WO2017024629A1 - Unlicensed frequency spectrum channel detecting method and device - Google Patents

Unlicensed frequency spectrum channel detecting method and device Download PDF

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Publication number
WO2017024629A1
WO2017024629A1 PCT/CN2015/088488 CN2015088488W WO2017024629A1 WO 2017024629 A1 WO2017024629 A1 WO 2017024629A1 CN 2015088488 W CN2015088488 W CN 2015088488W WO 2017024629 A1 WO2017024629 A1 WO 2017024629A1
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Prior art keywords
channel
period
duration
unlicensed spectrum
idle
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PCT/CN2015/088488
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French (fr)
Chinese (zh)
Inventor
李明菊
朱亚军
张云飞
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宇龙计算机通信科技(深圳)有限公司
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Publication of WO2017024629A1 publication Critical patent/WO2017024629A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels

Definitions

  • the present invention relates to the field of communications, and in particular, to an unlicensed spectrum channel detecting method and apparatus.
  • 3GPP 3rd Generation Partnership Project
  • 3GPP 3rd Generation Partnership Project
  • LTE Long Term Evolution
  • LAA LTE Assisted Access
  • LAA Long Term Evolution
  • TDD Time Division Duplexing, Time Division Duplex, TDD
  • uplink and downlink transmissions can only be supplemented by the carrier aggregation technology.
  • the TDD mode can be used by DC (Dual Connectivity) or can be used independently. As shown in Figure 1 below.
  • LTE operating in unlicensed spectrum has the ability to provide higher spectral efficiency and greater coverage, while seamlessly switching data traffic between licensed and unlicensed spectrum based on the same core network. For the user, this means a better broadband experience, higher speed, better stability and mobility.
  • CSMA/CA Carrier
  • Sense Multiple Access/Collision Detection which is the carrier sense multiple access/collision detection method (CSMA/CA for short).
  • the basic principle of this method is that an AP (Access Point, AP for short) or a terminal must monitor and detect whether there is an AP or a terminal transmitting/receiving signaling or data before sending signaling or data. Yes, continue to listen until it is not 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.
  • AP Access Point
  • the uplink and downlink transmissions between the base station and the user do not need to consider whether there is a base station or a user transmitting. If LTE is used on the unlicensed spectrum and does not consider whether other devices are using unlicensed spectrum, it will cause great interference to the WiFi device. Because LTE transmits as long as there is a service, and there is no monitoring rule, the WiFi device cannot transmit when the LTE has a service transmission, and can only transmit when the LTE service transmission is completed, and the channel idle state can be detected.
  • CCA Cerar Channel Assessment
  • CCA Channel idle detection
  • the channel is occupied.
  • the transmission point does not send signals and data during the idle time, so that other transmission points can preempt the channel.
  • the CCA time occurs again. If the channel is detected to be busy, the channel is not occupied, and the channel is detected again until the next CCA time occurs.
  • the problem with the current solution is that if the CCA time of the two operators is staggered and periodically repeated, there will be an operator's LAA cell always occupying the channel, while the other operator's LAA cell always preempts. In the case of the channel, the operators cannot compete for a fair channel and the data transmission delay increases.
  • a technical problem to be solved by embodiments of the present invention is to provide an unlicensed spectrum channel detecting method and apparatus. It can control the fair competition of unlicensed spectrum channels of multiple network devices and reduce the delay of data transmission.
  • an embodiment of the present invention provides an unlicensed spectrum channel detecting party. Law, including:
  • the listening period is the first period
  • the embodiment of the present invention further provides an unlicensed spectrum channel detecting apparatus, including:
  • a monitoring module configured to monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period
  • an adjusting module configured to adjust a listening period to a second period when the N consecutive first periods are monitored to be in a busy state; wherein, the first period is greater than the second period, where ⁇ 2 and is an integer.
  • 1 is a conventional method for competing for unlicensed spectrum channels
  • FIG. 2 is a schematic flowchart of a method for detecting an unlicensed spectrum channel according to an embodiment of the present invention
  • FIG. 3 is another schematic flowchart of an unlicensed spectrum channel detecting method according to an embodiment of the present invention.
  • FIG. 4 is a sequence diagram of a method for adjusting a second channel occupation duration and a second channel idle duration in a second period according to an embodiment of the present invention
  • FIG. 5 is a sequence diagram of another method for adjusting a second channel occupation duration and a second channel idle duration in a second period according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of an unlicensed spectrum channel detecting apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for detecting an unlicensed spectrum channel according to an embodiment of the present invention.
  • an execution entity may be a base station or a terminal, which is hereinafter referred to as a network device, and the method includes:
  • S201 Monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period.
  • the LTE communication system may allocate the unlicensed spectrum to the designated cell by means of carrier aggregation, and the base station and the terminal in the cell use the unlicensed spectrum channel (uplink channel or downlink channel) to transmit data (data includes control signaling and data.
  • the unlicensed spectrum channel uplink channel or downlink channel
  • data data includes control signaling and data.
  • the network device presets the listening time period, and the listening time period is a certain time interval.
  • the listening period is the first period, that is, the appearance period of the listening period is the first period, that is, the duration of the two adjacent listening periods is The first cycle.
  • the channel state of the unlicensed spectrum channel is monitored, the channel state is divided into a busy state and an idle state, and the busy state indicates that the unlicensed spectrum channel is occupied by other devices. Data cannot be transmitted on an unlicensed spectrum channel; the idle state indicates that the unlicensed spectrum channel is not occupied by other devices, and data can be transmitted on the unlicensed spectrum channel at this time.
  • the frequency band of the unlicensed spectrum channel may be a pre-specified frequency band, for example, a certain range of unlicensed frequency bands is specified as the working frequency band of the unlicensed frequency band according to the bandwidth of the cell.
  • the network device When determining that the unlicensed spectrum channel is idle, the network device occupies the unlicensed spectrum channel for a certain period of time, and then releases the unlicensed spectrum channel for a certain period of time, and the network device transmits the number of times during the channel occupation period. According to the data, no data is transmitted during the idle time of the channel.
  • the channel occupation duration in the first period is referred to as the first channel occupation duration
  • the channel idle duration in the first period is referred to as the first channel idle duration
  • the channel occupancy duration in the second period is referred to as the first
  • the duration of the second channel is occupied
  • the idle time of the channel in the second period is the idle time of the second channel.
  • the period of the monitoring is adjusted to a second period, where the first period is greater than the second period, and N ⁇ 2 Is an integer.
  • the network device monitors the unlicensed spectrum channel as a busy state in the N listening period according to the first period, and the N listening period is a continuous listening period, where N ⁇ 2 and is an integer.
  • the counter adds 1; when the network device monitors the unlicensed spectrum channel as the idle state during the listening period according to the first period, The timer is cleared.
  • the first period is adjusted to the second period, that is, the occurrence period of the monitoring is the second period, that is, the appearance period of the listening period is the second period, first The period is greater than the second period.
  • the first period is 4 ms
  • the second period is 2 ms
  • N is 3.
  • the first period of 4ms is adjusted to 2ms, which continuously indicates that multiple listening time periods satisfy the adjacent relationship.
  • the network device monitors the channel state of the unlicensed spectrum channel in the listening period by using a higher frequency, thereby improving the chance of the network device competing for the unlicensed spectrum channel, and satisfying different operators. Requirements for competing for unlicensed spectrum channel fairness.
  • the embodiment of the present invention periodically monitors the channel state of the unlicensed spectrum channel during the listening period, and reduces the period of the listening period when the number of times the unlicensed spectrum channel is continuously busy is reached a preset number of times.
  • the channel state of the unlicensed spectrum channel is monitored by using a higher frequency to improve the chance of the network device competing for the unlicensed spectrum channel, and the fairness of competing for the unlicensed spectrum channel between different operators is met.
  • FIG. 3 is a schematic flowchart of another method for detecting an unlicensed spectrum channel according to an embodiment of the present invention.
  • an execution entity of an unlicensed spectrum channel detecting method may be a base station or a terminal.
  • the method includes:
  • S301 Determine a value of N according to a data volume size and/or a delay requirement of the data to be transmitted. The larger the amount of data to be transmitted and/or the higher the delay requirement, the smaller N is.
  • the network device acquires the data size and/or the delay requirement of the data to be transmitted, determines the value of N according to the data size and/or the delay requirement of the data to be transmitted, and the data size of the data to be transmitted and/or Or the delay requirement is negatively correlated, that is, the larger the amount of data to be transmitted and/or the higher the delay requirement (instant delay), the smaller the N, the smaller the amount of data to be transmitted and/or the delay requirement.
  • the lower the N the bigger the N.
  • the negative correlation includes a proportional reduction relationship or an equal reduction relationship, and the present invention is not limited.
  • the delay requirement of the data to be transmitted is not more than 2 ms, and the setting N is 5; the delay of the data to be transmitted is required to be no more than 5 ms, and the setting N is 10.
  • the data size of the data to be transmitted is 2M, the delay requirement is not more than 2ms, and the setting N is 5; the data volume of the data to be transmitted is 1M, the delay requirement is not more than 5ms, and the setting N is 10.
  • the method for setting the N by the network device may be: the network device configures multiple candidate values for the N, and selects the target candidate value as the value of N from the multiple candidate values according to the semi-static manner.
  • the network device obtains a scheduling period of the semi-static mode, and selects one of the preset multiple candidate values as the target candidate value of the N according to the scheduling period, where the target candidate value is selected from the multiple candidate values according to the sequence. Make a selection in order.
  • the period of the semi-persistent scheduling is 2 hours
  • the network device pre-configures a plurality of candidate values for the N: 10, 8, 6, and 4.
  • the network device selects one candidate value from the plurality of candidate values as a target candidate every 2 hours.
  • the value, the way of selection can be cycled in order.
  • the first period is an integer multiple of the second period.
  • the first period is twice the second period, the first period is 4 ms, and the second period is 2 ms.
  • S302. Monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period.
  • the first period is an appearance period of the listening period
  • the listening period is a preset time period
  • the network device monitors the channel state of the unlicensed spectrum channel in the listening period according to the first period, and the unlicensed spectrum channel The status is divided into an idle state and a busy state.
  • the method for the network device to identify the channel state of the unlicensed spectrum channel may be: determining the start time t1 and the end time t2 of the current listening period, and the network device measures the received power in the time from t1 to t2, if the received power is greater than the preset When the power value is used, it is determined that the unlicensed spectrum channel is in a busy state during the current listening period; if the received power is not greater than the preset power value, it is determined that the unlicensed spectrum channel is in an idle state during the current listening period.
  • the network device when the network device monitors that the unlicensed spectrum channel is in a busy state during the listening period, the count value is incremented by one, and when the network device detects that the unlicensed spectrum channel is in an idle state during the listening period, the count value is cleared.
  • the network device adjusts the first period to the second period, where N is an integer greater than or equal to 2.
  • the timer is cleared to get the current count value of 0, and the network device continuously listens to the unlicensed spectrum channel in the third to fifth consecutive times according to the first period.
  • the number of times that the unlicensed spectrum channel is busy is continuously monitored is 3, and the network device adjusts the first period of the listening period to the second period.
  • the unlicensed spectrum channel is occupied when the unlicensed spectrum channel is in an idle state during the listening period according to the second period.
  • the network device occupies an unlicensed spectrum channel when the unlicensed spectrum channel is idle in the listening period according to the second period, and the time of occupying the unlicensed spectrum channel is divided into two cases, one is The new listening period is enabled after the preset duration, and the other is to enable the new listening period immediately.
  • S305 Determine a second channel occupation duration and a second channel idle duration corresponding to the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period.
  • the network device determines the second channel occupation duration and the second channel idle duration in the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period.
  • the method for determining the second channel occupation duration and the second channel idle duration may be: the second channel occupation duration is equal to the first channel occupation duration, the second channel idle duration is equal to the first channel idle duration; or the second channel occupation duration
  • the duration of the idleness of the second channel is smaller than the idle time of the first channel, and the end time of the idle duration of the second channel does not exceed the start time of the listening period in the next adjacent first cycle. Since the second channel occupation duration is before the second channel idle duration, the end time of the second channel occupation duration does not exceed the start time of the listening period in the next adjacent first period.
  • the end time of the idle time of the second channel coincides with the monitoring of the next adjacent first cycle.
  • the start time of the time period is listened to, and the end time of the second channel occupation time coincides with the start time of the second channel idle time.
  • a method for adjusting a second channel occupation duration and a second channel idle duration when an unlicensed spectrum channel is in an idle state during a listening period in a second period is performed according to an embodiment of the present invention, where CCA indicates the listening period, channel occupancy time indicates the channel occupation duration, idle indicates the channel idle duration, Opt.1 indicates the detection timing diagram of the unlicensed spectrum channel of a certain cell of the first operator, and Opt.2 indicates the second carrier.
  • a timing diagram of unlicensed spectrum channel detection of a certain cell, Opt. 2other cell represents a timing diagram of unlicensed spectrum channel detection of another cell of the second operator.
  • the listening period of the first carrier and the second carrier does not coincide, and the listening time periods of the cells of the same carrier are coincident.
  • the first carrier and the second carrier are according to the first period T L .
  • the channel state of the unlicensed spectrum channel is monitored. It can be seen that the first operator monitors the unlicensed spectrum channel as idle in the first listening period, and the unlicensed spectrum channel experiences the first channel occupation duration. After the first channel is idle for a long period of time, the monitoring in the second listening period begins.
  • the first listening period When the second operator monitors the channel state of the unlicensed spectrum channel in the first listening period according to the first period, the first listening period is located in the first channel occupation time of the first operator, so the second operator monitors The unlicensed spectrum channel is in a busy state. Since the relative positions of the listening period of the first carrier and the second operator are fixed, the first operator can always compete for the unlicensed spectrum channel, and the second operator can It is always impossible to compete for unlicensed spectrum channels, making the competition unfair.
  • the N set by the second operator is 3, and when the second operator firstly listens to the unlicensed spectrum channel as the busy state according to the first period, the counter is incremented by 1, and the second operator continuously monitors the number of times the unlicensed spectrum channel is busy. When the value reaches 3, the second operator adjusts the first period T L of the listening period to the second period T S , and the second period is smaller than the first period.
  • the second operator continues to monitor the state of the unlicensed spectrum channel during the listening period according to the second period, and the second operator monitors the unlicensed spectrum channel as the busy state during the fourth listening period, at the fifth listening time.
  • the unlicensed spectrum channel is monitored as an idle state, and the second channel occupation duration and the second channel idle duration are determined in the second period, where the second channel occupation duration is equal to the first channel occupation duration, and the second channel idle duration is equal to The first channel is idle.
  • a method for adjusting a second channel occupation duration and a second channel idle duration when the unlicensed spectrum channel is idle according to the second period is monitored, and the second operator is in the fifth listening period.
  • Listening to the unlicensed spectrum channel as an idle state acquiring the listening period in the next adjacent first period, because the unlicensed spectrum channel detection of each cell is synchronous, the second operator is based on The occurrence period of the listening period in which the first period is the repetition period is determined, and the listening period in the next first period adjacent to the fifth listening period in the second period is determined, that is, in other cells.
  • the fourth listening period in the first period is the next adjacent listening period, and the ending time of the second channel idle time does not exceed the starting time of the fourth listening period in other cells, and the second channel The end time of the occupied duration does not exceed the starting time of the fourth listening period in other cells.
  • the end time of the second channel idle duration coincides with the start time of the listening period in the next adjacent first period, and the end time of the second channel occupation duration coincides with the start time of the second channel idle duration.
  • the period of the listening period of the first operator and the second operator, the duration of the listening period, the duration of the first channel, and the idle duration of the first channel may be equal or not equal, FIG. 4 and FIG.
  • the above parameter values are all equal. In actual application, different operators can set the above parameter values as needed.
  • the second period of the listening period may be adjusted to a third period with a smaller value, where the third period is The N may be equal to N in the second period in the embodiment of the present invention, the second period may be an integer multiple of the third period, or the N period and the third period in the third period may be set according to the requirements of the communication system, and the present invention is not limited. .
  • the network device adjusts the second period of the listening period. For the first period, the network device continues to monitor the channel state of the unlicensed spectrum channel during the listening period according to the first period, that is, proceeds to S301.
  • the base station the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, the second channel occupation duration, and the second The channel idle duration is notified to the terminal by using the RRC signaling, so that the terminal detects the state of the uplink channel according to the first period, the value of the N, and the second period, and according to the duration of the first channel occupation,
  • the first channel idle duration, the second channel occupation duration, and the second channel idle duration control uplink The occupied time of the channel. It is to be understood that, when the base station notifies the terminal of the above parameters, the terminal may also notify the terminal by using other signaling or messages, which is not limited by the present invention.
  • the base station is responsible for detecting the downlink channel in the cell
  • the terminal is responsible for detecting the uplink channel in the cell
  • the cell works in the unlicensed spectrum.
  • the eNB passes the RRC (Radio Resource Control, RRC for short), the first channel, the first channel occupant duration, the first channel idle duration, the N value, the second period, the second channel occupation duration, and the second channel idle duration.
  • RRC Radio Resource Control
  • the signaling is notified to the terminal, and the terminal monitors the state of the uplink channel according to the first period, the value of N, and the second period, and according to the first channel occupation time, the first channel idle duration, the second channel occupation duration, and the second channel idle.
  • the duration controls the occupation time of the upstream channel.
  • the specific process may be: the terminal monitors the channel state of the uplink channel in the listening period according to the first period, and when the uplink channel is in the idle state, the occupied time of the uplink channel is the duration occupied by the first channel, and the idle time of the uplink channel is the first.
  • the terminal adjusts the first period to the second period when the N channels are in the idle state, and the terminal monitors the channel state of the uplink channel in the listening period according to the second period.
  • the uplink channel When the uplink channel is monitored as being idle, the uplink channel is occupied, and the occupation time of the uplink channel is determined as the duration of the second channel occupation, the idle duration of the uplink channel is the idle duration of the second channel, and the duration of the second channel or the second channel is used. At the end of the idle duration, the second period is adjusted to the first period.
  • the embodiment of the present invention periodically monitors the channel state of the unlicensed spectrum channel during the listening period, and reduces the period of the listening period when the number of times the unlicensed spectrum channel is continuously monitored to reach N is continuously reduced.
  • the high frequency monitors the channel state of the unlicensed spectrum channel to improve the chance of the network device competing for the unlicensed spectrum channel, and meets the requirements for fairness when competing for unlicensed spectrum channels between different operators.
  • FIG. 6 is a schematic structural diagram of an unlicensed spectrum channel detecting apparatus according to an embodiment of the present invention.
  • the detecting apparatus includes a monitoring module 601 and an adjusting module 602.
  • the monitoring module 601 is configured to monitor a channel state of the unlicensed spectrum channel during the listening period, where the listening period is the first period.
  • the adjusting module 602 is configured to adjust the listening period to the second period when the N consecutive first periods are monitored to the unlicensed spectrum channel being in a busy state, where the first period is greater than the second period, N ⁇ 2 and is an integer.
  • the detecting device further includes:
  • a first recovery module configured to occupy the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
  • the second period is adjusted to the first period.
  • the device further includes:
  • a second recovery module configured to occupy the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
  • the second period is adjusted to the first period.
  • the first period is an integer multiple of the second period.
  • the detecting device further includes:
  • a first setting module configured to determine a value of the N according to a data volume size and/or a delay requirement of the data to be transmitted; wherein, the larger the amount of data to be transmitted and/or the higher the delay requirement, the The smaller N is.
  • the detecting device further includes:
  • a second setting module configured to configure a plurality of candidate values for the N, and select a target candidate value from the plurality of candidate values as the value of the N according to a semi-static configuration manner.
  • FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • a base station includes an unlicensed spectrum channel detecting device (hereinafter referred to as a detecting device) 7 and a notification module 705, wherein the detecting device 7
  • the first setting module 703, the second setting module 704, the listening module 701, and the adjusting module 702 are included.
  • the principle of the detecting device 7 can be referred to the description of the device item and the method item embodiment, and details are not described herein again.
  • the notification module 705 is configured to: the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, the second channel occupation duration, and The second channel idle duration is notified to the terminal through RRC signaling.
  • FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal includes an unlicensed spectrum channel detecting device (hereinafter referred to as detecting device 8) and a receiving module 805.
  • detecting device 8 an unlicensed spectrum channel detecting device
  • the working principle of the detecting device 8 can be referred to the description of the device item and the method item embodiment, and details are not described herein again.
  • a receiving module configured to receive, by the eNB, the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, and the first The two channels occupy the duration and the second channel idle time.
  • FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • a communication system includes a base station and a terminal.
  • the base station monitors the channel state of the downlink unlicensed spectrum channel during the listening period, and the monitoring period is the first period.
  • the first period is adjusted to the second period.
  • the base station acquires the first channel occupation duration and the first channel idle duration when the downlink unlicensed spectrum channel is in the idle state during the listening period according to the second period, and is determined according to the first channel occupation duration and the first channel idle duration.
  • the second channel occupation duration and the second channel idle duration are adjusted to the first period when the second channel occupation duration or the second channel idle duration ends.
  • the base station notifies the terminal of the first period, the first channel occupation duration, the first channel idle duration, the N value, the second period, the second channel occupation duration, and the second channel idle duration; the terminal is in the listening period according to the first period.
  • the channel state of the uplink unlicensed spectrum channel is monitored, and when the number of times that the uplink unlicensed spectrum channel is busy is continuously monitored, the first period is adjusted to the second period; The channel state of the uplink unlicensed spectrum channel is monitored during the listening period according to the second period.
  • the time for controlling the uplink unlicensed spectrum channel is controlled by the second channel occupation time, and the control releases the uplink non-
  • the time of the licensed spectrum channel is the idle time of the second channel, and when the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
  • the embodiment of the present invention periodically monitors the channel state of the unlicensed spectrum channel during the listening period, and reduces the period of the listening period when the number of times the unlicensed spectrum channel is continuously monitored to reach N is continuously reduced.
  • the high frequency monitors the channel state of the unlicensed spectrum channel to improve the chance of the network device competing for the unlicensed spectrum channel, and meets the requirements for fairness when competing for unlicensed spectrum channels between different operators.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

An unlicensed frequency spectrum channel detecting method is disclosed by the embodiment of the present invention, comprising that: the channel status of the unlicensed frequency spectrum channel is monitored in a monitoring time interval, and, the monitoring period is a first period; when it is monitored that the unlicensed frequency spectrum channel is in busy status for a number N of consecutive first periods, the monitoring period is transferred to a second period; the first period is longer than the second period, N≥2 and N is an integer. A detecting device, related equipment and a system are also disclosed by the embodiment of the present invention. Application of the present invention can improve equity for accessing an unlicensed frequency spectrum channel and decrease time delay of data transmission.

Description

一种非授权频谱信道检测方法和装置Unlicensed spectrum channel detecting method and device 技术领域Technical field
本发明涉及通信领域,尤其涉及一种非授权频谱信道检测方法和装置。The present invention relates to the field of communications, and in particular, to an unlicensed spectrum channel detecting method and apparatus.
背景技术Background technique
随着通信业务量的急剧增加,3GPP(3rd Generation Partnership Project,第三代合作伙伴计划,简称3GPP)授权频谱显得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,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。这些非授权频谱目前主要是WiFi(Wireless Fidelity,无线保真,简称WiFi)、蓝牙、雷达和医疗等***在使用。一般来说,为授权频段设计的接入技术,如LTE(Long Term Evolution,长期演进,简称LTE)不适合在非授权频段上使用,因为LTE接入技术对频谱效率和用户体验优化的要求非常高。然而,载波聚合功能让将LTE部署于非授权频谱变为可能。3GPP提出了LAA(LTE Assisted Access,长期演进辅助接入,简称LAA)的概念,借助LTE授权频谱的帮助来使用非授权频谱。而非授权频谱可以有两种工作方式,一种是补充下行(SDL,Supplemental Downlink),就是该频段只用在下行传输;另一种是TDD(Time Division Duplexing,时分双工,简称TDD)模式,包含上下行传输。补充下行这种情况只能是借助载波聚合技术使用。而TDD模式可以借助DC(Dual Connectivity)使用,也可以独立使用。如下图1所示。With the rapid increase in communication traffic, 3GPP (3rd Generation Partnership Project, 3GPP) authorized spectrum is becoming insufficient to provide higher network capacity. To further improve the utilization of spectrum resources, 3GPP is discussing how to use unlicensed spectrum, such as the 2.4 GHz and 5 GHz bands, with the help of licensed spectrum. These unlicensed spectrums are currently mainly used in systems such as WiFi (Wireless Fidelity), Bluetooth, radar and medical. In general, access technologies designed for licensed bands, such as LTE (Long Term Evolution, LTE for short) are not suitable for use in unlicensed bands, because LTE access technology requires very good spectrum efficiency and user experience optimization. high. However, carrier aggregation capabilities make it possible to deploy LTE to unlicensed spectrum. 3GPP proposes the concept of LAA (LTE Assisted Access, LAA for short), which uses the help of LTE licensed spectrum to use unlicensed spectrum. The non-authorized spectrum can work in two ways. One is the Supplemental Downlink (SDL), which means that the band is only used for downlink transmission; the other is TDD (Time Division Duplexing, Time Division Duplex, TDD) mode. , including uplink and downlink transmissions. This situation can only be supplemented by the carrier aggregation technology. The TDD mode can be used by DC (Dual Connectivity) or can be used independently. As shown in Figure 1 below.
相比WiFi,工作在非授权频谱的LTE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谱和非授权频谱之间无缝切换。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。Compared with WiFi, LTE operating in unlicensed spectrum has the ability to provide higher spectral efficiency and greater coverage, while seamlessly switching data traffic between licensed and unlicensed spectrum based on the same core network. For the user, this means a better broadband experience, higher speed, better stability and mobility.
现有的在非授权频谱上使用的接入技术,例如WiFi,具有较弱的抗干扰能力。为了避免干扰,WiFi***设计了很多干扰避免规则,如CSMA/CA(Carrier  Sense Multiple Access/Collision Detection,即载波监听多路访问/冲突检测方法,简称CSMA/CA)。这个方法的基本原理是WiFi的AP(Access Point,接入点,简称AP)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AP或者终端在发送/接收信令或数据,如果有,则继续监听,直到监听到没有为止。如果没有,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。Existing access technologies used on unlicensed spectrum, such as WiFi, have weaker anti-jamming capabilities. In order to avoid interference, the WiFi system has designed many interference avoidance rules, such as CSMA/CA (Carrier). Sense Multiple Access/Collision Detection, which is the carrier sense multiple access/collision detection method (CSMA/CA for short). The basic principle of this method is that an AP (Access Point, AP for short) or a terminal must monitor and detect whether there is an AP or a terminal transmitting/receiving signaling or data before sending signaling or data. Yes, continue to listen until it is not 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.
而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基站或用户在进行传输。如果LTE在非授权频谱上使用时也不考虑周围是否有别的设备在使用非授权频谱,那么将对WiFi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WiFi设备在LTE有业务传输时就没法传输,只能等到LTE业务传输完成,才能检测到信道空闲状态,才能进行传输。In the LTE network, since the interference level is ensured by the good orthogonality, the uplink and downlink transmissions between the base station and the user do not need to consider whether there is a base station or a user transmitting. If LTE is used on the unlicensed spectrum and does not consider whether other devices are using unlicensed spectrum, it will cause great interference to the WiFi device. Because LTE transmits as long as there is a service, and there is no monitoring rule, the WiFi device cannot transmit when the LTE has a service transmission, and can only transmit when the LTE service transmission is completed, and the channel idle state can be detected.
为了使LTE通信***的运营商有序的使用非授权频谱,目前提出了一种基于FBE的LBT机制,工作原理是:CCA(Clear Channel Assessment,简称CCA,信道空闲检测)时间周期性重复出现,若在CCA时间内检测到信道为空闲状态,则占用信道,在信道占用时间之后,有一个空闲时间,在空闲时间内发送点不发送信号和数据,便于其它发送点抢占信道。在空闲时间之后,又出现CCA时间,若检测到信道为忙碌状态,则不占用信道,直到下一个CCA时间出现时再次检测信道。In order to enable the operators of the LTE communication system to use the unlicensed spectrum in an orderly manner, an LBT mechanism based on the FBE is proposed. The working principle is: CCA (Clear Channel Assessment, CCA, channel idle detection) is periodically repeated. If the channel is detected to be idle during the CCA time, the channel is occupied. After the channel occupation time, there is an idle time, and the transmission point does not send signals and data during the idle time, so that other transmission points can preempt the channel. After the idle time, the CCA time occurs again. If the channel is detected to be busy, the channel is not occupied, and the channel is detected again until the next CCA time occurs.
但目前的方案存在的问题是:如果两个运营商的CCA时间错开,且周期性重复出现,则会出现一个运营商的LAA小区一直占用信道,而另一个运营商的LAA小区却始终抢占不到信道的情况,从而造成各运营商无法公平的竞争信道,数据传输时延增加。However, the problem with the current solution is that if the CCA time of the two operators is staggered and periodically repeated, there will be an operator's LAA cell always occupying the channel, while the other operator's LAA cell always preempts. In the case of the channel, the operators cannot compete for a fair channel and the data transmission delay increases.
发明内容Summary of the invention
本发明实施例所要解决的技术问题在于,提供一种非授权频谱信道检测方法和装置。可控制多个网络设备公平的竞争非授权频谱信道,减少数据传输的时延。A technical problem to be solved by embodiments of the present invention is to provide an unlicensed spectrum channel detecting method and apparatus. It can control the fair competition of unlicensed spectrum channels of multiple network devices and reduce the delay of data transmission.
为了解决上述技术问题,本发明实施例提供了一种非授权频谱信道检测方 法,包括:In order to solve the above technical problem, an embodiment of the present invention provides an unlicensed spectrum channel detecting party. Law, including:
在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期;Listening to the channel state of the unlicensed spectrum channel during the listening period, wherein the listening period is the first period;
当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。Adjusting the period of the listening period to the second period when the N consecutive first periods monitor the unlicensed spectrum channel to be in a busy state; wherein the first period is greater than the second period, N≥2 and is an integer .
相应的,本发明实施例还提供了一种非授权频谱信道检测装置,包括:Correspondingly, the embodiment of the present invention further provides an unlicensed spectrum channel detecting apparatus, including:
监听模块,用于在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期;a monitoring module, configured to monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period;
调整模块,用于当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。And an adjusting module, configured to adjust a listening period to a second period when the N consecutive first periods are monitored to be in a busy state; wherein, the first period is greater than the second period, where ≥ 2 and is an integer.
实施本发明实施例,具有如下有益效果:Embodiments of the present invention have the following beneficial effects:
在监听时间段内监听非授权频谱信道的信道状态,当连续监听到非授权频谱信道为忙碌状态的次数达到N时,减小监听时间段的周期,采用更高频率监听非授权频谱信道的信道状态,以提高网络设备竞争到非授权频谱信道的机会,满足不同运营商之间竞争非授权频谱信道时的公平性的要求。Listening to the channel state of the unlicensed spectrum channel during the listening period. When the number of times the unlicensed spectrum channel is continuously busy reaches N, the period of the listening period is reduced, and the channel of the unlicensed spectrum channel is monitored by using a higher frequency. State to improve the chances of network devices competing for unlicensed spectrum channels and meet the requirements of fairness when competing for unlicensed spectrum channels between different operators.
附图说明DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.
图1是现有的非授权频谱信道的竞争方法;1 is a conventional method for competing for unlicensed spectrum channels;
图2是本发明实施例提供的一种非授权频谱信道检测方法的流程示意图;2 is a schematic flowchart of a method for detecting an unlicensed spectrum channel according to an embodiment of the present invention;
图3时本发明实施例提供的一种非授权频谱信道检测方法的另一流程示意图;FIG. 3 is another schematic flowchart of an unlicensed spectrum channel detecting method according to an embodiment of the present invention;
图4是本发明实施例提供的第二周期下第二信道占用时长和第二信道空闲时长的调整方法的时序图;4 is a sequence diagram of a method for adjusting a second channel occupation duration and a second channel idle duration in a second period according to an embodiment of the present invention;
图5是本发明实施例提供的第二周期下第二信道占用时长和第二信道空闲时长的另一调整方法的时序图; 5 is a sequence diagram of another method for adjusting a second channel occupation duration and a second channel idle duration in a second period according to an embodiment of the present invention;
图6是本发明实施例提供的一种非授权频谱信道检测装置的结构示意图;6 is a schematic structural diagram of an unlicensed spectrum channel detecting apparatus according to an embodiment of the present invention;
图7是本发明实施例提供的一种基站的结构示意图;FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;
图8是本发明实施例提供的一种终端的结构示意图;FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;
图9是本发明实施例提供的一种通信***的结构示意图。FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
具体实施方式detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
参见图2,为本发明实施例提供的一种非授权频谱信道检测方法的流程示意图,在本发明实施例中,执行主体可以是基站或终端,以下称为网络设备,所述方法包括:FIG. 2 is a schematic flowchart of a method for detecting an unlicensed spectrum channel according to an embodiment of the present invention. In the embodiment of the present invention, an execution entity may be a base station or a terminal, which is hereinafter referred to as a network device, and the method includes:
S201、在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期。S201. Monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period.
具体的,LTE通信***可以通过载波聚合的方式,将非授权频谱分配给指定小区,小区内的基站和终端利用非授权频谱信道(上行信道或下行信道)传输数据(数据包括控制信令和数据业务)时,首先需要竞争到非授权频谱信道的使用权,然后才能利用非授权频谱信道传输数据。网络设备预先设置监听时间段,监听时间段为一定长度的时间区间,监听的周期为第一周期,即监听时间段的出现周期为第一周期,即相邻的两个监听时间段的时长为第一周期。网络设备有数据需要传输的情况下,在监听时间段到达时,监听非授权频谱信道的信道状态,信道状态分为忙碌状态和空闲状态,忙碌状态表示非授权频谱信道被其他设备占用,此时不能在非授权频谱信道上传输数据;空闲状态表示非授权频谱信道没有被其他设备占用,此时能在非授权频谱信道上传输数据。其中,网络设备在监听非授权频谱信道的过程中,非授权频谱信道的频段可以是预先指定的频段,例如根据小区的带宽指定一定范围的非授权频段作为非授权频段的工作频段。Specifically, the LTE communication system may allocate the unlicensed spectrum to the designated cell by means of carrier aggregation, and the base station and the terminal in the cell use the unlicensed spectrum channel (uplink channel or downlink channel) to transmit data (data includes control signaling and data. In the case of traffic, it is first necessary to compete for the use of the unlicensed spectrum channel before the data can be transmitted using the unlicensed spectrum channel. The network device presets the listening time period, and the listening time period is a certain time interval. The listening period is the first period, that is, the appearance period of the listening period is the first period, that is, the duration of the two adjacent listening periods is The first cycle. When the network device has data to transmit, when the listening period arrives, the channel state of the unlicensed spectrum channel is monitored, the channel state is divided into a busy state and an idle state, and the busy state indicates that the unlicensed spectrum channel is occupied by other devices. Data cannot be transmitted on an unlicensed spectrum channel; the idle state indicates that the unlicensed spectrum channel is not occupied by other devices, and data can be transmitted on the unlicensed spectrum channel at this time. In the process of monitoring the unlicensed spectrum channel, the frequency band of the unlicensed spectrum channel may be a pre-specified frequency band, for example, a certain range of unlicensed frequency bands is specified as the working frequency band of the unlicensed frequency band according to the bandwidth of the cell.
网络设备在确定非授权频谱信道为空闲状态时,占用非授权频谱信道一定时长,然后释放非授权频谱信道一定时长,网络设备在信道占用时长内传输数 据,在信道空闲时长内不传输数据。在本发明实施例中,第一周期下的信道占用时长称为第一信道占用时长,第一周期下的信道空闲时长称为第一信道空闲时长;第二周期下的信道占用时长称为第二信道占用时长,第二周期下的信道空闲时长为第二信道空闲时长。When determining that the unlicensed spectrum channel is idle, the network device occupies the unlicensed spectrum channel for a certain period of time, and then releases the unlicensed spectrum channel for a certain period of time, and the network device transmits the number of times during the channel occupation period. According to the data, no data is transmitted during the idle time of the channel. In the embodiment of the present invention, the channel occupation duration in the first period is referred to as the first channel occupation duration, the channel idle duration in the first period is referred to as the first channel idle duration; and the channel occupancy duration in the second period is referred to as the first The duration of the second channel is occupied, and the idle time of the channel in the second period is the idle time of the second channel.
S202、当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。S202, when the N consecutive first periods are monitored to be in a busy state, the period of the monitoring is adjusted to a second period, where the first period is greater than the second period, and N≥2 Is an integer.
具体的,网络设备根据第一周期在N个监听时间段内监听到非授权频谱信道为忙碌状态,且N个监听时间段为连续的监听时间段,N≥2且为整数。例如:网络设备根据第一周期在监听时间段内监听到非授权频段信道为忙碌状态时,计数器加1;网络设备根据第一周期在监听时间段内监听到非授权频谱信道为空闲状态时,计时器清零,当计数器的计数值达到N时,将第一周期调整为第二周期,即此时监听的出现周期为第二周期,即监听时间段的出现周期为第二周期,第一周期大于第二周期。Specifically, the network device monitors the unlicensed spectrum channel as a busy state in the N listening period according to the first period, and the N listening period is a continuous listening period, where N≥2 and is an integer. For example, when the network device monitors the unlicensed band channel as a busy state during the listening period according to the first period, the counter adds 1; when the network device monitors the unlicensed spectrum channel as the idle state during the listening period according to the first period, The timer is cleared. When the counter value reaches N, the first period is adjusted to the second period, that is, the occurrence period of the monitoring is the second period, that is, the appearance period of the listening period is the second period, first The period is greater than the second period.
示例性的,第一周期为4ms,第二周期为2ms,N为3,当根据第一周期连续在监听时间段内监听到非授权频谱信道为忙碌状态的次数达到3次,将监听时间段4ms的第一周期调整为2ms,连续表示多个监听时间段满足相邻的关系。通过监听时间段的出现周期的调整,网络设备采用更高的频率在监听时间段内监听非授权频谱信道的信道状态,以此提高网络设备竞争到非授权频谱信道的机会,满足不同运营商之间竞争非授权频谱信道公平性的要求。Exemplarily, the first period is 4 ms, the second period is 2 ms, and N is 3. When the number of times the unlicensed spectrum channel is monitored as busy in the listening period is continuously 3 times according to the first period, the listening period is monitored. The first period of 4ms is adjusted to 2ms, which continuously indicates that multiple listening time periods satisfy the adjacent relationship. Through the adjustment of the appearance period of the listening period, the network device monitors the channel state of the unlicensed spectrum channel in the listening period by using a higher frequency, thereby improving the chance of the network device competing for the unlicensed spectrum channel, and satisfying different operators. Requirements for competing for unlicensed spectrum channel fairness.
实施本发明的实施例,周期性在监听时间段内监听非授权频谱信道的信道状态,当连续监听到非授权频谱信道为忙碌状态的次数达到预设次数时,减小监听时间段的周期,采用更高频率监听非授权频谱信道的信道状态,以提高网络设备竞争到非授权频谱信道的机会,满足不同运营商之间竞争非授权频谱信道时的公平性的要求。The embodiment of the present invention periodically monitors the channel state of the unlicensed spectrum channel during the listening period, and reduces the period of the listening period when the number of times the unlicensed spectrum channel is continuously busy is reached a preset number of times. The channel state of the unlicensed spectrum channel is monitored by using a higher frequency to improve the chance of the network device competing for the unlicensed spectrum channel, and the fairness of competing for the unlicensed spectrum channel between different operators is met.
参见图3,为本发明实施例提供的一种非授权频谱信道检测方法的另一流程示意图,在本发明实施例中,非授权频谱信道检测方法的执行主体可以是基站,也可以是终端,以下称为网络设备,所述方法包括:FIG. 3 is a schematic flowchart of another method for detecting an unlicensed spectrum channel according to an embodiment of the present invention. In the embodiment of the present invention, an execution entity of an unlicensed spectrum channel detecting method may be a base station or a terminal. Hereinafter referred to as a network device, the method includes:
S301、根据待传输数据的数据量大小和/或时延要求确定N的值;其中,所述待传输的数据量越大和/或时延要求越高,则N越小。 S301. Determine a value of N according to a data volume size and/or a delay requirement of the data to be transmitted. The larger the amount of data to be transmitted and/or the higher the delay requirement, the smaller N is.
具体的,网络设备获取待传输数据的数据量大小和/或时延要求,根据待传输数据的数据量大小和/或时延要求确定N的值,N和待传输数据的数据量大小和/或时延要求呈负相关性,即待传输数量的数据量越大和/或时延要求越高(即时延越小),N越小,待传输数据的数据量越小和/或时延要求越低,N越大。负相关性包括等比减少关系或等差减少关系,本发明不作限制。Specifically, the network device acquires the data size and/or the delay requirement of the data to be transmitted, determines the value of N according to the data size and/or the delay requirement of the data to be transmitted, and the data size of the data to be transmitted and/or Or the delay requirement is negatively correlated, that is, the larger the amount of data to be transmitted and/or the higher the delay requirement (instant delay), the smaller the N, the smaller the amount of data to be transmitted and/or the delay requirement. The lower the N, the bigger the N. The negative correlation includes a proportional reduction relationship or an equal reduction relationship, and the present invention is not limited.
例如,待传输数据的数据量大小为2M时,设置N为5;待传输数据的数据量大小为1M时,设置N为10。For example, when the data size of the data to be transmitted is 2M, set N to 5; when the data size of the data to be transmitted is 1M, set N to 10.
又例如,待传输数据的时延要求为不大于2ms,设置N为5;待传输数据的时延要求为不大于5ms,设置N为10。For another example, the delay requirement of the data to be transmitted is not more than 2 ms, and the setting N is 5; the delay of the data to be transmitted is required to be no more than 5 ms, and the setting N is 10.
再例如,待传输数据的数据量大小为2M,时延要求为不大于2ms,设置N为5;待传输数据的数据量大小为1M,时延要求为不大于5ms,设置N为10。For example, the data size of the data to be transmitted is 2M, the delay requirement is not more than 2ms, and the setting N is 5; the data volume of the data to be transmitted is 1M, the delay requirement is not more than 5ms, and the setting N is 10.
可选的,网络设备设置N的方法还可以是:网络设备为N配置多个候选值,根据半静态方式从多个候选值中选择目标候选值作为N的值。Optionally, the method for setting the N by the network device may be: the network device configures multiple candidate values for the N, and selects the target candidate value as the value of N from the multiple candidate values according to the semi-static manner.
具体的,网络设备获取半静态方式的调度周期,根据调度周期从预设的多个候选值中选择一个作为N的目标候选值,其中,从多个候选值中选择目标候选值可以按照排列先后顺序进行选择。Specifically, the network device obtains a scheduling period of the semi-static mode, and selects one of the preset multiple candidate values as the target candidate value of the N according to the scheduling period, where the target candidate value is selected from the multiple candidate values according to the sequence. Make a selection in order.
例如,半静态调度的周期为2小时,网络设备预先为N配置多个候选值为:10、8、6、4,网络设备每隔2小时从多个候选值中选择一个候选值作为目标候选值,选择的方式可以采用按照顺序循环选择。For example, the period of the semi-persistent scheduling is 2 hours, and the network device pre-configures a plurality of candidate values for the N: 10, 8, 6, and 4. The network device selects one candidate value from the plurality of candidate values as a target candidate every 2 hours. The value, the way of selection can be cycled in order.
可选的,所述第一周期为所述第二周期的整数倍。Optionally, the first period is an integer multiple of the second period.
例如,第一周期为第二周期的2倍,第一周期为4ms,第二周期为2ms。For example, the first period is twice the second period, the first period is 4 ms, and the second period is 2 ms.
S302、在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期。S302. Monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period.
具体的,第一周期为监听时间段的出现周期,监听时间段为预设时长的时间区间,网络设备根据第一周期在监听时间段内监听非授权频谱信道的信道状态,非授权频谱信道的状态分为空闲状态和忙碌状态。网络设备识别非授权频谱信道的信道状态的方法可以是:确定当前的监听时间段的起始时刻t1和结束时刻t2,网络设备测量t1时刻至t2时刻内的接收功率,如果接收功率大于预设功率值时,确定当前的监听时间段内非授权频谱信道为忙碌状态;如果接收功率不大于预设功率值时,确定当前的监听时间段内非授权频谱信道为空闲状态。 Specifically, the first period is an appearance period of the listening period, and the listening period is a preset time period, and the network device monitors the channel state of the unlicensed spectrum channel in the listening period according to the first period, and the unlicensed spectrum channel The status is divided into an idle state and a busy state. The method for the network device to identify the channel state of the unlicensed spectrum channel may be: determining the start time t1 and the end time t2 of the current listening period, and the network device measures the received power in the time from t1 to t2, if the received power is greater than the preset When the power value is used, it is determined that the unlicensed spectrum channel is in a busy state during the current listening period; if the received power is not greater than the preset power value, it is determined that the unlicensed spectrum channel is in an idle state during the current listening period.
S303、当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。S303, when the N consecutive first periods monitor the unlicensed spectrum channel to be in a busy state, adjust the period of the monitoring to the second period, where the first period is greater than the second period, and N≥2 Is an integer.
具体的,网络设备在监听时间段内监听到非授权频谱信道为忙碌状态时,计数值加1,网络设备在监听时间段内监听到非授权频谱信道为空闲状态时,计数值清零。当连续N个第一周期监听到非授权频谱信道为忙碌状态时,网络设备将第一周期调整为第二周期,N为大于等于2的整数。Specifically, when the network device monitors that the unlicensed spectrum channel is in a busy state during the listening period, the count value is incremented by one, and when the network device detects that the unlicensed spectrum channel is in an idle state during the listening period, the count value is cleared. When the N consecutive first periods monitor the unlicensed spectrum channel to be in a busy state, the network device adjusts the first period to the second period, where N is an integer greater than or equal to 2.
示例性的,计数器的初始值为0,N=3,网络设备根据第一周期第1次监听到非授权频谱信道为忙碌状态,计数器加1得到当前的计数值为1,网络设备根据第一周期第2次监听到非授权频谱信道为空闲状态,计时器清零得到当前的计数值为0,网络设备根据第一周期在第3次至第5次连续监听到非授权频谱信道为忙碌状态,则连续监听到非授权频谱信道为忙碌状态的次数为3,达到3,网络设备将监听时间段的第一周期调整为第二周期。Exemplarily, the initial value of the counter is 0, N=3, and the network device listens to the unlicensed spectrum channel for the first time according to the first period, and the counter adds 1 to obtain the current count value of 1, and the network device according to the first The second time the period is that the unlicensed spectrum channel is idle, the timer is cleared to get the current count value of 0, and the network device continuously listens to the unlicensed spectrum channel in the third to fifth consecutive times according to the first period. Then, the number of times that the unlicensed spectrum channel is busy is continuously monitored is 3, and the network device adjusts the first period of the listening period to the second period.
S304、根据所述第二周期在监听时间段内监听到非授权频谱信道为空闲状态时,占用所述非授权频谱信道。S304. The unlicensed spectrum channel is occupied when the unlicensed spectrum channel is in an idle state during the listening period according to the second period.
具体的,网络设备根据第二周期在监听时间段内监听到非授权频谱信道为空闲状态时,占用非授权频谱信道,占用非授权频谱信道的时长结束后分为两种情况,一种为经过预设时长后再启用新的监听时间段,另一种为立即启用新的监听时间段。Specifically, the network device occupies an unlicensed spectrum channel when the unlicensed spectrum channel is idle in the listening period according to the second period, and the time of occupying the unlicensed spectrum channel is divided into two cases, one is The new listening period is enabled after the preset duration, and the other is to enable the new listening period immediately.
S305、根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长。S305. Determine a second channel occupation duration and a second channel idle duration corresponding to the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period.
具体的,网络设备根据第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期下的第二信道占用时长和第二信道空闲时长。其中,确定第二信道占用时长和第二信道空闲时长的方法可以是:第二信道占用时长等于第一信道占用时长,第二信道空闲时长等于第一信道空闲时长;或者,第二信道占用时长小于第一信道占用时长,第二信道空闲时长小于第一信道空闲时长,且第二信道空闲时长的结束时刻不超过下一相邻的第一周期下的监听时间段的起始时刻。由于第二信道占用时长位于第二信道空闲时长之前,因此第二信道占用时长的结束时刻也不超过下一相邻的第一周期下的监听时间段的起始时刻。优选的,第二信道空闲时长的结束时刻重合于下一相邻的第一周期下的监 听时间段的起始时刻,且第二信道占用时长的结束时刻重合于第二信道空闲时长的起始时刻。Specifically, the network device determines the second channel occupation duration and the second channel idle duration in the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period. The method for determining the second channel occupation duration and the second channel idle duration may be: the second channel occupation duration is equal to the first channel occupation duration, the second channel idle duration is equal to the first channel idle duration; or the second channel occupation duration The duration of the idleness of the second channel is smaller than the idle time of the first channel, and the end time of the idle duration of the second channel does not exceed the start time of the listening period in the next adjacent first cycle. Since the second channel occupation duration is before the second channel idle duration, the end time of the second channel occupation duration does not exceed the start time of the listening period in the next adjacent first period. Preferably, the end time of the idle time of the second channel coincides with the monitoring of the next adjacent first cycle. The start time of the time period is listened to, and the end time of the second channel occupation time coincides with the start time of the second channel idle time.
例如,参见图4,为本发明实施例的在第二周期下的监听时间段内监听到非授权频谱信道为空闲状态时,第二信道占用时长和第二信道空闲时长的调整方法,其中,CCA表示监听时间段,channel occupancy time表示信道占用时长,idle表示信道空闲时长,Opt.1表示第一运营商的某个小区的非授权频谱信道的检测时序图,Opt.2表示第二运营商的某个小区的非授权频谱信道检测的时序图,Opt.2other cell表示第二运营商的另一个小区的非授权频谱信道检测的时序图。图4中,第一运营商和第二运营商的监听时间段不重合,同一运营商各小区上的监听时间段是重合的,第一运营商和第二运营商根据第一周期TL在监听时间段内监听非授权频谱信道的信道状态,可以看出,第一运营商在首个监听时间段内监听到非授权频谱信道为空闲状态,非授权频谱信道在经历第一信道占用时长和第一信道空闲时长后,开始第2个监听时间段内的监听。第二运营商根据第一周期在首个监听时间段内监听非授权频谱信道的信道状态时,首个监听时间段位于第一运营商的第一信道占用时长内,因此第二运营商监听到的非授权频谱信道为忙碌状态,由于第一运营商和第二运营商的监听时间段的相对位置是固定的,因此第一运营商总是能竞争到非授权频谱信道,第二运营商却总是无法竞争到非授权频谱信道,造成二者竞争不公平。第二运营商设置的N为3,第二运营商根据第一周期首次监听到非授权频谱信道为忙碌状态时,计数器加1,第二运营商连续监听到非授权频谱信道为忙碌状态的次数达到3时,第二运营商将监听时间段的第一周期TL调整为第二周期TS,第二周期小于第一周期。For example, referring to FIG. 4, a method for adjusting a second channel occupation duration and a second channel idle duration when an unlicensed spectrum channel is in an idle state during a listening period in a second period is performed according to an embodiment of the present invention, where CCA indicates the listening period, channel occupancy time indicates the channel occupation duration, idle indicates the channel idle duration, Opt.1 indicates the detection timing diagram of the unlicensed spectrum channel of a certain cell of the first operator, and Opt.2 indicates the second carrier. A timing diagram of unlicensed spectrum channel detection of a certain cell, Opt. 2other cell represents a timing diagram of unlicensed spectrum channel detection of another cell of the second operator. In Figure 4, the listening period of the first carrier and the second carrier does not coincide, and the listening time periods of the cells of the same carrier are coincident. The first carrier and the second carrier are according to the first period T L . During the listening period, the channel state of the unlicensed spectrum channel is monitored. It can be seen that the first operator monitors the unlicensed spectrum channel as idle in the first listening period, and the unlicensed spectrum channel experiences the first channel occupation duration. After the first channel is idle for a long period of time, the monitoring in the second listening period begins. When the second operator monitors the channel state of the unlicensed spectrum channel in the first listening period according to the first period, the first listening period is located in the first channel occupation time of the first operator, so the second operator monitors The unlicensed spectrum channel is in a busy state. Since the relative positions of the listening period of the first carrier and the second operator are fixed, the first operator can always compete for the unlicensed spectrum channel, and the second operator can It is always impossible to compete for unlicensed spectrum channels, making the competition unfair. The N set by the second operator is 3, and when the second operator firstly listens to the unlicensed spectrum channel as the busy state according to the first period, the counter is incremented by 1, and the second operator continuously monitors the number of times the unlicensed spectrum channel is busy. When the value reaches 3, the second operator adjusts the first period T L of the listening period to the second period T S , and the second period is smaller than the first period.
第二运营商根据第二周期在监听时间段内继续监听非授权频谱信道的状态,第二运营商在第四个监听时间段内监听到非授权频谱信道为忙碌状态,在第五个监听时间段内监听到非授权频谱信道为空闲状态,确定第二周期下的第二信道占用时长和第二信道空闲时长,其中,第二信道占用时长等于第一信道占用时长,第二信道空闲时长等于第一信道空闲时长。The second operator continues to monitor the state of the unlicensed spectrum channel during the listening period according to the second period, and the second operator monitors the unlicensed spectrum channel as the busy state during the fourth listening period, at the fifth listening time. In the segment, the unlicensed spectrum channel is monitored as an idle state, and the second channel occupation duration and the second channel idle duration are determined in the second period, where the second channel occupation duration is equal to the first channel occupation duration, and the second channel idle duration is equal to The first channel is idle.
又例如,参见图5,为根据第二周期监听到非授权频谱信道为空闲状态时,第二信道占用时长和第二信道空闲时长的调整方法,第二运营商在第5个监听时间段内监听到非授权频谱信道为空闲状态,获取下一相邻的第一周期下的监听时间段,由于各个小区的非授权频谱信道检测同步进行,第二运营商根据自 身以第一周期为重复周期而出现的监听时间段的出现情况,确定与第二周期下的第五个监听时间段的相邻的下一个第一周期下的监听时间段,即其他小区中的第一周期下的第4个监听时间段为下一相邻的监听时间段,第二信道空闲时长的结束时刻不超过其他小区中第4个监听时间段的起始时刻,且第二信道占用时长的结束时刻也不超过其他小区中第4个监听时间段的起始时刻。优选为第二信道空闲时长的结束时刻与下一相邻的第一周期下的监听时间段的起始时刻重合,同时第二信道占用时长的结束时刻与第二信道空闲时长的起始时刻重合。For example, referring to FIG. 5, a method for adjusting a second channel occupation duration and a second channel idle duration when the unlicensed spectrum channel is idle according to the second period is monitored, and the second operator is in the fifth listening period. Listening to the unlicensed spectrum channel as an idle state, acquiring the listening period in the next adjacent first period, because the unlicensed spectrum channel detection of each cell is synchronous, the second operator is based on The occurrence period of the listening period in which the first period is the repetition period is determined, and the listening period in the next first period adjacent to the fifth listening period in the second period is determined, that is, in other cells. The fourth listening period in the first period is the next adjacent listening period, and the ending time of the second channel idle time does not exceed the starting time of the fourth listening period in other cells, and the second channel The end time of the occupied duration does not exceed the starting time of the fourth listening period in other cells. Preferably, the end time of the second channel idle duration coincides with the start time of the listening period in the next adjacent first period, and the end time of the second channel occupation duration coincides with the start time of the second channel idle duration. .
可以理解的是,第一运营商和第二运营商的监听时间段的周期,监听时间段的时长、第一信道占用时长以及第一信道空闲时长可以相等,也可以不相等,图4和图5中为了便于说明,上述参数值均取相等,实际应用时不同的运营商在设置上述参数值时,可以根据需要进行设置。It can be understood that the period of the listening period of the first operator and the second operator, the duration of the listening period, the duration of the first channel, and the idle duration of the first channel may be equal or not equal, FIG. 4 and FIG. For the convenience of description, the above parameter values are all equal. In actual application, different operators can set the above parameter values as needed.
需要说明的是,第二运营商在连续N个第二周期监听到非授权频谱信道时,可以再次将监听时间段的第二周期调整为值更小的第三周期,其中第三周期下的的N可以和本发明实施例中第二周期下的N相等,第二周期可以是第三周期的整数倍,或者根据通信***需求设置第三周期下的N和第三周期,本发明不作限制。It should be noted that, when the second operator monitors the unlicensed spectrum channel in consecutive N second periods, the second period of the listening period may be adjusted to a third period with a smaller value, where the third period is The N may be equal to N in the second period in the embodiment of the present invention, the second period may be an integer multiple of the third period, or the N period and the third period in the third period may be set according to the requirements of the communication system, and the present invention is not limited. .
S306、当所述第二信道占用时长或所述第二信道空闲时长结束时,将所述第二周期调整为所述第一周期。S306. When the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
具体的,在占用非授权频谱信道时,只配置第二信道占用时长的情况下,当第二信道占用时长结束是,将第二周期调整为第一周期;或者在占用非授权频谱信道时,配置第二信道占用时长和第二信道空闲时长的情况下,且第二信道空闲时长位于第二信道占用时长之后,当第二信道空闲时长结束时,网络设备将监听时间段的第二周期调整为第一周期,网络设备继续根据第一周期在监听时间段内监听非授权频谱信道的信道状态,即继续执行S301。Specifically, when the unoccupied unlicensed spectrum channel is occupied, only when the second channel occupation duration is configured, when the second channel occupation duration ends, the second period is adjusted to the first period; or when the unlicensed spectrum channel is occupied, When the second channel occupation duration and the second channel idle duration are configured, and the second channel idle duration is after the second channel occupation duration, when the second channel idle duration ends, the network device adjusts the second period of the listening period. For the first period, the network device continues to monitor the channel state of the unlicensed spectrum channel during the listening period according to the first period, that is, proceeds to S301.
S307、基站将所述第一周期、所述第一信道占用时长、所述第一信道空闲时长、所述N的值、所述第二周期、所述第二信道占用时长和所述第二信道空闲时长通过RRC信令通知给终端,以使所述终端根据所述第一周期、所述N的值和所述第二周期检测上行信道的状态,并根据所述第一信道占用时长、所述第一信道空闲时长、所述第二信道占用时长和所述第二信道空闲时长控制上行 信道的占用时间。可以理解的是,基站将上述参数通知终端时,也可以通过其他信令或消息通知终端,本发明不作限制。S307. The base station, the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, the second channel occupation duration, and the second The channel idle duration is notified to the terminal by using the RRC signaling, so that the terminal detects the state of the uplink channel according to the first period, the value of the N, and the second period, and according to the duration of the first channel occupation, The first channel idle duration, the second channel occupation duration, and the second channel idle duration control uplink The occupied time of the channel. It is to be understood that, when the base station notifies the terminal of the above parameters, the terminal may also notify the terminal by using other signaling or messages, which is not limited by the present invention.
具体的,在LTE通信***中,基站负责小区内下行信道的检测,终端负责小区内上行信道的检测,小区工作在非授权频谱。基站将第一周期、第一信道占用时长、第一信道空闲时长、N的值、第二周期、第二信道占用时长和第二信道空闲时长通过RRC(Radio Resource Control,无线资源控制,简称RRC)信令通知给终端,终端根据第一周期、N的值和第二周期监测上行信道的状态,并根据第一信道占用时间、第一信道空闲时长、第二信道占用时长和第二信道空闲时长控制上行信道的占用时间。Specifically, in the LTE communication system, the base station is responsible for detecting the downlink channel in the cell, and the terminal is responsible for detecting the uplink channel in the cell, and the cell works in the unlicensed spectrum. The eNB passes the RRC (Radio Resource Control, RRC for short), the first channel, the first channel occupant duration, the first channel idle duration, the N value, the second period, the second channel occupation duration, and the second channel idle duration. The signaling is notified to the terminal, and the terminal monitors the state of the uplink channel according to the first period, the value of N, and the second period, and according to the first channel occupation time, the first channel idle duration, the second channel occupation duration, and the second channel idle. The duration controls the occupation time of the upstream channel.
具体过程可以是:终端根据第一周期在监听时间段内监听上行信道的信道状态,在上行信道为空闲状态时,上行信道的占用时间为第一信道占用时长,上行信道的空闲时间为第一信道空闲时长,终端在连续N个第一周期监听到非授权频谱信道为空闲状态时,将第一周期调整为第二周期,终端根据第二周期在监听时间段内监听上行信道的信道状态,当监听到上行信道为空闲状态时,占用上行信道,以及确定上行信道的占用时间为第二信道占用时长,上行信道的空闲时长为第二信道空闲时长,在第二信道占用时长或第二信道空闲时长结束时,将第二周期调整为第一周期。The specific process may be: the terminal monitors the channel state of the uplink channel in the listening period according to the first period, and when the uplink channel is in the idle state, the occupied time of the uplink channel is the duration occupied by the first channel, and the idle time of the uplink channel is the first. When the channel is idle for a long period of time, the terminal adjusts the first period to the second period when the N channels are in the idle state, and the terminal monitors the channel state of the uplink channel in the listening period according to the second period. When the uplink channel is monitored as being idle, the uplink channel is occupied, and the occupation time of the uplink channel is determined as the duration of the second channel occupation, the idle duration of the uplink channel is the idle duration of the second channel, and the duration of the second channel or the second channel is used. At the end of the idle duration, the second period is adjusted to the first period.
实施本发明的实施例,周期性在监听时间段内监听非授权频谱信道的信道状态,当连续监听到非授权频谱信道为忙碌状态的次数达到N时,减小监听时间段的周期,采用更高频率监听非授权频谱信道的信道状态,以提高网络设备竞争到非授权频谱信道的机会,满足不同运营商之间竞争非授权频谱信道时的公平性的要求。The embodiment of the present invention periodically monitors the channel state of the unlicensed spectrum channel during the listening period, and reduces the period of the listening period when the number of times the unlicensed spectrum channel is continuously monitored to reach N is continuously reduced. The high frequency monitors the channel state of the unlicensed spectrum channel to improve the chance of the network device competing for the unlicensed spectrum channel, and meets the requirements for fairness when competing for unlicensed spectrum channels between different operators.
参见图6,为本发明实施例提供的一种非授权频谱信道检测装置的结构示意图,在本发明实施例中,以下简称检测装置,所述检测装置包括监听模块601和调整模块602。FIG. 6 is a schematic structural diagram of an unlicensed spectrum channel detecting apparatus according to an embodiment of the present invention. In the embodiment of the present invention, hereinafter referred to as a detecting apparatus, the detecting apparatus includes a monitoring module 601 and an adjusting module 602.
监听模块601,用于在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期。The monitoring module 601 is configured to monitor a channel state of the unlicensed spectrum channel during the listening period, where the listening period is the first period.
调整模块602,用于当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。 The adjusting module 602 is configured to adjust the listening period to the second period when the N consecutive first periods are monitored to the unlicensed spectrum channel being in a busy state, where the first period is greater than the second period, N ≥ 2 and is an integer.
本发明实施例和方法实施例一基于同一构思,其带来的技术效果也相同,具体过程请参照方法实施例一的描述,此处不再赘述。The embodiment of the present invention and the method embodiment 1 are based on the same concept, and the technical effects thereof are also the same. For the specific process, refer to the description of the method embodiment 1, and details are not described herein again.
可选的,所述检测装置还包括:Optionally, the detecting device further includes:
第一恢复模块,用于根据所述第二周期在监听时间段内监听到所述非授权频谱信道为空闲状态时,占用所述非授权频谱信道;a first recovery module, configured to occupy the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长;其中,所述第二信道占用时长等于所述第一信道占用时长,所述第二信道空闲时长等于所述第一信道空闲时长;Determining, according to the first channel occupation duration and the first channel idle duration, the second channel occupation duration and the second channel idle duration corresponding to the second period; wherein the second channel occupation duration is equal to the first a channel occupying duration, the second channel idle duration being equal to the first channel idle duration;
当所述第二信道占用时长或所述第二空闲时长结束时,将所述第二周期调整为所述第一周期。When the second channel occupation duration or the second idle duration ends, the second period is adjusted to the first period.
可选的,所述装置还包括:Optionally, the device further includes:
第二恢复模块,用于根据所述第二周期在监听时间段内监听到所述非授权频谱信道为空闲状态时,占用所述非授权频谱信道;a second recovery module, configured to occupy the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长;其中,所述第二信道占用时长小于所述第一信道占用时长,所述第二信道空闲时长小于第一信道空闲时长,且所述第二信道占用时长和所述第二信道空闲时长的结束时刻不超过下一相邻的所述第一周期对应的监听时间段的起始时刻;Determining a second channel occupation duration and a second channel idle duration corresponding to the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period; wherein the second channel occupation duration is less than the first a channel occupant duration, the second channel idle duration is less than the first channel idle duration, and the second channel occupation duration and the second channel idle duration end time does not exceed the next adjacent first period The starting time of the corresponding listening period;
当所述第二信道占用时长或所述第二信道空闲时长结束时,将所述第二周期调整为所述第一周期。When the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
可选的,所述第一周期为所述第二周期的整数倍。Optionally, the first period is an integer multiple of the second period.
可选的,所述检测装置还包括:Optionally, the detecting device further includes:
第一设置模块,用于根据待传输数据的数据量大小和/或时延要求确定所述N的值;其中,所述待传输的数据量越大和/或时延要求越高,则所述N越小。a first setting module, configured to determine a value of the N according to a data volume size and/or a delay requirement of the data to be transmitted; wherein, the larger the amount of data to be transmitted and/or the higher the delay requirement, the The smaller N is.
可选的,所述检测装置还包括:Optionally, the detecting device further includes:
第二设置模块,用于为所述N配置多个候选值,并根据半静态配置方式从所述多个候选值中选择目标候选值作为所述N的值。And a second setting module, configured to configure a plurality of candidate values for the N, and select a target candidate value from the plurality of candidate values as the value of the N according to a semi-static configuration manner.
本发明实施例和方法实施例二基于同一构思,其带来的技术效果也相同,具体过程请参照方法实施例二的描述,此处不再赘述。 The embodiment of the present invention and the method embodiment 2 are based on the same concept, and the technical effects thereof are also the same. For the specific process, refer to the description of the second embodiment of the method, and details are not described herein again.
参考图7,为本发明实施例提供的一种基站的结构示意图,在本发明实施例中,基站包括非授权频谱信道检测装置(以下简称检测装置)7和通知模块705,其中,检测装置7包括第一设置模块703、第二设置模块704、监听模块701和调整模块702。FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention. In an embodiment of the present invention, a base station includes an unlicensed spectrum channel detecting device (hereinafter referred to as a detecting device) 7 and a notification module 705, wherein the detecting device 7 The first setting module 703, the second setting module 704, the listening module 701, and the adjusting module 702 are included.
其中,检测装置7的原理可参照装置项和方法项实施例的描述,此处不再赘述。The principle of the detecting device 7 can be referred to the description of the device item and the method item embodiment, and details are not described herein again.
通知模块705,用于将所述第一周期、所述第一信道占用时长、所述第一信道空闲时长、所述N的值、所述第二周期、所述第二信道占用时长和所述第二信道空闲时长通过RRC信令通知给终端。The notification module 705 is configured to: the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, the second channel occupation duration, and The second channel idle duration is notified to the terminal through RRC signaling.
参见图8,为本发明实施例提供的一种终端的结构示意图,在本发明实施例中,所述终端包括非授权频谱信道检测装置(以下简称检测装置8)和接收模块805。FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present invention. In the embodiment of the present invention, the terminal includes an unlicensed spectrum channel detecting device (hereinafter referred to as detecting device 8) and a receiving module 805.
其中,检测装置8的工作原理可参照装置项和方法项实施例的描述,此处不再赘述。The working principle of the detecting device 8 can be referred to the description of the device item and the method item embodiment, and details are not described herein again.
接收模块,用于接收基站通过RRC信令发送的所述第一周期、所述第一信道占用时长、所述第一信道空闲时长、所述N的值、所述第二周期、所述第二信道占用时长和所述第二信道空闲时长。a receiving module, configured to receive, by the eNB, the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, and the first The two channels occupy the duration and the second channel idle time.
参见图9,为本发明实施例提供的一种通信***的结构示意图,在本发明实施例中,通信***包括基站和终端。FIG. 9 is a schematic structural diagram of a communication system according to an embodiment of the present invention. In the embodiment of the present invention, a communication system includes a base station and a terminal.
基站在监听时间段内监听下行非授权频谱信道的信道状态,监听的周期为第一周期,当连续监听到下行非授权频谱信道为忙碌状态的次数达到N时,将第一周期调整为第二周期;基站根据第二周期在监听时间段内监听到下行非授权频谱信道为空闲状态时,获取第一信道占用时长和第一信道空闲时长,根据第一信道占用时长和第一信道空闲时长确定第二信道占用时长和第二信道空闲时长,在第二信道占用时长或第二信道空闲时长结束时,将第二周期调整为第一周期。The base station monitors the channel state of the downlink unlicensed spectrum channel during the listening period, and the monitoring period is the first period. When the number of times that the downlink unlicensed spectrum channel is busy is continuously monitored, the first period is adjusted to the second period. The base station acquires the first channel occupation duration and the first channel idle duration when the downlink unlicensed spectrum channel is in the idle state during the listening period according to the second period, and is determined according to the first channel occupation duration and the first channel idle duration. The second channel occupation duration and the second channel idle duration are adjusted to the first period when the second channel occupation duration or the second channel idle duration ends.
基站将第一周期、第一信道占用时长、第一信道空闲时长、N的值、第二周期、第二信道占用时长和第二信道空闲时长通知给终端;终端根据第一周期在监听时间段内监听上行非授权频谱信道的信道状态,当连续监听到上行非授权频谱信道为忙碌状态的次数达到N时,将第一周期调整为第二周期;终端根 据第二周期在监听时间段内监听上行非授权频谱信道的信道状态,当上行非授权频谱信道为空闲状态时,控制占用上行非授权频谱信道的时间为第二信道占用时长,控制释放上行非授权频谱信道的时间为第二信道空闲时长,在第二信道占用时长或第二信道空闲时长结束时,将第二周期调整为第一周期。The base station notifies the terminal of the first period, the first channel occupation duration, the first channel idle duration, the N value, the second period, the second channel occupation duration, and the second channel idle duration; the terminal is in the listening period according to the first period. The channel state of the uplink unlicensed spectrum channel is monitored, and when the number of times that the uplink unlicensed spectrum channel is busy is continuously monitored, the first period is adjusted to the second period; The channel state of the uplink unlicensed spectrum channel is monitored during the listening period according to the second period. When the uplink unlicensed spectrum channel is in the idle state, the time for controlling the uplink unlicensed spectrum channel is controlled by the second channel occupation time, and the control releases the uplink non- The time of the licensed spectrum channel is the idle time of the second channel, and when the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
实施本发明的实施例,周期性在监听时间段内监听非授权频谱信道的信道状态,当连续监听到非授权频谱信道为忙碌状态的次数达到N时,减小监听时间段的周期,采用更高频率监听非授权频谱信道的信道状态,以提高网络设备竞争到非授权频谱信道的机会,满足不同运营商之间竞争非授权频谱信道时的公平性的要求。The embodiment of the present invention periodically monitors the channel state of the unlicensed spectrum channel during the listening period, and reduces the period of the listening period when the number of times the unlicensed spectrum channel is continuously monitored to reach N is continuously reduced. The high frequency monitors the channel state of the unlicensed spectrum channel to improve the chance of the network device competing for the unlicensed spectrum channel, and meets the requirements for fairness when competing for unlicensed spectrum channels between different operators.
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来指令相关的硬件来完成,所述的程序可存储于一计算机可读取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。其中,所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random Access Memory,RAM)等。One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
以上所揭露的仅为本发明一种较佳实施例而已,当然不能以此来限定本发明之权利范围,本领域普通技术人员可以理解实现上述实施例的全部或部分流程,并依本发明权利要求所作的等同变化,仍属于发明所涵盖的范围。 The above disclosure is only a preferred embodiment of the present invention, and of course, the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and according to the present invention. The equivalent changes required are still within the scope of the invention.

Claims (13)

  1. 一种非授权频谱信道检测方法,其特征在于,包括:An unlicensed spectrum channel detecting method, comprising:
    在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期;Listening to the channel state of the unlicensed spectrum channel during the listening period, wherein the listening period is the first period;
    当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。Adjusting the period of the listening period to the second period when the N consecutive first periods monitor the unlicensed spectrum channel to be in a busy state; wherein the first period is greater than the second period, N≥2 and is an integer .
  2. 根据权利要求1所述的方法,其特征在于,所述当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期之后,还包括:The method according to claim 1, wherein the adjusting the period of the monitoring to the second period after the N consecutive first periods are monitored to the unlicensed spectrum channel is as follows:
    根据所述第二周期在监听时间段内监听到所述非授权频谱信道为空闲状态时,占用所述非授权频谱信道;And occupying the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
    根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长;其中,所述第二信道占用时长等于所述第一信道占用时长,所述第二信道空闲时长等于所述第一信道空闲时长;Determining, according to the first channel occupation duration and the first channel idle duration, the second channel occupation duration and the second channel idle duration corresponding to the second period; wherein the second channel occupation duration is equal to the first a channel occupying duration, the second channel idle duration being equal to the first channel idle duration;
    当所述第二信道占用时长或所述第二信道空闲时长结束时,将所述第二周期调整为所述第一周期。When the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
  3. 根据权利要求1所述的方法,其特征在于,所述当连续N个第一周期监听到所述非授权频谱信道为忙碌状态时,将监听的周期调整为第二周期之后,还包括:The method according to claim 1, wherein the adjusting the period of the monitoring to the second period after the N consecutive first periods are monitored to the unlicensed spectrum channel is as follows:
    根据所述第二周期在监听时间段内监听到所述非授权频谱信道为空闲状态时,占用所述非授权频谱信道;And occupying the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
    根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长;其中,所述第二信道占用时长小于所述第一信道占用时长,所述第二信道空闲时长小于第一信道空闲时长,且所述第二信道占用时长和所述第二信道空闲时长的结束时刻不超过下一相邻的所述第一周期对应的监听时间段的起始时刻; Determining a second channel occupation duration and a second channel idle duration corresponding to the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period; wherein the second channel occupation duration is less than the first a channel occupant duration, the second channel idle duration is less than the first channel idle duration, and the second channel occupation duration and the second channel idle duration end time does not exceed the next adjacent first period The starting time of the corresponding listening period;
    当所述第二信道占用时长或所述第二信道空闲时长结束时,将所述第二周期调整为所述第一周期。When the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
  4. 根据权利要求1所述的方法,其特征在于,所述第一周期为所述第二周期的整数倍。The method of claim 1 wherein said first period is an integer multiple of said second period.
  5. 根据权利要求1-4任意一项所述的方法,其特征在于,所述在监听时间段内监听非授权频谱信道的信道状态之前,还包括:The method according to any one of claims 1-4, wherein before the monitoring the channel state of the unlicensed spectrum channel in the listening period, the method further comprises:
    根据待传输数据的数据量大小和/或时延要求确定所述N的值;其中,所述待传输的数据量越大和/或时延要求越高,则所述N越小。The value of the N is determined according to the data size and/or the delay requirement of the data to be transmitted; wherein the larger the amount of data to be transmitted and/or the higher the delay requirement, the smaller the N is.
  6. 根据权利要求1-4所述的方法,其特征在于,所述在监听时间段内监听非授权频谱信道的信道状态之前,还包括:The method according to any one of claims 1-4, wherein before the monitoring the channel state of the unlicensed spectrum channel in the listening period, the method further comprises:
    为所述N配置多个候选值,并根据半静态配置方式从所述多个候选值中选择目标候选值作为所述N的值。A plurality of candidate values are configured for the N, and a target candidate value is selected as the value of the N from the plurality of candidate values according to a semi-static configuration manner.
  7. 根据权利要求1-4任意一项所述的方法,其特征在于,在所述非授权频谱信道检测方法的执行主体为基站的情况下,所述非授权频谱信道检测方法还包括:The method according to any one of claims 1-4, wherein, in the case that the execution subject of the unlicensed spectrum channel detecting method is a base station, the unlicensed spectrum channel detecting method further includes:
    基站将所述第一周期、所述第一信道占用时长、所述第一信道空闲时长、所述N的值、所述第二周期、所述第二信道占用时长和所述第二信道空闲时长通过RRC信令通知给终端,以使所述终端根据所述第一周期、所述N的值和所述第二周期检测上行信道的状态,并根据所述第一信道占用时长、所述第一信道空闲时长、所述第二信道占用时长和所述第二信道空闲时长控制上行信道的占用时间。The base station, the first period, the first channel occupation duration, the first channel idle duration, the value of the N, the second period, the second channel occupation duration, and the second channel idle The duration is notified to the terminal by using the RRC signaling, so that the terminal detects the state of the uplink channel according to the first period, the value of the N, and the second period, and according to the duration of the first channel occupation, The first channel idle duration, the second channel occupancy duration, and the second channel idle duration control an uplink channel occupancy time.
  8. 一种非授权频谱信道检测装置,其特征在于,包括:An unlicensed spectrum channel detecting apparatus, comprising:
    监听模块,用于在监听时间段内监听非授权频谱信道的信道状态,其中,监听的周期为第一周期;a monitoring module, configured to monitor a channel state of an unlicensed spectrum channel during a listening period, where the listening period is a first period;
    调整模块,用于当连续N个第一周期监听到所述非授权频谱信道为忙碌状 态时,将监听的周期调整为第二周期;其中,所述第一周期大于所述第二周期,N≥2且为整数。An adjustment module, configured to monitor the unlicensed spectrum channel as busy when consecutive N first cycles In the state, the period of the monitoring is adjusted to the second period; wherein the first period is greater than the second period, N≥2 and is an integer.
  9. 根据权利要求8所述的装置,其特征在于,还包括:The device according to claim 8, further comprising:
    第一恢复模块,用于根据所述第二周期在监听时间段内监听到所述非授权频谱信道为空闲状态时,占用所述非授权频谱信道;a first recovery module, configured to occupy the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
    根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长;其中,所述第二信道占用时长等于所述第一信道占用时长,所述第二信道空闲时长等于所述第一信道空闲时长;Determining, according to the first channel occupation duration and the first channel idle duration, the second channel occupation duration and the second channel idle duration corresponding to the second period; wherein the second channel occupation duration is equal to the first a channel occupying duration, the second channel idle duration being equal to the first channel idle duration;
    当所述第二信道占用时长或所述第二空闲时长结束时,将所述第二周期调整为所述第一周期。When the second channel occupation duration or the second idle duration ends, the second period is adjusted to the first period.
  10. 根据权利要求8所述的装置,其特征在于,还包括:The device according to claim 8, further comprising:
    第二恢复模块,用于根据所述第二周期在监听时间段内监听到所述非授权频谱信道为空闲状态时,占用所述非授权频谱信道;a second recovery module, configured to occupy the unlicensed spectrum channel when the unlicensed spectrum channel is in an idle state during the listening period according to the second period;
    根据所述第一周期对应的第一信道占用时长和第一信道空闲时长确定第二周期对应的第二信道占用时长和第二信道空闲时长;其中,所述第二信道占用时长小于所述第一信道占用时长,所述第二信道空闲时长小于第一信道空闲时长,且所述第二信道占用时长和所述第二信道空闲时长的结束时刻不超过下一相邻的所述第一周期对应的监听时间段的起始时刻;Determining a second channel occupation duration and a second channel idle duration corresponding to the second period according to the first channel occupation duration and the first channel idle duration corresponding to the first period; wherein the second channel occupation duration is less than the first a channel occupant duration, the second channel idle duration is less than the first channel idle duration, and the second channel occupation duration and the second channel idle duration end time does not exceed the next adjacent first period The starting time of the corresponding listening period;
    当所述第二信道占用时长或所述第二信道空闲时长结束时,将所述第二周期调整为所述第一周期。When the second channel occupation duration or the second channel idle duration ends, the second period is adjusted to the first period.
  11. 根据权利要求8所述的装置,其特征在于,所述第一周期为所述第二周期的整数倍。The apparatus of claim 8 wherein said first period is an integer multiple of said second period.
  12. 根据权利要求8-11任意一项所述的装置,其特征在于,还包括:The device according to any one of claims 8-11, further comprising:
    第一设置模块,用于根据待传输数据的数据量大小和/或时延要求确定所述N的值;其中,所述待传输的数据量越大和/或时延要求越高,则所述N越小。 a first setting module, configured to determine a value of the N according to a data volume size and/or a delay requirement of the data to be transmitted; wherein, the larger the amount of data to be transmitted and/or the higher the delay requirement, the The smaller N is.
  13. 如权利要求8-11任意一项所述的装置,其特征在于,还包括:The device of any of claims 8-11, further comprising:
    第二设置模块,用于为所述N配置多个候选值,并根据半静态配置方式从所述多个候选值中选择目标候选值作为所述N的值。 And a second setting module, configured to configure a plurality of candidate values for the N, and select a target candidate value from the plurality of candidate values as the value of the N according to a semi-static configuration manner.
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