Beam and secondary component carrier selection for downlink and uplink

Patent metadata

Field	Value
Publication number	US-12335759-B2
Application number	US-202218057030-A
Country	US
Kind code	B2
Filing date	Nov 18, 2022
Priority date	Nov 18, 2022
Publication date	Jun 17, 2025
Grant date	Jun 17, 2025

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform first measurements associated with secondary component carriers (SCCs) for downlink and perform second measurements associated with beams. The UE may select a downlink SCC in frequency range 2 (FR2) as a first anchor CC with a primary component carrier (PCC) from frequency range 1 (FR1), from the SCCs for downlink, based on the first measurements, in combination with a downlink beam based on the second measurements. The UE may perform third measurements associated with SCCs for uplink and perform fourth measurements associated with the beams. The UE may select an uplink SCC in FR2 as a second anchor CC with the PCC from FR1, from the SCCs for uplink, based on the third measurements, in combination with an uplink beam based on the fourth measurements. Numerous other aspects are described.

First claim

What is claimed is:

1. An apparatus for wireless communication at a user equipment (UE), comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
perform a plurality of first measurements on a corresponding plurality of first reference signals from a network associated with a corresponding plurality of secondary component carriers (SCCs) for downlink;
perform a plurality of second measurements associated with a corresponding plurality of beams;
select a downlink SCC in frequency range 2 (FR2) as a first anchor component carrier (CC) with a primary component carrier (PCC) from frequency range 1 (FR1), from the plurality of SCCs for downlink, based at least in part on the plurality of first measurements, in combination with a downlink beam based at least in part on the plurality of second measurements;
perform a plurality of third measurements on a corresponding plurality of second reference signals from the network associated with a corresponding plurality of SCCs for uplink;
perform a plurality of fourth measurements associated with the corresponding plurality of beams; and
select an uplink SCC in FR2 as a second anchor CC with the PCC from FR1, from the plurality of SCCs for uplink, based at least in part on the plurality of third measurements, in combination with an uplink beam based at least in part on the plurality of fourth measurements.

2. The apparatus of claim 1 , wherein the plurality of first measurements include layer 3 measurements.

3. The apparatus of claim 1 , wherein the plurality of third measurements include layer 3 measurements.

4. The apparatus of claim 1 , wherein the plurality of first measurements include layer 1 measurements.

5. The apparatus of claim 1 , wherein the plurality of third measurements include layer 1 measurements.

6. The apparatus of claim 1 , wherein the one or more processors are further configured to:
perform beam refinement for the downlink beam in a first synchronization signal block (SSB) occasion; and
perform beam refinement for the uplink beam in a second SSB occasion.

7. The apparatus of claim 1 , wherein the one or more processors are further configured to:
select the uplink beam or the downlink beam for communications with the network.

8. The apparatus of claim 1 , wherein the one or more processors are further configured to:
perform beam refinement for the downlink beam and the uplink beam.

9. The apparatus of claim 1 , wherein the one or more processors are further configured to:
transmit to the network using the uplink beam on the uplink SCC; and
receive from the network using the downlink beam on the downlink SCC.

10. A method of wireless communication performed by a user equipment (UE), comprising:
performing a plurality of first measurements on a corresponding plurality of first reference signals from a network associated with a corresponding plurality of secondary component carriers (SCCs) for downlink;
performing a plurality of second measurements associated with a corresponding plurality of beams;
selecting a downlink SCC in frequency range 2 (FR2) as a first anchor component carrier (CC) with a primary component carrier (PCC) from frequency range 1 (FR1), from the plurality of SCCs for downlink, based at least in part on the plurality of first measurements, in combination with a downlink beam based at least in part on the plurality of second measurements;
performing a plurality of third measurements on a corresponding plurality of second reference signals from the network associated with a corresponding plurality of SCCs for uplink;
performing a plurality of fourth measurements associated with the corresponding plurality of beams; and
selecting an uplink SCC in FR2 as a second anchor CC with the PCC from FR1, from the plurality of SCCs for uplink, based at least in part on the plurality of third measurements, in combination with an uplink beam based at least in part on the plurality of fourth measurements.

11. The method of claim 10 , wherein the plurality of first measurements include layer 3 measurements.

12. The method of claim 10 , wherein the plurality of third measurements include layer 3 measurements.

13. The method of claim 10 , wherein the plurality of first measurements include layer 1 measurements.

14. The method of claim 10 , wherein the plurality of third measurements include layer 1 measurements.

15. The method of claim 10 , further comprising:
performing beam refinement for the downlink beam in a first synchronization signal block (SSB) occasion; and
performing beam refinement for the uplink beam in a second SSB occasion.

16. The method of claim 10 , further comprising:
selecting the uplink beam or the downlink beam for communications with the network.

17. The method of claim 10 , further comprising:
performing beam refinement for the downlink beam and the uplink beam.

18. The method of claim 10 , further comprising:
transmitting to the network using the uplink beam on the uplink SCC; and
receiving from the network using the downlink beam on the downlink SCC.

19. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
perform a plurality of first measurements on a corresponding plurality of first reference signals from a network associated with a corresponding plurality of secondary component carriers (SCCs) for downlink;
perform a plurality of second measurements associated with a corresponding plurality of beams;
select a downlink SCC in frequency range 2 (FR2) as a first anchor component carrier (CC) with a primary component carrier (PCC) from frequency range 1 (FR1), from the plurality of SCCs for downlink, based at least in part on the plurality of first measurements, in combination with a downlink beam based at least in part on the plurality of second measurements;
perform a plurality of third measurements on a corresponding plurality of second reference signals from the network associated with a corresponding plurality of SCCs for uplink;
perform a plurality of fourth measurements associated with the corresponding plurality of beams; and
select an uplink SCC in FR2 as a second anchor CC with the PCC from FR1, from the plurality of SCCs for uplink, based at least in part on the plurality of third measurements, in combination with an uplink beam based at least in part on the plurality of fourth measurements.

20. The non-transitory computer-readable medium of claim 19 , wherein the plurality of first measurements include layer 3 measurements.

21. The non-transitory computer-readable medium of claim 19 , wherein the plurality of third measurements include layer 3 measurements.

22. The non-transitory computer-readable medium of claim 19 , wherein the plurality of first measurements include layer 1 measurements.

23. The non-transitory computer-readable medium of claim 19 , wherein the plurality of third measurements include layer 1 measurements.

24. The non-transitory computer-readable medium of claim 19 , wherein the one or more instructions further cause the UE to:
perform beam refinement for the downlink beam in a first synchronization signal block (SSB) occasion; and
perform beam refinement for the uplink beam in a second SSB occasion.

25. The non-transitory compu

Assignees

• Qualcomm Inc

Inventors

• Agarwal Rishav
• Karakkad Kesavan Namboodiri Vishnu Namboodiri

Classifications

• H04L5/001 Primary

  the frequencies being arranged in component carriers · CPC title

• H04B7/06958

  Multistage beam selection, e.g. beam refinement · CPC title

• H04L5/0092

  Indication of how the channel is divided · CPC title

• H04L5/005

  of common pilots, i.e. pilots destined for multiple users or terminals · CPC title

• H04L5/0041

  Frequency-non-contiguous · CPC title