WO2024152251A1 - Indication method, and device - Google Patents

Abstract

Disclosed in the present application are an indication method, and a device. The indication method comprises: a terminal device sending first information, wherein the first information comprises information of the maximum transmitted power of the terminal device being adjusted and/or limited due to a first problem. The embodiments of the present application can make the terminal device inform a network side of the information of the transmitted power of the terminal device being adjusted and/or limited.

Description

Indication methods and equipment Technical Field

The present application relates to the field of communications, and more particularly, to an indication method and device.

Background technique

The terminal's transmit power level is defined according to the frequency band or frequency band combination, mostly from the perspective of regulations or from the perspective of ensuring system performance. However, for the terminal, transmitting at a higher power or using multiple frequency bands or multiple antenna panels at the same time can improve uplink coverage and throughput, but some conditions of the terminal will deteriorate, making it impossible for the terminal to be in a high power or multi-antenna panel concurrent state for a long time, so the terminal must limit its transmit power at some point. However, in the current mechanism, the terminal cannot inform the network of its limited transmit power, resulting in deviations in the network's control of the terminal's transmit power.

Summary of the invention

The embodiments of the present application provide an indication method and device, which enable a terminal device to inform a network side of information on its transmission power adjustment and/or limitation.

An embodiment of the present application provides an indication method, including: a terminal device sends first information, where the first information includes information that the maximum transmission power of the terminal device is adjusted and/or limited due to a first problem.

An embodiment of the present application also provides an indication method, including: a network device receives first information, the first information including information that a maximum transmission power of a terminal device is adjusted and/or limited due to a first problem.

An embodiment of the present application also provides a terminal device, including: a first sending module, used to send first information, the first information including information that the maximum transmission power of the terminal device is adjusted and/or limited due to a first problem.

An embodiment of the present application also provides a network device, including: a third receiving module, used to receive first information, where the first information includes information that the maximum transmission power of the terminal device is adjusted and/or limited due to a first problem.

The embodiment of the present application also provides a communication device, including a processor, a memory and a transceiver. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory and control the transceiver so that the device executes the above-mentioned indication method.

The embodiment of the present application also provides a chip for implementing the above-mentioned indication method.

Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned indication method.

An embodiment of the present application also provides a computer-readable storage medium for storing a computer program, wherein the computer program enables a computer to execute the above-mentioned indication method.

An embodiment of the present application also provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned indication method.

The embodiment of the present application also provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned indication method.

In the embodiment of the present application, the terminal device sends information on the maximum transmission power adjustment and/or limitation caused by the first problem, so that the terminal device can inform the network of its transmission restriction information, thereby facilitating the network's control over the terminal.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 exemplarily shows a communication system 100 .

FIG. 2A is a beam-based communication method in the millimeter wave frequency band.

FIG. 2B shows the terminal single-band transmission power control requirement based on beam.

FIG. 2C is a schematic diagram of spherical coverage requirements.

FIG. 3 is a schematic flowchart of an indication method 300 according to an embodiment of the present application.

FIG. 4 is a schematic flowchart of an indication method 400 according to an embodiment of the present application.

FIG. 5 is a schematic diagram of the structure of a terminal device 500 according to an embodiment of the present application.

FIG6 is a schematic diagram of the structure of a terminal device 600 according to an embodiment of the present application.

FIG. 7 is a schematic diagram of the structure of a network device 700 according to an embodiment of the present application.

FIG8 is a schematic diagram of the structure of a network device 800 according to an embodiment of the present application.

FIG. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application.

FIG. 10 is a schematic structural diagram of a chip 1000 according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

It should be noted that the terms "first", "second", etc. in the description and claims of the embodiments of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The objects described by the "first" and "second" described at the same time may be the same or different.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, and NR system. Evolved systems, LTE-based access to unlicensed spectrum (LTE-U) systems, NR-based access to unlicensed spectrum (NR-U) systems, non-terrestrial communication networks (NTN) systems, universal mobile telecommunication systems (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), fifth-generation communication (5th-Generation, 5G) systems or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

In one implementation, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

In one embodiment, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.

The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in the next generation communication system such as the NR network, or a terminal device in the future evolved Public Land Mobile Network (PLMN) network, etc.

In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

In the embodiments of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

As an example but not limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

In an embodiment of the present application, a network device can provide services for a cell, and a terminal device communicates with the network device through transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to a network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Fig. 1 exemplarily shows a communication system 100. The communication system includes a network device 110 and two terminal devices 120. In one embodiment, the communication system 100 may include multiple network devices 110, and each network device 110 may include other number of terminal devices 120 within its coverage area, which is not limited in the embodiment of the present application.

In one implementation, the communication system 100 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), but this is not limited to the embodiments of the present application.

Among them, the network equipment may include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks for communicating with the access network equipment. The access network equipment may be an evolutionary base station (evolutional node B, referred to as eNB or e-NodeB) macro base station, micro base station (also called "small base station"), pico base station, access point (AP), transmission point (TP) or new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next-generation (mobile communication system) (next radio, NR) system or an authorized auxiliary access long-term evolution (LAA-LTE) system.

It should be understood that the device with communication function in the network/system in the embodiment of the present application can be called a communication device. Taking the communication system shown in Figure 1 as an example, the communication device may include a network device and a terminal device with communication function, and the network device and the terminal device may be specific devices in the embodiment of the present application, which will not be repeated here; the communication device may also include other devices in the communication system, such as other network entities such as a network controller and a mobile management entity, which is not limited in the embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and/or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship of indication and being indicated, configuration and being configured, etc.

To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

1. Transmitting power of terminals in the frequency band below 6 GHz (Sub 6 GHz):

The maximum transmit power of a Sub 6GHz terminal is limited by the power level, as shown in Table 1 below. Its total transmit power cannot exceed the limit of the corresponding power level. As shown in Table 1, for power level 3 (PC3), the maximum transmit power is 23dBm; for power level 2 (PC2), the maximum transmit power is 26dBm; for power level 1.5 (PC1.5), the maximum transmit power is 29dBm, etc. Power levels such as PC2 and PC1.5 with a maximum transmit power exceeding 23dBm are generally referred to as high power levels.

Table 1 Power levels of terminals in frequency bands below 6 GHz

For a frequency band combination consisting of multiple frequency bands, similarly, the total transmit power when transmitting simultaneously also has a similar power level definition.

2. Transmitting power of the terminal in the millimeter wave frequency band

Typically, the millimeter wave operating frequency is above 10 GHz. The spatial propagation loss of electromagnetic waves in the millimeter wave frequency band is very large, resulting in limited coverage of electromagnetic wave signals. In order to overcome the large spatial loss, terminals generally use antenna arrays composed of multiple antenna elements to form narrow beams to transmit and receive signals in the millimeter wave frequency band. These narrow beams have relatively strong directivity, as shown in Figure 2A.

Currently, the maximum transmit power in a single frequency band is limited by parameters such as max peak EIRP (maximum beam peak intensity), max TRP (maximum spherical integral intensity), min peak EIRP (minimum beam peak intensity), and spherical coverage. As shown in Figure 2B below, the terminal can generate multiple beams in a certain frequency band (only one beam is working at the same time), and the requirements for its maximum transmit power are briefly introduced as follows:

(1) To avoid interference to other terminals in the communication direction, the maximum power allowed to be transmitted by the terminal in the direction of maximum transmit power (assuming it is beam 1 (Beam1)) cannot exceed max peak EIRP, that is, peak EIRP ₁ ≤ max Peak EIRP. Since the peak EIRP of Beam1 is greater than the peak EIRP of other beams, it means that other beams will also meet the max peak EIRP requirement. This indicator comes from the regulatory requirements of government regulatory agencies.

(2) In order to avoid interference to terminals in other directions, the total radiation power of the terminal radiation beam in all directions must not exceed max TRP. Assuming that the beam with the largest radiation power in all directions is Beam2, the sum of the radiation power of Beam2 in all directions TRP ₂ ≤ max TRP. Since the total radiation power TRP of Beam2 is greater than that of other beams, it means that other beams will also meet the max TRP requirement. This indicator comes from the regulatory requirements of government regulatory agencies.

(3) In order to ensure the uplink coverage capability of the terminal, the maximum power transmitted by the terminal in the direction of maximum transmission power (assuming Beam1) should at least meet the min peak EIRP requirement.

(4) In order to ensure the mobility and uplink coverage of the terminal, the statistical curve of the peak transmit power in all directions must be able to meet the spherical coverage requirement, that is, a certain percentage of the value on the Cumulative Distribution Function (CDF) curve must be higher than the limit requirement, as shown in Figure 2C.

As can be seen from the above content, the terminal's transmit power level is defined according to the frequency band or frequency band combination, mostly from the perspective of regulations or from the perspective of ensuring system performance. Generally speaking, from the perspective of improving system performance, most people hope that the terminal's transmit power can be as high as possible while meeting regulatory requirements. Therefore, high-power terminals, terminals that transmit in multiple frequency bands at the same time, and terminals that transmit multiple antenna panels (panels) in the same frequency band have appeared to improve the overall transmit power capability of the terminal. However, for the terminal, although transmitting with higher power or using multiple frequency bands or multiple panels to transmit at the same time can achieve the purpose of improving uplink coverage and throughput, the terminal's heating, power consumption, and radiation to the human body will deteriorate, making it impossible for the terminal to be in a high-power or multi-panel concurrent state for a long time, and its transmit power must be limited at a certain time. However, in the current mechanism, the terminal cannot inform the network of its limited transmission information and reasons, resulting in deviations in the network's control of the terminal's transmit power.

The embodiment of the present application proposes an indication method, and FIG3 is a schematic flow chart of an indication method 300 according to the embodiment of the present application. The method can be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

S310: The terminal device sends first information, where the first information includes information about maximum transmission power adjustment and/or limitation caused by the first problem of the terminal device.

For example, the terminal device may send first information to the network device to inform the network side of the information that its transmission power is limited, so as to facilitate the network side's control over the terminal.

In some embodiments, the first problem may include at least one of heat generation, power consumption, and electromagnetic radiation to the human body. In the following content, the above-mentioned first problem may also be referred to as a total power issue. The terminal device may send a first message to the base station to report to the base station an indication of a change in the maximum transmit power capability caused by heat generation, power consumption, electromagnetic radiation to the human body, etc., so that the base station can perform transmit power control according to the actual transmit power change reported by the terminal.

In one example, the first information includes at least one of the following:

The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem;

The adjusted maximum transmit power;

A power backoff value caused by the first problem, where the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power;

Power adjustment value for maximum transmit power.

In some embodiments, the terminal may report the adjustment and/or limitation of its maximum transmit power capability (such as the first information mentioned above) by means of a power headroom report (PHR), that is, the first information may be carried by the PHR. The first information may include at least one of the first indication information, the adjusted maximum transmit power, and the power backoff value caused by the first problem. The power backoff value caused by the first problem may be used to adjust and/or limit the configurable maximum transmit power (which may be represented by Pcmax) of the terminal device. By backing off the configurable maximum transmit power (represented by Pcmax) of the terminal device, the terminal may be allowed to back off its maximum transmit power when necessary, and the backoff value may not exceed the power backoff value caused by the first problem mentioned above. The backoff value will modify Pcmax and then be reflected in the PHR; therefore, under the condition that the terminal transmit power scheduled by the base station is fixed, the adjustment of Pcmax will cause the PHR to change, and the information may be transmitted to the base station. By reporting the first information with the help of the existing PHR reporting process, the signaling overhead in the maximum transmit power indication process can be saved.

The first information carries the first indication information and/or the power adjustment value of the maximum transmit power, which can further indicate to the base station the reason for the PHR adjustment of the terminal device.

The terminal device reports the transmit power adjustment information due to the first problem based on the PHR, and can report the transmit power capability adjustment information of the terminal together with other information to the base station, so that the base station can adjust the terminal transmit power according to the PHR of the terminal.

Existing PHR reporting conditions (such as periodic reporting or event-triggered reporting) may trigger the terminal to report whether it is due to the first question. The subject brings the transmission power adjustment information (power adjustment information reporting is optional), that is, triggers the terminal to report the first information through the PHR. For example, when the PHR reporting conditions are met, the terminal device sends the first information. For example, when the PHR reporting period is reached or a triggering event for PHR reporting occurs, the terminal device can report the PHR carrying the first information. This reporting method has little change to the PHR reporting process and is easy to implement.

In addition, when the terminal adjusts the transmit power due to the first problem, it may in turn trigger the reporting of the PHR and the first information. For example, when the terminal device adjusts and/or limits the maximum transmit power due to the first problem, the terminal device sends the first information. Alternatively, the embodiment of the present application may set a predetermined threshold. When the terminal device adjusts and/or limits the maximum transmit power due to the first problem, and the adjustment value of the maximum transmit power is greater than or equal to the predetermined threshold, the terminal device sends the first information. This method can avoid reporting the maximum transmit power adjustment information too frequently due to minor changes, thereby achieving the purpose of saving communication resources.

In some implementations, the terminal device may indicate the terminal's transmit power capability adjustment through dedicated signaling (such as radio resource control (RRC) signaling or media access control (MAC) control element (CE), or RRC terminal auxiliary information reporting. For example, the first information sent by the terminal device may be carried by dedicated signaling or terminal auxiliary information, and the dedicated signaling includes RRC signaling or MAC CE.

In the case of using dedicated signaling or terminal auxiliary information to carry the first information, the terminal device may periodically send the first information, such as periodically sending dedicated signaling or terminal auxiliary information that carries the first information. Alternatively, the terminal device may send the first information when the maximum transmission power is adjusted and/or limited due to the first problem; or when the terminal device adjusts and/or limits the maximum transmission power due to the first problem and the adjustment value of the maximum transmission power is greater than or equal to a predetermined threshold, the terminal device sends the first information.

Furthermore, the network side can set whether the terminal device has the ability to adjust the transmit power due to the first problem. For example, when the base station allows (enable) the terminal to adjust the transmit power for the first problem, the terminal can make corresponding adjustments; if the base station does not allow (disable) the terminal to adjust the transmit power for the first problem, the terminal cannot make corresponding adjustments. The specific implementation method of allowing (enable) or not allowing (disable) can be implemented by defining a timer, such as defining an enable/enable timer.

In one example, a terminal device receives an activation instruction of a first timer, and the activation instruction of the first timer is used to allow the terminal device to adjust the transmit power for a first problem. The first timer may be an enable timer; after receiving the activation instruction of the enable timer, the terminal device has the ability to send the first information to the base station; after the enable timer expires, the terminal device does not have the ability to send the first information to the base station.

In another example, the terminal device receives an activation instruction of a second timer, and the activation instruction of the second timer is used to disallow the terminal device to adjust the transmit power for the first problem. The second timer may be a disable/block timer; after receiving the activation instruction of the disable/block timer, the terminal device does not have the ability to send the first information to the base station; after the disable/block timer expires, the terminal device has the ability to send the first information to the base station.

The above-mentioned method of setting the terminal device's ability to adjust the transmission power due to the first problem is applicable to the transmission power adjustment method based on PHR, the transmission power adjustment method based on terminal indication information, and other transmission power adjustment methods.

Specific embodiments are introduced below for different situations.

When the terminal is in a high-power transmission state, or a multi-band concurrent state, or a multi-panel simultaneous working state in the millimeter wave band, there is a potential risk of excessive transmission power, excessive heating of the whole device, or excessive radiation to the human body. At this time, the terminal needs to limit its transmission power. However, there is currently no corresponding mechanism that allows the terminal to adjust this, which makes it difficult for the terminal to maintain its high power state in actual use, and the base station cannot know the actual situation of the current terminal, so it is impossible to adjust the terminal from the perspective of power control. This makes the terminal limit its transmission power capability to a relatively low capability in order to avoid the above problems and report it to the network; although this can solve problems such as power consumption, heating and human radiation, it cannot make the terminal performance reach the optimal level.

Therefore, the embodiment of the present application proposes a more appropriate solution. The terminal can transmit at high power or multiple panels. However, when the terminal has the above-mentioned heating, power consumption, electromagnetic radiation to the human body and other problems (hereinafter collectively referred to as Total power issue), the terminal can communicate with the network in time and temporarily limit its transmission power or the number of panels transmitted. When these problems disappear, the terminal can still restore the high power transmission or multi-panel transmission state. This will be discussed in detail below.

Embodiment 1:

This embodiment introduces a power transmission adjustment method based on PHR. PHR is a MAC CE for the terminal to report the available power margin to the network. It carries the maximum available transmission power information of the terminal, power margin information, etc. The terminal proposed in the embodiment of the present application can use PHR to report the adjustment of its maximum transmission power capability.

In the related technology, the calculation of the power margin PHR is based on the difference between Pcmax (the maximum configurable transmit power of the terminal on a carrier, or the configurable maximum transmit power of the terminal device) and the transmit power of the terminal scheduled by the base station on the carrier (denoted as Pschedule), that is, PHR = Pcmax-Pschedule. When the terminal needs to adjust its maximum transmit power capability, if the value of Pcmax can be adjusted, the power adjustment information can be reflected in the PHR information. Specifically, for the frequency bands below 6GHz and the millimeter wave frequency bands, there are the following different methods:

1. Improvement of Pcmax of a terminal on a carrier c (frequency point f) for frequency bands below 6 GHz

In the related art, the calculation method of Pcmax is shown in formula (1):

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c –ΔT _C,c ,(P _PowerClass –ΔP _PowerClass )–MAX(MAX(MPR _c +ΔMPR _c ,A-MPR _c )+ΔT _IB,c +ΔT _{C ,c} +ΔT _RxSRS ,P-MPR _c )} (1)

As can be seen from the above, the configurable maximum transmit power of the terminal device is usually determined by the power class capability (P _PowerClass ) of the terminal, the resource block (RB) resources scheduled by the base station and/or the modulation and coding scheme (MCS) configured, etc., wherein the RB resources scheduled by the base station and/or the configured MCS determine the power backoff MPR (which can be called the first power backoff value) and the additional power backoff AMPR (which can be called the second power backoff value). These factors that affect Pcmax currently do not include factors such as the aforementioned first problem of the terminal (such as the Total power issue). This is also where the present application is enhanced.

This embodiment introduces an additional power backoff value, such as the power backoff value caused by the first problem (such as the Total power issue) (hereinafter represented by HMPR). The power backoff value caused by the first problem (such as, recorded as HMPR) can be used to adjust and/or limit the configurable maximum transmit power (Pcmax) of the terminal device. For example, HMPR is defined as n dB, where n is a natural number, which means that when the terminal finds that the first problem (such as the Total power issue) exists, the terminal can use a power backoff of up to n dB to solve the problem.

In one example, the power backoff value (HMPR) caused by the first problem is used to determine a first factor, which is determined by at least one of the first power backoff value (such as MPR _c in the above formula (1)), the second power backoff value (such as A-MPR _c in the above formula (1)), the third power backoff value (such as P-MPR _c in the above formula (1)) and the power backoff value (HMPR) caused by the first problem; the first factor is used to reduce the configurable maximum transmit power (Pcmax) of the terminal device; wherein,

The first power backoff value or the second power backoff value is determined by RB resources scheduled by the base station and/or the configured MCS;

The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements.

In one example, the power backoff value caused by the first problem is used to determine the first factor, which may include:

The power backoff value (HMPR) caused by the first problem is used to determine the second factor, and the second factor is determined by at least one of the first power backoff value (such as MPR _c in the above formula (1)), the second power backoff value (such as A-MPR _c in the above formula (1)) and the power backoff value (HMPR) caused by the first problem, and the first factor is determined by the second factor and the third power backoff value (such as P-MPR _c in the above formula (1)).

It can be seen that the first factor can be the value determined by the first max calculation formula in the above formula (1), and the second factor can be the value determined by the second max calculation formula in the above formula (1).

Specifically, the second factor may be determined by the maximum value of the first power backoff value (such as MPR _c ), the second power backoff value (such as A-MPR _c ) and the power backoff value caused by the first problem (such as HMPR).

For example, the method for determining the maximum transmit power of the terminal device can be expressed by the following formula (2-1):

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c –ΔT _C,c ,(P _PowerClass –ΔP _PowerClass )–MAX(MAX(MPR _c +ΔMPR _c ,A-MPR _c ,HMPR)+ΔT _IB,c + ΔT _C,c +ΔT _RxSRS ,P-MPR _c )} (2-1)

Alternatively, the second factor may be determined by the maximum value of the sum of the first power backoff value (eg, MPR _c ) and the power backoff value caused by the first problem (eg, HMPR) and the sum of the second power backoff value (eg, A-MPR _c ) and the power backoff value caused by the first problem (eg, HMPR).

For example, the method for determining the maximum transmit power of the terminal device can be expressed by the following formula (2-2):

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c –ΔT _C,c ,(P _PowerClass –ΔP _PowerClass )–MAX(MAX(MPR _c +HMPR,A-MPR _c +HMPR)+ΔT _IB,c +ΔT _C,c +ΔT _RxSRS ,P-MPR _c )} (2-2)

Alternatively, the power backoff value caused by the first problem is used to determine the first factor, which may include: the first factor is greater than or equal to the power backoff value caused by the first problem.

For example, the method for determining the maximum transmit power of the terminal device can be expressed by the following formula (2-3):

P _{CMAX_L,f,c} ＝MIN{P _EMAX,c –ΔT _C,c ,(P _PowerClass –ΔP _PowerClass )–MAX(MAX(MPR _c ,A-MPR _c )+ΔT _IB,c +ΔT _C,c + ΔT _RxSRS ,P-MPR _c ,HMPR)} (2-3)

It can be seen that by modifying Pcmax in the above-mentioned ways, the terminal can be allowed to roll back its maximum transmit power when necessary, and the rollback value does not exceed the size of the HMPR. The rollback value will modify Pcmax and then be reflected in the PHR. In addition, since PHR = Pcmax-Pschedule, under the same Pschedule (terminal transmit power scheduled by the base station), the adjustment of Pcmax will cause the PHR to change, and this information can be transmitted to the base station.

2. Improvement of Pcmax of a terminal on a carrier c (frequency point f) for the millimeter wave frequency band

In the related art, the calculation of Pcmax is shown in formula (3):

P _Powerclass +P _IBE –MAX(MAX(MPR _f,c ,A-MPR _f,c ,)+ΔMB _P,n ,P-MPR _f,c )–MAX{T(MAX(MPR _f,c ,A- MPR _f,c )),T(P-MPR _f,c )} (3)

The transmission power adjustment method for the first problem (Total power issue) is similar to the method for frequency bands below 6 GHz. The difference is that the adjustment of the transmission power capability may be caused by the need for the terminal to reduce the number of transmission panels due to the first problem (Total power issue), such as changing from multi-panel concurrent transmission to a single panel transmission.

This embodiment introduces an additional power backoff value, such as the power backoff value caused by the first problem (such as the Total power issue) (hereinafter represented by HMPR). The power backoff value caused by the first problem (such as, recorded as HMPR) can be used to adjust and/or limit the configurable maximum transmit power (Pcmax) of the terminal device. For example, HMPR is defined as n dB, where n is a natural number, which means that when the terminal finds that the first problem (such as the Total power issue) exists, the terminal can use a power backoff of up to n dB to solve the problem.

In one example, the power backoff value (HMPR) caused by the first problem is used to determine a first factor, which is determined by at least one of the first power backoff value (such as MPR _f,c in the above formula (3)), the second power backoff value (such as A-MPR _f,c in the above formula (3)), the third power backoff value (such as P-MPR _f,c in the above formula (3)) and the power backoff value (HMPR) caused by the first problem; the first factor is used to reduce the configurable maximum transmit power (Pcmax) of the terminal device; wherein,

The first power backoff value or the second power backoff value is determined by RB resources scheduled by the base station and/or the configured MCS;

The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements.

In one example, the power backoff value caused by the first problem is used to determine the first factor, which may include:

The power backoff value (HMPR) caused by the first problem is used to determine the second factor, and the second factor is determined by at least one of the first power backoff value (such as MPR _f,c in the above formula (3)), the second power backoff value (such as A-MPR _f,c in the above formula (3)) and the power backoff value (HMPR) caused by the first problem, and the first factor is determined by the second factor and the third power backoff value (such as P-MPR _f,c in the above formula (3)).

It can be seen that the first factor can be the value determined by the first max calculation formula in the above formula (3), and the second factor can be the value determined by the second max calculation formula in the above formula (3).

Specifically, the second factor may be determined by the maximum value of the first power backoff value (eg, MPR _f,c ), the second power backoff value (eg, A-MPR _f,c ) and the power backoff value caused by the first problem (eg, HMPR).

For example, the method for determining the maximum transmit power of the terminal device can be expressed by the following formula (4-1):

P _Powerclass +P _IBE –MAX(MAX(MPR _f,c ,A-MPR _f,c ,HMPR)+ΔMB _P,n ,P-MPR _f,c )–MAX{T(MAX(MPR _f,c ,A -MPR _f,c ,)),T(P-MPR _f,c )} (4-1)

Alternatively, the second factor may be determined by the maximum value of the sum of the first power backoff value (eg, MPR _f,c ) and the power backoff value caused by the first problem (eg, HMPR), and the sum of the second power backoff value (eg, A-MPR _f,c ) and the power backoff value caused by the first problem (eg, HMPR).

For example, the method for determining the maximum transmit power of the terminal device can be expressed by the following formula (4-2):

P _Powerclass +P _IBE –MAX(MAX(MPR _f,c +HMPR,A-MPR _f,c +HMPR)+ΔMB _P,n ,P-MPR _f,c )–MAX{T(MAX(MPR _f,c ,A-MPR _f,c ,)),T(P-MPR _f,c )} (4-2)

Alternatively, the power backoff value caused by the first problem is used to determine the first factor, which may include: the first factor is greater than or equal to the power backoff value caused by the first problem.

For example, the method for determining the maximum transmit power of the terminal device can be expressed by the following formula (4-3):

P _Powerclass +P _IBE –MAX(MAX(MPR _f,c ,A-MPR _f,c ,)+ΔMB _P,n ,P-MPR _f,c ,HMPR)–MAX{T(MAX(MPR _f,c , A-MPR _f,c ,)),T(P-MPR _f,c )} (4-3)

By modifying Pcmax as described above, the terminal can be allowed to back off its maximum transmit power when necessary, and the backoff value does not exceed the size of the HMPR. The backoff value will modify Pcmax and then be reflected in the PHR. In addition, since PHR = Pcmax-Pschedule, under the same Pschedule (terminal transmit power scheduled by the base station), the adjustment of Pcmax will cause the PHR to change, and this information can be transmitted to the base station.

In addition, in some implementations, in order to further clarify the reason for the PHR adjustment of the terminal, an adjustment indication (such as the first indication information) of the maximum transmit power capability caused by the first problem (Total power issue) and/or the adjusted maximum transmit power and/or the power fallback value caused by the first problem (Total power issue) may be further introduced in the PHR report. This and the following content are applicable to the frequency bands below 6 GHz and the millimeter wave frequency bands.

Specifically, by taking a specific value as the adjustment indication of the maximum transmit power capability, the first indication information can be reported to report to the network that the first problem (Total power issue) has caused the adjustment or limitation of the maximum transmit power capability.

For example, setting the adjustment indication of the maximum transmit power capability to 0 or missing indicates that the terminal has no adjustment or limitation on the maximum transmit power capability due to the first problem (Total power issue); setting the adjustment indication of the maximum transmit power capability to 1 indicates that the terminal has no adjustment or limitation on the maximum transmit power capability due to the first problem (Total power issue).

When the terminal reports the adjusted maximum transmit power, the adjusted maximum transmit power can be reported to the base station by setting the adjusted maximum transmit power capability information to a specific value. For example, if the adjusted maximum transmit power of the terminal is XdBm, the maximum transmit power value can be reported.

When the terminal reports the power backoff value information caused by the first problem (Total power issue), the power backoff value can be reported to the base station by setting the backoff value information to a specific value. For example, the power backoff value is represented by the following Table 2. In addition to the method shown in Table 2, other representation methods can also be used, which are not listed here one by one.

Table 2

In one example, the power fallback value caused by the first indication information or the first problem can be carried by the first bit in the PHR. The adjusted maximum transmit power can be carried by the second bit in the PHR. As shown in Table 3 below:

table 3

As shown in Table 3, the adjusted maximum transmit power can be carried in bits 10-15 of the PHR, and the first indication information and/or the power backoff value caused by the first problem can be carried in one or more bits of bits 16-23 of the PHR. In the prior art, bits 10-15 of the PHR format carry the maximum transmit power without considering the first problem (Total power issue). In this embodiment, if one or more bits of bits 16-23 of the PHR format indicate that the first problem (Total power issue) has brought about an adjustment of the maximum transmit power capability, and/or indicate the power backoff value information brought about by the first problem (Total power issue), then the adjusted maximum transmit power caused by the first problem can be carried in bits 10-15 of the PHR format. The above method is only an example, and the embodiment of the present application may also use other bits to carry the first indication information, the adjusted maximum transmit power and/or the power backoff value brought about by the first problem.

In addition, existing PHR reporting conditions (such as periodic reporting or event-triggered reporting) may trigger the terminal to report whether it has caused transmission power adjustment information due to the first problem (Total power issue) (power adjustment information reporting is optional). When the terminal adjusts the transmission power due to the Total power issue, it may also trigger the reporting of PHR and corresponding information.

For example, when the terminal adjusts the maximum transmission power due to the first problem (Total power issue), the adjustment information is sent through PHR.

Alternatively, a threshold for the terminal's transmit power adjustment due to the first problem (Total power issue) may be defined; only when the adjustment value of the maximum transmit power caused by the first problem is greater than or equal to the threshold, reporting of the adjustment information is triggered; when the adjustment value is lower than the threshold, no reporting is required.

Furthermore, the ability of the base station to allow (enable) or not allow (disable) the terminal to adjust the transmit power due to the Total power issue can be introduced. For example, the terminal can only make corresponding adjustments when the base station allows (enable) the terminal to adjust the transmit power for the first issue (Total power issue); if the base station does not allow (disable) the terminal to adjust the transmit power for the first issue (Total power issue), the terminal cannot make corresponding adjustments. The specific implementation method of allowing (enable) or not allowing (disable) can be implemented by defining a timer, such as defining an enable/enable timer, which allows the terminal to adjust the transmit power for the first issue (Total power issue) when it is activated; or defining a disable/prevent timer, which does not allow the terminal to adjust the transmit power for the first issue (Total power issue) when it is activated.

In summary, based on the PHR reporting, the terminal brings the transmission power adjustment information due to the first problem (Total power issue), so that the terminal can inform the base station of the change in the maximum transmission power capability, thereby optimizing the power control of the base station.

Implementation 2:

This embodiment introduces the transmission power adjustment based on the terminal indication information. The transmission power capability adjustment of the terminal can also be indicated by dedicated signaling (RRC signaling or MAC CE) or RRC terminal auxiliary information reporting.

In this way, the maximum transmit power capability adjustment indication signaling can be introduced. In this embodiment, the TotalPowerConceptAdjustment signaling is used to indicate the adjustment of the maximum transmit power capability caused by the first problem (Total power issue). The signaling may only inform the base station that the terminal has adjusted the maximum transmit power capability due to the first problem (Total power issue), or it may include the adjusted maximum transmit power capability information, and/or power adjustment value information.

When the TotalPowerConceptAdjustment signaling indicates whether the terminal has adjusted the maximum transmit power capability due to the first problem (Total power issue), the terminal device can select different values of an information element (IE, Information Element) in the TotalPowerConceptAdjustment signaling to indicate whether the maximum transmit power capability of the current terminal is restricted or not:

For example, the possible value of the IE is enable or disable, which respectively indicates that the maximum transmit power capability of the current terminal is restricted or unrestricted.

For another example, the possible value of the IE is enable, then when the IE exists, it indicates that the maximum transmit power capability limit of the terminal is activated; When this IE is missing, it indicates that the maximum transmit power capability limit of the terminal is not activated.

When the TotalPowerConceptAdjustment signaling indicates the maximum transmit power capability after the power adjustment caused by the first problem (Total power issue), the terminal device can use another IE in the TotalPowerConceptAdjustment signaling to report the adjusted maximum transmit power capability value. For example, the possible value of the IE is {23dBm, 26dBm, 29dBm}, which means that the adjusted maximum transmit power is 23dBm, 26dBm and 29dBm respectively.

When the TotalPowerConceptAdjustment signaling indicates the power adjustment value caused by the first problem (Total power issue), the terminal device can use another IE in the TotalPowerConceptAdjustment signaling to report the power adjustment value. For example, the possible values of the IE are {-1dB,-2dB,-3dB,-4dB,-5dB,1dB,2dB,3dB,4dB,5dB}, which respectively indicate that the transmit power is reduced by 1dB, reduced by 2dB, reduced by 3dB, reduced by 4dB, reduced by 5dB, increased by 1dB, increased by 2dB, increased by 3dB, increased by 4dB and 5dB. Among the possible values of the IE, a positive value indicates a power increase value, and a negative value indicates a power decrease value.

Similar to the relevant contents of the embodiment, in this embodiment, the terminal device can send adjustment information when the maximum transmit power is adjusted due to the first problem (Total power issue). Alternatively, a threshold for the terminal to adjust the transmit power due to the first problem (Total power issue) can also be defined. Only when the adjustment value of the maximum transmit power caused by the first problem is greater than or equal to the threshold, the reporting of the adjustment information will be triggered. When the adjustment value is lower than the threshold, no reporting is required.

Furthermore, the ability of the base station to allow (enable) or not allow (disable) the terminal to adjust the transmit power due to the Total power issue can be introduced. For example, the terminal can only make corresponding adjustments when the base station allows (enable) the terminal to adjust the transmit power for the first issue (Total power issue); if the base station does not allow (disable) the terminal to adjust the transmit power for the first issue (Total power issue), the terminal cannot make corresponding adjustments. The specific implementation method of allowing (enable) or not allowing (disable) can be implemented by defining a timer, such as defining an enable/enable timer, which allows the terminal to adjust the transmit power for the first issue (Total power issue) when it is activated; or defining a disable/prevent timer, which does not allow the terminal to adjust the transmit power for the first issue (Total power issue) when it is activated.

In summary, by reporting the transmission power adjustment information of the terminal due to the first problem (Total power issue) based on dedicated signaling or terminal auxiliary information, the terminal can inform the base station of the change in the maximum transmission power capability, thereby optimizing the base station power control.

The embodiment of the present application further proposes an indication method. FIG. 4 is a schematic flow chart of an indication method 400 according to the embodiment of the present application, including:

S410: The network device receives first information, where the first information includes information about maximum transmission power adjustment and/or limitation caused by a first problem on the terminal device.

In some embodiments, the first problem includes at least one of generating heat, consuming electricity, and causing electromagnetic radiation to a human body.

By receiving the first information, the network device can receive information reported by the terminal device regarding the maximum transmit power adjustment and/or limitation caused by the first problem, so as to optimize power control.

In some implementations, the first information includes at least one of the following:

The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem;

The adjusted maximum transmit power;

A power backoff value caused by the first problem, which causes adjustment and/or limitation of the maximum transmit power;

Power adjustment value for the maximum transmit power.

In some implementations, the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, including:

The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device.

In some implementations, the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, including:

The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value, and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein,

The first power backoff value or the second power backoff value is determined by RB resources scheduled by the base station and/or the configured MCS;

The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements.

In some implementations, the power backoff value caused by the first problem is used to determine the first factor, including:

The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by the first power backoff value, the second power backoff value and at least one of the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value.

In some implementations, the second factor is determined by a maximum value among the first power backoff value, the second power backoff value, and a power backoff value caused by the first problem.

In some implementations, the second factor is a sum of the first power backoff value and the power backoff value caused by the first problem, and the The maximum value of the sum of the second power backoff value and the power backoff value caused by the first problem is determined.

In some implementations, the power backoff value caused by the first problem is used to determine the first factor, including:

The first factor is greater than or equal to the power backoff value caused by the first problem.

In some implementations, the first information is carried by the PHR.

By receiving the first information carried by the PHR, the transmission power capability adjustment information of the terminal can be received together with other information, thereby saving communication resources.

In some implementations, the first indication information or the power backoff value caused by the first problem is carried by the first bit in the PHR.

In some implementations, the adjusted maximum transmit power is carried by the second bit in the PHR.

In some implementations, the first information is carried by dedicated signaling or terminal assistance information.

In some embodiments, the dedicated signaling includes RRC signaling or MAC CE.

In some implementations, it also includes: the network device sending an activation instruction for a first timer, where the activation instruction for the first timer is used to allow the terminal device to adjust the transmission power for the first problem.

In some implementations, it also includes: the network device sending an activation instruction for a second timer, where the activation instruction for the second timer is used to not allow the terminal device to adjust the transmission power for the first problem.

By sending activation instructions for relevant timers to the terminal device, the network device can control whether the terminal device has the ability to adjust the transmission power for the first issue (Total power issue).

The embodiment of the present application further provides a terminal device. FIG5 is a schematic diagram of the structure of a terminal device 500 according to the embodiment of the present application, including:

The first sending module 510 is used to send first information, where the first information includes information about the maximum transmission power adjustment and/or limitation caused by the first problem of the terminal device.

In some embodiments, the first problem includes at least one of generating heat, consuming electricity, and causing electromagnetic radiation to a human body.

In some implementations, the first information includes at least one of the following:

The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem;

The adjusted maximum transmit power;

A power backoff value caused by the first problem, which causes adjustment and/or limitation of the maximum transmit power;

Power adjustment value for the maximum transmit power.

In some implementations, the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, including:

The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device.

In some implementations, the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, including:

The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value, and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein,

The first power backoff value or the second power backoff value is determined by RB resources scheduled by the base station and/or the configured MCS;

The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements.

In some implementations, the power backoff value caused by the first problem is used to determine the first factor, including:

The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by the first power backoff value, the second power backoff value and at least one of the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value.

In some implementations, the second factor is determined by a maximum value among the first power backoff value, the second power backoff value, and a power backoff value caused by the first problem.

In some implementations, the second factor is determined by a maximum value of a sum of the first power backoff value and the power backoff value caused by the first problem, and a sum of the second power backoff value and the power backoff value caused by the first problem.

In some implementations, the power backoff value caused by the first problem is used to determine the first factor, including:

The first factor is greater than or equal to the power backoff value caused by the first problem.

In some implementations, the first information is carried by the PHR.

In some implementations, the first indication information or the power backoff value caused by the first problem is carried by the first bit in the PHR.

In some implementations, the adjusted maximum transmit power is carried by the second bit in the PHR.

In some implementations, the first sending module 510 is configured to send the first information when a PHR reporting condition is met.

In some implementations, the first information is carried by dedicated signaling or terminal assistance information.

In some embodiments, the dedicated signaling includes RRC signaling or MAC CE.

In some implementations, the first sending module 510 is used to periodically send the first information.

In some embodiments, the first sending module 510 is used to send the first information when the terminal device adjusts and/or limits the maximum transmission power due to the first problem.

In some embodiments, the first sending module 510 is used to send the first information when the terminal device adjusts and/or limits the maximum transmission power due to the first problem and the adjustment value of the maximum transmission power is greater than or equal to a predetermined threshold.

FIG6 is a schematic diagram of the structure of a terminal device 600 according to an embodiment of the present application. The terminal device 600 includes one or more features of the above-mentioned terminal device 500 embodiment. In a possible implementation, in the embodiment of the present application, it also includes:

The first receiving module 620 is used to receive an activation instruction of a first timer, where the activation instruction of the first timer is used to allow the terminal device to adjust the transmission power for the first problem.

In some embodiments, it further comprises:

The second receiving module 630 is used to receive an activation instruction of a second timer, where the activation instruction of the second timer is used to not allow the terminal device to adjust the transmission power for the first problem.

It should be understood that the above and other operations and/or functions of the modules in the terminal device according to the embodiment of the present application are respectively for implementing the corresponding processes of the terminal device in the method 300 of Figure 3, and for the sake of brevity, they are not repeated here.

The embodiment of the present application further provides a network device. FIG. 7 is a schematic diagram of the structure of a network device 700 according to the embodiment of the present application, including:

The third receiving module 710 is used to receive first information, where the first information includes information about the maximum transmission power adjustment and/or limitation caused by the first problem of the terminal device.

In some embodiments, the first problem includes at least one of generating heat, consuming electricity, and causing electromagnetic radiation to a human body.

In some implementations, the first information includes at least one of the following:

The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem;

The adjusted maximum transmit power;

A power backoff value caused by the first problem, which causes adjustment and/or limitation of the maximum transmit power;

Power adjustment value for maximum transmit power.

In some implementations, the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, including:

The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device.

In some implementations, the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, including:

The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value, and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein,

The first power backoff value or the second power backoff value is determined by RB resources scheduled by the base station and/or the configured MCS;

The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements.

In some implementations, the power backoff value caused by the first problem is used to determine the first factor, including:

The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by the first power backoff value, the second power backoff value and at least one of the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value.

In some implementations, the second factor is determined by a maximum value among the first power backoff value, the second power backoff value, and a power backoff value caused by the first problem.

In some implementations, the second factor is determined by a maximum value of a sum of the first power backoff value and the power backoff value caused by the first problem, and a sum of the second power backoff value and the power backoff value caused by the first problem.

In some implementations, the power backoff value caused by the first problem is used to determine the first factor, including:

The first factor is greater than or equal to the power backoff value caused by the first problem.

In some implementations, the first information is carried by the PHR.

In some implementations, the first indication information or the power backoff value caused by the first problem is carried by the first bit in the PHR.

In some implementations, the adjusted maximum transmit power is carried by the second bit in the PHR.

In some implementations, the first information is carried by dedicated signaling or terminal assistance information.

In some embodiments, the dedicated signaling includes RRC signaling or MAC CE.

FIG8 is a schematic diagram of the structure of a network device 800 according to an embodiment of the present application. The network device 800 includes one or more features of the above-mentioned network device 700 embodiment. In a possible implementation, in the embodiment of the present application, it also includes:

The second sending module 820 is used to send an activation instruction of the first timer, and the activation instruction of the first timer is used to allow the terminal device to adjust the transmission power for the first problem.

In some embodiments, it further comprises:

The third sending module 830 is used to send an activation instruction for the second timer, where the activation instruction for the second timer is used to not allow the terminal device to adjust the transmission power for the first problem.

It should be understood that the above and other operations and/or functions of the modules in the network device according to the embodiment of the present application are respectively for implementing the corresponding processes of the network device in the method 400 of Figure 4, and for the sake of brevity, they are not repeated here.

It should be noted that the functions described in the various modules (submodules, units or components, etc.) in the communication device of the embodiment of the present application can be implemented by different modules (submodules, units or components, etc.) or by the same module (submodules, units or components, etc.). For example, the first receiving module and the second receiving module can be different modules or the same module, and both can implement their corresponding functions in the embodiment of the present application. In addition, the sending module and the receiving module in the embodiment of the present application can be implemented by the transceiver of the device, and some or all of the remaining modules can be implemented by the processor of the device.

Fig. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application. The communication device 900 shown in Fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

In some implementations, as shown in Fig. 9, the communication device 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the communication device in the embodiment of the present application.

The memory 920 may be a separate device independent of the processor 910 , or may be integrated into the processor 910 .

In some embodiments, as shown in FIG. 9 , the communication device 900 may further include a transceiver 930 , and the processor 910 may control the transceiver 930 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include an antenna, and the number of the antennas may be one or more.

In some implementations, the communication device 900 may be the communication device of an embodiment of the present application, and the communication device 900 may implement the corresponding processes implemented by the communication device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

Fig. 10 is a schematic structural diagram of a chip 1000 according to an embodiment of the present application. The chip 1000 shown in Fig. 10 includes a processor 1010, and the processor 1010 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

In some implementations, as shown in FIG10 , the chip 1000 may further include a memory 1020. The processor 1010 may call and run a computer program from the memory 1020 to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device independent of the processor 1010 , or may be integrated into the processor 1010 .

In some implementations, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

In some implementations, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

In some embodiments, the chip can be applied to the communication equipment in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, 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. The volatile memory may be a random access memory (RAM).

It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (77)

A method of indicating, comprising: The terminal device sends first information, wherein the first information includes information about the maximum transmission power adjustment and/or limitation caused by the first problem of the terminal device. The method according to claim 1, wherein the first problem includes at least one of heat generation, power consumption, and electromagnetic radiation to a human body. The method according to claim 1 or 2, wherein the first information includes at least one of the following: The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem; The adjusted maximum transmit power; A power backoff value caused by the first problem, the power backoff value caused by the first problem causing adjustment and/or limitation on the maximum transmit power; Power adjustment value for maximum transmit power. The method according to claim 3, wherein the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, comprising: The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device. The method according to claim 4, wherein the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, comprising: The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein, The first power backoff value or the second power backoff value is determined by a resource block RB resource scheduled by the base station and/or a configured modulation and coding scheme MCS; The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements. The method according to claim 5, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by at least one of the first power backoff value, the second power backoff value and the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value. The method according to claim 6, wherein the second factor is determined by a maximum value among the first power backoff value, the second power backoff value, and a power backoff value caused by the first problem. The method according to claim 6, wherein the second factor is determined by the maximum value of the sum of the first power backoff value and the power backoff value caused by the first problem, and the sum of the second power backoff value and the power backoff value caused by the first problem. The method according to claim 5, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The first factor is greater than or equal to a power backoff value caused by the first problem. The method according to any one of claims 3 to 9, wherein the first information is carried by a power headroom report PHR. The method according to claim 10, wherein the first indication information or the power backoff value caused by the first problem is carried by the first bit in the PHR. The method according to claim 10, wherein the adjusted maximum transmit power is carried by a second bit in the PHR. The method according to any one of claims 10 to 12, wherein the terminal device sending the first information comprises: When the PHR reporting conditions are met, the terminal device sends the first information. The method according to any one of claims 1 to 9, wherein the first information is carried by dedicated signaling or terminal assistance information. The method according to claim 14, wherein the dedicated signaling comprises radio resource control (RRC) signaling or media access control (MAC) control element (CE). The method according to any one of claims 1-15, wherein the terminal device sending the first information comprises: the terminal device periodically sending the first information. The method according to any one of claims 1 to 15, wherein the terminal device sending the first information comprises: In case the terminal device adjusts and/or limits the maximum transmission power due to the first problem, the terminal device sends first information. The method according to any one of claims 1 to 15, wherein the terminal device sending the first information comprises: In a case where the terminal device adjusts and/or limits the maximum transmit power due to the first problem, and the adjustment value of the maximum transmit power is greater than or equal to a predetermined threshold, the terminal device sends first information. The method according to any one of claims 1 to 18, further comprising: The terminal device receives an activation instruction of a first timer, where the activation instruction of the first timer is used to allow the terminal device to adjust the transmission power for the first problem. The method according to any one of claims 1 to 18, further comprising: The terminal device receives an activation instruction of a second timer, where the activation instruction of the second timer is used to not allow the terminal device to adjust the transmission power for the first problem. A method of indicating, comprising: The network device receives first information, wherein the first information includes information that the maximum transmission power of the terminal device is adjusted and/or limited due to a first problem. The method according to claim 21, wherein the first problem includes at least one of heat generation, power consumption, and electromagnetic radiation to a human body. The method according to claim 21 or 22, wherein the first information includes at least one of the following: The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem; The adjusted maximum transmit power; A power backoff value caused by the first problem, the power backoff value caused by the first problem causing adjustment and/or limitation on the maximum transmit power; Power adjustment value for maximum transmit power. The method according to claim 23, wherein the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, comprising: The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device. The method according to claim 24, wherein the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, comprising: The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein, The first power backoff value or the second power backoff value is determined by a resource block RB resource scheduled by the base station and/or a configured modulation and coding scheme MCS; The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements. The method according to claim 25, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by at least one of the first power backoff value, the second power backoff value and the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value. The method according to claim 26, wherein the second factor is determined by a maximum value of the first power backoff value, the second power backoff value, and a power backoff value caused by the first problem. The method according to claim 26, wherein the second factor is determined by the maximum value of the sum of the first power backoff value and the power backoff value caused by the first problem, and the sum of the second power backoff value and the power backoff value caused by the first problem. The method according to claim 25, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The first factor is greater than or equal to a power backoff value caused by the first problem. The method according to any one of claims 23 to 29, wherein the first information is carried by a power headroom report PHR. The method according to claim 30, wherein the power backoff value caused by the first indication information or the first problem is carried by the first bit in the PHR. The method of claim 30, wherein the adjusted maximum transmit power is carried by a second bit in the PHR. The method according to any one of claims 21 to 29, wherein the first information is carried by dedicated signaling or terminal assistance information. The method according to claim 33, wherein the dedicated signaling includes radio resource control RRC signaling or media access control MAC control element CE. The method according to any one of claims 21 to 34, further comprising: The network device sends an activation instruction for a first timer, where the activation instruction for the first timer is used to allow the terminal device to adjust the transmission power for the first problem. The method according to any one of claims 21 to 34, further comprising: The network device sends an activation instruction for a second timer, wherein the activation instruction for the second timer is used to not allow the terminal device to Transmit power adjustment for the first problem. A terminal device, comprising: The first sending module is used to send first information, where the first information includes information about the maximum transmission power adjustment and/or limitation caused by the first problem of the terminal device. The terminal device according to claim 37, wherein the first problem includes at least one of heat generation, power consumption, and electromagnetic radiation to a human body. The terminal device according to claim 37 or 38, wherein the first information includes at least one of the following: The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem; The adjusted maximum transmit power; A power backoff value caused by the first problem, the power backoff value caused by the first problem causing adjustment and/or limitation on the maximum transmit power; Power adjustment value for maximum transmit power. The terminal device according to claim 39, wherein the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, including: The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device. The terminal device according to claim 40, wherein the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, including: The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein, The first power backoff value or the second power backoff value is determined by a resource block RB resource scheduled by the base station and/or a configured modulation and coding scheme MCS; The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements. The terminal device according to claim 41, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by at least one of the first power backoff value, the second power backoff value and the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value. The terminal device according to claim 42, wherein the second factor is determined by the maximum value of the first power backoff value, the second power backoff value and the power backoff value caused by the first problem. The terminal device according to claim 42, wherein the second factor is determined by the maximum value of the sum of the first power backoff value and the power backoff value caused by the first problem, and the sum of the second power backoff value and the power backoff value caused by the first problem. The terminal device according to claim 41, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The first factor is greater than or equal to a power backoff value caused by the first problem. A terminal device according to any one of claims 39-45, wherein the first information is carried by a power headroom report PHR. The terminal device according to claim 46, wherein the power backoff value caused by the first indication information or the first problem is carried by the first bit in the PHR. The terminal device according to claim 46, wherein the adjusted maximum transmit power is carried by a second bit in the PHR. The terminal device according to any one of claims 46-48, wherein the first sending module is used to send the first information when the PHR reporting condition is met. The terminal device according to any one of claims 37-45, wherein the first information is carried by dedicated signaling or terminal auxiliary information. The terminal device according to claim 50, wherein the dedicated signaling includes radio resource control RRC signaling or media access control MAC control unit CE. The terminal device according to any one of claims 37-51, wherein the first sending module is used to periodically send the first information. A terminal device according to any one of claims 37-51, wherein the first sending module is used to send the first information when the terminal device adjusts and/or limits the maximum transmission power due to the first problem. The terminal device according to any one of claims 37 to 51, wherein the first sending module is used to adjust and/or limit the maximum transmission power of the terminal device due to the first problem, and the adjustment value of the maximum transmission power is greater than or equal to a predetermined threshold. In this case, the first message is sent. The terminal device according to any one of claims 37 to 54, further comprising: The first receiving module is used to receive an activation instruction of a first timer, where the activation instruction of the first timer is used to allow the terminal device to adjust the transmission power for the first problem. The terminal device according to any one of claims 37 to 54, further comprising: The second receiving module is used to receive an activation instruction of a second timer, and the activation instruction of the second timer is used to not allow the terminal device to adjust the transmission power for the first problem. A network device, comprising: The third receiving module is used to receive first information, where the first information includes information about the maximum transmission power adjustment and/or limitation caused by the first problem of the terminal device. The network device according to claim 57, wherein the first problem includes at least one of heat generation, power consumption, and electromagnetic radiation to a human body. The network device according to claim 57 or 58, wherein the first information includes at least one of the following: The first indication information is used to indicate whether the maximum transmit power of the terminal device is adjusted and/or limited due to the first problem; The adjusted maximum transmit power; A power backoff value caused by the first problem, the power backoff value caused by the first problem causing adjustment and/or limitation on the maximum transmit power; Power adjustment value for maximum transmit power. The network device according to claim 59, wherein the power backoff value caused by the first problem causes adjustment and/or limitation on the maximum transmit power, comprising: The power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmission power of the terminal device. The network device according to claim 60, wherein the power backoff value caused by the first problem is used to adjust and/or limit the configurable maximum transmit power of the terminal device, including: The power backoff value caused by the first problem is used to determine a first factor, and the first factor is determined by at least one of the first power backoff value, the second power backoff value, the third power backoff value and the power backoff value caused by the first problem; the first factor is used to reduce the configurable maximum transmit power of the terminal device; wherein, The first power backoff value or the second power backoff value is determined by a resource block RB resource scheduled by the base station and/or a configured modulation and coding scheme MCS; The third power back-off value includes a power back-off value of the terminal device to meet human radiation safety, useless emission and/or self-interference requirements. The network device according to claim 61, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The power backoff value caused by the first problem is used to determine a second factor, the second factor is determined by at least one of the first power backoff value, the second power backoff value and the power backoff value caused by the first problem, and the first factor is determined by the second factor and the third power backoff value. The network device according to claim 62, wherein the second factor is determined by a maximum value of the first power backoff value, the second power backoff value, and a power backoff value caused by the first problem. The network device according to claim 62, wherein the second factor is determined by the maximum value of the sum of the first power backoff value and the power backoff value caused by the first problem, and the sum of the second power backoff value and the power backoff value caused by the first problem. The network device according to claim 61, wherein the power backoff value caused by the first problem is used to determine the first factor, comprising: The first factor is greater than or equal to a power backoff value caused by the first problem. The network device according to any one of claims 59-65, wherein the first information is carried by a power headroom report PHR. The network device according to claim 66, wherein the first indication information or the power backoff value caused by the first problem is carried by the first bit in the PHR. The network device of claim 66, wherein the adjusted maximum transmit power is carried by a second bit in the PHR. The network device according to any one of claims 57-65, wherein the first information is carried by dedicated signaling or terminal auxiliary information. The network device according to claim 69, wherein the dedicated signaling includes radio resource control (RRC) signaling or media access control (MAC) control element (CE). The network device according to any one of claims 57 to 70, further comprising: The second sending module is used to send an activation instruction of the first timer, wherein the activation instruction of the first timer is used to allow the terminal device to Perform transmit power adjustment for the first problem. The network device according to any one of claims 57 to 70, further comprising: The third sending module is used to send an activation instruction for a second timer, where the activation instruction for the second timer is used to not allow the terminal device to adjust the transmission power for the first problem. A communication device comprises: a processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory and control the transceiver to execute the method as described in any one of claims 1 to 20 or 21 to 36. A chip, comprising: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as described in any one of claims 1 to 20 or 21 to 36. A computer-readable storage medium for storing a computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 20 or 21 to 36. A computer program product comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method according to any one of claims 1 to 20 or 21 to 36. A computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 20 or 21 to 36.