Qualcomm

About: Qualcomm is a company organization based out in Farnborough, United Kingdom. It is known for research contribution in the topics: Wireless & Signal. The organization has 19408 authors who have published 38405 publications receiving 804693 citations. The organization is also known as: Qualcomm Incorporated & Qualcomm, Inc..

Establishing groups of internet of things (iot) devices and enabling communication among the groups of iot devices

Abstract: The disclosure generally relates to enabling communication among one or more Internet of Things (IoT) device groups. In particular, various heterogeneous IoT devices that may need to interact with one another in different ways may be organized into IoT device groups to support efficient interaction among the IoT devices. For example, pre-defined IoT device groups may be formed organize certain IoT devices that perform similar activities and certain IoT devices may be dynamically allocated to ad-hoc IoT device groups for certain contexts (e.g., the ad-hoc IoT device groups may include IoT devices that can implement a desired function and therefore be dynamically formed to implement the desired function). Furthermore, the IoT groups may communicate hierarchically, wherein messages may be exchanged among IoT group owners or ranking members to support efficient communication between different IoT groups.

Lte-u uplink waveform and variable multi-subframe scheduling

Abstract: Uplink waveforms for operating long term evolution (LTE) in an unlicensed band (i.e., long term evolution-unlicensed (LTE-U) communication) are disclosed. Carrier aggregation (CA) and standalone (SA) are disclosed. LTE on the licensed channel may provide both control and data, LTE on the unlicensed channel may provide data. Managing variable transmission time interval (TTI) continuous transmission is disclosed for transmission over multiple subframes of an unlicensed carrier in LTE-U. Listen-before-talk (LBT) requirements of unlicensed carriers provide for additional channel occupancy constraints when scheduling resources for multiple UEs for variable TTI continuous uplink transmissions over multiple subframes. A joint control channel is disclosed that provides control information for all of the potentially available subframes to be scheduled for the uplink transmissions. In addition to management of the variable TTI continuous transmissions, adjustments to uplink signal parameters are also disclosed that address the constraints due to the LBT requirements of unlicensed carriers.

Inter-cell power control in the presence of fractional frequency reuse

Abstract: System (s) and method (s) are provided for inter-cell power control in the presence of fractional frequency reuse in a wireless communication system. Transmission power control of a terminal (210); and ensuing inter-cell interference mitigation, is accomplished by receiving load indicators (23Oi) from non-serving sectors (246i), decoding those load indicators corresponding to the non-serving sectors that operate in the same frequency bands as the terminal, and adjusting the transmission power according to the states of the decoded load indicators in conjunction with the associated non-serving sector forward link signal-to-interference and-noise ratio at the terminal. The states of the load indicators reflect magnitudes of interference metrics with respect to threshold values. Load indicators can also be conveyed by the non-serving sector to4 a base station (260) serving the terminal through a backhaul (250) communication, and said base station can schedule an adjusted transmission power for the terminal.

Fast calibration of displays using spectral-based colorimetrically calibrated multicolor camera

Abstract: Described are a system and method to calibrate displays using a spectral-based colorimetrically calibrated multicolor camera. Particularly, discussed are systems and methods for displaying a multicolor calibration pattern image on a display unit, capturing the multicolor calibration pattern image with a multicolor camera having a plurality of image sensors, with each image sensor configured to capture a predetermined color of light, comparing a set of reference absolute XYZ coordinates of a set of colors from the multicolor calibration pattern with a set of measured XYZ color coordinates captured using the colorimetrically calibrated camera, and calibrating the display unit based on the comparison between the reference coordinates and the measured coordinates.

Method and apparatus for scheduling packet data transmissions in a wireless communication system

Abstract: A method (100) for scheduling packet data transmissions in a wireless communication system wherein a per-user Priority Function (PF) is calculated as a function of packet delay time of the user. When a given user has a packet delay time violating a threshold, the PF of the user is adjusted accordingly. In one embodiment, a delay function is applied to the PF calculation, wherein the delay function considers the average requested data rate for all users in the active set having pending data and the average data rate of a given user.