Spatial quasi-co-location for radio link monitoring in new radio mobile communications
AssigneeMediatek Inc.
InventorsHsuan-Li Lin, Kuhn-Chang Lin, Tsang-Wei Yu
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Abstract
Techniques and examples of determination of receiver (RX) beam for radio link monitoring (RLM) based on available spatial quasi-co-location (QCL) information in New Radio (NR) mobile communications are described. An apparatus receives downlink (DL) signaling from a network. The apparatus determines whether to extend an evaluation period of RLM based on a quasi-co-location (QCL) association provided in at least the DL signaling. The apparatus then executes extension of the evaluation period of the RLM, or not, based on a result of the determining.
Claims10
A method, comprising:
- receiving, by a processor of an apparatus via a transceiver of the apparatus, downlink (DL) signaling from a network;
- and
- determining, by the processor, not to extend an evaluation period of radio link monitoring (RLM) responsive to a condition being met based on quasi-co-location (QCL) related information provided in at least the DL signaling,
- wherein the determining comprises determining based on an explicit RLM reference signal (RLM-RS) or an implicit RLM-RS,
- wherein the determining based on the explicit RLM-RS comprises determining not to increase a scaling factor for the evaluation period for receiving (RX) beam sweeping in an event that:
- an RLM-RS is configured with an associated transmission configuration indication (TCI) state identification (ID) which is in a TCI table, and
- the associated TCI state ID is associated to a beam management (BM) configuration in a BM configuration list;
- wherein the determining based on the implicit RLM-RS comprises determining not to increase a scaling factor for the evaluation period for the RX beam sweeping in an event that a TCI state ID associated to a reference signal (RS) configuration for a physical downlink control channel (PDCCH) is associated to a BM configuration in a BM configuration list,
- wherein the condition comprises that the explicit RLM-RS or the implicit RLM-RS is time-division multiplexed with synchronization signal blocks (SSBs).
An apparatus, comprising:
- a transceiver which, during operation, wirelessly communicates with a network, the transceiver comprising a plurality of receiver antennas and a plurality of transmitter antennas;
- and
- a processor coupled to the transceiver such that, during operation, the processor performs operations comprising:
- receiving, via the transceiver, downlink (DL) signaling from a network;
- and
- determining not to extend an evaluation period of radio link monitoring (RLM) responsive to a condition being met based on quasi-co-location (QCL) related information provided in at least the DL signaling,
- wherein the determining comprises determining based on an explicit RLM reference signal (RLM-RS) or an implicit RLM-RS,
- wherein the determining based on the explicit RLM-RS comprises determining not to increase a scaling factor for the evaluation period for receiving (RX) beam sweeping in an event that:
- an RLM-RS is configured with an associated transmission configuration indication (TCI) state identification (ID) which is in a TCI table, and
- the associated TCI state ID is associated to a beam management (BM) configuration in a BM configuration list;
- wherein the determining based on the implicit RLM-RS comprises determining not to increase a scaling factor for the evaluation period for the RX beam sweeping in an event that a TCI state ID associated to a reference signal (RS) configuration for a physical downlink control channel (PDCCH) is associated to a BM configuration in a BM configuration list,
- wherein the condition comprises that the explicit RLM-RS or the implicit RLM-RS is time-division multiplexed with synchronization signal blocks (SSBs),
- wherein the condition comprises a channel state information reference signal (CSI-RS) resource for the RLM being spatially quasi-co-located to the SSBs configured for a layer 1 reference signal received power (L1-RSRP) reporting.
Dependencies are inferred from the claim text.