WO2017000414A1 - 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
WO2017000414A1
WO2017000414A1 PCT/CN2015/091370 CN2015091370W WO2017000414A1 WO 2017000414 A1 WO2017000414 A1 WO 2017000414A1 CN 2015091370 W CN2015091370 W CN 2015091370W WO 2017000414 A1 WO2017000414 A1 WO 2017000414A1
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Prior art keywords
signal
target detection
terminal
detection signal
frequency band
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PCT/CN2015/091370
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English (en)
French (fr)
Inventor
朱亚军
李明菊
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017000414A1 publication Critical patent/WO2017000414A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • 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 method for detecting a service when an LTE system operates in an unlicensed frequency band, and is configured to: determine whether a source is received in a current subframe of the unlicensed band.
  • the terminal provides a wake-up command of the serving base station; when the determination result is yes, detecting whether there is a target detection signal on the current subframe and/or the subframe subsequent to the current subframe to confirm whether the base station is The idle channel is occupied; when the target detection signal is detected, it is confirmed that the base station has occupied the idle channel, so that the base station performs service scheduling on the unlicensed frequency band.
  • the wake-up command of the serving base station when it is determined that the current subframe in the unlicensed band is received as the end When the wake-up command of the serving base station is provided, detecting whether there is a target detection signal on the current subframe and/or the subframe after the current subframe, that is, single or multiple subframes after the current subframe and/or the current subframe The detection can be performed on both the continuous detection and the discontinuous detection to confirm whether the base station has occupied the idle channel. If the target detection signal is detected, the base station has occupied the idle channel, and the unlicensed frequency band can be used. The service scheduling is performed. In this way, 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.
  • the wakeup command includes configuration information of the target detection signal to detect whether the target detection signal exists on the current subframe according to configuration information of the target detection signal.
  • the configuration information of the target detection signal is included in the wake-up command, and further, according to the configuration information of the target detection signal, whether the target detection signal exists in the current subframe is detected, and the configuration information of the target detection signal is used as the detection basis.
  • the accuracy of the service detection on the unlicensed frequency band is further improved, and the terminal is prevented from missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • 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.
  • 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.
  • the configuration information 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 includes: location information of the pilot signal and resource occupation information. It should be noted that if the configuration information of the pilot signal is not sent. If there is a change, then it only needs to be detected at the original position. If new pilot signal configuration information is introduced, 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 base station. The location of the channel is successfully occupied to effectively avoid the terminal missing the scheduling opportunity.
  • a service detection system for an LTE system operating in an unlicensed frequency band comprising: a determining unit, configured to determine whether to receive in a current subframe of the unlicensed frequency band a wake-up command from a base station serving the terminal; a detecting unit, configured to detect whether there is a target detection on the current subframe and/or a subframe subsequent to the current subframe when the determination result is yes a signal, to confirm whether the base station has occupied an idle channel, and an acknowledgment unit, configured to: when detecting the target detection signal, confirm that the base station has occupied an idle channel, so that the base station is in the unlicensed frequency band Perform business scheduling on it.
  • the detection signal that is, the detection may be performed on one or more subframes after the current subframe and/or the current subframe, may be performed continuously or may be detected discontinuously to confirm whether the base station has occupied the idle channel, if The target detection signal is detected, indicating that the base station has occupied the idle channel, and the service scheduling can be performed on the unlicensed frequency band. Therefore, the energy consumption of the terminal can be effectively reduced, and the base station can be accurately occupied while achieving the purpose of energy saving. The location of the channel, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the wakeup command includes configuration information of the target detection signal to detect whether the target detection signal exists on the current subframe according to configuration information of the target detection signal.
  • the configuration information of the target detection signal is included in the wake-up command, and further, according to the configuration information of the target detection signal, whether the target detection signal exists in the current subframe is detected, and the configuration information of the target detection signal is used as the detection basis.
  • the accuracy of the service detection on the unlicensed frequency band is further improved, and the terminal is prevented from missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • the target detection signal includes but is not limited to: a reserved signal or a pilot signal. It should be understood by those skilled in the art that as long as it is suitable for solving the detection of the wake-up terminal applied to the unlicensed frequency band, it can be used as the target detection signal of the scheme, and the diversity of the detection signal can further improve the unlicensed frequency band. The accuracy of the business detection prevents the terminal from missing the scheduling opportunity.
  • 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.
  • the configuration information 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.
  • a service detection method for an LTE system when operating in an unlicensed frequency band includes: before performing channel detection on a current subframe, in the current subframe or the Sending a wake-up command to the terminal on the previous subframe of the current subframe, so that the terminal is in the current subframe of the unlicensed band and/or the subframe after the current subframe according to the wake-up command. Detecting whether there is a target detection signal; when the terminal detects the target detection signal, performing service scheduling on the unlicensed frequency band.
  • a wake-up command is sent to the terminal in the current subframe or the previous subframe of the current subframe, and the terminal is woken up in advance, so that the terminal is unauthorized according to the wake-up command.
  • the target detection signal exists on the current subframe of the frequency band and/or the subframe after the current subframe, and when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band, so that the terminal can be effectively reduced.
  • Energy 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 wake-up command is sent to the terminal by means of physical layer signaling on a licensed frequency band, wherein the wake-up command includes configuration information of the target detection signal;
  • 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 wake-up command including the configuration information of the target detection signal is sent to the terminal by means of physical layer signaling on the licensed frequency band, so that the terminal performs detection according to the configuration information of the target detection signal to ensure the accuracy of the detection.
  • the location of the channel successfully occupied by the base station can be accurately known, 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 the subframe after 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 subframe after the current subframe.
  • the location information detects whether the target detection signal is present.
  • a service detection system for an LTE system operating in an unlicensed frequency band for a base station, including: a sending unit, configured to perform channel detection on a current subframe before the current Sending a wake-up command to the terminal in a subframe or a previous subframe of the current subframe, so that the terminal is in the current subframe and/or the current subframe in the unlicensed frequency band according to the wake-up command.
  • a target detection signal is detected on the subsequent subframe; and a scheduling unit is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.
  • a wake-up command is sent to the terminal in the current subframe or the previous subframe of the current subframe, and the terminal is woken up in advance, so that the terminal is unauthorized according to the wake-up command.
  • the target detection signal exists on the current subframe of the frequency band and/or the subframe after the current subframe, and when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band, so that the terminal can be effectively reduced.
  • Energy 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 wake-up command to the terminal on a licensed frequency band, where the wake-up command includes the target detection
  • the configuration information of the signal 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: the reserved signal Signal sequence and resource occupancy information.
  • the wake-up command including the configuration information of the target detection signal is sent to the terminal by means of physical layer signaling on the licensed frequency band, so that the terminal performs detection according to the configuration information of the target detection signal to ensure the accuracy of the detection.
  • the location of the channel successfully occupied by the base station can be accurately known, 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 the subframe after 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 subframe after the current subframe.
  • the location information detects whether the target detection signal is present.
  • 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 is a diagram showing a detection process of a pre-awake terminal 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 in a terminal, and includes: Step 202: Determine whether a current subframe in the unlicensed band is received. a wake-up command from a base station serving the terminal; in step 204, when the determination result is yes, detecting whether there is a target detection signal on the current subframe and/or a subframe subsequent to the current subframe, Determining whether the base station has occupied the idle channel; and in step 206, when detecting the target detection signal, confirming that the base station has occupied the idle channel, so that the base station performs service scheduling on the unlicensed frequency band.
  • the detection signal that is, the detection may be performed on one or more subframes after the current subframe and/or the current subframe, may be performed continuously or may be detected discontinuously to confirm whether the base station has occupied the idle channel, if The target detection signal is detected, indicating that the base station has occupied the idle channel, and the service scheduling can be performed on the unlicensed frequency band. Therefore, the energy consumption of the terminal can be effectively reduced, and the base station can be accurately occupied while achieving the purpose of energy saving. The location of the channel, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the wakeup command includes configuration information of the target detection signal to detect whether the target detection signal exists on the current subframe according to configuration information of the target detection signal.
  • the configuration information of the target detection signal is included in the wake-up command, and further, according to the configuration information of the target detection signal, whether the target detection signal exists in the current subframe is detected, and the configuration information of the target detection signal is used as the detection basis.
  • the accuracy of the service detection on the unlicensed frequency band is further improved, and the terminal is prevented from missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • 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.
  • 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.
  • the configuration information 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.
  • 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 of the embodiment of the present invention operates in an unlicensed frequency band is used for the terminal, and includes: a determining unit 302, configured to determine a current subframe in the unlicensed frequency band. Whether a wake-up command from a base station serving the terminal is received, and a detecting unit 304, configured to detect, on the subframe after the current subframe and/or the current subframe, when the determination result is yes Whether there is a target detection signal to confirm whether the base station has occupied the idle channel; the confirming unit 306 is configured to confirm that the base station has occupied the idle channel when the target detection signal is detected, so that the base station is in the Performing service scheduling on the unlicensed frequency band.
  • the detection signal that is, the detection may be performed on one or more subframes after the current subframe and/or the current subframe, may be performed continuously or may be detected discontinuously to confirm whether the base station has occupied the idle channel, if The target detection signal is detected, indicating that the base station has occupied the idle channel, and the service scheduling can be performed on the unlicensed frequency band. Therefore, the energy consumption of the terminal can be effectively reduced, and the base station can be accurately occupied while achieving the purpose of energy saving. The location of the channel, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the wakeup command includes configuration information of the target detection signal to detect whether the target detection signal exists on the current subframe according to configuration information of the target detection signal.
  • the configuration information of the target detection signal is included in the wake-up command, and further, according to the configuration information of the target detection signal, whether the target detection signal exists in the current subframe is detected, and the configuration information of the target detection signal is used as the detection basis. Further increase in unlicensed bands The accuracy of the service detection on the terminal prevents the terminal from missing the scheduling opportunity.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • 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.
  • 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.
  • the configuration information 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.
  • 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.
  • a service detection method for an LTE system in an unlicensed band is used in a base station, including: Step 402: Before performing channel detection on a current subframe, in the current Sending a wake-up command to the terminal in a subframe or a previous subframe of the current subframe, so that the terminal is in the current subframe and/or the current subframe in the unlicensed frequency band according to the wake-up command.
  • a target detection signal is detected on the subsequent subframe; and in step 404, when the terminal detects the target detection signal, performing service scheduling on the unlicensed frequency band.
  • a wake-up command is sent to the terminal in the current subframe or the previous subframe of the current subframe, and the terminal is woken up in advance, so that the terminal is unauthorized according to the wake-up command.
  • the target detection signal exists on the current subframe of the frequency band and/or the subframe after the current subframe, and when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band, so that the terminal can be effectively reduced.
  • Energy 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 wake-up command is sent to the terminal by means of physical layer signaling on a licensed frequency band, wherein the wake-up command includes configuration information of the target detection signal;
  • 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 wake-up command including the configuration information of the target detection signal is sent to the terminal by means of physical layer signaling on the licensed frequency band, so that the terminal performs detection according to the configuration information of the target detection signal to ensure the accuracy of the detection.
  • the location of the channel successfully occupied by the base station can be accurately known, 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 terminal 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.
  • the location information of the subframe after 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 subframe after the current subframe.
  • the location information detects whether the target detection signal is present.
  • 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.
  • 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 perform channel detection on a current subframe. Sending a wake-up command to the terminal in the current subframe or a previous subframe of the current subframe, so that the terminal is in the current subframe and/or in the unlicensed frequency band according to the wake-up command. Whether the target detection signal exists on the subframe after the current subframe is detected; the scheduling unit 504 is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.
  • a wake-up command is sent to the terminal in the current subframe or the previous subframe of the current subframe, and the terminal is woken up in advance, so that the terminal is unauthorized according to the wake-up command.
  • the target detection signal exists on the current subframe of the frequency band and/or the subframe after the current subframe, and when the terminal detects the target detection signal, performs service scheduling on the unlicensed frequency band, so that the terminal can be effectively reduced.
  • Energy 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 502 is specifically configured to: send, by using physical layer signaling, the wake-up command to the terminal on a licensed frequency band, where the wake-up command includes the target The configuration information of the 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 configuration information of the reserved signal includes: the reservation The signal sequence and resource occupancy information of the signal.
  • the packet is sent to the terminal by means of physical layer signaling on the licensed frequency band.
  • the wake-up command includes the configuration information of the target detection signal, so that the terminal performs detection according to the configuration information of the target detection signal to ensure the accuracy of the detection.
  • the energy-storing purpose can be accurately obtained, and the location of the successfully occupied channel of the base station can be accurately obtained. 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 502 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 502 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 the subframe after 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 subframe after the current subframe.
  • the location information detects whether the target detection signal is present.
  • 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 is a diagram showing a detection process of a pre-awake terminal according to an embodiment of the present invention.
  • the eNB (Evolved Node B) will wake up the terminal in advance for continuous detection before performing initial (Clarity Channel Assessment).
  • the serving base station finds that the traffic load on the licensed spectrum (authorized frequency band) is large, it needs to offload a certain service to the unlicensed spectrum (ie, the unlicensed frequency band), then the base station The terminal will be awake on the licensed spectrum by physical layer signaling on the subframe N (ie, the current subframe) or the subframe N-1 (ie, the previous subframe of the current subframe), and the terminal will be detected according to the eNB.
  • the indication ie, the wake-up command
  • the wake-up command of the eNB may further include a location of the terminal detecting pilot signal or the reserved signal or configuration information (ie, configuration information of the target detection signal).

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：判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。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：判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。
在该技术方案中，当判定在非授权频段的当前子帧上接收到来自为终 端提供服务的基站的唤醒命令时，在当前子帧和/或当前子帧之后的子帧上检测是否存在目标检测信号，即在当前子帧和/或当前子帧之后的单个或多个子帧上均可以进行检测，可以进行连续检测也可以不连续地进行检测，以确认基站是否已占用到空闲信道，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，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，所述唤醒命令中包括所述目标检测信号的配置信息，以根据所述目标检测信号的配置信息检测在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，在唤醒命令中包括目标检测信号的配置信息，进而可以根据目标检测信号的配置信息检测在当前子帧上是否存在目标检测信号，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。
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。
在上述技术方案中，优选地，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，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：判断单元，用于判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；检测单元，用于在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；确认单元，用于在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。
在该技术方案中，当判定在非授权频段的当前子帧上接收到来自为终端提供服务的基站的唤醒命令时，在当前子帧和/或当前子帧之后的子帧上检测是否存在目标检测信号，即在当前子帧和/或当前子帧之后的单个或多个子帧上均可以进行检测，可以进行连续检测也可以不连续地进行检测，以确认基站是否已占用到空闲信道，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，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，所述唤醒命令中包括所述目标检测信号的配置信息，以根据所述目标检测信号的配置信息检测在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，在唤醒命令中包括目标检测信号的配置信息，进而可以根据目标检测信号的配置信息检测在当前子帧上是否存在目标检测信号，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。
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。
在上述技术方案中，优选地，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，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：在当前子帧上进行信道检测之前，在所述当前子帧或所述当前子帧的前一个子帧上向终端发送唤醒命令，以使所述终端根据所述唤醒命令在所述非授权频段的所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号；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，通过在当前子帧上进行信道检测之前，在当前子帧或当前子帧的前一个子帧上向终端发送唤醒命令，预先唤醒终端，以使终端根据唤醒命令在非授权频段的当前子帧和/或当前子帧之后的子帧上检测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，在授权频段上通过物理层信令的方式向所述终端发送所述唤醒命令，其中，所述唤醒命令中包括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，在授权频段上通过物理层信令的方式向终端发送包括目标检测信号的配置信息的唤醒命令，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之后的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之后的子帧的位置信息检测是否存在所述目标检测信号。
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，用于在当前子帧上进行信道检测之前，在所述当前子帧或所述当前子帧的前一个子帧上向终端发送唤醒命令，以使所述终端根据所述唤醒命令在所述非授权频段的所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号；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，通过在当前子帧上进行信道检测之前，在当前子帧或当前子帧的前一个子帧上向终端发送唤醒命令，预先唤醒终端，以使终端根据唤醒命令在非授权频段的当前子帧和/或当前子帧之后的子帧上检测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：在授权频段上通过物理层信令的方式向所述终端发送所述唤醒命令，其中，所述唤醒命令中包括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，在授权频段上通过物理层信令的方式向终端发送包括目标检测信号的配置信息的唤醒命令，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之后的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之后的子帧的位置信息检测是否存在所述目标检测信号。
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预先唤醒终端的检测过程的示意图。
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，判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；步骤204，在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；步骤206，在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。
在该技术方案中，当判定在非授权频段的当前子帧上接收到来自为终端提供服务的基站的唤醒命令时，在当前子帧和/或当前子帧之后的子帧上检测是否存在目标检测信号，即在当前子帧和/或当前子帧之后的单个或多个子帧上均可以进行检测，可以进行连续检测也可以不连续地进行检测，以确认基站是否已占用到空闲信道，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，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，所述唤醒命令中包括所述目标检测信号的配置信息，以根据所述目标检测信号的配置信息检测在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，在唤醒命令中包括目标检测信号的配置信息，进而可以根据目标检测信号的配置信息检测在当前子帧上是否存在目标检测信号，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。
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。
在上述技术方案中，优选地，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，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，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：判断单元302，用于判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；检测单元304，用于在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；确认单元306，用于在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。
在该技术方案中，当判定在非授权频段的当前子帧上接收到来自为终端提供服务的基站的唤醒命令时，在当前子帧和/或当前子帧之后的子帧上检测是否存在目标检测信号，即在当前子帧和/或当前子帧之后的单个或多个子帧上均可以进行检测，可以进行连续检测也可以不连续地进行检测，以确认基站是否已占用到空闲信道，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，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，所述唤醒命令中包括所述目标检测信号的配置信息，以根据所述目标检测信号的配置信息检测在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，在唤醒命令中包括目标检测信号的配置信息，进而可以根据目标检测信号的配置信息检测在当前子帧上是否存在目标检测信号，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。
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。
在上述技术方案中，优选地，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，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，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，在当前子帧上进行信道检测之前，在所述当前子帧或所述当前子帧的前一个子帧上向终端发送唤醒命令，以使所述终端根据所述唤醒命令在所述非授权频段的所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号；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，通过在当前子帧上进行信道检测之前，在当前子帧或当前子帧的前一个子帧上向终端发送唤醒命令，预先唤醒终端，以使终端根据唤醒命令在非授权频段的当前子帧和/或当前子帧之后的子帧上检测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，在授权频段上通过物理层信令的方式向所述终端发送所述唤醒命令，其中，所述唤醒命令中包括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，在授权频段上通过物理层信令的方式向终端发送包括目标检测信号的配置信息的唤醒命令，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之后的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之后的子帧的位置信息检测是否存在所述目标检测信号。
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，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500，用于基站，包括：发送单元502，用于在当前子帧上进行信道检测之前，在所述当前子帧或所述当前子帧的前一个子帧上向终端发送唤醒命令，以使所述终端根据所述唤醒命令在所述非授权频段的所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号；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，通过在当前子帧上进行信道检测之前，在当前子帧或当前子帧的前一个子帧上向终端发送唤醒命令，预先唤醒终端，以使终端根据唤醒命令在非授权频段的当前子帧和/或当前子帧之后的子帧上检测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：在授权频段上通过物理层信令的方式向所述终端发送所述唤醒命令，其中，所述唤醒命令中包括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，在授权频段上通过物理层信令的方式向终端发送包 括目标检测信号的配置信息的唤醒命令，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502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之后的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之后的子帧的位置信息检测是否存在所述目标检测信号。
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预先唤醒终端的检测过程的示意图。
在该技术方案中，eNB(Evolved Node B，演进型基站)将会在做initial(初始的)CCA(Clear Channel Assessment，空闲信道检测)之前，预先唤醒终端，以进行持续的检测。如图8所示，当服务基站发现在授权频谱(授权频段)上的业务负载较大的情况下，需要offload(卸下)一定的业务到非授权频谱(即非授权频段)上，那么基站将会在子帧N(即当前子帧)或是子帧N-1(即当前子帧的前一个子帧)上通过物理层信令在授权频谱上唤醒终端进行检测，终端将会根据eNB的指示(即唤醒命令)进行持续的检测，直到发现基站成功占用了信道。eNB的唤醒命令中可能还包含了终端检测导频信号或是预留信号的位置或是配置信息(即目标检测信号的配置信息)。
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：
    判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；
    在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；
    在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。
  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，所述唤醒命令中包括所述目标检测信号的配置信息，以根据所述目标检测信号的配置信息检测在所述当前子帧上是否存在所述目标检测信号。
  3. 根据权利要求1或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，所述目标检测信号包括：预留信号或导频信号。
  4. 根据权利要求3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：
    判断单元，用于判断在所述非授权频段的当前子帧上是否接收到来自为所述终端提供服务的基站的唤醒命令；
    检测单元，用于在判断结果为是时，在所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号，以确认所述基站是否已占用到空闲信道；
    确认单元，用于在检测到所述目标检测信号时，确认所述基站已占用到空闲信道，以使所述基站在所述非授权频段上执行业务调度。
  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，所述唤醒命令中包括所述目标检测信号的配置信息，以根据所述目标检测信号的配置信息检测在所述当前子帧上是否存在所述目标检测信号。
  7. 根据权利要求5或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，所述目标检测信号包括：预留信号或导频信号。
  8. 根据权利要求7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，
    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：
    在当前子帧上进行信道检测之前，在所述当前子帧或所述当前子帧的前一个子帧上向终端发送唤醒命令，以使所述终端根据所述唤醒命令在所述非授权频段的所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号；
    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，
    在授权频段上通过物理层信令的方式向所述终端发送所述唤醒命令，其中，所述唤醒命令中包括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，用于在当前子帧上进行信道检测之前，在所述当前子帧或所述当前子帧的前一个子帧上向终端发送唤醒命令，以使所述终端根据所述唤醒命令在所述非授权频段的所述当前子帧和/或所述当前子帧之后的子帧上检测是否存在目标检测信号；
    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：在授权频段上通过物理层信令的方式向所述终端发送所述唤醒命令，其中，所述唤醒命令中包括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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