CN105407489A - Frequency spectrum sharing method and transmission node - Google Patents
Frequency spectrum sharing method and transmission node Download PDFInfo
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- CN105407489A CN105407489A CN201410465622.1A CN201410465622A CN105407489A CN 105407489 A CN105407489 A CN 105407489A CN 201410465622 A CN201410465622 A CN 201410465622A CN 105407489 A CN105407489 A CN 105407489A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
Abstract
The invention discloses a frequency spectrum sharing method and a transmission node. The method comprises the steps in which, the transmission node determines an initial data transmission period and a silence period in a preset period; the transmission node transmits data on a shared frequency spectrum in the data transmission period, and detects resource utilization conditions on the shared frequency spectrum in the silence period; and the data transmission period and the silence period in a next preset period are adjusted based on the detected resource utilization conditions on the shared frequency spectrum. The invention can be used for solving the problem for an LTE system and other systems to coexist on the shared frequency spectrum, and achieves normal operation of the LTE on the shared frequency spectrum.
Description
Technical field
The present invention relates to shared spectrum technology, espespecially a kind of frequency spectrum sharing method and transmission node.
Background technology
Long Term Evolution (LTE) system is deployed in authorize in carrier wave and runs.Along with the quick growth of data service, in the near future, frequency spectrum is authorized can not to bear the data volume increased rapidly.Therefore, in shared frequency spectrum, disposing LTE, share the data traffic of authorizing in carrier wave by shared frequency spectrum, is the important evolution tendency of of LTE development.
Shared frequency spectrum has following features: free/low expense; Requirements for sale is low, and cost is low, and such as individual, enterprise can participate in disposing, and the equipment of equipment vendor can be any; When multiple different system operation is shared in frequency spectrum, or when the different operators operation of same system is shared in frequency spectrum, the mode of some shared resources can be considered, to improve spectrum efficiency; Wireless access technology is many; Wireless access website is many; Application is many, and from related data display, multi-service is mentioned can run in shared frequency spectrum, and such as machine to machine (M2M, MachinetoMachine), automobile are to business such as automobiles (V2V, Vehicletovehicle).
But, for shared frequency spectrum, have multiple system and be also operated on identical frequency spectrum, as systems such as WIFI system, radars (Radar).Therefore, realize LTE work on a shared frequency spectrum, the coexistence problems solving LTE system and other system is vital.Current industry does not also provide the concrete implementation realizing frequency spectrum share.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of frequency spectrum sharing method and transmission node, the coexistence problems of LTE system and other system can be solved.
In order to reach the object of the invention, the invention provides a kind of frequency spectrum sharing method, comprising: initial data transmission period and silence period in transmission node determination Preset Time;
Transmission node carries out transfer of data on a shared frequency spectrum in data transmission period, detects the resource utilization shared on frequency spectrum within the silence period;
According to the resource utilization on the shared frequency spectrum detected, adjust the data transmission period in next Preset Time and silence period.
Describedly determine that data transmission period in Preset Time and silence period comprise:
Detect the transmission node number of described transmission node said system in window W in detection time, and the transmission node number of other system outside described transmission node said system and/or share in window W detection time frequency spectrum resource idle condition;
Described initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of described initial data transmission period T2
min;
Or,
The active situation of the transmission node of the other system outside described transmission node said system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the business demand of the transmission node of described transmission node said system and/or detection time window W;
Described initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of described initial data transmission period T2
min.
Described preset time T 1 is determined based on window W detection time; Or described preset time T 1 passes through transmission node described in signaling by the carrier wave of authorizing on frequency spectrum;
Wherein, described preset time T 1 equals described initial data transmission period T2 and silence period T3 sum.
Described detection time, window W comprised the described silence period; Or described detection time, window W was what pre-set.
Described detection time, window W was the cycle, its cycle size by the carrier wave of authorizing on frequency spectrum by signal deployment or default;
Or described detection time, window W was trigger-type, triggers described transmission node by the carrier wave of authorizing on frequency spectrum and again detect.
Describedly determine that data transmission period in Preset Time and silence period comprise:
The carrier wave on frequency spectrum is authorized to pass through signaling, by described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
min, notify described transmission node.
Describedly determine that data transmission period in Preset Time and silence period comprise:
Described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
minfor the default value pre-set;
Wherein, described preset time T 1 equals described initial data transmission period T2 and silence period T3 sum, and described data transmission period T2 and silence period T3 ratio are 1:1, the minimum value T2 of described initial data transmission period T2
minequal initial data transmission period T2.
Within the described data transmission period T2 time, described transmission node adopts the current mechanism of its said system to carry out transfer of data;
In described data transmission period T2, the transmission node of the other system outside described transmission node said system can not take.
In network coverage, the starting point of the data transmission period T2 of all transmission nodes of described transmission node said system is alignment.
The described resource utilization shared on frequency spectrum that detects within the silence period specifically comprises:
According to pre-setting time granularity T
step, described silence period T3 is divided into some equal portions, each time granularity T
stepthe time span of equal portions just equals time granularity T
step;
Detect each time granularity T
stepthe interior resource utilization shared on frequency spectrum;
When certain time granularity T being detected
stepwhen interior signal energy is lower than predetermined threshold value, mark this time granularity T
stepinterior resource is idle.
When resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If idling-resource has k equal portions and k<N, by the time granularity T of k free time
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is data transmission period T2 and the idling-resource number k and described time granularity T of current preset time T1
stepthe product value sum of product, and,
The silence period of described next preset time T 1 is silence period T3 and the idling-resource number k and described time granularity T of current preset time T1
stepthe difference of product value of product;
Or, if idling-resource has k equal portions and k=N, by the time granularity T of individual to (k-1) free time
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is described time granularity T
step;
Or, if there is no idling-resource, then do not adjust; Or, the data transmission period T2 of described next preset time T 1 is adjusted to the minimum value T2 of the data transmission period T2 of current preset time T1
min; The silence period T3 of described next preset time T 1 is the minimum value T2 of the data transmission period T2 of described preset time T 1 and current preset time T1
minthe difference of difference;
Wherein, described some equal portions are N equal portions.
When resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If be consecutively detected the equal portions resource of p the free time pre-set, then directly enter the data transmission period of described next preset time T 1;
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is m and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
When resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If idling-resource has k equal portions and k>1, by the time granularity T of individual to (k-1) free time
stepadjust to the time T2 of the transfer of data of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is (difference of isodisperse N and the difference of (idling-resource number k-1) and described time granularity T
stepthe product value of product;
Or, if only have the in one's duty resource such as to be idle, then do not adjust;
Or, if there is no idling-resource, be then described time granularity T according to step-length
stepadjust time T2 and the silence period T3 of the transfer of data of described next preset time T 1:
The data transmission period T2 of described next preset time T 1 is current data transmission period and described time granularity T
stepthe difference of difference; The silence period T3 of described next preset time T 1 is current silence period T3 and described time granularity T
stepsum and value; Wherein, the data transmission period T2 of described next preset time T 1 is more than or equal to the minimum value T2 of described initial data transmission period T2
min; If the data transmission period T2 of current preset time T1 equals the minimum value T2 of data transmission period T2
min, then do not adjust.
When resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If be consecutively detected the equal portions resource of p the free time pre-set, then directly enter the data transmission period of next preset time T 1;
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m-1) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is (m+1) and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
Present invention also offers a kind of transmission node, at least comprise determination module, transfer of data and detection module, and adjusting module; Wherein,
Determination module, for determining data transmission period initial in Preset Time and silence period;
Transfer of data and detection module, for carrying out transfer of data on a shared frequency spectrum in data transmission period, detect the resource utilization shared on frequency spectrum within the silence period;
Adjusting module, for according to the resource utilization on the shared frequency spectrum detected, adjusts the data transmission period in next Preset Time and silence period, and the data transmission period after adjustment and silence period are exported to transfer of data and detection module.
Described determination module specifically for:
The transmission node number of described transmission node said system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the transmission node number of other system outside described transmission node said system and/or detection time window W; Or, the active situation of the transmission node of the other system outside described transmission node said system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the business demand of the transmission node of described transmission node said system and/or detection time window W;
Described initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of described initial data transmission period T2
min;
Described determination module specifically for: receive from the carrier wave of authorizing on frequency spectrum, carry described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
minsignaling.
Described determination module specifically for: pre-set described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
min.
Described transfer of data and detection module specifically for:
Within the described data transmission period T2 time, described transmission node adopts the current mechanism of its said system to carry out transfer of data; In described data transmission period T2, the transmission node of the other system outside described transmission node said system can not take;
According to pre-setting time granularity T
step, described silence period T3 is divided into some equal portions; Detect each time granularity T
stepthe interior resource utilization shared on frequency spectrum; When certain time granularity T being detected
stepwhen interior signal energy is lower than predetermined threshold value, mark this time granularity T
stepinterior resource is idle.
In network coverage, the starting point of the data transmission period T2 of all transmission nodes of described transmission node said system is alignment.
Described adjusting module specifically for:
When idling-resource have k equal portions and k<N time, by k idle time granularity T
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is data transmission period T2 and the idling-resource number k and described time granularity T of current preset time T1
stepthe product value sum of product, and,
The silence period of described next preset time T 1 is silence period T3 and the idling-resource number k and described time granularity T of current preset time T1
stepthe difference of product value of product;
When idling-resource have k equal portions and k=N time, by the time granularity T of individual to (k-1) free time
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is described time granularity T
step;
When there is no idling-resource, then do not adjust; Or, the data transmission period T2 of described next preset time T 1 is adjusted to the minimum value T2 of the data transmission period T2 of current preset time T1
min; The silence period T3 of described next preset time T 1 is the minimum value T2 of the data transmission period T2 of described preset time T 1 and current preset time T1
minthe difference of difference;
Wherein, described some equal portions are N equal portions.
Described adjusting module specifically for:
When being consecutively detected p idle equal portions resource, described in the data transmission period directly entering next preset time T 1, the data transmission period T2 of next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is m and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
Described adjusting module specifically for:
When idling-resource have k equal portions and k>1 time, by the time granularity T of individual to (k-1) free time
stepadjust to the time T2 of the transfer of data of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is (difference of isodisperse N and the difference of (idling-resource number k-1) and described time granularity T
stepthe product value of product;
Or, when being idle when only having the in one's duty resource such as, then do not adjust;
Or, when there is no idling-resource, be then described time granularity T according to step-length
stepadjust time T2 and the silence period T3 of the transfer of data of described next preset time T 1:
The data transmission period T2 of described next preset time T 1 is current data transmission period and described time granularity T
stepthe difference of difference; The silence period T3 of described next preset time T 1 is current silence period T3 and described time granularity T
stepsum and value; Wherein, the data transmission period T2 of described next preset time T 1 is more than or equal to the minimum value T2 of described initial data transmission period T2
min; If the data transmission period T2 of current preset time T1 equals the minimum value T2 of data transmission period T2
min, then do not adjust.
Described adjusting module specifically for:
When being consecutively detected the equal portions resource of p the free time pre-set, then directly enter the data transmission period of next preset time T 1;
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m-1) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is (m+1) and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
Compared with prior art, technical scheme comprises initial data transmission period and silence period in transmission node determination Preset Time; Transmission node carries out transfer of data on a shared frequency spectrum in data transmission period, detects the resource utilization shared on frequency spectrum within the silence period; According to the resource utilization on the shared frequency spectrum detected, adjust the data transmission period in next Preset Time and silence period.By the inventive method, solve LTE system and other system coexistence problems on a shared frequency spectrum, achieve LTE normal work on a shared frequency spectrum.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of frequency spectrum sharing method of the present invention;
Fig. 2 is the composition structural representation of transmission node of the present invention;
Fig. 3 is the schematic diagram of the first embodiment of frequency spectrum sharing method of the present invention;
Fig. 4 is the schematic diagram of the second embodiment of frequency spectrum sharing method of the present invention;
Fig. 5 is the schematic diagram of the 3rd embodiment of frequency spectrum sharing method of the present invention;
Fig. 6 is the schematic diagram of quiet period premature termination in the 3rd embodiment of frequency spectrum sharing method of the present invention;
Fig. 7 is the schematic diagram of the 4th embodiment of frequency spectrum sharing method of the present invention;
Fig. 8 is the schematic diagram of quiet period premature termination in the 4th embodiment of frequency spectrum sharing method of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
Fig. 1 is the flow chart of frequency spectrum sharing method of the present invention, as shown in Figure 1, comprising:
Step 100: initial data transmission period and silence period in transmission node determination Preset Time.
In this step, transmission node is use the transmission node in the wherein a kind of transmission system sharing frequency spectrum, and this transmission system can be LTE system.
In this step, suppose that Preset Time is T1, the transmission time of data is T2, and the silence period is T3, T1=T2+T3.Determine that data transmission period T2 initial in preset time T 1 and silence period T3 can adopt following a kind of mode:
First kind of way:
The transmission node number of the first system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the transmission node number of other system and/or detection time window W;
Initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of initial data transmission period T2
min.
Or,
The active situation of the transmission node of other system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the business demand of the transmission node of the first system and/or detection time window W;
Initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of initial data transmission period T2
min.
Wherein, detection time, window W comprised the silence period, or detection time, window W was the time window pre-set.
Wherein, determine data transmission period T2 and silence period T3, and the minimum value T2 of initial data transmission period T2
minspecific implementation, be that those skilled in the art easily realize, and implementation is also a lot, is not limited to a certain.Here give an example, such as determine according to transmission node number, suppose that the first system and other system transmission node number are respectively X and Y, so transmission time T2 can be defined as X/ (X+Y) * T1, and silence period T3 can be defined as Y/ (X+Y) * T1.Wherein, preset time T 1 can be determined based on window W detection time, also can by the transmission node of the carrier wave of authorizing on frequency spectrum (also claiming to authorize carrier wave) by signaling the first system, wherein, and T1=T2+T3.
Wherein, how to detect the known technology belonging to those skilled in the art, the protection range that specific implementation is not intended to limit the present invention, roughly comprises: as can be detected the transmission node number of the first system and/or other system by some the peculiar signals (as synchronizing signal) detecting the first system and/or other system; By carrying out the resource idle condition sharing frequency spectrum in window detection time to the detection of signal energy in detection window, when the signal energy of (or the time span preset) in the unit interval being detected lower than predetermined threshold value, then can think that channel resource is idle.
The second way:
The carrier wave on frequency spectrum is authorized to pass through signaling, by initial data transmission period T2 and silence period T3, and the minimum value T2 of initial data transmission period T2
min, the transmission node of notice the first system.This point it is emphasized that, by authorizing the signaling of the carrier wave on frequency spectrum to notify, existing signaling can be utilized also can be the new signaling defined, its protection range be not intended to limit the present invention.
The third mode:
Initial data transmission period T2 and silence period T3, and the minimum value T2 of initial data transmission period T2
minfor the default value pre-set, such as T2:T3=1:1, the minimum value T2 of initial data transmission period T2
minequal initial data transmission period T2.
In this step, detection time, window W can be the cycle, and its cycle size by signal deployment, also can be default by the carrier wave of authorizing on frequency spectrum;
Or detection time, window W was trigger-type, the transmission node being triggered the first system by the carrier wave of authorizing on frequency spectrum detects again; Further, the condition that the transmission node of authorizing the carrier wave on frequency spectrum to trigger the first system detects again can include but not limited to following: the transmission node number of the first system and other system has greatly changed; Or the business of the first system or other system has greatly changed.
Step 101: transmission node carries out transfer of data on a shared frequency spectrum in data transmission period, detects the resource utilization shared on frequency spectrum within the silence period.
In this step, within the data transmission period T2 time, the transmission node of the first system adopts the mechanism of existing the first system to carry out transfer of data.In data transmission period T2, the transmission node of other system can not take.
Further, the starting point of the data transmission period T2 of all transmission nodes of the first system in network coverage is alignment.
The resource utilization shared on frequency spectrum that detects within the silence period in this step specifically comprises:
According to pre-setting time granularity T
step, silence period T3 is divided into some equal portions, supposes N equal portions, each equal portions are called time granularity T
stepequal portions, its time span just equals time granularity T
step;
Detect each time granularity T
stepthe interior resource utilization shared on frequency spectrum;
When certain time granularity T being detected
stepwhen interior signal energy is lower than predetermined threshold value, mark this time granularity T
stepinterior resource is idle, idling-resource counter K can be done simultaneously and add a process.
Wherein, time granularity T
stepsize can determine with the transmission unit of certain system, a subframe etc. of such as LTE system, it should be noted that how to determine time granularity T
stephere be only that simple example illustrates, the protection range be not intended to limit the present invention, does not also limit.
Step 102: according to the resource utilization on the shared frequency spectrum detected, adjust the data transmission period in next Preset Time and silence period.
Data transmission period in the next Preset Time of adjustment in this step and silence period comprise: when resource space idle having been detected in silence period T3, the data transmission period T2 one of in the following way in the next preset time T 1 of adjustment and silence period T3:
The first adjusts mode:
If idling-resource have k equal portions and k<N time, by k idle time granularity T
stepadjust to the data transmission period T2 of next preset time T 1: the data transmission period T2 of next preset time T 1 is data transmission period T2 and the idling-resource number k and time granularity T of current preset time T1
stepthe product value sum of product, i.e. T2=T2+kT
step; The silence period of next preset time T 1 is silence period T3 and the idling-resource number k and time granularity T of current preset time T1
stepthe difference of product value of product, i.e. T3=T3-kT
step;
If idling-resource have k equal portions and k=N time, by the time granularity T of individual to (k-1) free time
stepadjust to the data transmission period T2 of next preset time T 1: the data transmission period T2 of next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and time granularity T
stepthe product value sum of product and T2=T2+ (k-1) T
step; The silence period of next preset time T 1 is time granularity T
step, i.e. T3=T
step;
If there is no idling-resource, then do not adjust; Or next preset time T 1 data transmission period T2 is adjusted to the minimum value T2 of data transmission period T2
min, i.e. T2=T2
min, the silence period T3 of next preset time T 1 is the minimum value T2 of the data transmission period T2 of preset time T 1 and current preset time T1
minthe difference of difference, i.e. T3=T1-T2
min;
Distinguishingly, if be consecutively detected the equal portions resource of p free time, then stop quiet period, namely directly enter the data transmission period of next preset time T 1 in advance immediately.Here, assuming that the resource after the equal portions resource of original quiet period inherent p free time continuously is also all idle, therefore, the data transmission period T2 of next preset time T 1 is the data transmission period T2 of current preset time T1 and (waiting number N-m) and time granularity T
stepthe product value sum of product, i.e. T2=T2+ (N-m) T
step; The silence period T3 of next preset time T 1 is m and described time silence period granularity T
stepthe product value of product, i.e. T3=mT
step., wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource, supposes m+p<=N here.
The second adjustment mode:
If idling-resource has k equal portions and k>1, then by the time granularity T of individual to (k-1) free time
stepadjust to the time T2 of the transfer of data of next preset time T 1, the data transmission period T2 of next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and time granularity T
stepthe product value sum of product, i.e. T2=T2+ (k-1) T
step; The silence period T3 of next preset time T 1 is (difference of the difference of isodisperse N and (idling-resource number k-1) and time granularity T
stepthe product value of product, i.e. T3=(N-k+1) T
step;
If only have the in one's duty resource such as to be idle, then do not adjust;
If there is no idling-resource, be then time granularity T according to step-length
stepadjust time T2 and the silence period T3 of the transfer of data of next preset time T 1, specifically comprise: the data transmission period T2 of next preset time T 1 is current data transmission period and time granularity T
stepthe difference of difference, i.e. T2=T2-T
step; The silence period T3 of next preset time T 1 is current silence period and time granularity T
stepsum and value, i.e. T3=T3+T
step; Wherein, the data transmission period T2 of the next preset time T 1 after adjustment can not be less than the minimum value T2 being namely more than or equal to initial data transmission period T2
minif, current preset time T1 data transmission period T2 equal the minimum value T2 of data transmission period T2
min, then do not adjust;
Distinguishingly, if be consecutively detected the equal portions resource of p free time, then stop quiet period, directly enter the data transmission period of next preset time T 1 in advance.Here, assuming that the resource after the equal portions resource of original quiet period inherent p free time continuously is also all idle, therefore, the data transmission period of next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m-1) and described time granularity T
stepthe product value sum of product, i.e. T2=T2+ (N-m-1) T
step; The silence period T3 of next preset time T 1 is (m+1) and described time silence period granularity T
stepthe product value of product; Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource, supposes m+p<=N here.
In data transmission period in the next Preset Time of the adjustment of this step and silence period mode, p is the value pre-set.
If detection time, window W was the cycle, so, continue adjustment till the end cycle of window W detection time, and wait for that window detection time in next week arrives; If window W detection time triggers, so, adjustment is continued till receiving again detection trigger time window.
By the inventive method, solve LTE system and other system coexistence problems on a shared frequency spectrum, achieve LTE normal work on a shared frequency spectrum.
Fig. 2 is the composition structural representation of transmission node of the present invention, as shown in Figure 2, at least comprises determination module, transfer of data and detection module, and adjusting module; Wherein,
Determination module, for determining data transmission period initial in Preset Time and silence period.
Determination module specifically for:
The transmission node number of the first system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the transmission node number of other system and/or detection time window W; Or, detect the active situation of the transmission node of other system in window W in detection time, and the resource idle condition of shared frequency spectrum in the business demand of the transmission node of the first system and/or detection time window W;
Initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of T2
min;
Or, determination module specifically for: receive from the carrier wave of authorizing on frequency spectrum, carry initial data transmission period T2 and silence period T3, and the minimum value T2 of T2
minsignaling.
Or, determination module specifically for: pre-set initial data transmission period T2 and silence period T3, and the minimum value T2 of T2
min, the minimum value T2 of such as T2:T3=1:1, T2
minequal initial T2.
Transfer of data and detection module, for carrying out transfer of data on a shared frequency spectrum in data transmission period, detect the resource utilization shared on frequency spectrum within the silence period.
Particularly,
Transfer of data and detection module specifically for: within the data transmission period T2 time, transmission node adopts the current mechanism of said system to carry out transfer of data, and now, in data transmission period T2, the transmission node of other system can not take;
Further, the starting point of the data transmission period T2 of all transmission nodes of the first system in network coverage is alignment.
Further, transfer of data and detection module specifically for: according to pre-setting time granularity T
step, silence period T3 is divided into some equal portions; Detect each time granularity T
stepthe interior resource utilization shared on frequency spectrum; When certain time granularity T being detected
stepwhen interior signal energy is lower than predetermined threshold value, mark this time granularity T
stepinterior resource is idle.
Adjusting module, for according to the resource service condition on the shared frequency spectrum detected, adjusts the data transmission period in next Preset Time and silence period, and the data transmission period after adjustment and silence period are exported to transfer of data and detection module.
Particularly,
Adjusting module specifically for: when idling-resource have k equal portions and k<N time, by k idle time granularity T
stepadjust to the data transmission period T2 of next preset time T 1, i.e. T2=T2+kT
step, silence period T3=T3-kT
step;
When idling-resource have k equal portions and k=N time, by the time granularity T of individual to (k-1) free time
stepadjust to the data transmission period T2 of next preset time T 1, i.e. T2=T2+ (k-1) T
step, silence period T3=T
step;
When there is no idling-resource, then do not adjust; Or data transmission period T2 is adjusted to the minimum value T2 of data transmission period T2
min, i.e. T2=T2
min, silence period T3=T1-T2
min;
Distinguishingly, if be consecutively detected the equal portions resource of p free time, then stop quiet period, enter the data transmission period of next preset time T 1 in advance.Here, assuming that the resource after the equal portions resource of original quiet period inherent p free time continuously is also all idle, therefore, data transmission period T2=T2+ (N-m) T of next preset time T 1
step, wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource, and the silence period is T3=mT
step, suppose m+p<=N here.
Wherein, p is the value pre-set.
Or,
Adjusting module specifically for: when idling-resource has k equal portions and k>1, then by time granularity T individual to (k-1)
stepadjust to the time T2 of next transfer of data, i.e. T2=T2+ (k-1) T
step, silence period T3=(N-k+1) T
step;
When only having the in one's duty resource such as to be idle, then do not adjust;
When there is no idling-resource, be then time granularity T according to step-length
stepthe time T2 of adjustment transfer of data and silence period T3, specifically comprises: the data transmission period T2 of next preset time T 1 is that current data transmission period deducts a time granularity T
step, i.e. T2=T2-T
step; Silence period T3 adds a time granularity T the current silence period
step, i.e. T3=T3+T
step; Wherein, the data transmission period T2 after adjustment can not be less than the minimum value T2 of data transmission period T2
minif current data transmission period T2 equals the minimum value T2 of data transmission period T2
min, then do not adjust;
Distinguishingly, if be consecutively detected the equal portions resource of p free time, then stop quiet period, enter the data transmission period of next preset time T 1 in advance.Here, assuming that the resource after the equal portions resource of original quiet period inherent p free time continuously is also all idle, therefore data transmission period T2=T2+ (N-m-1) T of next preset time T 1
step, wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource, and the silence period is T3=(m+1) T
step, suppose m+p<=N here.
Wherein, p is the value pre-set.
Below in conjunction with specific embodiment, the inventive method is described in detail.
Fig. 3 is the schematic diagram of the first embodiment of frequency spectrum sharing method of the present invention, suppose in the first embodiment, the first system is LTE system, as shown in Figure 3, first embodiment gives and the present invention is based on time T2 and the silence period T3 that detection window time W determines transfer of data, and based on the testing result adjustment time T2 of transfer of data in silence period T3 and a schematic diagram of silence period T3.
In a first embodiment, suppose that detection time, window W was the cycle, and the cycle is T, in cycle T, the transmission node of LTE first detects the transmission node number of current LTE system in detection time in window W, and the transmission node number of other non-LTE system is as the website of WIFI system, the minimum transfer time of LTE system can be determined according to the transmission node number of the LTE system detected and the website number of WIFI system.In a first embodiment, suppose to detect that the transmission node of LTE system has X, the transmission node number of non-LTE system has Y, so, in preset time T 1, determine to allow to carry out the minimum of LTE transfer of data be
this value is constant in cycle T, as the lower limit that subsequent data transmission time T2 adjusts.It should be noted that the transmission node number of the LTE system that the transmission node of the LTE supposed in certain network coverage detects and the transmission node number of other non-LTE system are identical here.
Meanwhile, in detection time window W, can also detect the resource utilization of shared frequency spectrum, obtain data transmission period T2 initial in cycle T and silence period T3, represent with LTE-ON and LTE-OFF respectively in Fig. 1.
In a first embodiment, the cycle of window W detection time is T, then when next cycle T starts, the transmission node of LTE re-starts detection, again the transmission node of surrounding is detected, initial data transmission period T2 and silence period T3 in first preset time T 1 redefining next cycle T based on the transmission node detected.
Here suppose, in cycle T the transmission node number of LTE system and the transmission node number of non-LTE system or business change little.
In a first embodiment, preset time T 1 can be determined based on window W detection time, also can be passed through the transmission node of signaling the first system by the carrier wave of authorizing on frequency spectrum, wherein, preset time T 1, the relation of data transmission period T2 and silence period T3 meets: T1=T2+T3.
What the first embodiment provided is determine initial LTE-ON and the LTE-OFF time based on the transmission node number of the LTE system detected in window W detection time and non-LTE system, in figure, LTE-ON is corresponding with data transmission period T2, and LTE-OFF is corresponding with silence period T3.As another embodiment, also can according to the time statistics of LTE system and the business demand in non-LTE system a period of time being determined to initial LTE-ON and LTE-OFF, determine initial LTE-ON and the LTE-OFF time for other modes of employing, the present invention does not limit.
Easily find out, in second preset time T 1 in Fig. 3 shown in cycle T, the data transmission period in the next Preset Time after data transmission period T2 and the silence period T3 step 102 be according to Fig. 1 of the present invention adjusts and silence period.
Fig. 4 is the schematic diagram of the second embodiment of frequency spectrum sharing method of the present invention, suppose in the second embodiment, the first system is LTE system, as shown in Figure 4, the second embodiment gives carrier wave on the mandate frequency spectrum of the present invention minimum value T2 by the initial data transmission period T2 of the transmission node of signaling LTE and silence period T3, data transmission period T2
minand a schematic diagram of data transmission period T2 and silence period T3 is adjusted based on the testing result in silence period T3, as shown in Figure 4, in a second embodiment, the carrier wave on frequency spectrum is authorized by the transmission node of the LTE belonging to signaling about allowing the initial data transmission period T2 and the silence period T3 that carry out LTE transfer of data;
In addition, for initial data transmission period T2 and silence period T3, also the default value pre-set can be adopted to determine, such as, suppose that preset time T 1 is known (as the mode by signaling obtains), so, the time of data transmission period T2 and silence period T3 divides equally preset time T 1 according to the ratio of 1:1, meanwhile, the minimum value T2 of setting data transmission time T2 in a second embodiment
min=T2=T1/2.
Easily find out, in second preset time T 1 in Fig. 4 shown in cycle T, the data transmission period in the next Preset Time after data transmission period T2 and the silence period T3 step 102 be according to Fig. 1 of the present invention adjusts and silence period.
Fig. 5 is the schematic diagram of the 3rd embodiment of frequency spectrum sharing method of the present invention, as shown in Figure 5,3rd embodiment gives the resource utilization on the shared frequency spectrum that detects based on silence period T3, adopt the first the adjustment mode in the step 102 shown in Fig. 1 of the present invention, adjust the data transmission period T2 and silence period T3 that allow to carry out LTE transfer of data in next preset time T 1.
In 3rd embodiment, first, as shown in Figure 5, suppose silence period T3 according to time granularity T
stepdivide in order to 10 equal portions; Further, suppose that, in current preset time T1, the ratio obtaining initial data transmission period T2 and silence period T3 according to window W detection time is 10:10, supposes T2 simultaneously
min=10T
step;
In 3rd embodiment, suppose to obtain in the detection carrying out the resource utilization on shared frequency spectrum, idling-resource has 2 parts, as shown in the diagonal line hatches equal portions in Fig. 5, i.e. k=2, due to k=2<N=10, so, in next preset time T 1, according to the first adjustment mode, the data transmission period T2=T2+k*T carrying out LTE transfer of data will be allowed
step=T2+2T
step, T3=(N-k) * T3/N=8T
step; Now there is T2:T3=12:8;
Then, in next preset time T 1, LTE transfer of data is carried out in the transmission node of LTE data transmission period T2 after the adjustment, then the detection of share spectrum resources utilization power is carried out in silence period T3 after the adjustment, further, suppose to obtain in the continuation carrying out the resource utilization on shared frequency spectrum detects, there is no idling-resource, so, according to the first adjustment mode, by the data transmission period T2 of use in i.e. next preset time T 1 current for maintenance and silence period T3 constant rate in ensuing next preset time T 1 again; Or, in ensuing next preset time T 1 again, data transmission period T2 is adjusted to T2
min, now, T2=T2
min=10T
step, T3=T1-T2=10T
step, i.e. T2:T3=10:10.
Especially, if carry out obtaining in the detection of the resource utilization on shared frequency spectrum in silence period T3, it is all idling-resource in all silence period T3, that is k=N, now, in order to guarantee the resource utilization on shared frequency spectrum to be detected, the time at least must leaving equal portions carries out detection and T3T
step, therefore, in this case, the time of data transmission period T2 will can be adjusted to T2=T2+ (k-1) T
step, silence period T3 will be adjusted to T3=T
step;
Fig. 6 is the schematic diagram of quiet period premature termination in the 3rd embodiment of frequency spectrum sharing method of the present invention, and as shown in Figure 6, Fig. 6 gives an example about quiet period premature termination.According to the first adjustment mode, suppose if it is idle for being consecutively detected 3 parts of resources, just think that the resource in follow-up quiet period is also idle, can premature termination quiet period, enter data transmission period.As shown in Figure 6, in the silence period T3 of current preset time T1, detect that just like continuous 3 equal portions shown in diagonal line hatches equal portions be idling-resource, and, before being consecutively detected continuous 3 equal portions resources, idling-resource has 1 part (as shown in diagonal line hatches equal portions), busy resource has 4 parts (as shown in blank equal portions), now, according to the first adjustment mode, the data transmission period T2 in next preset time T 1 is adjusted to: T2=T2+ (N-m) T
step=T2+6T
step, the silence period, T3 was adjusted to: T3=mT
step=4T
step, now, T2:T3=16:4;
According to Fig. 6 dotted line frame shown in visible, according to the adjustment mode shown in Fig. 5, the transmission node of LTE needs just can enter next preset time T 1 after the quiet period of current preset time T1 terminates completely, and, according to the adjustment mode shown in Fig. 5, those skilled in the art easily show that the ratio of data transmission period T2 in next preset time T 1 and silence period T3 is: T2:T3=16:4; But, if adopt the special adjustment mode of the premature termination shown in Fig. 6, then can directly enter new transmission period after being consecutively detected 5 parts of idling-resources, so more be conducive to making full use of of resource.
Fig. 7 is the schematic diagram of the 4th embodiment of frequency spectrum sharing method of the present invention, as shown in Figure 7,4th embodiment gives the resource utilization on the shared frequency spectrum that detects based on silence period T3, adopt the second adjustment mode in the step 102 shown in Fig. 1 of the present invention, adjust the data transmission period T2 and silence period T3 that allow to carry out LTE transfer of data in next preset time T 1.
In 4th embodiment, first, as shown in Figure 7, suppose silence period T3 according to time granularity T
stepdivide in order to 10 equal portions; Further, suppose that, in current preset time T1, the ratio obtaining initial data transmission period T2 and silence period T3 according to window W detection time is 10:10, supposes T2 simultaneously
min=10T
step;
In 4th embodiment, suppose to obtain in the detection carrying out the resource utilization on shared frequency spectrum, idling-resource has 3 parts, as shown in the diagonal line hatches equal portions in Fig. 7, i.e. k=3, so, in next preset time T 1, according to the second adjustment mode, data transmission period T2=T2+ (k-1) T carrying out LTE transfer of data will be allowed
step=T2+2T
step, T3=(N-k+1) T
step=8T
step; Now there is T2:T3=12:8;
Then, in next preset time T 1, LTE transfer of data is carried out in the transmission node of LTE data transmission period T2 after the adjustment, then the detection of share spectrum resources utilization power is carried out in silence period T3 after the adjustment, further, suppose to obtain in the continuation carrying out the resource utilization on shared frequency spectrum detects, there is no idling-resource, so, according to the first adjustment mode, ensuing be that step-length adjusts data transmission period T2 and silence period T3 respectively with Tstep in next preset time T 1 inland river, also i.e. T2=T2-T
step=11T
step, T3=T3+T
step=9T
step, now, T2:T3=11:9.
Fig. 8 is the schematic diagram of quiet period premature termination in the 4th embodiment of frequency spectrum sharing method of the present invention, and as shown in Figure 8, Fig. 8 gives an example about quiet period premature termination.According to the second adjustment mode, suppose if it is idle for being consecutively detected 3 equal portions resources, just think that the resource in follow-up quiet period is also idle, can premature termination quiet period, enter data transmission period.As shown in Figure 8, in the silence period T3 of current preset time T1, detect that just like continuous 3 equal portions shown in diagonal line hatches equal portions be idling-resource, and, before being consecutively detected continuous 5 equal portions resources, idling-resource has 1 part (as shown in diagonal line hatches equal portions), busy resource has 4 parts (as shown in blank equal portions), now, according to the first adjustment mode, the data transmission period T2 in next preset time T 1 is adjusted to: T2=T2+ (N-m-1) T
step=T2+5T
step, the silence period, T3 was adjusted to: T3=(m+1) T
step=5T
step, now, T2:T3=15:5.
According to Fig. 8 dotted line frame shown in visible, according to the adjustment mode shown in Fig. 7, the transmission node of LTE needs just can enter next preset time T 1 after the quiet period of current preset time T1 terminates completely, and, according to the adjustment mode shown in Fig. 7, those skilled in the art easily show that the ratio of data transmission period T2 in next preset time T 1 and silence period T3 is: T2:T3=15:5; But, if adopt the special adjustment mode of the premature termination shown in Fig. 8, then can directly enter new transmission period after being consecutively detected 5 parts of idling-resources, so more be conducive to making full use of of resource.
The above, be only preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1. a frequency spectrum sharing method, is characterized in that, comprising: initial data transmission period and silence period in transmission node determination Preset Time;
Transmission node carries out transfer of data on a shared frequency spectrum in data transmission period, detects the resource utilization shared on frequency spectrum within the silence period;
According to the resource utilization on the shared frequency spectrum detected, adjust the data transmission period in next Preset Time and silence period.
2. frequency spectrum sharing method according to claim 1, is characterized in that, describedly determines that data transmission period in Preset Time and silence period comprise:
Detect the transmission node number of described transmission node said system in window W in detection time, and the transmission node number of other system outside described transmission node said system and/or share in window W detection time frequency spectrum resource idle condition;
Described initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of described initial data transmission period T2
min;
Or,
The active situation of the transmission node of the other system outside described transmission node said system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the business demand of the transmission node of described transmission node said system and/or detection time window W;
Described initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of described initial data transmission period T2
min.
3. frequency spectrum sharing method according to claim 1, is characterized in that, described preset time T 1 is determined based on window W detection time; Or described preset time T 1 passes through transmission node described in signaling by the carrier wave of authorizing on frequency spectrum;
Wherein, described preset time T 1 equals described initial data transmission period T2 and silence period T3 sum.
4. the frequency spectrum sharing method according to Claims 2 or 3, is characterized in that, described detection time, window W comprised the described silence period; Or described detection time, window W was what pre-set.
5. frequency spectrum sharing method according to claim 2, is characterized in that, described detection time, window W was the cycle, its cycle size by the carrier wave of authorizing on frequency spectrum by signal deployment or default;
Or described detection time, window W was trigger-type, triggers described transmission node by the carrier wave of authorizing on frequency spectrum and again detect.
6. frequency spectrum sharing method according to claim 1, is characterized in that, describedly determines that data transmission period in Preset Time and silence period comprise:
The carrier wave on frequency spectrum is authorized to pass through signaling, by described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
min, notify described transmission node.
7. frequency spectrum sharing method according to claim 1, is characterized in that, describedly determines that data transmission period in Preset Time and silence period comprise:
Described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
minfor the default value pre-set;
Wherein, described preset time T 1 equals described initial data transmission period T2 and silence period T3 sum, and described data transmission period T2 and silence period T3 ratio are 1:1, the minimum value T2 of described initial data transmission period T2
minequal initial data transmission period T2.
8. frequency spectrum sharing method according to claim 1, is characterized in that, within the described data transmission period T2 time, described transmission node adopts the current mechanism of its said system to carry out transfer of data;
In described data transmission period T2, the transmission node of the other system outside described transmission node said system can not take.
9. frequency spectrum sharing method according to claim 8, is characterized in that, in network coverage, the starting point of the data transmission period T2 of all transmission nodes of described transmission node said system is alignment.
10. frequency spectrum sharing method according to claim 1, is characterized in that, the described resource utilization shared on frequency spectrum that detects within the silence period specifically comprises:
According to pre-setting time granularity T
step, described silence period T3 is divided into some equal portions, each time granularity T
stepthe time span of equal portions just equals time granularity T
step;
Detect each time granularity T
stepthe interior resource utilization shared on frequency spectrum;
When certain time granularity T being detected
stepwhen interior signal energy is lower than predetermined threshold value, mark this time granularity T
stepinterior resource is idle.
11. frequency spectrum sharing methods according to claim 10, is characterized in that, when resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If idling-resource has k equal portions and k<N, by the time granularity T of k free time
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is data transmission period T2 and the idling-resource number k and described time granularity T of current preset time T1
stepthe product value sum of product, and,
The silence period of described next preset time T 1 is silence period T3 and the idling-resource number k and described time granularity T of current preset time T1
stepthe difference of product value of product;
Or, if idling-resource has k equal portions and k=N, by the time granularity T of individual to (k-1) free time
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is described time granularity T
step;
Or, if there is no idling-resource, then do not adjust; Or, the data transmission period T2 of described next preset time T 1 is adjusted to the minimum value T2 of the data transmission period T2 of current preset time T1
min; The silence period T3 of described next preset time T 1 is the minimum value T2 of the data transmission period T2 of described preset time T 1 and current preset time T1
minthe difference of difference;
Wherein, described some equal portions are N equal portions.
12. frequency spectrum sharing methods according to claim 10, is characterized in that, when resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If be consecutively detected the equal portions resource of p the free time pre-set, then directly enter the data transmission period of described next preset time T 1;
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is m and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
13. resource share methods according to claim 10, is characterized in that, when resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If idling-resource has k equal portions and k>1, by the time granularity T of individual to (k-1) free time
stepadjust to the time T2 of the transfer of data of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is (difference of isodisperse N and the difference of (idling-resource number k-1) and described time granularity T
stepthe product value of product;
Or, if only have the in one's duty resource such as to be idle, then do not adjust;
Or, if there is no idling-resource, be then described time granularity T according to step-length
stepadjust time T2 and the silence period T3 of the transfer of data of described next preset time T 1:
The data transmission period T2 of described next preset time T 1 is current data transmission period and described time granularity T
stepthe difference of difference; The silence period T3 of described next preset time T 1 is current silence period T3 and described time granularity T
stepsum and value; Wherein, the data transmission period T2 of described next preset time T 1 is more than or equal to the minimum value T2 of described initial data transmission period T2
min; If the data transmission period T2 of current preset time T1 equals the minimum value T2 of data transmission period T2
min, then do not adjust.
14. resource share methods according to claim 10, is characterized in that, when resource space idle having been detected in described silence period T3, the data transmission period in the next Preset Time of described adjustment and silence period comprise:
If be consecutively detected the equal portions resource of p the free time pre-set, then directly enter the data transmission period of next preset time T 1;
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m-1) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is (m+1) and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
15. 1 kinds of transmission nodes, is characterized in that, at least comprise determination module, transfer of data and detection module, and adjusting module; Wherein,
Determination module, for determining data transmission period initial in Preset Time and silence period;
Transfer of data and detection module, for carrying out transfer of data on a shared frequency spectrum in data transmission period, detect the resource utilization shared on frequency spectrum within the silence period;
Adjusting module, for according to the resource utilization on the shared frequency spectrum detected, adjusts the data transmission period in next Preset Time and silence period, and the data transmission period after adjustment and silence period are exported to transfer of data and detection module.
16. transmission nodes according to claim 15, is characterized in that, described determination module specifically for:
The transmission node number of described transmission node said system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the transmission node number of other system outside described transmission node said system and/or detection time window W; Or, the active situation of the transmission node of the other system outside described transmission node said system is detected in window W in detection time, and the resource idle condition of shared frequency spectrum in the business demand of the transmission node of described transmission node said system and/or detection time window W;
Described initial data transmission period T2 and silence period T3 is determined according to the information detected, and the minimum value T2 of described initial data transmission period T2
min.
17. transmission nodes according to claim 15, it is characterized in that, described determination module specifically for: receive from the carrier wave of authorizing on frequency spectrum, carry described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
minsignaling.
18. transmission nodes according to claim 15, is characterized in that, described determination module specifically for: pre-set described initial data transmission period T2 and silence period T3, and the minimum value T2 of described initial data transmission period T2
min.
19. transmission nodes according to claim 15, is characterized in that, described transfer of data and detection module specifically for:
Within the described data transmission period T2 time, described transmission node adopts the current mechanism of its said system to carry out transfer of data; In described data transmission period T2, the transmission node of the other system outside described transmission node said system can not take;
According to pre-setting time granularity T
step, described silence period T3 is divided into some equal portions; Detect each time granularity T
stepthe interior resource utilization shared on frequency spectrum; When certain time granularity T being detected
stepwhen interior signal energy is lower than predetermined threshold value, mark this time granularity T
stepinterior resource is idle.
20. transmission nodes according to claim 19, is characterized in that, in network coverage, the starting point of the data transmission period T2 of all transmission nodes of described transmission node said system is alignment.
21. transmission nodes according to claim 15, is characterized in that, described adjusting module specifically for:
When idling-resource have k equal portions and k<N time, by k idle time granularity T
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is data transmission period T2 and the idling-resource number k and described time granularity T of current preset time T1
stepthe product value sum of product, and,
The silence period of described next preset time T 1 is silence period T3 and the idling-resource number k and described time granularity T of current preset time T1
stepthe difference of product value of product;
When idling-resource have k equal portions and k=N time, by the time granularity T of individual to (k-1) free time
stepadjust to the data transmission period T2 of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is described time granularity T
step;
When there is no idling-resource, then do not adjust; Or, the data transmission period T2 of described next preset time T 1 is adjusted to the minimum value T2 of the data transmission period T2 of current preset time T1
min; The silence period T3 of described next preset time T 1 is the minimum value T2 of the data transmission period T2 of described preset time T 1 and current preset time T1
minthe difference of difference;
Wherein, described some equal portions are N equal portions.
22. transmission nodes according to claim 15, is characterized in that, described adjusting module specifically for:
When being consecutively detected p idle equal portions resource, described in the data transmission period directly entering next preset time T 1, the data transmission period T2 of next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is m and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
23. transmission nodes according to claim 15, is characterized in that, described adjusting module specifically for:
When idling-resource have k equal portions and k>1 time, by the time granularity T of individual to (k-1) free time
stepadjust to the time T2 of the transfer of data of next preset time T 1:
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (idling-resource number k-1) and described time granularity T
stepthe product value sum of product, and the silence period T3 of described next preset time T 1 is (difference of isodisperse N and the difference of (idling-resource number k-1) and described time granularity T
stepthe product value of product;
Or, when being idle when only having the in one's duty resource such as, then do not adjust;
Or, when there is no idling-resource, be then described time granularity T according to step-length
stepadjust time T2 and the silence period T3 of the transfer of data of described next preset time T 1:
The data transmission period T2 of described next preset time T 1 is current data transmission period and described time granularity T
stepthe difference of difference; The silence period T3 of described next preset time T 1 is current silence period T3 and described time granularity T
stepsum and value; Wherein, the data transmission period T2 of described next preset time T 1 is more than or equal to the minimum value T2 of described initial data transmission period T2
min; If the data transmission period T2 of current preset time T1 equals the minimum value T2 of data transmission period T2
min, then do not adjust.
24. transmission nodes according to claim 15, is characterized in that, described adjusting module specifically for:
When being consecutively detected the equal portions resource of p the free time pre-set, then directly enter the data transmission period of next preset time T 1;
The data transmission period T2 of described next preset time T 1 is the data transmission period T2 of current preset time T1 and (isodisperse N-m-1) and described time granularity T
stepthe product value sum of product;
The silence period T3 of described next preset time T 1 is (m+1) and described time silence period granularity T
stepthe product value of product;
Wherein, m is that what detect before being consecutively detected p idle equal portions resource is the numbers such as not idle resource; And m+p<=N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410465622.1A CN105407489B (en) | 2014-09-12 | 2014-09-12 | Spectrum sharing method and transmission node |
| PCT/CN2015/079619 WO2016037495A1 (en) | 2014-09-12 | 2015-05-22 | Spectrum sharing method and transmission node |
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| CN201410465622.1A CN105407489B (en) | 2014-09-12 | 2014-09-12 | Spectrum sharing method and transmission node |
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| CN105407489B CN105407489B (en) | 2020-06-23 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306401A (en) * | 2016-04-18 | 2017-10-31 | 普天信息技术有限公司 | A kind of contention resolution and sensory perceptual system based on frequency spectrum share |
| CN112532310A (en) * | 2020-12-21 | 2021-03-19 | 国网浙江省电力有限公司信息通信分公司 | Satellite emergency communication and ubiquitous satellite Internet of things spectrum sharing method and device |
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|---|---|---|---|---|
| CN102215076A (en) * | 2011-06-09 | 2011-10-12 | 电信科学技术研究院 | Spectrum sensing triggering and realization methods, systems and equipment |
| CN102648646A (en) * | 2009-12-02 | 2012-08-22 | 高通股份有限公司 | Apparatus and methods for spectrum sharing using listen-before-talk with quiet periods |
| US20140011509A1 (en) * | 2012-07-06 | 2014-01-09 | Nokia Siemens Networks Oy | Use of Licensed Shared Spectrum in a Radio Access Network Where Signal Propagation is Unknown |
-
2014
- 2014-09-12 CN CN201410465622.1A patent/CN105407489B/en active Active
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2015
- 2015-05-22 WO PCT/CN2015/079619 patent/WO2016037495A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648646A (en) * | 2009-12-02 | 2012-08-22 | 高通股份有限公司 | Apparatus and methods for spectrum sharing using listen-before-talk with quiet periods |
| CN102215076A (en) * | 2011-06-09 | 2011-10-12 | 电信科学技术研究院 | Spectrum sensing triggering and realization methods, systems and equipment |
| US20140011509A1 (en) * | 2012-07-06 | 2014-01-09 | Nokia Siemens Networks Oy | Use of Licensed Shared Spectrum in a Radio Access Network Where Signal Propagation is Unknown |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107306401A (en) * | 2016-04-18 | 2017-10-31 | 普天信息技术有限公司 | A kind of contention resolution and sensory perceptual system based on frequency spectrum share |
| CN107306401B (en) * | 2016-04-18 | 2019-09-17 | 普天信息技术有限公司 | A kind of contention resolution and sensory perceptual system based on frequency spectrum share |
| CN112532310A (en) * | 2020-12-21 | 2021-03-19 | 国网浙江省电力有限公司信息通信分公司 | Satellite emergency communication and ubiquitous satellite Internet of things spectrum sharing method and device |
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| Publication number | Publication date |
|---|---|
| CN105407489B (en) | 2020-06-23 |
| WO2016037495A1 (en) | 2016-03-17 |
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