CN111193999B

CN111193999B - Information transmission method and device

Info

Publication number: CN111193999B
Application number: CN202010006446.0A
Authority: CN
Inventors: 张燕; 武海峰; 张咏霞; 邓翠芳; 金连成; 陈伟
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2021-11-02
Anticipated expiration: 2040-01-03
Also published as: CN111193999A

Abstract

The disclosure relates to an information transmission method and an information transmission device, wherein the method comprises the following steps: the SUPL message, which is used to locate the terminal, is transmitted using a short message service system SMS. Through the method, the SUPL message can be transmitted by using the SMS when the terminal is positioned based on the SUPL, so that the problem that the terminal cannot be positioned by using the SUPL under the condition that the terminal cannot be connected to a network is avoided.

Description

Information transmission method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to an information transmission method and apparatus.

Background

With the popularization of mobile terminal applications, a mobile terminal needs to be located in more and more scenes, and a Location function in a mobile communication system needs to be implemented generally through two ways, namely, a User plane (User plane) and a Control plane (Control plane), however, in the related art, whether the mobile terminal is located based on the User plane or the Control plane, the mobile terminal needs to be connected to a TCP/IP (Transmission Control Protocol/Internet Protocol) network, when the TCP/IP network has poor signals and the network cannot be connected, it is difficult to implement the Location of the mobile terminal, and for the Location through the Control plane, a base station end needs to support an LMU (Location Measurement Unit) function, and the cost of continuous investment along with network upgrade is relatively high. Therefore, in the related art, when the network condition is not good, the mobile terminal is difficult to be positioned, and the cost for positioning is high.

Disclosure of Invention

In view of the above, the present disclosure proposes an information transmission method applied to a secure user plane SUPL location platform SLP, the method comprising:

the SUPL message, which is used to locate the terminal, is transmitted using a short message service system SMS.

In one possible implementation, the SUPL message includes a SUPL location initialization message for initiating a positioning protocol session, the SUPL message transmitted using a short message service system SMS, including:

the SUPL location initialization message is received using SMS.

In one possible embodiment, the SUPL location initialization message includes location capability information of the terminal, request assistance information, and initial location information, the location capability information indicating location capabilities of the terminal, the request assistance information indicating assistance information requested by the terminal, the assistance information indicating positioning, the initial location information indicating an approximate location of the terminal, the method further comprising:

determining auxiliary data according to the positioning capacity information, the request auxiliary information and the initial position information;

the SUPL message transmitted by using the SMS comprises the following steps:

the assistance data is transmitted using SMS.

In one possible embodiment, the transmitting the SUPL message using the short message service system SMS includes:

the SUPL message is transmitted using SMS over a circuit switched domain, CS, and/or a packet switched domain, PS.

In one possible implementation, the SUPL message includes a SUPL message identifier indicating that the SUPL message is applied to a SUPL service.

In one possible embodiment, the SUPL message further includes at least one of a SUPL initialization message, a SUPL location message, a SUPL end message, a SUPL start message, a SUPL response message, a SUPL reinitialization message, a SUPL terminal initialization message, a SUPL notification response message, a SUPL trigger start message, a SUPL trigger response message, a SUPL trigger stop message, a SUPL report message, a SUPL authentication request message, and a SUPL authentication response message, the SUPL initialization message and the SUPL start message being used to request the establishment of a SUPL session, the SUPL location message being used to carry positioning information, the SUPL end message being used to end a SUPL session, the SUPL response message being used to respond to the SUPL start message, the SUPL reinitialization message being used to restart a general purpose SUPL session when a preset condition is satisfied, the SUPL terminal initialization message being used to position other terminals, the SUPL notification message is used for notification according to a current location of a terminal or in a session info query "re-notification" scheme, the SUPL notification response message is used for responding to the SUPL notification message, a SUPL trigger start message is used for triggering a SUPL session, a SUPL trigger response message is used for responding to the trigger start message, a SUPL trigger stop message is used for ending a SUPL trigger session, a SUPL report message is used for reporting a location estimate and/or a network measurement result, and the SUPL authentication request message and the SUPL authentication response message are used for authentication in a non-proxy mode.

According to another aspect of the present disclosure, there is provided an information transmission method applied to a terminal supporting Secure User Plane Location (SUPL), the method including:

transmitting SUPL information by using short message service system SMS under the condition that TCP/IP network connection can not be established; or

In case of transmitting the SUPL message using the SMS with a higher priority than the TCP/IP network, the SUPL message is transmitted using the short message service system SMS.

the SUPL location initialization message is sent using SMS.

determining positioning capacity information, request auxiliary information and initial position information of a terminal;

writing the location capability information, request assistance information, initial location information to the SUPL location initialization message.

In one possible embodiment, the SUPL message further includes at least one of a SUPL initialization message, a SUPL location message, a SUPL end message, a SUPL start message, a SUPL response message, a SUPL reinitialization message, a SUPL terminal initialization message, a SUPL notification response message, a SUPL trigger start message, a SUPL trigger response message, a SUPL trigger stop message, a SUPL report message, a SUPL authentication request message, and a SUPL authentication response message, the SUPL initialization message and the SUPL start message being used to request the establishment of a SUPL session, the SUPL location message being used to carry positioning information, the SUPL end message being used to end a SUPL session, the SUPL response message being used to respond to the SUPL start message, the SUPL reinitialization message being used to restart a general purpose SUPL session when a preset condition is satisfied, the SUPL terminal initialization message being used to position other terminals, the SUPL notification message is used for notification according to a current location of a terminal or in a session info query "re-notification" scheme, the SUPL notification response message is used for responding to the SUPL notification message, a SUPL trigger start message is used for triggering a SUPL session, a SUPL trigger response message is used for responding to the trigger start message, a SUPL trigger stop message is used for ending a SUPL trigger session, a SUPL report message is used for reporting a location estimation and/or a network measurement result, and the SUPL authentication request message and the SUPL authentication response message are used for authentication in a non-proxy mode.

According to another aspect of the present disclosure, there is provided an information transmission apparatus applied to a secure user plane SUPL location platform SLP, the apparatus comprising:

a first transmission module for transmitting a SUPL message for positioning a terminal using a short message service system (SMS).

the SUPL location initialization message is received using SMS.

In one possible embodiment, the SUPL location initialization message includes location capability information of the terminal, request assistance information, and initial location information, the location capability information indicating location capabilities of the terminal, the request assistance information indicating assistance information requested by the terminal, the assistance information indicating positioning, the initial location information indicating an approximate location of the terminal, the apparatus further comprising:

the first determining module is used for determining auxiliary data according to the positioning capacity information, the request auxiliary information and the initial position information;

the SUPL message transmitted by using the SMS comprises the following steps:

the assistance data is transmitted using SMS.

According to another aspect of the present disclosure, there is provided an information transmission apparatus applied to a terminal supporting Secure User Plane Location (SUPL), the apparatus including:

a second transmission module for transmitting a SUPL message for positioning the terminal using a short message service system (SMS).

the SUPL location initialization message is sent using SMS.

the second determining module is used for determining the positioning capability information, the request auxiliary information and the initial position information of the terminal;

According to another aspect of the present disclosure, there is provided a multicast management apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method.

The SUPL message can be transmitted by using the SMS when the terminal is positioned based on the SUPL, so that the problem that the terminal cannot be positioned by using the SUPL under the condition that the terminal cannot be connected to a network is avoided.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present disclosure.

Fig. 2 shows a flow chart of an information transmission method according to an embodiment of the present disclosure.

Fig. 3a shows a schematic diagram of an LSP-initiated positioning procedure according to an embodiment of the present disclosure.

Fig. 3b shows a schematic diagram of a terminal-initiated positioning procedure according to an embodiment of the present disclosure.

Fig. 4 shows a flow chart of an information transmission method according to an embodiment of the present disclosure.

Fig. 5 illustrates a schematic diagram of a SUPL architecture according to an embodiment of the present disclosure.

Fig. 6 shows a schematic diagram of a communication system according to an embodiment of the present disclosure.

Fig. 7 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Fig. 8 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Fig. 9 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Fig. 10 shows a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

The embodiments provided in the embodiments of the present disclosure may be applied to a 5G (5generation) communication system, may also be applied to a 2G, 4G, or 3G communication system, may also be applied to a satellite communication system, and may also be applied to various communication systems of subsequent evolution, such as 6G, 7G, and the like.

The disclosed embodiments are also applicable to different network architectures including, but not limited to, relay network architectures, dual link architectures, and Vehicle-to-event architectures.

The 5G CN according to the embodiment of the present disclosure may also be referred to as a New Core (New Core), a 5G New Core, a Next Generation Core (NGC), or the like. The 5G-CN is set independently of an existing core network, such as an Evolved Packet Core (EPC).

SUPL in the embodiments of the present disclosure denotes Secure User Plane Location (Secure User Plane Location), and an SLP (SUPL Location Platform) may be configured as a network element device, and may be, for example, a Base Station (BS), which may also be referred to as a base station device, and is an apparatus deployed in a radio access network to provide a wireless communication function. For example, the device providing the base station function in the 2G network includes a Base Transceiver Station (BTS) and a Base Station Controller (BSC), the device providing the base station function in the 3G network includes a node B (NodeB) and a Radio Network Controller (RNC), the device providing the base station function in the 4G network includes an evolved node B (eNB), the device providing the base station function in the Wireless Local Area Network (WLAN) is an access point (access point, AP), the device providing the base station function in the 5G New Radio (New Radio, NR) includes a node B (gnb) that continues to evolve, and the device providing the base station function in a future New communication system, etc.

The terminal in the embodiments of the present disclosure may also be referred to as a User Equipment (ue), or may also be referred to as an set (SUPL Enabled terminal), and the terminal may support SUPL to implement positioning using SUPL.

In one example, a terminal can refer to various forms of an access terminal, subscriber unit, subscriber Station, Mobile Station (MS), remote Station, remote terminal, Mobile device, user terminal, terminal device (terminal equipment), wireless communication device, user agent, or user equipment. The user equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a user equipment in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., which is not limited in this disclosure.

Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present disclosure. The embodiments of the present disclosure may be applied to a communication system as shown in fig. 1. In the embodiment of the present disclosure, a unidirectional communication link from the network element device 12 to the terminal 14 is defined as a downlink DL, data transmitted on the downlink is downlink data, and a transmission direction of the downlink data is referred to as a downlink direction; and the unidirectional communication link from the terminal 14 to the network element device 12 is an uplink UL, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is referred to as an uplink direction.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this document indicates that the former and latter related objects are in an "or" relationship.

The term "connected" in the embodiments of the present disclosure refers to various connection methods such as direct connection or indirect connection, so as to implement communication between devices.

The expression "network" and "system" appearing in the embodiments of the present disclosure are the same concept, and the communication system is a communication network. The term "connected" in the embodiments of the present disclosure refers to various connection manners, such as direct connection or indirect connection, for example, different devices are connected through a communication interface, and is not limited at all.

By way of example, reference may be made to terms that may be present in embodiments of The present disclosure, OMA (Open Mobile Alliance, OMA, Open Mobile Alliance), SIP (Session Initiation Protocol), PAP (Push Access Protocol), LPP (LTE Positioning Protocol), LPPe (OMA LPP Extensions), pop (WAP Push Over The Air Protocol), QoP (Quality of Positioning), LMU (Location Measurement Unit), WAP (Wireless Application Protocol), URL (Uniform Resource Locator ), UDP (User data Protocol, User data packet Protocol), SLC (SLC), suplocation Center Location Center (SLC), location calculation center), MT (Mobile Terminated refers to short message service received by a handset user).

The development trend of the positioning function on the terminal is more and more common, and the real-time position information is easy to obtain. The user plane location protocol SUPL specifies that the transport protocol between the SET and SLP (SET and SLC/SPC in non-proxy mode) is TCP/IP. If the terminal already has the location information, then when receiving the SUPL INIT message of the OMA Push or MT SMS, it needs to establish TCP/IP connection first, and then reports the location information to the network (SLP). The location information will not be reported in time in the following cases:

a, the SET terminal closes the data service or the data service is unavailable for some reason

b, the SET terminal cannot support both circuit switched CS and packet switched PS services, while the terminal is in circuit switched CS service for a long time. For example, during a telephone call under the GSM network or during an emergency call, the terminal cannot transmit TCP/IP data through the GPRS network. This will result in no possibility of positioning using SUPL.

Based on the above problem, the embodiments of the present disclosure provide an information transmission method.

Referring to fig. 2, fig. 2 is a flowchart illustrating an information transmission method according to an embodiment of the disclosure.

The method is applied to a secure user plane SUPL location platform SLP, as shown in fig. 2, and comprises:

step S11, transmitting a SUPL Message using a Short Message Service (SMS), the SUPL Message being used to locate the terminal.

Through the method, the SUPL message can be transmitted by using the SMS when the terminal is positioned based on the SUPL, so that the problem that the terminal cannot be positioned by using the SUPL under the condition that the terminal cannot be connected to a network is avoided.

It should be noted that the SUPL message may include various messages communicated between the SLP and the SET, such as at least one of a SUPL location initialization message (SUPL POS INIT), a SUPL initialization message (SUPL INIT), a SUPL location message (SUPL POS), a SUPL end information (SUPL POS), a SUPL START information (SUPL START), a SUPL RESPONSE information (SUPL RESPONSE), a SUPL reinitialization message (SUPL REINIT), a SUPL terminal initialization message (SUPL SET INIT), a SUPL notification message (SUPL NOTIFY), a SUPL notification RESPONSE message (SUPL NOTIFY RESPONSE), a SUPL trigger START message (SUPL TRIGGERED START), a SUPL trigger RESPONSE message (TRIL GGERERESPONSE), a SUPL REPORT message (SUPL REPORT), a SUPL authentication request message (SUPL AUREQ), a SUPL authentication RESPONSE message (SUPL INITIATION RESP), and an SUPL initialization message (SUPL POSITION) for initiating the location protocol Session (SUPL) initiation protocol, the SUPL initialization message and the SUPL Start message are used to request establishment of a SUPL Session, the SUPL location message is used to carry positioning information, the SUPL end information is used to end the SUPL Session, the SUPL response message is used to respond to the SUPL Start message, the SUPL re-initialization message is used to re-start a General SUPL Session (GSS) when a preset condition is satisfied (SLP wants no secure connection between SLP and SET during GSS), the SUPL terminal initialization message is used to locate other terminals, the SUPL notification message is used to notify according to a current location of a terminal or in a Session info query "Re-Notification" scheme, the SUPL notification response message is used to respond to the SUPL notification message, the SUPL trigger Start message is used to trigger a SUPL Session, the SUPL trigger response message is used to respond to the trigger Start message, A SUPL trigger stop message for ending a SUPL trigger session, a SUPL report message for reporting a location estimate and/or a network measurement result, the SUPL authentication request message and the SUPL authentication response message for authentication in a non-proxy mode. The above description of the SUPL messages is exemplary, and for the detailed description of each message, reference is made to OMA-TS-ULP-V2.0.4 or other versions such as V3.0.

Moreover, all types of SUPL messages can be transmitted by using the information transmission method provided by the embodiment of the present disclosure, including SUPL parameters corresponding to the current version and the later version, which is not limited in the embodiment of the present disclosure.

The communication between the SLP and the SET may be LSP initiated or SET initiated, and the present disclosure is not limited thereto, and the information transmission method will be described with reference to the examples below.

Referring to fig. 3a, fig. 3a is a schematic diagram illustrating an LSP-initiated positioning procedure according to an embodiment of the present disclosure.

In one possible implementation, the SUPL message may include a SUPL initialization message (SUPL INIT message) that may be used to request establishment of a SUPL session.

In one example, as shown in fig. 3a, the SLP may send a SUPL initialization message by SMS requesting to establish a SUPL session with the SET to enable positioning of the SET.

In one example, the SUPL initialization message may include positioning method (posmethod) information, SLP capability information (slpcapabilities), SLP address information (e-SLPAddress), location indication information (Notification), and the like, wherein:

in one example, the positioning method information may indicate a positioning method previously configured by the SLP for the SET, which may include, for example, a positioning method based on a satellite system including a global navigation satellite system such as the Global Positioning System (GPS), the european galileo system, the russian Glonass system, or some other satellite positioning system. For example, the aforementioned positioning methods may be applied or otherwise enabled for use in various regional systems, such as quasi-zenith satellite system (QZSS) above japan, Indian Regional Navigation Satellite System (IRNSS) above india, beidou above china, and so forth.

In one example, the SLP capability information may also indicate positioning protocols supported by the SLP, which may include, for example, any of LPP, LPPe, LPP/LPPe, RRC, RRLP, TIA-801, or some other protocol, and in some implementations, more than one positioning protocol (e.g., LPP and LPPe) may be used.

In one example, assuming that the positioning method information is SET to "no position" (no position), when the SET receives the SUPL initialization message, it may respond with a SUPL END message carrying an authentication procedure, for example, information such as "access accepted" (access granted) or "access denied" (access denied) may be carried in the SUPL END message. Thus, the SET can respond quickly to the SLP.

In one example, the SLP address information may indicate address information for the SLP, which may include, for example, an IP address for the SLP.

In one example, the location indication information may indicate the location of emergency services as needed or whether a SET needs to be notified or authenticated as required by regulatory requirements.

Of course, the above description of the information or information carried in the SUPL initialization message is exemplary and should not be considered as a limitation of the present disclosure, and one skilled in the art may set the information as needed or according to the provisions of the SUPL protocol (e.g., OMA-TS-ULP-V3.0).

In one possible implementation, the SUPL message may include a SUPL location initiation message (SUPL POS INIT), which may be used to initiate a positioning protocol session (positioning protocol session), and when the SUPL session is established, the SET and the SLP may communicate and interact with each other to transmit the SUPL message to enable positioning of the SET.

In one example, as shown in fig. 3a, the step S11 of transmitting the SUPL message using the short message service system SMS may include:

the SUPL location initialization message is received using SMS.

In one example, the SUPL initialization message may be processed when the SET receives the SUPL initialization message, e.g., the SET may send the SUPL location initialization message via SMS to establish a SUPL session.

In one example, the SUPL location initialization message may include initial location information (location ID) of the SET, location capability information (SET Capabilities), request Assistance information (Requested Assistance Data), and the like

In one example, the SET writes the location information as initial location information into the SUPL location initialization message if it stores a current approximate location (which may be coarse, e.g., xx city xx route).

In one example, the positioning capability information may represent positioning methods that the SET may support, which may include, for example, positioning methods based on a system including a global navigation satellite system such as the Global Positioning System (GPS), the european galileo system, the russian Glonass system, or some other satellite positioning system.

Of course, the SUPL location initialization message may also include other information, such as a positioning protocol supported by the SET, and the embodiment of the present disclosure is not limited thereto.

In one example, the SET may SET the request assistance information as needed.

As shown in fig. 3a, if the technical solution of the embodiment of the present disclosure is not adopted, the SET needs to establish a data connection (e.g., a TCP/IP-based network connection) with the SLP to implement communication with the SLP when receiving the SUPL initialization message, and in a case that the network of the SET is poor or the network connection with the SLP cannot be established for other reasons, the SET cannot communicate with the SLP to implement positioning, and it takes a lot of time to establish the network connection between the SET and the SLP, which is inefficient. The information transmission method provided by the embodiment of the disclosure can transmit the SUPL message through the SMS, so as to avoid the problems of positioning failure and low communication efficiency that occur when networking is impossible in the related art.

In one example, when the SLP receives the SUPL location initialization message, the SLP can determine assistance data to assist the SET in positioning based on the SET's location capability information.

In one possible embodiment, the method may further include:

and determining Auxiliary Data (AD) according to the positioning capability information, the request auxiliary information and the initial position information, wherein the AD is used for positioning.

Of course, the SUPL location initialization message may further include other information, and the SLP may determine assistance data according to the location capability information, the request assistance information, the initial location information, and the other information, and send the assistance data to the SET.

The assistance data may be any data used for position determination, and may include different assistance data according to different positioning capability information of the terminal, for example, for a-GPS positioning, the assistance data may include almanac data, ephemeris data, and the like, and of course, for other positioning methods, the assistance data may include other data, and the disclosure is not limited thereto.

In one example, the step S11 of transmitting the SUPL message using the short message service system SMS may include:

the assistance data is transmitted using SMS.

In one example, the terminal may support multiple positioning methods, that is, multiple positioning capabilities are included, if the positioning capability information sent by the SET to the SLP is more, the SLP needs to determine assistance data corresponding to multiple positioning methods and send the assistance data through the SMS, however, the sending capability of the SMS is limited, and a large amount of assistance data cannot be transmitted in one SMS transmission, so the SLP may determine the assistance data according to the positioning capability information, for example, may determine the positioning method according to priority, or determine the assistance data according to a preferred positioning method of the SET, and thus, the SLP may avoid transmission failure or efficiency reduction caused by needing to send a large amount of assistance data in one SMS transmission. And, considering SUPL service characteristics, transmitting SUPL messages based on SMS is also superior in time to transmitting SUPL messages based on TCP/IP data networks, thereby improving the real-time of positioning.

In one possible implementation, the SUPL message may comprise a SUPL location message, which is used to carry positioning information.

In one example, the SLP may write assistance data into a SUPL location message and send to the SET via SMS.

Of course, when the SET establishes a SUPL session with the SLP, interaction between the SET and the SLP can be achieved through SMS, for example, as shown in FIG. 3a, the SLP can send a SUPL location message to the SET to indicate to the SET or provide assistance data to the SET; the SET may also send a SUPL location message to the SLP requesting the SET to provide assistance information or feedback location information as needed.

The interaction process between the SLP and the SET and the specific implementation manner of the SUPL location message are not limited in the embodiments of the present disclosure, and those skilled in the art may refer to the relevant protocol or SET the information included in the SUPL location message as needed.

In one possible implementation, the SUPL location message may also include a SUPL END message (SUPL END), as shown in fig. 3a, which the SLP may send to inform that the SET will not start further positioning procedures and that the SUPL session is ended.

Of course, the SET may also send a SUPL end message to the SLP to inform the SLP that no further positioning procedures are started and the SUPL session is ended, which is not limited in this disclosure.

The positioning process initiated by the SLP is described above, and the SUPL message is transmitted by the SMS according to the embodiment of the present disclosure, so that the problem that the SET cannot be positioned when the SET and the SLP cannot be networked can be avoided, and the SUPL positioning by the SMS can improve the communication efficiency, save the time cost, and improve the user experience.

Of course, the above description of the positioning procedure between the SLP initiated and SET is exemplary, and the introduction of the SUPL message is also exemplary and should not be considered as limiting to the present disclosure, and in other embodiments, the SUPL message may include others, which may be SET or determined by reference to related protocols as desired by those skilled in the art.

The embodiment of the present disclosure is described above by taking an SLP initiated positioning procedure as an example, and an SET initiated positioning procedure is exemplarily described below.

Referring to fig. 3b, fig. 3b is a schematic diagram illustrating a positioning procedure initiated by a terminal according to an embodiment of the disclosure.

In one possible implementation, the SUPL message may further include a SUPL initiation message for requesting establishment of a SUPL session.

In one example, as shown in fig. 3b, when the SET needs to perform positioning, a SUPL start message may be sent through SMS to request establishment of a SUPL session.

In one example, the SUPL start message may include location capability information of the SET to indicate a location method supported by the SET (e.g., SET-assisted a-GPS, SET-based a-GPS, etc.) and/or a location protocol associated with the location method (e.g., RRLP/RRC/TIA-801/LPP/LPPe, etc.).

In one possible implementation, the SUPL message may further include a SUPL response message for responding to the SUPL start message. The SUPL response message may include a positioning method configured by the SLP for the SET according to the positioning capability information in the SUPL start message, for example, the positioning method information may be carried, or other information, which is not limited in this disclosure.

In one example, as shown in fig. 3b, when the SLP receives the SUPL start message, a SUPL response message may be generated and sent by SMS to respond to the SUPL start message.

In one possible embodiment, as shown in fig. 3b, the SET may send a SUPL location initialization message through SMS to continue the SUPL positioning session with the SLP in case of receiving the SUPL response message through SMS.

As shown in fig. 3b, the SUPL message may further include a SUPL location message and a SUPL end message, and for the introduction of the SUPL initialization message, the SUPL location message and the SUPL end message, please refer to the previous description or the description of the related protocol, which is not described herein again.

As shown in fig. 3b, if the technical solution of the information transmission method provided by the embodiment of the present disclosure is not adopted, when the SET needs SLP assisted positioning, a data connection (e.g., based on TCP/IP) with the SLP needs to be established first, however, when the network condition of the SET is poor or the data connection (network connection) with the SLP cannot be established for other reasons, the SUPL session between the SET and the SLP cannot be performed, that is, positioning cannot be achieved.

The information transmission method provided by the embodiment of the disclosure can transmit the SUPL message by using the SMS, so that the SUPL message can be transmitted by using the SMS to realize the positioning by using the SUPL under the condition that the SET and the SLP cannot realize the network connection.

In one possible embodiment, the step S11 of transmitting the SUPL message by using the short message service system SMS may include:

the SUPL message is transmitted using SMS based on circuit switched domain cs (circuit switched) and/or packet switched domain ps (packet switched).

Through the above method, the information transmission method provided by the embodiment of the present disclosure may support an optional manner in which the CS and/or PS transmits the SUPL message by using the SMS, thereby improving environmental adaptability and flexibility.

In one possible implementation, the SUPL message may include a SUPL message identifier indicating that the SUPL message is applied to a SUPL service.

The disclosed embodiments can SET a SUPL message identifier for a SUPL service, and can SET different SUPL message identifiers for different SUPL services, so that when a SET or SLP receives a SUPL message, the type of the corresponding SUPL service can be determined according to the SUPL message identifier to improve communication efficiency.

Of course, the specific form of the SUPL message identifier is not limited in the embodiments of the present disclosure, and can be set by those skilled in the art as needed.

Referring to fig. 4, fig. 4 is a flowchart illustrating an information transmission method according to an embodiment of the disclosure.

The method is applied to a terminal supporting Secure User Plane Location (SUPL), and as shown in FIG. 4, the method comprises:

step S21, transmitting SUPL message for positioning the terminal using the short message service system SMS.

Through the method, the SUPL message can be transmitted by using the SMS when the terminal is positioned based on the SUPL, so that the problem that the terminal cannot be positioned by using the SUPL under the condition that the terminal cannot be connected to the network is avoided.

The embodiment of the disclosure is not limited to be applied to a scenario that the SET and the SLP cannot establish a TCP/IP network connection, when the SET and the SLP can establish a TCP/IP network connection, the SET and the SLP may also transmit a SUPL message by using SMS, or jointly transmit a SUPL message by using SMS and TCP/IP network connection.

In one example, the transmission manner of the SUPL message of different SUPL services may be preset or prioritized such that the SET or SLP may transmit the SUPL message according to the priority, or the preset manner.

Through the above method, the embodiments of the present disclosure may provide various manners of transmitting the SUPL message, to select to transmit the SUPL message using SMS or to transmit the SUPL message together with the data connection using SMS according to different needs or environments, thereby increasing flexibility and environmental adaptability of the information transmission method.

In one possible embodiment, the SUPL message may include a SUPL location initialization message for initiating a positioning protocol session, and the step S21 of transmitting the SUPL message using a short message service system SMS may include:

the SUPL location initialization message is sent using SMS.

In one possible embodiment, the SUPL location initialization message may include location capability information of the terminal, and the method may further include:

determining positioning capacity information of a terminal, wherein the positioning capacity information is used for indicating the positioning capacity of the terminal;

writing the location capability information to the SUPL location initialization message.

Through the method, the SUPL position initialization message can be transmitted by using the SMS, so that the problem that the SUPL cannot be used for positioning due to network problems is solved, the communication efficiency is improved, and the user experience is improved.

In one possible embodiment, the step S21 of transmitting the SUPL message by using the short message service system SMS may include:

In one possible embodiment, the SUPL message further includes at least one of a SUPL initialization message, a SUPL location message, a SUPL end message, a SUPL start message, a SUPL response message, a SUPL reinitialization message (SUPL reinitiat), a SUPL terminal initialization message, a SUPL notification response message, a SUPL trigger start message, a SUPL trigger response message, a SUPL trigger stop message, a SUPL report message, a SUPL authentication request message, and a SUPL authentication response message, the SUPL initialization message and the SUPL start message being used to request the establishment of a SUPL session, the SUPL location message being used to carry positioning information, the SUPL end message being used to end a SUPL session, the SUPL response message being used to respond to the SUPL start message, a SUPL reinitialization message being used to restart a general SUPL session when a preset condition is satisfied, the SUPL terminal initialization message being used to position other terminals, the SUPL notification message is used for notification according to a current location of a terminal or in a session info query "re-notification" scheme, the SUPL notification response message is used for responding to the SUPL notification message, a SUPL trigger start message is used for triggering a SUPL session, a SUPL trigger response message is used for responding to the trigger start message, a SUPL trigger stop message is used for ending a SUPL trigger session, a SUPL report message is used for reporting a location estimation and/or a network measurement result, and the SUPL authentication request message and the SUPL authentication response message are used for authentication in a non-proxy mode.

It should be noted that the information transmission method applied to the SET corresponds to the information transmission method applied to the SLP, and for specific introduction, reference is made to the description of the information transmission method applied to the SLP, and details are not repeated herein.

Referring to fig. 5, fig. 5 is a schematic diagram illustrating a SUPL architecture according to an embodiment of the present disclosure.

As shown in fig. 5, the present disclosure SETs the communication direction of the SMS between the SET and the SLP to be bidirectional, the SET may send the SUPL message to the SLP or receive the SUPL message sent by the SLP, and correspondingly, the SLP may send the SUPL message to the SET or receive the SUPL message sent by the SET.

In one example, when sending an SMS message, the SUPL message may be sent as part of the SMS message, i.e., the SLP or SET may send an SMS message that includes the SUPL message.

The SMSC/MC is a Short Message Service Center/Message Center (Short Message Service Center/Message Center) and controls the transmission of SMS messages between the SET and the SLP.

It should be noted that, for other aspects of the SUPL architecture shown in fig. 5, reference is made to related protocols, which are not described herein again.

Referring to fig. 6, fig. 6 is a schematic diagram of a communication system according to an embodiment of the present disclosure.

In an example, the communication system may be an LTE (Long Term Evolution) communication system, as shown in fig. 6, in the embodiment of the present disclosure, an SMSC/MC may be added between the SET and the SLP, so that the SET and the SLP in the communication system may implement transmission of a bidirectional SMS message through the SMSC/MC, or may implement an SUPL bearer through data connection, so as to increase flexibility of communication mode selection of the communication system, and when the SUPL bearer (data connection) is not used, the SUPL message may be transmitted through the SMS, so as to implement communication.

Through the above arrangement, the information transmission method in the embodiment of the present disclosure can realize SUPL message transmission by SMS, and can be used simultaneously with the method for transmitting SUPL message by data network in the related art, and has the advantages of good compatibility, easy deployment, simple implementation, strong operability, and low resource consumption.

Referring to fig. 7, fig. 7 is a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure. The apparatus is applied to a secure user plane SUPL location platform SLP, as shown in fig. 7, the apparatus comprising:

a first transmission module 10 for transmitting a SUPL message for positioning a terminal using a short message service system SMS.

Through the device, the SUPL message can be transmitted by using the SMS when the terminal is positioned based on the SUPL, so that the problem that the terminal cannot be positioned by using the SUPL under the condition that the terminal cannot be connected to a network is avoided.

the SUPL location initialization message is received using SMS.

the SUPL message transmitted by using the SMS comprises the following steps:

the assistance data is transmitted using SMS.

Referring to fig. 8, fig. 8 is a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure. The apparatus is applied to a terminal supporting Secure User Plane Location (SUPL), and as shown in FIG. 8, the apparatus includes:

a second transmission module 20 for transmitting a SUPL message for positioning the terminal using a short message service system SMS.

the SUPL location initialization message is sent using SMS.

Referring to fig. 9, fig. 9 is a block diagram of an information transmitting apparatus according to an embodiment of the present disclosure. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 9, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power components 806 provide power to the various components of device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 800.

The multimedia component 808 includes a screen that provides an output interface between the device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 800 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the device 800 to perform the above-described methods.

In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 1932, is also provided that includes computer program instructions executable by the processing component 1922 of the apparatus 1900 to perform the above-described methods.

Referring to fig. 10, fig. 10 is a block diagram of a display control apparatus 1900 according to an embodiment of the disclosure. For example, the apparatus 1900 may be provided as a server. Referring to FIG. 10, the device 1900 includes a processing component 1922 further including one or more processors and memory resources, represented by memory 1932, for storing instructions, e.g., applications, executable by the processing component 1922. The application programs stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the above-described method.

The device 1900 may also include a power component 1926 configured to perform power management of the device 1900, a wired or wireless network interface 1950 configured to connect the device 1900 to a network, and an input/output (I/O) interface 1958. The device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An information transfer method applied to a secure user plane, SUPL, location platform, SLP, the method comprising:

initiating communication between a terminal and the SLP;

transmitting a SUPL message using a short message service system (SMS), the SUPL message being used for positioning a terminal;

wherein the transmitting the SUPL message by using the SMS comprises:

in the case where the SUPL message is transmitted with higher priority using SMS than using a TCP/IP network, the SUPL message is transmitted using SMS based on a circuit switched domain CS and/or a packet switched domain PS.

2. The method of claim 1, wherein the SUPL message comprises a SUPL location initialization message used to initiate a positioning protocol session, wherein the SUPL message is transmitted using a short message service system, SMS, comprising:

the SUPL location initialization message is received using SMS.

3. The method as claimed in claim 2, wherein the SUPL location initialization message includes location capability information of the terminal for indicating location capability of the terminal, request assistance information for indicating assistance information requested by the terminal for positioning, initial location information indicating an approximate location of the terminal, the method further comprising:

the SUPL message transmitted by using the SMS comprises the following steps:

the assistance data is transmitted using SMS.

4. The method of claim 1, wherein the SUPL message comprises a SUPL message identifier indicating that the SUPL message applies to SUPL services.

5. The method as claimed in claim 1, wherein the SUPL message further comprises at least one of a SUPL initialization message, a SUPL location message, a SUPL end message, a SUPL start message, a SUPL response message, a SUPL reinitialization message, a SUPL initialization message, a SUPL notification response message, a SUPL trigger start message, a SUPL trigger response message, a SUPL trigger stop message, a SUPL report message, a SUPL authentication request message, and a SUPL authentication response message, the SUPL initialization message and the SUPL start message being used for requesting the establishment of the SUPL session, the SUPL location message being used for carrying positioning information, the SUPL end message being used for ending the SUPL session, the SUPL response message being used for responding to the SUPL start message, the SUPL reinitialization message being used for restarting a general purpose SUPL session when a preset condition is satisfied, the SUPL terminal initialization message being used for positioning other terminals, the SUPL notification message is used for notification according to a current location of a terminal or in a session info query "re-notification" scheme, the SUPL notification response message is used for responding to the SUPL notification message, a SUPL trigger start message is used for triggering a SUPL session, a SUPL trigger response message is used for responding to the trigger start message, a SUPL trigger stop message is used for ending a SUPL trigger session, a SUPL report message is used for reporting a location estimate and/or a network measurement result, and the SUPL authentication request message and the SUPL authentication response message are used for authentication in a non-proxy mode.

6. An information transmission method applied to a terminal supporting Secure User Plane Location (SUPL), the method comprising:

initiating communication between a terminal and the SLP;

wherein the transmitting the SUPL message by using the SMS comprises:

7. The method of claim 6, wherein the transmitting the SUPL message using short message service system SMS further comprises:

in case a TCP/IP network connection cannot be established, the SUPL message is transmitted using the short message service system SMS.

8. The method of claim 6, wherein the SUPL message comprises a SUPL location initialization message used to initiate a positioning protocol session, wherein the SUPL message is transmitted using a short message service system, SMS, comprising:

the SUPL location initialization message is sent using SMS.

9. The method of claim 8, wherein the SUPL location initialization message comprises location capability information of the terminal for indicating location capabilities of the terminal, request assistance information for indicating assistance information requested by the terminal for positioning, initial location information indicating an approximate location of the terminal, and further comprising:

10. The method of claim 6, wherein the SUPL message comprises a SUPL message identifier indicating that the SUPL message applies to SUPL services.

11. The method as claimed in claim 6, wherein the SUPL message further comprises at least one of a SUPL initialization message, a SUPL location message, a SUPL end message, a SUPL start message, a SUPL response message, a SUPL reinitialization message, a SUPL initialization message, a SUPL notification response message, a SUPL trigger start message, a SUPL trigger response message, a SUPL trigger stop message, a SUPL report message, a SUPL authentication request message, and a SUPL authentication response message, the SUPL initialization message and the SUPL start message being used for requesting the establishment of the SUPL session, the SUPL location message being used for carrying positioning information, the SUPL end message being used for ending the SUPL session, the SUPL response message being used for responding to the SUPL start message, the SUPL reinitialization message being used for restarting a general purpose SUPL session when a preset condition is satisfied, the SUPL terminal initialization message being used for positioning other terminals, the SUPL notification message is used for notification according to a current location of a terminal or in a session info query "re-notification" scheme, the SUPL notification response message is used for responding to the SUPL notification message, a SUPL trigger start message is used for triggering a SUPL session, a SUPL trigger response message is used for responding to the trigger start message, a SUPL trigger stop message is used for ending a SUPL trigger session, a SUPL report message is used for reporting a location estimation and/or a network measurement result, and the SUPL authentication request message and the SUPL authentication response message are used for authentication in a non-proxy mode.

12. An information transfer apparatus applied to a secure user plane, SUPL, location platform, SLP, the apparatus comprising:

a first transmission module, configured to initiate communication between a terminal and the SLP, and transmit an SUPL message using a short message service system SMS, where the SUPL message is used to locate the terminal;

wherein the transmitting the SUPL message by using the SMS comprises:

13. An information transmission apparatus applied to a terminal supporting Secure User Plane Location (SUPL), the apparatus comprising:

a second transmission module, configured to initiate communication between the terminal and the SLP, and transmit an SUPL message using a short message service system SMS, where the SUPL message is used to locate the terminal;

wherein the transmitting the SUPL message by using the SMS comprises:

14. An information transmission apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to:

performing the method of any one of claims 1-5; or

Performing the method of any one of claims 6 to 11.

15. A non-transitory computer readable storage medium having stored thereon computer program instructions, wherein the computer program instructions, when executed by a processor, implement the method of any of claims 1 to 5 or the method of any of claims 6 to 11.