CN104717687B

CN104717687B - Method of adjustment, adjustment system and the equipment of channel occupancy probabilities

Info

Publication number: CN104717687B
Application number: CN201510167205.3A
Authority: CN
Inventors: 李明菊; 朱亚军; 张云飞; 何成名
Original assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Current assignee: Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority date: 2015-04-09
Filing date: 2015-04-09
Publication date: 2018-07-27
Anticipated expiration: 2035-04-09
Also published as: CN104717687A; WO2016161710A1

Abstract

The present invention proposes a kind of method of adjustment of channel occupancy probabilities, a kind of adjustment system of channel occupancy probabilities and a kind of equipment with base station functions, the method for adjustment of channel occupancy probabilities：According to the data type of the data to be sent of the equipment with base station functions, the parameter information of the Channel Detection mechanism corresponding to the data to be sent is adjusted；According to the parameter information after adjustment, the adjustment data to be sent occupy the probability of down channel, wherein the data type of the data to be sent includes：It was found that reference signal and/or downlink data.Technical solution through the invention, the LBT mechanism that transmission DRS can be improved seizes the ability of channel, discovery reference signal is set to be easier busy channel or at least seize probability with the LBT mechanism channel having the same for sending generic downlink data, to reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation, accuracy is improved.

Description

Method of adjustment, adjustment system and the equipment of channel occupancy probabilities

Technical field

The present invention relates to fields of communication technology, in particular to a kind of method of adjustment of channel occupancy probabilities, Yi Zhongxin The adjustment system of road acquistion probability and a kind of equipment with base station functions.

Background technology

Held with providing higher network with the sharp increase of message volume, the mandate frequency spectrum of 3GPP is less and less adequate 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 ranges.These unlicensed spectrums are presently mainly that the systems such as Wi-Fi, bluetooth, radar, medical treatment exist It uses.

Under normal conditions, be authorized spectrum band design access technology, as LTE (Long Term Evolution, for a long time Evolution) be not suitable for using in unauthorized frequency range, because this kind of access technologies of LTE want 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), and the side of frequency spectrum is authorized by LTE It helps to use 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, has both included downlink subframe, uplink Subframe.Supplement downlink such case can only use (as shown in Figure 1) by carrier aggregation technology.And tdd mode is in addition to can be with By carrier aggregation technology outside, it can also be used by DC (Dual Connectivity, doubly-linked are logical), it can also be independent It uses.

Compared to Wi-Fi systems, the LTE system for being operated in unauthorized frequency range 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 facility.

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 systems devise many interference and avoid 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-end 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 Order or data transmission, then after back off time terminates, AP or terminal can start to send signaling or data.The process is as schemed Shown in 2.

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.

So LTE is when using unauthorized frequency range, one of most important key point is to ensure that LAA (LTE assisted The access technology of access, LTE auxiliary) it can be total to existing access technology (such as WiFi) on the basis of fair friendly It deposits.And there is no the mechanism of LBT (Listen Before Talk, listem-before-talk) in traditional LTE system to avoid collision.In order to It is preferably coexisted with WiFi, LTE needs a kind of LBT mechanism.In this way, LTE in unlicensed spectrum if detecting channel busy, The frequency range cannot be occupied, if detecting the channel spare time, could be occupied.

Based on the above issues, at present, it is proposed that a kind of (FBE, Framed based equipment) based on frame structure LBT mechanism (as shown in Figure 3), left oblique line is the channel of CCA (Clear Channel Assessment, clear channel assessment (CCA)) Detection time, CCA detection times are repeated cyclically appearance, if detecting channel idle, busy channel, in Channel holding time After reaching maximum channel holding time, there are one the idle times, and in the idle times, sending point does not send signal and data, with Channel is seized convenient for other sending points.After the idle times, and there are CCA detection times, if detecting channel busy, does not account for With channel, channel is detected again when the CCA detection times in next period occur.Certainly, Channel Detection Time also belongs to Idle times, idle durations have to be larger than the 5% of channel maximum holding time.The Idle times are plus channel occupancy maximum time Period.

At present, it is also proposed that a kind of following Fig. 4 of LBT mechanism of (LBE, Load based equipment) based on load It is shown：LBT mechanism based on LBE is no periodic, as long as business reaches, then triggers CCA detections, if CCA detections are idle, Signaling or data are sent at once；If detecting channel busy, a random number N, the value range of N is taken to arrive q (i.e. contention windows for 1 Mouth length), the value range of q is 4 to 32.Fig. 4 shows the case where q=16, at this point, when detecting channel idle, channel Maximum holding time is (13/32) x q=6.5ms.After 6.5ms, take extended CCA (when extended Channel Detection Between) mechanism, that is, it is also ranging from 1 to the 16 of random value N, N, if value is 8, then it represents that examined in next continuous CCA It surveys in the time, each CCA detection times will detect channel, if detecting channel idle, N-1, if detecting channel busy, N is constant, when N is 0, sends signaling or data.

In addition, being used for RRM (Radio Resource Management, wireless resource management) measurements, cell in LAA The reference signal of identification, down-going synchronous, time-frequency estimation etc. is realized there are two types of mode：One is short control Signaling (controls signal) in short-term, and it is can have 5% time short in transmission in 50ms that this mode, which needs the requirement met, When control signal, that is, 2.5ms.Another kind is to send aperiodic DRS (Discovery Reference Signal, hair Referring now to signal) because the time of 6ms need to be occupied by sending DRS, and if also sent when detecting channel busy, will give other System brings larger interference, so if it is DRS is sent, can only just be sent when detecting channel idle, then DRS is exactly It is aperiodic.

In addition, since terminal either transmission data still receives data, it is necessary in advance according to the descending reference of base station Signal (i.e. DRS signals) realizes cell identification, down-going synchronous, time-frequency estimation etc., therefore, when DRS must be in the Channel Detection free time When could send, some LAA cells by the UE of adjacent cell in order to be measured, even if no data service needs to send, these LAA Cell will also carry out LBT Channel Detections, and when detecting channel idle, send DRS.But if in the same frequency LAA cells send time of reference signal DRS it is too random if, terminal needs to consume more power to measure adjacent cell, Especially different-frequency measure when, may not be robbed due to adjacent cell and account for channel, cannot send DRS, and terminal is being surveyed The reference signal DRS of one adjacent cell can't detect when the measurement gap of amount interval.Moreover, if LAA zone leader If time cannot send reference signal DRS, terminal accuracy of measurement can be caused relatively low.So how to ensure to send reference signal When DRS, can robbing for more maximum probability account for channel

Therefore, it how during Channel Detection, either uses the LBT mechanism based on frame structure still to use and is based on The LBT mechanism of load, the LBT mechanism that can improve transmission DRS seize the ability of channel, its are made relatively to send generic downlink data LBT mechanism be easier to rob and account for channel or at least seized with the LBT mechanism channel having the same for sending generic downlink data Probability is carried with reducing terminal measuring reference signals DRS, carrying out the power consumption consumed when cell identification, down-going synchronous, time-frequency are estimated High accuracy becomes urgent problem to be solved.

Invention content

The present invention is based on the above problem, it is proposed that a kind of new technical solution so that during Channel Detection, No matter send the LBT mechanism of DRS and send the common LBT mechanism for sending downlink data be LBT mechanism based on frame structure or Using the LBT mechanism based on load, the LBT mechanism that can improve transmission DRS seizes the ability of channel, so that it is relatively sent common The LBT mechanism of downlink data, which is easier to rob, accounts for channel, to make discovery reference signal be easier busy channel or at least with hair It send the LBT mechanism channel having the same of generic downlink data to seize probability, and then realizes and reduce terminal measuring reference signals DRS, the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation is carried out, improves accuracy.

In view of this, an aspect of of the present present invention proposes a kind of method of adjustment of channel occupancy probabilities, for having base station The equipment of function, including：According to the data type of the data to be sent of the equipment with base station functions, adjustment is described pending Send the parameter information of the Channel Detection mechanism corresponding to data；According to the parameter information after adjustment, adjustment is described to be sent Data occupy the probability of down channel, wherein the data type of the data to be sent includes：It was found that reference signal and/or under Row data.

In the technical scheme, by being according to data to be sent i.e. data to be sent of the equipment with base station functions It was found that reference signal or downlink data, adjust every ginseng of the corresponding LBT mechanism of data to be sent (i.e. Channel Detection mechanism) Number information so that find that the LBT mechanism corresponding to reference signal and downlink data uses identical or different parameter information, to Realize that the probability for treating transmission data occupancy down channel is adjusted so that the LBT mechanism for sending DRS seizes the ability of channel It is improved, the LBT mechanism of transmission DRS signals is made to be easier to rob compared with the LBT mechanism for sending generic downlink data and account for channel, or At least occupy probability with the LBT mechanism channel having the same for sending generic downlink data, to make discovery reference signal more hold Easy busy channel or at least with generic downlink data channel occupation probability having the same, and then realizes and sends DRS letters in time Number, to reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency are estimated, improve Accuracy, certainly, it can be the LBT based on frame structure to send the LBT mechanism of DRS and send the LBT mechanism of generic downlink data Mechanism can also be the LBT mechanism based on load.In addition, with base station functions equipment include base station, by communication equipment (such as Smart mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that the data to be sent of the equipment with base station functions described in the basis Data type adjusts the parameter information of the Channel Detection mechanism corresponding to the data to be sent, specifically includes：According to the tool There is the data type of the data to be sent of the equipment of base station functions, adjusts following at least one parameter or combinations thereof：It is described pending Send the Channel Detection machine corresponding to the Channel Detection Time granularity of the Channel Detection mechanism corresponding to data, the data to be sent The maximum channel holding time of system, when the equipment with base station functions using based on load Channel Detection mechanism send institute State the letter corresponding to the competition window length of the extended Channel Detection Time used when data to be sent, the data to be sent The signal strength threshold whether idle for judging the down channel that road testing mechanism uses.

In the technical scheme, by adjusting the items in the LBT mechanism found corresponding to reference signal and downlink data Parameter information, the LBT mechanism that can improve transmission DRS seize the ability of channel, it are made relatively to send the LBT machines of generic downlink data System, which is easier to rob, accounts for channel, to make discovery reference signal be easier busy channel, or at least has with generic downlink data Identical channel occupation probability and then reduction terminal measuring reference signals DRS, progress cell identification, down-going synchronous, time-frequency estimation When the power consumption that consumes, improve accuracy.

In the above-mentioned technical solutions, it is preferable that the Channel Detection mechanism includes：First Channel Detection mechanism and the second letter Road testing mechanism, wherein when sending the discovery reference signal, the downlink is detected using the first Channel Detection mechanism Channel detects the down channel when sending the downlink data using the second channel testing mechanism.

In the technical scheme, when sending discovery reference signal and sending downlink data, the first Channel Detection is used respectively Mechanism and second channel testing mechanism detect down channel, and the first Channel Detection mechanism and second channel testing mechanism can phases It is same to can also be different, such as：It can be all based on the LBT mechanism of frame structure (or based on load), but parameter therein differs Sample can also be respectively the LBT mechanism based on frame structure and the LBT mechanism based on load.

In the above-mentioned technical solutions, it is preferable that the inspection of the channel corresponding to the data to be sent is adjusted by following procedure The parameter information of survey mechanism, so that described find that reference signal occupies the probability of the down channel more than or equal to described second Channel Detection mechanism occupies the probability of the down channel：By the first Channel Detection Time grain of the first Channel Detection mechanism Degree is adjusted to the second channel detection time granularity less than or equal to the second channel testing mechanism；And/or by described first The maximum channel holding time of Channel Detection mechanism is adjusted to the maximum channel less than or equal to the second channel testing mechanism Holding time；And/or the first competition window of the extended Channel Detection Time for using the first Channel Detection mechanism is long Degree is adjusted to be less than or equal to the second competition window of the extended Channel Detection Time that the second channel testing mechanism uses Length；And/or first signal whether idle for judging the down channel for using the first Channel Detection mechanism Intensity threshold is adjusted to be used to judge whether the down channel is empty more than or equal to what the second channel testing mechanism used Not busy second signal intensity threshold.

In the technical scheme, reference signal or/or downlink data are found when the equipment with base station functions is sent, passed through The parameters information of the first Channel Detection mechanism and second channel testing mechanism is adjusted in the manner described above, it can be true The ability that the LBT mechanism for sending DRS seizes channel that can effectively improve is protected, it is made relatively to send the LBT machines of generic downlink data System, which is easier to rob, accounts for channel, or at least occupies probability with the LBT mechanism channel having the same for sending generic downlink data, with It reduces terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation, it is accurate to improve Degree.Its detailed process is：The CCA detection times length (i.e. granularity) for the LBT mechanism for sending DRS is adjusted to be less than or equal to hair Send the CCA detection time length of the LBT mechanism of data.Such as：When CCA detection time length is in the LBT mechanism of transmission data When 20us (the detection time length is the minimum detection time granularity of CCA specified in unlicensed spectrum rule), ginseng is sent The CCA detection times length examined in the LBT mechanism of signal DRS can be 10us, or as CCA in the LBT mechanism of transmission data Detection time length is 30us, and it can be 20us to send CCA detection times length in the LBT mechanism of reference signal DRS；

The maximum channel holding time for the LBT mechanism for sending reference signal DRS is adjusted to be less than or equal to transmission data LBT mechanism maximum channel holding time, such as：When maximum channel holding time is 4ms in the LBT mechanism of transmission data, It can be 3ms to send maximum channel holding time in the LBT mechanism of reference signal DRS；

The competition window length (i.e. q values) that the extended Channel Detection Time of the LBT mechanism of reference signal DRS will be sent is adjusted The competition window length (i.e. q values) of the whole extended Channel Detection Time for the LBT mechanism less than transmission data, so that working as When LBT mechanism is based on LBE, random number N takes the probability of smaller value high, such as：Send q values in the LBT mechanism of reference signal DRS When taking 4, the q values in the LBT mechanism of transmission data can take 16 to 32, send so random in the LBT mechanism of reference signal DRS When number N takes from 1~q, value is smaller, it is meant that when less a CCA detection times detect channel idle, can send DRS；

The CCA Channel Detections thresholding (signal strength threshold) for the LBT mechanism for sending reference signal DRS is adjusted to be more than or Equal to the CCA Channel Detections thresholding (signal strength threshold) that transmission data LBT mechanism uses, i.e., when sending DRS, as long as channel Interference is not too big, is judged as the channel downstream free time and can send DRS, and when sending downlink data, only in channel disturbance When very little, it could judge the channel downstream free time, downlink data could be sent.Certainly, if in order to make transmission generic downlink data LBT mechanism is easier to rob compared with the LBT mechanism for sending DRS accounts for channel, then can be according to antipodal with above-mentioned control mode Mode adjusts the LBT mechanism for sending generic downlink data and sends the parameters information in the LBT mechanism of DRS.

In the above-mentioned technical solutions, it is preferable that further include：It is the first hair of discovery reference signal setting in the frame structure Send the period；It is that at least one second sending cycle is arranged in the discovery reference signal in first sending cycle；At least Same position in each of one second sending cycle second sending cycle is respectively provided with a transmission window, and Setting is for continuously detecting the down channel in the transmission window in each second sending cycle successively in order At least one Channel Detection Time of no free time, it is whether idle for detecting the down channel.

In the technical scheme, by sending week in the frame structure to find that reference signal is arranged one larger first Phase, and at least one the second smaller sending cycle is set in the first sending cycle, and in each second sending cycle Same position is respectively provided with a transmission window, convenient for being arranged whether can continuously detect down channel empty in each transmissions window It is arranged on not busy at least one Channel Detection Time and each Channel Detection Time at least one Channel Detection Time CCA, so as to use CCA detection down channels whether idle in each Channel Detection Time, to send during idle time DRS signals.

In the above-mentioned technical solutions, it is preferable that first sending cycle is more than the first default sending cycle, wherein institute It states when the cell in the serving cell where the first default sending cycle is equal to the equipment with base station functions is closed and sends out The minimum period value for finding reference signal is sent, and first sending cycle is equal to when the cell is closed described in transmission It was found that other periodic quantities in addition to the minimum period value used when reference signal；Second sending cycle is less than second Default sending cycle, wherein the second default sending cycle is equal to the maximum cycle value that measurement interval occurs in different-frequency measure, Second sending cycle is equal to other weeks that the measurement interval in different-frequency measure in addition to the maximum cycle value occurs Time value, and the length for sending window is equal to the length of measurement interval described in different-frequency measure.

In the technical scheme, when being closed by making the first sending cycle be equal to cell, when sending discovery reference signal Other periodic quantities (such as 80ms, 160ms) in addition to minimum period value (such as 40ms) used, and the first sending cycle is made to be more than First default sending cycle, it can be ensured that the first sending cycle is larger value in tradition DRS sending cycles, such as 160ms, separately Outside, by make the second sending cycle be equal to different-frequency measure in except maximum cycle value (such as 80ms) in addition to measurement interval appearance its His periodic quantity, and the second sending cycle is made to be less than the second default sending cycle, it can be ensured that the second sending cycle is different-frequency measure Smaller value (such as 40ms) in the period that middle measurement interval occurs, it is whether empty convenient for more frequently detection down channel in this way Spare time, when detecting the free time, DRS can be sent in time, it is also possible to the accuracy of channel measurement is improved, and The ability for further increasing DRS busy channels because down channel detects infrequently when preventing from sending DRS, and causes to miss hair Send the opportunity of DRS.

In the above-mentioned technical solutions, it is preferable that further include：Any in the transmission window in any second sending cycle The residue of the down channel free time and any second sending cycle sent in window is detected in Channel Detection Time Time is greater than or equal to the maximum channel holding time of the first Channel Detection mechanism and/or the first Channel Detection mechanism Maximum channel holding time and when the sum of terminal receiver frequency handover time, in the transmission of any second sending cycle The discovery reference signal is sent in the remaining time of window, wherein any second sending cycle is first transmission Any second sending cycle in period.

In the technical scheme, when the CCA in any Channel Detection Time detects down channel free time, and transmission window In remaining time be greater than or equal to the first Channel Detection mechanism maximum channel holding time and/or the first Channel Detection mechanism Maximum channel holding time and when the sum of terminal receiver frequency handover time, illustrate that the remaining time sent in window is enough A DRS signal is completely sent, then can send one within the remaining time of the transmission window of any second sending cycle It was found that reference signal, conversely, when the CCA in any Channel Detection Time detects the down channel free time, but send in window Remaining time is less than the maximum channel holding time of the first Channel Detection mechanism and/or the maximum channel of the first Channel Detection mechanism When the sum of holding time and terminal receiver frequency handover time, illustrate that the remaining time sent in window is insufficient to completely send out A DRS signal is sent, then is not sent within the remaining time of the transmission window of any second sending cycle and finds reference signal.

In the above-mentioned technical solutions, it is preferable that further include：In the transmission window of any second sending cycle extremely When the down channel free time is still not detected in a few Channel Detection Time, and in the case where meeting the following conditions, stop Other Channel Detection Times are only set in the transmission window of any second sending cycle, and are sent out with described any second It send in the transmission window of other adjacent the second sending cycles of period and at least one Channel Detection Time is set：Described first sends At least one second sending cycle, and the remaining time of any second sending cycle sent in window are provided in period Less than the maximum channel holding time of the first Channel Detection mechanism；And/or it is provided at least in first sending cycle One the second sending cycle, and the remaining time of any second sending cycle sent in window is less than first channel The sum of the maximum channel holding time of testing mechanism and terminal receiver frequency handover time.

In the technical scheme, when at least one of the transmission window of any second sending cycle Channel Detection Time When the down channel free time is inside still not detected, if the remaining time of any second sending cycle sent in window is less than the first letter The maximum channel holding time of road testing mechanism and/or the maximum channel holding time of the first Channel Detection mechanism are received with terminal The sum of machine frequency handover time can then not have to that the inspection of other channels is arranged in the transmission window of any second sending cycle Survey the time, i.e., it goes without doing, and CCA has detected, because even subsequent CCA detects channel idle in other Channel Detection Times, Complete DRS can not be sent, and can be in order successively in other second hairs adjacent with any second sending cycle It send in the transmission window in period and at least one Channel Detection Time is set, to be used at least one Channel Detection Time Whether CCA detects down channel idle.

In the above-mentioned technical solutions, it is preferable that further include：When in the transmission window in any second sending cycle When having sent the discovery reference signal, the down channel is discharged in the remaining time in first sending cycle, is stopped The discovery reference signal is only sent, and when being provided at least one second sending cycle in first sending cycle, is stopped Only it is arranged in the transmission window of other remaining the second sending cycles in the remaining time in first sending cycle and is used for Detect whether the down channel is idle, for sending the Channel Detection Time for finding reference signal.

In the technical scheme, when having sent discovery reference signal in the transmission window in any second sending cycle When, then down channel can be discharged within the remaining time in the first sending cycle, not retransmit discovery reference signal, and stopped Only for detecting, whether down channel is idle to find ginseng to send for setting in the transmission window of other remaining the second sending cycles The Channel Detection Time of signal is examined, in this manner it is ensured that in the first sending cycle, a DRS is at most sent, avoids DRS signals Transmission is excessively frequent, and occupancy downstream channel time is long and influences the normal transmission of downlink data.

In the above-mentioned technical solutions, it is preferable that further include：When any Channel Detection Time in any second sending cycle When inside detecting the down channel free time, judge whether any Channel Detection Time is any second sending cycle Send window in n-th Channel Detection Time before Channel Detection Time；When the determination result is yes, it does not send described It was found that otherwise reference signal, the discovery reference signal is sent for the terminal reserved terminal receiver frequency handover time, wherein The terminal receiver frequency handover time includes：(N-1) the sum of the time of a Channel Detection Time, wherein N is just whole Number, any second sending cycle are any second sending cycle in first sending cycle.

In the technical scheme, when detecting down channel in any Channel Detection Time in any second sending cycle When idle, if any Channel Detection Time is the n-th Channel Detection of any second sending cycle sent in window Between before Channel Detection Time, then discovery reference signal is not sent, in this way, convenient for will be before n-th Channel Detection Time Channel Detection Time keeps for terminal using as the terminal receiver frequency handover time；Certainly, if any Channel Detection Time It is the Channel Detection Time after n-th Channel Detection Time or n-th Channel Detection Time, it can be said that bright has been terminal The reserved terminal receiver frequency handover time, then discovery reference signal can be sent immediately.

In the above-mentioned technical solutions, it is preferable that when any channel inspection in the transmission window in any second sending cycle When surveying whether the detection down channel idle in the time, if any second sending cycle transmission window domestic demand simultaneously The discovery reference signal and the downlink data are sent, then the Channel Detection machine corresponding to the adjustment data to be sent The process of the parameter information of system specifically includes：The first Channel Detection Time granularity is adjusted to be less than or equal to described second Channel Detection Time granularity；And/or the maximum channel holding time of the first Channel Detection mechanism is adjusted to be less than or be waited In the maximum channel holding time of the second channel testing mechanism；And/or the first competition window number is adjusted to small In or equal to the second competition window number；And/or first signal strength threshold is adjusted to be greater than or equal to described Second signal intensity threshold；Or the process of the parameter information of the Channel Detection mechanism corresponding to the adjustment data to be sent Further include specifically：The second channel detection time granularity is adjusted to be greater than or equal to the first Channel Detection Time grain Degree；And/or the maximum channel holding time of the second channel testing mechanism is adjusted to be greater than or equal to first channel The maximum channel holding time of testing mechanism；And/or the second competition window number is adjusted to be greater than or equal to described the One competition window number；And/or the second signal intensity threshold is adjusted to be less than or equal to the first signal strength threshold Value.

In the technical scheme, it is examined when in any Channel Detection Time in the transmission window in any second sending cycle When whether survey down channel is idle, if desired sends discovery reference simultaneously in the transmission window of any second sending cycle and believe Number and downlink data, then the parameter information of the first Channel Detection mechanism or second channel testing mechanism can be adjusted, be made First Channel Detection mechanism and second channel testing mechanism all use the parameter information or the first channel of second channel testing mechanism Testing mechanism and second channel testing mechanism all use the parameter information of the first Channel Detection mechanism, so that the first channel is examined Survey mechanism with second channel testing mechanism there is equal down channel to seize probability, so that the first Channel Detection mechanism and second Channel Detection mechanism fair competition down channel；It is, of course, also possible to by the first Channel Detection mechanism and second channel testing mechanism It is adjusted to use respective parameter information respectively, so that the LBT mechanism for sending DRS has the higher ability for seizing channel, Its LBT mechanism for relatively sending generic downlink data is set to be easier to rob and account for channel, to make discovery reference signal be easier to occupy Channel, and then reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation, Improve accuracy.

In the above-mentioned technical solutions, it is preferable that under the method for adjustment is suitable in the unauthorized frequency range in LTE system Row channel；And the Channel Detection mechanism includes listem-before-talk mechanism.

Another aspect of the present invention proposes a kind of adjustment system of channel occupancy probabilities, including：The first adjustment unit, root According to the data type of the data to be sent of the equipment with base station functions, the channel corresponding to the data to be sent is adjusted The parameter information of testing mechanism；Second adjustment unit adjusts the data to be sent and accounts for according to the parameter information after adjustment With the probability of down channel, wherein the data type of the data to be sent includes：It was found that reference signal and/or downlink data.

In the technical scheme, by being according to data to be sent i.e. data to be sent of the equipment with base station functions It was found that reference signal or downlink data, adjust the parameter letter of the corresponding LBT mechanism of data to be sent (i.e. Channel Detection mechanism) Breath so that find that the LBT mechanism corresponding to reference signal and downlink data uses identical or different parameters information, to Realize that the probability for treating transmission data occupancy down channel is adjusted so that the LBT mechanism for sending DRS seizes the ability of channel It is improved, the LBT mechanism of transmission DRS signals is made to be easier to rob compared with the LBT mechanism for sending generic downlink data and account for channel, or Probability at least is seized with the LBT mechanism channel having the same for sending generic downlink data, to make discovery reference signal more hold Easy busy channel, or at least with generic downlink data channel occupation probability having the same, and then realize in time send DRS letter Number, to reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency are estimated, improve Accuracy, certainly, it can be the LBT based on frame structure to send the LBT mechanism of DRS and send the LBT mechanism of generic downlink data Mechanism can also be the LBT mechanism based on load.In addition, with base station functions equipment include base station, by communication equipment (such as Smart mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that the first adjustment unit is specifically used for：There are base station functions according to described Equipment data to be sent data type, adjust following at least one parameter or combinations thereof：The data institute to be sent is right The maximum letter of Channel Detection mechanism corresponding to the Channel Detection Time granularity for the Channel Detection mechanism answered, the data to be sent Road holding time sends the number to be sent when the equipment with base station functions using the Channel Detection mechanism based on load According to when the competition window length of extended Channel Detection Time, the Channel Detection mechanism corresponding to the data to be sent that use The signal strength threshold whether idle for judging the down channel used.

In the technical scheme, by adjusting the items in the LBT mechanism found corresponding to reference signal and downlink data Parameter information, the LBT mechanism that can improve transmission DRS seize the ability of channel, it are made relatively to send the LBT machines of generic downlink data System, which is easier to rob, accounts for channel, to make discovery reference signal be easier busy channel, or at least has with generic downlink data Identical channel occupation probability, and then reduce terminal measuring reference signals DRS, carry out cell identification, down-going synchronous, time-frequency estimation When the power consumption that consumes, improve accuracy.

In the above-mentioned technical solutions, it is preferable that the first adjustment unit is specifically additionally operable to：Institute is adjusted by following procedure The parameter information of the Channel Detection mechanism corresponding to data to be sent is stated, so that the discovery reference signal occupies the downlink letter The probability in road is greater than or equal to the probability that the second channel testing mechanism occupies the down channel：First channel is examined First Channel Detection Time granularity of survey mechanism is adjusted to examine less than or equal to the second channel of the second channel testing mechanism Survey time granularity；And/or the maximum channel holding time of the first Channel Detection mechanism is adjusted to be less than or equal to described The maximum channel holding time of second channel testing mechanism；And/or the extended letter for using the first Channel Detection mechanism First competition window length adjustment of road detection time is extended to be used less than or equal to the second channel testing mechanism Second competition window length of Channel Detection Time；And/or the first Channel Detection mechanism is used described for judging Whether the first idle signal strength threshold is adjusted to be greater than or equal to what the second channel testing mechanism used down channel The second signal intensity threshold whether idle for judging the down channel.

In the technical scheme, reference signal or/or downlink data are found when the equipment with base station functions is sent, passed through The parameters information of the first Channel Detection mechanism and second channel testing mechanism is adjusted in the manner described above, it can be true The ability that the LBT mechanism for sending DRS seizes channel that can effectively improve is protected, it is made relatively to send the LBT machines of generic downlink data System, which is easier to rob, accounts for channel, or at least seizes probability with the LBT mechanism channel having the same for sending generic downlink data, with It reduces terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation, it is accurate to improve Degree.Its detailed process is：The CCA detection times length (i.e. granularity) for the LBT mechanism for sending DRS is adjusted to be less than or equal to hair Send the CCA detection time length of the LBT mechanism of data.Such as：When CCA detection time length is in the LBT mechanism of transmission data When 20us (the detection time length is the minimum detection time granularity of CCA specified in unlicensed spectrum rule), ginseng is sent The CCA detection times length examined in the LBT mechanism of signal DRS can be 10us, or as CCA in the LBT mechanism of transmission data Detection time length is 30us, and it can be 20us to send CCA detection times length in the LBT mechanism of reference signal DRS；

In the above-mentioned technical solutions, it is preferable that further include：First setting unit refers to for the discovery in the frame structure The first sending cycle is arranged in signal；Second setting unit is the discovery reference signal setting in first sending cycle At least one second sending cycle；Third setting unit, in each of at least one described second sending cycle described second Same position in sending cycle is respectively provided with a transmission window, and in order successively in each second sending cycle At least one Channel Detection Time that whether setting is idle for continuously detecting the down channel in window is sent, for detecting Whether the down channel is idle.

In the above-mentioned technical solutions, it is preferable that further include：First transmission unit, when the hair in any second sending cycle Send the hair that the down channel free time and any second sending cycle are detected in any Channel Detection Time in window Send the maximum channel holding time and/or described that remaining time in window is greater than or equal to the first Channel Detection mechanism When the sum of the maximum channel holding time of one Channel Detection mechanism and terminal receiver frequency handover time, described any second The discovery reference signal is sent in the remaining time of the transmission window of sending cycle, wherein any second sending cycle For any second sending cycle in first sending cycle.

In the above-mentioned technical solutions, it is preferable that further include：First processing units, in any second sending cycle When the down channel free time is still not detected at least one of transmission window Channel Detection Time, and meeting following item In the case of part, stop in the transmission window of any second sending cycle and other Channel Detection Times be set, and with When at least one Channel Detection is set in the transmission window of other adjacent second sending cycles of any second sending cycle Between：At least one second sending cycle, and the transmission of any second sending cycle are provided in first sending cycle Remaining time in window is less than the maximum channel holding time of the first Channel Detection mechanism；And/or first transmission At least one second sending cycle, and the remaining time of any second sending cycle sent in window are provided in period Less than the sum of the maximum channel holding time of the first Channel Detection mechanism and terminal receiver frequency handover time.

In the above-mentioned technical solutions, it is preferable that further include：Second processing unit, when in any second sending cycle In transmission window in when having sent the discovery reference signal, discharge institute in the remaining time in first sending cycle Down channel is stated, stops sending the discovery reference signal, and work as in first sending cycle and be provided at least one second When sending cycle, the transmission window of other remaining the second sending cycles in the remaining time in first sending cycle is stopped at It is arranged in mouthful for detecting whether the down channel is idle, for sending the Channel Detection Time for finding reference signal.

In the above-mentioned technical solutions, it is preferable that further include：Judging unit, when any letter in any second sending cycle When detecting the down channel free time in road detection time, judge whether any Channel Detection Time is described any Channel Detection Time before the n-th Channel Detection Time of two sending cycles sent in window；Second transmission unit is being sentenced Disconnected result is when being, not send the discovery reference signal, and the terminal receiver frequency handover time is reserved for terminal, otherwise, hair Send the discovery reference signal, wherein the terminal receiver frequency handover time includes：(N-1) when a Channel Detection Between the sum of time, wherein N is positive integer, and any second sending cycle is any the in first sending cycle Two sending cycles.

In the above-mentioned technical solutions, it is preferable that the first adjustment unit is additionally operable to：When in any second sending cycle When whether the detection down channel is idle in any Channel Detection Time in transmission window, if being sent described any second The transmission window domestic demand in period sends the discovery reference signal and the downlink data simultaneously, when by first Channel Detection Between granularity be adjusted to be less than or equal to the second channel detection time granularity；And/or by the first Channel Detection mechanism Maximum channel holding time is adjusted to the maximum channel holding time less than or equal to the second channel testing mechanism；And/or The first competition window number is adjusted to be less than or equal to the second competition window number；And/or described first is believed Number intensity threshold is adjusted to be greater than or equal to the second signal intensity threshold；Or the first adjustment unit is additionally operable to：By institute Second channel detection time granularity is stated to be adjusted to be greater than or equal to the first Channel Detection Time granularity；And/or by described The maximum channel holding time of two Channel Detection mechanism is adjusted to the maximum letter more than or equal to the first Channel Detection mechanism Road holding time；And/or the second competition window number is adjusted to be greater than or equal to the first competition window number； And/or the second signal intensity threshold is adjusted to be less than or equal to first signal strength threshold.

In the above-mentioned technical solutions, it is preferable that under the adjustment system is suitable in the unauthorized frequency range in LTE system Row channel；And the Channel Detection mechanism includes listem-before-talk mechanism.

Another aspect of the present invention proposes a kind of equipment for having base station functions, including：Such as above-mentioned technical proposal Any one of described in channel occupancy probabilities adjustment system.

In the technical scheme, by the way that the adjustment system of channel occupancy probabilities is arranged in the equipment with base station functions, It can make the LBT mechanism of transmission DRS that there is the higher ability for seizing channel, it is made relatively to send the LBT machines of generic downlink data System, which is easier to rob, to be accounted for channel or at least seizes probability with the LBT mechanism channel having the same for sending generic downlink data, with It reduces terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation, it is accurate to improve Degree.

Technical solution through the invention, the LBT mechanism that can improve transmission DRS seize the ability of channel, its are made relatively to send out The LBT mechanism of generic downlink data is sent to be easier to rob and account for channel or at least have with the LBT mechanism for sending generic downlink data Identical channel seizes probability, and DRS is sent in time to realize, to reduce terminal measuring reference signals DRS, carry out cell knowledge Not, the power consumption consumed when down-going synchronous, time-frequency estimation, improves accuracy.

Description of the drawings

Fig. 1 shows the schematic diagram of two kinds of working methods of unlicensed spectrum；

Fig. 2 shows the schematic diagrames that the interference of Wi-Fi systems avoids rule；

Fig. 3 shows the structural schematic diagram of the frame structure based on FBE in the related technology；

Fig. 4 shows the structural schematic diagram of the LBT frame structures based on LBE in the related technology；

Fig. 5 shows the flow diagram of the method for adjustment of channel occupancy probabilities according to an embodiment of the invention；

Fig. 6 shows the structural schematic diagram of the adjustment system of channel occupancy probabilities according to an embodiment of the invention；

Fig. 7 shows the structural schematic diagram of the equipment according to an embodiment of the invention with base station functions；

Fig. 8 shows the setting position of the transmission window in the first Channel Detection mechanism according to an embodiment of the invention The structural schematic diagram set；

Fig. 9 shows the schematic diagram according to an embodiment of the invention for sending and finding reference signal.

Specific implementation mode

It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention Mode is applied 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.

Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Fig. 5 shows the flow diagram of the method for adjustment of channel occupancy probabilities according to an embodiment of the invention.

As shown in figure 5, show the method for adjustment of the channel occupancy probabilities of one embodiment of the present of invention, including：Step 502, according to the data type of the data to be sent of the equipment with base station functions, adjust corresponding to the data to be sent Channel Detection mechanism parameter information；Step 504, according to the parameter information after adjustment, the data to be sent are adjusted Occupy the probability of down channel, wherein the data type of the data to be sent includes：It was found that reference signal and/or lower line number According to.

In the technical scheme, by being according to data to be sent i.e. data to be sent of the equipment with base station functions It was found that reference signal or downlink data, adjust every ginseng of the corresponding LBT mechanism of data to be sent (i.e. Channel Detection mechanism) Number information so that find that the LBT mechanism corresponding to reference signal and downlink data uses identical or different parameter information, to Realize that the probability for treating transmission data occupancy down channel is adjusted so that the LBT mechanism for sending DRS seizes the ability of channel It is improved, the LBT mechanism of transmission DRS signals is made to be easier to rob compared with the LBT mechanism for sending generic downlink data and account for channel, or Probability at least is seized with the LBT mechanism channel having the same for sending generic downlink data, to make discovery reference signal more hold Easy busy channel or at least with generic downlink data channel occupation probability having the same, and then realizes and sends DRS letters in time Number, to reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency are estimated, improve Accuracy, certainly, it can be the LBT based on frame structure to send the LBT mechanism of DRS and send the LBT mechanism of generic downlink data Mechanism can also be the LBT mechanism based on load.In addition, with base station functions equipment include base station, by communication equipment (such as Smart mobile phone etc.) microcell base station etc. realized.

Fig. 6 shows the structural schematic diagram of the adjustment system of channel occupancy probabilities according to an embodiment of the invention.

As shown in fig. 6, show the adjustment system 600 of the channel occupancy probabilities of one embodiment of the present of invention, including：The One adjustment unit 602, according to the data type of the data to be sent of the equipment with base station functions, adjustment is described to be sent The parameter information of Channel Detection mechanism corresponding to data；Second adjustment unit 604, according to the parameter information after adjustment, Adjust the probability that the data to be sent occupy down channel, wherein the data type of the data to be sent includes：It was found that ginseng Examine signal and/or downlink data.

In the technical scheme, by being according to data to be sent i.e. data to be sent of the equipment with base station functions It was found that reference signal or downlink data, adjust the parameter letter of the corresponding LBT mechanism of data to be sent (i.e. Channel Detection mechanism) Breath so that find that the LBT mechanism corresponding to reference signal and downlink data uses identical or different parameters information, to Realize that the probability for treating transmission data occupancy down channel is adjusted so that the LBT mechanism for sending DRS seizes the ability of channel It is improved, the LBT mechanism of transmission DRS signals is made to be easier to rob compared with the LBT mechanism for sending generic downlink data and account for channel, or At least occupy probability with the LBT mechanism channel having the same for sending generic downlink data, to make discovery reference signal more hold Easy busy channel or at least with generic downlink data channel occupation probability having the same, and then realizes and sends DRS letters in time Number, to reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency are estimated, improve Accuracy, certainly, it can be the LBT based on frame structure to send the LBT mechanism of DRS and send the LBT mechanism of generic downlink data Mechanism can also be the LBT mechanism based on load.In addition, with base station functions equipment include base station, by communication equipment (such as Smart mobile phone etc.) microcell base station etc. realized.

In the above-mentioned technical solutions, it is preferable that the first adjustment unit 602 is specifically used for：There is base station according to described The data type of the data to be sent of the equipment of function adjusts following at least one parameter or combinations thereof：The data to be sent Channel Detection mechanism corresponding to the Channel Detection Time granularity of corresponding Channel Detection mechanism, the data to be sent is most Big Channel holding time, when the equipment with base station functions it is described pending using the Channel Detection mechanism transmission based on load Send the Channel Detection corresponding to the competition window length of the extended Channel Detection Time used when data, the data to be sent The signal strength threshold whether idle for judging the down channel that mechanism uses.

In the technical scheme, by adjusting the items in the LBT mechanism found corresponding to reference signal and downlink data Parameter information, the LBT mechanism that can improve transmission DRS seize the ability of channel, it are made relatively to send the LBT machines of generic downlink data System, which is easier to rob, accounts for channel, or at least makes discovery reference signal with generic downlink data channel occupation probability having the same More easily busy channel, and then reduce terminal measuring reference signals DRS, disappear when cell identification, down-going synchronous, time-frequency estimation The power consumption of consumption improves accuracy.

In the above-mentioned technical solutions, it is preferable that the first adjustment unit 602 is specifically additionally operable to：Pass through following procedure tune The parameter information of Channel Detection mechanism corresponding to the whole data to be sent, so that under discovery reference signal occupancy is described The probability of row channel is greater than or equal to the probability that the second channel testing mechanism occupies the down channel：Described first is believed First Channel Detection Time granularity of road testing mechanism is adjusted to the second letter less than or equal to the second channel testing mechanism Road detection time granularity；And/or the maximum channel holding time of the first Channel Detection mechanism is adjusted to be less than or equal to The maximum channel holding time of the second channel testing mechanism；And/or the extension for using the first Channel Detection mechanism Channel Detection Time the first competition window length adjustment be prolong less than or equal to what the second channel testing mechanism used Second competition window length of long Channel Detection Time；And/or it is used to judge by what the first Channel Detection mechanism used Whether the first idle signal strength threshold is adjusted to make more than or equal to the second channel testing mechanism down channel The second signal intensity threshold whether idle for judging the down channel.

In the above-mentioned technical solutions, it is preferable that further include：First setting unit 606 is joined for the discovery in the frame structure It examines signal and the first sending cycle is set；Second setting unit 608 is the discovery reference signal in first sending cycle At least one second sending cycle is set；Third setting unit 610, each institute at least one second sending cycle It states the same position in the second sending cycle and is respectively provided with a transmission window, and send week each described second successively in order The setting at least one Channel Detection Time whether idle for continuously detecting the down channel, is used in interim transmission window In detecting, whether the down channel is idle.

In the above-mentioned technical solutions, it is preferable that further include：First transmission unit 612, when in any second sending cycle It sends and detects that the down channel is idle in any Channel Detection Time in window and any second sending cycle Sending the remaining time in window is greater than or equal to the maximum channel holding time of the first Channel Detection mechanism and/or described When the sum of the maximum channel holding time of the first Channel Detection mechanism and terminal receiver frequency handover time, described any The discovery reference signal is sent in the remaining time of the transmission window of two sending cycles, wherein described any second sends week Phase is any second sending cycle in first sending cycle.

In the above-mentioned technical solutions, it is preferable that further include：First processing units 614, in any second sending cycle At least one of transmission window Channel Detection Time in when the down channel free time is still not detected, and it is following meeting In the case of condition, stops in the transmission window of any second sending cycle and other Channel Detection Times are set, and At least one Channel Detection is set in the transmission window of other the second sending cycles adjacent with any second sending cycle Time：At least one second sending cycle, and the hair of any second sending cycle are provided in first sending cycle Send the maximum channel holding time that the remaining time in window is less than the first Channel Detection mechanism；And/or first hair It send and is provided at least one second sending cycle in the period, and when the residue of any second sending cycle sent in window Between be less than maximum channel holding time and the sum of terminal receiver frequency handover time of the first Channel Detection mechanism.

In the above-mentioned technical solutions, it is preferable that further include：Second processing unit 616, it is all when being sent described any second When having sent the discovery reference signal in interim transmission window, discharged in the remaining time in first sending cycle The down channel, stops sending the discovery reference signal, and when being provided at least one the in first sending cycle When two sending cycles, the transmission of other remaining the second sending cycles in the remaining time in first sending cycle is stopped at It is arranged in window for detecting whether the down channel is idle, when for sending the Channel Detection for finding reference signal Between.

In the above-mentioned technical solutions, it is preferable that further include：Judging unit 618, when any in any second sending cycle When detecting the down channel free time in Channel Detection Time, judge whether any Channel Detection Time is described any Channel Detection Time before the n-th Channel Detection Time of second sending cycle sent in window；Second transmission unit 620, when the determination result is yes, the discovery reference signal is not sent, the terminal receiver frequency handover time is reserved for terminal, Otherwise, the discovery reference signal is sent, wherein the terminal receiver frequency handover time includes：(N-1) a channel The sum of time of detection time, wherein N is positive integer, and any second sending cycle is in first sending cycle Any second sending cycle.

In the above-mentioned technical solutions, it is preferable that the first adjustment unit 602 is additionally operable to：It is all when being sent any second When whether the detection down channel is idle in any Channel Detection Time of phase sent in window, if described any second The transmission window domestic demand of sending cycle sends the discovery reference signal and the downlink data simultaneously, and first channel is examined Time granularity is surveyed to be adjusted to be less than or equal to the second channel detection time granularity；And/or by the first Channel Detection machine The maximum channel holding time of system is adjusted to the maximum channel holding time less than or equal to the second channel testing mechanism； And/or the first competition window number is adjusted to be less than or equal to the second competition window number；And/or by described One signal strength threshold is adjusted to be greater than or equal to the second signal intensity threshold；Or the first adjustment unit 602 is also used In：The second channel detection time granularity is adjusted to be greater than or equal to the first Channel Detection Time granularity；And/or it will The maximum channel holding time of the second channel testing mechanism is adjusted to more than or equal to the first Channel Detection mechanism Maximum channel holding time；And/or the second competition window number is adjusted to be greater than or equal to first competition window Number；And/or the second signal intensity threshold is adjusted to be less than or equal to first signal strength threshold.

In the technical scheme, it is examined when in any Channel Detection Time in the transmission window in any second sending cycle When whether survey down channel is idle, if desired sends discovery reference simultaneously in the transmission window of any second sending cycle and believe Number and downlink data, then the parameter information of the first Channel Detection mechanism or second channel testing mechanism can be adjusted, be made First Channel Detection mechanism and second channel testing mechanism all use the parameter information or the first channel of second channel testing mechanism Testing mechanism and second channel testing mechanism all use the parameter information of the first Channel Detection mechanism, so that the first channel is examined Survey mechanism with second channel testing mechanism there is equal down channel to seize probability, so that the first Channel Detection mechanism and second Channel Detection mechanism fair competition down channel；It is, of course, also possible to by the first Channel Detection mechanism and second channel testing mechanism It is adjusted to use respective parameter information respectively, so that the LBT mechanism for sending DRS has the higher ability for seizing channel, So that its LBT mechanism for relatively sending generic downlink data is easier to rob and is accounted for channel, discovery reference signal made to be easier busy channel, And then reduce terminal measuring reference signals DRS, carry out the power consumption consumed when cell identification, down-going synchronous, time-frequency estimation, it improves accurate Exactness.

Fig. 7 shows the structural schematic diagram of the equipment according to an embodiment of the invention with base station functions.

As shown in fig. 7, show the equipment 700 with base station functions of one embodiment of the present of invention, including：It is such as above-mentioned The adjustment system 600 of channel occupancy probabilities described in any one of technical solution.

In the technical scheme, pass through the adjustment system of the setting channel occupancy probabilities in the equipment 700 with base station functions System 600 can make the LBT mechanism of transmission DRS have the higher ability for seizing channel, it is made relatively to send generic downlink data LBT mechanism, which is easier to rob, to be accounted for channel or at least seizes machine with the LBT mechanism channel having the same for sending generic downlink data Rate is improved with reducing terminal measuring reference signals DRS, carrying out the power consumption consumed when cell identification, down-going synchronous, time-frequency are estimated Accuracy.

Fig. 8 is shown in the listem-before-talk mechanism corresponding to discovery reference signal according to an embodiment of the invention Send the structural schematic diagram of the installation position of window；Fig. 9 shows that transmission according to an embodiment of the invention finds reference The schematic diagram of signal.

Below in conjunction with Fig. 8 and Fig. 9 technical solution that the present invention will be described in detail：

The period of one transmission DRS of setting first in the frame structure of LAA SCell (cell) base station, referred to here as first Period, period 1 need to take value larger in traditional DRS sending cycles, such as 160ms, as shown in Figure 8.

Secondly one minor cycle is set in the period 1, referred to here as second round, which is measurement The periodic quantity of gap (measurement interval), such as 40ms, as shown in Figure 8.

There are one the windows that length is 6ms in every 40ms, and this 6ms occurs using 40ms as the period, this 6ms window Mouth is for transmission DRS.

Here 6ms is actually the length of measurement gap, length just cover traditional PSS, SSS, The length of CRS (5ms) or the transmission length (maximum 5ms) of DRS add the time of receiver frequency handover, but due to by maximum The length of the limitation of Channel holding time, the DRS of LAA SCell cannot be grown as traditional DRS, can not occupy 5ms, here We are known as DRS length, and value may be 2.5ms, 3ms, 4ms etc..That is the DRS that we design only needs to occupy 6ms A part in window is sent.

In addition, in this frame structure since the initial position of 6ms, some small granularities, the granularity are divided the time into (i.e. Channel Detection Time) be for doing CCA detections, in order to be easier to rob and account for channel than the eNB (base station) for thering are data to send, Here CCA detection granularities (i.e. Channel Detection Time) can be set as 10us (can also be 20us).We are with DRS length below (i.e. maximum channel holding time) is 3ms, and Channel Detection Time is that 10us is that example illustrates how to send DRS：

Since 6ms starting points, a CCA detection is done per 10us, as long as a CCA detects the down channel free time, Immediately send DRS.Meanwhile the LBT mechanism for sending DRS here is somewhat like the combination of FBE and LBE, CCA starting points are 40ms Period is the equal of the FBE mechanism periodically occurred, but after first CCA detects channel busy, is waited until unlike FBE The CCA in next 40ms periods starts to detect again, but as LBE mechanism, continue to detect, but the Extended of LBE Random number N value is 1 in CCA (extended Channel Detection Time), then can be with busy channel as long as detecting the 1 secondary channel free time. (here in order to reserve the time of terminal receiver frequency handover, for example 20us is needed, even if then front in same second round There are 2 CCA for detecting channel idle, also do not send first, channel sky is detected until occurring the 3rd in the same second round Not busy CCA just sends DRS)

DRS ends after sending 3ms, and eNB discharges channel.But if any Channel Detection Time in any second round When interior CCA detects channel idle, remaining time of 6ms be discontented with 3ms (or consider frequency handover, reserve 20us when Between, then should be discontented 3ms+20us), then just it goes without doing below, CCA has detected.Because even in any second round Other any Channel Detection Times in CCA detect channel idle, complete DRS can not be sent.

In addition, in 4 second rounds in this period 1, the transmission window of each second round can be attempted to send DRS, but if being successfully transmitted DRS in the transmission window of one second round of front, then the hair in subsequent second round Window is sent just not have to attempt.If front was not successfully transmitted DRS, the transmission window in subsequent second round continues It attempts.As long as that is, ensureing to have sent a DRS in the period 1.

Fig. 9 provides the example that some send DRS, and (the CCA detection times granularity of 10us and the maximum channel of 3ms account in example It is schematic diagram with the time)

In Case 1, the down channel free time is detected in the 5th Channel Detection Time (i.e. the 5th CCA times), and surplus The remaining time is more than 3ms, then sends DRS.So within the remaining time of 160ms, eNB will not because sending DRS and busy channel, Also because DRS is sent need not be set to detect channel idle the CCA times again.

In Case 2, the CCA in the 9th Channel Detection Time detects the down channel free time, and remaining time is more than 3ms then sends DRS.So within the remaining time of 160ms, eNB will not be because DRS be sent and busy channel, also need not be again Because DRS is sent is set to detect channel idle the CCA times.

In Case 3, when the CCA in the 20th Channel Detection Time detects the down channel free time, remaining time is just only Surplus 3ms, then after sending DRS, the window time of 6ms terminates.

In Case 4, when 6ms window times only remain 3ms, at least one of the transmission window of second round channel The down channel free time is still not detected in detection time (i.e. at least one CCA times), then does not just have to the hair in the second round It send and other Channel Detection Times is set in window, also just do not have to have detected using the CCA times, because even detecting that downlink is believed Road is idle, can not send complete DRS.So until the 6ms windows in next 40ms periods start, then sent out The CCA of DRS is sent to detect.

In addition, when eNB is when this few 6ms window also has data transmission, three kinds of solutions：

The listem-before-talk mechanism for finding reference signal and the listem-before-talk mechanism for sending downlink data are sent respectively using each From parameter information；

The listem-before-talk mechanism for finding reference signal and the listem-before-talk mechanism for sending downlink data are sent all using transmission The parameter information of the listem-before-talk mechanism of downlink data.

It sends the listem-before-talk mechanism of downlink data and sends the listem-before-talk mechanism for finding reference signal all using transmission It was found that the parameter information of the listem-before-talk mechanism of reference signal.

Technical scheme of the present invention is described in detail above in association with attached drawing, the LBT mechanism that can improve transmission DRS seizes letter The ability in road makes the LBT mechanism that it relatively sends generic downlink data be easier to rob and account for channel, to make discovery reference signal more It is easy busy channel or at least seizes probability with the LBT mechanism channel having the same for sending generic downlink data, and then realize DRS is sent in time, to be consumed when reducing terminal measuring reference signals DRS, carrying out cell identification, down-going synchronous, time-frequency estimation Power consumption, improve accuracy.

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, any made by repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of method of adjustment of channel occupancy probabilities, for the equipment with base station functions, which is characterized in that including：

According to the data type of the data to be sent of the equipment with base station functions, adjust corresponding to the data to be sent Channel Detection mechanism parameter information；

According to the parameter information after adjustment, the adjustment data to be sent occupy the probability of down channel, wherein described to wait for The data type of transmission data includes：It was found that reference signal and/or downlink data.

2. the method for adjustment of channel occupancy probabilities according to claim 1, which is characterized in that have base described in the basis The data type of the data to be sent of the equipment for function of standing adjusts the ginseng of the Channel Detection mechanism corresponding to the data to be sent Number information, specifically includes：

According to the data type of the data to be sent of the equipment with base station functions, adjust following at least one parameter or its Combination：The Channel Detection Time granularity of Channel Detection mechanism corresponding to the data to be sent, the data institute to be sent are right The maximum channel holding time for the Channel Detection mechanism answered, when the equipment with base station functions use the channel based on load Testing mechanism sends the competition window length, described to be sent of the extended Channel Detection Time used when the data to be sent The signal strength threshold whether idle for judging the down channel that Channel Detection mechanism corresponding to data uses.

3. the method for adjustment of channel occupancy probabilities according to claim 1, which is characterized in that the Channel Detection mechanism packet It includes：First Channel Detection mechanism and second channel testing mechanism, wherein when sending the discovery reference signal, using described First Channel Detection mechanism detects the down channel and uses the second channel detection machine when sending the downlink data System detects the down channel.

4. the method for adjustment of channel occupancy probabilities according to claim 3, which is characterized in that

The parameter information of the Channel Detection mechanism corresponding to the data to be sent is adjusted by following procedure, so that the discovery The probability that reference signal occupies the down channel is greater than or equal to the second channel testing mechanism occupancy down channel Probability：

First Channel Detection Time granularity of the first Channel Detection mechanism is adjusted to be less than or equal to the second channel The second channel detection time granularity of testing mechanism；And/or

The maximum channel holding time of the first Channel Detection mechanism is adjusted to be less than or equal to second channel detection The maximum channel holding time of mechanism；And/or

First competition window length adjustment of the extended Channel Detection Time that the first Channel Detection mechanism is used is small In or equal to the second competition window length of extended Channel Detection Time for using of the second channel testing mechanism；And/or

The first signal strength threshold whether idle for judging the down channel that the first Channel Detection mechanism is used Value is adjusted to be greater than or equal to that the second channel testing mechanism uses whether idle for judging the down channel the Binary signal intensity threshold.

5. the method for adjustment of channel occupancy probabilities according to claim 4, which is characterized in that further include：

It is that the first sending cycle is arranged in the discovery reference signal in the frame structure；

It is that at least one second sending cycle is arranged in the discovery reference signal in first sending cycle；

Same position in each of at least one second sending cycle second sending cycle is respectively provided with one Send window, and in order successively in the transmission window in each second sending cycle setting for described in continuously detecting The whether idle at least one Channel Detection Time of down channel, it is whether idle for detecting the down channel.

6. the method for adjustment of channel occupancy probabilities according to claim 5, which is characterized in that

First sending cycle is more than the first default sending cycle, wherein the first default sending cycle is equal to the tool The minimum period for finding reference signal is sent when having the cell in the serving cell where the equipment of base station functions to close Value, and first sending cycle be equal to that the when of sending the discovery reference signal when cell is closed uses except it is described most Other periodic quantities except Xiao Zhou's time value；

Second sending cycle is less than the second default sending cycle, wherein the second default sending cycle is surveyed equal to alien frequencies In amount measurement interval occur maximum cycle value, second sending cycle be equal to different-frequency measure in except the maximum cycle value it Other periodic quantities that the outer measurement interval occurs, and the length for sending window is equal between measurement described in different-frequency measure Every length.

7. the method for adjustment of channel occupancy probabilities according to claim 5, which is characterized in that further include：

When detecting that the down channel is empty in any Channel Detection Time in the transmission window in any second sending cycle The remaining time of not busy and described any second sending cycle sent in window is greater than or equal to the first Channel Detection mechanism Maximum channel holding time and/or the first Channel Detection mechanism maximum channel holding time and terminal receiver frequency point When the sum of switching time, the discovery is sent within the remaining time of the transmission window of any second sending cycle with reference to letter Number, wherein any second sending cycle is any second sending cycle in first sending cycle.

8. the method for adjustment of channel occupancy probabilities according to claim 7, which is characterized in that further include：

It is still not detected at least one of the transmission window of any second sending cycle Channel Detection Time described When the down channel free time, and in the case where meeting the following conditions, the transmission window of any second sending cycle is stopped at Middle other Channel Detection Times of setting, and in the transmission of other second sending cycles adjacent with any second sending cycle At least one Channel Detection Time is set in window：At least one second sending cycle is provided in first sending cycle, And

The remaining time of any second sending cycle sent in window is less than the maximum of the first Channel Detection mechanism Channel holding time；And/or

At least one second sending cycle, and the transmission of any second sending cycle are provided in first sending cycle The maximum channel holding time that remaining time in window is less than the first Channel Detection mechanism is cut with terminal receiver frequency point Change the sum of time.

9. the method for adjustment of channel occupancy probabilities according to claim 7, which is characterized in that further include：

When having sent the discovery reference signal in the transmission window in any second sending cycle, described first The release down channel in remaining time in sending cycle stops sending the discovery reference signal, and works as described first When being provided at least one second sending cycle in sending cycle, stop in the remaining time in first sending cycle Whether setting is idle for detecting the down channel in the transmission window of other remaining the second sending cycles, described for sending It was found that the Channel Detection Time of reference signal.

10. the method for adjustment of the channel occupancy probabilities according to any one of claim 5 to 9, which is characterized in that also wrap It includes：

When detecting the down channel free time in any Channel Detection Time in any second sending cycle, described in judgement Any Channel Detection Time whether be any second sending cycle send window in n-th Channel Detection Time before Channel Detection Time；

When the determination result is yes, the discovery reference signal is not sent, and the terminal receiver frequency handover time is reserved for terminal, Otherwise, the discovery reference signal is sent, wherein the terminal receiver frequency handover time includes：(N-1) a channel The sum of time of detection time,

Wherein, N is positive integer, and any second sending cycle is any second transmission week in first sending cycle Phase.

11. the method for adjustment of the channel occupancy probabilities according to any one of claim 5 to 9, which is characterized in that

When whether detecting the down channel in any Channel Detection Time in the transmission window in any second sending cycle When idle, if any second sending cycle transmission window domestic demand simultaneously send the discovery reference signal and it is described under Row data, then

The process of the parameter information of Channel Detection mechanism corresponding to the adjustment data to be sent specifically includes：

The first Channel Detection Time granularity is adjusted to be less than or equal to the second channel detection time granularity；And/or

The first competition window number is adjusted to be less than or equal to the second competition window number；And/or

First signal strength threshold is adjusted to be greater than or equal to the second signal intensity threshold；Or

The process of the parameter information of Channel Detection mechanism corresponding to the adjustment data to be sent further includes specifically：

The second channel detection time granularity is adjusted to be greater than or equal to the first Channel Detection Time granularity；And/or

The maximum channel holding time of the second channel testing mechanism is adjusted to be greater than or equal to first Channel Detection The maximum channel holding time of mechanism；And/or

The second competition window number is adjusted to be greater than or equal to the first competition window number；And/or

The second signal intensity threshold is adjusted to be less than or equal to first signal strength threshold.

12. the method for adjustment of channel occupancy probabilities according to any one of claim 1 to 9, which is characterized in that

The method of adjustment is suitable for the down channel in the unauthorized frequency range in LTE system.

13. the adjustment system of a kind of channel occupancy probabilities, for the equipment with base station functions, which is characterized in that including：

The first adjustment unit is waited for according to the data type of the data to be sent of the equipment with base station functions described in adjustment The parameter information of Channel Detection mechanism corresponding to transmission data；

Second adjustment unit, according to the parameter information after adjustment, the adjustment data to be sent occupy the general of down channel Rate, wherein the data type of the data to be sent includes：It was found that reference signal and/or downlink data.

14. the adjustment system of channel occupancy probabilities according to claim 13, which is characterized in that

The first adjustment unit is specifically used for：

15. the adjustment system of channel occupancy probabilities according to claim 13, which is characterized in that the Channel Detection mechanism Including：First Channel Detection mechanism and second channel testing mechanism, wherein when sending the discovery reference signal, use institute The first Channel Detection mechanism detection down channel is stated to detect using the second channel when sending the downlink data Mechanism detects the down channel.

16. the adjustment system of channel occupancy probabilities according to claim 15, which is characterized in that

The first adjustment unit is specifically additionally operable to：

17. the adjustment system of channel occupancy probabilities according to claim 16, which is characterized in that further include：

The first sending cycle is arranged for the discovery reference signal in the frame structure in first setting unit；

Second setting unit is that the discovery reference signal setting at least one second sends week in first sending cycle Phase；

Third setting unit, the identical bits in each of at least one second sending cycle second sending cycle It sets and is respectively provided with a transmission window, and be arranged in the transmission window in each second sending cycle be successively used in order The whether idle at least one Channel Detection Time of the down channel is continuously detected, it is whether empty for detecting the down channel It is not busy.

18. the adjustment system of channel occupancy probabilities according to claim 17, which is characterized in that

19. the adjustment system of channel occupancy probabilities according to claim 17, which is characterized in that further include：

First transmission unit, when detecting institute in any Channel Detection Time in the transmission window in any second sending cycle The remaining time sent in window for stating down channel free time and any second sending cycle is greater than or equal to described first The maximum channel holding time and end of the maximum channel holding time of Channel Detection mechanism and/or the first Channel Detection mechanism When holding the sum of receiver frequency handover time, institute is sent within the remaining time of the transmission window of any second sending cycle State discovery reference signal, wherein any second sending cycle is any second transmission week in first sending cycle Phase.

20. the adjustment system of channel occupancy probabilities according to claim 19, which is characterized in that further include：

First processing units, at least one of the transmission window of any second sending cycle Channel Detection Time still When the down channel free time is not detected, and in the case where meeting the following conditions, stops at described any second and send week Other Channel Detection Times are set in the transmission window of phase, and in other second hairs adjacent with any second sending cycle It send in the transmission window in period and at least one Channel Detection Time is set：

At least one second sending cycle is provided in first sending cycle, and

The remaining time of any second sending cycle sent in window is less than the maximum of the first Channel Detection mechanism The sum of Channel holding time and terminal receiver frequency handover time.

21. the adjustment system of channel occupancy probabilities according to claim 19, which is characterized in that further include：

Second processing unit, when having sent the discovery reference signal in the transmission window in any second sending cycle When, the down channel is discharged in the remaining time in first sending cycle, stops sending the discovery reference signal, And when being provided at least one second sending cycle in first sending cycle, stop in first sending cycle Whether setting is idle for detecting the down channel in the transmission window of other remaining the second sending cycles in remaining time, For sending the Channel Detection Time for finding reference signal.

22. the adjustment system of the channel occupancy probabilities according to any one of claim 17 to 21, which is characterized in that also wrap It includes：

Judging unit, when detecting that the down channel is idle in any Channel Detection Time in any second sending cycle When, judge any Channel Detection Time whether be any second sending cycle send window in n-th channel Channel Detection Time before detection time；

Second transmission unit does not send the discovery reference signal when the determination result is yes, and terminal receiver is reserved for terminal Otherwise the frequency handover time sends the discovery reference signal, wherein the terminal receiver frequency handover time includes： (N-1) the sum of the time of a Channel Detection Time,

23. the adjustment system of the channel occupancy probabilities according to any one of claim 17 to 21, which is characterized in that

The first adjustment unit is additionally operable to：

When whether detecting the down channel in any Channel Detection Time in the transmission window in any second sending cycle When idle, if any second sending cycle transmission window domestic demand simultaneously send the discovery reference signal and it is described under Row data,

The first adjustment unit is additionally operable to：

24. the adjustment system of the channel occupancy probabilities according to any one of claim 13 to 21, which is characterized in that

The adjustment system is suitable for the down channel in the unauthorized frequency range in LTE system.

25. a kind of for the equipment with base station functions, which is characterized in that including：

The adjustment system of channel occupancy probabilities as described in any one of claim 13 to 24.