Applied Transform, LLC

Lantiq Deutschland Gmbh

Ax Wireless, LLC

Aware, Inc.

Lantiq Beteiligungs Gmbh & Co. Kg

Intel Germany Gmbh & Co. Kg

Applied Trensform, LLC

Joon Bae Kim

Marcos Tzannes

Vladimir Oksman

Stuart D Sandberg

Feliciano Gomez Martinez

Patrick Kelliher

Khashayar Mirfakhraei

Richard W Gross

Peter N Heller

Imran A Hajimusa

Joshua Grossman

Maulik R Bhatt

Esosa Amayo

Pramod Pandey

Stuart Sandberg

Techniques for header encoding include encoding a plurality of bits using a forward error correction code, generating an FEC codeword comprising a plurality of encoded bits, and concatenating a first copy of the FEC codeword with a second copy of the FEC codeword, wherein the concatenating comprises cyclically shifting by two bits the second concatenated copy of the FEC codeword relative to the first concatenated copy of the FEC codeword, wherein the encoded bits of the first and second copies of the FEC codewords are modulated on at least one OFDM symbol. techniques for header decoding include receiving a plurality of encoded bits comprising at least two concatenated copies of an FEC codeword, decoding a first copy of the FEC codeword to generate a first plurality of decoded bits, and decoding a second copy of the FEC codeword to generate a second plurality of decoded bits.

Identification of packet traffic transmitted by various devices operated in multiple overlapped frequency bands in packet-based OFDM systems

A wireless communication device and a communication method for header repetition are described. The device and method receive and decode a wireless packet through a communication channel. Formats of the wireless packet includes a first packet format and a second packet format. In this regard, the first packet format comprises a first header field carried by a first orthogonal frequency division multiplexing (OFDM) symbol while the second packet format comprises both the first header field carried by the first OFDM symbol and a second header field carried by a second OFDM symbol which follows the first OFDM symbol. The second header field is a repetition of the first header field. According to an exemplary embodiment, the second packet format is distinguished from the first packet format by detecting, from the received wireless packet, the second header field which repeats the first header field.

Header repetition in packet-based OFDM systems

Representative implementations of devices and techniques provide communication between networked nodes operating on a communication network medium. In an implementation, a node generates a broadcast frame that includes at least a preamble and a payload. The preamble of the broadcast frame may include auxiliary information. The auxiliary information may be associated with one or more symbols of the preamble. The auxiliary information may contain power boost information.

Power boost in communication system

An OFDM communication system is described that allows different values of D in a single domain where nodes are operating in different portions of frequency bands. For the power-line medium, G.9960 has defined two overlapped baseband bandplans, 50 MHz-PB and 100 MHz-PB. In this exemplary scenario, the level of frequency diversity is different depending on the bandplan, hence providing different header decodibility if D is fixed to 1. If D is fixed to 2, then it increases reliability for the narrowband devices, but may also unnecessarily increase overhead for the wide-band devices. An exemplary aspect is therefore directed to techniques to accommodate different repetitions schemes (D=1, . . . , Dand H=1, . . . , H) in a single domain, and still allow devices to communicate with one another where Dand Hcan be larger than 2.

An OFDM communication system is described that allows different values of D in a single domain where nodes are operating in different portions of frequency bands. For the power-line medium, G.9960 has defined two overlapped baseband bandplans, 50 MHz-PB and 100 MHz-PB. In this exemplary scenario, the level of frequency diversity is different depending on the bandplan, hence providing different header decodability if D is fixed to 1. If D is fixed to 2, then it increases reliability for the narrowband devices, but may also unnecessarily increase overhead for the wide-band devices. An exemplary aspect is therefore directed to techniques to accommodate different repetitions schemes (D=1, . . . , Dand H=1, . . . , H) in a single domain, and still allow devices to communicate with one another where Dand Hcan be larger than 2.

A non-transitory computer-readable information storage media for use within a wireless OFDM network that causes to be transmitted or received a first packet type and a second packet type. The first packet type has a header field with two parts with each part comprising a different set of header bits. The two parts of the header field are transmitted or received using two OFDM symbols. The second packet type has a header field with four parts with the first and second parts comprising the same first set of header bits and the third and the fourth part comprising the same second set of header bits. The four parts of the header field are transmitted or received using four OFDM symbols. The second packet type provides more reliable transmission or reception than the first packet type.

Non-transitory computer-readable information storage media for variable header repetition in a wireless OFDM network

Representative implementations of devices and techniques provide noise reduction between proximate networks by minimizing interference from nearby network communication. A processing module determines a performance condition of a network and communicates with one or more nodes at a nearby network based on the performance condition of the network.

Noise reduction between proximate networks

A modem includes a controller configured to generate at least one communication for a communication medium. The at least one communication includes first portion comprising auxiliary information, the auxiliary information comprising at least power boost information and at least one parameter defining use of the power boost information and a second portion comprising payload data.

Method and apparatus for use within a wireless OFDM network that receives a first packet type in a first channel bandwidth and a second packet type in a second channel bandwidth, the first channel bandwidth being at least two times wider than the second channel bandwidth. The first packet type has a header field with two parts with each part comprising a different set of header bits. The two parts of the header field are received using two OFDM symbols. The second packet type has a header field with four parts with the first and second parts comprising the same first set of header bits and the third and the fourth part comprising the same second set of header bits. The four parts of the header field are received using four OFDM symbols. The second packet type provides more reliable reception than the first packet type.

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Lexington, MA, United States of America

Joon Bae Kim