on the syndrome pattern when the number-of-errors determination unit determines that there is a two-bit error with a possibility of correction thereof, excepts the first parameter when the two-bit error is uncorrectable, and obtains a normalized root for the two-bit error by using a second parameter obtained by degeneracy of the first parameter by one bit, the first parameter being a constant term of a normalized polynomial, the normalized polynomial being obtained by normalization of a quadratic error locator polynomial.