(51) Int Cl.: H04W 4/02 ( )

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Note: Within nine months of the publication of the mention of the grant of the European patent in the European Patent Bulletin, any person may give notice to the European Patent Office of opposition to that patent, in accordance with the

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EP 1 652 329 B1

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EUROPEAN PATENT SPECIFICATION

(45) Date of publication and mention of the grant of the patent:

17.06.2015 Bulletin 2015/25

(21) Application number: 04778713.0

(22) Date of filing: 21.07.2004

(51) Int Cl.:

H04W 4/02(2009.01)

(86) International application number:

PCT/US2004/023339

(87) International publication number:

WO 2005/011301 (03.02.2005 Gazette 2005/05)

(54) WIRELESS NETWORK LOCATION-BASED REFERENCE INFORMATION

AUF EINEM DRAHTLOSEN NETZWERKORT BASIERENDE REFERENZINFORMATIONEN INFORMATIONS DE REFERENCE BASEES SUR L’EMPLACEMENT DANS UN RESEAU HERTZIEN (84) Designated Contracting States:

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

Designated Extension States:

AL HR LT LV MK

(30) Priority: 21.07.2003 US 623156

(43) Date of publication of application:

03.05.2006 Bulletin 2006/18

(73) Proprietor: TeleCommunication Systems, Inc. Annapolis, MD 21401 (US) (72) Inventors: • POHUTSKY, Joseph Annapolis, MD 21403 (US) • GROAN, Joel Shoreline, WA 98133 (US) • HELME, Steve Seattle, WA 98136 (US)

(74) Representative: Walker, Neville Daniel Alan Ipconsult

21A Commercial Road

Swanage, Dorset BH19 1DF (GB) (56) References cited: EP-A1- 1 030 531 WO-A1-97/41654 WO-A2-98/21913 WO-A2-03/056853 US-A- 6 131 028 US-A1- 2003 100 320 US-A1- 2004 092 250 US-A1- 2004 203 922 US-A1- 2004 235 493 US-B1- 6 240 295 US-B1- 6 560 456 US-B1- 6 560 456 US-B2- 6 456 852

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5 10 15 20 25 30 35 40 45 50 55 Description

BACKGROUND OF THE INVENTION 1. Field of the Invention

[0001] This invention relates generally to the field of wireless telecommunications. More particularly, it relates to a system and method for implementing a location-re-lated information service in a wireless phone network, particularly with respect to short messaging systems (SMS), IS-41C, and location-enabled content pulls.

2. Background of Related Art

[0002] In todays world, wireless devices such as wire-less telephones play an important role. Much information is but a phone call away.

[0003] One service that a wireless device can provide is information relating to a particular area. For instance, if one were traveling or otherwise in an unfamiliar area and wanted to locate a nice restaurant, perhaps a friendly inquisition of a gas station attendant might be helpful. Or, advertising signs might be the basis for selection of a good meal. A phone book is also a conventional way to find a particular service.

[0004] Wireless devices have provided the ability to determine the location of services in an area much more conveniently. For instance, one existing wireless device technology uses mobile originated short messaging sys-tem (SMS) techniques. In this conventional technique, a user drafts and sends a text message to a particular serv-ice to which they subscriber. The text message that the user writes must include the type of content desired, to-gether with basic information regarding a broadly defined location of the user, e.g., zip code, city or state.

[0005] Unfortunately, conventional techniques require the user to know their geographic location at any partic-ular time, and to enter that geographic location as well as the particular type information sought via their mobile originated short message system (SMS) service. This knowledge is often difficult if not impossible to obtain ac-curately, and the required inputs are cumbersome and extensive.

[0006] There is a need for a mobile system that is ca-pable of quick, accurate, and easily obtained location-based information.

[0007] U.S. Patent No. 6,560,456 and WO 03/056853 teach information that is provided to a a mobile handset without the use of directory assistance digits suffixed by at least one auxiliary digit associated with the requested location information.

[0008] U.S. Patent No. 6,560,456 appears to disclose information that is provided to a communication device in response to a request for such service received from the communication device. The request may be in the form of a digits request trigger or short message service (SMS) origination message that is initiated from a

wire-less telephone. The digits request trigger or SMS origi-nation message is sent frcm the communication device to a wireless web information services gateway. The gateway retrieves the requested information from one or more sources for forwarding to a user via an SMS mes-sage.

[0009] WO 03/056853 appears to teach a handset that can send a request to a landmark location messaging server to obtain details of location landmarks in the form of an SMS. The request contains the phone number of a mobile station together with category data ’D1’. ’D2’ or ’D3’.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Features and advantages of the present inven-tion will become apparent to those skilled in the art from the following description with reference to the drawings, in which:

Fig. 1 shows the four main components of an exem-plary 411 xx system in accordance with the principles of the present invention.

Fig. 3 shows an exemplary 411 xx application inter-nal call flow for the exemplary 411 xx system shown in Fig. 1.

DETAILED DESCRIPTION OF ILLUSTRATIVE EM-BODIMENTS

[0011] The present invention provides a ’411xx’ value added service to wireless users. The disclosed ’411xx’ service allows a mobile user who may be unfamiliar with their current geographic location to nevertheless obtain desired information.

[0012] In accordance with the principles of the present invention, a mobile user is provided with quick, accurate, and current information relating to the geographic area, e.g., different services in their current location, stores, libraries, gas stations, etc., via a mobile terminated (MT) short message system (SMS) message.

[0013] The present invention is a variant of the tradi-tional directory assistance information service call 4-1-1. In accordance with an embodiment of the present inven-tion, in addition to the traditional ’4-1-1’ dialed digits, a mobile user would also dial a number (or numbers) rep-resenting a feature code for a particular service. Example services might be ’nearby automated teller machines (ATMs)’, or ’local traffic information’.

[0014] The ’xx’ in the ’411xx’ service name represents two digits by way of example only. More than 2 extra digits may be implemented within the principles of the present invention, as may only a single extra digit in ex-tremely simple systems.

[0015] Upon receiving a 411xx call, the mobile switch-ing center (MSC) generates an ORREQ/TCAP trigger based on a translation of the requested service repre-sented by the extra ’xx’ digits. For a GSM system, this

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5 10 15 20 25 30 35 40 45 50 55 could be an ISUP based trigger, or a GSM message such as initiaIDP.

[0016] The 411 xx call is terminated on the MSC after an audible whisper notice plays to the caller, e.g., "thank you for calling, your requested information will be sent momentarily".

[0017] Auxiliary benefits arise from the present inven-tion as well. For instance, by virtue of terminating a re-quest for services call at the relevant MSC. long distance charges are likely avoided. Moreover, in many subscriber plans, no airtime charges to the subscriber would apply.

[0018] Fig. 1 shows four main components of an ex-emplary 411 xx system in accordance with the principles of the present invention.

[0019] In particular, as shown in Fig. 1, an exemplary 411xx system has four major components: an application handling mobile switching center (MSC) feature code translations 102, a location system 104, a Short Messag-ing System (SMS) system 106, and a content provider

108.

[0020] In operation, as shown in step 1 of Fig. 1, a subscriber 101 requests directed information by dialing ’411xx’ on his or her wireless telephone. The 411xx dialed number comprises lead digits of ‘411’ (traditionally a tel-ephone number for phone number information), followed by two (or more) trailing digits (i.e., ’XX’).

[0021] In step 2, the 411xx telephone call is passed in an ORREQ/TCAP message to the location system 104,

and then on to the SMS system 106 as shown in step 3.

[0022] In step 4, the SMS system 106 requests content from the relevant content provider 108.

[0023] In step 5, the content provider 108 packages the requested content information into an SMS message back to the SMS system 106.

[0024] In step 6, the SMS system 106 forwards the SMS message including the requested content informa-tion to the MSC 102 servicing the subscriber 101. [0025] In step 7, the SMS message response is deliv-ered to the subscriber 101 from the MSC 102.

[0026] Step 8 depicts TDR messages being transmit-ted by the SMS system 106 to the billing mediation server

110.

[0027] Fig. 1 also depicts a step 0, which relates to the use of a 411 xx service in conjunction with advertising. In this application, once a subscriber sees, hears or is otherwise informed of particular 411xx information via advertising, he or she becomes induced into dialing the relevant 411 xx telephone number.

[0028] Fig. 2 is an exemplary 411xx call flow ladder diagram for the exemplary 411xx system shown in Fig. 1. This is an ANSI-only call, and is used for exemplary purposes only. The present invention relates equally to GSM call flow.

[0029] In particular, as shown in step 221, a subscriber

101 makes a phone call with 411xx dialed digits, that is transmitted to the servicing MSC 102.

[0030] In step 222, an ORREQ INVOKE message is transmitted from the MSC 102 to a STP 202, with relevant

parameters for an otherwise conventional ORREQ IN-VOKE message, including [BILLID, MIN, ESN, MSCID, DGTSDIAL, ORIGTRIG, and TRANSCAP]

[0031] In step 223, the STP 202 passes the ORREQ INVOKE message to an SCP 411 204. The SCP 411 204

returns an ORREQ RETURN RESULTS message with relevant parameters [identifier, Length, AccessDenie-dReason, and ActionCode]

[0032] In step 225, the STP 202 passes the ORREQ RETURN RESULTS message with relevant parameters [AccessDeniedReason and ActionCode] to the MSC

102.

[0033] In step 227, the SCP 204 sends a SUBMIT_SM message to the relevant SMPP server 206 including rel-evant parameters, e.g., [service_type, source_addr_ton, source_addr_npi, source_addr, destination_addr_ton, destination_addr_npi, destination_addr, esm_class, protocol_id, priority_flag, schedule_delivery_time, validity_period, registered_delivery, replace_if_ present_flag, data_coding, sm_default_mg-id, sm_length, short_message, user_message_reference, sar_Msg_ref_num, sar_total_segments, sar_segment_ seqnum]

[0034] In step 228, the SMPP server 206 returns a SUBMIT_SM-RESPONSE message, including relevant parameters [command_length, command_id, command_status, sequence_number, and message_ID]

[0035] In step 229, the SMPP server 206 transmits the SMPP MIN, Short Message to the subscriber 101. [0036] In step 230, a SMPP Delivery Receipt is trans-mitted by the MSC 102 to the SMPP server 206. [0037] In step 231, a DELIVER_SM message is trans-mitted by the SMPP server 206 to the SCP 204, including relevant parameters [service_type, source_addr_ton, source_addr_npi, source_addr, dest_addr_ton, dest_addr_npi, destination_addr, esm_class, protocol_id, priority_flag, schedule_delivery_time, validity_period, registered_delivery, replace_if_ present_flag, data_coding, sm_defauit_mg_id, sm_length, short_message, user_message_reference, and message_state]

[0038] In step 232, the SCP 204 returns a DELIVER_SM-RESPONSE message back to the SMPP server 206, including the relevant parameters [command_length, command_id, command_status, sequence_number, and message_ID]

[0039] Fig. 3 shows an exemplary 411 xx application internal call flow for the exemplary 411 xx system shown in Fig. 1.

[0040] In particular, as shown in step 321 of Fig. 3, an ORREQ INVOKE message is passed from the STP 301

to a 411 SCPapp 302, including relevant parameters [BILLID, MIN, ESN, MSCID, DGTSDIAL, ORIGTRIG, and TRANSCAP]

[0041] In step 322, an ORREQ RETURN RESULTS message is passed by the 411 SCPapp 302 back to the STP 301, including relevant parameters [Identifier, Length, AccessDeniedReason, and ActionCode]

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5 10 15 20 25 30 35 40 45 50 55

[0042] In step 323, a NQUEUE message is transmitted by the 411 SCPapp 302 to the 411 Queue 303, including relevant parameters [cellid, mobil_id, dialedDigits, mscid, billingid, and transTime]

[0043] In step 324, the 411 SCPapp 302 transmits a NQUEUE message to a 411 internal queue 304, includ-ing relevant parameters [cellid, mobil_id, dialedDigits, mscid, billingid, transTime]

[0044] In step 325, a DQUEUE message is transmitted by the 411 queue 303 to the 411 content application 305,

including relevant parameters [cellid, mobil_id, dialed-Digits, mscid, billingid, and transTime]

[0045] In step 326, a DQUEUE message is transmitted by the 411 internal queue 304 to the 411 content appli-cation 305, including relevant parameters [cellid, mobil_id, dialedDigits, mscid, billingid, and transTime]

[0046] In step 327, an Internet API over TCP/IP mes-sage is transmitted by the content provider 307 back to the 411 content application 305.

[0047] In step 328, a DBSelect message is transmitted from a database 306 to the 411 content application 305,

including relevant parameters cellid, mobil_id, dialedDig-its, mscid, billingid, transTime, contentCont, msg, and deliveryCode].

[0048] In step 329, an NQUEUE message is transmit-ted from the 411 content application 305 to the SMPP queue 309, including relevant parameters [cellid, mobil_id, dialedDigits, mscid, billingid, transTime, con-tentCont, msg, and deliveryCode]

[0049] In step 330, a DQUEUE message is transmitted from the MSPP Queue 309 to the 411 back end 310,

including relevant parameters cellid, mobil_id, dialedDig-its, mscid, billingid, transTime, contentCont, msg, deliv-eryCode, and SmppseqNum]

[0050] In step 331, a NQUEUE message is transmitted from the 411 back end 310 to the DB Queue 308, includ-ing relevant parameters cellid, mobil_id, dialedDigits, mscid, billingid, transTime, contentCont, msg, delivery-Code, and SmppseqNum]

[0051] In step 332, a DBinsert message is transmitted from the 411 back end 310 to the database 306, including relevant parameters [cellid, mobil_id, dialedDigits, mscid, billingid, transTime, contentCont, msg, delivery-Code, and SmppseqNum]

[0052] The present invention is applicable for any mo-bile device that supports momo-bile terminated SMS (MT SMS), or any wireless telephone capable of receiving short message system (SMS), EMS or MMS messages. It has applicability with, e.g., call center based concierge services, and text based 4-1-1 services.

[0053] The inventive system is relatively easy and af-fordable for the mobile operator to implement.

[0054] In accordance with the principles of the present invention, the short messaging may be combined with audio passages based on the particular application.

[0055] While the invention has been described with ref-erence to the exemplary embodiments thereof, those skilled in the art will be able to make various modifications

to the described embodiments of the invention without departing from the scope of the invention.

Claims

1. A method of providing location-based reference in-formation in a wireless network, the method CHAR-ACTERIZED as:

receiving a request for location information from a subscriber device (101), said request for loca-tion informaloca-tion comprising dialed directory as-sistance digits suffixed by at least one auxiliary digit associated with said requested location in-formation;

querying a location-based wireless service (104) in response to said request for location information to automatically obtain a current lo-cation of said subscriber device (101);

retrieving said requested location information associated with said obtained current location and selected using said at least one auxiliary digit; and

transmitting said requested location information to said subscriber device (101).

2. The method of providing location-based reference information in a wireless network according to claim 1, wherein:

at least two auxiliary digits are suffixed to said end of said dialed directory assistance digits.

said information telephone call is initiated with said dialed directory assistance digits.

said current location of said subscriber device (101) is obtained using wireless or cellular net-work signaling.

said current location of said subscriber device (101) is determined using an angle of arrival of a wireless signal from said subscriber device (101).

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5 10 15 20 25 30 35 40 45 50 55

said current location of said subscriber device (101) is determined using a network generated location based on a centroid of a cell site sector’s radio frequency (RF) polygon.

said current location of said subscriber device (101) is determined using a time difference of arrival of wireless signals from said subscriber device (101).

said current location of said subscriber device (101) is determined using time of arrival of a wireless signal from said subscriber device (101).

said current location of said subscriber device (101) is determined using a known location of a cell/sector servicing said subscriber device (101).

10. A system to provide location-based reference infor-mation in a wireless network, the system CHARAC-TERIZED as comprising:

a receiver to receive a request for location infor-mation from a subscriber device (101), said re-quest for location information comprising dialed directory assistance digits suffixed by at least one auxiliary digit associated with said request-ed location information;

a location-based wireless service (104) queried in response to said request for location informa-tion to automatically obtain a current locainforma-tion of said subscriber device (101);

a retriever to retrieve said requested location in-formation associated with said obtained current location and selected using said at least one auxiliary digit; and

a transmitter to transmit said requested location information to said subscriber device (101).

11. The system to provide location-based reference

in-formation in a wireless network according to claim 10, wherein:

at least two auxiliary digits are suffixed to said dialed directory assistance digits.

12. The system to provide location-based reference in-formation in a wireless network according to claim 10, wherein:

said information telephone call is initiated with said dialed directory assistance digits.

Patentansprüche

1. Verfahren zum Bereitstellen von ortsgestützten Re-ferenzinformationen in einem drahtlosen Netzwerk, wobei das Verfahren dadurch gekennzeichnet ist, dass es Folgendes beinhaltet:

Empfangen einer Anforderung von Ortsinforma-tionen von einem Teilnehmergerät (101), wobei die genannte Anforderung von Ortsinformatio-nen Wahlverzeichnishilfsziffern beinhaltet, die als Suffix wenigstens eine mit den genannten angeforderten Ortsinformationen assoziierte Zusatzziffer haben;

Abfragen eines ortsgestützten drahtlosen Dienstes (104) als Reaktion auf die genannte Anforderung von Ortsinformationen, um auto-matisch einen aktuellen Ort des genannten Teil-nehmergeräts (101) zu erhalten;

Abrufen der genannten angeforderten Ortsinfor-mationen, die mit dem genannten erhaltenen aktuellen Ort assoziiert sind und mit der genann-ten wenigsgenann-tens einen Zusatzziffer gewählt wer-den; und

Senden der genannten angeforderten Ortsinfor-mationen zu dem genannten Teilnehmergerät (101).

2. Verfahren zum Bereitstellen von ortsgestützten Re-ferenzinformationen in einem drahtlosen Netzwerk nach Anspruch 1, wobei:

wenigstens zwei Zusatzziffern einen Suffix an dem genannten Ende der genannten Wahlver-zeichnishilfsziffern haben.

der genannte Informationstelefonanruf mit den genannten Wahlverzeichnishilfsziffern eingelei-tet wird.

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der genannte aktuelle Ort des genannten Teil-nehmergeräts (101) anhand von drahtloser oder zellulärer Netzwerksignalisierung erhalten wird.

der genannte aktuelle Ort des genannten Teil-nehmergeräts (101) anhand eines Ankunftswin-kels eines drahtlosen Signals von dem genann-ten Teilnehmergerät (101) ermittelt wird.

der genannte aktuelle Ort des genannten Teil-nehmergeräts (101) anhand eines netzwerker-zeugten Orts auf der Basis eines Zentroids eines Polygons der Funkfrequenz (RF) eines Zellen-standortsektors ermittelt wird.

der genannte aktuelle Ort des genannten Teil-nehmergeräts (101) anhand einer Ankunftszeit-differenz von drahtlosen Signalen von dem ge-nannten Teilnehmergeräts (101) ermittelt wird.

der genannte aktuelle Ort des genannten Teil-nehmergeräts (101) anhand der Ankunftszeit ei-nes drahtlosen Signals von dem genannten Teil-nehmergerät (101) ermittelt wird.

der genannte aktuelle Ort des genannten Teil-nehmergeräts (101) anhand eines bekannten Ortes eines/einer Zelle/Sektors ermittelt wird, die/der das genannte Teilnehmergerät (101) be-dient.

10. System zum Bereitstellen von ortsgestützten Refe-renzinformationen in einem drahtlosen Netzwerk, wobei das System dadurch gekennzeichnet ist,

dass es Folgendes umfasst:

einen Empfänger zum Empfangen einer Anfor-derung von Ortsinformationen von einem Teil-nehmergerät (101), wobei die genannte Anfor-derung von Ortsinformationen Wahlverzeich-nishilfsziffern beinhaltet, die als Suffix wenigs-tens eine Zusatzziffer haben, die mit den ge-nannten angeforderten Ortsinformationen asso-ziiert ist;

einen ortsgestützten drahtlosen Dienst (104), der als Reaktion auf die genannte Anforderung von Ortsinformationen abgefragt wird, um auto-matisch einen aktuellen Ort des genannten Teil-nehmergeräts (101) zu erhalten;

einen Retriever zum Abrufen der genannten an-geforderten Ortsinformationen, die mit dem ge-nannten erhaltenen aktuellen Ort assoziiert sind und über die genannte wenigstens eine Zusatz-ziffer gewählt werden; und

einen Sender zum Senden der genannten an-geforderten Ortsinformationen zu dem genann-ten Teilnehmergerät (101).

11. System zum Bereitstellen von ortsgestützten Refe-renzinformationen in einem drahtlosen Netzwerk nach Anspruch 10, wobei:

wenigstens zwei Zusatzziffern einen Suffix für die genannten Wahlverzeichnishilfsziffern bil-den.

12. System zum Bereitstellen von ortsgestützten Refe-renzinformationen in einem drahtlosen Netzwerk nach Anspruch 10, wobei:

der genannte Informationstelefonanruf mit den genannten Wahlverzeichnishilfsziffern eingelei-tet wird.

Revendications

1. Un procédé pour fournir des informations de réfé-rence basées sur l’emplacement dans un réseau sans fil, le procédé CARACTÉRISÉ par:

la réception d’une demande d’informations sur l’emplacement provenant d’un dispositif d’abon-né (101), ladite demande d’informations sur l’emplacement comprenant des chiffres de l’as-sistance annuaire suffixés par au moins un chif-fre auxiliaire associé avec lesdites informations demandées sur l’emplacement ;

interroger un service sans fil basé sur l’empla-cement (104) en réponse à ladite demande d’in-formations sur l’emplacement pour obtenir auto-matiquement un emplacement actuel dudit

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dis-5 10 15 20 25 30 35 40 45 50 55 positif d’abonné (101) ;

récupérer lesdites informations demandées sur l’emplacement associées avec ledit emplace-ment actuel obtenu, et sélectionnées en utilisant ledit au moins un chiffre auxiliaire ; et

transmettre lesdites informations demandées sur l’emplacement audit dispositif de l’abonné (101).

2. Le procédé pour fournir des informations de référen-ce basées sur l’emplaréféren-cement dans un réseau sans fil selon la revendication 1, dans lequel :

au moins deux chiffres auxiliaires sont suffixés à ladite fin desdits chiffres de l’assistance an-nuaire.

ledit appel téléphonique d’informations est en-clenché par lesdits chiffres de l’assistance an-nuaire.

ledit emplacement actuel dudit dispositif d’abon-né (101) est obtenu en utilisant la signalisation d’un réseau sans fil ou cellulaire.

ledit emplacement actuel dudit dispositif d’abon-né (101) est détermid’abon-né en utilisant un angle d’ar-rivée d’un signal sans fil provenant dudit dispo-sitif d’abonné (101).

ledit emplacement actuel dudit dispositif d’abon-né (101) est détermid’abon-né en utilisant un emplace-ment généré par un réseau basé sur un centroï-de d’un polygone centroï-de radiofréquences (RF) d’un secteur de site de cellule.

ledit emplacement actuel dudit dispositif d’abon-né (101) est détermid’abon-né en utilisant une

différen-ce de temps d’arrivée des signaux sans fil pro-venant dudit dispositif d’abonné (101).

ledit emplacement actuel dudit dispositif d’abon-né (101) est détermid’abon-né en utilisant le temps d’ar-rivée d’un signal sans fil provenant dudit dispo-sitif d’abonné (101).

ledit emplacement actuel dudit dispositif d’abon-né (101) est détermid’abon-né en utilisant un emplace-ment connu d’une cellule / d’un secteur desser-vant ledit dispositif d’abonné (101).

10. Un système pour fournir des informations de réfé-rence basées sur l’emplacement dans un réseau sans fil, le système CARACTÉRISÉ en ce qu’il comprend :

un récepteur pour recevoir une demande d’in-formations sur l’emplacement provenant d’un dispositif d’abonné (101), ladite demande d’in-formations sur l’emplacement comprenant des chiffres de l’assistance annuaire suffixés par au moins un chiffre auxiliaire associé avec lesdites informations demandées sur l’emplacement ; un service sans fil basé sur l’emplacement (104) interrogé en réponse à ladite demande d’infor-mations sur l’emplacement pour obtenir auto-matiquement un emplacement actuel dudit dis-positif d’abonné (101) ;

un récupérateur pour récupérer lesdites infor-mations demandées sur l’emplacement asso-ciées avec ledit emplacement actuel obtenu, et sélectionnées en utilisant ledit au moins un chif-fre auxiliaire ; et

un émetteur pour transmettre lesdites informa-tions demandées audit dispositif d’abonné (101).

11. Le système pour fournir des informations de réfé-rence basées sur l’emplacement dans un réseau sans fil selon la revendication 10, dans lequel :

au moins deux chiffres auxiliaires sont suffixés auxdits chiffres de l’assistance annuaire.

12. Le système pour fournir des informations de réfé-rence basées sur l’emplacement dans un réseau sans fil selon la revendication 10, dans lequel :

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5 10 15 20 25 30 35 40 45 50 55 ledit appel téléphonique d’informations est en-clenché par lesdits chiffres de l’assistance an-nuaire.

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REFERENCES CITED IN THE DESCRIPTION

This list of references cited by the applicant is for the reader’s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description