[移动通讯]【Carrier Aggregation in LTE】【 Log analysis-2】

前言：

接 $移动通讯$ 【Carrier Aggregation in LTE】【 Theory + Log analysis-1】

这里面主要讲解一下日志分析

总体流程
UE Capbaility Information
MeasurementReport
RRC Connection Reconfiguration
RRCConnectionReconfigurationComplete
MAC层作用
物理层作用

一总体流程

二 UE Capbaility Information

2.1 主要参数

|----------------------------------|
| 主要参数 |
| accessStatumRelease |
| ue-category: |
| supporteBbandList |
| supportedBandcombination_r10 |
| featureGroupRel10 |
| supportedbandwidthcombinationset |

2.2 accessStatumRelease

接入层协议版本,10

2.3 UE-category:

我这边是4：

Max.data rate(DL/UL): 150/50

Support for 64QAM: No

2.4 supporteBbandList:

支持的band 1:3:38:39:40:41

2.4 supportedBandcombination_r10

结合前面讲过intra_band，inter_band三种场景

2.5 featureGroupRel10

|--------------|-----------------------------------------------------------------------------------------------------------------------------------------|----------|
| FGI bits | 作用 | 前提 |
| 111 | Measurement reporting trigger Event A6 | UE 支持 CA |
| 112 | Scell addition within the Handover to EUTRA procedure | UE 支持 CA |
| 113 | Trigger type 0 SRS(periodic SRS) transmission on X serving cells. X =number of supported component carriers in a given band combination | UE 支持 CA |

2.6 supportedbandwidthcombinationset

3GPP TS 38.306

supportedBandwidthCombinationSet Defines the supported bandwidth combination for the band combination set as defined in the TS 38.101-1 $2$ , TS 38.101-2 $3$ and TS 38.101-3 $4$ . Field encoded as a bit map, where bit N is set to "1" if UE support Bandwidth Combination Set N for this band combination as defined in the TS 38.101-1 $2$ , TS 38.101-2 $3$ and TS 38.101-3 $4$ . The leading / leftmost bit (bit 0) corresponds to the Bandwidth Combination Set 0, the next bit corresponds to the Bandwidth Combination Set 1 and so on.

最左边的比特（比特0）对应于带宽组合集0，下一个比特对应于带宽合并集1，依此类推