IP Library › Granted Patent US 12696193
Granted Patent B2
US 12696193 · App. 18/563,495 · Granted Jul 28, 2026

At least partial disablement of transmission port based on thermal condition and associated capability indication

Inventors: James Francis Geekie (Carlsbad, CA); Alexei Yurievitch Gorokhov (San Diego, CA); Raghu Narayan Challa (San Diego, CA); Mihir Vijay Laghate (San Diego, CA); Mahbod Ghelichi (San Diego, CA); Enoch Shiao-Kuang Lu (San Diego, CA)
Assignee: QUALCOMM Incorproated
H04W52/0274H04W36/04H04W36/36H04W52/0251H04W76/14G01K13/00
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Quick Facts
Patent No.
US 12696193
App. No.
18/563,495
Granted
Jul 28, 2026
Kind
B2
Abstract

Disclosed are techniques for wireless communication. In an aspect, a User Equipment (UE) may partially disable transmissions on a transmission port based on a temperature condition (e.g., chipset temperature or skin temperature exceeding threshold). In a further aspect, the UE may enable the partially disabled transmissions on the transmission port in response to cessation of the temperature condition. In a further aspect, the UE may transmit a capability indication to a base station that indicates that the UE is capable of supporting a transition from a multi-layer (rank-2) communication mode to a single-layer (rank-1) communication mode.

Claims (55)

1 . A method of operating performed by a user equipment (UE) configured with multiple transmission ports, comprising:

performing transmissions on a first transmission port and a second transmission port in accordance with a transmission mode;

determining that a temperature parameter exceeds a first threshold;

disabling sounding reference signal (SRS) transmissions over the second transmission port in response to the determination, wherein one or more non-SRS signals are permitted to be transmitted over the second transmission port; and

performing, while the SRS transmissions over the second transmission port are disabled, transmissions on the first transmission port in accordance with the transmission mode.

2 . The method of claim 1 , wherein the transmission mode corresponds to a multi-layer transmission mode.

3 . The method of claim 1 , further comprising:

transitioning from a multi-layer transmission mode to a single-layer transmission mode in response to the SRS transmission disablement.

4 . The method of claim 3 , wherein the transitioning occurs in response to receipt of one or more single-layer grants.

5 . The method of claim 1 , wherein the temperature parameter corresponds to a skin temperature, a surface temperature, or a chipset temperature.

6 . The method of claim 1 ,

wherein the first threshold is fixed, or

wherein the first threshold is dynamic based on one or more operating criteria associated with the UE.

7 . The method of claim 1 , further comprising:

transmitting, to a base station, a capability indication indicating that the UE supports a transition from a multi-layer transmission mode to a single-layer transmission mode in response to a thermal condition.

8 . A method performed by a base station, comprising:

receiving, from a user equipment (UE) configured with multiple transmission ports, a capability indication indicating that the UE supports a transition from a multi-layer transmission mode to a single-layer transmission mode in response to a thermal condition;

inferring an indication of the thermal condition from one or more sounding reference signals (SRSs) being skipped from transmission via a transmission port of the UE; and

transitioning communication with the UE from the multi-layer transmission mode to the single-layer transmission mode based on the capability indication and the indication of the thermal condition indication.

9 . The method of claim 8 , wherein the capability indication is received via radio resource control (RRC) signaling.

10 . The method of claim 8 , wherein the transitioning comprises transmitting one or more single-layer grants to the UE.

11 . A user equipment (UE), comprising:

a memory;

at least one transceiver; and

at least one processor communicatively coupled to the memory and the at least one transceiver, wherein the at least one processor is configured to:

perform transmissions on a first transmission port and a second transmission port in accordance with a transmission mode;

determine that a temperature parameter exceeds a first threshold;

disabling sounding reference signal (SRS) transmissions over the second transmission port in response to the determination, wherein one or more non-SRS signals are permitted to be transmitted over the second transmission port; and

perform, while the SRS transmissions over the second transmission port are disabled, transmissions on the first transmission port in accordance with the transmission mode.

12 . The UE of claim 11 , wherein the at least one processor is configured to:

determine that the temperature parameter no longer exceeds the first threshold or does not exceed a second threshold; and

enable the disabled SRS transmissions over the second transmission port in response to the determination that the temperature parameter no longer exceeds the first threshold or does not exceed the second threshold.

13 . The UE of claim 11 , wherein the temperature parameter corresponds to a skin temperature, a surface temperature, or a chipset temperature.

14 . The UE of claim 11 , wherein the at least one processor is configured to:

transition from a multi-layer transmission mode to a single-layer transmission mode in response to the SRS transmission disablement.

15 . The UE of claim 11 ,

wherein the first threshold is fixed, or

wherein the first threshold is dynamic based on one or more operating criteria associated with the UE.

16 . The UE of claim 11 , wherein the at least one processor is configured to:

transmit, to a base station, a capability indication indicating that the UE supports a transition from a multi-layer transmission mode to a single-layer transmission mode in response to a thermal condition.

17 . An apparatus, comprising:

means for performing transmissions on a first transmission port and a second transmission port in accordance with a transmission mode;

means for determining that a temperature parameter exceeds a first threshold;

means for disabling sounding reference signal (SRS) transmissions over the second transmission port in response to the determination, wherein one or more non-SRS signals are permitted to be transmitted over the second transmission port; and

means for performing, while the SRS transmissions over the second transmission port are disabled, transmissions on the first transmission port in accordance with the transmission mode.

18 . The apparatus of claim 17 , wherein the transmission mode corresponds to a multi-layer transmission mode.

19 . The apparatus of claim 17 , further comprising:

means for transitioning from a multi-layer transmission mode to a single-layer transmission mode in response to the SRS transmission disablement.

20 . The apparatus of claim 19 , wherein the transitioning occurs in response to receipt of one or more single-layer grants.

21 . The apparatus of claim 17 , wherein the temperature parameter corresponds to a skin temperature, a surface temperature, or a chipset temperature.

22 . The apparatus of claim 17 ,

wherein the first threshold is fixed, or

wherein the first threshold is dynamic based on one or more operating criteria associated with the apparatus.

23 . The apparatus of claim 17 , further comprising:

means for transmitting, to a base station, a capability indication indicating that the apparatus supports a transition from a multi-layer transmission mode to a single-layer transmission mode in response to a thermal condition.