CN104363657B - Data transmission method, system and the equipment with base station functions - Google Patents

Data transmission method, system and the equipment with base station functions Download PDF

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Publication number
CN104363657B
CN104363657B CN201410625760.1A CN201410625760A CN104363657B CN 104363657 B CN104363657 B CN 104363657B CN 201410625760 A CN201410625760 A CN 201410625760A CN 104363657 B CN104363657 B CN 104363657B
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China
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channel
time
period
base station
equipment
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CN201410625760.1A
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Chinese (zh)
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CN104363657A (en
Inventor
李明菊
朱亚军
雷艺学
张云飞
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东莞宇龙通信科技有限公司
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Publication of CN104363657A publication Critical patent/CN104363657A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • H04W72/0493Wireless resource allocation where an allocation plan is defined based on a resource usage policy
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/1278Transmission of control information for scheduling
    • H04W72/1289Transmission of control information for scheduling in the downlink, i.e. towards the terminal

Abstract

A kind of data transmission method that the present invention provides LTE systems in unauthorized band operation, system and with the equipment of base station functions, data transmission method includes: the channel-monitoring subframe that setting is periodically detected downlink channel condition in the frame structure of LTE system;Within any period, if channel-monitoring subframe detects that down channel is in idle condition, the state of down channel is continued to test in the back off time of setting;If still detecting in back off time, down channel is in idle condition, and sends downlink data by the downlink subframe within any period.Technical solution of the present invention may insure that LTE system can be under the premise of unauthorized frequency range works normally, it avoids LTE system from generating biggish interference to the other systems with interference avoidance mechanism in unauthorized band operation, while also avoiding belonging to having for different operators and appearance while sending data since the time for doing channel measurement is identical between the equipment of base station functions and lead to the problem of collision.

Description

Data transmission method, system and the equipment with base station functions

Technical field

The present invention relates to fields of communication technology, in particular to a kind of number of LTE system in unauthorized band operation According to data transmission system in unauthorized band operation of transmission method, a kind of LTE system and a kind of setting with base station functions It is standby.

Background technique

Held with the sharp increase of message volume, the authorization frequency spectrum of 3GPP is less and less adequate with providing higher network Amount.In order to further increase the utilization rate of frequency spectrum resource, 3GPP is just discussing how unauthorized is used with the help of authorizing frequency spectrum Frequency spectrum, such as 2.4GHz and 5GHz frequency range.These unlicensed spectrums are presently mainly that the systems such as Wi-Fi, bluetooth, radar, medical treatment exist It uses.

Under normal conditions, be the access technology of the design of authorized spectrum band, as LTE (Long Term Evolution, for a long time Evolution) be not suitable for using in unauthorized frequency range, because this kind of access technology of LTE wants spectrum efficiency and user experience optimization Ask very high.However, carrier wave polymerization (Carrier Aggregation, CA) function allows and LTE is deployed in unauthorized frequency range becomes It may.3GPP proposes the concept of LAA (access of LTE Assisted Access, LTE auxiliary), by the side of LTE authorization frequency spectrum It helps using unlicensed spectrum.And unlicensed spectrum can there are two types of working method, one is supplement downlink (SDL, Supplemental Downlink), i.e. only downlink transfer subframe;Another kind is tdd mode, both comprising downlink subframe or wrapping Containing sub-frame of uplink.Supplementing downlink such case can only use by carrier aggregation technology.And tdd mode is in addition to can be by load Wave polymerization technique can also be used by DC (Dual Connectivity, doubly-linked are logical), can also independently be used outside.

Compared to Wi-Fi system, the LTE system in unauthorized frequency range that works has the ability to provide higher spectrum efficiency and more Big coverage effect, while allowing data traffic between authorized spectrum band and unauthorized frequency range without seaming and cutting based on the same core net It changes.For users, it means that better broadband experience, higher rate, better stability and mobile convenience.

The existing access technology used in unlicensed spectrum, such as Wi-Fi have weaker anti-interference ability.In order to It avoids interfering, Wi-Fi system devises many interference and avoids rule, such as CSMA/CD (Carrier Sense Multiple Access/Collision Detection, csma/collision detection method), the basic principle of this method It is that either terminal wants first Monitor detection week before sending signaling or data by the AP (Access Point, access point) of Wi-Fi Whether have other APs or other terminals in transmission/reception signaling or data, if so, then continuing to monitor, until listening to not if enclosing Until having;If no, generating a random number as back off time, in this back off time, if not detected letter It enables or data is transmitted, then AP or terminal can start to send signaling or data after back off time terminates.The process is as schemed Shown in 1.

But due to there is good orthogonality to ensure that interference level in LTE network, so the uplink and downlink of base station and user Transmission does not have to consider whether surrounding has other base stations or other users in transmission data.If LTE is used in unauthorized frequency range When do not consider yet around whether have other equipment use unauthorized frequency range, then great interference will be brought to Wi-Fi equipment. Because LTE is transmitted as long as having business, without any monitoring rule, then Wi-Fi equipment when LTE has business transmission just It cannot transmit, can only be transmitted until LTE business, can just detect channel clear to carry out data transmission.

As it can be seen that LTE network is when using unauthorized frequency range, one of most important key point is to ensure that LAA can be in justice It is coexisted on the basis of close friend with existing access technology (such as Wi-Fi).For this problem, it is proposed in the related technology in LTE System works in unauthorized frequency range, to the scheme that channel status is detected, i.e., number is retransmited when detecting channel idle According to otherwise not sending.But as shown in Fig. 2, if the base station of different operators time for doing Channel Detection it is identical, then not When detecting channel idle with the base station of operator, data can be sent simultaneously, cause to generate collision between each other.

Therefore, how to ensure that LTE system under the premise of unauthorized frequency range works normally, avoids LTE system non- Biggish interference is generated to other systems when authorized spectrum band works, while avoiding the base station of different operators due to doing channel measurement Time it is identical and occurring sending data simultaneously leads to generate collision as technical problem urgently to be resolved.

Summary of the invention

The present invention is based at least one above-mentioned technical problem, proposes a kind of new be suitable for base station functions Data transmission scheme of the LTE system of equipment in unauthorized band operation, it can be ensured that LTE system can be in unauthorized frequency range Under the premise of normal work, avoid LTE system dry to having due to not interfering with evacuation mechanism in unauthorized band operation The other systems for disturbing evacuation mechanism generate biggish interference, while also avoid belonging to different operators has base station functions Equipment between occur since the time for doing channel measurement is identical while sending data and lead to the problem of collision.

In view of this, according to the first aspect of the invention, proposing a kind of LTE suitable for the equipment with base station functions Data transmission method of the system in unauthorized band operation, comprising: setting is used for the period in the frame structure of the LTE system Property detection downlink channel condition channel-monitoring subframe;Within any period, if the channel-monitoring subframe detect it is described under Row channel is in idle condition, then the state of the down channel is continued to test in the back off time of setting;If being moved back described It keeps away in the time and still detects that the down channel is in idle condition, then by being in any period in the frame structure Interior downlink subframe sends downlink data.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and when channel-monitoring subframe detects that down channel is in idle condition, in the back off time of setting after It is continuous that the state of down channel is detected, so that doing channel inspection in the equipment with base station functions for belonging to different operators The time of survey is identical and when being detected simultaneously by channel idle, can also be avoided by continuing to test channel in back off time same When send data and cause between each other generate collision.I.e. in the technical scheme, for the LTE system to work in unauthorized frequency range System, provided with dual interference avoidance mechanism, i.e. other systems (such as Wi-Fi system of LTE system and work in unauthorized frequency range System) between interference and different operators LTE system between interference, it is ensured that LTE system can unauthorized frequency range just Often under the premise of work, LTE system is avoided to interfere due to not interfering with evacuation mechanism having in unauthorized band operation The other systems of evacuation mechanism generate biggish interference, at the same also avoid belonging to different operators with base station functions Occur since the time for doing channel measurement is identical between equipment while sending data and lead to the problem of collision.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that further include: within any period, if the channel-monitoring subframe is examined It is in a busy state to measure the down channel, and/or detects that the down channel is in busy in the back off time State does not then send downlink data within any period.

In the technical scheme, by within any period, if channel-monitoring subframe detects that down channel is in busy Downlink data is not sent when state, can be interfered to avoid the other systems to work in unauthorized frequency range;And by moving back It keeps away and is detected in the time and also do not send downlink data when down channel is in a busy state, it can be to avoid belonging to different operators The equipment with base station functions between due to the time for doing channel measurement it is identical and occur simultaneously send data generate collide Problem.

In the above-mentioned technical solutions, it is preferable that further include: it is randomly provided the back off time;Or it obtains and belongs to other The back off time of the equipment setting with base station functions of operator has base according to belong to other operators The back off time of itself is arranged in the back off time of the equipment setting for function of standing.

In the technical scheme, since the setting range of back off time is larger, it can more than or equal to 0 millisecond and be less than 1 millisecond, therefore, if the equipment with base station functions for belonging to different operators is randomly provided back off time, to a certain degree On can guarantee that the back off time of selection is different, and then can guarantee in the setting with base station functions for belonging to an operator When preparation send data, the equipment with base station functions for belonging to another operator does not send data, avoids and belongs to not With the collision problem for sending data simultaneously between the equipment with base station functions of operator and generating.Certainly, in order to avoid returning The back off time for belonging to the equipment setting with base station functions of different operators is identical, can also have base station functions by each Equipment according to the back off time for the equipment setting with base station functions for belonging to other operators to itself back off time It is configured.

In the above-mentioned technical solutions, it is preferable that the time that the back off time occupies in the frame structure is greater than or waits In 0 millisecond and less than 1 millisecond;The time that the channel-monitoring subframe occupies in the frame structure is greater than 0 millisecond and less than 1 milli Second.

In the above-mentioned technical solutions, it is preferable that downlink in through the frame structure within any period Frame was sent after the step of downlink data, further includes: whether the data volume for the downlink data that judgement has been sent reaches predetermined Value, if so, stopping sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

According to another aspect of the present invention, it is also proposed that another kind is suitable for the LTE system of the equipment with base station functions Data transmission method in unauthorized band operation, comprising: setting is for periodically examining in the frame structure of the LTE system Survey the channel-monitoring subframe of downlink channel condition, detection initial time of the channel-monitoring subframe within each period and ownership It is initial in detection of the channel-monitoring subframe within each period of the device configuration with base station functions of other operators Moment is identical, and detection time length of the channel-monitoring subframe within each period is runed with described other are belonged to Detection time length of the channel-monitoring subframe of the device configuration with base station functions of quotient within each period is different;? In any period, if the channel-monitoring subframe detects that the down channel is in idle condition, pass through the frame structure In downlink subframe within any period send downlink data, otherwise, line number under not sending within any period According to.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and detection initial time of the channel-monitoring subframe of different operators configuration within each period is identical, but Detection time length is different, even if so that belong to the equipment with base station functions of different operators while doing Channel Detection, Also different channel detection results can be obtained since detection time length is different, and then can be avoided and belong to different operations The equipment with base station functions of quotient done within each period Channel Detection initial time is identical and detection time length also phase Data are sent simultaneously together to cause to lead to the problem of collision between each other.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that average detected time of the channel-monitoring subframe within multiple periods is long Spend and belong to other operators the device configuration with base station functions the channel-monitoring subframe the multiple Average detected time span in period is identical.

In the technical scheme, the channel-monitoring subframe of the device configuration with base station functions of different operators is belonged to Average detected time span phase within multiple periods meanwhile, it is capable to guarantee belong to different operators with base station functions Equipment monitors subframe to the fairness of Channel Detection, the even equipment A with base station functions configurating channel in a cycle The time of occupancy be T1, with base station functions equipment B in a cycle configurating channel monitor subframe occupy time be T2, then in second period, the equipment A with base station functions can configure the time that channel-monitoring subframe occupies as T2, have The equipment B of base station functions can configure the time that channel-monitoring subframe occupies as T1.

In the above-mentioned technical solutions, it is preferable that downlink in through the frame structure within any period Frame was sent after the step of downlink data, further includes: whether the data volume for the downlink data that judgement has been sent reaches predetermined Value, if so, stopping sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

According to the third aspect of the invention we, it is also proposed that a kind of LTE system suitable for the equipment with base station functions exists Data transmission system when unauthorized band operation, comprising: the first setting unit, in the frame structure of the LTE system Channel-monitoring subframe for being periodically detected downlink channel condition is set;Detection unit, for passing through channel-monitoring Frame periodically detects the state of the down channel, and within any period, if the channel-monitoring subframe detect it is described Down channel is in idle condition, then the state of the down channel is continued to test in the back off time of setting;Processing unit, For passing through institute when the detection unit still detects that the down channel is in idle condition in the back off time It states the downlink subframe in frame structure within any period and sends downlink data.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and when channel-monitoring subframe detects that down channel is in idle condition, in the back off time of setting after It is continuous that the state of down channel is detected, so that doing channel inspection in the equipment with base station functions for belonging to different operators The time of survey is identical and when being detected simultaneously by channel idle, can also be avoided by continuing to test channel in back off time same When send data and cause between each other generate collision.I.e. in the technical scheme, for the LTE system to work in unauthorized frequency range System, provided with dual interference avoidance mechanism, i.e. other systems (such as Wi-Fi system of LTE system and work in unauthorized frequency range System) between interference and different operators LTE system between interference, it is ensured that LTE system can unauthorized frequency range just Often under the premise of work, LTE system is avoided to interfere due to not interfering with evacuation mechanism having in unauthorized band operation The other systems of evacuation mechanism generate biggish interference, at the same also avoid belonging to different operators with base station functions Occur since the time for doing channel measurement is identical between equipment while sending data and lead to the problem of collision.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that the processing unit is also used to: within any period, if the inspection It surveys unit and detects that the down channel is in a busy state and/or the detection unit exists by the channel-monitoring subframe Detect that the down channel is in a busy state in the back off time, then line number under not sending within any period According to.

In the technical scheme, by within any period, if channel-monitoring subframe detects that down channel is in busy Downlink data is not sent when state, can be interfered to avoid the other systems to work in unauthorized frequency range;And by moving back It keeps away and is detected in the time and also do not send downlink data when down channel is in a busy state, it can be to avoid belonging to different operators The equipment with base station functions between due to the time for doing channel measurement it is identical and occur simultaneously send data generate collide Problem.

In the above-mentioned technical solutions, it is preferable that further include: the second setting unit, for being randomly provided the back off time; Or acquiring unit, for obtaining the back off time for belonging to the equipment setting with base station functions of other operators;The Three setting units, for the setting with base station functions according to the information acquired by the acquisition unit for belonging to other operators The back off time of itself is arranged in the back off time of standby setting.

In the technical scheme, since the setting range of back off time is larger, it can more than or equal to 0 millisecond and be less than 1 millisecond, therefore, if the equipment with base station functions for belonging to different operators is randomly provided back off time, to a certain degree On can guarantee that the back off time of selection is different, and then can guarantee in the setting with base station functions for belonging to an operator When preparation send data, the equipment with base station functions for belonging to another operator does not send data, avoids and belongs to not With the collision problem for sending data simultaneously between the equipment with base station functions of operator and generating.Certainly, in order to avoid returning The back off time for belonging to the equipment setting with base station functions of different operators is identical, can also have base station functions by each Equipment according to the back off time for the equipment setting with base station functions for belonging to other operators to itself back off time It is configured.

In the above-mentioned technical solutions, it is preferable that the time that the back off time occupies in the frame structure is greater than or waits In 0 millisecond and less than 1 millisecond;The time that the channel-monitoring subframe occupies in the frame structure is greater than 0 millisecond and less than 1 milli Second.

In the above-mentioned technical solutions, it is preferable that further include: judging unit, for judging the downlink data sent Data volume whether reach predetermined value;The processing unit is also used to, and the downlink sent is determined in the judging unit When the data volume of data reaches the predetermined value, stop sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

According to the fourth aspect of the invention, it is also proposed that another kind is suitable for the LTE system of the equipment with base station functions Data transmission system in unauthorized band operation, comprising: setting unit, for being set in the frame structure of the LTE system Set the channel-monitoring subframe for being periodically detected downlink channel condition, detection of the channel-monitoring subframe within each period Initial time with belong to other operators the device configuration with base station functions the channel-monitoring subframe in each week Detection initial time in phase is identical, and detection time length of the channel-monitoring subframe within each period and ownership In detection of the channel-monitoring subframe within each period of the device configuration with base station functions of other operators Time span is different;Processing unit is used within any period, if the channel-monitoring subframe detects at the down channel In idle state, then downlink data is sent by the downlink subframe in the frame structure within any period, otherwise, Downlink data is not sent in any period.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and detection initial time of the channel-monitoring subframe of different operators configuration within each period is identical, but Detection time length is different, even if so that belong to the equipment with base station functions of different operators while doing Channel Detection, Also different channel detection results can be obtained since detection time length is different, and then can be avoided and belong to different operations The equipment with base station functions of quotient done within each period Channel Detection initial time is identical and detection time length also phase Data are sent simultaneously together to cause to lead to the problem of collision between each other.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that average detected time of the channel-monitoring subframe within multiple periods is long Spend and belong to other operators the device configuration with base station functions the channel-monitoring subframe the multiple Average detected time span in period is identical.

In the technical scheme, the channel-monitoring subframe of the device configuration with base station functions of different operators is belonged to Average detected time span phase within multiple periods meanwhile, it is capable to guarantee belong to different operators with base station functions Equipment monitors subframe to the fairness of Channel Detection, the even equipment A with base station functions configurating channel in a cycle The time of occupancy be T1, with base station functions equipment B in a cycle configurating channel monitor subframe occupy time be T2, then in second period, the equipment A with base station functions can configure the time that channel-monitoring subframe occupies as T2, have The equipment B of base station functions can configure the time that channel-monitoring subframe occupies as T1.

In the above-mentioned technical solutions, it is preferable that further include: judging unit, for judging the downlink data sent Data volume whether reach predetermined value;The processing unit is also used to, and the downlink sent is determined in the judging unit When the data volume of data reaches the predetermined value, stop sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

According to the fifth aspect of the invention, it is also proposed that a kind of equipment with base station functions, comprising: any of the above-described skill Data transmission system of the LTE system described in art scheme in unauthorized band operation.

Pass through above technical scheme, it can be ensured that LTE system can avoid under the premise of unauthorized frequency range works normally LTE system produces the other systems with interference avoidance mechanism due to not interfering with evacuation mechanism in unauthorized band operation Raw biggish interference, while also avoiding belonging between the equipment with base station functions of different operators due to doing channel survey The time of amount is identical and occurs while sending data and lead to the problem of collision.

Detailed description of the invention

The interference that Fig. 1 shows Wi-Fi system avoids the schematic diagram of rule;

Fig. 2 shows the schematic diagrames to collide between the base station of different operators in existing scheme;

Fig. 3 shows the LTE system according to an embodiment of the invention for being suitable for the equipment with base station functions and exists The schematic flow diagram of data transmission method when unauthorized band operation;

Fig. 4 shows the LTE system according to an embodiment of the invention for being suitable for the equipment with base station functions and exists The schematic block diagram of data transmission system when unauthorized band operation;

Fig. 5 shows the LTE system for being suitable for the equipment with base station functions according to another embodiment of the invention The schematic flow diagram of data transmission method in unauthorized band operation;

Fig. 6 shows the LTE system for being suitable for the equipment with base station functions according to another embodiment of the invention The schematic block diagram of data transmission system in unauthorized band operation;

Fig. 7 shows the frame structure schematic diagram of the LTE system of embodiment according to the present invention;

Fig. 8 is shown between the equipment with base station functions of different operators according to an embodiment of the invention Interference avoids schematic diagram;

Fig. 9 is shown between the equipment with base station functions of different operators according to another embodiment of the invention Interference avoid schematic diagram.

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Fig. 3 shows the LTE system according to an embodiment of the invention for being suitable for the equipment with base station functions and exists The schematic flow diagram of data transmission method when unauthorized band operation.

As shown in figure 3, the LTE system according to an embodiment of the invention for being suitable for the equipment with base station functions exists Data transmission method when unauthorized band operation, comprising: step 302, setting is for week in the frame structure of the LTE system The channel-monitoring subframe of phase property detection downlink channel condition;Step 304, within any period, if the channel-monitoring subframe is examined It measures the down channel to be in idle condition, then continues to test the state of the down channel in the back off time of setting; Step 306, if still detecting in the back off time, the down channel is in idle condition, and passes through the frame structure In downlink subframe within any period send downlink data.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and when channel-monitoring subframe detects that down channel is in idle condition, in the back off time of setting after It is continuous that the state of down channel is detected, so that doing channel inspection in the equipment with base station functions for belonging to different operators The time of survey is identical and when being detected simultaneously by channel idle, can also be avoided by continuing to test channel in back off time same When send data and cause between each other generate collision.I.e. in the technical scheme, for the LTE system to work in unauthorized frequency range System, provided with dual interference avoidance mechanism, i.e. other systems (such as Wi-Fi system of LTE system and work in unauthorized frequency range System) between interference and different operators LTE system between interference, it is ensured that LTE system can unauthorized frequency range just Often under the premise of work, LTE system is avoided to interfere due to not interfering with evacuation mechanism having in unauthorized band operation The other systems of evacuation mechanism generate biggish interference, at the same also avoid belonging to different operators with base station functions Occur since the time for doing channel measurement is identical between equipment while sending data and lead to the problem of collision.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that further include: within any period, if the channel-monitoring subframe is examined It is in a busy state to measure the down channel, and/or detects that the down channel is in busy in the back off time State does not then send downlink data within any period.

In the technical scheme, by within any period, if channel-monitoring subframe detects that down channel is in busy Downlink data is not sent when state, can be interfered to avoid the other systems to work in unauthorized frequency range;And by moving back It keeps away and is detected in the time and also do not send downlink data when down channel is in a busy state, it can be to avoid belonging to different operators The equipment with base station functions between due to the time for doing channel measurement it is identical and occur simultaneously send data generate collide Problem.

In the above-mentioned technical solutions, it is preferable that further include: it is randomly provided the back off time;Or it obtains and belongs to other The back off time of the equipment setting with base station functions of operator has base according to belong to other operators The back off time of itself is arranged in the back off time of the equipment setting for function of standing.

In the technical scheme, since the setting range of back off time is larger, it can more than or equal to 0 millisecond and be less than 1 millisecond, therefore, if the equipment with base station functions for belonging to different operators is randomly provided back off time, to a certain degree On can guarantee that the back off time of selection is different, and then can guarantee in the setting with base station functions for belonging to an operator When preparation send data, the equipment with base station functions for belonging to another operator does not send data, avoids and belongs to not With the collision problem for sending data simultaneously between the equipment with base station functions of operator and generating.Certainly, in order to avoid returning The back off time for belonging to the equipment setting with base station functions of different operators is identical, can also have base station functions by each Equipment according to the back off time for the equipment setting with base station functions for belonging to other operators to itself back off time It is configured.

In the above-mentioned technical solutions, it is preferable that the time that the back off time occupies in the frame structure is greater than or waits In 0 millisecond and less than 1 millisecond;The time that the channel-monitoring subframe occupies in the frame structure is greater than 0 millisecond and less than 1 milli Second.

In the above-mentioned technical solutions, it is preferable that downlink in through the frame structure within any period Frame was sent after the step of downlink data, further includes: whether the data volume for the downlink data that judgement has been sent reaches predetermined Value, if so, stopping sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

Fig. 4 shows the LTE system according to an embodiment of the invention for being suitable for the equipment with base station functions and exists The schematic block diagram of data transmission system when unauthorized band operation.

As shown in figure 4, the LTE system according to an embodiment of the invention for being suitable for the equipment with base station functions exists Data transmission system 400 when unauthorized band operation, comprising: the first setting unit 402, for the frame in the LTE system Channel-monitoring subframe for being periodically detected downlink channel condition is set in structure;Detection unit 404, for passing through the letter Road detects the state of the down channel with monitoring period of sub-frame, and within any period, if the channel-monitoring subframe is examined It measures the down channel to be in idle condition, then continues to test the state of the down channel in the back off time of setting; Processing unit 406, for still detecting that the down channel is in sky in the back off time when the detection unit 404 When not busy state, downlink data is sent by the downlink subframe being in any period in the frame structure.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and when channel-monitoring subframe detects that down channel is in idle condition, in the back off time of setting after It is continuous that the state of down channel is detected, so that doing channel inspection in the equipment with base station functions for belonging to different operators The time of survey is identical and when being detected simultaneously by channel idle, can also be avoided by continuing to test channel in back off time same When send data and cause between each other generate collision.I.e. in the technical scheme, for the LTE system to work in unauthorized frequency range System, provided with dual interference avoidance mechanism, i.e. other systems (such as Wi-Fi system of LTE system and work in unauthorized frequency range System) between interference and different operators LTE system between interference, it is ensured that LTE system can unauthorized frequency range just Often under the premise of work, LTE system is avoided to interfere due to not interfering with evacuation mechanism having in unauthorized band operation The other systems of evacuation mechanism generate biggish interference, at the same also avoid belonging to different operators with base station functions Occur since the time for doing channel measurement is identical between equipment while sending data and lead to the problem of collision.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that the processing unit 406 is also used to: within any period, if described Detection unit 404 detects that the down channel is in a busy state and/or the detection is single by the channel-monitoring subframe Member 404 detects that the down channel is in a busy state in the back off time, then does not send within any period Downlink data.

In the technical scheme, by within any period, if channel-monitoring subframe detects that down channel is in busy Downlink data is not sent when state, can be interfered to avoid the other systems to work in unauthorized frequency range;And by moving back It keeps away and is detected in the time and also do not send downlink data when down channel is in a busy state, it can be to avoid belonging to different operators The equipment with base station functions between due to the time for doing channel measurement it is identical and occur simultaneously send data generate collide Problem.

In the above-mentioned technical solutions, it is preferable that further include: the second setting unit 408, when for being randomly provided described keep out of the way Between;Or acquiring unit 410, for obtain belong to other operators with base station functions equipment setting described in keep out of the way when Between;Third setting unit 412 belongs to having for other operators for what is got according to the acquiring unit 410 The back off time of itself is arranged in the back off time of the equipment setting of base station functions.

In the technical scheme, since the setting range of back off time is larger, it can more than or equal to 0 millisecond and be less than 1 millisecond, therefore, if the equipment with base station functions for belonging to different operators is randomly provided back off time, to a certain degree On can guarantee that the back off time of selection is different, and then can guarantee in the setting with base station functions for belonging to an operator When preparation send data, the equipment with base station functions for belonging to another operator does not send data, avoids and belongs to not With the collision problem for sending data simultaneously between the equipment with base station functions of operator and generating.Certainly, in order to avoid returning The back off time for belonging to the equipment setting with base station functions of different operators is identical, can also have base station functions by each Equipment according to the back off time for the equipment setting with base station functions for belonging to other operators to itself back off time It is configured.

In the above-mentioned technical solutions, it is preferable that the time that the back off time occupies in the frame structure is greater than or waits In 0 millisecond and less than 1 millisecond;The time that the channel-monitoring subframe occupies in the frame structure is greater than 0 millisecond and less than 1 milli Second.

In the above-mentioned technical solutions, it is preferable that further include: judging unit 414, for judging the lower line number sent According to data volume whether reach predetermined value;The processing unit 406 is also used to, the judging unit judgement sent described in When the data volume of downlink data reaches the predetermined value, stop sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

Fig. 5 shows the LTE system for being suitable for the equipment with base station functions according to another embodiment of the invention The schematic flow diagram of data transmission method in unauthorized band operation.

As shown in figure 5, the LTE system for being suitable for the equipment with base station functions according to another embodiment of the invention Data transmission method in unauthorized band operation, comprising: step 502, be arranged in the frame structure of the LTE system and be used for It is periodically detected the channel-monitoring subframe of downlink channel condition, when detection of the channel-monitoring subframe within each period is initial The channel-monitoring subframe of the device configuration with base station functions of other operators is carved and belonged within each period It is identical to detect initial time, and detection time length of the channel-monitoring subframe within each period and belongs to described Detection time of the channel-monitoring subframe of the device configuration with base station functions of other operators within each period is long Degree is different;Step 504, within any period, if the channel-monitoring subframe detects that the down channel is in idle condition, Downlink data is then sent by the downlink subframe in the frame structure within any period, otherwise, in any week Downlink data is not sent in phase.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and detection initial time of the channel-monitoring subframe of different operators configuration within each period is identical, but Detection time length is different, even if so that belong to the equipment with base station functions of different operators while doing Channel Detection, Also different channel detection results can be obtained since detection time length is different, and then can be avoided and belong to different operations The equipment with base station functions of quotient done within each period Channel Detection initial time is identical and detection time length also phase Data are sent simultaneously together to cause to lead to the problem of collision between each other.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes macro base station and by communication equipment (such as intelligence Can mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that average detected time of the channel-monitoring subframe within multiple periods is long Spend and belong to other operators the device configuration with base station functions the channel-monitoring subframe the multiple Average detected time span in period is identical.

In the technical scheme, the channel-monitoring subframe of the device configuration with base station functions of different operators is belonged to Average detected time span phase within multiple periods meanwhile, it is capable to guarantee belong to different operators with base station functions Equipment monitors subframe to the fairness of Channel Detection, the even equipment A with base station functions configurating channel in a cycle The time of occupancy be T1, with base station functions equipment B in a cycle configurating channel monitor subframe occupy time be T2, then in second period, the equipment A with base station functions can configure the time that channel-monitoring subframe occupies as T2, have The equipment B of base station functions can configure the time that channel-monitoring subframe occupies as T1.

In the above-mentioned technical solutions, it is preferable that downlink in through the frame structure within any period Frame was sent after the step of downlink data, further includes: whether the data volume for the downlink data that judgement has been sent reaches predetermined Value, if so, stopping sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function Can the data volume that sends in one cycle of equipment controlled, and then being capable of having in not homologous ray or different operators When demand of the equipment of base station functions to channel is larger, it is able to carry out scheduling appropriate, avoids a system or an operation The equipment long-time busy channel with base station functions of quotient and influencing other systems or other operators has base station functions The working efficiency of equipment.

Fig. 6 shows the LTE system for being suitable for the equipment with base station functions according to another embodiment of the invention The schematic block diagram of data transmission system in unauthorized band operation.

As shown in fig. 6, the LTE system for being suitable for the equipment with base station functions according to another embodiment of the invention Data transmission system 600 in unauthorized band operation, comprising: setting unit 602, for the frame knot in the LTE system Channel-monitoring subframe for being periodically detected downlink channel condition is set in structure, and the channel-monitoring subframe is within each period Detection initial time and the channel-monitoring subframe of the device configuration with base station functions that belongs to other operators exist Detection initial time in each period is identical, and detection time length of the channel-monitoring subframe within each period The channel-monitoring subframe with the device configuration with base station functions for belonging to other operators is within each period Detection time length it is different;Processing unit 604, within any period, if the channel-monitoring subframe detect it is described Down channel is in idle condition, then sends lower line number by the downlink subframe being in any period in the frame structure According to otherwise, not sending downlink data within any period.

In the technical scheme, by the way that channel-monitoring subframe is arranged in the frame structure of LTE system to the shape of down channel State is detected, and detection initial time of the channel-monitoring subframe of different operators configuration within each period is identical, but Detection time length is different, even if so that belong to the equipment with base station functions of different operators while doing Channel Detection, Also different channel detection results can be obtained since detection time length is different, and then can be avoided and belong to different operations The equipment with base station functions of quotient done within each period Channel Detection initial time is identical and detection time length also phase Data are sent simultaneously together to cause to lead to the problem of collision between each other.

Wherein, above-mentioned downlink data had both included common interaction data, also including control signaling etc..The technology of this field Personnel are it will also be understood that the heretofore described equipment with base station functions includes all macro base stations and passes through communication equipment The microcell base station etc. that (such as smart phone) is realized.

In the above-mentioned technical solutions, it is preferable that average detected time of the channel-monitoring subframe within multiple periods is long Spend and belong to other operators the device configuration with base station functions the channel-monitoring subframe the multiple Average detected time span in period is identical.

In the technical scheme, the channel-monitoring subframe of the device configuration with base station functions of different operators is belonged to Average detected time span phase within multiple periods meanwhile, it is capable to guarantee belong to different operators with base station functions Equipment monitors subframe to the fairness of Channel Detection, the even equipment A with base station functions configurating channel in a cycle The time of occupancy be T1, with base station functions equipment B in a cycle configurating channel monitor subframe occupy time be T2, then in second period, the equipment A with base station functions can configure the time that channel-monitoring subframe occupies as T2, have The equipment B of base station functions can configure the time that channel-monitoring subframe occupies as T1.

In the above-mentioned technical solutions, it is preferable that further include: judging unit 606, for judging the lower line number sent According to data volume whether reach predetermined value;The processing unit 604 is also used to, and has been sent in the judging unit 606 judgement When the data volume of the downlink data reaches the predetermined value, stop sending the downlink data within any period.

In the technical scheme, by judging the downlink data amount sent, make it possible to base station function The data volume that the equipment of energy is sent in one cycle is controlled, and then in not homologous ray or can belong to different operators Demand of the equipment with base station functions to channel it is larger when, be able to carry out scheduling appropriate, avoid a system or return Belong to the equipment long-time busy channel with base station functions an of operator and influences other systems or belong to other fortune Seeking quotient has the working efficiency of equipment of base station functions.

The equipment (not shown) with base station functions that the invention also provides a kind of, comprising: LTE as shown in Figure 4 Data transmission system 400 or as shown in FIG. 6 LTE system of the system in unauthorized band operation are in unauthorized band operation When data transmission system 600.

Specifically, present invention is generally directed between LAA system collision and LAA to the collision problem of Wi-Fi, propose Backoff (keeps out of the way) mechanism and dynamic LBT (Listen Before Talk) time span mechanism, so that on the basis of LBT On be further reduced different operators base station (for ease of description, being illustrated by taking base station as an example below, those skilled in the art Member it will be appreciated that base station can be all equipment with base station functions) between collision probability.

Concrete scheme of the invention is as follows:

Method one: it is based on the random backoff time

In LAA system, after LBT detects channel status as the free time, data are not sent immediately, but randomly choose one A backoff time, in the backoff time, if LBT detection channel status or free time, terminate in the backoff time After send data.

Specifically, as shown in fig. 7, in a LBT period t3, channel measurement is done within the t1 time, i.e. LBT subframe occupies Time is t1, and the setting backoff time is t2, if not only detecting channel idle within the t1 time, but also is detected within the t2 time Channel idle can then send downlink data.

Wherein, the time span t2 that backoff is occupied is between 0 millisecond to 1 millisecond.By the way that backoff mechanism is arranged, Even if so that the base station of A operator with the LBT time of the base station of B operator as length, then in the base of A and B operator It stands after all detecting channel idle, if the two has randomly choosed the backoff time, selects the backoff time different Probability be very big.As shown in figure 8, the backoff time (t2) that the base station of such as A operator is selected is shorter, the base of B operator Stand choosing the backoff time (t2 ') it is longer.If the base station of A operator, within the backoff time, discovery LBT detection channel is still Free time, then the base station of A operator after the backoff time, sends data.And the base station of B operator is in the backoff phase Between data are sent due to the base station of A operator so that the LBT testing result of the base station of B operator becomes channel busy, so The base station of B operator cannot send data within this period, avoid to collide in this way.

Certainly, the backoff time being arranged between the base station of different operators may not be random selection, but directly It is configured, i.e., is directly set for the base station of different operators the different backoff time.

Method two: dynamic LBT time span mechanism

The LBT detection time starting point that the base station of different operators is arranged is the same, but LBT detection time length is different, And the LBT detection time length in the same operator different LBT period occurs in turn.

Specifically, as shown in figure 9, such as three operators, then three LBT detection time length of setting, be denoted as 1,2, 3.It is respectively 1,2,3 in the LBT detection time length of first LBT detection time, A, B, C operator;Second detection cycle Middle LBT detection time length is respectively 2,3,1;LBT detection time length is respectively 3,1,2 in third detection cycle.And it presses The above process is repeated.

In this case, different operators needs to select different LBT detection time length, when there is data transmission When, the maximum probability of the shortest busy channel of LBT detection time.But since LBT detection time length is changing, that is to say, that Each operator is big in the probability of a cycle busy channel, the probability of another period busy channel with regard to small, so and Fair.

In addition, being directed to above two method, the data volume that base station is sent in one cycle can also be controlled, into And the base station of being capable of different operators it is all larger to the demand of channel when, be able to carry out scheduling appropriate, avoid an operation The base station long-time busy channel of quotient and the working efficiency for influencing other operator base stations.

The technical scheme of the present invention has been explained in detail above with reference to the attached drawings, proposes a kind of new be suitable for base station function Data transmission scheme of the LTE system of the equipment of energy in unauthorized band operation, it can be ensured that LTE system can be unauthorized Under the premise of frequency range works normally, avoid LTE system in unauthorized band operation due to not interfering with evacuation mechanism and to tool There are the other systems of interference avoidance mechanism to generate biggish interference, at the same also avoid different operators with base station functions Occur since the time for doing channel measurement is identical between equipment while sending data and lead to the problem of collision.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (11)

1. a kind of data transmission method of LTE system in unauthorized band operation, suitable for the equipment with base station functions, It is characterized in that, comprising:
Channel-monitoring subframe for being periodically detected downlink channel condition is set in the frame structure of the LTE system;
Within any period, if the channel-monitoring subframe detects that the down channel is in idle condition, in setting The state of the down channel is continued to test in back off time;
If still detecting in the back off time, the down channel is in idle condition, by the frame structure Downlink data is sent in the downlink subframe in any period;
It is randomly provided the back off time;Or
The back off time for belonging to the equipment setting with base station functions of other operators is obtained, it is according to belonging to The back off time of itself is arranged in the back off time of the equipment setting with base station functions of other operators;
The time that the back off time occupies in the frame structure is greater than or equal to 0 millisecond and less than 1 millisecond;
The time that the channel-monitoring subframe occupies in the frame structure is greater than 0 millisecond and less than 1 millisecond;
After the step of sending downlink data by the downlink subframe in the frame structure within any period, also wrap It includes:
Judge whether the data volume of the downlink data sent reaches predetermined value, if so, stopping within any period Only send the downlink data.
2. data transmission method of the LTE system according to claim 1 in unauthorized band operation, which is characterized in that Further include:
Within any period, if the channel-monitoring subframe detects that the down channel is in a busy state, and/or Detect that the down channel is in a busy state in the back off time, then line number under not sending within any period According to.
3. a kind of data transmission method of LTE system in unauthorized band operation, suitable for the equipment with base station functions, It is characterized in that, comprising:
Channel-monitoring subframe for being periodically detected downlink channel condition is set in the frame structure of the LTE system, it is described Detection initial time of the channel-monitoring subframe within each period and the equipment with base station functions for belonging to other operators Detection initial time of the channel-monitoring subframe of configuration within each period is identical, and the channel-monitoring subframe is described Detection time length in each period is described with the device configuration with base station functions that belongs to other operators Detection time length of the channel-monitoring subframe within each period is different;
Within any period, if the channel-monitoring subframe detects that the down channel is in idle condition, by described Downlink subframe in frame structure within any period sends downlink data and does not otherwise send within any period Downlink data.
4. data transmission method of the LTE system according to claim 3 in unauthorized band operation, which is characterized in that Average detected time span of the channel-monitoring subframe within multiple periods has base with belong to other operators Average detected time span of the channel-monitoring subframe of the device configuration for function of standing within the multiple period is identical.
5. data transmission method of the LTE system according to claim 3 in unauthorized band operation, which is characterized in that After the step of sending downlink data by the downlink subframe in the frame structure within any period, further includes:
Judge whether the data volume of the downlink data sent reaches predetermined value, if so, stopping within any period Only send the downlink data.
6. a kind of data transmission system of LTE system in unauthorized band operation, suitable for the equipment with base station functions, It is characterized in that, comprising:
First setting unit, for being arranged in the frame structure of the LTE system for being periodically detected downlink channel condition Channel-monitoring subframe;
Detection unit, for detecting the state of the down channel by the channel-monitoring period of sub-frame, and any In period, if the channel-monitoring subframe detects that the down channel is in idle condition, in the back off time of setting Continue to test the state of the down channel;
Processing unit, for still detecting that the down channel is in the free time in the back off time when the detection unit When state, downlink data is sent by the downlink subframe being in any period in the frame structure;
Second setting unit, for being randomly provided the back off time;Or
Acquiring unit, for obtaining the back off time for belonging to the equipment setting with base station functions of other operators; Third setting unit, for it is according to the information acquired by the acquisition unit belong to other operators with base station functions The back off time of itself is arranged in the back off time of equipment setting;
The time that the back off time occupies in the frame structure is greater than or equal to 0 millisecond and less than 1 millisecond;
The time that the channel-monitoring subframe occupies in the frame structure is greater than 0 millisecond and less than 1 millisecond;
Judging unit, for judging whether the data volume of the downlink data sent reaches predetermined value;
The processing unit is also used to, and determines that the data volume of the downlink data sent reaches described in the judging unit When predetermined value, stop sending the downlink data within any period.
7. data transmission system of the LTE system according to claim 6 in unauthorized band operation, which is characterized in that The processing unit is also used to:
Within any period, if the detection unit detects that the down channel is in by the channel-monitoring subframe Busy state and/or the detection unit detect that the down channel is in a busy state in the back off time, then exist Downlink data is not sent in any period.
8. a kind of data transmission system of LTE system in unauthorized band operation, suitable for the equipment with base station functions, It is characterized in that, comprising:
Setting unit, for the channel for being periodically detected downlink channel condition to be arranged in the frame structure of the LTE system Monitor subframe, detection initial time of the channel-monitoring subframe within each period with belong to other operators with base Detection initial time of the channel-monitoring subframe of the device configuration for function of standing within each period is identical, and the channel is supervised It listens detection time length of the subframe within each period and belongs to the setting with base station functions of other operators Detection time length of the channel-monitoring subframe of standby configuration within each period is different;
Processing unit was used within any period, if the channel-monitoring subframe detects that the down channel is in idle shape State then sends downlink data by the downlink subframe in the frame structure within any period, otherwise, described any Downlink data is not sent in period.
9. data transmission system of the LTE system according to claim 8 in unauthorized band operation, which is characterized in that Average detected time span of the channel-monitoring subframe within multiple periods has base with belong to other operators Average detected time span of the channel-monitoring subframe of the device configuration for function of standing within the multiple period is identical.
10. data transmission system of the LTE system according to claim 8 in unauthorized band operation, which is characterized in that Further include:
Judging unit, for judging whether the data volume of the downlink data sent reaches predetermined value;
The processing unit is also used to, and determines that the data volume of the downlink data sent reaches described in the judging unit When predetermined value, stop sending the downlink data within any period.
11. a kind of equipment with base station functions characterized by comprising as described in any one of claim 6 to 10 Data transmission system of the LTE system in unauthorized band operation.
CN201410625760.1A 2014-11-06 2014-11-06 Data transmission method, system and the equipment with base station functions CN104363657B (en)

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