CN114449637B

CN114449637B - Terminal power control method and device

Info

Publication number: CN114449637B
Application number: CN202210277946.7A
Authority: CN
Inventors: 王鑫; 王书元
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2023-04-28
Anticipated expiration: 2042-03-21
Also published as: CN114449637A

Abstract

The application discloses a power control method and device of a terminal, relates to the technical field of wireless communication, and is used for optimizing the power control problem of a single-radio-frequency multi-card terminal in a non-orthogonal access scene. When all SIM cards are in RRC-IDLE or RRC-INACTIVE, determining at least one power and residence time of each power according to channel environment parameters and pre-allocation power of each SIM card; switching between at least one power according to the residence time at each power; when the SIM card is in RRC-CONNECTED, determining that the residence time of the pre-allocated power corresponding to the SIM card in RRC-CONNECTED is larger than the residence time of the pre-allocated power corresponding to the rest SIM cards; switching between pre-allocated power according to the residence time at each pre-allocated power. The method and the device can meet the requirements of different cards on the transmitting power, and simultaneously reduce the interference to the channel environment of other terminals as much as possible.

Description

Terminal power control method and device

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for controlling power of a terminal.

Background

With the access of mobile internet mass terminals, mobile data traffic is increased explosively, and the traditional wireless network based on orthogonal multiple access (orthogonal multiple access, OMA) cannot meet the requirements of high spectrum efficiency and mass connection because of the limitation of time slots and frequency resources, while in the non-orthogonal multiple access (non-orthogonal multiple access, NOMA) scenario, a base station can improve the time slots and frequency resource utilization rate by distributing different transmission powers for a plurality of users using the same time slots and frequency resources.

For a single-radio-frequency multi-card terminal accessed by NOMA, the power allocated by different subscriber identification (subscriber identity module, SIM) cards may be different, in the prior art, by adding radio-frequency hardware on the terminal side, the different SIM cards can respectively transmit and receive with the respective required power, but the method has high cost and cannot be realized for the stock single-radio-frequency multi-card terminal; in addition, each SIM card can use the same power by determining a fixed power value, but if the power is lower, the SIM card with stronger channel interference can cause the problems of high error rate, reduced signal-to-noise ratio and the like; if higher power is used, it can cause interference to the channel environment of other users.

Disclosure of Invention

The application provides a power control method and device of a terminal, which are used for optimizing the power control problem of a single-radio-frequency multi-card terminal in a non-orthogonal access scene on the premise of not adding hardware for the terminal.

In order to achieve the above purpose, the following technical scheme is adopted in the application.

In a first aspect, the present application provides a power control method of a terminal, including: respectively acquiring pre-allocation power of each SIM card; when all the SIM cards are in a wireless resource control (radio resource control, RRC) IDLE state (IDLE) or a wireless resource control (radio resource control, RRC) INACTIVE state (INACTIVE), determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal is greater than a preset value according to the channel environment parameters corresponding to each SIM card _Prediction The method comprises the steps of carrying out a first treatment on the surface of the According to P _Prediction Determining at least one power and a residence time at each power with the pre-allocated power for each SIM card; switching between the at least one power according to the residence time at each power; determining a residence time of the pre-allocated power at each of the pre-allocated power when the SIM cards are in a radio resource control (radio resource control, RRC) CONNECTED state (CONNECTED), wherein the residence time of the pre-allocated power corresponding to the SIM cards at RRC-CONNECTED is greater than the residence time of the pre-allocated power corresponding to the remaining SIM cards; switching between pre-allocated power according to the residence time at each pre-allocated power.

In the method, the preallocated power of each SIM card of the terminal is obtained for the single-radio frequency multi-card terminal under the non-orthogonal access scene, and the terminal is controlled to switch between different powers according to the states (in RRC-IDLE or RRC-INACTIVE or in RRC-CONNECTED) of all the SIM cards of the terminal. When all SIM cards of the terminal are in RRC-IDLE or RRC-INACTIVE, the power required by the terminal is correspondingly predicted according to the channel environment of each SIM card, the switching of the terminal between at least one power and the residence time of each power are respectively determined according to the relation between the predicted power and the pre-allocated power of each SIM card, the requirements of different cards on the transmitting power can be considered, and the interference to the channel environment of other terminals is reduced as much as possible. When the SIM card is in RRC-CONNECTED, the power of the terminal is determined to stay longer in the pre-allocation power of the SIM card in RRC-CONNECTED, so that the quality of service performed by the terminal in a CONNECTED state can be ensured.

In one possible implementation, when the SIM card is in RRC-CONNECTED, the method further includes: if the pre-allocation power of the SIM card in RRC-CONNECTED is smaller than that of the other SIM cards in RRC-IDLE or RRC-INACTIVE, the frequency band is increased for the other SIM cards in RRC-IDLE or RRC-INACTIVE when the terminal is switched to the pre-allocation power of the SIM card in RRC-CONNECTED.

In the implementation manner, the preassigned power of the SIM card in RRC-CONNECTED is smaller than the preassigned power of other SIM cards, and the residence time of the terminal in the smaller power can affect the paging, monitoring and other services of other SIM cards with larger preassigned power, so that when the terminal resides in the smaller power, in order to compensate the shortages of time slots and power domains of other SIM cards with preassigned power larger than the card, the frequency band is increased for other SIM cards, and the paging and monitoring communication quality of other SIM cards can be ensured.

In one possible implementation, the at least two SIM cards include a first SIM card and a second SIM card; determining the minimum receiving and transmitting power P of the terminal when the signal strength of the terminal is greater than a preset value according to the channel environment parameters corresponding to each SIM card _Prediction Comprising: inputting channel environment parameters currently corresponding to the first SIM card and/or the second SIM card to an input node of a neural network, and determining P _Prediction 。

Specifically, if the public land mobile network PLMN identifiers of the first SIM card and the second SIM card are the same, it indicates that the channel environments corresponding to the first SIM card and the second SIM card are the same, and then the current corresponding channel environment parameters of any SIM card (the first SIM card or the second SIM card) may be input to an input node of the preset neural network, and P is determined _Prediction 。

If the PLMN identifications of the first SIM card and the second SIM card are different, indicating that the first SIM card and the second SIM card belong to different operators and the corresponding channel environments are different, thenThe current channel environment parameters of the first SIM card are input to an input node of a neural network corresponding to the first SIM card, and the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the first SIM card is larger than a preset value is determined _{1 prediction} The method comprises the steps of carrying out a first treatment on the surface of the Inputting the current channel environment parameters of the second SIM card to an input node of a neural network corresponding to the second SIM card, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the second SIM card is greater than a preset value _{2 prediction} The method comprises the steps of carrying out a first treatment on the surface of the Will P _{1 prediction} And P _{2 prediction} As the lowest transmit-receive power P of the terminal when the signal strength of the terminal is greater than the preset value _Prediction 。

The terminal comprises a first SIM card and a second SIM card, wherein the pre-allocation power of the first SIM card is P ₁ The preallocated power of the second SIM card is P ₂ For example, in determining P _Prediction After that, according to P _Prediction And P ₁ And P ₂ The scheme for determining the power of terminal switching is as follows:

in one possible implementation, if P _Prediction <P ₁ And P is _Prediction <P ₂ Then determine at least one power as P ₁ 、P ₂ The residence time of each power is a preset duration; if P ₁ <P _Prediction <P ₂ Then determine at least one power as P ₁ X intermediate powers, P ₂ Wherein the value of X intermediate powers is greater than P ₁ Less than P ₂ And the average value of X intermediate powers should be greater than P ₁ And P ₂ The residence time at each power is a preset duration; x is an integer greater than or equal to 1; if P _Prediction >P ₁ And P is _Prediction >P ₂ Then determine at least one power as P ₁ 、P ₂ Terminal at P ₁ 、P ₂ The larger power dwell time is greater than at the smaller power dwell time.

In this implementation, according to P _Prediction The power of the terminal and the residence time at each power are adjusted in accordance with the magnitude of the pre-allocated power for each SIM card. If P _Prediction <P ₁ And P is _Prediction <P ₂ Indicating P ₁ 、P ₂ All can meet the power requirement, then the pre-distribution power P of the power of the terminal in the SIM card is determined ₁ 、P ₂ And switching is performed between the two. If P ₁ <P _Prediction <P ₂ And X intermediate powers are added between the minimum pre-allocation power and the maximum pre-allocation power, and the power is switched rapidly, so that the residence time of the minimum pre-allocation power or the maximum pre-allocation power can be reduced, the requirements of different cards on the transmitting power can be considered, and the interference to the channel environments of other terminals due to larger power can be reduced as much as possible. If P _Prediction >P ₁ And P is _Prediction >P ₂ Determining that the terminal resides at a greater power for a longer period of time than at a lesser power may result in better signal quality for each card.

In a second aspect, the present application provides a power control apparatus of a terminal, the apparatus including a processing unit. A processing unit, configured to perform the method according to the first aspect or any one of the possible implementation manners of the first aspect.

In a third aspect, the present application provides a terminal comprising a memory and a processor. The memory is coupled to the processor. The memory is used to store computer instructions. When the processor executes the computer instructions, the terminal performs the method as described in any one of the possible implementations of the first aspect to the first aspect.

In a fourth aspect, the present application provides a computer readable storage medium comprising computer instructions which, when run in a terminal, cause the terminal to perform a method as described in any one of the possible implementations of the first aspect to the first aspect.

In a fifth aspect, the present application provides a computer program product comprising computer instructions which, when run on a terminal, cause the terminal to perform the method according to any one of the possible implementations of the first aspect to the first aspect.

The technical effects of any one of the designs of the second aspect to the fifth aspect of the present application may refer to the technical effects of the method corresponding to the first aspect, and are not described herein.

These and other aspects of the present application will be more readily apparent from the following description.

Drawings

Fig. 1 is a schematic diagram of a structure of a terminal according to an embodiment of the present application;

fig. 2 is a schematic diagram of a power control method of a terminal according to an embodiment of the present application;

fig. 3 is a schematic diagram of a method for predicting power of a terminal according to an embodiment of the present application;

fig. 4 is a schematic diagram of a structure of a neural network according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a power control device of a terminal according to an embodiment of the present application.

Detailed Description

The following describes in detail a power control method and apparatus for a terminal provided in the present application with reference to the accompanying drawings.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or for distinguishing between different processes of the same object and not for describing a particular sequential order of objects.

The terms "comprising" and "having" and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more.

For a single-radio-frequency multi-card terminal accessed by NOMA, the power allocated by each card may be different, in the prior art, radio-frequency hardware may be added at the terminal side, each SIM card occupies a set of radio-frequency hardware, so that different SIM cards can respectively transmit and receive with the respective required power, but the method has high cost, and cannot be realized for a stock terminal, namely a single-radio-frequency multi-card terminal. In addition, a fixed power value can be adopted, so that each card adopts the same power, but if lower power is adopted, the problems of high error rate, reduced signal-to-noise ratio and the like are caused to the SIM card with stronger channel interference; if higher power is used, it can cause interference to the channel environment of other users.

In order to solve the above-mentioned problems in power control of the single-radio multi-card terminal using NOMA access at present, embodiments of the present application provide a power control method for a terminal, and embodiments of the present application are described in detail below with reference to the accompanying drawings.

The power control method of the terminal provided in the embodiment of the present application may be implemented by the terminal 100 shown in fig. 1. As shown in fig. 1, the terminal 100 includes: one or more processors 110, one or more external memories 120, and one or more communication interfaces 130.

The processor 110, the external memory 120 and the communication interface 130 are connected by a bus. The processor 110 may include a general purpose central processing unit (central processing unit, CPU), a microprocessor, an application-specific integrated circuit (ASIC), or an integrated circuit for controlling the execution of programs of the present application, or the like.

In general, the processor 110 may have an internal memory provided therein, which may be used to store computer executable program code, including instructions. The internal memory may include a stored program area and a stored data area. The storage program area may store an operating system, application program codes, and the like. In some examples, the storage data area stores the obtained pre-allocation power of each SIM card, the corresponding relationship data of SRS and terminal power of each SIM card, and the like.

In addition, the internal memory may include high-speed random access memory, and may also include nonvolatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash memory (universal flash storage, UFS), and the like. The processor 110 performs various functional applications of the terminal and data processing by executing instructions stored in an internal memory. In one example, the processor 110 may also include multiple CPUs, and the processor 110 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

Communication interface 130 may be used to communicate with other devices or communication networks.

It should be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the terminal 100. In other embodiments of the present application, terminal 100 may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The method provided in the embodiment of the present application may be implemented by adding a software module (described as a management module in the embodiment of the present application) in a terminal or a base station, or may be adding an independent device between the terminal and the base station (described as a management network element in the embodiment of the present application). In this embodiment, a terminal with an added management module is described as an execution subject.

As shown in fig. 2, the power control method of the terminal provided in the embodiment of the present application includes:

s101, respectively acquiring pre-allocation power of each SIM card.

The pre-allocated power is the power allocated to each base station to which the SIM card is currently connected. For example, the terminal includes a first SIM card and a second SIM card, where the first SIM card reports to a management module of the terminal that the power allocated to the terminal by the corresponding base station is P ₁ The second SIM card reports the power P distributed by the corresponding base station to the management module of the terminal ₂ 。

It should be noted that, the method provided by the embodiment of the present application is aimed at the case that the preassigned powers of different SIM cards of the same terminal are not equal, and if the preassigned powers of all SIM cards of the terminal are equal, the power of the terminal is directly determined to be the preassigned power of the SIM card.

When all SIM cards of the terminal are in RRC-IDLE or RRC-INACTIVE, the following S102 to S104 are performed; when there is a SIM card in RRC-CONNECTED, the following S105-S106 are performed.

S102, when all SIM cards are in RRC-IDLE or RRC-INACTIVE, determining the minimum transceiving power P of the terminal when the signal strength of the terminal is greater than a preset value according to the channel environment parameters corresponding to each SIM card _Prediction 。

Optionally, the channel environment parameters include a channel sounding reference signal (sounding reference signal, SRS), the SRS specifically including a terminal signal strength, a subcarrier spacing, a signal-to-noise ratio (SNR), a scattering amplitude, a fading amplitude, and a power attenuation.

The preset value is a signal strength value meeting the communication requirement of the terminal.

S103, according to P _Prediction The pre-allocated power with each SIM card determines at least one power and a residence time at each power.

According to P _Prediction The magnitude relationship with the pre-allocated power for each SIM card determines at least one power and the residence time for each power, respectively. According to P _Prediction The at least one determined power is different from the magnitude of the pre-allocated power for each SIM card, as will be described in more detail below.

S104, switching between at least one power according to the residence time at each power.

For example, the power P is determined in S103 ₁ 、P ₂ 、P ₃ Wherein P is ₁ ＝23dbm，P ₂ ＝25dbm，P ₃ When the residence time of each power is t=0.0001 s, the power of the terminal becomes 25dbm after staying for 0.0001s at 23dbm, becomes 26dbm after staying for 0.0001s, becomes 23dbm after staying for 0.0001s, and is sequentially cycled to switch.

In the above-mentioned S102 to S104, in the case where one SIM card requires high power and the other SIM card requires low power, the terminal is rotated between different powers, and the residence time at each power is determined. Considering the cell channel environment where different SIM cards are located when determining the power for rotation change, avoiding directly and uniformly fixing the power to P ₁ Or P ₂ Or other uncorrelated power. The residence time of the power change is short, so that signal interference cannot be caused to other terminals, meanwhile, the requirements of different SIM cards on power can be considered, and the optimization of the receiving and transmitting power control of the terminal single-radio-frequency system is realized.

And S105, when the SIM card is in RRC-CONNECTED, determining the residence time of the pre-allocated power in each SIM card, wherein the residence time of the pre-allocated power corresponding to the SIM card in RRC-CONNECTED is larger than the residence time of the pre-allocated power corresponding to the rest SIM cards.

The terminal comprises a first SIM card and a second SIM card, wherein the first SIM card is positioned in RRC-CONNECTED state, so that the terminal pre-distributes power P in the first SIM card positioned in RRC-CONNECTED state ₁ Long residence time at P ₂ Is short. For example, at P ₁ Is 3T, at P ₂ Is T.

Exemplary, at P ₁ Residence time and at P ₂ The residence time ratio can also be determined by combining with P ₁ 、P ₂ Is determined by means of a calculation of the value correlation. For example, P ₁ Residence time: p (P) ₂ Residence time=1- (P) ₁ /P ₂ -1)*T ₁ :(P ₁ /P ₂ -1)*T ₁ Wherein T is ₁ In order to switch the frequency resource to monitor the time interval of the first SIM card and the second SIM card in the prior art.

Optionally, in the above step, if the pre-allocated power of the SIM card at RRC-CONNECTED is smaller than the pre-allocated power of the other SIM cards at RRC-IDLE or RRC-INACTIVE, when the terminal switches to the pre-allocated power of the SIM card at RRC-CONNECTED, the base station is notified to increase the frequency band for the other SIM cards at RRC-IDLE or RRC-INACTIVE.

The terminal comprises a first SIM card and a second SIM card, the first SIM card needs to be transferred to RRC-CONNECTED and pre-distributes power P ₁ Less than the pre-allocated power P of the second SIM card ₂ ，P ₁ <P ₂ Indicating that the cell channel environment of the second SIM card is worse than that of the first SIM card, if the power is directly reduced to P ₁ Then the signal transmission to the second SIM card will be affected. Because the first SIM card needs to carry out service communication and the second SIM card carries out broadcasting and monitoring at the moment, the method can be used for carrying out P ₁ Longer residence time, e.g. at P ₁ Is 3T, at P ₂ Is T, or by a ratio of 1-P ₁ /P ₂ *T ₁ :P ₁ /P ₂ *T ₁ Etc. At the same time, to compensate for power switching to P ₁ And when the second SIM card is affected, the base station is informed to increase the frequency band for the second SIM card to compensate the frequency resource of the second SIM card so as to make up the defects of time slots and power domains, namely the second SIM card needs high power originally but reduces the low power in part of time slots for ensuring the service of the first SIM card, so that a section of frequency band is specially and independently allocated to the second SIM card to monitor signaling such as paging, broadcasting and the like on the time slots, and large-area packet loss is avoided.

The added frequency band is a specific reserved frequency band allocated to the SIM card with the need by the base station, the frequency band is specially used for carrying paging signaling data under the special condition, the SIM cards of the multi-card terminal with the need are respectively split in a time slot allocation mode, the SIM card is not used for data, paging and other communication of other single-card terminal users, and after the second SIM card releases the frequency band, the frequency band can be allocated to the SIM cards of other multi-card terminals.

For example, at t ₁ At this time, the first SIM card of the terminal 1 jumps to RRC CONNECTED to perform services such as data and voice telephony, and the second SIM card also remains in RRC-INACTIVE/IDLE state to perform signaling communications such as broadcast, listening, paging, etc., and the transmission power of the terminal is at t ₁ With P ₁ Power transmission, simultaneously, a specific frequency is additionally allocated to a second SIM card to synchronously carry out signaling communication such as broadcasting, monitoring, paging and the like, and then at t ₂ Switching time to power P ₂ The second SIM card releases a specific frequency allocated to a certain SIM card of the terminal 2 requiring an increased frequency band when the terminal 1 is at t ₃ Switching time to power P ₁ And then the specific frequency is allocated to the second SIM card to synchronously carry out signaling communication such as broadcasting, monitoring, paging and the like.

The step S105 further includes, prior to: the newly added management module obtains the pre-allocated power allocated for each SIM card by the base station CONNECTED with each SIM card and the identification code of the SIM card currently transferred to RRC-CONNECTED.

In the above steps, when the SIM card is in RRC-CONNECTED state, the quality of service performed by the terminal in the CONNECTED state may be ensured by making the residence time of the pre-allocated power of the SIM card greater than the residence time of the pre-allocated power of other SIM cards. Meanwhile, a specific reserved frequency band is added to the SIM card with larger pre-allocation power at the RRC-INACTIVE/IDLE, and when the terminal power is switched to the smaller pre-allocation power, the paging signal quality of the SIM card at the RRC-INACTIVE/IDLE is ensured.

S106, switching between the pre-allocated powers according to the residence time of each pre-allocated power.

After determining the power of the terminal for handover according to S102 to S106, the base station and the terminal change the power control bytes in the physical uplink control channel (physical uplink control channel, PUCCH) and physical uplink shared channel (physical uplink shared channel, PUSCH) signaling, and activate the distributed computation (downlink control indicator, DCI) field to set the power control command of the terminal, adjusting the power of the SIM card.

Wherein, the above-mentioned S101-S106 may be performed by the processor 110 shown in fig. 1.

In the method, the preallocated power of each SIM card of the terminal is obtained for the single-radio frequency multi-card terminal under the non-orthogonal access scene, and the terminal is controlled to switch between different powers according to the states (in RRC-IDLE or RRC-INACTIVE or in RRC-CONNECTED) of all the SIM cards of the terminal. When all SIM cards of the terminal are in RRC-IDLE or RRC-INACTIVE, the power required by the terminal is correspondingly predicted according to the channel environment of each SIM card, the switching of the terminal between at least one power and the residence time of each power are respectively determined according to the relation between the predicted power and the pre-allocated power of each SIM card, the requirements of different cards on the transmitting power can be considered, and the interference to the channel environment of other terminals is reduced as much as possible. When the SIM card is in RRC-CONNECTED, the power of the terminal is determined to stay longer in the pre-allocation power of the SIM card in RRC-CONNECTED, so that the quality of service performed by the terminal in a CONNECTED state can be ensured. Meanwhile, a specific reserved frequency band is added to the SIM card with larger pre-allocation power at the RRC-INACTIVE/IDLE, so that the paging signal quality of the SIM card at the RRC-INACTIVE/IDLE is ensured when the terminal is switched to smaller power.

The above steps S102 to S104 of the method will be further described below taking two SIM cards (a first SIM card and a second SIM card) as an example.

In one implementation of S102 to S104, the minimum transmit-receive power P of the terminal when the signal strength of the terminal is greater than the preset value is determined by training the neural network _Prediction 。

Whether the PLMN identifications of different SIM cards of the same terminal are the same or not indicates whether the channel environments in which the PLMN identifications are positioned are the same or not. The parameters of the corresponding neural network are different when the channel environments of the different SIM cards are different, so that the parameters of the neural network and the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal is larger than a preset value are respectively determined according to whether the PLMN identifications of the first SIM card and the second SIM card are the same _Prediction 。

In a possible implementation manner, as shown in fig. 3, in S102, the minimum transmit-receive power P of the terminal when the signal strength of the terminal is greater than the preset value is determined according to the channel environment parameter corresponding to each SIM card _Prediction The method can be concretely realized as follows:

if the PLMN identities of the first SIM card and the second SIM card are the same, the following S201A is executed.

S201A, inputting the channel environment parameters currently corresponding to the first SIM card or the second SIM card to an input node of a preset neural network, and determining the lowest transceiving power P of the terminal when the signal strength of the terminal is greater than a preset value _Prediction 。

Exemplary, the correspondence between SRS and terminal power for each SIM card is listed in table one below.

List one

The structure of the preset neural network is shown in FIG. 4, wherein the input layer has 6 nodes, which are respectively subcarrier spacing, signal-to-noise ratio, scattering amplitude, fading amplitude, power attenuation, signal strength, the middle layer has 2 nodes, the output layer has 1 node, which is terminal power, w ₁ To w ₉ Is a parameter of the connection relation between the nodes.

Historical data in a list recorded by the first SIM card or the second SIM card is input into a neural network structure shown in fig. 4 according to the corresponding relation between SRS and terminal power, and the parameters of the connection relation among all nodes in the preset neural network are obtained through repeated training.

If the PLMN identities of the first SIM card and the second SIM card are different, the following S201B to S203B are executed.

S201B, inputting the current channel environment parameters of the first SIM card to an input node of a neural network corresponding to the first SIM card, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the first SIM card is greater than a preset value _{1 prediction} 。

S202B, inputting the current channel environment parameters of the second SIM card to the first SIM cardInput nodes of the neural network corresponding to the two SIM cards determine the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the second SIM card is larger than a preset value _{2 prediction} 。

Optionally, the historical data in the list recorded by the first SIM card is input into a neural network structure shown in fig. 4 according to the corresponding relation between SRS and terminal power, and the parameters of the neural network corresponding to the first SIM card are obtained through repeated training; and (3) inputting the historical data in the list recorded by the second SIM card into a neural network structure shown in fig. 4 according to the corresponding relation between SRS and terminal power, and obtaining parameters of the neural network corresponding to the second SIM card through repeated training.

S203B, P _{1 prediction} And P _{2 prediction} As the lowest transmit-receive power P of the terminal when the signal strength of the terminal is greater than the preset value _Prediction 。

P is the same as _Prediction Is not limited to P _{1 prediction} And P _{2 prediction} Other values may be obtained.

Wherein, the above-mentioned S201A, S B-S203B may be executed by the processor 110 shown in fig. 1.

Optionally, the pre-allocated power of the first SIM card is P ₁ The preallocated power of the second SIM card is P ₂ . In S103, according to P _Prediction The pre-allocation power with each SIM card determines at least one power and residence time at each power, which can be implemented specifically as:

s301, if P _Prediction <P ₁ And P is _Prediction <P ₂ Then determine the power as P ₁ 、P ₂ The residence time at each power is a first preset duration.

In the above step, P _Prediction <P ₁ And P is _Prediction <P ₂ Description of P at this time ₁ P ₂ Enough to guarantee a good terminal signal, the terminal power can be set at P ₁ 、P ₂ Switching between.

The first preset duration may be equal to a time interval in the prior art when the terminal switches the frequency resource to monitor the first SIM card and the second SIM card, respectively, or may be other durations.

S302, if P ₁ <P _Prediction <P ₂ Then determine at least one power as P ₁ X intermediate powers, P ₂ Wherein the value of X intermediate powers is greater than P ₁ Less than P ₂ And the average value of X intermediate powers should be greater than P ₁ And P ₂ The residence time at each power is a second preset duration; x is an integer greater than or equal to 1.

Illustratively, the value of X may be equal to P ₁ And P ₂ The difference between them correlates, the larger the difference the larger the value of X.

For example, when p1=23 dbm and p2=25 dbm, X may be 2; when p1=23 dbm and p2=26 dbm, X may be 3.

For example, the spacing of adjacent switching powers may be equally or proportionally reduced, or otherwise, when determining the X intermediate powers.

For example, p1=23dbm and p2=26 dbm, the power for performing the handover may be determined to be 23dbm, 24.5dbm, 25.5dbm, 26dbm.

The second preset duration may be equal to a time interval in the prior art when the terminal switches the frequency resource to monitor the first SIM card and the second SIM card, respectively, or may be other durations.

In the above step, P ₁ <P _Prediction <P ₂ Then the divided X intermediate powers should be as close to P as possible ₂ I.e. the terminal is kept at a larger power as much as possible, therefore the average of the X intermediate powers should be greater than P ₁ And P ₂ Average value of (2). Thus, the power of the terminal can be ensured to meet the power requirements of different SIM cards.

S303, if P _Prediction >P ₁ And P is _Prediction >P ₂ Then determine at least one power as P ₁ 、P ₂ Terminal at P ₁ 、P ₂ The larger power dwell time is greater than at the smaller power dwell time.

For example, P ₁ <P ₂ At P ₁ Is (are) resident in (a)The retention time is T ₁ At P ₂ Is 3T ₁ 。

In S303, P _Prediction >P ₁ And P is _Prediction >P ₂ Then let the terminal at P ₁ 、P ₂ The larger power residence time of the mobile terminal is longer than that of the mobile terminal in the smaller power residence time, so that the power requirements of two cards can be ensured, and interference to other users is avoided as much as possible.

In S303, in order to keep the terminal as high as possible, the method of dividing the power into X intermediate powers as in S302 may be also included, but in P _Prediction >P ₁ And P is _Prediction >P ₂ In the case of (1), the terminal is set at P ₁ 、P ₂ More preferably, the larger power dwell time is greater than at the smaller power dwell time.

Wherein, the above-mentioned S301-S303 may be performed by the processor 110 shown in fig. 1.

The above description is given taking the execution subject as a terminal. When the execution subject is a newly added management network element between the base station or the base station and the terminal to which the management module is added, part of the steps should be adaptively adjusted.

The method provided by the embodiment of the present application is directed to a terminal with a number of SIM cards greater than that of radio frequency systems, and therefore, when the execution body is a base station, the method further includes, before S101: when registering, the terminal reports the number of the SIM cards and the number of the radio frequency systems to the base station, and if the number of the SIM cards is larger than the number of the radio frequency systems, the base station carries out special marking on the terminal. When the execution subject is a newly added management network element, the method further includes, before S101: when the terminal is registered, the number of SIM cards and the number of radio frequency systems are reported to the newly added management network element, and if the number of SIM cards is larger than the number of radio frequency systems, the newly added management network element carries out special marking on the terminal.

For example, if the number of SIM cards of the dual card terminal is 2 and the number of radio frequency systems is 1, the base station or the newly added management network element performs special marking on the terminal; if the number of SIM cards of the dual-card terminal is 2 and the number of the radio frequency systems is 2, the terminal is not specially marked.

For example, when the execution body is a newly added management network element, S101 respectively obtains the pre-allocated power of each SIM card, and the power allocated to the corresponding base station by the SIM card is reported to the base station or the newly added management network element.

For example, when the execution subject is a base station, in S102, the corresponding relationship data of SRS and terminal power of each SIM card of the terminal is reported to the base station by the terminal.

For example, when the execution subject is a newly added management network element, in S102, the corresponding relationship data of SRS and terminal power of each SIM card of the terminal is reported to the newly added management network element by the terminal.

Illustratively, when the execution subject is a newly added management network element, before S105, it includes: the SIM card reports the pre-allocated power allocated to each SIM card of the newly added management network element by the base station CONNECTED with each SIM card and the identification code of the SIM card currently transferred to RRC-CONNECTED.

For example, when the execution body is a newly added management network element, in S105, when a specific reserved frequency band is added to the SIM card with larger pre-allocation power at RRC-INACTIVE/IDLE, the newly added management network element notifies the base station to add the specific reserved frequency band to the SIM card with larger pre-allocation power at RRC-INACTIVE/IDLE.

For example, when the execution body is a newly added management network element, after determining the power of the terminal for switching in S103 and S105, the newly added management network element notifies the base station and the terminal to change the power control bytes in the physical uplink control channel (physical uplink control channel, PUCCH) and the physical uplink shared channel (physical uplink shared channel, PUSCH) signaling, and activates a distributed computation (downlink control indicator, DCI) field to set the power control command of the terminal, and adjusts the power of the SIM card.

The foregoing description of the solution provided in the embodiments of the present application has been mainly presented in terms of a method. To achieve the above functions, it includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application may divide the functional modules of the terminal according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. Optionally, the division of the modules in the embodiments of the present application is schematic, which is merely a logic function division, and other division manners may be actually implemented.

As shown in fig. 5, an embodiment of the present application provides a power control apparatus 500 of a terminal, where the apparatus includes:

the acquiring unit 501 is configured to acquire pre-allocation power of each SIM card, correspondence data between SRS and terminal power of each SIM card, and the like.

A processing unit 502, configured to determine, when all SIM cards are in RRC-IDLE or RRC-INACTIVE, a minimum transmit-receive power P of the terminal when the signal strength of the terminal is greater than a preset value according to the channel environment parameter corresponding to each SIM card _Prediction 。

The processing unit 502 is further configured to, according to P _Prediction The pre-allocated power with each SIM card determines at least one power and a residence time at each power.

The processing unit 502 is further configured to switch between at least one power according to the residence time at each power.

The processing unit 502 is further configured to determine a residence time of the pre-allocated power in each SIM card when the SIM card is located at RRC-CONNECTED, where the residence time of the pre-allocated power in the SIM card located at RRC-CONNECTED is greater than the residence time of the pre-allocated power in the remaining SIM cards.

The processing unit 502 is further configured to switch between pre-allocated powers according to the residence time at each pre-allocated power.

In a possible implementation manner, the processing unit 502 is specifically configured to: inputting the channel environment parameters currently corresponding to the first SIM card or the second SIM card into an input node of a preset neural network, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal is greater than a preset value _Prediction 。

In a possible implementation manner, the processing unit 502 is specifically configured to: inputting the current channel environment parameters of the first SIM card into an input node of a neural network corresponding to the first SIM card, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the first SIM card is greater than a preset value _{1 prediction} The method comprises the steps of carrying out a first treatment on the surface of the Inputting the current channel environment parameters of the second SIM card to an input node of a neural network corresponding to the second SIM card, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the second SIM card is greater than a preset value _{2 prediction} The method comprises the steps of carrying out a first treatment on the surface of the Will P _{1 prediction} And P _{2 prediction} As the lowest transmit-receive power P of the terminal when the signal strength of the terminal is greater than the preset value _Prediction 。

In a possible implementation manner, the processing unit 502 is specifically configured to: if P _Prediction <P ₁ And P is _Prediction <P ₂ Then determine the power as P ₁ 、P ₂ The residence time of each power is a first preset duration; if P ₁ <P _Prediction <P ₂ Then determine at least one power as P ₁ X intermediate powers, P ₂ Wherein the value of X intermediate powers is greater than P ₁ Less than P ₂ And the average value of X intermediate powers should be greater than P ₁ And P ₂ The residence time at each power is a second preset duration; x is an integer greater than or equal to 1; if P _Prediction >P ₁ And P is _Prediction >P ₂ Then determine at least one power as P ₁ 、P ₂ The terminal is atP ₁ 、P ₂ The larger power dwell time is greater than at the smaller power dwell time.

The embodiment of the application also provides a terminal, which comprises: a memory and a processor; the memory is used to store a computer program that is used by the processor to invoke the computer program to perform the actions or steps mentioned in any of the embodiments provided above.

Embodiments of the present application also provide a computer readable storage medium having stored thereon a computer program which, when run on a terminal, causes the terminal to perform the actions or steps mentioned in any of the embodiments provided above.

The embodiment of the application also provides a chip. The chip has integrated therein circuitry and one or more interfaces for implementing the functions of the power control means of the terminal described above. Optionally, the functions supported by the chip may include processing actions in the embodiments described based on fig. 2 and fig. 3, which are not described herein. Those of ordinary skill in the art will appreciate that all or a portion of the steps implementing the above-described embodiments may be implemented by a program to instruct associated hardware. The program may be stored in a computer readable storage medium. The above-mentioned storage medium may be a read-only memory, a random access memory, or the like. The processing unit or processor may be a central processing unit, a general purpose processor, an application specific integrated circuit (application specific integrated circuit, ASIC), a microprocessor (digital signal processor, DSP), a field programmable gate array (field programmable gate array, FPGA) or other programmable logic device, transistor logic device, hardware components, or any combination thereof.

The present embodiments also provide a computer program product comprising instructions which, when run on a terminal, cause the terminal to perform any of the methods of the above embodiments. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a terminal, the processes or functions described in accordance with the embodiments of the present application are produced in whole or in part. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, a website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the media. The usable medium may 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 Disk (SSD)), or the like.

It should be noted that the above-mentioned devices for storing computer instructions or computer programs, such as, but not limited to, the above-mentioned memories, computer-readable storage media, communication chips, and the like, provided in the embodiments of the present application all have non-volatility (non-transparency).

Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a study of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the present application has been described in connection with specific features and embodiments thereof, various modifications and combinations thereof can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the present application.

Claims

1. A method for controlling power of a terminal, wherein the terminal comprises at least two subscriber identity SIM cards, the method comprising:

respectively acquiring pre-allocation power of each SIM card;

when all the SIM cards are in a radio resource control IDLE state RRC-IDLE or a radio resource control INACTIVE state RRC-INACTIVE, determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal is greater than a preset value according to the channel environment parameters corresponding to each SIM card _Prediction ；

According to the P _Prediction Determining at least one power and residence time at each power with the pre-allocated power of each SIM card;

switching between the at least one power according to the residence time at each power;

when the SIM card is in a radio resource control connection state RRC-CONNECTED, determining the residence time of the pre-allocated power in each SIM card, wherein the residence time of the pre-allocated power corresponding to the SIM card in the RRC-CONNECTED is larger than the residence time of the pre-allocated power corresponding to the rest SIM cards;

sequentially switching cyclically between the pre-allocated powers according to the residence time of each pre-allocated power;

the at least two SIM cards comprise a first SIM card and a second SIM card, wherein the pre-allocation power of the first SIM card is P ₁ The pre-allocation power of the second SIM card is P ₂ The method comprises the steps of carrying out a first treatment on the surface of the Said according to said P _Prediction Determining at least one power and a residence time at each power with the pre-allocated power for each SIM card, comprising:

if P _Prediction <P ₁ And P is _Prediction <P ₂ Determining the at least one power as P ₁ 、P ₂ The residence time of each power is a first preset duration;

if P ₁ <P _Prediction <P ₂ Determining the at least one power as P ₁ X intermediate powers, P ₂ Wherein, the method comprises the steps of, wherein,the value of X intermediate powers is greater than P ₁ Less than P ₂ And the average value of the X intermediate powers should be greater than P ₁ And P ₂ The residence time at each power is a second preset duration; x is an integer greater than or equal to 1;

if P _Prediction >P ₁ And P is _Prediction >P ₂ Determining the at least one power as P ₁ 、P ₂ The terminal is at P ₁ 、P ₂ The larger power dwell time is greater than at the smaller power dwell time.

2. The power control method of a terminal according to claim 1, characterized in that the method further comprises:

if the pre-allocation power of the SIM card in RRC-CONNECTED is smaller than the pre-allocation power of the other SIM cards in RRC-IDLE or RRC-INACTIVE, when the terminal is switched to the pre-allocation power of the SIM card in RRC-CONNECTED, the frequency band is increased for the other SIM cards in RRC-IDLE or RRC-INACTIVE.

3. The method for power control of a terminal according to claim 1, wherein the at least two SIM cards include a first SIM card and a second SIM card; determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal is greater than a preset value according to the channel environment parameters corresponding to each SIM card _Prediction Comprising:

inputting the channel environment parameters currently corresponding to the first SIM card and/or the second SIM card to an input node of a neural network, and determining P _Prediction 。

4. A method for controlling power of a terminal according to claim 3, wherein the input node for inputting the channel environment parameters currently corresponding to the first SIM card and/or the second SIM card into the neural network determines the P _Prediction Comprising:

if the public land mobile network PLMN identifiers of the first SIM card and the second SIM card are the same, the first SIM card and the second SIM card are selected to be the sameThe channel environment parameters corresponding to the first SIM card or the second SIM card are input to an input node of a preset neural network, and the P is determined _Prediction ；

If the PLMN identities of the first SIM card and the second SIM card are different, inputting the current channel environment parameters of the first SIM card to an input node of a neural network corresponding to the first SIM card, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the first SIM card is greater than a preset value _{1 prediction} The method comprises the steps of carrying out a first treatment on the surface of the Inputting the current channel environment parameters of the second SIM card to an input node of a neural network corresponding to the second SIM card, and determining the lowest receiving and transmitting power P of the terminal when the signal strength of the terminal corresponding to the second SIM card is greater than a preset value _{2 prediction} The method comprises the steps of carrying out a first treatment on the surface of the The P is set _{1 prediction} And said P _{2 prediction} Is taken as the lowest receiving and transmitting power P of the terminal when the signal intensity of the terminal is larger than a preset value _Prediction 。

5. A power control apparatus of a terminal, comprising:

the acquisition unit is used for respectively acquiring the preallocated power of each SIM card;

a processing unit, configured to determine, when all the SIM cards are in an IDLE RRC-IDLE or INACTIVE RRC-INACTIVE state, a minimum transmit-receive power P of the terminal when the signal strength of the terminal is greater than a preset value according to channel environment parameters corresponding to each SIM card _Prediction ；

The processing unit is further configured to, according to the P _Prediction Determining at least one power and residence time at each power with the pre-allocated power of each SIM card;

the processing unit is further configured to switch between the at least one power according to a residence time at each power;

The processing unit is further configured to determine a residence time of the pre-allocated power in each SIM card when the SIM card is in the RRC-CONNECTED state, where the residence time of the pre-allocated power corresponding to the SIM card in the RRC-CONNECTED state is greater than the residence time of the pre-allocated power corresponding to the remaining SIM cards;

the processing unit is further used for sequentially and circularly switching between the pre-allocated powers according to the residence time of each pre-allocated power;

the at least two SIM cards comprise a first SIM card and a second SIM card, wherein the pre-allocation power of the first SIM card is P ₁ The pre-allocation power of the second SIM card is P ₂ ；

The processing unit is also used for if P _Prediction <P ₁ And P is _Prediction <P ₂ Determining the at least one power as P ₁ 、P ₂ The residence time of each power is a first preset duration;

the processing unit is also used for if P ₁ <P _Prediction <P ₂ Determining the at least one power as P ₁ X intermediate powers, P ₂ Wherein the value of X intermediate powers is greater than P ₁ Less than P ₂ And the average value of the X intermediate powers should be greater than P ₁ And P ₂ The residence time at each power is a second preset duration; x is an integer greater than or equal to 1;

The processing unit is also used for if P _Prediction >P ₁ And P is _Prediction >P ₂ Determining the at least one power as P ₁ 、P ₂ The terminal is at P ₁ 、P ₂ The larger power dwell time is greater than at the smaller power dwell time.

6. The power control device of claim 5, wherein the processing unit is further configured to add a frequency band to the other SIM cards in RRC-IDLE or RRC-INACTIVE when the terminal switches to the pre-allocated power of the SIM cards in RRC-CONNECTED if the pre-allocated power of the SIM cards in RRC-CONNECTED is smaller than the pre-allocated power of the other SIM cards in RRC-IDLE or RRC-INACTIVE.

7. According toThe power control apparatus of the terminal of claim 5, wherein the at least two SIM cards include a first SIM card and a second SIM card; the processing unit is further configured to input the channel environment parameters currently corresponding to the first SIM card and/or the second SIM card to an input node of the neural network, and determine P _Prediction 。

8. The apparatus for power control of a terminal according to claim 7, wherein,

the processing unit is further configured to, if the public land mobile network PLMN identities of the first SIM card and the second SIM card are the same, input the channel environment parameter currently corresponding to the first SIM card or the second SIM card to an input node of a preset neural network, and determine the P _Prediction ；

9. A terminal, comprising: a memory for storing computer instructions and a processor for executing the computer instructions to perform the method of any of claims 1-4.

10. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein computer instructions, which when run at a terminal, cause the terminal to perform the method of any of claims 1-4.