Information sharing for beam management in repeater
Disclosed is a method of determining an access link beam by a repeater, including receiving, from a base station, an indication of beam indices including an indicated beam and a corresponding time to apply the indicated beam and transmitting at least one resource set using the indicated beam.
1. A method comprising:
receiving, at a repeater, from a base station, a set of resources with repetition off, over a same beam;
receiving, at the repeater, from the base station, an indication of beam indices and at least one time to apply beams indicated by the beam indices; and
transmitting, from the repeater, to a user equipment, each resource from the set of resources using a respective one of the beams.
2. The method of claim 1 ,
wherein the at least one time to apply the beams is signaled by a duration, slot offsets, and symbol offsets.
3. The method of claim 2 ,
wherein the indication of beam indices is received by the repeater via higher layer signaling, wherein the higher layer signaling indicates a periodicity for the indication of beam indices.
4. The method of claim 3 , further comprising:
repeating transmission of the indication of beam indices when the higher layer signaling is radio resource control (RRC) signaling or a medium access control-control element (MAC-CE) across an indicated period.
5. The method of claim 2 , wherein the indication of beam indices is received by the repeater via downlink control information (DCI).
6. The method of claim 5 ,
wherein the DCI comprises fields, and each of the fields is dedicated to a respective one of the beams.
7. The method of claim 5 ,
wherein the DCI comprises at least one field dedicated to the time to apply the beams.
8. The method of claim 7 ,
wherein the DCI comprises a plurality of beam indication fields and a plurality of time indication fields, and each beam indication field is associated with a respective time indication field.
9. The method of claim 5 ,
wherein the indication of beam indices is transmitted to the repeater by a first radio network temporary identifier (RNTI) applied to the DCI that is different from a second RNTI used for receiving other configurations.
10. The method of claim 5 , further comprising:
prioritizing beam indication by the DCI over semi-static beam indication by radio resource control (RRC) signaling when the beam indication by the DCI collides with the semi-static beam indication by the RRC signaling.