Beam management
Layer 2 structures and procedures may be used for beam management in new radio networks. In a first example, a new radio layer 2 structure may be used to facilitate beam management at the medium access control sublayer. In a second example, new radio feedback mechanisms may be signaled between peer medium access control entities and used to assist with beam management. In a third example, new radio beam management procedures may include new radio beam training, new radio beam alignment, new radio beam tracking, or new radio beam configuration. In a fourth example, new radio connection control procedure may include new radio initial access or new radio mobility management.
1. An apparatus for wireless communication, the apparatus comprising:
a processor; and
a memory coupled with the processor, the memory storing executable instructions that when executed by the processor cause the processor to effectuate operations comprising:
communicating with a user equipment via a first beam, the first beam configured as a serving beam;
transmitting beam reference signals to the user equipment, the beam reference signals used for measurements on a plurality of beams including the first beam and a second beam based on the beam reference signals, the second beam not configured as a serving beam;
receiving a feedback based on the measurements from the user equipment;
transmitting to the user equipment a beam addition/release command in a medium access control—control element (MAC-CE), the beam addition/release command comprising a plurality of bit field, each of the plurality of bit field is set to 1 or 0 denoting addition or release of corresponding beam; and
controlling addition or release of one or more beams to or from the set of serving beams based on the beam addition/release command.
2. The apparatus of claim 1 , the operations further comprising obtaining a report of the measurements from the user equipment.
3. The apparatus of claim 1 , wherein the second beam is a candidate beam.
4. The apparatus of claim 1 , the operations further comprising obtaining a report of the measurements from the user equipment based on a measurement reaching a threshold.
5. The apparatus of claim 1 , the operations further comprising scheduling assignments via the serving beam for scheduling assignments.
6. The apparatus of claim 1 , wherein the measurements comprises reference signal received power.
7. The apparatus of claim 1 , wherein the apparatus is a gNodeB.
8. An apparatus for wireless communication, the apparatus comprising:
a processor; and
a memory coupled with the processor, the memory storing executable instructions that when executed by the processor cause the processor to effectuate operations comprising:
communicating with a network node via a first beam, the first beam configured as a serving beam;
performing measurements on a plurality of beams including the first beam and a second beam based on the beam reference signals, the second beam not configured as a serving beam;
transmitting a feedback based on the measurements on the plurality of beams;
receiving a beam addition/release command in medium access control—control element (MAC-CE) from the network node, the beam addition/release command comprising a plurality of bit fields, each bit field of the plurality of bit fields set to 1 or 0 which denotes addition or release of a corresponding beam; and
controlling addition or release of one or more beams to or from the set of serving beams based on the beam addition/release command.
9. The apparatus of claim 8 , the operations further comprising reporting the measurements to the network node.
10. The apparatus of claim 8 , wherein the second beam is a candidate beam.
11. The apparatus of claim 8 , the operations further comprising based on a measurement reaching a threshold, reporting the measurement to the network node.
12. The apparatus of claim 8 , wherein the measurements comprises reference signal received power.
13. The apparatus of claim 8 , the operations further comprising monitoring a serving beam for scheduling assignments.
14. The apparatus of claim 8 , wherein the apparatus is a user equipment (UE).
15. A computer readable storage medium, which is not a signal per se, storing computer executable instructions that when executed by a computing device cause said computing device to effectuate operations comprising:
communicating with a network node via a first beam, the first beam configured as a serving beam;
performing measurements on a plurality of beams including the first beam and a second beam based on the beam reference signals, the second beam not configured in the set of serving beams;
transmitting a feedback based on the measurements on the plurality of beams;
receiving a beam addition/release command in medium access control—control element (MAC-CE) from the network node, the beam addition/release command comprising a plurality of bit fields, each bit field of the plurality of bit fields set to 1 or 0 which denotes addition or release of a corresponding beam; and
controlling addition or release of one or more beams to or from the set of serving beams based on the beam addition/release command.
16. The computer readable storage medium of claim 15 , the operations further comprising reporting the measurements to the network node.
17. The computer readable storage medium of claim 15 , wherein the second beam is a candidate beam.
18. The computer readable storage medium of claim 15 , the operations further comprising based on a measurement reaching a threshold, reporting the measurement to the network node.
19. The computer readable storage medium of claim 15 , wherein the measurements comprises reference signal received power.
20. The computer readable storage medium of claim 15 , the operations further comprising monitoring a serving beam for scheduling assignments.