WO2021169843A1

WO2021169843A1 - Reflection communication signal power determining method and apparatus, and communication system

Info

Publication number: WO2021169843A1
Application number: PCT/CN2021/076752
Authority: WO
Inventors: 高宽栋; 颜矛; 黄煌
Original assignee: 华为技术有限公司
Priority date: 2020-02-29
Filing date: 2021-02-18
Publication date: 2021-09-02
Also published as: CN113411092A

Abstract

The present application relates to a reflection communication signal power determining method and apparatus, and a communication system, for use in improving the efficiency of determining forward communication power. The reflection communication signal power determining method comprises: a receiver receives a first signal of a reflector, the first signal comprising first power and second power, the first power being used for communication between the receiver and the reflector, the second power being power used when the reflector implements activation, and the second power being lower than or equal to the first power; and after receiving the first signal, the receiver sends a second signal to an excitor, the second signal being used for indicating that the receiver is activated, and the second signal comprising the second power.

Description

Method, device and communication system for determining reflected communication signal power

Cross-references to related applications

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 202010132615.5, and the application title is "A method, device and communication system for determining the power of a reflected communication signal" on February 29, 2020, all of which The content is incorporated in this application by reference.

Technical field

This application relates to the field of communication technology, and in particular to a method, device and communication system for determining the power of a reflected communication signal.

Background technique

In the reflection communication process, the forward communication power and the backward communication power may be different. When the exciter and the receiver are located in two different devices, the forward communication and the backward communication are realized by different devices, and different devices The location is different. At this time, the exciter needs to know whether the forward communication is successful based on whether it receives the signal sent by the receiver, that is, when the exciter determines that the backward communication is successful, it can determine whether the forward communication link has been established. Therefore, after determining the backward communication power, the exciter can determine the forward communication power based on the backward communication power, resulting in low efficiency in determining the forward communication power.

Summary of the invention

The present application provides a method, a device and a communication system for determining the power of a reflected communication signal to improve the efficiency of determining the power of a forward communication.

In a first aspect, an embodiment of the present application provides a method for determining the power of a reflected communication signal. The method includes: a receiver receives a first signal from a reflector, the first signal includes a first power and a second power, and the first signal includes a first power and a second power. A power is used for communication between the receiver and the reflector, the second power is the power used when the reflector is activated, and the second power is less than or equal to the first power; After the receiver receives the first signal, the receiver sends a second signal to the exciter. The second signal is used to indicate that the receiver is activated, and the second signal includes the second signal. power. Specifically, the second power may be the activation power used when the reflector is activated based on the first power.

Through the above method, the exciter can determine that the forward communication link and the backward communication link have been established according to the second signal, determine the backward communication power according to the first power, and determine the backward communication power according to the second signal. Power, determine the forward communication power. Therefore, the method can determine the backward communication power and the forward communication power at the same time, and the forward communication power determination process does not depend on the backward communication power, thereby reducing the steps and time for determining the forward communication power, and improving the determination of the forward communication power. The efficiency of communication power.

In a possible design, the second signal may also include the first power.

In a possible design, the first signal includes the second power, which may specifically mean that the first signal carries first information, and the first information is used to indicate that the reflector is based on the second power. The power is activated; or it may mean that the first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp .

In this design, the initial power can activate the reflector and receiver. If the initial power does not activate the reflector and receiver, the exciter can perform a power ramp on the initial power until the power after the power ramp The reflector and receiver are activated to determine the forward communication power and the backward communication power.

In a possible design, the second signal includes the second power, which may specifically mean that the second signal carries first information, and the first information is used to indicate that the reflector is based on the second power. The power is activated; or it may mean that the second signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp .

In a possible design, the first information or the second information may include m, and m may indicate that the second power obtained after the m-th power ramp of the exciter activates the reflector , M is a non-negative integer.

In this design, if the reflector and receiver are not activated, the exciter can perform a power ramp until the power after the power ramp activates the reflector and receiver. The receiver sends m to the exciter, and the exciter can follow this m determines the second power that activates the reflector, thereby determining the forward communication power.

In a second aspect, an embodiment of the present application also provides a method for determining the power of a reflected communication signal. The method includes: a reflector receives a third signal sent by an exciter, the third signal includes a first power, and the first power is used for Communication between the exciter to the reflector and the receiver; the reflector sends a first signal to the receiver, the first signal includes the first power and the second power, the The second power is the power used when the reflector is activated, and the second power is less than or equal to the first power.

In a possible design, the first signal includes the second power. Specifically, it may mean that the first signal carries first information, and the first information is used to instruct the reflector to perform based on the second power. Or it may mean that the first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.

In a possible design, the second information includes m, and the m may indicate that the reflector is activated by the second power obtained after the m-th power ramp of the exciter, and m is a non-negative integer.

In this design, if the reflector and receiver are not activated, the exciter can perform a power ramp until the power after the power ramp activates the reflector and receiver, the reflector sends m to the receiver, and the receiver sends m For the exciter, the exciter can determine the second power for activating the reflector according to the m, thereby determining the forward communication power.

In a third aspect, an embodiment of the present application also provides a method for determining the power of a reflected communication signal. The method includes: the exciter sends a third signal to the reflector, the third signal includes a first power, and the first power is used for The communication between the exciter to the reflector and the receiver; the exciter receives a second signal fed back by the receiver, the second signal is used to indicate that the receiver is activated, and the The second signal includes a second power, the second power is the power used when the reflector is activated, the second power is less than or equal to the first power; the exciter is based on the first power , Determine the backward communication power; and determine the forward communication power according to the second power.

In a possible design, the above method may further include: if the exciter does not receive the second signal fed back by the receiver, the exciter may perform at least one power ramp on the first power, And send an update signal to the reflector after each power ramp, the update signal carries the third power obtained from the latest power ramp, until the feedback signal of the receiver is received, the feedback signal The fourth power is carried in the reflector, the fourth power is the power used when the reflector is activated, and the fourth power is less than or equal to the third power carried in the update signal sent last time; the exciter Determine the backward communication power according to the third power carried in the update signal sent last time; and determine the forward communication power according to the fourth power.

In this design, if the reflector and receiver are not activated, the exciter can perform at least one power ramp until the power after the power ramp activates the reflector and receiver, and the exciter determines the forward direction based on the power after the power ramp Communication power and backward communication power.

In a possible design, the second signal includes the second power. Specifically, it may mean that the second signal carries first information, and the first information is used to instruct the reflector to perform based on the second power. Activated.

In a possible design, the feedback signal carries a fourth power. Specifically, it may mean that the feedback signal carries second information, and the second information is used to instruct the reflector to perform based on the fourth power. Activated.

In a possible design, the second information may include m, and m may indicate that the third power obtained after the m-th power ramp of the exciter activates the reflector, and the fourth power Is the third power obtained after the m-th power climbing, and m is a non-negative integer.

In this design, the reflector can send m to the receiver, and the receiver sends m to the exciter. The exciter can determine the power to activate the reflector based on the m, thereby determining the forward communication power.

In a possible design, the determining, by the exciter, the forward communication power according to the second power, may include: if the first power is the initial power, the exciter may perform power down on the initial power. The power obtained after the slope is used as the second power, and the forward communication power is determined according to the second power.

In this design, if the initial power activates both the reflector and the receiver, the exciter can power down the initial power to determine the forward communication power. Generally, the forward communication power is less than or equal to the backward communication power. The exciter performs a power downslope on the initial power to determine the forward communication power. In the subsequent communication process, the energy consumption of the exciter can be reduced, and the excitation signal can also be reduced. Signal interference to other equipment.

In a possible design, the initial power is determined according to one or more of the power expected to be received by the receiver, the path loss of the forward communication link, or the path loss of the backward communication link.

In a fourth aspect, an embodiment of the present application also provides a device for determining the power of a reflected communication signal. The device has the function of an exciter, a reflector, or a receiver that implements the above method, and includes the steps or steps described in the above method. The parts corresponding to the function (means). The steps or functions can be realized by software, or by hardware (such as a circuit), or by a combination of hardware and software. The exciter or receiver is a network device or terminal device.

In a possible design, the foregoing device includes one or more processors and communication units. The one or more processors are configured to support the device to perform the corresponding functions of the exciter, reflector or receiver in the above method.

Optionally, the device may further include one or more memories, where the memory is used for coupling with the processor and stores necessary program instructions and/or data for the device. The one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.

In another possible design, the above device includes a transceiver, a processor, and a memory. The processor is used to control the transceiver or the input/output circuit to send and receive signals, the memory is used to store a computer program, and the processor is used to run the computer program in the memory so that the device executes the first aspect, the second aspect, and the third aspect In any possible design in the first aspect, in any possible design in the second aspect, or in any possible design in the third aspect, the method of completing the exciter, reflector or receiver.

Optionally, the device may further include one or more memories, which are used for coupling with the processor and store necessary program instructions and/or data for the exciter, reflector or receiver. The one or more memories may be integrated with the processor, or may be provided separately from the processor. This application is not limited.

The device can be located in an exciter, reflector or receiver, or it can be an exciter, reflector or receiver.

In another possible design, the above device includes a transceiver, a processor, and a memory. The processor is used to control the transceiver or the input/output circuit to send and receive signals, the memory is used to store computer programs, and the processor is used to run the computer programs in the memory so that the device executes the first aspect, the second aspect, and the third aspect, In any possible design in the first aspect, in any possible design in the second aspect, or in any possible design in the third aspect, a method for completing the exciter, reflector or receiver.

In the fifth aspect, the embodiments of the present application also provide a computer-readable storage medium for storing a computer program. The computer program includes a computer program for executing the first aspect, the second aspect, the third aspect, or any one of the first aspect. In the design, the instruction of the method in any possible design in the second aspect or any possible design in the third aspect.

In a sixth aspect, the embodiments of the present application also provide a computer program product, the computer program product comprising: computer program code, when the computer program code runs on a computer, the computer executes the first and second aspects above , The third aspect, or the method in any one of the possible implementation manners of the first aspect, the second aspect, and the third aspect.

In a seventh aspect, the embodiments of the present application also provide a chip system, which can implement the first aspect, the second aspect, the third aspect, and any of the possible designs in the first aspect through a transceiver. , A function in any possible design in the second aspect or any possible design in the third aspect, for example, receiving or sending data and/or information involved in the foregoing method through a transceiver, for example. In a possible design, the chip system further includes a memory, and the memory is used to store program instructions and/or data. The chip system can be composed of chips, and can also include chips and other discrete devices.

In an eighth aspect, an embodiment of the present application also provides a communication system, which includes an exciter, a reflector, and a receiver, and the receiver is used to implement the above-mentioned first aspect. The reflector is used to implement the method described in the second aspect and any possible design of the second aspect, and the exciter is used to implement the third aspect and the method described in any possible design of the third aspect. Methods.

For the technical effects that can be achieved from the fourth aspect to the eighth aspect above, please refer to the technical effects that can be achieved in the first aspect, the second aspect or the third aspect, and will not be repeated here.

Description of the drawings

FIG. 1 is a schematic diagram of a communication architecture provided by an embodiment of this application;

FIG. 2 is a schematic diagram of another communication architecture provided by an embodiment of this application;

FIG. 3 is a schematic structural diagram of an exciter provided by an embodiment of the application;

4 is a schematic structural diagram of a reflector provided by an embodiment of the application;

FIG. 5 is a schematic structural diagram of another reflector provided by an embodiment of the application;

FIG. 6 is a schematic structural diagram of a receiver provided by an embodiment of the application;

FIG. 7 is a schematic diagram of a process of determining reflected communication signal power according to an embodiment of the application;

FIG. 8 is a schematic diagram of a process of determining reflected communication signal power according to an embodiment of the application;

FIG. 9 is a structural diagram of an apparatus for determining reflected communication signal power provided by an embodiment of the application;

FIG. 10 is a structural diagram of an apparatus for determining reflected communication signal power provided by an embodiment of the application.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

This application will present various aspects, embodiments, or features around a system that may include multiple devices, components, modules, and the like. It should be understood and understood that each system may include additional devices, components, modules, etc., and/or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. In addition, a combination of these schemes can also be used.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, illustration, or illustration. Any embodiment or design solution described as an "example" in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. Rather, the term example is used to present the concept in a concrete way.

The network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

Hereinafter, some terms of the embodiments of the present application will be explained to facilitate the understanding of those skilled in the art.

1) Reflective communication (backscatter communication), a technology that requires a dedicated radio frequency excitation source and additional spectrum resources for communication, and is suitable for extremely low-power, low-cost passive communication fields for IoT applications. The reflection communication is also called backscatter communication, passive communication or ambient communication. In some cases (for example, when the power supply mode of the reflector is passive), the reflection communication It can also be called passive communication.

The reflective communication system can include exciters, reflectors and receivers. In one implementation, as shown in Fig. 1, the exciter and the receiver may be located in two different nodes. In another implementation manner, the exciter and the receiver may be integrated into the same node. As shown in FIG. 2, the exciter and the receiver are integrated in a reader. The communication link between the exciter and the receiver is a through communication link, the communication link between the exciter and the reflector is a forward communication link, and the reflector and the reflector are forward communication links. The communication link between the receivers is called the backward communication link. The signal used by the forward communication link can be referred to as the forward communication signal. The forward communication link communicates while charging the reflector, that is, the exciter can carry data information while exciting and charging the reflector. Used for communication. Exemplarily, the signal may be an amplitude keying (Amplitude Shift Keying, ASK) signal.

2) The exciter is used to send wireless signals (also called energy signals or excitation signals). The exciter may also be referred to as an incentive communication device, a helper, an interrogator, or a reader. The exciter can be a network device or a terminal device.

As shown in FIG. 3, for example, the exciter may include an exciter excitation signal unit, a power distribution unit, and a transmission signal unit. The exciter excitation signal unit may be used to excite the generation of wireless signals, and the power distribution The unit may be used to allocate the power of the wireless signal, and the signal transmitting unit may be used to transmit the wireless signal with the power allocated by the power allocation unit, that is, the wireless signal includes the power, or the wireless signal The signal carries the power.

3) The reflector is used to receive the wireless signal sent by the exciter, obtain the power or signal energy in the wireless signal, and carry the signal of the reflector itself on the reflected signal to realize the reflection of the signal. The reflector is also called a reflection communication device, a backscatter device, an ambient signal device, a radio frequency identifier, a radio frequency identification (RFID), or a radio frequency tag. The power supply of the reflector When the mode is passive, the reflector can also be called a passive device, and when the power supply mode of the reflector is semi-active, the reflector can also be called a semi-active device. Source device (semi-passive device).

According to the different working modes or capabilities of the reflector, the power supply mode of the reflector can be divided into passive and semi-active. The power supply mode of passive means that the reflector has no external power supply system, and the power supply mode is Semi-active means that the reflector is connected to a power supply system (such as a battery), and part of the communication process requires the power supply system to supply power. Passive or semi-active power supply modes can achieve low-power communication.

Figure 4 is a schematic diagram of a possible structure of the reflector. The data reflected by the reflector can be an identification (such as a radio frequency identification RFID) or other data (such as temperature data collected by a temperature sensor and/or Humidity data collected by the humidity sensor, etc.). When receiving energy, the microprocessor of the reflector communicates with the charging module; when reflecting signals, the microprocessor of the reflector communicates with the reflection module. The microprocessor is used for receiving data processing and reflection data processing.

Fig. 5 is a schematic diagram of another possible structure of the reflector. The reflector may include a reflector data receiving unit, a data detection unit, and a data reflection signal unit. The reflector data receiving unit may be used for To receive a wireless signal, the data detection unit may be used to detect data in the wireless signal, and the data reflection unit may be used to carry the data and the signal of the reflector itself on the reflected signal, and send the Reflected signal.

4) The receiver is used to receive the reflected signal from the reflector and demodulate the data carried on the reflected signal. The receiver is also called a receiving communication device or a receiving device.

As shown in FIG. 6, exemplarily, the receiver may include a receiver signal receiving unit, a data detecting unit, and a data sending unit. The receiver signal receiving unit may be used to receive reflected signals, and the data detecting unit It can be used to demodulate the data carried on the reflected signal, and the sending data unit can be used to send the data to other devices or feed back response information of the data to the exciter. The exciter can be a network device or a terminal device.

5) Pathloss, also known as path loss, refers to the signal power loss introduced by the transmission distance and the transmission environment between the sender and the receiver. It is a quantity strongly related to transmission distance, transmission environment and carrier frequency. It is understandable that in different communication scenarios, the sender and the receiver are not fixed. For example, in Figure 1, in the direct communication, the sender may be a receiver, and the receiver may be an incentive In the forward communication, the sender may be an exciter and the receiver may be a reflector. In the backward communication, the sender may be a reflector and the receiver may be a receiver.

6) Network equipment refers to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network. The network device may be a node in a radio access network, may also be called a base station, or may be called a radio access network (RAN) node (or device). At present, some examples of network equipment are: gNB, transmission reception point (TRP), evolved Node B (evolved Node B, eNB), radio network controller (RNC), Node B (Node B) B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (baseband unit) , BBU), or wireless fidelity (Wifi) access point (AP), etc. In addition, in a network structure, the network device may include a centralized unit (CU) node and a distributed unit (DU) node. The CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions. The DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.

In the embodiments of the present application, the device used to implement the function of the network device may be a network device, or a device capable of supporting the network device to implement the function, such as a chip system, and the device may be installed in the network device.

7) Terminal devices, including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems. The terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communication ( machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) , Remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device) and so on. For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, mobile devices with built-in computers, and so on. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants, PDA), and other equipment. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The various terminal devices described above, if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).

In the embodiment of the present application, the terminal device may also include a relay. Or it can be understood that everything that can communicate with the base station can be regarded as a terminal device.

In the embodiments of the present application, the device for realizing the function of the terminal device may be a terminal device, or a device capable of supporting the terminal device to realize the function, such as a chip system, and the device may be installed in the terminal device. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices.

The "and/or" in this application describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone. This situation. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

At least once referred to in this application refers to one or more times, and multiple times referred to refers to two or more times.

In addition, it should be understood that in the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing description, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating Or imply the order.

The technical solutions of the embodiments of the present application can be applied to a reflection communication system, and the reflection communication system can be applied to a traditional mobile communication system. That is, the reflection communication system can be used in combination with a traditional mobile communication system. For example, the mobile communication system can be a first 4th Generation (4G) communication system (for example, long term evolution (LTE) system), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th Generation (5G) ) Communication systems (for example, new radio (NR) systems), and future mobile communication systems, etc.

In order to facilitate the understanding of the embodiments of the present application, the application scenarios of the embodiments of the present application are described.

Generally, during reflection communication, the exciter can send a signal to the reflector, the reflector can send a signal to the receiver, and the receiver can send a signal to the exciter, but the reflector cannot send a signal to the exciter. And the power used by the forward communication link (also called forward communication power) and the power used by the backward communication link (also called backward communication power) may be different. When the exciter and the receiver are located in two different devices, the forward communication and the backward communication are realized by different devices, and the positions of the different devices are also different. Then the exciter needs to know whether the forward communication is successful based on whether it receives the signal sent by the receiver, that is, when the exciter determines that the backward communication is successful, it can determine whether the forward communication link has been established. Therefore, after determining the backward communication power, the exciter can determine the forward communication power based on the backward communication power, resulting in low efficiency in determining the forward communication power.

In the power distribution method provided in the prior art, power is distributed based on the two-point structure of network equipment and terminal, but the reflective communication system is a three-point structure of exciter, reflector and receiver. Therefore, the power in the prior art The distribution method is not suitable for reflection communication. Therefore, the problem of determining the low efficiency of the forward communication power still exists.

In view of this, in order to improve the efficiency of determining the forward communication power, this application proposes a method for determining the reflected communication signal power. The forward communication power can be determined in the process of determining the backward communication power. Therefore, after determining the backward power, no It is necessary to additionally determine the forward power, thereby reducing the steps and time for determining the forward communication power.

In this method, the receiver receives the first signal of the reflector, the first signal includes a first power and a second power, the second power is the activation power used when the reflector is activated, and the first power is used for In the communication between the receiver and the reflector, after the receiver receives the first signal, the receiver sends a second signal to the exciter, and the second signal is used to indicate activation The receiver, and the second signal includes the second power. In this way, the exciter can determine that the forward communication link and the backward communication link have been established according to the second signal, determine the backward communication power according to the first power, and according to the second power, Determine the forward communication power. Therefore, the method can determine the backward communication power and the forward communication power at the same time, and the forward communication power determination process does not depend on the backward communication power, thereby reducing the steps and time for determining the forward communication power, and improving the determination of the forward communication power. The efficiency of communication power.

The embodiment of the present application provides a method for determining the power of a reflected communication signal, and the method can be applied to the reflection communication system shown in FIG. 1 and FIG. 2. The specific process of the method for determining the reflected communication signal power will be described in detail below with reference to FIG. 7. As shown in Figure 7, the process includes:

S701: The exciter sends a third signal to the reflector, the reflector receives the third signal, and the third signal includes the first power.

The first power is used for communication from the exciter to the reflector and receiver. For example, the first power is used for (forward) communication between the exciter and the reflector, and/or the first power is used for the (forward) communication between the reflector and the receiver ( Backward) communication. The first power can also be expressed as the power used by the current exciter to send the excitation signal.

The third signal can be understood as an excitation signal, and the exciter attempts to excite the reflector and the receiver through a third signal carrying the first power, thereby establishing a forward communication link and a backward communication link Road, realize forward communication and backward communication. It is understandable that before this S701, the reflector may be in an activated state, or may be in an inactive state.

In a possible implementation manner, the first power is the initial power, and the initial power may be based on the power P0 expected to be received by the receiver, the path loss of the direct communication link, and the path of the forward communication link. One or more of the loss PL2 or the path loss PL1 of the backward communication link is determined. The exciter may be configured with one of the power P0 expected to be received by the receiver, the path loss PL1 of the backward communication link, the path loss PL2 of the forward communication link, and the path loss of the through communication link. Or multiple items, wherein the power P0 that the receiver expects to receive may be related to a random access preamble or subcarrier spacing. Optionally, the path loss of the through communication link and the path loss of the backward communication link can be converted mutually. For example, the exciter can directly determine the path loss of the through communication link as the path of the backward communication link. Or the exciter may directly determine the path loss of the backward communication link as the path loss of the through communication link. The network device may indicate the size of PL2 or indicate the size of PL1.

For example, the exciter may determine the power P0 expected to be received by the receiver as the initial power. For another example, the exciter can comprehensively consider the power and path loss expected to be received by the receiver, and according to P0, PL1 and PL2, the initial power PP can be determined to be min{Pmax, P0+PL1+PL2+Delta1}, that is The minimum value among Pmax and P0+PL1+PL2+Delta1 is the initial power PP. For another example, when setting the power expected to be received by the receiver, the path loss of the forward communication link is taken into account, that is, here P0=the power expected to be received by the above-mentioned receiver+PL2, and the exciter is based on P0 and PL1 , It can be determined that the initial power PP is min{Pmax, P0+PL1+Delta1}, that is, the minimum value of Pmax and P0+PL1+Delta1 is the initial power PP. Among them, Delta1 is an optional parameter, which represents one or more power factors, and Pmax represents the maximum power sent by the terminal device.

In another possible implementation manner, the first power may also be power obtained after the exciter performs at least one power ramp. Generally, when the exciter uses the initial power to transmit the third signal, it may not be able to receive the second signal fed back by the receiver, so the exciter can perform at least one power ramp on the initial power, After each power match, an update signal is sent to the reflector, and the update signal carries the third power obtained from the latest power ramp, until the feedback signal of the receiver is received, and the feedback signal carries There is a fourth power, the fourth power is the activation power used when the reflector is activated, and the fourth power is less than or equal to the third power carried in the update signal sent last time. The update signal may be understood as an updated third signal, and the third power obtained by the latest power matching carried in the update signal may be understood as the updated first power carried by the updated third signal. The feedback signal may be understood as the second signal sent by the receiver for the updated third signal. The power ramp means power increase. Each time an excitation signal is sent, the power of the sent signal is greater than the power of the previous excitation signal by a certain value, and the value may be fixed or non-fixed.

When the exciter performs power ramping, it can perform power ramping on the initial power or the power obtained from the latest power ramp at the moment. For example, the power ramp process may satisfy the following formula: P1=PP+(Na)*DeltaP+delta2, where P1 is the power obtained after power ramping, PP is the initial power, and N represents the current Nth time Perform power ramp, N is a non-negative integer, a, DeltaP, and delta2 are preset values, DeltaP is the power ramp factor, delta2 is other power factors other than the power ramp factor, delta2 is an optional parameter, for example The delta2 is a power factor related to the rate of the random access preamble. If the exciter performs a power ramp on the initial power, N=0; if the exciter performs a power ramp on the power obtained from the latest power ramp, N=the number of current power ramps -1, for example, excitation The exciter performs a power ramp on the power obtained by the second power ramp, that is, the exciter is currently performing a third power ramp, N=3-1=2. a can be any numerical value, for example, a is any integer, for example, a is 1.

The above two possible implementation manners can be used in combination, and the specific process can be referred to as shown in FIG. 8 below, and the process shown in FIG. 8 will be described in detail below.

The first power implicitly contains the power used to excite the reflector. Therefore, after the reflector receives the third signal, it can be activated according to the first power carried in the third signal. If the reflector When activated, the reflector may determine that the first power is the activation power used when the reflector is activated. To facilitate distinction, the activation power used when the reflector is activated is described as the second power in the embodiment of the present application. Specifically, the second power is the activation power used when the reflector is activated based on the first power. The first and/or second power may be an index value. When it is an index value, it may represent the excitation signal sent for the nth time, or it may be a specific value, which represents the power of sending the third signal.

S702: The reflector sends a first signal to the receiver, the receiver receives the first signal, the first signal includes/carries the first power and the second power, and the second power Is the activation power used when the reflector is activated, and the second power is less than or equal to the first power.

If the reflector is activated, the reflector sends a first signal to the receiver, the first signal including the first power and the second power. Exemplarily, the reflector modulates the second power onto the first signal. If the first power does not activate the reflector, the reflector will not send the first signal to the receiver.

The first signal may be understood as a reflected signal of the third signal, that is, the reflector reflects the third signal to obtain the first signal. The first signal includes a first power and a second power. Wherein, the second power may be the initial power, or the second power may be the power obtained by performing a power ramp on the exciter. Generally, the second power used for forward communication is less than or equal to the first power used for backward communication.

Optionally, the first signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or the first signal carries second information, and the first information The second information is used to indicate that the reflector is activated based on the second power (that is, the fourth power) obtained after the exciter performs at least one power ramp. Exemplarily, the first information or the second information includes m, where m is a power index value for forward communication, and m is used to indicate that the second power obtained after the m-th power ramp of the exciter is activated For the reflector, m is a non-negative integer. If the reflector is activated by the initial power, m=0.

S703: The receiver sends a second signal to the exciter, the exciter receives the second signal, the second signal is used to indicate that the receiver is activated, and the second signal includes all述second power.

If the first power successfully activates the receiver, the receiver will send a second signal to the exciter, which can inform the exciter that the receiver has been activated or the receiver has received the signal reflected by the reflector, and forward communication The link and the backward communication link have been established, so that the exciter can determine the backward communication power according to the first power. In addition, the second signal includes the second power, so that the exciter can determine the forward communication power according to the second power, so as to determine the forward communication power in the process of determining the backward communication power.

If the first power does not activate the receiver, the receiver will not send the second signal to the exciter. Therefore, if the exciter receives the second signal sent by the receiver, the exciter can determine that the reflector and the receiver are activated.

Optionally, the second signal may also include the first power.

Exemplarily, the second signal includes the second power, which can be implemented by carrying first information in the second signal, and the first information is used to indicate that the reflector performs the operation based on the second power. Activation; or implemented by the second signal carrying second information, the second information is used to instruct the reflector to perform at least one power ramp on the first power based on the exciter to obtain the second The power (that is, the fourth power) is activated. Exemplarily, the first information or the second information includes m, where m is a power index value for forward communication, and m is used to indicate that the second power obtained after the m-th power ramp of the exciter is activated For the reflector, m is a non-negative integer. If the reflector is activated by the initial power, m=0.

S704: The exciter determines the backward communication power according to the first power; and determines the forward communication power according to the second power.

In a possible implementation manner, the exciter may directly determine the first power as the backward communication power, and directly determine the second power as the forward communication power.

In another possible implementation manner, the exciter may perform power ramp or power downhill on the first power to determine the backward communication power; perform power ramp or power down on the second power Slope, determine the forward communication power. For example, if the first power is the initial power, the exciter may perform a power downhill on the initial power to determine the forward communication power.

For example, the power downhill process may satisfy the following formula: P2=PP-(Mb)*DeltaQ+delta3, where P2 is the power obtained after power downhill is performed on the PP, PP is the initial power, and M represents The current is the M-th power downhill, M is a non-negative integer, b, DeltaQ and delta3 are preset values, DeltaQ is the power downhill factor, delta3 is the power factor other than the power downhill factor, delta3 is An optional parameter, for example, the delta3 is a power factor related to the rate of the random access preamble. b can be any numerical value, for example, b is any integer, for example, b is 1.

In addition, as shown in S701, if the exciter does not receive the second signal fed back by the receiver, the exciter performs n power ramps on the first power, and after each power ramp Send an update signal to the reflector, the update signal carries the third power obtained from the latest power ramp, until the feedback signal of the receiver is received, the feedback signal carries the fourth power, so The fourth power is the activation power used when the reflector is activated, the fourth power is less than or equal to the third power carried in the update signal sent last time, n is a positive integer, and m is less than or equal to n. The exciter may determine the backward communication power according to the third power carried in the update signal sent last time; and determine the forward communication power according to the fourth power. Optionally, the fourth power carried in the feedback signal includes: the feedback signal carries second information, and the second information is used to indicate that the reflector is activated based on the fourth power.

After the exciter determines the forward communication power and the backward communication power, in the subsequent communication process, the exciter can communicate with the reflector according to the forward communication power, which can reduce all The energy consumption of the exciter can also reduce the signal interference of the excitation signal to other devices.

Taking Figure 8 as an example, the process of determining the reflected communication signal power will be described in detail, including the following steps:

S801: The exciter determines the initial power as the first power.

S802: The exciter sends a third signal to the reflector, where the third signal includes the first power. The first power is used to excite the reflector and the receiver.

S803: After receiving the third signal, the reflector judges whether the first power activates the reflector; if yes, proceed to S804; if not, proceed to S805.

S804: The reflector performs activation processing according to the first power, and determines the power used when the reflector is activated as the second power, the transmitter sends a first signal, and the first signal includes The first power and the second power; wherein the second power is less than the first power; then S806 is performed.

S805: The reflector does not send the first signal; proceed to S810.

S806: After receiving the first signal, the receiver determines that the first power activates the receiver; if yes, proceed to S807; if not, proceed to S808.

S807: The receiver sends a second signal, where the second signal includes the second power; perform S809. The second signal is used to indicate that the receiver is activated.

S808: The receiver does not send the second signal; proceed to S810.

S809: The exciter determines the backward communication power according to the first power; and determines the forward communication power according to the second power.

S810: The exciter performs a power ramp to the first power, and uses the power after the power ramp to update the first power; return to S802.

For example, if the exciter sends a third signal carrying the initial power, and the exciter receives a second signal fed back by the receiver, the power index value of the forward communication carried in the second signal m is 0, the exciter may determine the initial power as the backward communication power, and the exciter may also perform a power downhill on the initial power to determine the forward communication power.

For another example, if the exciter sends a third signal carrying the initial power, the exciter does not receive the second signal fed back by the receiver; the exciter performs the first to fourth power ramps The power obtained at the time does not activate the reflector, and the exciter does not receive the second signal fed back by the reflector; the exciter performs the fifth power ramp to obtain the power P1, if the P1 activates all The reflector but the receiver is not activated, and the exciter does not receive the second signal fed back by the reflector; when the exciter performs the 6-10th power ramp, after each power ramp , The power obtained by each power ramp is carried in the third signal, and each time the reflector receives the third signal, it modulates the power index value 5 of the forward communication on the first signal, and modulates the first signal. A signal is sent to the reflector. If the power P2 obtained until the 10th power ramp activates the receiver, the receiver sends a second signal to the exciter, and the second signal carries There are the power index value 5 of the forward communication and the power P2 obtained by the 10th power ramp. The exciter determines the power P1 during the fifth power ramp according to the power index value 5 of the forward communication, determines the forward communication power according to the power P1, and the exciter determines the forward communication power according to the P2, Determine the backward communication power.

The above describes in detail the method for determining the reflected communication signal power of the embodiment of the present application with reference to FIGS. 1 to 8. Based on the same technical concept as the foregoing method for determining the reflected communication signal power, an embodiment of the present application also provides a method for determining the reflected communication signal power. The device, as shown in FIG. 9, the reflected communication signal power determination device 900 includes a processing unit 901 and a transceiving unit 902. The device 900 can be used for the methods described in the above method embodiments applied to transceivers, reflectors or exciters. .

In one embodiment, the device 900 may be applied to a transceiver. Specifically, the processing unit 901 is configured to receive the first signal reflected by the reflector through the transceiver unit 902, where the first signal includes a first power and a second power, and the first power is used for the receiver and the reflector. The second power is the power used when the reflector is activated, and the second power is less than or equal to the first power; and the second power is sent to the exciter through the transceiver unit 902 Signal, the second signal includes the second power, and the second signal is used to indicate that the receiver is activated.

In an implementation manner, the second signal may further include the first power.

Specifically, the first signal includes the second power, and may carry first information for the first signal, and the first information is used to indicate that the reflector is activated based on the second power; or The first signal may carry second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.

Specifically, the second signal includes the second power, and may carry first information for the second signal, and the first information is used to indicate that the reflector is activated based on the second power; or The second signal may carry second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.

In an implementation manner, the second information may be m, the m indicates that the second power obtained after the m-th power ramp of the exciter activates the reflector, and m is a non-negative integer.

In another embodiment, the device 900 may also be applied to a reflector. Specifically, the processing unit 901 is configured to receive a third signal sent by the exciter through the transceiver unit 902, where the third signal includes a first power, and the first power is used for the transition from the exciter to the reflector and the receiver. And sending a first signal to the receiver through the transceiver unit 902, the first signal including the first power and the second power, and the second power is when the reflector is activated The used power, the second power is less than or equal to the first power.

Specifically, the first signal includes a second power, and may carry first information for the first signal, and the first information is used to indicate that the reflector is activated based on the second power; or may be The first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.

Exemplarily, the second information may be m, where m indicates that the second power obtained after the m-th power ramp of the exciter activates the reflector, and m is a non-negative integer.

In yet another embodiment, the device 900 may also be applied to an exciter. Specifically, the transceiver unit 902 is configured to send a third signal to the reflector, where the third signal includes a first power, and the first power is used for communication from the exciter to the reflector and the receiver; and Receive a second signal fed back by the receiver, the second signal is used to indicate that the receiver is activated, and the second signal includes a second power, the second power is when the reflector is activated The used power, the second power is less than or equal to the first power; the processing unit 901 is configured to determine the backward communication power according to the first power; and determine the forward communication according to the second power power.

In an implementation manner, the processing unit 901 may also perform at least one power ramp on the first power when the transceiver unit 902 does not receive the second signal fed back by the receiver, and perform at least one power ramp on the first power every time. After the power ramps up, the transceiver unit 902 sends an update signal to the reflector, and the update signal carries the third power obtained from the latest power ramp until the transceiver unit 902 receives the receiver's Up to the feedback signal, the feedback signal carries a fourth power, the fourth power is the power used when the reflector is activated, and the fourth power is less than or equal to the fourth power carried in the update signal sent last time Third power; and determine the backward communication power according to the third power carried in the update signal sent last time; and determine the forward communication power according to the fourth power.

In an implementation manner, the second signal includes a second power, and the second signal may carry first information, and the first information is used to indicate that the reflector is activated based on the second power.

In an implementation manner, the feedback signal carries a fourth power, and the feedback signal may carry second information, and the second information is used to indicate that the reflector is activated based on the fourth power.

In an implementation manner, the second information may be m, where m indicates that the third power obtained after the m-th power ramp of the exciter activates the reflector, and the fourth power is the m-th power The third power obtained after climbing, m is a non-negative integer.

In an implementation manner, if the first power is the initial power, when the processing unit 901 determines the forward communication power according to the second power, it may specifically perform a power downhill on the initial power and use the power The power obtained after the downhill is used as the second power, and then the second power is used to determine the forward communication power.

Exemplarily, the initial power may be, but not limited to, determined according to one or more of the power expected to be received by the receiver, the path loss of the forward communication link, or the path loss of the backward communication link, This application is not limited here.

It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. In addition, each functional unit in each embodiment of the present application It can be integrated into one processing unit, or it can exist alone physically, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. For example, Figure 3, Figure 5 and Figure 6 above.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

Based on the same technical concept as the foregoing method for determining the reflected communication signal power, as shown in FIG. 10, an embodiment of the present application also provides a schematic structural diagram of an apparatus 1000 for determining the reflected communication signal power. The device 1000 can be used to implement the method described in the above method embodiment applied to a receiver, a reflector or an exciter, and reference may be made to the description in the above method example.

The device 1000 includes one or more processors 1001. The processor 1001 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processor can be used to control communication devices (such as base stations, terminals, or chips), execute software programs, and process data in the software programs. The communication device may include a transceiving unit to implement signal input (reception) and output (transmission). For example, the transceiver unit may be a transceiver, a radio frequency chip, or the like.

The device 1000 includes one or more processors 1001, and the one or more processors 1001 can implement the receiver, reflector, or exciter method in the above-mentioned embodiment.

Optionally, the processor 1001 may implement other functions in addition to implementing the methods in the above-mentioned embodiments.

Optionally, in a design, the processor 1001 may execute instructions to make the apparatus 1000 execute the method described in the foregoing method embodiment. The instructions may be stored in whole or in part in the processor, such as instruction 1003, or may be stored in whole or in part in the memory 1002 coupled with the processor, such as instruction 1004, or the

instructions

1003 and 1004 can be used together to make The apparatus 1000 executes the method described in the foregoing method embodiment.

In another possible design, the communication device 1000 may also include a circuit, which may implement the functions of the receiver, reflector, or exciter in the foregoing method embodiment.

In another possible design, the device 1000 may include one or more memories 1002, on which instructions 1004 are stored, and the instructions may be executed on the processor, so that the device 1000 executes the foregoing method The method described in the examples. Optionally, data may also be stored in the memory. The optional processor may also store instructions and/or data. For example, the one or more memories 1002 may store the corresponding relationship described in the foregoing embodiment, or related parameters or tables involved in the foregoing embodiment. The processor and the memory can be provided separately or integrated together.

In another possible design, the device 1000 may further include a transceiver 1005 and an antenna 1006. The processor 1001 may be referred to as a processing unit, which controls a device (terminal or base station). The transceiver 1005 may be called a transceiver, a transceiver circuit, or a transceiver unit, etc., and is used to implement the transceiver function of the device through the antenna 1006.

It should be noted that the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

The embodiment of the present application also provides a computer-readable medium on which a computer program is stored. When the computer program is executed by a computer, the reflection described in any of the above-mentioned method embodiments applied to the receiver, the reflector, or the exciter is realized. Communication signal power determination method.

The embodiments of the present application also provide a computer program product that, when executed by a computer, implements the reflected communication signal power determination method described in any of the foregoing method embodiments applied to a receiver, a reflector, or an exciter.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a high-density digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (for example, a solid state disk (Solid State Disk, SSD)) etc.

An embodiment of the present application also provides a device for determining the power of a reflected communication signal, including a processor and an interface; the processor is configured to execute the method described in any of the above-mentioned embodiments of the method applied to the receiver, the reflector, or the exciter Reflected communication signal power determination method.

It should be understood that the foregoing reflected communication signal power determination device may be a chip, and the processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; When implemented by software, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory, and the memory may be integrated in the processor, may be located outside the processor, and exist independently.

An embodiment of the present application also provides a communication system. The communication system includes an exciter, a reflector, and a receiver with the above-mentioned functions, and is used to perform any of the above-mentioned method embodiments applied to the receiver, reflector, or exciter. The described reflected communication signal power determination method. The system can be shown in Figure 1 or Figure 2, please refer to the previous description for details, and will not be repeated here.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both, in order to clearly illustrate the hardware and software Interchangeability, in the above description, the composition and steps of each example have been generally described in accordance with the function. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described system, device, and unit may refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method can be implemented in other ways. For example, the device embodiments described above are only illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated. To another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

Through the description of the above implementation manners, those skilled in the art can clearly understand that this application can be implemented by hardware, firmware, or a combination of them. When implemented by software, the above-mentioned functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on the computer-readable medium. The computer-readable medium includes a computer storage medium and a communication medium, where the communication medium includes any medium that facilitates the transfer of a computer program from one place to another. The storage medium may be any available medium that can be accessed by a computer. Take this as an example but not limited to: computer readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or can be used to carry or store instructions or data in the form of structure The desired program code and any other medium that can be accessed by the computer. also. Any connection can suitably become a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , Fiber optic cable, twisted pair, DSL or wireless technologies such as infrared, wireless and microwave are included in the fixing of the media. As used in this application, Disk and disc include compact discs (CD), laser discs, optical discs, digital versatile discs (DVD), floppy discs and Blu-ray discs. Disks usually copy data magnetically, while discs The laser is used to optically copy the data. The above combination should also be included in the protection scope of the computer-readable medium.

In short, the above descriptions are only preferred embodiments of the technical solutions of the present application, and are not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A method for determining the power of a reflected communication signal, which is characterized in that it includes:

The receiver receives the first signal reflected by the reflector. The first signal includes a first power and a second power. The first power is used for communication between the receiver and the reflector. Power is the power used when the reflector is activated, and the second power is less than or equal to the first power;

After receiving the first signal, the receiver sends a second signal to the exciter, where the second signal includes the second power, and the second signal is used to indicate that the receiver is activated.
The method of claim 1, wherein the second signal further includes the first power.
The method according to claim 1 or 2, wherein the first signal includes the second power and includes:

The first signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or

The first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.
The method according to any one of claims 1 to 3, wherein the second signal includes the second power, and includes:

The second signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or

The second signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.
The method according to claim 3 or 4, wherein the second information includes m, m indicates that the second power obtained after the m-th power ramp of the exciter activates the reflector, and m is Non-negative integer.
A method for determining the power of a reflected communication signal, which is characterized in that it includes:

The reflector receives a third signal sent by the exciter, where the third signal includes a first power, and the first power is used for communication from the exciter to the reflector and the receiver;

The reflector sends a first signal to the receiver, the first signal includes the first power and the second power, the second power is the power used when the reflector is activated, and the The second power is less than or equal to the first power.
The method of claim 6, wherein the first signal includes the second power, including:

The first signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or

The first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.
The method according to claim 7, wherein the second information includes m, m indicates that the second power obtained after the m-th power ramp-up of the exciter activates the reflector, and m is non-negative Integer.
A method for determining the power of a reflected communication signal, which is characterized in that it includes:

The exciter sends a third signal to the reflector, the third signal includes a first power, and the first power is used for communication from the exciter to the reflector and the receiver;

The exciter receives a second signal fed back by the receiver, the second signal is used to indicate that the receiver is activated, and the second signal includes a second power, and the second power is the reflection Power used when the device is activated, where the second power is less than or equal to the first power;

The exciter determines the backward communication power according to the first power; and determines the forward communication power according to the second power.
The method of claim 9, further comprising:

If the exciter does not receive the second signal fed back by the receiver, the exciter performs at least one power ramp of the first power, and sends an update to the reflector after each power ramp Signal, the update signal carries the third power obtained from the latest power ramp until the feedback signal of the receiver is received, the feedback signal carries the fourth power, and the fourth power is the The power used when the reflector is activated, where the fourth power is less than or equal to the third power carried in the update signal sent last time;

The exciter determines the backward communication power according to the third power carried in the update signal sent last time; and determines the forward communication power according to the fourth power.
The method of claim 9, wherein the second signal includes a second power, including:

The second signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power.
The method according to claim 10, wherein the feedback signal carries the fourth power, comprising:

The feedback signal carries second information, and the second information is used to indicate that the reflector is activated based on the fourth power.
The method according to claim 12, wherein the second information includes m, where m indicates that the third power obtained after the m-th power ramp of the exciter activates the reflector, and the fourth power The power is the third power obtained after the m-th power climbing, and m is a non-negative integer.
The method according to any one of claims 9-13, wherein the exciter determining the forward communication power according to the second power comprises:

If the first power is the initial power, the power obtained after the exciter performs power downhill on the initial power is used as the second power, and the forward communication power is determined according to the second power.
A device for determining the power of a reflected communication signal, which is characterized in that it comprises a processing unit and a transceiver unit;

The processing unit is configured to receive the first signal reflected by the reflector through the transceiving unit, the first signal including a first power and a second power, and the first power is used between the receiver and the reflector For inter-communication, the second power is the power used when the reflector is activated, and the second power is less than or equal to the first power; and

A second signal is sent to the exciter through the transceiver unit, the second signal includes the second power, and the second signal is used to indicate that the receiver is activated.
The apparatus of claim 15, wherein the second signal further includes the first power.
The apparatus according to claim 15 or 16, wherein the first signal includes the second power, and includes:

The first signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or

The first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.
The device according to any one of claims 15-17, wherein the second signal includes the second power, and includes:

The second signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or

The second signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.
The device according to claim 18, wherein the second information includes m, m indicates that the second power obtained after the m-th power ramp of the exciter activates the reflector, and m is non-negative Integer.
A device for determining the power of a reflected communication signal, which is characterized in that it comprises a processing unit and a transceiver unit;

The processing unit is configured to receive a third signal sent by the exciter through the transceiver unit, the third signal includes a first power, and the first power is used between the exciter to the reflector and the receiver Communications; and

A first signal is sent to the receiver through the transceiver unit, the first signal includes the first power and the second power, and the second power is the power used when the reflector is activated. The second power is less than or equal to the first power.
The apparatus of claim 20, wherein the first signal includes a second power, including:

The first signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power; or

The first signal carries second information, and the second information is used to indicate that the reflector is activated based on the second power obtained after the exciter performs at least one power ramp.
The device according to claim 21, wherein the second information includes m, m indicates that the second power obtained after the m-th power ramp-up of the exciter activates the reflector, and m is non-negative Integer.
A device for determining the power of a reflected communication signal, which is characterized in that it comprises a processing unit and a transceiver unit;

The transceiver unit is configured to send a third signal to the reflector, the third signal includes a first power, and the first power is used for communication from the exciter to the reflector and the receiver; and the receiver The second signal fed back by the receiver, the second signal is used to indicate that the receiver is activated, and the second signal includes a second power, and the second power is used when the reflector is activated The second power is less than or equal to the first power;

The processing unit is configured to determine the backward communication power according to the first power; and determine the forward communication power according to the second power.
The device according to claim 23, wherein the processing unit is further configured to:

When the transceiving unit does not receive the second signal fed back by the receiver, perform at least one power ramp on the first power, and after each power ramp, the transceiving unit sends to the reflector Send an update signal, the update signal carries the third power obtained from the latest power ramp, until the feedback signal of the receiver is received through the transceiver unit, the feedback signal carries the fourth power, so The fourth power is the power used when the reflector is activated, and the fourth power is less than or equal to the third power carried in the update signal sent last time; and

Determine the backward communication power according to the third power carried in the update signal sent last time; and determine the forward communication power according to the fourth power.
The apparatus of claim 23, wherein the second signal includes a second power, including:

The second signal carries first information, and the first information is used to indicate that the reflector is activated based on the second power.
The device according to claim 24, wherein the feedback signal carries the fourth power, comprising:

The feedback signal carries second information, and the second information is used to indicate that the reflector is activated based on the fourth power.
The device of claim 26, wherein the second information includes m, where m indicates that the third power obtained after the m-th power ramp of the exciter activates the reflector, and the fourth power The power is the third power obtained after the m-th power climbing, and m is a non-negative integer.
The device according to any one of claims 23-27, wherein when the processing unit determines the forward communication power according to the second power, it is specifically configured to:

If the first power is the initial power, the power obtained after power downhilling the initial power is used as the second power, and the forward communication power is determined according to the second power.
A computer-readable storage medium, characterized by comprising a program or instruction, when the program or instruction runs on a computer, the method according to any one of claims 1-5, and any one of claims 6-8. A method as described or a method as claimed in any one of claims 9-14 is executed.
A communication system, characterized in that the communication system comprises the reflected communication signal power determination device according to any one of claims 15-19, and the reflected communication signal power determination device according to any one of claims 20-22 Device and the reflected communication signal power determination device according to any one of claims 23-28.