Document Number IEEE C80216p110013 Date Submitted 20100303 Source Honggang Li Rui Huang Shantidev Mohant Email honggangliintelcom Intel Corp lt httpstandardsieeeorgfaqsaffiliationFAQhtml ID: 783716
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Group-based M2M solutions Document Number:IEEE C802.16p-11/0013Date Submitted:2010/03/03Source:Honggang Li, Rui Huang, Shantidev Mohant E-mail: honggang.li@intel.comIntel Corp.*<http://standards.ieee.org/faqs/affiliationFAQ.html>Re:802.16p amendment text(CfC: Project 802.16p Amendment Working Document Content)Base Contribution:IEEE C802.16p-11/xxxxPurpose:To be discussed and adopted in the AWD by the 802.16p M2M TGNotice:This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. Copyright Policy:The contributor is familiar with the IEEE-SA Copyright Policy <http://standards.ieee.org/IPR/copyrightpolicy.html>. Patent Policy:The contributor is familiar with the IEEE-SA Patent Policy and Procedures:<http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and <http://standards.ieee.org/guides/opman/sect6.html#6.3>.Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and <http://standards.ieee.org/board/pat >.
March 2011
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Intel Corp.
Slide2March 2011Intel Corp.Slide 2AbstractThis presentation discusses the candidate solutions to meet the requirements defined in SRD, based on M2M devices grouping.
Slide3Functional requirements of 16pLow power consumptionLarge numbers of devicesSmall burst transmissionsSecurity supportWe discuss the candidate solutions to the requirements of low power consumption and large numbers of devicesMarch 2011Slide 3Intel Corp.
Slide4Low power consumptionBoth transmit power and processing power make contribution to the power consumption of an M2M device. To save transmit power, the straightforward way is to group co-located M2M devices and relay M2M traffic by a relay station>10dB can be saved for pathloss of most of M2M devices transmissionAnd M2M grouping can shorten the transmission time due to better channel quality and higher data rate, so that the processing power can be saved.Non-grouping M2M transmissionGrouping M2M transmissionMarch 2011Slide 4Intel Corp.Delta of Pathloss BS-MS vs. RS-MS(LOS)BS-MS vs. RS-MS(NLOS)Rcell=1000m, Rrelay=100m45dB10dBRcell=300m, Rrelay=30m32dB12dB
Slide5Large numbers of devicesMost of M2M devices are cluster-type deployed, e.g. in a home, floor, warehouse etc.A cluster of devices can share a same connection with the BS, and aggregate the transmissions to simplify the air interface design due toLighter load compared with random access from large numbers of devicesLess interference March 2011Slide 5Intel Corp.
Slide6Solutions to M2M grouping16m relay M2M groupingIn a group, there is a relay station between M2M devices and the BS, the RS can also be an M2M deviceBecause only the RS communicates with the BS, most of M2M devices can work in low powerThe RS can support M2M data aggregation, so that multiple reports from M2M devices can be collected and packed in one PSDU or MSDU regarding if the destination addresses are the same one or not, to improve the spectral efficiency in relay linkDual mode(het-net) M2M grouping The dual-mode device can be used to forward the traffic between the BS and M2M devices, the dual-mode device can be WiMAX Femto or hotspotSimilar like 16m relay grouping, except that the access link between the RS and other M2M devices can be 802.11 or other air interfaceGroup-based channel allocation and transmissionSome of control process can done by one of devices of the group and shared with other devices, e.g. group-based bandwidth request and channel allocationMarch 2011Slide 6Intel Corp.
Slide716m Relay M2M GroupingM2M relay station is the relay station with M2M enhancements, e.g. data aggregationProsReuse the relay station definition in 16m, save the Tx power of M2M devices and reduce the access load of the BS, data aggregation can improve spectral efficiency furthermoreConsThe deployment relies on the RS-functioned stationFrame structure, the relay zone occupies at least one subframe, which waste radio resource sometimeAn example of 16m relay-based M2M in TDDMarch 2011Slide 7Intel Corp.
Slide8Dual-mode(het-net) M2M GroupingA station is responsible for forwarding the traffic between the BS and M2M devices, this station can be a M2M device also, the air interface to M2M devices can be based on 802.11 or other short-range ones.ProsSave the Tx power of M2M devices and reduce the access load of the BS, data aggregation can improve spectral efficiency furthermoreNo 16m relay required16m network offloadingConsAt least one dual-mode station is required in a groupMarch 2011Slide 8Intel Corp.
Slide9Group-based signaling sharing based on 16m groupFor co-located M2M devices, multiple M2M devices can transmit within a Tx window, one of them can request bandwidth in the name of group, and share similar transmission parameters such as Tx power, MCS etc. ProsThe group-oriented control signaling can save the signaling overhead in N(No.of M2M devices in a group) times roughly compared with non-grouped solutionNo requirement of 16m relay or dual-mode stationConsThere are still traffic data and ACK between the BS and each M2M deviceMarch 2011Slide 9Intel Corp.
Slide10Comparison among three candidatesGrouping solutionsDual mode required16m Relay requiredPeer2peer or other mechanism requiredSignaling overheadPower consumeEfficiency of channel usage802.16m relayNoYes
No
Low
Low
Middle**
Dual-mode
group
Yes*
No
No
Low
Low
High
802.16m signaling sharing
No
No
No
Middle
High
Low
* At least one dual-mode device is required as relay station
** due to relay zone allocation
March 2011
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Intel Corp.
Slide11Proposed textGroup-based M2M transmission of control and traffic should be supported to meet the requirements of 16p SRD[]. The group-based M2M transmission can be based on 802.16m relay, or Het-net dual-mode forwarding, or non-forwarding signaling sharing mechanisms. Which mechanism to be selected in 16p is to be decided.March 2011Intel Corp.11
Slide12References[1] Jin Lee, “IEEE 802.16p Machine to Machine (M2M) System Requirements Document”, IEEE 802.16p-10/0004r2[2] Roshni Srinivasan , “IEEE 802.16m Evaluation Methodology Document (EMD)“, IEEE 80216m-08_004r5[3] IEEE P802.16m/D11March 2011Slide 12Intel Corp.