Table 3 Main BDS RSMC Service Performance Indicators

Service success rate

≥ 95%

Service frequency

Normally once every 30 s, maximally once per second

Response time

≤ 1 s

Terminal transmission power

≤ 3 w

Service capacity

 Uplink

12,000,000 times/h

 Downlink

6,000,000 times/h

Maximum length of a single message

14,000 bit (approximately equivalent to 1000 Chinese characters)

Positioning accuracy (95%)

 RDSS

Horizontal ≤ 20 m Vertical ≤ 20 m

 CRDSS

Horizontal ≤ 10 m Vertical ≤ 10 m

Two-way timing accuracy

≤10 ns

Usage constraints and remarks

If a user’s radial velocity relative to the satellite is greater than 1000 km/h, the adaptive doppler compensation is required