US 12,483,604 B2
Communication method and apparatus, device, system, chip and storage medium
Hong Xiao, Chongqing (CN); and Hao Wu, Chongqing (CN)
Assigned to CHINA SATELLITE NETWORK EXPLORATION CO., LTD., Chongqing (CN)
Filed by CHINA SATELLITE NETWORK EXPLORATION CO., LTD., Chongqing (CN)
Filed on Jun. 23, 2025, as Appl. No. 19/245,479.
Application 19/245,479 is a continuation of application No. PCT/CN2024/129673, filed on Nov. 4, 2024.
Claims priority of application No. 202410341259.6 (CN), filed on Mar. 22, 2024.
Prior Publication US 2025/0323956 A1, Oct. 16, 2025
Int. Cl. H04L 65/1016 (2022.01); H04W 28/02 (2009.01); H04W 64/00 (2009.01); H04W 84/06 (2009.01)
CPC H04L 65/1016 (2013.01) [H04W 28/0268 (2013.01); H04W 64/00 (2013.01); H04W 84/06 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A communication method, wherein the method is applied in a proxy call session control function (P-CSCF), and the method comprises:
receiving a first session invitation request corresponding to a first terminal, wherein the first session invitation request is used to request to perform an Internet protocol multimedia subsystem (IMS) call with a second terminal;
transmitting a second location query request to a policy control function (PCF), wherein the second location query request is used to request to query location information of the second terminal;
receiving a second location query response message from the PCF, wherein the second location query response message includes the location information of the second terminal, wherein the location information of the second terminal includes a satellite identification of a satellite to which the second terminal is connected;
determining that the first terminal and the second terminal are connected to a same satellite based on location information of the first terminal and the location information of the second terminal, wherein the satellite that the first terminal and the second terminal are connected to hosts a first user plane function (UPF), and wherein the location information of the first terminal includes a satellite identification of a satellite to which the first terminal is connected; and
transmitting an indication message to the PCF, wherein the indication message is used to indicate that a condition for the first terminal and the second terminal to perform the IMS call via the satellite is met.