Broadcom Corporation

Avago Technologies General IP (singapore) Pte. Ltd.

Avago Technologies International Sales Pte. Limited

Beceem Communications Inc.

Sindhu Verma

Soumen Chakraborty

Shubhodeep Adhikari

Sharon Levy

Manish Airy

Anuj Puri

Matthew James Fischer

Yong Li

Baoguo Yang

Shao-Cheng Wang

Kamlesh Rath

Guy Drory

Pavan Nuggehalli

Yonatan Cohen

Wael William Diab

John S Walley

Erik Richard Stauffer

Louay A Jalloul

Leena Zacharias

Nicholas Ilyadis

Sriram K Rajagopal

Murat Mese

Gowrisankar Somichetty

Shashidhar Vummintala

Raymond Hayes

Rafael Carmon

Sam P Alex

Stephanie Felicia Pereira

Rishi Ranjan

Hariprasad Gangadharan

Ramasamy Palanisamy Pugazhanthi

Felix Varghese

A method includes transmitting, at an access point configured to transmit data over an unlicensed band, a single message prior to transmitting data over a channel of the unlicensed band. The method further includes receiving, at the access point, a plurality of responses from a plurality of user equipment acknowledging the single message in response to the single message.

LAA-LTE communication in an unlicensed spectrum

The present disclosure provides systems and methods for decoupling downlinks and uplinks between user equipment (UE) and base stations. Briefly described, in architecture, one embodiment of the system comprises UE (e.g., cellular telephones, mobile devices, etc.) for independently establishing an uplink (UL) and a downlink (DL). One embodiment of the method comprises the steps of establishing a DL to an optimal DL base station (BS), and establishing an UL to an optimal UL BS.

Decoupled downlink and uplink

A method includes detecting, using a WiFi access point, channel use data indicating traffic on a plurality of channels of an unlicensed LTE band in a wireless network. The method further includes providing the channel use data to a Long Term Evolution (LTE) access point. The method further includes selecting, using the LTE access point, a channel for use in transmitting data by the LTE access point from among the plurality of channels based on the channel use data from the WiFi access point. The method further includes providing, from the LTE access point, an indication of an upcoming transmission configured to transmit data on the channel to the WiFi access point. The method further includes broadcasting one or more messages from the WiFi access point to one or more WiFi nodes, the one or more messages configured to prevent the WiFi nodes from transmitting on the channel.

WiFi-coordinated LAA-LTE

Devices and methods for determining timing offsets between wireless devices are provided. One method includes transmitting, from a first device, a request for timing data to first user equipment and receiving a response. The timing data is indicative of a frame timing associated with a reference time for both the first device and a second device. The method further includes determining a timing offset between the frame timing for the first device and a frame timing for the second device based on the timing data. Another method includes receiving a reference time from a timing reference device, applying a timestamp to frame timing data for the first device, receiving frame timing data from the second device time-stamped based on the reference time, and comparing the timing data to determine a time offset between the devices.

Time offset acquisition for dual connectivity

Systems and methods for adaptive access and handover configuration based on historical data are provided. Access and handover decisions are optimized in a multiple radio access technology environment using historical data associated with network performance. Future needs for access and handovers are predicted using historical data associated with the user and historical data associated with network performance. Performance metrics are received periodically or continuously from nodes in one or more networks at a centralized controller. The centralized multi RAT controller correlates these performance metrics and determines predicted handovers for a user device. Preparations for the predicted handovers can then be made prior to the handover event.

Cross radio access technology access with handoff and interference management using communication performance data

WIFI-coordinated LAA-LTE

A method includes transmitting, at an LTE device configured to transmit data over an unlicensed band, first synchronization data over a first frequency channel of the unlicensed band during a timeframe. The method further includes transmitting, at one of the first LTE device or a second LTE device, second synchronization data over a second frequency channel of the unlicensed band during the same timeframe. The data transmissions of at least one of the first LTE device or the second LTE device are coordinated based on the synchronization data.

Synchronization channel structure for a shared channel

Carrier aggregation and dual connectivity allow a user device to communicate with one or more base stations on multiple component carrier frequencies. When it is determined that the user device should handover to a new base station, the user device performs a substantial portion of the needed handover operations with the new base station using only one of the component carrier frequencies. Meanwhile, the user device maintains data communications with the original base station on the remaining component carrier frequencies.

Wireless communication system utilizing staggered device handovers

TTI bundling is included for Msgtransmissions in LTE communications. A reserved group of preambles or reserved set of random access preamble transmission opportunities are used to indicate user equipment (UE) need of uplink (UL) transmission of a TTI-bundled Msg. The UE transmits the same redundancy version for transmissions within a TTI bundle as the eNB expects even if any of the transmissions are dropped due to collisions with an Msgtransmission. In addition, co-existence of TTI bundling and UL semi-persistent scheduling (SPS) for TDD DL/UL configurations is provided using SPS intervals which are multiples of various fixed time periods.

Transmission time interval (TTI) bundling operation within communication systems

A wireless communication device is disclosed that is capable of reduced power consumption. Uplink and downlink sub-frames in a WiMAX, 802.16m or LTE environment often include several vacant symbols during which power-hungry hardware and software components need not operate at full power. By analyzing a physical layer beacon and control information of a received signal, the specific locations of data bursts can be determined, as well as periods of needed operation of a receiver module to effectively decode those data bursts. The receiver module can otherwise be controlled to operate in a LOW power state during remaining periods of vacant time, thereby conserving power consumption and extending battery life.

Wireless communication device having reduced power consumption

Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.

Allocation of periodically distributed frames of wireless communication

Methods and systems of a mobile station transmitting information to a base station are disclosed. The mobile station may transmit information with improved uplink coverage, and bandwidth requests may be more efficient. Additionally, the mobile station may transmit information over multiple uplink frames using hybrid ARQ.

Methods and systems for uplink network entry and bandwidth requests

Growing community of inventors

Bengaluru, India

Sindhu Verma