IEEE 802.15.4t-2017 pdf free download – IEEE Standard for Low-Rate Wireless Networks Amendment 4: Higher Rate (2 Mb/s) Physical (PHY) Layer.
7.4.4.33 RS-GFSK device capabilities IE
Change the sixth paragraph of 7.4.4.33 as indicated:
The Link Margin field in Figure 7-101c shall be set to one if acting on the RS-GFSK Link Margin IE, as described in 6.17, is supported and shall be set to zero otherwise. When the Link Margin field is set to one, the device shall be responsive to the received RS GFSK _Link Margin IE as described in 7.4.4.32, when its control range allows.
Insert the following subclause 7.4.4.34 after 7.4.4.33:
7.4.4.34 Multi-PHY IE
The Multi-PHY IE is optional. The IE Content field of the Multi-PHY IE shall be formatted as ilustrated in Figure 7-101d.
The value of the field shall be set to one when the device sending the IE supprts the crresponding PHY,and shall be set to zero otherwise.
8. MAC services
8.2 MAC management service
8.2.1 Primitives supported by the MLME-SAP interface
Add the following new row to Table 8-1 (the entire table is not shown) as indicated, in alphabetical order by name:
8.2.5 Communications notification primitives Change the second paragraph of 8.2.5 as indicated: The MLME- BEACON-NOTIFY.indication primitive is used to notify the next higher layer when a beacon or enhanced beacon received during normal operating conditions. The MLME- COMMSTATUS.indication primitive is used to notify the next higher layer that an error has occurred during the processing of a frame that was instigated by a response primitive. The MLME-PHY- DETECT.indication primitive is used to notify the next higher layer that the 250 kb/s O-QPSK PHY has been detected during operation of the 2000 kb/s. 2450 MHz MSK PHY. Add the following new subclause 8.2.5.4, including Table 8-14a, after 8.2.5.3 as indicated:
8.2.5.4 MLME-PHY-DETECT.indication The MLME-PHY-DETECT.indication primitive is used to inform the next higher layer that the 250 kb/s O-QPSK PHY has been detected. The semantics of this primitive are as follows: MLME-PHY-DETECT.indication CurrentPHY ) The primitive parameter is defined in Table 8- 14a.
10. General PHY requirements
10.1 General requirements and definitions
10.1.2 Channel assignments
10.1.2.2 Channel numbering for 868 MHz, 915 MHz, and 2450 MHz bands
Change the first paragraph of 10.1.2.2 as indicated:
This subclause does not apply to the SUN PHY。 er LECIM PHY, or MSK PHY specifications. For explanations of channel numbering for the SUN PHYs and LECIM PHYs, sce 10.1.2.8 and 10.1.2.10,respectively. For explanations of channel numbering for the MSK PHY. see 10.1.2.6.
10.1.2.6 Channel numbering for MSK PHY 2450 MHz band
Change the first paragraph of 10.1.2.6, including breaking the paragraph into two separate paragraphs,as indicated:
The MSK PHY 2450 MHz band uses channel page 7 with the channel numbers defined in Table 10-8 and Table 10-8a. A total of 42 frequency channels numbered 15 to 56 on channel page 7 are available in the band from 2400 MHz to 2483.5 MHz for the 250 kb/s data rate. A total of 16 frequency channels numbered 57 to 72 on channel page 7 are available for the 2000 kb/s data rate. Different subsets of these frequency channels are available in different regions of the world.
Compliant receivers operating at 250 kb/s shall implement all channels in Table 10-8, defaulting to channel 47 unless modified by higher layers. The multiple narrow channels for the narrowband MSK 2450 MHz PHY are specified in order to improve coexistence with other 2450 MHz services. Compliant receivers operating at the 2000 kb/s data rate shall implement all channels in Table 10-8a with no default channel. The selection of specifie channels is out of the scope of this standard, being performed by higher Hayers.
Change the table title of Table 10-8 as indicated (the table is not shown), and insert the new Table 10-8a after Table 10-8:
Table 10-8- -MSK 2450 MHz mandatory PHY channel frequencies for 250 kb/s data rate.IEEE 802.15.4t pdf download.