Communication apparatus and method for controlling communication apparatus

88 Pages·2013·3.52 MB·English

US008396048B2
(12) United States Patent (10) Patent N0.: US 8,396,048 B2
Yamane (45) Date of Patent: Mar. 12, 2013
(54) COMMUNICATION APPARATUS AND FOREIGN PATENT DOCUMENTS
METHOD FOR CONTROLLING JP 200l-0l6258 l/200l
COMMUNICATION APPARATUS JP 2006-013640 l/2006
JP 2006-2ll6l4 8/2006
(75) Inventor: ShinjiYamane, Kawasaki (JP) JP 2006-262ll9 9/2006
OTHER PUBLICATIONS
(73) Assignee: Fujitsu Limited, Kawasaki (JP) K. Nishida, et al; “NETLMM Protocol Applicability Analysis for
3GPP SAE Network”; Dated Nov. 7, 2006 URL: http://www2.tools.
( * ) Notice: Subject to any disclaimer, the term of this ietf or URL: http://g/html/draft-nishida-netlmm-protocol-.
patent is extended or adjusted under 35 3GPP TS 36.413 V8.0.0; 3rd Generation Partnership Project; Tech
U.S.C. l54(b) by 942 days. nical Speci?cation Group Radio Access Network; “Evolved Univer
sal Terrestrial Access Network (E-UTRAN);” Sl Application Proto
col (SlAP) (Release 8); Dec. 2007 URL: http://www.3gpp.org/ftp/
(21) App1.N0.: 12/405,470
Spec s/html-info/364 l3 .htrn.
3GPP TS 36.423 V8.0.0; 3rd Generation Partnership Project; Tech
(22) Filed: Mar. 17,2009 nical Speci?cation Group Radio Access Network; “Evolved Univer
sal Terrestrial Radio Access Network (EUTRAN);” X2 application
(65) Prior Publication Data protocol (X2AP) (Release 8); Dec. 2007 URL: http://www.3gpp.org/
ftp/ Spec s/html-info/ 3 6423 .htrn.
US 2009/0238115 A1 Sep. 24, 2009
WiMAX Forum Network Architecture (Stage 2: Architecture Tenets,
Reference Model and Reference Points) [WiMAX Interworking with
(30) Foreign Application Priority Data
DSL] Release 1.0.0; WiMAX Forum Proprietary; Mar. 28, 2007.
(Continued)
Mar. 21, 2008 (JP) ............................... .. 2008-074305
Primary Examiner * AyaZ Sheikh
(51) Int. Cl.
Assistant Examiner * Sori Aga
H04] 3/24 (2006.01)
(74) Attorney, Agent, or Firm * Myers Wolin, LLC
H04W 4/00 (2009.01)
H04L 12/28 (2006.01) (57) ABSTRACT
A communication apparatus provides a ?rst transfer unit for
(52) US. Cl. ....................... .. 370/349; 370/328; 370/351 transferring a ?rst packet received from a base station to a
second home agent, the ?rst packet to be sent from a ?rst
(58) Field of Classi?cation Search ...................... .. None mobile station to a second mobile station as a destination, the
See application ?le for complete search history. ?rst terminal and the second terminal being managed by a ?rst
home agent and the second home agent respectively, a second
(56) References Cited transfer unit for transferring the ?rst packet sent back from the
second home agent to the base station, and a return instruction
U.S. PATENT DOCUMENTS unit for issuing to the base station an instruction for directly
2005/00581 19 Al * 3/2005 Inouchi et al. .............. .. 370/351 transferring a second packet to the second mobile station
2006/0209697 Al 9/2006 Fujino when a predetermined condition is satis?ed.
2007/0147304 Al * 6/2007 Jagana et al. ............... .. 370/331
2007/0253371 Al * ll/2007 Harper et al. ............... .. 370/331 7 Claims, 68 Drawing Sheets
'4 (a) INSTRUCTION OF RETURN
US 8,396,048 B2
Page 2
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and Procedures) Release 1.0.0; WiMAX Forum Proprietary; Mar. 28,
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US. Patent Mar. 12, 2013 Sheet 1 0f 68 US 8,396,048 B2
M81
PZP/FTP
I...
IIIIIIIIIIIIIIIII II...- by
OFFER/PACK/ ...................... .. _ ..... .'
FROM DHCP
US. Patent Mar. 12, 2013 Sheet 2 0f 68 US 8,396,048 B2
Fig. 3
US. Patent Mar. 12, 2013 Sheet 3 0f 68 US 8,396,048 B2
ROUTER
IPS
‘ ‘ - I I I I .
m
Q’Eg mm g
US. Patent Mar. 12, 2013 Sheet 4 0f 68 US 8,396,048 B2
Qmmwohrw5e?:‘.
EIEIIIIEI
m.m_n_
US. Patent Mar. 12, 2013 Sheet 5 0f 68 US 8,396,048 B2
IP (Local) : > IP (Local) IP (Global)
2 802.16 0 802.16 GRE » GRE
2 MAC MAC 1P <ASN> » IP (ASN) 8023/
5 Ethernet
802.16 802.16 8023/ 0 802-3/
PHY 9 PHY Ethernet _Ethernet
PHY +> PHY PHY
MS BS ASN-GW (FA)
Fig. 6
IP (Local) = lP (Local) lP (Global)
PDCP = PDCP
g , GTP-U/GRE +- GTP—U/GRE E8g28/t
w RLC RLC IP (E-UTRANM-vlp <E-UTRAN> eme
, 802.3/ 802.3/
MAC ‘ MAC Ethernet 0 Ethernet
PHY = PHY PHY <-> PHY PHY
MS eNB aGW
Fig. 7
US. Patent Mar. 12, 2013 Sheet 6 0f 68 US 8,396,048 B2
IP (Global) = > IP (Local) “3 (Local)
0 PDCP “IPDCP GTP-U/GRE = : GTP-U/GRE
a RLC 0 RLC 1P (E-UTRAN) < > IP (E_UTRAN) Eg?gl-g/et
802.3/ , 802.3/
MAC "'| MAC Ethernet ‘ Ethernet
PHY pl PHY PHY = V PHY PHY
MS eNB aGW
Fig. 8
,l (a) INSTRUCTION OF RETURN
Fig. 9