Patent SG-11201908519S-A (SG)
Title: Back-off timer for network reattachment
Inventor: HIETALAHTI HANNU
IPC: H04W48/00
Filed: 2017-03-15
Abstract: O O (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 20 September 2018 (20.09.2018) W I POI PCT II mit Ill °nolo Kimono oimIE (10) International Publication Number WO 2018/169523 Al (51) International Patent Classification: H04W 28/00 (2009.01) H04W 48/00 (2009.01) H04W 28/02 (2009.01) H04W 60/00 (2009.01) H04 W 28/10 (2009.01) H04W 76/00 (2009.01) (21) International Application Number: PCT/US2017/022494 (22) International Filing Date: 15 March 2017 (15.03.2017) (25) Filing Language: English (26) Publication Language: English (71) Applicant: NOKIA SOLUTIONS AND NETWORKS OY [FI/FI]; Karaportti 3, FIN-02610 Espoo (FI). (72) Inventors; and (71) Applicants (for SC, TT only): HIETALAHTI, Han- nu, Petri [FI/FI]; Uhanperatie 38, 90810 Kiviniemi (FI). KOSKINEN, Jussi-pekka [MI]; Kipinakuja 10, 90420 Oulu (FI). LIU, Jennifer [US/US]; 3104 Oak Springs Dri- ve, Plano, TX 75025 (US). (74) Agent: GOLDHUSH, Douglas H. et al.; Squire Patton Boggs (US) LLP, 8000 Towers Crescent Dr., 14th Floor, Vienna, VA 22182-6212 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (54) Title: BACK-OFF TIMER FOR NETWORK REATTACHMENT Rate Control when the UE is attached 110 Normal use case: Rate control = 5 messages per hour (T = CloT UE transmits UL Data) Attach (RC quota) Quota is used up II TT TT T t 0 Out of quota UL data may continue in new time unit T T TT T 1 hour 120 Possible misuse: UE detaches to receive new Rate Control quota in re-attach UE detach + re-attach = new RC quota TTTT T TTT T 0 1 hour 121 122 Figure 1 (57) : Various communication systems may benefit from improved network signaling or attachment. A method, in certain embodiments, may include receiving at a network node an initial attachment request message from a user equipment. The method may also include issuing a back-off timer when accepting the initial attachment request from the user equipment. The back-off timer may include a duration of time in which the user equipment is not allowed to reattach to a network. In addition, the method may include receiving at the network node another attachment request message from the user equipment. Further, the method may include determining whether the duration of the back-off timer has lapsed, and rejecting the another attachment request from the user equipment when the duration of time of the back-off timer has not lapsed. [Continued on next page] WO 2018/169523 Al MIDEDIMOMBIRDIEMMOMOHINIMIMMOVOIS MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))