CN113747559B

CN113747559B - Method and device for reporting power headroom, terminal and readable storage medium

Info

Publication number: CN113747559B
Application number: CN202010471084.2A
Authority: CN
Inventors: 李娜; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2023-04-25
Anticipated expiration: 2040-05-28
Also published as: WO2021239041A1; CN113747559A

Abstract

The application discloses a method and a device for reporting power headroom, a terminal and a readable storage medium, and belongs to the technical field of communication. The reporting method of the power headroom comprises the following steps: when a plurality of uplink data channels exist on a first CC and the uplink data channels overlap in the time domain, reporting the power headroom by adopting a preset rule for the first CC. Therefore, the power margin reporting mode can be clarified, so that the network side equipment can calculate the correct power loss on the first CC by using the power margin reported by the terminal, and the network side equipment can be more effectively helped to select the number of scheduled time-frequency blocks, select a modulation format and the like.

Description

Method and device for reporting power headroom, terminal and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method and device for reporting power headroom, a terminal and a readable storage medium.

Background

In the prior art, only one uplink data Channel (CG) of a Configured Grant (CC) can be Configured at most on one carrier (Component Carrier, CC). If the terminal triggers a Power Headroom report (Power Headroom Report, PHR) and satisfies a transmission condition, the terminal may transmit a real Power Headroom (PH) value or a virtual PH value of the CC.

With the development of communication technology, it is possible to support uplink data channels configuring a plurality of CGs on one CC, and the configuration of the plurality of CGs is completely independent. In this case, for the CC, the terminal may calculate the actual PH value or the virtual PH value using the configuration of each CG. But there is no clear how to report the power headroom for this CC.

Disclosure of Invention

An objective of the embodiments of the present application is to provide a method, an apparatus, a terminal, and a readable storage medium for reporting a power headroom, so as to solve the problem of how to report the power headroom for a CC authorized with multiple uplink data channels.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, a method for reporting a power headroom is provided, and the method is applied to a terminal, and includes:

when a plurality of uplink data channels exist on a first CC and the uplink data channels overlap in the time domain, reporting the power headroom by adopting a preset rule for the first CC.

In a second aspect, a power headroom reporting device is provided, and is applied to a terminal, and the reporting device includes:

and the reporting module is used for reporting the power margin by adopting a preset rule according to the first CC when a plurality of uplink data channels exist on the first CC and the uplink data channels are overlapped in the time domain.

In a third aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.

In a fourth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor perform the steps of the method according to the first aspect.

In a fifth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions implementing the steps of the method according to the first aspect.

In the embodiment of the present application, when there are multiple uplink data channels on the first CC and the multiple uplink data channels overlap in the time domain, the terminal may use a preset rule to report the power headroom for the first CC, so as to define a power headroom report mode, so that the network side device may calculate the correct power loss on the first CC by using the power headroom reported by the terminal, to more effectively help the network side device select the number of scheduled time-frequency blocks, select the modulation format, and so on.

Drawings

Fig. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application;

fig. 2 is a flowchart of a method for reporting a power headroom according to an embodiment of the present application;

FIG. 3 is a timing diagram related to application scenario 1 of the present application;

fig. 4A, 4B, 4C, and 4D are timing diagrams related to application scenario 2 of the present application;

fig. 5 is a schematic structural diagram of a power headroom reporting device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the "first" and "second" distinguished objects generally are of the type and do not limit the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple Access (Time Division Multiple Access, TDMA), frequency division multiple Access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), single-Carrier frequency division multiple Access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. However, the following description describes a New air interface (NR) system for purposes of example, and NR terminology is used in much of the following description, although the techniques are also applicable to applications other than NR system applications, such as generation 6 (6 ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: a bracelet, earphone, glasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

To facilitate an understanding of the embodiments of the present application, the following is first described.

1. The uplink transmission mode is classified into Dynamic Grant (DG) based and Configured Grant (CG) based (also referred to as unlicensed scheduling). The uplink transmission of the dynamic scheduling DG is characterized in that transmission parameters such as the number of transmission layers, modulation Coding Scheme (MCS) and the like are all authorized by the physical layer signaling uplink.

The uplink transmission of the configuration grant CG is further divided into two sub-types, type1 (Type 1) and Type2 (Type 2). The uplink transmission of Type1 CG, such as an uplink physical shared channel (Physical Uplink Shared Channel, PUSCH) transmission, has all its transmission parameters configured semi-statically by higher layers, with its transmission resources occurring periodically. And the uplink transmission of the Type2 CG is characterized in that the transmission parameters are jointly configured and indicated by a high layer and a physical layer. The higher layer mainly semi-statically configures the period of the transmission resource, and the physical layer mainly indicates transmission parameters such as MCS, specific time-frequency resource, transmission layer number, and the like.

2. Power Headroom Report (PHR): the Power Headroom (PH), which is the difference between the maximum allowed transmission power of the terminal (UE) and the currently estimated uplink transmission (e.g., PUSCH transmission) power. It indicates how much transmission power can be used by the UE in addition to the transmission power used by the current PUSCH transmission. The network side equipment selects the number of the scheduled time-frequency blocks, the modulation format and the like according to the power allowance reported by the UE. The Power Headroom (PH) is divided into a real PH and a virtual PH, wherein the real PH is calculated according to transmission parameters such as physical resources, power compensation factors and the like actually distributed by the network side equipment; and the virtual value is a power headroom calculated from a transmission parameter predefined in advance. Specifically, if the UE triggers PHR reporting and satisfies the transmission condition, the UE needs to transmit the PHR in a format of a media access Control (Media Access Control, MAC) Element (CE). Whether a real PH or a virtual PH is transmitted on each CC (also referred to as a cell) depends on several factors (hereinafter referred to as PUSCH with PHR, where the CC on which the PUSCH with PHR resides is PHR CC):

1) Whether the PUSCH transmission exists on other activated (activated) CCs or not, and whether the time domain resources occupied by the PUSCH with PHR transmitted on the PHR CCs and the PUSCH with PHR transmitted on the PHR CCs are overlapped or not; if there is no overlap, the pH for the activated CC is virtual pH;

2) Whether the PH is CG or DG; if CG specific, then whether virtual or real PH is transmitted depends on UE implementation;

3) The time (T-calculation) for calculating the pH is determined (started). If relevant scheduling information is obtained between the PHR trigger time T-trigger and the T-calculation, reporting real PH; otherwise, report virtual PH.

If PHR is transmitted on DG PUSCH, the T-calculation is the time when UL grant is received, i.e., the reception time point of UL grant.

II if PHR is transmitted on CG PUSCH, the T-calculation is the starting time of sending CG PUSCH (such as the time of starting symbol) minus the preset time (Troc, 2), the value of the preset time period depends on the capability of the terminal to process data. I.e. the T-calculated is located before the start time of transmitting CG PUSCH and is spaced from the start time by a preset period of time.

The format of the phr MAC CE, wherein the V field indicates whether the PH is based on the actual transmission (real PH) or the reference format (virtual PH).

In order to determine the power headroom reporting mode, the present application also solves the following problems:

in the case that only one CG can be configured at most for transmission on one CC, the V field on the PHR MAC CE may indicate whether the PH value of the CC is Real or Real, so the network side device can know the decision of the terminal, that is, whether the PH value of the CG is Real or Real, and therefore the network side device can correctly estimate the path loss on the CC. In the case where a configuration of a plurality of CGs is supported on one CC, each CG has a unique index index (CG index), and the configuration of the plurality of CGs allows for temporal overlap; the configuration of the multiple CGs is completely independent, i.e. different CGs may have different transmission parameters, transmission power, etc. But at most only one CG PUSCH transmission can be transmitted at a time. Which CG PUSCH to send may depend on the implementation of the terminal, and may also depend on pre-provisions such as: only the CG of the highest priority is transmitted, and if the priorities of the plurality of CGs are the same, the CG of the smallest or largest index is transmitted, and so on. There is uncertainty as to which CG will transmit. In addition, the terminal may be supported to discard the low-priority data and transmit the high-priority data later, but depending on the internal processing speed of the terminal, the terminal may not cancel the already transmitted low-priority data, and thus may not transmit the high-priority data. Therefore, for the above case, it is unclear for the network side device whether the corresponding reported real PH is for DG or CG; if there are multiple CG configurations, it is not clear which CG the network device is for, so that the correct path loss of the current CC cannot be estimated.

For example, if a plurality of uplink data channels configuring the grant CG are configured on the CC #2 and these data channels overlap in time domain, or if the DG priority of dynamic scheduling is higher than CG, so that the terminal gives up transmitting CG and transmits DG, or if the CG priority is higher than the DG of dynamic scheduling, so that the terminal gives up transmitting DG and transmits CG, the terminal does not know which CG should be used, or whether PH is calculated with DG with high priority or CG configuration with high priority, and the terminal does not know that the calculation of PH should be a true value or a virtual value. The uncertainty of the terminal PH calculation can cause that the network side equipment cannot calculate the power loss on the CC#2 by using the PH reported by the terminal, thereby affecting the subsequent data scheduling of the network side equipment and reducing the system performance.

The method for reporting the power headroom provided by the embodiment of the application is described in detail below through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 is a flowchart of a method for reporting a power headroom, which is provided in an embodiment of the present application, and is applied to a terminal, as shown in fig. 2, and the method includes the following steps:

step 201: when a plurality of uplink data channels exist on a first CC and the uplink data channels overlap in the time domain, reporting the power headroom by adopting a preset rule for the first CC.

Note that the uplink data channel may be selected as PUSCH. For the uplink data channel, the grant CG may be configured on the first CC, or the DG may be dynamically scheduled.

In one embodiment, the PHR of the terminal triggers and the PHR is reported on an uplink data channel (e.g., PUSCH of CG or DG) of a second CC (different from the first CC), where if the uplink data channel of the second CC overlaps with the uplink data channel (e.g., multiple uplink data channels) of the first CC in the time domain, the power headroom value for the first CC may be reported on the uplink data channel of the second CC.

In another embodiment, the power headroom value for a first CC is reported on an uplink data channel (such as CG or DG) of the first CC based on terminal implementation.

The above overlapping in the time domain may be understood as corresponding overlapping (overlapping) or collision of time domain resources. The preset rules may be pre-agreed or protocol defined.

In this embodiment of the present application, whether the plurality of uplink data channels authorized on the first CC are uplink data channels of a plurality of CGs or uplink data channels including the DG and at least one CG may be divided into the following two application scenarios:

application scenario 1:

in application scenario 1, as shown in fig. 3, uplink data channels of multiple CGs are configured on the activated first CC, and these uplink data channels overlap in the time domain. Note that although 3 CGs, namely, cg#1, cg#2, and cg#3 are shown in fig. 3, the present embodiment is not limited thereto.

As an alternative embodiment, as shown in fig. 3, in the application scenario 1, if the PHR of the terminal is triggered, the PHR is reported on an uplink data channel (such as DG PUSCH or CG PUSCH) of the activated second CC, and the uplink data channel of the second CC overlaps with uplink data channels of multiple CGs of the first CC in the time domain, then the power headroom value for the first CC may be reported on the uplink data channel of the second CC. Or, based on the terminal implementation, reporting the power residual value for the first CC on an uplink data channel of the first CC.

In this application scenario 1, a specific power headroom reporting method for the first CC may be as follows:

Method 1.1:

for the first CC, the terminal always reports the virtual power headroom value. I.e. for the first CC, no matter whether there is a CG transmission or not, no matter which CG is transmitted, the terminal always reports the virtual PH.

In this way, since the calculation of the virtual PH is calculated according to the predefined good transmission parameters, the network side device, such as the base station, can obtain the correct path loss on the first CC according to the virtual PH, so as to ensure the subsequent data scheduling.

Method 1.2:

1) For a first CC, under the condition that the terminal has a first transmission on an uplink data channel of a first CG of the plurality of CGs and the first time point is located between the second time point and the third time point, the terminal calculates a real power headroom value by using the first CG (i.e. calculates a real power headroom value by using the configuration of the first CG), and reports the real power headroom value.

Or for the first CC, if the terminal has a first transmission on an uplink data channel of the first CG of the plurality of CGs, and the first time point is not located between the second time point and the third time point, the terminal reports the virtual power headroom value.

The first time point is located before a start time point (for example, a time at which a start symbol is located) of the first transmission, and is separated from the start time point by a preset time length. The value of the preset time length depends on the capability of the terminal to process data. The second time point is the trigger time point T-trigger of PHR. The third time point is the time point T-calculate at which the calculation of the power headroom value in PHR starts.

2) And for the first CC, the terminal reports the virtual power residual value under the condition that the terminal does not transmit on the uplink data channels of the plurality of CG.

Thus, with the aid of the method 1.2, if the actual power margin value is reported, the network side equipment can calculate the correct path loss and can also know the actual power margin of the terminal.

Method 1.3:

for a first CC, a terminal calculates a real power residual value by using a second CG in the plurality of CG and reports the real power residual value. The second CG satisfies any one of the following conditions among the plurality of CGs: minimum index, maximum index, highest priority, lowest priority. That is, for the first CC, no matter whether there is a CG transmission or not, no matter which CG is transmitted, the terminal always calculates a real power headroom value by using the configuration of the second CG and reports the real power headroom value.

In one embodiment, if the priorities of the CG are all 0 or 1, that is, the same, the terminal may calculate and report the actual power headroom value by using the CG configuration with the smallest index or the largest index.

Thus, by means of the method 1.3, the network device can also correct path loss on the first CC according to the real PH value.

Method 1.4:

for the first CC, the terminal reports a real power headroom value or a virtual power headroom value based on the terminal implementation. The actual power headroom value may be calculated using the configuration of any of the plurality of CGs. I.e. whether the terminal reports the real PH or the virtual PH for the first CC, or which CG is used to calculate the real PH, depends on the terminal implementation.

Thus, by means of the method 1.3, the reporting of the power residual value can be simply realized, and the influence on the existing reporting mode is small.

Application scenario 2:

in the application scenario 2, as shown in fig. 4A to 4D, at least one CG and DG authorized uplink data channels are configured on the activated first CC, and these uplink data channels overlap in the time domain. It should be noted that although 1 CG and 1 DG are shown in fig. 4A to 4D, the present embodiment is not limited thereto. And, for example, in fig. 4A and 4B DG transmission is cancelled because of higher CG priority. CG transmissions are cancelled in fig. 4C and 4D due to higher DG priority. In other cases, it may be that the terminal does not transmit high priority data (such as CG transmission or DG transmission) because it is not time to cancel already transmitted low priority data (such as CG transmission or DG transmission).

As an alternative embodiment, as shown in fig. 4A to fig. 4D, in the application scenario 2, if the PHR of the terminal is triggered, the PHR is reported on an uplink data channel (such as DG PUSCH or CG PUSCH) of the activated second CC, and the uplink data channel of the second CC overlaps with uplink data channels of multiple CGs of the first CC in the time domain, then the power headroom value for the first CC may be reported on the uplink data channel of the second CC. Or, based on the terminal implementation, reporting the power residual value for the first CC on an uplink data channel of the first CC.

In this application scenario 2, a specific power headroom reporting method for the first CC may be as follows:

method 2.1:

for the first CC, the terminal always reports the virtual power headroom value. That is, for the first CC, when there is a resource conflict between CG transmission and DG transmission, no matter whether the terminal finally preferentially transmits CG or DG, the terminal always reports virtual PH.

Method 2.2:

case one: the terminal transmits CG, i.e. the terminal has a transmission on the CG's uplink data channel, as shown in fig. 4A and 4B.

1) For the first CC, when the terminal has a third transmission on an uplink data channel of a third CG of the at least one CG, and the fourth time point is located between the second time point and the third time point, the terminal calculates a real power headroom value by using the third CG (i.e., calculates a real power headroom value by using the configuration of the third CG), and reports the real power headroom value.

2) For the first CC, in the case that the terminal has a third transmission on an uplink data channel of a third CG in the at least one CG and the fourth time point is not located between the second time point and the third time point, when the transmission of the DG is cancelled and the receiving time point of the uplink grant of the DG from which the transmission is cancelled is located between the second time point and the third time point (as shown in fig. 4A), the terminal calculates a real power headroom value by using the DG and reports the real power headroom value; or when the receiving time point of the uplink grant of the DG which is cancelled from transmission is not located between the second time point and the third time point (as shown in fig. 4B), the terminal reports the virtual power headroom value.

The fourth time point is located before the start time point (such as the time of the start symbol) of the third transmission (the transmission of the third CG), and is separated from the start time point by a preset time length. The value of the preset time length depends on the capability of the terminal to process data. The second time point is the trigger time point T-trigger of PHR. The third time point is the time point T-calculate at which the calculation of the power headroom value in PHR starts.

And a second case: the terminal transmits a DG, i.e. the terminal has a transmission on the DG's uplink data channel, as shown in fig. 4C and 4D.

3) For the first CC, when the terminal has a fourth transmission on the DG uplink data channel, and the DG uplink grant receiving time point (for example, the receiving time point of the DG physical downlink control channel (Physical Downlink Control Channel, PDCCH) is scheduled to be located between the second time point and the third time point (as shown in fig. 4C), the terminal calculates a real power headroom value by using the DG (i.e., calculates a real power headroom value by using the DG configuration), and reports the real power headroom value.

4) For the first CC, in the case that the terminal has a fourth transmission on the uplink data channel of the DG, and the receiving time point of the uplink grant of the DG is not located between the second time point and the third time point (as shown in fig. 4D), when the fifth time point is located between the second time point and the third time point, the terminal calculates a real power headroom value by using the fourth CG in the at least one CG, and reports the real power headroom value. Or when the fifth time point is not located between the second time point and the third time point, the terminal reports the virtual power residual value.

Wherein the fourth CG is a CG to which transmission is canceled. The fifth time point is located before and spaced apart from a start time point (e.g., a time at which a start symbol is located) of the transmission of the fourth CG by a preset time length. The value of the preset time length depends on the capability of the terminal to process data. The second time point is the trigger time point T-trigger of PHR. The third time point is the time point T-calculate at which the calculation of the power headroom value in PHR starts.

Method 2.3:

For the first CC, when the terminal has a fifth transmission on an uplink data channel of a fifth CG of the at least one CG, and the sixth time point is located between the second time point and the third time point, the terminal calculates a real power residual value by using the fifth CG, and reports the real power residual value; or when the sixth time point is not located between the second time point and the third time point, the terminal reports the virtual power residual value.

For the first CC, when the terminal has a transmission on the DG uplink data channel and the DG uplink grant reception time point is located between the second time point and the third time point (as shown in fig. 4C), the terminal calculates a real power headroom value by using the DG, and reports the real power headroom value; or when the receiving time point of the uplink grant of the DG is not located between the second time point and the third time point (as shown in fig. 4D), reporting a virtual power residual value by the terminal.

The sixth time point is located before the start time point (such as the time of the start symbol) of the fifth transmission, and is separated from the start time point by a preset time length. The value of the preset time length depends on the capability of the terminal to process data. The second time point is the trigger time point T-trigger of PHR. The third time point is the time point T-calculate at which the calculation of the power headroom value in PHR starts.

Method 2.4:

for the first CC, the terminal reports a real power headroom value or a virtual power headroom value based on the terminal implementation. The actual power headroom value may be calculated using the configuration of either the DG or at least one CG. I.e. for the first CC, when CG and DG have resource conflicts, the terminal reports real PH or virtual PH, or whether CG or DG is used, depending on the terminal implementation.

It should be noted that, in the method for reporting power headroom provided in the embodiment of the present application, the execution body may be a device for reporting power headroom, or a control module for executing the method for reporting power headroom in the device for reporting power headroom. In the embodiment of the present application, a reporting method performed by a reporting device for power headroom is taken as an example, and the reporting device for power headroom provided in the embodiment of the present application is described.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a reporting device for power headroom provided in an embodiment of the present application, where the reporting device is applied to a terminal, as shown in fig. 5, and the reporting device 50 includes:

and the reporting module 51 is configured to, when there are multiple uplink data channels on the first CC and the multiple uplink data channels overlap in time domain, perform power headroom reporting by using a preset rule for the first CC, and perform power headroom reporting by using a preset rule for the first CC.

Optionally, the plurality of uplink data channels are uplink data channels of a plurality of CGs; the reporting module 51 is specifically configured to:

when the terminal has a first transmission on an uplink data channel of a first CG in the plurality of CG and the first time point is between the second time point and the third time point, calculating a real power residual value by using the first CG and reporting the real power residual value; or, reporting a virtual power residual value when the terminal has a first transmission on an uplink data channel of a first CG of the plurality of CGs and the first time point is not located between the second time point and the third time point; the first time point is located before the starting time point of the first transmission and is separated from the starting time point by a preset time length; the second time point is a trigger time point of the PHR, and the third time point is a time point when calculating a power residual value in the PHR is started;

Or alternatively, the process may be performed,

and reporting a virtual power residual value under the condition that the terminal does not transmit on the uplink data channels of the plurality of the CG.

Optionally, the plurality of uplink data channels are uplink data channels of a plurality of CGs; the reporting module 51 is specifically configured to any one of the following:

reporting virtual power residual value all the time;

calculating a real power residual value by using a second CG in the plurality of CG, and reporting the real power residual value; wherein the second CG satisfies any one of the following conditions among the plurality of CGs: minimum index, maximum index, highest priority, lowest priority;

reporting a real power residual value or a virtual power residual value based on the terminal implementation; wherein the real power margin value is calculated by using any one of the plurality of CGs.

Optionally, the plurality of uplink data channels includes an uplink data channel of DG and an uplink data channel of at least one CG; the reporting module 51 is specifically configured to:

when the terminal has third transmission on an uplink data channel of a third CG in the at least one CG and a fourth time point is positioned between a second time point and the third time point, calculating a real power residual value by using the third CG and reporting the real power residual value;

Or alternatively, the process may be performed,

when the terminal has third transmission on an uplink data channel of a third CG in the at least one CG and the fourth time point is not located between the second time point and the third time point, and when the transmission of the DG is cancelled and the receiving time point of the uplink grant of the DG from which the transmission is cancelled is located between the second time point and the third time point, calculating a real power headroom value by using the DG, and reporting the real power headroom value; or when the receiving time point of the uplink grant of the DG which is cancelled to be transmitted is not located between the second time point and the third time point, reporting a virtual power residual value;

the fourth time point is located before the starting time point of the third transmission and is separated from the starting time point by a preset time length; the second time point is a trigger time point of the PHR, and the third time point is a time point at which calculation of a power headroom value in the PHR is started.

when the terminal has fourth transmission on the uplink data channel of the DG and the uplink authorized receiving time point of the DG is located between the second time point and the third time point, calculating a real power residual value by using the DG and reporting the real power residual value;

Or alternatively, the process may be performed,

when the terminal has fourth transmission on the uplink data channel of the DG and the uplink grant receiving time point of the DG is not located between the second time point and the third time point, when the fifth time point is located between the second time point and the third time point, calculating a real power residual value by using a fourth CG in the at least one CG, and reporting the real power residual value; or when the fifth time point is not located between the second time point and the third time point, reporting a virtual power residual value;

wherein the fourth CG is a CG of which transmission is canceled, the fifth time point is located before a start time point of transmission of the fourth CG and is spaced from the start time point by a preset time length; the second time point is a trigger time point of the PHR, and the third time point is a time point at which calculation of a power headroom value in the PHR is started.

Optionally, the plurality of uplink data channels include an uplink data channel of DG and an uplink data channel of at least one CG, and the reporting module 51 is specifically configured to:

when the terminal has fifth transmission on an uplink data channel of a fifth CG in the at least one CG, when a sixth time point is positioned between a second time point and a third time point, calculating a real power residual value by using the fifth CG, and reporting the real power residual value; or when the sixth time point is not located between the second time point and the third time point, reporting a virtual power residual value;

Or alternatively, the process may be performed,

when the terminal transmits on the uplink data channel of the DG, when the uplink authorized receiving time point of the DG is located between the second time point and the third time point, calculating a real power residual value by using the DG, and reporting the real power residual value; or when the receiving time point of the uplink grant of the DG is not located between the second time point and the third time point, reporting a virtual power residual value;

wherein the sixth time point is located before the start time point of the fifth transmission and is spaced from the start time point by a preset time length; the second time point is a trigger time point of the PHR, and the third time point is a time point at which calculation of a power headroom value in the PHR is started.

Optionally, the plurality of uplink data channels includes an uplink data channel of DG and an uplink data channel of at least one CG; the reporting module 51 is specifically configured to any one of the following:

reporting virtual power residual value all the time;

reporting a real power residual value or a virtual power residual value based on the terminal implementation; wherein the true power headroom value is calculated using either the DG or the at least one CG.

It can be appreciated that the reporting device 50 provided in the embodiment of the present application can implement each process implemented by the method embodiment in fig. 2, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

The reporting device of the power headroom in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

The reporting device of the power headroom in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

Optionally, the embodiment of the present application further provides a terminal, including a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction implements each process of the embodiment of the method in fig. 1 when executed by the processor, and the process can achieve the same technical effects, and for avoiding repetition, a description is omitted herein.

Fig. 6 is a schematic hardware structure of a terminal implementing an embodiment of the present application.

The terminal 600 includes, but is not limited to: radio frequency unit 601, network module 602, audio output unit 603, input unit 604, sensor 605, display unit 606, user input unit 607, interface unit 608, memory 609, and processor 610.

Those skilled in the art will appreciate that the terminal 600 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 610 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 6 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be understood that in the embodiment of the present application, the input unit 604 may include a graphics processor (Graphics Processing Unit, GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes image data of still pictures or videos obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts of a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, the radio frequency unit 601 receives downlink data from the network side device and processes the downlink data with the processor 610; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 609 may be used to store software programs or instructions and various data. The memory 609 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 609 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 610 may include one or more processing units; alternatively, the processor 610 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 610.

The processor 610 is configured to, when there are multiple uplink data channels on a first CC and the multiple uplink data channels overlap in a time domain, report a power headroom by using a preset rule for the first CC.

It can be appreciated that, the terminal 600 provided in the embodiment of the present application can implement each process implemented by the method embodiment in fig. 2, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the processes of the embodiment of the method of fig. 2 are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a network side device program or instruction, so as to implement each process of the foregoing embodiment of the method of fig. 2, and achieve the same technical effect, so that repetition is avoided, and no further description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. The method for reporting the power headroom is applied to a terminal and is characterized by comprising the following steps:

when a plurality of uplink data channels exist on a first carrier CC and overlap in time domain, reporting power headroom by adopting a preset rule for the first CC;

the reporting of the power headroom by adopting a preset rule comprises any one of the following steps:

reporting a real power residual value or a virtual power residual value according to a starting time point of the transmission under the condition that the terminal transmits on the plurality of uplink data channels;

reporting a virtual power margin value under the condition that the terminal does not transmit on the plurality of uplink data channels;

and reporting a real power residual value or a virtual power residual value according to the scheduling conditions of the plurality of uplink data channels.

2. The method of claim 1, wherein the plurality of uplink data channels are a plurality of uplink data channels configuring an authorized CG; and reporting a real power residual value or a virtual power residual value according to a starting time point of the transmission under the condition that the terminal transmits on the plurality of uplink data channels, wherein the method comprises the following steps of:

When the terminal has a first transmission on an uplink data channel of a first CG in the plurality of CG and the first time point is between the second time point and the third time point, calculating a real power residual value by using the first CG and reporting the real power residual value;

or alternatively, the process may be performed,

reporting a virtual power residual value under the condition that the terminal has first transmission on an uplink data channel of a first CG in the plurality of CG and the first time point is not located between the second time point and the third time point;

the first time point is located before the starting time point of the first transmission and is separated from the starting time point by a preset time length; the second time point is a trigger time point of reporting the PHR by the power headroom, and the third time point is a time point of starting to calculate the value of the power headroom in the PHR.

3. The method according to claim 1, wherein reporting the real power headroom value or the virtual power headroom value according to the scheduling situation of the plurality of uplink data channels comprises any one of:

when the uplink data channels are uplink data channels of a plurality of CG, reporting virtual power residual values all the time;

When the plurality of uplink data channels are uplink data channels of a plurality of Cgs, calculating a real power residual value by utilizing a second CG in the plurality of Cgs, and reporting the real power residual value; wherein the second CG satisfies any one of the following conditions among the plurality of CGs: minimum index, maximum index, highest priority, lowest priority;

when the uplink data channels are uplink data channels of a plurality of CG, reporting a real power residual value or a virtual power residual value based on terminal implementation; wherein the real power margin value is calculated by using any one of the plurality of CGs.

4. The method of claim 1, wherein the plurality of uplink data channels comprises an uplink data channel for dynamically scheduling DG and an uplink data channel for at least one CG; and reporting a real power residual value or a virtual power residual value according to a starting time point of the transmission under the condition that the terminal transmits on the plurality of uplink data channels, wherein the method comprises the following steps of:

Or alternatively, the process may be performed,

5. The method of claim 1, wherein the plurality of uplink data channels comprises an uplink data channel of a DG and an uplink data channel of at least one CG; and reporting a real power residual value or a virtual power residual value according to a starting time point of the transmission under the condition that the terminal transmits on the plurality of uplink data channels, wherein the method comprises the following steps of:

or alternatively, the process may be performed,

6. The method of claim 1, wherein the plurality of uplink data channels includes an uplink data channel of DG and an uplink data channel of at least one CG, and wherein reporting the real power headroom value or the virtual power headroom value according to a start time point of the transmission in a case that the terminal has a transmission on the plurality of uplink data channels comprises:

or alternatively, the process may be performed,

7. The method according to claim 1, wherein reporting the real power headroom value or the virtual power headroom value according to the scheduling situation of the plurality of uplink data channels comprises any one of:

when the plurality of uplink data channels comprise uplink data channels of DG and uplink data channels of at least one CG, reporting virtual power residual values all the time;

when the plurality of uplink data channels comprise uplink data channels of DG and uplink data channels of at least one CG, reporting a real power residual value or a virtual power residual value based on terminal implementation; wherein the true power headroom value is calculated using either the DG or the at least one CG.

8. A reporting device of power headroom, applied to a terminal, comprising:

the reporting module is used for reporting power headroom by adopting a preset rule according to a first CC when a plurality of uplink data channels are arranged on the first CC and overlap in a time domain;

The reporting module is specifically configured to execute any one of the following:

9. The apparatus of claim 8, wherein the plurality of uplink data channels are CG of a plurality of uplink data channels; the reporting module is specifically configured to:

or alternatively, the process may be performed,

The first time point is located before the starting time point of the first transmission and is separated from the starting time point by a preset time length; the second time point is a trigger time point of the PHR, and the third time point is a time point at which calculation of a power headroom value in the PHR is started.

10. The apparatus of claim 8, wherein the reporting module is specifically configured to:

11. The apparatus of claim 8, wherein the plurality of uplink data channels comprises an uplink data channel of a DG and an uplink data channel of at least one CG; the reporting module is specifically configured to:

or alternatively, the process may be performed,

12. The apparatus of claim 8, wherein the plurality of uplink data channels comprises an uplink data channel of a DG and an uplink data channel of at least one CG; the reporting module is specifically configured to:

or alternatively, the process may be performed,

13. The apparatus of claim 8, wherein the plurality of uplink data channels comprises an uplink data channel of a DG and an uplink data channel of at least one CG, and wherein the reporting module is specifically configured to:

or alternatively, the process may be performed,

14. The apparatus of claim 8, wherein the reporting module is specifically configured to:

15. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the method for reporting a power headroom according to any of claims 1 to 7.

16. A readable storage medium, wherein a program or instructions are stored on the readable storage medium, which when executed by a processor, implement the steps of the power headroom reporting method of any of claims 1 to 7.