WO2017000374A1

WO2017000374A1 - Service detection method, service detection system, terminal, and base station

Info

Publication number: WO2017000374A1
Application number: PCT/CN2015/088466
Authority: WO
Inventors: 朱亚军; 李明菊; 张云飞
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-06-30
Filing date: 2015-08-29
Publication date: 2017-01-05
Also published as: CN105611552A

Abstract

Provided are a service detection method when an LTE system operates on an unauthorized frequency band, a service detection system when an LTE system operates on an unauthorized frequency band, a terminal, and a base station. The service detection method when an LTE system operates on an unauthorized frequency band comprises: detecting whether a target detection signal exists on a current subframe of the unauthorized frequency band, so as to confirm whether a base station providing a service to the terminal has occupied an idle channel; when the target detection signal is detected, confirming that the base station has occupied the idle channel, so that the base station executes service scheduling on the unauthorized frequency band; and when the target detection signal is not detected, continuing to detect whether the target detection signal exists on subframes following the current subframe. By means of the technical solution, energy consumption of a terminal can be effectively reduced, and a position where a base station successfully occupies a channel can be learned accurately while achieving the purpose of energy saving, so that the case where the terminal misses a scheduling chance can be avoided effectively.

Description

Service detection method and service detection system, terminal and base station

Technical field

The present invention relates to the field of communications technologies, and in particular, to a service detection method when an LTE system operates in an unlicensed frequency band, a service detection system when the LTE system operates in an unlicensed frequency band, a terminal, and a base station.

Background technique

At present, with the rapid development of the mobile service, the capacity of the existing wireless spectrum allocated to the mobile service cannot meet the requirements. Mechanisms in ^{3GPP (The 3 rd Generation Partnership Project} , a third generation mobile communication partner organization) Rel-13 stage, a technique called LAA (Licensed Assisted Access, assisted access technologies) is introduced. In the LAA mechanism, the transmission of mobile communication can be carried on an unlicensed spectrum, such as the 5 GHz band. These unlicensed spectrums are currently mainly used in systems such as WIFI, Bluetooth, radar, and medical.

Due to the diversity and complexity of the system on the unlicensed spectrum, the use of the LTE (Long Term Evolution) mechanism for the unlicensed spectrum cannot guarantee the security of the user and the stability of the connection. Therefore, in the mechanism of the LAA, the licensed spectrum is used to assist access on the unlicensed spectrum through a CA (Carrier Aggregation) mechanism. At present, there are two working modes for using LTE on an unlicensed spectrum. One is SDL (Supplemental Downlink), that is, only downlink transmission subframes; the other is TDD mode, which includes both downlink transmission subframes and The uplink transmission subframe is as shown in FIG. 1.

In the unlicensed spectrum, multiple systems need to compete for resources. In order to ensure fair sharing between systems, a mechanism called “Let, Listen Before Talk” is introduced. That is to say, the system competing for the resource needs to monitor whether the channel is being occupied by another system before occupying the channel. If the channel is idle, then the system can take up the channel. If the channel is busy, then the system cannot occupy the channel. At present, there are two LBT mechanisms, one is FBE (Frame based equipment), and the other is LBE (Load based equipment). In the case of FBE, you need to press The channel is idle or not detected in a fixed period; in the case of the LBE, the detection of the channel idleness or not can be initiated at any time according to the demand of the service.

At present, energy saving of terminals has become an urgent problem to be solved. Considering that in the scenario of a small cell, the switch state of the small cell may change frequently. Therefore, if the terminal served by the small cell is always connected, the data needs to be detected in each frame. The transmission, which leads to higher energy consumption.

In order to solve the above problems, some terminal detection schemes are proposed. For example, it is possible to determine whether the terminal needs to perform data detection by detecting the presence or absence of the pilot signal, however, on the unlicensed spectrum, especially in the LBE. In the case of the pilot signal, the presence or absence of the pilot signal depends on the location of the channel detection, that is, when the channel is idle, and therefore, may affect the accuracy of the data detection by the terminal; or may pass through the physical layer through the serving base station. The signaling informs the terminal of the set of subframes opened by the serving base station. However, this method cannot be applied to the unlicensed frequency band as well, because the base station cannot know whether the channel detection can succeed. .

Therefore, a method for detecting a wake-up terminal applied to an unlicensed frequency band is needed to effectively avoid the terminal missing the scheduling opportunity and avoid consuming more energy to achieve energy saving.

Summary of the invention

The invention is based on the above problems, and proposes a new technical solution, which can effectively reduce the energy consumption of the terminal, and can accurately know the location of the successfully occupied channel of the base station while achieving the purpose of energy saving, thereby effectively avoiding the terminal being missed. Scheduling opportunities.

In view of the above, the first aspect of the present invention provides a service detection method for an LTE system when operating in an unlicensed frequency band, where the method includes: detecting whether a target detection signal exists in a current subframe of the unlicensed frequency band, Determining whether the base station serving the terminal has occupied the idle channel; when detecting the target detection signal, confirming that the base station has occupied the idle channel, so that the base station performs on the unlicensed frequency band Traffic scheduling; detecting, when the target detection signal is not detected, whether the target detection signal is present on a subframe subsequent to the current subframe.

In the technical solution, by detecting whether there is a target detection signal on the current subframe of the unlicensed frequency band, if the target detection signal is detected, it indicates that the base station has occupied the idle channel, Performing service scheduling on the unlicensed frequency band. Otherwise, continuing to detect whether there is a target detection signal on the subframe after the current subframe, that is, detecting each subframe on the unlicensed frequency band until the target detection signal is detected. Whether the base station serving the terminal has occupied the idle channel, so that the energy consumption of the terminal can be effectively reduced, and the location of the successfully occupied channel of the base station can be accurately learned while achieving the purpose of energy saving, thereby effectively avoiding the terminal being missed. Scheduling opportunities.

In the foregoing technical solution, before detecting whether the target detection signal exists on the current subframe, the method further includes: receiving RRC signaling, a MAC CE signal, or physical layer signaling from the base station, to obtain And determining, by the configuration information of the target detection signal, whether the target detection signal exists on the current subframe according to the configuration information of the target detection signal.

In this technical solution, the RRC signaling, the MAC CE signal, or the physical layer signaling from the base station is received in advance to obtain configuration information of the target detection signal, and then, according to the configuration information of the target detection signal, whether the target exists in the current subframe is detected. The detection signal is used as a detection basis by using the configuration information of the target detection signal, thereby further improving the accuracy of the service detection on the unlicensed frequency band, and avoiding the terminal missing the scheduling opportunity.

In the above technical solution, preferably, the target detection signal includes: a reserved signal or a pilot signal.

In this technical solution, the target detection signal includes, but is not limited to, a reserved signal or a pilot signal, and those skilled in the art should understand that any solution suitable for solving the wake-up terminal applied to the unlicensed frequency band can be used as the solution. The target detection signal can further improve the accuracy of service detection on the unlicensed frequency band by detecting the diversity of the signal, and avoid the terminal missing the scheduling opportunity.

In the above technical solution, preferably, when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information; when the target When the detection signal is the pilot signal, the configuration information of the pilot signal includes: location information of the pilot signal and resource occupation information.

In the technical solution, when the target detection signal is a reserved signal, the configuration information specifically includes: a signal sequence of the reserved signal and resource occupation information (such as occupied frequency domain features and time domain features); when the target detection signal is When the pilot signal is used, the configuration information thereof specifically includes: a pilot signal Location information and resource occupation information, it should be noted that if the configuration information of the pilot signal does not change, it is only necessary to perform detection at the original location. If new pilot signal configuration information is introduced, then it is necessary to Knowing the new pilot signal configuration information to ensure the accuracy of the detection, and thus accurately knowing the location of the channel successfully occupied by the base station, so as to effectively avoid the terminal missing the scheduling opportunity.

According to a second aspect of the present invention, a service detection system for an LTE system operating in an unlicensed frequency band is provided for a terminal, comprising: a detecting unit, configured to detect whether a target exists in a current subframe of the unlicensed frequency band Detecting a signal to confirm whether the base station serving the terminal has occupied the idle channel; and confirming unit, when detecting the target detection signal, confirming that the base station has occupied the idle channel, so that the base station Performing a service scheduling on the unlicensed frequency band; and the detecting unit is further configured to: continue to detect whether the target detection exists on a subframe subsequent to the current subframe when the target detection signal is not detected signal.

In the technical solution, by detecting whether there is a target detection signal on the current subframe of the unlicensed frequency band, if the target detection signal is detected, indicating that the base station has occupied the idle channel, the service scheduling can be performed on the unlicensed frequency band; otherwise, Continuing to detect whether there is a target detection signal on the subframe after the current subframe, that is, detecting each subframe on the unlicensed frequency band until the target detection signal is detected to confirm whether the base station serving the terminal is occupied To the idle channel, the energy consumption of the terminal can be effectively reduced. When the purpose of energy saving is achieved, the location of the channel successfully occupied by the base station can be accurately learned, thereby effectively avoiding the terminal missing the scheduling opportunity. In the above technical solution, preferably, the method further includes: a receiving unit, configured to receive an RRC signaling, a MAC CE signal, or a physical layer from the base station before detecting whether the target detection signal exists on the current subframe And signaling, to obtain configuration information of the target detection signal, and detecting, according to the configuration information of the target detection signal, whether the target detection signal exists on the current subframe.

In this technical solution, the target detection signal includes, but is not limited to, a reserved signal or a pilot signal, which should be understood by those skilled in the art as long as it is suitable for solving the diversity of the detection signals applied to the wake-up terminal applied to the unlicensed frequency band for detection. Sexuality can further improve the accuracy of service detection on unlicensed frequency bands and avoid terminal missed scheduling opportunities.

In the technical solution, when the target detection signal is a reserved signal, the configuration information specifically includes: a signal sequence of the reserved signal and resource occupation information (such as occupied frequency domain features and time domain features); when the target detection signal is When the pilot signal is used, the configuration information specifically includes: location information of the pilot signal and resource occupancy information. It should be noted that if the configuration information of the pilot signal does not change, then only the original location needs to be detected. If a new pilot signal configuration information is introduced, the new pilot signal configuration information needs to be known in advance to ensure the accuracy of the detection, thereby accurately knowing the location of the successfully occupied channel of the base station, so as to effectively avoid the terminal missing the scheduling opportunity.

According to the third aspect of the present invention, a service detection method for an LTE system operating in an unlicensed frequency band is provided. The base station includes: transmitting configuration information of a target detection signal to a terminal, so that the terminal according to the target The configuration information of the detection signal detects whether the target detection signal exists on the current subframe of the unlicensed frequency band; when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band.

In the technical solution, the configuration information of the target detection signal is sent to the terminal, so that the terminal detects whether the target detection signal exists in the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal, and further determines whether the base station has successfully occupied. Channel, and when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band, so that the energy consumption of the terminal can be effectively reduced, and the location of the successfully occupied channel of the base station can be accurately learned while achieving the purpose of energy saving. Thereby effectively avoiding the terminal missing the scheduling opportunity.

In the above technical solution, preferably, configuration information of the target detection signal is sent to the terminal by means of RRC signaling, a MAC CE signal, or physical layer signaling; and the target detection signal includes: a reserved signal or a pilot signal; when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information.

In this technical solution, the terminal target is notified by means of RRC (Radio Resource Control) signaling, MAC (Medium Access Control) CE (Control Element) signal or physical layer signaling. The configuration information of the detection signal is used for the terminal to detect whether the target detection signal exists in the current subframe according to the configuration information of the target detection signal, thereby ensuring the accuracy of the detection.

The target detection signal includes, but is not limited to, a reserved signal or a pilot signal. When the target detection signal is a reserved signal, the configuration information specifically includes: a signal sequence of the reserved signal and resource occupation information (such as an occupied frequency domain). Features and time domain features); it should be noted that those skilled in the art should understand that as long as it is suitable for solving the wake-up terminal applied to the unlicensed frequency band for detection, it can be used as the target detection signal of the scheme, and the detection signal is diverse. Sexuality can further improve the accuracy of service detection on unlicensed frequency bands and avoid terminal missed scheduling opportunities.

In the above technical solution, preferably, the method further includes: monitoring whether configuration information of the pilot signal changes when the target detection signal is the pilot signal, where configuration information of the pilot signal includes And: the location information and the resource occupation information of the pilot signal; and when the change is detected, transmitting the changed configuration information of the pilot signal to the terminal.

In the technical solution, by monitoring whether the configuration information of the pilot signal changes, and when the change occurs, the latest configuration information is notified to the terminal, so that the terminal performs detection according to the configuration information of the changed pilot signal, and ensures detection. The accuracy of the channel, and the location of the pilot signal, and the resource occupancy information are specifically included in the configuration information of the pilot signal.

According to a fourth aspect of the present invention, a service detection system for an LTE system operating in an unlicensed frequency band is provided for a base station, comprising: a sending unit, configured to send configuration information of a target detection signal to the terminal, so that the The terminal detects the location information according to the configuration information of the target detection signal Whether the target detection signal exists on the current subframe of the unlicensed frequency band, and the scheduling unit is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.

In the foregoing technical solution, the sending unit is specifically configured to: send, by using RRC signaling, a MAC CE signal, or physical layer signaling, configuration information of the target detection signal to the terminal; and the target The detection signal includes: a reserved signal or a pilot signal; when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information.

In the technical solution, the configuration information of the target detection signal is sent to the terminal by means of RRC signaling, the MAC CE signal, or the physical layer signaling, so that the terminal detects whether the target detection exists in the current subframe according to the configuration information of the target detection signal. Signal to ensure the accuracy of the test.

In the above technical solution, the method further includes: a monitoring unit, configured to monitor, when the target detection signal is the pilot signal, whether configuration information of the pilot signal changes, wherein the pilot The configuration information of the signal includes: location information of the pilot signal and resource occupation information; and the sending unit is further configured to: when the change is detected, send the changed configuration information of the pilot signal to the Said terminal.

In the technical solution, by monitoring whether the configuration information of the pilot signal changes, and When the change occurs, the latest configuration information is notified to the terminal, so that the terminal performs detection according to the configuration information of the changed pilot signal, thereby ensuring the accuracy of the detection, and thereby accurately knowing the location of the successfully occupied channel of the base station, thereby effectively avoiding the terminal being missed. The scheduling information, where the configuration information of the pilot signal specifically includes: location information of the pilot signal and resource occupation information.

According to a fifth aspect of the present invention, there is provided a terminal, comprising: a service detection system for an LTE system for a terminal operating in an unlicensed frequency band according to any one of the foregoing technical solutions, and thus having the above technical solution All the beneficial effects of the service detection system when the LTE system for the terminal works in the unlicensed frequency band are not described herein.

According to a sixth aspect of the present invention, a base station is provided, comprising: a service detection system for an LTE system for a base station operating in an unlicensed frequency band, according to any one of the foregoing technical solutions, and thus having the foregoing technical solution All the beneficial effects of the service detection system when the LTE system for the base station works in the unlicensed frequency band are not described herein.

The technical solution of the present invention can effectively reduce the energy consumption of the terminal, and can accurately know the location of the successfully occupied channel of the base station while achieving the purpose of energy saving, thereby effectively avoiding the terminal missing the scheduling opportunity.

DRAWINGS

1 is a schematic diagram showing the operation of an unlicensed frequency band in one embodiment of the related art;

FIG. 2 is a schematic flowchart diagram of a service detecting method when an LTE system operates in an unlicensed frequency band according to an embodiment of the present invention; FIG.

3 is a block diagram showing a traffic detection system when an LTE system operates in an unlicensed band according to an embodiment of the present invention;

4 is a flow chart showing a method for detecting a service when an LTE system operates in an unlicensed frequency band according to another embodiment of the present invention;

FIG. 5 is a block diagram showing a service detection system when an LTE system operates in an unlicensed band according to another embodiment of the present invention; FIG.

Figure 6 shows a block diagram of a terminal in accordance with one embodiment of the present invention;

Figure 7 shows a block diagram of a base station in accordance with one embodiment of the present invention.

detailed description

The above described objects, features and advantages of the present invention will become more apparent from the detailed description of the appended claims. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a full understanding of the invention, but the invention may be practiced otherwise than as described herein. Limitations of the embodiments.

FIG. 2 is a flow chart showing a method for detecting a service when an LTE system operates in an unlicensed band according to an embodiment of the present invention.

As shown in FIG. 2, a service detection method for an LTE system in an unlicensed band according to an embodiment of the present invention is used for a terminal, including: Step 202: detecting whether a target detection exists in a current subframe of the unlicensed frequency band Signaling to confirm whether the base station serving the terminal has occupied the idle channel; and step 204, when detecting the target detection signal, confirming that the base station has occupied the idle channel, so that the base station is in the The service scheduling is performed on the unlicensed frequency band; in step 206, when the target detection signal is not detected, whether the target detection signal exists is continuously detected on the subframe subsequent to the current subframe.

In the technical solution, by detecting whether there is a target detection signal on the current subframe of the unlicensed frequency band, if the target detection signal is detected, indicating that the base station has occupied the idle channel, the service scheduling can be performed on the unlicensed frequency band; otherwise, Continuing to detect whether there is a target detection signal on the subframe after the current subframe, that is, detecting each subframe on the unlicensed frequency band until the target detection signal is detected to confirm whether the base station serving the terminal is occupied To the idle channel, the energy consumption of the terminal can be effectively reduced. When the purpose of energy saving is achieved, the location of the channel successfully occupied by the base station can be accurately learned, thereby effectively avoiding the terminal missing the scheduling opportunity.

In the foregoing technical solution, preferably, before step 202, the method further includes: receiving RRC signaling, a MAC CE signal, or physical layer signaling from the base station, to acquire configuration information of the target detection signal, and according to the target The configuration information of the detection signal detects whether the target detection signal is present on the current subframe.

In this technical solution, the RRC signaling and the MAC CE letter from the base station are received in advance. No. or physical layer signaling to obtain configuration information of the target detection signal, and further detecting whether there is a target detection signal in the current subframe according to the configuration information of the target detection signal, and using the configuration information of the target detection signal as a detection basis to further improve the presence of Accuracy of service detection on the licensed frequency band to prevent the terminal from missing the scheduling opportunity.

3 shows a block diagram of a traffic detection system when an LTE system operates in an unlicensed band, in accordance with an embodiment of the present invention.

As shown in FIG. 3, a service detection system 300 for an LTE system in an unlicensed frequency band is used in a terminal, and includes: a detecting unit 302, configured to detect a current subframe of the unlicensed frequency band. Whether there is a target detection signal to confirm whether the base station serving the terminal has occupied the idle channel; the confirmation unit 304 is configured to detect the target When detecting the signal, confirming that the base station has occupied the idle channel, so that the base station performs service scheduling on the unlicensed frequency band; and the detecting unit 302 is further configured to: when the target detection signal is not detected And continuing to detect whether the target detection signal exists on the subframe subsequent to the current subframe.

In the technical solution, by detecting whether there is a target detection signal on the current subframe of the unlicensed frequency band, if the target detection signal is detected, indicating that the base station has occupied the idle channel, the service scheduling can be performed on the unlicensed frequency band; otherwise, Continuing to detect whether there is a target detection signal on the subframe after the current subframe, that is, detecting each subframe on the unlicensed frequency band until the target detection signal is detected to confirm whether the base station serving the terminal is occupied To the idle channel, the energy consumption of the terminal can be effectively reduced. When the purpose of energy saving is achieved, the location of the channel successfully occupied by the base station can be accurately learned, thereby effectively avoiding the terminal missing the scheduling opportunity. In the above technical solution, preferably, the method further includes: a receiving unit 306, configured to receive RRC signaling, a MAC CE signal, or a physics from the base station before detecting whether the target detection signal exists on the current subframe. Layer signaling, to obtain configuration information of the target detection signal, and detecting whether the target detection signal exists on the current subframe according to configuration information of the target detection signal.

In the above technical solution, preferably, when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence and a resource occupation of the reserved signal Information: when the target detection signal is the pilot signal, the configuration information of the pilot signal includes: location information of the pilot signal and resource occupation information.

FIG. 4 is a flow chart showing a method for detecting a service when an LTE system operates in an unlicensed band according to another embodiment of the present invention.

As shown in FIG. 4, a service detection method for an LTE system in an unlicensed band according to another embodiment of the present invention is used in a base station, including: Step 402, transmitting configuration information of a target detection signal to a terminal, so that the The terminal detects whether the target detection signal exists on the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal; Step 404, when the terminal detects the target detection signal, the unauthorized Perform service scheduling on the frequency band.

In this technical solution, through RRC (Radio Resource Control, radio resource control) Signaling, MAC (Medium Access Control), CE (Control Element) signal or physical layer signaling to inform the terminal of the configuration information of the target detection signal for the terminal to configure according to the target detection signal The information detects whether there is a target detection signal on the current subframe to ensure the accuracy of the detection.

FIG. 5 is a block diagram showing a traffic detection system when an LTE system operates in an unlicensed band according to another embodiment of the present invention.

As shown in FIG. 5, a service detection system 500 for an LTE system in an unlicensed frequency band is used in a base station, and includes: a sending unit 502, configured to send configuration information of a target detection signal to a terminal, where The detecting, by the terminal, detecting, according to the configuration information of the target detection signal, whether the target detection signal exists on a current subframe of the unlicensed frequency band, and the scheduling unit 504, configured to detect the target detection signal at the terminal When the traffic scheduling is performed on the unlicensed frequency band.

In the technical solution, the configuration information of the target detection signal is sent to the terminal to end The terminal detects whether the target detection signal exists in the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal, and further determines whether the base station has successfully occupied the channel, and performs the service on the unlicensed frequency band when the terminal detects the target detection signal. Scheduling, in this way, can effectively reduce the energy consumption of the terminal, and can accurately know the location of the successfully occupied channel of the base station while achieving the purpose of energy saving, thereby effectively avoiding the terminal missing the scheduling opportunity.

In the above technical solution, the sending unit 502 is specifically configured to: send configuration information of the target detection signal to the terminal by means of RRC signaling, a MAC CE signal, or physical layer signaling; The target detection signal includes: a reserved signal or a pilot signal; when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information.

In the above technical solution, the method further includes: a monitoring unit 506, configured to monitor, when the target detection signal is the pilot signal, whether configuration information of the pilot signal changes, wherein the guiding The configuration information of the frequency signal includes: location information of the pilot signal and resource occupation information; and the sending unit 502 is further configured to: when the change is detected, send the changed configuration information of the pilot signal To the terminal.

Figure 6 shows a block diagram of a terminal in accordance with one embodiment of the present invention.

As shown in FIG. 6, the terminal 600 of an embodiment of the present invention includes: the service detection system 300 when the LTE system for the terminal 600 operates in an unlicensed frequency band, according to any one of the foregoing technical solutions, and thus has All the beneficial effects of the service detecting system 300 when the LTE system for the terminal 600 operates in the unlicensed frequency band according to any one of the foregoing technical solutions will not be described herein.

As shown in FIG. 7, the base station 700 of an embodiment of the present invention includes: the service detection system 500 when the LTE system for the base station 700 operates in an unlicensed frequency band, as described in any one of the foregoing technical solutions, and thus has All the beneficial effects of the service detection system 500 when the LTE system for the base station 700 works in the unlicensed frequency band is not described here.

The technical solution of the present invention is described in detail above with reference to the accompanying drawings, which can effectively reduce the energy consumption of the terminal, and can accurately know the location of the successfully occupied channel of the base station while achieving the purpose of energy saving, thereby effectively avoiding the terminal missing the scheduling opportunity.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A service detection method for an LTE system operating in an unlicensed frequency band is used for a terminal, and the method includes:

Detecting whether a target detection signal exists on a current subframe of the unlicensed frequency band to confirm whether a base station serving the terminal has occupied an idle channel;

When detecting the target detection signal, confirming that the base station has occupied an idle channel, so that the base station performs service scheduling on the unlicensed frequency band;

When the target detection signal is not detected, whether the target detection signal is present is continuously detected on the subframe subsequent to the current subframe.
The method for detecting a service when the LTE system is operating in an unlicensed frequency band according to claim 1, wherein before detecting whether the target detection signal exists on the current subframe, the method further includes:

Receiving RRC signaling, a MAC CE signal, or physical layer signaling from the base station, to obtain configuration information of the target detection signal, and detecting, according to configuration information of the target detection signal, whether the current subframe exists. Target detection signal.
The method for detecting a service when the LTE system operates in an unlicensed frequency band according to claim 1 or 2, wherein the target detection signal comprises: a reserved signal or a pilot signal.
The method for detecting a service when an LTE system according to claim 3 operates in an unlicensed frequency band, characterized in that:

When the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information;

When the target detection signal is the pilot signal, the configuration information of the pilot signal includes: location information of the pilot signal and resource occupancy information.
A service detection system for an LTE system operating in an unlicensed frequency band is used for a terminal, and includes:

a detecting unit, configured to detect whether a target detection signal exists on a current subframe of the unlicensed frequency band, to confirm whether a base station serving the terminal has occupied an idle channel;

a confirming unit, configured to confirm that the base station is occupied when the target detection signal is detected Go to an idle channel to cause the base station to perform traffic scheduling on the unlicensed band;

The detecting unit is further configured to: when the target detection signal is not detected, continue to detect whether the target detection signal exists on a subframe subsequent to the current subframe.
The service detection system of the LTE system according to claim 5, wherein the LTE system operates in an unlicensed frequency band, and further includes:

a receiving unit, configured to receive RRC signaling, a MAC CE signal, or physical layer signaling from the base station to detect a configuration of the target detection signal before detecting whether the target detection signal exists on the current subframe And detecting, according to the configuration information of the target detection signal, whether the target detection signal exists on the current subframe.
The service detection system when the LTE system operates in an unlicensed frequency band according to claim 5 or 6, wherein the target detection signal comprises: a reserved signal or a pilot signal.
The service detecting system when the LTE system according to claim 7 operates in an unlicensed frequency band, characterized in that

When the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information;

When the target detection signal is the pilot signal, the configuration information of the pilot signal includes: location information of the pilot signal and resource occupancy information.
A service detection method for an LTE system when operating in an unlicensed frequency band is used in a base station, and the method includes:

Transmitting the configuration information of the target detection signal to the terminal, so that the terminal detects whether the target detection signal exists on the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal;

When the terminal detects the target detection signal, performing traffic scheduling on the unlicensed frequency band.
The service detecting method when the LTE system according to claim 9 operates in an unlicensed frequency band, characterized in that

Transmitting, by the RRC signaling, the MAC CE signal, or the physical layer signaling, configuration information of the target detection signal to the terminal;

The target detection signal includes: a reserved signal or a pilot signal;

When the target detection signal is the reserved signal, the configuration information packet of the reserved signal The signal sequence and resource occupancy information of the reserved signal are included.
The method for detecting a service when the LTE system is operating in an unlicensed frequency band according to claim 10, further comprising:

When the target detection signal is the pilot signal, monitoring whether the configuration information of the pilot signal changes, wherein the configuration information of the pilot signal includes: location information of the pilot signal and resource occupation Information;

The changed configuration information of the pilot signal is transmitted to the terminal when a change is detected.
A service detection system for an LTE system operating in an unlicensed frequency band, for a base station, comprising:

a sending unit, configured to send configuration information of the target detection signal to the terminal, so that the terminal detects whether the target detection signal exists on a current subframe of the unlicensed frequency band according to the configuration information of the target detection signal;

And a scheduling unit, configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.
The service detecting system when the LTE system according to claim 12 operates in an unlicensed frequency band, characterized in that

The sending unit is specifically configured to: send, by using RRC signaling, a MAC CE signal, or physical layer signaling, configuration information of the target detection signal to the terminal;

The target detection signal includes: a reserved signal or a pilot signal;

When the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information.
The service detection system of the LTE system of the present invention, when the LTE system is operating in an unlicensed frequency band, further comprising:

a monitoring unit, configured to monitor whether the configuration information of the pilot signal changes when the target detection signal is the pilot signal, where the configuration information of the pilot signal includes: the pilot signal Location information and resource occupancy information;

The sending unit is further configured to: when the change is detected, send the changed configuration information of the pilot signal to the terminal.
A terminal, comprising: the method of any one of claims 5 to 8 The service detection system of the LTE system when operating in an unlicensed band.
A base station, comprising: a service detection system when the LTE system according to any one of claims 12 to 14 operates in an unlicensed frequency band.