WO2017000415A1 - 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
WO2017000415A1
WO2017000415A1 PCT/CN2015/091371 CN2015091371W WO2017000415A1 WO 2017000415 A1 WO2017000415 A1 WO 2017000415A1 CN 2015091371 W CN2015091371 W CN 2015091371W WO 2017000415 A1 WO2017000415 A1 WO 2017000415A1
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Prior art keywords
signal
terminal
detection signal
target detection
frequency band
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PCT/CN2015/091371
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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 WO2017000415A1 publication Critical patent/WO2017000415A1/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
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point 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 service detection method when an LTE system operates in an unlicensed frequency band, and is configured to: receive, by the terminal, indication information from a base station that provides a service for the terminal; Instructing information to detect whether a target detection signal exists on at least one target symbol of a current subframe of the unlicensed frequency band to confirm whether the base station has occupied an idle channel; and when detecting the target detection signal, confirming the base station The idle channel has been occupied to enable the base station to perform traffic scheduling on the unlicensed frequency band.
  • the technical solution by detecting the received indication information from the base station serving the terminal, detecting whether there is a target on at least one target symbol of the current subframe of the unlicensed frequency band.
  • the signal is detected 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 service scheduling can be performed on the unlicensed frequency band.
  • the entire subframe is not required. The detection is performed, and only the target symbols (for example, the first, fifth, and eleventh symbols of the current subframe) are detected in advance, so that the energy consumption of the terminal can be effectively reduced, while achieving the purpose of energy saving.
  • 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 method further includes: receiving the Determining, by the RRC signaling, the MAC CE signal, or the physical layer signaling of the base station, the configuration information of the target detection signal, and detecting whether the target exists on the at least one target symbol according to the configuration information of the target detection signal Detection signal.
  • the RRC signaling, the MAC CE signal, or the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and then the at least one target symbol is detected according to the configuration information of the target detection signal. Whether the target detection signal exists on the target detection signal, and the configuration information of the target detection signal is used as a detection basis, further improving the accuracy of the service detection on the unlicensed frequency band, and avoiding the terminal missing the scheduling opportunity.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, and to enable the terminal to detect only at the at least one target symbol.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, so that the terminal detects whether the target detection signal exists only at the notified at least one target symbol, that is, no longer in other locations.
  • the detection is performed, the detection traffic is greatly reduced, the energy consumption of the terminal can be effectively reduced, and the location of the successful occupation of the channel by the base station can be accurately learned while achieving the purpose of energy saving, 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, and 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 solution.
  • the accuracy of the service detection on the unlicensed frequency band can be further improved, and the terminal is prevented 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 system for an LTE system operating in an unlicensed frequency band comprising: a receiving unit, configured to receive indication information from a base station serving the terminal; a detecting unit, configured to detect, according to the indication information, whether a target detection signal exists on at least one target symbol of a current subframe of the unlicensed frequency band, to confirm whether the base station has occupied an idle channel, and a confirming unit, configured to When the target detection signal is detected, it is confirmed that the base station has occupied an idle channel, so that the base station performs service scheduling on the unlicensed frequency band.
  • whether the target detection signal exists on at least one target symbol of the current subframe of the unlicensed frequency band is detected according to the received indication information from the base station serving the terminal to confirm whether the base station has occupied idle state.
  • the channel if the target detection signal is detected, indicates that the base station has occupied the idle channel, and the service scheduling can be performed on the unlicensed frequency band.
  • the entire subframe is not required to be detected, but only the target notified in advance.
  • the detection of the symbol (for example, the first, fifth, and eleventh symbols of the current subframe) can effectively reduce the energy consumption of the terminal, and can accurately know the location of the successfully occupied channel of the base station while achieving the purpose of energy saving. Thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the receiving unit is further configured to: detect, on the at least one target symbol of the current subframe of the unlicensed frequency band, according to the indication information Before the target detection signal is present, receiving RRC signaling, a MAC CE signal, or physical layer signaling from the base station, acquiring configuration information of the target detection signal, and detecting, according to configuration information of the target detection signal, Determining whether the target detection signal is present on at least one target symbol.
  • the RRC signaling, the MAC CE signal, or the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and then the at least one target symbol is detected according to the configuration information of the target detection signal. Whether the target detection signal exists on the target detection signal, and the configuration information of the target detection signal is used as a detection basis, further improving the accuracy of the service detection on the unlicensed frequency band, and avoiding the terminal missing the scheduling opportunity.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, and to enable the terminal to detect only at the at least one target symbol.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, so that the terminal detects whether the target detection signal exists only at the notified at least one target symbol, that is, no longer in other locations.
  • the detection is performed, the detection traffic is greatly reduced, the energy consumption of the terminal can be effectively reduced, and the location of the successful occupation of the channel by the base station can be accurately learned while achieving the purpose of energy saving, 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, and 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 solution.
  • the accuracy of the service detection on the unlicensed frequency band can be further improved, and the terminal is prevented 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 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.
  • a method for detecting a service when an LTE system operates in an unlicensed frequency band includes: transmitting, to the terminal, indication information, so that the terminal detects the information according to the indication information. Whether the target detection signal exists on at least one target symbol of the current subframe of the unlicensed frequency band, and transmitting configuration information of the target detection signal to the terminal, so that the terminal detects the non-detection according to the configuration information of the target detection signal Whether the target detection signal exists on the licensed frequency band; when the terminal detects the target detection signal, performing service scheduling on the unlicensed frequency band.
  • the indication information is sent to the terminal, so that the terminal detects whether the target detection signal exists on the at least one target symbol of the current subframe of the unlicensed frequency band according to the indication information, and the configuration of transmitting the target detection signal by transmitting the target detection signal to the terminal
  • the information is used to enable the terminal to detect whether there is a target detection signal on the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal, thereby determining whether the base station has successfully occupied the channel, and when the terminal detects the target detection signal, the information is unauthorized.
  • the service scheduling is performed on the frequency band, so that 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 indication information and the configuration information of the target detection signal are sent to the terminal by means of RRC signaling, MAC CE signal or physical layer signaling; and the indication information is used for Notifying the terminal of the location of the at least one target symbol in the current subframe, and causing the terminal to detect whether the target detection signal exists only at the at least one target symbol;
  • the target detection signal includes: a 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.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • CE Control Element, control unit
  • physical layer signaling means to inform the terminal indication information and configuration information of the target detection signal, the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, thereby making the terminal only At least one target symbol of the notification detects whether there is a target detection signal, that is, does not detect at other locations than the target symbol, which greatly reduces the detection traffic, and can effectively reduce the energy consumption of the terminal, and the configuration information of the target detection signal is used.
  • the terminal detects whether the target detection signal exists in the current subframe according to the configuration information of the target detection signal, so as to ensure the accuracy of the detection, so that the purpose of the energy saving can be accurately obtained, and the location of the successfully occupied channel of the base station can be accurately obtained, thereby effectively Avoid terminal missed scheduling opportunities.
  • 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.
  • a service detection system for an LTE system operating in an unlicensed frequency band includes a sending unit, and sends indication information to the terminal, so that the terminal according to the indication information. Detecting whether a target detection signal exists on at least one target symbol of a current subframe of the unlicensed frequency band, and transmitting configuration information of the target detection signal to the terminal, so that the terminal detects according to configuration information of the target detection signal Non-grant Whether the target detection signal exists on the right frequency band; the scheduling unit is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.
  • the indication information is sent to the terminal, so that the terminal detects whether the target detection signal exists on the at least one target symbol of the current subframe of the unlicensed frequency band according to the indication information, and the configuration of transmitting the target detection signal by transmitting the target detection signal to the terminal
  • the information is used to enable the terminal to detect whether there is a target detection signal on the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal, thereby determining whether the base station has successfully occupied the channel, and when the terminal detects the target detection signal, the information is unauthorized.
  • the service scheduling is performed on the frequency band, so that 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 sending unit is specifically configured to: send, by using RRC signaling, a MAC CE signal, or physical layer signaling, configuration information of the indication information and the target detection signal to the terminal.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, and to cause the terminal to detect whether the target detection signal exists only at the at least one target symbol;
  • 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 and a resource occupation of the reserved signal information.
  • the terminal is informed by means of RRC (Radio Resource Control) signaling, MAC (Medium Access Control) (CE), or physical layer signaling.
  • the configuration information of the information and the target detection signal, the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, so that the terminal detects whether the target detection signal exists only at the notified at least one target symbol, that is, not in the target.
  • the detection at other locations outside the symbol greatly reduces the detection traffic, and can effectively reduce the energy consumption of the terminal.
  • the configuration information of the target detection signal is used by the terminal to detect whether there is a target in the current subframe according to the configuration information of the target detection signal.
  • the detection signal ensures the accuracy of the detection.
  • 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 and a resource of the reserved signal.
  • 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 the target of the solution.
  • the method further includes: a monitoring unit, configured to monitor, when the target detection signal is the pilot signal, whether configuration information of the pilot signal changes, wherein the pilot
  • the configuration information of the signal includes: location information of the pilot signal and resource occupation information
  • 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.
  • 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.
  • Figure 8 shows a schematic diagram of a target symbol position on a predefined sub-frame in accordance with one 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: Receive indication information from a base station that provides a service for the terminal; 204. Detect, according to the indication information, whether a target detection signal exists on at least one target symbol of a current subframe of the unlicensed frequency band to confirm whether the base station has occupied an idle channel. In step 206, when the target is detected When detecting the signal, 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.
  • whether the target detection signal exists on at least one target symbol of the current subframe of the unlicensed frequency band is detected according to the received indication information from the base station serving the terminal to confirm whether the base station has occupied idle state.
  • the channel if the target detection signal is detected, indicates that the base station has occupied the idle channel, and the service scheduling can be performed on the unlicensed frequency band.
  • the entire subframe is not required to be detected, but only the target notified in advance.
  • the detection of the symbol (for example, the first, fifth, and eleventh symbols of the current subframe) can effectively reduce the energy consumption of the terminal, and can accurately know the location of the successfully occupied channel of the base station while achieving the purpose of energy saving. Thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the method further includes: receiving the Determining, by the RRC signaling, the MAC CE signal, or the physical layer signaling of the base station, the configuration information of the target detection signal, and detecting whether the target exists on the at least one target symbol according to the configuration information of the target detection signal Detection signal.
  • the RRC signaling, the MAC CE signal, or the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and then the at least one target symbol is detected according to the configuration information of the target detection signal. Whether the target detection signal exists on the target detection signal, and the configuration information of the target detection signal is used as a detection basis, further improving the accuracy of the service detection on the unlicensed frequency band, and avoiding the terminal missing the scheduling opportunity.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, and to enable the terminal to detect only at the at least one target symbol.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, so that the terminal detects whether the target detection signal exists only at the notified at least one target symbol, that is, no longer in other locations.
  • the detection is performed, the detection traffic is greatly reduced, the energy consumption of the terminal can be effectively reduced, and the location of the successful occupation of the channel by the base station can be accurately learned while achieving the purpose of energy saving, 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, which should be understood by those skilled in the art as long as it is suitable for solving the wake-up terminal applied to the unlicensed band.
  • the measured signals can be used as the target detection signals of the scheme. By detecting the diversity of the signals, the accuracy of the service detection on the unlicensed frequency bands can be further improved, and the terminal is prevented 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.
  • 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 receiving unit 302, configured to receive a base station from which the terminal is served. Instructing unit 304, configured to detect, according to the indication information, whether a target detection signal exists on at least one target symbol of a current subframe of the unlicensed frequency band, to confirm whether the base station has occupied an idle channel; 306. When detecting the target detection signal, confirm that the base station has occupied an idle channel, so that the base station performs service scheduling on the unlicensed frequency band.
  • whether the target detection signal exists on at least one target symbol of the current subframe of the unlicensed frequency band is detected according to the received indication information from the base station serving the terminal to confirm whether the base station has occupied idle state.
  • the channel if the target detection signal is detected, indicates that the base station has occupied the idle channel, and the service scheduling can be performed on the unlicensed frequency band.
  • the entire subframe is not required to be detected, but only the target notified in advance.
  • the symbol (for example, the first, fifth, and eleventh symbols of the current subframe) is detected, so that there may be Effectively reduce the energy consumption of the terminal, and achieve the purpose of energy saving, and accurately know the location of the channel successfully occupied by the base station, thereby effectively avoiding the terminal missing the scheduling opportunity.
  • the receiving unit 302 is further configured to: detect whether the target detection exists on the at least one target symbol of the current subframe of the unlicensed frequency band according to the indication information. Before receiving the signal, receiving RRC signaling, MAC CE signal or physical layer signaling from the base station, acquiring configuration information of the target detection signal, and detecting, at the at least one target symbol, according to configuration information of the target detection signal. Whether or not the target detection signal is present.
  • the RRC signaling, the MAC CE signal, or the physical layer signaling from the base station is received in advance to acquire configuration information of the target detection signal, and then the at least one target symbol is detected according to the configuration information of the target detection signal. Whether the target detection signal exists on the target detection signal, and the configuration information of the target detection signal is used as a detection basis, further improving the accuracy of the service detection on the unlicensed frequency band, and avoiding the terminal missing the scheduling opportunity.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, and to enable the terminal to detect only at the at least one target symbol.
  • the target detection signal includes: a reserved signal or a pilot signal.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, so that the terminal detects whether the target detection signal exists only at the notified at least one target symbol, that is, no longer in other locations.
  • the detection is performed, the detection traffic is greatly reduced, the energy consumption of the terminal can be effectively reduced, and the location of the successful occupation of the channel by the base station can be accurately learned while achieving the purpose of energy saving, 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, and 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 solution.
  • the accuracy of the service detection on the unlicensed frequency band can be further improved, and the terminal is prevented 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 The device includes: location information of the pilot signal and resource occupancy 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 frequency band is used in a base station, and the method includes: Step 402: Send indication information to a terminal, so that the terminal is configured according to the Instructing information to detect whether a target detection signal exists on at least one target symbol of a current subframe of the unlicensed frequency band, and transmitting configuration information of the target detection signal to the terminal, so that the terminal is configured according to the target detection signal And detecting, by the information, whether the target detection signal exists on the unlicensed frequency band; and in step 404, when the terminal detects the target detection signal, performing service scheduling on the unlicensed frequency band.
  • the indication information is sent to the terminal, so that the terminal detects whether the target detection signal exists on the at least one target symbol of the current subframe of the unlicensed frequency band according to the indication information, and the configuration of transmitting the target detection signal by transmitting the target detection signal to the terminal
  • the information is used to enable the terminal to detect whether there is a target detection signal on the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal, thereby determining whether the base station has successfully occupied the channel, and when the terminal detects the target detection signal, the information is unauthorized.
  • the service scheduling is performed on the frequency band, so that 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 indication information and the configuration information of the target detection signal are sent to the terminal by means of RRC signaling, MAC CE signal or physical layer signaling; and the indication information is used for Notifying the terminal that the at least one target symbol is in the Position of the previous subframe, and causing the terminal to detect whether the target detection signal is present only at the at least one target symbol;
  • the target detection signal includes: a reserved signal or a pilot signal; when the target detection signal When the signal is reserved, the configuration information of the reserved signal includes: a signal sequence of the reserved signal and resource occupation information.
  • the terminal is informed by means of RRC (Radio Resource Control) signaling, MAC (Medium Access Control) (CE), or physical layer signaling.
  • the configuration information of the information and the target detection signal, the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, so that the terminal detects whether the target detection signal exists only at the notified at least one target symbol, that is, not in the target.
  • the detection at other locations outside the symbol greatly reduces the detection traffic, and can effectively reduce the energy consumption of the terminal.
  • the configuration information of the target detection signal is used by the terminal to detect whether there is a target in the current subframe according to the configuration information of the target detection signal.
  • the detection signal ensures the accuracy of the detection.
  • 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, and ensures detection. Accuracy, and thus accurately know the location of the channel successfully occupied by the base station, thereby effectively avoiding the terminal missing the scheduling opportunity, wherein the configuration signal of the pilot signal
  • the information specifically includes: location information of the pilot signal and resource occupancy information.
  • 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, which sends indication information to a terminal, so that the terminal is configured according to the terminal.
  • the indication information detects whether a target detection signal exists on at least one target symbol of 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 is present on the unlicensed frequency band.
  • the scheduling unit 504 is configured to perform service scheduling on the unlicensed frequency band when the terminal detects the target detection signal.
  • the indication information is sent to the terminal, so that the terminal detects whether the target detection signal exists on the at least one target symbol of the current subframe of the unlicensed frequency band according to the indication information, and the configuration of transmitting the target detection signal by transmitting the target detection signal to the terminal
  • the information is used to enable the terminal to detect whether there is a target detection signal on the current subframe of the unlicensed frequency band according to the configuration information of the target detection signal, thereby determining whether the base station has successfully occupied the channel, and when the terminal detects the target detection signal, the information is unauthorized.
  • the service scheduling is performed on the frequency band, so that 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 sending unit 502 is specifically configured to: send, by using RRC signaling, a MAC CE signal, or a physical layer signaling, the configuration of the indication information and the target detection signal to the terminal.
  • the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, and to cause the terminal to detect whether the target detection signal is present only at the at least one target symbol
  • 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 and a resource of the reserved signal Occupy information.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • CE Control Element, control unit
  • physical layer signaling means to inform the terminal indication information and configuration information of the target detection signal, the indication information is used to notify the terminal of the location of the at least one target symbol in the current subframe, thereby making the terminal only At least one target symbol of the notification detects whether there is a target detection signal, that is, does not detect at other locations than the target symbol, which greatly reduces the detection traffic, and can effectively reduce the energy consumption of the terminal, and the configuration information of the target detection signal is used.
  • the terminal detects whether the target detection signal exists in the current subframe according to the configuration information of the target detection signal, so as to ensure the accuracy of the detection, so that the purpose of the energy saving can be accurately obtained, and the location of the successfully occupied channel of the base station can be accurately obtained, thereby effectively Avoid terminal missed scheduling opportunities.
  • 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.
  • 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 detection 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, No longer.
  • 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.
  • Figure 8 shows a schematic diagram of a target symbol position on a predefined sub-frame in accordance with one embodiment of the present invention.
  • the terminal does not need to detect the entire subframe N (the current subframe), but only on the OFDM symbol (Orthogonal Frequency Division Multiplexing Symbol) (target symbol) that is notified in advance.
  • the premise of this method is that the eNB (Evolved Node B) performs pilot signal, reserved signal or control/data transmission only at a predefined OFDM symbol position, and passes RRC signaling, MAC CE letter. Let the physical layer signal be notified to the terminal.
  • the base station pre-defined the pilot signal, the reserved signal, or the start position of the control/data transmission may only appear on the first, fifth, and eleven OFDM symbols on the subframe N, then the terminal It is only necessary to perform detection on the first, fifth, and eleven OFDM symbols on the subframe in each subframe, and not to detect at other locations.
  • the terminal detects the reserved signal (target detection signal) on the eleventh OFDM symbol, so that it is known that the eNB has successfully occupied the channel, and there may be a scheduling opportunity.
  • the predefined location of the OFDM symbol can also be notified to the terminal in an implicit manner, such as defining a rule, and the terminal can learn the location on a certain subframe that needs to be detected based on the rule. Specifically, it may be defined that the location detected by the terminal on each subframe in the unlicensed frequency band is the same as the location of the pilot signal transmission on the licensed frequency band, and then after the terminal learns the configuration of the pilot signal on the authorized frequency, the terminal can clearly The detection location on the unlicensed band.

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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LTE系统在非授权频段工作时的业务检测方法包括：接收来自为所述终端提供服务的基站的指示信息；根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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：接收来自为所述终端提供服务的基站的指示信息；根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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，通过根据接收到的来自为终端提供服务的基站的指示信息，检测非授权频段的当前子帧的至少一个目标符号上是否存在目标 检测信号，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，在本方案中，不需要对整个子帧进行检测，而仅仅是在预先通知的目标符号(比如，当前子帧的第1、5和11个符号)上进行检测，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，在根据所述指示信息检测所述非授权频段的所述当前子帧的所述至少一个目标符号上是否存在所述目标检测信号之前，还包括：接收来自所述基站的RRC信令、MAC CE信号或物理层信令，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在所述至少一个目标符号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RRC信令、MAC CE信号或物理层信令，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，所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不再在其他位置上进行检测，大大减少了检测业务量，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。
另外，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：接收单元，用于接收来自为所述终端提供服务的基站的指示信息；检测单元，用于根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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，通过根据接收到的来自为终端提供服务的基站的指示信息，检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，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，在本方案中，不需要对整个子帧进行检测，而仅仅是在预先通知的目标符号(比如，当前子帧的第1、5和11个符号)上进行检测，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，所述接收单元还用于：在根据所述指示信息检测所述非授权频段的所述当前子帧的所述至少一个目标符号上是否 存在所述目标检测信号之前，接收来自所述基站的RRC信令、MAC CE信号或物理层信令，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在所述至少一个目标符号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RRC信令、MAC CE信号或物理层信令，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，所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不再在其他位置上进行检测，大大减少了检测业务量，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。
另外，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：向终端发送指示信息，以使所述终端根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，以及向所述终端发送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，通过向终端发送指示信息，以使终端根据指示信息检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，并且，通过向终端发送目标检测信号的配置信息，以使终端根据目标检测信号的配置信息检测非授权频段的当前子帧上是否存在目标检测信号，进而判断基站是否已经成功占用了信道，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，通过RRC信令、MAC CE信号或物理层信令的方式向所述终端发送所述指示信息和所述目标检测信号的配置信息；以及所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，通过RRC(Radio Resource Control，无线资源控制)信令、MAC(Medium Access Control，媒体接入控制)CE (Control Element，控制单元)信号或物理层信令的方式告知终端指示信息和目标检测信号的配置信息，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不在除目标符号外的其他位置上进行检测，大大减少了检测业务量，可以有效地减少终端的能量消耗，目标检测信号的配置信息用于供终端根据目标检测信号的配置信息检测当前子帧上是否存在目标检测信号，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。
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，向终端发送指示信息，以使所述终端根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，以及向所述终端发送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，通过向终端发送指示信息，以使终端根据指示信息检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，并且，通过向终端发送目标检测信号的配置信息，以使终端根据目标检测信号的配置信息检测非授权频段的当前子帧上是否存在目标检测信号，进而判断基站是否已经成功占用了信道，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：通过RRC信令、MAC CE信号或物理层信令的方式向所述终端发送所述指示信息和所述目标检测信号的配置信息；以及所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，通过RRC(Radio Resource Control，无线资源控制)信令、MAC(Medium Access Control，媒体接入控制)CE(Control Element，控制单元)信号或物理层信令的方式告知终端指示信息和目标检测信号的配置信息，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不在除目标符号外的其他位置上进行检测，大大减少了检测业务量，可以有效地减少终端的能量消耗，目标检测信号的配置信息用于供终端根据目标检测信号的配置信息检测当前子帧上是否存在目标检测信号，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。
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定义子帧上目标符号位置的示意图。
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，接收来自为所述终端提供服务的基站的指示信息；步骤204，根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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，通过根据接收到的来自为终端提供服务的基站的指示信息，检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，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，在本方案中，不需要对整个子帧进行检测，而仅仅是在预先通知的目标符号(比如，当前子帧的第1、5和11个符号)上进行检测，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，在根据所述指示信息检测所述非授权频段的所述当前子帧的所述至少一个目标符号上是否存在所述目标检测信号之前，还包括：接收来自所述基站的RRC信令、MAC CE信号或物理层信令，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在所述至少一个目标符号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RRC信令、MAC CE信号或物理层信令，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，所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不再在其他位置上进行检测，大大减少了检测业务量，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。
另外，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：接收单元302，用于接收来自为所述终端提供服务的基站的指示信息；检测单元304，用于根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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，通过根据接收到的来自为终端提供服务的基站的指示信息，检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，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，在本方案中，不需要对整个子帧进行检测，而仅仅是在预先通知的目标符号(比如，当前子帧的第1、5和11个符号)上进行检测，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，所述接收单元302还用于：在根据所述指示信息检测所述非授权频段的所述当前子帧的所述至少一个目标符号上是否存在所述目标检测信号之前，接收来自所述基站的RRC信令、MAC CE信号或物理层信令，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在所述至少一个目标符号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RRC信令、MAC CE信号或物理层信令，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，所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不再在其他位置上进行检测，大大减少了检测业务量，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。
另外，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，向终端发送指示信息，以使所述终端根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，以及向所述终端发送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，通过向终端发送指示信息，以使终端根据指示信息检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，并且，通过向终端发送目标检测信号的配置信息，以使终端根据目标检测信号的配置信息检测非授权频段的当前子帧上是否存在目标检测信号，进而判断基站是否已经成功占用了信道，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，通过RRC信令、MAC CE信号或物理层信令的方式向所述终端发送所述指示信息和所述目标检测信号的配置信息；以及所述指示信息用于通知所述终端所述至少一个目标符号在所述当 前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，通过RRC(Radio Resource Control，无线资源控制)信令、MAC(Medium Access Control，媒体接入控制)CE(Control Element，控制单元)信号或物理层信令的方式告知终端指示信息和目标检测信号的配置信息，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不在除目标符号外的其他位置上进行检测，大大减少了检测业务量，可以有效地减少终端的能量消耗，目标检测信号的配置信息用于供终端根据目标检测信号的配置信息检测当前子帧上是否存在目标检测信号，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。
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，向终端发送指示信息，以使所述终端根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，以及向所述终端发送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，通过向终端发送指示信息，以使终端根据指示信息检测非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，并且，通过向终端发送目标检测信号的配置信息，以使终端根据目标检测信号的配置信息检测非授权频段的当前子帧上是否存在目标检测信号，进而判断基站是否已经成功占用了信道，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：通过RRC信令、MAC CE信号或物理层信令的方式向所述终端发送所述指示信息和所述目标检测信号的配置信息；以及所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；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，通过RRC(Radio Resource Control，无线资源控制)信令、MAC(Medium Access Control，媒体接入控制)CE (Control Element，控制单元)信号或物理层信令的方式告知终端指示信息和目标检测信号的配置信息，指示信息用于通知终端至少一个目标符号在当前子帧的位置，进而使终端仅在被通知的至少一个目标符号处检测是否存在目标检测信号，即不在除目标符号外的其他位置上进行检测，大大减少了检测业务量，可以有效地减少终端的能量消耗，目标检测信号的配置信息用于供终端根据目标检测信号的配置信息检测当前子帧上是否存在目标检测信号，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。
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定义子帧上目标符号位置的示意图。
在该技术方案中，终端不需要去检测整个子帧N(当前子帧)，而仅仅是在预先通知的OFDM symbol(Orthogonal frequency division multiplexing symbol，正交频分复用符号)(目标符号)上进行检测。这种方法的前提是eNB(Evolved Node B，演进型基站)只在预定义的OFDM符号位置上进行导频信号、预留信号或是控制/数据的传输，并通过RRC信令，MAC CE信令或是物理层信令通知给终端。
如图8所示，基站预先定义导频信号、预留信号或是控制/数据的传输的起始位置只可能是在子帧N上的第1，5，11个OFDM符号上出现，那么终端在每个子帧上只需在子帧上的第1，5，11个OFDM符号上进行检测，而在其他位置上不进行检测。在该示例中，终端在第11个OFDM符号上检测到了预留信号(目标检测信号)，因此知道eNB已经成功占用到了信道，可以有调度机会了。
OFDM符号的预定义的位置还可以通过隐式的方式通知给终端，如定义规则，终端可以基于这个规则来获知某个子帧上需要检测的位置。具体地，可以定义终端在非授权频段上每个子帧上检测的位置与授权频段上导频信号传输的位置相同，那么终端在获知授权频度上的导频信号的配置后，就可以明确在非授权频段上的检测位置。
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：
    接收来自为所述终端提供服务的基站的指示信息；
    根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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，在根据所述指示信息检测所述非授权频段的所述当前子帧的所述至少一个目标符号上是否存在所述目标检测信号之前，还包括：
    接收来自所述基站的RRC信令、MAC CE信号或物理层信令，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在所述至少一个目标符号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，
    所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；
    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：
    接收单元，用于接收来自为所述终端提供服务的基站的指示信息；
    检测单元，用于根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上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，所述接收单元还用于：
    在根据所述指示信息检测所述非授权频段的所述当前子帧的所述至少一个目标符号上是否存在所述目标检测信号之前，接收来自所述基站的RRC信令、MAC CE信号或物理层信令，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在所述至少一个目标符号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，
    所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；
    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：
    向终端发送指示信息，以使所述终端根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，以及
    向所述终端发送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，
    通过RRC信令、MAC CE信号或物理层信令的方式向所述终端发送所述指示信息和所述目标检测信号的配置信息；以及
    所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；
    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，向终端发送指示信息，以使所述终端根据所述指示信息检测所述非授权频段的当前子帧的至少一个目标符号上是否存在目标检测信号，以及
    向所述终端发送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：通过RRC信令、MAC CE信号或物理层信令的方式向所述终端发送所述指示信息和所述目标检测信号的配置信息；以及
    所述指示信息用于通知所述终端所述至少一个目标符号在所述当前子帧的位置，以及使所述终端仅在所述至少一个目标符号处检测是否存在所述目标检测信号；
    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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