draft-ietf-opsawg-capwap-extension-05.txt | draft-ietf-opsawg-capwap-extension-06.txt | |||
---|---|---|---|---|
OPSAWG Y. Chen | OPSAWG Y. Chen | |||
Internet-Draft D. Liu | Internet-Draft China Mobile | |||
Updates: 5416 (if approved) H. Deng | Updates: 5416 (if approved) D. Liu | |||
Intended status: Standards Track China Mobile | Intended status: Standards Track | |||
Expires: April 26, 2015 Lei. Zhu | Expires: January 7, 2016 H. Deng | |||
China Mobile | ||||
Lei. Zhu | ||||
Huawei | Huawei | |||
October 27, 2014 | July 6, 2015 | |||
CAPWAP Extension for 802.11n and Power/channel Autoconfiguration | CAPWAP Extension for 802.11n and Power/channel Autoconfiguration | |||
draft-ietf-opsawg-capwap-extension-05 | draft-ietf-opsawg-capwap-extension-06 | |||
Abstract | Abstract | |||
The CAPWAP binding for 802.11 is specified by RFC5416 and it was | The CAPWAP binding for 802.11 is specified by RFC5416 and it was | |||
based on IEEE 802-11.2007 standard. Several new amendments of 802.11 | based on IEEE 802-11.2007 standard. Several new amendments of 802.11 | |||
have been published since RFC5416 was published in 2009. 802.11n is | have been published since RFC5416 was published in 2009. 802.11n is | |||
one of those amendments and it has been widely used in real | one of those amendments and it has been widely used in real | |||
deployment. This document extends the CAPWAP binding for 802.11 to | deployment. This document extends the CAPWAP binding for 802.11 to | |||
support 802.11n and also defines a power and channel auto | support 802.11n and also defines a power and channel auto | |||
configuration extension. | configuration extension. | |||
skipping to change at page 1, line 39 | skipping to change at page 1, line 41 | |||
Internet-Drafts are working documents of the Internet Engineering | Internet-Drafts are working documents of the Internet Engineering | |||
Task Force (IETF). Note that other groups may also distribute | Task Force (IETF). Note that other groups may also distribute | |||
working documents as Internet-Drafts. The list of current Internet- | working documents as Internet-Drafts. The list of current Internet- | |||
Drafts is at http://datatracker.ietf.org/drafts/current/. | Drafts is at http://datatracker.ietf.org/drafts/current/. | |||
Internet-Drafts are draft documents valid for a maximum of six months | Internet-Drafts are draft documents valid for a maximum of six months | |||
and may be updated, replaced, or obsoleted by other documents at any | and may be updated, replaced, or obsoleted by other documents at any | |||
time. It is inappropriate to use Internet-Drafts as reference | time. It is inappropriate to use Internet-Drafts as reference | |||
material or to cite them other than as "work in progress." | material or to cite them other than as "work in progress." | |||
This Internet-Draft will expire on April 26, 2015. | This Internet-Draft will expire on January 7, 2016. | |||
Copyright Notice | Copyright Notice | |||
Copyright (c) 2014 IETF Trust and the persons identified as the | Copyright (c) 2015 IETF Trust and the persons identified as the | |||
document authors. All rights reserved. | document authors. All rights reserved. | |||
This document is subject to BCP 78 and the IETF Trust's Legal | This document is subject to BCP 78 and the IETF Trust's Legal | |||
Provisions Relating to IETF Documents | Provisions Relating to IETF Documents | |||
(http://trustee.ietf.org/license-info) in effect on the date of | (http://trustee.ietf.org/license-info) in effect on the date of | |||
publication of this document. Please review these documents | publication of this document. Please review these documents | |||
carefully, as they describe your rights and restrictions with respect | carefully, as they describe your rights and restrictions with respect | |||
to this document. Code Components extracted from this document must | to this document. Code Components extracted from this document must | |||
include Simplified BSD License text as described in Section 4.e of | include Simplified BSD License text as described in Section 4.e of | |||
the Trust Legal Provisions and are provided without warranty as | the Trust Legal Provisions and are provided without warranty as | |||
skipping to change at page 5, line 42 | skipping to change at page 5, line 42 | |||
TxAntenna: Transmitting antenna configuration. Each TxAntenna bit | TxAntenna: Transmitting antenna configuration. Each TxAntenna bit | |||
represents a certain number of antennas. Set to 1 if enabled, set to | represents a certain number of antennas. Set to 1 if enabled, set to | |||
0 if disabled. | 0 if disabled. | |||
RxAntenna: Receiving antenna configuration. Each RxAntenna bit | RxAntenna: Receiving antenna configuration. Each RxAntenna bit | |||
represents a certain number of antennas. Set to 1 if enabled, set to | represents a certain number of antennas. Set to 1 if enabled, set to | |||
0 if disabled. | 0 if disabled. | |||
The detail definition of TxAntenna/RxAntenna is as follows: | The detail definition of TxAntenna/RxAntenna is as follows: | |||
0 1 2 3 4 5 6 7 | 0 1 2 3 4 5 6 7 | |||
+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+ | |||
|8|7|6|5|4|3|2|1| | |8|7|6|5|4|3|2|1| | |||
+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+ | |||
Figure 2: Definition of TxAntenna/RxAntenna | Figure 2: Definition of TxAntenna/RxAntenna | |||
Each bit when enabled will represent the number of antennas | Each bit when enabled will represent the number of antennas | |||
correspondent to that bit. Only one bit is allowed to be set to 1. | correspondent to that bit. Only one bit is allowed to be set to 1. | |||
For example, when the first bit is enabled,it represents 8 antennas. | For example, when the first bit is enabled,it represents 8 antennas. | |||
3.1.3. 802.11n Station Information | 3.1.3. 802.11n Station Information | |||
The 802.11n Station Information message element is used to deliver | The 802.11n Station Information message element is used to deliver | |||
IEEE 802.11n station policy from the AC to the WTP. The definition | IEEE 802.11n station policy from the AC to the WTP. The definition | |||
skipping to change at page 8, line 26 | skipping to change at page 8, line 26 | |||
The IEEE 802.11 Tx Power message element defined in section 6.18 of | The IEEE 802.11 Tx Power message element defined in section 6.18 of | |||
[RFC5416] is used by the AC to control the transmission power of the | [RFC5416] is used by the AC to control the transmission power of the | |||
WTP. The 802.11 Tx Power information element is carried in the | WTP. The 802.11 Tx Power information element is carried in the | |||
Configure Status Response message or in the Configure Update Request | Configure Status Response message or in the Configure Update Request | |||
message. | message. | |||
4.3. Channel/Power Auto Adjustment | 4.3. Channel/Power Auto Adjustment | |||
The Channel Scan Procedure is illustrated by the figure 4. | The Channel Scan Procedure is illustrated by the figure 4. | |||
WTP Configure Status Reqest AC | WTP Configure Status Reqest AC | |||
-------------------------------------------------------> | -------------------------------------------------------> | |||
Configure Status Res(Scan Parameter Message Element, Channel Bind Message Element) | Configure Status Res(Scan Parameter Message Element, Channel Bind Message Element) | |||
<------------------------------------------------------ | <------------------------------------------------------ | |||
or | or | |||
WTP AC | WTP AC | |||
Configure Update Req(Scan Parameter Message Element, Channel Bind Message Element ) | Configure Update Req(Scan Parameter Message Element, Channel Bind Message Element ) | |||
<----------------------------------------------------- | <----------------------------------------------------- | |||
Configure Update Response | Configure Update Response | |||
-----------------------------------------------------> | -----------------------------------------------------> | |||
Figure 4: Channel Scan Procedure | Figure 4: Channel Scan Procedure | |||
The WTP has two work modes: normal mode and scan only mode. In | The WTP has two work modes: normal mode and scan only mode. In | |||
normal mode, the WTP can provide service for station access and scan | normal mode, the WTP can provide service for station access and scan | |||
channels at the same time. Whether the WTP will scan a given set of | channels at the same time. Whether the WTP will scan a given set of | |||
channels is determined by the Max Cycles field in the IEEE 802.11 | channels is determined by the Max Cycles field in the IEEE 802.11 | |||
Channel Bind message element defined in Section 4.3.2. When this | Channel Bind message element defined in Section 4.3.2. When this | |||
field is set to 0, the WTP will not scan the channel. If this field | field is set to 0, the WTP will not scan the channel. If this field | |||
is set to 255, the WTP will scan the channel continuously. The type | is set to 255, the WTP will scan the channel continuously. The type | |||
skipping to change at page 9, line 20 | skipping to change at page 9, line 20 | |||
In normal mode, the WTP behaviour is controlled by three parameters: | In normal mode, the WTP behaviour is controlled by three parameters: | |||
PrimeChlSrvTime, OnChannelScanTIme, and OffChannelScnTIme. These are | PrimeChlSrvTime, OnChannelScanTIme, and OffChannelScnTIme. These are | |||
provided by the IEEE 802.11 Scan Parameters message element defined | provided by the IEEE 802.11 Scan Parameters message element defined | |||
in Section 4.3.1. The WTP will provide access service for stations | in Section 4.3.1. The WTP will provide access service for stations | |||
for the duration given by PrimeChlSrvTime. It then scans the working | for the duration given by PrimeChlSrvTime. It then scans the working | |||
channel for the duration given by OnChannelScnTime. It returns to | channel for the duration given by OnChannelScnTime. It returns to | |||
servicing station access requests on the working channel for another | servicing station access requests on the working channel for another | |||
period of length PrimeChlSrvTime, then moves to a different channel | period of length PrimeChlSrvTime, then moves to a different channel | |||
and scans it for duration OffChannelScnTime. It repeats this cycle, | and scans it for duration OffChannelScnTime. It repeats this cycle, | |||
scanning a new non-working channel each time, until all the channels | scanning a new non-working channel each time, until all the channels | |||
have been scanned. | have been scanned. This channel scan procedure can be used to | |||
determine the interference of both the current working channel and | ||||
non-working channel to avoid potential interference. | ||||
When the WTP works in scan only mode, it does not distinguish between | When the WTP works in scan only mode, it does not distinguish between | |||
the working channel and scan channel. Every channel's scan duration | the working channel and scan channel. Every channel's scan duration | |||
will be OffChannelScnTime and PrimeChlSrvTime and OnChannelScanTime | will be OffChannelScnTime and PrimeChlSrvTime and OnChannelScanTime | |||
MUST be set to 0. | MUST be set to 0. | |||
As shown in Figure 4, the AC can control the scan behaviour at the | As shown in Figure 4, the AC can control the scan behaviour at the | |||
WTP by including the IEEE 802.11 Scan Parameters and IEEE 802.11 | WTP by including the IEEE 802.11 Scan Parameters and IEEE 802.11 | |||
Channel Bind message elements in a Configure Status Response or WTP | Channel Bind message elements in a Configure Status Response or WTP | |||
Configure Update Request message. | Configure Update Request message. | |||
skipping to change at page 10, line 5 | skipping to change at page 10, line 5 | |||
information is carried in the IEEE 802.11 Channel Scan Report message | information is carried in the IEEE 802.11 Channel Scan Report message | |||
element (Section 4.3.3) and an instance of the IEEE 802.11 | element (Section 4.3.3) and an instance of the IEEE 802.11 | |||
Information Element message element carrying a copy of theIEEE 802.11 | Information Element message element carrying a copy of theIEEE 802.11 | |||
Neighbor WTP Report information element (Section 4.3.4). | Neighbor WTP Report information element (Section 4.3.4). | |||
4.3.1. IEEE 802.11 Scan Parameters Message Element | 4.3.1. IEEE 802.11 Scan Parameters Message Element | |||
The format of the IEEE 802.11 Scan Parameters Message Element is as | The format of the IEEE 802.11 Scan Parameters Message Element is as | |||
shown in Figure 5: | shown in Figure 5: | |||
0 1 2 3 | 0 1 2 3 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Radio ID |M|S|L|D| | Report Time | | | Radio ID |M|S|L|D| | Report Time | | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| PrimeChlSrvTime | On Channel ScanTime | | | PrimeChlSrvTime | On Channel ScanTime | | |||
+-------------------------------+-------------------------------+ | +-------------------------------+-------------------------------+ | |||
| Off Channel ScanTime | | | Off Channel ScanTime | | |||
+-------------------------------+ | +-------------------------------+ | |||
Figure 5: IEEE 802.11 Scan Parameters Message Element | Figure 5: IEEE 802.11 Scan Parameters Message Element | |||
Type: TBD3 for IEEE 802.11 Scan Parameters Message Element. | Type: TBD3 for IEEE 802.11 Scan Parameters Message Element. | |||
Length: 10. | Length: 10. | |||
Radio ID: An 8-bit value representing the radio, whose value is | Radio ID: An 8-bit value representing the radio, whose value is | |||
between one (1) and 31. | between one (1) and 31. | |||
skipping to change at page 10, line 42 | skipping to change at page 10, line 42 | |||
detection scan. | detection scan. | |||
Report Time: Channel quality report time (unit: second). | Report Time: Channel quality report time (unit: second). | |||
PrimeChlSrvTime: Service time (unit: millisecond) on the working scan | PrimeChlSrvTime: Service time (unit: millisecond) on the working scan | |||
channel. This segment is invalid(set to 0) when WTP oper mode is set | channel. This segment is invalid(set to 0) when WTP oper mode is set | |||
to 1. The maximum value of this segment is 10000, the minimum value | to 1. The maximum value of this segment is 10000, the minimum value | |||
of this segment is 5000, the default value is 5000. | of this segment is 5000, the default value is 5000. | |||
On Channel ScanTime: The scan time (unit: millisecond) of the working | On Channel ScanTime: The scan time (unit: millisecond) of the working | |||
channel. When the M bit is set to 1, this segment is invalid(set to | channel. When the M bit is set to 1 (active scan), this segment is | |||
0). The maximum value of this segment is 120, the minimum value of | invalid(set to 0). The maximum value of this segment is 120, the | |||
this segment is 60, the default value is 60. | minimum value of this segment is 60, the default value is 60. | |||
Off Channel ScanTime: The scan time (unit: millisecond) of the | Off Channel ScanTime: The scan time (unit: millisecond) of the | |||
working channel. When the WTP operating mode is set to 2, this | working channel. When the WTP operating mode is set to 2, this | |||
segment MUST be set to 0. The maximum value of this segment is 120, | segment MUST be set to 0. The maximum value of this segment is 120, | |||
the minimum value of this segment is 60, the default value is 60. | the minimum value of this segment is 60, the default value is 60. | |||
4.3.2. IEEE 802.11 Scan Channel Bind Message Element | 4.3.2. IEEE 802.11 Scan Channel Bind Message Element | |||
The format of the IEEE 802.11 Scan Channel Bind Message Element is as | The format of the IEEE 802.11 Scan Channel Bind Message Element is as | |||
follows: | follows: | |||
0 1 2 3 | 0 1 2 3 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Radio ID | Flag | Max Cycles |Channel Count |ScanChannelSet.| | | Radio ID | Flag | Max Cycles |Channel Count |ScanChannelSet.| | |||
+---------------+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +---------------+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
Figure 6: IEEE 802.11 Scan Channel Bind Message Element | Figure 6: IEEE 802.11 Scan Channel Bind Message Element | |||
Type: TBD4 for IEEE 802.11 Scan Channel Bind Message Element. | Type: TBD4 for IEEE 802.11 Scan Channel Bind Message Element. | |||
Length: variable. | Length: variable. | |||
Radio ID: An 8-bit value representing the radio, whose value is | Radio ID: An 8-bit value representing the radio, whose value is | |||
between one (1) and 31. | between one (1) and 31. | |||
skipping to change at page 11, line 37 | skipping to change at page 11, line 37 | |||
Max Cycles: Number of times the scanning cycle is repeated for the | Max Cycles: Number of times the scanning cycle is repeated for the | |||
set of channels identified by this message element. 255 means | set of channels identified by this message element. 255 means | |||
continuous scan. | continuous scan. | |||
Channel Count: The number of channels will be scanned. | Channel Count: The number of channels will be scanned. | |||
Scan Channel Set: identifies the members of the set of channels to | Scan Channel Set: identifies the members of the set of channels to | |||
which this message element instance applies. The format for each | which this message element instance applies. The format for each | |||
channel is as follows: | channel is as follows: | |||
0 1 2 3 | 0 1 2 3 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Channel ID | Flag | | | Channel ID | Flag | | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
Figure 7: Channel Information Format | Figure 7: Channel Information Format | |||
Channel ID: the channel ID of the channel which will be scanned. | Channel ID: the channel ID of the channel which will be scanned. | |||
Flag: Bitmap, reserved for future use. | Flag: Bitmap, reserved for future use. | |||
4.3.3. IEEE 802.11 Channel Scan Report | 4.3.3. IEEE 802.11 Channel Scan Report | |||
There are two types of scan report: Channel Scan Report and WTP | There are two types of scan report: Channel Scan Report and WTP | |||
Neighbor Report. Channel Scan Report is used to channel | Neighbor Report. Channel Scan Report is used to channel | |||
autoconfiguration while WTP Neighbor Report is used to power | autoconfiguration while WTP Neighbor Report is used to power | |||
autoconfiguration. The WTP send the scan report to the AC through | autoconfiguration. The WTP send the scan report to the AC through | |||
WTP Event Request message. The information element that used to | WTP Event Request message. The information element that used to | |||
carry the scan report is Channel Scan Report Message Element and WTP | carry the scan report is Channel Scan Report Message Element and WTP | |||
Neighbor Report Message Element. | Neighbor Report Message Element. | |||
The format of the IEEE 802.11 Channel Scan Report message element is | The format of the IEEE 802.11 Channel Scan Report message element is | |||
in Figure 8. | in Figure 8. | |||
0 1 | 0 1 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Radio ID | Report Count | Channel Scan Report ... | | | Radio ID | Report Count | Channel Scan Report ... | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
Figure 8: IEEE 802.11 Channel Scan Report Message Element | Figure 8: IEEE 802.11 Channel Scan Report Message Element | |||
Type: TBD5 for IEEE 802.11 Channel Scan Report message element. | Type: TBD5 for IEEE 802.11 Channel Scan Report message element. | |||
Length: >=29. | Length: >=29. | |||
Radio ID: An 8-bit value representing the radio, whose value is | Radio ID: An 8-bit value representing the radio, whose value is | |||
between one (1) and 31. | between one (1) and 31. | |||
Report Count: The number of channels for which a report is provided. | Report Count: The number of channels for which a report is provided. | |||
Channel Scan Report: The format of each Channel Scan Report is shown | Channel Scan Report: The format of each Channel Scan Report is shown | |||
in Figure 9. | in Figure 9. | |||
0 1 2 3 | 0 1 2 3 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Channel Number | Radar Statistics | Mean | | | Channel Number | Radar Statistics | Mean | | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Time | Mean RSSI | Screen Packet Count | | | Time | Mean RSSI | Screen Packet Count | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
| NeighborCount| Mean Noise | Interference | WTP Tx Occp | | | NeighborCount| Mean Noise | Interference | WTP Tx Occp | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
| WTP Rx Occp | Unknown Occp | CRC Err Cnt | Decrypt Err Cnt | | | WTP Rx Occp | Unknown Occp | CRC Err Cnt | Decrypt Err Cnt | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
|Phy Err Cnt | Retrans Cnt | | |Phy Err Cnt | Retrans Cnt | | |||
+-----------------------------+ | +-----------------------------+ | |||
Figure 9: Channel Scan Report | Figure 9: Channel Scan Report | |||
Channel Number: The channel number. | Channel Number: The channel number. | |||
Radar Statistics: Whether detect radar signal in this channel. 0x00: | Radar Statistics: Whether detect radar signal in this channel. 0x00: | |||
detect radar signal. 0x01: no radar signal is detected. | detect radar signal. 0x01: no radar signal is detected. | |||
Mean Time: Channel measurement duration (ms). | Mean Time: Channel measurement duration (ms). | |||
Mean RSSI: The average signal strength of the scanned channel | Mean RSSI: The average signal strength of the scanned channel | |||
(dBm(2's complement)). | (dBm(2's complement)). | |||
Screen Packet Count: Received packet number. | Screen Packet Count: Received packet number. | |||
Neighbor Count: The neighbor number of this channel. | Neighbor Count: The neighbor number of this channel. | |||
Mean Noise: the average noise on this channel (dBm(2's complement)). | Mean Noise: the average noise on this channel (dBm(2's complement)). | |||
Interference: The interference of the channel, including STA | Interference: The interference of the channel. | |||
interference and WTP interference. | ||||
WTP Tx Occp: (The WTP transmission time/Monitor time)*255. The WTP | WTP Tx Occp: (The WTP transmission time/Monitor time)*255. The WTP | |||
transmission time is the total sending time of the WTP during the | transmission time is the total sending time of the WTP during the | |||
period of channel scan. | period of channel scan. | |||
WTP Rx Occp: (The WTP receiving duration time/Monitor time)*255. THe | WTP Rx Occp: (The WTP receiving duration time/Monitor time)*255. THe | |||
WTP receiving duration time is the total receiving time of the WTP | WTP receiving duration time is the total receiving time of the WTP | |||
during the period of channel scan. | during the period of channel scan. | |||
Unknown Occp: (All other packet transmission time duration/Monitor | Unknown Occp: (All other packet transmission time duration/Monitor | |||
skipping to change at page 14, line 18 | skipping to change at page 14, line 16 | |||
Phy Err Cnt: Physical err packet number. | Phy Err Cnt: Physical err packet number. | |||
Retrans Cnt: Retransmission packet number. | Retrans Cnt: Retransmission packet number. | |||
Note:The values of the above four count fields for a non-operational | Note:The values of the above four count fields for a non-operational | |||
channel can be ignored | channel can be ignored | |||
4.3.4. IEEE 802.11 WTP Neighbor Report | 4.3.4. IEEE 802.11 WTP Neighbor Report | |||
0 1 2 3 | 0 1 2 3 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| Radio ID | Reserved | Number of Neighbor Report | | | Radio ID | Reserved | Number of Neighbor Report | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
| Neighbor Infor... | | | Neighbor Infor... | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
Figure 10: WTP Neighbor Report TLV | Figure 10: WTP Neighbor Report TLV | |||
The definition of Neighbor info is as follows: | The definition of Neighbor info is as follows: | |||
0 1 2 3 | 0 1 2 3 | |||
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| BSSID | | | BSSID | | |||
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | |||
| BSSID | Channel Number | | | BSSID | Channel Number | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
| 2nd Offset | Mean RSSI | Sta Occp | WTP Occp | | | 2nd Offset | Mean RSSI | Sta Occp | WTP Occp | | |||
+---------------------------------------------------------------+ | +---------------------------------------------------------------+ | |||
Figure 11: Neighbor info | Figure 11: Neighbor info | |||
BSSID: The BSSID of this neighbor WTP. | BSSID: The BSSID of this neighbor WTP. | |||
Channel Number: The channel number of this WTP neighbor. | Channel Number: The channel number of this WTP neighbor. | |||
2nd channel offset: The auxiliary channel offset of this WTP. | 2nd channel offset: The auxiliary channel offset of this WTP. | |||
Mean RSSI: The average signal strength of this WTP (dbm). | Mean RSSI: The average signal strength of this WTP (dbm). | |||
skipping to change at page 16, line 4 | skipping to change at page 15, line 50 | |||
TBD5: Channel Scan Report Message Element type value described in | TBD5: Channel Scan Report Message Element type value described in | |||
section 4.3.3. | section 4.3.3. | |||
TBD6 entry for WTP Neighbor Report as descrbed in section 4.3.4 . | TBD6 entry for WTP Neighbor Report as descrbed in section 4.3.4 . | |||
7. Contributors | 7. Contributors | |||
This draft is a joint effort from the following contributors: | This draft is a joint effort from the following contributors: | |||
Gang Chen: China Mobile chengang@chinamobile.com | Gang Chen: China Mobile chengang@chinamobile.com | |||
Naibao Zhou: China Mobile zhounaibao@chinamobile.com | ||||
Naibao Zhou: China Mobile zhounaibao@chinamobile.com | ||||
Chunju Shao: China Mobile shaochunju@chinamobile.com | Chunju Shao: China Mobile shaochunju@chinamobile.com | |||
Hao Wang: Huawei3Come hwang@h3c.com | Hao Wang: Huawei3Come hwang@h3c.com | |||
Yakun Liu: AUTELAN liuyk@autelan.com | Yakun Liu: AUTELAN liuyk@autelan.com | |||
Xiaobo Zhang: GBCOM | Xiaobo Zhang: GBCOM | |||
Xiaolong Yu: Ruijie Networks | Xiaolong Yu: Ruijie Networks | |||
skipping to change at page 17, line 28 | skipping to change at page 17, line 28 | |||
Yifan Chen | Yifan Chen | |||
China Mobile | China Mobile | |||
No.32 Xuanwumen West Street | No.32 Xuanwumen West Street | |||
Beijing 100053 | Beijing 100053 | |||
China | China | |||
Email: chenyifan@chinamobile.com | Email: chenyifan@chinamobile.com | |||
Dapeng Liu | Dapeng Liu | |||
China Mobile | Beijing | |||
No.32 Xuanwumen West Street | ||||
Beijing 100053 | ||||
China | China | |||
Email: liudapeng@chinamobile.com | Email: maxpassion@gmail.com | |||
Hui Deng | Hui Deng | |||
China Mobile | China Mobile | |||
No.32 Xuanwumen West Street | No.32 Xuanwumen West Street | |||
Beijing 100053 | Beijing 100053 | |||
China | China | |||
Email: denghui@chinamobile.com | Email: denghui@chinamobile.com | |||
Lei Zhu | Lei Zhu | |||
End of changes. 22 change blocks. | ||||
86 lines changed or deleted | 87 lines changed or added | |||
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