前言:
这里面重点讲解一下跟CA 相关的 UL UECapabilityInformation
参考：
LTE附着流程详解-UECapabilityInformation_Amao_come_on的博客-CSDN博客
支持载波聚合的终端(UE)
4G | ShareTechnote
CSDN
CSDN
LTE category New_is lte category supported in the device?_twjy1314的博客-CSDN博客
https://www.ngui.cc/el/1805655.html?action=onClick
CSDN
https://www.ngui.cc/el/1805655.html?action=onClick
一 UL_DCCH / UECapabilityInformation
| 参数 | 定义 |
| supportedBandCombination | 支持的CA 组合信息 |
| CA-Bandwidth Class | ca-BandwidthClassDL-r10 d 连续聚合CC的个数 |
| Supported MIMO for UL & DL | supportedMIMO-CapabilityDL-r10 twoLayers 动态的，不同的Band 不同 |
| ueCapabilityInformation-r8 | 协议版本号 |
| Feature Group Indicator (FGI) | '01111111 11001111 11111110 10011010'B, |
| ue-Category 4 | 定义了上下行速率以及调制方式的支持情况 |
| accessStratumRelease：接入层版本 rel15 | Rel 10 以后才支持CA |
1.1 CA-Bandwidth Class(supportedBandCombination 上下行分开配置）
3GPP 36.101
Table 5.6A-1: CA bandwidth classes and corresponding nominal guard bands
1.2： accessStratumRelease rel15
接入层版本，rel10 以后才支持CA,LTE-A
1.3: ue-Category
Category终端能力等级，表明了终端所支持的数据处理能力（下载、上传速率）、最大的空分复用、调制编码能力等
| eature | LTE ue Cat-1 | LTE ue Cat-2 | LTE ue Cat-3 | LTE ue Cat-4 | LTE ue Cat-5 |
| Data Rate(Mbps) | Downlink(DL) 10, | DL 50, | DL 100, | DL 150, | DL 300, |
| Uplink(UL) 5 | UL 25 | UL 50 | UL 50 | UL 75 | |
| Modulation type supported | DL: | DL: | DL: | DL: | DL: |
| QPSK, | QPSK, | QPSK, | QPSK, | QPSK, | |
| 16QAM, | 16QAM, | 16QAM, | 16QAM, | 16QAM, | |
| 64QAM, | 64QAM, | 64QAM, | 64QAM, | 64QAM, | |
| UL: QPSK, | UL: QPSK, | UL: QPSK, | UL: QPSK, | UL: QPSK, | |
| 16QAM | 16QAM | 16QAM | 16QAM | 16QAM, | |
| 64QAM | |||||
| 2x2 MIMO | Not supported | Mandatory | Mandatory | Mandatory | Mandatory |
| 4x4 MIMO | Not supported | Not supported | Not supported | Not supported | Mandatory |
| Total Layer-2 | 150 000 | 700 000 | 1 400 000 | 1 900 000 | 3 500 000 |
| Buffer Size(Bytes) | |||||
| Max. no. of bits of a | 10296 | 51024 | 75376 | 75376 | 75376 |
| MCH transport block | |||||
| received within a TTI | |||||
| Max. no. of bits of a | 10296 | 51024 | 75376 | 75376 | 149776 |
| DL-SCH transport block | |||||
| received within a TTI | |||||
| Max. no. of supported | 1 | 2 | 2 | 2 | 4 |
| layers for spatial | |||||
| multiplexing in DL | |||||
| Max. no. of bits | 5160 | 25456 | 51024 | 51024 | 75376 |
| of an UL-SCH transport | |||||
| block transmitted | |||||
| within a TTI |
1.4 聚合类型
里面可以看到 Supported MIMO for UL & DL，
如果带上行的是PCC
1.5 FGI(eatureGroupIndicators )
有个在线工具： http://howltestuffworks.blogspot.com/2016/11/lte-feature-group-indicators-decoder.html
索引1是字段中最左边的一位
| FGI bit | |
| featureGroupIndicators | 1-32 |
| featureGroupIndRel9Add | 32-64 |
| featureGroupIndRel10 | 64-128 |
| featureGroupAll |
跟CA 相关的是
| 111 | Measurement reporting trigger Event A6. This bit can be sent to 1 only if the UE supports carrier aggregation. |
| 112 | SCell addition within the Handover to EUTRA procedure This bit can be sent to 1 only if the UE supports carrier aggregation and the Handover to EUTRA procedure. |
| 113 | Trigger type 0 SRS(periodic SRS) transmission on X Serving Cells. NOTE:X=number of supported component carriers in a given band combination.This bit can be set to 1 only if the UE supports carrier aggregation in UL. |
比如：featureGroupIndRel10-r10 '00111100 11101100 00000000 00000000'B, 用工具查看结果
| FGI bit | Definition | Support |
| 101 | - DMRS with OCC (orthogonal cover code) and SGH (sequence group hopping) disabling | Not Supported |
| 102 | - Trigger type 1 SRS (aperiodic SRS) transmission (Up to X ports) | Not Supported |
| NOTE: X = number of supported layers on given band | ||
| 103 | - PDSCH transmission mode 9 when up to 4 CSI reference signal ports are configured | Supported |
| 104 | - PDSCH transmission mode 9 for TDD when 8 CSI reference signal ports are configured | Supported |
| 105 | - Periodic CQI/PMI/RI reporting on PUCCH: Mode 2-0 – UE selected subband CQI without PMI, when PDSCH transmission mode 9 is configured | Supported |
| - Periodic CQI/PMI/RI reporting on PUCCH: Mode 2-1 – UE selected subband CQI with single PMI, when PDSCH transmission mode 9 and up to 4 CSI reference signal ports are configured | ||
| 106 | - Periodic CQI/PMI/RI/PTI reporting on PUCCH: Mode 2-1 – UE selected subband CQI with single PMI, when PDSCH transmission mode 9 and 8 CSI reference signal ports are configured | Supported |
| 107 | - Aperiodic CQI/PMI/RI reporting on PUSCH: Mode 2-0 – UE selected subband CQI without PMI, when PDSCH transmission mode 9 is configured | Not Supported |
| 108 | - Aperiodic CQI/PMI/RI reporting on PUSCH: Mode 2-2 – UE selected subband CQI with multiple PMI, when PDSCH transmission mode 9 and up to 4 CSI reference signal ports are configured | Not Supported |
| - Aperiodic CQI/PMI/RI reporting on PUSCH: Mode 2-2 – UE selected subband CQI with multiple PMI, when PDSCH transmission mode 9 and 8 CSI reference signal ports are configured | ||
| 109 | - Periodic CQI/PMI/RI reporting on PUCCH Mode 1-1, submode 1 | Supported |
| 110 | - Periodic CQI/PMI/RI reporting on PUCCH Mode 1-1, submode 2 | Supported |
| 111 | - Measurement reporting trigger Event A6 | Supported |
| 112 | - SCell addition within the handover to EUTRA procedure | Not Supported |
| 113 | - Trigger type 0 SRS (periodic SRS) transmission on X Serving Cells | Supported |
| NOTE: X = number of supported component carriers in a given band combination | ||
| 114 | - Reporting of both UTRA CPICH RSCP and Ec/N0 in a Measurement Report | Supported |
| 115 | - time domain ICIC RLM/RRM measurement subframe restriction for the serving cell | Not Supported |
| - time domain ICIC RRM measurement subframe restriction for neighbour cells | ||
| - time domain ICIC CSI measurement subframe restriction | ||
| 116 | - Relative transmit phase continuity for spatial multiplexing in UL | Not Supported |
| 117 | Undefined | |
| 118 | Undefined | |
| 119 | Undefined | |
| 120 | Undefined | |
| 121 | Undefined | |
| 122 | Undefined | |
| 123 | Undefined | |
| 124 | Undefined | |
| 125 | Undefined | |
| 126 | Undefined | |
| 127 | Undefined | |
| 128 | Undefined | |
| 129 | Undefined | |
| 130 | Undefined | |
| 131 | Undefined | |
| 132 | Undefined |
