19008217. COMMUNICATION METHOD AND APPARATUS (HUAWEI TECHNOLOGIES CO., LTD.)
COMMUNICATION METHOD AND APPARATUS
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COMMUNICATION METHOD AND APPARATUS
This abstract first appeared for US patent application 19008217 titled 'COMMUNICATION METHOD AND APPARATUS
Original Abstract Submitted
A communication method and apparatus are provided, so that an access network device can configure an initial hyper frame number (HFN) and a reference sequence number (SN) for a terminal device in time when no data packet is received from a core network device. The method includes: A first core network device obtains an initial multicast/broadcast service (MBS) quality of service flow identifier (QFI) SN corresponding to a first MBS session, and sends the initial MBS QFI SN in a first procedure. The first procedure is a procedure before a the 1data packet of the first MBS session is sent to an access network device. After receiving the initial MBS QFI SN in the first procedure, the access network device may determine an initial HFN and a reference SN based on the initial MBS QFI SN, and send the initial HFN and the reference SN to a terminal device.