CN101273581A - Method and apparatus for supporting location services on a radio communication system - Google Patents

Abstract

An approach is provided for reliably exchanging location service data over an unlicensed mobile access network operating with a cellular network. A request is processed for position location information of a terminal configured to operate with an unlicensed mobile access network that has connectivity with a radio communication network for providing a position location service. Data message specifying the position location information is generated, wherein the data message and the request are generated according to a signaling protocol that is compatible with the unlicensed mobile access network. Reliable delivery of the data message is provided by a transport layer protocol.

Description

Method and apparatus for supporting location services on a radio communication system

related application

The application, pursuant to 35 U.S.C. §119(e), calls for U.S. Provisional Application No. 60/701,887, filed July 22, 2005, entitled "Method and Apparatus for Supporting Location Service Within an Unlicensed Mobile Access Network and a Cellular System" the benefit of the earlier filing date of the application; which is hereby incorporated by reference in its entirety.

technical field

The present invention relates to communications, and more particularly to supporting position location services on radio communication systems.

Background technique

Radio communication systems, such as cellular systems such as spread spectrum systems such as Code Division Multiple Access (CDMA) networks, or Time Division Multiple Access (TDMA) networks, provide users with the convenience of mobility with a rich set of services and features. This convenience has led to the mass adoption of wireless communication systems by a growing number of consumers as an accepted mode of communication for business and personal use. To foster greater adoption, the telecommunications industry, from manufacturers to service providers, has agreed with enormous expenditure and effort to develop standards for communication protocols under various services and features.

At the same time, with the rapid development of cellular technology, license-free wireless technology enjoys increasing deployment to provide users with better functionality, flexibility and cost-effectiveness. One area of effort includes the extension of mobile services into unlicensed spectrum to provide users with seamless delivery of mobile voice and data services. Because cellular technology and license-free wireless technology use different protocols and standards, there are inefficiencies in signaling, reliability, and spectrum usage, especially in the area of location services and emergency services.

Therefore, there is a need for a method to provide spectrally efficient location services and emergency services between Unlicensed Mobile Access (UMA) and cellular networks without modifying existing standards and protocols.

Contents of the invention

Embodiments of the present invention address these and other needs, wherein a method is presented for reliably exchanging location service data over an unlicensed mobile access network operating with a cellular network.

According to one aspect of an embodiment of the present invention, a method includes: processing a request for positioning location information of a terminal configured to operate with an authorization-free mobile access network, the authorization-free mobile access network having an operation with a user Connectivity to radio communication networks that provide location-based services. The method also includes generating a data message specifying the position location information, wherein the data message and the request are generated according to a signaling protocol compatible with the license-exempt mobile access network. Reliable delivery of the data messages is provided by a transport layer protocol.

According to another aspect of an embodiment of the present invention, an apparatus includes: a processor configured to process a request for a positioning location. The processor is further configured to: generate a data message specifying the position location information for transmission over an unlicensed mobile access network having communication with a radio communication network connectivity to provide location-based services. The data message and the request are generated according to a signaling protocol compatible with the license-free mobile access network. Reliable delivery of the data messages is provided by a transport layer protocol.

According to another aspect of an embodiment of the present invention, a method includes: receiving a message to initiate a positioning service. The message has a format according to a signaling protocol compatible with an unlicensed mobile access network having connectivity with a radio communication network for providing position location services. The method also includes: generating a service request for transmission to the radio communication network in response to the received message; and receiving an allocation request from the radio communication network for the license-exempt mobile access Network resource allocation in the incoming network. Further, the method includes: generating a data message, the data message specifying location information of the terminal, wherein the data message is generated according to a signaling protocol, and a transport layer protocol provides reliable delivery of the data message.

According to another aspect of an embodiment of the present invention, an apparatus includes: a processor configured to: receive a message to initiate a positioning location service. The message has a format according to a signaling protocol compatible with an unlicensed mobile access network having connectivity with a radio communication network for providing position location services. The processor is further configured to: generate a service request for transmission to the radio communication network in response to the received message; and receive an allocation request from the radio communication network for the free Authorizes network resource allocation in mobile access networks. The processor is further configured to: generate a data message specifying position location information of the terminal. The data messages are generated according to a signaling protocol, and reliable delivery of the data messages is provided by a transport layer protocol.

According to another aspect of an embodiment of the present invention, a method includes: receiving an initiation message according to an unlicensed mobile access (UMA) layer 3 protocol to initiate a positioning location service supported by an unlicensed mobile access network and a cellular communication network . The method also includes determining whether the originating message specifies an emergency call; and establishing an audio path to the terminal only if the originating message specifies the emergency call. Further, the method includes: without using an Unauthorized Mobile Access (UMA) Layer 2 protocol to confirm receipt of the data message, generating the data message, the data message specifying location information, wherein, according to the UMA layer 3 protocol to generate the data message.

According to yet another aspect of the embodiments of the present invention, a method includes: receiving a paging request from a mobile switching center of a cellular network. The paging request initiates a positioning location service supported by an unlicensed mobile access network and a cellular communication network. The method further includes: generating a data message according to an Unauthorized Mobile Access (UMA) Layer 3 protocol to obtain location information of the terminal for transmission to the terminal, wherein the data message is generated by a transport layer protocol different from the UMA Layer 2 protocol Reliable delivery of the data messages is provided.

Other aspects, features, and advantages of the invention will become apparent from the following detailed description, simply by illustrating a number of particular embodiments and implementations, including the best mode contemplated for carrying out embodiments of the invention. The invention is also capable of other and different embodiments, and its several details can be modified in various obvious respects, all without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative rather than restrictive.

Description of drawings

In the drawings, the present invention is shown by way of example and not limitation, like numerals denote like elements, wherein:

1 is a diagram of a communication system for extending mobile services on unlicensed spectrum according to various embodiments of the present invention;

2 is a diagram of an Unauthorized Mobile Access (UMA) functional architecture according to various embodiments of the present invention;

3 is a diagram of an Up protocol architecture supporting circuit-switched domain signaling according to various embodiments of the present invention;

4 is a diagram of an Up voice bearer protocol architecture supporting circuit-switched domain signaling according to various embodiments of the present invention;

5 is a diagram of a call flow for supporting mobile-initiated positioning location services on a traffic channel in a code division multiple access (CDMA) network;

6 is a diagram of a call flow supporting mobile-originated call setup in Unlicensed Mobile Access-Code Division Multiple Access (UMA-cdma) according to various embodiments of the present invention;

7 is a flowchart of a process of providing location services according to an embodiment of the present invention;

8 is a diagram of a call flow for supporting mobile station (MS)-initiated positioning location services in a UMA-network according to various embodiments of the present invention;

9 is a diagram of a call flow for supporting a mobile station called positioning location service in a UMA-network according to various embodiments of the present invention;

FIG. 10 is a diagram of hardware that may be used to implement an embodiment of the invention;

11A and 11B are diagrams of different cellular mobile telephone systems capable of supporting various embodiments of the present invention; and

12 is a diagram of exemplary components of a mobile station capable of operating in the systems of FIGS. 11A and 11B in accordance with an embodiment of the present invention.

Figure 13 is a diagram of an enterprise network capable of supporting the processes described herein, according to an embodiment of the invention.

Detailed ways

Apparatus, methods, and software for providing location location services over license-free wireless networks and cellular systems are disclosed. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. However, it will be understood by those skilled in the art that the invention may be practiced without these specific details or with equivalents. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring embodiments of the invention.

Although embodiments of the present invention are discussed in relation to spread spectrum systems and Unlicensed Mobile Access (UMA) networks, those skilled in the art will understand that embodiments of the present invention can be applied to any type of radio communication system. Furthermore, various embodiments of the present invention are described with respect to Transmission Control Protocol (TCP) and Real Time Protocol (RTP); however, it is contemplated that other equivalent communication protocols may be used to practice various embodiments of the present invention.

FIG. 1 is a diagram of a communication system for extending mobile services on unlicensed spectrum according to various embodiments of the present invention. The communication system 100 comprises a cellular radio access network 101 and a license-exempt mobile access network 103 . The license-free mobile access network 103 is complementary to the radio coverage of the cellular radio access network 101; for example, the access network 103 can be used to enhance consumer premises coverage, increasing network capacity at potentially low cost. System 100 supports positioning location services in a manner that attempts to optimize spectrum usage and protocol efficiency, as will be explained more fully later. Position location services provide for the transfer of location location information or data between applications residing on the station 105 and applications within the network (ie, Position Determining Entities (PDEs)). Location information of the station 105 is crucial, for example, in emergency calls, where the geographical location of the user is required for assistance to be provided.

In an exemplary embodiment, the station 105 has dual-mode capability for direct communication with either the cellular radio access network 101 or the license-free mobile access network 103 . In one embodiment, the station 105 may be a mobile object. The terms "mobile", "mobile station (MS)", "mobile device" or "unit" are used synonymously herein. While various embodiments of the invention describe the mobile as a cell phone, it is contemplated that any mobile device with voice functionality (eg, a combined personal digital assistant (PDA) and cell phone) can be used. MS 105 is a device that provides data connectivity and telephony services to users. For example, MS 105 may be connected to a computing system (eg, personal computer, personal digital assistant, etc.) or data service enabled cellular handset.

As shown, the cellular radio access network 101 includes a base transceiver station (BTS) 107 having connectivity to a base station controller (BSC) 111 over a private network 109 . The BSC 111 communicates with the license-free mobile access network 103 through the core network 113.

The MS 105 can also communicate with the core network 113 via the license-free mobile access network 103. The unlicensed mobile access network 103 includes an unlicensed wireless network 115 (or access point (AP)) that communicates with an unlicensed mobile access (UMA) network controller (UNC) 119 using an IP access network 117 .

UNC 119 communicates with core network 113, which may include a home network and a visited network. It should be understood that although UMA for CDMA 2000 has not been discussed in the 3GPP2 standards forum, it is expected that the same UMA architecture defined for GSM (Global System for Mobile communications)/GPRS (General Packet Radio Service) will be used. The UMA for GSM/GPRS is described more fully in "UMA Architecture (Stage 2)" October 2004, which is fully incorporated herein by reference.

In an exemplary embodiment, the Unlicensed Mobile Access Network 103 employs a UMA (Unlicensed Mobile Access) architecture that communicates with the cellular radio access network 101, for example a spread spectrum system such as Code Division Multiple Access 2000 interface. According to one embodiment of the present invention, system 100 has a UMA-cdma2000 architecture, which is described more fully with respect to FIGS. 2-4. UMA for cdma2000 is an extension to CDMA 2000 mobile services (i.e. all types of services supported by current A1/A2/A5 interfaces and A10/A11 interfaces) at the consumer premises by: over Broadband Internet Protocol ( IP) network 117 tunnels specific CDMA 2000 protocols between customer premises and core network 113, and over license-free radio links (e.g., WiFi ^™ (Wireless Fidelity), Bluetooth ^™ , IEEE (Institute of Electrical and Electronics Engineers) 802.11 ) to relay them. Network 115 may operate within or around the customer's premises.

FIG. 2 is a diagram of an Unauthorized Mobile Access (UMA) functional architecture according to various embodiments of the present invention. In this example, the architecture of CDMA2000 is shown. The architecture includes one or more standard access points 115 and one or more UMA network controllers (UNCs) 119 interconnected by a broadband data network 117 such as an Internet Protocol (IP) based network. UNC 119 includes UNC Security Gateway (SGW) 121.

The UNC 119 is connected to a CDMA 2000 core network 201, for example via a standard CDMA 2000 interface 203. In this example, the cdma home/visited network 201A includes a Mobile Switching Center (MSC) 205, a Packet Data Serving Node (PDSN) 207, and an Authentication, Authorization, and Accounting (AAA) Proxy Server 209, which has access to Database 211 within the home network to authenticate MS 105. As shown, the UNC 119 communicates with the mobile switching center 205 of the home/visited network 201 via the A1/A2/A5 interface. The functionality of the MSC 205 is particularly capable of routing calls from and to the MS 105. In case of roaming, the cdma2000 home network 201B provides an AAA server 213 which communicates with the AAA proxy server 209 . AAA server 213 has access to database 215 of cdma2000 home network 201B.

FIG. 3 is a diagram of an Up protocol architecture supporting circuit switched (CS) domain signaling according to various embodiments of the present invention. At MS 105, the protocol stack includes UMA-L3 protocol 301 (also denoted UL3), which supports UMA layer 3 signaling functions. The UMA-L3301 replaces cdma L3 and provides additional UMA-specific functions. The UMA-L3301 takes advantage of the characteristics of an unlicensed radio link; these characteristics can be significantly different from a cdma radio link. For example, UMA-L3301 provides the following functions: register with UNC 119; establish a bearer path for both circuit switched traffic and packet switched traffic between MS 105 and UNC 119; support in cdma radio access network 101 and handover between the authorization-free mobile access network 103; support the identification of the AP 115 for UMA access; support other functions, such as paging, password configuration, etc.; and transparent transmission and communication between the MS 105 and the UNC 119 Radio resource management-independent cdma L3 messages.

The next lower layer is a transport layer protocol 303, such as the Transmission Control Protocol (TCP). The protocol stack also provides remote IP layer 305, IPSec ESP (Internet Secure Encapsulating Security Payload) 307, transport IP 309 and license-free lower layer 311.

To communicate with MS 105, access point 115 uses transport IP 309 and license-free lower layer 311. On the network side of Up interface 321 , access point 115 uses access layer 313 . As shown, broadband IP network 117 employs transport IP 309 and access layer 313.

UNC 119 implements the same protocol stack as MS 105. However, for communication over the A1 interface, UNC 119 provides the following protocols: Base Station Application Part (BSAP) 315, Signaling Connection Control Part (SCCP) 317 and Message Transfer Part (MTP) 319, such as MTP3, MTP2 and MTP3. This stack is provided in MSC 205.

Note that UMA-cdma is not necessarily the same as UMA for GSM/GPRS (General Packet Radio Service). The difference is mainly that UL3301 is used for UMA-cdma and URR (UMA Radio Resource) for UMA-GSM/GPRS. Furthermore, unlike GSM, cdma2000 does not distinguish between MM (Mobility Management), CC (Call Control) and SS (Supplementary Services) functions at L3. Furthermore, all L3 messages in cdma2000 are not carried transparently between MS 105 and MSC 205, but are terminated at the BSS (Base Station Subsystem) (not shown). Therefore, UNC 119 acting as BSS enables these protocols to interwork with the A1 interface between UNC 119 and MSC 205 by using BSAP messaging. This allows the MS 105 to obtain all cdma2000 services over the UMA network in the same manner as if the MS 105 were attached to the cdma2000 BSS. Further, unlike UMA-GSM, a UMA-L3 layer 301 is introduced to support cdma L3 functions as well as other UMA specific functions.

Pay particular attention to two considerations of the UMA-L3 protocol 301 . First, inside UL3 tunneling messages (e.g. UL3 uplink/downlink direct transfer, which is similar to UPLINK/DOWNLINK DIRECT TRANSFER defined for UMA-GSM), non-radio resource management related cdma L3 signaling messages (e.g. Mobile registration to the cdma network, terminal authentication, SSD (Shared Secret Data), updates) can be transparently transferred between MS 105 and -UNC 119. Secondly, communication data L3 signaling messages related to radio resource management (such as initiation message, channel allocation message, service connection message, service completion message) can be replaced by new UL3 messages. For example, such a UL3 message can be designed based on the UMA-GSM/GPRS URR message by modifying at the parameter level (e.g., the channel assignment message can be replaced by the UL3 activate channel message similar to the URR AVTIVE CHANNEL message by modifying at the parameter level replaced). Alternatively, the UL3 message can be specially designed for UMA-cdma, for example, the origination message is replaced by the UL3 origination message.

By way of example, a UMA-L3301 message is transmitted on the Up interface 321 in the following manner. If the corresponding cdma L3 message is not related to radio resource management, it is transparently transmitted between MS 105 and UNC 119 within, for example, a UL3 Uplink/Downlink Direct Transfer message. Furthermore, if the corresponding cdma L3 message is related to radio resource management, it can be replaced by a UL3 message. The UL3 message can be in the following format: (1) reuse the URR (UMA Radio Resource) message defined for the GSM/GPRS case without any modification; (2) reuse the defined for the GSM/GPRS case by modifying at the parameter level URR message; (3) A new UL3 message specially defined for UMA-cdma.

FIG. 4 is a diagram of an Up voice bearer protocol architecture supporting circuit switched (CS) domain signaling according to various embodiments of the present invention. Under this architecture, a bearer channel (or audio path) can be established between MS 105 and UNC 119. To accomplish this, in an exemplary embodiment, MS 105 is provided with the following protocols: CDMA Codec Layer 401, RTP/UDP (Real Time Protocol/User Datagram Protocol) 403, Remote IP Layer 405, IPSec ESP (Internet Secure Encapsulation Security Payload) 407, Transport IP 409 and Authorization-Free Lower Layer 411.

The protocols used at access point 115 and broadband IP network 117 are similar to the architecture of FIG. 3 . That is, the access point 115 interfaces with the MS 105 using the transport IP 309 and the license-free lower layer 411. To communicate with IP network 117 , access point 115 uses transport IP layer 409 and access layer 413 .

At UNC 119, in addition to the protocol stack employed by MS 105, UNC 119 also uses a coding layer. Further, UNC 119 includes pulse code modulation layer 415 and digital signaling layer 417 (digital signal level 0 (DS0) in this example); these functions also reside within MSC 205.

For example, UNC 119 may establish an RTP/UDP stream to establish a bearer channel to MS 105 by exchanging bearer path setup information. The information may include channel coding, UDP port and IP address of uplink stream, voice sample size, etc. Specifically, MS 105 establishes a real-time protocol (RTP) path to UNC 119, the uplink RTP path. Additionally, the MS 105 may send a Channel Confirmation message to the UNC 119 indicating the UDP port 403 and IP address for the downlink flow. UNC 119 then establishes a downlink RTP path with MS 105 so that UNC 119 can begin sending RTP/UDP packets to MS 105. Therefore, an end-to-end audio path can be established between the MS 105 and the core network 103.

The architecture described above supports capabilities for efficiently providing position location services across the license-exempt mobile access network 103 and the cellular radio access network 101 . For a better understanding of this capability, it is instructive to refer to the processes of Figures 5 and 6 for providing position location services.

FIG. 5 is a diagram of a call flow for supporting mobile-initiated positioning location services on a traffic channel in a CDMA network. Position location services within a CDMA network are typically established using normal call setup procedures for voice calls. In step 501, MS 105 initiates a location location service call. Optionally, through step 503, the MSC 205 can initiate a unique challenge request response. In step 505, the MS 105 sends location location information to the BTS 107 in a data burst on the traffic channel. BTS 107 acknowledges receipt of data bursts using layer 2 protocols to issue acknowledgment (ACK) messages.

In step 509, the BTS 107 encapsulates the location information in an ADDS (Application Data Delivery Service) delivery message and sends it to the MSC 205. If PDE (not shown) has information for MS 105, then MSC 205 sends the information in the ADDS delivery message to BTS 107 (step 511); this message specifies the Tag information element.

In step 513, the BTS 107 sends a Data Burst message to the MS 105 on the traffic channel and indicates that a Layer 2 Ack is required. In step 515, the MS 105 sends a Layer 2 Ack to the BTS 107 upon receipt of the data burst. Thereafter, in step 517, BTS 107 sends ADDS delivery Ack to MSC 205, which includes the Tag information element received in the ADDS delivery message.

In step 519, MS 105 decides to terminate the positioning location service and sends a release command to clear the call. In step 521, BTS 107 sends the clear request message to MSC 205, and starts the timer. In step 523, MSC 205 sends clear instruction message to BTS 107, to instruct BTS 107 to release traffic channel, and start another timer. As soon as this message is received, the BTS 107 stops the first timer. Next, BTS 107 initiates call clearing (step 525) on the air interface by sending a release command on the forward traffic channel.

Correspondingly, MS 105 responds by sending a release command to BTS 107 (at step 527) and releasing the traffic channel. In step 529, BTS 107 sends the clearing complete message to MSC205. As soon as this message is received, MSC 205 stops its timer (started at step 523). Such procedures are further detailed in 3GPP2A.S0013-B entitled "Interoperability Specification (IOS) for cdma2000 AccessNetwork Interface (3G-IOS-v4.3.1)", which is hereby fully incorporated by reference.

6 is a diagram of a call flow supporting mobile-originated call setup in Unlicensed Mobile Access-Code Division Multiple Access (UMA-cdma) according to various embodiments of the present invention. In contrast to cdma networks, when UMA is used instead to provide position location services in UMA-cdma networks, the mobile-initiated call setup procedure of Figure 5 can be directly applied. However, reliability and spectral efficiency are not optimized, as described below.

In this case, by step 601, the MS 105 sends a UL3 (UMA layer 3) origination message to the serving UNC 119. In step 603, the serving UNC 119 then establishes a Signaling Connection Control Part (SCCP) connection to the MSC 205 and constructs a Connection Management (CM) service request message, placing it in a Completion Layer 3 message for transmission to the MSC 205. In step 605, MSC 205 sends an allocation request message to UNC 119 to request allocation of call resources.

Next, through step 607, the serving UNC 119 sends the UL3 activation channel message to the MS 105. The message includes bearer path establishment information such as: IP (Internet Protocol) address and UDP port for uplink flow (RTP and RTCP (Real Time Control Protocol)); and RTP payload type (for dynamically allocated payload type). In step 609, MS 105 now establishes an RTP (Real Time Protocol) path to UNC 119. Note that MS 105 has not yet connected the calling party to the voice path.

In step 611, MS 105 sends UL3 (UMA layer 3) activation channel Ack (acknowledgment) to UNC 119, which indicates the IP (Internet Protocol) address and UDP port (RTP/RTCP) for the downlink flow. In step 613, UNC 119 establishes a downlink RTP (Real Time Protocol) path between itself and MS 105. In step 615, UNC 119 sends a UL3 Service Connect message to MS 105, which specifies the service configuration for the call. MS 105 starts to process services according to the specified service configuration. In step 617, MS 105 responds to UNC 119 with a UL3 service connection complete message.

After both the radio resource and the circuit have been established and fully interconnected, at step 619, the UNC 119 then sends an allocation complete message to the MSC 205, and considers that the call will be in a dialog state. In step 621, the UNC 119 signals the completion of the bearer path to the MS 105 via a UL3 Activate Channel Complete message. The MS 105 can now connect the caller to the audio path.

As mentioned above, in order to provide positioning location service in UMA-cdma network, a mobile-initiated call establishment procedure in UMA-cdma is used to initiate positioning location service call. It should be understood that with this approach, two issues are involved. First, after the call setup process is completed, a UDP/RTP-based traffic channel and a UDP/RTCP-based traffic channel are established between MS 105 and UNC 119 to transmit data for location services. However, if location services are not invoked for the sake of supporting voice calls (eg emergency services), there is no need for UDP/RTP based protocols to carry data for location services. Furthermore, the established UDP/RTCP channels are not used, thus resulting in wasted capacity.

Second, in a CDMA network, most of the location service data carried in data burst messages requires a Layer 2 Ack (acknowledgment). The same requirement also applies to UMA-cdma networks. When a UDP/RTP based voice channel is used to carry data burst messages, UDP/RTP may provide little or no reliability (ie Ack based mechanism), thus requiring a different reliability mechanism.

As explained with respect to FIG. 7 , the positioning location service method of the system 100 according to various embodiments of the present invention addresses the aforementioned concerns.

FIG. 7 is a flowchart of a process of providing location services according to an embodiment of the present invention. In an aspect of the invention, the method reuses eg a TCP/IP based transport layer for UL3 to provide reliable transmission of location service data by transmitting data burst messages in UL3. Such features can be applied to both MS 105 initiated and network initiated location services calls. In addition, for MS originated calls, if the requested location service is not related to emergency calls, the UNC 119 does not need to set up a UDP/RTP based voice traffic channel as in the traditional call setup process. For the called call of MS 105, UNC 119 does not need to set up a voice traffic channel based on UDP/RTP as in the traditional call setup process. This process is detailed below.

In step 701, the MS 105 sends a request to initiate a positioning location service supported by a UMA-cdma network. Next, at step 703, the process determines the type of service request; for example, whether the request is associated with a voice call. If the service request requires normal call setup procedures (step 705), then in step 707 a media path (eg, audio path) is established. For example, a UDP/RTP channel or a UDP/RTCP channel is established between the MS 105 and the license-free wireless network 117. However, if the service request is not for the purpose of a voice call (eg, an emergency call), then at step 709 a data message specifying location information is generated. To optimize spectral efficiency, the reliable delivery of data messages is governed by the transport layer protocol (e.g. TCP), rather than UMAL2, which has characterized the traditional approach.

FIG. 8 is a diagram of a call flow for supporting MS 105-initiated positioning location services in a UMA (Unauthorized Mobile Access)-network according to various embodiments of the present invention. As shown in the figure, in step 801, MS 105 sends a UL3 initiation message to initiate a positioning location service. In this case, the UL3 origination message specifies the following fields: positioning location service initiation bit (MS_INIT_POS_IND), and global emergency call bit (GLOBAL_EMERGENCY_CALL). In step 803, the UNC 119 checks these fields; if the location location service initiation bit is set to 1, and the global emergency call bit is set to 0 (indicating that the service request is not related to an emergency voice call), then the process skips steps 805-815, And go to step 817 directly.

At step 805, UNC 119 sends a completed L3 Information message to MSC 205 indicating the CM service request. In response, the MSC 205 replies via step 807 with an allocation request message. In turn, UNC 119 forwards the UL3 Activate Channel message to MS 105 to instruct MS 105 to start setting up the audio path. Correspondingly, at step 811, the MS 105 establishes an uplink user plane RTP flow, and at step 813 sends a UL3 activation channel confirmation message.

Thereafter, at step 815, UNC 119 establishes a downlink user plane RTP flow. By step 817, UNC 119 sends a UL3 service connection message to MS 105. In response to the received UL3 Service Connect message, MS 105 sends a UL3 Service Connect Complete message (step 819) to UNC 119.

Next, at step 821, UNC 119 issues an allocation complete message to MSC 205. In step 823, UNC 119 sends a UL3 Activate Channel Complete message to MS 105, which responds with a UL3 data burst (step 825); the data burst includes positioning location services. In contrast to the approach of Figure 5, UL3 data bursts need not be acknowledged using acknowledgment signaling provided by the UMA layer 2 protocol, but a reliable delivery mechanism involves the use of a higher layer protocol, such as TCP.

In step 827, UNC 119 sends the ADDS delivery message to MSC 205, and MSC 205 responds accordingly by step 829. In step 831, UNC 119 forwards the UL3 data burst to MS 105; similar to step 835, this data burst need not be acknowledged using the UMA layer 2 protocol.

In step 835, MS 105 sends the release command message to UNC 119, and UNC 119 then sends a clear request message to MSC 205 by step 837. MSC 205 then responds with a clear command message (step 839). In step 841, UNC 119 sends a release command message to MS 105. In step 843, MS 105 replies with its own Release Command message. Thereafter, UNC 119 sends the clear complete message to MSC 205.

FIG. 9 is a diagram of a call flow for supporting a location location service of a MS 105 called in a UMA (Unauthorized Mobile Access)-network according to various embodiments of the present invention. In this exemplary case, through step 901, the MSC 205 sends a paging request message to initiate a positioning service. In step 903, UNC 119 generates a UL3 Paging Request message and sends the message to MS 105. At step 905, MS 105 responds with a UL3 Page Response message. Next, UNC 119 sends a Complete L3 Information message specifying a paging response (step 907). In step 909, MSC 205 responds by sending an allocation request message. Accordingly, at step 911, UNC 119 submits an allocation complete message. In step 913, UNC 119 also sends a UL3 information prompt message to MS 105. In step 915, MS 105 sends a UL3 Connect Command message to UNC 119. In step 917, UNC 119 then sends a connect message to MSC 205.

In step 919, MSC 205 forwards the ADDS delivery message to UNC 119. At this point, at step 921, the UNC 119 sends a UL3 data burst (where no Layer 2 acknowledgment is required). UNC 119 sends ADDS delivery confirmation message to MSC 205 (step 923). At step 925, MS 105 similarly transmits a UL3 data burst.

In step 927, UNC 119 sends an ADDS delivery message to MSC 205. In step 931, MS 105 sends the UL3 release instruction message to UNC 119, and UNC 119 then sends the clear request message to MSC 205 (step 933). In step 935, MSC 205 forwards the clear instruction message to UNC 119 in turn. In steps 937 and 939, UNC 119 and MS 105 exchange UL3 release command messages.

The described processes of Figures 8 and 9 advantageously use only the processing logic in MS 105 and UNC 119 without modifying current standard protocols. In one embodiment, these processes provide reuse of transport layer mechanisms (eg, TCP) to provide reliable transmission of location services data. Furthermore, the above scheme eliminates the need to always establish an audio path, thereby achieving better spectral efficiency.

Those skilled in the art should understand that the software, hardware (such as general-purpose processors, digital signal processor (DSP) chips, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), etc.), firmware, or a combination thereof , to implement a process for providing positioning location services supported by an unlicensed mobile access network and a cellular system. Such exemplary hardware that performs the described functions is described in detail below with respect to FIG. 10 .

Figure 10 illustrates exemplary hardware upon which various embodiments of the invention may be implemented. Computing system 1000 includes a bus 1001 or other communication mechanism for communicating information, and a processor 1003 coupled to bus 1001 for processing information. Computing system 1000 also includes main memory 1005 , such as a random access memory (RAM) or other dynamic storage device, coupled to bus 1001 for storing information and instructions to be executed by processor 1003 . Main memory 1005 may also be used to store temporary variables or other intermediate information during execution of instructions by processor 1003 . Computing system 1000 may further include a read only memory (ROM) 1007 or other static storage device coupled to bus 1001 to store static information and instructions for processor 1003 . A storage device 1009 (eg, a magnetic or optical disk) is coupled to bus 1001 for permanent storage of information and instructions.

Computing system 1000 can be coupled via bus 1001 to a display 1011 (eg, a liquid crystal display or active matrix display) for displaying information to a user. An input device 1013 , such as a keyboard including alphanumeric and other keys, can be coupled to bus 1001 for communicating information and command selections to processor 1003 . The input device 1013 may include cursor controls (such as a mouse, trackball, or cursor direction keys) to communicate direction information and command selections to the processor 1003 and to control cursor movement on the display 1011.

According to various embodiments of the invention, the processes described herein may be provided by computing system 1000 in response to processor 1003 executing an arrangement of instructions contained in main memory 1005 . Such instructions may be read into main memory 1005 from another computer-readable medium, such as storage device 1009 . Execution of the sequence of instructions contained in main memory 1005 causes processor 1003 to perform the process steps described herein. One or more processors in a multi-processing arrangement may also be employed to execute the instructions contained in main memory 1005 . In alternative embodiments, hard-wired circuitry may be used in place of or in combination with software instructions to implement embodiments of the invention. In another example, reconfigurable hardware may be used, such as a Field Programmable Gate Array (FPGA), where the function and connection topology of its logic gates are customized at run time, typically according to a programmed memory lookup table. Thus, embodiments of the invention are not limited to any specific combination of hardware circuitry and software.

Computing system 1000 also includes at least one communication interface 1015 coupled to bus 1001 . Communication interface 1015 provides bi-directional data communication coupling to a network link (not shown). Communication interface 1015 sends and receives electrical, electromagnetic or optical signals that carry digital data streams representing various types of information. Further, the communication interface 1015 may include peripheral interface devices, such as a Universal Serial Bus (USB) interface, a PCMCIA (Personal Computer Memory Card International Alliance) interface, and the like.

The processor 1003 may execute the sent code while it is being received and/or store the code in the storage device 1009 or other non-volatile memory for later execution. In this manner, computing system 1000 may obtain application code in the form of a carrier wave.

The term "computer-readable medium" is used herein to refer to any medium that participates in providing instructions to processor 1003 for execution. Such a medium may take many forms, including but not limited to, non-volatile media, volatile media, and transmission media. Non-volatile media include, for example, optical or magnetic disks, such as storage device 1009 . Volatile media includes dynamic memory, such as main memory 1005 . Transmission media include coaxial cables, copper wire and fiber optics, including the wires that comprise bus 1001 . Transmission media can also take the form of acoustic, optical or electromagnetic waves, such as those generated during radio frequency (RF) and intermediate frequency (IR) data communications. Common forms of computer readable media include, for example, floppy disks, floppy diskettes, hard disks, magnetic tape, any other magnetic media, CD-ROM, CDRW, DVD, any other optical media, punched cards, paper tape, optical marking plates, with holes or other Any other physical medium, RAM, PROM, EPROM and FLASH-EPROM, any other memory chip or cartridge, carrier wave or any other medium readable by a computer, with a pattern of optically recognizable marks.

Various forms of computer readable media may be involved in providing instructions to a processor for execution. For example, instructions for carrying out at least a portion of the present invention may initially be carried on a disk of a remote computer. In this case, the remote computer loads the instructions into main memory and sends the instructions over a telephone line using a modem. A modem at a local system receives the data on the telephone line and uses an infrared transmitter to convert the data to an infrared signal and send the infrared signal to a portable computing device, such as a personal digital assistant (PDA) or laptop computer. An infrared detector on a portable computing device receives the information and instructions carried by the infrared signal and places the data on the bus. The bus carries the data to main memory, from which a processor retrieves and executes the instructions. The instructions received by main memory can optionally be stored in storage device either before or after execution by processor.

11A and 11B are diagrams of different cellular mobile telephone systems capable of supporting various embodiments of the present invention. 11A and 11B illustrate exemplary cellular mobile telephone systems, each having both a mobile station (e.g., a handset) and a base station with installed transceivers (as digital mobile stations and base stations). signal processor (DSP), hardware, software, integrated circuit, and/or part of a semiconductor device). For example, radio networks support second and third generation (2G and 3G) services defined by the International Telecommunication Union (ITU) for International Mobile Telecommunications 2000 (IMT-2000). For explanation purposes, the carrier and channel selection capabilities of the radio network are explained with respect to the cdma2000 architecture. As a third generation version of IS-95, cdma2000 is standardized in 3rd Generation Partnership Project 2 (3GPP2).

The radio network 1100 includes mobile stations 1101 (such as handsets, terminals, stations, units, devices, or other types of interfaces for users (such as "wearable" circuits, etc.)) that communicate with a base station subsystem (BSS) 1103. According to one embodiment of the invention, the radio network supports third generation (3G) services defined by the International Telecommunication Union (ITU) for International Mobile Telecommunications 2000 (IMT-2000).

In this example, BSS 1103 includes base transceiver station (BTS) 1105 and base station controller (BSC) 1107. While a single BTS is shown, it should be understood that multiple BTSs are typically connected to the BSC by, for example, point-to-point links. Each BSS 1103 is linked to a Packet Data Serving Node (PDSN) 1109 through a Transport Control Entity or Packet Control Function (PCF) 1111. Since the PDSN 1109 acts as a gateway to external networks, such as the Internet 1113 or other private user networks 1115, the PDSN 1109 may include an Access, Authorization, and Accounting System (AAA) 1117 to securely determine a user's identity and privileges and track each user activity. The network 1115 includes a network management system (NMS) 1131 linked to one or more databases 1133 accessed through a home agent (HA) 1135 secured by a home AAA 1137.

While a single BSS 1103 is shown, it should be understood that multiple BSSs 1103 are typically connected to a Mobile Switching Center (MSC) 1119. The MSC 1119 provides connectivity to circuit switched networks such as the Public Switched Telephone Network (PSTN) 1121. Similarly, it should also be understood that the MSC 1119 may be connected to other MSCs 1119 on the same network 1100, and/or to other radio networks. A MSC 1119 is typically paired with a Visitor Location Register (VLR) 1123 database that holds temporary information for valid subscribers to that MSC 1119. The data in the VLR 1123 database is largely a copy of the Home Location Register (HLR) 1125 database, which stores detailed subscriber service order information. In some implementations, the HLR 1125 and the VLR 1123 are the same physical database; however, the HLR 1125 may be located at a remote location accessed through, for example, a Signaling System No. 7 (SS7) network. An Authentication Center (AuC) 1127, which contains subscriber-specific authentication data, such as a secret authentication key, is associated with the HLR 1125 to authenticate the subscriber. Furthermore, MSC 1119 is connected to Short Message Service Center (SMSC) 1129, and SMSC 1129 stores short messages and forwards short messages from wireless network 1100 or forwards short messages to wireless network 1100.

During typical operation of a cellular telephone system, BTS 1105 receives and demodulates sets of reverse-link signals from sets of mobile units 1101 conducting telephone calls or other communications. Each reverse link signal received by a given BTS 1105 is processed in that station. The resulting data is forwarded to BSC 1107. BSC 1107 provides call resource allocation and mobility management functions including soft handover cooperation between BTS 1105. BSC 1107 also routes received data to MSC 1119, which in turn provides additional routing and/or switching for interfacing with PSTN 1121. MSC1119 is also responsible for call setup, call termination, inter-MSC handover and management of supplementary services, as well as collection, charging and billing information. Similarly, radio network 1100 sends forward link messages. PSTN 1121 interfaces with MSC 1119. MSC 1119 additionally interfaces with BSC 1107, which in turn communicates with BTS 1105, which modulates sets of forward link signals and sends them to sets of mobile units 1101.

As shown in FIG. 11B , the two key elements of the General Packet Radio Service (GPRS) architecture 1150 are the Serving GPRS Support Node (SGSN) 1132 and the Gateway GPRS Support Node (GGSN) 1134 . Furthermore, the GPRS architecture includes a Packet Control Unit PCU (1136) and a Charging Gateway Functional Unit (CGF) 1138, which is linked to a charging system 1139. A GPRS Mobile Station (MS) 1141 employs a Subscriber Identity Module (SIM) 1143 .

The PCU 1136 is the logical network element responsible for GPRS related functions such as air interface access control, packet scheduling on the air interface, and packet assembly and reassembly. Typically, the PCU 1136 is physically integrated into the BSC 1145; however, it could be combined with the BTS 1147 or the SGSN 1132. SGSN 1132 provides functions equivalent to MSC 1149, including mobility management, security and access control functions, but in the packet switching domain. Furthermore, the SGSN 1132 is connected to the PCU 1136 through, for example, an interface based on frame relay using the BSSGPRS protocol (BSS GP). Although only one SGSN is shown, it should be understood that multiple SGSNs 1131 may be employed and the Service Areas may be divided into corresponding Routing Areas (RAs). The SGSN/SGSN interface allows packets to be tunneled from the old SGSN to the new SGSN when an RA update occurs during an ongoing Personal Development Plan (PDP) context. Any given BSC 1145 typically interfaces with one SGSN 1132, although a given SGSN may serve multiple BSCs 1145. Furthermore, optionally, the SGSN 1132 is connected to the HLR 1151 through an SS7-based interface using the GPRS-enhanced Mobile Application Part (MAP), or to the MSC 1149 through an SS7-based interface using the Signaling Connection Control Part (SCCP). The SGSN/HLR interface allows the SGSN 1132 to provide location updates to the HLR 1151 within the SGSN service area and to obtain GPRS-related subscription information. The SGSN/MSC interface enables coordination between circuit switched services and packet data services such as paging subscribers for voice calls. Finally, the SGSN 1132 interfaces with the SMSC 1153 to enable short messaging functionality on the network 1150.

The GGSN 1134 is a gateway to external packet data networks such as the Internet 1113 or other private user networks 1155. The network 1155 includes a network management system (NMS) 1157 linked to one or more databases 1159 accessed through the PDSN 1161. The GGSN 1134 assigns Internet Protocol (IP) addresses and can also authenticate users hosting remote user dial-in authentication services. The firewall located at GGSN 1134 also performs firewall functions to restrict authorization-free traffic. While only one GGSN 1134 is shown, it should be understood that a given SGSN 1132 may interface with one or more GGSNs 1133 to allow user data to be tunneled between the two entities and into and out of the network 1150. When the external data network initiates a session on the GPRS network 1150, the GGSN 1134 asks the HLR 1151 for the SGSN 1132 currently serving the MS 1141.

The BTS 1147 and BSC 1145 manage the radio interface, including controlling which mobile station (MS) 1141 has access to the radio channel and when. These elements actually relay messages between MS 1141 and SGSN 1132. The SGSN 1132 manages communications with the MS 1141, sending and receiving data and keeping track of its location. SGSN 1132 also registers MS 1141, authenticates MS 1141, and encrypts data sent to MS 1141.

12 is a diagram of exemplary components of a mobile station (eg, handset) capable of operating in the systems of FIGS. 11A and 11B in accordance with an embodiment of the present invention. In general, radio receivers are often defined in terms of front-end and back-end characteristics. The front end of the receiver includes all radio frequency (RF) circuitry, while the back end includes all baseband processing circuitry. Pertinent internal components of the phone include a main control unit (MCU) 1203, a digital signal processor (DSP) 1205, and a receiver/transmitter unit including a microphone gain control unit and a speaker gain control unit. The main display unit 1207 provides a display to the user supported by various applications and mobile station functions. The audio function circuit 1209 includes a microphone 1211 and a microphone amplifier that amplifies a voice signal output from the microphone 1211 . The amplified voice signal output from the microphone 1211 is fed to an encoder/decoder (CODEC) 1213 .

The radio section 1215 amplifies power and converts frequency to communicate with a base station included in a mobile communication system (such as the systems of FIGS. 11A and 11B ) via an antenna 1217 . A power amplifier (PA) 1219 and transmitter/modulation circuitry are operatively responsive to the MCU 1203 with an output from the PA 1219 coupled to a duplexer 1221 or a circulator or antenna switch, as is known in the art.

In use, a user of the mobile station 1201 speaks into the microphone 1211 and his or her voice is converted to an analog voltage along with detected background noise. Then, the analog voltage is converted into a digital signal by an analog-to-digital converter (ADC) 1223 . Control unit 1203 routes data signals to DSP 1205 for processing therein, such as vocoding, channel coding, encryption and interleaving. In an exemplary embodiment, the processed speech signal is encoded by a unit not separately shown using the cellular transmission protocol of Code Division Multiple Access (CDMA), which is described in TIA/EIA/IS-95- A is described in detail in the Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular Systems; which is fully incorporated herein by reference.

The encoded signal is then routed to an equalizer 1225 to compensate for frequency-dependent impairments (eg, phase and amplitude distortion) that occur during transmission over the air. After equalizing the bit stream, the modulator 1227 combines the signal with the RF signal generated in the RF interface 1229 . Modulator 1227 generates a sine wave through frequency and phase modulation. To prepare the signal for transmission, upconverter 1231 combines the sine wave output from modulator 1227 with another sine wave generated by synthesizer 1233 to achieve the desired transmission frequency. The signal is then sent through the PA 1219 to boost the signal to an appropriate power level. In a practical system, PA 1219 acts as a variable gain amplifier whose gain is controlled by DSP 1205 based on information received from network base stations. The signal is then filtered within duplexer 1221 and optionally sent to antenna coupler 1235 for impedance matching to provide maximum power transfer. Finally, the signal is sent to the local base station via antenna 1217 . An automatic gain control (AGC) may be provided to control the receiver's final stage gain. The signal may be forwarded from the receiver to a remote telephone, which may be another cellular telephone, other mobile telephone, or a land line connected to the Public Switched Telephone Network (PSTN) or other telephone network. Voice signals transmitted to the mobile station 1201 are received via antenna 1217 and immediately amplified by a low noise amplifier (LNA) 1237 . The downconverter 1239 reduces the carrier frequency, while the demodulator 1241 removes the RF, leaving only the digital bit stream. The signal then passes through the equalizer 1225 and is processed by the DSP 1205. A digital-to-analog converter (DAC) 1243 converts the signal, and the resulting output is sent to the user through a speaker 1245, and all operations are under the control of the main control unit (MCU) 1203, which can be controlled by Implemented as a central processing unit (CPU) (not shown).

The MCU 1203 receives various signals, including input signals from the keyboard 1247. The MCU 1203 delivers the display command and the switching command to the display 1207 and the voice output switching controller respectively. Further, the MCU 1203 exchanges information with the DSP 1205 and can access the optionally included SIM card 1249 and memory 1251. In addition, the MCU 1203 performs various control functions required by the station. Depending on the implementation, the DSP 1205 can perform any of a variety of conventional digital processing functions on the speech signal. In addition, the DSP 1205 determines the background noise level of the local environment from the signal detected by the microphone 1211 and sets the gain of the microphone 1211 to a level selected to compensate for the natural tendencies of the user of the mobile station 1201.

The codec 1213 includes an ADC1223 and a DAC1243. The memory 1251 stores various data including incoming call tone data, and can store other data including, for example, music data received via the Internet. A software module may reside in RAM memory, flash memory, registers, or any other form of writable storage medium known in the art. The memory device 1251 may be, but is not limited to, a memory device, CD, DVD, ROM, RAM, EEPROM, optical memory, or any other non-volatile storage medium capable of storing digital data.

An optionally included SIM card 1249 carries important information such as cell phone number, operator offers, subscription details and security information, for example. The SIM card 1249 is primarily used to identify the mobile station 1201 on the radio network. Card 1249 also contains memory for storing personal phone number registration, text messages and user specific mobile station settings.

13 illustrates an exemplary enterprise network, which may be any type of data communications network utilizing packet-based and/or cellular-based technologies (eg, Asynchronous Transfer Mode (ATM), Ethernet, IP-based, etc.). Enterprise network 801 provides connectivity to wired nodes 1303 and wireless nodes 1305-1309 (fixed or mobile), all configured to perform the processes described above. Enterprise network 1301 may communicate with various other networks, such as WLAN network 1311 (e.g., IEEE 802.11), CDMA2000 cellular network 1313, telephone network 1315 (e.g., PSTN), or public data network 1317 (e.g., the Internet).

While the invention has been described in connection with a number of embodiments and implementations, the invention is not so limited but covers various obvious modifications and equivalent arrangements, which fall within the purview of the appended claims. Although features of the invention are expressed in certain combinations among the claims, it should be understood that these features can be arranged in any combination and order.

Claims (32)

1. method comprises:

Processing is to the request of the positioning position information of terminal, and described terminal is configured to and exempts from authorize the mobile access network operation, describedly exempts to authorize mobile access network to have connectivity with radio circuit, to be used to provide the position location service; And

Generate data-message, described data-message is stipulated described positioning position information, wherein, according to exempting to authorize the signaling protocol of mobile access network compatibility to generate described data-message and described request with described, the reliable payment of described data-message is provided by transport layer protocol.

2. the method for claim 1, wherein describedly exempt to authorize mobile access network to determine whether described request needs to set up audio call, and if described request do not stipulate described audio call, then do not set up bearer path.

3. method as claimed in claim 2, wherein, described bearer path comprises the Media Stream according to real-time protocol (RTP) RTP, and described transport layer protocol comprises transmission control protocol TCP, described signaling protocol comprises exempts to authorize layer 3 agreement, and the reliable payment of described data-message is to be performed under the situation of exempting to authorize layer 2 protocol not use the affirmation signaling.

4. method as claimed in claim 2, wherein, described audio call is corresponding with emergency service call.

5. the method for claim 1, wherein generate described request by described terminal.

6. the method for claim 1, wherein, describedly exempt to authorize mobile access network to comprise that the location determines entity PDE and network controller, wherein said location determines that entity is configured to receive described data-message, and described network controller is configured to communicate by letter with mobile switching centre in described radio circuit.

7. the method for claim 1, wherein describedly exempt to authorize mobile access network to be configured to move to insert the UMA framework and operate, and described radio circuit comprise and is configured to the cellular network that uses spread spectrum to communicate according to exempting to authorize.

8. device comprises:

Processor, it is configured to handle the request to the position location,

Wherein, described processor be further configured into: generate data-message, described data-message is given for the positioning position information of transmitting on the mobile access network exempting to authorize, describedly exempt to authorize mobile access network to have connectivity with radio circuit, to be used to provide the position location service, described data-message and described request are that basis exempts to authorize the signaling protocol of mobile access network compatibility to generate with described, and the reliable payment of described data-message is provided by transport layer protocol.

9. device as claimed in claim 8 wherein, describedly exempts to authorize mobile access network to determine whether described request needs to set up audio call, and and if only if described request is just set up bearer path when stipulating described audio call.

10. device as claimed in claim 9, described bearer path comprises the Media Stream according to real-time protocol (RTP) RTP, and described transport layer protocol comprises transmission control protocol TCP, described signaling protocol comprises exempts to authorize layer 3 agreement, and the reliable payment of described data-message is to be performed under the situation of exempting to authorize layer 2 protocol not use the affirmation signaling.

11. device as claimed in claim 9, wherein, described audio call is corresponding with emergency service call.

12. device as claimed in claim 8 wherein, generates described request by described terminal.

13. device as claimed in claim 8, wherein, describedly exempt to authorize mobile access network to comprise that the location determines entity PDE and network controller, described location determines that entity is configured to receive described data-message, and described network controller is configured to communicate by letter with mobile switching centre in described radio circuit.

14. device as claimed in claim 8 wherein, describedly exempts to authorize mobile access network to be configured to move to insert the UMA framework and operate according to exempting to authorize, and described radio circuit comprises and is configured to the cellular network that uses spread spectrum to communicate.

15. a method comprises:

Receive message to initiate the position location service, the form of described message according to the signaling protocol of exempting to authorize the mobile access network compatibility, wherein, describedly exempt to authorize mobile access network to have connectivity with radio circuit, to be used to provide the position location service;

Generate service request in response to the described message that receives, to be used to be transferred to described radio circuit;

Receive request for allocation from described radio circuit, with the Resource Allocation in Networks that is used for exempting to authorize mobile access network described; And

Generate data-message, the positioning position information of described data-message prescribed terminal, wherein, described data-message generates according to above-mentioned signaling protocol, and the reliable payment of described data-message is provided by transport layer protocol.

16. method as claimed in claim 15 further comprises:

Determine whether received message needs to set up audio call, and if the described message that receives do not stipulate described audio call, then do not set up bearer path.

17. method as claimed in claim 16, wherein, described bearer path comprises the Media Stream according to real-time protocol (RTP) RTP, and described transport layer protocol comprises transmission control protocol TCP, described signaling protocol comprises exempts to authorize layer 3 agreement, and the reliable payment of described data-message is to be performed under the situation of exempting to authorize layer 2 protocol not use the affirmation signaling.

18. method as claimed in claim 16, wherein, described audio call is corresponding with emergency service call.

19. method as claimed in claim 15 wherein, generates the described message that receives by described terminal.

20. method as claimed in claim 15, wherein, describedly exempt to authorize mobile access network to comprise that the location determines entity PDE and network controller, described location determines that entity is configured to provide described positional information, and described network controller is configured to communicate by letter with mobile switching centre in described radio circuit.

21. method as claimed in claim 15 wherein, describedly exempts to authorize mobile access network to be configured to move to insert the UMA framework and operate according to exempting to authorize, and described radio circuit comprises and is configured to the cellular network that uses spread spectrum to communicate.

22. a device comprises:

Processor, it is configured to: receive message to initiate the position location service, the form that described message has according to the signaling protocol of exempting to authorize the mobile access network compatibility, wherein, describedly exempt to authorize mobile access network to have connectivity with radio circuit, to be used to provide the position location service

Wherein, described processor be further configured for: generate service request in response to the described message that receives, to be used to be transferred to described radio circuit; And receive request for allocation from described radio circuit, with the Resource Allocation in Networks that is used for exempting to authorize mobile access network described,

Wherein, described processor be further configured into: generate data-message, the positioning position information of described data-message prescribed terminal, described data-message generates according to signaling protocol, the reliable payment of described data-message is provided by transport layer protocol.

23. device as claimed in claim 22, wherein, described processor be further configured for: determine whether received message related with audio call, and if the described message that receives do not stipulate described audio call, then do not set up bearer path.

24. device as claimed in claim 23, wherein, described bearer path comprises the Media Stream according to real-time protocol (RTP) RTP, and described transport layer protocol comprises transmission control protocol TCP, described signaling protocol comprises exempts to authorize layer 3 agreement, and the reliable payment of described data-message is to be performed under the situation of exempting to authorize layer 2 protocol not use the affirmation signaling.

25. device as claimed in claim 23, wherein, described audio call is corresponding with emergency service call.

26. device as claimed in claim 22 wherein, generates the described message that receives by described terminal.

27. device as claimed in claim 22 further comprises:

Communication interface, it is configured to: described positional information is provided, wherein, describedly exempts to authorize mobile access network to comprise network controller, described network controller is configured to communicate by letter with mobile switching centre in described radio circuit.

28. device as claimed in claim 22 wherein, describedly exempts to authorize mobile access network to be configured to move to insert the UMA framework and operate according to exempting to authorize, and described radio circuit comprises and is configured to the cellular network that uses spread spectrum to communicate.

29. a method comprises:

Receive according to exempting to authorize and move the initiation message that inserts UMA layer 3 agreement, with the position location service of initiating to authorize mobile access network and cellular communications networks to support by exempting from;

Determine the whether regulation urgent call of described initiation message;

Only when the described urgent call of described initiation message specifies, just be established to the audio path of described terminal; And

Insert the UMA layer 2 protocol and confirm to receive under the situation of data-message and generate described data-message not using to exempt to authorize to move, described data-message is given for the positioning position information that is transferred to terminal, wherein, described data-message generates according to UMA layer 3 agreement.

30. method as claimed in claim 29 wherein, uses transmission control protocol TCP that the reliable transmission of described data-message to described terminal is provided.

31. a method comprises:

From mobile switching centre's paging receiving request of cellular network, described paging request is initiated to be served by the position location of exempting to authorize mobile access network and cellular communications networks to support; And

Insert UMA layer 3 agreement generation data-message according to exempting to authorize to move,, be used to be transferred to terminal, wherein, provide the reliable payment of described data-message by the transport layer protocol that is different from the UMA layer 2 protocol to obtain the positioning position information of terminal.

32. method as claimed in claim 31, wherein, described transport layer protocol comprises transmission control protocol TCP.

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