Broadcom Corporation

Avago Technologies General IP (singapore) Pte. Ltd.

Avago Technologies International Sales Pte. Limited

Peyush Agarwal

Yasantha N Rajakarunanayake

James F Dougherty

Vinko Erceg

Alexander Garland MacInnis

Amir Dov Eliaz

Joachim S Hammerschmidt

Rohit Gaikwad

George Dionyssios Kondylis

Daniel Stopler

Praveen Kumar Gopala

Hyoung Keun Ryu

Rana A Abdelaal

Nir Stahl Diskin

A transmit power optimization and rate-control system includes a transmitter circuit having one or more power amplifiers transmit radio-frequency (RF) signals at a transmission (Tx) rate and a Tx power level. A receiver circuit receives RF signals, decodes the received RF signals and provides one or more Tx status feedbacks. A rate-control module adjusts the Tx rate based at least on a channel condition. A probing engine generates at least two consecutive frames at a first Tx power level, and a second Tx power level in response to a trigger causes the transmitter to transmit the at least two consecutive frames, and processes respective Tx status feedbacks received in response to transmission of the two consecutive frames in order to optimize the Tx power of the transmitter.

Rate control with transmitter power optimization

Video sub-reservation protocol in a wireless ecosystem. Appropriate access is provided to a number of wireless communication devices to ensure very high performance and a high perceptual user experience with respect to media related content communications. Access to the communication medium (e.g., air within a wireless location system) is provided to various wireless communication devices in a manner as to minimize collisions and contention. In one instance, different respective access assignment periods are sub-divided to give respective communication medium access to various devices within the system. Such sub-reservation may be adaptive in response to any of a number of considerations (e.g., traffic, device processing history, etc.). Also, such sub-reservation may provide respective time specificity at or during which certain devices may conduct communications, but may also specify any other operational parameters (e.g., which frequency spectra to use, duration of such communications, modulation coding set (MCS) to use, etc.).

Video sub-reservation protocol in a wireless ecosystem

Adaptive wireless channel allocation in a multi-user environment based on quality of received video streams. During the transmission of encoded media streams from a wireless access device to at least first and second video devices over a wireless channel, transmission windows are allocated in shared transmission frame intervals for transmission of media packets to the first and second video devices, respectively. Relative priorities are set/adjusted for the video devices based, at least in part, on one or more of the following: channel estimation information, reception characteristics, transmission acknowledgment information, video device characteristics and/or user feedback. The relative priorities are utilized to adaptively (re)allocate at least one portion of the transmission frame intervals. In addition to channel reallocation, the prioritization of devices may be utilized to adaptively alter the encoding bit rate of one or more media streams.

Adaptive wireless channel allocation for media distribution in a multi-user environment

Polling using B-ACK for occasional back-channel traffic in VoWIFI applications. Within wireless communication systems having a relatively asymmetric channel (e.g., relative more downstream traffic than upstream), certain upstream communications (e.g., acknowledgments (ACKs) and/or block acknowledgments (B-ACKs)) include indication therein (e.g., piggybacked therein) that a given downstream located communication device desires/needs to make upstream communication. In some instances, specificity is also provided therein to indicate the type of information to be transmitted upstream. Such a communication protocol mitigates (or eliminates) contention between upstream and downstream traffic in an environment with significantly more downstream traffic (e.g., such as ongoing downstream traffic that may include streaming video). A coordinating device (e.g., access point (AP)) may employ such upstream provided indicia to coordinate upstream and downstream communications within the wireless communication system in a non-contentious manner that does not deleteriously affect ongoing downstream traffic.

Polling using B-ACK for occasional back-channel traffic in VoWIFI applications

Growing community of inventors

Milpitas, CA, United States of America

Peyush Agarwal