WO2016155134A1 - 一种未授权频段的信道检测方法及网元设备 - Google Patents

一种未授权频段的信道检测方法及网元设备 Download PDF

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Publication number
WO2016155134A1
WO2016155134A1 PCT/CN2015/082968 CN2015082968W WO2016155134A1 WO 2016155134 A1 WO2016155134 A1 WO 2016155134A1 CN 2015082968 W CN2015082968 W CN 2015082968W WO 2016155134 A1 WO2016155134 A1 WO 2016155134A1
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Prior art keywords
cca detection
channel
detection period
cca
idle
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PCT/CN2015/082968
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English (en)
French (fr)
Inventor
李明菊
朱亚军
张云飞
马莉
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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 WO2016155134A1 publication Critical patent/WO2016155134A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0808—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA
    • H04W74/0816—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using carrier sensing, e.g. as in CSMA carrier sensing with collision avoidance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a channel detection method and a network element device for an unlicensed frequency band.
  • the unlicensed frequency band has become one of the key topics of discussion in the current 3GPP, and unlicensed frequency bands such as the 2.4 GHz and 5 GHz bands.
  • unlicensed frequency bands such as the 2.4 GHz and 5 GHz bands.
  • LTE Long Term Evolution
  • CA Carrier Aggregation
  • LAA LTE Assisted Access
  • the unlicensed frequency band can have two working modes, one is Supplemental Downlink (SDL), that is, the frequency band is only used for downlink transmission, with carrier aggregation technology; the other is time division duplex (Time Division Duplex, Referred to as TDD) mode, it can be used for uplink and downlink transmission. It can be used by Dual Connectivity (DC) or it can be used independently.
  • SDL Supplemental Downlink
  • TDD Time Division Duplex
  • DC Dual Connectivity
  • WiFi WiFi access point
  • AP WiFi access point
  • AP before sending signaling or data, first monitor whether there is an AP around or the terminal is transmitting/receiving a message. Order or data, if any, continue listening until it is not listening. 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 WiFi access point
  • AP before sending signaling or data, first monitor whether there is an AP around or the terminal is transmitting/receiving a message. Order or data, if any, continue listening until it is not listening. 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.
  • Figure 1 shows that the AP or the terminal may start transmitting signaling or data after the end of the backoff time
  • the LTE network guarantees the interference level because of the good orthogonality. Therefore, the uplink and downlink transmissions of the base station and the terminal do not need to consider whether there is a base station or a terminal in the vicinity for transmission. If LTE is used on an unlicensed band, it does not consider whether other devices are using unlicensed bands, which 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.
  • LBT Listen Before Talk
  • the LBT mechanism of the Frame Based Equipment is as shown in FIG. 2, in which the Clear Channel Assessment (CCA) detection time is periodically repeated, and if the channel is idle during the CCA detection time, Then occupy the channel. After the channel occupation time, there is an idle time. At the idle time, the transmission point does not send signals and data, so that other transmission points can preempt the channel. After the idle time, the CCA detection time occurs again. If the channel is detected to be busy, the channel is not occupied, and the channel is detected again until the CCA detection time of the next period occurs.
  • CCA Clear Channel Assessment
  • Both the operator's LAA cell and the B operator's LAA cell detect that the channel is idle. Then, after the end of the LBT time, both data occur at the same time, and a collision occurs.
  • the LAA cells respectively include a base station and terminals within the coverage of the base station.
  • the CCA time of the operator is staggered and periodically repeated, it is easy for the operator's LAA cell to occupy the channel in some cases, and the B operator's LAA cell always occupies less than the channel. Deferred and unfair.
  • the cell of the operator 1 detects the channel in front, it detects that the channel is idle and occupies the channel, and the operator 2 always detects the channel later, and at this time, the channel is occupied by the operator 1, so the operation Merchant 2 has not seized the channel for a long time, causing large delays and unfairness.
  • the embodiment of the present invention provides a channel detection method for an unlicensed frequency band, which is used for reducing collision detection, realizing fair coexistence between LAA cells of different operators, reducing waiting time delay of a base station or a terminal, and improving a base station. Or the data transmission efficiency of the terminal.
  • a first aspect of the present invention provides a channel detection method for an unlicensed frequency band, which may include:
  • the network element device detects whether the channel of the unlicensed band is idle during the target channel idle evaluation CCA detection period, where the target CCA detection period is included in the CCA detection time window, and the CCA detection time window includes at least N CCA detection periods, at least two Different operators use different CCA detection periods in the above N CCA detection periods;
  • the network element device When detecting that the channel is idle, the network element device performs data transmission based on the idle channel.
  • the network element device when the network element device is a base station, before detecting, by the network element device, whether the channel of the unlicensed band is idle in the target channel idle evaluation CCA detection period, the foregoing detecting, by the base station, detecting, by the CCA, the CCA is detected.
  • the time window acquires a target CCA detection period allocated by the operator to which the base station belongs, and the operator to which the base station belongs uses different CCA detection periods in consecutive M CCA detection time windows, where the M is less than or equal to the above N.
  • the network element device when the network element device is a base station, before detecting, by the network element device, whether the channel of the unlicensed band is idle in the target channel idle evaluation CCA detection period, the foregoing detecting, by the base station, detecting, by the CCA, the CCA is detected.
  • the time window selects a target CCA detection period, and the base station selects different CCA detection periods in consecutive M consecutive CCA detection time windows, where the M is less than or equal to the above N.
  • the network element device when the network element device is a terminal, the network element device includes, after the target channel idle assessment CCA detection period, whether the channel of the unlicensed frequency band is idle, the foregoing: the terminal receiving the first channel detection configuration information sent by the base station, The first channel detection configuration information includes at least a CCA detection period, and a target CCA detection period allocated to the operator to which the terminal belongs, in the CCA detection time window; when the data is detected to be transmitted, the terminal is from the first channel Obtaining, in the detection configuration information, the target CCA detection period in the CCA detection time window allocated by the operator to which the terminal belongs, and the operator to which the terminal belongs uses different CCA detection periods in consecutive M CCA detection time windows. , the above M is less than or equal to the above N.
  • the network element device when the network element device is a terminal, the network element device includes: the terminal receiving base before detecting whether the channel of the unlicensed band is idle in the target channel idle evaluation CCA detection period.
  • the second channel detection configuration information sent by the station where the second channel detection configuration information includes at least a CCA detection period, a CCA detection time window in the CCA detection period, and a CCA detection period included in the CCA detection time window; when the data is detected;
  • the terminal selects a target CCA detection period from the CCA detection time window, and the terminal selects a different CCA detection period in the consecutive M CCA detection time windows, where the M is less than or equal to the above N.
  • a second aspect of the present invention provides a channel detection method for an unlicensed frequency band, which may include:
  • the network element device detects whether the channel of the unlicensed band is idle during the CCA detection period of the first channel idle evaluation CCA detection period;
  • the network element device determines whether the number of times the channel idle detection is not detected meets a preset threshold
  • the network element device When the number of detections meets the preset threshold, the network element device replaces the first CCA detection period with the second CCA detection period, and detects the unlicensed frequency band during the CCA detection period of the second CCA detection period. Whether the channel is idle, the second CCA detection period is less than the first CCA detection period;
  • the network element device When detecting that the channel is idle, the network element device performs data transmission based on the idle channel.
  • the network element device when the network element device is a terminal, the network element device, before detecting whether the channel of the unlicensed band is idle in the CCA detection period of the first channel idle evaluation CCA detection period, includes: the terminal receiving the third channel sent by the base station Detecting configuration information, the third channel detection configuration information includes a first CCA detection period, a number of consecutive undetected channel idle detection times and a second CCA detection period of the first CCA detection period, and the first CCA detection period is continuously undetected The number of detections to the channel idle is the above preset threshold.
  • the first CCA detection period is a multiple of the second CCA detection period, and the second CCA detection period is greater than or equal to the CCA detection period.
  • a third aspect of the present invention provides a configuration method, which may include:
  • different CCA detection periods are configured for at least two different operators.
  • configuring the different CCA detection periods for the at least two different operators includes: configuring different CCA detection periods for at least two different operators, and any one of the foregoing operators in the consecutive M CCA detection time windows
  • the configured CCA detection period is different, the above M Less than or equal to the above N.
  • a fourth aspect of the present invention provides a network element device, which may include:
  • a first detecting module configured to detect, in the target channel idle evaluation CCA detecting period, whether the channel of the unlicensed band is idle, the target CCA detecting period is included in the CCA detecting time window, and the CCA detecting time window includes at least N CCA detecting periods At least two different operators use different CCA detection periods in the above N CCA detection periods;
  • the first transmission module is configured to perform data transmission based on the idle channel when the detecting module detects that the channel is idle.
  • the network element device when the network element device is a base station, the network element device further includes: a first acquiring module, configured to acquire, when the data needs to be transmitted, the CCA detection time window from being allocated by the operator to which the base station belongs During the target CCA detection period, the operator to which the base station belongs uses different CCA detection periods in consecutive M CCA detection time windows, and the above M is less than or equal to the above N.
  • a first acquiring module configured to acquire, when the data needs to be transmitted, the CCA detection time window from being allocated by the operator to which the base station belongs During the target CCA detection period, the operator to which the base station belongs uses different CCA detection periods in consecutive M CCA detection time windows, and the above M is less than or equal to the above N.
  • the network element device when the network element device is a base station, the network element device further includes: a first selecting module, configured to select a target CCA detection period from the CCA detection time window when the data is detected to be transmitted, where the base station is continuous In the above-mentioned CCA detection time windows, different CCA detection periods are selected, and the above M is less than or equal to the above N.
  • a first selecting module configured to select a target CCA detection period from the CCA detection time window when the data is detected to be transmitted, where the base station is continuous In the above-mentioned CCA detection time windows, different CCA detection periods are selected, and the above M is less than or equal to the above N.
  • the network element device when the network element device is a terminal, the network element device further includes: a first receiving module, configured to receive first channel detection configuration information sent by the base station, where the first channel detection configuration information includes at least a CCA detection period, And a target CCA detection period that is allocated to the operator to which the terminal belongs, and the second acquisition module is configured to obtain the foregoing channel detection configuration information from the first channel detection configuration information when the data needs to be transmitted.
  • the target CCA detection period of the CCA detection time window allocated by the operator to which the terminal belongs, the operator to which the terminal belongs uses different CCA detection periods in consecutive M CCA detection time windows, and the M is less than or equal to the above N.
  • the network element device when the network element device is a terminal, the network element device further includes: a second receiving module, configured to receive second channel detection configuration information sent by the base station, where the second channel detection configuration information includes at least a CCA detection period, a CCA detection time window in the CCA detection period, a CCA detection period included in the CCA detection time window, and a third selection module, configured to select a target CCA detection period from the CCA detection time window when the data is detected to be transmitted, Above terminal Selecting different CCA detection periods in consecutive M consecutive CCA detection time windows, the above M being less than or equal to the above N.
  • a fifth aspect of the present invention provides a network element device, which may include:
  • a second detecting module configured to detect, in the CCA detection period of the first channel idle evaluation CCA detection period, whether the channel of the unlicensed band is idle;
  • a second determining module configured to determine, when no channel idle is detected, whether the number of times the channel idle detection is not detected meets a preset threshold
  • a third detecting module configured to replace the first CCA detection period with a second CCA detection period when the number of detections meets the preset threshold, and detect the foregoing in the CCA detection period of the second CCA detection period Whether the channel of the licensed frequency band is idle, and the second CCA detection period is less than the first CCA detection period;
  • a second transmission module configured to perform data transmission based on the idle channel when detecting that the channel is idle.
  • the network element device when the network element device is a terminal, the network element device further includes: a third receiving module, configured to receive third channel detection configuration information sent by the base station, where the third channel detection configuration information includes a first CCA detection period The number of detections of the channel idleness and the second CCA detection period are continuously detected in the first CCA detection period, and the number of consecutive detections of the channel idleness in the first CCA detection period is the preset threshold.
  • a third receiving module configured to receive third channel detection configuration information sent by the base station, where the third channel detection configuration information includes a first CCA detection period The number of detections of the channel idleness and the second CCA detection period are continuously detected in the first CCA detection period, and the number of consecutive detections of the channel idleness in the first CCA detection period is the preset threshold.
  • the first CCA detection period is a multiple of the second CCA detection period, and the second CCA detection period is greater than or equal to the CCA detection period.
  • the embodiment of the present invention provides a dynamic LBT mechanism for a CCA detection period, where the CCA detection time window includes N CCA detection periods, and different operators can use N CCA detection periods.
  • the different CCA detection period and then the network element device in the operator LAA cell can detect whether the channel is idle based on the target CCA detection period, and is staggered from the detection time, reducing LAA between different operators' LAA cells or operators.
  • the detection collision between the cells and the WIFI, and the target CCA detection period used by each operator in the CCA detection time window is dynamic, that is, different target CCA detection periods can be used in each CCA detection time window to ensure
  • the network element equipment working in the LAA cell of different operators has a fair channel detection probability, and achieves fair coexistence between LAA cells of different operators.
  • the embodiment of the present invention provides an LBT mechanism with a variable CCA detection period, where the network element device in the LAA cell of the operator first uses the first CCA detection period to detect whether the channel in the unlicensed frequency band is idle.
  • the network element device may replace the first CCA detection period with the second CCA detection period, and then re-detect the second CCA detection period.
  • the second CCA detection period is smaller than the first CCA detection period, that is, by shortening the channel detection period, thereby improving the number of channel detections, providing a fair detection probability for the network element device, and realizing different Fair coexistence between the LAA cells of the operator, and the network element device that does not detect the idle channel is shifted from the CCA detection time of other network element devices after the CCA detection period is replaced, and the operation is reduced.
  • the detection of WIFI between the LAA cells and the operator LAA cell collides.
  • FIG. 1 is a schematic diagram of a carrier sense multiple access/collision detection method provided by the prior art
  • FIG. 3 is a schematic diagram of a data transmission collision application scenario after LBT detection provided by the prior art
  • FIG. 4 is a schematic diagram of application of a channel detection method of an operator provided by the prior art
  • FIG. 5 is a schematic flowchart of a channel detecting method for an unlicensed frequency band according to an embodiment of the present disclosure
  • FIG. 5b is a schematic flowchart of a configuration method according to an embodiment of the present disclosure.
  • 6a is a schematic diagram of a CCA detection time window according to an embodiment of the present invention.
  • FIG. 6b is a schematic diagram of a CCA detection period allocation according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart of a channel detecting method for an unlicensed frequency band according to another embodiment of the present invention.
  • FIG. 8 is a schematic diagram of application of a channel detection method according to an embodiment of the present invention.
  • FIG. 8b is a schematic diagram of a channel detection application of an FBT-based LBT mechanism according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a network element device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a network element device according to another embodiment of the present invention.
  • the embodiment of the invention provides a channel detection method for unlicensed frequency bands, which reduces detection collisions, realizes fair coexistence between LAA cells of different operators, reduces waiting time delay of base stations or terminals, and improves data transmission efficiency of base stations or terminals.
  • the embodiment of the invention further provides a corresponding network element device.
  • the invention is used for realizing channel detection in an unlicensed frequency band, and the operator can use the unlicensed frequency band resource to achieve the purpose of network capacity shunting, but needs to comply with the regulatory requirements of the unlicensed frequency band in different regions and different frequency bands, and these regulatory requirements It is usually designed to protect public systems such as radar, as well as to ensure that multiple systems do not cause harmful effects and fair coexistence with each other, including emission power limits, out-of-band leak indicators, indoor and outdoor use restrictions, and some areas. Additional coexistence strategies, etc.
  • the coexistence specifications of 5 GHz unlicensed bands opened by governments include LBT, Transmit Power Control (TPC), Dynamic Frequency Selection (DFS), and channel occupied bandwidth.
  • the LBT is a coexistence strategy between the systems.
  • the network element device in the LAA cell of the operator needs to comply with the LBT rule when occupying the unlicensed band communication. That is, the network element device first monitors whether the channel is idle before using the channel, and if the channel is idle, The channel on the unlicensed band can be used, but the time taken to occupy the channel is limited. After the time to occupy the channel reaches the maximum limit, the channel must be released for a period of time.
  • the network element device Before the next time the channel on the unlicensed band is to be occupied, it must be monitored again whether the channel is free. According to the current ETSI EN 301 893, when the network element device is used in an unlicensed frequency band, it needs to meet the LBT mechanism requirements of the Frame Based Equipment (FBE) or the load-based equipment (Load Based Equipment, referred to as LBE) LBT mechanism requirements.
  • FBE Frame Based Equipment
  • LBE load-based equipment
  • the invention mainly introduces the channel detection of the unlicensed frequency band based on the FBT-based LBT mechanism requirement.
  • FIG. 5a is a schematic flowchart of a channel detection method for an unlicensed frequency band according to an embodiment of the present invention.
  • a channel detection method for an unlicensed frequency band may include:
  • the network element device detects, in the target channel idle evaluation CCA detection period, whether the channel of the unlicensed frequency band is idle, the target CCA detection period is included in the CCA detection time window, and the CCA detection time window includes at least N CCA detection periods, at least Two different operators use different CCA detection periods in the above N CCA detection periods;
  • the network element device works under the operator LAA cell, and may be a base station or a terminal, where the terminal is within the coverage of the base station.
  • the CCA detection time window is specifically included in the CCA detection period of the FBE frame structure, and the CCA detection period further includes a CCA detection time window, and the CCA detection time window includes N CCA detection periods in one CCA detection period.
  • one operator only uses one CCA detection period in the CCA detection time window for channel detection, and ensures that at least two different operators use different CCA detection periods in one CCA detection time window, where the above N is greater than Or a positive integer equal to 2.
  • the network element device When detecting that the channel is idle, the network element device performs data transmission based on the idle channel.
  • the above data is transmitted in a frame format, specifically including signaling or data load.
  • the embodiment of the present invention provides a dynamic LBT mechanism for detecting a time period of a CCA, wherein the CCA detection time window includes N CCA detection periods, and different operators can use different CCA detection periods in the N CCA detection periods. Then, the network element device in the LAA cell of the operator can detect whether the channel is idle based on the target CCA detection period, and is staggered from the detection time, and reduces the LAA cell between different operators or the LAA cell of the operator to the WIFI.
  • the collision is detected, and the target CCA detection period used by each operator in the CCA detection time window is dynamic, that is, different target CCA detection periods can be used in each CCA detection time window, It is ensured that the network element devices working under the LAA cell of different operators have a fair channel detection probability, and achieve fair coexistence between LAA cells of different operators.
  • the target CCA detection period used by the operator in the CCA detection time window may be pre-configured.
  • another embodiment of the present invention further provides a configuration method.
  • Can include:
  • N is a positive integer greater than or equal to 2.
  • the configuration method provided in FIG. 5b can be manually configured according to a configuration policy, where the CCA detection time window is set in the CCA detection period based on the FBE frame structure, and N CCA detections are configured in each CCA detection time window. a time period, and then configuring different CCA detection periods for different operators in the N CCA detection periods, wherein at least one CCA detection time window has different CCA detection periods of different operators, so that the operator is The detection time is staggered.
  • the CCA detection period is configured for the operator, in the foregoing N CCA detection periods, different CCA detection periods are configured for at least two different operators, and any one of the foregoing operators is in the continuous M of the foregoing CCA detection times.
  • the CCA detection period configured in the window is different.
  • the CCA detection period is configured based on the configuration policy.
  • the CCA detection period of an operator is not always in the front.
  • the channel is always idle and the channel is occupied.
  • the CCA detection period of other carriers is always after, and the detection is not detected. Until the channel is idle, the channel cannot be occupied.
  • FIG. 6a is a schematic diagram of a CCA detection time window according to an embodiment of the present invention
  • five CCA detection periods are taken as an example, respectively, A1, A2, A3, A4, and A5
  • each CCA detection period includes a CCA detection time window. Therefore, there are 5 CCA detection time windows for 5 CCA detection periods, respectively B1, B2, B3, B4, and B5, within each CCA detection time window. It includes 5 CCA detection periods, which are 1, 2, 3, 4, and 5 according to their position order.
  • the position order of window 2 and CCA detection time window 3 is 2, 3 and 1, and the positions of CCA detection time window 4, CCA detection time window 5 and CCA detection time window 6 (not shown in Fig. 6a) are recalculated sequentially. , respectively, 2, 3 and 1, and so on; the CCA detection period of the operator 3 in the CCA detection time window 1, the CCA detection time window 2 and the CCA detection time window 3 are in the order of 3, 1 and 2, in the CCA detection The positions of time window 4, CCA detection time window 5 and CCA detection time window 6 (not shown in Fig. 6a) are recalculated in order, 3, 1 and 2, respectively, and so on.
  • the CCA detection period of the deployed carrier 1, carrier 2, and carrier 3 is as shown in Figure 6b.
  • the sequence of the CCA detection period of each carrier is changing, and does not cause an operator.
  • the CCA detection period is always in the front, and the channel is always detected to be idle, and the channel can be occupied all the time.
  • the CCA detection period of other operators has been behind, and the channel is not detected to be idle, and the channel cannot be occupied.
  • the present invention may also be configured by using other configuration policies. Regardless of which configuration strategy, the technical effects of the present invention are all within the scope of protection of the present invention.
  • the above configuration policy involves related information, including a CCA detection period, a CCA detection time window in the CCA detection period, a CCA detection period included in each CCA detection time window, and allocation to an operator.
  • the target CCA detection period in the CCA detection time window may be referred to as channel detection configuration information.
  • the channel detection configuration information may be embedded in the base station chip in a configuration policy or a protocol manner. When the base station detects that the data needs to be transmitted, the base station may complete the channel detection according to the target CCA detection period configured in the configuration policy. And when the channel is idle, the data transmission is performed based on the detected channel.
  • the channel detection configuration information embedded in the base station chip in the configuration policy or the protocol manner may be rewritten. For example, when the operator needs to reconfigure the CCA detection period for the operator, the rewriting may be performed. operating.
  • the base station can send the configuration information to the terminal in the coverage area, so that the terminal uses the configured target CCA when performing data transmission.
  • the detection period performs channel detection.
  • the network element device is specifically a base station, and before the network element device detects whether the channel of the unlicensed band is idle in the target channel idle evaluation CCA detection period, also includes the steps:
  • the base station When detecting that data needs to be transmitted, the base station acquires a target CCA detection period allocated by the operator to which the base station belongs from the CCA detection time window, and the operator to which the base station belongs is used differently in consecutive M CCA detection time windows.
  • the above M is less than or equal to the above N.
  • the base station when it detects that the data needs to be transmitted, it can detect whether the channel is idle by using the target CCA detection period configured for its corresponding operator, because each operator performs CCA detection in consecutive M CCA detection time windows.
  • the time periods are different, so that the CCA detection period of a certain base station is always in the front, the channel is always idle, and the channel is always occupied, while the CCA detection period of the base station or terminal under other operators is always after, and the detection is always performed. It is not possible to occupy the channel until the channel is idle.
  • the network element device when the network element device is a base station in the foregoing embodiment, when the network element device is a terminal, in another implementable manner of the present invention, the network element device detects an unlicensed frequency band in a target channel idle evaluation CCA detection period. The steps are included before the channel is idle:
  • the terminal receives the first channel detection configuration information sent by the base station, where the first channel detection configuration information includes at least a CCA detection period, and a target CCA detection period in the CCA detection time window allocated by the operator to which the base station belongs. ;
  • the terminal When detecting that the data needs to be transmitted, the terminal acquires, from the first channel detection configuration information, the target CCA detection period in the CCA detection time window allocated by the operator to which the terminal belongs, and the operation to which the terminal belongs.
  • the quotient uses different CCA detection periods in consecutive M CCA detection time windows, and the above M is less than or equal to the above N.
  • the detection time can be staggered with the base station or the terminal under other operators, and the detection collision between the operator LAA cells and the operator LAA cell and the WIFI can be reduced.
  • the above describes the channel detection method in the unlicensed frequency band from the perspective of configuring the target CCA detection period for the operator in advance.
  • the following describes the network element device from the perspective of selecting the CCA detection period from the CCA detection time window, and further introduces the unlicensed frequency band.
  • Channel detection method
  • the CCA detection period in the channel detection configuration information, the CCA detection time window in the CCA detection period, and the CCA detection included in each CCA detection time window may be used.
  • the time period is embedded in the base station chip in a configuration policy or protocol manner, and the target CCA detection period is not configured in advance for the operator in the CCA detection time window. Therefore, when the base station needs to transmit data, it is necessary to first detect the time window from the CCA.
  • the target CCA detection period is selected, and then the channel is detected to be idle based on the target CCA detection period.
  • the base station can send the configuration information to the terminal in the coverage area, so that the terminal detects the time window from the CCA when performing data transmission.
  • the target CCA detection period is selected, and it is detected whether the channel is idle based on the target CCA detection period.
  • the CCA detection period of an operator is not always caused, and the channel is always idle, and the channel is always occupied.
  • the CCA detection period of other operators has been after, and the channel is not detected to be idle, and the channel cannot be occupied.
  • the configuration policy may be referred to (the details are not described herein again), that is, each base station or terminal selects different ones in consecutive M CCA detection time windows. CCA detection period.
  • the method further includes the following steps:
  • the base station When detecting that the data needs to be transmitted, the base station selects a target CCA detection period from the CCA detection time window, and the base station selects a different CCA detection period in the consecutive M consecutive CCA detection time windows, where the M is less than or equal to the above N.
  • the method includes:
  • the terminal receives second channel detection configuration information sent by the base station, where the second channel detection configuration information includes at least a CCA detection period, a CCA detection time window in the CCA detection period, and a CCA detection period included in the CCA detection time window. ;
  • the terminal When detecting that data needs to be transmitted, the terminal selects a target CCA detection period from the CCA detection time window, and the terminal selects different CCA detection periods in consecutive M CCA detection time windows, where the M is less than or equal to the above N .
  • the second channel detection configuration information sent by the base station is received, and the target CCA detection period is selected from the CCA detection time window according to the second channel detection configuration information.
  • another embodiment of the present invention further provides a channel detection method for an unlicensed frequency band, which may include:
  • the network element device detects, in the CCA detection period of the first channel idle assessment CCA detection period, whether the channel of the unlicensed frequency band is idle.
  • the network element device may be a base station or a terminal.
  • the network element device determines whether the number of times the channel idle detection is not detected meets a preset threshold.
  • the network element device replaces the first CCA detection period with a second CCA detection period, and detects the unauthorized in the CCA detection period of the second CCA detection period. Whether the channel of the frequency band is idle, and the second CCA detection period is less than the first CCA detection period;
  • the network element device When detecting that the channel is idle, the network element device performs data transmission based on the idle channel.
  • a LBT mechanism with a variable CCA detection period is provided.
  • the network element device in the LAA cell of the operator first uses the first CCA detection period to detect whether the channel in the unlicensed frequency band is idle.
  • the network element device may replace the first CCA detection period with the second CCA detection period, and then re-detect the unauthorized use of the second CCA detection period.
  • the channel in the frequency band is idle, because the second CCA detection period is smaller than the first CCA detection period, that is, by shortening the channel detection period, thereby improving the number of channel detection, providing a fair detection probability for the network element device, and realizing different operators.
  • the preset threshold may be a positive integer greater than or equal to 2, depending on the traffic or the sensitivity of the service to the delay, such as a large traffic or a strong service delay, the preset threshold. Smaller; otherwise, the preset threshold can be larger.
  • the preset threshold can be configured in a semi-static manner.
  • the preset threshold is 2, that is, if the idle channel is not detected by the first CCA detection period for two consecutive times, the second CCA detection period is replaced to shorten the detection period.
  • the foregoing first CCA detection period may be a multiple of the second CCA detection period, such as 2 times or more.
  • the channel detection configuration information such as the first CCA detection period, the first CCA detection period, the number of times the channel idle detection is not detected, and the second CCA detection period can be embedded in a configuration policy or protocol.
  • the number of detections that the channel is idle is not detected continuously for the first CCA detection period is the preset threshold.
  • a channel detection method for an unlicensed frequency band may include: detecting, by a base station, a channel of an unlicensed frequency band in a CCA detection period of a first channel idle evaluation CCA detection period Whether it is idle; when the channel is not detected to be idle, the base station determines whether the number of times the channel idle detection is not detected meets a preset threshold; when the number of detections meets the preset threshold, the base station detects the first CCA detection period Replacing with the second CCA detection period, and detecting whether the channel of the unlicensed band is idle during the CCA detection period of the second CCA detection period, the second CCA detection period is less than the first CCA detection period; when the channel is detected to be idle The base station performs data transmission based on the idle channel.
  • the third channel detection configuration information needs to be obtained from the base station, where the third channel detection configuration information includes the first CCA detection period, the first CCA detection period, the number of detections that the channel idle is not detected continuously, and the second CCA. Detection period. Therefore, in another implementation manner of the present invention, before the detecting, by the network element device, that the channel of the unlicensed band is idle in the CCA detection period of the first channel idle evaluation CCA detection period, the step of: receiving, by the terminal, the base station The third channel detects configuration information.
  • This CCA detection period happens to be within the idle time of the operator 1, and the channel is detected to be idle, and the data is transmitted, and the T S is replaced with T L .
  • the foregoing third channel detection configuration information may further include that the number of detections that the channel idle is not detected continuously in the second CCA detection period, and the number of times the detection of the idle channel is not detected by using the second CCA detection period satisfies the configuration information. If the second CCA detection period is not continuously detected, the second CCA detection period is changed to the first CCA detection period, or the second CCA detection period may be replaced with a smaller third. CCA detection cycle.
  • the limit of shortening the CCA detection period is that the period is equal to the CCA detection period in the CCA detection period.
  • the LBT-based LBT mechanism is as shown in Figure 8b: The LBE-based LBT mechanism is cycle-free. If there is data to be transmitted, the CCA detection is triggered. If the CCA detection is idle, the data is transmitted immediately; if the channel is detected to be busy, Then take a random number N, N ranges from 1 to q, and q ranges from 4 to 32.
  • the window competition (extended CCA) mechanism is adopted, that is, the random value N, N ranges from 1 to 16, and if the value is 8, it means that in the next consecutive CCA detection period, each The channel is detected during the CCA detection period. If the channel is detected to be idle, then N-1, if the channel is detected to be busy, N is unchanged, and when N is 0, signaling or data is sent.
  • FIG. 9 is a schematic structural diagram of a network element device according to an embodiment of the present invention. As shown in FIG. 9, the embodiment of the present invention further provides a network element device, which may include:
  • the first detecting module 910 is configured to detect, in the target channel idle evaluation CCA detection period, whether the channel of the unlicensed frequency band is idle, the target CCA detection period is included in the CCA detection time window, and the CCA detection time window includes at least N CCA detections. Time, at least two different operators Using different CCA detection periods in the above N CCA detection periods;
  • the first transmission module 920 is configured to perform data transmission based on the idle channel when the detecting module detects that the channel is idle.
  • the network element device in the embodiment of the present invention may be a base station or a terminal.
  • the first detecting module 910 detects whether the channel is idle through the target CCA detection period, when determining that the channel is idle, the first transmission module 920 transmits the data based on the detected channel, due to the CCA detection time.
  • the window includes N CCA detection periods, and different operators can use different CCA detection periods in the N CCA detection periods, and then the network element device in the operator LAA cell can detect whether the channel is idle based on the target CCA detection period.
  • the target CCA detection period used by each operator in the CCA detection time window is dynamic That is to say, different target CCA detection periods can be used in each CCA detection time window to ensure that the network element equipment working in different operators' LAA cells has a fair channel detection probability, and realizes between different operators' LAA cells. Fair coexistence.
  • the target CCA detection period used by the operator in the CCA detection time window may be pre-configured.
  • the network element device when the network element device is a base station, the network element device further includes:
  • a first acquiring module configured to acquire, from the CCA detection time window, a target CCA detection period allocated by an operator to which the base station belongs, when the detected data needs to be transmitted, where the operator to which the base station belongs is detected in consecutive M CCAs Different CCA detection periods are used in the time window, and the above M is less than or equal to the above N.
  • the network element device when the network element device is a terminal, the network element device further includes:
  • a first receiving module configured to receive first channel detection configuration information sent by the base station, where the first channel detection configuration information includes at least a CCA detection period, and a target allocated to the operator to which the base station belongs in the CCA detection time window.
  • CCA detection period ;
  • a second acquiring module configured to detect a configuration from the first channel when detecting that data needs to be transmitted Obtaining, in the information, the target CCA detection period in the CCA detection time window allocated by the operator to which the base station belongs, the operator to which the base station belongs uses different CCA detection periods in consecutive M CCA detection time windows, M is less than or equal to the above N.
  • the network element device is introduced from the perspective of configuring the target CCA detection period for the operator in advance.
  • the following describes the network element device from the perspective of selecting the CCA detection period from the CCA detection time window.
  • the network element device when the network element device is a base station, the network element device further includes:
  • a first selection module configured to select a target CCA detection period from the CCA detection time window when the data needs to be transmitted, wherein the base station selects different CCA detection periods in consecutive M CCA detection time windows, where the M is less than or Equal to the above N.
  • the network element device when the network element device is a terminal, the network element device further includes:
  • a second receiving module configured to receive second channel detection configuration information that is sent by the base station, where the second channel detection configuration information includes at least a CCA detection period, a CCA detection time window in the CCA detection period, and the CCA detection time window.
  • the second channel detection configuration information includes at least a CCA detection period, a CCA detection time window in the CCA detection period, and the CCA detection time window.
  • a third selection module configured to select a target CCA detection period from the CCA detection time window when the data needs to be transmitted, wherein the terminal selects different CCA detection periods in consecutive M CCA detection time windows, where the M is less than or Equal to the above N.
  • FIG. 10 is a schematic structural diagram of a network element device according to an embodiment of the present invention. As shown in FIG. 10, a network element device may include:
  • the second detecting module 1010 is configured to detect, in the CCA detection period of the first channel idle evaluation CCA detection period, whether the channel of the unlicensed band is idle;
  • a second determining module 1020 configured to determine, when no channel idle is detected, whether the number of times that the channel idle detection is not detected meets a preset threshold
  • the third detecting module 1030 is configured to replace the first CCA detection period with the second CCA detection period when the number of detections meets the preset threshold, and detect the foregoing in the CCA detection period of the second CCA detection period. Whether the channel of the unlicensed band is idle, and the second CCA detection period is less than the first CCA detection period;
  • the second transmission module 1040 is configured to perform, according to the idle channel, when detecting that the channel is idle data transmission.
  • the second detecting module 1010 detects the channel by using the first CCA detection period, and when the second determining module 1020 determines that the number of times the channel idle is not detected meets the preset threshold, the third The detecting module 1030 may replace the first CCA detection period with the second CCA detection period, and then re-detect whether the channel in the unlicensed frequency band is idle by using the second CCA detection period, and finally the idle channel is detected by the second transmission module 1040.
  • the data is transmitted on the network, because the second CCA detection period is smaller than the first CCA detection period, that is, the channel detection period is shortened, thereby improving the number of channel detections, providing a fair detection probability for the network element equipment, and realizing the LAA cell of different operators.
  • the fairness of the coexistence between the network elements of the LAA cell is reduced after the CCA detection period is replaced, that is, the CCA detection time of the other network element devices is shifted during the CCA detection time. Collision with WIFI detection by the operator LAA community.
  • the preset threshold may be a positive integer greater than or equal to 2, depending on the traffic or the sensitivity of the service to the delay, such as a large traffic or a strong service delay, the preset threshold. Smaller; otherwise, the preset threshold can be larger.
  • the preset threshold can be configured in a semi-static manner.
  • the preset threshold is 2, that is, if the idle channel is not detected by the first CCA detection period for two consecutive times, the second CCA detection period is replaced to shorten the detection period.
  • the foregoing first CCA detection period may be a multiple of the second CCA detection period, such as 2 times or more.
  • the channel detection configuration information such as the first CCA detection period, the first CCA detection period, the number of times the channel idle detection is not detected, and the second CCA detection period can be embedded in a configuration policy or protocol.
  • the number of detections that the channel idle is not detected continuously in the first CCA detection period herein is the preset threshold in the above embodiment.
  • the base station when the network element device is a base station, the base station specifically includes the module shown in FIG.
  • the network element device when the network element device is a terminal, the network element device further includes:
  • a third receiving module configured to receive third channel detection configuration information that is sent by the base station, where the third channel detection configuration information includes a first CCA detection period, a number of consecutive undetected channel idle detection times of the first CCA detection period, and a second In the CCA detection period, the number of times that the channel idle is not detected continuously for the first CCA detection period is the preset threshold.
  • the first CCA detection period is a multiple of the second CCA detection period, and the second CCA detection period is greater than or equal to the CCA detection period.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described above as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes.

Abstract

本发明公开了一种未授权频段的信道检测方法及网元设备，用于减少检测碰撞，实现不同运营商的LAA小区之间的公平共存。本发明实施例方法包括：网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，所述目标CCA检测时段包含于CCA检测时间窗口中，所述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商使用所述N个CCA检测时段中不同的CCA检测时段；当检测到信道空闲时，所述网元设备基于所述空闲信道进行数据传输。

Description

一种未授权频段的信道检测方法及网元设备
本申请要求于2015年3月31日提交中国专利局、申请号为201510149726.6，发明名称为“一种未授权频段的信道检测方法及网元设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，具体涉及一种未授权频段的信道检测方法及网元设备。
背景技术
随着通信业务量的急剧增加，第三代合作伙伴项目(the 3rd Generation Partnership Project，简称3GPP)授权频段显得越来越不足以提供更高的网络容量，进而，如何在授权频段的帮助下使用未授权频段，成为目前3GPP的重点讨论课题之一，未授权频段如2.4GHz和5GHz频段。目前主要是WiFi，蓝牙，雷达，医疗等系统在使用。为授权频段设计的接入技术，如长期演进(Long Term Evolution，简称LTE)对频段效率和用户体验优化的要求非常高，不适合在未授权频段上使用，而载波聚合(Carrier Aggregation，简称CA)功能使得将LTE技术部署于非授权频段变为可能。因此，3GPP提出了LTE辅助接入技术(LTE Assisted Access，简称LAA)的概念，借助LTE授权频段的帮助来使用未授权频段。其中，未授权频段可以有两种工作方式，一种是补充下行(Supplemental Downlink，简称SDL)，就是频段只用在下行传输，借助载波聚合技术；另一种是时分双工(Time Division Duplex，简称TDD)模式，可以用于上下行传输，可以借助双连通(Dual Connectivity，简称DC)使用，也可以独立使用。
现有的在非授权频段上使用的接入技术，如WiFi，具有较弱的抗干扰能力。为了避免干扰，WiFi系统设计了很多干扰避免规则，如载波侦听多路访问/冲突检测方法(Carrier Sense Multiple Access/Collision Detection,简称CSMA/CA)，其基本原理是WiFi的接入点(Access Point,简称AP)或者终端在发送信令或者数据之前，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。如图1所示。
而LTE网络由于有很好的正交性保证了干扰水平，所以基站与终端的上下行传输不用考虑周围是否有基站或终端在进行传输。如果LTE在非授权频段上使用时也不考虑周围是否有别的设备在使用非授权频段，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。
所以LTE在使用非授权频段时，最主要的关键点之一是确保LAA能够在公平友好的基础上和现有的接入技术(比如WiFi)共存，进而提出了先听后说(Listen Before Talk,简称LBT)的机制来避免碰撞。
基于帧的设备(Frame based equipment，简称FBE)的LBT机制如图2所示，其中信道空闲评估(Clear Channel Assessment，简称CCA)检测时间周期性重复出现，在CCA检测时间若检测到信道空闲，则占用信道。在信道占用时间之后，有一个闲置(idle)时间，在idle时间，发送点不发送信号和数据，便于其它发送点抢占信道。在idle时间之后，又出现CCA检测时间，若检测到信道忙，则不占用信道，直到下一周期的CCA检测时间出现时再次检测信道。
如果运营商之间基于帧结构的LBT的CCA检测时间没法错开，也就是说A和B运营商的LBT时间如果相同，如图3所示。A运营商的LAA小区和B运营商的LAA小区都检测到信道空闲，那么在LBT时间结束之后，两者同时发生数据，这样就会产生碰撞，其中，A运营商的LAA小区和B运营商的LAA小区中分别包括基站，以及在该基站覆盖范围内的终端。
但如果运营商的CCA时间错开，且周期性重复出现，则容易使得某种情况下，A运营商的LAA小区一直占用信道，而B运营商的LAA小区一直占用不到信道，从而带来时延和不公平。如图4所示，因为运营商1的小区在前面检测信道，所以检测到信道空闲则占用信道，而运营商2总是在后面检测信道，而此时信道已被运营商1占用，所以运营商2长时间抢占不到信道，带来较大时延和不公平。
发明内容
针对上述缺陷，本发明实施例提供了一种未授权频段的信道检测方法，用于减少检测碰撞，实现不同运营商的LAA小区之间的公平共存，减少基站或终端的等待时延，提高基站或终端的数据传输效率。
本发明第一方面提供了一种未授权频段的信道检测方法，可包括：
网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，上述目标CCA检测时段包含于CCA检测时间窗口中，上述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商使用上述N个CCA检测时段中不同的CCA检测时段；
当检测到信道空闲时，上述网元设备基于上述空闲信道进行数据传输。
进一步地，当上述网元设备为基站时，上述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：当检测到数据需要传输时，上述基站从上述CCA检测时间窗口获取为上述基站所属的运营商所分配的目标CCA检测时段，上述基站所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
进一步地，当上述网元设备为基站时，上述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：当检测到数据需要传输时，上述基站从上述CCA检测时间窗口选择目标CCA检测时段，上述基站在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
进一步地，当上述网元设备为终端时，上述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：上述终端接收基站发送的第一信道检测配置信息，上述第一信道检测配置信息至少包括CCA检测周期、以及为上述终端所属的运营商所分配的在上述CCA检测时间窗口的目标CCA检测时段；当检测到数据需要传输时，上述终端从上述第一信道检测配置信息中获取为上述终端所属的运营商所分配的在上述CCA检测时间窗口的上述目标CCA检测时段，上述终端所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
进一步地，当上述网元设备为终端时，上述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：上述终端接收基 站发送的第二信道检测配置信息，上述第二信道检测配置信息至少包括CCA检测周期、在上述CCA检测周期中的CCA检测时间窗口、上述CCA检测时间窗口包括的CCA检测时段；当检测到数据需要传输时，上述终端从上述CCA检测时间窗口选择目标CCA检测时段，上述终端在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
本发明第二方面提供了一种未授权频段的信道检测方法，可包括：
网元设备在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；
当未检测到信道空闲时，上述网元设备确定未检测到信道空闲的检测次数是否满足预设阀值；
当上述检测次数满足上述预设阀值时，上述网元设备将上述第一CCA检测周期更换为第二CCA检测周期，并在上述第二CCA检测周期的CCA检测时段内检测上述未授权频段的信道是否空闲，上述第二CCA检测周期小于上述第一CCA检测周期；
当检测到信道空闲时，上述网元设备基于上述空闲信道进行数据传输。
进一步地，当上述网元设备为终端时，上述网元设备在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲之前包括：上述终端接收基站发送的第三信道检测配置信息，上述第三信道检测配置信息包括第一CCA检测周期、第一CCA检测周期的连续未检测到信道空闲的检测次数和第二CCA检测周期，上述第一CCA检测周期的连续未检测到信道空闲的检测次数为上述预设阀值。
可选地，上述第一CCA检测周期为上述第二CCA检测周期的倍数，上述第二CCA检测周期大于或等于上述CCA检测时段。
本发明第三方面提供了一种配置方法，可包括：
在信道空闲评估CCA检测时间窗口中配置N个CCA检测时段；
在上述N个CCA检测时段中，为至少两个不同运营商配置不同的CCA检测时段。
进一步地，上述为至少两个不同运营商配置不同的CCA检测时段包括：为至少两个不同运营商配置不同的CCA检测时段，且任意一个上述运营商在连续M个上述CCA检测时间窗口中所配置的CCA检测时段不相同，上述M 小于或等于上述N。
本发明第四方面提供了一种网元设备，可包括：
第一检测模块，用于在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，上述目标CCA检测时段包含于CCA检测时间窗口中，上述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商使用上述N个CCA检测时段中不同的CCA检测时段；
第一传输模块，用于当上述检测模块检测到信道空闲时，基于上述空闲信道进行数据传输。
进一步地，当上述网元设备为基站时，上述网元设备还包括：第一获取模块，用于当检测到数据需要传输时，从上述CCA检测时间窗口获取为上述基站所属的运营商所分配的目标CCA检测时段，上述基站所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
进一步地，当上述网元设备为基站时，上述网元设备还包括：第一选择模块，用于当检测到数据需要传输时，从上述CCA检测时间窗口选择目标CCA检测时段，上述基站在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
进一步地，当上述网元设备为终端时，上述网元设备还包括：第一接收模块，用于接收基站发送的第一信道检测配置信息，上述第一信道检测配置信息至少包括CCA检测周期、以及为上述终端所属的运营商所分配的在上述CCA检测时间窗口的目标CCA检测时段；第二获取模块，用于当检测到数据需要传输时，从上述第一信道检测配置信息中获取为上述终端所属的运营商所分配的在上述CCA检测时间窗口的上述目标CCA检测时段，上述终端所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
进一步地，当上述网元设备为终端时，上述网元设备还包括：第二接收模块，用于接收基站发送的第二信道检测配置信息，上述第二信道检测配置信息至少包括CCA检测周期、在上述CCA检测周期中的CCA检测时间窗口、上述CCA检测时间窗口包括的CCA检测时段；第三选择模块，用于当检测到数据需要传输时，从上述CCA检测时间窗口选择目标CCA检测时段，上述终端 在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
本发明第五方面提供了一种网元设备，可包括：
第二检测模块，用于在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；
第二确定模块，用于当未检测到信道空闲时，确定未检测到信道空闲的检测次数是否满足预设阀值；
第三检测模块，用于当上述检测次数满足上述预设阀值时，将上述第一CCA检测周期更换为第二CCA检测周期，并在上述第二CCA检测周期的CCA检测时段内检测上述未授权频段的信道是否空闲，上述第二CCA检测周期小于上述第一CCA检测周期；
第二传输模块，用于当检测到信道空闲时，基于上述空闲信道进行数据传输。
进一步地，当上述网元设备为终端时，上述网元设备还包括：第三接收模块，用于接收基站发送的第三信道检测配置信息，上述第三信道检测配置信息包括第一CCA检测周期、第一CCA检测周期的连续未检测到信道空闲的检测次数和第二CCA检测周期，上述第一CCA检测周期的连续未检测到信道空闲的检测次数为上述预设阀值。
可选地，上述第一CCA检测周期为上述第二CCA检测周期的倍数，上述第二CCA检测周期大于或等于上述CCA检测时段。
可以看出，一方面本发明实施例提供了一种CCA检测时间段属于动态的LBT机制，其中，CCA检测时间窗口中包括有N个CCA检测时段，不同运营商可以使用N个CCA检测时段中的不同的CCA检测时段，进而在运营商LAA小区下的网元设备则可以基于目标CCA检测时段检测信道是否空闲，从检测时间上错开，减少不同运营商的LAA小区之间或者运营商的LAA小区对WIFI之间的检测碰撞，且在CCA检测时间窗口中每个运营商使用的目标CCA检测时段是动态的，也就是说每个CCA检测时间窗口中可以使用不同的目标CCA检测时段，确保工作在不同运营商的LAA小区下的网元设备具有公平的信道检测概率，实现不同运营商的LAA小区之间的公平共存。
另一方面本发明实施例提供了一种CCA检测周期可变的LBT机制，其中，运营商LAA小区下的网元设备先采用第一CCA检测周期来检测未授权频段下的信道是否空闲，当某一网元设备未检测到信道空闲的检测次数满足了预设阀值时，该网元设备可以将第一CCA检测周期换成第二CCA检测周期，然后再采用第二CCA检测周期重新检测未授权频段下的信道是否空闲，由于第二CCA检测周期小于第一CCA检测周期，也就是通过缩短信道检测的周期，从而提高信道检测的次数，为网元设备提供公平的检测概率，实现不同运营商的LAA小区之间的公平共存，而且检测不到空闲信道的网元设备在将CCA检测周期更换后，也就是会在CCA检测时间上与其它网元设备的CCA检测时间错开，减少运营商LAA小区之间和运营商LAA小区对WIFI的检测碰撞。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例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。
图1为现有技术提供的载波监听多路访问/冲突检测方法的示意图；
图2为现有技术提供的FBE帧结构；
图3为现有技术提供的LBT检测后的数据传输碰撞应用场景示意图；
图4为现有技术提供的运营商的信道检测方法的应用示意图；
图5a为本发明实施例提供的未授权频段的信道检测方法的流程示意图；
图5b为本发明实施例提供的配置方法的流程示意图；
图6a为本发明实施例提供的CCA检测时间窗口示意图；
图6b为本发明实施例提供的CCA检测时段分配示意图；
图7为本发明另一实施例提供的未授权频段的信道检测方法的流程示意图；
图8a为本发明实施例提供的信道检测方法的应用示意图；
图8b为本发明实施例提供的基于FBE的LBT机制的信道检测应用示意图；
图9为本发明实施例提供的网元设备的结构示意图；
图10为本发明另一实施例提供的网元设备的结构示意图。
具体实施方式
本发明实施例提供了一种未授权频段的信道检测方法，减少检测碰撞，实现不同运营商的LAA小区之间的公平共存，减少基站或终端的等待时延，提高基站或终端的数据传输效率。本发明实施例还提供了相应的网元设备。
下面将结合本发明实施例的附图，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。
本发明用于实现在未授权频段上的信道检测，运营商利用未授权频段资源可以达到网络容量分流的目的，但是需要遵从不同的地域和不同的频段对未授权频段的法规要求，这些法规要求通常是为保护雷达等公共系统，以及保证多系统尽可能互相之间不造成有害影响、公平共存而制定的，包括发射功率限制、带外泄露指标、室内外使用限制，以及一些地域还有一些附加的共存策略等。
例如，各国政府开放的5GHz的未授权频段，其共存规范包括LBT、发射功率控制(Transmit Power Control，简称TPC)，动态频率选择(Dynamic Frequency Selection，简称DFS)和信道占用带宽等。其中，LBT是系统间的共存策略，运营商LAA小区下的网元设备在占用未授权频段通信时需遵从LBT规则，即网元设备在使用信道之前，首先监听信道是否空闲，如果信道空闲则可以使用该未授权频段上的信道，但占用该信道的时间是受限制的。在占用该信道的时间达到最大限制后，必须释放该信道一段时间。在下一次要占用未授权频段上的信道之前，必须再次监听信道是否空闲。按照ETSI EN 301 893目前的规定，网元设备在未授权频段上使用时，需要满足基于帧的设备(Frame Based Equipment，简称FBE)的LBT机制要求，或者基于负载的设备(Load Based Equipment，简称LBE)的LBT机制要求。
本发明主要介绍基于FBE的LBT机制要求基础上，实现未授权频段的信道检测。
基于上述介绍，本发明实施例提供了一种未授权频段的信道检测方法。请参阅图5a，图5a为本发明实施例提供的未授权频段的信道检测方法的流程示意图；如图5a所示，一种未授权频段的信道检测方法，可包括：
501、网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，上述目标CCA检测时段包含于CCA检测时间窗口中，上述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商使用上述N个CCA检测时段中不同的CCA检测时段；
上述网元设备工作于运营商LAA小区下，可以是基站或终端，其中，终端在基站覆盖范围内。
其中，CCA检测时间窗口具体包括于FBE的帧结构的CCA检测周期中，而CCA检测周期进一步包含有CCA检测时间窗口，在CCA检测时间窗口中包括有N个CCA检测时段，在一个CCA检测周期中，一个运营商只使用CCA检测时间窗口中的一个CCA检测时段进行信道检测，且确保在一个CCA检测时间窗口中至少两个不同的运营商使用不同的CCA检测时段，其中，上述N为大于或等于2的正整数。
可以理解的是，在一个CCA检测周期中，包括CCA检测窗口、以及信道占用时间和空闲(idle)时间。因此，在CCA检测窗口后面还有信道占用时间和空闲(idle)时间。
需要注意的是，如果运营商使用的是第二个CCA检测时段，那么如果检测到信道空闲，从第三个CCA检测时段即可开始传输数据，开始占用信道。
502、当检测到信道空闲时，上述网元设备基于上述空闲信道进行数据传输。
上述数据以帧格式进行传输，具体包括信令或者数据负载。
本发明实施例通过提供一种CCA检测时间段属于动态的LBT机制，其中，CCA检测时间窗口中包括有N个CCA检测时段，不同运营商可以使用N个CCA检测时段中的不同的CCA检测时段，进而在运营商LAA小区下的网元设备则可以基于目标CCA检测时段检测信道是否空闲，从检测时间上错开，减少不同运营商的LAA小区之间或者运营商的LAA小区对WIFI之间的检测碰撞，且在CCA检测时间窗口中每个运营商使用的目标CCA检测时段是动态的，也就是说每个CCA检测时间窗口中可以使用不同的目标CCA检测时段， 确保工作在不同运营商的LAA小区下的网元设备具有公平的信道检测概率，实现不同运营商的LAA小区之间的公平共存。
可以理解的是，在上述实施例中，运营商在CCA检测时间窗口中使用的目标CCA检测时段可以预先配置，进而，如图5b所示，本发明另一实施例还提供了一种配置方法，可包括：
511、在信道空闲评估CCA检测时间窗口中配置N个CCA检测时段；
其中，上述N为大于或等于2的正整数。
512、在上述N个CCA检测时段中，为至少两个不同运营商配置不同的CCA检测时段。
图5b所提供的配置方法可以人为根据配置策略进行配置，该配置策略具体是在基于FBE帧结构的CCA检测周期中设置CCA检测时间窗口，并在每个CCA检测时间窗口中配置N个CCA检测时段，然后在该N个CCA检测时段中为不同运营商配置不同的CCA检测时段，其中，至少在一个CCA检测时间窗口中有两个不同的运营商的CCA检测时段不同，从而使得运营商在检测时间上错开。
进一步地，在给运营商配置CCA检测时段时，在上述N个CCA检测时段中，为至少两个不同运营商配置不同的CCA检测时段，且任意一个上述运营商在连续M个上述CCA检测时间窗口中所配置的CCA检测时段不相同。基于该配置策略配置CCA检测时段，不会造成某个运营商的CCA检测时段一直在前，一直检测到信道空闲，一直占用信道，而别的运营商的CCA检测时段一直在后，一直检测不到信道空闲，一直不能占用信道。
举例来说，如图6a所示，图6a为本发明实施例提供的CCA检测时间窗口的示意图；在图6a中，以5个CCA检测周期为例，分别为A1、A2、A3、A4和A5，每个CCA检测周期中包括一个CCA检测时间窗口，因此，5个CCA检测周期一共有5个CCA检测时间窗口，分别为B1、B2、B3、B4和B5，每个CCA检测时间窗口内包括5个CCA检测时段，按照其位置顺序分别为1、2、3、4和5。现在需要为运营商1、运营商2和运营商3在连续3个CCA检测时间窗口中分配目标CCA检测时段，其中，运营商1的CCA检测时段在CCA检测时间窗口1、CCA检测时间窗口2和CCA检测时间窗口3的位置顺序为1，2和3，在CCA检测时间窗口4、CCA检测时间窗口5和 CCA检测时间窗口6(在图6a中未标出)的位置顺序重新计算，分别为1，2和3，依次类推；同样，运营商2的CCA检测时段在CCA检测时间窗口1、CCA检测时间窗口2和CCA检测时间窗口3的位置顺序为2，3和1，在CCA检测时间窗口4、CCA检测时间窗口5和CCA检测时间窗口6(在图6a中未标出)的位置顺序重新计算，分别为2，3和1，依次类推；运营商3的CCA检测时段在CCA检测时间窗口1、CCA检测时间窗口2和CCA检测时间窗口3的位置顺序为3，1和2，在CCA检测时间窗口4、CCA检测时间窗口5和CCA检测时间窗口6(在图6a中未标出)的位置顺序重新计算，分别为3，1和2，依次类推。
其中，配置后的运营商1、运营商2和运营商3的CCA检测时段如图6b所示，其中，每个运营商的CCA检测时段的先后顺序都在变化，不会造成某个运营商的CCA检测时段一直在前，而一直检测到信道空闲，能一直占用信道，而别的运营商的CCA检测时段一直靠后，一直检测不到信道空闲，一直不能占用信道的情况发生。
需要说明的是，除却上述配置策略，本发明还可以采用其它配置策略进行配置，不管哪种配置策略，只要实现本发明的技术效果，都属于本发明的保护范围。
还需要说明的是，在上述配置策略涉及到相关信息，包括CCA检测周期、在该CCA检测周期中的CCA检测时间窗口、每个CCA检测时间窗口中包括的CCA检测时段、以及为运营商分配的在CCA检测时间窗口中的目标CCA检测时段，这些信息可以称之为信道检测配置信息。其中，可以将信道检测配置信息以一种配置策略或者协议方式内嵌在基站芯片中，进而基站在检测到数据需要传输时，则可以根据上述配置策略中配置的目标CCA检测时段来完成信道检测，并在监测到信道空闲时，基于检测到的信道进行数据传输。
当然，还可以对以配置策略或者协议方式内嵌在基站芯片中的信道检测配置信息进行改写操作，例如，随着运营商的增加，需要重新为运营商配置CCA检测时段时，则可以进行改写操作。
由于上述将信道检测配置信息以配置策略或者协议方式内嵌在基站芯片中，因此，基站可以将配置信息发送给其覆盖范围内的终端，以便终端在进行数据传输时，采用配置好的目标CCA检测时段进行信道检测。
因此，在上述配置方法基础上，在本发明一个可实施的方式中，上述网元设备具体为基站，则在网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前，还包括步骤：
当检测到数据需要传输时，上述基站从上述CCA检测时间窗口获取为上述基站所属的运营商所分配的目标CCA检测时段，上述基站所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
可以看出，在基站检测到数据需要传输时，可以采用为其对应的运营商所配置的目标CCA检测时段检测信道是否空闲，由于每个运营商在连续M个CCA检测时间窗口中的CCA检测时段都不相同，从而不会造成某个基站的CCA检测时段一直在前，一直检测到信道空闲，一直占用信道，而别的运营商下的基站或终端的CCA检测时段一直在后，一直检测不到信道空闲，一直不能占用信道。
对应上述实施例中网元设备是基站的情况，当网元设备是终端时，在本发明另一个可实施的方式中，上述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括步骤：
S1、上述终端接收基站发送的第一信道检测配置信息，上述第一信道检测配置信息至少包括CCA检测周期、以及为上述基站所属的运营商所分配的在上述CCA检测时间窗口的目标CCA检测时段；
S2、当检测到数据需要传输时，上述终端从上述第一信道检测配置信息中获取为上述终端所属的运营商所分配的在上述CCA检测时间窗口的上述目标CCA检测时段，上述终端所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
可以理解的是，对于终端而言，接收基站发送的第一信道检测配置信息，从第一信道检测配置信息中获取目标CCA检测时段，在检测到数据需要传输时，利用该目标CCA检测时段检测信道是否空闲。从而可以与其它运营商下的基站或终端错开检测时间，减少运营商LAA小区之间和运营商LAA小区和WIFI之间的检测碰撞。
上述从预先为运营商配置目标CCA检测时段的角度介绍了在未授权频段中的信道检测方法，下面将网元设备从CCA检测时间窗口选择CCA检测时段的角度出发，进一步介绍在未授权频段中的信道检测方法。
可以理解，为了给用户提供更好的用户体验，可以将上述信道检测配置信息中的CCA检测周期、在该CCA检测周期中的CCA检测时间窗口、以及每个CCA检测时间窗口中包括的CCA检测时段，以一种配置策略或者协议方式内嵌在基站芯片中，没有提前为运营商在CCA检测时间窗口配置目标CCA检测时段，因此，在基站需要传输数据时，需要先从CCA检测时间窗口中选择目标CCA检测时段，再基于目标CCA检测时段检测信道是否空闲。
由于上述将信道检测配置信息以配置策略或者协议方式内嵌在基站芯片中，因此，基站可以将配置信息发送给其覆盖范围内的终端，以便终端在进行数据传输时，从CCA检测时间窗口中选择出目标CCA检测时段，基于目标CCA检测时段检测信道是否空闲。
当然，为了实现每个运营商在连续M个CCA检测时间窗口中的CCA检测时段都不相同，从而不会造成某个运营商的CCA检测时段一直在前，一直检测到信道空闲，一直占用信道，而别的运营商的CCA检测时段一直在后，一直检测不到信道空闲，一直不能占用信道。基站或终端在从CCA检测时间窗口中自由选择目标CCA检测时段时，可以参照上述配置策略(在此不再赘述)，即每个基站或终端在连续M个CCA检测时间窗口中分别选择不同的CCA检测时段。
因此，在本发明另一个可实施的方式中，若上述网元设备具体为基站，则在网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前，还包括步骤：
当检测到数据需要传输时，上述基站从上述CCA检测时间窗口选择目标CCA检测时段，上述基站在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
相应地，在上述网元设备为终端时，在本发明另一些可实施的方式中，在上述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括步骤：
S3、上述终端接收基站发送的第二信道检测配置信息，上述第二信道检测配置信息至少包括CCA检测周期、在上述CCA检测周期中的CCA检测时间窗口、上述CCA检测时间窗口包括的CCA检测时段；
S4、当检测到数据需要传输时，上述终端从上述CCA检测时间窗口选择目标CCA检测时段，上述终端在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
可以理解的是，对于终端而言，接收基站发送的第二信道检测配置信息，根据第二信道检测配置信息，从CCA检测时间窗口中选择目标CCA检测时段。
请参阅图7，本发明另一实施例还提供了一种未授权频段的信道检测方法，可包括：
701、网元设备在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；
其中，上述网元设备可以是基站或终端，
702、当未检测到信道空闲时，上述网元设备确定未检测到信道空闲的检测次数是否满足预设阀值；
703、当上述检测次数满足上述预设阀值时，上述网元设备将上述第一CCA检测周期更换为第二CCA检测周期，并在上述第二CCA检测周期的CCA检测时段内检测上述未授权频段的信道是否空闲，上述第二CCA检测周期小于上述第一CCA检测周期；
704、当检测到信道空闲时，上述网元设备基于上述空闲信道进行数据传输。
本发明实施例中提供了一种CCA检测周期可变的LBT机制，其中，运营商LAA小区下的网元设备先采用第一CCA检测周期来检测未授权频段下的信道是否空闲，当某一网元设备未检测到信道空闲的检测次数满足了预设阀值时，该网元设备可以将第一CCA检测周期换成第二CCA检测周期，然后再采用第二CCA检测周期重新检测未授权频段下的信道是否空闲，由于第二CCA检测周期小于第一CCA检测周期，也就是通过缩短信道检测的周期，从而提高信道检测的次数，为网元设备提供公平的检测概率，实现不同运营商的LAA小区之间的公平共存，而且检测不到空闲信道的网元设备在将CCA检测周期 更换后，也就是会在CCA检测时间上与其它网元设备的CCA检测时间错开，减少运营商LAA小区之间和运营商LAA小区对WIFI的检测碰撞。
可选地，上述预设阀值可以为大于或等于2的正整数，具体取决于业务量或业务对时延的敏感度，比如业务量大或者业务对时延敏感强，则预设阀值较小；反之，预设阀值可以较大。预设阀值可以采用半静态方式配置。
若预设阀值为2，也就是说连续2次利用第一CCA检测周期检测不到空闲信道时，就更换成第二CCA检测周期，以缩短检测周期。
可选地，上述第一CCA检测周期可以是第二CCA检测周期的倍数，比如2倍或者2倍以上。
可以理解的是，同样可以将第一CCA检测周期、第一CCA检测周期连续未检测到信道空闲的检测次数和第二CCA检测周期等信道检测配置信息以一种配置策略或者协议方式内嵌在基站芯片中。其中，第一CCA检测周期的连续未检测到信道空闲的检测次数为上述预设阀值。
因此，对应于基站侧，在本发明一些可实施的方式中，一种未授权频段的信道检测方法可包括：基站在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；当未检测到信道空闲时，上述基站确定未检测到信道空闲的检测次数是否满足预设阀值；当上述检测次数满足上述预设阀值时，上述基站将上述第一CCA检测周期更换为第二CCA检测周期，并在上述第二CCA检测周期的CCA检测时段内检测上述未授权频段的信道是否空闲，上述第二CCA检测周期小于上述第一CCA检测周期；当检测到信道空闲时，上述基站基于上述空闲信道进行数据传输。
对于终端侧而言，需要从基站获取第三信道检测配置信息，该第三信道检测配置信息包括上述第一CCA检测周期、第一CCA检测周期连续未检测到信道空闲的检测次数和第二CCA检测周期。因此，在本发明另一些可实施的方式中，在上述网元设备在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲之前包括步骤：上述终端接收基站发送的第三信道检测配置信息。
举例来说，如图8a所示，运营商1采用CCA检测周期TL(TL＝10ms)的CCA检测时段检测信道是否空闲，连续4次检测到信道空闲，并发送数据。运营商2在连续N＝3个TL中检测出信道忙，接下来从第4个检测周期开始将 TL更换成TS(TS＝2ms)，在接下来的第5个TS中，这个CCA检测时段恰好在运营商1的空闲(idle)时间内，则检测出信道空闲，并发送数据，且将TS更换成TL。
可以理解的是，上述第三信道检测配置信息还可以包括第二CCA检测周期连续未检测到信道空闲的检测次数，当采用第二CCA检测周期未检测到空闲信道的检测次数满足了配置信息中给出的第二CCA检测周期连续未检测到信道空闲的检测次数，则将第二CCA检测周期变换成第一CCA检测周期，或者，还可以将第二CCA检测周期更换成更小的第三CCA检测周期。
需要说明的是，CCA检测周期变短的极限就是周期等于CCA检测周期中的CCA检测时段。
当CCA检测周期等于CCA检测时段时，实际上就是变成了现有的基于LBE的LBT机制，即当检测到信道忙时，选择随机数N＝1，一直继续检测，只要检测到一次信道空闲，则占用信道。
其中，基于LBE的LBT机制如下图8b所示：基于LBE的LBT机制是无周期的，只要有数据需要传输，则触发CCA检测，如果CCA检测空闲，则马上传输数据；若检测到信道忙，则取一个随机数N，N的取值范围为1到q，q的取值范围是4到32。图9显示的是q＝16的情况，这时，当检测到信道空闲时，信道最大占用时间为(13/32)*q＝6.5ms。则在6.5ms之后，采取窗口竞争(extended CCA)机制，即也是随机取值N，N的范围为1到16，若取值为8，则表示在接下来的连续的CCA检测时段中，每个CCA检测时段都要检测信道，若检测到信道空闲，则N-1，若检测到信道忙，则N不变，当N为0时，发送信令或数据。
因此，CCA检测周期变短的极限为等于CCA检测时段，实际上就变成了随机数N＝1的基于LBE的LBT机制。也就是说在接下来的CCA检测时段中，只要有一次CCA检测到空闲，则马上传输数据。
请参阅图9，图9为本发明实施例提供的一种网元设备的结构示意图；如图9所示，本发明实施例还提供了一种网元设备，可包括：
第一检测模块910，用于在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，上述目标CCA检测时段包含于CCA检测时间窗口中，上述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商 使用上述N个CCA检测时段中不同的CCA检测时段；
第一传输模块920，用于当上述检测模块检测到信道空闲时，基于上述空闲信道进行数据传输。
其中，上述N为大于或等于2的正整数。在本发明实施例中的网元设备可以是基站或终端。
可以看出，在本发明实施例中，由于第一检测模块910通过目标CCA检测时段检测信道是否空闲，当确定信道空闲时，第一传输模块920基于检测到的信道传输数据，由于CCA检测时间窗口中包括有N个CCA检测时段，不同运营商可以使用N个CCA检测时段中的不同的CCA检测时段，进而在运营商LAA小区下的网元设备则可以基于目标CCA检测时段检测信道是否空闲，从检测时间上错开，减少不同运营商的LAA小区之间或者运营商的LAA小区对WIFI之间的检测碰撞，且在CCA检测时间窗口中每个运营商使用的目标CCA检测时段是动态的，也就是说每个CCA检测时间窗口中可以使用不同的目标CCA检测时段，确保工作在不同运营商的LAA小区下的网元设备具有公平的信道检测概率，实现不同运营商的LAA小区之间的公平共存。
可以理解的是，在上述实施例中，运营商在CCA检测时间窗口中使用的目标CCA检测时段可以预先配置，具体可以参照附图5b所示的配置方法以及上述方法实施例中的介绍，在此不再赘述。
因此，在本发明一些可实施的方式中，当上述网元设备为基站时，上述网元设备还包括：
第一获取模块，用于当检测到数据需要传输时，从上述CCA检测时间窗口获取为上述基站所属的运营商所分配的目标CCA检测时段，上述基站所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
在本发明另一些可实施的方式中，当上述网元设备为终端时，上述网元设备还包括：
第一接收模块，用于接收基站发送的第一信道检测配置信息，上述第一信道检测配置信息至少包括CCA检测周期、以及为上述基站所属的运营商所分配的在上述CCA检测时间窗口的目标CCA检测时段；
第二获取模块，用于当检测到数据需要传输时，从上述第一信道检测配置 信息中获取为上述基站所属的运营商所分配的在上述CCA检测时间窗口的上述目标CCA检测时段，上述基站所属的运营商在连续M个上述CCA检测时间窗口中使用不同的CCA检测时段，上述M小于或等于上述N。
上述从预先为运营商配置目标CCA检测时段的角度介绍了网元设备，，下面将网元设备从CCA检测时间窗口选择CCA检测时段的角度出发，进一步介绍该网元设备。
因此，在本发明另一些可实施的方式中，当上述网元设备为基站时，上述网元设备还包括：
第一选择模块，用于当检测到数据需要传输时，从上述CCA检测时间窗口选择目标CCA检测时段，上述基站在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
在本发明另一些可实施的方式中，当上述网元设备为终端时，上述网元设备还包括：
第二接收模块，用于接收基站发送的第二信道检测配置信息，上述第二信道检测配置信息至少包括CCA检测周期、在上述CCA检测周期中的CCA检测时间窗口、上述CCA检测时间窗口包括的CCA检测时段；
第三选择模块，用于当检测到数据需要传输时，从上述CCA检测时间窗口选择目标CCA检测时段，上述终端在连续M个上述CCA检测时间窗口中选择不同的CCA检测时段，上述M小于或等于上述N。
请参阅图10，图10为本发明实施例提供的一种网元设备的结构示意图；如图10所示，一种网元设备可以包括：
第二检测模块1010，用于在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；
第二确定模块1020，用于当未检测到信道空闲时，确定未检测到信道空闲的检测次数是否满足预设阀值；
第三检测模块1030，用于当上述检测次数满足上述预设阀值时，将上述第一CCA检测周期更换为第二CCA检测周期，并在上述第二CCA检测周期的CCA检测时段内检测上述未授权频段的信道是否空闲，上述第二CCA检测周期小于上述第一CCA检测周期；
第二传输模块1040，用于当检测到信道空闲时，基于上述空闲信道进行 数据传输。
可以看出，在本发明实施例中，第二检测模块1010采用第一CCA检测周期来检测信道，当第二确定模块1020确定检测不到信道空闲的次数满足了预设阀值时，第三检测模块1030可以将第一CCA检测周期换成第二CCA检测周期，然后再采用第二CCA检测周期重新检测未授权频段下的信道是否空闲，最后由第二传输模块1040在检测到空闲的信道上传输数据，由于第二CCA检测周期小于第一CCA检测周期，也就是通过缩短信道检测的周期，从而提高信道检测的次数，为网元设备提供公平的检测概率，实现不同运营商的LAA小区之间的公平共存，而且检测不到空闲信道的网元设备在将CCA检测周期更换后，也就是会在CCA检测时间上与其它网元设备的CCA检测时间错开，减少运营商LAA小区之间和运营商LAA小区对WIFI的检测碰撞。
可选地，上述预设阀值可以为大于或等于2的正整数，具体取决于业务量或业务对时延的敏感度，比如业务量大或者业务对时延敏感强，则预设阀值较小；反之，预设阀值可以较大。预设阀值可以采用半静态方式配置。
若预设阀值为2，也就是说连续2次利用第一CCA检测周期检测不到空闲信道时，就更换成第二CCA检测周期，以缩短检测周期。
可选地，上述第一CCA检测周期可以是第二CCA检测周期的倍数，比如2倍或者2倍以上。
可以理解的是，同样可以将第一CCA检测周期、第一CCA检测周期连续未检测到信道空闲的检测次数和第二CCA检测周期等信道检测配置信息以一种配置策略或者协议方式内嵌在基站芯片中，其中，这里的第一CCA检测周期连续未检测到信道空闲的检测次数为上述实施例中的预设阀值。
因此，在本发明的一些可实施的方式中，当上述网元设备为基站时，该基站具体包括了附图10所示的模块。
在本发明的一些可实施的方式中，当上述网元设备为终端时，上述网元设备还包括：
第三接收模块，用于接收基站发送的第三信道检测配置信息，上述第三信道检测配置信息包括第一CCA检测周期、第一CCA检测周期的连续未检测到信道空闲的检测次数和第二CCA检测周期，上述第一CCA检测周期的连续未检测到信道空闲的检测次数为上述预设阀值。
其中，上述第一CCA检测周期为上述第二CCA检测周期的倍数，上述第二CCA检测周期大于或等于上述CCA检测时段。
网元设备实施例中的具体内容可参阅上述方法实施例中的详细介绍，在此不再赘述。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述 的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上对本发明所提供的一种未授权频段的信道检测方法及网元设备进行了详细介绍，对于本领域的一般技术人员，依据本发明实施例的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (18)

  1. 一种未授权频段的信道检测方法，其特征在于，包括：
    网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，所述目标CCA检测时段包含于CCA检测时间窗口中，所述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商使用所述N个CCA检测时段中不同的CCA检测时段；
    当检测到信道空闲时，所述网元设备基于所述空闲信道进行数据传输。
  2. 根据权利要求1所述的方法，其特征在于，
    当所述网元设备为基站时，所述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：
    当检测到数据需要传输时，所述基站从所述CCA检测时间窗口获取为所述基站所属的运营商所分配的目标CCA检测时段，所述基站所属的运营商在连续M个所述CCA检测时间窗口中使用不同的CCA检测时段，所述M小于或等于所述N。
  3. 根据权利要求1所述的方法，其特征在于，
    当所述网元设备为基站时，所述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：
    当检测到数据需要传输时，所述基站从所述CCA检测时间窗口选择目标CCA检测时段，所述基站在连续M个所述CCA检测时间窗口中选择不同的CCA检测时段，所述M小于或等于所述N。
  4. 根据权利要求1或2所述的方法，其特征在于，
    当所述网元设备为终端时，所述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：
    所述终端接收基站发送的第一信道检测配置信息，所述第一信道检测配置信息至少包括CCA检测周期、以及为所述终端所属的运营商所分配的在所述CCA检测时间窗口的目标CCA检测时段；
    当检测到数据需要传输时，所述终端从所述第一信道检测配置信息中获取为所述终端所属的运营商所分配的在所述CCA检测时间窗口的所述目标CCA 检测时段，所述终端所属的运营商在连续M个所述CCA检测时间窗口中使用不同的CCA检测时段，所述M小于或等于所述N。
  5. 根据权利要求1或3所述的方法，其特征在于，
    当所述网元设备为终端时，所述网元设备在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲之前包括：
    所述终端接收基站发送的第二信道检测配置信息，所述第二信道检测配置信息至少包括CCA检测周期、在所述CCA检测周期中的CCA检测时间窗口、所述CCA检测时间窗口包括的CCA检测时段；
    当检测到数据需要传输时，所述终端从所述CCA检测时间窗口选择目标CCA检测时段，所述终端在连续M个所述CCA检测时间窗口中选择不同的CCA检测时段，所述M小于或等于所述N。
  6. 一种未授权频段的信道检测方法，其特征在于，包括：
    网元设备在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；
    当未检测到信道空闲时，所述网元设备确定未检测到信道空闲的检测次数是否满足预设阀值；
    当所述检测次数满足所述预设阀值时，所述网元设备将所述第一CCA检测周期更换为第二CCA检测周期，并在所述第二CCA检测周期的CCA检测时段内检测所述未授权频段的信道是否空闲，所述第二CCA检测周期小于所述第一CCA检测周期；
    当检测到信道空闲时，所述网元设备基于所述空闲信道进行数据传输。
  7. 根据权利要求6所述的方法，其特征在于，
    当所述网元设备为终端时，所述网元设备在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲之前包括：
    所述终端接收基站发送的第三信道检测配置信息，所述第三信道检测配置信息包括第一CCA检测周期、第一CCA检测周期连续未检测到信道空闲的检测次数和第二CCA检测周期，所述第一CCA检测周期连续未检测到信道空闲的检测次数为所述预设阀值。
  8. 根据权利要求6或7所述的方法，其特征在于，
    所述第一CCA检测周期为所述第二CCA检测周期的倍数，所述第二CCA 检测周期大于或等于所述CCA检测时段。
  9. 一种配置方法，其特征在于，包括：
    在信道空闲评估CCA检测时间窗口中配置N个CCA检测时段；
    在所述N个CCA检测时段中，为至少两个不同运营商配置不同的CCA检测时段。
  10. 根据权利要求9所述的方法，其特征在于，
    所述为至少两个不同运营商配置不同的CCA检测时段包括：
    为至少两个不同运营商配置不同的CCA检测时段，且任意一个所述运营商在连续M个所述CCA检测时间窗口中所配置的CCA检测时段不相同，所述M小于或等于所述N。
  11. 一种网元设备，其特征在于，包括：
    第一检测模块，用于在目标信道空闲评估CCA检测时段内检测未授权频段的信道是否空闲，所述目标CCA检测时段包含于CCA检测时间窗口中，所述CCA检测时间窗口至少包括N个CCA检测时段，至少两个不同运营商使用所述N个CCA检测时段中不同的CCA检测时段；
    第一传输模块，用于当所述检测模块检测到信道空闲时，基于所述空闲信道进行数据传输。
  12. 根据权利要求11所述的网元设备，其特征在于，
    当所述网元设备为基站时，所述网元设备还包括：
    第一获取模块，用于当检测到数据需要传输时，从所述CCA检测时间窗口获取为所述基站所属的运营商所分配的目标CCA检测时段，所述基站所属的运营商在连续M个所述CCA检测时间窗口中使用不同的CCA检测时段，所述M小于或等于所述N。
  13. 根据权利提要求11所述的网元设备，其特征在于，
    当所述网元设备为基站时，所述网元设备还包括：
    第一选择模块，用于当检测到数据需要传输时，从所述CCA检测时间窗口选择目标CCA检测时段，所述基站在连续M个所述CCA检测时间窗口中选择不同的CCA检测时段，所述M小于或等于所述N。
  14. 根据权利要求11或12所述的网元设备，其特征在于，
    当所述网元设备为终端时，所述网元设备还包括：
    第一接收模块，用于接收基站发送的第一信道检测配置信息，所述第一信道检测配置信息至少包括CCA检测周期、以及为所述终端所属的运营商所分配的在所述CCA检测时间窗口的目标CCA检测时段；
    第二获取模块，用于当检测到数据需要传输时，从所述第一信道检测配置信息中获取为所述终端所属的运营商所分配的在所述CCA检测时间窗口的所述目标CCA检测时段，所述终端所属的运营商在连续M个所述CCA检测时间窗口中使用不同的CCA检测时段，所述M小于或等于所述N。
  15. 根据权利要求12或13所述的网元设备，其特征在于，
    当所述网元设备为终端时，所述网元设备还包括：
    第二接收模块，用于接收基站发送的第二信道检测配置信息，所述第二信道检测配置信息至少包括CCA检测周期、在所述CCA检测周期中的CCA检测时间窗口、所述CCA检测时间窗口包括的CCA检测时段；
    第三选择模块，用于当检测到数据需要传输时，从所述CCA检测时间窗口选择目标CCA检测时段，所述终端在连续M个所述CCA检测时间窗口中选择不同的CCA检测时段，所述M小于或等于所述N。
  16. 一种网元设备，其特征在于，包括：
    第二检测模块，用于在第一信道空闲评估CCA检测周期的CCA检测时段内检测未授权频段的信道是否空闲；
    第二确定模块，用于当未检测到信道空闲时，确定未检测到信道空闲的检测次数是否满足预设阀值；
    第三检测模块，用于当所述检测次数满足所述预设阀值时，将所述第一CCA检测周期更换为第二CCA检测周期，并在所述第二CCA检测周期的CCA检测时段内检测所述未授权频段的信道是否空闲，所述第二CCA检测周期小于所述第一CCA检测周期；
    第二传输模块，用于当检测到信道空闲时，基于所述空闲信道进行数据传输。
  17. 根据权利要求16所述的网元设备，其特征在于，包括：
    当所述网元设备为终端时，所述网元设备还包括：
    第三接收模块，用于接收基站发送的第三信道检测配置信息，所述第三信道检测配置信息包括第一CCA检测周期、第一CCA检测周期的连续未检测到 信道空闲的检测次数和第二CCA检测周期，所述第一CCA检测周期的连续未检测到信道空闲的检测次数为所述预设阀值。
  18. 根据权利要求16或17所述的网元设备，其特征在于，
    所述第一CCA检测周期为所述第二CCA检测周期的倍数，所述第二CCA检测周期大于或等于所述CCA检测时段。
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Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104717686B (zh) * 2015-03-31 2018-11-30 深圳酷派技术有限公司 一种未授权频段的信道检测方法及网元设备
CN106162925A (zh) * 2015-04-21 2016-11-23 电信科学技术研究院 一种信道接入方法和装置
CN104955018B (zh) * 2015-06-19 2019-08-02 宇龙计算机通信科技(深圳)有限公司 在非授权频段上识别运营商标识的方法、装置和终端
US10425942B2 (en) * 2015-06-21 2019-09-24 Lg Electronics Inc. Method and device for transmitting uplink in unlicensed band
CN106301733B (zh) * 2015-06-26 2020-11-20 中兴通讯股份有限公司 数据的传输方法及装置
CN106301734A (zh) * 2015-06-29 2017-01-04 中兴通讯股份有限公司 一种非授权载波占用时长的管理方法和装置
CN105611552A (zh) * 2015-06-30 2016-05-25 宇龙计算机通信科技(深圳)有限公司 业务检测方法及业务检测系统、终端和基站
CN105101446B (zh) * 2015-06-30 2017-12-15 宇龙计算机通信科技(深圳)有限公司 一种用于非授权频段的冲突避免方法及装置
CN105634859B (zh) * 2015-07-31 2019-08-02 宇龙计算机通信科技(深圳)有限公司 基于负载的lbt信道检测方法及系统、基站和终端
US11792654B2 (en) 2015-07-31 2023-10-17 Nec Corporation Method and apparatus for performing transmission
CN106454881B (zh) * 2015-08-06 2021-05-11 中兴通讯股份有限公司 数据发送、接收方法及装置
CN106452701B (zh) * 2015-08-07 2020-06-09 中兴通讯股份有限公司 一种非授权多载波先听后说lbt执行方法和装置
CN106454854A (zh) * 2015-08-07 2017-02-22 中兴通讯股份有限公司 一种非授权频谱的频谱共享方法和装置
CN106455109A (zh) * 2015-08-07 2017-02-22 中兴通讯股份有限公司 多信道时频资源的竞争方法及装置
CN105049136A (zh) * 2015-08-07 2015-11-11 宇龙计算机通信科技(深圳)有限公司 一种非授权频谱信道检测方法和装置
CN106455029A (zh) * 2015-08-13 2017-02-22 华为技术有限公司 功率控制的方法、装置和系统
WO2017026981A1 (en) 2015-08-13 2017-02-16 Intel IP Corporation Energy detection threshold adaptation for licensed assisted access of lte in unlicensed band
CN107113636B (zh) * 2015-08-14 2020-12-15 华为技术有限公司 一种确定信道质量的方法及装置
CN106470425A (zh) * 2015-08-14 2017-03-01 中兴通讯股份有限公司 基于非授权载波的数据传输方法及装置、资源抢占方法及装置
CN106257959B (zh) * 2015-08-19 2020-04-14 北京智谷技术服务有限公司 确定信道占用的方法和装置
WO2017032218A1 (zh) * 2015-08-21 2017-03-02 中兴通讯股份有限公司 数据传输方法及装置、资源抢占方法及装置
CN106559882B (zh) * 2015-09-25 2021-12-10 中兴通讯股份有限公司 一种授权协助接入设备竞争接入参数配置的方法及装置
CN106559908B (zh) * 2015-09-25 2021-11-09 中兴通讯股份有限公司 一种实现先听后说的方法和装置
CN105307179B (zh) * 2015-09-25 2018-12-25 宇龙计算机通信科技(深圳)有限公司 信道检测方法和信道检测装置
WO2017059583A1 (en) * 2015-10-09 2017-04-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for data transmission
CN106656430B (zh) * 2015-10-28 2020-08-25 中兴通讯股份有限公司 先听后说参数处理方法、竞争窗调整方法和装置
WO2017075774A1 (zh) * 2015-11-04 2017-05-11 华为技术有限公司 一种空闲信道评估方法及网络节点
CN106686726B (zh) * 2015-11-05 2021-10-01 索尼公司 无线通信设备和无线通信方法
CN105451251B (zh) * 2015-11-06 2019-01-11 东莞酷派软件技术有限公司 一种非授权频谱的drs配置方法、测量方法和相关设备
CN105611537B (zh) * 2015-12-18 2019-03-15 北京邮电大学 一种未授权频段的信道复用方法及装置
CN105611641B (zh) * 2015-12-29 2019-04-23 北京邮电大学 一种基于非授权频谱的多用户上行调度方法
CN105682239B (zh) 2015-12-31 2019-04-12 宇龙计算机通信科技(深圳)有限公司 非授权频谱上先听后说机制的信道检测配置方法及装置
US10542566B2 (en) * 2016-01-29 2020-01-21 Telefonaktiebolaget Lm Ericsson (Publ) Clear channel assessment technique
US10687288B2 (en) 2016-02-02 2020-06-16 Qualcomm Incorporated Synchronization across transmitting nodes using shared radio frequency spectrum
CN108605357A (zh) * 2016-02-04 2018-09-28 华为技术有限公司 一种上行信号的传输方法、ue及基站
CN107171700B (zh) 2016-03-08 2021-09-07 索尼公司 用于具有多个天线的通信装置的电子设备和通信方法
CN107294579A (zh) 2016-03-30 2017-10-24 索尼公司 无线通信系统中的装置和方法以及无线通信系统
CN107295672B (zh) * 2016-03-30 2023-04-07 中兴通讯股份有限公司 上行cca检测方法及装置、终端
CN108702780A (zh) * 2016-03-31 2018-10-23 华为技术有限公司 侦听数据确定方法、设备以及系统
CN107306401B (zh) * 2016-04-18 2019-09-17 普天信息技术有限公司 一种基于频谱共享的冲突解决方法及感知系统
EP3189648B1 (en) * 2016-04-21 2019-09-25 Telefonaktiebolaget LM Ericsson (publ) Methods used in terminal devices and network devices, and associated devices
CN105979546A (zh) * 2016-04-28 2016-09-28 东莞市华睿电子科技有限公司 一种信道检测方法
CN106788927B (zh) * 2016-05-13 2019-09-17 北京展讯高科通信技术有限公司 Srs的发送方法及装置
CN105933910B (zh) * 2016-06-21 2019-11-15 厦门大学 一种资源分配方法及基站
CN107770879B (zh) * 2016-08-23 2020-06-16 华为技术有限公司 数据传输方法、装置及系统
CN106358315A (zh) * 2016-09-23 2017-01-25 中国科学院上海微系统与信息技术研究所 适用于非授权频段的增强型fbe帧结构及信道接入方法
CN109983826B (zh) * 2016-09-29 2022-08-23 瑞典爱立信有限公司 调度的和基于竞争的上行链路传送的协调
CN109906590B (zh) 2016-10-29 2021-02-23 华为技术有限公司 用于由传输点接入未许可频谱的方法和系统
CN108696874B (zh) * 2017-03-01 2021-10-22 惠州Tcl移动通信有限公司 Lte-u与wifi5g信道的自干扰解决方法及系统
US11736979B2 (en) 2017-11-30 2023-08-22 Huawei Technologies Co., Ltd. Data packet transmission method and apparatus to address a high-latency caused when data is to be transmitted using an unlicensed frequency band
CN110839297B (zh) * 2018-08-15 2023-04-14 哈尔滨海能达科技有限公司 一种数据通信方法、装置和电子设备
CN111030788B (zh) * 2018-10-10 2022-05-31 上海朗帛通信技术有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN111615192B (zh) * 2019-02-22 2024-02-02 华为技术有限公司 传输数据的方法和通信装置
WO2020258273A1 (zh) * 2019-06-28 2020-12-30 北京小米移动软件有限公司 检测非授权频段的方法和检测非授权频段的装置
CN111031582B (zh) * 2019-12-12 2021-10-22 紫光展锐(重庆)科技有限公司 邻区检测方法、装置、终端设备及存储介质
WO2021142795A1 (zh) * 2020-01-17 2021-07-22 北京小米移动软件有限公司 一种数据传输的方法、装置、通信设备及存储介质
CN115834436B (zh) * 2022-11-24 2024-05-03 中国联合网络通信集团有限公司 网络连通性检测方法、装置及存储介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080146156A1 (en) * 2006-12-15 2008-06-19 Motorola, Inc. Method and system for predictive sensing of periodic intermittent interference
CN102883461A (zh) * 2012-09-21 2013-01-16 华为技术有限公司 信道接入的方法和节点
CN103843443A (zh) * 2011-09-29 2014-06-04 高通股份有限公司 用于无线通信网络的冲突减少机制
CN104363657A (zh) * 2014-11-06 2015-02-18 东莞宇龙通信科技有限公司 数据传输方法、系统和具有基站功能的设备
CN104469914A (zh) * 2014-12-10 2015-03-25 宇龙计算机通信科技(深圳)有限公司 信道检测方法及系统、基站和终端
CN104717686A (zh) * 2015-03-31 2015-06-17 深圳酷派技术有限公司 一种未授权频段的信道检测方法及网元设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9078147B2 (en) * 2013-09-13 2015-07-07 Qualcomm Incorporated Apparatus and method using common control channel carrier for frequency and time estimation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080146156A1 (en) * 2006-12-15 2008-06-19 Motorola, Inc. Method and system for predictive sensing of periodic intermittent interference
CN103843443A (zh) * 2011-09-29 2014-06-04 高通股份有限公司 用于无线通信网络的冲突减少机制
CN102883461A (zh) * 2012-09-21 2013-01-16 华为技术有限公司 信道接入的方法和节点
CN104363657A (zh) * 2014-11-06 2015-02-18 东莞宇龙通信科技有限公司 数据传输方法、系统和具有基站功能的设备
CN104469914A (zh) * 2014-12-10 2015-03-25 宇龙计算机通信科技(深圳)有限公司 信道检测方法及系统、基站和终端
CN104717686A (zh) * 2015-03-31 2015-06-17 深圳酷派技术有限公司 一种未授权频段的信道检测方法及网元设备

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