US-20260129591-A1 - TECHNOLOGIES FOR INCREASING OUTPUT POWER

US20260129591A1US 20260129591 A1US20260129591 A1US 20260129591A1US-20260129591-A1

Abstract

The present application relates to devices and components, including apparatus, systems, and methods for measuring serving cell configuration. The user equipment may detect a condition, and based on the condition, it may determine a configuration associated with a set of requirements. The requirements may be associated with determining a maximum transmit power or power back-offs. The UE may determine the maximum transmit power based on the configuration. Based on the maximum transmit power, UE may perform power control or other algorithms to determine the transmit power used to transmit a signal to the network.

Inventors

Alexander Sayenko
Daniel Popp
Anatoliy S. Ioffe
Naveen Kumar R. PALLE VENKATA

Assignees

APPLE INC.

Dates

Publication Date: 20260507
Application Date: 20241107

Claims (20)

1 . A method comprising: detecting a condition associated with signal transmissions to a network; determining, based on the condition, a configuration from one or more configurations for the signal transmissions; determining a first maximum transmit power based on the configuration, the maximum transmit power exceeding a second maximum transmit power associated with a default configuration such that the first maximum transmit power corresponds to a relaxation of requirements on the signal transmissions relative to the default configuration; determining, based on the maximum transmit power, a transmit power for a signal transmission to the network; and generating a signal to be transmitted to the network with a power equal to the transmit power.
2 . The method of claim 1 , wherein the condition includes: an emergency situation; a call to an emergency number; data associated with an emergency number; a packet associated with an emergency indication or a high-priority flag; or an indication from an upper layer that a session is critical.
3 . The method of claim 1 , wherein the configuration includes a parameter associated with an out-of-band or in-band transmission requirements.
4 . The method of claim 1 , wherein said determining a maximum transmit power based on the configuration comprises: identifying a nominal maximum output power; determining a power back-off based on the configuration; and determining the maximum transmit power based on the nominal maximum output power and the power back-off.
5 . The method of claim 1 , further comprising: generating a report, to be transmitted to a base station, including an indication of the configuration or the maximum transmit power.
6 . The method of claim 1 , wherein the maximum transmit power is equal to a nominal maximum output power or the transmit power is equal to the maximum transmit power.
7 . An apparatus comprising: processing circuitry to: process one or more configurations associated with determining maximum transmit powers for signal transmissions to a non-terrestrial network (NTN); identify a configuration of the one or more configurations; determine a first maximum transmit power based on the configuration, the maximum transmit power exceeding a second maximum transmit power associated with a default configuration such that the first maximum transmit power corresponds to a relaxation of requirements on the signal transmissions relative to the default configuration; determine, based on the maximum transmit power, a transmit power for a signal transmission to the NTN; and generate a signal to be transmitted to the NTN with a power equal to the transmit power.
8 . The apparatus of claim 7 , wherein the configuration is a default configuration.
9 . The apparatus of claim 7 , wherein: the one or more configurations are included in a system information block (SIB); and the SIB includes a bitmap to determine the one or more configurations.
10 . The apparatus of claim 7 , wherein the processing circuitry is further to: process an indication, wherein to identify a configuration of the one or more configurations the processing circuitry includes identifying the configuration of the one or more configurations based on the indication.
11 . The apparatus of claim 7 , wherein the configuration is a first configuration, and the processing circuitry is further to: detect a condition associated with a second configuration of the one or more configurations; and generate, for transmission to a base station of the NTN, an indication associated with the condition or the second configuration.
12 . The apparatus of claim 11 , wherein the requirement includes: in-band emission (IBE); spectrum emission mask (SEM); adjacent channel leakage ratio (ACLR); or specific absorption rate (SAR).
13 . The apparatus of claim 7 , wherein the processing circuitry is further to: generate a user equipment (UE) capability report, to be transmitted to a base station, including an indication of a capability to apply adjust configuration associated with determining the maximum transmit power.
14 . The apparatus of claim 7 , wherein the configuration includes a parameter associated with a maximum out-of-band emission power.
15 . The apparatus of claim 7 , wherein to determine a maximum transmit power based on the configuration the processing circuitry is to: identify a nominal maximum output power; determine a power back-off based on the configuration; and determine the maximum transmit power based on the nominal maximum output power and the power back-off.
16 . One or more non-transitory computer-readable media having instructions that, when executed, cause processing circuitry to: process a capability report, received from a user equipment (UE), indicating that the UE supports relaxed requirements operation associated with determining a maximum transmit power for signal transmissions to a non-terrestrial network (NTN); and generate, for transmission to the UE, an indication to enable relaxed requirements operation for signal transmission to the NTN.
17 . The one or more non-transitory computer-readable media of claim 16 , wherein the instructions, when executed, further cause the processing circuitry to: process an indication, received from the UE, associated with a condition with signal transmissions to the NTN; and generate, based on the condition, an indication of a configuration associated with a set of requirements for determining a first maximum transmit power, the first maximum transmit power exceeding a second maximum transmit power associated with a default configuration such that the first maximum transmit power corresponds to a relaxation of requirements on the signal transmissions relative to the default configuration.
18 . The one or more non-transitory computer-readable media of claim 17 , wherein: the condition includes an emergency situation, a call to an emergency number, data associated with an emergency number or a packet associated with an emergency indication or a high-priority flag; and the set of requirements include: in-band emission (IBE), spectrum emission mask (SEM), adjacent channel leakage ratio (ACLR), or specific absorption rate (SAR).
19 . The one or more non-transitory computer-readable media of claim 17 , wherein: the indication is included in a system information block (SIB) or a system information (SI).
20 . The one or more non-transitory computer-readable media of claim 17 , wherein the indication includes a bitmap and each bit in the bitmap is corresponding to a set of requirements for determining the maximum transmit power or the power back-off.

Description

TECHNICAL FIELD This application relates generally to communication networks and, in particular, to transmit power and emission limit configurations. BACKGROUND Third Generation Partnership Project (3GPP) Technical Specifications (TSs) define standards for wireless networks. These TSs describe aspects related to user plane and control plane signaling over the networks. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a network environment in accordance with some embodiments. FIG. 2 illustrates a power diagram in accordance with some embodiments. FIG. 3 illustrates a configured information element in accordance with some embodiments. FIG. 4 illustrates an operation flow/algorithmic structure in accordance with some embodiments. FIG. 5 illustrates another operation flow/algorithmic structure in accordance with some embodiments. FIG. 6 illustrates another operation flow/algorithmic structure in accordance with some embodiments. FIG. 7 illustrates a user equipment in accordance with some embodiments. FIG. 8 illustrates a network node in accordance with some embodiments. DETAILED DESCRIPTION Increasing the transmit power of user equipment (UE) may provide reliable links (e.g., with satellites or non-terrestrial network nodes) by enabling the UE to transmit signals at the highest possible power levels. The robustness and reliability of the communication link are directly related to the received power at the destination (e.g., terrestrial or non-terrestrial network node). One way to increase the received power is to increase the input power and transmit at the highest available power, e.g., maximum transmit power. Two parameters contribute to determining the maximum transmit power: nominal maximum output power (defining the maximum output power of a device) and power back-off that may be an aggregate value of all the reductions to nominal maximum output power due to regulations and guidelines. For example, specific emission requirements, such as the Adjacent Channel Leakage Ratio (ACLR), may contribute to power back-off. One way to increase the received power is to temporarily relax the requirements contributing to the power back-off. For instance, in scenarios such as emergency calls, the ACLR requirement might be reduced from a stringent 30 dB ratio to 25 dB, allowing higher power transmission. Relaxing the requirements may involve configuring both the UE and network to support these higher power levels. Network signaling can instruct the UE to increase its power based on predefined conditions, such as emergency situations or specific frequency bands. The device firmware must be capable of dynamically adjusting power levels, with predefined maximum power limits that can be increased (compared to the default levels) temporarily under relaxed conditions. For example, in emergency call handling, the UE may automatically switch to a higher power mode when an emergency call is initiated. This can be triggered by the emergency call button or dialing an emergency number, with the device and network programmed to recognize these scenarios and adjust power levels accordingly. In some embodiments, the UE may detect a condition (e.g., an emergency condition). The condition may trigger identifying a configuration of relaxed requirements for signal transmission associated with the detected condition. The UE may apply the configuration and determine a first maximum transmit power based on the configuration, the maximum transmit power may be higher than the maximum transmit power associated with a default configuration. The UE may determine the transmit power for a signal transmission based on the maximum transmit power and generate and transmit a signal at a power level of the determined transmit power. The UE's uplink transmission may be to a terrestrial or a non-terrestrial network node. In some embodiments, the network may configure the UE with several configurations and activate a subset (non, some, or all of the configurations). In some instances, UE may autonomously determine an emergency condition, determine a configuration for relaxed requirements associated with the condition, and apply it. In some instances, the network may configure the association between the emergency conditions and configurations for relaxed requirements. The network may also enable or disable UE with relaxed requirements operations and may activate or deactivate the configurations for relaxed requirements at the UE. The following detailed description refers to the accompanying drawings. The same reference numbers may be used in different drawings to identify the same or similar elements. In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular structures, architectures, interfaces, and techniques to provide a thorough understanding of the various aspects of various embodiments. However, it will be apparent to those skilled in the art having the benefit of the present di