ITRI LTE small cell Copyright ITRI 1 RF

ITRI LTE small cell Copyright ITRI 業技術研究院 1

RF specification (1/2) • 3 GPP R 8/R 9 Compliant / FAPI Compliant • PHY L 1 Software on TI 66 xx Series DSP • L 2/L 3/RRM Software on TI 66 xx Series DSP/ARM core u. D-Cell Housing (388 mm x 235 mm x 67 mm) Copyright ITRI 業技術研究院 2

Copyright ITRI 業技術研究院 3

RF specification (2/2) Support 20 MHz, TD-LTE Band 40 (2300 MHz) 2 x 2 MIMO Transmit Diversity, Spatial Multiplexing All L 1 Control, Data Physical Channels Maximum Throughput : DL/UL 100 Mbps/ 10 Mbps (w/ TDD Config 3 : 1) • 16 Concurrent UEs always on • Tx power : 24 d. Bm • Power Interface: 12 V DC, Po. E++ • • Copyright ITRI 業技術研究院 4

• • 64 Active Users Support UE CAT 6 Throughput : DL/UL 300 M/50 M 8/16 UE per TTI GPS/IEEE 1588 synchronization Sniffer Function X 2 & Scheduling支援e. ICIC Smart Antenna Supported RRM OAM SON D B Framewo r k L 3 RRM SON Call Control Finite State Machine SON RRM RRC AS N. 1 ARM A 8/A 15 Protocol. RLC GTP-U S 1 A P Qo. S AS N. 1 X 2 A P SCTP UDCP Et. her ne. C t. P PD TI NDK . RRC. S 1 LSCHED Smart Antenna Framework PDCP 5 MHz Copyright ITRI 業技術研究院 Primary Secondar y CC PHY API MAC Cor e 1 UMAC 5 MHz Carrier Aggregation CC RLC LMAC Sm art ante nna USCHE D TX Cor e 0 Cor e 2 RF Chip/ RF Mod ule 14 B aseband PHY AD AD C CC DA DA C CC C FP GA RX Cor SRIO e 3 Tx/Rx Filtering and Access RF Contro l Timing Control 5

LTE-A Dual RAT Smart Antenna SON/RRM + Smart Antenna RRM Beam Control SON 17 Copyright ITRI 業技術研究院 6

ITRI 5 G Project: mm. WAVE based Small cell (1/2) DSP 1 Gb. E/ Application 1 Gb. E CPU/GPU L 2/L 3 10 Gb. E 1 Gb. E ADI IF Subframe Enc/Dec DSP Subframe Enc/Dec IF SRIO ADI IF CPRI Decoder SRIO Switch RF Control DSP 1 Gb. E RF T/R Module ADI IF CPRI DSP Tx/Rx Sync 10 Gb. E RF Transceiver ADI IF Subframe SRIO Enc/Dec 1 Gb. E Server Copyright ITRI 業技術研究院 DSP Subframe Enc/Dec AC/DC Power SRIO BBU RRH 7

Transceiver 8 Copyright ITRI 業技術研究院 8

ITRI 5 G Project: mm. WAVE based Small cell (2/2) mm. Wave Prototype Demonstration in Globalcomm 2014: ~1 G bps Copyright ITRI 業技術研究院 9

E-UTRAN & EPC logical view Internet UE Core Network LTE-Uu UE Small Cell S 1 MME, S-GW & P-GW X 2 Small Cell OS: TI ARM Linux Copyright ITRI 業技術研究院 Application Servers OS: Linux (desktop version) 10

ITRI test environment • EPC: run MME software and configure NAT – WAN IP: 140. 117. XXX. xxx – LAN IP: 10. 101. 131. 254 • Small cell: run L 1/L 2/L 3 and RRM software, ex: IP Cell Identity Carrier frequency: (serving, neighbors) Physical cell ID e. NB #8 e. NB #14 10. 101. 131. 8 10. 101. 131. 14 8 14 2320 MHz, 2350 MHz, 2320 MHz, 8 14 Default gateway 10. 101. 131. 254 MME IP 10. 101. 131. 254 Copyright ITRI 業技術研究院 EARFCN=39150 EARFCN=38850 11

UE Attach procedure e. NB RRCConnection. Setup. Complte (Attach Request) MME Initial UE Message (Attach Request) Authentication and key Agreement (AKA), NAS SMC UECapability. Enquiry UECapability. Information Security. Mode. Command Security. Mode. Complete Initial. Context. Setup. Request (Attach Accept, Activate Default ESP Bearer) UE Capability Info Indication RRCConnection. Reconfiguration (Attach Accept, Activate Default ESP Bearer) RRCConnection. Reconfiguration Complete UL Information Transfer Direct transfer NAS message (Attach Complete, Activate EPS Bearer context accept) Copyright ITRI 業技術研究院 Initial. Context. Setup. Response UL NAS Transport (Attach Complete, Activate EPS Bearer context accept) 12

Cell Configuration RRC RRM RRC_MIB_CFG_REQ RRC_MIB_CFG_CFM RRC_SIBX_CFG_REQ RRC_SIBX_CFG_CFM RRC_CFG_REQ RRC_CFG_CFM Configure MIB and SIB(1, 2, 3, 4, 5) RRC_AGC_CMD RRC_AGC_CFM RRC_START_REQ Configure pci, frequency and security algorithm priority RRC_START_CFM Configure Rx gain: ex: for wireless -> 8, wired->0 Copyright ITRI 業技術研究院 UDCell starts to broadcast MIB and SIB. UE can connect to UDcell now 13

RRC connection establishment UE RRCConnection. Request RRC_CON_IND (t. Con. Ind) RRCConnection. Setup RRC_CON_SETUP_REQ (t. Setup. Req) RRCConnection. Setup. Complete UE RRC_CON_SETUP_CFM (t. Setup. Cfm) RRCConnection. Request RRCConnection. Reject Copyright ITRI 業技術研究院 RRM RRC_CON_IND RRC_CON_REJECT (t. Con. Reject. Req) 14

Initial security activation UE RRC_SEC_ACTV_REQ t. Sec. Actv. Req Security. Mode. Command Security. Mode. Complete UE RRM RRC_SEC_ACTV_CFM (t. Ue. Cfm. Msg) RRC RRM RRC_SEC_ACTV_REQ Security. Mode. Command Security. Mode. Failure Copyright ITRI 業技術研究院 RRC_SEC_ACTV_CFM 15

RRC connection reconfiguration UE RRC_CON_RECONFIG_REQ (t. Reconfig. Req) RRCConnection. Reconfiguration. Complete UE RRM RRC_CON_RECONFIG_CFM (t. Ue. Cfm. Msg) RRC RRM RRC_CON_RECONFIG_REQ RRCConnection. Reconfiguration RRC Connection Re-establishment Copyright ITRI 業技術研究院 RRC_REESTB_IND 16

Handover (source e. NB) UE RRC Target RRM Measurement. Report (A 3) Request RRC to encode Ho. Prepare msg RRCConnection. Reconfiguration (Handover) Including DRB PDCP SN status RRC_MEAS_REPORT_IND (t. Meas. Report. Ind. Msg) RRC_HO_INFO_REQ (t. Rrm. Info) RRC_HO_INFO_CFM (t. Ho. Info. Cfm + Ho. Prepare ASN. 1 msg) 1 RRC_HO_CMD_REQ 4 (t. Crnti. Msg + Handover. Command ASN. 1 msg) RRC_HO_CMD_CFM (t. Ho. Cmd. Cfm) RRC_CON_REL_REQ 5 8 RRC_CON_REL_CFM Copyright ITRI 業技術研究院 17

Handover (target e. NB) UE Request RRC to decode Ho. Prepare msg Reserve ue radio resource in target e. NB and prepare handover command RRC RRM RRC_HO_PREPAR_REQ (t. Ho. Prp. Req + Ho. Prepare ASN. 1 msg) RRC_HO_PREPAR_CFM (t. Ho. Prp. Cfm) 2 RRC_HO_RSV_REQ (t. Handover. Command. Material) RRC_HO_RSV_CFM (t. Ho. Rsv. Cfm + Handover. Command ASN. 1 msg) 3 RRC_STATUS_IND 6 (t. Status. Ind) RRCConnection. Reconfiguration. Complete RRC_HO_CFM_IND (t. Ue. Cfm. Msg) UE handover to target e. NB RRC_HO_PS_IND (t. Sec. Cnx. Info) 7 DRB PDCP SN status Copyright ITRI 業技術研究院 18