Apparatus and method to provide paging priority in multicast service supporting network
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. An embodiment relates to a method and apparatus for transmitting multicast data to a terminal in a 5G network. The method for transmitting multicast data to a terminal comprises: receiving, from a multicast broadcast session management function (MB-SMF), a first message for activating a multicast broadcast service (MBS) session; identifying information on a MBS QoS flow of at least one MBS QoS flow within the MBS session; and transmitting, to an access and mobility management function (AMF), a second message comprising the information on the MBS QoS flow for the AMF to transmit a paging message according to the information on the MBS QoS flow.
1 . A method performed by a session management function (SMF) in a communication system, the method comprising:
receiving, from a multicast broadcast session management function (MB-SMF), a first message for activating a multicast broadcast service (MBS) session;
identifying a most demanding allocation and retention priority (ARP) and fifth generation (5G) quality of service (QoS) identifier (5QI) of at least one all MBS QoS flow within the MBS session; and
transmitting, to an access and mobility management function (AMF), a second message comprising the most demanding ARP and 5QI of the at least one all MBS QoS flow within the MBS session.
2 . The method of claim 1 , wherein the first message comprises a Nmbsmf_MBSSession_ContextStatusNotify message.
3 . The method of claim 1 , wherein the second message further comprises a temporary mobile group identity (TMGI) of the MBS session.
4 . The method of claim 1 , wherein the second message comprises a Namf_MT_EnableGroupReachability request message.
5 . The method of claim 1 , wherein the first message is initiated based on at least one of the MB-SMF receiving, from a multicast broadcast user plane function (MB-UPF), a notification for indicating an arrival of a downlink data for the MBS session, or the MB-SMF receiving, from an application function (AF), a MBS session activation request for the MBS session.
6 . A method performed by an access and mobility management function (AMF) in a communication system, the method comprising:
receiving, from a session management function (SMF), a message comprising a most demanding allocation and retention priority (ARP) and fifth generation (5G) quality of service (QoS) identifier (5QI) of all multicast broadcast service quality of service (MBS QoS) flow within a MBS session; and
transmitting, to a base station, a paging request message based on the most demanding ARP and 5QI of the all MBS QoS flow within the MBS session.
7 . The method of claim 6 , wherein the message comprises a Namf_MT_EnableGroupReachability request message.
8 . The method of claim 6 , wherein the message further comprises a temporary mobile group identity (TMGI) of the MBS session.
9 . A session management function (SMF) in a communication system, the SMF comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a multicast broadcast session management function (MB-SMF), a first message for activating a multicast broadcast service (MBS) session,
identify a most demanding allocation and retention priority (ARP) and fifth generation (5G) quality of service (QoS) identifier (5QI) of all MBS QoS flow within the MBS session,
transmit, to an access and mobility management function (AMF), a second message comprising the most demanding ARP and 5QI of the all MBS QoS flow within the MBS session.
10 . The SMF of claim 9 , wherein the first message comprises a Nmbsmf_MBSSession_ContextStatusNotify message.
11 . The SMF of claim 9 , wherein the second message further comprises a temporary mobile group identity (TMGI) of the MBS session.
12 . The SMF of claim 9 , wherein the second message comprises a Namf_MT_EnableGroupReachability request message.
13 . The SMF of claim 9 , wherein the first message is initiated based on at least one of the MB-SMF receiving, from a multicast broadcast user plane function (MB-UPF), a notification for indicating an arrival of a downlink data for the MBS session, or the MB-SMF receiving, from an application function (AF), a MBS session activation request for the MBS session.
14 . An access and mobility management function (AMF) in a communication system, the AMF comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a session management function (SMF), a message comprising a most demanding allocation and retention priority (ARP) and fifth generation (5G) quality of service (QoS) identifier (5QI) of all multicast broadcast service quality of service (MBS QoS) flow within a MBS session, and
transmit, to a base station, a paging request message based on the most demanding ARP and 5QI of the all MBS QoS flow within the MBS session.
15 . The AMF of claim 14 , wherein the message comprises a Namf_MT_EnableGroupReachability request message.
16 . The AMF of claim 14 , wherein the message further comprises a temporary mobile group identity (TMGI) of the MBS session.