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标题: IMT-2020卫星无线电接口的愿景、要求和评估指南  [查看完整版帖子] [打印本页]

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时间:  2023-9-9 21:20

作者: 清水86     标题: IMT-2020卫星无线电接口的愿景、要求和评估指南

Minimum requirements of the satellite component of IMT2020

Parameter	Explanation	Satellite requirement
Downlink peak data rate	Maximum achievable channel data rate under ideal conditions	70 Mbit/s
Uplink peak data rate		2 Mbit/s
Downlink user experienced data rate	Data rate maintained for 9 % of the time	1 Mbit/s
Uplink user experienced data rate		100 kbit/s
Downlink peak spectral efficiency	Number of bits of data per Hz in a band	3 bit/s/Hz
Uplink peak spectral efficiency		1.5 bit/s/Hz
Downlink average spectral efficiency	Average channel spectral efficiency	0.5 bit/s/Hz
Uplink average spectral efficiency		0.1 bit/s/Hz
Downlink 5th percentile user spectral efficiency	5% point of the CDF of the number of correctly received bits, divided by the channel bandwidth	0.03 bit/s/Hz
Uplink 5th percentile user spectral efficiency		0.003 bit/s/Hz
User plane latency	The time required for a packet to traverse the network from a source to a destination	10 ms
Control plane latency	Transition time from idle state to active state	40 ms
Mobility	Maximum moving speed allowed to maintain service transmission and QoS requirements	250 km/h
Connection density	Total amount of connected MTD devices per unit area	500/km2
Area traffic capacity	Overall traffic in a coverage area	8 kbit/s/km2 (DL)
		1.5 kbit/s/km2 (UL)
Reliability	Capability of transmitting traffic with high success probability	1-10−3

NOTE: The minimum performance requirements for the terrestrial component of IMT-2020 can be found in Report ITU-R M.2410.

Annex 2(for information only)Potential performance requirements for satellite component radio interface of IMT-2020 supporting channel bandwidth up to 400 MHz

Potential systems intended to provide satellite component of IMT-2020 services in frequency bands identified for this purpose, utilizing terminals capable of a channel bandwidth up to 400 MHz may be able to support some of the requirements found in § 7.2. Potential requirements for peak data rate and peak spectral efficiency can be found in the Tables below.

Terminal types	Directional terminal (1)
Peak data rate (DL)	900 Mbit/s
Peak data rate (UL)	900 Mbit/s

Terminal types	Directional terminal (1)
Peak spectral efficiency (DL)	2.3 bit/s/Hz
Peak spectral efficiency (UL)	2.3 bit/s/Hz
(1)        These requirements were derived using an assignable bandwidth of 400 MHz over one satellite beam.

The example system parameters that may be used in the eMBB-s evaluation for a potential system intended to provide satellite component of IMT-2020 services in frequency bands identified for this purpose are shown in Table 3 below.

TABLE 3

Example system parameters for evaluation process

Parameters	Values/Types/Configurations
	Rural-eMBB-s
Terminal type	Directional
Satellite orbit configuration	LEO, 600 km altitude
Spot beam pattern	Hexagonal pattern, at least 19 spot beams Influence of adjacent beam interference on the results should be accounted for, e.g. by collecting statistics only from the inner spot beams
Service link frequency	To be reported by the proponent
Channel bandwidth	400 MHz
Satellite 3 dB beam width	1.76 degrees
Satellite EIRP density	4 dBW/MHz
Satellite antenna gain	38.5 dBi
Satellite G/T	13 dB/K
Device Deployment	100% outdoor, randomly and uniformly distributed over the area
UE density	10 UEs per spot beam
UE mobility model	For mobility evaluations: fixed and identical speed of 250 km/h of all UEs, randomly and uniformly distributed direction.
Traffic model	Full buffer
UE antenna height	1.5 m

附件: R-REP-M.2514-2022-MSW-E.docx (2023-9-9 21:20, 1.64 MB) / 下载次数 2
https://www.txrjy.com/forum.php?mod=attachment&aid=NTk1Nzg4fGNiMzg3NDcwfDE3NTczMTQyMjh8MHww

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时间:  2023-9-9 21:25

作者: 阿斗通

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