Texas Instruments Corporation

Amimon Ltd.

Lior Ophir

Naftali Sommer

Itay Lusky

Meir Feder

Liran Brecher

Ofir Shalvi

Matthew Brendan Shoemake

Artur Zaks

Jie Liang

Itay Sherman

Eitan Solomon

Amir Ingber

Eli Shusterman

Igor Royzis

Fredy Rabih

Some demonstrative embodiments include devices, systems and/or methods of dual-mode wireless communication. Some embodiments include a wireless dual-mode transceiver capable of operating at first and second wireless communication modes during first and second time periods, respectively, wherein at the first communication mode the transceiver is capable of performing wireless-local-area-network communications over a wireless-local-area-network link, and wherein at the second communication mode the transceiver is capable of performing wireless video communications over a wireless video communication link. Other embodiments are described and claimed.

Device, method and system of dual-mode wireless communication

Some demonstrative embodiments include devices, systems and/or methods of wireless video communication. Some embodiments include an apparatus including a downlink receiver to receive a wireless downlink video transmission from a video source module, and an uplink transmitter to transmit to the wireless video source module a wireless uplink transmission. Other embodiments are described and claimed.

Device, method and system of uplink communication between wireless video modules

A system and method for wireless local area network throughput enhancement includes an access point and an endpoint station in a wireless computer network transmitting data packets over radio frequency signals, and reordering the data packets into a megapacket in the access point using concatenation of the data packets. The method provides a significant throughput enhancement on wireless networks including IEEE 802.11 networks.

4X design for wireless local area network throughput enhancement

A method provides forward compatibility hooks for DFS and TPC for WLAN, so that the same mechanisms can be employed (with only minor changes/additions) for other regulatory domains, other bands, and/or other purposes. The current IEEE 802.11 h standard defines mechanisms for dynamic frequency selection (DFS) and transmit power control (TPC) that may be used to satisfy regulatory requirements for operation in the 5 GHz band in Europe. The present method provides a format to allow other bands, and relates to the supported channels element, channel switch announcement element, and the Basic/CCA/RPI histogram request/report. The method optionally reserves more than 3-bits in the Basic report (Map subfield).

Forward compatibility hooks for DFS and TPC for WLAN

A system, apparatus and method are disclosed for implementing a managed network in a hybrid network environment to support nodes having managed network capability together with nodes that do not support managed network capabilities. In one form of the invention, a method for managing data communication on a network coupled to first nodes and second nodes is provided comprising: controlling a first time period for one or more first data transmissions on the network wherein the first nodes are permitted to transmit data during the first time periods and the second nodes are not permitted to transmit data during the first time period by causing the second nodes to treat the first time period as a single transmission period. Other methods, apparatus and systems are provided.

Network manager for a hybrid network environment

In digital communications that utilize a data packet format wherein each data packet includes a physical layer (PHY) component and a media access control layer (MAC) component, the media access control layer component can be selectively protected by forward error correction (FEC). The receiving end receives an indication as to whether FEC has been applied, and makes an FEC decision based (12-15) on this indication. The accuracy of the received-side FEC decision and the robustness of the FEC indication can be improved by: making the FEC decision based on the results of FEC decoding applied to a media access control layer header within the media access control layer component; providing an FEC indication bit in the physical layer component; and using a plurality of bits to encode the FEC indication in either the physical layer component or the media access control layer component.

Robust indication of MAC level error correction

A method provides frequency and phase offset estimation in a SCDMA burst receiver (such as a DOCSIS 2.0 SCDMA burst receiver) by application of the known Least Square (LS) parameter estimation algorithm to a pre-known transmitted sequence, called preamble, in order to optimally characterize the phase and frequency offsets affecting the transmitted data. The LS parameter estimation algorithm is adapted to SCDMA burst receiver specifications by changing index calculations to fit according to SCDMA preamble locations. Improved estimation accuracy can be achieved by using weighted least squares that disregard symbols affected by impulse and burst noise. Weighted least squares can further impart more weight to last symbols to more accurately estimate contemporary impairments. The method is particularly useful for communication systems having large frequency and phase offsets as in the DOCSIS 2.0 SCDMA burst receiver.

Method of frequency and phase offset estimation using least square method in a burst receiver

The present invention provides a system, method, and apparatus for providing improved quality of service in a wireless local area network transmission system, the network comprising at least two devices, the quality of services defined at least in part by data communicated by a first of the devices to other devices in the network through one or more quality of service parameters. In accordance with the present invention, a change indicator is initialized at the start of a monitoring period. Then, during the monitoring period, the stored parameters are monitored for changes in those of thee stored parameters that define the quality of service. When a change is detected, the change indicator is updated in response and other devices in the network are periodically notified of the current value of the change indicator. The other devices are operable to update locally stored quality of service parameters in response to detecting a change in the change indicator.

Dynamic update of quality of service (Qos) parameter set

The present application describes a method of implementing a Viterbi algorithm (VA) for trellis coded modulation (TCM) decoding in communication equipment. According to an embodiment, a branch metric is calculated by adding the absolute value of the real and imaginary parts of a complex vector resulting from the subtraction of a received symbol and a constellation point that is the closest to the symbol in each subset.

Reduced complexity decoding for trellis coded modulation

In frequency channel communications, constraints on transmit power characteristics can be complied with by implementing constellation shaping () in the transmitter. In transmitters which use transmit filtering () to comply with constraints on transmit power characteristics, the transmitter can also implement, upstream of the transmit filter, precoding () designed for a desired cooperation with the transmit filter.

Spectral power management for constrained transmissions using constellation shaping

A technique that combines a turbo trellis coded modulation (TTCM) coding scheme with constellation shaping and precoding schemes to implement a binary coded communication system and method that can achieve high performance (high coding gains achieved in combination with shaping gain, and when necessary, also with high performance in ISI-channels via preceding).

System and method of data communication using turbo trellis coded modulation combined with constellation shaping with or without precoding

A technique that combines either a trellis coded modulation (TCM) coding scheme or a turbo trellis coded modulation (TTCM) coding scheme with constellation shaping and precoding schemes, and further in combination with concatenated coding schemes or when working in a non-error free operation point, to implement a binary coded communication system and method that can achieve high performance (high coding gains achieved in combination with shaping gain, and when necessary, also with high performance in ISI-channels via precoding).

SYSTEM AND METHOD OF DATA COMMUNICATION USING TRELLIS CODED MODULATION OR TURBO TRELLIS CODED MODULATION IN COMBINATION WITH CONSTELLATION SHAPING WITH OR WITHOUT PRECODING WHEN USING CONCATENATED CODING SCHEMES OR WHEN WORKING IN A NON-ERROR FREE OPERATION POINT

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Herzlia, Israel

Lior Ophir