《 空中接口学园 》 >> PHS技术 >>>> 求救?基站总需要第二次分配链路? |
-- 作者:FreeRun -- 发布时间:2004-08-10 08:59:23 有一个室内分布系统,信源使用的是中兴CS28组控基站,接着使用PHS干放进行信号的放大,现在发现一个问题,在室内做呼叫测试时,基站第一次分配TCH载频和时隙后,手机都没有响应,最后导致TCH同步超时(--[<TCH Synchronize Time's up]--),紧接着基站第二次分配TCH载频和时隙,手机才有响应,手机给基站发送TCH同步突法脉冲(CS<-PS TCH syn. burst ),整个呼叫才能继续。在拨打电话时,手机侧听到一声“嘀”,接着才能听到对方的回铃声。 在19次呼叫中,有17次出现上面的问题,即基站需要进行第二次链路分配才能正常通信。呼叫使用的UT318型手机,拨打10000号,测试时间为星期六上午,话务不繁忙,同时测试位置基站信号场强很高,大于50dBuv,没有误码。用PHS35L仔细查看这19次呼叫的链路协议,第二次分配的TCH载频没有规律,19到50号载频都有,结合PHS35L的同步和频谱测试,整个网络是同步的,没有大的干扰。最后比较2次成功的和17次需二次分配的测试,发现了些问题。那2次成功的呼叫,基站第一次分配TCH载频是在手机请求后的100ms发起的(如:167ms、153ms),而其他的17次呼叫,基站发起的第一次TCH载频分配是在100mS内(比如:82ms、62ms、87ms、72ms、52ms、77ms...)。 是什么导致基站需第二次分配链路,呼叫才能成功呢? 对这个问题,本人甚感迷惑,附上相关的协议,敬请各位大侠指教!谢谢! -- 作者:FreeRun -- 发布时间:2004-08-10 09:01:37 相关协议:17次基站第一次分配不成功的例子 --- Date/Time[04.08.06/11:21:41] (0)[CS-ID:80F608401D8] / [PS-ID:6FA5D61] || 0.00000||0 CS<-PS Link cha. request:SCCH[0102020C00][ 80]dBuV || 57.50417||0 CS->PS Link cha. assig. :SCCH[0106072601][ 53]dBuV Relative Slot[8]/Carrier No.[38]/Contr.Slot.No.[2]/Commu.Slot.No[1] || 254.82167||0 --[<TCH Synchronize Time's up]-- || 357.50375||0 CS->PS Link cha. assig. :SCCH[0106072001][ 56]dBuV Relative Slot[8]/Carrier No.[32]/Contr.Slot.No.[2]/Commu.Slot.No[1] || 399.37375||0 CS<-PS TCH syn. burst :Sync[0000000000][ 61]dBuV || 406.87792||0 CS->PS TCH syn. burst :Sync[0000000000][ 62]dBuV || 414.18708||0 --<< Sync off || 414.18708||0 -<- Idle TCH [8000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF] || 421.69083||0 -->> Sync off || 421.69083||0 ->- Idle TCH [80001F1F11F11F1F11FF11F1F11FF11F1F1F111F1F1F] || 439.18750||0 :<F10:U(3F) SABM [P=1] [] || 446.69125||0 :>F10:U(73) UA [F=1] [] || 449.18708||0 :<S10:U(3F) SABM [P=1] [] || 461.69125||0 :>S10:U(73) UA [F=1] [] || 479.18708||0 <<F10:I(00) I [N(R)=0 P=0 N(S)=0] [450103050403808CA46C0E008030303230] || 494.18708||0 :<F10:I(12) I [N(R)=0 P=1 N(S)=1] [35313232373038337006803130303030] || 494.18708||0 <[45010305] <CC SETUP CC [Bearer Capability:0403808CA4] CC [Calling Party number:6C0E0080303032303531323237303833] CC [Called Party number:7006803130303030] || 501.69125||0 :>F10:S(51) RR [N(R)=2 F=1] [] || 521.69125||0 :>F11:I(50) I [N(R)=2 P=1 N(S)=0] [45018302] || 521.69125||0 >[45018302] >CC CALL PROC || 534.18708||0 :<F11:S(31) RR [N(R)=1 F=1] [] || 549.18708||0 :<F10:I(34) I [N(R)=1 P=1 N(S)=2] [430181] || 549.18708||0 <[4301] <RT DIRq RT [Definition Info.Req.:81] || 556.69125||0 :>F10:S(71) RR [N(R)=3 F=1] [] || 561.69125||0 :>F11:I(72) I [N(R)=3 P=1 N(S)=1] [4302013F3C39422C6005] || 561.69125||0 >[4302] >RT DIRs RT [Area Info.:013F3C39422C6005] || 574.18750||0 :<F11:S(51) RR [N(R)=2 F=1] [] || 589.18750||0 :<F10:I(56) I [N(R)=2 P=1 N(S)=3] [43040910001507C0] || 589.18750||0 <[4304] <RT FRq RT [Encryption:091000] RT [TCH Reassign:1507] RT [Zone Info.Indicat.Func.:C0] || 596.69125||0 :>F10:S(91) RR [N(R)=4 F=1] [] || 601.69125||0 :>F11:I(94) I [N(R)=4 P=1 N(S)=2] [43050910001517C0] || 601.69125||0 >[4305] >RT FRs RT [Encryption:091000] RT [TCH Reassign:1517] RT [Zone Info.Indicat.Func.:C0] || 614.18750||0 :<F11:S(71) RR [N(R)=3 F=1] [] || 629.18708||0 :<F10:I(78) I [N(R)=3 P=1 N(S)=4] [43030910000D026FA5] || 629.18708||0 <[4303] <RT EKS RT [Encryption:091000] RT [Encryption Key Set:0D026FA5] || 636.69167||0 :>F10:S(B1) RR [N(R)=5 F=1] [] || 901.69208||0 :>F11:I(B6) I [N(R)=5 P=1 N(S)=3] [440106010708F05B5FB1A7D50029] || 901.69208||0 >[4401] >MM ARq MM [Authentication Type:0601] MM [Authentication Random Pattern:0708F05B5FB1A7D50029] || 914.18750||0 :<F11:S(91) RR [N(R)=4 F=1] [] || 934.18792||0 :<F10:I(9A) I [N(R)=4 P=1 N(S)=5] [44020508BD0F5B7DCB392EDE] || 934.18792||0 <[4402] <MM ARs MM [Active Chipherring Pattern:0508BD0F5B7DCB392EDE] || 941.69208||0 :>F10:S(D1) RR [N(R)=6 F=1] [] || 946.69208||0 :>F11:U(53) DISC [P=1] [] || 959.18792||0 :<F11:U(73) UA [F=1] [] [11:21:42]>{64dBuV ERR( 0, 0)} || 1136.69250||0 >>S11:I(00) I [N(R)=0 P=0 N(S)=0] [4501] || 1146.69250||0 >>S11:I(02) I [N(R)=0 P=0 N(S)=1] [8301] || 1156.69250||0 >>S11:I(04) I [N(R)=0 P=0 N(S)=2] [1E02] || 1166.69250||0 :>S11:I(16) I [N(R)=0 P=1 N(S)=3] [8088] || 1166.69250||0 >[45018301] >CC ALERT CC [Progress Indicator:1E028088] || 1179.18792||0 :<S11:S(91) RR [N(R)=4 F=1] [] [11:21:43]<{52dBuV ERR( 0, 0)} || 1946.69375||0 >>S11:I(08) I [N(R)=0 P=0 N(S)=4] [4501] || 1956.69375||0 :>S11:I(1A) I [N(R)=0 P=1 N(S)=5] [8307] || 1956.69375||0 >[45018307] >CC CONN -- 作者:FreeRun -- 发布时间:2004-08-10 09:04:39 相关协议:2次基站第一次分配成功的例子 --- Date/Time[04.08.06/11:13:35] (0)[CS-ID:80F608401D8] / [PS-ID:6FA5D61] || 0.00000||0 CS<-PS Link cha. request:SCCH[0102020E00][ 56]dBuV || 167.50333||0 CS->PS Link cha. assig. :SCCH[0106072B01][ 52]dBuV Relative Slot[8]/Carrier No.[43]/Contr.Slot.No.[2]/Commu.Slot.No[1] || 214.37583||0 CS<-PS TCH syn. burst :Sync[0000000000][ 56]dBuV || 216.87792||0 CS->PS TCH syn. burst :Sync[0000000000][ 52]dBuV || 224.18708||0 --<< Sync off || 224.18708||0 -<- Idle TCH [8000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF] || 231.69083||0 -->> Sync off || 231.69083||0 ->- Idle TCH [8000FF11F1F111F1F111FF1F111F1FF1F1F11F1F111F] || 249.18708||0 :<F10:U(3F) SABM [P=1] [] || 256.69083||0 :>F10:U(73) UA [F=1] [] || 259.18667||0 :<S10:U(3F) SABM [P=1] [] || 271.69083||0 :>S10:U(73) UA [F=1] [] || 289.18667||0 <<F10:I(00) I [N(R)=0 P=0 N(S)=0] [45017E050403808CA46C0E008030303230] || 304.18667||0 :<F10:I(12) I [N(R)=0 P=1 N(S)=1] [35313232373038337006803130303030] || 304.18667||0 <[45017E05] <CC SETUP CC [Bearer Capability:0403808CA4] CC [Calling Party number:6C0E0080303032303531323237303833] CC [Called Party number:7006803130303030] || 311.69083||0 :>F10:S(51) RR [N(R)=2 F=1] [] || 331.69083||0 :>F11:I(50) I [N(R)=2 P=1 N(S)=0] [4501FE02] || 331.69083||0 >[4501FE02] >CC CALL PROC || 344.18667||0 :<F11:S(31) RR [N(R)=1 F=1] [] || 359.18667||0 :<F10:I(34) I [N(R)=1 P=1 N(S)=2] [430181] || 359.18667||0 <[4301] <RT DIRq RT [Definition Info.Req.:81] || 366.69125||0 :>F10:S(71) RR [N(R)=3 F=1] [] || 371.69083||0 :>F11:I(72) I [N(R)=3 P=1 N(S)=1] [4302013F3C39422C6007] || 371.69083||0 >[4302] >RT DIRs RT [Area Info.:013F3C39422C6007] || 384.18708||0 :<F11:S(51) RR [N(R)=2 F=1] [] || 399.18708||0 :<F10:I(56) I [N(R)=2 P=1 N(S)=3] [43040910001507C0] || 399.18708||0 <[4304] <RT FRq RT [Encryption:091000] RT [TCH Reassign:1507] RT [Zone Info.Indicat.Func.:C0] || 406.69125||0 :>F10:S(91) RR [N(R)=4 F=1] [] || 411.69083||0 :>F11:I(94) I [N(R)=4 P=1 N(S)=2] [43050910001517C0] || 411.69083||0 >[4305] >RT FRs RT [Encryption:091000] RT [TCH Reassign:1517] RT [Zone Info.Indicat.Func.:C0] || 424.18708||0 :<F11:S(71) RR [N(R)=3 F=1] [] || 439.18708||0 :<F10:I(78) I [N(R)=3 P=1 N(S)=4] [43030910000D026FA5] || 439.18708||0 <[4303] <RT EKS RT [Encryption:091000] RT [Encryption Key Set:0D026FA5] || 446.69125||0 :>F10:S(B1) RR [N(R)=5 F=1] [] || 691.69167||0 :>F11:I(B6) I [N(R)=5 P=1 N(S)=3] [440106010708849D27BAE814F418] || 691.69167||0 >[4401] >MM ARq MM [Authentication Type:0601] MM [Authentication Random Pattern:0708849D27BAE814F418] || 704.18750||0 :<F11:S(91) RR [N(R)=4 F=1] [] || 724.18750||0 :<F10:I(9A) I [N(R)=4 P=1 N(S)=5] [44020508B40090A845060DF6] || 724.18750||0 <[4402] <MM ARs MM [Active Chipherring Pattern:0508B40090A845060DF6] || 731.69125||0 :>F10:S(D1) RR [N(R)=6 F=1] [] || 736.69167||0 :>F11:U(53) DISC [P=1] [] || 749.18750||0 :<F11:U(73) UA [F=1] [] || 956.69208||0 >>S11:I(00) I [N(R)=0 P=0 N(S)=0] [4501] || 966.69208||0 >>S11:I(02) I [N(R)=0 P=0 N(S)=1] [FE01] || 976.69208||0 >>S11:I(04) I [N(R)=0 P=0 N(S)=2] [1E02] || 986.69167||0 :>S11:I(16) I [N(R)=0 P=1 N(S)=3] [8088] || 986.69167||0 >[4501FE01] >CC ALERT CC [Progress Indicator:1E028088] || 999.18792||0 :<S11:S(91) RR [N(R)=4 F=1] [] || 1721.69333||0 >>S11:I(08) I [N(R)=0 P=0 N(S)=4] [4501] || 1731.69292||0 :>S11:I(1A) I [N(R)=0 P=1 N(S)=5] [FE07] || 1731.69292||0 >[4501FE07] >CC CONN ... ... -- 作者:FreeRun -- 发布时间:2004-08-10 09:32:09 19次测试的统计测试表,其中第7次和第13次是一次分配接入成功的. 测试地点,,XX楼8楼过道和楼梯口处 测试时间,,2004年8月7日上午 PSID,,6FA5D61 拨打序号,时间,CSID,Relative Slot,Carrier No,Contr.Slot.No,Commu.Slot.No,备注,, 1,11:17:20,80F608401D8,2,41,2,3,[<TCH Synchronize Time's up],, 2,45,2,3,OK 2,11:23:56,80F608401D8,8,43,2,1,[<TCH Synchronize Time's up],, 3,48,2,4,OK,, 3,11:24:05,80F608401D8,3,48,2,4,[<TCH Synchronize Time's up],, 2,23,2,3,OK,, 4,11:25:44,80F608401D8,3,33,2,4,[<TCH Synchronize Time's up],, 2,20,2,3,OK,, 5,11:21:41,80F608401D8,8,38,2,1,[<TCH Synchronize Time's up],, 8,32,2,1,OK,, 6,11:21:48,80F608401D8,3,33,2,4,[<TCH Synchronize Time's up],, 3,22,2,4,OK,, 7,11:13:35,80F608401D8,8,43,2,1,OK,, 8,11:13:42,80F608401D8,8,19,2,1,[<TCH Synchronize Time's up],, 2,34,2,3,OK,, 9,11:13:51,80F608401D8,2,32,2,3,[<TCH Synchronize Time's up],, 8,19,2,1,OK,, 10,11:14:02,80F608401D8,3,39,2,4,[<TCH Synchronize Time's up],, 1,21,2,2,OK,, 11,11:14:10,80F608401D8,3,38,2,4,[<TCH Synchronize Time's up],, 3,35,2,4,OK,, 12,11:44:10,80F608401D8,2,38,2,3,[<TCH Synchronize Time's up],, 2,21,2,3,OK,, 13,11:44:26,80F608401D8,8,44,2,1,OK,, 14,11:51:05,80F608401D8,8,34,2,1,[<TCH Synchronize Time's up],, 2,47,2,3,OK,, 15,11:57:06,80F608401D8,8,42,2,1,[<TCH Synchronize Time's up],, 8,18,2,1,OK,, 16,11:57:12,80F608401D8,8,50,2,1,[<TCH Synchronize Time's up],, 8,23,2,1,OK,, 17,11:57:28,80F608401D8,8,50,2,1,[<TCH Synchronize Time's up],, 2,20,2,3,OK,, 18,12:02:37,80F608401D8,8,23,2,1,[<TCH Synchronize Time's up],, 2,23,2,3,OK,, 19,12:02:45,,8,23,2,1,[<TCH Synchronize Time's up],, 8,20,2,1,OK,,
-- 作者:tom -- 发布时间:2004-08-10 09:40:56 奇怪,协议中没有第二次链路分配一说,一旦基站链路分配失败,就需要终端重新发起链路建立请求。 因此,我估计问题出在组控上,也就是组控的两个基站分别向终端分配了链路,终端只使用其中最后的指配。正常情况应该只分配一次链路,不知道这是不是一个新功能。 -- 作者:FreeRun -- 发布时间:2004-08-11 09:45:24 昨天我又去测试了,发现使用UT618没有上述问题,而使用UT318,几乎每次都出现问题(基站需第二次分配TCH信道),难道是手机类型的问题吗??是不是UT318手机对基站在100ms内分配的TCH信道没来得及响应吗?? -- 作者:transmit -- 发布时间:2004-08-11 10:27:07 其他类型的手机呢? -- 作者:华人 -- 发布时间:2004-08-11 12:21:46 第二次请求可能是35没有收到:) 建议对每个Transmitter的每个时隙进行测试:) 还有618的记录可以拿出来看一下呢? -- 作者:FreeRun -- 发布时间:2004-08-12 10:33:20 因为时间很紧,没有那么多的手机类型作测试呀,有机会继续测试吧。不过后来询问局方网管,他们在上个星期对中兴的CS28进行了软件升级,不知道是否给这有关系?? 附带上UT618的测试记录: --- Date/Time[04.08.10/16:56:18] [CS-ID:80F608401D8] / [PS-ID:105361372] || 0.00000||0 < PS SCCH: 0102020E00 56dBuV || 47.50375||0 > CS SCCH: 0106062102 47dBuV (Assigned: Abs.Slot 1 / CarrierNo. 33) || 88.74708||0 < PS SYNC: 0000000000 56dBuV || 98.75292||0 --<< Sync off || 106.25292||0 > CS SYNC: 0000000000 47dBuV || 111.06667||0 -->> Sync off || 111.06667||0 ->- Idle TCH [80003113F21F11 || 113.56250||0 -<- Idle TCH [8000FFFFFFFFFF || 183.56208||0 <[45010405] <CC SETUP CC [Bearer Capability:0403808CA4] CC [Calling Party number:6C0E008030303 CC [Called Party number:7006803130303 || 211.06583||0 >[45018402] >CC CALL PROC || 238.56250||0 <[4301] <RT DIRq RT [Definition Info.Req.:81] || 251.06625||0 >[4302] >RT DIRs RT [Area Info.:013F3C39422C6007] || 278.56250||0 <[4304] <RT FRq RT [Encryption:091000] RT [TCH Reassign:1507] RT [Zone Info.Indicat.Func.:C0] || 291.06625||0 >[4305] >RT FRs RT [Encryption:091000] RT [TCH Reassign:1517] RT [Zone Info.Indicat.Func.:C0] || 318.56208||0 <[4303] <RT EKS RT [Encryption:091000] RT [Encryption Key Set:0D02647A] || 1001.06708||0 >[4401] >MM ARq MM [Authentication Type:0601] MM [Authentication Random Pattern:0708 || 1033.56333||0 <[4402] <MM ARs MM [Active Chipherring Pattern:05083F0 || 1251.06792||0 >[45018401] >CC ALERT CC [Progress Indicator:1E028088] || 1926.06917||0 >[45018407] >CC CONN || 3898.56833||0 <[45010445] <CC DISC CC [Cause:0803008590] || 4071.07208||0 >[4501844D] >CC REL CC [Cause:0803028590] || 4113.56833||0 <[4501045A] <CC REL COMP || 4161.07250||0 >[4322] >RT RDi RT [Cause:0680] RT [CS Ident.:0880F608401D02] RT [PS Ident.:0E647AFD0C] || 4178.56875||0 <[4323] <RT RDiC RT [CS Ident.:0880F608401D02] RT [PS Ident.:0E647AFD0C] || 4283.76875||0 --<< TX off || 4621.26875||0 ->>< TX off --[Wait for a Link Channel Request]-- [CrNo:26] --[Wait for a Link Channel Request]-- [CrNo:26] -- 作者:FreeRun -- 发布时间:2004-08-12 10:35:59 建议对每个Transmitter的每个时隙进行测试?? 怎么测试呀,是对基站每个端口进行测试吗?? 我不是局方的网优人员呀,没机会对基站的每个发射端口进行测试呀? -- 作者:FreeRun -- 发布时间:2004-08-12 11:21:53 今天又拿到两款手机进行测试,发现UT318、UT702-U都需要基站进行二次链路分配,UT618、ZTE767则没有上述问题。测试方法,拨打10000号,每款手机呼叫10次,用PHS35L进行协议链路跟踪。 -- 作者:transmit -- 发布时间:2004-08-12 11:41:35 是否每次不成功时都是基站在100ms以内分配的?如果是那样的话,难道手机侧只能接收100ms以后的下行信号?应该不会啊!至少702-U我以前在Sanyo基站下测过,100ms以内的分配可以成功的呀! 流程如下: [CS-ID:9E04833E278] / [PS-ID:027406D] || 0.00000||0 CS<-PS Link cha. request:SCCH[0102020C00][ 77]dBuV || 77.50250||0 CS->PS Link cha. assig. :SCCH[0106062C02][ 62]dBuV Relative Slot[7]/Carrier No.[44]/Contr.Slot.No.[3]/Commu.Slot.No[1] || 123.74917||0 CS<-PS TCH syn. burst :Sync[0000000000][ 77]dBuV || 131.25208||0 CS->PS TCH syn. burst :Sync[0000000000][ 45]dBuV || 133.75875||0 --<< Sync off || 138.56250||0 -<- Idle TCH || 151.06458||0 -->> Sync off || 151.06458||0 ->- Idle TCH || 173.56208||0 :<F10:U(3F) SABM [P=1] [] || 178.56208||0 :<S10:U(3F) SABM [P=1] [] || 181.06458||0 :>F10:U(73) UA [F=1] [] || 191.06458||0 :>S10:U(73) UA [F=1] [] || 213.56208||0 <<F10:I(00) I [N(R)=0 P=0 N(S)=0] [450101050403808CA46C0E008030353734] || 218.56208||0 <<F10:I(02) I [N(R)=0 P=0 N(S)=1] [3636363131303432700980363636313130] || 223.56208||0 :<F10:I(14) I [N(R)=0 P=1 N(S)=2] [3439] || 223.56208||0 <[45010105] <CC SETUP CC [Bearer Capability:0403808CA4] -- 作者:FreeRun -- 发布时间:2004-08-13 10:02:59 是呀,每次基站在100ms以内分配TCH信道,UT702-U、UT318都需要基站进行二次链路分配,而基站类型是中兴的CS28基站。而ZTE767和UT618则没有这个问题,我测了好多次啦??奇怪啦??如果这样的话,忙时会对网络造成多大的影响呢?? 目前已经有13条评论 >>> 发表你的见解 |
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