Techniques for mitigating interference for transmissions of a periodic multi-beam discovery reference signal

1. A method for wireless communication at a base station, comprising:

arranging a plurality of beams in a first temporal order based at least in part on a discovery reference signal (DRS) associated with a periodic multi-beam DRS;

transmitting, on the plurality of beams arranged in the first temporal order, the DRS in a first instance of the periodic multi-beam DRS;

arranging the plurality of beams in a second temporal order based at least in part on the DRS associated with the periodic multi-beam DRS; and

transmitting, on the plurality of beams arranged in the second temporal order, the DRS in a second instance of the periodic multi-beam DRS.

2. The method of claim 1 , further comprising:

transmitting the DRS on a beam in each instance of a plurality of instances of the periodic multi-beam DRS, wherein the plurality of instances of the periodic multi-beam DRS comprises the first instance of the periodic multi-beam DRS and the second instance of the periodic multi-beam DRS.

3. The method of claim 2 , wherein the first instance of the periodic multi-beam DRS and the second instance of the periodic multi-beam DRS are consecutive instances based at least in part on the plurality of beams.

4. The method of claim 1 , further comprising:

transmitting the DRS on a beam in each instance of a plurality of instances of the periodic multi-beam DRS, wherein the plurality of instances of the periodic multi-beam DRS comprises the first instance of the periodic multi-beam DRS, and each instance in the plurality of instances comprises the plurality of beams arranged in the first temporal order.

5. The method of claim 4 , wherein the plurality of instances of the periodic multi-beam DRS comprise consecutive instances based at least in part on the plurality of beams.

6. The method of claim 1 , further comprising:

transmitting information identifying at least one of the first temporal order or the second temporal order; and

performing at least one random access procedure with at least one user equipment (UE) based at least in part on the periodic multi-beam DRS.

7. The method of claim 1 , further comprising:

selecting the first temporal order based at least in part on a set of one or more information bits to be conveyed by the DRS on a beam in the first instance of the periodic multi-beam DRS, wherein the one or more information bits comprise at least one of: at least a part of a cell identifier, at least a portion of timing information for a cell, at least a part of a system frame number, or a combination thereof.

8. A method for wireless communication at a user equipment (UE), comprising:

receiving on a beam of a plurality of beams, from a base station, a discovery reference signal (DRS) in at least a first instance or a second instance of a periodic multi-beam DRS, wherein the first instance of the periodic multi-beam DRS comprises the plurality of beams arranged in a first temporal order, and the second instance of the periodic multi-beam DRS comprises the plurality of beams arranged in a second temporal order that is different from the first temporal order; and

identifying at least one of the first temporal order or the second temporal order based at least in part on: first information stored at the UE, or second information received from the base station, or third information received from a second base station, or a combination thereof.

9. The method of claim 8 , further comprising:

receiving the DRS on the beam, from the base station, in each instance of a plurality of instances of the periodic multi-beam DRS, wherein the plurality of instances of the periodic multi-beam DRS comprises the first instance of the periodic multi-beam DRS and the second instance of the periodic multi-beam DRS.

10. The method of claim 9 , wherein the first instance of the periodic multi-beam DRS and the second instance of the periodic multi-beam DRS are consecutive instances based at least in part on the plurality of beams.

11. The method of claim 8 , further comprising:

receiving the DRS on the beam, from the base station, in each instance of a plurality of instances of the periodic multi-beam DRS, wherein the plurality of instances of the periodic multi-beam DRS comprises the first instance of the periodic multi-beam DRS, and each instance in the plurality of instances comprises the plurality of beams arranged in the first temporal order; and

combining the DRS across multiple instances of the plurality of instances of the periodic multi-beam DRS.

12. The method of claim 11 , wherein the plurality of instances of the periodic multi-beam DRS comprise consecutive instances based at least in part on the plurality of beams.

13. The method of claim 8 , further comprising:

performing a random access procedure with the base station based at least in part on the DRS.

14. The method of claim 8 , wherein the base station is associated with a candidate non-primary cell for the UE, the method further comprising:

receiving, from a second base station associated with a primary cell for the UE, information identifying at least one of the first temporal order or the second temporal order for the candidate non-primary cell, wherein the DRS is received from the base station based at least in part on the information received from the second base station.

15. The method of claim 8 , further comprising:

blindly detecting the first temporal order; and

inferring a set of one or more information bits based at least in part on the first temporal order, wherein the set of one or more information bits comprise at least one of: at least a part of a cell identifier, at least a portion of timing information for a cell, at least a part of a system frame number, or a combination thereof.