Motorola Corporation

Motorola Mobility LLC

Motorola Solutions, Inc.

Google Inc.

Nokia Solutions and Networks Oy

Shahab Sayeedi

Xiang Xu

Wayne W Ballantyne

Sean S Kelley

Shreesha Ramanna

Jeffrey D Bonta

Ronald Thomas Crocker

James Scott Marin

Joseph Schumacher

Lewis J Milton

Kim Sun Loh

Fei Xiong

Anda M Farcasanu

Various communication systems may benefit from congestion management. For example, code division multiple access wireless networks may benefit from identifying and tracking of congestion. A method may include identifying a cause of actual or potential congestion. The method may also include notifying a radio access network regarding the cause of actual or potential congestion.

Method, apparatus, computer program product and system for identifying, managing and tracking congestion

A method is described that is for handing over a multi-mode mobile device from a first network technology to a second network technology. The method includes initiating by the multi-mode mobile device a first packet session in a first wireless network and detecting by a multi-mode mobile device a second wireless network supporting a different access network technology. The method also includes determining a Quality of Service requirement and completing pre-registration session establishment procedures for a second session in the second wireless network when the first session includes at least one of a QoS sensitive service and real time service by the first wireless network and mobile device and after completion of the pre-registration session establishment procedures the multi-mode mobile device receives service from the first wireless network and remains dormant on the second wireless network.

Method for conserving resources during wireless handover of a dual mode mobile station

Various embodiments are described to provide more efficient interworking in inter-technology networks. A first network node () provides access network service to remote units (, e.g.) using a first access network technology, while a second network node provides access network service to remote units using a second and different access network technology. The first network node indicates to a networking device (), what messaging associated with the second access network technology will be supported by a remote unit via the first network node. The networking device receiving this indication can then determine whether new messaging for the remote unit associated with the second access network technology and to be conveyed via the first network node, is supported. This networking device can then prevent the conveyance of the new messaging via the first network node.

Method and apparatus for interworking in an inter-technology network

Various embodiments are described which can serve to increase the cross paging call success rate in joint networks. Resource reservation by a requesting network () in the context of cross paging is described. In general, such resource reservation may be triggered by the occurrence of any one of a variety of events in conjunction with the requesting network determining that a communication session with an AT () is desirable. Examples of triggering events include the following: the AT subscribing for resource reservation as a matter of configuration, the AT having a particular call state and perhaps with regard to particular services, the AT requesting resource reservation (before or after being paged/notified of the requesting network's desire to provide service, the communication session for which the requesting network is requesting the AT is of a particular type, and/or resource reservation is an operational default system operation.

Method and apparatus for cross paging a multi network communication system

Various embodiments are described to address some of the inefficiencies in present-day network initiated handovers. A serving node () sends a first message requesting a remote unit () to handover but does not indicate any network nodes to which to handover and then receives, in response, a second message indicating a target node (e.g.,) preferred for handover by the remote unit. The serving node then notifies the target node of a potential handover by the remote unit and sends a third message to indicate to the remote unit to proceed with a handover to the target node. By first obtaining a preferred handover target from the remote unit and then notifying that target node, a network initiated handover may be accomplished more efficiently than by using the known technique of notifying prospective nodes prior to obtaining any acceptance or preference from the remote unit.

Method and apparatus for supporting a network initiated handover in a wireless network

A system and method to provide cross-paging between circuit and packet data networks includes providing a mobile station being on a circuit-switched communication in a first area while maintaining a packet data session on the packet data network. When the mobile station moves to a second location area served by the circuit-switched network while the mobile station is still idle with respect to packet communications on the packet data network the location of the mobile station with respect to the circuit-switched network becomes unknown by the packet data network. In this case, the circuit-switched network informs the packet data network of a change in the mobile switching center serving the mobile station.

Cross-paging between communication networks

A method is described that is for handing over a multi-mode mobile device from a first network technology to a second network technology. The method includes initiating by the multi-mode mobile device a first packet session in a first wireless network in an area of multi-technology wireless coverage and detecting by a multi-mode mobile device a second wireless network supporting a different access network technology than the first wireless network. The method also includes determining a Quality of Service requirement for services supported by the session, and completing initial network entry and session establishment procedures by the multi-mode mobile device for a second session in the second wireless network when the first session includes at least one of a QoS sensitive service and real time service by the first wireless network and mobile device, and not completing initial network entry and session establishment procedures by the multi-mode mobile device when no QoS sensitive service and real time services are supported by the mobile device and first wireless network.

An apparatus and method for sending emergency alert information to inactive mobile stations in a wireless communication system includes a step of receiving, by a radio access network, emergency alert information for mobile stations. A next step includes determiningwake-up periods for at least two inactive mobile stations. A next step includes sendinga message to each of the at least two mobile stations, during the wake-up periods for each of the at least two each inactive mobile station, that includes instructions to wake up in a common emergency alert listening frame. A next step includes conveyingemergency alert instructions in the common emergency listening frame to the mobile stations.

Emergency alert service for inactive mobile stations in a communication system

Various embodiments are described for supporting mobility in an inter-technology network. Such a network (, e.g.) includes multiple interconnected access networks, utilizing various access technologies, and perhaps having overlapping, but non-aligned coverage areas. The prior art relies on remote units to originate registration signaling as they move from one service coverage area or registration region to the next, for each of the various access networks. In contrast, embodiments of the present invention utilize network originated signaling to update overlapping networks/network nodes of mobility events of which one access network (-, e.g.) is aware but of which other access networks (and, e.g.) may not be aware.

Method and apparatus for supporting mobility in inter-technology networks

A communication system is provided that allows a Hybrid Access Terminal (HAT) that is monitoring, or is engaged in a circuit voice call in, a circuit switched network and has a dormant packet data session anchored on a packet switched network, to send packet data to, and to receive packet data from, a packet data network connected to the packet switched network without having to switch to the packet switched network and even though a packet data session is not established in the circuit switched network.

Method and apparatus for an exchange of packet data between a wireless access terminal and a packet switched communication system via a circuit switched communication system

Various embodiments are described to address the need for more effective management of packet data loss in wireless communication systems. When a packet data destination () that is receiving a flow of packets for a packet data service instance indicates to the packet data source () of the flow that the flow should be suspended, it also indicates to the source how to process packets for the service instance while the flow transmission is suspended. For example, the packet data destination may indicate an event or condition that is triggering the flow suspension, the source can then begin buffering packets, discarding packets, starting timers, and/or taking other packet processing actions to manage packet data loss in view of the packet data destination's indication. Alternatively, the packet data destination may explicitly indicate the packet processing actions the source should take while the packet flow is suspended.

Method and apparatus for managing packet data loss in a wireless network

Various embodiments are described to address the need for reduced handoff delays associated with inter-AN (access network) HRPD (High Rate Packet Data)/1XEV-DO handoffs. The disclosed approach enables an AT () with an active packet data session to perform a hard handoff from a source AN () to a target AN () without having to force the data session dormant. Unlike known hard handoff approaches that involve coordination by a mobile switching center (MSC), the disclosed approach uses peer-to-peer signaling with no MSC involvement, such as that between source and target ANs or PCFs (). For example, data session information at the source side is transferred via new A13 messaging to the source entity's target-side peer to otherwise reduce signaling between the source and target equipment.

Method and apparatus to facilitate inter-AN HRPD hard handoff

In a packet data communication system, a first communication device and a second communication device, connected to each other by an A8/A9 interface, exchange software version information informing of the version of software that is stored in, and executed by, each communication device. The software version information is included in independent, self-contained software version messages and software version acknowledgment messages that may be exchanged at any time between the first communication device and the second communication device, such as during call set up or in response to a disruptive event.

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Naperville, IL, United States of America

Shahab Sayeedi