Power Headroom Report PHR Reporting Method, Apparatus, and Terminal

Abstract

The present application discloses a PHR reporting method, an apparatus, and a terminal, the method including triggering a PHR when a first condition is met, the first condition including any one of condition 1: a path loss of at least one serving cell of any one MAC entity meets a second condition and the serving cell is in an activated state; condition 2: a first PHR periodic timer has timed out; condition 3: a cell group has been recovered; condition 4: a special cell SpCell including a special cell primary cell PCell or a primary secondary cell PSCell has been activated; condition 5: a second PHR periodic timer has timed out; condition 6: a serving cell has switched from a dormant BWP to a non-dormant BWP and the PHR prohibition timer has timed out; and condition 7: the PHR prohibition timer has timed out and a first parameter is a first value.

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of Chinese Patent Application No. 202010526468.X filed in China on June 9, 2020, and the entire content of the said application is incorporated herein by reference.

[0002] This application belongs to the field of communication technologies, and particularly relates to a Power Headroom Report (PHR) reporting method, apparatus, and terminal.

Background Art

[0003] With the development of communication technologies, communication systems are becoming increasingly complete. In order to make the functions of communication systems more complete, in current communication systems, it is being considered to introduce application scenarios such as allowing a new state of a cell group, for example, a suspended state of a cell group, or a special cell (SpCell) in a cell group to be switched to an inactive state, and a cell can be switched between a dormant bandwidth part (dormant BWP) and a non - dormant BWP. In these new scenarios, if the PHR is reported according to the currently defined Power Headroom Report (PHR) reporting process, network devices cannot obtain the PHR in a timely and effective manner, thereby affecting the performance of optimizing the scheduling and control of network devices.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The objective of the embodiments of this application is to provide a power headroom report (PHR) reporting method, apparatus, and terminal that can solve the problem of being unable to obtain PHR in a timely and effective manner, thereby affecting the performance of optimizing the scheduling and control of network devices.

Means for Solving the Problem

[0005] To solve the above technical problem, this application is realized as follows.

[0006] According to a first aspect, a power headroom report (PHR) reporting method for a terminal is provided. This power headroom report (PHR) reporting method includes triggering a PHR when a first condition is satisfied, wherein the first condition is Condition 1: The path loss of at least one serving cell of any one media access control (MAC) entity satisfies a second condition, and the serving cell is in an activated state; Condition 2: A first PHR period timer for the terminal's SCell to periodically trigger a PHR times out; Condition 3: A cell group including a master cell group (MCG) or a secondary cell group (SCG) is restored; Condition 4: A special cell (SpCell) including a primary cell (PCell) or a primary secondary cell (PSCell) is activated; Condition 5: A second PHR period timer for the terminal's SpCell to periodically trigger a PHR times out; Condition 6: The serving cell is switched from a dormant bandwidth part (BWP) to a non-dormant BWP, and a PHR prohibition timer times out. It includes any one of the conditions where the PHR prohibition timer times out and the first parameter is the first value.

[0007] According to a second aspect, a power headroom report (PHR) reporting apparatus is provided. The PHR reporting apparatus includes a processing module for triggering a PHR when a first condition is satisfied, wherein the first condition is Condition 1: The path loss of at least one serving cell of any one media access control (MAC) entity satisfies a second condition and the serving cell is in an activated state; Condition 2: The first PHR period timer for the terminal's SCell to periodically trigger a PHR times out; Condition 3: A cell group including a master cell group (MCG) or a secondary cell group (SCG) is restored; Condition 4: A special cell (SpCell) including a primary cell (PCell) or a primary secondary cell (PSCell) is activated; Condition 5: The second PHR period timer for the terminal's SpCell to periodically trigger a PHR times out; Condition 6: The serving cell is switched from a dormant bandwidth part (BWP) to a non-dormant BWP and the PHR prohibition timer times out; It includes any one of the conditions where the PHR prohibition timer times out and the first parameter is the first value.

[0008] According to a third aspect, a terminal is provided. The terminal includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method according to the first aspect are realized.

[0009] According to a fourth aspect, a readable storage medium is provided, on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the method according to the first aspect are realized.

[0010] According to a fifth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor runs a program or instructions and is used to realize the method according to the first aspect.

Advantages of the Invention

[0011] In the embodiments of the present application, in application scenarios such as allowing the suspend state of a cell group or allowing the SpCell in a cell group to be switched to an inactive state, and allowing a cell to be switched between a dormant BWP and a non-dormant BWP, trigger conditions for PHR reporting are defined, so that a terminal can have more opportunities to report a PHR, and repeated transmission of the PHR of the same serving cell can be avoided, thereby ensuring that a network device can obtain the PHR more timely and effectively, which is advantageous for the network device to optimize scheduling and control.

Brief Description of the Drawings

[0012]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Modes for Carrying Out the Invention

[0013] The following clearly and completely describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained on the premise that those skilled in the art do not pay creative efforts all belong to the protection scope of the present application.

[0014] Terms such as "first" and "second" in the description and claims of the present application are used to distinguish similar objects and are not for describing a specific order or sequence. It should be understood that the data used in this way can be exchanged when appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" generally belong to the same type, without limiting the number of objects. For example, the first object may be one or more. In addition, "and / or" in the description and claims represents at least one of the connected objects, and the character " / " generally represents that the related objects before and after are in an "or" relationship.

[0015] It should be noted that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be applied to other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are always used interchangeably, and the described technology may be used in the systems and radio technologies mentioned above, or in other systems and radio technologies. However, the following description describes the New Radio (NR) system for illustrative purposes and uses NR terms in most of the following descriptions. These technologies may also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.

[0016] FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Here, the terminal 11 may also be referred to as a terminal device or a user equipment (UE). The terminal 11 may be a mobile phone, a tablet personal computer, a laptop computer, or a notebook computer, a personal digital assistant (PDA), a palm-top computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device, or an in-vehicle device (VUE), a pedestrian terminal (PUE), etc. The wearable device includes a bracelet, earphones, glasses, etc. It should be noted that the embodiments of the present application do not limit the specific type of the terminal 11. The network-side device 12 may be a base station or a core network. Here, the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or other appropriate terms in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments 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.

[0017] To facilitate understanding, the following describes some content related to the embodiments of the present application.

[0018] I. Dual Connectivity (DC) and Carrier Aggregation (CA) DC provides the resources of two network nodes to the UE. Here, one network node is called the Master node (MN), and the other is called the Secondary node (SN). In each network node, the CA technology is used, that is, a series of serving cells controlled by this node are allocated to the UE, which is also called a cell group. What the MN controls is the Master Cell Group (MCG), and what the SN controls is the Secondary Cell Group (SCG). Each cell group includes one SpCell and a series of Secondary Cells (Scell). In the MCG, the special cell is called the Primary Cell (PCell), and in the SCG, the special cell is called the Primary Secondary Cell (PSCell). In one cell group, the SpCell uses the main carrier, while other secondary cells use the secondary carrier, and the resource scheduling within one cell group is performed by the SpCell. Here, the network node may be called an access network element.

[0019] II. SCell State In New Radio (NR), an SCell includes an activated state, a suspension action in the activated state, and a deactivated state. In the embodiments of this application, the activated state may be understood as the SCell being in the activated state and operating on a non-dormant BWP. That is, activated is understood as activated with non-dormant BWP by default. The suspension action in the activated state may be understood as the SCell being in the activated state and operating on a dormant BWP, and may be called activated with dormant BWP or abbreviated as activated with dormant.

[0020] 1. When the SCell is in the activated state, the actions of the UE are transmitting a sounding reference signal (SRS) on this SCell, reporting channel state information (CSI) for this SCell, monitoring the physical downlink control channel (PDCCH) on this SCell, monitoring the PDCCH for this SCell, and, if configured, transmitting the physical uplink control channel (PUCCH) on this SCell.

[0021] 2. When the SCell is in the deactivated state, the actions of the UE are not transmitting an SRS on this SCell, not reporting CSI for this SCell, not monitoring the PDCCH on this SCell, Not monitoring the PDCCH for this SCell, and including not transmitting the uplink shared channel (UL-SCH) / physical random access channel (PRACH) / PUCCH on this SCell.

[0022] 3. When the SCell is in the activated with dormant BWP state, the UE's actions may include not monitoring the PDCCH and performing CSI measurements.

[0023] III. NR SCell State Transition Radio Resource Control (RRC) may directly place the SCell in the corresponding state or action. For example, the SCell may be directly placed in the deactivated state using RRC signaling, or when the identifier (ID) of the first active BWP is not equal to the dormant BWP ID, the SCell may be directly placed in the activated state using RRC signaling, or when the ID of the first active BWP is equal to the dormant BWP ID, the SCell may be directly placed in the activated state using RRC signaling and placed in the activated with dormant BWP state.

[0024] When the ID of the first active BWP is not equal to the dormant BWP ID, the Medium Access Control Control Element (MAC CE) may convert the SCell from deactivated to activated, or when the ID of the first active BWP is equal to the dormant BWP ID, the MAC CE may convert the SCell from deactivated to activated with dormant BWP. Physical layer signaling may control the conversion of the SCell between activated and activated with dormant BWP, i.e., the conversion of the SCell between non-dormant and dormant BWP. Timers (e.g., deactivation timers) may be controlled such that the SCell is switched from activated or activated with dormant BWP to deactivated.

[0025] IV. SCG Suspended SCG suspension is also called SCG deactivation, and SCG recovery is also called SCG activation.

[0026] When the UE transmits low data over a long period of time, the network may temporarily suspend the SCG instead of directly deleting the SCG and re-adding it when relatively large data appears. By temporarily suspending the SCG, the terminal can operate in a more power-saving manner over a long period of time and can recover the SCG more quickly when there is a large amount of data demand.

[0027] V. PHR The PHR is used to report to the gNB the difference between the estimated uplink transmission power and the maximum transmission power of the UE. The PHR provides the gNB with information for power control and scheduling. The RRC configures a PHR periodic timer (phr-PeriodicTimer), a PHR prohibit timer (phr-ProhibitTimer), and a power ratio change parameter (phr-Tx-PowerFactorChange) to control the PHR process.

[0028] The PHR trigger condition may include multiple cases as follows.

[0029] 1. When the UE has an uplink resource for transmitting new data and the phr-ProhibitTimer times out or has already timed out, and after the previous transmission power headroom report, the change value of the path loss exceeds the already configured phr-Tx-PowerFactorChange dB. 2. When the phr-PeriodicTimer times out. 3. When the RRC layer configures or reconfigures the PHR function or parameters and such configuration or reconfiguration does not turn off the PHR operation. 4. When one SCell with a configured uplink of any MAC entity is activated. 5. When adding a PSCell. 6. When the UE has an uplink resource for transmitting new data and the phr-ProhibitTimer times out or has already timed out, and the amount of change backed off from the power corresponding to a certain uplink carrier exceeds the configured phr-Tx-PowerFactorChange dB.

[0030] In a communication system, it is possible to consider application scenarios such as permitting the suspension state of a cell group or the switching of the SpCell in the cell group to an inactive state, and allowing a cell to be switched between a dormant BWP and a non-dormant BWP. In this case, the following problems exist.

[0031] When some SCell are activated, the PHR cannot be triggered. For example, when the first active BWP ID is the same as the dormant BWP ID, when this SCell is activated, the dormant BWP is activated, and in this case, the PHR is not triggered.

[0032] When converting from a dormant BWP to a non-dormant BWP, the PHR may or may not be triggered. In one embodiment, if the PHR cannot be triggered when converting from a dormant BWP to a non-dormant BWP, there is also a possibility that the PHR cannot be triggered when this SCell is in the activated state. For example, when some SCells are in the activated state, and the MAC CE has resources for transmitting new data, and the PHR prohibition timer has (already) timed out, due to the lack of a path loss reference value, the PHR cannot be triggered. In another embodiment, although the PHR is triggered when converting from a dormant BWP to a non-dormant BWP, there may be a problem that the PHR of the same cell is frequently reported. Specifically, the network device may control the serving cell to switch from the deactivated state to the activated state by RRC signaling or MAC CE. After being switched to the activated state, the serving cell may directly enter the non-dormant BWP or directly enter the dormant BWP. When entering the dormant BWP, the network device needs to control the serving cell to switch to the non-dormant BWP again by physical layer signaling. In this way, when multiple serving cells are arranged in the UE, some serving cells may be directly switched to the non-dormant BWP by layer-one signaling, and it is necessary to control some serving cells to be switched to the non-dormant BWP by layer-two signaling. In this way, the terminal triggers the PHR report multiple times within a short period of time, and since the reported PHR includes the PHR of the serving cell in the activated state, the reported content will overlap. In another case, when some serving cells are converted from the deactivated state to the activated state, the PHR needs to be triggered, and when some other cells are switched from the dormant BWP to the non-dormant BWP, the PHR also needs to be triggered.When the network needs to immediately return the data of the terminal, it may send two types of control information to the UE within a short time to switch some serving cells to the non-dormant BWP, whereby the UE may trigger the PHR report multiple times and the reported content will overlap. For example, when the terminal receives the physical layer signaling and converts the SCell from the dormant BWP to the non-dormant BWP, the PHR is triggered, and the terminal reports the PHR of all activated serving cells. However, if the terminal receives other serving cell state conversion signaling sent by the network within a short time interval before or after receiving this physical layer signaling, the terminal will frequently report the PHR of the same serving cell, and the power headroom related parameters of these serving cells will not change significantly.

[0033] The PHR could not be triggered when the cell group was restored.

[0034] The PHR could not be triggered when the spCell was activated.

[0035] In the above process, there are problems that the UE cannot trigger the PHR in a timely manner or report the same serving cell PHR repeatedly, whereby the network device cannot obtain the PHR in a timely and effective manner.

[0036] Therefore, the PHR reporting method of this application is proposed.

[0037] Hereinafter, the PHR reporting method according to the embodiments of this application will be described in detail with reference to specific embodiments and their application scenarios in conjunction with the drawings.

[0038] FIG. 2 is a flowchart of the PHR reporting method according to the embodiments of this application. This method is used for the terminal. As shown in FIG. 2, When the first condition is satisfied, it includes step 201 of triggering the PHR. Here, the first condition is that the path loss of at least one serving cell of any one media access control (MAC) entity satisfies a second condition, and the serving cell is in an activated state, which is condition 1; a first PHR period timer for the SCell of the terminal to periodically trigger a PHR times out, which is condition 2; a cell group including a master cell group (MCG) or a secondary cell group (SCG) is recovered, which is condition 3; a special cell (SpCell) including a primary cell (PCell) or a primary secondary cell (PSCell) is activated, which is condition 4; a second PHR period timer for the SpCell of the terminal to periodically trigger a PHR times out, which is condition 5; the serving cell is switched from a dormant bandwidth part (BWP) to a non-dormant BWP, and a PHR prohibition timer times out, which is condition 6; the PHR prohibition timer times out, and a first parameter is a first value, which is condition 7, and includes any one of them.

[0039] In an embodiment of the present application, triggering a PHR may be understood as triggering a PHR report, triggering a PHR process, or triggering a PHR flow.

[0040] One or more of the above conditions 1 to 7 are arranged by a network device or agreed by a protocol, and when any one of the conditions is satisfied, a PHR is triggered.

[0041] Regarding the above condition 1, it may be understood that the path loss of at least one activated serving cell of any one media access control (MAC) entity satisfies a second condition. The fact that the serving cell is in an activated state may be understood as that the serving cell is in an activated state and operates in a non-dormant BWP. This serving cell may include an SCell and an SpCell.

[0042] Regarding the above condition 2, the above first PHR period timer relates to the switching between the dormant band BWP and the non-dormant BWP of the SCell. Condition 2 may be understood as determining whether the first PHR period timer times out after the SCell is switched from the dormant BWP to the non-dormant BWP, and triggering the PHR when the first PHR period timer times out. Here, the duration of the first PHR period timer may be indicated by the network device, may be agreed upon by the protocol, or may be reported by the terminal. At the same time, the conditions for starting or restarting the first PHR period timer may be indicated by the network device or may be agreed upon by the protocol.

[0043] Regarding the above condition 3, it may be understood that when the cell group is restored, the PHR is triggered. The restoration of the cell group may be understood as restoring a cell group in the suspended state or restoring a cell group in the suspended state.

[0044] Regarding the above condition 4, it may be understood that when the SpCell is activated, the PHR is triggered. Here, the activation of the SpCell may be understood as the SpCell being in the active state and operating on a certain BWP, and the terminal monitors the PDCCH on this BWP of this SpCell, and may operate on the non-dormant BWP, for example.

[0045] Regarding the above condition 5, the above second PHR period timer is related to the activation state of the SpCell. Condition 5 may be understood as determining whether the second PHR period timer times out after the SpCell is activated, and triggering a PHR when the second PHR period timer times out. Here, the duration of the second PHR period timer may be indicated by a network device, agreed upon by a protocol, or reported by a terminal. At the same time, the condition for the second PHR period timer to be started or restarted may be indicated by a network device or agreed upon by a protocol.

[0046] Regarding the above condition 6, it may be understood that when the serving cell is switched from a dormant BWP to a non-dormant BWP (for example, switched to a BWP specified by firstOutsideActiveTimeBWP-Id (an ID indicating the BWP within the outside DRX time of the serving cell) or firstWithinActiveTimeBWP-Id (an ID indicating the BWP within the DRX time of the serving cell)), and the PHR prohibition timer times out, a PHR is triggered. Here, the network device may control the serving cell to be switched from a dormant BWP to a non-dormant BWP by physical layer signaling, or may control the serving cell to be switched from a dormant BWP to a non-dormant BWP by setting a timer, which is not further limited here. This PHR prohibition timer includes phr-ProhibitTimer. The above PHR prohibition timer is used to prohibit the terminal from triggering a PHR. As an embodiment, the serving cell being switched from a dormant BWP to a non-dormant BWP includes the serving cell of any MAC entity having a configured grant being switched from a dormant BWP to a non-dormant BWP.

[0047] Regarding the above condition 7, it may be understood that the PHR is triggered when the PHR prohibition timer times out and the first parameter is the first value. Here, the first parameter is used to indicate whether to trigger the PHR. This first parameter value may be a delayed PHR trigger condition (PendingPHR-Trigger).

[0048] In one embodiment, when the serving cell is switched from the inactive BWP to the active BWP and the PHR prohibition timer does not time out, the PHR is not triggered. However, in another embodiment, when the serving cell is switched from the inactive BWP to the active BWP and the PHR prohibition timer does not time out, the first parameter PendingPHR-Trigger is set to be true. When the PHR prohibition timer times out and PendingPHR-Trigger is true, the PHR is triggered.

[0049] It should be noted that the above conditions 1 to 7, as partial trigger conditions for triggering the PHR, complement the currently defined PHR trigger conditions, so that the terminal can have more opportunities to report the PHR, which is beneficial for the network device to obtain the PHR and optimize the network scheduling and control.

[0050] In the embodiments of the present application, in application scenarios such as the suspension state of the cell group or allowing the SpCell in the cell group to be switched to the inactive state, and the cell can be switched between the dormant BWP and the non-dormant BWP, the trigger conditions for PHR reporting are defined, so that the terminal can have more opportunities to report the PHR, and the repeated transmission of the PHR of the same serving cell can be avoided, thereby ensuring that the network device can obtain the PHR more timely and effectively, which is beneficial for the network device to optimize the scheduling and control.

[0051] Optionally, in one embodiment, the second condition is that the absolute value of the path loss or the difference between the path loss and a preset reference path loss is greater than or equal to a first threshold, the absolute value of the path loss or the difference between the path loss and a preset reference path loss is less than a second threshold, the absolute value of the path loss or the difference between the path loss and a preset reference path loss is located within a first preset interval, the difference between the path loss or the path loss and a preset reference path loss is greater than or equal to a third threshold, the difference between the path loss or the path loss and a preset reference path loss is less than a fourth threshold, and at least one of the following: the difference between the path loss or the path loss and a preset reference path loss is located within a second preset interval.

[0052] In an embodiment of the present application, the path loss may be understood as a power headroom. The magnitudes of the first threshold, the second threshold, the third threshold, the fourth threshold, the first preset interval, and the second preset interval may be agreed upon by a protocol, or arranged by network equipment, or reported by a terminal. Here, the first threshold, the second threshold, the third threshold, the fourth threshold, the first preset interval, and the second preset interval are arranged for each terminal, or for each cell, or for each BWP. In other words, the first threshold, the second threshold, the third threshold, the fourth threshold, the first preset interval, and the second preset interval may be arranged per UE, or per SCell, or per BWP.

[0053] Optionally, in one embodiment, the above condition 1 is that the PHR prohibition timer has timed out, It may further include at least one of having an uplink resource for the MAC entity to transmit new data.

[0054] In an embodiment of the present application, for Condition 1, by further setting the timeout of the PHR prohibition timer, the number of times the terminal reports the PHR can be reduced, thereby reducing the power consumption loss of the terminal and avoiding resource waste. It is further set so that the MAC entity has an uplink resource for transmitting new data, thereby enhancing the purposefulness and effectiveness of the PHR report, triggering the PHR report only when there is an uplink resource for transmitting new data, thereby ensuring that the network device can obtain the PHR in a timely manner, and thereby optimizing the scheduling and control of the network.

[0055] Optionally, in one embodiment, the condition for the first PHR period timer in the above Condition 2 to be started or restarted is that the SCell is switched from a dormant bandwidth part BWP to a non-dormant BWP, and after the SCell is switched from a dormant BWP to a non-dormant BWP, including either having new data transmission and / or having a resource for transmitting new data.

[0056] In an embodiment of the present application, the SCell being switched from a dormant BWP to a non-dormant BWP may be instructed by a network device, triggered by other events, for example, triggered by a timer, and after the specified timer times out, trigger the SCell to be switched from a dormant BWP to a non-dormant BWP.

[0057] Optionally, the first PHR period timer satisfies that when the SCell is switched from a non-dormant BWP to a dormant BWP before the first PHR period timer times out, the first PHR period timer stops timing.

[0058] For example, before the first PHR period timer times out, if the terminal receives physical signaling and converts the SCell from activated with non-dormant BWP to activated with dormant BWP, or receives a MAC CE and converts the SCell to an inactive state, the first PHR period timer stops. When the SCell is switched to the dormant BWP or to the inactive state, the first PHR period timer stops, thus avoiding triggering unnecessary PHR reports when the first PHR period timer times out.

[0059] Optionally, the condition 3 is receiving a first radio resource control (RRC) message for instructing to recover the cell group, receiving a second RRC message for instructing to add or configure the cell group as a non-suspended state, receiving a first MAC control element (CE) for instructing to recover the cell group, receiving a second MAC CE for instructing to switch the SpCell and the SCell in the cell group to an active state, receiving a first downlink control information (DCI) for instructing to recover the cell group, receiving a second DCI for instructing to switch the SpCell and the SCell in the cell group to a non-dormant BWP, and further includes at least one of the following: the suspend timer for triggering to recover the cell group times out.

[0060] In an embodiment of the present application, when the network device performs the initial configuration or reconfiguration of the SCG for the terminal via an RRC message, it may be directly configured in a suspended state or directly configured in a non-suspended state.

[0061] It should be understood that in this embodiment, one suspend timer may be managed for each cell group. When a certain cell group enters the suspend state, the suspend timer corresponding to this cell group is started or restarted. When the suspend timer times out, this cell group is recovered.

[0062] Optionally, in one embodiment, the above SpCell is receiving a third RRC message for instructing to arrange the SpCell in an active state, receiving a target for instructing to switch the SpCell to an active state, activated by at least one of the above that the timer associated with the SpCell times out.

[0063] Here, the above target includes at least one of a fourth RRC message, a third MAC CE, and a third DCI. That is, the SpCell may be instructed to be arranged or converted to an active state by at least one of RRC, MAC CE, and DCI.

[0064] Optionally, the condition for starting or restarting the second PHR period timer of the above condition 5 is that the SpCell is switched to an active state, that there is new data transmission after the SpCell is activated, and that there is a resource for transmitting new data after the SpCell is activated, including at least one of them.

[0065] In an embodiment of the present application, when the SpCell is switched to the active state, the second PHR period timer may be started or restarted. When the SpCell is switched to the active state and has new data transmission, the second PHR period timer may be started or restarted. When the SpCell is switched to the active state and has resources for transmitting new data, the second PHR period timer may be started or restarted. Also, when the SpCell is switched to the active state, has new data transmission, and has resources for transmitting new data, the second PHR period timer may be started or restarted.

[0066] Furthermore, the second PHR period timer satisfies that when target signaling is received before the second PHR period timer times out, the second PHR period timer stops timing. Here, the target signaling is used to instruct the SpCell to switch to another state or behavior other than the active state.

[0067] This other state or behavior may be understood as an inactive state, a suspended BWP behavior in the active state, or other newly defined state or behavior.

[0068] For example, before the second PHR period timer times out, when the terminal receives signaling transmitted by the network and converts the SpCell from the active state to an inactive state, a suspended BWP behavior in the active state, or other newly defined state or behavior, or when the terminal receives a MAC CE and converts the SCell to an inactive state, the first PHR period timer is stopped, and the second PHR period timer is stopped, so that unnecessary PHR reports can be avoided from being triggered when the second PHR period timer times out.

[0069] It should be noted that for the above condition 4, it may further include that the PSCell has an uplink resource, that is, it has a configured grant.

[0070] Optionally, in one embodiment, for the above condition 2, when the third PHR period timer times out, the third PHR period timer may further include being used for the terminal to periodically report the PHR trigger.

[0071] Optionally, in one embodiment, when the condition for triggering the PHR is the above condition 7, the method Before the PHR prohibition timer times out, when the terminal receives control signaling and switches the serving cell from the inactive BWP to the active BWP, it further includes setting the value of the first parameter to a first value.

[0072] In the embodiments of the present application, the above first value is used to indicate that it is necessary to trigger the PHR, or there is a PHR or a delayed PHR to be triggered. For example, this first value may be represented by "true". In other cases, the first parameter value may be set to a second value, and this second value may be represented by "false".

[0073] Furthermore, in order to reduce the amount of reported data, reduce the resource overhead, and improve the effectiveness of the PHR report, in this embodiment, when the condition for triggering the PHR is not the above condition 6 or the above condition 7, the PHR is set to include the PHR of the serving cell in the activated state, where the amount of path loss change of the serving cell in the activated state may be greater than or equal to a fifth preset value.

[0074] In this embodiment, the path loss change amount refers to the change amount between the currently triggered PHR and the previously reported PHR. When the PHR change amount of a certain cell is relatively large, the corresponding PHR is reported. When the PHR change amount of a certain cell is relatively small, there is no need to report the corresponding PHR. The above-mentioned triggering condition of the PHR not being the condition 6 or the condition 7 means that the triggering condition of the PHR is any one of the conditions 1 to 5 above, and it may also be understood as other triggering conditions defined by the conventional protocol, and no further limitation is made here.

[0075] To better understand this application, the following will be described in detail using specific examples.

[0076] Example 1: When the path loss or power headroom of the active serving cell exceeds a preset threshold, trigger the PHR.

[0077] When the PHR prohibition timer times out or has already timed out, and the path loss or power headroom value of at least one active serving cell of any MAC entity satisfies the third condition, and this MAC entity has uplink resources for transmitting new data, trigger the PHR. Here, the third condition includes the absolute value of the path loss exceeding a preset threshold, the absolute value of the power headroom exceeding a preset threshold, the path loss belonging to a preset interval, the power headroom belonging to a preset interval, the difference between the path loss and a preset path loss value exceeding a preset threshold, the difference between the power headroom and a preset power headroom value exceeding a preset threshold, including at least one of them. The above-mentioned preset threshold, preset interval, preset path loss value, and preset power headroom value are agreed upon by the protocol, arranged by the network, and may be reported by the UE. The preset threshold, preset interval, preset path loss value, and preset power headroom value may be arranged per UE, or per SCell, or per BWP. Here, the serving cell includes the SCell and the SpCell.

[0078] Example 2: When the SCell is switched from dormant to non-dormant BWP, start or restart the first PHR periodic timer, and trigger the PHR after this first PHR periodic timer times out.

[0079] Optionally, the UE receives a MAC CE to convert SCell 1 from the inactive state to activated with dormant BWP, or receives an RRC message to make SCell 1 activated with dormant BWP, and does not trigger the PHR in this process.

[0080] Optionally, the UE receives physical layer signaling to convert SCell 1 from activated with dormant BWP to activated with non-dormant BWP, and SCell 1 enters the activated state. In this process, the conditions for starting or restarting the first PHR periodic timer (for example, phr-PeriodicDormantTimer) are Condition A: when the dormant BWP is switched to the non-dormant BWP, Condition B: after the dormant BWP is switched to the non-dormant BWP, when there is new data transmission and / or there are resources for transmitting new data, After the third PHR periodic timer (e.g., phr-PeriodicTimer) and / or the first PHR periodic timer times out, a PHR is triggered, and the third PHR periodic timer is used for the terminal to periodically report the triggered PHR.

[0081] Optionally, before the first PHR periodic timer times out, when the UE receives physical layer signaling to convert SCell 1 from activated with non-dormant BWP to activated with dormant BWP, or when the UE receives a MAC CE to convert the SCell to the inactive state, the first PHR periodic timer is stopped.

[0082] The related parameters (e.g., time duration) of the first PHR periodic timer may be agreed upon by the protocol, configured by the network, or reported by the UE. The first PHR periodic timer may be a per UE parameter, or a per SCell parameter, or a per BWP parameter.

[0083] Regarding the time duration of the first PHR periodic timer, 1. It may be the same as or different from other PHR periodic timers. 2. It may satisfy the condition of expanding by a certain multiple (Scaling Factor) based on the configuration of other PHR periodic timers.

[0084] Example 3: Trigger a PHR when the cell group is restored. In this example, the case of triggering a PHR when the SCG (resume SCG) is restored is used as an example for explanation.

[0085] Receiving an RRC message to indicate resume SCG, Receiving a MAC CE to indicate resume SCG, Receiving a DCI to indicate resume SCG, The suspend timer (SCG suspend Timer) times out and instructs to resume SCG, and when receiving DCI and instructing to switch the PSCell and SCG SCells from the dormant BWP to the non-dormant BWP, when the SCG in the suspended state is restored, trigger the PHR, wherein the SCG suspend Timer may be agreed by the protocol, arranged by the network, or reported by the UE. The network arrangement may be sent to the UE by broadcast or dedicated signaling.

[0086] Example 4: When the SpCell is activated, trigger the PHR. Taking the example of triggering the PHR when the PSCell is activated.

[0087] When the RRC message arranges the PSCell in the active state, for example, when adding / modifying the SCG, arrange the SCG in the active state, and when the RRC message or MAC CE converts the PSCell from the non-active state, activated with dormant BWP, or a new state / behavior to the active state, and the new state / new behavior is not completely equivalent to the behavior of the non-active state and not completely equivalent to the behavior of the activated with dormant BWP, and when the DCI signaling converts the PSCell from the dormant BWP or a new state / new behavior to the active state, and the new state or behavior is not completely equivalent to the behavior of the non-active state and not completely equivalent to the behavior of the dormant BWP, and when at least one of the following occurs: the timer related to the SpCell (PSCell PHR timer) times out, trigger the PHR when the PSCell is activated.

[0088] Here, the PSCell PHR timer may be agreed upon by the protocol, configured by the network, or reported by the UE. The network configuration may be sent to the UE by broadcast or dedicated signaling.

[0089] Optionally, in one embodiment, the activated PSCell above is the PSCell with a configured grant.

[0090] Example 5: When the SpCell is switched from other states / acts to the activated state, start or restart a second PHR period timer (e.g., phr-PeriodicPScellTimer), and trigger a PHR after this second PHR period timer times out. This example will be described in detail by taking the case where the SpCell is a PSCell.

[0091] In step 1, the PSCell is in the deactivated state. In step 2, when the UE receives an RRC / MAC CE / physical layer signaling / timer timeout, when converting the PSCell from the deactivated state to the activated state, start or restart the second PHR period timer, or after the PSCell is activated, when transmitting new data or having a resource for transmitting new data, start or restart the second PHR period timer. In step 3a, trigger a PHR after the second PHR period timer times out.

[0092] In step 3b, before the second PHR period timer times out, if the UE receives RRC / MAC CE / physical layer signaling to convert the PSCell from the activated state to other states / acts, stop the PHR period timer.

[0093] The relevant parameters (e.g., time duration) of the second PHR period timer may be agreed upon by the protocol, configured by the network, or reported by the UE. The second PHR period timer may be a per UE parameter, or a per SCell parameter, or a per BWP parameter.

[0094] The time duration of the second PHR period timer may be the same as or different from that of other PHR period timers, and may be scaled based on the time duration of other PHR period timers, i.e., the time duration is scaled according to a multiple.

[0095] It should be noted that in the PHR reporting method according to the embodiments of the present application, the execution entity may be a PHR reporting device, or a method control module for executing the PHR reporting method in this PHR reporting device. In the embodiments of the present application, taking the PHR reporting device executing the PHR reporting method as an example, the device of the PHR reporting method according to the embodiments of the present application will be described.

[0096] FIG. 3 is a structural diagram of a PHR reporting device according to an embodiment of the present application. As shown in FIG. 3, the PHR reporting device 300 includes a processing module 301 for triggering a PHR when a first condition is satisfied, wherein the first condition is Condition 1: The path loss of at least one serving cell of any one media access control MAC entity satisfies a second condition and the serving cell is in an activated state; Condition 2: The first PHR period timer for periodically triggering a PHR by the SCell of the terminal times out; Condition 3: A cell group including a master cell group MCG or a secondary cell group SCG is restored; Condition 4: A special cell SpCell including a primary cell PCell or a primary secondary cell PSCell is activated; Condition 5: The second PHR period timer for periodically triggering a PHR by the SpCell of the terminal times out. Condition 6 in which the serving cell is switched from a dormant bandwidth part BWP to a non-dormant BWP and the PHR prohibition timer times out, and includes either one of Condition 7 in which the PHR prohibition timer times out and the first parameter is the first value.

[0097] Optionally, the second condition is that the absolute value of the path loss or the difference between the path loss and a preset reference path loss is greater than or equal to a first threshold value, that the absolute value of the path loss or the difference between the path loss and a preset reference path loss is less than a second threshold value, that the absolute value of the path loss or the difference between the path loss and a preset reference path loss is located in a first preset interval, that the path loss or the difference between the path loss and a preset reference path loss is greater than or equal to a third threshold value, that the path loss or the difference between the path loss and a preset reference path loss is less than a fourth threshold value, and includes at least one of that the path loss or the difference between the path loss and a preset reference path loss is located in a second preset interval.

[0098] Optionally, the condition 1 is that the PHR prohibition timer times out, and further includes at least one of that the MAC entity has an uplink resource for transmitting new data.

[0099] Optionally, the condition for starting or restarting the first PHR period timer in the condition 2 is that the SCell is switched from a dormant bandwidth part BWP to a non-dormant BWP, and includes either one of that after the SCell is switched from a dormant BWP to a non-dormant BWP, it has new data transmission and / or has a resource for transmitting new data.

[0100] Optionally, the first PHR period timer satisfies that when the SCell is switched from the non-inactive BWP to the inactive BWP before the first PHR period timer times out, the first PHR period timer stops timing.

[0101] Optionally, the condition 3 is receiving a first radio resource control (RRC) message for instructing to recover the cell group, receiving a second RRC message for instructing to add or configure the cell group as a non-suspended state, receiving a first MAC control element (CE) for instructing to recover the cell group, receiving a second MAC CE for instructing to switch the SpCell and the SCell in the cell group to an active state, receiving a first downlink control information (DCI) for instructing to recover the cell group, receiving a second DCI for instructing to switch the SpCell and the SCell in the cell group to a non-inactive BWP, further including at least one of the following: the suspend timer for triggering to recover the cell group times out.

[0102] Optionally, the SpCell is activated by at least one of the following methods: receiving a third RRC message for instructing to configure the SpCell in an active state, receiving a target for instructing to switch the SpCell to an active state, the timer associated with the SpCell times out.

[0103] Optionally, the target object includes at least one of a fourth RRC message, a third MAC CE, and a third DCI.

[0104] Optionally, the condition for starting or restarting the second PHR period timer is that the SpCell is switched to the active state, that after the SpCell is activated, there is new data transmission, and that after the SpCell is activated, there is a resource for transmitting new data, and includes at least one of them.

[0105] Optionally, the second PHR period timer satisfies that when target signaling is received before the second PHR period timer times out, the second PHR period timer stops timing, where the target signaling is used to instruct the SpCell to switch to another state or behavior other than the active state.

[0106] Optionally, when the condition for triggering the PHR is condition 7, the processing module executes an operation of switching the serving cell from the inactive BWP to the active BWP before the PHR prohibition timer times out, and is used to set the value of the first parameter to the first value when the PHR prohibition timer is running.

[0107] Optionally, when the condition for triggering the PHR is not condition 6 or condition 7, the PHR includes the PHR of each serving cell in the active state, where the change amount of the PHR of the serving cell in the active state is equal to or greater than a fifth preset value, and the reference value of the change amount of the PHR is the PHR of this serving cell transmitted last time.

[0108] The PHR reporting apparatus according to the embodiment of the present application can implement each process according to the embodiment of the method in FIG. 2, and in order to avoid repetition of description, it will not be described further here.

[0109] The PHR reporting apparatus in the embodiment of the present application may be a device, or may be a component, integrated circuit, or chip in a terminal. This device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of the terminal 11 listed above. The non-mobile terminal may be a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a deposit and payment machine, or a self-service machine, etc., and the embodiment of the present application is not specifically limited thereto.

[0110] The PHR reporting apparatus in the embodiment of the present application may be a device having an operating system. This operating system may be an Android operating system, an iOS operating system, or other possible operating systems, and the embodiment of the present application is not specifically limited thereto.

[0111] The PHR reporting apparatus according to the embodiment of the present application implements each process realized by the embodiment of the method in FIG. 2 and can achieve the same technical effect. In order to avoid repetition of description, it will not be described further here.

[0112] Optionally, as shown in FIG. 4, the embodiment of the present application further provides a terminal 400, which includes a processor 401, a memory 402, and a program or instruction stored in the memory 402 and executable on the processor 401. When this program or instruction is executed by the processor 401, each process of the embodiment of the above PHR reporting method can be realized and the same technical effect can be achieved.

[0113] FIG. 5 is a schematic diagram of the hardware structure of a terminal for implementing each embodiment of the present application.

[0114] This terminal 500 includes, but is not limited to, components such as a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, and a processor 510.

[0115] As can be understood by those skilled in the art, the terminal 500 may further include a power source (e.g., a battery) for supplying power to each component. The power source may be logically connected to the processor 510 by a power management system, whereby functions such as charge and discharge management and power consumption management can be realized by the power management system. The terminal structure shown in FIG. 5 does not constitute a limitation on the terminal. The terminal may include more or fewer components than those shown, or a combination of some components, or a different arrangement of components, which will not be further described herein.

[0116] It should be understood that in the embodiments of the present application, the input unit 504 may include a Graphics Processing Unit (GPU) 5041 and a microphone 5042. The graphics processor 5041 processes the image data of a still image or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 506 may include a display panel 5061, and the display panel 5061 may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 507 includes a touch panel 5071 and other input devices 5072. The touch panel 5071 is also called a touch screen. The touch panel 5071 may include two parts: a touch detection device and a touch controller. The other input devices 5072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, an operation lever, and will not be further described herein.

[0117] In the embodiments of the present application, after receiving the downlink data from the network-side device, the radio frequency unit 501 causes the processor 510 to process it, and also transmits the uplink data to the network device. Generally, the radio frequency unit 501 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0118] Memory 509 may be used to store software programs or instructions and various data. Memory 509 may mainly include a program or instruction storage area and a data storage area. Here, the program or instruction storage area can store an operating system, application programs or instructions required for at least one function (for example, audio playback function, image playback function, etc.). Note that Memory 509 may include a high-speed random access memory and may also include a non-volatile memory. Here, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, it may be at least one magnetic disk memory device, a flash memory device, or other non-volatile solid-state memory devices.

[0119] Processor 510 may include one or more processing units. Optionally, Processor 510 may integrate an application processor and a modem processor. Here, the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, for example, a baseband processor. As can be understood, the above modem processor may not be integrated into Processor 510.

[0120] Here, Processor 510 is used to trigger the PHR when a first condition is met. Here, the first condition is that the path loss of at least one serving cell of any one media access control MAC entity meets a second condition, and the condition 1 that the serving cell is in an activated state, and Condition 2 that the first PHR period timer for the SCell of the terminal to periodically trigger PHR times out, and Condition 3 that a cell group including a master cell group MCG or a secondary cell group SCG is restored, and Condition 4 that a special cell SpCell including a primary cell PCell or a primary secondary cell PSCell is activated, and Condition 5 that the second PHR period timer for the SpCell of the terminal to periodically trigger PHR times out, and Condition 6 that the serving cell is switched from a dormant bandwidth part BWP to a non-dormant BWP and the PHR prohibition timer times out, and It includes any one of Condition 7 that the PHR prohibition timer times out and the first parameter is a first value.

[0121] It should be understood that in this embodiment, the above processor 510 and radio frequency unit 501 can implement each process realized by the terminal in the embodiment of the method in FIG. 2. To avoid repetition of the description, it will not be described further here.

[0122] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When this program or instruction is executed by a processor, each process of the embodiment of the above PHR reporting method is realized, and the same technical effect can be achieved. To avoid repetition of the description, it will not be described further here.

[0123] Here, the processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, etc.

[0124] Embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions, implement each process of the embodiment of the above PHR reporting method, and achieve the same technical effect. To avoid repetition of the description, it will not be described further here.

[0125] It should be understood that the chip referred to in the embodiments of the present application may also be referred to as a system-level chip, a system-on-chip, a chip system, a system-on-a-chip, etc.

[0126] As can be understood, these embodiments described in the present disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. may be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, or other electronic units for performing the functions of the present application, or a combination thereof.

[0127] It should be noted that in this specification, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive "including", whereby a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed or elements specific to such a process, method, article or apparatus. In the case of an element limited by the phrase "comprising one...", in the absence of further limitations, it is not excluded that there are also other same elements in the process, method, article or apparatus comprising this element. It should be pointed out that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order illustrated or described, and may include performing functions basically simultaneously or in reverse order based on related functions. For example, a method described in a procedure different from that described can be executed, and various steps can be added, omitted or combined. Also, features described with reference to some examples can be combined in other examples.

[0128] As can be clearly understood by those skilled in the art from the description of the above embodiments, the method of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, it may also be realized by hardware, but in many cases, the former is a more preferred embodiment. Based on such an understanding, the technical solution of this application may, in essence, or the part that has contributed to the prior art, be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or base station, etc.) to execute the methods described in the embodiments of this application.

[0129] The above has described the embodiments of the present application while referring to the drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely exemplary and not restrictive. Those skilled in the art can, based on the suggestions of the present application, perform many forms without departing from the spirit of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A power headroom report PHR reporting method used for a terminal, comprising: when the terminal determines that a first condition is satisfied, triggering a PHR, wherein the first condition is Condition 2 in which a first PHR period timer for the terminal's SCell to periodically trigger a PHR times out, and the condition for starting or restarting the first PHR period timer is either that the SCell is switched from a dormant BWP to a non-dormant BWP, or that after the SCell is switched from a dormant BWP to a non-dormant BWP, it has new data transmission and / or has resources for transmitting new data, Condition 2; Condition 3 in which a cell group including a master cell group MCG or a secondary cell group SCG is restored, where the restoration of the cell group represents restoring a suspended cell group, Condition 3; Condition 4 in which a special cell SpCell including a primary cell PCell is activated; Condition 5 in which a second PHR period timer for the terminal's special cell SpCell to periodically trigger a PHR times out, and the second PHR period timer satisfies that when it receives target signaling before timing out, it stops timing, and the target signaling is used to instruct the special cell SpCell to switch to another state or behavior other than the active state, Condition 5; Condition 6 in which the serving cell is switched from a dormant bandwidth part BWP to a non-dormant BWP and a PHR prohibition timer times out; Condition 7 in which the PHR prohibition timer times out and a first parameter is a first value, where the first parameter is PendingPHR - Trigger and the first value is true (true), and the power headroom report PHR reporting method includes any one of them.

2. The power headroom report PHR reporting method according to Claim 1, wherein the first PHR period timer satisfies that when the SCell is switched from a non-dormant BWP to a dormant BWP before the first PHR period timer times out, the first PHR period timer stops timing.

3. The condition 3 is Receiving a first Radio Resource Control (RRC) message for instructing to recover the cell group; Receiving a second RRC message for instructing to add or arrange the cell group in a non-suspended state; Receiving a first Medium Access Control (MAC) Control Element (CE) for instructing to recover the cell group; Receiving a second MAC CE for instructing to switch the special cell (SpCell) and the Secondary Cell (SCell) in the cell group to an active state; Receiving a first Downlink Control Information (DCI) for instructing to recover the cell group; Receiving a second DCI for instructing to switch the SpCell and the SCell in the cell group to a non-restricted Bandwidth Part (BWP); The Power Headroom Report (PHR) reporting method according to claim 1, further comprising at least one of the following: a suspend timer for triggering to recover the cell group has timed out.

4. The special cell (SpCell) is Receiving a third RRC message for instructing to arrange the SpCell in an active state; Receiving a target for instructing to switch the SpCell to an active state; The PHR reporting method according to claim 1, wherein the SpCell is activated by at least one of the following: a timer associated with the SpCell has timed out.

5. The target includes at least one of a fourth RRC message, a third MAC CE, and a third DCI, according to the PHR reporting method of claim 4.

6. The conditions for starting or restarting the second PHR period timer are The SpCell has been switched to an active state; After the SpCell is activated, there is new data transmission; The PHR reporting method according to claim 1, further comprising at least one of the following: after the SpCell is activated, there is a resource for transmitting new data.

7. When the condition for triggering the PHR is the condition 7, the PHR reporting method is The method for reporting a power headroom report (PHR) according to claim 1, further comprising: when an operation of switching a serving cell from a dormant BWP to a non-dormant BWP is executed before the PHR prohibition timer times out and the PHR prohibition timer is running, setting the value of the first parameter to a first value.

8. When the condition for triggering the PHR is not the condition 6 or the condition 7, the PHR includes the PHR of each serving cell in the activated state, and the amount of change in the PHR of the serving cell in the activated state is equal to or greater than a fifth preset value, and the reference value of the amount of change in the PHR is the PHR of this serving cell transmitted last time. The method for reporting a power headroom report (PHR) according to claim 1.

9. A power headroom report (PHR) reporting apparatus used for a terminal, comprising a processing module for triggering a PHR when it is determined that a first condition is satisfied, wherein the first condition is Condition 2 that a first PHR period timer for periodically triggering a PHR by an SCell of the terminal times out, and the condition for starting or restarting the first PHR period timer is that the SCell is switched from a dormant BWP to a non-dormant BWP, and after the SCell is switched from a dormant BWP to a non-dormant BWP, having new data transmission and / or having a resource for transmitting new data, Condition 2 including any one of them, Condition 3 that a cell group including a master cell group (MCG) or a secondary cell group (SCG) is restored, and the restoration of the cell group represents restoring a cell group in a suspended state, Condition 3, Condition 4 that a special cell (SpCell) including a primary cell (PCell) is activated, Condition 5 that a second PHR period timer for periodically triggering a PHR by the special cell (SpCell) of the terminal times out, and the second PHR period timer satisfies that when receiving target signaling before the second PHR period timer times out, the second PHR period timer stops timing, and the target signaling is used to instruct the special cell (SpCell) to switch to another state or behavior except the activated state, Condition 5. Condition 6 in which the serving cell is switched from a dormant bandwidth part BWP to a non-dormant BWP and a PHR prohibition timer times out, and Condition 7 in which the PHR prohibition timer times out and a first parameter is a first value, where the first parameter is PendingPHR-Trigger and the first value is true (true), or a power headroom report PHR reporting apparatus including any one of them. **Claim 10**: A terminal, comprising a memory, a processor, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps in the power headroom report PHR reporting method according to any one of claims 1 to 8 are realized.

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