Motorola Corporation

Motorola Mobility LLC

Michael J Kinnavy

William K Morgan

Michael Mao Wang

Dean E Thorson

Chad W Bohlmann

Donald P Cordell

Takeshi Morishima

William P Alberth

Daniel F Tell

A method () and corresponding data processing system () of detecting cloned or duplicated communication units based on received signals is described. The method comprise receiving a signal () comprising a sequence of data symbols; and determining () whether the signal originated from a plurality of communication units based on a parameter, such as power or quality level of a group of the data symbols.

Detection of cloned communication units

In accordance with the preferred embodiments of the present invention, a method () and an apparatus for enabling discontinuous transmission feature on a mobile station () are described herein. The apparatus generally includes a transmitting unit () and a controller (). The controller () is operable to control transmission of mobile information via a first communication resource of a reverse link () in response to a trigger event. Accordingly, the transmitting unit () is operable to transmit mobile information via a second communication resource of the reverse link (). The second communication resource is operable for discontinuous transmission.

Method and apparatus for enabling discontinuous transmission feature on a mobile station

In accordance with the preferred embodiments of the present invention, a method () and a mobile station () for enabling a preferred slot cycle are described herein. The mobile station () monitors for transmission from a base station () via a communication resource () based on an operating slot cycle index (SCI) corresponding to an operating slot cycle. The mobile station () generally includes a receiving unit (), a transmitting unit () and a controller (). The receiving unit () receives control information associated with slot cycles operable by the base station (). The controller () is operable to adjust the operating SCI to a preferred SCI in response to a trigger event. The preferred SCI corresponds to a preferred slot cycle. The transmitting unit () transmits the preferred SCI to the base station () so that the mobile station () is in communication with the base station () via the communication resource during a slot, which reoccurs based on the preferred slot cycle.

Method and mobile station for enabling a preferred slot cycle

A wireless communication system includes a transmitting device having a formatting circuit. The formatting circuit for constructing a frame, the frame including frame header, frame CRC, and a message slot. The message slot having a predetermined length for carrying signaling message, the signaling message including a message header having the message length, a message body and a message CRC, the message body and message CRC being repeated to fill the message slot, a partial copy being copied into the message slot if the slot is not full and a full copy of the message body and message CRC will not fit. A receiving device includes a format circuit coupled to the decoder for outputting a message from the decoded frame, the format circuit to check the frame CRC to determine if the frame CRC is good, to check the message CRC to determine if the message CRC is good, and to reconstruct the message from the full and partial copies of the message if the message CRC is not good.

Method and apparatus for formatting a message in a wireless communication system

A code division multiple access (CDMA) cellular telephone with reduced transmissions from the CDMA cellular telephone to a remote base station. A variable rate vocoder is operable to receive an input signal and encode the input signal at any of a plurality of frame rates responsive to an amount of audio content present in the input signal. A controller monitors an encoding rate of operation of the variable rate vocoder and detects when the variable rate vocoder operates at a predetermined rate. The controller then causes a transmitter coupled to the variable rate vocoder to reduces a duty cycle of operation.

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Park Ridge, IL, United States of America

Michael J Kinnavy