3gpp lte for the - tuhh – startseite · pdf file3gpp lte for the internet of things ......

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CAPITALS

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3GPP LTE for the Internet of Things

Dr. Christian Hoymann, Ericsson Research

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LTE for the Internet of Things | Commercial in confidence | ComNets FFV 2016 | 2016-03-04 |

› Technology landscape

› 3GPP history

› Radio requirements &

technology components

› Summary

Outline

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IoT Technology Landscape

3GPP

› (UMTS)

› LTE machine-type communication (MTC)

› Narrowband IoT (NB-IoT)

› Extended coverage GSM (EC-GSM-IOT)

Short range

› Bluetooth Low Energy

› Wi-Fi, IEEE802.11ah

› IEEE802.15.4

› ZigBee

› Z-wave

› …

Internet of Things (IoT)

Long range

› Sigfox

› Weightless

› OnRamp

› LoRa

› ETSI LTN

› …

Cellular IoT in licensed spectrum IoT Connectivity in unlicensed spectrum

› Simple cheap devices

› Low energy consumption

› (Delay tolerant)

› Can be massive numbers

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› 3GPP history



› Summary

Outline

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RAN Study Item

on low-cost MTC

UEs based on LTE

2011 2012

Rel-11

RAN Work Item

on Low cost &

enhanced coverage

Vodafone driven

Special Interest Group

2013

Rel-12

GERAN Study Item

on Cellular System

Support for IoT

2014 2015 2016

Rel-13

RAN Work Item

on Further Enhancements for

MTC

RAN Work Item

on NB-IOT

LTE-MTC LTE-eMTC

NB-LTE

LTE-evo

NB-M2M

C-UNB

NB-OFDMA NB-CIOT

NB-CIOT

& NB-LTE

GERAN Work Item

on EC-GSM

EC-

GSM

EC-GSM N-GSM

PCG

3GPP IOT history

most recent…

today

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NB-LTE /

NB-IoT

200kHz

200kHz

200kHz

LTE LTE

LTE

GSM (Stand alone)

(Guard band)

(Inband)

3GPP Deployment scenarios

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› 3GPP history



› Summary

Outline

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IoT Radio Requirements

improved coverage

(15/20 dB more)

GSM

WCDMA

LTE

Avoid impact to

existing systems

Reduce energy consumption

(10 years battery lifetime)

Support massive number of

devices

Reduce device complexity

(<5$ per module)

Acceptable latency

(UL Exception report in 10s)

Reduce signaling for infrequent and small data

S1

Operate in narrow

spectrum

In addition for NB-IOT

and EC-GSM

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GSM

WCDMA

LTE

Avoid impact to

existing systems




devices


(<5$ per module)

Acceptable latency



S1

Operate in narrow

spectrum


and EC-GSM

improved coverage

(15/20 dB more)

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› Power Boosting

– Mainly applicable to DL

› Repeat transmission

– Repeat the transmission to allow energy

accumulation at the UE

– UL & DL control channels, random access

› Relax acquisition time

– Allow the UE to accumulate and/or attempt to

decode subsequent transmissions

– Synchronization and broadcast channels

› Reduce data rate

– Cell-edge data rate in the order of ~1 kbps

rather than ~1 Mbps

– UL & DL data channels

Improved Coverage

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improved coverage

(15/20 dB more)


GSM

WCDMA

LTE

Avoid impact to

existing systems


devices


(<5$ per module)

Acceptable latency



S1

Operate in narrow

spectrum


and EC-GSM



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› Rel-12 UE power saving mode

– Periodic tracking area update (TAU) followed by a paging duration

– Otherwise power-off, UE not reachable, but still registered

› Rel-13 extended DRX cycles

– Connected mode DRX cycle up to 10.24s

– Idle mode DRX cycle up to 43.69min

Reduced Energy consumption

UE reachable

UE unreachable

POWER SAVING STATE

RRC_IDLERRC_CONNECTEDRRC Connection Release

RRC Connection Establishment

NAS de-activates AS

upon Active timer

expiryNAS activates

AS upon TAU

timer expiry or

UL Data

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improved coverage

(15/20 dB more)


GSM

WCDMA

LTE

Avoid impact to

existing systems


devices


(<5$ per module)

Acceptable latency


Operate in narrow

spectrum


and EC-GSM


S1

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› Signaling reduction due to

– Store and re-use previous parameters for a

subsequent connection setup

› RRC connection (Uu)

› S1-MME UE association (S1AP)

› S1-U bearer context (S1-U)

S1 enhancements RRC Resume/Suspend

S-GW

P-GW

S1-U

MAC

RRC

PHY

RLC

PDCP

RLC

PDCP

SGi

MME HSS

S6a S11

S5

S1AP

S1-U S1AP

S1AP

S1-U

Uu

RRC RRC

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› Expected signaling reduction due to

– No need for data connection establishment

› Expected network cost reduction due to

– No need for User-plane nodes

– Dedicated core network for NB-IoT

S1 enhancements Data-over-NAS

C-SGN

PGW

S1-lite

HSS

S6a

SGi

MAC

RRC

PHY

RLC

PDCP

RLC

PDCP

S-GW

Uu

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S1



improved coverage

(15/20 dB more)


GSM

WCDMA

LTE

Avoid impact to

existing systems


devices

Acceptable latency


Operate in narrow

spectrum


and EC-GSM


(<5$ per module)

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LTE Rel-8

Cat 1

LTE Rel-12

Cat-M0

LTE Rel-13

Cat –M1

LTE Rel-13

“NB-IOT”

DL peak rate 10 Mbps 1 Mbps 1 Mbps ~100 kbps*

UL peak rate 5 Mbps 1 Mbps 1 Mbps ~20 kbps*

DL rate in extreme cov. (MCL=164dB) ~3 kbps**

UL rate in extreme cov. (MCL=164dB) ~0.3 kbps**

Coverage enhancement 15 dB 20 dB

Duplex mode Full Half or full Half or full Half

UE bandwidth 20 MHz 20 MHz 1.4 MHz 200 kHz

Maximum transmit power 23 dBm 23 dBm ~20 dBm 23 dBm

PSM Yes Yes Yes

eDRX Yes Yes

RRC Connection Resume, DoNAS Yes, ? Yes, Yes

Supported frequency bands All All? 800/900MHz?

Modem complexity relative to Cat-1 100% 50% 20-25%

Reduced Device Complexity

* Work in progress. Data rate above SNDCP in basic coverage (MCL=113 dB).

** Work in progress. Data rate above SNDCP. (GERAN SI objective: 160 bps)

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› 3GPP radio interfaces cover IoT market

– NB-IoT, LTE-MTC, EC-GSM, (UMTS)

› All driven by Ericsson

– Meeting all IoT requirements

› NB-IOT = 5G?

Summary

3gpp lte for the - tuhh – startseite · pdf file3gpp lte for the internet of things ......

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