# US 8,788,684 B2 · Method for secure user plane (SUPL) version negotiation

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- Number: US 8,788,684 B2
- Document ID: US8788684B2
- Status: Granted
- Kind: B2
- Application number: 13/752,130
- Filed: 2013-01-28
- Published: 2013-06-13
- Granted: 2014-07-22
- Earliest claimed: 2007-09-26
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Stephen W. Edge; Andreas K. Wachter
- Web page: https://patentgrep.com/patent/US8788684B2

## CPC

- H04L 67/141: Setup of application sessions (admission control or resource allocation in data switching networks H04L47/70)
- H04W 4/02: Services making use of location information
- H04L 63/08: {for authentication of entities (cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32)}
- H04L 69/24: Negotiation of communication capabilities
- H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The subject matter disclosed herein relates to a system and method for negotiating a version of Secure User Plane Location (SUPL) between a network entity and a SUPL enabled terminal. In a particular implementation, a SUPL initiation message is transmitted from a network entity to a SUPL entity, where the SUPL initiation message identifies a plurality of SUPL versions capable of supporting a desired service. A response is received from the SUPL entity that is based, at least in part, on an ability of the SUPL entity to support at least one of the plurality of versions.

## Claims

### Claim 1

A method, comprising:
transmitting a secure user plane location (SUPL) initiation message from one of a network entity or a SUPL entity, the SUPL initiation message comprising at least two SUPL major versions supported by said one of the network entity or the SUPL entity; and
receiving a message in response to the SUPL initiation message, the received message comprising a SUPL major version supported by the other of the network entity or the SUPL entity.

### Claim 2 (depends on 1)

The method of claim 1, wherein a first SUPL major version among the at least two SUPL major versions comprises an intended SUPL major version, and wherein a second SUPL major version among the at least two SUPL major versions comprises a minimum SUPL major version.

### Claim 3 (depends on 2)

The method of claim 2, wherein the SUPL initiation message further comprises an intended SUPL minor version.

### Claim 4 (depends on 3)

The method of claim 3, wherein the intended SUPL major version and the intended SUPL minor version are expressed as M1.m1, wherein M1 comprises the intended SUPL major version, and wherein m1 comprises the intended SUPL minor version.

### Claim 5 (depends on 2)

The method of claim 2, wherein the SUPL major version in the received message is between the intended SUPL major version and the minimum SUPL major version inclusive.

### Claim 6 (depends on 1)

The method of claim 1, wherein the received message further comprises a SUPL minor version supported by the SUPL entity.

### Claim 7 (depends on 2)

The method of claim 2, wherein the received message comprises a SUPL END message when the SUPL entity does not support a SUPL major version between the intended SUPL major version and the minimum SUPL major version inclusive.

### Claim 8 (depends on 1)

The method of claim 1, further comprising selectively providing a location service based on the received message.

### Claim 9 (depends on 1)

The method of claim 1, wherein the SUPL entity comprises an SUPL Enabled Terminal (SET), and wherein the network entity comprises a Home SUPL Location Platform (H-SLP) or an Emergency SUPL Location Platform (E-SLP).

### Claim 10

A method, comprising:
receiving from one of a network entity or a secure user plane location (SUPL) entity, a SUPL initiation message comprising at least two SUPL major versions supported by said one of the network entity or the SUPL entity; and
transmitting a message in response to the SUPL initiation message, the transmitted message comprising a SUPL major version supported by the other of the network entity or the SUPL entity.

### Claim 11 (depends on 10)

The method of claim 10, wherein a first SUPL major version among the at least two SUPL major versions comprises an intended SUPL major version, and wherein a second SUPL major version among the at least two SUPL major versions comprises a minimum SUPL major version.

### Claim 12 (depends on 11)

The method of claim 11, wherein the SUPL initiation message further comprises an intended SUPL minor version.

### Claim 13 (depends on 12)

The method of claim 12, wherein the intended SUPL major version and the intended SUPL minor version are expressed as M1.m1, wherein M1 comprises the intended SUPL major version, and wherein m1 comprises the intended SUPL minor version.

### Claim 14 (depends on 11)

The method of claim 11, wherein the SUPL major version in the transmitted message is between the intended SUPL major version and the minimum SUPL major version inclusive.

### Claim 15 (depends on 10)

The method of claim 10, wherein the transmitted message further comprises a SUPL minor version supported by the SUPL entity.

### Claim 16 (depends on 10)

The method of claim 10, further comprising receiving a location service in response to transmitting the message comprising the SUPL major version supported by the SUPL entity.

### Claim 17 (depends on 11)

The method of claim 11, wherein the transmitted message comprises a SUPL END message when the SUPL entity does not support a SUPL major version between the intended SUPL major version and the minimum SUPL major version inclusive.

### Claim 18 (depends on 10)

The method of claim 10, wherein the SUPL entity comprises an SUPL Enabled Terminal (SET), and wherein the network entity comprises a Home SUPL Location Platform (H-SLP) or an Emergency SUPL Location Platform (E-SLP).

### Claim 19

A network entity, comprising:
a processor configured to determine a secure user plane location (SUPL) initiation message comprising at least two SUPL major versions supported by said network entity;
a transmitter configured to transmit the SUPL initiation message to a SUPL entity; and
a receiver configured to receive a message from the SUPL entity in response to the SUPL initiation message, the received message comprising a SUPL major version supported by the SUPL entity.

### Claim 20 (depends on 19)

The network entity of claim 19, wherein a first SUPL major version among the at least two SUPL major versions comprises an intended SUPL major version, and wherein a second SUPL major version among the at least two SUPL major versions comprises a minimum SUPL major version.

### Claim 21 (depends on 20)

The network entity of claim 20, wherein the SUPL initiation message further comprises an intended SUPL minor version.

### Claim 22 (depends on 19)

The network entity of claim 19 further comprising an SUPL Location Platform.

### Claim 23

A secure user plane location (SUPL) entity, comprising:
a receiver configured to receive a SUPL initiation message from a network entity, the SUPL initiation message comprising at least two SUPL major versions supported by the network entity;
a processor configured to determine a response message to the SUPL initiation message, the response message comprising a SUPL major version supported by the SUPL entity; and
a transmitter configured to transmit the response message to the network entity.

### Claim 24 (depends on 23)

The SUPL entity of claim 23, wherein a first SUPL major version among the at least two SUPL major versions comprises an intended SUPL major version, and wherein a second SUPL major version among the at least two SUPL major versions comprises a minimum SUPL major version.

### Claim 25 (depends on 24)

The SUPL entity of claim 24, wherein the SUPL initiation message further comprises an intended SUPL minor version.

### Claim 26 (depends on 23)

The SUPL entity of claim 23 further comprising an SUPL Enabled Terminal (SET).

### Claim 27

An apparatus comprising at least a processor and a memory coupled to the processor, the apparatus further comprising:
means for transmitting a first message;
wherein the first message is a secure user plane location (SUPL) initiation message from one of a network entity or a SUPL entity, the SUPL initiation message comprising at least two SUPL major versions supported by said one of the network entity or the SUPL entity; and
means for receiving a second message;
wherein the second message is a response message from the other of the network entity or the SUPL entity in response to the SUPL initiation message, the response message comprising a SUPL major version supported by said other of the network entity or the SUPL entity.

### Claim 28

An apparatus comprising at least a processor and a memory coupled to the processor, the apparatus further comprising:
means for receiving a first message;
wherein the first message is a secure user plane location (SUPL) message from one of a network entity or a SUPL entity, the SUPL initiation message comprising at least two SUPL major versions supported by said one of the network entity or the SUPL entity; and
means for transmitting a second message;
wherein the second message is a response message from the other of the SUPL entity or the network entity in response to the SUPL initiation message, the response message comprising a SUPL major version supported by said other of the network entity or the SUPL entity.

### Claim 29

A non-transitory computer-readable storage medium comprising instructions, which, when executed by a computing platform, cause the computing platform to perform operations comprising:
transmitting a secure user plane location (SUPL) initiation message from one of a network entity or a SUPL entity, the SUPL initiation message comprising at least two SUPL major versions supported by said one of the network entity or the SUPL entity; and
receiving a message from the other of the network entity or the SUPL entity in response to the SUPL initiation message, the received message comprising a SUPL major version supported by said other of the network entity or the SUPL entity.

### Claim 30

A non-transitory computer-readable storage medium comprising instructions, which, when executed by a computing platform, cause the computing platform to perform operations comprising:
receiving, at a secure user plane location (SUPL) entity, an SUPL initiation message from one of a network entity or a SUPL entity, the SUPL initiation message comprising at least two SUPL major versions supported by said one of the network entity or the SUPL entity; and
transmitting a message to the network entity in response to the SUPL initiation message, the transmitted message comprising a SUPL major version supported by said other of the network entity or the SUPL entity.