KR101302239B1 - Methods and apparatus for use in processing disconnected emergency calls and other communications involving mobile communication devices and the remote monitoring thereof - Google Patents

Abstract

A method and apparatus for use in handling disconnected emergency calls and other communications associated with a mobile communication device, as well as remote monitoring of such a mobile communication device are disclosed. In one illustrative example, an emergency call with a public safety response point entity is established by a mobile communication device via a wireless communication network. If the emergency call is disconnected, the mobile device monitors to receive an incoming call message for the subsequent emergency call from the public safety response point entity. In response to receiving such an incoming call message, the mobile device refrains from generating an audible alert and automatically responds to subsequent emergency calls from public safety response point entities without detecting any manual response signals through its user interface. Answer In one particular approach, the mobile device automatically answers the call if the incoming call message is received within a predetermined period of time following the disconnection and the data indication of the incoming call message indicates that the message is for a subsequent emergency call or an automatic response. do. In contrast, if an incoming call message is received over a predetermined period of time following a disconnection, or if the data display does not indicate that the incoming call message is for a subsequent emergency call or an automatic response, the mobile device may receive an incoming call message. Refrain from automatically answering the associated call.

Description

METHODS AND APPARATUS FOR USE IN PROCESSING DISCONNECTED EMERGENCY CALLS AND OTHER COMMUNICATIONS INVOLVING MOBILE COMMUNICATION DEVICES AND THE REMOTE MONITORING THEREOF}

FIELD The present disclosure generally relates to the processing of disconnected emergency calls and other communications associated with mobile communication devices operating in a wireless communication network, as well as remote monitoring of such mobile communication devices.

With respect to the mobile communication device, in order to find the exact location of the mobile device associated with the emergency call, at the request of the Federal Communications Commission (FCC), the location at the enhanced 911 (E-911; Enhanced 911) ( Technologies expected to improve location-finding capabilities are being developed by wireless service providers.

The FCC is rolling out the E-911 in stages. Step 0 is a basic 911 process where wireless emergency calls are sent to a suitable public safety answering point (PSAP). The wireless service provider should have the call sent to the PSAP even if the caller is not a subscriber to their service. In step 1, the FCC requires that the mobile device's telephone number be displayed with each wireless emergency call so that the PSAP operator can reconnect the call if the connection is lost. In step 2 (final step), the FCC requires the mobile device to have GPS functionality to convey more specific latitude and longitude information during the wireless emergency call. Location information should be accurate within 50-300 meters.

What is needed is a method and apparatus for handling disconnected emergency calls and other communications of mobile communication devices, as well as remote monitoring of such devices, to facilitate these and other improvements in wireless communication networks.

Described herein are methods and apparatus for use in handling disconnected emergency calls and other communications, and remote monitoring of such mobile communications devices. In one exemplary embodiment, an emergency call with a public safety response point entity is established by the mobile communication device via a wireless communication network. If an emergency call is disconnected, the mobile device monitors to receive an incoming call message for a subsequent emergency call from a public safety response point entity. In response to receiving such an incoming call message, the mobile device refrains from generating an audible alert and continues from the public safety response point entity without detecting any passive response signal through its user interface. Answer an emergency call automatically. In one particular approach, the mobile device automatically receives an incoming call message within a predetermined period of time following disconnection and indicates that the message is for a subsequent emergency call or automatic response in the data indication of the incoming call message. Answer the call with In contrast, if an incoming call message is received over a predetermined period of time following a disconnection, or if the data display does not indicate that the incoming call message is for a subsequent emergency call or an automatic response, the mobile device may receive an incoming call message. Refrain from automatically answering the associated call.

The present invention can provide for the processing of disconnected emergency calls and other communications associated with mobile communication devices operating in a wireless communication network, as well as remote monitoring of such mobile communication devices.

1 is a block diagram of a communication system including a mobile communication device for communicating over a wireless communication network.
2 is a more detailed example of a mobile communication device used in the wireless network of FIG. 1.
3 is a flow chart of a method for use by a mobile communication device, such as the mobile communication device described in connection with FIGS. 1 and 2, to handle emergency calls and other communications.
4 is a flowchart of a method for use in a wireless communication network, such as the wireless communication network of FIG. 1, in processing emergency communications for a mobile communication device, such as the mobile communication device described in connection with FIGS. 1 and 2.
5 is an exemplary diagram of an incoming call message that may have a data indication in one or more data fields to indicate whether the incoming call message is for a subsequent emergency call or an automatic response by the mobile communication device.
6 is for setting an audible alert response mode or silent response mode for an incoming call to a mobile communication device and / or for setting a manual answer mode or an auto answer mode for an incoming call to a mobile communication device. An exemplary diagram of a memory of a mobile communication device that can have a programmable data representation stored therein.
7 is a functional block diagram of a mobile communication device showing functionality associated with a handset talk mode and a speakerphone talk mode of a mobile communication device that may be controlled based on data indications in one or more data fields of an incoming call message.
8A and 8B are side views of one type of mobile communication device having an OPEN state (FIG. 8A) and a CLOSED state (FIG. 8B) that may be used in the techniques of the present disclosure.
9 is a call flow diagram to illustrate an immediate access feature that may be used for emergency call processing of the present disclosure for a GSM / GPRS network.

Described herein are methods and apparatus for use in handling disconnected emergency calls and other communications associated with mobile communication devices, as well as remote monitoring of such mobile communication devices. In one illustrative example, an emergency call with a public safety response point entity is established by a mobile communication device via a wireless communication network. If the emergency call is disconnected, the mobile device monitors to receive an incoming call message for the subsequent emergency call from the public safety response point entity. In response to receiving this incoming call message, the mobile device refrains from generating an audible alert and automatically on subsequent emergency calls from public safety response point entities without detecting any manual response signals through its user interface. Answer. In one particular approach, the mobile device automatically answers the call if the incoming call message is received within a predetermined period of time following the disconnection and the data indication of the incoming call message indicates that the message is for a subsequent emergency call or an automatic response. do. In contrast, if an incoming call message is received over a predetermined period of time following a disconnection, or if the data display does not indicate that the incoming call message is for a subsequent emergency call or an automatic response, the mobile device may receive an incoming call message. Refrain from automatically answering the associated call.

To illustrate a basic network architecture that may be used, FIG. 1 illustrates a communication system including a mobile station (MS) 102 (an example of a mobile communication device) that communicates via a wireless communication network 104 ( A block diagram of 100 is shown. Mobile station 102 preferably includes a visual display 112, a keyboard 114, and possibly one or more user interface (UI) 116, each of which is connected to a controller 106. The controller 106 is also coupled to the radio frequency (RF) transceiver circuit 108 and the antenna 110. Typically, the controller 106 is implemented as a central processing unit (CPU) that runs operating system software on memory components (not shown). The controller 106 will normally control the overall operation of the mobile station 102 and the signal processing operations associated with the communication function are typically performed in the RF transceiver circuit 108. Controller 106 interfaces with device display 112 to display received information, stored information, user input, and the like. Keyboard 114, which may be a telephone number keypad or a full alphanumeric keyboard, typically includes data for storage at mobile station 102, information for transmission to wireless network 104, telephone number to call, mobile station Commands to be executed on 102, and possibly other or other user input.

Mobile station 102 sends a communication signal to and receives communication signal from wireless network 104 via wireless link via antenna 110. RF transceiver circuitry 108 provides functionality similar to that of base station controller 128 of wireless network 104 (described later), including, for example, modulation / demodulation and possibly encoding / decoding and encryption / decryption. To perform. Those skilled in the art will appreciate that the RF transceiver circuitry 108 will be adapted to the particular wireless network or networks on which the mobile station 102 intends to operate. When the mobile station 102 is fully operational, the RF transmitter of the RF transceiver circuit 108 is typically turned on only while transmitting to the network, otherwise it is turned off to save resources. Likewise, the RF receiver of the RF transceiver circuit 108 is typically turned off periodically to save power until needed to receive a signal or information for a specified period of time (if any).

Mobile station 102 includes a battery interface 122 for receiving one or more rechargeable batteries 124. The battery 124 provides electrical power to the electrical circuits of the mobile station 102, and the battery interface 122 provides mechanical and electrical connections to the battery 124. The battery interface 122 is connected to a regulator 126 that regulates power to the device. The mobile station 102 may also include a memory module (such as a Subscriber Identity Module (SIM) or a Removable User Identity Module (R-UIM) that is connected or inserted into the mobile station 102 at the interface 118. 120) to operate. In this embodiment, the memory module 120 is a SIM. The SIM 120 is used above all to identify the end user (or subscriber) of the mobile station 102 and to personalize the device. Without the SIM 120, the mobile station terminal is not fully operational for communication over the wireless network 104. By inserting the SIM 120 into the mobile station 102, the end user can have access to some and all of his subscribed services. SIM 120 generally includes a memory and a processor for storing information. Since SIM 120 is connected to SIM interface 118, it is connected to controller 106 via communication line 144. To identify the subscriber, SIM 120 includes some user parameters, such as an International Mobile Subscriber Identity (IMSI). The advantage of using the SIM 120 is that the end user is not necessarily bound to any single physical mobile station. SIM 120 may also store additional user information for the mobile station, including calendar (or calendar) information and recent call information. As an alternative to SIM or R-UIM, mobile station 102 may operate based on configuration data programmed by a service provider into nonvolatile memory of mobile station 102.

Mobile station 102 is a single unit such as a data communication device, a cellular telephone, a multifunction communication device with data and voice communication capabilities, a personal digital assistant (PDA) capable of wireless communication, or a computer incorporating an internal modem. It may be configured as. Preferably, mobile station 102 is a small portable handheld telephone unit having a housing (eg, a small plastic housing) that contains or carries an electrical circuit and the components described herein. Alternatively, mobile station 102 may be a multi-module unit including a plurality of individual components, including but not limited to a computer or other device connected to a wireless modem. In particular, for example, in the mobile station block diagram of FIG. 1, the RF transceiver circuit 108 and antenna 110 may be implemented as a wireless modem unit that may be inserted into a port on a laptop computer. In this case, the laptop computer will include a display 112, a keyboard 114, and one or more secondary UI 116. The controller 106 is implemented as a CPU of a computer or a separate CPU in a modem unit. In addition, a computer or other device for which wireless communication is not usually possible may be adapted to connect to the RF transceiver circuit 108 and antenna 110 of a single unit device such as one of those described above to effectively assume its control. You can think of it. Note that mobile station 102 may have a more specific implementation as described later with respect to mobile station 202 of FIG.

Mobile station 102 communicates via wireless network 104 in wireless network 104, which may be, for example, a cellular communication network. In the embodiment of FIG. 1, wireless network 104 is configured in accordance with General Packet Radio Service (GPRS) and Global Systems for Mobile (GSM) technologies. If the wireless network 104 is configured in accordance with GSM / GPRS technology, the network and terminal may further operate in accordance with Enhanced Data Rates for GSM Evolution (EDGE) or Enhanced GPRS (EGPRS). However, any suitable type of network architecture and communication protocol can be used. For example, wireless network 104 may be configured in accordance with Code Division Multiple Access (CDMA) technology. As another example, the network may be based on an Integrated Dispatch Enhanced Network (iDEN), which is a high capacity digital frequency common communication system (TRS) that provides integrated voice and data services.

In this GSM / GPRS environment, wireless network 104 is a base station controller (BSC) 128, mobile telephone having a plurality of associated tower stations (one of which is shown in FIG. 1). Switching Center (MSC) 130, Signaling System 7 (SS7) Network 140, Home Location Register (HLR) 138, IP Network 134, RADIUS ( Remote Authentication Dial-In User Service (136) server 136, Serving GPRS Support Node (SGSN) 131, and Gateway GPRS Support Node (GGSN) 132. MSC 130 is connected to BSC 128 and to a landline network 142, such as a Public Switched Telephone Network (PSTN). SGSN 131 is connected to BSC 128 and to GGSN 132, which in turn is connected to a public or private data network 144 (such as the Internet). HLR 138 is coupled to MSC 130, SGSN 131, and GGSN 132. SS7 network 140 may connect mobile station 102 with other call parties or emergency call center 152, such as a call party 150 (e.g., a landline telephone or other mobile station). Is communicatively coupled to the ground line network 142. On the other hand, IP network 134 is connected to communicate with the Internet 144. The RADIUS server 136 is responsible for performing functions related to authentication, authorization, and accounting (AAA) of the packet data service, which may be referred to as an AAA server.

The BSC 128 and its tower station may be referred to as a (fixed) transceiver device. The transceiver device provides wireless network coverage for a particular coverage area, commonly referred to as a "cell." The transceiver device transmits a communication signal to and receives a communication signal from a mobile station in its cell via a tower station. The transceiver device performs functions such as modulation and possibly encoding and / or encryption of a signal to be transmitted to the mobile station, usually under the control of its controller, in accordance with certain communication protocols and parameters that are generally predetermined. The transceiver device likewise demodulates and optionally decodes and decodes any communication signal received from the mobile station 102 in its cell as needed. Communication protocols and parameters may vary between various networks. For example, one network may operate at a different frequency by employing a different modulation scheme than the other network.

The radio link shown in the communication system 100 of FIG. 1 represents one or more various channels, typically various radio frequency (RF) channels, and associated protocols used between the wireless network 104 and the mobile station 102. The RF channel is typically a limited resource that must be conserved due to the limitation of the overall bandwidth and the limited battery power of the mobile station 102. As skilled in the art, a wireless network in practical implementation may comprise millions of cells each supported by a tower station (ie, station sector), depending on the desired overall wide network coverage. Will know that you can. All suitable components may be connected by multiple switches and routers (not shown) controlled by multiple network controllers.

For all mobile stations 102 registered as network operators, temporary data (such as mobile station 102's current location) as well as permanent data (such as mobile station 102's profile) are stored in HLR 138. For voice calls to mobile station 102, query HLR 138 to determine the current location of mobile station 102. The Visitor Location Register (VLR) of the MSC 130 is responsible for a group of location areas and stores data of mobile stations currently in their area of responsibility. This includes some of the permanent mobile station data that has been sent from the HLR 138 to the VLR for faster access. However, the VLR of MSC 130 may also allocate and store local data, such as temporary identification information. Optionally, the VLR of MSC 130 may be enhanced (eg, for more efficient co-ordination of GPRS services and non-GPRS) services and functionality (eg, Paging for circuit switched calls, and combined GPRS and non-GPRS location updates, which may be performed more efficiently via SGSN 131).

SGSN 131 is at the same hierarchical level as MSC 130 and tracks the individual locations of mobile stations. SGSN 131 also performs security functions and access control. GGSN 132 provides interworking with external packet switched networks and is connected to SGSN (such as SGSN 131) via an IP-based GPRS backbone network. The SGSN 131 performs authentication and cipher setting procedures based on algorithms, keys, and criteria as in conventional GSM. In conventional operation, cell selection may be performed autonomously by the mobile station 102 or by a transceiver device instructing the mobile station 102 to select a particular cell. The mobile station 102 informs the wireless network 104 when to reselect another cell or group of cells, known as a routing area.

To access the GPRS service, the mobile station 102 first makes its presence known to the wireless network 104 by performing what is known as a GPRS " attach. &Quot; This operation can be used to establish a logical link between the mobile station 102 and the SGSN 131 and for the mobile station 102 to receive, for example, pages via SGSN, notification of incoming GPRS data, or SMS messages via GPRS. To be. In order to transmit and receive GPRS data, mobile station 102 helps to activate packet data addresses that it wishes to use. This operation causes the mobile station 102 to be known to the GGSN 132, after which interaction with the external data network can begin. User data may be transparently transmitted between the mobile station 102 and an external data network, for example using encapsulation and tunneling. The data packet has GPRS-specific protocol information and is transmitted between the mobile station 102 and the GGSN 132.

Wireless network 104 includes a location tracking component for tracking the location of mobile stations. The location information of the mobile station is obtained based on the Global Positioning System (GPS) technology using the GPS satellites of the conventional GPS system 154. In a typical configuration, the GPS system 154 includes 24 GPS satellites that orbit the earth every 12 hours. In the present disclosure, the mobile station 102 obtains GPS information based on the signal received from the GPS system 154 and measures and obtains its location using the location server 190 in the wireless network 104. The location server 190 is connected to the MSC 130 and / or the IP network 134 and may include what is called a Position Determination Entity (PDE). The PDE is coupled to the GPS receiver 192 to receive the signal and to decode the information sent by the GPS system 154. Mobile station 102 may receive GPS information from GPS system 154 and location server 190 using (or sharing at least a portion thereof) the same RF transceiver 108 used for conventional voice and data communications. have. Thus, a separate GPS receiver need not be used at mobile station 102 to receive GPS information from GPS system 154. Alternatively, a separate GPS receiver may be used for receiving GPS information from the GPS system 154 at the mobile station 102.

Among the position location techniques currently employed for enhanced 911 (E911), Assisted GPS (A-GPS) is one of the solutions. This GPS technology is described in standard specification documents such as TIA / EIA / IS-801-1. One positioning technique will be described. During the voice call associated with the mobile station 102, real-time GPS location information can be obtained and sent to the receiving entity. To obtain GPS location information, mobile station 102 operates with location system 190 in wireless network 104 as well as GPS system 154. Conventionally, mobile station 102 obtains GPS recognition assistance data and uses it to perform what is called a "GPS fix." For the GPS fix, the mobile station 102 tunes its GPS receiver to the GPS signal frequency of the GPS system 154. During the GPS fix, the mobile station 102 performs GPS pseudorange measurements based on the GPS signals received from the GPS system 154. Sometimes during a voice call, mobile station 102 sends GPS pseudorange data to location server 190, which location server 190 infers the location of mobile station 102 based on. Location server / PDE 190 may send this location information to a receiving entity (eg, a public safety response point (PSAP)) and / or to mobile station 102. When received by the mobile station, the mobile station 102 can send location information to the receiving entity (eg, PSAP).

2 is a detailed block diagram of a preferred mobile communication device or mobile station (MS) 202. Mobile station 202 is preferably a two-way communication device that includes the ability to communicate with other computer systems and has at least voice and advanced data communication capabilities. Depending on the functionality provided by the mobile station 202, this may be referred to as a data messaging device, a two-way pager, a cellular telephone with data messaging capability, a wireless Internet appliance, or a data communication device (with or without telephone capability). . Mobile station 202 may communicate with any one of a plurality of base station transceiver systems 200 within its geographic coverage area. The mobile station 202 selects or assists with which of the base station transceiver system 200 to communicate with, as described in more detail later with respect to FIGS. 3 and 4.

Mobile station 202 typically includes a receiver 212, a transmitter 214, and one or more (preferably embedded or internal) antenna elements 216 and 218, a local oscillator (LO) 213, and a digital signal processor (DSP) ( Communication subsystem 211 including related components, such as a processing module such as 220. The communication subsystem 211 is similar to the RF transceiver circuit 108 and antenna 110 shown in FIG. 1. As will be apparent to those skilled in the communications art, the specific design of the communications subsystem 211 depends on the communications network with which the mobile station 202 is intended to operate.

The mobile station 202 may transmit and receive communication signals over the network after the required network registration or activation procedure is completed. The signal received over the network by the antenna 216 is input to the receiver 212, which receives the signal amplification, frequency downconversion, filtering, channel selection, etc., and analog-digital in the example shown in FIG. Can perform general receiver functions such as (A / D) conversion. A / D conversion of the received signal allows more complex communication functions such as demodulation and decoding to be performed at DSP 220. In the same way, the signal to be transmitted is processed including, for example, modulation and encoding by the DSP 220. These DSP processed signals are input to transmitter 214 for digital-to-analog (D / A) conversion, frequency up-conversion, filtering, amplification, and transmission over a communication network via antenna 218. DSP 220 not only processes communication signals but also provides receiver and transmitter control. For example, the gain applied to the communication signal at the receiver 212 and the transmitter 214 may be adaptively controlled through an automatic gain control algorithm implemented in the DSP 220.

Network access is associated with a subscriber or a user of the mobile station 202, so that the mobile station 202 may use a memory module (such as a subscriber identity module ("SIM") card or a removable user identity module (R-UIM) to operate in the network). 262 requires that it be inserted or connected to the interface 264 of the mobile station 202. Alternatively, a portion of the nonvolatile memory or flash memory 224 is programmed as configuration data by the service provider so that the mobile station 202 can operate in the network. Since the mobile station 202 is a portable handheld battery powered device, it also includes a battery interface 254 for receiving one or more rechargeable batteries 256. This battery 256 provides electrical power to most, if not all, of the mobile stations 202, and the battery interface 254 provides mechanical and electrical connections thereto. The battery interface 254 is connected to a regulator (not shown in FIG. 2) that provides power to all of the circuitry.

Mobile station 202 includes a microprocessor 238 (which is one implementation of controller 106 of FIG. 1) that controls the overall operation of mobile station 202. This control includes the call or communication features of the present disclosure. Communication functions, including at least data and voice communications, are performed through the communication subsystem 211. Microprocessor 238 also includes display 222, flash memory 224, random access memory (RAM) 226, auxiliary input / output (I / O) subsystem 228, serial port 230, keyboard 232, speaker 234, microphone 236, short-range communications subsystem 240, and any other device subsystem collectively referred to collectively as 242. Some of the subsystems shown in FIG. 2 perform communication related functions, while other subsystems may provide " resident " or on-device functionality. In particular, some subsystems, such as, for example, the keyboard 232 and the display 222, both have communication-related functions such as entering text messages for transmission over a communication network and device-resident functions such as calculators or work lists. Can be used for Operating system software used by microprocessor 238 is preferably stored in permanent storage, such as flash memory 224, which may alternatively be read-only memory (ROM) or similar storage element (not shown). . Those skilled in the art will appreciate that the operating system, specific device applications, or portions thereof may be temporarily loaded into volatile storage, such as RAM 226.

Microprocessor 238, in addition to its operating system functions, preferably enables the execution of software applications on mobile station 202. A predetermined set of applications that control basic device operation, including at least data and voice communication applications (such as network reestablishment schemes), will typically be installed on mobile station 202 during its manufacture. Preferred applications that can be loaded into the mobile station 202 include personal information with the ability to organize and manage data items about the user, such as, but not limited to, email, calendar, voicemail, scheduling, and work items. It may be a manager (PIM) application. Of course, one or more memory storage spaces are available on mobile station 202 and SIM 256 to facilitate storage of PIM data items and other information.

The PIM application preferably has the ability to send and receive data items via a wireless network. In a preferred embodiment, the PIM data item is seamlessly integrated, synchronized and updated over the wireless network with the corresponding data item of the mobile station user associated with and / or stored in the host computer system, and thus the mobile station 202 for these items. Create a mirrored host computer on This is particularly advantageous when the host computer system is the office computer system of the mobile station user. Additional applications may also be loaded into the mobile station 202 via the network, auxiliary I / O subsystem 228, serial port 230, short range communication subsystem 240, or any other suitable subsystem 242. And may be installed by the user in RAM 226 or, preferably, non-volatile storage (not shown) for execution by microprocessor 238. This flexibility in application installation increases the functionality of the mobile station 202 and can provide improved on-device functionality, communication related functionality, or both. For example, secure communications applications may enable electronic commerce functionality and other such financial transactions to be performed using mobile station 202.

In the data communication mode, received signals, such as text messages, email messages, or web page downloads, will be processed by the communication subsystem 211 and entered into the microprocessor 238. The microprocessor 238 will preferably further process the signal for output to the display 222 or alternatively to the auxiliary I / O device 228. The user of the mobile station 202 may also configure a data item, such as an email message, using, for example, the keyboard 232 with the display 222 and possibly the auxiliary I / O device 228. The keyboard 232 is preferably a complete alphanumeric keyboard and / or phone number keypad. These configured items may be transmitted through the communication network via the communication subsystem 211.

For voice communication, the overall operation of the mobile station 202 is substantially similar except that the received signal will be output to the speaker 234 and the signal for transmission will be generated by the microphone 236. . Alternative voice or audio I / O subsystems, such as voice message recording subsystems, may also be implemented on the mobile station 202. While a voice or audio signal output is preferably achieved primarily through the speaker 234, the display 222 may also be used to provide an indication of the caller's identity, the duration of the voice call, or other voice call related information, as some examples. Can be.

Serial port 230 in FIG. 2 is usually implemented in a PDA type communication device for the preferred component even though synchronization with the user's desktop computer is optional. The serial port 230 allows a user to set preferences via an external device or software application and extends the performance of the mobile station 202 by providing information or software downloads to the mobile station 202 otherwise via a wireless communication network. . Alternative download paths can be used, for example, to load cryptographic keys into mobile station 202 via a direct and thus reliable and reliable connection, thereby providing secure device communication.

The short-range communication subsystem 240 of FIG. 2 is an additional optional component that provides communication between the mobile station 202 and other systems or devices that do not necessarily need to be similar devices. For example, subsystem 240 may include an infrared device and associated circuits and components, or a Bluetooth ^™ communication module, to provide communication with similarly capable systems and devices. Bluetooth ^TM is a registered trademark of the Bluetooth SIG.

Referring again to FIG. 1, the mobile station 102 may operate to provide GPS location information to the requesting entity (eg, caller 150 or emergency center 152) for identification of the location of the mobile station 102. Can be. To do this, one of several different techniques may be used in the wireless network 104. In one case, the mobile station 102 causes GPS navigational-type data to be requested and received regularly and periodically and stored in memory during an idle mode of its operation or during a voice call. The GPS searchable data may be "raw" search data, or alternatively data derived from raw search data, which may include GPS ephemeris parameter data and / or GPS almanac parameter data. Thus, it may be the term "searchable" data. The GPS searchable data may be received from the location server 190 via the wireless network or alternatively directly from the GPS system 154 or both. The location server / PDE 190 uses a triangulation / trilateration procedure to obtain the coarse position of the mobile station 102 to derive GPS aware assistance information for the mobile station 102. Note that. Alternatively, the serving base station (s) may be available from broadcast messages from base station (s) as an approximate location for location server / PDE 190 to derive GPS aware assistance information for mobile station 102. The longitude and latitude of can be used.

The mobile station 102 then performs a GPS procedure to obtain GPS location information. In particular, mobile station 102 derives GPS aware assistance data and / or sensitivity assistance data based on the last-received previously received and stored GPS stored data. The GPS aware assistance data may include data identifying suitable ambient GPS satellites, Doppler frequency, and time delay window information. The sensitivity assistance data includes the expected bit content of the GPS search data to be modulated for the GPS signal when a GPS fix is about to be performed. Next, the mobile station 102 causes the GPS fix to be performed using the GPS system 154. During the GPS fix, the wireless receiver of the GPS / mobile station 102 is tuned to the GPS frequency to receive GPS signals from the GPS system 154. The mobile station 102 obtains GPS measurement data associated with the mobile station 102 based on the GPS signal received from the GPS system 154. The GPS measurement data may be or include GPS pseudorange data.

During the voice call, for example, a traffic channel is maintained between the mobile station 102 and the wireless network 104 such that voice communication can occur between the end user of the mobile station 102 and the call recipient 150. Call recipient 150 is associated with a telephone number that may have been selected by the end user of mobile station 102. Call recipient 150 may be any ordinary call party (eg, end user's family, friend, or colleague), or alternatively an emergency call center or public safety response point (or PSAP) associated with "911". Other emergency numbers, such as). Sometimes during a voice call, mobile station 102 allows measurements from base station signals of wireless network 104 to be made. These measurements are not intended to provide an approximate location of the mobile station 102, but rather to be used with pseudoranges to improve location accuracy if the available GPS pseudoranges alone are not sufficient to accurately determine the location. .

The mobile station 102 then sends a request for measurement data and location determination to the location server or PDE 190. The transmission of GPS measurement data may be in response to a request from the location server 190 or other requesting entity or by the mobile station 102 autonomously (eg, by dialed telephone number such as an emergency number such as “911”). Triggered). The location server / PDE 190 then calculates the location of the mobile station 102 based on the triangulation / trilateration technique using the data. The location information of the mobile station 102 may be or include latitude, longitude, and altitude information. The location server 190 may send the resulting location information of the mobile station 102 directly to the call recipient 150 with or without his request. Alternatively, location server 190 may send location information to mobile station 102, which may then send to call recipient 150. In an alternative approach, location server / PDE 190 need not be used as described above where the mobile station 102 is adapted to calculate location information on its own in the MS only approach.

3 is a flow diagram of an example method for use by a mobile communication device in processing an emergency communication. The method may be performed by a mobile device with appropriate system components as described, using one or more processors, memory, user interface, and its wireless transceiver (see, eg, FIGS. 1 and 2). The method is further implemented with a computer program product comprising a computer readable medium (eg, a memory or a computer disk) storing computer instructions executable by one or more processors (eg, a microprocessor) of a mobile device. Can be.

In general, as will be explained, the method of FIG. 3 relates to an emergency call with a Public Safety Response Point (PSAP) entity established by a mobile device over a wireless network. If the emergency call is disconnected, the mobile device monitors to receive an incoming call message for the subsequent emergency call from the public safety response point entity. In response to receiving such an incoming call message, the mobile device refrains from generating an audible alert and automatically responds to subsequent emergency calls from public safety response point entities without detecting any manual response signals through its user interface. Answer Thus, appropriate information that was not available from the first emergency call can be obtained in the subsequent emergency call. This information may include, for example, GPS based location information identifying the geographic location of the mobile device. In one particular approach, the mobile device automatically answers the call if the incoming call message is received within a predetermined period of time following the disconnection and the data indication of the incoming call message indicates that the message is for a subsequent emergency call or an automatic response. . In contrast, if an incoming call message is received over a predetermined period of time following a disconnection, or if the data display does not indicate that the incoming call message is for a subsequent emergency call or an automatic response, the mobile device may receive an incoming call message. Refrain from automatically answering the associated call.

Beginning at start block 300 of FIG. 3, the mobile device monitors its user interface for user input signals since the end user of the mobile device may be attempting to place a voice call over the wireless communication network (FIG. Step 302). If the processor detects a call request for the voice call via the user interface (step 304 of FIG. 3), the processor identifies whether the call request is for an emergency call (step 306 of FIG. 3). To identify whether the call request is for an emergency call, the processor may determine a predetermined code (eg, 911, etc.) entered or selected by the end user for the call, the predetermined user input selection corresponding to the emergency call ( For example, user selection of an “emergency call” button or icon provided by the mobile device, or sensor output signal associated with the mobile device (eg, a “man down” signal from the mobile device). Can be identified. If the call request is for a non-emergency call at step 306, the processor performs normal or conventional call setup procedures and processing for the non-emergency call (step 308 in FIG. 3).

If the call request is for an emergency call as identified in step 306, the processor causes the emergency call to be initiated via the wireless transceiver to the PSAP entity (step 318 in FIG. 3). Upon call setup, an automatic caller identification (ANI) or caller identification (call ID) associated with the mobile device is passed to the PSAP entity (step 320 in FIG. 3). The ANI information may be or include a number corresponding to a mobile identifier that uniquely identifies the mobile device. The PSAP entity receives the ANI information and responds to the incoming call, so that an emergency call is established and maintained between the mobile device and the PSAP entity via the wireless network (step 322 of FIG. 3). During the call, the mobile device monitors to receive any location information request (eg, GPS location) from the PSAP entity (step 324 of FIG. 3). When a location information request is received as identified in step 324, the processor causes location information corresponding to the geographic location of the mobile device to be sent for use by the PSAP entity (step 326 of FIG. 3). This may be done at least in part using the techniques described above with respect to FIG. 1. Alternatively, the transmission of information may be performed autonomously by the mobile station 102 (ie, step 326 is performed after step 322 without receiving any request in step 324). Thus, the PSAP entity can obtain the geographical location of the mobile device.

If the conditions are sufficient, all necessary information is properly conveyed during the emergency call between the mobile device and the PSAP entity so that the emergency can be handled properly. Examples of suitable information include the phone number of the mobile device (ANI or caller ID), the geographic location of the mobile device (GPS-based geographic location), the address of the location of the mobile device, the name of the mobile device's end user and other related parties. This includes information useful to end users in handling emergency situations. However, an emergency call may be disconnected too quickly (step 328 of FIG. 3), so that all the appropriate information may not be delivered properly. Emergency calls can be disconnected in a number of different ways. For example, the mobile device may be in coverage with the wireless network during an emergency call, but may then be relocated or moved out of coverage with the wireless network so that the call is disconnected. As another example, an emergency call may be inadvertently or deliberately terminated by an end user or a third party.

As described herein, using the techniques of this disclosure, the PSAP entity can call back to the mobile device with a subsequent emergency call. Subsequent emergency calls from the PSAP entity may be silent and / or answering voice calls.

When the processor detects that the emergency call is disconnected in step 328 of FIG. 3, the processor may set and run a timer (step 330 of FIG. 3). The timer set at step 330 may be used by the mobile device to define a period from when the connection was lost, in which the PSAP entity may call back to the mobile device. The period may be anything between 2-10 minutes, for example, but other periods may be suitable.

The processor will then go back to monitoring for user input signals in the user interface (step 302) and for incoming messages via the wireless transceiver (step 310). In a preferred technique, with respect to step 302, the processor prohibits any call attempted by the end user over the wireless network from the mobile device during the period defined by the timer (possibly excluding any subsequent emergency call by the end user). ). After expiration of the timer, the process will allow a call attempted by the end user from the mobile device.

While monitoring for a message via the wireless transceiver at step 310 after being disconnected, an incoming call message directed to the mobile device for a voice call may be received (step 312 in FIG. 3). The incoming call message may be for a subsequent emergency call from the PSAP entity after being disconnected. The PSAP entity makes the subsequent emergency call using the ANI or caller ID information associated with the mobile device. If an incoming call message has not been received in step 312, the processor continues to monitor for user input signals and wireless messages in steps 302 and 310.

However, if an incoming call message destined for the mobile device is received in step 312, the processor identifies whether the incoming call message is for a call requiring silent and / or automatic response by the mobile device (step in FIG. 3). 314). In a first embodiment associated with step 314, if an incoming call message for a call from a PSAP entity is received within a time period defined by the timer set in step 330, the processor sends any passive response signal through the user interface of the mobile device. Automatically answer the incoming call without detecting (step 332 of FIG. 3). In addition, the processor refrains from generating any audible alerts to announce the call. However, if an incoming call message is received beyond the time period defined by the timer, the processor causes a normal or standard call procedure to be performed for the incoming call (step 316 of FIG. 3). For standard call procedures, the processor typically requires an audible alert to be generated at the mobile device to notify the end user of the incoming call and requires the processor to detect a manual response signal through the user interface that will allow the processor to answer the call (eg For example, detection of the operation of keys or buttons, or rotation or sliding of the housing of the mobile device).

In a second embodiment, relating to step 314, if the incoming call message includes a data indication (i.e., silent and / or auto-answer) indicating that the call is an emergency call followed, the processor may, in step 332, via the user interface of the mobile device. Automatically answer incoming calls without detecting any passive response signals. In addition, the processor refrains from generating any audible alerts to announce the call. See later description with reference to FIG. 5 below. However, if the data display does not indicate that the call is for a subsequent emergency call or for silent silent response, then the processor allows the normal or standard call procedure to be performed for the incoming call in step 316. Again, in standard call procedures, the processor typically causes an audible alert to be generated at the mobile device to inform the end user of the incoming call and requires the processor to detect a manual response signal through the user interface to answer the call.

In a third embodiment associated with step 314, an incoming call message for a call from a PSAP entity is received within a time period defined by the timer set in step 330, and a data indication (i.e., indicating that the incoming call message is an emergency call followed by a call). , Silent and / or auto-answer), the processor allows the mobile device to automatically answer the incoming call without detecting any manual response signal via the mobile device's user interface in step 332. In addition, the processor refrains from generating any audible alerts to announce the call. However, if an incoming call message is received beyond the time period defined by the timer, or if the data display does not indicate that the call is for an emergency call followed by a silent answer or silent silence response, then the processor in step 316 receives a normal or Ensure that standard call procedures are performed. Thus, in this third embodiment, the means for initiating the auto / silent response depends on both the duration and the data presentation variable.

Also in a fourth embodiment associated with step 314, an incoming call message for a call from a PSAP entity is received within a period defined by the timer set in step 330, or a data indication indicating that the incoming call message is an emergency call followed by a call ( I.e., silent and / or auto-answer), the processor allows the processor to automatically answer the incoming call without detecting any passive response signal via the mobile device's user interface in step 332. In addition, the processor refrains from generating any audible alerts to announce the call. However, if an incoming call message is received over a period of time defined by a timer, and the data display does not indicate that the call is for a subsequent emergency call or for a silent automatic response, then the processor in step 316 receives a normal or Ensure that standard call procedures are performed. Thus, in this fourth embodiment, the duration and data presentation variables are independent and advantageously provide separate means for initiating an automatic / silent response. After step 332, if the mobile device automatically answers the subsequent emergency call, the mobile device will maintain the subsequent emergency call as indicated in step 322. The steps may be repeated as needed as provided in the flowchart. The subsequent emergency call ensures that all necessary information can be properly delivered during the emergency call between the mobile device and the PSAP entity so that the emergency situation can be properly handled.

In one particular embodiment, the disconnection of the emergency call at step 328 is caused by the mobile device undergoing an out-of-coverage condition with the wireless network. After a condition out of coverage with the wireless network causing the emergency call to be disconnected, the processor may identify that a condition has been obtained that is in-coverage with the wireless network. In response, the processor causes the message to be sent to the wireless network. The wireless network may receive this message and identify that the mobile device is available again, and this message or the corresponding message may be forwarded to the PSAP entity to indicate that it is the same. Thereafter, in response to this message, the PSAP entity causes the subsequent emergency call to be placed on the mobile device.

5 illustrates an incoming call that may have a data indication 506 in one or more data fields to indicate whether an incoming call message 502 to a mobile device is for a subsequent emergency call (ie, silent / automatic response). Example diagram of message 502. In this embodiment, the incoming call message 502 is an air interface message broadcast over the wireless network via a control or paging channel. Depending on the environment or context, the incoming call message 502 may be or referred to as a page message, call control message, or call setup message. If data representation 506 is a bit representation, for example, bit '1' may indicate that it is an emergency call followed by an incoming call (ie, silent and / or answering call), and bit '0' is an emergency followed by an incoming call. It may indicate that it is not a call (ie not a silent and / or answering call). Incoming call message 506 also includes other suitable information, such as mobile identifier 504 that uniquely identifies the mobile device to which the incoming call is directed. While monitoring for the broadcasted message, the processor of the mobile device operates to compare the mobile identifier 504 with its own stored mobile identifier, and if there is a match, the processor operates as described with respect to step 314 of FIG. Do this.

Note that the same data indication 506 for an automated response can also instruct the mobile device to silently answer the incoming call without generating an audible alert to notify the end user of the call. In an alternative embodiment, the data indication 506 is used to indicate that the incoming call should be automatically answered by the mobile device, but other incoming than the data indication 506 to indicate whether the incoming call should be answered silently or not. A separate data representation in the call message is used.

Referring previously to FIG. 9, a relevant portion of a call flow diagram 900 is shown that illustrates an immediate connect feature that may be used in the call procedure of the present disclosure for a GSM / GPRS network. Call flow diagram 900 is based on GSM call control layer processing for a mobile device as described in the GSM specification document. Note that MNCC stands for Mobile Network Call Control and MMCC stands for Mobility Management Call Control. Such processing may occur with respect to steps 312, 314, 316, and 320 of FIG. 3. Starting at process 904 (U9 MT CALL CONFIRMED), if a normal, non-urgent call is received by the mobile device, the mobile device goes to process 906 (DR (ALERT)) after MNCC_ALERT_REQ and then to process 908 (U7 CALL RECEIVED). Then, after MNCC_SETUP_RESP, process 910 (DR (CONN)) is followed by process 912 (U8 CONNECT REQUEST). However, for subsequent emergency calls (or silent / automatic calls), the process flow from process 904 (MT CALL CONFIRMED) proceeds directly to process 902 (DR (CONN)) after MNCC_SETUP_RESP, and then to process 912 (U8 CONNECT REQUEST). Leads to). As can be seen clearly, the mobile device performs MNCC_SETUP_RESP and process 902 without performing processes 906, 908 and 910 for subsequent emergency calls. This ends in the description with respect to FIG. 9.

Preferably, the automatic and / or silent response to the call to the mobile device is performed despite other programmable data indications provided to the mobile device and available for use by the mobile device. To illustrate, FIG. 6 is an exemplary diagram of a memory 602 of a mobile device that may have programmable data representations 604 and 606 stored therein. Programmable data indication 604 is for setting an audible alert response mode or silent response mode for an incoming call to a mobile device, and programmable data indication 606 is for a manual answer mode for an incoming call to a mobile device. To set the answering machine mode. Programmable data displays 604 and 606 are programmable in that they can change these modes as desired by the end user. The processor may control and / or select a mode of the mobile device based on the user input signal received via the user input device of the user interface. The user input device may be or include, for example, one or more buttons or keys of the mobile device. In response to the operation of the button or key by the end user, the processor may, for example, provide selection or toggling between modes. Preferably, the processor causes a graphical user interface (GUI) to be provided or rendered on the visual display, which includes a GUI button or menu list for selection of the end user between the various modes.

Again, the programmable data indication 606 of FIG. 6 is for setting an audible alert response mode or silent response mode for an incoming call of the mobile device. If the programmable data representation is a bit representation, for example, bit '0' may indicate that an audible alert response mode should be used for an incoming call, and bit '1' may indicate that the silent response mode is not supported for an incoming call. May be used. Note that the opposite bit definitions or other bit configurations may be used as an alternative. Alternatively, bit '0' may indicate that device configuration should be used for an incoming call, and bit '1' may indicate that remote silent response control should be used for an incoming call. Typically, when the processor receives an incoming call message for a normal incoming voice call to a mobile device and the audible alert response mode is enabled, the processor listens through the user interface to notify the end user of the incoming call. Allow alerts to be generated. On the other hand, if the processor receives an incoming call message for a normal incoming voice call to the mobile device and the silent response mode is enabled, the processor may generate any audible alert through the user interface to notify the end user of the incoming call. Do not let it be created. However, even if the programmable data indication 606 is set to enable an audible alert response mode, the incoming call message for an incoming voice call has a data indication for a silent (auto) response (eg, FIG. 5). The processor still refrains from generating any audible alerts through the user interface to notify end users of incoming calls. See Table 1 below for one exemplary truth table logic for this functionality.

Display of programmable data set by end user Display data from wireless messages Resulting mode Audible alarm No remote silent response control Audible alarm Audible alarm Enable Remote Silent Response Silent response Silent alarm No remote silent response control Silent response Silent alarm Enable Remote Silent Response Silent response

Table 1. Truth table logic for alarm mode for mobile devices

On the other hand, the programmable data indication 604 of FIG. 6 is for setting the manual response mode or the automatic response mode of the mobile device. If the programmable data representation is a bit representation, for example, bit '0' may indicate that a manual answer mode should be used for an incoming call, and bit '1' indicates that an auto answer mode is used for an incoming call. Can be indicated. Note that the opposite bit definitions or other bit configurations may be used as an alternative. Alternatively, bit '0' may indicate that device settings should be used for incoming calls, and bit '1' may indicate that remote answering control should be used for incoming calls. Typically, if the processor receives an incoming call message for a normal incoming voice call to the mobile device and the passive answer mode is enabled, the processor will only incoming when it detects a passive answer signal by the end user through the user interface. Answer the voice call. On the other hand, if the processor receives an incoming call message for a normal incoming voice call to the mobile device and the auto answer mode is enabled, the processor does not detect any manual answer signal by the end user through the user interface and detects the incoming call. Automatically answer voice calls. However, even if the programmable data indication 604 is set to enable the manual answer mode, the incoming call message for an incoming voice call has a data indication for an automatic (silent) response (see, eg, FIG. 5). In turn, the processor still allows the user interface to automatically answer incoming voice calls without detecting any manual response signals by the end user. See Table 2 below for one exemplary truth table logic for this functionality.

Display of programmable data set by end user Display data from wireless messages Resulting mode Manual response No remote answering machine control Manual response Manual response Remote Auto Answer Enable Auto response Auto response No remote answering machine control Auto response Auto response Remote Auto Answer Enable Auto response

Table 2. Truth table logic for response mode for mobile devices

In another scenario, the programmable data indication 606 of FIG. 6 is again to set the audible alert response mode or silent response mode for incoming calls of the mobile device. However, even if the programmable data indication 606 is set to enable an audible alert response mode, the incoming call message for an incoming voice call has a data indication for both silent and automatic response (eg, FIG. 5), the processor refrains from generating any audible alerts through the user interface to notify end users of incoming calls and allows them to automatically answer the call (i.e., device configuration is ignored). However, when an incoming call message for an incoming voice call has a data indication set to not auto / silent response, the device setting is used and the data indication in the wireless message is not given priority. See Table 3 below for one exemplary truth table logic for this functionality.

Display of programmable data set by end user Display data from wireless messages Resulting mode Audible alarm No remote auto / silent response control Manual response with audible alarm set by end user Audible alarm Remote Auto / Silent Response Enable Auto / silent response Silent alarm No remote auto / silent response control Manual response with silent alarm set by end user Silent alarm Remote Auto / Silent Response Enable Auto / silent response

Table 3. Truth table logic for response mode of mobile devices

Reference will now be made to FIG. 4, which shows a flowchart of a general method for use in a wireless communication network for handling emergency communications for a mobile communication device, which may complement the method described with respect to FIG. 3. The method may be performed in a wireless communications network in connection with appropriate system components as described, using one or more network processors, memory, and transceivers (see, eg, FIG. 1). At least part of the method is further implemented with a computer program product comprising a computer readable medium (eg, a memory or a computer disk) having stored thereon computer instructions executable by one or more processors (eg, a microprocessor). Can be.

Beginning at start block 400 of FIG. 4, the wireless network is adapted to facilitate establishment of an emergency call between a mobile communication device operating in a wireless network and a public safety response point (PSAP) entity (step 402 of FIG. 4). During an emergency call, the wireless network may identify a call termination message or failure condition (eg, an out of coverage condition) causing the emergency call to be disconnected (step 404 of FIG. 4). Sometimes after disconnecting, the wireless network receives a message for the subsequent emergency call with the mobile device initiated by the PSAP entity (step 406 of FIG. 4). The PSAP entity initiates a subsequent emergency call to the mobile device using the ANI or caller ID information previously received in the first emergency call. In response to receiving the message, the wireless network generates an incoming call message directed to the mobile device for transmission over the wireless network. When generating an incoming call message, the wireless network sets up a data indication in one or more data fields of the incoming call message (step 408 of FIG. 4). The data indication is for use in instructing the mobile device to automatically answer the call without detecting a manual response signal through the user interface of the mobile device. The data indication (or other indication) may also be for use in instructing the mobile device to refrain from generating an audible alert to announce a subsequent emergency call. The wireless network then causes this incoming call message for subsequent emergency calls to be broadcast by the mobile device to be broadcast over the wireless network (step 410 of FIG. 4). The mobile device answers the emergency call following in an automatic and / or silent manner.

With respect to other related technologies of the present disclosure, note that the emergency call described herein may be disconnected in response to intentional or accidental operation on the mobile device by someone, whether an end user or a third party. When this happens, it may be impossible or difficult for communication between the PSAP entity and the mobile device to occur on any subsequent emergency call if no special techniques are used. For example, the mobile device may be away from, or out of reach of, the end user. As another example, the configuration of the mobile device may not readily allow this subsequent communication.

To further illustrate this latter problem, FIGS. 8A and 8B show side views of one configuration of a mobile device having a housing 802 that provides an open state (FIG. 8A) and a closed state (FIG. 8B). In the embodiment of FIGS. 8A and 8B, the housing 802 is a first (top) housing portion 804 and a second (bottom) housing connected by hinge assembly 808 to provide an open and closed state. Has a portion 806. Hinge assembly 808 may alternatively be a slide assembly or pivot point assembly, for example, to provide an open and closed state. In the embodiment of FIGS. 8A and 8B, the first housing portion 804 carries the display 112 and the speaker 234, and the second housing portion 806 carries the keyboard 114 and the microphone 236. do. The open state in FIG. 8A exposes display 112, keyboard 114, speaker 234, and microphone 236 for use, while the closed state in FIG. 8B shows display 112, keyboard 114. , Covers speaker 234, and microphone 236 and / or is inactive. As can be clearly seen in FIG. 8B, when the mobile device is in the closed state after disconnection of the emergency call, subsequent communication may be impossible or difficult to occur with any subsequent emergency call unless special technology is used.

To solve this problem, one type of mobile device that can be used in the present technology can be configured to selectively provide a handset talk mode and a speakerphone talk pod for a voice call. Speakerphone transducers (eg, speakerphone transducer 810 of FIGS. 8A and 8B) are provided in addition to conventional handset speakers and microphones. As illustrated in FIGS. 8A and 8B, this speakerphone transducer 810 may be provided on the outside or opposite side of the housing that otherwise provides the handset speaker 234 and the microphone 236.

To further illustrate, FIG. 7 is a block diagram illustrating functionality related to talk mode for a voice call of a mobile device. The talk mode of the mobile device includes handset talk mode 702 and speakerphone or “hands-free” talk mode 704. A switching circuit 706 may be connected to and controlled by the processor of the mobile device to switch between the handset talk mode 702 and the speakerphone talk mode 704.

In the case of the handset talk mode 702, the processor enables the handset speaker and the microphone (including its associated circuit) of the mobile device through the switching circuit 706 for the end user to hear and speak respectively during the voice call. When enabled, the handset speaker / microphone and associated circuitry provide a limited dedicated geographic distance for the transport of the audio signal of the voice call. To effectively communicate in handset talk mode 702 during a voice call, the end user grabs a mobile device (eg, a portable handheld phone device), places the handset speaker close to the end user's ear, and the handset microphone moves into the end user's mouth. Position the mobile devices side by side next to the end user's head so that they are in the vicinity. Otherwise, the audio signal will not have sufficient strength to be delivered to the end user and other parties in the call.

For speakerphone talk mode 704, the processor enables an alternative transducer (speaker / microphone) (including its associated circuit) of the mobile device via switching circuit 706 for the end user to hear and speak during the voice call. do. Note that speakerphone talk mode 704 may alternatively be called or “hands free” talk mode. When enabled, speakerphone transducers and associated circuitry provide a wider geographical distance for the transport of audio signals of voice calls. To communicate in speakerphone talk mode 704 during a voice call, the end user positions the mobile device so that it is spaced apart from the end user's hand or at a suitable distance from a suitable surface (eg, within or between 0.5-1.5 meters). . In speakerphone talk mode 704, the audio signal of the voice call has sufficient strength to be sufficiently communicated to the end user and other parties of the call despite the spacing between the mobile device and the end user.

The processor may control and / or select the torque mode of the mobile device based on input 710 from the user input device of the user interface. The user input device may be or include, for example, one or more buttons or keys of the mobile device. In response to the operation of the button or key by the end user, the processor may provide a selection or toggle between handset talk mode 702 and speakerphone talk mode 704 during the voice call. Thus, the processor may detect a passive speakerphone activation signal through a user interface from an end user to activate speakerphone talk mode 704. Preferably, the processor causes a graphical user interface (GUI) to be provided or presented on the visual display, which provides a GUI button or menu list for the end user's choice between handset talk mode 702 and speakerphone talk mode 704. Include.

The processor may additionally or alternatively control the talk mode of the mobile device based on input 712 corresponding to a data indication in one or more data fields of an incoming call message from the PSAP entity (see, eg, FIG. 5). ). If the data indication is a bit indication, for example, bit '0' may indicate that handset talk mode 702 should be used, and bit '1' indicates that speakerphone talk mode 704 should be used. can do. Note that the opposite bit definitions or other bit configurations may be used as an alternative. Alternatively, bit '0' may indicate that the device setting should be used for selection of mode 702 or 704, and bit '1' should be used for speakerphone talk mode 704 for remote speakerphone enable. (I.e., ignore device settings). In addition to or alternatively to this data indication to be provided in the incoming call message, this data indication may be provided in any suitable message delivered from the PSAP entity to the mobile device during the call (ie, while the call is in progress, a traffic channel may be established). Receive data indications in messages sent after the

Logic 708 may be provided if both input 710 (ie, user input selection) and input 712 (ie, data indication in a wireless message) should be used for selection of the talk mode of the mobile device. Logic 708 may be provided at the mobile device as hardware or as software to control the processor. As shown in the example of FIG. 7, logic 708 may be an OR gate or a functional equivalent thereof. Advantageously, logic 708 may be adapted to operate according to the truth table provided in Table 4 below:

User input signal from user input device Display data from wireless messages Resulting torque mode receiver No remote speakerphone control receiver receiver Remote Speakerphone Enable Speakerphone Speakerphone No remote speakerphone control Speakerphone Speakerphone Remote Speakerphone Enable Speakerphone

Table 4. Truth Table Logic for Torque Mode

Although examples have been provided, any suitable type of logic may be used to select the torque mode of the mobile device.

Thus, even if the mobile device is dropped from, dropped out of, or out of reach during an emergency call, subsequent communications between the PSAP entity and the mobile device may still be valid using speakerphone talk mode control (eg, PSAP). The entity can at least hear the end user, or at least instruct or otherwise communicate with the end user). Subsequent communication is also possible when the mobile device configuration does not allow it (see for example the description with respect to FIGS. 8A and 8B).

In an alternative embodiment, the selection and remote control in the mobile device in the auto answer and talk mode using the data indication in the wireless message is independent of any emergency call being made by the end user or arbitrarily disconnected from it. , PSAP or other third party. The call to the mobile device made by the entity may be only a silent or confidential, secret call (speakerphone talk mode is enabled or not enabled as described above), which means that any disconnected mobile terminal initiation (mobile- initiated) need not be done in response to an emergency call. For example, a silent or secret call can be made from the entity to the mobile device in response to identifying that the end user of the mobile device is involved in illegal or fraudulent behavior. Since there is no disconnection of the mobile terminal initiating call or associated call connection in this embodiment, no timer is used in the mobile device during this period of time after the connection is disconnected. Otherwise, the techniques used may be the same or similar to those techniques described above. As an alternative, such a silent or secret call (speakerphone talk mode is enabled or disabled as described above) may be received from the entity in response to the receipt of an entity of a signal or message (not urgent or urgent) initiated from the mobile device. It may be made of a mobile device. Preferably, the message is an urgent message, which may be a short text message (eg an SMS message) or an e-mail (email) message received by the end user via the mobile device's user interface and sent over the wireless network, for example. to be. Such a message may be detected as an emergency or non-urgent message using the same or similar technique as described above with respect to step 306 of FIG. 3 (ie, detecting a predetermined code or predetermined user input selection). In this particular alternative embodiment, a timer for the period following the initial mobile terminal initiation signal or message may be used in the mobile device in the same or similar manner as the period after which the emergency call is disconnected.

Thus, in an alternative method for use by a mobile communication device to process an incoming call via a wireless communication network, the steps of the method may include: monitoring an incoming call message for an incoming call via the wireless communication network; Receive a data indication in one or more data fields of an incoming call message; If the data indication indicates that the incoming call message is for a silent silent response: refrain from generating an audible alert at the mobile communication device to announce the incoming call; Allow the mobile communication device to automatically answer the incoming call without detecting a passive response signal through the user interface of the mobile communication device; Or alternatively, if the data indication does not indicate that the incoming call message is for a silent answering machine, refrain from allowing the mobile communication device to automatically answer the incoming call without detecting a manual answer signal; In response to detecting a passive response signal through the user interface, responding to an incoming call.

In accordance with the main teachings of the present disclosure, methods and apparatus have been described for use in handling disconnected emergency calls and other communications associated with mobile communication devices. In one exemplary embodiment, an emergency call with a public safety response point entity is established by the mobile communication device via a wireless communication network. If the emergency call is disconnected, the mobile device monitors to receive an incoming call message for the subsequent emergency call from the public safety response point entity. In response to receiving such an incoming call message, the mobile device refrains from generating an audible alert and automatically responds to subsequent emergency calls from public safety response point entities without detecting any manual response signals through its user interface. Answer In one particular approach, the mobile device automatically answers the call if the incoming call message is received within a predetermined period of time following the disconnection and the data indication of the incoming call message indicates that the message is for a subsequent emergency call or an automatic response. . In contrast, if an incoming call message is received over a predetermined period of time following a disconnection, or if the data display does not indicate that the incoming call message is for a subsequent emergency call or an automatic response, the mobile device may receive an incoming call message. Refrain from automatically answering the associated call.

Another example method for use by a mobile communication device adapted to communicate over a wireless communication network includes receiving over the wireless communication network a message having a data indication in one or more data fields; Enable the speakerphone talk mode of the mobile communication device for the voice call when the data indication from the message indicates that the speakerphone talk mode should be used; Alternatively, enabling the handset talk mode of the mobile communication device for the voice call when the data indication from the message indicates that the handset talk mode should be used. The method may further comprise causing the mobile communication device to automatically answer the voice call from the third party entity without detecting a passive response signal through the user interface of the mobile communication device.

While the preferred embodiments of the invention have been illustrated and described, it should be understood that the invention is not so limited. Numerous modifications, changes, variations, substitutions and equivalents may occur to those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (21)

A method in a mobile communication device configured to operate using a wireless communication network, the method comprising:
Establish an emergency call with a public safety answering point entity;
Monitor receipt of the incoming call message indicating whether an incoming call message is for emergency callback;
If the data indications in the data fields indicate that the incoming call message is for the emergency callback, causing the emergency callback to be automatically answered by the mobile communication device.
The method in a mobile communication device comprising a. The method of claim 1,
And the incoming call message has a data indication indicating an auto-answer. The method of claim 1,
The emergency callback is automatically answered without detection of a manual response signal through the user interface of the mobile communication device. The method of claim 1,
Refraining from generating an audible alert at the mobile communication device for notification of the emergency callback if the data indications in the data fields indicate that the incoming call message is for the emergency callback. A method in a mobile communication device. The method of claim 1,
Causing a mobile identifier to identify the mobile communication device to be transmitted over the wireless communication network for an emergency call for reception by the public safety response point entity,
Receiving the incoming call message comprises receiving an incoming call message addressed to the mobile identifier. The method of claim 1,
Identify an in-coverage state for the wireless communication network after an out-of-coverage state for the wireless communication network causing the emergency call to be disconnected;
Cause a message to be sent to the wireless communications network based on identifying a condition within the coverage;
Monitoring receipt of the incoming call message for the emergency callback after the message has been sent to the wireless communication network.
Further comprising a method in a mobile communication device. The method of claim 1, wherein the wireless communications network is operating in accordance with the Global Systems for Mobile communications (GSM) standard.
If the data indications in the data fields indicate that the incoming call message is for the emergency callback, refrain from performing a DR (ALERT) process and a U7 CALL RECEIVED process in the GSM standard when responding to the emergency callback. And at the mobile communication device. The method of claim 1,
Refraining from automatically responding to the incoming call message if the data indications in the data fields indicate that the incoming call message is not for the emergency callback or automatic response. . The device of claim 1, wherein the user interface of the mobile communication device comprises a plurality of keys, a speaker, and a microphone,
Causing the emergency callback to be automatically answered by the mobile communication device enables the speaker to generate audible signals from the public safety response point entity and the microphone to receive audible signals at the mobile communication device. Enabling operations for the mobile communication device. The method of claim 1 wherein the mobile communication device has a handset talk mode and a speakerphone talk mode, the method comprising:
If the data indications in the data fields indicate that the incoming call message is for the emergency callback, further enabling the speakerphone talk mode of the mobile communication device without detecting a passive speakerphone activation signal through a user interface. And a method in a mobile communication device. The computer program product of claim 1, wherein the method is implemented in a computer program product comprising a computer readable medium and computer instructions stored on the computer readable medium, the computer instructions being executed by one or more processors to perform the method. Possible method in a mobile communication device. A mobile communication device,
One or more processors;
A wireless transceiver coupled to the one or more processors and configured for communication via a wireless communication network; And
A user interface coupled to the one or more processors
Lt; / RTI >
The one or more processors,
Establish an emergency call with a public safety answering point entity via the wireless transceiver;
Monitor reception of the incoming call message indicating whether an incoming call message is for emergency callback via the wireless transceiver;
And if data indications in data fields indicate that the incoming call message is for the emergency callback, cause the emergency callback to be automatically answered. The method of claim 12,
And the incoming call message has a data indication indicating an auto response. The method of claim 12,
The one or more processors are further configured to automatically answer the emergency callback without detection of a manual response signal through the user interface. The method of claim 12,
The one or more processors also generate an audible alert in the user interface for notification of the emergency callback if the data indications in the data fields indicate that the incoming call message is for the emergency callback. Mobile communication device configured to refrain from doing so. The method of claim 12,
The one or more processors may further comprise:
Cause a mobile identifier identifying the mobile communication device to be transmitted via the wireless transceiver for an emergency call for reception by the public safety response point entity,
To receive the incoming call message by receiving an incoming call message addressed to the mobile identifier.
A mobile communication device. The method of claim 12,
The one or more processors may further comprise:
Identify an in-coverage state for the wireless communication network after an out-of-coverage state for the wireless communication network causing the emergency call to be disconnected;
Cause a message to be sent to the wireless transceiver based on identifying a condition within the coverage;
To monitor the reception through the wireless transceiver of the incoming call message for the emergency callback after causing the message to be transmitted through the wireless transceiver.
A mobile communication device. The wireless communication network of claim 12, wherein the wireless communications network is operating in accordance with a Global Systems for Mobile communications (GSM) standard, wherein the one or more processors are also:
If the data indications in the data fields indicate that the incoming call message is for the emergency callback, refrain from performing a DR (ALERT) process and a U7 CALL RECEIVED process in the GSM standard when responding to the emergency callback. Mobile communication device. The method of claim 12,
The one or more processors may further comprise:
And refrain from automatically responding to the incoming call message if the data indications in the data fields indicate that the incoming call message is not for the emergency callback or automatic response. 13. The system of claim 12, wherein the user interface comprises a plurality of keys, a speaker, and a microphone, wherein the one or more processors also include:
A mobile communication device operable to enable the emergency callback to be answered automatically by enabling the speaker to generate audible signals from the public safety response point entity and enabling the microphone to receive audible signals . 13. The mobile device of claim 12, wherein the mobile communication device has a handset talk mode and a speakerphone talk mode, wherein the one or more processors further include:
And if the data indications in the data fields indicate that the incoming call message is for the emergency callback, enable the speakerphone talk mode without detecting a manual speakerphone activation signal through the user interface.

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