US 12,432,815 B2
Switching method and apparatus based on MBMS, and computer-readable storage medium
Dajun Zhang, Beijing (CN)
Assigned to DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
Appl. No. 18/020,072
Filed by DATANG MOBILE COMMUNICATIONS EQUIPMENT CO., LTD., Beijing (CN)
PCT Filed Jul. 19, 2021, PCT No. PCT/CN2021/107205
§ 371(c)(1), (2) Date Feb. 6, 2023,
PCT Pub. No. WO2022/028242, PCT Pub. Date Feb. 10, 2022.
Claims priority of application No. 202010773791.7 (CN), filed on Aug. 4, 2020.
Prior Publication US 2023/0284335 A1, Sep. 7, 2023
Int. Cl. H04W 76/40 (2018.01); H04W 36/00 (2009.01)
CPC H04W 76/40 (2018.02) [H04W 36/0007 (2018.08)] 18 Claims
OG exemplary drawing
 
1. A switching method based on Multimedia Broadcast Multicast Service (MBMS) service, applied to a first network node, comprising:
sending a switching request message to a second network node, wherein the switching request message comprises a public forwarding channel establishment indication;
receiving a switching response message and a switching command message respectively sent by the second network node, wherein the switching response message comprises a public forwarding channel address;
sending the switching command message to a User Equipment (UE) according to the switching response message;
establishing a public forwarding channel with the second network node according to the public forwarding channel address, the public forwarding channel being used by the first network node to forward MBMS service data packets sent to the UE to the second network node; and
updating, when the switching command message and/or the switching response message includes a list of failed MBMS sessions, system broadcast information according to MBMS service data packets supported by adjacent nodes other than the second network node, the list of failed MBMS sessions being used for characterizing that the MBMS sessions in the list of failed MBMS sessions cannot be provided by a broadcast mode of the second network node; or the list of failed MBMS sessions being used for characterizing that the second network node does not support the MBMS sessions in the list of failed MBMS sessions.