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发表于 2020-9-18 07:35:06
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中移2.6G频率基础信息配置
[img=41,360]blob:/cb85e5c3-3bed-45cf-b5f0-bab9eb29b33c[/img]2515MHz
[img=41,108]blob:/bd95225f-8ddf-46c1-999d-4409e45c597a[/img][img=41,119]blob:/7a871f15-ad4d-45c5-86d2-ec72f028077e[/img]2575MHz
2615MHz
Cell:60MHz Cell freq:2544.9MHz Ssb freq : 2523.75MHz Ssb GSCN : 6309
Cell:100MHz Cell freq:2565MHz Ssb freq : 2524.95MHz Ssb GSCN : 6312
[img=41,360]blob:/9f5fbe18-605b-4b13-a5e9-85354137af71[/img]2675MHz
t
中移2.6G频率基础信息配置-60M&100M小区SSB对齐
[img=41,360]blob:/7b8552f1-1218-4f26-9ea6-485cd8acbfec[/img]2515MHz
[img=41,108]blob:/82e6c69c-c62a-4df9-96b0-6622c4db2d1d[/img][img=41,119]blob:/7886d28c-5b99-4cb5-8424-a99b01f7187d[/img]2575MHz
2615MHz
Cell:60MHz Cell freq:2545.02MHz Ssb freq : 2524.95MHz Ssb GSCN : 6312
Cell:100MHz Cell freq:2565MHz Ssb freq : 2524.95MHz Ssb GSCN : 6312
[img=41,360]blob:/5c9eb4f8-e99f-433e-89e6-92cb930b4fee[/img]2675MHz
正在载入…
空口前台关键信令[接入] 概况
[img=212,405]blob:/999bea19-e579-45f6-86af-09446c8402c6[/img][img=187,247]blob:/a8c9e0b1-fba9-45b1-9681-cfdf9a4c0704[/img]
LTE接入流程
[img=142,59]blob:/1eaebb9a-2cb0-4718-87a8-78e735a7b138[/img][img=161,74]blob:/edf5f4a0-c71f-48e0-ac17-7f82e03d02e6[/img]
NR-B1测量控制
[img=127,69]blob:/89f1ba14-e3fd-49c3-baa4-ad0c5456dfb6[/img][img=139,95]blob:/7ee66084-8666-48d8-b472-b311664f9cde[/img]LTE侧-MR[B1]
[img=198,57]blob:/845b3488-f194-487a-bc8b-67e6cc2079d9[/img][img=160,60]blob:/f8e771a6-36c3-4e2c-a011-a22aef49e1d2[/img]辅小区添加CFG
[img=139,72]blob:/a60ed422-6b0f-407f-9eb1-e0f44f909fe7[/img]
[img=138,46]blob:/517ccdb5-98fa-452d-b68f-db2c140cfc80[/img]4G侧5G测量对象移除
[img=168,74]blob:/e0d7624b-3f78-44a9-bbb6-16ffc0bed2d4[/img][img=94,46]blob:/cba660e4-7881-4a8c-ba9e-d8803960e5e1[/img]NR侧-MR[A2/A3]
[img=168,108]blob:/8582e70e-aa25-4a1c-a5c5-d8800e3f43d2[/img][img=130,56]blob:/ff41d27e-2a31-4ebd-9fad-5e89d1745b1c[/img]NSA初始接入和空闲态转连接态整体信令流程
[img=41,360]blob:/5c9eb4f8-e99f-433e-89e6-92cb930b4fee[/img]
正在载入…
[img=159,400]blob:/791c4597-31aa-4034-bd33-b90091b31cc2[/img][img=138,46]blob:/517ccdb5-98fa-452d-b68f-db2c140cfc80[/img]LTE侧系统消息解读
[img=139,72]blob:/a60ed422-6b0f-407f-9eb1-e0f44f909fe7[/img][img=123,92]blob:/b97fec91-59cc-410b-94ad-38beefb0a66a[/img][img=116,216]blob:/e6b8d084-fc1c-46c8-89f4-c17f9f659707[/img][img=161,278]blob:/e72c562f-7934-430a-b8f0-bca9fe3eafa3[/img][img=198,57]blob:/845b3488-f194-487a-bc8b-67e6cc2079d9[/img][img=452,91]blob:/951b1d50-c2d6-45c1-a3ef-f306ee957d4d[/img][img=285,121]blob:/5478e644-8774-4f22-8c29-62bfa6b07abe[/img][img=127,69]blob:/89f1ba14-e3fd-49c3-baa4-ad0c5456dfb6[/img]Lte读取到的sib1消息主要检查以下内容: 1、小区支撑的PLMN列表:[右侧的示例信令标示站点为46000/46007的双PLMN基站] 2、小区的频段信息: [右侧信令标示band3]
[img=108,90]blob:/91ea8f49-bc29-45af-95c6-33d225d24cf7[/img][img=125,50]blob:/410ea774-ba31-44b5-97a9-47df636d61f4[/img]Lte读取到的sib2消息主要检查以下内容: additionalGroupInfo-R15是否存在:目前LTE版本为3.70.20开启endc策略.upperlayerIndication开关=yes的时候,sib2消息带有该内容,ENDC手机解析该内容显示5G图标。
[img=139,95]blob:/7ee66084-8666-48d8-b472-b311664f9cde[/img][img=159,48]blob:/cd6f2892-6e81-48e1-82b3-26159a1638f0[/img][img=44,28]blob:/7b7ec255-1cb4-4486-84f5-90caac94e588[/img][img=46,28]blob:/c1c4261d-213c-4d8f-9ea1-ef08fa7dd3a2[/img][img=72,65]blob:/ff8343d5-a385-4125-9323-0cb45f9cab40[/img][img=72,65]blob:/483e38d9-49aa-46c3-89ab-8101d56a0667[/img][img=72,65]blob:/1ab67236-0a47-49d8-ad18-0ae03bc0f1f4[/img][img=168,74]blob:/e0d7624b-3f78-44a9-bbb6-16ffc0bed2d4[/img]
[img=159,400]blob:/3756d623-76b0-4af2-a2d3-5e997808a2c8[/img]LTE侧RRC Connection Setup Complete选网
[img=266,329]blob:/332d5a06-6adb-4365-9089-592fa08e2a19[/img][img=248,167]blob:/a5e08456-4e78-4a94-b011-e97fb6cb632c[/img]手机上报的RrcConnectionSetupComplete消息里的selectedPLMN-Identity字段告诉基站PLMN的选网信息,基站把相应的attachREQ信息转发到对应的核心网。 [右边信令标示本次选网为PLMNID=2,结合sib1消息,PLMNID=2对应的是46007的网络]
[img=72,65]blob:/497e3bb1-b5e2-4d14-b8b1-bfd9fefce67d[/img]
[img=159,400]blob:/a242152f-4438-4f70-96af-8489829cf690[/img]LTE 两次UE能力识别过程
[img=248,167]blob:/a5e08456-4e78-4a94-b011-e97fb6cb632c[/img][img=117,110]blob:/ad2fd41f-da12-4463-bae8-8b5db94a8f31[/img][img=210,167]blob:/a9fe7824-8150-4b0b-8251-e74a042f147b[/img][img=65,62]blob:/68e72e00-7dff-452c-8b76-4ea4b21f4f14[/img][img=222,98]blob:/79fac61f-8875-4323-b5d1-f79e7ef11e3a[/img][img=312,82]blob:/26434988-98ee-4778-974b-c34382e784f2[/img][img=117,99]blob:/5ebb918c-be5e-4f17-882d-6088573eb02a[/img][img=151,195]blob:/4f67ea13-159c-4793-b9ed-09e136baf0f7[/img][img=168,108]blob:/8582e70e-aa25-4a1c-a5c5-d8800e3f43d2[/img][img=127,69]blob:/89f1ba14-e3fd-49c3-baa4-ad0c5456dfb6[/img][img=278,244]blob:/04ff9680-8254-4ef9-8c92-2f5efe6d13d2[/img][img=91,79]blob:/db95bf59-9f47-4878-9bcc-af25cf88745d[/img]第一次识别
[img=161,74]blob:/edf5f4a0-c71f-48e0-ac17-7f82e03d02e6[/img]第一次上报
第二次识别
第二次上报
[img=452,91]blob:/951b1d50-c2d6-45c1-a3ef-f306ee957d4d[/img]手机第一上报UE能力,携带en-DC-r15 = supported,标示手机支撑ENDC能力。 基站识别改字段后进行第二次UE能力识别。 [右边信令大家主要关注手机上报的ENDC能力当中的频段组合]
[img=90,90]blob:/a4ddd885-1f0e-49d9-99cd-65e8df16ebe3[/img][img=81,75]blob:/9ed077ed-9e97-44e8-94cc-481a04020e19[/img][img=88,80]blob:/cc403d06-25d8-4686-97d1-2920ddad151e[/img][img=75,79]blob:/0b586fe2-8b8f-4f1c-9832-56fa2862f971[/img]
[左边信令频段组合有 Band3+N41 Band3+N77 Band3+N78 Band3+N79]
[img=159,400]blob:/0bd7ad7a-be91-4fc5-8922-24755dbf7682[/img]LTE侧B1测量CFG下发
[img=147,204]blob:/cc38fde0-2733-4d3a-907e-ad25eda4d876[/img][img=151,215]blob:/a14275b1-1f54-4dfd-8684-bf80f914218f[/img][img=160,151]blob:/6b7068bc-4a0a-43ed-be41-43e4aa05c542[/img]
[img=312,82]blob:/26434988-98ee-4778-974b-c34382e784f2[/img]测量对象
事件报告
测量ID
测量对象 measOBJ=1 1300[20Mhz] measOBJ=2 504750[SSB] 事件报告 reportID =1 A3 reportID =2 A2 reportID =3 B1 [门限-140dBm] 测量ID MEASID =1 measOBJ=1 + reportID =1[同频A3] MEASID =2 measOBJ=1 + reportID =2[异系统A2] MEASID =3 measOBJ=2 + reportID =3[异系统B1]
[手机拿到测量任务开启测量5G,满足MEASID=3的B1事件,上报NR的MR]
[img=159,400]blob:/f0fd49ea-107c-43a1-9cfb-9d5e3eeb299a[/img]LTE侧辅小区添加CFG下发
[img=222,98]blob:/79fac61f-8875-4323-b5d1-f79e7ef11e3a[/img][img=224,309]blob:/d984d94a-6ec3-4b6a-bfcd-5cecef6adb01[/img][img=149,87]blob:/cee89277-1d19-4d62-9dec-8006244f76cb[/img][img=271,166]blob:/376d29fb-6085-453e-b02c-7c922a938519[/img]
[img=112,178]blob:/dd08528a-a316-4833-820b-61488ab540ac[/img][img=124,177]blob:/fa650a65-7e04-44fb-8b72-5f7a63fc28c1[/img]
[img=61,139]blob:/a41d8fc5-94c0-4ff8-b40c-fbafb54082ae[/img][img=203,238]blob:/6bb39d22-15ca-46ff-919c-a0dc071b2f56[/img][img=129,69]blob:/86d83d04-5d02-4589-b437-1b4fe0e3d025[/img]辅小区添加的重配,内容很多,大家主要关注spCellConigCommon消息里的NR-SSB-FREQ和PCI信息; 测量控制中是否有A3的事件报告。
辅小区添加的重配置消息,如果手机校验不通过,高通手机不回复RRCReCFGComplete消息,直接发起RRC重建立请求,重建立的原因是CFG失败;海思终端回复RRCReCFGComplete消息,然后发起other原因的RRC重建立请求。
如果遇到类似的辅小区添加的CFG消息后发起重建,可以用正常的辅小区添加CFG小区去比对,从差异中判断是小区哪里的配置问题。
已知的几点重建问题原因: 1、LTE&NR DRB3的RLC模式不一致[AM/UM] 2、高通终端不支撑上行256QAM 3、高通不支撑2.6的SRS端口轮发 4、海思不支撑SRS端口轮发 5、NSA手机LTE&NR制式线性功率超过26dBm 6、NSA手机上行只支撑单流
[img=159,400]blob:/b906ddaf-5555-4678-83e0-9d768e1e1e90[/img]
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