Transcript IEEE C802.16m-09/1761r2

Extended header for piggybacked bandwidth request (P80216m/D1-15.2.2.2.2)
Document Number: IEEE C802.16m-09_1761r2
Date Submitted: 2009-09-23
Source:
Yi-Ting Lin, Tsung-Yu Tsai, Jiun-Je Jian, Chun-Yen Hsu, Youn-Tai Lee
E-mail: [email protected]
Institute for Information Industry (III)
Yuqin Chen
E-mail: [email protected]
ZTE Corporation
Venue:
Base Contribution: N/A
Re : P802.16m/D1
Purpose: Discussion and approval of the proposal into the IEEE P802.16m/D1
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Introduction
• Piggybacked bandwidth request is used by
the AMS to request for bandwidth for the
same or different connection, to which the
user data in the MAC PDU is mapped to.
• Piggybacked bandwidth request is carried
in the extended header. While it is lack of
the extended header in P802.16m/D1.
Piggybacked bandwidth request
types
• Piggybacked bandwidth request has the
following two types:
– PBR for the same flow
– PBR for different flow
Proposed Text
[Insert the following section 15.2.2.2.x “piggybacked bandwidth request
extended header”]
15.2.2.2.x Piggybacked bandwidth request extended header (PBREH)
PBREH shall be used when the AMS performs piggybacked
bandwidth request. There are two types of PBR which are PBR for
the same flow, and PBR for different flow. Tables xxx and Table yyy
are formats for the two types.
Table xxx — PBREH format for PBR for the same flow
Syntax
Size (bit)
Notes
PBREH(){
Last
1
Type
TBD
Last Extended Header indication:
0 = one or more extended header follows
the current extended header unless
specified otherwise;
1 = this extended header is the last
extended header unless specified
otherwise
PBR for the same flow
Request type
1
0:aggregate, 1:incremental
BR size
19
Amount of bandwidth requested
Reserved
}
variable
Shall be set to zero
Table yyy — PBREH format for PBR for different flow
Syntax
Size (bit)
Notes
PBREH(){
Last
1
Type
TBD
Last Extended Header indication:
0 = one or more extended header follows
the current extended header unless
specified otherwise;
1 = this extended header is the last
extended header unless specified
otherwise
PBR for different flow
Do {
FID
4
Flow identifier
Request type
1
0:aggregate, 1:incremental
BR size
19
Amount of bandwidth requested
End
1
} While (!End)
Reserved
}
variable
Shall be set to zero
Table 658—Description of
Extended Header Types
Extended header types
Names
Description
-
Fragmentation and packing extended header
See 15.2.2.2.1
TBD
Fragmentation extended header
See 15.2.2.2.1
TBD
Multiplexing extended header
See 15.2.2.2.4
TBD
Sleep Control extended header
TBD
Piggybacked bandwidth request extended header for the same flow
See 15.2.2.2.x
TBD
Piggybacked bandwidth request extended header for different flow
See 15.2.2.2.x
See <<15.2.3.x>>