Apparatus and method for RSRP measurement and allocation of downlink transmission resources
Embodiments of the present disclosure describe apparatuses, methods and machine-readable storage medium for Reference Signal Received Power (RSRP) measurement and allocation of Downlink (DL) transmission resources. A user equipment (UE) may detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, and determine a subcarrier spacing (SCS) thereof. Mapping the first SS/PBCH block to OFDM symbols may be dependent on the SCS and a first SS/PBCH block index of the first SS/PBCH block. The UE may determine, based on the first SS/PBCH block and the SCS, a number of symbols of the slot or the slot pair for a CORESET for reception of a DL control channel associated with Remaining Minimum System Information (RMSI). The UE may decode the DL control channel in the CORESET. The DL control channel may be configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.
1. An apparatus for use in a User Equipment (UE), comprising:
a radio frequency (RF) interface configured to provide a set of slots received from an Access Node (AN); and
a processor coupled with the RF interface and configured to:
receive the set of slots from the RF interface;
detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, transmitted by the AN, of a plurality of possible SS/PBCH blocks in a slot or a slot pair;
determine a Subcarrier Spacing (SCS) of the first SS/PBCH block, wherein mapping of the first SS/PBCH block to orthogonal frequency division multiplexing (OFDM) symbols is dependent on the determined SCS and a first SS/PBCH block index of the first SS/PBCH block;
determine, based on the first SS/PBCH block and the determined SCS, a number of one or more symbols of the slot or the slot pair as symbols for a control resource set (CORSESET) for reception of a downlink (DL) control channel associated with Remaining Minimum System Information (RMSI); and
decode the DL control channel in the CORESET transmitted from the AN on the number of one or more symbols, wherein the DL control channel is configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.
2. The apparatus of claim 1 , wherein the processor is further configured to:
perform a DL measurement on the number of one or more symbols.
3. The apparatus of claim 1 , wherein when the SCS is 15 kHz, 30 kHz, or 120 kHz, the slot comprises 14 symbols, the number is 1 or 2 and the number of one or more symbols of the slot are determined as the symbols for DL transmission.
4. The apparatus of claim 1 , wherein when the SCS is 240 kHz, the slot pair comprises 28 symbols, the number is 1, 2, 3 or 4 and the number of symbols of the slot pair are determined as the symbols for DL transmission.
5. The apparatus of claim 1 , wherein the processor is further configured to:
determine the number of one or more symbols according to a predefined correspondence between indexes of the number of symbols and indexes of the one or more SS/PBCH blocks.
6. A User Equipment (UE) device, comprising:
radio frequency (RF) circuitry configured to receive a set of slots from an access node (AN);
one or more antennas, communicatively coupled to the RF circuitry; and
baseband circuitry, communicatively coupled to the RF circuitry, and configured to:
receive the set of slots from the RF circuitry;
detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, transmitted by the AN, of a plurality of possible SS/PBCH blocks in a slot or a slot pair;
determine a Subcarrier Spacing (SCS) of the first SS/PBCH block, wherein mapping of the first SS/PBCH block to orthogonal frequency division multiplexing (OFDM) symbols is dependent on the determined SCS and a first SS/PBCH block index of the first SS/PBCH block;
determine, based on the first SS/PBCH block and the determined SCS, a number of one or more symbols of the slot or the slot pair as symbols for a control resource set (CORSESET) for reception of a downlink (DL) control channel associated with Remaining Minimum System Information (RMSI); and
decode the DL control channel in the CORESET transmitted from the AN on the number of one or more symbols, wherein the DL control channel is configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.
7. The UE device of claim 6 , wherein the baseband circuitry is further configured to:
perform a DL measurement on the number of one or more symbols.
8. The UE device of claim 6 , wherein when the SCS is 15 kHz, 30 kHz, or 120 kHz, the slot comprises 14 symbols, the number is 1 or 2 and the number of one or more symbols of the slot are determined as the symbols for DL transmission.
9. The UE device of claim 6 , wherein when the SCS is 240 kHz, the slot pair comprises 28 symbols, the number is 1, 2, 3 or 4 and the number of symbols of the slot pair are determined as the symbols for DL transmission.
10. The UE device of claim 6 , wherein the baseband circuitry is further configured to:
determine the number of one or more symbols according to a predefined correspondence between indexes of the number of symbols and indexes of the first SS/PBCH block.
11. A non-transitory computer-readable memory medium storing software instructions configured to, when executed by a processor of a user equipment (UE) device, cause the UE device to:
receive a set of slots from an access node (AN);
detect a first Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, transmitted by the AN, of a plurality of possible SS/PBCH blocks in a slot or a slot pair;
determine a Subcarrier Spacing (SCS) of the first SS/PBCH block, wherein mapping of the first SS/PBCH block to orthogonal frequency division multiplexing (OFDM) symbols is dependent on the determined SCS and a first SS/PBCH block index of the first SS/PBCH block;
determine, based on the first SS/PBCH block and the determined SCS, a number of one or more symbols of the slot or the slot pair as symbols for a control resource set (CORSESET) for reception of a downlink (DL) control channel associated with Remaining Minimum System Information (RMSI); and
decode the DL control channel in the CORESET transmitted from the AN on the number of one or more symbols, wherein the DL control channel is configured to indicate a DL data channel carrying the RMSI associated with the first SS/PBCH block.
12. The non-transitory computer-readable memory medium of claim 11 , wherein the software instructions are further configured to cause the UE device to:
perform a DL measurement on the number of one or more symbols.
13. The non-transitory computer-readable memory medium of claim 11 , wherein when the SCS is 15 kHz, 30 kHz, or 120 kHz, the slot comprises 14 symbols, the number is 1 or 2 and the number of one or more symbols of the slot are determined as the symbols for DL transmission.
14. The non-transitory computer-readable memory medium of claim 11 , wherein when the SCS is 240 kHz, the slot pair comprises 28 symbols, the number is 1, 2, 3 or 4 and the number of symbols of the slot pair are determined as the symbols for DL transmission.
15. The non-transitory computer-readable memory medium of claim 11 , wherein the software instructions are further configured to cause the UE device to:
determine the number of one or more symbols according to a predefined correspondence between indexes of the number of symbols and indexes of the first SS/PBCH block.