Motorola Corporation

Motorola Mobility LLC

Google Inc.

David R Heeschen

Jean Khawand

Mitchell E Renko

David S Seekins

Gustavo Dario Leizerovich

David L Brown

Thomas V D'Amico

Robert L Breeden

Charbel Khawand

Chin Pan Wong

Stuart S Kreitzer

Roberto Gautier

John Shemelynce

Audrey Longhurst

Gordon Wayne James

Daniel Jose Landron

Robert Arthur Hartman

Robert H Pichette

Geroncio O Tan

Mark S Stuglik

Richard E Bessom

Dhiraj Gandhi

Jason Young

Mauricio Flores

Gordon W Chiu

John I Stahl

Prabhu V Patil

Vincent Vigna

Frank E Lambrcht

Anuj Atri

Basavanna Vamadevappa Gowda

Thomas V D'amico

A device establishes a first communication session with an endpoint and is configured to perform the first session via one of two different call configurations. In response to unplanned termination of the first session, the device identifies a specific call terminating condition and determines when the call terminating condition is within a first subset of call terminating conditions. Then, in response, the device: creates a record of the first session, including information identifying the established call configuration; and activates a timer associated with the record. The device then autonomously accepts a request to establish a second communication session from an endpoint and implements the same call configuration for the second session, in response to the request (a) being received before expiration of the timer and (b) establishing the second session between the communication device and the same endpoint. With a Push-to-Talk call, the established call configuration is full duplex mode.

Selective auto-accept of full duplex push to talk call

A multi-mode communication device () uses a first wireless modem () and a second wireless modem () which operates independently to facilitate communication over different air interfaces. Both modems are powered by a common battery (). When the first wireless modem engages in a communication activity, the second wireless modem's maximum operating power level is reduced. When the first wireless modem ceases communication activity, the second wireless modems full operating power range is restored.

Method and apparatus for controlling power among modems in a multi-mode mobile communication device

Within a communication device, a method of managing a plurality of modems can include determining a first measure of transmission power for a first modem (), wherein the first measure of transmission power is a running total of transmission power for the first modem over a predetermined time period, and determining a second measure of transmission power for a second modem (), wherein the second measure of transmission power is a running total of transmission power for the second modem over the predetermined time period. If a sum of the first measure of transmission power and the second measure of transmission power exceeds a threshold during the predetermined time period, at least one predetermined action can be performed ().

Monitoring multiple modem transmission in a communication device

A multi-camp mobile communication device () includes a first radio modem () and a second radio modem (). Each modem is designed to communicate with a respective communication system (). Upon engaging in an interconnect call () over the first modem with the first communication system, the multi-camp mobile communication device receives a dispatch call at the second modem () from the second communication system. The multi-camp mobile communication device replies to the dispatch call with a pre-recorded message (). The dispatch calling party may respond to the pre-recorded message with a voice message that is recorded by the multi-camp mobile communication device ().

Method of operating a multi-camp mobile communication device while engaged in a call and receiving a dispatch call

A system () of targeted broadcasting in a cellular communication system during an event can include at least one mobile unit () having stored therein scheduling information relating to an event, a designated location for the event, and a designated group channel for monitoring such event. The mobile unit can further be programmed to monitor () for the event in a designated location and on a designated group channel during a predetermined time window and receive () a targeted message during the event on the designated group channel if a current location of the mobile unit matches the designated location stored. The mobile unit can be programmed to transmit at least one group call message response in response to receiving the group call message only when the mobile unit is in the designated location. The system can further include fixed network equipment () that transmits data related to the event.

Method and system for targeted broadcasting

A voice channel data processorand corresponding methodoperable in a wireless communications unit'sreceiver and transmitter to facilitate data transmission on a voice channel includes an encoderfor encoding data traffic as a transmit voice frame having a predetermined vocoder parameter and inserting the transmit voice frame into a stream of transmit voice frames with voice traffic and further includes a decoderfor parsing a stream of received voice frames to obtain a vocoder parameter for each, comparing the vocoder parameter for each received frame to the predetermined vocoder parameter, routing the received voice frame for processing as data traffic when the comparison is favorable, and otherwise routing the received voice frame for processing as voice traffic.

Method and apparatus for transferring data over a voice channel

A radio communication system (100) includes equipment (112) that manages communication initiated at a subscriber unit (122) and targeted at another subscriber unit (124). At the initiating subscriber unit, a communication mode is selected (410) from among multiple communication modes supported by the target subscriber unit. A mode independent identifier is obtained (420) for the target subscriber unit, and transmitted (430) to the system equipment along with the selected communication mode. The system equipment uses information based on the mode independent identifier to access (510, 520) the target subscriber unit. The system equipment then operates to enable (530, 540) the communication mode at the target subscriber unit, and to establish (550) communication between the initiating and target subscriber units.

Method and apparatus for radio system with mode based subscriber

A subscriber unit handles incoming calls routed through an old server site while in the process of switching site affiliation to a new server site (500). The subscriber unit initiates the switching of site affiliation (510), and during the process, alternates between receiving communication from the new server site (520) and receiving communication from the old server site to monitor for an incoming call (530). When an incoming call routed through the old server site is detected (540), the subscriber unit aborts or suspends the switching process and accepts the incoming call through the old server site (551, 552).

Method of processing a call while switching site affiliation in a radio

A mobile station (100) maintains a preferred bandmap (106) and a fixed bandmap (104). Upon powering up the mobile station, the mobile station begins scanning frequencies listed in the preferred bandmap. The strength of each detected carrier signal is measured, and the mobile station connect to the serving cell having the strongest carrier signal. The preferred bandmap is maintained by placing the frequency of the most recently connected serving cell at the head of the list, and moving other frequencies down the list as other are added or rotated to the top of the list.

Method for establishing a wireless communications link in a reduced time

A transceiver (107) operates in a TDMA communication system (100) with a primary server (102) and at least one other potential server (103). The transceiver (107) has defined transmit slots and defined receive slots for communication with the primary server. Mandatory transmit slots are identified from among the defined transmit slots according to a particular specification. The transceiver schedules signal quality measurements for the potential server based at least in part on the particular specification for identifying mandatory transmit slots (400).

Method of scheduling signal quality measurements in a TDMA communication

A portable radio (104) initiates a communication link using a synchronous protocol format. A base station (102) generates a synchronization pattern (200) which includes a marker. The marker (202) includes a generic code that invites portables to make link requests. The portable radio (104) synchronizes to the marker (202) and recognizes the generic code that indicates base availability. The portable radio (104) sends a link request in response to the generic code to initiate the communication link, and the base station (102) grants a link in order to establish the communication link.

Method and apparatus for establishing a communication link

A method of handling a charge authorization in a cordless phone (12) is provided wherein a memory (53) in the cordless phone (12) is credited (634) by a value representing a purchased amount prior to a usage of the cordless phone (12). The usage of the cordless phone is allowed (420) depending on that value which is debited (522) during the usage of the cordless phone.

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Coral Springs, FL, United States of America

David R Heeschen