US-12621633-B2 - Method and system for sharing location information in remote ambient call

US12621633B2US 12621633 B2US12621633 B2US 12621633B2US-12621633-B2

Abstract

The method includes determining that the remote ambient call is established between an MCPTT first electronic device ( 100 ) and an MCPTT second electronic device ( 200 ) and sending a floor grant message to the MCPTT second electronic device ( 200 ) wherein the floor grant message includes mandatory acknowledgment required indication set for the MCPTT second electronic device ( 200 ) to share the location information of the MCPTT second electronic device ( 200 ) with the MCPTT first electronic device ( 100 ) by an MCPTT server ( 300 ). Further, the method includes receiving a floor grant acknowledgement message with the location information of the MCPTT second electronic device ( 200 ) and sharing the location information of the MCPTT second electronic device ( 200 ) with the MCPTT first electronic device ( 100 ) in the remote ambient call of the MCPTT service using a floor taken message by the MCPTT server ( 300 ).

Inventors

Kiran Gurudev KAPALE
Basavaraj Jayawant Pattan
Arunprasath Ramamoorthy
Sapan Pramodkumar SHAH

Assignees

SAMSUNG ELECTRONICS CO., LTD.

Dates

Publication Date: 20260505
Application Date: 20210305
Priority Date: 20210224

Claims (14)

1 . A method performed by a server in a wireless communication system, the method comprising: identifying, whether a remote ambient listening call is requested from a first device to a second device; transmitting, to the second device, a floor granted message including an acknowledgment required indication indicating whether an Acknowledgment is required based on the identification that the remote ambient listening call has been requested; receiving, from the second device, a floor acknowledgement message, wherein the floor acknowledgment message comprises location information of the second device based on profile information of the second device allowing sending the location information of the second device; and transmitting, to the first device, a floor taken message including the location information of the second device.
2 . The method of claim 1 , further comprising: receiving, from the second device, media; and transmitting, to the first device, the received media.
3 . The method of claim 1 , wherein identifying whether the remote ambient listening call is requested comprising: receiving, from the first device, a remote ambient listening call request; identifying whether an authentication of the first device for the remote ambient listening call is successful; transmitting, to the second device, the remote ambient listening call request; and receiving, from the second device, a remote ambient listening call response.
4 . The method of claim 1 , wherein the floor granted message comprises at least one of a duration field including a timer value for which the second device is allowed to transmit, a floor priority field including a granted level of priority, a track info field, a floor indicator field, or information about a subtype of the floor granted message, and wherein the information about the subtype includes a first bit set to one.
5 . The method of claim 1 , wherein the floor acknowledgement message comprises at least one of a message type field which is set to 1, a source field which is set to 0, or a location field including the location information of the second device.
6 . The method of claim 5 , wherein the location field comprises at least one of a location field ID, a location length, or a location value.
7 . The method of claim 1 , wherein the floor taken message further comprises at least one of information about an identity of a granted user, or information about a functional alias of the granted user.
8 . A server in a wireless communication system, the server comprising: a communicator; and at least one processor coupled to the communicator and configured to: identify, whether a remote ambient listening call is requested from a first device to a second device; control the communicator to transmit, to the second device, a floor granted message including an acknowledgment required indication indicating whether an Acknowledgment is required based on the identification that the remote ambient listening call has been requested; control the communicator to receive, from the second device, a floor acknowledgement message, wherein the floor acknowledgement message includes location information of the second device based on profile information of the second device allowing sending the location information of the second device; and control the communicator to transmit, to the first device, a floor taken message including the location information of the second device.
9 . The server of claim 8 , wherein the at least one processor is further configured to: control the communicator to receive, from the second device, a media; and control the communicator to transmit, to the first device, the received media.
10 . The server of claim 8 , wherein the at least one processor is further configured to: control the communicator to receive, from the first device, a remote ambient listening call request; identify whether an authentication of the first device for the remote ambient listening call is successful; control the communicator to transmit, to the second device, the remote ambient listening call request; and control the communicator to receive, from the second device, a remote ambient listening call response.
11 . The server of claim 8 , wherein the floor granted message comprises at least one of a duration field including a timer value for which the second device is allowed to transmit, a floor priority field including a granted level of priority, a track info field, a floor indicator field, or information about a subtype of the floor granted message, and wherein the information about the subtype includes a first bit set to one.
12 . The server of claim 8 , wherein the floor acknowledgement message comprises at least one of a message type field which is set to 1, a source field which is set to 0, or a location field including the location information of the second device.
13 . The server of claim 12 , wherein the location field comprises at least one of a location field ID, a location length, or a location value.
14 . The server of claim 8 , wherein the floor taken message further comprises at least one of information about an identity of a granted user, or information about a functional alias of the granted user.

Description

TECHNICAL FIELD The present invention relates to a wireless communication, and more specifically related to a method and system for sharing location information in a remote ambient call of a Mission-Critical Push-To-Talk (MCPTT) service. BACKGROUND ART To meet the demand for wireless data traffic having increased since deployment of 4th generation (4G) communication systems, efforts have been made to develop an improved 5th generation (5G) or pre-5G communication system. The 5G or pre-5G communication system is also called a ‘beyond 4G network’ or a ‘post long term evolution (LTE) system’. The 5G communication system is considered to be implemented in higher frequency (mmWave) bands, e.g., 60 GHz bands, so as to accomplish higher data rates. To decrease propagation loss of the radio waves and increase the transmission distance, beamforming, massive multiple-input multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beamforming, and large scale antenna techniques are discussed with respect to 5G communication systems. In addition, in 5G communication systems, development for system network improvement is under way based on advanced small cells, cloud radio access networks (RANs), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, moving network, cooperative communication, coordinated multi-points (COMP), reception-end interference cancellation and the like. In the 5G system, hybrid frequency shift keying (FSK) and Feher's quadrature amplitude modulation (FQAM) and sliding window superposition coding (SWSC) as an advanced coding modulation (ACM), and filter bank multi carrier (FBMC), non-orthogonal multiple access (NOMA), and sparse code multiple access (SCMA) as an advanced access technology have been developed. The Internet, which is a human centered connectivity network where humans generate and consume information, is now evolving to the Internet of things (IOT) where distributed entities, such as things, exchange and process information without human intervention. The Internet of everything (IoE), which is a combination of the IoT technology and the big data processing technology through connection with a cloud server, has emerged. As technology elements, such as “sensing technology”, “wired/wireless communication and network infrastructure”, “service interface technology”, and “security technology” have been demanded for IoT implementation, a sensor network, a machine-to-machine (M2M) communication, machine type communication (MTC), and so forth have been recently researched. Such an IoT environment may provide intelligent Internet technology services that create a new value to human life by collecting and analyzing data generated among connected things. IoT may be applied to a variety of fields including smart home, smart building, smart city, smart car or connected cars, smart grid, health care, smart appliances and advanced medical services through convergence and combination between existing information technology (IT) and various industrial applications. In line with this, various attempts have been made to apply 5G communication systems to IoT networks. For example, technologies such as a sensor network, MTC, and M2M communication may be implemented by beamforming, MIMO, and array antennas. Application of a cloud RAN as the above-described big data processing technology may also be considered to be as an example of convergence between the 5G technology and the IoT technology. As described above, various services can be provided according to the development of a wireless communication system, and thus a method for easily providing such services is required. With continuous growth and development in telecommunication industry, ambient listening calls have become quite popular nowadays. The ambient listening call can be initiated by an authorized MCPTT user who wants to be listened by another authorized MCPTT user or can be initiated by an authorized MCPTT user who wants to listen another MCPTT user. Furthermore, a role of an MCPTT client/user in the ambient listening call is, one of: i. Listening MCPTT user: The MCPTT user in the ambient listening call who receives a media transmission from a listened-to MCPTT user; orii. Listened-to MCPTT user. The MCPTT user in the ambient listening call who is being listened to, may or may not be aware of being listened to depending on a type of the ambient listening call. Furthermore, the type of the ambient listening call from a perspective of a relationship of an initiator of the ambient listening call to the MCPTT user being listened to. The two types of the ambient listening call are: i. Remote-init (remote ambient call): Indicating that the listening MCPTT user has initiated the call; andii. Local-init (local ambient call): Indicating that the listened-to MCPTT user has initiated the call. Such ambient listening calls usually involve several participants communicating among themselves where the listen-to