Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
M2M Communications in 3GPP LTE/LTE-A
Networks: Architectures, Service Requirements,
Challenges, and Applications
Shqiperim...
What is M2M?
“M2M is about enabling the flow of data between machines and
machines, and ultimately machines and people.”
M...
n Machine – To – Machine:
n device (water meter) which is monitored by means of sensor [in “uplink”]
n device (valve) whic...
3GPP Network Architecture
• The LTE system is comprised of two networks:
- E-UTRAN (Evolved UTRAN)
- Consists of E-UTRAN B...
M2M Communications over 3GPP LTE/LTE-A
Networks
Figure : Communication scenarios with MTC devices communicating with the MTC
server.
Figure : Communication scenarios of MTC devices communicating with each other without
intermediate MTC server.
Standardization activities for M2M communications
• 3GPP Standardization Group
– The objective is to optimize the system d...
• Provide a mechanism to activate or deactivate M2M features for the M2M
subscribers.
• Identify which individual M2M feat...
M2M Device Triggering
• Device triggering is one of the key requirements for a 3GPP LTE/LTE-A
network. For devices that do...
Figure : The structure of the IMSI.
Figure : The structure of the MSISDN.
Addressing
• Low Mobility
– M2M Devices do not move, move infrequently, or move only within a certain region
• Time Controlled
– Send...
Challenges of M2M Communications over
3GPP LTE/LTE-A Networks
• Heterogeneous Network (HetNet)
– Macrocells(E-UTRAN eNBs)
...
Proposed Solutions
• Group-based Operations of M2M Devices
- Alleviate the signaling congestion on the air interface by re...
Proposed Solutions
• Resource Allocation with QoS Provisioning
- some applications (e.g., traffic control, robotic network...
Proposed Solutions
• Random Access Channel Congestion
- Random access procedure is used by the M2M device in order to perf...
M2M Communications Applications
M2M
communications
applications
e-Health
Tracking and
monitoring
Identification and
authen...
Thank You!
Questions?
Upcoming SlideShare
Loading in …5
×

13

Share

M2M communications

M2M communications

M2M communications

  1. 1. M2M Communications in 3GPP LTE/LTE-A Networks: Architectures, Service Requirements, Challenges, and Applications Shqiperim Krasniqi Besfort Shtaloja Lirim Rexhepi
  2. 2. What is M2M? “M2M is about enabling the flow of data between machines and machines, and ultimately machines and people.” M2M is an emerging technology. IDC predicted that one third of embedded devices are to be M2M enabled by 2015. Lots of industries are getting engaged in M2M such as healthcare, home management, industrial monitoring and automation. M2M is also named as Machine Type Communication (MTC) in 3GPP
  3. 3. n Machine – To – Machine: n device (water meter) which is monitored by means of sensor [in “uplink”] n device (valve) which is instructed to actuate [in “downlink”] n keywords: physical sensors and actuators; cost n Machine – To – Machine: n network which facilitates end-to-end connectivity between machines n composed of radio, access network, gateway, core network, backend server n keywords: hardware; protocols; end-to-end delay and reliability; cost n Machine – To – Machine: n device (computer) which extracts, processes (and displays) gathered information n device (computer) which automatically controls and instructs other machines n keywords: middleware, software, application; cost
  4. 4. 3GPP Network Architecture • The LTE system is comprised of two networks: - E-UTRAN (Evolved UTRAN) - Consists of E-UTRAN Base Stations, called eNodeBs - EPC (Evolved Packet Core) Consists of: - MME (Mobility Management Entity) - SGW (Serving Gateway) - PDN GW (Packet Data Network Gateway) - HSS (Home Subscriber Server) Data rates up to 150 Mbps (theoretical) - VoIP - Streaming multimedia - Video-conferencing
  5. 5. M2M Communications over 3GPP LTE/LTE-A Networks
  6. 6. Figure : Communication scenarios with MTC devices communicating with the MTC server.
  7. 7. Figure : Communication scenarios of MTC devices communicating with each other without intermediate MTC server.
  8. 8. Standardization activities for M2M communications • 3GPP Standardization Group – The objective is to optimize the system design that can mitigate M2M signaling congestion and network overload problems. • ETSI Standardization Group – The goal of the ETSI TC M2M is to support a wide range of M2M applications and needed functions (e.g., functional architecture and interface standardization) to be shared by different M2M applications. • OneM2M – The aim of oneM2M is to meet the critical needs for designing a common M2M service layer, which can be easily embedded within different hardware and software to connect a large number of devices with M2M application servers.
  9. 9. • Provide a mechanism to activate or deactivate M2M features for the M2M subscribers. • Identify which individual M2M features are activated for a particular M2M subscriber by the network operator. • Provide a mechanism for the network operator to control the addition or removal of individual M2M features and also restrict activation of M2M features. • Provide a mechanism to reduce peaks in data and signaling traffic when a large number of M2M devices simultaneously attempt data transmissions. • Provide a mechanism to restrict downlink data traffic and also limit access towards a specific APN when the network is overloaded. General Service
  10. 10. M2M Device Triggering • Device triggering is one of the key requirements for a 3GPP LTE/LTE-A network. For devices that do not have IP addresses (e.g., 2/3G devices), it is obvious that these devices cannot be attached in the packet switch (PS) domain in order to be reached by the network. Since the majority of M2M applications are data applications, it is necessary for an application server to reach the device in the PS domain. This requires a device to be allocated an IP address. Therefore, device triggering is related to the devices that are not reachable by the AS or the SCS. – M2M identifiers can be categorized into: • Internal identifiers, which is the identity that the entities within the 3GPP system use for addressing an M2M device. (IMSI) • External identifiers, which is the identity used from outside the 3GPP system, by which an M2M device is known to the M2M server. (MSISDN)
  11. 11. Figure : The structure of the IMSI. Figure : The structure of the MSISDN. Addressing
  12. 12. • Low Mobility – M2M Devices do not move, move infrequently, or move only within a certain region • Time Controlled – Send or receive data only at certain pre-defined periods • Time Tolerant – Data transfer can be delayed • Packet Switched – Network operator to provide packet switched service with or without an MSISDN • Online small Data Transmissions – MTC Devices frequently send or receive small amounts of data. • Monitoring • Low Power Consumption • Location Specific Trigger Features of M2M Communications
  13. 13. Challenges of M2M Communications over 3GPP LTE/LTE-A Networks • Heterogeneous Network (HetNet) – Macrocells(E-UTRAN eNBs) – Picocells (small transmission power eNBs) – Femtocells (HeNBs) – Relay Nodes (RNs) • Air Interface • Low-energy and low-latency devices • Standardization process for the air interface • Coexistence with current communication systems
  14. 14. Proposed Solutions • Group-based Operations of M2M Devices - Alleviate the signaling congestion on the air interface by reducing communication loads between an M2M device and 3GPP E-UTRAN and EPC - Logically based on service requirements or based on physical locations of M2M devices • Device-to-Device Communications - lower power consumption - less transmission delay - less load distribution of data servers for local M2M traffic - 3GPP Release 12 • Cognitive M2M Communications - interference mitigation between H2H and M2M communications - Radio Access Channel (RACH) - devices can compete and access an available channel for wireless transmission independently without coordination and centralized control - Cognitive radio (CR) - improve the spectrum utilization and transmission efficiency
  15. 15. Proposed Solutions • Resource Allocation with QoS Provisioning - some applications (e.g., traffic control, robotic networks, and e-health) need mobility support - other applications (e.g., data traffic from meters in smart grid or navigation systems) require strict timing - orthogonal channels vs shared resource allocation 1. The eNB-to-M2M device link 2. The eNB-to-UE link 3. The eNB-to-M2M gateway link 4. The M2M gateway-to-M2M device link 5. The M2M device-to-M2M device link - restrictions on the transmit power - restrictions on available radio resources
  16. 16. Proposed Solutions • Random Access Channel Congestion - Random access procedure is used by the M2M device in order to perform handover from one eNB to another eNB, or to acquire the uplink timing synchronization - The number of M2M devices in a cell is expected to be much larger than the number of UEs - Collisions (packet losses, extra energy consumption, waste of radio resources, and unexpected delays) 1. Backoff Scheme 2. Slotted Access Scheme 3. Access Class Barring (ACB) Scheme 4. Pull-based Scheme 5. Dynamic PRACH Resource Allocation Scheme • Reliable Data Transmission • Energy Management • Self-Management Capabilities - self-optimization - self-healing - self-protection
  17. 17. M2M Communications Applications M2M communications applications e-Health Tracking and monitoring Identification and authentication Data collection Sensing Smart environment Smart homes Smart lighting Smart industrial plants Green environment Intelligent transportation Assisted driving e-Ticketing Smart parking Fleet management Security and public safety Remote surveillance Personal tracking Public infrastructure protection Other futuristic applications Information-ambient society Robotic applications Environment monitoring
  18. 18. Thank You! Questions?
  • KalpanaPerera

    Apr. 1, 2020
  • thangam1989

    Mar. 13, 2019
  • MohamedShalaby66

    Mar. 11, 2019
  • chirag9876

    Nov. 14, 2018
  • StefanMitterdorfer

    Aug. 28, 2018
  • harshanagunasekara

    May. 27, 2018
  • kirubaraj3

    May. 26, 2018
  • ArmanSeth

    Apr. 9, 2018
  • MohinderPartapThind

    Oct. 23, 2017
  • Strong168

    Oct. 18, 2017
  • ehsanmomeni007

    Apr. 1, 2017
  • AnisAllani2

    Oct. 9, 2016
  • MarwaIbrahim23

    Aug. 19, 2016

M2M communications

Views

Total views

6,378

On Slideshare

0

From embeds

0

Number of embeds

15

Actions

Downloads

0

Shares

0

Comments

0

Likes

13

×