JP-7855135-B2 - Waveform management

JP7855135B2JP 7855135 B2JP7855135 B2JP 7855135B2JP-7855135-B2

Inventors

エサタパニティーロラ
カリユハニホーリ
カシオバルボザリベイロ
マルコマーソ
アレッシオマルコーネ
ニャット－クアンニャン
ユクヨンス

Assignees

ノキアテクノロジーズオサケユイチア

Dates

Publication Date: 20260507
Application Date: 20230315
Priority Date: 20220715

Claims (16)

An apparatus comprising at least one processing core and at least one memory containing computer program code, wherein the at least one memory and the computer program code are provided to the apparatus by the at least one processing core, Selectively transmitting information in the direction of a physical uplink shared channel using either a first waveform or a second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform. To provide first and second power headroom information to a network node controlling the cell to which the device is connected, wherein the first power headroom information discloses the amount of power between the maximum allowable transmit power or the maximum achievable transmit power and the first transmit power currently used by the device to transmit on the physical uplink shared channel using the first waveform, and the second power headroom information discloses the amount of power between the maximum allowable transmit power or the maximum achievable power using the second waveform and the second transmit power that the device would use to transmit on the physical uplink shared channel if the device were using the second waveform. The selection involves either continuing to use the first waveform on the physical uplink shared channel or switching to using the second waveform on the physical uplink shared channel , wherein the device is configured to perform the selection at least partially based on the first and second power headroom information without receiving an explicit command from the base station to select a particular waveform . A device configured to perform a certain action.
The apparatus according to claim 1, configured to provide the first and second power headroom information separately in two different power headroom reports.
The apparatus according to claim 1, configured to provide the first and second power headroom information in a single power headroom report.
The apparatus according to any one of claims 1 to 3, wherein the apparatus is configured to perform the selection at least in part based on a command received from the base station in response to the provision of the first and second power headroom information.
The apparatus according to any one of claims 1 to 3, wherein the apparatus is configured to provide the base station with the first and second power headroom information in response to the fulfillment of a trigger condition.
The trigger condition is, The set time has elapsed since the last provision of the first and second power headroom information. The path loss between the device and the base station has changed by more than a first threshold change amount. The device has changed the maximum power reduction value of the device, or The difference in transmission power between the first and second waveforms, The difference in power headroom between the first and second waveforms , or The difference between the first and second waveforms, the set maximum transmit power , If any of the following changes beyond the second threshold change amount , The apparatus according to claim 5 , comprising one or more of the following conditions.
The apparatus according to any one of claims 1 to 3 , wherein the maximum allowable transmit power is the nominal maximum allowable transmit power of the apparatus in any setting, or the maximum allowable transmit power of the apparatus based on the user equipment power class of the apparatus.
The apparatus according to any one of claims 1 to 3 , wherein the maximum achievable transmit power is the maximum achievable transmit power of the apparatus in the settings used when the first and second power headroom information is provided to the base station.
The apparatus according to any one of claims 1 to 3, wherein the apparatus is configured to provide the amount of energy between the maximum allowable transmit power or the maximum achievable power using the second waveform and the second transmit power that the apparatus would use to transmit on the physical uplink shared channel when the apparatus uses the second waveform, expressed relative to the amount of energy between the maximum allowable transmit power or achievable transmit power and the first transmit power.
The apparatus according to any one of claims 1 to 3, wherein the maximum allowable transmit power, the first transmit power, and the second transmit power are determined relative to a set reference transmit, which may differ from the transmit on the physical uplink shared channel, and the setting of the reference transmit includes at least one of a modulation scheme and the frequency position of a resource block.
An apparatus comprising at least one processing core and at least one memory containing computer program code, wherein the at least one memory and the computer program code are provided to the apparatus by the at least one processing core, Selectively receiving information regarding the physical uplink channel direction using a first waveform or a second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform. Receiving first and second power headroom information from user equipment (UE) connected to a cell controlled by the device, wherein the first power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable transmit power and the first transmit power currently used by the UE to transmit on the physical uplink channel using the first waveform, and the second power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable power using the second waveform and the second transmit power that the UE would use to transmit on the physical uplink channel if the UE were using the second waveform. The selection involves either continuing to use the first waveform on the physical uplink channel or switching to using the second waveform on the physical uplink channel, wherein the device is configured to perform the selection at least partially based on the first and second power headroom information without receiving an explicit command from the base station to select a particular waveform. A device configured to perform a certain action.
The apparatus according to any one of claims 1 to 3, wherein the first waveform is cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) and the second waveform is discrete Fourier transform spreading orthogonal frequency division multiplexing (DFT-s-OFDM).
The device selectively transmits information in the direction of a physical uplink shared channel using either a first waveform or a second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform. To provide first and second power headroom information to a network node controlling the cell to which the device is connected, wherein the first power headroom information discloses the amount of energy between the maximum allowable transmit power or achievable transmit power and the first transmit power currently used by the device to transmit on the physical uplink shared channel using the first waveform, and the second power headroom information discloses the amount of energy between the maximum allowable transmit power or the maximum achievable power using the second waveform and the second transmit power that the device would use to transmit on the physical uplink shared channel if the device were using the second waveform. The selection involves either continuing to use the first waveform on the physical uplink shared channel or switching to using the second waveform on the physical uplink shared channel , wherein the device is configured to perform the selection at least partially based on the first and second power headroom information without receiving an explicit command from the base station to select a particular waveform . Methods that include...
The device selectively receives information regarding the physical uplink channel direction using either a first or second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform. Receiving first and second power headroom information from user equipment (UE) connected to a cell controlled by the device, wherein the first power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable transmit power and the first transmit power currently used by the UE to transmit on the physical uplink channel using the first waveform, and the second power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable power using the second waveform and the second transmit power that the UE would use to transmit on the physical uplink channel if the UE were using the second waveform. The selection involves either continuing to use the first waveform on the physical uplink channel or switching to using the second waveform on the physical uplink channel , wherein the device is configured to perform the selection at least partially based on the first and second power headroom information without receiving an explicit command from the base station to select a particular waveform. Methods that include...
When executed by at least one processor, the device has at least, Selectively transmitting information in the direction of a physical uplink shared channel using either a first waveform or a second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform. To provide a network node controlling the cell to which the device is connected with first and second power headroom information, wherein the first power headroom information discloses the amount of energy between the maximum allowable transmit power or the maximum achievable transmit power and the first transmit power currently used by the device to transmit on the physical uplink shared channel using the first waveform, and the second power headroom information discloses the amount of energy between the maximum allowable transmit power or the maximum achievable power using the second waveform and the second transmit power that the device would use to transmit on the physical uplink shared channel if the device were using the second waveform. The selection involves either continuing to use the first waveform on the physical uplink shared channel or switching to using the second waveform on the physical uplink shared channel , wherein the device is configured to perform the selection at least partially based on the first and second power headroom information without receiving an explicit command from the base station to select a particular waveform . A non-transient computer-readable medium that stores a set of computer-readable instructions that execute a certain command.
When executed by at least one processor, the device has at least, Selectively receiving information regarding the physical uplink channel direction using a first waveform or a second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform. Receiving first and second power headroom information from user equipment (UE) connected to a cell controlled by the device, wherein the first power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable transmit power and the first transmit power currently used by the UE to transmit on the physical uplink channel using the first waveform, and the second power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable power using the second waveform and the second transmit power that the UE would use to transmit on the physical uplink channel if the UE were using the second waveform. The selection involves either continuing to use the first waveform on the physical uplink channel or switching to using the second waveform on the physical uplink channel, wherein the device is configured to perform the selection at least partially based on the first and second power headroom information without receiving an explicit command from the base station to select a particular waveform. A non-transient computer-readable medium that stores a set of computer-readable instructions for executing a program.

Description

This disclosure relates to the management of wireless communication processes. In some wireless communication systems, multiple signal waveforms can be used in wireless communication between user equipment (UE) and access nodes, such as base stations. The signal waveform corresponds to the shape of the signal graph as a function of time. Examples of waveforms include sine waves, square waves, and triangular waves, but in communication systems, the waveform becomes more complex depending on the modulation used. Modulation used in wireless communication systems can be high-order, and generally, the modulation scheme correlates with the characteristic waveform of that modulation scheme. In some embodiments, the subject matter of the independent claims is provided. Some embodiments are defined in the dependent claims. The scope of protection required for various embodiments of the invention is defined by the independent claims. Embodiments not covered by the independent claims, exemplary embodiments, and features described herein are to be interpreted as useful examples for understanding various embodiments of the invention. According to a first aspect of the present disclosure, an apparatus comprising at least one processing core and at least one memory containing computer program code, wherein the at least one memory and the computer program code transmit information to the apparatus in the direction of a physical uplink shared channel using at least, selectively, a first waveform or a second waveform, wherein the second waveform has a lower peak-to-average power ratio than the first waveform, and provides first and second power headroom information to a network node controlling the cell to which the apparatus is connected, wherein the first power headroom information is up to the maximum allowable transmit power. Disclosed is a device configured to provide, disclose, the amount of energy between the maximum achievable transmit power and the first transmit power currently used by the device to transmit on a physical uplink shared channel using the first waveform, and disclose, the amount of energy between the maximum allowable transmit power or the maximum achievable power using the second waveform and the second transmit power that the device would use to transmit on the physical uplink shared channel if the device were to use the second waveform, and to allow the device to choose whether to continue using the first waveform on the physical uplink shared channel or switch to using the second waveform on the physical uplink shared channel. According to a second aspect of the present disclosure, an apparatus comprising at least one processing core and at least one memory containing computer program code, wherein the at least one memory and the computer program code receive, by at least one processing core, information relating to the physical uplink channel direction using at least, selectively, a first waveform or a second waveform, the second waveform having a lower peak-to-average power ratio than the first waveform, and receives first and second power headroom information from user equipment (UE) connected to a cell controlled by the apparatus, the first power headroom information being the maximum allowable A device is disclosed that discloses the amount of energy between the allowable transmit power or maximum achievable transmit power and the first transmit power currently used by the UE to transmit on the physical uplink channel using the first waveform, and second power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable power using the second waveform and the second transmit power that the UE would use to transmit on the physical uplink channel if the UE were to use the second waveform; and is configured to receive and select whether to continue using the first waveform on the physical uplink channel or switch to using the second waveform on the physical uplink channel. A third aspect of this disclosure provides a method comprising: providing information to a physical uplink shared channel using a first waveform or a second waveform, wherein the device selectively transmits information in the direction of a physical uplink shared channel, the second waveform having a lower peak-to-average power ratio than the first waveform; and providing first and second power headroom information to a network node controlling the cell to which the device is connected, wherein the first power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable transmit power and the first transmit power currently used by the device to transmit on the physical uplink shared channel using the first waveform; and the second power headroom information discloses the amount of energy between the maximum allowable transmit power or maximum achievable power using the second waveform and the second transmit po