WO2017000413A1 - 业务检测方法及业务检测系统、终端和基站 - Google Patents

业务检测方法及业务检测系统、终端和基站 Download PDF

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Publication number
WO2017000413A1
WO2017000413A1 PCT/CN2015/091368 CN2015091368W WO2017000413A1 WO 2017000413 A1 WO2017000413 A1 WO 2017000413A1 CN 2015091368 W CN2015091368 W CN 2015091368W WO 2017000413 A1 WO2017000413 A1 WO 2017000413A1
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Prior art keywords
signal
target detection
terminal
detection signal
frequency band
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PCT/CN2015/091368
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English (en)
French (fr)
Inventor
朱亚军
李明菊
张云飞
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • 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.
  • LAA Licensed Assisted Access, assisted access technologies
  • 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.
  • CA Carrier Aggregation
  • 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.
  • 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.
  • this method cannot be applied to the unlicensed frequency band as well, because the base station cannot know whether the channel detection can succeed. .
  • 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.
  • the invention is based on the above problems, and proposes a new technical solution.
  • the LBT mechanism of the LBE When the LBT mechanism of the LBE is used, the energy consumption of the terminal can be effectively reduced, and the energy-saving purpose can be accurately obtained while the base station successfully occupies the channel. The location, thus effectively avoiding the terminal missing the scheduling opportunity.
  • 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 terminal includes: buffering all service data received in a current subframe of the unlicensed frequency band. Determining whether a detection command from a base station serving the terminal is received on any of the subsequent subframes of the current subframe; determining whether to detect the all service data according to the determination result to determine the Whether there is a target detection signal on the current subframe.
  • all the service data received in the current subframe of the unlicensed band is first buffered, and according to whether the slave station receives the check according to any subframe after the current subframe.
  • the judgment result of the test command determines whether all the service data received in the current subframe is detected, and further determines whether the target detection signal exists in the current subframe, so that the energy consumption of the terminal can be effectively reduced, and the energy saving purpose 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.
  • determining, according to the determining result, whether the all the service data is detected to determine whether the target detection signal is present in the current subframe specifically: when the determining result is If yes, the all the service data is detected according to the received detection command to determine whether the target detection signal exists on the current subframe to confirm whether the base station has occupied an idle channel; When the result is no, all the service data received on the cached current subframe is released.
  • the method further includes: receiving physical layer signaling from the base station, acquiring configuration information of the target detection signal, and detecting, according to the configuration information of the target detection signal, whether the current subframe exists.
  • Target detection signal when the determining result is yes, detecting whether the target detection signal exists on the current subframe according to the received detection command, to confirm whether the base station is occupied Before the idle channel, the method further includes: receiving physical layer signaling from the base station, acquiring configuration information of the target detection signal, and detecting, according to the configuration information of the target detection signal, whether the current subframe exists. Target detection signal.
  • the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and further detecting whether the target detection signal exists on the at least one target symbol according to the configuration information of the target detection signal.
  • the configuration information of the target detection signal is used as a detection basis to further improve the accuracy of the service detection on the unlicensed frequency band, and avoid the terminal missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal; and when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: a signal sequence and resource occupancy information of the reserved signal; when the target detection signal is the pilot signal, the configuration information of the pilot signal includes: the pilot signal Location information and resource occupancy information.
  • 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 the service detection on the unlicensed frequency band by detecting the diversity of the signal, and avoid the terminal missing the scheduling opportunity; and when the target detection signal is the reserved signal, the configuration information specifically includes: The signal sequence and resource occupation information of the reserved signal (such as occupied frequency domain features and time domain features); when the target detection signal is a pilot signal, 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, it is only necessary to perform detection at the original location. If new pilot signal configuration information is introduced, it is necessary to know the new pilot signal configuration in advance. Information to ensure the accuracy of the detection, and thus accurately know the location of the channel successfully occupied by the base station To effectively prevent the terminal missed scheduling opportunities.
  • a service detection system for an LTE system operating in an unlicensed frequency band comprising: a buffer unit, configured to buffer, received in a current subframe of the unlicensed frequency band a determining unit, configured to determine whether a detection command from a base station serving the terminal is received in any subframe subsequent to the current subframe, and a determining unit, configured to determine, according to the determination result, whether The all service data is detected to determine whether a target detection signal exists on the current subframe.
  • all the service data received in the current subframe of the unlicensed frequency band is first buffered, and determined according to the determination result of whether the detection command from the base station is received on any subframe subsequent to the current subframe. Whether all the service data received in the current subframe is detected, and then determining whether the target detection signal exists in the current subframe, so that the energy consumption of the terminal can be effectively reduced, and the base station can be accurately learned while achieving the purpose of energy saving. The location of the channel is occupied, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the determining unit specifically includes: a detecting unit, configured to: when the determining result is yes, detect, according to the received detection command, all the service data to determine the current Whether the target detection signal exists on the subframe to confirm whether the base station has occupied the idle channel; and the releasing unit is configured to release all the received in the current subframe of the buffer when the determination result is no Business data.
  • the method further includes: a receiving unit, configured to: when the determination result is yes, detect whether the target detection signal exists on the current subframe according to the received detection command, Receiving physical layer signaling from the base station to obtain configuration information of the target detection signal and detecting the current subframe according to configuration information of the target detection signal, before confirming whether the base station has occupied the idle channel Whether or not the target detection signal is present.
  • a receiving unit configured to: when the determination result is yes, detect whether the target detection signal exists on the current subframe according to the received detection command, Receiving physical layer signaling from the base station to obtain configuration information of the target detection signal and detecting the current subframe according to configuration information of the target detection signal, before confirming whether the base station has occupied the idle channel Whether or not the target detection signal is present.
  • the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and further detecting whether the target detection signal exists on the at least one target symbol according to the configuration information of the target detection signal.
  • the configuration information of the target detection signal is used as a detection basis to further improve the accuracy of the service detection on the unlicensed frequency band, and avoid the terminal missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal; and when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: The signal sequence and the resource occupation information of the reserved signal; 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.
  • 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 the service detection on the unlicensed frequency band by detecting the diversity of the signal, and avoid the terminal missing the scheduling opportunity; and when the target detection signal is the reserved signal, the configuration information specifically includes: The signal sequence and resource occupation information of the reserved signal (such as occupied frequency domain features and time domain features); when the target detection signal is a pilot signal, 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, then it is necessary to know the new The pilot signal configuration information ensures the accuracy of the detection, thereby accurately knowing the location of the channel successfully occupied by the base station, so as to effectively avoid the terminal missing the scheduling
  • a service detection method for an LTE system when operating in an unlicensed frequency band includes: sending a detection command to the terminal, so that the terminal detects the according to the detection command. Whether the target detection signal exists on the current subframe of the unlicensed frequency band, and the configuration information of the target detection signal is sent to the terminal, so that the terminal detects the unlicensed frequency band according to the configuration information of the target detection signal. Whether the target detection signal exists on the current subframe; when the terminal detects the target detection signal, performing service scheduling on the unlicensed frequency band.
  • the configuration information of the detection command and 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 after receiving the detection command.
  • the service scheduling is performed 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 avoid the terminal missed scheduling opportunities.
  • the detecting command is sent to the terminal by means of physical layer signaling in a licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band; Transmitting, to the terminal, configuration information of the target detection signal; and the target detection signal includes: a reserved signal or a pilot signal; when the target detection signal is the reserved signal, the reserved signal.
  • the configuration information includes: a signal sequence and resource occupation information of the reserved signal.
  • the detection command is sent to the terminal by means of physical layer signaling in the licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band
  • the target detection signal is sent to the terminal by means of physical layer signaling.
  • the configuration information is used for the terminal to detect according to the configuration information of the target detection signal, so as to ensure the accuracy of the detection, so that the power station can accurately know the location of the successfully occupied channel of the base station, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the target detection signal includes but is not limited to: a reserved signal or a pilot signal, when the target is detected
  • the configuration information includes: a signal sequence of the reserved signal and resource occupation information (such as 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. By detecting the diversity of the signal, the accuracy of the service detection on the unlicensed frequency band can be further improved, and the terminal is prevented from being missed. Scheduling opportunities.
  • 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.
  • 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.
  • the location information of any subsequent subframe of the current subframe is sent to the terminal by using a predefined or signaling configuration manner, so that the terminal is configured according to the current subframe.
  • the position information of any of the subsequent subframes determines whether the detection command is received.
  • a service detection system for an LTE system operating in an unlicensed frequency band includes: a sending unit, configured to send a detection command to the terminal, so that the terminal according to the The detecting command detects whether a target detection signal exists on a current subframe of the unlicensed frequency band, and sends configuration information of the target detection signal to the terminal, so that the terminal detects the configuration information according to the target detection signal.
  • the scheduling unit is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.
  • the configuration information of the detection command and 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 after receiving the detection command. And when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band, thus effectively reducing the capability of the terminal.
  • the amount of consumption while achieving the purpose of energy saving, can accurately know the location of the channel successfully occupied by the base station, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the sending unit is configured to: send, by using physical layer signaling, the detection command to the terminal in a licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band. Transmitting, by the physical layer signaling, configuration information of the target detection signal to the terminal; and the target detection signal includes: a reserved signal or a pilot signal; and 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 detection command is sent to the terminal by means of physical layer signaling in the licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band
  • the target detection signal is sent to the terminal by means of physical layer signaling.
  • the configuration information is used for the terminal to detect according to the configuration information of the target detection signal, so as to ensure the accuracy of the detection, so that the power station can accurately know the location of the successfully occupied channel of the base station, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the target detection signal includes, but is not limited to, a reserved signal or a pilot signal.
  • the configuration information specifically includes: a signal sequence of the reserved signal and resource occupation information (such as an occupied frequency domain).
  • resource occupation information such as an occupied frequency domain.
  • 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
  • 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.
  • 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.
  • the location information of any subsequent subframe of the current subframe is sent to the terminal by using a predefined or signaling configuration manner, so that the terminal is configured according to the current subframe.
  • the position information of any of the subsequent subframes determines whether the detection command is received.
  • 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.
  • a base station 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 when the LBT mechanism of the LBE is used, and can accurately know the location of the successfully occupied channel of the base station while effectively achieving the purpose of energy saving, thereby effectively avoiding the terminal missing the scheduling. opportunity.
  • 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
  • FIG. 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.
  • 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.
  • FIG. 8 shows an illustration of detecting according to a base station indication according to an embodiment of the present invention.
  • 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.
  • a service detection method for an LTE system in an unlicensed band is used for a terminal, including: Step 202: Cache all received on a current subframe of the unlicensed band Service data; step 204, determining whether a detection command from a base station serving the terminal is received in any subframe subsequent to the current subframe; and step 206, determining whether to all the services according to the determination result
  • the data is detected to determine if a target detection signal is present on the current subframe.
  • all the service data received in the current subframe of the unlicensed frequency band is first buffered, and determined according to the determination result of whether the detection command from the base station is received on any subframe subsequent to the current subframe. Whether all the service data received in the current subframe is detected, and then determining whether the target detection signal exists in the current subframe, so that the energy consumption of the terminal can be effectively reduced, and the base station can be accurately learned while achieving the purpose of energy saving. The location of the channel is occupied, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the step 206 includes: when the determining result is yes, detecting, according to the received detection command, all the service data to determine whether the current subframe exists.
  • the target detection signal is used to confirm whether the base station has occupied the idle channel; when the determination result is no, all the service data received in the cached current subframe is released.
  • the method further includes: receiving physical layer signaling from the base station, acquiring configuration information of the target detection signal, and detecting, according to the configuration information of the target detection signal, whether the current subframe exists.
  • Target detection signal when the determining result is yes, detecting whether the target detection signal exists on the current subframe according to the received detection command, to confirm whether the base station is occupied Before the idle channel, the method further includes: receiving physical layer signaling from the base station, acquiring configuration information of the target detection signal, and detecting, according to the configuration information of the target detection signal, whether the current subframe exists. Target detection signal.
  • the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and further detecting whether the target detection signal exists on the at least one target symbol according to the configuration information of the target detection signal.
  • the configuration information of the target detection signal is used as a detection basis to further improve the accuracy of the service detection on the unlicensed frequency band, and avoid the terminal missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal; and when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: The signal sequence and the resource occupation information of the reserved signal; 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.
  • 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 the service detection on the unlicensed frequency band by detecting the diversity of the signal, and avoid the terminal missing the scheduling opportunity; and when the target detection signal is the reserved signal, the configuration information specifically includes: The signal sequence and resource occupation information of the reserved signal (such as occupied frequency domain features and time domain features); when the target detection signal is a pilot signal, 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, it is only necessary to perform detection at the original location, if a new pilot signal configuration letter is introduced. Therefore, it is necessary to know the new pilot signal configuration information in advance to ensure the accuracy of the detection, and thus accurately know the location of the channel successfully occupied by the base station, so as to effectively avoid
  • FIG. 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.
  • the service detection system 300 when the LTE system operates in an unlicensed band is used for a terminal, and includes: a buffer unit 302, configured to buffer a current subframe of the unlicensed band. All the service data received; the determining unit 304 is configured to determine whether a detection command from the base station serving the terminal is received in any subframe subsequent to the current subframe; the determining unit 306, And determining, according to the determination result, whether all the service data is detected to determine whether a target detection signal exists on the current subframe.
  • all the service data received in the current subframe of the unlicensed frequency band is first buffered, and determined according to the determination result of whether the detection command from the base station is received on any subframe subsequent to the current subframe. Whether all the service data received in the current subframe is detected, and then determining whether the target detection signal exists in the current subframe, so that the energy consumption of the terminal can be effectively reduced, and the base station can be accurately learned while achieving the purpose of energy saving. The location of the channel is occupied, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the determining unit 306 specifically includes: a detecting unit 3062, configured to: when the determining result is yes, perform detection and determination on the all service data according to the received detection command Whether the target detection signal is present on the current subframe to confirm whether the base station has occupied the idle channel; and the releasing unit 3064 is configured to: when the determination result is no, release the buffer on the current subframe to receive All business data to.
  • the method further includes: a receiving unit 308, configured to: When the result of the disconnection is YES, detecting whether the target detection signal exists on the current subframe according to the received detection command to confirm whether the base station has occupied the idle channel, and receiving the physics from the base station 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.
  • a receiving unit 308 configured to: When the result of the disconnection is YES, detecting whether the target detection signal exists on the current subframe according to the received detection command to confirm whether the base station has occupied the idle channel, and receiving the physics from the base station 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.
  • the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and further detecting whether the target detection signal exists on the at least one target symbol according to the configuration information of the target detection signal.
  • the configuration information of the target detection signal is used as a detection basis to further improve the accuracy of the service detection on the unlicensed frequency band, and avoid the terminal missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal; and when the target detection signal is the reserved signal, the configuration information of the reserved signal includes: The signal sequence and the resource occupation information of the reserved signal; 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.
  • 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 the service detection on the unlicensed frequency band by detecting the diversity of the signal, and avoid the terminal missing the scheduling opportunity; and when the target detection signal is the reserved signal, the configuration information specifically includes: The signal sequence and resource occupation information of the reserved signal (such as occupied frequency domain features and time domain features); when the target detection signal is a pilot signal, 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, it is only necessary to perform detection at the original location. If new pilot signal configuration information is introduced, it is necessary to know the new pilot signal configuration in advance. Information to ensure the accuracy of the detection, and thus accurately know the location of the channel successfully occupied by the base station To effectively prevent the terminal missed scheduling opportunities.
  • 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.
  • an LTE system is in an unlicensed frequency band.
  • the service detecting method for the base station includes: Step 402: Send a detection command to the terminal, so that the terminal detects, according to the detection command, whether a target detection signal exists in a current subframe of the unlicensed frequency band, and And transmitting, by the terminal, the configuration information of the target detection signal, 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; When the terminal detects the target detection signal, performing traffic scheduling on the unlicensed frequency band.
  • the configuration information of the detection command and 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 after receiving the detection command.
  • the service scheduling is performed 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 avoid the terminal missed scheduling opportunities.
  • the detecting command is sent to the terminal by means of physical layer signaling in a licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band; Transmitting, to the terminal, configuration information of the target detection signal; and the target detection signal includes: a reserved signal or a pilot signal; when the target detection signal is the reserved signal, the reserved signal.
  • the configuration information includes: a signal sequence and resource occupation information of the reserved signal.
  • the detection command is sent to the terminal by means of physical layer signaling in the licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band
  • the target detection signal is sent to the terminal by means of physical layer signaling.
  • the configuration information is used for the terminal to detect according to the configuration information of the target detection signal, so as to ensure the accuracy of the detection, so that the power station can accurately know the location of the successfully occupied channel of the base station, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the target detection signal includes, but is not limited to, a reserved signal or a pilot signal.
  • the configuration information specifically includes: a signal sequence of the reserved signal and resource occupation information (such as an occupied frequency domain).
  • resource occupation information such as an occupied frequency domain.
  • 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.
  • 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.
  • the location information of any subsequent subframe of the current subframe is sent to the terminal by using a predefined or signaling configuration manner, so that the terminal is configured according to the current subframe.
  • the position information of any of the subsequent subframes determines whether the detection command is received.
  • 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.
  • the service detection system 500 when the LTE system is operating in an unlicensed frequency band, is used in a base station, and includes: a sending unit 502, configured to send a detection command to the terminal, so that the The terminal detects, according to the detection command, whether a target detection signal exists on a current subframe of the unlicensed frequency band, and sends configuration information of the target detection signal to the terminal, so that the terminal detects the signal according to the target.
  • the configuration information is used to detect whether the target detection signal exists on the current subframe of the unlicensed frequency band, and the scheduling unit 504 is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal .
  • the configuration information of the detection command and 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 after receiving the detection command.
  • the service scheduling is performed 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 avoid the terminal missed scheduling opportunities.
  • the sending unit 502 is specifically configured to send the detection to the terminal by means of physical layer signaling on a licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band. And transmitting, by the physical layer signaling, configuration information of the target detection signal to the terminal; and the target detection signal includes: a reserved signal or a pilot signal; when the target detection signal is the reservation And the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information.
  • the detection command is sent to the terminal by means of physical layer signaling in the licensed frequency band or other unlicensed frequency bands except the unlicensed frequency band
  • the target detection signal is sent to the terminal by means of physical layer signaling.
  • the configuration information is used for the terminal to detect according to the configuration information of the target detection signal, so as to ensure the accuracy of the detection, so that the power station can accurately know the location of the successfully occupied channel of the base station, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the target detection signal includes, but is not limited to, a reserved signal or a pilot signal.
  • the configuration information specifically includes: a signal sequence of the reserved signal and resource occupation information (such as an occupied frequency domain).
  • resource occupation information such as an occupied frequency domain.
  • 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 is further configured to: when the change is detected, send the changed configuration information of the pilot signal to The terminal.
  • 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
  • the sending unit is further configured to: when the change is detected, send the changed configuration information of the pilot signal to The terminal.
  • 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.
  • the location information of any subsequent subframe of the current subframe is sent to the terminal by way of pre-defined or signaling configuration, so that the terminal according to the foregoing
  • the position information of any of the subframes following the previous subframe determines whether the detection command is received.
  • Figure 6 shows a block diagram of a terminal in accordance with one embodiment of the present invention.
  • 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.
  • Figure 7 shows a block diagram of a base station in accordance with one embodiment of the present invention.
  • 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.
  • FIG. 8 shows a schematic diagram of detecting according to a base station indication, in accordance with one embodiment of the present invention.
  • the terminal will first buffer (cache) all service data at the subframe position at each subframe position, and then determine whether to perform detection according to the indication of the base station (ie, whether a detection command is received). As shown in FIG. 8, the terminal buffers all service data received in the entire subframe on the subframe N (current subframe), but the terminal does not detect on the subframe N. The terminal determines whether to perform detection on the subframe N according to an indication of the eNB (Evolved Node B, evolved base station) on the subframe N+1 (any subframe subsequent to the current subframe). If the eNB instructs the terminal to perform detection on the subframe N on the subframe N+1, the terminal will perform detection on the subframe N.
  • the eNB evolved Node B, evolved base station
  • the detection performed by the terminal on the subframe N may include functions such as synchronization, data demodulation, and the like.
  • the notification of the eNB on the subframe N+1 can be implemented by physical layer signaling.
  • the physical layer signaling may include configuration information of a pilot signal or a reserved signal (target detection signal) on the subframe N. If the eNB indicates on the subframe N+1 that the terminal does not need to perform the detection on the subframe N, the terminal will clear the received data on the subframe N of the buffer.
  • the indication information of the eNB transmitting on the subframe N+1 may be carried in the licensed frequency band or another unlicensed frequency band.
  • the method shown in Figure 8 is just an example.
  • the base station can also indicate whether the terminal needs to detect and perform detection on the subframe N on the N+M (any subframe after the current subframe) frames.
  • M is a predefined value or a value configured by signaling; if the signaling indicating the detection is physical layer signaling, the purpose of indicating the physical layer signaling of the terminal needs to be indicated, which can be performed by various methods.
  • a method is implemented by scrambling code of physical layer signaling, that is, a sequence pool can be defined, and the sequence in the sequence pool is scrambled by signaling with the physical layer, so that the terminal can pass the scrambling code information.
  • the indication is to let the terminal detect on the subframe N.
  • the scrambling code may also carry specific detection configuration information; another method is indicated in the DCI signaling, which may be indicated by defining a new DCI format or by multiplexing the original DCI format.

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Abstract

本发明提出了一种LTE系统在非授权频段工作时的业务检测方法、一种LTE系统在非授权频段工作时的业务检测系统、一种终端和一种基站，所述检测方法包括：缓存所述非授权频段的当前子帧上接收到的所有业务数据；判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；根据判断结果确定是否在所述当前子帧上进行检测，以确定所述当前子帧上是否存在目标检测信号。通过本发明的技术方案，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。

Description

业务检测方法及业务检测系统、终端和基站 技术领域
本发明涉及通信技术领域，具体而言，涉及一种LTE系统在非授权频段工作时的业务检测方法、一种LTE系统在非授权频段工作时的业务检测系统、一种终端和一种基站。
背景技术
目前，随着移动业务的快速发展，现有的分配给移动业务的无线频谱的容量已经无法满足要求了。在3GPP(The 3rd Generation Partnership Project，第三代移动通信伙伴组织)Rel-13阶段，一种称作LAA(Licensed Assisted Access，辅助的接入技术)的机制被引入了。在LAA机制中，移动通信的传输可以在非授权频谱上承载，如5GHz的频段。这些非授权频谱，目前主要是WIFI、蓝牙、雷达、医疗等系统在使用。
由于非授权频谱上系统的多样性和复杂性，直接把LTE(Long Term Evolution，长期演进)的机制用于非授权频谱上是无法保证用户的安全性以及连接的稳定性的。因此，在LAA的机制中，通过CA(Carrier Aggregation，载波聚合)机制，使用授权频谱来帮助非授权频谱上的接入。目前，在非授权频谱上使用LTE有两种工作方式，一种是补充下行(SDL，Supplemental Downlink)，即只有下行传输子帧；另一种是TDD模式，既包含下行传输子帧，也包含上行传输子帧，如图1所示。
在非授权频谱上，多个系统间需要竞争使用资源，为了保证系统间的公平共享，一种称为“先听后说”的机制(LBT，Listen Before Talk)被引入了。也就是说竞争使用资源的系统在占用信道之前需要去监听信道是否正在被别的系统所占用。如果信道是空闲的话，那么该系统就可以去占用信道。如果信道是忙的话，那么该系统无法占用信道。目前，LBT机制已有两种，一种是FBE(Frame based equipment，基于帧结构的设备)，一种是LBE(Load based equipment，基于负载的设备)。在FBE的情况下，需要按预 定周期进行信道空闲与否的检测；在LBE的情况下，可以根据业务的需求随时发起信道空闲与否的检测。
目前，终端的节能成为了一个亟待解决的问题。考虑到在small cell(小型基站)的场景下，由于small cell的开关状态是可能较为频繁的变化的，因此，被small cell服务的终端如果一直处于连接状态的话，需要在每一帧去检测数据的传输，由此会带来较高的能量消耗。
为解决上述问题，提出了一些终端检测的方案，比如，可以通过检测导频信号的存在与否来判断该帧上终端是否需要去做数据检测，然而，在非授权频谱上，尤其是在LBE的情况下，导频信号存在与否取决于信道检测在哪个位置上成功，即何时检测到信道空闲，因此，可能会影响终端进行数据检测的准确性；或者，可以通过服务基站经由物理层信令通知终端该服务基站所开启的子帧集合，然而这种方法下同样无法应用于非授权频段上，同样也是因为基站无法得知信道检测是否能够成功。。
因此，需要一种应用于非授权频段的唤醒终端进行检测的方法，以有效的避免终端错过调度机会，并且避免消耗较多的能量，达到节能的目的。
发明内容
本发明正是基于上述问题，提出了一种新的技术方案，在使用了LBE的LBT机制时，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
有鉴于此，本发明的第一方面提出了一种LTE系统在非授权频段工作时的业务检测方法，用于终端，包括：缓存所述非授权频段的当前子帧上接收到的所有业务数据；判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；根据判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在目标检测信号。
在该技术方案中，首先缓存非授权频段的当前子帧上接收到的所有业务数据，并根据在该当前子帧之后的任一子帧上是否接收到来自基站的检 测命令的判断结果，确定是否对当前子帧上接收到的所有业务数据进行检测，进而确定当前子帧是否存在目标检测信号，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，根据所述判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在所述目标检测信号，具体包括：当所述判断结果为是时，根据接收到的所述检测命令对所述所有业务数据进行检测确定所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道；当所述判断结果为否时，释放缓存的所述当前子帧上接收到的所有业务数据。
在该技术方案中，当判定在当前子帧之后的任一子帧上接收到检测命令时，对缓存的当前子帧上的所有业务数据进行检测，以确定在当前子帧上是否存在目标检测信号，进而确认基站是否已成功占用到空闲信道，具体地，如果检测到目标检测信号，说明基站已经占用到空闲信道，即可在非授权频段上执行业务调度；否则，释放缓存的当前子帧上接收的所有业务数据，如此，可以有效地减少终端的能量消耗，达到节能的目的。
在上述技术方案中，优选地，当所述判断结果为是时，在根据接收到的所述检测命令检测所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道之前，还包括：接收来自所述基站的物理层信令，以获取所述目标检测信号的配置信息并根据所述目标检测信号的配置信息检测所述当前子帧上是否存在所述目标检测信号。
在该技术方案中，通过预先接收来自基站的物理层信令，以获取目标检测信号的配置信息，进而根据目标检测信号的配置信息检测在所述至少一个目标符号上是否存在所述目标检测信号，用目标检测信号的配置信息作为检测依据，进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，所述目标检测信号包括：预留信号或导频信号；以及当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息；当所述目标检测信号为所述导频信号时，所述导频信号的配置信息包括：所述导频信号的 位置信息和资源占用信息。
在该技术方案中，目标检测信号包含但不限于：预留信号或导频信号，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会；且当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；当目标检测信号是导频信号时，其配置信息具体包括：导频信号的位置信息和资源占用信息，需要说明的是，如果导频信号的配置信息未发生变化，那么只需要在原有的位置上进行检测即可，如果引入了新的导频信号配置信息，那么需要预先知道新的导频信号配置信息，以确保检测的准确性，进而准确获知基站成功占用信道的位置，以有效地避免终端错过调度机会。
根据本发明的第二方面，提出了一种LTE系统在非授权频段工作时的业务检测系统，用于终端，包括：缓存单元，用于缓存所述非授权频段的当前子帧上接收到的所有业务数据；判断单元，用于判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；确定单元，用于根据判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在目标检测信号。
在该技术方案中，首先缓存非授权频段的当前子帧上接收到的所有业务数据，并根据在该当前子帧之后的任一子帧上是否接收到来自基站的检测命令的判断结果，确定是否对当前子帧上接收到的所有业务数据进行检测，进而确定当前子帧是否存在目标检测信号，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，所述确定单元具体包括：检测单元，用于当所述判断结果为是时，根据接收到的所述检测命令对所述所有业务数据进行检测确定所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道；释放单元，用于当所述判断结果为否时，释放缓存的所述当前子帧上接收到的所有业务数据。
在该技术方案中，当判定在当前子帧之后的任一子帧上接收到检测命令时，对缓存的当前子帧上的所有业务数据进行检测，以确定在当前子帧上是否存在目标检测信号，进而确认基站是否已成功占用到空闲信道，具体地，如果检测到目标检测信号，说明基站已经占用到空闲信道，即可在非授权频段上执行业务调度；否则，释放缓存的当前子帧上接收的所有业务数据，如此，可以有效地减少终端的能量消耗，达到节能的目的。
在上述技术方案中，优选地，还包括：接收单元，用于当所述判断结果为是时，在根据接收到的所述检测命令检测所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道之前，接收来自所述基站的物理层信令，以获取所述目标检测信号的配置信息并根据所述目标检测信号的配置信息检测所述当前子帧上是否存在所述目标检测信号。
在该技术方案中，通过预先接收来自基站的物理层信令，以获取目标检测信号的配置信息，进而根据目标检测信号的配置信息检测在所述至少一个目标符号上是否存在所述目标检测信号，用目标检测信号的配置信息作为检测依据，进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，所述目标检测信号包括：预留信号或导频信号；以及当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息；当所述目标检测信号为所述导频信号时，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息。
在该技术方案中，目标检测信号包含但不限于：预留信号或导频信号，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会；且当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；当目标检测信号是导频信号时，其配置信息具体包括：导频信号的位置信息 和资源占用信息，需要说明的是，如果导频信号的配置信息未发生变化，那么只需要在原有的位置上进行检测即可，如果引入了新的导频信号配置信息，那么需要预先知道新的导频信号配置信息，以确保检测的准确性，进而准确获知基站成功占用信道的位置，以有效地避免终端错过调度机会。
根据本发明的第三方面，提出了一种LTE系统在非授权频段工作时的业务检测方法，用于基站，包括：向终端发送检测命令，以使所述终端根据所述检测命令检测所述非授权频段的当前子帧上是否存在目标检测信号，以及向所述终端发送所述目标检测信号的配置信息，以使所述终端根据所述目标检测信号的配置信息检测所述非授权频段的当前子帧上是否存在所述目标检测信号；在所述终端检测到所述目标检测信号时，在所述非授权频段上执行业务调度。
在该技术方案中，通过向终端发送检测命令和目标检测信号的配置信息，以使终端在接收检测命令之后根据目标检测信号的配置信息检测在非授权频段的当前子帧上是否存在目标检测信号，并在终端检测到目标检测信号时，在非授权频段上执行业务调度，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，在授权频段或除所述非授权频段外的其他非授权频段上通过物理层信令的方式向所述终端发送所述检测命令；通过物理层信令的方式向所述终端发送所述目标检测信号的配置信息；以及所述目标检测信号包括：预留信号或导频信号；当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息。
在该技术方案中，在授权频段或除该非授权频段外的其他非授权频段上通过物理层信令的方式向终端发送检测命令，并通过物理层信令的方式向终端发送目标检测信号的配置信息，以供终端根据目标检测信号的配置信息进行检测，确保检测的准确性，如此，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
其中，目标检测信号包含但不限于：预留信号或导频信号，当目标检 测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；需要说明的是，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，还包括：当所述目标检测信号为所述导频信号时，监测所述导频信号的配置信息是否发生变化，其中，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息；以及在监测到发生变化时，将所述导频信号的变化后的配置信息发送至所述终端。
在该技术方案中，通过监测导频信号的配置信息是否发生变化，并在发生变化时，将最新的配置信息告知终端，以使终端根据变化后的导频信号的配置信息进行检测，保证检测的准确性，进而准确获知基站成功占用信道的位置，从而有效地避免终端错过调度机会，其中，导频信号的配置信息具体包括：导频信号的位置信息和资源占用信息。
在上述技术方案中，通过预定义或是信令配置的方式将所述当前子帧的之后的任一子帧的位置信息发送至所述终端，以使所述终端根据所述当前子帧的之后的所述任一子帧的位置信息判断是否接收到所述检测命令。
根据本发明的第四方面，提出了一种LTE系统在非授权频段工作时的业务检测系统，用于基站，包括：发送单元，用于向终端发送检测命令，以使所述终端根据所述检测命令检测所述非授权频段的当前子帧上是否存在目标检测信号，以及向所述终端发送所述目标检测信号的配置信息，以使所述终端根据所述目标检测信号的配置信息检测所述非授权频段的当前子帧上是否存在所述目标检测信号；调度单元，用于在所述终端检测到所述目标检测信号时，在所述非授权频段上执行业务调度。
在该技术方案中，通过向终端发送检测命令和目标检测信号的配置信息，以使终端在接收检测命令之后根据目标检测信号的配置信息检测在非授权频段的当前子帧上是否存在目标检测信号，并在终端检测到目标检测信号时，在非授权频段上执行业务调度，如此，可以有效地减少终端的能 量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，所述发送单元具体用于：在授权频段或除所述非授权频段外的其他非授权频段上通过物理层信令的方式向所述终端发送所述检测命令；通过物理层信令的方式向所述终端发送所述目标检测信号的配置信息；以及所述目标检测信号包括：预留信号或导频信号；当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息。
在该技术方案中，在授权频段或除该非授权频段外的其他非授权频段上通过物理层信令的方式向终端发送检测命令，并通过物理层信令的方式向终端发送目标检测信号的配置信息，以供终端根据目标检测信号的配置信息进行检测，确保检测的准确性，如此，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
其中，目标检测信号包含但不限于：预留信号或导频信号，当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；需要说明的是，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，还包括：监测单元，用于当所述目标检测信号为所述导频信号时，监测所述导频信号的配置信息是否发生变化，其中，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息；以及所述发送单元还用于：在监测到发生变化时，将所述导频信号的变化后的配置信息发送至所述终端。
在该技术方案中，通过监测导频信号的配置信息是否发生变化，并在发生变化时，将最新的配置信息告知终端，以使终端根据变化后的导频信号的配置信息进行检测，保证检测的准确性，进而准确获知基站成功占用信道的位置，从而有效地避免终端错过调度机会，其中，导频信号的配置信息具体包括：导频信号的位置信息和资源占用信息。
在上述技术方案中，通过预定义或是信令配置的方式将所述当前子帧的之后的任一子帧的位置信息发送至所述终端，以使所述终端根据所述当前子帧的之后的所述任一子帧的位置信息判断是否接收到所述检测命令。
根据本发明的第五方面，提出了一种终端，包括：如上述技术方案中任一项所述的用于终端的LTE系统在非授权频段工作时的业务检测系统，因此具有上述技术方案中任一项所述的用于终端的LTE系统在非授权频段工作时的业务检测系统的所有有益效果，这里不再赘述。
根据本发明的第六方面，提出了一种基站，包括：如上述技术方案中任一项所述的用于基站的LTE系统在非授权频段工作时的业务检测系统，因此具有上述技术方案中任一项所述的用于基站的LTE系统在非授权频段工作时的业务检测系统的所有有益效果，这里不再赘述。
通过本发明的技术方案，在使用了LBE的LBT机制时，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
附图说明
图1示出了相关技术中的一个实施例的在非授权频段的工作方式的示意图；
图2示出了根据本发明的一个实施例的LTE系统在非授权频段工作时的业务检测方法的流程示意图；
图3示出了根据本发明的一个实施例的LTE系统在非授权频段工作时的业务检测系统的框图；
图4示出了根据本发明的另一个实施例的LTE系统在非授权频段工作时的业务检测方法的流程示意图；
图5示出了根据本发明的另一个实施例的LTE系统在非授权频段工作时的业务检测系统的框图；
图6示出了根据本发明的一个实施例的终端的框图；
图7示出了根据本发明的一个实施例的基站的框图；
图8示出了根据本发明的一个实施例的根据基站指示进行检测的示意 图。
具体实施方式
为了可以更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不受下面公开的具体实施例的限制。
图2示出了根据本发明的一个实施例的LTE系统在非授权频段工作时的业务检测方法的流程示意图。
如图2所示，本发明的一个实施例的LTE系统在非授权频段工作时的业务检测方法，用于终端，包括：步骤202，缓存所述非授权频段的当前子帧上接收到的所有业务数据；步骤204，判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；步骤206，根据判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在目标检测信号。
在该技术方案中，首先缓存非授权频段的当前子帧上接收到的所有业务数据，并根据在该当前子帧之后的任一子帧上是否接收到来自基站的检测命令的判断结果，确定是否对当前子帧上接收到的所有业务数据进行检测，进而确定当前子帧是否存在目标检测信号，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，所述步骤206具体包括：当所述判断结果为是时，根据接收到的所述检测命令对所述所有业务数据进行检测确定所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道；当所述判断结果为否时，释放缓存的所述当前子帧上接收到的所有业务数据。
在该技术方案中，当判定在当前子帧之后的任一子帧上接收到检测命 令时，对缓存的当前子帧上的所有业务数据进行检测，以确定在当前子帧上是否存在目标检测信号，进而确认基站是否已成功占用到空闲信道，具体地，如果检测到目标检测信号，说明基站已经占用到空闲信道，即可在非授权频段上执行业务调度；否则，释放缓存的当前子帧上接收的所有业务数据，如此，可以有效地减少终端的能量消耗，达到节能的目的。
在上述技术方案中，优选地，当所述判断结果为是时，在根据接收到的所述检测命令检测所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道之前，还包括：接收来自所述基站的物理层信令，以获取所述目标检测信号的配置信息并根据所述目标检测信号的配置信息检测所述当前子帧上是否存在所述目标检测信号。
在该技术方案中，通过预先接收来自基站的物理层信令，以获取目标检测信号的配置信息，进而根据目标检测信号的配置信息检测在所述至少一个目标符号上是否存在所述目标检测信号，用目标检测信号的配置信息作为检测依据，进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，所述目标检测信号包括：预留信号或导频信号；以及当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息；当所述目标检测信号为所述导频信号时，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息。
在该技术方案中，目标检测信号包含但不限于：预留信号或导频信号，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会；且当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；当目标检测信号是导频信号时，其配置信息具体包括：导频信号的位置信息和资源占用信息，需要说明的是，如果导频信号的配置信息未发生变化，那么只需要在原有的位置上进行检测即可，如果引入了新的导频信号配置信 息，那么需要预先知道新的导频信号配置信息，以确保检测的准确性，进而准确获知基站成功占用信道的位置，以有效地避免终端错过调度机会。
图3示出了根据本发明的一个实施例的LTE系统在非授权频段工作时的业务检测系统的框图。
如图3所示，根据本发明的一个实施例的LTE系统在非授权频段工作时的业务检测系统300，用于终端，包括：缓存单元302，用于缓存所述非授权频段的当前子帧上接收到的所有业务数据；判断单元304，用于判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；确定单元306，用于根据判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在目标检测信号。
在该技术方案中，首先缓存非授权频段的当前子帧上接收到的所有业务数据，并根据在该当前子帧之后的任一子帧上是否接收到来自基站的检测命令的判断结果，确定是否对当前子帧上接收到的所有业务数据进行检测，进而确定当前子帧是否存在目标检测信号，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，所述确定单元306具体包括：检测单元3062，用于当所述判断结果为是时，根据接收到的所述检测命令对所述所有业务数据进行检测确定所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道；释放单元3064，用于当所述判断结果为否时，释放缓存的所述当前子帧上接收到的所有业务数据。
在该技术方案中，当判定在当前子帧之后的任一子帧上接收到检测命令时，对缓存的当前子帧上的所有业务数据进行检测，以确定在当前子帧上是否存在目标检测信号，进而确认基站是否已成功占用到空闲信道，具体地，如果检测到目标检测信号，说明基站已经占用到空闲信道，即可在非授权频段上执行业务调度；否则，释放缓存的当前子帧上接收的所有业务数据，如此，可以有效地减少终端的能量消耗，达到节能的目的。
在上述技术方案中，优选地，还包括：接收单元308，用于当所述判 断结果为是时，在根据接收到的所述检测命令检测所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道之前，接收来自所述基站的物理层信令，以获取所述目标检测信号的配置信息并根据所述目标检测信号的配置信息检测所述当前子帧上是否存在所述目标检测信号。
在该技术方案中，通过预先接收来自基站的物理层信令，以获取目标检测信号的配置信息，进而根据目标检测信号的配置信息检测在所述至少一个目标符号上是否存在所述目标检测信号，用目标检测信号的配置信息作为检测依据，进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，所述目标检测信号包括：预留信号或导频信号；以及当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息；当所述目标检测信号为所述导频信号时，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息。
在该技术方案中，目标检测信号包含但不限于：预留信号或导频信号，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会；且当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；当目标检测信号是导频信号时，其配置信息具体包括：导频信号的位置信息和资源占用信息，需要说明的是，如果导频信号的配置信息未发生变化，那么只需要在原有的位置上进行检测即可，如果引入了新的导频信号配置信息，那么需要预先知道新的导频信号配置信息，以确保检测的准确性，进而准确获知基站成功占用信道的位置，以有效地避免终端错过调度机会。
图4示出了根据本发明的另一个实施例的LTE系统在非授权频段工作时的业务检测方法的流程示意图。
如图4所示，根据本发明的另一个实施例的LTE系统在非授权频段 工作时的业务检测方法，用于基站，包括：步骤402，向终端发送检测命令，以使所述终端根据所述检测命令检测所述非授权频段的当前子帧上是否存在目标检测信号，以及向所述终端发送所述目标检测信号的配置信息，以使所述终端根据所述目标检测信号的配置信息检测所述非授权频段的当前子帧上是否存在所述目标检测信号；步骤404，在所述终端检测到所述目标检测信号时，在所述非授权频段上执行业务调度。
在该技术方案中，通过向终端发送检测命令和目标检测信号的配置信息，以使终端在接收检测命令之后根据目标检测信号的配置信息检测在非授权频段的当前子帧上是否存在目标检测信号，并在终端检测到目标检测信号时，在非授权频段上执行业务调度，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，在授权频段或除所述非授权频段外的其他非授权频段上通过物理层信令的方式向所述终端发送所述检测命令；通过物理层信令的方式向所述终端发送所述目标检测信号的配置信息；以及所述目标检测信号包括：预留信号或导频信号；当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息。
在该技术方案中，在授权频段或除该非授权频段外的其他非授权频段上通过物理层信令的方式向终端发送检测命令，并通过物理层信令的方式向终端发送目标检测信号的配置信息，以供终端根据目标检测信号的配置信息进行检测，确保检测的准确性，如此，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
其中，目标检测信号包含但不限于：预留信号或导频信号，当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；需要说明的是，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，还包括：当所述目标检测信号为所述导频信号时，监测所述导频信号的配置信息是否发生变化，其中，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息；以及在监测到发生变化时，将所述导频信号的变化后的配置信息发送至所述终端。
在该技术方案中，通过监测导频信号的配置信息是否发生变化，并在发生变化时，将最新的配置信息告知终端，以使终端根据变化后的导频信号的配置信息进行检测，保证检测的准确性，进而准确获知基站成功占用信道的位置，从而有效地避免终端错过调度机会，其中，导频信号的配置信息具体包括：导频信号的位置信息和资源占用信息。
在上述技术方案中，通过预定义或是信令配置的方式将所述当前子帧的之后的任一子帧的位置信息发送至所述终端，以使所述终端根据所述当前子帧的之后的所述任一子帧的位置信息判断是否接收到所述检测命令。
图5示出了根据本发明的另一个实施例的LTE系统在非授权频段工作时的业务检测系统的框图。
如图5所示，根据本发明的一个实施例的LTE系统在非授权频段工作时的业务检测系统500，用于基站，包括：发送单元502，用于向终端发送检测命令，以使所述终端根据所述检测命令检测所述非授权频段的当前子帧上是否存在目标检测信号，以及向所述终端发送所述目标检测信号的配置信息，以使所述终端根据所述目标检测信号的配置信息检测所述非授权频段的当前子帧上是否存在所述目标检测信号；调度单元504，用于在所述终端检测到所述目标检测信号时，在所述非授权频段上执行业务调度。
在该技术方案中，通过向终端发送检测命令和目标检测信号的配置信息，以使终端在接收检测命令之后根据目标检测信号的配置信息检测在非授权频段的当前子帧上是否存在目标检测信号，并在终端检测到目标检测信号时，在非授权频段上执行业务调度，如此，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
在上述技术方案中，优选地，所述发送单元502具体用于：在授权频段或除所述非授权频段外的其他非授权频段上通过物理层信令的方式向所述终端发送所述检测命令；通过物理层信令的方式向所述终端发送所述目标检测信号的配置信息；以及所述目标检测信号包括：预留信号或导频信号；当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息。
在该技术方案中，在授权频段或除该非授权频段外的其他非授权频段上通过物理层信令的方式向终端发送检测命令，并通过物理层信令的方式向终端发送目标检测信号的配置信息，以供终端根据目标检测信号的配置信息进行检测，确保检测的准确性，如此，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
其中，目标检测信号包含但不限于：预留信号或导频信号，当目标检测信号是预留信号时，其配置信息具体包括：预留信号的信号序列和资源占用信息(比如占用的频域特征和时域特征)；需要说明的是，本领域技术人员应该理解为，只要适用于解决应用于非授权频段的唤醒终端进行检测的均可作为本方案的目标检测信号，通过检测信号的多样性，可以进一步提高在非授权频段上的业务检测的准确性，避免终端错过调度机会。
在上述技术方案中，优选地，还包括：监测单元506，用于当所述目标检测信号为所述导频信号时，监测所述导频信号的配置信息是否发生变化，其中，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息；以及所述发送单元还用于：在监测到发生变化时，将所述导频信号的变化后的配置信息发送至所述终端。
在该技术方案中，通过监测导频信号的配置信息是否发生变化，并在发生变化时，将最新的配置信息告知终端，以使终端根据变化后的导频信号的配置信息进行检测，保证检测的准确性，进而准确获知基站成功占用信道的位置，从而有效地避免终端错过调度机会，其中，导频信号的配置信息具体包括：导频信号的位置信息和资源占用信息。
在上述技术方案中，通过预定义或是信令配置的方式将所述当前子帧的之后的任一子帧的位置信息发送至所述终端，以使所述终端根据所述当 前子帧的之后的所述任一子帧的位置信息判断是否接收到所述检测命令。
图6示出了根据本发明的一个实施例的终端的框图。
如图6所示，本发明的一个实施例的终端600，包括：如上述技术方案中任一项所述的用于终端600的LTE系统在非授权频段工作时的业务检测系统300，因此具有上述技术方案中任一项所述的用于终端600的LTE系统在非授权频段工作时的业务检测系统300的所有有益效果，这里不再赘述。
图7示出了根据本发明的一个实施例的基站的框图。
如图7所示，本发明的一个实施例的基站700，包括：如上述技术方案中任一项所述的用于基站700的LTE系统在非授权频段工作时的业务检测系统500，因此具有上述技术方案中任一项所述的用于基站700的LTE系统在非授权频段工作时的业务检测系统500的所有有益效果，这里不再赘述。
图8示出了根据本发明的一个实施例的根据基站指示进行检测的示意图。
在该技术方案中，终端在每个子帧位置上将会首先buffer(缓存)该子帧位置上的所有业务数据，然后根据基站的指示去确定是否进行检测(即是否接收到检测命令)。如图8所示，终端在子帧N(当前子帧)上缓存整个子帧上接收到的所有业务数据，但是终端在子帧N上并不进行检测。终端会根据eNB(Evolved Node B，演进型基站)在子帧N+1(当前子帧的之后的任一子帧)上的指示确定是否执行子帧N上的检测。若eNB在子帧N+1上指示终端进行子帧N上的检测，那么终端将会执行子帧N上的检测。需要注意的是，终端执行子帧N上的检测可能包括同步，数据解调等功能。eNB在子帧N+1上的通知可以通过物理层信令来实现。物理层信令中可能包含子帧N上的导频信号或是预留信号(目标检测信号)的配置信息。如果eNB在子帧N+1上指示终端不需要去做子帧N上的检测，那么终端将会清空buffer的子帧N上的接收到的数据。
另外需要注意的是，eNB在子帧N+1上的发送的指示信息可能是在授权频段或是另外一个非授权频段上承载。如图8所示的方法仅仅是一个示例， 基于同样的原理，基站也可以在第N+M(当前子帧的之后的任一子帧)个帧上指示终端在子帧N上是否需要检测以及进行检测的配置。M是一个预先定义的值或是一个信令配置下来的值；另外指示检测的信令如果是物理层信令的话，那么需要指示终端该物理层信令的目的，这可以通过多种方法来实现，比如，一种方法是通过物理层信令的扰码来实现，即可以定义一个序列池，该序列池中的序列通过与物理层的信令加扰，这样的话终端可以通过扰码信息来获知指示的是让终端在子帧N上进行检测。另外，扰码也可能会携带具体的检测配置的信息；另一种方法是在DCI信令中指示，可以通过定义新的DCI format或是通过复用原有的DCI format来进行指示。
以上结合附图详细说明了本发明的技术方案，在使用了LBE的LBT机制时，可以有效地减少终端的能量消耗，在达到节能的目的的同时可以准确的获知基站成功占用信道的位置，从而有效地避免终端错过调度机会。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (16)

  1. 一种LTE系统在非授权频段工作时的业务检测方法，用于终端，其特征在于，包括：
    缓存所述非授权频段的当前子帧上接收到的所有业务数据；
    判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；
    根据判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在目标检测信号。
  2. 根据权利要求1所述的LTE系统在非授权频段工作时的业务检测方法，其特征在于，根据所述判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在所述目标检测信号，具体包括：
    当所述判断结果为是时，根据接收到的所述检测命令对所述所有业务数据进行检测确定所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道；
    当所述判断结果为否时，释放缓存的所述当前子帧上接收到的所有业务数据。
  3. 根据权利要求2所述的LTE系统在非授权频段工作时的业务检测方法，其特征在于，当所述判断结果为是时，在根据接收到的所述检测命令检测所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道之前，还包括：
    接收来自所述基站的物理层信令，以获取所述目标检测信号的配置信息并根据所述目标检测信号的配置信息检测所述当前子帧上是否存在所述目标检测信号。
  4. 根据权利要求1至3中任一项所述的LTE系统在非授权频段工作时的业务检测方法，其特征在于，所述目标检测信号包括：预留信号或导频信号；以及
    当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息；
    当所述目标检测信号为所述导频信号时，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息。
  5. 一种LTE系统在非授权频段工作时的业务检测系统，用于终端，其特征在于，包括：
    缓存单元，用于缓存所述非授权频段的当前子帧上接收到的所有业务数据；
    判断单元，用于判断在所述当前子帧的之后的任一子帧上是否接收到来自为所述终端提供服务的基站的检测命令；
    确定单元，用于根据判断结果确定是否对所述所有业务数据进行检测，以确定所述当前子帧上是否存在目标检测信号。
  6. 根据权利要求5所述的LTE系统在非授权频段工作时的业务检测系统，其特征在于，所述确定单元具体包括：
    检测单元，用于当所述判断结果为是时，根据接收到的所述检测命令对所述所有业务数据进行检测确定所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道；
    释放单元，用于当所述判断结果为否时，释放缓存的所述当前子帧上接收到的所有业务数据。
  7. 根据权利要求6所述的LTE系统在非授权频段工作时的业务检测系统，其特征在于，还包括：
    接收单元，用于当所述判断结果为是时，在根据接收到的所述检测命令检测所述当前子帧上是否存在所述目标检测信号，以确认所述基站是否已占用到空闲信道之前，
    接收来自所述基站的物理层信令，以获取所述目标检测信号的配置信息并根据所述目标检测信号的配置信息检测所述当前子帧上是否存在所述目标检测信号。
  8. 根据权利要求5至7中任一项所述的LTE系统在非授权频段工作时的业务检测系统，其特征在于，所述目标检测信号包括：预留信号或导频信号；以及
    当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息；
    当所述目标检测信号为所述导频信号时，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息。
  9. 一种LTE系统在非授权频段工作时的业务检测方法，用于基站，其特征在于，包括：
    向终端发送检测命令，以使所述终端根据所述检测命令检测所述非授权频段的当前子帧上是否存在目标检测信号，以及
    向所述终端发送所述目标检测信号的配置信息，以使所述终端根据所述目标检测信号的配置信息检测所述非授权频段的当前子帧上是否存在所述目标检测信号；
    在所述终端检测到所述目标检测信号时，在所述非授权频段上执行业务调度。
  10. 根据权利要求9所述的LTE系统在非授权频段工作时的业务检测方法，其特征在于，
    在授权频段或除所述非授权频段外的其他非授权频段上通过物理层信令的方式向所述终端发送所述检测命令；
    通过物理层信令的方式向所述终端发送所述目标检测信号的配置信息；以及
    所述目标检测信号包括：预留信号或导频信号；
    当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息。
  11. 根据权利要求10所述的LTE系统在非授权频段工作时的业务检测方法，其特征在于，还包括：
    当所述目标检测信号为所述导频信号时，监测所述导频信号的配置信息是否发生变化，其中，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息；以及
    在监测到发生变化时，将所述导频信号的变化后的配置信息发送至所述终端。
  12. 一种LTE系统在非授权频段工作时的业务检测系统，用于基站，其特征在于，包括：
    发送单元，用于向终端发送检测命令，以使所述终端根据所述检测命 令检测所述非授权频段的当前子帧上是否存在目标检测信号，以及
    向所述终端发送所述目标检测信号的配置信息，以使所述终端根据所述目标检测信号的配置信息检测所述非授权频段的当前子帧上是否存在所述目标检测信号；
    调度单元，用于在所述终端检测到所述目标检测信号时，在所述非授权频段上执行业务调度。
  13. 根据权利要求12所述的LTE系统在非授权频段工作时的业务检测系统，其特征在于，所述发送单元具体用于：
    在授权频段或除所述非授权频段外的其他非授权频段上通过物理层信令的方式向所述终端发送所述检测命令；
    通过物理层信令的方式向所述终端发送所述目标检测信号的配置信息；以及
    所述目标检测信号包括：预留信号或导频信号；
    当所述目标检测信号为所述预留信号时，所述预留信号的配置信息包括：所述预留信号的信号序列和资源占用信息。
  14. 根据权利要求13所述的LTE系统在非授权频段工作时的业务检测系统，其特征在于，还包括：
    监测单元，用于当所述目标检测信号为所述导频信号时，监测所述导频信号的配置信息是否发生变化，其中，所述导频信号的配置信息包括：所述导频信号的位置信息和资源占用信息；以及
    所述发送单元还用于：在监测到发生变化时，将所述导频信号的变化后的配置信息发送至所述终端。
  15. 一种终端，其特征在于，包括：如权利要求5至8中任一项所述的LTE系统在非授权频段工作时的业务检测系统。
  16. 一种基站，其特征在于，包括：如权利要求12至14中任一项所述的LTE系统在非授权频段工作时的业务检测系统。
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