JS010257802B2 d2 United States Patent ao)Patent No.:US 10,257,802 B2 Xue et al. (45)Date of Patent: Apr.9,2019 (54)BINDING REGISTRATION METHOD,DATA (58)Field of Classification Search FORWARDING METHOD,RELATED CPC…H04W60/04:H04W8/06;H04W8/082 DEVICE.AND NETWORK SYSTEM H04W8/10:H04W40/00:H04L 12/4633:H04L61/2038:H04L61/305 (71)Applicants:Huawei Technologies Co.,Ltd., See application file for complete search history. Shenzhen (CN):University of Science (56 References Cited and Technology of China,Hefei (CN) U.S.PATENT DOCUMENTS (72)Inventors:Kaiping Xue,Hefei (CN);Yizhen Wu. Hefei (CN):Dan Ni.Hefei (CN):Fang 8.681.739B1*3/2014Zha0, H04W76/15 370/331 Yu,Beijing (CN) 2010/0035578A1*2/2010 Ahmed..H04W12/06 455/411 (73)Assignees:Huawei Technologies Co.,Ltd., (Continued) Shenzhen (CN):University of Science and Technology of China,Hefei (CN) FOREIGN PATENT DOCUMENTS (*Notice: Subject to any disclaimer,the term of this CN 101848454A 9/2010 patent is extended or adjusted under 35 CN 101902792A 12/2010 U.S.C.154(b)by 159 days. OTHER PUBLICATIONS (21)Appl.No:15/360,831 Liu et al.,"Mobility Support in Software Defined Networking (22)Filed: Now.23,2016 draft-liu-sdn-mobility-00,"Informational,Internet-Draft,Network Working Group (Jul.8,2013). (65) Prior Publication Data (Continued) US2017/0079000A1Mar.16.2017 Primary Examiner-Kevin D Mew (74)Attorney,Agent,or Firm-Leydig,Voit Mayer, Ltd. Related U.S.Application Data (57) ABSTRACT (63)Continuation of application No A binding registration method includes:an SDN controller PCT/CN2014/078310.filed on May23.2014. receiving a first bearer message that is forwarded by a first MAG in multiple MAGs and that carries a first L2 attach (51)Int.Cl. request message;sending,to each of the first MAG and an H04W8/06 (2009.01) LMA,a message for establishing a tunnel between the first H04W60/04 (2009.01) MAG and the LMA:sending,to each of the first MAG and (Continued) the LMA,a message for adjusting a flow entry of an MN; (52)U.S.C1. configuring an HNP(s)for the MN,and encapsulating the CPC… H04Ψ60/04(2013.01)：H04L12/4633 HNP(s)into an RA message;and sending the RA message (2013.01):104L612038(2013.01): to the first MAG. (Continued) 20 Claims,10 Drawing Sheets 10 一130 130 N RAUS010257802B2 ( 12 ) United States Patent Xue et al . ( 10 ) Patent No . : US 10 , 257 , 802 B2 ( 45 ) Date of Patent : Apr . 9 , 2019 ( 54 ) BINDING REGISTRATION METHOD , DATA FORWARDING METHOD , RELATED DEVICE , AND NETWORK SYSTEM ( 58 ) Field of Classification Search CPC . . . . . . . H04W 60 / 04 ; HO4W 8 / 06 ; H04W 8 / 082 ; HOW 8 / 10 ; H04W 40 / 00 ; HOLL 12 / 4633 ; H04L 61 / 2038 ; H04L 61 / 305 See application file for complete search history . ( 56 ) References Cited U . S . PATENT DOCUMENTS ( 71 ) Applicants : Huawei Technologies Co . , Ltd . , Shenzhen ( CN ) ; University of Science and Technology of China , Hefei ( CN ) ( 72 ) Inventors : Kaiping Xue , Hefei ( CN ) ; Yizhen Wu , Hefei ( CN ) ; Dan Ni , Hefei ( CN ) ; Fang Yu , Beijing ( CN ) 8 , 681 , 739 B1 * 2010 / 0035578 A1 * 3 / 2014 Zhao . . . . . . . . . . . . . . . . . . H04W 76 / 15 370 / 331 2 / 2010 Ahmed . . . . . . . . . . . . . . . . . H04W 12 / 06 455 / 411 ( Continued ) ( 73 ) Assignees : Huawei Technologies Co . , Ltd . , Shenzhen ( CN ) ; University of Science and Technology of China , Hefei ( CN ) FOREIGN PATENT DOCUMENTS ( * ) Notice : Subject to any disclaimer , the term of this CN CN 101848454 A 101902792 A 9 / 2010 12 / 2010 U . S . C . 154 ( b ) by 159 days . OTHER PUBLICATIONS ( 21 ) Appl . No . : 15 / 360 , 831 ( 22 ) Filed : Nov . 23 , 2016 ( 65 ) Prior Publication Data US 2017 / 0079000 A1 Mar . 16 , 2017 Related U . S . Application Data ( 63 ) Continuation of application PCT / CN2014 / 078310 , filed on May 23 , 2014 . No . Liu et al . , “ Mobility Support in Software Defined Networking draft - liu - sdn - mobility - 00 , ” Informational , Internet - Draft , Network Working Group ( Jul . 8 , 2013 ) . ( Continued ) Primary Examiner - Kevin D Mew ( 74 ) Attorney , Agent , or Firm — Leydig , Voit & Mayer , Ltd . ( 57 ) ABSTRACT A binding registration method includes : an SDN controller receiving a first bearer message that is forwarded by a first MAG in multiple MAGs and that carries a first L2 attach request message ; sending , to each of the first MAG and an LMA , a message for establishing a tunnel between the first MAG and the LMA , sending , to each of the first MAG and the LMA , a message for adjusting a flow entry of an MN ; configuring an HNP ( s ) for the MN , and encapsulating the HNP ( s ) into an RA message ; and sending the RA message to the first MAG . 20 Claims , 10 Drawing Sheets ( 51 ) Int . Ci . H04W 8 / 06 ( 2009 . 01 ) H04W 60 / 04 ( 2009 . 01 ) ( Continued ) ( 52 ) U . S . CI . CPC . . . . . . . . . H04W 60 / 04 ( 2013 . 01 ) ; H04L 12 / 4633 ( 2013 . 01 ) ; H04L 61 / 2038 ( 2013 . 01 ) ; ( Continued ) 1301 An SDN controller receives a first bcarcr message that is forwarded by a first MAG in multiple MAGs and V that carries a first 12 allach request message , so that an MN requests to register with a network 1302 1303 The SDN controller sends a first establishment message to the first MAG The SDN controller sends a second establishmetit message to an LMA 1304 1305 The SDN controller sends a ( irst adjustment message to the first MAG The SDN controller sends a sccond adjustinent message to the LMA The SDN controller configures an HNP ( s ) for the MN , encapsulates the 1 1306 IINP ( s ) into an RA message , and sends thc RA message to the first MAG - 1307 When the MN needs to be switched from the first MAG lo a second MAG in the multiplc MAGs , the SDN controller receives a second bearer message that is forwarded by the second MAG and that carries a second L2 attach request message , to request the MN to register with the network The SDN controller sends , to each of the socond MAG and the LMA , a - 1308 message for establishing a lunnel between the second MAG and the LMA , to establish the tunnel between the second MAG and thc LMA The SDN Controller sends , to each of the second MAG and the LMA , a 1 - 1309 message for adjusting allow entry of the MN 1310 HNP ( S ) into the RA message , and sends the RA message to the second MAG , so that the MN is registered with the network when the MN receives the RA message from the second MAG