发明名称 Technique for obtaining a multicast address that matches an IP version supported by a terminal
摘要 A method for obtaining a multicast address. A first request message is sent to the EPG device to obtain program guide information. The program guide information is returned by the EPG device. A multicast address matching a current user terminal is obtained according to the program guide information. A multicast request message is sent according to the multicast address.
申请公布号 US9516385(B2) 申请公布日期 2016.12.06
申请号 US201414298486 申请日期 2014.06.06
申请人 Huawei Technologies Co., Ltd. 发明人 Zhang Zhongjian;Zha Min
分类号 H04N21/482;H04N21/4385;H04L29/06;H04N21/643;H04L12/18;H04N21/6405;H04L29/12 主分类号 H04N21/482
代理机构 Slater Matsil, LLP 代理人 Slater Matsil, LLP
主权项 1. A method for obtaining a multicast address, the method comprising: sending a first request message to an electronic program guide (EPG) device to obtain program guide information, wherein the first request message carries a terminal identifier of a current user terminal, wherein the program guide information comprises a multicast address matching the current user terminal, and the terminal identifier is used to represent an IP version supported by the current user terminal, and wherein the multicast address that matches the current user terminal comprises an IP version supported by the multicast address that is consistent with the IP version supported by the current user terminal; receiving the program guide information returned by the EPG device, wherein the program guide information further comprises at least one of: a correspondence between a multicast channel and an Internet protocol version 4 (IPv4) multicast address, and a correspondence between the multicast channel and an Internet protocol version 6 (IPv6) multicast address; obtaining, according to the program guide information, a multicast address matching the current user terminal; and sending a multicast request message according to the multicast address matching the current user terminal, wherein the multicast request message comprises a multicast address selected by a user, wherein the multicast address selected by the user comprises a multicast group address, and wherein the multicast request message comprises at least one of: an Internet group management protocol (IGMP) request message and a multicast listener discover (MLD) request message.
地址 Shenzhen CN