Motorola Corporation

Motorola Solutions, Inc.

Niranjan Nath Segal

Jheroen Pieter Dorenbosch

James Earl Womack

Anatoly S Belkin

Alex P Hirsbrunner

Ajaykumar R Idnani

Peter M Drozt

Robert L Breeden

Zaffer S Merchant

Jennifer Ann Pierce

Luqing Wang

Peter P Hux

Marty Ou

Josheph Hoshen

Jennnifer A Pierc

Kenneth T Smelcer

Syed A Hussain

Anotoly S Belkin

Jennifer Pierce

A method, information processing system, and wireless communication network determine a domain name associated with at least one device for providing services to the at least one device in a network. A service request () that includes a unique identifier associated with at least one device () is received. A query of a remote information processing system () is issued for retrieving a plurality of identifier ranges (). Each of the identifier ranges is associated with one of a plurality of domain names. An identifier range comprising at least the unique identifier associated with the at least one device () is identified in the plurality of identifier ranges (). A domain name associated with the identified identifier range is determined (). The domain name that has been determined is associated with the at least one device ().

Using domain name service for identifying a home domain of a roaming device

A wireless communication unit (), network switch () and corresponding methods facilitate retrieval, routing, and management of on-hold calls (FIG.-FIG.) within a first communication network () when the unit is operating in a second communication network () that is loosely coupled to the first. The communication unit comprises a transceiver () configured to support an air interface with the first and the second communication network; and a controller () arranged to cooperatively operate with the transceiver to retrieve an on-hold call from the first network via a call leg established to support a handout to and while the unit is operating in the second network. A user interface () and in band signaling over the call leg facilitates management, connecting, disconnecting, etc., of the on-hold calls by the communication unit.

On hold call retrieval and routing

A method () and apparatus () for controlling a session between communication units (-) sharing a group Internet Protocol (IP) multicast address. The method includes determining communication units from which a response to a session initiation protocol (SIP) control message is not required and preparing the control message which is sent to the communication units using the group address with information used to control from which of the of communication units the response is required. The SIP control message is sent to a second communication unit using a unicast address indicating that the response is required.

Session control using a multicast address

A communication unit (CU) () network controller () and corresponding methods (-) are described that facilitate selectively routing calls. The CU includes a transceiver () suitable to support an air interface with a local area network (LAN) () and with a wide area network (WAN) () and a controller () that is coupled to and controlling the transceiver. These are each and collectively configured to determine when a bearer leg within the WLAN will not support a call attempt over the bearer leg and responsive to so determining, initiate the call over another bearer leg, e.g. within the LAN or the WAN. The determining includes, for example, receiving a message () that indicates or implies that the call can not be supported.

Method and apparatus for routing calls

A wireless communication unit (), network switch () and corresponding methods facilitate retrieval, routing, and management of on-hold calls () within a first communication network () when the unit is operating in a second communication network () that is loosely coupled to the first. The communication unit comprises a transceiver () configured to support an air interface with the first and the second communication network; and a controller () arranged to cooperatively operate with the transceiver to retrieve an on-hold call from the first network via a call leg established to handout on-hold calls to and while the unit is operating in the second network. A user interface () facilitates management, connecting, disconnecting, etc., of the on-hold calls by the communication unit.

Method and apparatus for routing on hold calls

An access point () conveys () to communication units () of a plurality of multicast groups, a first indication that the access point supports a method for sending a multicast message. The access point receives () a multicast message directed to a receiving one of the plurality of multicast groups, and determines () that the communication units belonging to the receiving one of the plurality of multicast groups also support the method. The access point signals () a second indication to selectively awaken the communication units belonging to the receiving one of the plurality of multicast groups, and transmits () the multicast message to the receiving one of the plurality of multicast groups in a manner that allows () at least one communication unit not belonging to the receiving one of the plurality of multicast groups to remain asleep during the transmitting.

Method and apparatus for sending a multicast message

The present invention reduces network operator memory requirements, administrative overhead, and operational costs by enabling a solution for SS7/IP communication that uses a single domain (e164.arpa) in ENUM for numbering schemes such as E.164, E.212, and E.214. Employing the present invention enables the SUA to deliver SCCP-user messages to the destination node using Global Title Information based on IMSI or E.164 numbers. Network operators populate ENUM databases with MAP URIs associated with mobility services such as MSC, HLR, and VLR. End point service node IP addresses, associated with a set of services, are stored in ENUM corresponding to the SAPC belonging to the local operator for a given PLMN. These end node IP addresses then are returned in the ENUM/DNS response to an E.164-based query.

Method and apparatus for a telecommunications network to communicate using an internet protocol

A wireless mobile station experiencing quality-of-service events (including, in some embodiments, quality-of-experience events) automatically transmits corresponding information, along with information that identifies a corresponding access point, to a quality-of-service network element. The latter can use this information to rapidly detect a quality-of-service problem and to also respond, automatically, with a problem isolation strategy and, if desired, automated curative actions such as automated re-routing.

Wireless quality-of-service detection method

A dual-band wireless subscriber unit (SU) () having an enterprise address of Eand a cellular address of C, corresponding method (), software program (), and WLAN () determines () that the SU is about to leave a wireless local area network (WLAN) (). In response, when the SU is involved in a call on E, the SU sends () to the WLAN a SIP message, for example a Refer message with a 'Refer To' field of Cif an ongoing call or a SIP Redirect message with a contact address of Cif a new call is attempting to begin on E. In response to receiving either message, the WLAN seamlessly transfers () the call to C

Method and apparatus in a wireless communication system for facilitating a handoff

A wireless communication unit () is operable to reformat dialed numbers according to dialing plans for a plurality of communication networks (), where the unit comprises a transceiver () for communicating with any of the plurality of communication networks; a user interface () operable to provide a number corresponding to a target unit (') to be called; and a controller () implementing a corresponding method to provide a reformatted number (FIG.) corresponding to the number and according to a preference that is specific to the wireless communication unit, where the reformatted number is compatible with a dialing plan for a communication network that will be used to place a call to the target unit.

Method and apparatus for reformatting dialed numbers

When using a first wireless communication system to facilitate at least a first wireless communication and in response to detecting at least one handover condition, a mobile station can automatically use a second wireless communication system to establish a communication link to a private branch exchange that is associated with the first wireless communication system and automatically transmit a pre-established message to the private branch exchange to trigger a handover of the first wireless communication from the first wireless communication system to the second wireless communication system.

Wireless communication handover method and apparatus

A wireless communication unit (), network switch () and corresponding methods facilitate routing and handover or handin of calls from a second network () to a first network () when the unit has been operating in second network and is being handed in to the first network. The communication unit comprises a transceiver () and a controller () arranged to operate with the transceiver to determine () that the wireless communication unit is within a coverage area of the first network; to exchange messages () corresponding to call appearance information with the switch in the first network; to decide whether a call within the second network can be handed in to the first network based on the exchange of the messages (); and to initiate () a handin of the call to the first network only when the decision is affirmative.

Method and apparatus for hand over of calls

A wireless communication unit () and corresponding method () selectively routes calls originated in one wireless communication network () through another wireless communication network (). The communication unit comprises a transceiver () suitable to support an air interface with a first wireless communication network and with a second wireless communication network; a user interface () operable to initiate a call to a number of a target unit; and a controller (), coupled to the transceiver and the user interface, and operable, responsive to the call initiation and when the wireless communication unit is operating in the second wireless communication network, to selectively hairpin the call through the first communication network.

Selective hairpinning of calls through another network

A subscriber unit (,) in a wireless messaging system records (,) a message sequence number corresponding to a message received, and an indication of whether the subscriber unit acknowledged the message. Upon registration with a two-way portion (,) of the wireless messaging system, the subscriber unit reports (,), to the two-way portion, information of a type selected from (a) missing message sequence numbers, and (b) message sequence numbers corresponding to messages received and not acknowledged, the type selected (,) being that which generates a smaller amount of inbound traffic.

Method and apparatus for facilitating a retransmission of missed messages in a wireless messaging system

A control system (101) is utilized by a radio communication system for communicating with selective call transceivers (102). The control system (101) includes an input interface (114) for receiving a message from a user, a processing system (111) for processing and storing the message, and a local area network (LAN) for controlling a transmitter system (105) for transmitting the message. The LAN has an architecture providing communication redundancy. The LAN includes at least one data communication path (118) for linking data communications to and from at least one data communication device (112, 114). The LAN further includes a first and second ethernet switch (108, 109) coupled to a first and second end (120, 122) of the at least one data communication path (118) for routing the data communications thereto and therefrom. The processing system (111) is coupled to the ethernet switches (108, 109) for transmitting and receiving the data communications.

Growing community of inventors

Arlington, TX, United States of America

Niranjan Nath Segal