WO2016161710A1 - 信道占用概率的调整方法、调整系统和设备 - Google Patents

信道占用概率的调整方法、调整系统和设备 Download PDF

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WO2016161710A1
WO2016161710A1 PCT/CN2015/082992 CN2015082992W WO2016161710A1 WO 2016161710 A1 WO2016161710 A1 WO 2016161710A1 CN 2015082992 W CN2015082992 W CN 2015082992W WO 2016161710 A1 WO2016161710 A1 WO 2016161710A1
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channel
channel detection
transmission
time
detection mechanism
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PCT/CN2015/082992
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English (en)
French (fr)
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朱亚军
李明菊
张云飞
何成名
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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 WO2016161710A1 publication Critical patent/WO2016161710A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • 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 method for adjusting a channel occupancy probability, a channel occupancy probability adjustment system, and a device having a base station function.
  • 3GPP is discussing how to use unlicensed spectrum, such as the 2.4 GHz and 5 GHz bands, with the help of licensed spectrum.
  • unlicensed spectrum are currently mainly used in systems such as Wi-Fi, Bluetooth, radar, and medical.
  • LTE Long Term Evolution
  • CA Carrier Aggregation
  • 3GPP proposes the concept of LAA (LTE Assisted Access), which uses the help of LTE licensed spectrum to use unlicensed spectrum.
  • the unlicensed spectrum can work in two modes. One is the downlink (SDL), that is, only the downlink transmission subframe, and the other is the TDD mode, which includes the downlink subframe and the uplink subframe.
  • SDL downlink
  • TDD mode which includes the downlink subframe and the uplink subframe.
  • the carrier aggregation technology as shown in Figure 1).
  • the TDD mode can also be used by DC (Dual Connectivity) or independently.
  • LTE systems operating in unlicensed bands have the ability to provide higher spectral efficiency and greater coverage, while relying on the same core network to allow data traffic between licensed and unlicensed bands. Sew switch. For the user, this means a better broadband experience, Higher speed, better stability and mobility.
  • Wi-Fi Wireless Fidelity
  • CSMA/CD Carrier Sense Multiple Access/Collision Detection
  • the basic principle of this method is Wi-Fi. Before the AP (Access Point) or the terminal sends signaling or data, it must first monitor whether other APs or other terminals are transmitting/receiving signaling or data. If so, continue to listen until it is monitored. If not, a random number is generated as the backoff time. If no signaling or data transmission is detected during this backoff time, the AP or the terminal may start transmitting signaling or data after the end of the backoff time. The process is shown in Figure 2.
  • CSMA/CD Carrier Sense Multiple Access/Collision Detection
  • the LTE network has good orthogonality to ensure the interference level, the uplink and downlink transmissions between the base station and the user do not need to consider whether other base stations or other users are transmitting data. If LTE is used on an unlicensed band, it does not consider whether other devices are using unlicensed bands nearby, which will cause great interference to Wi-Fi devices. Because LTE transmits as long as there is traffic, there is no monitoring rule, then the Wi-Fi device cannot transmit when LTE has service transmission, and can only detect the channel idle state for data transmission after the LTE service transmission is completed.
  • LAA LTE assisted access
  • existing access technologies such as WiFi
  • LBT Listen Before Talk
  • LTE requires an LBT mechanism. In this way, if the LTE detects that the channel is busy on the unlicensed spectrum, the LTE cannot occupy the frequency band, and if the channel is detected to be idle, it can be occupied.
  • a LBT mechanism based on frame structure (FBE, Framed based equipment) is proposed (as shown in Figure 3), and the left slash is the channel detection time of CCA (Clear Channel Assessment).
  • CCA Car Channel Assessment
  • the CCA detection time is periodically repeated. If the channel is idle, the channel is occupied. After the channel occupancy time reaches the maximum channel occupation time, there is an idle time. At the idle time, the transmission point does not send signals and data, so as to facilitate other channels. The sending point preempts the channel. After the idle time, the CCA detection time appears again. When the channel is detected to be busy, the channel is not occupied, and the channel is detected again until the CCA detection time of the next period occurs.
  • the channel detection time also belongs to the idle time, and the idle duration must be greater than 5% of the maximum channel occupation time.
  • the Idle time plus the maximum time occupied by the channel is the period.
  • an LBT mechanism based on load-based is proposed as shown in Figure 4:
  • the LBT-based LBT mechanism is cycle-free. As long as the service arrives, the CCA detection is triggered. If the CCA detection is idle, Then, signaling or data is sent immediately; if the channel is detected to be busy, a random number N, N is taken in the range of 1 to q (ie, the length of the contention window), and the value range of q is 4 to 32.
  • the extended CCA (extended channel detection time) mechanism is adopted, that is, the random value N, N ranges from 1 to 16. If the value is 8, it means that in the next consecutive CCA detection time.
  • the channel is detected every CCA detection time. If the channel is detected to be idle, N-1, if the channel is detected to be busy, N is unchanged, and when N is 0, signaling or data is sent.
  • reference signals for RRM (Radio Resource Management) measurement, cell identification, downlink synchronization, time-frequency estimation, etc. in the LAA are implemented in two ways: one is short control signaling (short-time control signal) The requirement that this method needs to be met is that 5% of the time can be sent within 50ms, which is 2.5ms. The other is to send a non-periodic DRS (Discovery Reference Signal), because it takes 6ms to send DRS, and if it is sent when it detects that the channel is busy, it will cause more interference to other systems. Therefore, if the DRS is sent, it can only be sent when the channel is detected to be idle, then the DRS is aperiodic.
  • short control signaling short-time control signal
  • DRS Discovery Reference Signal
  • the terminal since the terminal transmits data or receives data, it must implement cell identification, downlink synchronization, time-frequency estimation, etc. according to the downlink reference signal (ie, DRS signal) of the base station in advance. Therefore, when the DRS must be idle before channel detection can be sent.
  • DRS signal downlink reference signal
  • some LAA cells perform LBT channel detection even if no data service needs to be transmitted, and transmit DRS when detecting that the channel is idle.
  • the terminal needs to consume more power in order to measure the neighboring cell, especially when the inter-frequency measurement is performed, the neighboring cell may not preempt the channel, and Send DRS, so that the terminal is in the measurement interval measurement gap When the reference signal DRS of a neighboring cell is not detected.
  • the LAA cell cannot transmit the reference signal DRS for a long time, the measurement accuracy of the terminal is low. So how to ensure that the channel can be captured with a greater probability when transmitting the reference signal DRS?
  • the LBT mechanism for transmitting DRS can improve the ability to preempt the channel and make it better than the LBT mechanism for transmitting common downlink data. It is easier to preempt the channel or at least have the same channel preemption probability as the LBT mechanism for transmitting the normal downlink data, so as to reduce the power consumption consumed by the terminal to measure the reference signal DRS, perform cell identification, downlink synchronization, and time-frequency estimation, and improve accuracy. Become an urgent problem to be solved.
  • the present invention is based on the above problems, and proposes a new technical solution, so that in the process of channel detection, whether the LBT mechanism for transmitting DRS and the LBT mechanism for transmitting normal downlink data are based on the frame structure LBT mechanism or based on
  • the LBT mechanism of the load can improve the ability of the LBT mechanism to transmit the DRS to preempt the channel, so that it is easier to preempt the channel than the LBT mechanism that sends the normal downlink data, so that the discovery reference signal is more likely to occupy the channel or at least send the normal downlink data.
  • the LBT mechanism has the same channel preemption probability, thereby reducing power consumption consumed by the terminal measurement reference signal DRS, performing cell identification, downlink synchronization, and time-frequency estimation, and improving accuracy.
  • an aspect of the present invention provides a method for adjusting a channel occupancy probability, which is used for a device having a base station function, including: adjusting the to-be-waited according to a data type of data to be transmitted of the device having a base station function
  • the parameter information of the channel detection mechanism corresponding to the data is sent; and the probability that the to-be-sent data occupies the downlink channel is adjusted according to the adjusted parameter information, where the data type of the to-be-sent data includes: a discovery reference signal and/or Or downlink data.
  • the parameter information of the LBT mechanism ie, the channel detection mechanism
  • the LBT mechanism corresponding to the reference signal and the downlink data is used to use the same or different parameter information, so as to adjust the probability that the data to be transmitted occupies the downlink channel, so that the LBT mechanism for transmitting the DRS can preempt the channel.
  • the LBT mechanism for transmitting the DRS signal is more likely to preempt the channel than the LBT mechanism for transmitting the normal downlink data, or at least has the same channel occupation rate as the LBT mechanism for transmitting the normal downlink data, so that the discovery reference signal is more likely to occupy the channel or At least the same channel occupancy probability as the normal downlink data, thereby realizing timely transmission of the DRS signal, so as to reduce power consumption consumed by the terminal measurement reference signal DRS, performing cell identification, downlink synchronization, and time-frequency estimation, and improving accuracy, of course,
  • the LBT mechanism for transmitting the DRS and the LBT mechanism for transmitting the normal downlink data may be a frame structure based LBT mechanism or a load based LBT mechanism.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the parameter information of the channel detection mechanism corresponding to the data to be sent is adjusted according to the data type of the to-be-sent data of the device with the function of the base station
  • the method includes: according to the The data type of the data to be transmitted of the device functioning by the base station is adjusted by at least one parameter or a combination thereof: a channel detection time granularity of the channel detection mechanism corresponding to the data to be transmitted, and a channel detection mechanism corresponding to the to-be-sent data
  • the maximum channel occupation time, the contention window length of the extended channel detection time used when the device having the base station function transmits the data to be transmitted using the load-based channel detection mechanism, and the channel detection corresponding to the to-be-sent data A signal strength threshold used by the mechanism to determine whether the downlink channel is idle.
  • the LBT mechanism for transmitting the DRS can improve the ability to preempt the channel, which is easier than the LBT mechanism for transmitting the normal downlink data. Preempting the channel, so that the discovery reference signal is more likely to occupy the channel, or at least has the same channel occupancy probability as the normal downlink data, thereby reducing the power consumption consumed by the terminal measurement reference signal DRS, performing cell identification, downlink synchronization, and time-frequency estimation. Improve accuracy.
  • the channel detection mechanism includes: a first channel detection mechanism and a second channel detection mechanism, where when the discovery reference signal is sent, the first channel detection mechanism is used to detect the a downlink channel, when the downlink data is sent, detecting the downlink channel by using the second channel detection mechanism.
  • the first use A channel detection mechanism and a second channel detection mechanism detect the downlink channel
  • the first channel detection mechanism and the second channel detection mechanism may be the same or different, for example, may be based on a frame structure (or load based) LBT mechanism, but The parameters are different, and can also be a frame structure based LBT mechanism and a load based LBT mechanism.
  • the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data is adjusted by the following process, so that the probability that the discovery reference signal occupies the downlink channel is greater than or equal to the second channel.
  • the probability of the detection mechanism occupying the downlink channel : adjusting a first channel detection time granularity of the first channel detection mechanism to be less than or equal to a second channel detection time granularity of the second channel detection mechanism; and/or
  • the maximum channel occupancy time of the first channel detection mechanism is adjusted to be less than or equal to the maximum channel occupation time of the second channel detection mechanism; and/or the first of the extended channel detection time used by the first channel detection mechanism
  • the contention window length is adjusted to be less than or equal to a second contention window length of the extended channel detection time used by the second channel detection mechanism; and/or used by the first channel detection mechanism to determine whether the downlink channel is used
  • the idle first signal strength threshold is adjusted to be greater than or equal to that used by the second channel detection mechanism for determining Said second downlink signal strength threshold
  • a device having a base station function transmits a discovery reference signal or/or downlink data
  • the parameter information of the first channel detection mechanism and the second channel detection mechanism according to the foregoing manner, it can ensure strong power.
  • Improve the ability of the LBT mechanism to transmit DRS to preempt the channel so that it is easier to preempt the channel than the LBT mechanism that sends ordinary downlink data, or at least have the same channel occupancy rate as the LBT mechanism that sends ordinary downlink data, so as to reduce the terminal measurement reference.
  • the power consumption consumed by the signal DRS, cell identification, downlink synchronization, and time-frequency estimation improves accuracy.
  • the specific process is: adjusting the CCA detection time length (ie, granularity) of the LBT mechanism that sends the DRS to be less than or equal to the CCA detection time length of the LBT mechanism for transmitting data.
  • the CCA detection time length in the LBT mechanism for transmitting data is 20 us (the detection time length is the minimum detection time granularity of the CCA specified in the unlicensed spectrum rule)
  • the CCA detection time in the LBT mechanism for transmitting the reference signal DRS The length of the CCA detection time in the LBT mechanism for transmitting data is 30 us, and the length of the CCA detection time in the LBT mechanism for transmitting the reference signal DRS may be 20 us.
  • the maximum channel occupation time of the LBT mechanism for transmitting the reference signal DRS is adjusted to be less than or equal to the maximum channel occupation time of the LBT mechanism for transmitting data, for example, when the maximum channel occupation time in the LBT mechanism for transmitting data is 4 ms, the reference signal DRS is transmitted.
  • the maximum channel occupation time in the LBT mechanism can be 3 ms;
  • the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the reference signal DRS is smaller than the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the data, thereby
  • the probability that the random number N takes a smaller value is high.
  • the q value of the LBT mechanism for transmitting the reference signal DRS is 4, the q value in the LBT mechanism for transmitting data can be 16 to 32.
  • the random number N of the LBT mechanism for transmitting the reference signal DRS is taken from 1 to q, the value is small, which means that the DRS can be transmitted when the channel is idle when less CCA detection time is detected;
  • the DRS can be sent.
  • the downlink data can be sent only when the channel interference is small.
  • the LBT mechanism for transmitting the normal downlink data is more likely to preempt the channel than the LBT mechanism for transmitting the DRS
  • the LBT mechanism for transmitting the normal downlink data and the LBT mechanism for transmitting the DRS may be adjusted in a completely opposite manner to the foregoing control manner.
  • Various parameter information may be adjusted in a completely opposite manner to the foregoing control manner.
  • the method further includes: setting a first transmission period for the discovery reference signal in a frame structure; and setting at least one second transmission period for the discovery reference signal in the first transmission period; Setting a transmission window at the same position in each of the at least one of the second transmission periods, and sequentially setting them in the transmission window in each of the second transmission periods in order And detecting at least one channel detection time that the downlink channel is idle, for detecting whether the downlink channel is idle.
  • a larger first transmission period is set for the discovery reference signal in the frame structure, and at least one smaller second transmission period is set in the first transmission period, and in each second transmission A transmission window is set in the same position in the cycle, so that it is convenient to set at least one channel detection time in each transmission window that can continuously detect whether the downlink channel is idle and
  • the CCA is set for each of the at least one channel detection time, so that the CCA can be used to detect whether the downlink channel is idle during each channel detection time to transmit the DRS signal when idle.
  • the first sending period is greater than the first preset sending period, where the first preset sending period is equal to the small cell in the serving cell where the device with the base station function is located is closed. Transmitting a minimum period value of the discovery reference signal, and the first transmission period is equal to a period value other than the minimum period value used when the discovery reference signal is sent when the small cell is off;
  • the second transmission period is smaller than the second preset transmission period, where the second preset transmission period is equal to a maximum period value that occurs in the measurement interval in the inter-frequency measurement, and the second transmission period is equal to the maximum frequency in the inter-frequency measurement Other period values occurring at the measurement interval other than the period value, and the length of the transmission window is equal to the length of the measurement interval in the inter-frequency measurement.
  • the sending period is greater than the first preset sending period, which can ensure that the first sending period is a larger value in the traditional DRS sending period, for example, 160 ms, and further, by making the second sending period equal to the maximum period value (such as 80 ms) in the inter-frequency measurement.
  • Other period values occurring outside the measurement interval, and making the second transmission period smaller than the second predetermined transmission period, can ensure that the second transmission period is a smaller value (for example, 40 ms) of the period in which the measurement interval occurs in the inter-frequency measurement In this way, it is convenient to detect whether the downlink channel is idle or not, so that when the idle is detected, the DRS can be sent in time, and the accuracy of the channel measurement result can be improved, and the capability of the DRS to occupy the channel can be further improved to prevent the DRS from being transmitted. Because the downlink channel detection is infrequent, the timing of transmitting the DRS is missed.
  • the method further includes: detecting, when any of the channel detection times in any one of the second transmission periods, that the downlink channel is idle, and the transmission window of any one of the second transmission periods When the remaining time is greater than or equal to the maximum channel occupation time of the first channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time, Sending the discovery reference signal in a remaining time of a transmission window of a second transmission period, wherein any one of the second transmission periods is the first Any of the second transmission periods in the transmission period.
  • a discovery reference may be sent in the remaining time of the transmission window of any second transmission period.
  • the method further includes: when the downlink channel idle is still not detected in at least one channel detection time in the transmission window of any one of the second transmission periods, and the following conditions are met And stopping to set another channel detection time in the transmission window of any of the second transmission periods, and setting at least one channel detection in a transmission window of another second transmission period adjacent to any one of the second transmission periods Time: at least one second sending period is set in the first sending period, and a remaining time in a sending window of any one of the second sending periods is smaller than a maximum channel occupying time of the first channel detecting mechanism; and Or at least one second sending period is set in the first sending period, and a remaining time in a sending window of any one of the second sending periods is smaller than a maximum channel occupying time of the first channel detecting mechanism and a terminal receiver The sum of the frequency switching times.
  • the downlink channel idle is not detected in at least one channel detection time in the transmission window of any of the second transmission periods, if the remaining time in the transmission window of any second transmission period is less than the The maximum channel occupancy time of a channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time may not be set in the transmission window of any of the second transmission periods.
  • Other channel detection time that is, no CCA detection is required, because even if the following CCA detects that the channel is idle during other channel detection times, the complete DRS cannot be transmitted, and the second transmission period can be sequentially followed by any of the second transmission periods.
  • the CCA is used to detect whether the downlink channel is idle during the at least one channel detection time.
  • the method further includes: when the discovery reference signal is sent in a transmission window in any of the second transmission periods, releasing the remaining time in the first transmission period Determining the downlink channel, stopping transmitting the discovery reference signal, and stopping the remaining other second transmissions in the remaining time in the first transmission period when at least one second transmission period is set in the first transmission period A channel detection time for transmitting the discovery reference signal is set in a periodic transmission window for detecting whether the downlink channel is idle.
  • the downlink channel when the discovery reference signal has been sent in the transmission window in any second transmission period, the downlink channel may be released in the remaining time in the first transmission period, so that the discovery reference signal is no longer transmitted, and Stop setting the channel detection time for detecting whether the downlink channel is idle to transmit the discovery reference signal in the transmission window of the remaining second transmission period, so as to ensure that the DRS is transmitted at most once in the first transmission period, and the DRS signal is prevented from being transmitted too much. Frequently, occupying the downlink channel for too long affects the normal transmission of downlink data.
  • the method further includes: determining, when the downlink channel is idle in any channel detection time of any second transmission period, determining whether the any channel detection time is any one of the foregoing The channel detection time before the Nth channel detection time in the transmission window of the second transmission period; when the determination result is yes, the discovery reference signal is not sent, and the terminal receiver frequency switching time is reserved for the terminal; otherwise, the transmission is performed.
  • the discovery reference signal wherein the terminal receiver frequency switching time comprises: (N-1) sums of times of the channel detection time, where N is a positive integer, and any second transmission period Is any one of the first transmission periods of the first transmission period.
  • the downlink channel idle is detected in any channel detection time of any second transmission period
  • any of the channel detection times is the Nth in the transmission window of any of the second transmission periods
  • the channel detection time before the channel detection time is not sent the discovery reference signal, so that the channel detection time before the Nth channel detection time is conveniently reserved to the terminal as the terminal receiver frequency switching time; If the channel detection time is the Nth channel detection time or the channel detection time after the Nth channel detection time, it can be said that the terminal receiver frequency switching time has been reserved for the terminal, and the discovery reference signal can be immediately transmitted.
  • the adjusting the to-be-sent includes: adjusting the first channel detection time granularity to be less than or equal to the second channel detection time granularity; and/or the first channel detection mechanism
  • the maximum channel occupancy time is adjusted to be less than or equal to the maximum channel occupancy time of the second channel detection mechanism; and/or the first contention window number is adjusted to be less than or equal to the second contention window number; and/or
  • the process of adjusting the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data the method further includes: using the second channel The detection time granularity is adjusted to be greater than or equal to the first channel detection time granularity; and/or the maximum signal of the second channel detection mechanism
  • the channel occupancy time is
  • the parameter information of the first channel detection mechanism or the second channel detection mechanism may be adjusted, so that the first channel detection mechanism and the second channel detection mechanism both use the parameter information of the second channel detection mechanism, or the first Both the channel detection mechanism and the second channel detection mechanism use the parameter information of the first channel detection mechanism, so that the first channel detection mechanism and the second channel detection mechanism have equal downlink channel preemption probability, so that the first channel detection mechanism and the first channel detection mechanism
  • the two-channel detection mechanism fairly contends the downlink channel; of course, the first channel detection mechanism and the second channel detection mechanism may be adjusted to use respective parameter information respectively, so that the LBT mechanism for transmitting the DRS has a higher capability of preempting the channel.
  • the adjusting method is applicable to a downlink channel on an unlicensed frequency band on the LTE system; and the channel detecting mechanism includes a listening and speaking mechanism.
  • a channel occupancy probability adjustment system including: a first adjustment unit, configured to adjust a channel corresponding to the to-be-sent data according to a data type of the to-be-sent data of the device having the base station function The parameter information of the detection mechanism; the second adjusting unit, according to the adjusted parameter information, adjusting a probability that the to-be-sent data occupies a downlink channel, where the data type of the data to be sent includes: finding a reference signal and/or Downstream data.
  • the parameter information of the LBT mechanism ie, the channel detection mechanism
  • the parameter information of the LBT mechanism is adjusted according to the to-be-sent data of the device having the function of the base station, that is, whether the data to be transmitted is the discovery reference signal or the downlink data, so that the discovery is found.
  • the LBT mechanism corresponding to the reference signal and the downlink data uses the same or different parameter information to adjust the probability that the data to be transmitted occupies the downlink channel, so that the ability of the LBT mechanism for transmitting the DRS to preempt the channel is improved, so that the DRS signal is transmitted.
  • the LBT mechanism is more likely to preempt the channel than the LBT mechanism that sends the normal downlink data, or at least has the same channel preemption probability as the LBT mechanism that sends the normal downlink data, so that the discovery reference signal is more likely to occupy the channel, or at least with the normal downlink data.
  • the LBT mechanism for sending ordinary downlink data can LBT mechanism is based frame structure may be based on the load LBT mechanism.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the first adjusting unit is specifically configured to: adjust at least one of the following parameters or a combination thereof according to the data type of the data to be sent of the device with the function of the base station: the data to be sent.
  • the contention window length of the extended channel detection time used, and the signal strength threshold used by the channel detection mechanism corresponding to the data to be transmitted to determine whether the downlink channel is idle.
  • the LBT mechanism for transmitting the DRS can improve the ability to preempt the channel, which is easier than the LBT mechanism for transmitting the normal downlink data. Preempt the channel, so that the discovery reference The signal is more likely to occupy the channel, or at least has the same channel occupancy probability as the normal downlink data, thereby reducing the power consumption consumed by the terminal measurement reference signal DRS, performing cell identification, downlink synchronization, and time-frequency estimation, and improving accuracy.
  • the channel detection mechanism includes: a first channel detection mechanism and a second channel detection mechanism, where when the discovery reference signal is sent, the first channel detection mechanism is used to detect the a downlink channel, when the downlink data is sent, detecting the downlink channel by using the second channel detection mechanism.
  • the downlink channel is detected by using the first channel detection mechanism and the second channel detection mechanism, respectively, and the first channel detection mechanism and the second channel detection mechanism may be the same or different.
  • the first channel detection mechanism and the second channel detection mechanism may be the same or different.
  • it may be based on a frame structure (or load-based) LBT mechanism, but the parameters are different, and may also be a frame structure-based LBT mechanism and a load-based LBT mechanism.
  • the first adjustment unit is further configured to: adjust parameter information of the channel detection mechanism corresponding to the data to be sent by using the following process, so that the discovery reference signal occupies the downlink
  • the first contention window length of the extended channel detection time used by the mechanism is adjusted to be less than or equal to the second contention window length of the extended channel detection time used by the second channel detection mechanism; and/or the first channel detection is The first signal strength threshold used by the mechanism to determine whether the downlink channel is idle is adjusted to be greater than or equal to the first Channel detection mechanism used for determining said downlink signal strength threshold if the
  • a device having a base station function transmits a discovery reference signal or/or downlink data
  • the parameter information of the first channel detection mechanism and the second channel detection mechanism according to the foregoing manner, it can ensure strong power.
  • Improve the ability of the LBT mechanism that sends the DRS to preempt the channel so that it is easier to preempt the channel than the LBT mechanism that sends the normal downlink data, or at least has the same channel preemption probability as the LBT mechanism that sends the normal downlink data, so as to reduce the end
  • the terminal measures the reference signal DRS, performs power consumption during cell identification, downlink synchronization, and time-frequency estimation, and improves accuracy.
  • the specific process is: adjusting the CCA detection time length (ie, granularity) of the LBT mechanism that sends the DRS to be less than or equal to the CCA detection time length of the LBT mechanism for transmitting data.
  • the CCA detection time length in the LBT mechanism for transmitting data is 20 us (the detection time length is the minimum detection time granularity of the CCA specified in the unlicensed spectrum rule)
  • the CCA detection time in the LBT mechanism for transmitting the reference signal DRS The length of the CCA detection time in the LBT mechanism for transmitting data is 30 us, and the length of the CCA detection time in the LBT mechanism for transmitting the reference signal DRS may be 20 us.
  • the maximum channel occupation time of the LBT mechanism for transmitting the reference signal DRS is adjusted to be less than or equal to the maximum channel occupation time of the LBT mechanism for transmitting data, for example, when the maximum channel occupation time in the LBT mechanism for transmitting data is 4 ms, the reference signal DRS is transmitted.
  • the maximum channel occupation time in the LBT mechanism can be 3 ms;
  • the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the reference signal DRS is smaller than the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the data, thereby
  • the probability that the random number N takes a smaller value is high.
  • the q value of the LBT mechanism for transmitting the reference signal DRS is 4, the q value in the LBT mechanism for transmitting data can be 16 to 32.
  • the random number N of the LBT mechanism for transmitting the reference signal DRS is taken from 1 to q, the value is small, which means that the DRS can be transmitted when the channel is idle when less CCA detection time is detected;
  • the DRS can be sent.
  • the downlink data can be sent only when the channel interference is small.
  • the LBT mechanism for transmitting the normal downlink data is more likely to preempt the channel than the LBT mechanism for transmitting the DRS
  • the LBT mechanism for transmitting the normal downlink data and the LBT mechanism for transmitting the DRS may be adjusted in a completely opposite manner to the foregoing control manner.
  • Various parameter information may be adjusted in a completely opposite manner to the foregoing control manner.
  • the method further includes: a first setting unit that sets a first sending period for the discovery reference signal in a frame structure; and a second setting unit, in the first sending week Providing at least one second transmission period for the discovery reference signal; and a third setting unit, configured to set a transmission window at the same position in each of the at least one of the second transmission periods, and At least one channel detection time for continuously detecting whether the downlink channel is idle is set in a transmission window in each of the second transmission periods in order to detect whether the downlink channel is idle.
  • a larger first transmission period is set for the discovery reference signal in the frame structure, and at least one smaller second transmission period is set in the first transmission period, and in each second transmission A transmission window is set in the same position in the cycle, so that it is convenient to set at least one channel detection time in each transmission window that can continuously detect whether the downlink channel is idle and set CCA in each channel detection time in at least one channel detection time. Therefore, the CCA can be used to detect whether the downlink channel is idle during each channel detection time to transmit the DRS signal when idle.
  • the first sending period is greater than the first preset sending period, where the first preset sending period is equal to the small cell in the serving cell where the device with the base station function is located is closed. Transmitting a minimum period value of the discovery reference signal, and the first transmission period is equal to a period value other than the minimum period value used when the discovery reference signal is sent when the small cell is off;
  • the second transmission period is smaller than the second preset transmission period, where the second preset transmission period is equal to a maximum period value that occurs in the measurement interval in the inter-frequency measurement, and the second transmission period is equal to the maximum frequency in the inter-frequency measurement Other period values occurring at the measurement interval other than the period value, and the length of the transmission window is equal to the length of the measurement interval in the inter-frequency measurement.
  • the sending period is greater than the first preset sending period, which can ensure that the first sending period is a larger value in the traditional DRS sending period, for example, 160 ms, and further, by making the second sending period equal to the maximum period value (such as 80 ms) in the inter-frequency measurement.
  • Other period values occurring outside the measurement interval, and making the second transmission period smaller than the second predetermined transmission period, can ensure that the second transmission period is a smaller value (for example, 40 ms) of the period in which the measurement interval occurs in the inter-frequency measurement ), which makes it easier to detect whether the downlink channel is idle or not, so that it can be sent in time when idle is detected.
  • DRS at the same time, can improve the accuracy of channel measurement results, and further improve the DRS occupies the channel, preventing the timing of transmitting DRS from being missed due to infrequent downlink channel detection when transmitting DRS.
  • the method further includes: a first sending unit, detecting that the downlink channel is idle and any one of the second when any channel detecting time in a sending window of any second sending period
  • the remaining time in the transmission window of the transmission period is greater than or equal to the maximum channel occupation time of the first channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time
  • sending the discovery reference signal in a remaining time of the sending window of any one of the second sending periods, wherein any one of the second sending periods is any one of the first sending periods.
  • a discovery reference may be sent in the remaining time of the transmission window of any second transmission period.
  • the method further includes: the first processing unit, when the downlink channel is idle, is not detected in the at least one channel detection time in the transmission window of any one of the second transmission periods, and If the following conditions are met, stopping setting the other channel detection time in the transmission window of any of the second transmission periods, and in the transmission window of the other second transmission period adjacent to any of the second transmission periods Setting at least one channel detection time: at least one second transmission period is set in the first transmission period, and a remaining time in a transmission window of any one of the second transmission periods is smaller than a maximum channel of the first channel detection mechanism Occupying time; and/or at least one second transmission period is set in the first transmission period, and a remaining time in a transmission window of any one of the second transmission periods is smaller than a maximum channel occupation of the first channel detection mechanism The sum of time and terminal receiver frequency switching time.
  • the downlink channel idle is not detected in at least one channel detection time in the transmission window of any of the second transmission periods, if the remaining time in the transmission window of any second transmission period is less than the The maximum channel occupancy time of a channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time may not be set in the transmission window of any of the second transmission periods.
  • Other channel detection time that is, no CCA detection is required, because even if the following CCA detects that the channel is idle during other channel detection times, the complete DRS cannot be transmitted, and the second transmission period can be sequentially followed by any of the second transmission periods.
  • At least one channel detection time is set in a transmission window of another adjacent second transmission period to detect whether the downlink channel is idle using the CCA during the at least one channel detection time.
  • the method further includes: a second processing unit, when the discovery reference signal has been sent in a transmission window in any of the second transmission periods, in the first transmission period Release the downlink channel in the remaining time, stop transmitting the discovery reference signal, and stop at the remaining time in the first transmission period when at least one second transmission period is set in the first transmission period A channel detection time for transmitting the discovery reference signal is set in a transmission window of the remaining second transmission period for detecting whether the downlink channel is idle.
  • the downlink channel when the discovery reference signal has been sent in the transmission window in any second transmission period, the downlink channel may be released in the remaining time in the first transmission period, so that the discovery reference signal is no longer transmitted, and Stop setting the channel detection time for detecting whether the downlink channel is idle to transmit the discovery reference signal in the transmission window of the remaining second transmission period, so as to ensure that the DRS is transmitted at most once in the first transmission period, and the DRS signal is prevented from being transmitted too much. Frequently, occupying the downlink channel for too long affects the normal transmission of downlink data.
  • the method further includes: determining, by the determining unit, when the downlink channel is idle in any channel detection time of any second transmission period, determining whether the any channel detection time is the a channel detection time before the Nth channel detection time in the transmission window of any second transmission period; the second transmitting unit, when the determination result is YES, does not transmit the discovery reference signal, and reserves a terminal receiver for the terminal Frequency switching time, otherwise, sending the discovery reference signal, where the terminal receiver frequency switching time includes: (N-1) The sum of times of channel detection time, where N is a positive integer, and any of the second transmission periods is any second one of the first transmission periods.
  • the downlink channel idle is detected in any channel detection time of any second transmission period
  • any of the channel detection times is the Nth in the transmission window of any of the second transmission periods
  • the channel detection time before the channel detection time is not sent the discovery reference signal, so that the channel detection time before the Nth channel detection time is conveniently reserved to the terminal as the terminal receiver frequency switching time; If the channel detection time is the Nth channel detection time or the channel detection time after the Nth channel detection time, it can be said that the terminal receiver frequency switching time has been reserved for the terminal, and the discovery reference signal can be immediately transmitted.
  • the first adjusting unit is further configured to: when detecting whether the downlink channel is idle in any channel detection time in a transmission window of any second transmission period, if The discovery reference signal and the downlink data are simultaneously sent in a transmission window of any second transmission period, and the first channel detection time granularity is adjusted to be less than or equal to the second channel detection time granularity; and/or The maximum channel occupation time of the first channel detection mechanism is adjusted to be less than or equal to a maximum channel occupation time of the second channel detection mechanism; and/or the first contention window number is adjusted to be less than or equal to the second The number of contention windows; and/or adjusting the first signal strength threshold to be greater than or equal to the second signal strength threshold; or the first adjusting unit is further configured to: adjust the second channel detection time granularity to Greater than or equal to the first channel detection time granularity; and/or adjusting a maximum channel occupation time of the second channel detection mechanism to be greater than or equal to the first a maximum channel occupancy time of a
  • the parameter information of the first channel detection mechanism or the second channel detection mechanism may be adjusted, so that the first channel detection mechanism and the second channel detection mechanism both use the parameter information of the second channel detection mechanism, or the first Both the channel detection mechanism and the second channel detection mechanism use the parameter information of the first channel detection mechanism, so that the first channel detection mechanism and the second channel detection mechanism have equal downlink channel preemption probability, so that the first signal
  • the channel detection mechanism and the second channel detection mechanism compete for the downlink channel fairly; of course, the first channel detection mechanism and the second channel detection mechanism may also be adjusted to use respective parameter information, so that the LBT mechanism for transmitting the DRS has a higher
  • the ability to preempt the channel makes it easier to preempt the channel than the LBT mechanism that sends ordinary downlink data, so that the discovery reference signal is more likely to occupy the channel
  • the adjustment system is applicable to a downlink channel on an unlicensed frequency band on the LTE system; and the channel detection mechanism includes a listening and speaking mechanism.
  • Yet another aspect of the present invention is directed to an apparatus for a base station function, the apparatus comprising a communication bus, a transceiver, a memory, and a processor, wherein:
  • the communication bus is configured to implement connection communication between the transceiver device, the memory, and the processor;
  • the memory stores a set of program codes, and the processor calls the program code stored in the memory to perform the following operations:
  • the processor is configured to adjust parameter information of a channel detection mechanism corresponding to the to-be-sent data according to a data type of the to-be-transmitted data of the device with the base station function;
  • the processor is further configured to adjust, according to the adjusted parameter information, a probability that the to-be-sent data occupies a downlink channel, where the data type of the to-be-sent data includes: a discovery reference signal and/or downlink data.
  • the step of the processor adjusting the parameter information of the channel detection mechanism corresponding to the data to be sent according to the data type of the to-be-transmitted data of the device with the function of the base station includes:
  • the channel detection mechanism includes: a first channel detecting machine And a second channel detection mechanism, wherein when the transceiver is configured to send the discovery reference signal, the processor is configured to detect the downlink channel by using the first channel detection mechanism, when the transceiver is used to send The downlink processor is configured to detect the downlink channel by using the second channel detection mechanism.
  • the step of adjusting, by the processor, the parameter information of the channel detection mechanism corresponding to the data to be sent according to the data type of the data to be sent by the device having the function of the base station further includes:
  • the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data is adjusted by the following process, so that the probability that the discovery reference signal occupies the downlink channel is greater than or equal to the probability that the second channel detection mechanism occupies the downlink channel :
  • a first channel detection time granularity to be less than or equal to a second channel detection time granularity of the second channel detection mechanism
  • a first contention window length of the extended channel detection time to be less than or equal to a second contention window length of the extended channel detection time used by the second channel detection mechanism
  • a first signal strength threshold for determining whether the downlink channel is idle to be greater than or equal to a criterion used by the second channel detection mechanism to determine whether the downlink channel is idle Two signal strength thresholds.
  • the processor is further configured to:
  • the first sending period is greater than the first preset sending period
  • the first preset transmission period is equal to the minimum period value of the discovery reference signal when the small cell in the serving cell where the device with the base station function is located is off, and the first sending period is equal to the small a period value other than the minimum period value used when the discovery reference signal is transmitted when the cell is closed;
  • the second transmission period is smaller than the second preset transmission period, where the second preset transmission period is equal to a maximum period value that occurs in the measurement interval in the inter-frequency measurement, and the second transmission period is equal to the inter-frequency measurement.
  • Other period values occurring at the measurement interval other than the maximum period value, and the length of the transmission window is equal to the length of the measurement interval in the inter-frequency measurement.
  • the processor further performs the following steps:
  • the processor further performs the following steps:
  • At least one second transmission period is set in the first transmission period
  • the remaining time in the transmission window of any one of the second transmission periods is smaller than the maximum channel occupation time of the first channel detection mechanism
  • At least one second transmission period is set in the first transmission period
  • the remaining time in the transmission window of any of the second transmission periods is smaller than the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time.
  • the processor further performs the following steps:
  • the transmitting device has sent the discovery in a transmission window in any of the second transmission periods When the signal is referenced, releasing the downlink channel in a remaining time in the first transmission period, stopping the transceiver from transmitting the discovery reference signal, and when at least one second transmission period is set in the first transmission period And stopping, in the transmission window of the remaining other second transmission periods in the remaining time in the first transmission period, setting a channel detection time for detecting whether the downlink channel is idle for transmitting the discovery reference signal.
  • the processor further performs the following steps:
  • any channel detection time is the Nth channel in the transmission window of any of the second transmission periods.
  • Channel detection time before detection time is the Nth channel in the transmission window of any of the second transmission periods.
  • the discovery reference signal is not sent, and the terminal receiver frequency switching time is reserved for the terminal; otherwise, the discovery reference signal is sent, where the terminal receiver frequency switching time includes: N-1) the sum of the times of the channel detection times,
  • N is a positive integer
  • any one of the second transmission periods is any one of the first transmission periods.
  • the step of the processor adjusting the parameter information of the channel detection mechanism corresponding to the data to be sent according to the data type of the to-be-transmitted data of the device with the function of the base station includes:
  • the processor according to the data type of the data to be sent of the device with the function of the base station, The step of adjusting the parameter information of the channel detection mechanism corresponding to the data to be sent further includes:
  • the second signal strength threshold is adjusted to be less than or equal to the first signal strength threshold.
  • the device is applicable to a downlink channel on an unlicensed frequency band on an LTE system.
  • the LBT mechanism for transmitting the DRS can have a higher capability of preempting the channel, making it easier to transmit the LBT mechanism of the normal downlink data. Preempting the channel or at least has the same channel preemption probability as the LBT mechanism for transmitting the normal downlink data, so as to reduce the power consumption consumed by the terminal to measure the reference signal DRS, perform cell identification, downlink synchronization, and time-frequency estimation, and improve accuracy.
  • the LBT mechanism for transmitting the DRS can be used to preempt the channel, so that it is easier to preempt the channel than the LBT mechanism that sends the normal downlink data, or at least has the same channel preemption probability as the LBT mechanism that sends the normal downlink data.
  • the LBT mechanism for transmitting the DRS can be used to preempt the channel, so that it is easier to preempt the channel than the LBT mechanism that sends the normal downlink data, or at least has the same channel preemption probability as the LBT mechanism that sends the normal downlink data.
  • Figure 1 shows a schematic diagram of two modes of operation of an unlicensed spectrum
  • FIG. 2 is a schematic diagram showing an interference avoidance rule of a Wi-Fi system
  • FIG. 3 is a schematic structural diagram of a FBE-based frame structure in the related art
  • FIG. 4 is a schematic structural diagram of an LBE-based LBT frame structure in the related art
  • FIG. 5 is a schematic flowchart diagram of a method for adjusting a channel occupancy probability according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an adjustment system of channel occupancy probability according to an embodiment of the present invention.
  • FIG. 7 is a block diagram showing the structure of a device having a base station function according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram showing a setting position of a transmission window in a first channel detecting mechanism according to an embodiment of the present invention.
  • Figure 9 shows a schematic diagram of transmitting a discovery reference signal in accordance with one embodiment of the present invention.
  • Figure 10 shows a block diagram of a device in accordance with one embodiment of the present invention.
  • FIG. 5 is a flow chart showing a method for adjusting a channel occupancy probability according to an embodiment of the present invention.
  • a method for adjusting a channel occupancy probability includes: Step 502: Adjust the data to be sent according to a data type of data to be sent of the device with a base station function. Parameter information of the corresponding channel detection mechanism; Step 504, adjusting, according to the adjusted parameter information, a probability that the to-be-sent data occupies a downlink channel, where the data type of the to-be-sent data includes: a discovery reference signal and / or downlink data.
  • the parameter information of the LBT mechanism ie, the channel detection mechanism
  • the LBT mechanism corresponding to the reference signal and the downlink data is used to use the same or different parameter information, so as to adjust the probability that the data to be transmitted occupies the downlink channel, so that the LBT mechanism for transmitting the DRS can preempt the channel.
  • the LBT mechanism for transmitting the DRS signal is more likely to preempt the channel than the LBT mechanism for transmitting the normal downlink data, or at least has the same channel preemption probability as the LBT mechanism for transmitting the normal downlink data, so that the discovery reference signal is more likely to occupy the channel or At least the same channel occupancy probability as the normal downlink data, thereby realizing timely transmission of the DRS signal, so as to reduce power consumption consumed by the terminal measurement reference signal DRS, performing cell identification, downlink synchronization, and time-frequency estimation, and improving accuracy, of course,
  • the LBT mechanism for transmitting the DRS and the LBT mechanism for transmitting the normal downlink data may be a frame structure based LBT mechanism or a load based LBT mechanism.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the parameter information of the channel detection mechanism corresponding to the data to be sent is adjusted according to the data type of the to-be-sent data of the device with the function of the base station
  • the method includes: according to the The data type of the data to be transmitted of the device functioning by the base station is adjusted by at least one parameter or a combination thereof: a channel detection time granularity of the channel detection mechanism corresponding to the data to be transmitted, and a channel detection mechanism corresponding to the to-be-sent data
  • the maximum channel occupation time, the contention window length of the extended channel detection time used when the device having the base station function transmits the data to be transmitted using the load-based channel detection mechanism, and the channel detection corresponding to the to-be-sent data A signal strength threshold used by the mechanism to determine whether the downlink channel is idle.
  • the LBT mechanism for transmitting the DRS can improve the ability to preempt the channel, which is easier than the LBT mechanism for transmitting the normal downlink data. Preempting the channel, so that the discovery reference signal is more likely to occupy the channel, or at least has the same channel occupancy probability as the normal downlink data, thereby reducing the power consumption consumed by the terminal measurement reference signal DRS, performing cell identification, downlink synchronization, and time-frequency estimation. To improve accuracy.
  • the channel detection mechanism includes: a first channel detection mechanism and a second channel detection mechanism, where when the discovery reference signal is sent, the first channel detection mechanism is used to detect the a downlink channel, when the downlink data is sent, detecting the downlink channel by using the second channel detection mechanism.
  • the first use A channel detection mechanism and a second channel detection mechanism detect the downlink channel
  • the first channel detection mechanism and the second channel detection mechanism may be the same or different, for example, may be based on a frame structure (or load based) LBT mechanism, but The parameters are different, and can also be a frame structure based LBT mechanism and a load based LBT mechanism.
  • the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data is adjusted by the following process, so that the probability that the discovery reference signal occupies the downlink channel is greater than or equal to the second channel.
  • the probability of the detection mechanism occupying the downlink channel : adjusting a first channel detection time granularity of the first channel detection mechanism to be less than or equal to a second channel detection time granularity of the second channel detection mechanism; and/or
  • the maximum channel occupancy time of the first channel detection mechanism is adjusted to be less than or equal to the maximum channel occupation time of the second channel detection mechanism; and/or the first of the extended channel detection time used by the first channel detection mechanism
  • the contention window length is adjusted to be less than or equal to a second contention window length of the extended channel detection time used by the second channel detection mechanism; and/or used by the first channel detection mechanism to determine whether the downlink channel is used
  • the idle first signal strength threshold is adjusted to be greater than or equal to that used by the second channel detection mechanism for determining Said second downlink signal strength threshold
  • a device having a base station function transmits a discovery reference signal or/or downlink data
  • the parameter information of the first channel detection mechanism and the second channel detection mechanism according to the foregoing manner, it can ensure strong power.
  • Improve the ability of the LBT mechanism that sends the DRS to preempt the channel so that it is easier to preempt the channel than the LBT mechanism that sends the normal downlink data, or at least has the same channel preemption probability as the LBT mechanism that sends the normal downlink data, so as to reduce the terminal measurement reference.
  • the power consumption consumed by the signal DRS, cell identification, downlink synchronization, and time-frequency estimation improves accuracy.
  • the specific process is: adjusting the CCA detection time length (ie, granularity) of the LBT mechanism that sends the DRS to be less than or equal to the CCA detection time length of the LBT mechanism for transmitting data.
  • the CCA detection time length in the LBT mechanism for transmitting data is 20 us (the detection time length is the minimum detection time granularity of the CCA specified in the unlicensed spectrum rule)
  • the CCA detection time in the LBT mechanism for transmitting the reference signal DRS The length of the CCA detection time in the LBT mechanism for transmitting data is 30 us, and the length of the CCA detection time in the LBT mechanism for transmitting the reference signal DRS may be 20 us.
  • the maximum channel occupation time of the LBT mechanism for transmitting the reference signal DRS is adjusted to be less than or equal to the maximum channel occupation time of the LBT mechanism for transmitting data, for example, when the maximum channel occupation time in the LBT mechanism for transmitting data is 4 ms, the reference signal DRS is transmitted.
  • the maximum channel occupation time in the LBT mechanism can be 3 ms;
  • the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the reference signal DRS is smaller than the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the data, thereby
  • the probability that the random number N takes a smaller value is high.
  • the q value of the LBT mechanism for transmitting the reference signal DRS is 4, the q value in the LBT mechanism for transmitting data can be 16 to 32.
  • the random number N of the LBT mechanism for transmitting the reference signal DRS is taken from 1 to q, the value is small, which means that the DRS can be transmitted when the channel is idle when less CCA detection time is detected;
  • the DRS can be sent.
  • the downlink data can be sent only when the channel interference is small.
  • the LBT mechanism for transmitting the normal downlink data is more likely to preempt the channel than the LBT mechanism for transmitting the DRS
  • the LBT mechanism for transmitting the normal downlink data and the LBT mechanism for transmitting the DRS may be adjusted in a completely opposite manner to the foregoing control manner.
  • Various parameter information may be adjusted in a completely opposite manner to the foregoing control manner.
  • the method further includes: setting a first transmission period for the discovery reference signal in a frame structure; and setting at least one second transmission period for the discovery reference signal in the first transmission period; Setting a transmission window at the same position in each of the at least one of the second transmission periods, and sequentially setting them in the transmission window in each of the second transmission periods in order And detecting at least one channel detection time that the downlink channel is idle, for detecting whether the downlink channel is idle.
  • a larger first transmission period is set for the discovery reference signal in the frame structure, and at least one smaller second transmission period is set in the first transmission period, and in each second transmission A transmission window is set in the same position in the cycle, so that it is convenient to set at least one channel detection time in each transmission window that can continuously detect whether the downlink channel is idle and
  • the CCA is set for each of the at least one channel detection time, so that the CCA can be used to detect whether the downlink channel is idle during each channel detection time to transmit the DRS signal when idle.
  • the first sending period is greater than the first preset sending period, where the first preset sending period is equal to the small cell in the serving cell where the device with the base station function is located is closed. Transmitting a minimum period value of the discovery reference signal, and the first transmission period is equal to a period value other than the minimum period value used when the discovery reference signal is sent when the small cell is off;
  • the second transmission period is smaller than the second preset transmission period, where the second preset transmission period is equal to a maximum period value that occurs in the measurement interval in the inter-frequency measurement, and the second transmission period is equal to the maximum frequency in the inter-frequency measurement Other period values occurring at the measurement interval other than the period value, and the length of the transmission window is equal to the length of the measurement interval in the inter-frequency measurement.
  • the sending period is greater than the first preset sending period, which can ensure that the first sending period is a larger value in the traditional DRS sending period, for example, 160 ms, and further, by making the second sending period equal to the maximum period value (such as 80 ms) in the inter-frequency measurement.
  • Other period values occurring outside the measurement interval, and making the second transmission period smaller than the second predetermined transmission period, can ensure that the second transmission period is a smaller value (for example, 40 ms) of the period in which the measurement interval occurs in the inter-frequency measurement In this way, it is convenient to detect whether the downlink channel is idle or not, so that when the idle is detected, the DRS can be sent in time, and the accuracy of the channel measurement result can be improved, and the capability of the DRS to occupy the channel can be further improved to prevent the DRS from being transmitted. Because the downlink channel detection is infrequent, the timing of transmitting the DRS is missed.
  • the method further includes: detecting, when any of the channel detection times in any one of the second transmission periods, that the downlink channel is idle, and the transmission window of any one of the second transmission periods When the remaining time is greater than or equal to the maximum channel occupation time of the first channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time, Sending the discovery reference signal in a remaining time of a transmission window of a second transmission period, wherein any one of the second transmission periods is the first Any of the second transmission periods in the transmission period.
  • a discovery reference may be sent in the remaining time of the transmission window of any second transmission period.
  • the method further includes: when the downlink channel idle is still not detected in at least one channel detection time in the transmission window of any one of the second transmission periods, and the following conditions are met And stopping to set another channel detection time in the transmission window of any of the second transmission periods, and setting at least one channel detection in a transmission window of another second transmission period adjacent to any one of the second transmission periods Time: at least one second sending period is set in the first sending period, and a remaining time in a sending window of any one of the second sending periods is smaller than a maximum channel occupying time of the first channel detecting mechanism; and Or at least one second sending period is set in the first sending period, and a remaining time in a sending window of any one of the second sending periods is smaller than a maximum channel occupying time of the first channel detecting mechanism and a terminal receiver The sum of the frequency switching times.
  • the downlink channel idle is not detected in at least one channel detection time in the transmission window of any of the second transmission periods, if the remaining time in the transmission window of any second transmission period is less than the The maximum channel occupancy time of a channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time may not be set in the transmission window of any of the second transmission periods.
  • Other channel detection time that is, no CCA detection is required, because even if the following CCA detects that the channel is idle during other channel detection times, the complete DRS cannot be transmitted, and the second transmission period can be sequentially followed by any of the second transmission periods.
  • the CCA is used to detect whether the downlink channel is idle during the at least one channel detection time.
  • the method further includes: when the discovery reference signal is sent in a transmission window in any of the second transmission periods, releasing the remaining time in the first transmission period Determining the downlink channel, stopping transmitting the discovery reference signal, and stopping the remaining other second transmissions in the remaining time in the first transmission period when at least one second transmission period is set in the first transmission period A channel detection time for transmitting the discovery reference signal is set in a periodic transmission window for detecting whether the downlink channel is idle.
  • the downlink channel when the discovery reference signal has been sent in the transmission window in any second transmission period, the downlink channel may be released in the remaining time in the first transmission period, so that the discovery reference signal is no longer transmitted, and Stop setting the channel detection time for detecting whether the downlink channel is idle to transmit the discovery reference signal in the transmission window of the remaining second transmission period, so as to ensure that the DRS is transmitted at most once in the first transmission period, and the DRS signal is prevented from being transmitted too much. Frequently, occupying the downlink channel for too long affects the normal transmission of downlink data.
  • the method further includes: determining, when the downlink channel is idle in any channel detection time of any second transmission period, determining whether the any channel detection time is any one of the foregoing The channel detection time before the Nth channel detection time in the transmission window of the second transmission period; when the determination result is yes, the discovery reference signal is not sent, and the terminal receiver frequency switching time is reserved for the terminal; otherwise, the transmission is performed.
  • the discovery reference signal wherein the terminal receiver frequency switching time comprises: (N-1) sums of times of the channel detection time, where N is a positive integer, and any second transmission period Is any one of the first transmission periods of the first transmission period.
  • the downlink channel idle is detected in any channel detection time of any second transmission period
  • any of the channel detection times is the Nth in the transmission window of any of the second transmission periods
  • the channel detection time before the channel detection time is not sent the discovery reference signal, so that the channel detection time before the Nth channel detection time is conveniently reserved to the terminal as the terminal receiver frequency switching time; If the channel detection time is the Nth channel detection time or the channel detection time after the Nth channel detection time, it can be said that the terminal receiver frequency switching time has been reserved for the terminal, and the discovery reference signal can be immediately transmitted.
  • the adjusting the to-be-sent includes: adjusting the first channel detection time granularity to be less than or equal to the second channel detection time granularity; and/or the first channel detection mechanism
  • the maximum channel occupancy time is adjusted to be less than or equal to the maximum channel occupancy time of the second channel detection mechanism; and/or the first contention window number is adjusted to be less than or equal to the second contention window number; and/or
  • the process of adjusting the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data the method further includes: using the second channel The detection time granularity is adjusted to be greater than or equal to the first channel detection time granularity; and/or the maximum signal of the second channel detection mechanism
  • the channel occupancy time is
  • the parameter information of the first channel detection mechanism or the second channel detection mechanism may be adjusted, so that the first channel detection mechanism and the second channel detection mechanism both use the parameter information of the second channel detection mechanism, or the first Both the channel detection mechanism and the second channel detection mechanism use the parameter information of the first channel detection mechanism, so that the first channel detection mechanism and the second channel detection mechanism have equal downlink channel preemption probability, so that the first channel detection mechanism and the first channel detection mechanism
  • the two-channel detection mechanism fairly contends the downlink channel; of course, the first channel detection mechanism and the second channel detection mechanism may be adjusted to use respective parameter information respectively, so that the LBT mechanism for transmitting the DRS has a higher capability of preempting the channel.
  • the adjusting method is applicable to a downlink channel on an unlicensed frequency band on the LTE system; and the channel detecting mechanism includes a listening and speaking mechanism.
  • FIG. 6 is a block diagram showing the structure of an adjustment system for channel occupancy probability according to an embodiment of the present invention.
  • an adjustment system 600 for channel occupancy probability includes: a first adjustment unit 602, which adjusts according to a data type of data to be transmitted of a device having a base station function. Determining parameter information of the channel detection mechanism corresponding to the data to be sent; the second adjusting unit 604, according to the adjusted parameter information, adjusting a probability that the to-be-sent data occupies a downlink channel, where the data of the to-be-sent data Types include: discovery reference signals and/or downlink data.
  • the parameter information of the LBT mechanism ie, the channel detection mechanism
  • the parameter information of the LBT mechanism is adjusted according to the to-be-sent data of the device having the function of the base station, that is, whether the data to be transmitted is the discovery reference signal or the downlink data, so that the discovery is found.
  • the LBT mechanism corresponding to the reference signal and the downlink data uses the same or different parameter information to adjust the probability that the data to be transmitted occupies the downlink channel, so that the ability of the LBT mechanism for transmitting the DRS to preempt the channel is improved, so that the DRS signal is transmitted.
  • the LBT mechanism is more likely to preempt the channel than the LBT mechanism that sends the normal downlink data, or at least has the same channel occupation rate as the LBT mechanism that transmits the normal downlink data, so that the discovery reference signal is more likely to occupy the channel or at least with the normal downlink data.
  • the same channel occupies the probability, so as to realize the timely transmission of the DRS signal, so as to reduce the power consumption consumed by the terminal measurement reference signal DRS, cell identification, downlink synchronization, time-frequency estimation, and improve the accuracy, of course, the LBT mechanism for transmitting the DRS and
  • the LBT mechanism for sending ordinary downlink data can LBT mechanism based frame structure may be based on the load LBT mechanism.
  • the device having the function of the base station includes a base station, a micro cell base station implemented by a communication device (such as a smart phone, etc.), and the like.
  • the first adjusting unit 602 is specifically configured to: adjust at least one of the following parameters or a combination thereof according to the data type of the data to be sent of the device with the function of the base station: the to-be-sent
  • the contention window length of the extended channel detection time used in the data, and the signal strength threshold used by the channel detection mechanism corresponding to the data to be transmitted to determine whether the downlink channel is idle.
  • the LBT mechanism for transmitting the DRS can improve the ability to preempt the channel, which is easier than the LBT mechanism for transmitting the normal downlink data. Preempting the channel, or at least having the same channel occupancy probability as the normal downlink data, makes the discovery reference signal more likely to occupy the channel, thereby reducing the power consumption consumed by the terminal to measure the reference signal DRS, perform cell identification, downlink synchronization, and time-frequency estimation. Improve accuracy.
  • the channel detection mechanism includes: a first channel detection mechanism and a second channel detection mechanism, where when the discovery reference signal is sent, the first channel detection mechanism is used to detect the a downlink channel, when the downlink data is sent, detecting the downlink channel by using the second channel detection mechanism.
  • the downlink channel is detected by using the first channel detection mechanism and the second channel detection mechanism, respectively, and the first channel detection mechanism and the second channel detection mechanism may be the same or different.
  • the first channel detection mechanism and the second channel detection mechanism may be the same or different.
  • it may be based on a frame structure (or load-based) LBT mechanism, but the parameters are different, and may also be a frame structure-based LBT mechanism and a load-based LBT mechanism.
  • the first adjustment unit 602 is further configured to: adjust parameter information of the channel detection mechanism corresponding to the data to be sent by using the following process, so that the discovery reference signal occupies the The probability of the downlink channel is greater than or equal to the probability that the second channel detection mechanism occupies the downlink channel: the first channel detection time granularity of the first channel detection mechanism is adjusted to be less than or equal to the second channel detection mechanism.
  • the second channel detects a time granularity; and/or adjusts a maximum channel occupancy time of the first channel detection mechanism to be less than or equal to a maximum channel occupation time of the second channel detection mechanism; and/or the first channel
  • the first contention window length of the extended channel detection time used by the detection mechanism is adjusted to be less than or equal to the second contention window length of the extended channel detection time used by the second channel detection mechanism; and/or the first channel is to be
  • the first signal strength threshold used by the detection mechanism to determine whether the downlink channel is idle is adjusted to be greater than or equal to the Two channel detection mechanism used for determining said downlink signal strength threshold if the second channel is idle.
  • the adjustment of the parameter information ensures that the LBT mechanism for transmitting the DRS can be effectively enhanced to preempt the channel, so that it is easier to preempt the channel than the LBT mechanism for transmitting the normal downlink data, or at least the same as the LBT mechanism for transmitting the normal downlink data.
  • the channel preemption probability is used to reduce the power consumption consumed by the terminal measurement reference signal DRS, cell identification, downlink synchronization, and time-frequency estimation, thereby improving accuracy.
  • the specific process is: adjusting the CCA detection time length (ie, granularity) of the LBT mechanism that sends the DRS to be less than or equal to the CCA detection time length of the LBT mechanism for transmitting data.
  • the CCA detection time length in the LBT mechanism for transmitting data is 20 us (the detection time length is the minimum detection time granularity of the CCA specified in the unlicensed spectrum rule)
  • the CCA detection time in the LBT mechanism for transmitting the reference signal DRS The length of the CCA detection time in the LBT mechanism for transmitting data is 30 us, and the length of the CCA detection time in the LBT mechanism for transmitting the reference signal DRS may be 20 us.
  • the maximum channel occupation time of the LBT mechanism for transmitting the reference signal DRS is adjusted to be less than or equal to the maximum channel occupation time of the LBT mechanism for transmitting data, for example, when the maximum channel occupation time in the LBT mechanism for transmitting data is 4 ms, the reference signal DRS is transmitted.
  • the maximum channel occupation time in the LBT mechanism can be 3 ms;
  • the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the reference signal DRS is smaller than the contention window length (ie, q value) of the extended channel detection time of the LBT mechanism transmitting the data, thereby
  • the probability that the random number N takes a smaller value is high.
  • the q value of the LBT mechanism for transmitting the reference signal DRS is 4, the q value in the LBT mechanism for transmitting data can be 16 to 32.
  • the random number N of the LBT mechanism for transmitting the reference signal DRS is taken from 1 to q, the value is small, which means that the DRS can be transmitted when the channel is idle when less CCA detection time is detected;
  • the method further includes: a first setting unit 606, in the frame structure, setting a first sending period for the discovery reference signal; and a second setting unit 608, in the first sending period,
  • the discovery reference signal sets at least one second transmission period;
  • the third setting unit 610 sets a transmission window at the same position in each of the at least one of the second transmission periods, and sequentially At least one channel detection time for continuously detecting whether the downlink channel is idle is set in a transmission window in each of the second transmission periods, for detecting whether the downlink channel is idle.
  • a larger first transmission period is set for the discovery reference signal in the frame structure, and at least one smaller second transmission period is set in the first transmission period, and in each second transmission A transmission window is set in the same position in the cycle, so that it is convenient to set at least one channel detection time in each transmission window that can continuously detect whether the downlink channel is idle and set CCA in each channel detection time in at least one channel detection time. Therefore, the CCA can be used to detect whether the downlink channel is idle during each channel detection time to transmit the DRS signal when idle.
  • the first sending period is greater than the first preset sending period, where the first preset sending period is equal to the small cell in the serving cell where the device with the base station function is located is closed. Transmitting a minimum period value of the discovery reference signal, and the first transmission period is equal to a period value other than the minimum period value used when the discovery reference signal is sent when the small cell is off;
  • the second transmission period is smaller than the second preset transmission period, where the second preset transmission period is equal to a maximum period value that occurs in the measurement interval in the inter-frequency measurement, and the second transmission period is equal to the maximum frequency in the inter-frequency measurement Other period values occurring at the measurement interval other than the period value, and the length of the transmission window is equal to the length of the measurement interval in the inter-frequency measurement.
  • the sending period is greater than the first preset sending period, which can ensure that the first sending period is a larger value in the traditional DRS sending period, for example, 160 ms, and further, by making the second sending period equal to the maximum period value (such as 80 ms) in the inter-frequency measurement.
  • the period value is set, and the second sending period is smaller than the second preset sending period, so that the second sending period is a smaller value (such as 40 ms) of the period in which the measuring interval occurs in the inter-frequency measurement, so that the downlink is detected more frequently.
  • the DRS can be sent in time, and the accuracy of the channel measurement result can be improved, and the capability of the DRS to occupy the channel is further improved, and the downlink channel detection is prevented from being infrequent when transmitting the DRS. causess the timing of sending DRS to be missed.
  • the method further includes: the first sending unit 612, detecting that the downlink channel is idle, and any one of the first time in any channel detection time in a transmission window of any second transmission period
  • the remaining time in the transmission window of the two transmission period is greater than or equal to the maximum channel occupation time of the first channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time. Transmitting, by the remaining time of the transmission window of any one of the second transmission periods, the discovery reference signal, where any one of the second transmission periods is any one of the first transmission periods .
  • a discovery reference may be sent in the remaining time of the transmission window of any second transmission period.
  • the method further includes: the first processing unit 614, when the downlink channel is idle, the at least one channel detection time in the transmission window of any one of the second transmission periods is not detected, and Stopping the transmission of the other channel detection time in the transmission window of any of the second transmission periods and the other second transmission period adjacent to any of the second transmission periods, if the following conditions are satisfied Setting at least one channel detection time: at least one second transmission period is set in the first transmission period, and any one of the second transmission periods The remaining time in the transmission window is smaller than the maximum channel occupation time of the first channel detection mechanism; and/or at least one second transmission period is set in the first transmission period, and any of the second transmission periods The remaining time in the transmission window is less than the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time.
  • the downlink channel idle is not detected in at least one channel detection time in the transmission window of any of the second transmission periods, if the remaining time in the transmission window of any second transmission period is less than the The maximum channel occupancy time of a channel detection mechanism and/or the sum of the maximum channel occupation time of the first channel detection mechanism and the terminal receiver frequency switching time may not be set in the transmission window of any of the second transmission periods.
  • Other channel detection time that is, no CCA detection is required, because even if the following CCA detects that the channel is idle during other channel detection times, the complete DRS cannot be transmitted, and the second transmission period can be sequentially followed by any of the second transmission periods.
  • At least one channel detection time is set in a transmission window of another adjacent second transmission period to detect whether the downlink channel is idle using the CCA during the at least one channel detection time.
  • the method further includes: a second processing unit 616, when the discovery reference signal has been sent in a transmission window in any of the second transmission periods, in the first transmission period Release the downlink channel for the remaining time, stop transmitting the discovery reference signal, and stop at the remaining time in the first transmission period when at least one second transmission period is set in the first transmission period A channel detection time for transmitting the discovery reference signal is set in a transmission window of the remaining other second transmission periods for detecting whether the downlink channel is idle.
  • the downlink channel when the discovery reference signal has been sent in the transmission window in any second transmission period, the downlink channel may be released in the remaining time in the first transmission period, so that the discovery reference signal is no longer transmitted, and Stop setting the channel detection time for detecting whether the downlink channel is idle to transmit the discovery reference signal in the transmission window of the remaining second transmission period, so as to ensure that the DRS is transmitted at most once in the first transmission period, and the DRS signal is prevented from being transmitted too much. Frequently, occupying the downlink channel for too long affects the normal transmission of downlink data.
  • the determining unit 618 is configured to determine whether the channel detection time is any when the downlink channel is idle during any channel detection time of any second transmission period.
  • the Nth channel in the transmission window of any second transmission period The channel detection time before the detection time; the second sending unit 620, when the determination result is yes, does not send the discovery reference signal, and reserves the terminal receiver frequency switching time for the terminal; otherwise, sends the discovery reference signal,
  • the terminal receiver frequency switching time includes: (N-1) sums of times of the channel detection times, where N is a positive integer, and any second transmission period is the first transmission. Any second transmission cycle in the cycle.
  • the downlink channel idle is detected in any channel detection time of any second transmission period
  • any of the channel detection times is the Nth in the transmission window of any of the second transmission periods
  • the channel detection time before the channel detection time is not sent the discovery reference signal, so that the channel detection time before the Nth channel detection time is conveniently reserved to the terminal as the terminal receiver frequency switching time; If the channel detection time is the Nth channel detection time or the channel detection time after the Nth channel detection time, it can be said that the terminal receiver frequency switching time has been reserved for the terminal, and the discovery reference signal can be immediately transmitted.
  • the first adjusting unit 602 is further configured to: when detecting whether the downlink channel is idle in any channel detecting time in a sending window of any second sending period, if The discovery channel and the downlink data are simultaneously sent in the transmission window of any second transmission period, and the first channel detection time granularity is adjusted to be less than or equal to the second channel detection time granularity; and/or Adjusting a maximum channel occupation time of the first channel detection mechanism to be less than or equal to a maximum channel occupation time of the second channel detection mechanism; and/or adjusting the first contention window number to be less than or equal to the first a second number of contention windows; and/or adjusting the first signal strength threshold to be greater than or equal to the second signal strength threshold; or the first adjusting unit 602 is further configured to: detect the second channel time granularity Adjusting to be greater than or equal to the first channel detection time granularity; and/or adjusting a maximum channel occupancy time of the second channel detection mechanism to be greater than or equal to Determining
  • the first channel detection mechanism or The parameter information of the second channel detection mechanism is adjusted, so that the first channel detection mechanism and the second channel detection mechanism both use the parameter information of the second channel detection mechanism, or the first channel detection mechanism and the second channel detection mechanism are used first.
  • the parameter information of the channel detection mechanism so that the first channel detection mechanism and the second channel detection mechanism have equal downlink channel preemption probability, so that the first channel detection mechanism and the second channel detection mechanism compete for the downlink channel fairly; Adjusting the first channel detection mechanism and the second channel detection mechanism to respectively use respective parameter information, so that the LBT mechanism for transmitting the DRS has a higher capability of preempting the channel, so that it is easier to preempt than the LBT mechanism for transmitting the normal downlink data.
  • the discovery reference signal is more likely to occupy the channel, thereby reducing the power consumption consumed by the terminal to measure the reference signal DRS, perform cell identification, downlink synchronization, and time-frequency estimation, and improve accuracy.
  • the adjustment system is applicable to a downlink channel on an unlicensed frequency band on the LTE system; and the channel detection mechanism includes a listening and speaking mechanism.
  • FIG. 7 shows a schematic structural diagram of a device having a base station function according to an embodiment of the present invention.
  • a device 700 with a base station function including: a channel occupancy probability adjustment system 600 according to any one of the above technical solutions.
  • the LBT mechanism for transmitting the DRS can have a higher preemption channel capability than the LBT mechanism for transmitting the normal downlink data. It is easier to preempt the channel or at least have the same channel preemption probability as the LBT mechanism that transmits the normal downlink data, so as to reduce the power consumption consumed by the terminal to measure the reference signal DRS, perform cell identification, downlink synchronization, and time-frequency estimation, and improve the accuracy.
  • FIG. 8 is a block diagram showing a setting position of a transmission window in a hearing-aid mechanism corresponding to a discovery reference signal according to an embodiment of the present invention
  • FIG. 9 shows a transmission discovery according to an embodiment of the present invention. Schematic diagram of the reference signal.
  • a period for transmitting a DRS is set in a frame structure of a LAA SCell (small cell) base station, which is referred to herein as a first period.
  • the first period needs to take a larger value in a conventional DRS transmission period, such as 160 ms, as shown in FIG.
  • the second period which is the period value of the measurement gap, such as 40 ms, as shown in FIG.
  • This 6ms window can be used to send DRS.
  • the 6ms here is actually the length of the measurement gap, and its length just covers the length of the traditional PSS, SSS, CRS (5ms) or the transmission length of the DRS (maximum 5ms) plus the time of the receiver frequency switching, but due to the maximum The limitation of the channel occupation time, the length of the DAS of the LAA SCell cannot be as long as the traditional DRS, and cannot occupy 5 ms.
  • the DRS length we call the DRS length, and the value may be 2.5 ms, 3 ms, 4 ms, and the like. In other words, the DRS we designed only needs to take part of the 6ms window to send.
  • the time is divided into small granularities, which are used for CCA detection, in order to be more eNB (base station) than data transmission. It is easy to preempt the channel, where the CCA detection granularity (ie, channel detection time) can be set to 10 us (or 20 us).
  • the CCA detection is performed every 10us. As long as one CCA detection detects that the downlink channel is idle, the DRS is sent immediately. At the same time, the LBT mechanism used to transmit DRS is a bit like the combination of FBE and LBE.
  • the CCA starting point is 40ms period, which is equivalent to the periodic FBE mechanism, but the first CCA does not wait like FBE after detecting that the channel is busy.
  • the CCA of the next 40ms period starts detecting again, but continues to detect like the LBE mechanism, but the random number N of the extended CCA (extended channel detection time) of the LBE takes a value of 1, as long as one channel idle is detected, Can occupy the channel.
  • the eNB releases the channel. However, if the CCA detects that the channel is idle during any channel detection time in any second period, the remaining time of 6ms is less than 3ms (or consider the frequency point switching, leaving 20us time, it should be less than 3ms+20us) ), then there is no need to do CCA testing later. Because even if any of the other letters in the second period The CCA during the channel detection time detects that the channel is idle and cannot send the complete DRS.
  • the sending window of each second period attempts to send the DRS, but if the DRS is successfully sent in the sending window of the previous second period, then the second one is followed.
  • the send window in the cycle does not have to be tried. If the DRS has not been successfully sent before, the send window in the following second cycle continues to try. In other words, as long as the DRS is guaranteed to be sent once in the first cycle.
  • Figure 9 shows some examples of transmitting DRS (in the example, the CCA detection time granularity of 10us and the maximum channel occupation time of 3ms are only schematic diagrams)
  • the first listening and speaking mechanism for transmitting the discovery reference signal and the first listening and speaking mechanism for transmitting the downlink data respectively use respective parameter information
  • the first listening and speaking mechanism for transmitting the discovery reference signal and the first listening and speaking mechanism for transmitting the downlink data all use the parameter information of the first listening and speaking mechanism for transmitting the downlink data.
  • the first listening and speaking mechanism for transmitting the downlink data and the first listening and speaking mechanism for transmitting the discovery reference signal all use the parameter information of the first listening and speaking mechanism for transmitting the discovery reference signal.
  • Figure 10 shows a schematic structural view of a device in accordance with an embodiment of the present invention.
  • the apparatus may include at least one transceiver 503, at least one processor 501, such as a CPU, a memory 504, and at least one communication bus 502.
  • the communication bus 502 is configured to connect the transceiver 503, the processor 501, and the memory 504.
  • the above memory 504 may be a high speed RAM memory or a non-volatile memory such as a disk memory.
  • the memory 504 is further configured to store a set of program codes, and the transceiver 503 and the processor 501 are configured to call the program code stored in the memory 504, and perform the following operations:
  • the processor 501 is configured to adjust parameter information of a channel detection mechanism corresponding to the to-be-sent data according to a data type of the to-be-transmitted data of the device with the function of the base station;
  • the processor 501 is further configured to adjust, according to the adjusted parameter information, a probability that the to-be-sent data occupies a downlink channel, where the data type of the to-be-sent data includes: a discovery reference signal and/or a downlink data. .
  • the step of the processor 501 according to the data type of the to-be-transmitted data of the device with the function of the base station, the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data, specifically includes:
  • the length of the contention window and the signal strength threshold used by the channel detection mechanism corresponding to the data to be transmitted to determine whether the downlink channel is idle.
  • the channel detection mechanism includes: a first channel detection mechanism and a second channel detection mechanism, wherein when the transceiver device 503 is configured to send the discovery reference signal, the processor The 501 is configured to detect the downlink channel by using the first channel detection mechanism, and when the transceiver device 503 is configured to send the downlink data, the processor 501 is configured to detect the downlink channel by using the second channel detection mechanism.
  • the step of the processor 501 according to the data type of the to-be-transmitted data of the device with the function of the base station, the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data, further includes:
  • the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data is adjusted by the following process, so that the probability that the discovery reference signal occupies the downlink channel is greater than or equal to the probability that the second channel detection mechanism occupies the downlink channel :
  • a first channel detection time granularity to be less than or equal to a second channel detection time granularity of the second channel detection mechanism
  • a first contention window length of the extended channel detection time to be less than or equal to a second contention window length of the extended channel detection time used by the second channel detection mechanism
  • a first signal strength threshold for determining whether the downlink channel is idle to be greater than or equal to a criterion used by the second channel detection mechanism to determine whether the downlink channel is idle Two signal strength thresholds.
  • the processor 501 is further configured to perform the following operations:
  • At least one channel detection time for continuously detecting whether the downlink channel is idle is set in the window, and is used to detect whether the downlink channel is idle.
  • the first sending period is greater than the first preset sending period, where the first preset sending period is equal to the small cell in the serving cell where the device with the base station function is located is closed. Transmitting a minimum period value of the discovery reference signal, and the first transmission period is equal to a period value other than the minimum period value used when the discovery reference signal is sent when the small cell is off;
  • the second transmission period is smaller than the second preset transmission period, where the second preset transmission period is equal to a maximum period value that occurs in the measurement interval in the inter-frequency measurement, and the second transmission period is equal to the inter-frequency measurement.
  • Other period values occurring at the measurement interval other than the maximum period value, and the length of the transmission window is equal to the length of the measurement interval in the inter-frequency measurement.
  • the processor 501 further performs the following steps:
  • the processor 501 further performs the following steps:
  • At least one second transmission period is set in the first transmission period
  • the remaining time in the transmission window of any one of the second transmission periods is smaller than the maximum channel occupation time of the first channel detection mechanism
  • At least one second transmission period is set in the first transmission period
  • the remaining time in the transmission window of any one of the second transmission periods is smaller than the first channel check The sum of the maximum channel occupancy time of the measurement mechanism and the terminal receiver frequency switching time.
  • the processor 501 further performs the following steps:
  • the transmitting and receiving device 503 When the transmitting and receiving device 503 has sent the discovery reference signal in the transmission window in any of the second transmission periods, releasing the downlink channel in the remaining time in the first transmission period, and stopping the sending and receiving device 503 to send The discovery reference signal, and when at least one second transmission period is set in the first transmission period, stopping setting in a transmission window of remaining other transmission periods in a remaining time in the first transmission period And configured to detect whether the downlink channel is idle, and is used to send a channel detection time of the discovery reference signal.
  • the processor 501 further performs the following steps:
  • any channel detection time is the Nth channel in the transmission window of any of the second transmission periods.
  • Channel detection time before detection time is the Nth channel in the transmission window of any of the second transmission periods.
  • the discovery reference signal is not sent, and the terminal receiver frequency switching time is reserved for the terminal; otherwise, the discovery reference signal is sent, where the terminal receiver frequency switching time includes: N-1) the sum of the times of the channel detection times,
  • N is a positive integer
  • any one of the second transmission periods is any one of the first transmission periods.
  • the step of the processor 501 according to the data type of the to-be-transmitted data of the device with the function of the base station, the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data, specifically includes:
  • the step of the processor 501 according to the data type of the data to be sent, of the device with the function of the base station, and the parameter information of the channel detection mechanism corresponding to the to-be-transmitted data, further includes:
  • the second signal strength threshold is adjusted to be less than or equal to the first signal strength threshold.
  • the device is applicable to a downlink channel on an unlicensed frequency band on an LTE system.

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Abstract

本发明提出了一种信道占用概率的调整方法、一种信道占用概率的调整系统和一种具有基站功能的设备，信道占用概率的调整方法包括：根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。通过本发明的技术方案，可以提高发送DRS的LBT机制抢占信道的能力，使发现参考信号更容易占用信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，从而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。

Description

信道占用概率的调整方法、调整系统和设备
本申请要求于2015年04月09日提交中国专利局、申请号201510167205.3，发明名称为“信道占用概率的调整方法、调整系统和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体而言，涉及一种信道占用概率的调整方法、一种信道占用概率的调整系统和一种具有基站功能的设备。
背景技术
随着通信业务量的急剧增加，3GPP的授权频谱越来越不足以提供更高的网络容量。为了进一步提高频谱资源的利用率，3GPP正讨论如何在授权频谱的帮助下使用未授权频谱，如2.4GHz和5GHz频段。这些未授权频谱目前主要是Wi-Fi、蓝牙、雷达、医疗等系统在使用。
通常情况下，为已授权频段设计的接入技术，如LTE(Long Term Evolution，长期演进)不适合在非授权频段上使用，因为LTE这类接入技术对频谱效率和用户体验优化的要求非常高。然而，载波聚合(Carrier Aggregation，CA)功能让将LTE部署于非授权频段变为可能。3GPP提出了LAA(LTE Assisted Access，LTE辅助接入)的概念，借助LTE授权频谱的帮助来使用未授权频谱。而未授权频谱可以有两种工作方式，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，既包含下行子帧、上行子帧。补充下行这种情况只能是借助载波聚合技术使用(如图1所示)。而TDD模式除了可以借助载波聚合技术使用外，还可以借助DC(Dual Connectivity，双连通)使用，也可以独立使用。
相比于Wi-Fi系统，工作在非授权频段的LTE系统有能力提供更高的频谱效率和更大的覆盖效果，同时基于同一个核心网让数据流量在授权频段和非授权频段之间无缝切换。对用户来说，这意味着更好的宽带体验、 更高的速率、更好的稳定性和移动便利。
现有的在非授权频谱上使用的接入技术，如Wi-Fi，具有较弱的抗干扰能力。为了避免干扰，Wi-Fi系统设计了很多干扰避免规则，如CSMA/CD(Carrier Sense Multiple Access/Collision Detection，载波监听多路访问/冲突检测方法)，这种方法的基本原理是Wi-Fi的AP(Access Point，接入点)或者终端在发送信令或者数据之前，要先监听检测周围是否有其他AP或者其他终端在发送/接收信令或数据，若有，则继续监听，直到监听到没有为止；若没有，则生成一个随机数作为退避时间，在这个退避时间内，如果没检测到有信令或数据传输，那么在退避时间结束之后，AP或终端可以开始发送信令或数据。该过程如图2所示。
但是，LTE网络中由于有很好的正交性保证了干扰水平，所以基站与用户的上下行传输不用考虑周围是否有其他基站或其他用户在传输数据。如果LTE在非授权频段上使用时也不考虑周围是否有其他设备在使用非授权频段，那么将对Wi-Fi设备带来极大的干扰。因为LTE只要有业务就进行传输，没有任何监听规则，那么Wi-Fi设备在LTE有业务传输时就不能传输，只能等到LTE业务传输完成，才能检测到信道空闲状态以进行数据传输。
所以LTE在使用非授权频段时，最主要的关键点之一是确保LAA(LTE assisted access，LTE辅助的接入技术)能够在公平友好的基础上和现有的接入技术(比如WiFi)共存。而传统的LTE系统中没有LBT(Listen Before Talk，先听后说)的机制来避免碰撞。为了与WiFi更好的共存，LTE需要一种LBT机制。这样，LTE在非授权频谱上如果检测到信道忙，则不能占用该频段，如果检测到信道闲，才能占用。
基于上述问题，目前，提出了一种基于帧结构的(FBE，Framed based equipment)的LBT机制(如图3所示)，左斜线是CCA(Clear Channel Assessment，空闲信道评估)的信道检测时间，CCA检测时间周期性重复出现，若检测到信道空闲，则占用信道，在信道占用时间达到最大信道占用时间之后，有一个idle时间，在idle时间，发送点不发送信号和数据，以便于其它发送点抢占信道。在idle时间之后，又出现CCA检测时间，若 检测到信道忙，则不占用信道，直到下一周期的CCA检测时间出现时再次检测信道。当然，信道检测时间也属于idle时间，idle时长必须大于信道最大占用时间的5％。Idle时间加上信道占用最大时间即周期。
目前，还提出了一种基于负载的(LBE，Load based equipment)的LBT机制如下图4所示：基于LBE的LBT机制是无周期的，只要业务到达，则触发CCA检测，如果CCA检测空闲，则马上发送信令或数据；若检测到信道忙，则取一个随机数N，N的取值范围为1到q(即竞争窗口长度)，q的取值范围是4到32。图4示出了q＝16的情况，此时，当检测到信道空闲时，信道最大占用时间为(13/32)x q＝6.5ms。在6.5ms之后，采取extended CCA(延长的信道检测时间)机制，即也是随机取值N，N的范围为1到16，若取值为8，则表示在接下来的连续的CCA检测时间中，每个CCA检测时间都要检测信道，若检测到信道空闲，则N-1，若检测到信道忙，则N不变，当N为0时，发送信令或数据。
另外，LAA中的用于RRM(Radio Resource Management，无线资源管理)测量、小区识别、下行同步、时频估计等的参考信号有两种方式实现：一种是short control signaling(短时控制信号)，这种方式需要满足的要求是50ms内可以有5％的时间在发送短时控制信号，也就是2.5ms。另一种是发送非周期的DRS(Discovery Reference Signal，发现参考信号)，因为发送DRS需占用6ms的时间，而如果在检测到信道忙时也发送，将给其它系统带来较大的干扰，所以如果是发送DRS，就只能在检测到信道空闲时发送，那么DRS就是非周期的。
另外，由于终端无论是发送数据还是接收数据，都必须提前根据基站的下行参考信号(即DRS信号)实现小区识别、下行同步、时频估计等，因此，当DRS必需在信道检测空闲才能发送时，一些LAA小区为了被邻小区的UE测量到，即使没有数据业务需要发送，这些LAA小区也要进行LBT信道检测，并且在检测到信道空闲时，发送DRS。但是，如果同一个频率上的LAA小区发送参考信号DRS的时间太随机的话，终端为了测量邻小区，需要消耗更多功率，特别是异频测量的时候，可能由于邻小区没有抢占到信道，不能发送DRS，而使得终端在测量间隔measurement gap 时连一个邻小区的参考信号DRS都检测不到。而且，如果LAA小区长时间不能发送参考信号DRS的话，会导致终端测量准确度较低。所以如何保证发送参考信号DRS时，能更大概率的抢占到信道呢？
因此，如何在信道检测的过程中，无论是使用基于帧结构的LBT机制还是使用基于负载的LBT机制，均可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度，成为亟待解决的问题。
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，使得在信道检测的过程中，无论发送DRS的LBT机制和发送普通发送下行数据的LBT机制是基于帧结构的LBT机制还是使用基于负载的LBT机制，均可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，进而实现减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
有鉴于此，本发明的一方面提出了一种信道占用概率的调整方法，用于具有基站功能的设备，包括：根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
在该技术方案中，通过根据具有基站功能的设备的待发送数据即该待发送数据是发现参考信号还是下行数据，调整待发送数据对应的LBT机制(即信道检测机制)的各项参数信息，使得发现参考信号和下行数据所对应的LBT机制使用相同或不同的参数信息，从而实现对待发送数据占用下行信道的概率进行调整，使得发送DRS的LBT机制抢占信道的能力得到 提高，使发送DRS信号的LBT机制较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道占有机率，从而使发现参考信号更容易占用信道或至少与普通下行数据具有相同的信道占有概率，进而实现及时地发送DRS信号，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度，当然，发送DRS的LBT机制和发送普通下行数据的LBT机制可以是基于帧结构的LBT机制也可以是基于负载的LBT机制。另外，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息，具体包括：根据所述具有基站功能的设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述具有基站功能的设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
在该技术方案中，通过调整发现参考信号和下行数据所对应的LBT机制中的各项参数信息，可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道，或至少与普通下行数据具有相同的信道占有概率进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当发送所述发现参考信号时，使用所述第一信道检测机制检测所述下行信道，当发送所述下行数据时，使用所述第二信道检测机制检测所述下行信道。
在该技术方案中，发送发现参考信号和发送下行数据时，分别使用第 一信道检测机制和第二信道检测机制检测下行信道，而第一信道检测机制和第二信道检测机制可以相同也可以不同，例如：可以都是基于帧结构(或基于负载)的LBT机制，但是其中的参数不一样，也可以分别为基于帧结构的LBT机制和基于负载的LBT机制。
在上述技术方案中，优选地，通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
在该技术方案中，当具有基站功能的设备发送发现参考信号或/或下行数据，通过按照上述方式对第一信道检测机制和第二信道检测机制的各项参数信息进行调整，可以确保能够有力地提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道占有机率，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。其具体过程为：将发送DRS的LBT机制的CCA检测时间长度(即粒度)调整为小于或等于发送数据的LBT机制的CCA检测时间长度。例如：当发送数据的LBT机制中CCA检测时间长度为20us(该检测时间长度即为非授权频谱规则中规定的CCA的最小检测时间粒度)时，发送参考信号DRS的LBT机制中的CCA检测时间长度可以是10us，或者当发送数据的LBT机制中CCA检测时间长度是30us，发送参考信号DRS的LBT机制中CCA检测时间长度可以为20us；
将发送参考信号DRS的LBT机制的最大信道占用时间调整为小于或等于发送数据的LBT机制的最大信道占用时间，例如：当发送数据的LBT机制中最大信道占用时间是4ms，发送参考信号DRS的LBT机制中最大信道占用时间可以是3ms；
将发送参考信号DRS的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)调整为小于发送数据的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)，从而使得当LBT机制是基于LBE时，随机数N取较小值的概率高，例如：发送参考信号DRS的LBT机制中q值取4时，发送数据的LBT机制中的q值可以取16到32，这样发送参考信号DRS的LBT机制中随机数N从1～q中取时，其值较小，就意味着在较少个CCA检测时间检测到信道空闲时，就能发送DRS了；
将发送参考信号DRS的LBT机制的CCA信道检测门限(信号强度阈值)调整为大于或等于发送数据LBT机制采用的CCA信道检测门限(信号强度阈值)，即在发送DRS时，只要信道干扰不是太大，就判断信道下行空闲就能发送DRS，而在发送下行数据时，只有在信道干扰很小时，才能判断信道下行空闲，才能发送下行数据。当然，若为了使发送普通下行数据的LBT机制较发送DRS的LBT机制更容易抢占到信道，则可以按照与上述控制方式完全相反的方式调整发送普通下行数据的LBT机制和发送DRS的LBT机制中的各项参数信息。
在上述技术方案中，优选地，还包括：在帧结构中为所述发现参考信号设置第一发送周期；在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
在该技术方案中，通过在帧结构中为发现参考信号设置一个较大的第一发送周期，并在第一发送周期中设置至少一个较小的第二发送周期，且在每个第二发送周期中的相同位置均设置一个发送窗口，便于在每个发送窗口中设置可以连续检测下行信道是否空闲的至少一个信道检测时间并在 至少一个信道检测时间中的每个信道检测时间上设置CCA，从而可以在每个信道检测时间内使用该CCA检测下行信道是否空闲，以在空闲时发送DRS信号。
在上述技术方案中，优选地，所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
在该技术方案中，通过使第一发送周期等于小小区关闭时，发送发现参考信号时使用的除最小周期值(如40ms)之外的其他周期值(如80ms、160ms)，且使第一发送周期大于第一预设发送周期，可以确保第一发送周期为传统DRS发送周期中较大的值，比如160ms，另外，通过使第二发送周期等于异频测量中除最大周期值(如80ms)之外的测量间隔出现的其他周期值，且使第二发送周期小于第二预设发送周期，可以确保第二发送周期为异频测量中测量间隔出现的周期中的较小值(比如40ms)，这样便于更频繁地检测下行信道是否空闲，以在检测到空闲时，可以及时地发送DRS，同时，也可以提高信道测量结果的准确度，并进一步提高DRS占用信道的能力，防止发送DRS时因为下行信道检测不频繁，而导致错失发送DRS的时机。
在上述技术方案中，优选地，还包括：当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一 发送周期中的任一第二发送周期。
在该技术方案中，当任一信道检测时间内的CCA检测到下行信道空闲，且发送窗口中的剩余时间大于或等于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间足够完整地发送一个DRS信号，则可以在任一第二发送周期的发送窗口的剩余时间内发送一个发现参考信号，反之，当任一信道检测时间内的CCA检测到下行信道空闲，但发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间不足够完整地发送一个DRS信号，则不在任一第二发送周期的发送窗口的剩余时间内发送发现参考信号。
在上述技术方案中，优选地，还包括：在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
在该技术方案中，当该任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到下行信道空闲时，若任一第二发送周期的发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和，则就可以不用在该任一第二发送周期的发送窗口中设置其他信道检测时间，即不用做CCA检测了，因为即使后面的CCA在其他信道检测时间内检测到信道空闲，也不能发送完整的DRS了，而可以按顺序依次在与该任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时 间，以在该至少一个信道检测时间内使用CCA检测下行信道是否空闲。
在上述技术方案中，优选地，还包括：当在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
在该技术方案中，当在任一第二发送周期中的发送窗口内已发送发现参考信号时，则可以在第一发送周期中的剩余时间内释放下行信道，以不再发送发现参考信号，并停止在剩余其他第二发送周期的发送窗口中设置用于检测下行信道是否空闲以发送发现参考信号的信道检测时间，这样，可以保证第一发送周期内，最多发送一次DRS，避免DRS信号发送过于频繁，占用下行信道时间过长而影响下行数据的正常发送。
在上述技术方案中，优选地，还包括：当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在该技术方案中，当在任一第二发送周期的任一信道检测时间内检测到下行信道空闲时，若该任一信道检测时间是该任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间，则不发送发现参考信号，这样，便于将第N个信道检测时间之前的信道检测时间预留给终端以作为终端接收机频点切换时间；当然，若该任一信道检测时间是第N个信道检测时间或第N个信道检测时间之后的信道检测时间，则可以说明已经为终端预留终端接收机频点切换时间了，则可以立即发送发现参考信号。
在上述技术方案中，优选地，当在任一第二发送周期的发送窗口中的 任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，则所述调整所述待发送数据所对应的信道检测机制的参数信息的过程具体包括：将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或所述调整所述待发送数据所对应的信道检测机制的参数信息的过程具体还包括：将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
在该技术方案中，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测下行信道是否空闲时，若需要在该任一第二发送周期的发送窗口内同时发送发现参考信号和下行数据，则可以将第一信道检测机制或第二信道检测机制的参数信息进行调整，使第一信道检测机制和第二信道检测机制都使用第二信道检测机制的参数信息、或第一信道检测机制和第二信道检测机制都使用第一信道检测机制的参数信息，从而使得第一信道检测机制与第二信道检测机制具有相等的下行信道抢占机率，以使第一信道检测机制与第二信道检测机制公平竞争下行信道；当然，还可以将第一信道检测机制和第二信道检测机制调整为分别使用各自的参数信息，以使得发送DRS的LBT机制具有更高的抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述调整方法适用于LTE系统上的非授权频段上的下行信道；以及所述信道检测机制包括先听后说机制。
本发明的另一方面提出了一种信道占用概率的调整系统，包括：第一调整单元，根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；第二调整单元，根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
在该技术方案中，通过根据具有基站功能的设备的待发送数据即该待发送数据是发现参考信号还是下行数据，调整待发送数据对应的LBT机制(即信道检测机制)的参数信息，使得发现参考信号和下行数据所对应的LBT机制使用相同或不同的各项参数信息，从而实现对待发送数据占用下行信道的概率进行调整，使得发送DRS的LBT机制抢占信道的能力得到提高，使发送DRS信号的LBT机制较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，从而使发现参考信号更容易占用信道，或至少与普通下行数据具有相同的信道占有概率，进而实现及时地发送DRS信号，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度，当然，发送DRS的LBT机制和发送普通下行数据的LBT机制可以是基于帧结构的LBT机制也可以是基于负载的LBT机制。另外，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述第一调整单元具体用于：根据所述具有基站功能的设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述具有基站功能的设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
在该技术方案中，通过调整发现参考信号和下行数据所对应的LBT机制中的各项参数信息，可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考 信号更容易占用信道，或至少与普通下行数据具有相同的信道占有概率，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当发送所述发现参考信号时，使用所述第一信道检测机制检测所述下行信道，当发送所述下行数据时，使用所述第二信道检测机制检测所述下行信道。
在该技术方案中，发送发现参考信号和发送下行数据时，分别使用第一信道检测机制和第二信道检测机制检测下行信道，而第一信道检测机制和第二信道检测机制可以相同也可以不同，例如：可以都是基于帧结构(或基于负载)的LBT机制，但是其中的参数不一样，也可以分别为基于帧结构的LBT机制和基于负载的LBT机制。
在上述技术方案中，优选地，所述第一调整单元具体还用于：通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
在该技术方案中，当具有基站功能的设备发送发现参考信号或/或下行数据，通过按照上述方式对第一信道检测机制和第二信道检测机制的各项参数信息进行调整，可以确保能够有力地提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以减少终 端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。其具体过程为：将发送DRS的LBT机制的CCA检测时间长度(即粒度)调整为小于或等于发送数据的LBT机制的CCA检测时间长度。例如：当发送数据的LBT机制中CCA检测时间长度为20us(该检测时间长度即为非授权频谱规则中规定的CCA的最小检测时间粒度)时，发送参考信号DRS的LBT机制中的CCA检测时间长度可以是10us，或者当发送数据的LBT机制中CCA检测时间长度是30us，发送参考信号DRS的LBT机制中CCA检测时间长度可以为20us；
将发送参考信号DRS的LBT机制的最大信道占用时间调整为小于或等于发送数据的LBT机制的最大信道占用时间，例如：当发送数据的LBT机制中最大信道占用时间是4ms，发送参考信号DRS的LBT机制中最大信道占用时间可以是3ms；
将发送参考信号DRS的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)调整为小于发送数据的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)，从而使得当LBT机制是基于LBE时，随机数N取较小值的概率高，例如：发送参考信号DRS的LBT机制中q值取4时，发送数据的LBT机制中的q值可以取16到32，这样发送参考信号DRS的LBT机制中随机数N从1～q中取时，其值较小，就意味着在较少个CCA检测时间检测到信道空闲时，就能发送DRS了；
将发送参考信号DRS的LBT机制的CCA信道检测门限(信号强度阈值)调整为大于或等于发送数据LBT机制采用的CCA信道检测门限(信号强度阈值)，即在发送DRS时，只要信道干扰不是太大，就判断信道下行空闲就能发送DRS，而在发送下行数据时，只有在信道干扰很小时，才能判断信道下行空闲，才能发送下行数据。当然，若为了使发送普通下行数据的LBT机制较发送DRS的LBT机制更容易抢占到信道，则可以按照与上述控制方式完全相反的方式调整发送普通下行数据的LBT机制和发送DRS的LBT机制中的各项参数信息。
在上述技术方案中，优选地，还包括：第一设置单元，在帧结构中为所述发现参考信号设置第一发送周期；第二设置单元，在所述第一发送周 期中为所述发现参考信号设置至少一个第二发送周期；第三设置单元，在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
在该技术方案中，通过在帧结构中为发现参考信号设置一个较大的第一发送周期，并在第一发送周期中设置至少一个较小的第二发送周期，且在每个第二发送周期中的相同位置均设置一个发送窗口，便于在每个发送窗口中设置可以连续检测下行信道是否空闲的至少一个信道检测时间并在至少一个信道检测时间中的每个信道检测时间上设置CCA，从而可以在每个信道检测时间内使用该CCA检测下行信道是否空闲，以在空闲时发送DRS信号。
在上述技术方案中，优选地，所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
在该技术方案中，通过使第一发送周期等于小小区关闭时，发送发现参考信号时使用的除最小周期值(如40ms)之外的其他周期值(如80ms、160ms)，且使第一发送周期大于第一预设发送周期，可以确保第一发送周期为传统DRS发送周期中较大的值，比如160ms，另外，通过使第二发送周期等于异频测量中除最大周期值(如80ms)之外的测量间隔出现的其他周期值，且使第二发送周期小于第二预设发送周期，可以确保第二发送周期为异频测量中测量间隔出现的周期中的较小值(比如40ms)，这样便于更频繁地检测下行信道是否空闲，以在检测到空闲时，可以及时地发送 DRS，同时，也可以提高信道测量结果的准确度，并进一步提高DRS占用信道的能力，防止发送DRS时因为下行信道检测不频繁，而导致错失发送DRS的时机。
在上述技术方案中，优选地，还包括：第一发送单元，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在该技术方案中，当任一信道检测时间内的CCA检测到下行信道空闲，且发送窗口中的剩余时间大于或等于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间足够完整地发送一个DRS信号，则可以在任一第二发送周期的发送窗口的剩余时间内发送一个发现参考信号，反之，当任一信道检测时间内的CCA检测到下行信道空闲，但发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间不足够完整地发送一个DRS信号，则不在任一第二发送周期的发送窗口的剩余时间内发送发现参考信号。
在上述技术方案中，优选地，还包括：第一处理单元，在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占 用时间与终端接收机频点切换时间之和。
在该技术方案中，当该任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到下行信道空闲时，若任一第二发送周期的发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和，则就可以不用在该任一第二发送周期的发送窗口中设置其他信道检测时间，即不用做CCA检测了，因为即使后面的CCA在其他信道检测时间内检测到信道空闲，也不能发送完整的DRS了，而可以按顺序依次在与该任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间，以在该至少一个信道检测时间内使用CCA检测下行信道是否空闲。
在上述技术方案中，优选地，还包括：第二处理单元，当在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
在该技术方案中，当在任一第二发送周期中的发送窗口内已发送发现参考信号时，则可以在第一发送周期中的剩余时间内释放下行信道，以不再发送发现参考信号，并停止在剩余其他第二发送周期的发送窗口中设置用于检测下行信道是否空闲以发送发现参考信号的信道检测时间，这样，可以保证第一发送周期内，最多发送一次DRS，避免DRS信号发送过于频繁，占用下行信道时间过长而影响下行数据的正常发送。
在上述技术方案中，优选地，还包括：判断单元，当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；第二发送单元，在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述 信道检测时间的时间之和，其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在该技术方案中，当在任一第二发送周期的任一信道检测时间内检测到下行信道空闲时，若该任一信道检测时间是该任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间，则不发送发现参考信号，这样，便于将第N个信道检测时间之前的信道检测时间预留给终端以作为终端接收机频点切换时间；当然，若该任一信道检测时间是第N个信道检测时间或第N个信道检测时间之后的信道检测时间，则可以说明已经为终端预留终端接收机频点切换时间了，则可以立即发送发现参考信号。
在上述技术方案中，优选地，所述第一调整单元还用于：当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或所述第一调整单元还用于：将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
在该技术方案中，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测下行信道是否空闲时，若需要在该任一第二发送周期的发送窗口内同时发送发现参考信号和下行数据，则可以将第一信道检测机制或第二信道检测机制的参数信息进行调整，使第一信道检测机制和第二信道检测机制都使用第二信道检测机制的参数信息、或第一信道检测机制和第二信道检测机制都使用第一信道检测机制的参数信息，从而使得第一信道检测机制与第二信道检测机制具有相等的下行信道抢占机率，以使第一信 道检测机制与第二信道检测机制公平竞争下行信道；当然，还可以将第一信道检测机制和第二信道检测机制调整为分别使用各自的参数信息，以使得发送DRS的LBT机制具有更高的抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述调整系统适用于LTE系统上的非授权频段上的下行信道；以及所述信道检测机制包括先听后说机制。
本发明的又一方面提出了一种用于具有基站功能的设备，所述设备包括通信总线、收发装置、存储器以及处理器，其中：
所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
所述处理器，用于根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；
所述处理器，还用于根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
在上述技术方案中，优选地，所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤具体包括：
根据所述设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
在上述技术方案中，优选地，所述信道检测机制包括：第一信道检测机 制和第二信道检测机制，其中，当所述收发装置用于发送所述发现参考信号时，所述处理器用于使用所述第一信道检测机制检测所述下行信道，当收发装置用于发送所述下行数据时，所述处理器用于使用所述第二信道检测机制检测所述下行信道。
在上述技术方案中，优选地，所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息步骤还包括：
通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：
将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或
将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或
将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
在上述技术方案中，优选地，所述处理器还用于执行以下操作：
在帧结构中为所述发现参考信号设置第一发送周期；
在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；
在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
在上述技术方案中，优选地，所述第一发送周期大于第一预设发送周期， 其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；
所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
在上述技术方案中，优选地，所述处理器还执行如下步骤：
当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在上述技术方案中，优选地，所述处理器还执行如下步骤：
在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：
所述第一发送周期中设置有至少一个第二发送周期，且
所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或
所述第一发送周期中设置有至少一个第二发送周期，且
所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
在上述技术方案中，优选地，所述处理器还执行如下步骤：
当收发装置在所述任一第二发送周期中的发送窗口内已发送所述发现 参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止收发装置发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
在上述技术方案中，优选地，所述处理器还执行如下步骤：
当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；
在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，
其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在上述技术方案中，优选地，所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤具体包括：
当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，
将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或
将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或
将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或
所述处理器根据所述具有基站功能的设备的待发送数据的数据类型， 调整所述待发送数据所对应的信道检测机制的参数信息的步骤还具体包括：
将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或
将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或
将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或
将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
在上述技术方案中，优选地，所述设备适用于LTE系统上的非授权频段上的下行信道。
在该技术方案中，通过在具有基站功能的设备上设置信道占用概率的调整系统，可以使发送DRS的LBT机制具有更高的抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
通过本发明的技术方案，可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以实现及时发送DRS，从而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
附图说明
图1示出了非授权频谱的两种工作方式的示意图；
图2示出了Wi-Fi系统的干扰避免规则的示意图；
图3示出了相关技术中基于FBE的帧结构的结构示意图；
图4示出了相关技术中基于LBE的LBT帧结构的结构示意图；
图5示出了根据本发明的一个实施例的信道占用概率的调整方法的流程示意图；
图6示出了根据本发明的一个实施例的信道占用概率的调整系统的结构示意图；
图7示出了根据本发明的一个实施例的具有基站功能的设备的结构示意图；
图8示出了根据本发明的一个实施例的第一信道检测机制中的发送窗口的设置位置的结构示意图；
图9示出了根据本发明的一个实施例的发送发现参考信号的示意图。
图10示出了根据本发明的一个实施例的设备的结构示意图。
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5示出了根据本发明的一个实施例的信道占用概率的调整方法的流程示意图。
如图5所示，示出了本发明的一个实施例的信道占用概率的调整方法，包括：步骤502，根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；步骤504，根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
在该技术方案中，通过根据具有基站功能的设备的待发送数据即该待发送数据是发现参考信号还是下行数据，调整待发送数据对应的LBT机制(即信道检测机制)的各项参数信息，使得发现参考信号和下行数据所对应的LBT机制使用相同或不同的参数信息，从而实现对待发送数据占用下行信道的概率进行调整，使得发送DRS的LBT机制抢占信道的能力得到 提高，使发送DRS信号的LBT机制较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，从而使发现参考信号更容易占用信道或至少与普通下行数据具有相同的信道占有概率，进而实现及时地发送DRS信号，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度，当然，发送DRS的LBT机制和发送普通下行数据的LBT机制可以是基于帧结构的LBT机制也可以是基于负载的LBT机制。另外，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息，具体包括：根据所述具有基站功能的设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述具有基站功能的设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
在该技术方案中，通过调整发现参考信号和下行数据所对应的LBT机制中的各项参数信息，可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道，或至少与普通下行数据具有相同的信道占有概率，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当发送所述发现参考信号时，使用所述第一信道检测机制检测所述下行信道，当发送所述下行数据时，使用所述第二信道检测机制检测所述下行信道。
在该技术方案中，发送发现参考信号和发送下行数据时，分别使用第 一信道检测机制和第二信道检测机制检测下行信道，而第一信道检测机制和第二信道检测机制可以相同也可以不同，例如：可以都是基于帧结构(或基于负载)的LBT机制，但是其中的参数不一样，也可以分别为基于帧结构的LBT机制和基于负载的LBT机制。
在上述技术方案中，优选地，通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
在该技术方案中，当具有基站功能的设备发送发现参考信号或/或下行数据，通过按照上述方式对第一信道检测机制和第二信道检测机制的各项参数信息进行调整，可以确保能够有力地提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。其具体过程为：将发送DRS的LBT机制的CCA检测时间长度(即粒度)调整为小于或等于发送数据的LBT机制的CCA检测时间长度。例如：当发送数据的LBT机制中CCA检测时间长度为20us(该检测时间长度即为非授权频谱规则中规定的CCA的最小检测时间粒度)时，发送参考信号DRS的LBT机制中的CCA检测时间长度可以是10us，或者当发送数据的LBT机制中CCA检测时间长度是30us，发送参考信号DRS的LBT机制中CCA检测时间长度可以为20us；
将发送参考信号DRS的LBT机制的最大信道占用时间调整为小于或等于发送数据的LBT机制的最大信道占用时间，例如：当发送数据的LBT机制中最大信道占用时间是4ms，发送参考信号DRS的LBT机制中最大信道占用时间可以是3ms；
将发送参考信号DRS的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)调整为小于发送数据的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)，从而使得当LBT机制是基于LBE时，随机数N取较小值的概率高，例如：发送参考信号DRS的LBT机制中q值取4时，发送数据的LBT机制中的q值可以取16到32，这样发送参考信号DRS的LBT机制中随机数N从1～q中取时，其值较小，就意味着在较少个CCA检测时间检测到信道空闲时，就能发送DRS了；
将发送参考信号DRS的LBT机制的CCA信道检测门限(信号强度阈值)调整为大于或等于发送数据LBT机制采用的CCA信道检测门限(信号强度阈值)，即在发送DRS时，只要信道干扰不是太大，就判断信道下行空闲就能发送DRS，而在发送下行数据时，只有在信道干扰很小时，才能判断信道下行空闲，才能发送下行数据。当然，若为了使发送普通下行数据的LBT机制较发送DRS的LBT机制更容易抢占到信道，则可以按照与上述控制方式完全相反的方式调整发送普通下行数据的LBT机制和发送DRS的LBT机制中的各项参数信息。
在上述技术方案中，优选地，还包括：在帧结构中为所述发现参考信号设置第一发送周期；在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
在该技术方案中，通过在帧结构中为发现参考信号设置一个较大的第一发送周期，并在第一发送周期中设置至少一个较小的第二发送周期，且在每个第二发送周期中的相同位置均设置一个发送窗口，便于在每个发送窗口中设置可以连续检测下行信道是否空闲的至少一个信道检测时间并在 至少一个信道检测时间中的每个信道检测时间上设置CCA，从而可以在每个信道检测时间内使用该CCA检测下行信道是否空闲，以在空闲时发送DRS信号。
在上述技术方案中，优选地，所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
在该技术方案中，通过使第一发送周期等于小小区关闭时，发送发现参考信号时使用的除最小周期值(如40ms)之外的其他周期值(如80ms、160ms)，且使第一发送周期大于第一预设发送周期，可以确保第一发送周期为传统DRS发送周期中较大的值，比如160ms，另外，通过使第二发送周期等于异频测量中除最大周期值(如80ms)之外的测量间隔出现的其他周期值，且使第二发送周期小于第二预设发送周期，可以确保第二发送周期为异频测量中测量间隔出现的周期中的较小值(比如40ms)，这样便于更频繁地检测下行信道是否空闲，以在检测到空闲时，可以及时地发送DRS，同时，也可以提高信道测量结果的准确度，并进一步提高DRS占用信道的能力，防止发送DRS时因为下行信道检测不频繁，而导致错失发送DRS的时机。
在上述技术方案中，优选地，还包括：当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一 发送周期中的任一第二发送周期。
在该技术方案中，当任一信道检测时间内的CCA检测到下行信道空闲，且发送窗口中的剩余时间大于或等于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间足够完整地发送一个DRS信号，则可以在任一第二发送周期的发送窗口的剩余时间内发送一个发现参考信号，反之，当任一信道检测时间内的CCA检测到下行信道空闲，但发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间不足够完整地发送一个DRS信号，则不在任一第二发送周期的发送窗口的剩余时间内发送发现参考信号。
在上述技术方案中，优选地，还包括：在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
在该技术方案中，当该任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到下行信道空闲时，若任一第二发送周期的发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和，则就可以不用在该任一第二发送周期的发送窗口中设置其他信道检测时间，即不用做CCA检测了，因为即使后面的CCA在其他信道检测时间内检测到信道空闲，也不能发送完整的DRS了，而可以按顺序依次在与该任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时 间，以在该至少一个信道检测时间内使用CCA检测下行信道是否空闲。
在上述技术方案中，优选地，还包括：当在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
在该技术方案中，当在任一第二发送周期中的发送窗口内已发送发现参考信号时，则可以在第一发送周期中的剩余时间内释放下行信道，以不再发送发现参考信号，并停止在剩余其他第二发送周期的发送窗口中设置用于检测下行信道是否空闲以发送发现参考信号的信道检测时间，这样，可以保证第一发送周期内，最多发送一次DRS，避免DRS信号发送过于频繁，占用下行信道时间过长而影响下行数据的正常发送。
在上述技术方案中，优选地，还包括：当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在该技术方案中，当在任一第二发送周期的任一信道检测时间内检测到下行信道空闲时，若该任一信道检测时间是该任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间，则不发送发现参考信号，这样，便于将第N个信道检测时间之前的信道检测时间预留给终端以作为终端接收机频点切换时间；当然，若该任一信道检测时间是第N个信道检测时间或第N个信道检测时间之后的信道检测时间，则可以说明已经为终端预留终端接收机频点切换时间了，则可以立即发送发现参考信号。
在上述技术方案中，优选地，当在任一第二发送周期的发送窗口中的 任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，则所述调整所述待发送数据所对应的信道检测机制的参数信息的过程具体包括：将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或所述调整所述待发送数据所对应的信道检测机制的参数信息的过程具体还包括：将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
在该技术方案中，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测下行信道是否空闲时，若需要在该任一第二发送周期的发送窗口内同时发送发现参考信号和下行数据，则可以将第一信道检测机制或第二信道检测机制的参数信息进行调整，使第一信道检测机制和第二信道检测机制都使用第二信道检测机制的参数信息、或第一信道检测机制和第二信道检测机制都使用第一信道检测机制的参数信息，从而使得第一信道检测机制与第二信道检测机制具有相等的下行信道抢占机率，以使第一信道检测机制与第二信道检测机制公平竞争下行信道；当然，还可以将第一信道检测机制和第二信道检测机制调整为分别使用各自的参数信息，以使得发送DRS的LBT机制具有更高的抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述调整方法适用于LTE系统上的非授权频段上的下行信道；以及所述信道检测机制包括先听后说机制。
图6示出了根据本发明的一个实施例的信道占用概率的调整系统的结构示意图。
如图6所示，示出了本发明的一个实施例的信道占用概率的调整系统600，包括：第一调整单元602，根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；第二调整单元604，根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
在该技术方案中，通过根据具有基站功能的设备的待发送数据即该待发送数据是发现参考信号还是下行数据，调整待发送数据对应的LBT机制(即信道检测机制)的参数信息，使得发现参考信号和下行数据所对应的LBT机制使用相同或不同的各项参数信息，从而实现对待发送数据占用下行信道的概率进行调整，使得发送DRS的LBT机制抢占信道的能力得到提高，使发送DRS信号的LBT机制较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道占有机率，从而使发现参考信号更容易占用信道或至少与普通下行数据具有相同的信道占有概率，进而实现及时地发送DRS信号，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度，当然，发送DRS的LBT机制和发送普通下行数据的LBT机制可以是基于帧结构的LBT机制也可以是基于负载的LBT机制。另外，具有基站功能的设备包括基站、通过通信设备(如智能手机等)实现的微小区基站等。
在上述技术方案中，优选地，所述第一调整单元602具体用于：根据所述具有基站功能的设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述具有基站功能的设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
在该技术方案中，通过调整发现参考信号和下行数据所对应的LBT机制中的各项参数信息，可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，或至少与普通下行数据具有相同的信道占有概率，使发现参考信号更容易占用信道，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当发送所述发现参考信号时，使用所述第一信道检测机制检测所述下行信道，当发送所述下行数据时，使用所述第二信道检测机制检测所述下行信道。
在该技术方案中，发送发现参考信号和发送下行数据时，分别使用第一信道检测机制和第二信道检测机制检测下行信道，而第一信道检测机制和第二信道检测机制可以相同也可以不同，例如：可以都是基于帧结构(或基于负载)的LBT机制，但是其中的参数不一样，也可以分别为基于帧结构的LBT机制和基于负载的LBT机制。
在上述技术方案中，优选地，所述第一调整单元602具体还用于：通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
在该技术方案中，当具有基站功能的设备发送发现参考信号或/或下行数据，通过按照上述方式对第一信道检测机制和第二信道检测机制的各项 参数信息进行调整，可以确保能够有力地提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。其具体过程为：将发送DRS的LBT机制的CCA检测时间长度(即粒度)调整为小于或等于发送数据的LBT机制的CCA检测时间长度。例如：当发送数据的LBT机制中CCA检测时间长度为20us(该检测时间长度即为非授权频谱规则中规定的CCA的最小检测时间粒度)时，发送参考信号DRS的LBT机制中的CCA检测时间长度可以是10us，或者当发送数据的LBT机制中CCA检测时间长度是30us，发送参考信号DRS的LBT机制中CCA检测时间长度可以为20us；
将发送参考信号DRS的LBT机制的最大信道占用时间调整为小于或等于发送数据的LBT机制的最大信道占用时间，例如：当发送数据的LBT机制中最大信道占用时间是4ms，发送参考信号DRS的LBT机制中最大信道占用时间可以是3ms；
将发送参考信号DRS的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)调整为小于发送数据的LBT机制的延长的信道检测时间的竞争窗口长度(即q值)，从而使得当LBT机制是基于LBE时，随机数N取较小值的概率高，例如：发送参考信号DRS的LBT机制中q值取4时，发送数据的LBT机制中的q值可以取16到32，这样发送参考信号DRS的LBT机制中随机数N从1～q中取时，其值较小，就意味着在较少个CCA检测时间检测到信道空闲时，就能发送DRS了；
将发送参考信号DRS的LBT机制的CCA信道检测门限(信号强度阈值)调整为大于或等于发送数据LBT机制采用的CCA信道检测门限(信号强度阈值)，即在发送DRS时，只要信道干扰不是太大，就判断信道下行空闲就能发送DRS，而在发送下行数据时，只有在信道干扰很小时，才能判断信道下行空闲，才能发送下行数据。当然，若为了使发送普通下行数据的LBT机制较发送DRS的LBT机制更容易抢占到信道，则可以按照与上述控制方式完全相反的方式调整发送普通下行数据的LBT机制和发送 DRS的LBT机制中的各项参数信息。
在上述技术方案中，优选地，还包括：第一设置单元606，在帧结构中为所述发现参考信号设置第一发送周期；第二设置单元608，在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；第三设置单元610，在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
在该技术方案中，通过在帧结构中为发现参考信号设置一个较大的第一发送周期，并在第一发送周期中设置至少一个较小的第二发送周期，且在每个第二发送周期中的相同位置均设置一个发送窗口，便于在每个发送窗口中设置可以连续检测下行信道是否空闲的至少一个信道检测时间并在至少一个信道检测时间中的每个信道检测时间上设置CCA，从而可以在每个信道检测时间内使用该CCA检测下行信道是否空闲，以在空闲时发送DRS信号。
在上述技术方案中，优选地，所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
在该技术方案中，通过使第一发送周期等于小小区关闭时，发送发现参考信号时使用的除最小周期值(如40ms)之外的其他周期值(如80ms、160ms)，且使第一发送周期大于第一预设发送周期，可以确保第一发送周期为传统DRS发送周期中较大的值，比如160ms，另外，通过使第二发送周期等于异频测量中除最大周期值(如80ms)之外的测量间隔出现的其他 周期值，且使第二发送周期小于第二预设发送周期，可以确保第二发送周期为异频测量中测量间隔出现的周期中的较小值(比如40ms)，这样便于更频繁地检测下行信道是否空闲，以在检测到空闲时，可以及时地发送DRS，同时，也可以提高信道测量结果的准确度，并进一步提高DRS占用信道的能力，防止发送DRS时因为下行信道检测不频繁，而导致错失发送DRS的时机。
在上述技术方案中，优选地，还包括：第一发送单元612，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在该技术方案中，当任一信道检测时间内的CCA检测到下行信道空闲，且发送窗口中的剩余时间大于或等于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间足够完整地发送一个DRS信号，则可以在任一第二发送周期的发送窗口的剩余时间内发送一个发现参考信号，反之，当任一信道检测时间内的CCA检测到下行信道空闲，但发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，说明发送窗口中的剩余时间不足够完整地发送一个DRS信号，则不在任一第二发送周期的发送窗口的剩余时间内发送发现参考信号。
在上述技术方案中，优选地，还包括：第一处理单元614，在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期 的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
在该技术方案中，当该任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到下行信道空闲时，若任一第二发送周期的发送窗口中的剩余时间小于第一信道检测机制的最大信道占用时间和/或第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和，则就可以不用在该任一第二发送周期的发送窗口中设置其他信道检测时间，即不用做CCA检测了，因为即使后面的CCA在其他信道检测时间内检测到信道空闲，也不能发送完整的DRS了，而可以按顺序依次在与该任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间，以在该至少一个信道检测时间内使用CCA检测下行信道是否空闲。
在上述技术方案中，优选地，还包括：第二处理单元616，当在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
在该技术方案中，当在任一第二发送周期中的发送窗口内已发送发现参考信号时，则可以在第一发送周期中的剩余时间内释放下行信道，以不再发送发现参考信号，并停止在剩余其他第二发送周期的发送窗口中设置用于检测下行信道是否空闲以发送发现参考信号的信道检测时间，这样，可以保证第一发送周期内，最多发送一次DRS，避免DRS信号发送过于频繁，占用下行信道时间过长而影响下行数据的正常发送。
在上述技术方案中，优选地，还包括：判断单元618，当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道 检测时间之前的信道检测时间；第二发送单元620，在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在该技术方案中，当在任一第二发送周期的任一信道检测时间内检测到下行信道空闲时，若该任一信道检测时间是该任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间，则不发送发现参考信号，这样，便于将第N个信道检测时间之前的信道检测时间预留给终端以作为终端接收机频点切换时间；当然，若该任一信道检测时间是第N个信道检测时间或第N个信道检测时间之后的信道检测时间，则可以说明已经为终端预留终端接收机频点切换时间了，则可以立即发送发现参考信号。
在上述技术方案中，优选地，所述第一调整单元602还用于：当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或所述第一调整单元602还用于：将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
在该技术方案中，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测下行信道是否空闲时，若需要在该任一第二发送周期的发送窗口内同时发送发现参考信号和下行数据，则可以将第一信道检测机制或 第二信道检测机制的参数信息进行调整，使第一信道检测机制和第二信道检测机制都使用第二信道检测机制的参数信息、或第一信道检测机制和第二信道检测机制都使用第一信道检测机制的参数信息，从而使得第一信道检测机制与第二信道检测机制具有相等的下行信道抢占机率，以使第一信道检测机制与第二信道检测机制公平竞争下行信道；当然，还可以将第一信道检测机制和第二信道检测机制调整为分别使用各自的参数信息，以使得发送DRS的LBT机制具有更高的抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，使发现参考信号更容易占用信道，进而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
在上述技术方案中，优选地，所述调整系统适用于LTE系统上的非授权频段上的下行信道；以及所述信道检测机制包括先听后说机制。
图7示出了根据本发明的一个实施例的具有基站功能的设备的结构示意图。
如图7所示，示出了本发明的一个实施例的具有基站功能的设备700，包括：如上述技术方案中任一项所述的信道占用概率的调整系统600。
在该技术方案中，通过在具有基站功能的设备700上设置信道占用概率的调整系统600，可以使发送DRS的LBT机制具有更高的抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，以减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
图8示出了根据本发明的一个实施例的发现参考信号所对应的先听后说机制中的发送窗口的设置位置的结构示意图；图9示出了根据本发明的一个实施例的发送发现参考信号的示意图。
下面将结合图8和图9详细说明本发明的技术方案：
首先在LAA SCell(小小区)基站的帧结构中设置一个发送DRS的周期，这里称第一周期，第一周期需要取传统DRS发送周期中较大的值，比如160ms，如图8所示。
其次在第一周期中设置一个小周期，这里称第二周期，该小周期为measurement gap(测量间隔)的周期值，比如40ms，如图8所示。
在每40ms中有一个长度为6ms的窗口，且这个6ms以40ms为周期出现的，这个6ms窗口可供发送DRS。
这里的6ms实际上就是measurement gap的长度，其长度正好覆盖传统的PSS、SSS、CRS(5ms)的长度或DRS的发送长度(最大5ms)加上接收机频点切换的时间，但是由于受最大信道占用时间的限制，LAA SCell的DRS的长度不能像传统的DRS一样长，无法占用5ms，这里我们称为DRS长度，其值可能是2.5ms，3ms，4ms等。也就是说我们设计的DRS只需要占用6ms窗口中的一部分来发送即可。
另外，在这种帧结构中从6ms的起始位置开始，将时间分成一些小的粒度，该粒度(即信道检测时间)是用来做CCA检测，为了比有数据发送的eNB(基站)更容易抢占到信道，这里的CCA检测粒度(即信道检测时间)可以设为10us(也可以是20us)。下面我们以DRS长度(即最大信道占用时间)为3ms，信道检测时间为10us为例子说明如何发送DRS的：
从6ms起点开始，每10us做一次CCA检测，只要一个CCA检测检测到下行信道空闲，立马发送DRS。同时，这里的用于发送DRS的LBT机制有点像FBE和LBE的结合，CCA起点是40ms周期，相当于是周期性出现的FBE机制，但是第一个CCA检测到信道忙后，不像FBE一样等到下一个40ms周期的CCA再开始检测，而是像LBE机制一样，继续检测，但是LBE的Extended CCA(延长的信道检测时间)中随机数N取值为1，只要检测到1次信道空闲，则可以占用信道。(这里为了留出终端接收机频点切换的时间，比如需要20us，那么即便同一第二周期内前面有2个检测到信道空闲的CCA，也先不发送，直到该同一第二周期内出现第3个检测到信道空闲的CCA，才发送DRS)
DRS发送3ms之后截止，eNB释放信道。但如果任一第二周期内的任一信道检测时间内的CCA检测到信道空闲时，6ms的剩余时间不满3ms了(或者考虑频点切换，留出20us的时间，则应该是不满3ms+20us了)，那么后面就不用做CCA检测了。因为即使该任一第二周期内的其他任一信 道检测时间内的CCA检测到信道空闲了，也不能发送完整的DRS了。
另外，这第一周期中的4个第二周期中，每个第二周期的发送窗口都会尝试发送DRS，但如果前面一个第二周期的发送窗口中成功发送过DRS了，则后面的第二周期中的发送窗口就不用尝试了。如果前面没有成功发送过DRS，则后面的第二周期中的发送窗口继续尝试。也就是说，第一周期中只要保证发送了一次DRS即可。
图9给出一些发送DRS的例子(例子中10us的CCA检测时间粒度和3ms的最大信道占用时间只是示意图)
Case 1中，在第5个信道检测时间(即第5个CCA时间)内检测到下行信道空闲，且剩余时间大于3ms，则发送DRS。那么在160ms的剩余时间内，eNB不会因为发送DRS而占用信道，也不需要再因为发送DRS而设置CCA时间来检测信道空闲。
Case 2中，第9个信道检测时间内的CCA检测到下行信道空闲，且剩余时间大于3ms，则发送DRS。那么在160ms的剩余时间内，eNB不会因为发送DRS而占用信道，也不需要再因为发送DRS而设置CCA时间来检测信道空闲。
Case 3中，第20个信道检测时间内的CCA检测到下行信道空闲时，剩余时间刚好只剩3ms了，则发送DRS之后，6ms的窗口时间结束。
Case 4中，当6ms窗口时间只剩3ms时，在第二周期的发送窗口中的至少一个信道检测时间(即至少一个CCA时间)内仍未检测到下行信道空闲，则就不用在该第二周期的发送窗口中设置其他信道检测时间，也就不用使用CCA时间做检测了，因为即使检测到下行信道空闲，也不能发送完整的DRS了。那么等到下一个40ms周期中的6ms窗口开始时，再进行发送DRS的CCA检测。
另外，当eNB在这些个6ms窗口也有数据发送时，三种解决方案：
发送发现参考信号的先听后说机制和发送下行数据的先听后说机制分别使用各自的参数信息；
发送发现参考信号的先听后说机制和发送下行数据的先听后说机制都使用发送下行数据的先听后说机制的参数信息。
发送下行数据的先听后说机制和发送发现参考信号的先听后说机制都使用发送发现参考信号的先听后说机制的参数信息。
以上结合附图详细说明了本发明的技术方案，可以提高发送DRS的LBT机制抢占信道的能力，使其较发送普通下行数据的LBT机制更容易抢占到信道，从而使发现参考信号更容易占用信道或至少与发送普通下行数据的LBT机制具有相同的信道抢占机率，进而实现及时发送DRS，从而减少终端测量参考信号DRS、进行小区识别、下行同步、时频估计时消耗的功耗，提高准确度。
图10示出了根据本发明的实施例的设备的结构示意图。如图10所示，所述设备可以包括：至少一个收发装置503，至少一个处理器501，例如CPU，存储器504和至少一个通信总线502。
其中，上述通信总线502用于连接上述收发装置503、处理器501和存储器504。
上述存储器504可以是高速RAM存储器，也可为非不稳定的存储器(non-volatile memory)，例如磁盘存储器。上述存储器504还用于存储一组程序代码，上述收发装置503和处理器501用于调用存储器504中存储的程序代码，执行如下操作：
所述处理器501，用于根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；
所述处理器501，还用于根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
在上述技术方案中，优选地，所述处理器501根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤具体包括：
根据所述设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时 间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
在上述技术方案中，优选地，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当所述收发装置503用于发送所述发现参考信号时，所述处理器501用于使用所述第一信道检测机制检测所述下行信道，当收发装置503用于发送所述下行数据时，所述处理器501用于使用所述第二信道检测机制检测所述下行信道。
在上述技术方案中，优选地，所述处理器501根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息步骤还包括：
通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：
将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或
将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或
将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
在上述技术方案中，优选地，所述处理器501还用于执行以下操作：
在帧结构中为所述发现参考信号设置第一发送周期；
在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；
在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送 窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
在上述技术方案中，优选地，所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；
所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
在上述技术方案中，优选地，所述处理器501还执行如下步骤：
当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在上述技术方案中，优选地，所述处理器501还执行如下步骤：
在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：
所述第一发送周期中设置有至少一个第二发送周期，且
所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或
所述第一发送周期中设置有至少一个第二发送周期，且
所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检 测机制的最大信道占用时间与终端接收机频点切换时间之和。
在上述技术方案中，优选地，所述处理器501还执行如下步骤：
当收发装置503在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止收发装置503发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
在上述技术方案中，优选地，所述处理器501还执行如下步骤：
当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；
在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，
其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
在上述技术方案中，优选地，所述处理器501根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤具体包括：
当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，
将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或
将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或
将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或
所述处理器501根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤还具体包括：
将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或
将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或
将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或
将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
在上述技术方案中，优选地，所述设备适用于LTE系统上的非授权频段上的下行信道。
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 (36)

  1. 一种信道占用概率的调整方法，用于具有基站功能的设备，其特征在于，包括：
    根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；
    根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
  2. 根据权利要求1所述的信道占用概率调整方法，其特征在于，
    所述根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息，具体包括：
    根据所述具有基站功能的设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述具有基站功能的设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
  3. 根据权利要求1所述的信道占用概率调整方法，其特征在于，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当发送所述发现参考信号时，使用所述第一信道检测机制检测所述下行信道，当发送所述下行数据时，使用所述第二信道检测机制检测所述下行信道。
  4. 根据权利要求3所述的信道占用概率的调整方法，其特征在于，
    通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：
    将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或
    将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
    将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或
    将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
  5. 根据权利要求4所述的信道占用概率的调整方法，其特征在于，还包括：
    在帧结构中为所述发现参考信号设置第一发送周期；
    在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；
    在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
  6. 根据权利要求5所述的信道占用概率的调整方法，其特征在于，
    所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；
    所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
  7. 根据权利要求5所述的信道占用概率的调整方法，其特征在于，还包括：
    当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
  8. 根据权利要求7所述的信道占用概率的调整方法，其特征在于，还包括：
    在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：所述第一发送周期中设置有至少一个第二发送周期，且
    所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或
    所述第一发送周期中设置有至少一个第二发送周期，且所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
  9. 根据权利要求7所述的信道占用概率的调整方法，其特征在于，还包括：
    当在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
  10. 根据权利要求5至9中任一项所述的信道占用概率的调整方法，其特征在于，还包括：
    当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空 闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；
    在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，
    其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
  11. 根据权利要求5至9中任一项所述的信道占用概率的调整方法，其特征在于，
    当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，则
    所述调整所述待发送数据所对应的信道检测机制的参数信息的过程具体包括：
    将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或
    将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
    将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或
    将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或
    所述调整所述待发送数据所对应的信道检测机制的参数信息的过程具体还包括：
    将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或
    将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或
    将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目； 和/或
    将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
  12. 根据权利要求1至9中任一项所述的信道占用概率的调整方法，其特征在于，
    所述调整方法适用于LTE系统上的非授权频段上的下行信道。
  13. 一种信道占用概率的调整系统，用于具有基站功能的设备，其特征在于，包括：
    第一调整单元，根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；
    第二调整单元，根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
  14. 根据权利要求13所述的信道占用概率调整系统，其特征在于，
    所述第一调整单元具体用于：
    根据所述具有基站功能的设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述具有基站功能的设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
  15. 根据权利要求13所述的信道占用概率调整系统，其特征在于，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当发送所述发现参考信号时，使用所述第一信道检测机制检测所述下行信道，当发送所述下行数据时，使用所述第二信道检测机制检测所述下行信道。
  16. 根据权利要求15所述的信道占用概率的调整系统，其特征在于，
    所述第一调整单元具体还用于：
    通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二 信道检测机制占用所述下行信道的概率：
    将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或
    将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
    将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或
    将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
  17. 根据权利要求16所述的信道占用概率的调整系统，其特征在于，还包括：
    第一设置单元，在帧结构中为所述发现参考信号设置第一发送周期；
    第二设置单元，在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；
    第三设置单元，在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时间，用于检测所述下行信道是否空闲。
  18. 根据权利要求17所述的信道占用概率的调整系统，其特征在于，
    所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；
    所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且 所述发送窗口的长度等于异频测量中所述测量间隔的长度。
  19. 根据权利要求17所述的信道占用概率的调整系统，其特征在于，还包括：
    第一发送单元，当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
  20. 根据权利要求19所述的信道占用概率的调整系统，其特征在于，还包括：
    第一处理单元，在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：
    所述第一发送周期中设置有至少一个第二发送周期，且
    所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或
    所述第一发送周期中设置有至少一个第二发送周期，且
    所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
  21. 根据权利要求19所述的信道占用概率的调整系统，其特征在于，还包括：
    第二处理单元，当在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他 第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
  22. 根据权利要求17至21中任一项所述的信道占用概率的调整系统，其特征在于，还包括：
    判断单元，当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；
    第二发送单元，在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，
    其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
  23. 根据权利要求17至21中任一项所述的信道占用概率的调整系统，其特征在于，
    所述第一调整单元还用于：
    当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，
    将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或
    将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
    将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或
    将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或
    所述第一调整单元还用于：
    将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时 间粒度；和/或
    将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或
    将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或
    将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
  24. 根据权利要求13至21中任一项所述的信道占用概率的调整系统，其特征在于，
    所述调整系统适用于LTE系统上的非授权频段上的下行信道。
  25. 一种设备，其特征在于，所述设备包括通信总线、收发装置、存储器以及处理器，其中：
    所述通信总线，用于实现所述收发装置、所述存储器以及所述处理器之间的连接通信；
    所述存储器中存储一组程序代码，且处理器调用存储器中存储的程序代码，用于执行以下操作：
    所述处理器，用于根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息；
    所述处理器，还用于根据调整后的所述参数信息，调整所述待发送数据占用下行信道的概率，其中，所述待发送数据的数据类型包括：发现参考信号和/或下行数据。
  26. 根据权利要求25所述的设备，其特征在于，
    所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤具体包括：
    根据所述设备的待发送数据的数据类型，调整以下至少一种参数或其组合：所述待发送数据所对应的信道检测机制的信道检测时间粒度、所述待发送数据所对应的信道检测机制的最大信道占用时间、当所述设备使用基于负载的信道检测机制发送所述待发送数据时使用的延长的信道检测时间的竞争窗口长度、所述待发送数据所对应的信道检测机制使用的用于判断所述下行信道是否空闲的信号强度阈值。
  27. 根据权利要求25所述的设备，其特征在于，所述信道检测机制包括：第一信道检测机制和第二信道检测机制，其中，当所述收发装置用于发送所述发现参考信号时，所述处理器用于使用所述第一信道检测机制检测所述下行信道，当收发装置用于发送所述下行数据时，所述处理器用于使用所述第二信道检测机制检测所述下行信道。
  28. 根据权利要求27所述的设备，其特征在于，
    所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息步骤还包括：
    通过以下过程调整所述待发送数据所对应的信道检测机制的参数信息，以使所述发现参考信号占用所述下行信道的概率大于或等于所述第二信道检测机制占用所述下行信道的概率：
    将所述第一信道检测机制的第一信道检测时间粒度调整为小于或等于所述第二信道检测机制的第二信道检测时间粒度；和/或
    将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
    将所述第一信道检测机制使用的延长的信道检测时间的第一竞争窗口长度调整为小于或等于所述第二信道检测机制使用的延长的信道检测时间的第二竞争窗口长度；和/或
    将所述第一信道检测机制使用的用于判断所述下行信道是否空闲的第一信号强度阈值调整为大于或等于所述第二信道检测机制使用的用于判断所述下行信道是否空闲的第二信号强度阈值。
  29. 根据权利要求28所述的设备，其特征在于，所述处理器还用于执行以下操作：
    在帧结构中为所述发现参考信号设置第一发送周期；
    在所述第一发送周期中为所述发现参考信号设置至少一个第二发送周期；
    在至少一个所述第二发送周期中的每个所述第二发送周期中的相同位置均设置一个发送窗口，并按顺序依次在每个所述第二发送周期中的发送窗口中设置用于连续检测所述下行信道是否空闲的至少一个信道检测时 间，用于检测所述下行信道是否空闲。
  30. 根据权利要求29所述的设备，其特征在于，
    所述第一发送周期大于第一预设发送周期，其中，所述第一预设发送周期等于所述具有基站功能的设备所在的服务小区中的小小区关闭时发送所述发现参考信号的最小周期值，且所述第一发送周期等于所述小小区关闭时发送所述发现参考信号时使用的除所述最小周期值之外的其他周期值；
    所述第二发送周期小于第二预设发送周期，其中，所述第二预设发送周期等于异频测量中测量间隔出现的最大周期值，所述第二发送周期等于异频测量中除所述最大周期值之外的所述测量间隔出现的其他周期值，且所述发送窗口的长度等于异频测量中所述测量间隔的长度。
  31. 根据权利要求29所述的设备，其特征在于，所述处理器还执行如下步骤：
    当在任一第二发送周期的发送窗口中的任一信道检测时间内检测到所述下行信道空闲、且所述任一第二发送周期的发送窗口中的剩余时间大于或等于所述第一信道检测机制的最大信道占用时间和/或所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和时，在所述任一第二发送周期的发送窗口的剩余时间内发送所述发现参考信号，其中，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
  32. 根据权利要求31所述的设备，其特征在于，所述处理器还执行如下步骤：
    在所述任一第二发送周期的发送窗口中的至少一个信道检测时间内仍未检测到所述下行信道空闲时，且在满足以下条件的情况下，停止在所述任一第二发送周期的发送窗口中设置其他信道检测时间，并在与所述任一第二发送周期相邻的其他第二发送周期的发送窗口中设置至少一个信道检测时间：
    所述第一发送周期中设置有至少一个第二发送周期，且
    所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间；和/或
    所述第一发送周期中设置有至少一个第二发送周期，且
    所述任一第二发送周期的发送窗口中的剩余时间小于所述第一信道检测机制的最大信道占用时间与终端接收机频点切换时间之和。
  33. 根据权利要求31所述的设备，其特征在于，所述处理器还执行如下步骤：
    当收发装置在所述任一第二发送周期中的发送窗口内已发送所述发现参考信号时，在所述第一发送周期中的剩余时间内释放所述下行信道，停止收发装置发送所述发现参考信号，且当所述第一发送周期中设置有至少一个第二发送周期时，停止在所述第一发送周期中的剩余时间内的剩余其他第二发送周期的发送窗口中设置用于检测所述下行信道是否空闲，用于发送所述发现参考信号的信道检测时间。
  34. 根据权利要求29至33中任一项所述的设备，其特征在于，所述处理器还执行如下步骤：
    当在任一第二发送周期的任一信道检测时间内检测到所述下行信道空闲时，判断所述任一信道检测时间是否为所述任一第二发送周期的发送窗口中的第N个信道检测时间之前的信道检测时间；
    在判断结果为是时，不发送所述发现参考信号，为终端预留终端接收机频点切换时间，否则，发送所述发现参考信号，其中，所述终端接收机频点切换时间包括：(N-1)个所述信道检测时间的时间之和，
    其中，N为正整数，所述任一第二发送周期为所述第一发送周期中的任一第二发送周期。
  35. 根据权利要求29至31中任一项所述的设备，其特征在于，
    所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤具体包括：
    当在任一第二发送周期的发送窗口中的任一信道检测时间内检测所述下行信道是否空闲时，若在所述任一第二发送周期的发送窗口内需同时发送所述发现参考信号和所述下行数据，
    将所述第一信道检测时间粒度调整为小于或等于所述第二信道检测时间粒度；和/或
    将所述第一信道检测机制的最大信道占用时间调整为小于或等于所述第二信道检测机制的最大信道占用时间；和/或
    将所述第一竞争窗口数目调整为小于或等于所述第二竞争窗口数目；和/或
    将所述第一信号强度阈值调整为大于或等于所述第二信号强度阈值；或
    所述处理器根据所述具有基站功能的设备的待发送数据的数据类型，调整所述待发送数据所对应的信道检测机制的参数信息的步骤还具体包括：
    将所述第二信道检测时间粒度调整为大于或等于所述第一信道检测时间粒度；和/或
    将所述第二信道检测机制的最大信道占用时间调整为大于或等于所述第一信道检测机制的最大信道占用时间；和/或
    将所述第二竞争窗口数目调整为大于或等于所述第一竞争窗口数目；和/或
    将所述第二信号强度阈值调整为小于或等于所述第一信号强度阈值。
  36. 根据权利要求25至33中任一项所述的设备，其特征在于，
    所述设备适用于LTE系统上的非授权频段上的下行信道。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107113878A (zh) * 2014-09-10 2017-08-29 瑞典爱立信有限公司 无线电接入节点、通信终端及其中执行的方法
US11350456B2 (en) 2017-12-08 2022-05-31 Telefonaktiebolaget Lm Ericsson (Publ) Network node and method for evaluating channel of license-assisted access cell in wireless communication network

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104717687B (zh) * 2015-04-09 2018-07-27 宇龙计算机通信科技(深圳)有限公司 信道占用概率的调整方法、调整系统和设备
US10250420B2 (en) * 2015-04-10 2019-04-02 Motorola Mobility Llc Method and apparatus for reception of control signaling
US10200904B2 (en) * 2015-06-24 2019-02-05 Qualcomm Incorporated Techniques for transmitting on multiple carriers of a shared radio frequency spectrum band
CN105101446B (zh) * 2015-06-30 2017-12-15 宇龙计算机通信科技(深圳)有限公司 一种用于非授权频段的冲突避免方法及装置
CN104994591B (zh) * 2015-07-08 2019-06-11 宇龙计算机通信科技(深圳)有限公司 信道占用概率的调整方法、调整系统和基站
CN107925494B (zh) * 2015-07-10 2019-11-29 Lg 电子株式会社 在支持未授权带的无线接入系统中发送发现参考信号的方法和设备
US10742562B2 (en) * 2015-07-16 2020-08-11 Samsung Electronics Co., Ltd. Method and apparatus for adaptive control of contention window in LAA
CN106411805B (zh) * 2015-07-28 2020-06-16 中兴通讯股份有限公司 一种非授权载波的同步信号的发送方法和基站
CN105634859B (zh) * 2015-07-31 2019-08-02 宇龙计算机通信科技(深圳)有限公司 基于负载的lbt信道检测方法及系统、基站和终端
CN106454854A (zh) * 2015-08-07 2017-02-22 中兴通讯股份有限公司 一种非授权频谱的频谱共享方法和装置
CN106452708B (zh) * 2015-08-07 2021-07-06 中兴通讯股份有限公司 一种非授权多载波先听后说执行方法和装置
CN106452704B (zh) * 2015-08-13 2020-10-16 中国移动通信集团公司 一种发现参考信号的发送方法、基站及终端
CN105050190B (zh) * 2015-08-14 2018-11-30 宇龙计算机通信科技(深圳)有限公司 基于非授权频段的发现参考信号配置方法、装置和基站
EP3755104A1 (en) * 2015-08-14 2020-12-23 Telefonaktiebolaget LM Ericsson (publ) First communication device and methods therein, for sending one or more control signals to a second communication device
CN107113817A (zh) * 2015-08-28 2017-08-29 华为技术有限公司 数据传输方法、装置、基站及用户设备
WO2017050363A1 (en) * 2015-09-23 2017-03-30 Sony Mobile Communications Inc Contention window adjustment in unlicensed cellular radio network
JPWO2017051726A1 (ja) * 2015-09-24 2018-08-30 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
JP2017063324A (ja) * 2015-09-24 2017-03-30 株式会社Ｎｔｔドコモ 無線基地局、ユーザ端末及び無線通信方法
EP3331310B1 (en) 2015-09-25 2020-11-11 Huawei Technologies Co., Ltd. User equipment, base station, and method for transmitting and receiving data channel
CN106559826A (zh) * 2015-09-25 2017-04-05 中兴通讯股份有限公司 非授权载波测量间隙配置及测量方法及相应基站、终端
CN106559796B (zh) 2015-09-25 2020-04-17 上海诺基亚贝尔股份有限公司 工作于非授权频段的通信设备及其执行的方法
CN105338651A (zh) * 2015-09-25 2016-02-17 宇龙计算机通信科技(深圳)有限公司 配置有defer period的信道检测方法及装置
WO2017049631A1 (zh) * 2015-09-25 2017-03-30 华为技术有限公司 一种通信信号的处理方法、装置及通信服务器
CN106559882B (zh) * 2015-09-25 2021-12-10 中兴通讯股份有限公司 一种授权协助接入设备竞争接入参数配置的方法及装置
CN115426657A (zh) * 2015-09-25 2022-12-02 中兴通讯股份有限公司 一种确定lbt模式的方法、装置和实现lbt模式切换的方法
WO2017063779A1 (en) * 2015-10-16 2017-04-20 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for discovery reference signal aligned scheduling
CN108353369B (zh) * 2015-10-23 2020-12-04 瑞典爱立信有限公司 用于自适应发现信号测量定时配置的设备和方法
CN111526528B (zh) * 2015-10-28 2024-04-05 中兴通讯股份有限公司 竞争窗调整方法和装置
US10492225B2 (en) * 2015-11-05 2019-11-26 Intel IP Corporation Listen before talk for discovery reference signal transmission in unlicensed spectrum
CN105451251B (zh) * 2015-11-06 2019-01-11 东莞酷派软件技术有限公司 一种非授权频谱的drs配置方法、测量方法和相关设备
CN106686604A (zh) * 2015-11-06 2017-05-17 中兴通讯股份有限公司 一种信号处理方法及基站
CN105611540A (zh) * 2015-12-17 2016-05-25 深圳市金立通信设备有限公司 一种信道检测的控制方法及相关设备
JP6731484B2 (ja) 2015-12-24 2020-07-29 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． チャネル予約信号を送信する方法、及び基地局
US10292182B2 (en) 2016-02-16 2019-05-14 Hfi Innovation Inc. Listen before talk channel access procedure for uplink LAA
US10045376B2 (en) 2016-02-16 2018-08-07 Mediatek Inc. Channel access procedure and QoS provisioning for uplink LAA
CN105682102B (zh) * 2016-03-17 2019-03-15 北京北方烽火科技有限公司 一种免授权信道竞争参数生成方法和装置
CN108781149B (zh) * 2016-03-22 2021-11-09 苹果公司 用于非授权上行链路和所调度的传输的共存的装置
CN108781424B (zh) * 2016-03-31 2021-02-02 瑞典爱立信有限公司 使用先听后说协议对信道接入进行定时校正的方法和设备
US10492168B2 (en) 2016-05-03 2019-11-26 Telefonaktiebolaget Lm Ericsson (Publ) Paging detection utilizing a discovery reference signal (DRS) within a subframe time window
EP3533250A4 (en) 2016-11-11 2020-08-19 Telefonaktiebolaget LM Ericsson (publ) METHOD AND APPARATUS INTENDED TO FACILITATE DATA TRANSMISSION
US20200068378A1 (en) * 2016-11-18 2020-02-27 Nokia Technologies Oy Opportunistic use of drs instances in lte-u stand alone systems
CN108737049B (zh) * 2017-04-24 2020-11-06 中国移动通信有限公司研究院 辅助参考信号的发送、接收方法、网络侧设备及终端
CN109803395A (zh) 2017-11-17 2019-05-24 索尼公司 无线通信系统中的装置和方法、计算机可读存储介质
CN108430114B (zh) * 2018-01-26 2021-07-20 宇龙计算机通信科技(深圳)有限公司 信道检测方法、信道检测系统、基站和终端
CN112106309A (zh) * 2018-05-10 2020-12-18 康维达无线有限责任公司 新无线电非许可频谱中的波束故障恢复
CN109104772B (zh) * 2018-09-12 2019-11-15 中国地质大学（武汉） 一种支持QoS的自适应MAC接入过程控制方法及系统
CN110971362B (zh) * 2018-09-28 2021-07-16 华为技术有限公司 一种发现参考信号发送方法及装置
CN109863807B (zh) * 2019-01-03 2023-12-12 北京小米移动软件有限公司 信道检测方法及装置
CN111757376B (zh) * 2019-03-29 2022-06-24 华为技术有限公司 无线链路质量或波束质量评估方法及装置
CN112788607B (zh) * 2019-11-07 2022-11-11 维沃移动通信有限公司 共享信道占用时间cot的信息传输方法、通信设备
CN112788635A (zh) * 2019-11-08 2021-05-11 索尼公司 用于无线通信的电子设备和方法、计算机可读存储介质
CN111770534B (zh) * 2020-07-08 2021-04-02 中国人民解放军国防科技大学 无线自主选频系统动态接入控制方法及相关组件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012122849A1 (zh) * 2011-03-16 2012-09-20 电信科学技术研究院 上行资源分配方法和设备
CN103916867A (zh) * 2012-12-31 2014-07-09 中国移动通信集团设计院有限公司 一种确定控制信道容量的方法和装置
CN104243119A (zh) * 2014-09-01 2014-12-24 大唐移动通信设备有限公司 一种信道资源分配方法和系统
CN104717687A (zh) * 2015-04-09 2015-06-17 宇龙计算机通信科技(深圳)有限公司 信道占用概率的调整方法、调整系统和设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070214379A1 (en) * 2006-03-03 2007-09-13 Qualcomm Incorporated Transmission control for wireless communication networks
CN104469914B (zh) * 2014-12-10 2018-05-15 宇龙计算机通信科技(深圳)有限公司 信道检测方法及系统、基站和终端
CN104486013B (zh) * 2014-12-19 2017-01-04 宇龙计算机通信科技(深圳)有限公司 信道检测方法、信道检测系统、终端和基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012122849A1 (zh) * 2011-03-16 2012-09-20 电信科学技术研究院 上行资源分配方法和设备
CN103916867A (zh) * 2012-12-31 2014-07-09 中国移动通信集团设计院有限公司 一种确定控制信道容量的方法和装置
CN104243119A (zh) * 2014-09-01 2014-12-24 大唐移动通信设备有限公司 一种信道资源分配方法和系统
CN104717687A (zh) * 2015-04-09 2015-06-17 宇龙计算机通信科技(深圳)有限公司 信道占用概率的调整方法、调整系统和设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LIU, YUN ET AL.: "A Novel Spectrum Detecting Algorithm for Cognitive Radio Based on the Characteristics of Authorized Channel", ACTA PHYSICA SINICA, vol. 62, no. 7, 31 December 2013 (2013-12-31), pages 078406 - 1 -078406-9 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107113878A (zh) * 2014-09-10 2017-08-29 瑞典爱立信有限公司 无线电接入节点、通信终端及其中执行的方法
CN107113878B (zh) * 2014-09-10 2020-09-22 瑞典爱立信有限公司 无线电接入节点、通信终端及其中执行的方法
US11350456B2 (en) 2017-12-08 2022-05-31 Telefonaktiebolaget Lm Ericsson (Publ) Network node and method for evaluating channel of license-assisted access cell in wireless communication network

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