CN108886696A

CN108886696A - A kind of method and device for sending signal, receiving signal

Info

Publication number: CN108886696A
Application number: CN201680084328.3A
Authority: CN
Inventors: 杨美英; 官磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2016-04-01
Filing date: 2016-04-01
Publication date: 2018-11-23
Also published as: WO2017166309A1

Abstract

The embodiment of the invention provides the method and devices of a kind of transmission signal, reception signal, are related to the communications field, and the method for sending signal includes：User equipment (UE) obtains energy measuring threshold-offset information, and the energy measuring offset information is used to improve the energy measuring thresholding of the UE；The UE determines present energy detection threshold according to transmission parameter information and the energy measuring offset information；The UE carries out channel idle assessment according to the present energy detection threshold；The UE sends signal after assessing channel idle.The present invention can be improved the chance that UE sends signal.

Description

Method and device for sending signal and method and device for receiving signal

Technical Field

The present invention relates to the field of communications, and in particular, to a method and an apparatus for transmitting and receiving a signal.

Background

The LAA (Licensed Assisted Access) technology is to add an LBT (Listen Before Talk) mechanism on the basis of the LTE (Long term Evolution) technology. For LAA uplink transmission, the principle of the LBT mechanism is that a UE (User Equipment) performs channel idle estimation before sending a signal to a base station, and if the channel is estimated to be idle, the UE may occupy the channel and send a signal to the base station through the channel.

Currently, when a UE sends a signal, channel idle estimation is performed in the following manner, and the detailed process is as follows: the method comprises the steps that UE obtains sending parameter information of the UE, wherein the sending parameter information comprises sending bandwidth and sending power of the UE; and determining an energy detection threshold according to the transmission parameter information, then detecting the energy of a channel, if the energy of the channel does not exceed the energy detection threshold, determining that the channel is idle, can occupy the channel, and transmitting information to the base station through the channel.

In the above manner of determining the energy detection threshold, under the condition of determining the transmission bandwidth, the determined energy detection threshold may be increased when the transmission power of the UE is reduced, and increasing the energy detection threshold may increase the chance of detecting that a channel is idle, thereby improving the chance of the UE occupying the channel to transmit a signal. Therefore, the determined energy detection threshold is increased by reducing the transmission power for the central UE located in the cell central area, and the signal transmission opportunity is further improved.

In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:

in the foregoing manner, the increase of the energy detection threshold is much smaller than the decrease of the transmission power of the central UE, for example, when the transmission power of the central UE is decreased by 30dB, the increase of the energy detection threshold caused by the decrease is often smaller than 10 dB. So, currently, the central UE gets smaller opportunity to transmit information at the cost of lower transmit power, resulting in still lower opportunity for the central UE to transmit signals.

Disclosure of Invention

In order to improve the opportunity of transmitting signals by the central UE, embodiments of the present invention provide a method and an apparatus for transmitting and receiving signals. The technical scheme is as follows:

in a first aspect, a method for transmitting a signal is provided, the method including:

user Equipment (UE) acquires energy detection threshold offset information, wherein the energy detection offset information is used for improving an energy detection threshold of the UE;

the UE determines a current energy detection threshold according to the sending parameter information and the energy detection offset information;

the UE carries out channel idle assessment according to the current energy detection threshold;

and the UE sends a signal after evaluating that the channel is idle.

In the first aspect, since the energy detection threshold offset information is used to improve the energy detection threshold of the UE, the UE can improve the determined energy detection threshold by using the energy detection threshold offset information, thereby improving the chance of detecting that a channel is idle by the UE according to the energy detection threshold, and further improving the chance of sending a signal by the UE.

With reference to the first aspect, in a first possible implementation manner of the first aspect, when the energy detection threshold offset information includes at least one energy detection threshold offset value, the sending parameter information includes a sending power of the UE;

the UE determines a current energy detection threshold according to the sending parameter information and the energy detection offset information, and the method comprises the following steps:

determining the current energy detection threshold according to the following formula:

wherein, T is the current energy detection threshold, and the value range is a real number set; b is a constant, and the value range is a real number set; BW is the sending bandwidth of the UE, and the value range is positive number; p_HAs a constant, the value range is a set of real numbers; p_TXThe value range is a real number set for the transmission power of the UE; t is_AAs a constant, the value range is a set of real numbers; y is the energy detection threshold offset value, and the value range is a real number set; t is_maxThe value range is a real number set, namely 10 · log10(F · BW); e is a constant, and the value range is positive; f is the power per megahertz, and the value range is non-negative and real.

In a first possible implementation manner of the first aspect, energy detection threshold offset information for increasing an energy detection threshold of the UE is substituted into the above formula, so that the energy detection threshold determined by the UE can be increased by the energy detection threshold offset information, thereby increasing a chance that a UE detects that a channel is idle according to the energy detection threshold, and further increasing a chance that the UE sends a signal.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the obtaining, by the UE, the energy detection threshold offset information includes:

the UE receives energy detection threshold offset information, and the energy detection offset information is configured for the UE by a base station; or,

and the UE acquires the energy detection threshold offset information according to the current wireless parameter information.

In a second possible implementation manner of the first aspect, the energy detection threshold offset information of the UE may be configured by the base station, or may be obtained by the UE itself, which provides multiple manners of obtaining the energy detection offset information.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the obtaining the energy detection threshold offset information according to the current wireless parameter information includes:

and acquiring energy detection offset information corresponding to the current wireless parameter information from the corresponding relation between the candidate wireless parameter information and the candidate energy detection offset information according to the current wireless parameter information.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes:

and the UE receives the corresponding relation between the candidate wireless parameter information and the candidate energy detection offset information.

In a second aspect, a method of receiving a signal is provided, the method comprising:

the base station sends energy detection threshold offset information; the energy detection threshold offset information is used for improving the energy detection threshold offset of the user equipment;

and the base station receives the signal sent by the UE.

In the second aspect, since the base station transmits energy detection threshold offset information for increasing the energy detection threshold of the UE, the UE provides the energy detection threshold determined by itself through the energy detection threshold offset information, and provides a chance to transmit a signal through the energy detection threshold.

With reference to the second aspect, in a first possible implementation manner of the second aspect, before the sending, by the base station, the energy detection threshold offset information, the method further includes:

and the base station configures the energy detection threshold offset information.

In a first possible implementation manner of the second aspect, the base station configures energy threshold offset information, so that the UE improves the chance of sending a signal based on the energy detection threshold offset information.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the method further includes:

and the base station sends the corresponding relation between the candidate wireless parameter information and the candidate energy detection threshold offset information.

In a second possible implementation manner of the second aspect, the base station sends a corresponding relationship between the candidate wireless parameter information and the candidate energy detection threshold offset information, so that the UE can obtain the energy detection threshold offset information from the corresponding relationship.

In a third aspect, an apparatus for transmitting a signal is provided, the apparatus comprising: a processing unit and a transmitting unit;

the processing unit is configured to acquire energy detection threshold offset information, where the energy detection offset information is used to improve an energy detection threshold of the UE; determining a current energy detection threshold according to the sending parameter information and the energy detection offset information; performing channel idle evaluation according to the current energy detection threshold;

and the sending unit is used for sending signals after the processing unit evaluates that the channel is idle.

In the third aspect, since the energy detection threshold offset information is used to improve the energy detection threshold of the UE, the UE can improve the determined energy detection threshold through the energy detection threshold offset information, thereby improving the chance of detecting that the channel is idle by the UE according to the energy detection threshold, and further improving the chance of sending a signal by the UE.

With reference to the third aspect, in a first possible implementation manner of the third aspect, when the energy detection threshold offset information includes at least one energy detection threshold offset value, the sending parameter information includes a sending power of the UE;

the processing unit is configured to determine the current energy detection threshold according to the following formula:

In a first possible implementation manner of the third aspect, energy detection threshold offset information for increasing an energy detection threshold of the UE is substituted into the above formula, so that the energy detection threshold determined by the UE can be increased by the energy detection threshold offset information, thereby increasing a chance that a UE detects that a channel is idle according to the energy detection threshold, and further increasing a chance that the UE sends a signal.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the apparatus further includes: a receiving unit;

the receiving unit is configured to receive energy detection threshold offset information, where the energy detection offset information is configured by a base station for the UE; or,

and the processing unit is used for acquiring the energy detection threshold offset information according to the current wireless parameter information.

In a second possible implementation manner of the third aspect, the energy detection threshold offset information of the UE may be configured by the base station, or may be obtained by the UE itself, which provides multiple manners of obtaining the energy detection offset information.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the processing unit is configured to obtain, according to the current wireless parameter information, energy detection offset information corresponding to the current wireless parameter information from a correspondence between candidate wireless parameter information and candidate energy detection offset information.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the receiving unit is further configured to receive a correspondence between the candidate radio parameter information and candidate energy detection offset information.

In a fourth aspect, an apparatus for receiving a signal is provided, the apparatus comprising: a transmitting unit and a receiving unit;

the sending unit is used for sending energy detection threshold offset information; the energy detection threshold offset information is used for improving the energy detection threshold offset of the user equipment;

the receiving unit is configured to receive a signal sent by the UE.

In a second aspect, energy detection threshold offset information for increasing an energy detection threshold of a UE is sent, so that the UE provides a self-determined energy detection threshold through the energy detection threshold offset information, and provides an opportunity to send a signal through the energy detection threshold.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the apparatus further includes: a processing unit;

and the processing unit is used for configuring the energy detection threshold offset information.

In a first possible implementation manner of the fourth aspect, the base station configures energy threshold offset information, so that the UE improves a chance of sending a signal based on the energy detection threshold offset information.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the sending unit is further configured to send a correspondence between the candidate radio parameter information and the candidate energy detection threshold offset information.

In a second possible implementation manner of the fourth aspect, a correspondence between the candidate radio parameter information and the candidate energy detection threshold offset information is sent, so that the UE may obtain the energy detection threshold offset information from the correspondence.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1-1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

fig. 1-2 is a schematic network architecture diagram of a first application scenario provided in an embodiment of the present invention;

fig. 1-3 are schematic network architectures of a second application scenario provided in the embodiment of the present invention;

fig. 1 to 4 are schematic network architectures of a third application scenario provided in the embodiment of the present invention;

fig. 2 is a schematic structural diagram of a UE according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 4-1 is a flow chart of a method for transmitting signals according to an embodiment of the present invention;

fig. 4-2 is a schematic diagram illustrating a base station configuring a plurality of energy detection threshold offset values for a UE according to an embodiment of the present invention;

fig. 5 is a flowchart of a method for receiving a signal according to an embodiment of the present invention;

FIG. 6-1 is a schematic structural diagram of an apparatus for transmitting signals according to an embodiment of the present invention;

fig. 6-2 is a schematic structural diagram of another apparatus for transmitting signals according to an embodiment of the present invention;

fig. 7-1 is a schematic structural diagram of an apparatus for receiving signals according to an embodiment of the present invention;

fig. 7-2 is a schematic structural diagram of another apparatus for receiving signals according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to the network architecture shown in fig. 1-1, in an LAA communication system, for uplink transmission, a UE performs channel idle estimation before sending a signal to a base station, and if the channel idle is estimated, the UE may occupy the channel and send a signal to the base station through the channel.

Wherein the base station includes a macro station and a small station in the LAA communication system. The working frequency bands of the small station comprise a plurality of working frequency bands, wherein one working frequency band is an unlicensed frequency spectrum, and the other working frequency band is a licensed frequency spectrum; or one of the operating bands is unlicensed spectrum, the small stations are connected to the macro station via an ideal/non-ideal backhaul link, and the macro station operates in licensed spectrum.

Currently, the LAA communication system specifically includes the following three application scenarios.

The first application scenario is: referring to fig. 1-2, a macro station and a small station operate on a licensed spectrum f1 and an unlicensed spectrum f2, respectively, by means of carrier aggregation. Wherein the macro and small stations are connected by an ideal backhaul link.

The second application scenario is: referring to fig. 1 to 3, a macro station operates in a licensed spectrum f1, and a small station operates in a licensed spectrum f1 and an unlicensed spectrum f2 respectively by means of carrier aggregation. Wherein the licensed spectrum and the unlicensed spectrum of the small station are connected by an ideal backhaul link. The macro station and the small station are connected through an ideal or non-ideal backhaul link.

The third application scenario is: the small stations respectively work on the licensed spectrum f2 and the unlicensed spectrum f3 in a carrier aggregation mode. Wherein the licensed spectrum and the unlicensed spectrum of the small station are connected by an ideal backhaul link. In this scenario, no macro station is doing a wide coverage service.

No matter which application scenario is applied in the LAA communication system, the central UE located in the cell central area has a smaller chance of estimating that the channel is idle, resulting in a smaller chance of transmitting signals.

Referring to fig. 2, for the UE, the structure of the UE may be the UE200 shown in fig. 2, and the UE200 may be a mobile phone or a tablet computer, and at least includes a transceiver 201 and a processor 202 including one or more processing cores.

Processor 202 may perform a channel idle assessment prior to transmitting a signal to a base station and may occupy the channel if the channel idle is assessed.

The transceiver 201 may be used to transmit signals to the base station after the processor 202 occupies the channel.

It should be noted that: the UE200 may include other components in addition to the two components described above, and the processor 202 and transceiver 201 may include other functions in addition to those described above.

For example, the UE200 may further include a memory 203, an input unit 204, a display unit 205, a sensor 206, an audio circuit 207, and a WiFi (wireless fidelity) module 208, where the memory 203 includes one or more computer-readable storage media. It is emphasized that: those skilled in the art will appreciate that the UE architecture shown in fig. 2 does not constitute a limitation of the UE200, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.

The transceiver 201 may also be configured to receive and transmit signals during information transmission and reception or during a call, and in particular, receive downlink information of a base station and then send the received downlink information to the one or more processors 202 for processing; in addition, data relating to uplink is transmitted to the base station. Generally, the transceiver 201 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a SIM (Subscriber Identity Module) card, a transceiver, a coupler, an LNA (Low Noise Amplifier), a duplexer, and the like. In addition, the transceiver 201 may also communicate with networks and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA (Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), LTE (Long Term Evolution), email, SMS (Short Messaging Service), and the like.

The memory 203 may also be used to store software programs and modules, and the processor 202 may execute various functional applications and data processing by operating the software programs and modules stored in the memory 203. The memory 203 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the UE200, and the like. Further, the memory 203 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 203 may also include a memory controller to provide the processor 202 and the input unit 204 access to the memory 203.

The input unit 204 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 204 may include a touch-sensitive surface 241 as well as other input devices 242. The touch-sensitive surface 241, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface 241 using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 241 may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 202, and can receive and execute commands sent by the processor 202. In addition, the touch-sensitive surface 241 may be implemented in various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 204 may also include other input devices 242 in addition to the touch-sensitive surface 241. In particular, other input devices 242 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 205 may be used to display information input by or provided to the user and various graphical user interfaces of the UE200, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 205 may include a Display panel 251, and optionally, the Display panel 251 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 241 may cover the display panel 251, and when the touch-sensitive surface 241 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 202 to determine the type of the touch event, and then the processor 202 provides a corresponding visual output on the display panel 251 according to the type of the touch event. Although in FIG. 2, the touch-sensitive surface 241 and the display panel 251 are shown as two separate components to implement input and output functions, in some embodiments, the touch-sensitive surface 241 may be integrated with the display panel 251 to implement input and output functions.

The UE200 includes at least one sensor 206, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 251 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 251 and/or the backlight when the UE200 moves to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the device is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for identifying the UE attitude, and related functions (such as pedometer and tapping) for vibration identification; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which may be further configured by the UE200, detailed descriptions thereof are omitted.

The audio circuitry 207 includes a speaker 271 and a microphone 272, and the speaker 271 and microphone 272 may provide an audio interface between the user and the UE 200. The audio circuit 207 can transmit the electrical signal converted from the received audio data to the speaker 271, and the electrical signal is converted into a sound signal by the speaker 271 and output; on the other hand, the microphone 272 converts the collected sound signals into electrical signals, which are received by the audio circuit 207 and converted into audio data, which are then processed by the audio data output processor 202, and then transmitted to, for example, another UE via the transceiver 201, or output to the memory 203 for further processing. The audio circuitry 207 may also include an earbud jack to provide communication of peripheral headphones with the UE 200.

WiFi belongs to short-range wireless transmission technology, and the UE200 can help the user send and receive e-mails, browse web pages, access streaming media, etc. through the WiFi module 208, which provides wireless broadband internet access for the user. Although fig. 2 shows the WiFi module 208, it is understood that it does not belong to the essential constitution of the UE200, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 202 is a control center of the UE200, connects various parts of the entire UE using various interfaces and lines, performs various functions of the UE200 and processes data by running or executing software programs and/or modules stored in the memory 203, and calling data stored in the memory 203, thereby performing overall monitoring of the UE 200. Optionally, the processor 202 may integrate an application processor and a modem processor, wherein the application processor mainly handles operating systems, user interfaces, application programs, and the like, and the modem processor mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 202.

The UE200 also includes a power supply 209 (e.g., a battery) for powering the various components, and preferably, the power supply 209 may be logically coupled to the processor 202 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The power supply 209 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Although not shown, the UE200 may further include a camera, a bluetooth module, and the like, which are not described herein. Specifically, in this embodiment, the transceiver 201 and the processor 202 of the UE200 may further have the following functions:

the processor 202 is configured to obtain energy detection threshold offset information, where the energy detection offset information is used to improve an energy detection threshold of the UE 200; determining a current energy detection threshold according to the sending parameter information and the energy detection offset information; performing channel idle evaluation according to the current energy detection threshold;

the transceiver 201 is configured to transmit a signal after the assessment channel is idle.

Optionally, when the energy detection threshold offset information includes an energy detection threshold offset value, the sending parameter information includes the sending power of the UE 200;

the processor 202 is configured to determine the current energy detection threshold T according to the following formula:

wherein, T is the current energy detection threshold, and the value range is a real number set; b is a constant, and the value range is a real number set; BW is the sending bandwidth of the UE200, and the value range is positive; p_HAs a constant, the value range is a set of real numbers; p_TXThe value range is a real number set for the transmission power of the UE; t is_AAs a constant, the value range is a set of real numbers; y is the energy detection threshold offset value, and the value range is a real number set; t is_maxThe value range is a real number set, namely 10 · log10(F · BW); e is a constant, and the value range is positive; f is the power per megahertz, and the value range is non-negative and real.

Optionally, when the energy detection threshold offset information includes an index of an energy detection threshold offset value,

the processor 202 is further configured to obtain the energy detection threshold offset value according to the index of the energy detection threshold offset value.

Optionally, the transmission bandwidth of the UE200 is any one of an actual transmission bandwidth, a maximum transmission bandwidth, and a channel detection bandwidth of the UE on a carrier of an unlicensed spectrum;

the transmit power includes an actual transmit power of the UE200 on a carrier of the unlicensed spectrum or a maximum transmit power of the UE200 on a carrier of the unlicensed spectrum.

Optionally, the processor 202 is configured to receive energy detection threshold offset information, where the energy detection offset information is configured by a base station for the UE 200; or acquiring the energy detection threshold offset information according to the current wireless parameter information.

The processor 202 is configured to obtain, according to the current wireless parameter information, energy detection offset information corresponding to the current wireless parameter information from a correspondence between candidate wireless parameter information and candidate energy detection offset information.

Optionally, the transceiver 201 is further configured to receive a correspondence between the candidate wireless parameter information and candidate energy detection offset information.

Optionally, the current wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, signal to interference plus noise ratio SINR of the UE, and transmission power of the UE.

Optionally, the received energy detection threshold offset information includes at least one energy detection threshold offset value.

In the embodiment of the invention, the energy detection threshold offset information for improving the UE energy detection threshold is substituted into the formula, so that the energy detection threshold determined by the UE can be improved through the energy detection threshold offset information, the idle opportunity of a UE detection channel is improved according to the energy detection threshold, and the opportunity of the UE for sending signals is improved.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a base station 300 according to an embodiment of the present invention, where the base station 300 may be the base station mentioned in the embodiments of fig. 1-1 to 1-4, and the base station 300 may have a relatively large difference due to different configurations or performances, and may include one or more transmitters 301, a processor 302, and a receiver 303, and one or more storage media 306 (e.g., one or more mass storage devices) for storing applications 304 or data 305. Storage medium 306 may be, among other things, transient or persistent storage. The program stored on the storage medium 306 may include one or more modules (not shown), each of which may include a series of instruction operations. Still further, the processor 302 may be configured to communicate with the storage medium 306 to execute a series of instruction operations in the storage medium 306 on the base station 300.

The base station 300 may also include one or more power supplies 307, one or more wired or wireless network interfaces 308, one or more input-output interfaces 309, and/or one or more operating systems 310, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc., and the operating systems 310 may be stored in the storage medium 306.

The transmitter 301, processor 302, receiver 303 of the base station 300 in the present invention have the following functions:

the transmitter 301 is configured to transmit energy detection threshold offset information; the energy detection threshold offset information is used for improving the energy detection threshold offset of the user equipment UE;

the receiver 303 is configured to receive a signal sent by the UE.

The processor 302 is configured to configure the energy detection threshold offset information.

Optionally, the transmitter 301 is further configured to transmit a correspondence between the candidate wireless parameter information and the candidate energy detection threshold offset information.

Optionally, the candidate wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, and signal to interference and noise ratio SINR of the UE.

Optionally, the energy detection threshold offset information includes at least one energy detection threshold offset value or an index of at least one energy detection threshold offset value.

In the embodiment of the invention, because the base station is configured with the energy detection threshold offset information, the energy detection threshold of the UE is improved through the energy detection threshold offset information, thereby improving the opportunity of sending signals by the UE.

Referring to fig. 4-1, an embodiment of the present invention provides a method for transmitting a signal, including:

step 401: the UE acquires energy detection threshold offset information, and the energy detection threshold offset information is used for improving the energy detection threshold of the UE.

And the value range of the energy detection threshold offset information is a real number set. The energy detection threshold offset information is used to improve the energy detection threshold of the UE.

The UE acquires energy detection threshold offset information before sending a signal, wherein the energy detection threshold offset information comprises at least one energy detection threshold offset value or at least one index of the energy detection threshold offset value. The UE may obtain the energy detection threshold offset information in several ways, including:

in the first mode, the UE obtains its radio parameter information and configures energy detection threshold offset information according to the radio parameter information.

The radio parameter information includes at least one of propagation path loss information from the UE to the base station, transmission path loss information from the base station to the UE, RSRP (Reference Signal Receiving Power) of the UE, RSRQ (Reference Signal Receiving quality) of the UE, RSSI (Received Signal Strength Indication) of the UE, SINR (Signal to Interference plus Noise Ratio) of the UE, and transmission Power of the UE. The transmit power of the UE includes a maximum transmit power of the UE on a carrier of the unlicensed spectrum, or an actual transmit power of the UE on the carrier of the unlicensed spectrum. The transmission power of the UE is also called the output power of the UE, and in this embodiment, the transmission power of the UE is used for illustration.

For the first way, the detailed implementation process may be as follows: the UE acquires wireless parameter information of the UE, determines the sending power of the UE according to the wireless parameter information, and sets at least one energy detection gate offset value according to the sending power, so that energy detection threshold offset information is obtained.

Optionally, the smaller the transmission power is, the larger the energy detection threshold offset value is set. The larger the transmission power is, the smaller the energy detection threshold offset value is set. If the transmit power is sufficiently large, the set energy detection threshold offset value may be zero.

For example, assume that there are two transmit powers, X1 and X2, and X1 is greater than X2, the energy detection threshold offset value set according to transmit power X1 is Y1, the energy detection threshold offset value set according to transmit power X2 is Y2, and Y2 is greater than Y1.

In the second mode, the UE acquires the current wireless parameter information of the UE, and acquires the energy detection threshold offset information corresponding to the current wireless parameter information from the corresponding relation between the candidate wireless parameter information and the candidate energy detection threshold offset information according to the current wireless parameter information.

The corresponding relation between the candidate wireless parameter information and the candidate energy detection threshold offset information is sent by the UE receiving base station, the UE can store the corresponding relation after receiving the corresponding relation, and the UE can be used when the energy detection threshold offset information needs to be acquired by adopting a second mode.

The method for the base station to send the corresponding relation to the UE includes a static method, a semi-static method or a dynamic configuration method.

For the static mode, there are various specific implementations. For example, the base station sends an RRC (Radio Resource Control) signaling to the UE, where the RRC signaling carries the corresponding relationship.

There are many cases where the base station sends the RRC signaling to the UE, for example, when the UE accesses the network, the base station sends the RRC signaling to the UE, and for example, when the UE performs cell switching, the base station sends the RRC signaling to the UE. When the base station uses the static mode, before the base station sends the RRC signaling to the UE, the base station may carry the corresponding relationship in the RRC signaling, and then send the corresponding relationship to the UE along with the RRC signaling.

For the semi-static mode, there are various specific implementation modes. For example, the base station may periodically transmit the correspondence to the UE. In a specific implementation, the base station may periodically send a broadcast signaling to the UE, where the broadcast signaling carries the corresponding relationship. Of course, there may be other ways to implement the method other than the method using broadcast signaling, which is not listed here.

For the dynamic configuration mode, there are various specific implementation modes. For example, the base station transmits the correspondence to the UE at the time of scheduling the UE. The base station sends a scheduling instruction to the UE when scheduling the UE, so that the scheduling instruction may carry the corresponding relationship in the scheduling instruction during specific implementation. Of course, there may be other ways to implement the scheduling signaling, and these ways are not listed here.

In the correspondence, the mapping relationship between the candidate wireless parameter information and the candidate energy detection threshold offset information includes one of a one-to-one mapping, a one-to-many mapping, and a many-to-one mapping. Referring to table 1 below, the one-to-one mapping means that candidate wireless parameter information corresponds to only one candidate energy detection threshold offset information, and the candidate energy detection threshold offset information also corresponds to only the candidate wireless parameter information; referring to table 2 below, the one-to-many mapping refers to that one candidate wireless parameter information corresponds to a plurality of candidate energy detection threshold offset information; referring to table 3 below, the many-to-one mapping refers to that a plurality of candidate radio parameter information corresponds to one energy detection threshold offset information.

TABLE 1 one-to-one mapping

TABLE 2 one-to-many mapping

TABLE 3 many-to-one mapping

When the second method is actually used, after receiving the corresponding relationship and before sending a signal, the UE obtains the energy detection threshold offset information corresponding to the current wireless parameter information from the corresponding relationship according to the current wireless parameter information. For example, assuming that the current radio parameter information acquired by the UE is X1, according to the current radio parameter information X1, the candidate energy detection threshold offset information is obtained from the correspondence between the candidate radio parameter information and the candidate energy detection threshold offset information shown in table 2, and is in the range from Y1 to Y2, at least one energy detection threshold offset information is selected from the range from Y1 to Y2 as the energy detection threshold offset information corresponding to the current radio parameter information X1, and assuming that Y1 and Y2 are selected, the energy detection threshold offset information correspondingly includes energy detection threshold values Y1 and Y2.

And in the third mode, the UE receives energy detection threshold offset information sent by the base station.

The energy detection threshold offset information is configured by the base station. The energy detection threshold offset information may include at least one energy detection threshold offset value or an index of at least one energy detection threshold offset value. The energy detection threshold offset information configured by the base station can be carried on the authorized carrier and/or the unauthorized carrier, and then sent to the UE.

Optionally, the base station configures the energy detection offset information in several ways, including:

first, a base station acquires wireless parameter information of a UE, and acquires energy detection threshold offset information according to the wireless parameter information.

The UE may periodically transmit its radio parameter information to the base station. The base station can obtain the wireless parameter information sent by the nearest UE, determine the sending power of the UE according to the wireless parameter information, and set at least one energy detection threshold offset value according to the sending power of the UE, so that the energy detection threshold offset information is obtained.

Secondly, the base station randomly sets at least one energy detection threshold offset value to obtain energy detection threshold offset information.

Thirdly, the base station acquires the energy detection threshold offset information according to the counted historical UE information.

The historical UE information counted by the base station comprises the success rate of the UE for occupying the channel, the times of the UE for detecting the idle channel or the proportion of the UE for detecting the idle channel.

Correspondingly, when the historical UE information counted by the base station includes the success rate of occupying the channel by the UE, the base station may set at least one energy detection threshold offset value according to the success rate of occupying the channel by the UE, so as to obtain energy detection threshold offset information.

Optionally, the smaller the success rate of channel preemption is, the larger the value of the set energy detection threshold offset is. The larger the success rate of channel preemption is, the smaller the value of the set energy detection threshold offset is. If the success rate of preempting the channel is large enough, the energy detection threshold offset value may be set to zero.

When the historical UE information counted by the base station comprises the times of detecting the idle channel by the UE or the proportion of detecting the idle channel, the base station sets at least one energy detection threshold offset value according to the times of detecting the idle channel by the UE or the proportion of detecting the idle channel, and the energy detection threshold offset information is obtained.

Optionally, the smaller the number of times that the UE detects that the channel is idle or the smaller the detected proportion of the channel is idle, the larger the set energy detection threshold offset value is. The larger the number of times of detecting the idle channel or the larger the detected idle channel ratio of the UE is, the smaller the set energy detection threshold offset value is. If the UE detects the number of times the channel is idle or detects a sufficiently large proportion of the channel is idle, the set energy detection threshold offset value may be zero.

Optionally, in this embodiment, the manner in which the base station sends the configured energy detection offset information to the UE also includes a static manner, a semi-static manner, or a dynamic configuration manner.

For the static mode, there are various specific implementations. For example, the base station sends RRC signaling to the UE, where the RRC signaling carries energy detection bias threshold offset information.

There are many cases where the base station sends RRC signaling to the UE, and for a detailed explanation, reference is made to the related contents of the second method, and details are not described here.

For the semi-static mode, there are various specific implementation modes. For example, the base station may periodically send energy detection threshold offset information to the UE. In a specific implementation, the base station may periodically send broadcast signaling to the UE, where the broadcast signaling carries the energy detection threshold offset information. Of course, there may be other ways to implement the method other than the method using broadcast signaling, which is not listed here.

For the dynamic configuration mode, there are various specific implementation modes. For example, the base station sends energy detection threshold offset information to the UE when scheduling the UE. The base station sends a scheduling instruction to the UE when scheduling the UE, so that the scheduling instruction may carry energy detection threshold offset information in the scheduling instruction during specific implementation. Of course, there may be other ways to implement the scheduling signaling, and these ways are not listed here.

Optionally, the energy detection threshold offset information may include an energy detection threshold offset value configured by the base station to a certain UE, or may be multiple energy detection threshold offset values configured by the base station to multiple UEs. If the base station only schedules one UE and the UE needs to be configured with the energy detection threshold offset, or schedules a plurality of UEs and only one UE in the plurality of UEs needs to be configured with the energy detection threshold offset information, the base station only needs to configure the energy detection threshold offset information for the certain UE, otherwise, the base station needs to configure the energy detection threshold offset information for each UE.

Optionally, the base station may configure one energy detection threshold offset value for each UE, or may configure multiple energy detection threshold offset values for each UE. Specifically, referring to fig. 4-2, if a UE is scheduled with multiple subframes in one scheduling and cannot preempt a channel when contending for the channel using a first energy detection threshold offset value ED1 in a first subframe, the UE may use a second energy detection threshold offset value ED2 different from the first contention channel in a next contention for the channel, where the first energy detection threshold offset value ED1 is not less than the second energy detection offset value ED 2.

Step 402: the UE acquires transmission parameter information, wherein the transmission parameter information comprises the transmission power of the UE.

Optionally, the transmission parameter information may further include a transmission bandwidth of the UE, where the transmission bandwidth of the UE includes any one of an actual transmission bandwidth, a maximum transmission bandwidth, and a channel detection bandwidth of the UE on a carrier of the unlicensed spectrum.

The transmission power of the UE may be notified to the UE by the base station. The manner in which the base station notifies the UE also includes a static manner, a semi-static manner, and a dynamic manner.

The static mode can be specifically realized as follows: and the base station sends RRC signaling to the UE, wherein the RRC signaling carries the sending power of the UE.

The semi-static mode can be specifically realized as follows: the base station periodically transmits broadcast signaling to the UE, wherein the broadcast signaling carries the transmission power of the UE.

The specific implementation of the dynamic mode may be: and the base station sends a scheduling signaling to the UE when the UE is scheduled, wherein the scheduling signaling carries the sending power of the UE.

Step 403: and the UE determines the current energy detection threshold according to the energy detection threshold offset information and the sending parameter information.

Specifically, the UE determines the current energy detection threshold T according to the following formula (1) according to the energy detection threshold offset information and the transmission parameter information;

wherein, T is the current energy detection threshold, the unit is dBm (decibel millimeter), and the value range is a real number set; b is a constant with a unit of dBm, the value range is a real number set, and optionally, the value of B can be-72; BW is a sending bandwidth of the UE, the unit is MHz (megahertz), the value range is a positive number, and the sending bandwidth of the UE includes any one of an actual sending bandwidth, a maximum sending bandwidth and a channel detection bandwidth of the UE on a carrier of the unlicensed spectrum; p_HIs constant with unit dBm, the value range is real number set, optional, P_HThe value may be 23; p_TXThe unit is dBm which is the power of the UE, and the value range is a real number set; t is_AThe unit is dB and the value range is a real number set; y is the energy detection threshold offset information, the unit is dB, and the value range is a real number set; t is_maxThe unit is dBm, and the numeric range is a real number set; e is a constant with the unit of MHz and the value range of positive numbers; f is power per megahertz, in a range of non-negative real numbers, in mw/MHz (milliwatts per megahertz).

In the two formulas, min (a, b) represents a mathematical operation, taking the minimum value between a, b; max (a, b) represents a mathematical operation, taking the maximum value between a, b; log10(a) represents a mathematical operation, a logarithmic operation with a base 10 for a; 'a/b' denotes the mathematical operation, a divided by b.

Optionally, before executing this step, the UE further determines whether non-LTE network coverage exists at its location and around the location, and if a non-LTE network exists, executes this step; if no non-LTE network exists, the energy detection threshold T may be determined as in equation (2) below, and then step 204 is performed. The non-LTE network may be a WIFI network or the like.

T＝T_max+A……(2)；

Wherein, a is a constant, the numeric range is real number, the unit is dB, optionally, a can take a value of 10; the meaning of the parameters existing in formula (2) is the same as that of the parameters existing in formula (1), and will not be described in detail here.

In equation (1), the parameter Y substituted into the equation is essentially the energy detection threshold offset value. Optionally, when the energy detection threshold offset information includes an energy detection threshold offset value, the UE may directly determine the current energy detection threshold T according to the above formula (1); when the energy detection threshold offset information includes the index of the energy detection threshold offset value, the UE may obtain the energy detection threshold offset value according to the index of the energy detection threshold offset value, and then determine the current energy detection threshold T according to the above formula (1).

It can be seen from the above formula that the energy detection threshold value set after adding the energy detection threshold offset information may be increased compared to the energy detection threshold value set without adding the energy detection threshold offset information, or the energy detection threshold value added with the energy detection threshold offset information is equal to the energy detection threshold value without adding the energy detection threshold offset information.

Step 404: and the UE carries out channel idle evaluation according to the energy detection threshold to obtain an evaluation result, wherein the evaluation result is that the channel is idle or busy.

In particular, a UE may transmit signals on one or more channels; for each channel distributed around the UE, the UE detects the energy of the channel, if the energy is smaller than the energy detection threshold, the evaluation result of the channel is determined to be idle, otherwise, the evaluation result of the channel is determined to be busy.

Optionally, if the UE detects that all channels are in a busy state, the UE selects another energy detection threshold offset value from the energy detection threshold offset information when the next channel contention occurs, and then substitutes the selected energy detection threshold offset value into the above formula (1), that is, returns to the execution from the above step 403.

Step 405: and the UE sends a signal according to the evaluation result.

In step 404, the UE performs idle estimation on the channel, and if the estimation result of the channel is that the channel is idle, the UE may occupy the channel and transmit a signal through the channel.

In the embodiment of the present invention, since the UE obtains the energy detection threshold offset information, and the energy detection threshold offset information is substituted into the energy detection threshold determined by the above formula (1), which may be larger than the energy detection threshold determined by the formula (1) without substituting the energy detection threshold information, the energy detection threshold that can be determined by the energy detection threshold offset information improves the chance of the UE detecting that the channel is idle based on the energy detection threshold, thereby improving the chance of the UE sending a signal.

Referring to fig. 5, an embodiment of the present invention provides a method for receiving a signal, including:

step 501: and the base station configures energy detection threshold offset information, wherein the energy detection threshold offset information is used for improving the energy detection threshold of the UE.

The base station has several following ways to configure the energy detection offset information, including:

The detailed implementation process of the three modes can refer to the description of the three modes of the embodiment shown in fig. 2, and is not described in detail here.

Step 502: the base station sends the energy detection threshold offset information to the UE.

Optionally, the manner in which the base station sends the energy detection threshold offset information to the UE includes a static manner, a semi-static manner, or a dynamic manner, and details of the three manners are described with reference to the description of sending the energy detection threshold offset information in the embodiment shown in fig. 2, and are not described in detail here.

After receiving the energy detection threshold offset information, the UE determines an energy detection threshold according to the energy detection threshold offset information before sending a signal, performs channel idle evaluation according to the energy detection threshold, and sends the signal after evaluating that the channel is idle. For details of the implementation process of UE signaling, please refer to the related contents of step 402 and step 405 in embodiment 2, which will not be described in detail herein.

Step 503: the base station receives signals transmitted by the UE.

In the embodiment of the invention, because the base station is configured with the energy detection threshold offset information and sends the energy detection threshold offset information to the UE, the UE improves the self-determined energy detection threshold through the energy detection threshold offset information, thereby improving the idle opportunity of the self-detection channel based on the energy detection threshold and further improving the opportunity of sending signals by the UE.

Referring to fig. 6-1, an embodiment of the present invention provides 14 an apparatus 600 for transmitting a signal, where the apparatus 600 includes: a processing unit 601 and a transmitting unit 602;

the processing unit 601 is configured to obtain energy detection threshold offset information, where the energy detection offset information is used to improve an energy detection threshold of the UE; determining a current energy detection threshold according to the sending parameter information and the energy detection offset information; performing channel idle evaluation according to the current energy detection threshold;

the sending unit 602 is configured to send a signal after the processing unit evaluates that the channel is idle.

Optionally, when the energy detection threshold offset information includes at least one energy detection threshold offset value, the sending parameter information includes the sending power of the UE;

the processing unit 601 is configured to determine the current energy detection threshold according to the following formula:

Optionally, when the energy detection threshold offset information includes at least one index of energy detection threshold offset value,

the processing unit is further configured to obtain the energy detection threshold offset value according to the index of the energy detection threshold offset value.

Optionally, the transmission bandwidth of the UE is any one of an actual transmission bandwidth, a maximum transmission bandwidth, and a channel detection bandwidth of the UE on a carrier of an unlicensed spectrum;

the transmit power includes an actual transmit power of the UE on a carrier of the unlicensed spectrum or a maximum transmit power of the UE on a carrier of the unlicensed spectrum.

Optionally, referring to fig. 6-2, the apparatus further comprises: a receiving unit 603;

the receiving unit 603 is configured to receive energy detection threshold offset information, where the energy detection offset information is configured by a base station for the UE; or,

the processing unit 601 is configured to obtain the energy detection threshold offset information according to the current wireless parameter information.

The wireless parameter information includes at least one of propagation path loss information from the UE to the base station, transmission path loss information from the base station to the UE, RSRP of the UE, RSRQ of the UE, RSSI of the UE, SINR of the UE, and transmission power of the UE. The transmit power of the UE includes a maximum transmit power of the UE on a carrier of the unlicensed spectrum, or an actual transmit power of the UE on the carrier of the unlicensed spectrum. The transmission power of the UE is also called the output power of the UE, and in this embodiment, the transmission power of the UE is used for illustration.

In a specific implementation, the processing unit 601 obtains the wireless parameter information, determines the transmission power according to the wireless parameter information, and sets at least one energy detection gate offset value according to the transmission power, so as to obtain the energy detection threshold offset information.

Optionally, the processing unit 601 is configured to obtain, according to the current wireless parameter information, energy detection offset information corresponding to the current wireless parameter information from a correspondence between candidate wireless parameter information and candidate energy detection offset information.

Optionally, the receiving unit 603 is further configured to receive a correspondence between the candidate wireless parameter information and candidate energy detection offset information.

In the embodiment of the invention, because the energy detection threshold offset information is used for improving the energy detection threshold of the UE, the UE can improve the determined energy detection threshold through the energy detection threshold offset information, thereby improving the opportunity of detecting the idle channel of the UE according to the energy detection threshold and further improving the opportunity of sending signals by the UE.

Referring to fig. 7-1, an embodiment of the present invention provides an apparatus 700 for receiving a signal, where the apparatus 700 includes: a transmitting unit 701 and a receiving unit 702;

the sending unit 701 is configured to send energy detection threshold offset information; the energy detection threshold offset information is used for improving the energy detection threshold offset of the user equipment;

the receiving unit 702 is configured to receive a signal sent by the UE.

Optionally, the apparatus further comprises: a processing unit 703;

the processing unit 703 is configured to configure the energy detection threshold offset information.

Optionally, the processing unit 703 configures the energy detection threshold offset information in three ways, including:

first, the processing unit 703 obtains radio parameter information of the UE, and obtains energy detection threshold offset information according to the radio parameter information.

The UE may periodically transmit its radio parameter information. The processing unit 703 may obtain radio parameter information sent by the nearest UE, determine the sending power of the UE according to the radio parameter information, and set at least one energy detection threshold offset value according to the sending power of the UE, to obtain energy detection threshold offset information.

Second, the processing unit 703 randomly sets at least one energy detection threshold offset value to obtain energy detection threshold offset information.

Third, the processing unit 703 acquires energy detection threshold offset information according to the counted historical UE information.

The historical UE information counted by the processing unit 703 includes the success rate of the UE preempting the channel, the number of times the UE detects that the channel is idle, or the ratio of detecting that the channel is idle.

Correspondingly, when the historical UE information counted by the processing unit 703 includes a success rate of occupying the channel by the UE, the processing unit 703 may set at least one energy detection threshold offset value according to the success rate of occupying the channel by the UE, so as to obtain energy detection threshold offset information.

When the historical UE information counted by the processing unit 703 includes the number of times that the UE detects that the channel is idle or the ratio of detecting that the channel is idle, the processing unit 703 sets at least one energy detection threshold offset value according to the number of times that the UE detects that the channel is idle or the ratio of detecting that the channel is idle, to obtain energy detection threshold offset information.

Optionally, the sending unit 701 is further configured to send a correspondence between the candidate wireless parameter information and the candidate energy detection threshold offset information.

Optionally, the candidate wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, signal to interference and noise ratio SINR of the UE, and transmit power of the UE.

In the embodiment of the invention, the energy detection threshold offset information used for improving the UE energy detection threshold is sent, so that the UE provides the self-determined energy detection threshold through the energy detection threshold offset information, and the opportunity of sending signals is provided through the energy detection threshold.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

A method of transmitting a signal, the method comprising:

user Equipment (UE) acquires energy detection threshold offset information, wherein the energy detection offset information is used for improving an energy detection threshold of the UE;

the UE determines a current energy detection threshold according to the sending parameter information and the energy detection offset information;

the UE carries out channel idle assessment according to the current energy detection threshold;

and the UE sends a signal after evaluating that the channel is idle.
The method of claim 1, wherein when the energy detection threshold offset information includes at least one energy detection threshold offset value, the transmission parameter information includes a transmission power of the UE;

the UE determines a current energy detection threshold according to the sending parameter information and the energy detection offset information, and the method comprises the following steps:

determining the current energy detection threshold according to the following formula:

wherein, T is the current energy detection threshold, and the value range is a real number set; b is a constant, and the value range is a real number set; BW is the sending bandwidth of the UE, and the value range is positive number; p_HAs a constant, the value range is a set of real numbers; p_TXThe value range is a real number set for the transmission power of the UE; t is_AAs a constant, the value range is a set of real numbers; y is the energy detection threshold offset value, and the value range is a real number set; t is_maxThe value range is a real number set, namely 10 · log10(F · BW); e is a constant, and the value range is positive; f is the power per megahertz, and the value range is non-negative and real.
The method of claim 2, wherein when the energy detection threshold offset information includes an index of at least one energy detection threshold offset value,

before determining the current energy detection threshold according to the following formula, the method further includes:

and acquiring the energy detection threshold offset value according to the index of the energy detection threshold offset value.
The method of claim 2,

the transmission bandwidth of the UE is any one of the actual transmission bandwidth, the maximum transmission bandwidth and the channel detection bandwidth of the UE on the carrier wave of the unlicensed spectrum;

the transmit power includes an actual transmit power of the UE on a carrier of the unlicensed spectrum or a maximum transmit power of the UE on a carrier of the unlicensed spectrum.
The method of any one of claims 1 to 4, wherein the obtaining, by the UE, the energy detection threshold offset information comprises:

the UE receives energy detection threshold offset information, and the energy detection offset information is configured for the UE by a base station; or,

and the UE acquires the energy detection threshold offset information according to the current wireless parameter information.
The method of claim 5, wherein the obtaining the energy detection threshold offset information according to current radio parameter information comprises:

and acquiring energy detection offset information corresponding to the current wireless parameter information from the corresponding relation between the candidate wireless parameter information and the candidate energy detection offset information according to the current wireless parameter information.
The method of claim 6, wherein before the UE obtains the energy detection threshold offset information according to current radio parameter information, further comprising:

and the UE receives the corresponding relation between the candidate wireless parameter information and the candidate energy detection offset information.
The method according to any one of claims 5 to 7,

the current wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, signal to interference and noise ratio SINR of the UE, and transmit power of the UE.
A method of receiving a signal, the method comprising:

the base station sends energy detection threshold offset information; the energy detection threshold offset information is used for improving the energy detection threshold offset of the user equipment;

and the base station receives the signal sent by the UE.
The method of claim 9, wherein prior to the base station transmitting the energy detection threshold offset information, further comprising:

and the base station configures the energy detection threshold offset information.
The method of claim 9 or 10, wherein the method further comprises:

and the base station sends the corresponding relation between the candidate wireless parameter information and the candidate energy detection threshold offset information.
The method of claim 11,

the candidate wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, signal to interference and noise ratio SINR of the UE, and transmit power of the UE.
The method according to any one of claims 9 to 12,

the energy detection threshold offset information includes at least one energy detection threshold offset value or an index of at least one energy detection threshold offset value.
An apparatus for transmitting a signal, the apparatus comprising: a processing unit and a transmitting unit;

the processing unit is configured to acquire energy detection threshold offset information, where the energy detection offset information is used to improve an energy detection threshold of the UE; determining a current energy detection threshold according to the sending parameter information and the energy detection offset information; performing channel idle evaluation according to the current energy detection threshold;

and the sending unit is used for sending signals after the processing unit evaluates that the channel is idle.
The apparatus of claim 14, wherein the transmission parameter information comprises a transmission power of the UE when the energy detection threshold offset information comprises at least one energy detection threshold offset value;

the processing unit is configured to determine the current energy detection threshold according to the following formula:

wherein, T is the current energy detection threshold, and the value range is a real number set; b is a constant, and the value range is a real number set; BW is the sending bandwidth of the UE, and the value range is positive number; p_HAs a constant, the value range is a set of real numbers; p_TXThe value range is a real number set for the transmission power of the UE; t is_AAs a constant, the value range is a set of real numbers; y is the energy detection threshold offset value, and the value range is a real number set; t is_maxThe value range is a real number set, namely 10 · log10(F · BW); e is a constant, and the value range is positive; f is the power per megahertz, and the value range is non-negative and real.
The apparatus of claim 15, wherein when the energy detection threshold offset information includes an index of at least one energy detection threshold offset value,

the processing unit is further configured to obtain the energy detection threshold offset value according to the index of the energy detection threshold offset value.
The apparatus of claim 15,

the transmission bandwidth of the UE is any one of the actual transmission bandwidth, the maximum transmission bandwidth and the channel detection bandwidth of the UE on the carrier wave of the unlicensed spectrum;

the transmit power includes an actual transmit power of the UE on a carrier of the unlicensed spectrum or a maximum transmit power of the UE on a carrier of the unlicensed spectrum.
The apparatus of any one of claims 14 to 17, further comprising: a receiving unit;

the receiving unit is configured to receive energy detection threshold offset information, where the energy detection offset information is configured by a base station for the UE; or,

and the processing unit is used for acquiring the energy detection threshold offset information according to the current wireless parameter information.
The apparatus of claim 18,

and the processing unit is used for acquiring energy detection offset information corresponding to the current wireless parameter information from the corresponding relation between the candidate wireless parameter information and the candidate energy detection offset information according to the current wireless parameter information.
The apparatus of claim 19, wherein the receiving unit is further configured to receive a correspondence between the candidate radio parameter information and candidate energy detection offset information.
The apparatus of any one of claims 18 to 20,

the current wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, signal to interference and noise ratio SINR of the UE, and transmit power of the UE.
An apparatus for receiving a signal, the apparatus comprising: a transmitting unit and a receiving unit;

the sending unit is used for sending energy detection threshold offset information; the energy detection threshold offset information is used for improving the energy detection threshold offset of the user equipment;

the receiving unit is configured to receive a signal sent by the UE.
The apparatus of claim 9, wherein the apparatus further comprises: a processing unit;

and the processing unit is used for configuring the energy detection threshold offset information.
The apparatus of claim 22 or 23, wherein the sending unit is further configured to send a correspondence between candidate radio parameter information and candidate energy detection threshold offset information.
The apparatus of claim 24,

the candidate wireless parameter information includes at least one of propagation path loss information from the UE to the base station, propagation path loss information from the base station to the UE, reference signal received power RSRP of the UE, reference signal received quality RSRQ of the UE, received signal strength indication RSSI of the UE, signal to interference and noise ratio SINR of the UE, and transmit power of the UE.
The apparatus of any one of claims 22 to 25,

the energy detection threshold offset information includes at least one energy detection threshold offset value or an index of at least one energy detection threshold offset value.