Content for TR 38.848 Word version: 18.0.0

5.1 Device power consumption 5.2 Device complexity 5.3 Coverage 5.4 User experienced data rate 5.5 Maximum message size 5.6 Latency 5.7 Positioning accuracy 5.8 Connection/device density 5.9 Moving speed of device
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5 RAN design targets p. 17

5.1 Device power consumption p. 17

For Device A, the power consumption target during transmitting/receiving is ≤ 1 μW or ≤ 10 μW,

For Device B, the target during transmitting/receiving is such that:

Device A power consumption ≪ Device B power consumption < Device C power consumption; or
Device A power consumption ≤ Device B power consumption < Device C power consumption.

The device power consumption during transmitting/receiving for Device C is ≤ 1 mW to ≤ 10 mW.

5.2 Device complexity p. 17

For Device A, the complexity target is to be comparable to UHF RFID ISO18000-6C (EPC C1G2).

For Device B, the target is such that:

Device A complexity < Device B complexity < Device C complexity.

For Device C, the complexity target is to be orders-of-magnitude lower than NB-IoT.

5.3 Coverage p. 17

The coverage target for both DL and UL is represented by the maximum distance:

Between Ambient IoT device and basestation in Topology (1) and (3)
Between Ambient IoT device and intermediate or assisting node in Topology (2) and (3), respectively
Between Ambient IoT device and UE in Topology (4).

Details relevant to the maximum distance such as sensitivity, BLER, transmit power, etc. are for WG expertise to study further.

The design target of coverage is:

By indoor / outdoor, grouping different Devices into a range that WGs can sub-select within

the maximum distance of 10 - 50 m for indoor
the maximum distance of 50 - 500 m for outdoor

5.4 User experienced data rate p. 17

The user experienced data rate target is, for the uplink and downlink, maximum not less than 5 kbps, and minimum not less than 0.1 kbps.

5.5 Maximum message size p. 18

The design target of maximum message size is approximately 1000 bits to be received by the Ambient IoT device, and approximately 1000 bits to be transmitted from the Ambient IoT device, based on the maximum application layer packet size.

RAN1/RAN2 can refine as needed for TB size design.

5.6 Latency p. 18

The one-way end-to-end maximum latency targets, as defined in TR 22.840 [2], are:

Longer latency target: 10 seconds
Shorter latency target: 1 second

A use case is assigned to a latency target according to TR 22.840 [2]. RAN WGs can refine a definition of latency suitable for their work within the above.

5.7 Positioning accuracy p. 18

The design target of absolute positioning accuracy when performed by the cellular network (including assisting nodes when present) is:

1~3 meters @ 90% indoor location.
Several tens of meters @ 90% outdoor location.

The design target of relative ranging accuracy for topology 4 is:

1~3 meters @ 90% indoor and outdoor location

5.8 Connection/device density p. 18

According to the consolidated potential KPIs in TR 22.840 [2], the maximum connection density target is:

150 devices per 100 m2 for indoor scenarios.
20 devices per 100 m2 for outdoor scenarios.

RAN WGs will define the 2D or 3D distribution(s) of devices.

5.9 Moving speed of device p. 18

The design target of moving speed of Ambient IoT device is 10 km/h, at least for indoor scenarios.