Motorola Corporation

Google Inc.

Motorola Mobility LLC

David J Krause

William Paul Alberth, Jr

William E Welnick

Brian David Storm

Daniel J Declerck

Robert T Love

Brian Keith Classon

Hao Bi

Sean S Kelley

Senaka Balasuriya

Chinmay Dhodapkar

Michael A Eberhardt

Radhika Agrawal

Amruth Ramachandran

Thomas M Wied

Joey Chou

William F Taranowski

This document describes techniques and devices for exchanging status messages during a call. Techniques described herein utilize a computing device to establish a real-time person-to-person media session (e.g., a call) with another device through a wireless communication network. Through the wireless communication network, the computing device may perform a handshake procedure to determine whether the other device supports an exchange of status messages during the media session. If supported by both devices, the computing device may exchange status messages using, for instance. Real-Time Transport Protocol (RTP) header extensions and/or unused dual-tone multi-frequency (DTMF) digits (e.g., digits A, B, C, or D).

Exchanging status messages during a call

An apparatus () generates a preferred roaming list () for a wireless mobile station () that includes area identification data (such as GEO GROUP_ID) () corresponding to an area serviced by at least one wireless wide area network, such as a ground based CDMA system and an area services by at least one in-vehicle wireless pico-cell (), such as a wireless CDMA pico-cell located on an aircraft or any other suitable vehicle. The area identification data () is associated with a wireless in-vehicle pico-cell system identification data () and in the case of a CDMA pico cell system, a system identification data SID) and network identification (NID) data pair () associated with the in-vehicle wireless pico-cell ().

In-vehicle pico-cell system and method therefor

In-vehicle pico-cell system and methods therefor

An apparatus and method for route navigation for multiple destinations. Route parameters can be received and a route () can be generated for multiple destinations (). An estimated time of arrival can be calculated for each destination. An updated estimated time of arrival can be generated for one of the destinations. A messaging service message including the updated time of arrival can be sent to a recipient () associated with the respective destination if the updated time of arrival deviates from the original estimated time of arrival.

Apparatus and method for route navigation of multiple destinations

A circuit () to acquire a more-preferred stored SID element () includes memory () and logic circuitry (). The memory () stores a roaming list (), such as a PRL, that includes a plurality of SID elements ranked according to an order of preference including at least one more-preferred stored SID element () and at least one less-preferred stored SID element (). The logic circuitry () is coupled to the memory () and performs a first more-preferred SID acquisition sequence () and then second more-preferred SID acquisition sequence (). The second more-preferred SID acquisition sequence () includes repeatedly attempting acquisition of the at least one more-preferred stored SID element () during the second more-preferred SID acquisition sequence () while also attempting to acquire the at least one less-preferred SID element () if desired.

Circuit and method for acquiring a more-preferred system identification (SID) element

In a method of configuring a mobile communication between a position determination entity and a mobile device, an indication that the mobile device has an ability to perform a positioning system search simultaneously with a communication is sent to the position determination entity. A preferred response quality indicator is set to a state that will allow the mobile device an extended period to provide to a location of the mobile device to the position determination entity when the mobile device has the ability to perform a positioning system search simultaneously with a communication.

Method for mobile to inform base station of additonal GPS capabilities

A method and apparatus is provided for simultaneously accessing a broadcast channel which allows for maintaining registration on the broadcast channel and a second channel. The broadcast channel includes a reverse link access channel for a portable communication device () to send registration messages to a base station and the method initially includes the step of determining whether a predetermined event requiring registration of the portable communication device on the broadcast channel has been detected (). After detecting the predetermined event, it is determined whether the portable communication device is communicating on the second channel (). If not communicating on the second channel (), registration on the broadcast channel is accomplished by transmitting a registration message on the reverse link access channel (). If communicating on the second channel (), the registration message is transmitted on the broadcast channel asynchronously () or, if supported by the base station (), as a databurst of a packet of information on the second channel ().

Method and apparatus for simultaneously communicating on a voice channel and broadcast channel

A circuit () and method employing logic circuitry () and memory () identifies a reverse link limited channel (). The logic circuitry () identifies a reverse link limited channel based on determining that an access probe failure occurred on a channel (). The logic circuitry () causes the memory to store reverse link limited channel data () in response to the logic circuitry () determining that the access probe failure occurred. The reverse link limited channel data (), for example, may be a channel identification associated with the channel (), a base station identification associated with the channel (), a location identification of the circuit () or any data suitable for identifying and adapting dynamically to the reverse link limited channel.

Circuit and method for adapting to reverse link limited channels

Methods in communications devices and networks for reducing an infrastructure registration race condition. In one embodiment, a communications device transmits () a first network connection request is a first network, and after waiting a specified time interval, the communication device transmits () another network connection request to the first network. The communications device may determine the time interval, or it may be received () from the network. Alternatively, a time stamp or some other indicium is applied to the connection requests transmitted by the communications device so that a home location register or other entity may determine the order in which the requests were transmitted.

Wireless mobile station loss prevention in multi-network communication systems

An apparatus and method for adaptive broadcast transmission. A broadcast transmission can be received. Insufficiency of a broadcast channel quality can be determined. A negative acknowledgement signal can be sent on a common uplink channel in response to determining the broadcast channel quality is insufficient. The negative acknowledgement signal can be received on the common uplink channel at another location, the negative acknowledgement signal indicating broadcast channel quality is insufficient. The broadcast channel quality can be adjusted in response to receiving the negative acknowledgement signal.

Apparatus and method for adaptive broadcast transmission

An apparatus (100) maintains a Pilot Set in a digital communication system that utilizes Code Division Multiple Access. The apparatus comprises a logic and control circuit (113) for providing instructions to a searcher receiver (109). The searcher receiver, in response to the instructions, sequentially scans active pilots, then candidate pilots, and then pre-candidate pilots. The scan of the pre-candidate pilots continues until all but a predetermined number of pre-candidate pilots have been promoted or demoted. Then the searcher receiver alternately scans the predetermined number of pre-candidate pilots and the neighbor pilots. The searcher receiver terminates alternate scans of the predetermined number of pre-candidate pilots and the neighbor pilots when a one of the neighbor pilots is promoted, and resumes the scan of the pre-candidate pilots.

Method of and apparatus for pilot set maintenance

A wireless communication device 100 acquires a pilot channel before an assigned slot when the wireless communication device is operating in the slotted mode of a CDMA system. The wireless communication device comprises a searcher receiver 107 that determines the short-term average pilot strength of active and neighbor pilot channels. Finger receivers 107 determine the long-term average pilot strength of the active and neighbor pilot channels. A logic and control circuit 113 assigns the finger receivers to the pilot channels according to their short-term average pilot strength, determines if the long-term average pilot strength of a neighbor channel is greater than the active pilot channel's pilot strength, and determines to hand off to the neighbor pilot channel with the greater long-term average pilot strength. Moreover, an early detection correlation length can be dynamically adjusted according to the pilot strength of the active pilot channel to shorten the pilot acquisition process.

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Kenosha, WI, United States of America

David J Krause