1. IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-06-0493-00-0000
Title: MEDIA INDEPENDENT HANDOVER - Media Specific Link Threshold Parameter Survey
Date Submitted: January 9th, 2006
Presented at IEEE session #12 in Waikoloa, Hawaii
Authors or Source(s): Ulises Olvera, Reijo Salminen
Abstract: A walkthrough of the latest situation in the media specific technologies on what are the existing relevant link threshold parameters, and what is needed for to address these parameters in a common generic way

2. IEEE 802.21 presentation release statements
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3. Background
IEEE standard draft is approaching letter ballot state in the next plenary
One important factor in the handover procedures is the ability to monitor the various link threshold parameters
Current draft only has a short list of examples in this area
The architecture discussion that is starting/ongoing within 802 wireless groups will most likely not meet the timelines of
The aim of this submission is to give an overview of what relevant link layer parameters are already existing in different media specific groups, using the latest drafts and proposals of the relevant groups
Based on the findings, a proposal for the parameter list to be used in is given
The aim is to give a generic, but yet detailed enough list of parameters, which should be as close as possible to the native parameters within the media specific technologies but still be relevant for the handovers

4. 802.11
The e (D13) chapter ’Traffic Specification (TSPEC) element has the following parameters:
Nominal and Maximum MSDU size
Minimum and Maximum Service Interval
Inactivity Interval
Suspension Interval
Service Start Time
Minimum, Mean and Peak Data Rate
Burst Size
Delay Bound
Minimum PHY Rate
Surplus Bandwidth Allowance
Medium Time

5. 802.16
The following parameters originate from g-05/008r2 chapter ’QoS Management’ , e (D11) chapter ’Global Service Flows’ and e (D11) chapter ’Service Flow Encodings’
QoS Parameter Set Type
Maximum Sustained Traffic Rate
Maximum Traffic Burst
Minimum Reserved Traffic Rate
Service Flow Scheduling Type
Tolerated Jitter
Maximum Latency
And TLV encodings include ’Packet Error Rate’ for Service Flow

6. 802.20
No draft exists yet for
Contribution C /04 chapter ’Definition of QoSAttributeSet’ states the following parameters:
Peak_Rate
Bucket_Size
Token_Rate
Max_Latency
Max_Packet_Loss_Rate
Packet_Size
Max_Jitter

7. 3GPP The following parameters originate from 3GPP TS 23.107 v.6.3.0
Traffic class
Maximum bitrate (kbps)
Guaranteed bitrate (kbps)
Maxim SDU size (octets)
SDU format information (bits)
SDU error ratio
Residual bit error ratio
Delivery of erroneous SDU (yes/no)
Transfer delay (ms)
Traffic Handling priority
Allocation/Retention Priority
Source statistics descriptor
Signalling Indication (yes/no)

8. 3GPP2
The follwoing parameters originate from TIA D Table E-5 Content of QoS_Attribute_SET
Qos_ATTRIBUTE_SET_ID (7 bits)
VERBOSE (I bit)
FlowProfileID (0 or 16 bits)
Traffic_Class (0 or 3 bits)
Peak_Rate (0 or 16 bits)
Bucket_Size (0 or 16 bits)
Token_Rate (0 or 16 bits)
Max_Latency (0 or 8 bits)
Msx_IP_Packet_Loss_Rate (0 or 5 bits)
Packet_Size (0 or 8 bits)
Delay_Var_Sensitive (0 or 1 bits)

9. Proposed Change for
Change the link parameter list in ’Configure Thresholds’ and ’Parameters Change’ primitives throughout the document to following:
Maximum Bit rate
Guranteed (minimum) Bit Rate
Peak Rate
Packet Loss Rate Before Retransmission
Packet Error Rate
Maximum Packet (SDU) Size
Delay
Jitter
Received Signal Strength
Provide detailed enough description of the meaning and interpretation of each parameter, to ease interoperability and other issues
Vendor specific enhancements should also be allowed

10. Thank you!