CN111491275B

CN111491275B - Power control method and device, storage medium and electronic equipment

Info

Publication number: CN111491275B
Application number: CN201910082451.7A
Authority: CN
Inventors: 许百成; 袁亮; 邓祝明
Original assignee: Beijing Xiaomi Pinecone Electronic Co Ltd
Current assignee: Beijing Xiaomi Pinecone Electronic Co Ltd
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2023-08-15
Anticipated expiration: 2039-01-28
Also published as: CN111491275A

Abstract

The disclosure relates to a power control method, a device, a storage medium and an electronic apparatus, so as to quickly realize link reestablishment when a device-to-device (D2D) link is disconnected. The power control method comprises the following steps: stopping transmitting data channels when the device-to-device (D2D) link is broken, the data channels including a physical downlink control channel and a physical downlink shared channel; determining the total transmission power of the reference equipment in the D2D link; the total power of transmission is allocated for transmission of the synchronization signal, the reference signal and the broadcast signal.

Description

Power control method and device, storage medium and electronic equipment

Technical Field

The disclosure relates to the technical field of communication, and in particular relates to a power control method, a device, a storage medium and electronic equipment.

Background

D2D (Device to Device) is a system for direct communication between devices, and is widely used in interphones, unmanned aerial vehicles with image transmission functions, and the like. In the D2D system, since the transmission of the wireless signal is attenuated with the increase of the distance, the application of the D2D system needs to be within a certain distance range, and beyond a certain distance range, the communication signal is attenuated below the demodulation threshold, so that the communication link cannot be maintained. For example, after the unmanned aerial vehicle flies out a certain distance range, the unmanned aerial vehicle has a broken chain with the remote controller, and in this case, the unmanned aerial vehicle can trigger the return journey on the one hand, and can establish connection with the remote controller again on the other hand.

In the related art, when the D2D system performs link reestablishment, the slave device in the D2D system first detects the synchronization signal to regain synchronization, then reads the MIB (Master Information Block, master system information block) in the broadcast channel, and finally completes the link reestablishment through random access and signaling interaction. However, when the D2D system is broken, the communication signal transmitted by the reference device is very weak due to the limitation of the distance, and thus it is difficult for the slave device to quickly and accurately reacquire synchronization and successfully read broadcast information.

Disclosure of Invention

The disclosure aims to provide a power control method, a device, a storage medium and an electronic device, so as to quickly realize link reestablishment when a device-to-device (D2D) link is disconnected.

To achieve the above object, in a first aspect, the present disclosure provides a power control method, the method comprising:

stopping transmitting data channels when the device-to-device (D2D) link is broken, the data channels including a physical downlink control channel and a physical downlink shared channel;

determining the total transmission power of the reference equipment in the D2D link;

the total power of transmission is allocated for transmission of the synchronization signal, the reference signal and the broadcast signal.

Optionally, the allocating the total transmission power for transmission of the synchronization signal, the reference signal and the broadcast signal includes:

determining whether there is one modulation symbol in the D2D link including at least two communication signals of the synchronization signal, the reference signal, and the broadcast signal;

and when the at least two communication signals are included in the one modulation symbol, the total power of transmission is distributed to be used for transmitting the at least two communication signals according to the preset priority of the at least two communication signals, wherein the preset priority is used for representing the sequence of the transmission power of the distributed communication signals.

Optionally, the method further comprises:

and when the preset priorities of the at least two communication signals are the same, distributing the total transmission power for the transmission of the at least two communication signals according to the duty ratio of the at least two communication signals in the transmission signal.

Optionally, the method further comprises:

and determining preset priorities of the synchronous signals, the reference signals and the broadcast signals according to the sequence of the synchronous signals, the reference signals and the broadcast signals received by the slave equipment in the D2D link in the link establishment process.

Optionally, the method further comprises:

determining whether an access signal sent by a slave device in the D2D link is received;

when receiving an access signal sent by the slave device, adjusting the sending power of the synchronous signal to a first preset power, sending the sending power of the reference signal to a second preset power, and adjusting the sending power of the broadcast signal to a third preset power.

In a second aspect, the present disclosure also provides a power control apparatus, the apparatus comprising:

a transmission stopping module, configured to stop transmitting a data channel when a device-to-device D2D link is disconnected, where the data channel includes a physical downlink control channel and a physical downlink shared channel;

the acquisition module is used for acquiring the total transmission power of the reference equipment in the D2D link;

and the first allocation module is used for allocating the total transmission power to be used for transmitting the synchronous signals, the reference signals and the broadcast signals.

Optionally, the first allocation module is configured to:

Optionally, the apparatus further comprises:

and the first determining module is used for distributing the total transmission power to be used for transmitting the at least two communication signals according to the duty ratio of the at least two communication signals in the transmission signals when the preset priorities of the at least two communication signals are the same.

Optionally, the apparatus further comprises:

and the second determining module is used for determining preset priorities of the synchronous signals, the reference signals and the broadcast signals according to the sequence of the synchronous signals, the reference signals and the broadcast signals received by the slave equipment in the D2D link in the link establishment process.

Optionally, the apparatus further comprises:

a third determining module, configured to determine whether an access signal sent by a slave device in the D2D link is received;

and the adjusting module is used for adjusting the power for transmitting the synchronous signal to a first preset power, transmitting the power for transmitting the reference signal to a second preset power and adjusting the power for transmitting the broadcast signal to a third preset power when receiving the access signal transmitted by the slave device.

In a third aspect, the present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of the first aspects.

In a fourth aspect, the present disclosure also provides an electronic device, including:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of any of the first aspects.

By the technical scheme, the data channel can be stopped when the D2D link is disconnected, and then the total transmission power of the reference equipment in the D2D link is distributed for transmission of the synchronous signal, the reference signal and the broadcast signal. That is, the power control method of the present disclosure may control the reference device to stop transmitting the data signal when the D2D system generates the broken link, and then use all the power of the reference device to transmit the most important synchronization signal, reference signal and broadcast signal in the D2D broken link reconstruction process, so that the slave device may accurately reacquire synchronization and successfully read the broadcast information, thereby implementing fast reconstruction of the D2D link.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a flow chart illustrating a method of power control according to an exemplary embodiment of the present disclosure;

FIG. 2 is a flow chart illustrating a method of power control according to another exemplary embodiment of the present disclosure;

FIG. 3 is a block diagram of a power control device according to an exemplary embodiment of the present disclosure;

fig. 4 is a block diagram of an electronic device, according to an exemplary embodiment of the present disclosure.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

D2D (Device to Device) is a system for direct communication between devices, and is widely used in interphones, unmanned aerial vehicles with image transmission functions, and the like. In the D2D system, since the transmission of the communication signal is attenuated with the increase of the distance, the application of the D2D system needs to be within a certain distance range, and beyond a certain distance range, the communication signal is attenuated below the demodulation threshold, and the communication link cannot be maintained. For example, after the unmanned aerial vehicle flies out a certain distance range, the unmanned aerial vehicle has a broken chain with the remote controller, and in this case, the unmanned aerial vehicle can trigger the return journey on the one hand, and can establish connection with the remote controller again on the other hand.

In the related art, a device providing reference timing in a D2D system is referred to as a reference device, other devices (such as a remote controller in unmanned aerial vehicle communication) are referred to as slave devices, when the D2D system performs link reestablishment, the slave devices first detect a synchronization signal to regain synchronization, then read MIB (Master Information Block, master system information block) in a broadcast channel, and finally complete link reestablishment through random access and signaling interaction. However, when the D2D system is broken, the communication signal transmitted from the base station apparatus is very weak due to the limitation of the distance, and thus it is difficult for the slave apparatus to quickly and accurately reacquire synchronization and successfully read broadcast information.

In order to solve the above problems, the disclosure provides a power method, a device, a storage medium and an electronic apparatus, so as to quickly implement link reestablishment when a D2D system generates a broken link.

Fig. 1 is a flowchart illustrating a power control method according to an exemplary embodiment of the present disclosure, and referring to fig. 1, the power control method may include the steps of:

in step S101, when the device-to-device D2D link is disconnected, transmission of data channels including a physical downlink control channel and a physical downlink shared channel is stopped.

The D2D link disconnection may be, for example, a case where the communication signal is interrupted due to a limitation of the distance, or a case where the D2D link is disconnected due to a weak signal, such as a case where the communication signal is interrupted due to a shielding of an obstacle, which is not limited by the embodiment of the present disclosure.

Step S102, determining the total transmission power of the reference devices in the D2D link.

The total transmitted power may be a fixed power value obtained directly from the reference device, or may be a power value that varies from one communication signal to another. It should be appreciated that since the maximum value of the total transmitted power is fixed, the total transmitted power of the reference device may be fixed if communicating at the maximum total transmitted power.

Step S103, allocating the total transmission power for transmission of the synchronization signal, the reference signal and the broadcast signal.

The synchronization signals may include a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS), among others.

By the power control method in the embodiment of the disclosure, when the D2D link is disconnected, after the data signal is stopped, the total transmission power of the reference device can be used for transmitting the most important synchronization signal (PSS/SSS), reference signal (CRS) and broadcast signal (PBCH) in the broken link reestablishment process, so as to quickly reestablish the D2D link.

In one possible manner, it may also be that whether at least two communication signals including a synchronization signal, a reference signal and a broadcast signal are included in one modulation symbol in the D2D link is determined first, and when at least two communication signals are included in one modulation symbol, the total power of transmission is allocated to the transmission of at least two communication signals according to a preset priority of at least two communication signals, where the preset priority is used to characterize the sequence of allocating the transmission powers of the communication signals.

For example, when OFDM (Orthogonal Frequency Division Multiplexing ) is used in the D2D system, the modulation symbol may be an OFDM symbol. It should be appreciated that when other modulation techniques are used in the D2D system, the modulation symbols may be transmission symbols corresponding to the modulation techniques, which are not limited by the embodiments of the present disclosure.

For example, the preset priority may be used to characterize the sequence of allocating the transmission power of the communication signal, where the higher the preset priority of the communication signal, the more the transmission power corresponding to the communication signal may be allocated first, whereas the lower the preset priority of the communication signal, the more the transmission power corresponding to the communication signal may be allocated later.

The preset priority may be indicated by letters or numbers, for example, the preset priority of the communication signal may be indicated by numerals 1 to 9, the preset priority of the communication signal may be respectively indicated to be sequentially decreased in the order of numerals 1 to 9, and the like, and the embodiment of the present disclosure is not limited to a specific setting manner and content of the preset priority.

In one possible manner, the preset priorities of the synchronization signal, the reference signal, and the broadcast signal may be determined according to the order in which the slave devices in the D2D link receive the synchronization signal, the reference signal, and the broadcast signal in the process of establishing the link.

For example, the preset priorities of the synchronization signal, the reference signal, and the broadcast signal may be determined according to the sequence in which the slave device in the D2D link receives the synchronization signal, the reference signal, and the broadcast signal in the process of establishing the link. For example, in the process of establishing a link, the earlier a slave device accesses a certain communication signal, the higher the preset priority of the communication signal may be, whereas the later the slave device accesses a certain communication signal, the lower the preset priority of the communication signal may be. For example, in the D2D link establishment procedure, the order in which the slave device receives the communication signals is in turn: the primary synchronization signal, the secondary synchronization signal, and the broadcast signal, it may be determined that the primary synchronization signal has a higher preset priority than the secondary synchronization signal, and the secondary synchronization signal has a higher preset priority than the broadcast signal.

By the method, the priority can be set for the synchronous signals, the reference signals and the broadcast signals, and then the total power transmitted by the reference equipment is distributed to be used for transmitting the synchronous signals, the reference signals and the broadcast signals according to the priority, so that the accuracy of power control is ensured, and the reconstruction process of the D2D link is quickened.

It will be appreciated that when the preset priorities of the at least two communication signals are different, the total power of transmission may be allocated for the transmission of the at least two communication signals according to the preset priorities in the manner described above. However, if the preset priorities of the at least two communication signals are the same, the total power of transmission may be allocated for the transmission of the at least two communication signals according to other allocation policies.

In one possible manner, when the preset priorities of the at least two communication signals are the same, the total transmission power may be allocated for transmission of the at least two communication signals according to the duty ratio of the at least two communication signals in the transmission signal.

It should be understood that the transmit signal is a signal transmitted by the reference device to the slave device in the D2D link. If the duty cycle of the communication signal in the transmission signal is higher, a larger transmission power may be allocated to the communication signal, whereas a smaller transmission power may be allocated to the communication signal.

For example, when the D2D system uses OFDM, the duty ratio of the communication signal in the transmission signal may be represented by the number of subcarriers. In this case, when the preset priorities of the at least two communication signals are the same, the total transmission power may be allocated for transmission of the at least two communication signals according to the number of subcarriers to which the at least two communication signals respectively correspond.

For example, in a D2D system using OFDM, symbol 7 of subframe 0 carries a reference signal and a broadcast signal at the same time, the transmission of the reference signal requires 100 subcarriers, the transmission of the broadcast signal requires 48 subcarriers, and the preset priorities of the reference signal and the broadcast signal are the same, and the total power of transmission is P.

By the method, the subcarrier power of the communication signal can be determined according to the duty ratio of the communication signal in the transmission signal, and the power control can be more accurately performed, so that the D2D broken chain reconstruction process is rapidly realized.

In one possible manner, it may also be determined whether an access signal transmitted by a slave device in the D2D link is received, and when the access signal transmitted by the slave device is received, the transmission power of the synchronization signal is adjusted to a first preset power, the transmission power of the reference signal is transmitted to a second preset power, and the transmission power of the broadcast signal is adjusted to a third preset power.

For example, the first preset power, the second preset power, and the third preset power may be preset according to actual situations, and the like, which is not limited by the embodiments of the present disclosure. It should be appreciated that the values of the first preset power, the second preset power, and the third preset power may be the same or different, and the embodiments of the present disclosure are not limited thereto.

Determining whether an access signal transmitted by a slave device in the D2D link is received, that is, determining whether the D2D link reestablishes connection, if the access signal transmitted by the slave device is received, determining that the D2D link reestablishes successfully, so that the transmission power of the synchronization signal, the reference signal and the broadcast signal can be restored to normal values, that is, the transmission power of the synchronization signal can be adjusted to a first preset power, the transmission power of the reference signal can be transmitted to a second preset power, and the transmission power of the broadcast signal can be adjusted to a third preset power, and retransmitting the data channel to ensure the stability of D2D data transmission.

The power control method of the embodiments of the present disclosure is described below with one complete exemplary embodiment. Taking the D2D system using OFDM as an example, referring to fig. 2, the power control method may include the steps of:

step S201, detecting whether the D2D link is disconnected, if it is detected that the D2D link is disconnected, proceeding to step S202, otherwise continuing to detect whether the D2D link is disconnected.

Step S202, the transmission of the data channel is stopped.

Step S203, determining whether there is one modulation symbol in the D2D link including at least two communication signals of a synchronization signal, a reference signal and a broadcast signal, if yes, proceeding to step S204, otherwise proceeding to step S205.

Step S204, determining whether the preset priorities of at least two communication signals are the same, if so, proceeding to step S206, otherwise proceeding to step S207.

In step S205, the total transmission power is used to transmit the communication signal included in the modulation symbol.

Step S206, according to the preset priority of at least two communication signals, the total power of transmission is distributed for the transmission of at least two communication signals.

Step S207, the total power of transmission is distributed for the transmission of at least two communication signals according to the sum of the subcarrier numbers corresponding to the at least two communication signals.

Step S208 determines whether an access signal sent by a slave device in the D2D link is received, if yes, step S209 is entered, otherwise step S201 is entered.

Step S209 adjusts the transmission power of the synchronization signal to a first preset power, the transmission power of the reference signal to a second preset power, and the transmission power of the broadcast signal to a third preset power.

According to the power control method, when the D2D system generates a broken chain due to a weak signal, the reference equipment is controlled to stop transmitting the data signal, and then all power of the reference equipment is used for transmitting the synchronous signal, the reference signal and the broadcast signal, so that the slave equipment can accurately reacquire the synchronization and successfully read the broadcast information, and the quick reconstruction of the D2D link is realized.

For example, assume that the D2D system is based on the LTE protocol and adopts the following configuration: FDD (Frequency Division Duplexing), frequency division duplex) mode, 10MHz bandwidth, normal CP (Cyclic Prefix), single antenna, and in this D2D system the synchronization signal (PSS/SSS), reference signal (CRS) and broadcast channel (PBCH) are distributed as follows:

the primary synchronization signal is located at modulation symbol 6 of subframe 0 and subframe 5, and each modulation symbol occupies 62 subcarriers. The secondary synchronization signal is located in modulation symbol 5 of subframe 0 and subframe 5, and each modulation symbol occupies 62 subcarriers. The reference signal is located at 4 modulation symbols of 0, 4, 7, 11 of each subframe, and each modulation symbol occupies 100 subcarriers. The broadcast signal is located at four modulation symbols of 7, 8, 9, 10 of subframe 0 and occupies 48, 72 subcarriers, respectively.

It can be seen that in the above example, symbol 7 of subframe 0 carries both the reference signal (100 subcarriers) and the broadcast signal (48 subcarriers) and the total power P for transmission needs to be shared. If the reference signal and the broadcast signal on symbol 7 are set to the same priority, the subcarrier power settings of the synchronization signal, the reference signal, and the broadcast signal on the respective modulation symbols of subframe 0 may be as shown in table 1.

TABLE 1

Modulation symbol

0

1～3

4

5

6

7

8

9

10

11

Reference signal

P/148

Master synchronization signal

P/62

Secondary synchronization signal

P/62

Broadcast signal

P/148

P/48

P/72

Referring to table 1, modulation symbol 7 carries both reference and broadcast signals, and the total power of transmission needs to be shared, so the subcarrier powers of the reference and broadcast signals on modulation symbol 7 are set to P/148. Further, since the power of the reference signal in all modulation symbols remains unchanged, the power of the reference signal on the other modulation symbols (modulation symbols 0, 4, 11) is also set to P/148. The other subcarrier power settings in table 1 are determined according to the total transmission power and the number of subcarriers, for example, the primary synchronization signal on modulation symbol 6 occupies 62 subcarriers, so the subcarrier power can be set to P/62.

It should be understood that, for the synchronization signal and the subcarrier power of the reference signal and the broadcast signal on other subframes in the D2D communication, the subframe 0 may be referred to for setting, which is not described herein.

Through the power control, when the D2D link is interrupted, the total transmission power of the reference equipment can be completely used for transmitting the synchronous signal, the reference signal and the broadcast signal after the data signal is stopped, so that the D2D link breaking reconstruction can be rapidly realized.

Based on the same inventive concept, referring to fig. 3, the embodiment of the present disclosure further provides a power control apparatus 300, the apparatus 300 may include:

a transmission stopping module 301, configured to stop transmitting a data channel when a device-to-device D2D link is disconnected, where the data channel includes a physical downlink control channel and a physical downlink shared channel;

an obtaining module 302, configured to obtain a total transmission power of the reference device in the D2D link;

the first allocation module 303 is configured to allocate the total transmission power to transmission of a synchronization signal, a reference signal, and a broadcast signal respectively corresponding to each other.

Optionally, the first allocation module 303 is configured to:

when the at least two communication signals are included in the one modulation symbol, the total power of transmission is distributed to be used for the transmission of the at least two communication signals according to the preset priority of the at least two communication signals, wherein the preset priority is used for representing the sequence of the transmission power of the distributed communication signals.

Optionally, the apparatus 300 further includes:

and the first determining module is used for distributing the total power of transmission to be used for transmitting the at least two communication signals according to the duty ratio of the at least two communication signals in the transmission signals when the preset priorities of the at least two communication signals are the same.

Optionally, the apparatus 300 further includes:

The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.

By means of any power control device, when the D2D system generates broken links due to weak signals, the reference equipment is controlled to stop sending data signals, and then all power of the reference equipment is used for sending synchronizing signals, reference signals and broadcast signals, so that the slave equipment can accurately reacquire synchronization and successfully read broadcast information, and rapid reconstruction of the D2D link is achieved.

Based on the same inventive concept, the embodiments of the present disclosure further provide an electronic device, including:

a memory having a computer program stored thereon;

and a processor for executing the computer program in the memory to implement the steps of any of the power control methods described above.

Through the electronic equipment, when the D2D system generates a broken chain due to a weak signal, the reference equipment is controlled to stop sending the data signal, and then all power of the reference equipment is used for sending the synchronous signal, the reference signal and the broadcast signal, so that the slave equipment can accurately reacquire the synchronization and successfully read the broadcast information, and the quick reconstruction of the D2D link is realized.

In one possible approach, a block diagram of the electronic device may be as shown in fig. 4. Referring to fig. 4, the electronic device 400 may include: a processor 401, a memory 402. The electronic device 400 may also include one or more of a multimedia component 403, an input/output (I/O) interface 404, and a communication component 405.

Wherein the processor 401 is configured to control the overall operation of the electronic device 400 to perform all or part of the steps of the power control method described above. The memory 402 is used to store various types of data to support operation at the electronic device 400, which may include, for example, instructions for any application or method operating on the electronic device 400, as well as application-related data, such as transmission power values for synchronization signals, reference signals, and broadcast signals, respectively, and the like.

The Memory 402 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk.

The multimedia component 403 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 402 or transmitted through the communication component 405. The audio assembly further comprises at least one speaker for outputting audio signals. The I/O interface 404 provides an interface between the processor 401 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons.

The communication component 405 is used for wired or wireless communication between the electronic device 400 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 407 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.

In an exemplary embodiment, the electronic device 400 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), digital signal processors (Digital Signal Processor, abbreviated as DSP), digital signal processing devices (Digital Signal Processing Device, abbreviated as DSPD), programmable logic devices (Programmable Logic Device, abbreviated as PLD), field programmable gate arrays (Field Programmable Gate Array, abbreviated as FPGA), controllers, microcontrollers, microprocessors, or other electronic components for performing the power control methods described above.

In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the power control method described above. For example, the computer readable storage medium may be the memory 402 including program instructions described above, which are executable by the processor 401 of the electronic device 400 to perform the power control method described above.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. A method of power control, the method comprising:

determining the total transmission power of reference equipment in the D2D link, wherein the reference equipment is equipment for providing reference timing in the D2D link;

2. The method of claim 1, wherein said allocating the total power of transmission for transmission of synchronization signals, reference signals, and broadcast signals comprises:

3. The method according to claim 2, wherein the method further comprises:

4. The method according to claim 2, wherein the method further comprises:

5. The method of any one of claims 1-4, further comprising:

6. A power control apparatus, the apparatus comprising:

the acquisition module is used for acquiring the total transmission power of reference equipment in the D2D link, wherein the reference equipment is equipment for providing reference timing in the D2D link;

7. The apparatus of claim 6, wherein the first allocation module is to:

8. The apparatus of claim 7, wherein the apparatus further comprises:

9. The apparatus of claim 7, wherein the apparatus further comprises:

10. The apparatus according to any one of claims 6-9, wherein the apparatus further comprises:

11. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any one of claims 1-5.

12. An electronic device, comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to implement the steps of the method of any one of claims 1-5.