Motorola

About: Motorola is a company organization based out in Schaumburg, Illinois, United States. It is known for research contribution in the topics: Signal & Communications system. The organization has 27298 authors who have published 38274 publications receiving 968710 citations. The organization is also known as: Motorola, Inc. & Galvin Manufacturing Corporation.

Device, method and system for variable bit-rate packet video communications

Abstract: The present invention provides a device (100), method, and system for, in an entry node (102) of a packet communication network, transcoding (104) a received constant bit-rate video bitstream to a variable bit-rate video bitstream, packetizing (106) the variable bit-rate video bitstream into video packets for efficient transport of a video signal over a packet-switched network.

Radio link montoring in a wireless communication device

Abstract: Methods and apparatus' of determining radio link quality are disclosed According to various implementations, information indicating the time-frequency blocks to be monitored by a UE to enable the UE to locate a control channel is determined The UE receives configuration information regarding resources used by a channel state information reference signal It also receives configuration information regarding an interference measurement resource, as well as a channel state information reference signal The channel state information reference signal uses the channel state information reference signal resources A synchronization condition is determined based on the time frequency blocks to be monitored by the UE, the received channel state information reference signal and the interference measurement resource The determined synchronization condition is sent to a higher layer

A new scheduling approach using combined dispatching criteria in wafer fabs

Abstract: In this paper, a scheduling approach that combines multiple dispatching criteria into a single rule, with the objective of simultaneously optimizing multiple performance measures is proposed. This is accomplished using a linear combination with relative weights. The weights identify the contribution of the different criteria. The weights' assignments to the different criteria are optimized using a mixture design of experiments (DOE) and multiple response optimization. Results using this new approach show significant improvement versus the use of a single dispatching criterion.

Power control circuit for a radio frequency transmitter

Abstract: A gain controller (130) for a radio frequency (RF) transmitter (102) controls a power level of a signal (123) transmitted within a predetermined range of output power levels. The gain controller (130) provides the first gain control signal (131) and the second gain control signal (133) responsive to an output power level control signal (150). The first gain control signal (131) controls a gain of a first variable gain stage (144) to vary the power level of the transmit signal (115) at an intermediate frequency causing the output power level of the transmit signal (123) to vary over a lower range of the predetermined range of output power levels. The second gain control signal (133) controls a gain of the second variable gain stage (120) to vary the power level of the transmit signal (121) at a radio frequency causing the output power level of the transmit signal (123) to vary over an upper range of the predetermined range of output power levels. The power control circuit (130) is advantageously utilized in a code division multiple access (CDMA) radiotelephone (100) to provide power control over an 85 dB range of power levels while minimizing sideband noise emissions, current drain, and complexity of the RF transmitter (102).

Directional handover control in digital mobile radio systems employing maho

Abstract: A method of selecting handover targets for a communication unit (40) exchanging a communicated signal through a serving base site (10-19) in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit (40) to the serving base site (10-19). The method comprises the steps of comparing a timing advance value with a first threshold. The first threshold may be equal to a distance one and one-half times the radius of the serving cell. When the timing advance value exceeds the first threshold, a base site frequency list is modified to include base sites non-adjacent the serving base site. The identity of the base sites non-adjacent the serving base sites may be determined from the directionality of communication unit (40). The method further includes the step of selecting a handover target providing highest relative RRSI value to the communication unit (40) from the modified base site frequency list.