Patent CA-3015370-A1 (CA)
Inventor: KLACAR NEVEN
IPC: G06F1/32
Filed: 2017-03-23
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY  (PCT) (19) World Intellectual Property      ' Organization ....-                                           MD 111110111010101110101110111 OH Ell 11E0 HE IIE OEN International Bureau                .........Ydjd ............. ;,'                                   (10) International Publication Number (43) International Publication Date                   WO 2017/165657 Al 28 September 2017 (28.09.2017) WIPO I P C T (51) International Patent Classification:    (74) Agent: DAVENPORT, Taylor, M.; Withrow & Terran-GO6F 13/42 (2006.01)    GO6F 1/32 (2006.01)     ova, PLLC, 106 Pinedale Springs Way, Cary, North Caro -lina 27511 (US). (21) International Application Number: PCT/US2017/023832 (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, 23 March 2017 (23.03.2017) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, (25) Filing Language:                           English    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, (26) Publication Language:                      English    KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (30) Priority Data:                             MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, 62/312,303                         23 March 2016 (23.03.2016)    US    NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, 62/417,902                         4 November 2016 (04.11.2016)    US    RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, 15/465,984                         22 March 2017 (22.03.2017)    US    TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (71) Applicant: QUALCOMM INCORPORATED [US/US]; Attn: International IP Administration, 5775 Morehouse (84) Designated States (unless otherwise indicated, for every Drive, San Diego, California 92121-1714 (US).    kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, (72) Inventors: KLACAR, Neven; 5775 Morehouse Drive,    TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, San Diego, California 92121 (US). KRISHNA, Murali;    TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 5775 Morehouse Drive, San Diego, California 92121 (US).    DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, MAHESHWARI, Shailesh; 5775 Morehouse Drive, San    LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, =    Diego, California 92121 (US). RANJAN, Suyash; 5775    SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Morehouse Drive, San Diego, California 92121 (US).    GW, KM, ML, MR, NE, SN, TD, TG). = ROSENBERG, Ofer; 5775 Morehouse Drive, San Diego, California 92121 (US).                      Published: ¨                                               with international search report (Art. 21(3)) = = ____________________________________________________________________________ (54) Title: LINK SPEED CONTROL SYSTEMS FOR POWER OPTIMIZATION = = 800¨cx                                          810 =                          802              ?  ?                                     REDUCE OR INCREASE AN     816 AMOUNT OF RESOURCES                                               rj ESTABLISH A UNK 'MTH                _.., UTILIZED FOR OPERATING    SELECT A  REDUCED LINK     =                 A SECOND DEVICE     THE LINK CORRES,ONDING    SPEED FOR WTH THE 0,,TIMAL UNK     =                                               ¨01 COMMUNICA, ,NG ON THE SPEED                                                      LINK   ?                                               812 =                                           ?  DETECT ONE CR II,TaFtE                                      V     rj =                CONDITIONS AFEECTING A LINK SP:ED WHEREIN                   MEASURE A PERIOD OF        NEGOTIATE  WITH THE =                 EACH CONDI¨ ON S INACTIVITY ON THE LINK                                 SECOND DEVICE TO I  ASSIGNED A WEIGHT                                     CHANGE TO THE REDUCED     =                                                    LINK SPEED i                                806          814 SELECT AN OPTIMAL                             EXCEEDS LINK SPEED FOR                  l       THRESHOLD?     õ,.    REDUCE THE  AMOUNT OF CONIMIJN CATING ON THF                           ' E.    THE RESOURCLS UTIUZED     ¨                LINK BASED ON ¨HE ONE l          FOR OPERA¨ NG THE _ NK OR MORE CONDITIONS                                                 CORRESPONDING W,1",1 NO                                                    THE REDUCED LINK SPEED   i                                808 .4                   NEGOTIATE MTH THE    MAINTAIN OPTIMAL SECOND DEVICE TO                              LINK SPEED     Ir-----          CHANGE IC I IlL OPTIMAL 14r)              LINK SPEEC FOR .                    COMVJNICA TING ON          ----    ( .         822 THE LINK  ir) ,tD                                 FIG. 8 ¨.... IN Il (57) Abstract: Link speed control systems for power optimization are disclosed.ln one aspect, a communication link adjusts a data 0 transfer speed based on link utilization levels.In a second exemplary aspect, one or more conditions affecting a link speed are " weighted and collectively evaluated to determine an efficient or optimal link speed. By adjusting the link speed in this fashion, lower Clink speeds may be used, and net power savings may be effectuated.