IP Library › Granted Patent US 12713228
Granted Patent B2
US 12713228 · App. 18/175,065 · Granted Aug 18, 2026

User equipment antenna capability indication

Inventors: Chiranjib Saha (San Diego, CA); Alberto Rico Alvarino (San Diego, CA); Umesh Phuyal (San Diego, CA); Le Liu (San Jose, CA); Kazuki Takeda (Minato-ku, JP); Peter Gaal (San Diego, CA)
Assignee: QUALCOMM Incorproated
H04W8/22
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Quick Facts
Patent No.
US 12713228
App. No.
18/175,065
Granted
Aug 18, 2026
Kind
B2
Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a UE capability information request message. The UE may transmit, to the network entity in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE. Numerous other aspects are described.

Claims (111)

1 . An apparatus for wireless communication at a user equipment (UE), comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

receive, from a network entity, a UE capability information request message; and

transmit, to the network entity in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE that indicate a classification of an antenna as omnidirectional or directional, a direction of a main lobe of the antenna, a quantity of side lobes for the antenna, a beamwidth of a side lobe, a gain of the side lobe, an orientation of the side lobe with respect to the main lobe, and whether the antenna is steerable.

2 . The apparatus of claim 1 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band combination basis.

3 . The apparatus of claim 1 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band basis.

4 . The apparatus of claim 1 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-component carrier basis.

5 . The apparatus of claim 1 ,

wherein the one or more antenna capabilities of the UE indicate one or more of:

a quantity of physical antennas for transmission,

a quantity of physical antennas for reception,

a polarization type of an antenna,

an axial ratio for circular polarization,

a main lobe beamwidth of an antenna,

a directive gain of a main lobe of an antenna,

side lobe information for an antenna,

a switching time between antennas, or

an effective isotropic radiated power (EIRP) of an antenna.

6 . The apparatus of claim 1 ,

wherein the UE capability information message further indicates one or more antenna group capabilities of the UE.

7 . The apparatus of claim 6 ,

wherein the UE capability information message indicates the one or more antenna group capabilities on a per-antenna group basis.

8 . The apparatus of claim 6 ,

wherein the one or more antenna group capabilities of the UE indicate one or more of:

a maximum quantity of transmission layers for an antenna group, or

a codebook usage for an antenna group.

9 . An apparatus for wireless communication at a network entity, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

transmit a user equipment (UE) capability information request message for a UE; and

receive, in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE that indicate a classification of an antenna as omnidirectional or directional, a direction of a main lobe of the antenna, a quantity of side lobes for the antenna, a beamwidth of a side lobe, a gain of the side lobe, an orientation of the side lobe with respect to the main lobe, and whether the antenna is steerable.

10 . The apparatus of claim 9 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band combination basis.

11 . The apparatus of claim 9 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band basis.

12 . The apparatus of claim 9 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-component carrier basis.

13 . The apparatus of claim 9 ,

wherein the one or more antenna capabilities of the UE indicate one or more of:

a quantity of physical antennas for transmission,

a quantity of physical antennas for reception,

a polarization type of an antenna,

an axial ratio for circular polarization,

a main lobe beamwidth of an antenna,

a directive gain of a main lobe of an antenna,

side lobe information for an antenna,

a switching time between antennas, or

an effective isotropic radiated power (EIRP) of an antenna.

14 . The apparatus of claim 9 ,

wherein the UE capability information message further indicates one or more antenna group capabilities of the UE.

15 . The apparatus of claim 14 ,

wherein the UE capability information message indicates the one or more antenna group capabilities on a per-antenna group basis.

16 . The apparatus of claim 14 ,

wherein the one or more antenna group capabilities of the UE indicate one or more of:

a maximum quantity of transmission layers for an antenna group, or

a codebook usage for an antenna group.

17 . A method of wireless communication performed by an apparatus of a user equipment (UE), comprising:

receiving, from a network entity, a UE capability information request message; and

transmitting, to the network entity in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE that indicate a classification of an antenna as omnidirectional or directional, a direction of a main lobe of the antenna, a quantity of side lobes for the antenna, a beamwidth of a side lobe, a gain of the side lobe, an orientation of the side lobe with respect to the main lobe, and whether the antenna is steerable.

18 . The method of claim 17 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band combination basis.

19 . The method of claim 17 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band basis.

20 . The method of claim 17 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-component carrier basis.

21 . The method of claim 17 ,

wherein the one or more antenna capabilities of the UE indicate one or more of:

a quantity of physical antennas for transmission,

a quantity of physical antennas for reception,

a polarization type of an antenna,

an axial ratio for circular polarization,

a main lobe beamwidth of an antenna,

a directive gain of a main lobe of an antenna,

side lobe information for an antenna,

a switching time between antennas, or

an effective isotropic radiated power (EIRP) of an antenna.

22 . The method of claim 17 ,

wherein the UE capability information message further indicates one or more antenna group capabilities of the UE.

23 . The method of claim 22 ,

wherein the UE capability information message indicates the one or more antenna group capabilities on a per-antenna group basis.

24 . The method of claim 22 ,

wherein the one or more antenna group capabilities of the UE indicate one or more of:

a maximum quantity of transmission layers for an antenna group, or

a codebook usage for an antenna group.

25 . A method of wireless communication performed by an apparatus of a network entity, comprising:

transmitting a user equipment (UE) capability information request message for a UE; and

receiving, in response to the UE capability information request message, a UE capability information message indicating one or more antenna capabilities of the UE that indicate a classification of an antenna as omnidirectional or directional, a direction of a main lobe of the antenna, a quantity of side lobes for the antenna, a beamwidth of a side lobe, a gain of the side lobe, an orientation of the side lobe with respect to the main lobe, and whether the antenna is steerable.

26 . The method of claim 25 ,

wherein the one or more antenna capabilities of the UE indicate one or more of:

a quantity of physical antennas for transmission,

a quantity of physical antennas for reception,

a polarization type of an antenna,

an axial ratio for circular polarization,

a main lobe beamwidth of an antenna,

a directive gain of a main lobe of an antenna,

side lobe information for an antenna,

a switching time between antennas,

or

an effective isotropic radiated power (EIRP) of an antenna.

27 . The method of claim 25 ,

wherein the UE capability information message further indicates one or more antenna group capabilities of the UE.

28 . The method of claim 27 ,

wherein the UE capability information message indicates the one or more antenna group capabilities on a per-antenna group basis.

29 . The method of claim 25 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band combination basis.

30 . The method of claim 25 ,

wherein the UE capability information message indicates the one or more antenna capabilities on a per-band basis.