Examples of MIMO in a sentence
Analysis of specification impactsThe following potential specification impacts were identified in the contributions:S1: UE capability indication to notify the NW of UE’s reduced capability [1, 4, 13].S2: Small RAN1 specification impacts [11]S3: Limited or no significant specification impacts [2, 15]S4: Reduced to 2 MIMO layers in FR1 can provide minimized specification impacts [3].S5: No RI and LI report are reduced for single MIMO layer support.
Furthermore, a UE’s MIMO layer support could only be known to the gNB after it has retrieved the UE capability from the UE.
Due to the limitation in the current specifications, legacy UEs can only be scheduled with single MIMO layer for initial access.
Furthermore, contribution [26] proposes additional UE capabilities related to MIMO and 256QAM.
Having a RedCap UE with reduced maximum MIMO layer support in the same network, will not affect the number of MIMO layers to be scheduled for the legacy UEs or the RedCap UEs for initial access transmissions.C2: Restricted to 2 MIMO layers in FR1 have no obvious coexistence issue is envisioned [3].C3: Implicit restrictions on TBS may impact on SIB/Msg4/Paging [24].
Optional features from R15 onwards (e.g. CA, MIMO) as well as implementation-based energy saving techniques should be explicitly reported and described if used in the evaluation baseline.
Table 7.2.2-2 summarizes the estimated cost for a device with reduced number of Rx branches and a corresponding reduction of the supported maximum number of downlink MIMO layers, relative to the reference NR device (see evaluation methodology described in clause 6.1) and averaged over the results provided by the sourcing companies.
For inter-band carrier aggregation, with or without MIMO, TAE shall not exceed 3µs.
Combinations with optional featuresSeveral contributions [12, 13, 18, 24, 27, 34] discuss combinations with optional features, especially MIMO and 256QAM.
For intra-band contiguous carrier aggregation, with or without MIMO, TAE shall not exceed 260ns.