IEEE C802.16p-11/0063
Project
IEEE 802.16 Broadband Wireless Access Working Group
<http://ieee802.org/16>
Title
M2M Load Balancing
Date
Submitted
2011-05-07
Source(s)
Joey Chou
Joey.Chou@intel.com
Intel
Re:
P802.16p AWD
Abstract
Propose the M2M load balancing mechanism
Purpose
To be discussed and adopted
Notice
Release
Patent
Policy
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IEEE C802.16p-11/0063
M2M Load Balancing
Joeyn Chou,
Intel
1. Introduction
Contribution C80216p-11_0017 [1] proposes coordicated paging to coordinate the scheduling
of UL transmission of huge number of M2M devices with an aim to reduce the chance of
collision during the network re-entry.
Figure-2 shows diagram of M2M load balancing. There are 8 paging groups PG #1 to PG #8.
Each paging group supports some number of M2M devices. PG #1 to PG #8 are scheduled to
transmit UL report in the two hours interval from 1:00 AM to 3:00AM.
24 hours
24 hours
2 hours
PG #1
PG #2
PG #3
PG #4
PG #5
PG #6
PG #7
PG #8
0
2
4
6
22
0
4
2
6
22
Scheduled transmission opportunities for a group of M2M devices
Figure 1: M2M load balancing
This contribution proposes a method to support M2M load balancing.
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IEEE C802.16p-11/0063
2. References
[1] IEEE 802.16p-11/0017, “Optimization of UL grant scheduling for M2M,” March. 2011.
3. Proposed Text
3.1 Proposed Text #1
---------------------------------------------- Text Start -----------------------------------------------
6.3.28 M2M Load Balancing
M2M applications have a strong bias towards the uplink that is mostly dedicated to report the
measurement of M2M devices. The report tends to be periodic, and can have a very long
reporting cycle even in hours, or days. For example, the vending maching to report the
inventory daily, smart power meter to report the usage daily. Therefore, the BS shall support
M2M load balancing by scheduling the M2M device to report the measurement at the off peak
hours (e.g. 01:00 to 03:00).
During the network entry, the M2M device can set bit #2 in the Capabilities for Construction
and Transmission of MAC PDUs TLV to indicate the device supports M2M load balancing. Then,
the BS can schedule all M2M devices supporting load balancing to report non-realtime data at
the off peak hours that can greatly improve the uplink bandwith efficiency.
---------------------------------------------- Text End -----------------------------------------------
3.2 Proposed Text #2
---------------------------------------------- Text Start -----------------------------------------------
11.8.2 Capabilities for Construction and Transmission of MAC PDUs
Type
Length
Value
Scope
4
1
Bit #0: Ability to receive requests piggybacked with
data
Bit #1: Ability to use 3-bit FSN values used when
forming MAC PDUs on non-ARQ connections Bits
SBC-REQ (see 6.3.2.3.23)
SBC-RSP (see 6.3.2.3.24)
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IEEE C802.16p-11/0063
Bit #2: M2M load balancing is supported (default value
is 1)
#23–7: Reserved; shall be set to zero
---------------------------------------------- Text End -----------------------------------------------
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