Lg Electronics Inc.

Dong-Hee Shim

Min-Jung Shon

Bong-Hoe Kim

Kyu-Sung Han

Youn-Sung Chu

Dong-Youn Seo

Sung-Mu Son

Kang-Suk Huh

Hee-Joung Lee

Seung-Jae Lee

Te-Hyun Kim

Min-Jung Kim

Hyounhee Koo

Joon-Kui Ahn

Dong-Wook Roh

Seoung-Hoon Hwang

Dong-Yeon Seo

Bong-Hoe Jugong Apt 111-204 Kim

Seong-Hoon Hwang

Provided is a user privacy management apparatus and method on a Secure User Plane Location (SUPL) network including a SUPL Location Platform (SLP) and a SUPL Enabled Terminal (SET) and performing privacy authorization according to location of the SET, wherein when the location of the SET is calculated, the SLP (or SUPL Positioning Center (SPC) within the SLP) checks a privacy setup according to the calculated location, thereafter queries to a SET user whether to execute the privacy setup using a SUPL INIT message or a SUPL NOTIFICATION message, and then executes the privacy setup according to queries and responses transmitted through a SUPL START message or a SUPL NOTIFICATION RESPONSE message, whereby a user privacy can be managed more stably by notifying a user of the privacy setup according to the location of the user for reconfirmation.

User privacy management apparatus and method in mobile communications system

A method of canceling a location information request including receiving a request from a location service client for location information of a target terminal; performing location tracking of the target terminal; and sending a message to the location service client when a privacy profile state has changed. Further, the message indicates that the request from the location service client for location information of the target terminal is canceled.

Method of canceling location information request

A method of canceling a location information request is disclosed, in which if a location server having received a location information request about a specific terminal from an external client is unable to forward location information of the terminal to the external client, the location server can cancel the location information request without a cancellation request from the external client. The location information request cancellation message may be selected among a Triggered Location Report message or a Triggered Location Reporting Stop Answer message or among a Standard Location Immediate Report message or a Standard Location Immediate Stop Answer message according to a location information request message.

A SET-initiated area event triggered positioning method in a session-based service system is disclosed. The method is variously performed according to a proxy mode or a non-proxy mode, and further according to which SLP (SUPL location platform) has a positioning procedure.

SET initiated area event triggered positioning method in mobile communication system

Set initiated area event triggered positioning method in mobile communication system

A method of providing a broadcast/multicast (BCAST) service, the method including receiving, from a terminal, a request of access to a BCAST service, performing service authorization with a home network, delivering, to the terminal, a message including a rights object (RO) to access the BCAST service, if the terminal is authorized to receive the BCAST service as a result of the service authorization, and providing the BCAST service to the terminal that was authorized to receive the BCAST service.

Broadcast/multicast service system and method providing inter-network roaming

A method and system for providing a broadcast/multicast (BCAST) service, are provided. The method includes obtaining, by the terminal, at least one BCAST service from a visiting network when the terminal roams in the visiting network.

Disclosed is a method for transmitting a signal in a mobile communications system using a plurality of transmit/receive antennas. A method for transmitting a signal in accordance with an embodiment of the present invention comprises the steps of: a receiving end's calculating a signal to interference noise ratio (SINR) with respect to every antenna pairs configuring STTD pairs to be transmittable from a transmitting end; feedbacking information indicating an antenna pair having the greatest SINR to the transmitting end; and the transmitting end's performing a D-STTD transmission through the antenna pair determined by the feedbacked information. A method for transmitting a signal in accordance with another embodiment of the present invention comprises the steps of: a receiving end's feedbacking information of an antenna pair and/or an eigenvector (weight vector) of a channel matrix with respect to transmit antennas included in the space-time multiplexing (STTD) pair to a transmitting end; and the transmitting end's forming beam by multiplying a symbol with respect to each STTD pair by the eigenvector, and thereafter transmitting the beam through each transmit antenna (in case of using two antennas) or a transmit antenna pair (in case of using more than four antennas) determined by the information of the antenna pair.

Method for transmitting/receiving signal in MIMO system

A method and device for providing a broadcast/multicast service are discussed. According to an embodiment, the invention provides a method comprising: receiving, by a client module, a service guide including contents information with respect to one or more contents from a broadcast/multicast server; transmitting, by the client module, a broadcast/multicast request message with respect to contents selected by a user of a specific terminal among the contents information included in the received service guide to the broadcast/multicast server; transmitting, by the client module, a location tracking request message with respect to the specific terminal to a network entity; receiving a response message with respect to the location tracking request message, the response message including a location tracking result from the network entity; transmitting, by the client module, location information of the specific terminal to the broadcast/multicast server.

Broadcast/multicast service method based on user location information

A method and device for receiving a broadcast/multicast service as discussed. According to an embodiment, the invention provides a method of receiving a broadcast/multicast service by a terminal, the method comprising: receiving a service guide from a network including a broadcast/multicast server, the service guide being used by a user to select specific contents related to a broadcast/multicast service; transmitting information on the contents selected by the user, to the network; transmitting a content request to the network; and receiving contents from the network in response to the content request, wherein the received contents were further selected, among the contents selected by the user, by the broadcast/multicast server that performed an exact location tracking of the terminal to enable location based filtering of services corresponding to the contents selected by the user.

According to an embodiment, a location based notification method in a H-SLP (Home-SUPL Location Platform) includes receiving, by the H-SLC, a request for positioning of the terminal; transmitting, a session initialization message including a notification mode parameter to the terminal if one or more of location-based notification and verification are required as a result of checking the privacy of the terminal; and receiving a report message including the positioned location of the terminal from the terminal, wherein the positioned location of the terminal is acquired by a positioning process between the H-SPC and the terminal.

Location information system and method for performing notification based upon location

According to an embodiment, a location based notification method in a H-SLP (Home-SUPL Location Platform) includes receiving, by the H-SLP, a request for positioning of a roaming terminal; transmitting, a session initialization message including a notification mode parameter to the roaming terminal if one or more of location-based notification and verification are required as a result of checking a privacy of the roaming terminal; transferring a positioning start message to a V-SLP (Visited-SUPL Location Platform) if the H-SLP receives the positioning initialization message from the roaming terminal; receiving a calculated location of the roaming terminal from the V-SLP; and transmitting a session notification message including a notification element to the roaming terminal if the H-SLP receives the calculated location of the roaming terminal.

A broadcast/multicast (BCAST) service, specifically, a BCAST service system for transmitting broadcast contents to terminals when a network load is small and a contents transmission method using the same are disclosed. When contents are broadcast by using a distribution window (DM) and a presentation window (PW), the terminals feed back a message indicating reception confirmation of the contents to the network, such that the contents reception success rate between the terminals and the network can be improved.

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Seoul, South Korea

Dong-Hee Shim