CN106851842B - Resource allocation methods, base station based on terminal references signal detection, terminal - Google Patents
Resource allocation methods, base station based on terminal references signal detection, terminal Download PDFInfo
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- CN106851842B CN106851842B CN201510888791.0A CN201510888791A CN106851842B CN 106851842 B CN106851842 B CN 106851842B CN 201510888791 A CN201510888791 A CN 201510888791A CN 106851842 B CN106851842 B CN 106851842B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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Abstract
The present invention provides a kind of resource allocation methods based on terminal references signal detection, base station, terminal, in the present invention, base station notice terminal when business reaches carries out business frequency availability and reports；The case where base station is according to available and idle schedulable frequency point determines that the frequency point ranges that terminal reports, notice terminal carry out business frequency availability and report in conjunction with the demand bandwidth of terminal；Base station receives reported result, can be judged with situation according to frequency point, if there is no unavailable frequency points or unavailable frequency point to be less than specified thresholding in continuous frequency point, allows to dispatch on counterpart terminal to the corresponding channel of the continuous frequency point.Wherein, the present invention carries out the downlink reference signal that base station issues using terminal to parse determining frequency point availability.It is unsuccessful or business efficiency of transmission is low that the present invention can be avoided scheduling of resource caused by interference, guarantees terminal transmission quality, improves the service efficiency of frequency spectrum resource, effectively save interface-free resources.
Description
Technical field
The invention belongs to interference coordination technique fields, are more particularly to a kind of resource based on terminal references signal detection point
Method of completing the square, base station, terminal.
Background technique
With the rapid development of wireless communication technique, more and more industrial applications also use wireless communication system to carry out industry
Business transmission.And for the wireless system of different industries application, the disturbed condition that wireless channel is subject to is complex, base station and terminal
The disturbed condition respectively perceived not fully, can cause wireless two-way chain environment asymmetric.In order to guarantee honeycomb system
The communication interaction united between lower base station and terminal it is reliable, need in the respective transceiving range of receiving-transmitting sides that all there is no interference
It can reach.
At present the public network time-division it is double to attack TDD system be the reciprocity based on uplink and downlink channel, with the measurement of uplink signal-channel quality,
To assist base station to complete the functions such as frequency selection scheduling, power control.And frequency environment is complex in applying, electromagnetic interference can cause
Wireless two-way chain environment is asymmetric.It, can not correct response downlink letter only according to up channel testing result as scheduling foundation
The actual conditions in road, being scheduled to terminal may result in that traffic scheduling is unsuccessful or business laser propagation effect after dispatching successfully
Difference, interface-free resources service efficiency be not high.
Summary of the invention
The technical problem to be solved by the present invention is to how improve the business tune between base station and terminal in wireless communication procedure
The efficiency and interface-free resources service efficiency that business is transmitted between base station and terminal after spending success rate, dispatching successfully.
In order to solve the above technical problem, the present invention provides a kind of resource allocation sides based on terminal references signal detection
Method the described method comprises the following steps:
One or more available frequency points are found according to uplink signal-channel quality；
Described in frequency point, frequency point can be distributed by finding one or more according to frequency point service condition；It is wherein described to divide
With frequency point be it is described can in frequency point currently without the frequency point used；
Judge it is the multiple distribute in frequency point with the presence or absence of N number of continuous frequency point, there are N number of continuous frequency points at present
Uploading instructions are sent out to corresponding terminal；Corresponding terminal will be in corresponding N number of continuous frequency point according to the uploading instructions
The availability of each frequency point uploaded；
It is corresponding terminal distribution frequency point according to the availability of each frequency point in N number of continuous frequency point.
Preferably, the N in N number of continuous frequency point is determined according to the frequency point number of counterpart terminal business demand.
Preferably, the method execution in the service request for receiving terminal.
Preferably, the availability of the frequency point is obtained using following step:
Issue downlink reference signal；
Terminal periodic the downlink reference signal on its each business frequency is measured, according to measurement result
Calculate the SNR value on each business frequency；
For each SNR value, if it is greater than or equal to predetermined threshold, corresponding frequency point is available frequency point, otherwise
For unavailable frequency point.
Preferably, average the method also includes calculating the SNR value before judging availability for each SNR value
The step of value:
A business frequency corresponding for terminal calculates multiple SNR values in one cycle, and in corresponding end cycle
When calculate the multiple SNR value average value as final SNR value, judge its correspondence using the final SNR value later
Frequency point availability.
Preferably, described to measure the following steps are included: each business frequency to terminal is grouped, the latter
Every group of business frequency in period is measured in predetermined point of time, wherein the predetermined point of time is calculated using following formula
It arrives:
T=SFN_start+ (i-1) * num_meas
In formula, at the beginning of SFN_start is first group of business frequency measurement in corresponding period；I=1~(sys_
Freq)/(max_uecapability-2) is grouping serial number, wherein each group includes one or more frequency points, and in every group
Each frequency point measure simultaneously；Num_meas is the downlink ginseng for continuously measuring same business frequency in one cycle
Examine the number of signal；Sys_freq is the business frequency sum used, and max_uecapability is the industry that terminal can be supported
Business frequency point number.
Preferably, it is calculated at the beginning of first group of business frequency measurement in the corresponding period using following formula:
SFN_start=SFN_start1+cycle_meas*j
In formula, SFN_start1 is measured for the first time for counterpart terminal to be started, and counterpart terminal enters DRX state a later frame
Time point；Cycle_meas is predetermined period；J is period serial number.
Preferably, the uploading instructions include the starting frequency point number for needing counterpart terminal to upload and need on counterpart terminal
The frequency points of biography.
Preferably, the availability according to each frequency point in N number of continuous frequency point is corresponding terminal distribution
Frequency point the following steps are included:
If the availability of each frequency point in N number of continuous frequency point be it is available, determine N number of continuous frequency
The Traffic Channel that the corresponding channel of point can be used as counterpart terminal carries out business transmission；
If having unavailable frequency point in N number of continuous frequency point, and unavailable frequency point is corresponding described N number of continuous
The ratio occupied in frequency point is no more than predetermined ratio, then determines that the corresponding channel of N number of continuous frequency point can be used as correspondence
The Traffic Channel of terminal carries out business transmission；
If having unavailable frequency point in N number of continuous frequency point, and unavailable frequency point is corresponding described N number of continuous
The ratio occupied in frequency point is more than predetermined ratio, then determine the corresponding channel of N number of continuous frequency point cannot function as it is corresponding eventually
The Traffic Channel at end carries out business transmission；
Business transmission is carried out in the Traffic Channel that the corresponding channel of the N number of continuous frequency point can be used as counterpart terminal
When, it is the corresponding channel of terminal distribution.
A kind of base station, the base station include available frequency point searching unit, can distribute frequency point searching unit, uploading instructions generation
Unit and resource allocation unit；
It is described to be used to find one or more available frequency points according to uplink signal-channel quality with frequency point searching unit；
It is described distribute frequency point searching unit for described in frequency point, according to frequency point service condition find 1 or
It is multiple to distribute frequency point；Wherein it is described can distribute frequency point be it is described can in frequency point currently without the frequency point used；
The uploading instructions generation unit is for judging the multiple distribute in frequency point with the presence or absence of N number of continuous frequency
Point issues uploading instructions to corresponding terminal when there are N number of continuous frequency point；
The resource allocation unit is for receiving N number of continuous frequency that counterpart terminal is uploaded according to the uploading instructions
The availability of each frequency point in point, and be corresponding end according to the availability of each frequency point in N number of continuous frequency point
End distribution frequency point.
Preferably, the resource allocation unit includes availability judging unit, and the availability judging unit is for judging
The availability of each frequency point in N number of continuous frequency point whether be it is available, it is each in N number of continuous frequency point
When the availability of frequency point is available, determine that the corresponding channel of N number of continuous frequency point can be used as the business of counterpart terminal
Channel carries out business transmission；
The availability of each frequency point in N number of continuous frequency point is not availability judgement when being available
Unit is also used to judge whether the ratio that unavailable frequency point occupies in corresponding N number of continuous frequency point is more than predetermined ratio
Example, when the ratio that unavailable frequency point occupies in corresponding N number of continuous frequency point is no more than predetermined ratio, described in judgement
The Traffic Channel that the corresponding channel of N number of continuous frequency point can be used as counterpart terminal carries out business transmission；
It is described when the ratio that unavailable frequency point occupies in corresponding N number of continuous frequency point is more than predetermined ratio
Availability judging unit be used to determine the corresponding channel of N number of continuous frequency point cannot function as the Traffic Channel of counterpart terminal into
Industry business transmission；
The resource allocation unit can be used as the business letter of counterpart terminal in the corresponding channel of the N number of continuous frequency point
When road carries out business transmission, for being the corresponding channel of terminal distribution.
A kind of terminal, the terminal include downlink reference signal receiving unit and downlink reference signal processing unit；
The downlink reference signal receiving unit issues downlink reference signal for receiving base station；
The downlink reference signal processing unit is used for periodically to the descending reference on its each business frequency
Signal measures, and calculates the SNR value on each business frequency according to measurement result；For each SNR value, if it is greater than or waits
In predetermined threshold, then the downlink reference signal processing unit determines that its corresponding frequency point is available frequency point, otherwise for can not
With frequency point, and state the uploading instructions that downlink reference signal processing unit is issued according to base station by the availability of corresponding frequency point into
Row uploads.
Preferably, the downlink reference signal processing unit includes grouping subelement and measurement subelement；
The grouping subelement is for being grouped each business frequency of terminal；
The measurement subelement is carried out for every group of business frequency in a cycle after grouping in predetermined point of time
Measurement, wherein the predetermined point of time is calculated using following formula:
T=SFN_start+ (i-1) * num_meas
In formula, at the beginning of SFN_start is first group of business frequency measurement in corresponding period；I=1~(sys_
Freq)/(max_uecapability-2) is grouping serial number, wherein each group includes one or more frequency points, and in every group
Each frequency point measure simultaneously；Num_meas is the downlink ginseng for continuously measuring same business frequency in one cycle
Examine the number of signal；Sys_freq is the business frequency sum used, and max_uecapability is the industry that terminal can be supported
Business frequency point number.
The present invention provides a kind of resource allocation methods based on terminal references signal detection, base station, terminal, the present invention
In, base station notice terminal when business reaches carries out business frequency availability and reports；Base station is according to available and idle schedulable frequency
The case where point, determines that the frequency point ranges that terminal reports, notice terminal carry out business frequency availability in conjunction with the demand bandwidth of terminal
It reports；Base station receives reported result, can be judged with situation according to frequency point, if unavailable frequency point is not present in continuous frequency point, or
The unavailable frequency point of person is less than specified thresholding, then allows to dispatch on counterpart terminal to the corresponding channel of the continuous frequency point.Wherein, originally
Invention carries out the downlink reference signal that base station issues using terminal to parse determining frequency point availability.The present invention can be avoided interference
Caused scheduling of resource is unsuccessful or business efficiency of transmission is low, guarantees terminal transmission quality, improves the use of frequency spectrum resource
Efficiency.Terminal for availability result and reported without periodic report and event, but base station carry out traffic scheduling before,
It is reported according to the range that base station is specified, effectively saves interface-free resources.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the resource allocation methods process based on terminal references signal detection of a preferred embodiment of the invention
Figure；
Fig. 2 is the resource allocation methods process based on terminal references signal detection of another preferred embodiment of the invention
Figure；
Fig. 3 is that the determination of another preferred embodiment of the invention reports the flow chart of range step.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawings and examples.Following embodiment is for illustrating this hair
It is bright, but cannot be used to limit the scope of the invention.
A kind of resource allocation methods based on terminal references signal detection, as shown in Figure 1, the method includes following steps
It is rapid:
S1, one or more available frequency points are found according to uplink signal-channel quality；
S2, it is used in frequency point described, frequency point can be distributed by finding one or more according to frequency point service condition；It is wherein described
Can distribute frequency point be it is described can in frequency point currently without the frequency point used；
S3, judge it is the multiple distribute in frequency point with the presence or absence of N number of continuous frequency point, there are N number of continuous frequency points
When issue uploading instructions to corresponding terminal；Corresponding terminal is according to the uploading instructions by corresponding N number of continuous frequency
The availability of each frequency point in point is uploaded；
It S4, according to the availability of each frequency point in N number of continuous frequency point is corresponding terminal distribution frequency point, i.e. root
Determine whether corresponding N number of continuous frequency point distributes to correspondence according to the availability of each frequency point in N number of continuous frequency point
Terminal.
Preferably, the above method is completed by base station, and is that base station is executed in the service request for receiving terminal.It is preferred that
Ground, the N in N number of continuous frequency point are determined according to the frequency point number of counterpart terminal business demand.
Base station notice terminal when business reaches carries out business frequency availability and reports；Base station is according to available and idle adjustable
The case where spending frequency point determines the frequency point ranges that terminal reports, notice terminal carries out business frequency can in conjunction with the demand bandwidth of terminal
It is reported with property；It is corresponding terminal distribution frequency point that base station, which receives reported result, can be avoided scheduling of resource caused by interference not
Success or business efficiency of transmission are low, guarantee terminal transmission quality, improve the service efficiency of frequency spectrum resource.
Further, the availability of the frequency point is obtained using following step:
Base station issues downlink reference signal；Terminal periodic to the downlink reference signal on its each business frequency
It measures, the SNR value on each business frequency is calculated according to measurement result；For each SNR value, terminal is sentenced as follows
Disconnected: if SNR value is greater than or equal to predetermined threshold, otherwise it is unavailable frequency point that corresponding frequency point, which is available frequency point,.
Terminal judged and stored to the availability of each frequency point under non-traffic state, under service condition without
This operation.And the availability of corresponding frequency point is just uploaded to base station when receiving the uploading instructions that base station issues by terminal, other
Time will not active upload.Wherein, the uploading instructions include the starting frequency point number for needing counterpart terminal to upload and needs pair
The frequency points for answering terminal to upload.Since N number of continuous frequency point that base station determines may be multiple, so in uploading instructions
It needs to include the frequency points for originating frequency point and needing to upload, wherein frequency points are N, can also be greater than N.
Further, after obtaining a frequency point SNR value, accuracy can be improved by the method for taking mean value, specifically: it is right
In the corresponding business frequency of terminal, multiple SNR values are calculated in one cycle, and in corresponding end cycle described in calculating
The average value of multiple SNR values as final SNR value, later using the final SNR value judge its corresponding frequency point can
The property used.
Further, terminal periodic to the downlink reference signal on its each business frequency measure including
Following steps: being grouped each business frequency of terminal, and every group of business frequency in a cycle is in the predetermined time later
Point measures, wherein the predetermined point of time is calculated using following formula:
T=SFN_start+ (i-1) * num_meas
In formula, at the beginning of SFN_start is first group of business frequency measurement in corresponding period；I=1~(sys_
Freq)/(max_uecapability-2) is grouping serial number, wherein each group includes one or more frequency points, and in every group
Each frequency point measure simultaneously；Num_meas is the downlink ginseng for continuously measuring same business frequency in one cycle
Examine the number of signal；Sys_freq is the business frequency sum used, and max_uecapability is the industry that terminal can be supported
Business frequency point number.
It is calculated at the beginning of first group of business frequency measurement in the corresponding period using following formula:
SFN_start=SFN_start1+cycle_meas*j
In formula, SFN_start1 is measured for the first time for counterpart terminal to be started, and counterpart terminal enters DRX state a later frame
Time point；Cycle_meas is predetermined period；J is period serial number.
The above-mentioned measurement to downlink reference signal is also to execute under non-traffic state.
Further, base station is corresponding terminal distribution frequency according to the availability of each frequency point in N number of continuous frequency point
Point the following steps are included:
If the availability of each frequency point in N number of continuous frequency point be it is available, determine N number of continuous frequency
The Traffic Channel that the corresponding channel of point can be used as counterpart terminal carries out business transmission, and by N number of continuous frequency point allocation
It is used to corresponding terminal；If having unavailable frequency point in N number of continuous frequency point, and unavailable frequency point is corresponding described
The ratio occupied in N number of continuous frequency point is no more than predetermined ratio, then determines that the corresponding channel of N number of continuous frequency point can be with
Traffic Channel as counterpart terminal carries out business transmission, and N number of continuous frequency point allocation is used to corresponding terminal；
If having unavailable frequency point in N number of continuous frequency point, and unavailable frequency point accounts in corresponding N number of continuous frequency point
Ratio is more than predetermined ratio, then determines that the corresponding channel of N number of continuous frequency point cannot function as the business of counterpart terminal
Channel carries out business transmission.
The above method is described in detail below with reference to other two embodiment.
Fig. 2 is the resource allocation methods process based on terminal references signal detection of another preferred embodiment of the invention
Figure, this embodiment the following steps are included:
S21, base station send downlink reference signal in each Traffic Channel in system.
Terminal periodic under S22, non-traffic state carries out the inspection of downlink reference signal to Traffic Channel each in system
It surveys, the SNR value on each business frequency is calculated according to downlink reference signal.If SNR value is greater than or equal to predetermined threshold, terminal
Then think undisturbed on the frequency point or channel, business transmission can be normally carried out, which is available frequency point；If SNR value is small
In predetermined threshold, terminal then thinks to be disturbed on the frequency point or channel, cannot proceed normally business transmission, which is can not
Use frequency point.
S23, when base station detects that terminal has uplink service or downlink business to reach, according to each Traffic Channel of detection
The determination of up channel disturbed condition can use frequency point, can distribute frequency point according to the service condition determination of each frequency point, combine terminal
Business demand determine the frequency point ranges that terminal reports, and notify terminal to report in range by DCI (authorization message) mode
The availability of each frequency point.The availability of the correspondence frequency point of record is reported to base station by terminal.
The frequency point that S24, base station are reported according to terminal can use situation, determine the Traffic Channel of scheduling, i.e. frequency point, and by awarding
Power notice is to terminal.Wherein, the available situation for the frequency point in specified range that base station is reported according to terminal, determines this section of channel,
That is frequency point, if can be used as the terminal Traffic Channel carry out business transmission and step specifically:
If the frequency point that S241, terminal report is available, then it is assumed that this section of channel can be used as the business letter of the terminal
Road carries out business transmission；
If having unavailable channel in the frequency point that S242, terminal report, and the ratio that unavailable channel occupies is no more than not
Available threshold M, then it is assumed that this section of channel can also support the terminal to carry out business transmission；
S243, if there is unavailable channel, and the ratio that unavailable channel occupies is more than unavailable threshold value M, then it is assumed that should
Duan Xindao can not support the terminal to carry out business transmission, can not dispatch the terminal, need to wait for after other Traffic Channels discharge again
The secondary judgement for being scheduled resource.
S244, base station are determined after the Traffic Channel of terminal scheduling through authorization notification to terminal, if without schedulable letter
Without issuing a notice, terminal does not receive authorization notification and enters DRX (discontinuous reception) state, continues periodic downlink in road
The measurement of reference signal.
The authorization notification that S25, terminal are sent according to base station jumps to the Traffic Channel of scheduling, the i.e. enterprising industry business of frequency point
Transmission.
The time of measuring of downlink reference signal determines according to the following method in the step S22 of above-described embodiment:
Measurement starting position is in DRX state a later frame in terminal for the first time.
Work as sys_freq > max_uecapbility, then the Traffic Channel measured needs, i.e. frequency point is grouped measurement,
The bandwidth of every group of measurement is max_uecapability Traffic Channel.So in a cycle at the beginning of i-th group of measurement
For SFN_start+ (i-1) * num_meas, wherein SFN_start is the beginning of first group of business frequency measurement in corresponding period
Time, For grouping serial number, each frequency point in every group measures simultaneously；Num_meas is
The number of the downlink reference signal of same business frequency is continuously measured in one cycle；Sys_freq is what system used
Business frequency sum, max_uecapability are the business frequency number that terminal can be supported.The industry that can be supported for terminal
The business number of channel, a channel are used to receive the measurement of this cell and adjacent area, and a channel is for receiving paging and accessing.J-th
The initial time that first group of business frequency of period measures is SFN_start1+cycle_meas*j, and SFN_start1 is pair
It answers terminal to measure for the first time to start, and counterpart terminal enters the time point of DRX state a later frame, i.e. counterpart terminal a cycle
At the beginning of first group of measurement；Cycle_meas is predetermined period；J is period serial number.
In above-mentioned steps S22, due to being carried out continuously the measurement of downlink reference signal to same frequency point, in a week
Multiple SNR values of same frequency point are obtained in phase, then final SNR value the putting down for multiple SNR values for the frequency point that this period obtains
Mean value, result judgement is made mistakes caused by being shaken for elimination due to SNR measurement；Average snr value is recycled to determine corresponding frequency point
Availability.
The period that terminal carries out each Traffic Channel downlink reference signal detection can be configured according to actual use situation.Eventually
End records the available situation of each Traffic Channel, saves newest testing result.
In above-mentioned steps S23, the frequency point ranges that base station determines that terminal reports are, as shown in Figure 3:
The up channel disturbed condition detected first according to base station determines available frequency point from the frequency point that system uses.
It checks the service condition of available frequency point, determines that idle available frequency point, these frequency points are the assignable frequency point of system.
Checking can distribute with the presence or absence of N number of continuous frequency point in frequency point, and wherein N is business needed for the terminal for needing to dispatch
Frequency point number.If it is present this N number of continuous frequency point is the determining range for reporting frequency point, notice terminal reports frequency in range
The availability of point, otherwise not report.
In above-mentioned steps S23, content that DCI (authorization message) includes are as follows:
Start_pos:9bits, the starting frequency point that need to be reported.
Num_pos:7bits, the continuous frequency points that need to be reported.
16 bits are amounted to, are scrambled with C-RNTI.
In above-mentioned steps S23, terminal is given the correct time on base station, and whether the mode of bitmap can be used can be with marking to frequency point
Know, such as " 1 " indicates that frequency point is available, and " 0 " indicates that frequency point is unavailable.
The technical solution provided in above-described embodiment by being periodically detected to the downlink reference signal that base station is sent,
Determine the available situation of each Traffic Channel uplink and downlink channel, base station combines user equipment downlink reference signal testing result and uplink to believe
Road determine as a result, and Traffic Channel service condition determine the resource of terminal scheduling, can be avoided interference caused by scheduling of resource
Unsuccessful or business efficiency of transmission is low, guarantees terminal transmission quality, improves the service efficiency of frequency spectrum resource.In addition, terminal
Result for perception is simultaneously reported without periodic report and event, but before base station carries out traffic scheduling, referred to according to base station
Fixed range is reported, and interface-free resources are effectively saved.
Corresponding to above method there are a kind of base station, the base station includes available frequency point searching unit, can distribute frequency point
Searching unit, uploading instructions generation unit and resource allocation unit；It is described to be used to be believed according to uplink with frequency point searching unit
Road quality finds one or more available frequency points；The frequency point searching unit of distributing described for using in frequency point, according to frequency
Point service condition, which finds one or more, can distribute frequency point；Wherein it is described can distribute frequency point be it is described can in frequency point currently without
The frequency point used；The uploading instructions generation unit is for judging the multiple distribute in frequency point with the presence or absence of N number of continuous
Frequency point issues uploading instructions to corresponding terminal when there are N number of continuous frequency point；The resource allocation unit is for reception pair
The availability for each frequency point in N number of continuous frequency point for answering terminal to be uploaded according to the uploading instructions, and according to the N
The availability of each frequency point in a continuous frequency point is corresponding terminal distribution frequency point.
Further, the resource allocation unit includes availability judging unit, and the availability judging unit is for sentencing
Break each frequency point in N number of continuous frequency point availability whether be it is available, it is each in N number of continuous frequency point
When the availability of a frequency point is available, determine that the corresponding channel of N number of continuous frequency point can be used as the industry of counterpart terminal
Business channel carries out business transmission, and gives corresponding terminal to use N number of continuous frequency point allocation；In N number of continuous frequency point
In the availability of each frequency point be not when being available, the availability judging unit is also used to judge unavailable frequency point right
Whether the ratio occupied in the N number of continuous frequency point answered is more than predetermined ratio, in unavailable frequency point corresponding described N number of
When the ratio occupied in continuous frequency point is no more than predetermined ratio, determine that the corresponding channel of N number of continuous frequency point can be made
Business transmission is carried out for the Traffic Channel of counterpart terminal, and N number of continuous frequency point allocation is used to corresponding terminal；Can not
When being more than predetermined ratio with the ratio that frequency point occupies in corresponding N number of continuous frequency point, the availability judging unit
Business transmission is carried out for determining that the corresponding channel of N number of continuous frequency point cannot function as the Traffic Channel of counterpart terminal, it is N number of
Continuous frequency point cannot distribute to corresponding terminal and use.
Above-mentioned base station is in the service request Shi Caiwei terminal distribution resource for receiving terminal.
Since the process that resource allocation is completed in base station above is corresponding with above method, so no longer being carried out to base station
It repeats.
Corresponding to above method there is also a kind of terminal, the terminal include downlink reference signal receiving unit and under
Row reference signal processing unit；The downlink reference signal receiving unit issues downlink reference signal for receiving base station；It is described
Downlink reference signal processing unit is used to periodically measure the downlink reference signal on its each business frequency,
The SNR value on each business frequency is calculated according to measurement result；For each SNR value, if it is greater than or equal to predetermined threshold,
Then the downlink reference signal processing unit determines that its corresponding frequency point is available frequency point, is otherwise unavailable frequency point, and according to
The availability of corresponding frequency point is uploaded to base station by the uploading instructions that base station issues.
Above-mentioned terminal just judges the availability of each frequency point in non-traffic state, and under the control of the volume of uploading instructions
Just upload the availability of corresponding frequency point.
Above-mentioned terminal further includes jump-transfer unit, and the jump-transfer unit is used to be jumped to according to the frequency point for its distribution corresponding
It works on frequency point.
Further, the downlink reference signal processing unit includes grouping subelement and measurement subelement；Described point
Group subelement is for being grouped each business frequency of terminal；The measurement subelement is for a cycle after grouping
In every group of business frequency measured in predetermined point of time, wherein the predetermined point of time is calculated using following formula:
T=SFN_start+ (i-1) * num_meas
In formula, at the beginning of SFN_start is first group of business frequency measurement in corresponding period；I=1~(sys_
Freq)/(max_uecapability-2) is grouping serial number, wherein each group includes one or more frequency points, and in every group
Each frequency point measure simultaneously；Num_meas is the downlink ginseng for continuously measuring same business frequency in one cycle
Examine the number of signal；Sys_freq is the business frequency sum used, and max_uecapability is the industry that terminal can be supported
Business frequency point number.
Since terminal completion availability judgement above, the process uploaded are corresponding with above method step, so not
Terminal is repeated again.
The above embodiments are only used to illustrate the present invention, rather than limitation of the present invention.Although referring to embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, to technical solution of the present invention carry out it is various combination,
Modification or equivalent replacement should all cover and want in right of the invention without departure from the spirit and scope of technical solution of the present invention
It asks in range.
Claims (8)
1. a kind of resource allocation methods based on terminal references signal detection, which is characterized in that the described method comprises the following steps:
One or more available frequency points are found according to uplink signal-channel quality；
Described in frequency point, frequency point can be distributed by finding one or more according to frequency point service condition；It is wherein described to distribute frequency
Point for it is described can in frequency point currently without the frequency point used；
Judge that the multiple distribute whether there is N number of continuous frequency point in frequency point, is issued when there are N number of continuous frequency point
Teletype command gives corresponding terminal；Corresponding terminal will be each in corresponding N number of continuous frequency point according to the uploading instructions
The availability of a frequency point is uploaded；
It is corresponding terminal distribution frequency point according to the ratio that unavailable frequency point occupies in corresponding N number of continuous frequency point；
N in N number of continuous frequency point is determined according to the frequency point number of counterpart terminal business demand.
2. the method according to claim 1, wherein the method execution in the service request for receiving terminal.
3. the method according to claim 1, wherein the availability of the frequency point is obtained using following step:
Issue downlink reference signal；
Terminal periodic the downlink reference signal on its each business frequency is measured, is calculated according to measurement result
SNR value on each business frequency；
For each SNR value, if it is greater than or equal to predetermined threshold, corresponding frequency point is available frequency point, otherwise for not
Frequency point can be used.
4. according to the method described in claim 3, it is characterized in that, before judging availability for each SNR value, the side
Method further includes the steps that calculating the SNR value average value:
A business frequency corresponding for terminal calculates multiple SNR values in one cycle, and counts in corresponding end cycle
The average value of the multiple SNR value is calculated as final SNR value, judges its corresponding frequency using the final SNR value later
The availability of point.
5. the method according to claim 1, wherein the uploading instructions include for needing counterpart terminal to upload
Beginning frequency point number and the frequency points for needing counterpart terminal to upload.
6. the method according to claim 1, wherein the unavailable frequency point is corresponding according to N number of company
The ratio occupied in continuous frequency point be corresponding terminal distribution frequency point the following steps are included:
If the availability of each frequency point in N number of continuous frequency point be it is available, determine N number of continuous frequency point pair
The channel answered can be used as counterpart terminal Traffic Channel carry out business transmission, and will N number of continuous frequency point allocation give pair
The terminal answered uses；
If having unavailable frequency point in N number of continuous frequency point, and unavailable frequency point is in corresponding N number of continuous frequency point
The ratio of middle occupancy is no more than predetermined ratio, then determines that the corresponding channel of N number of continuous frequency point can be used as counterpart terminal
Traffic Channel carry out business transmission, and will N number of continuous frequency point allocation give corresponding terminal use；
If having unavailable frequency point in N number of continuous frequency point, and unavailable frequency point is in corresponding N number of continuous frequency point
The ratio of middle occupancy is more than predetermined ratio, then determines that the corresponding channel of N number of continuous frequency point cannot function as counterpart terminal
Traffic Channel carries out business transmission.
7. a kind of base station, which is characterized in that the base station include available frequency point searching unit, can distribute frequency point searching unit, on
Teletype command generation unit and resource allocation unit；
It is described to be used to find one or more available frequency points according to uplink signal-channel quality with frequency point searching unit；
The frequency point searching unit of distributing is for, in frequency point, finding one or more according to frequency point service condition described
Frequency point can be distributed；Wherein it is described can distribute frequency point be it is described can in frequency point currently without the frequency point used；
The uploading instructions generation unit is for judging the multiple distribute in frequency point with the presence or absence of N number of continuous frequency point, In
There are uploading instructions are issued when N number of continuous frequency point to corresponding terminal；
The resource allocation unit is used to receive in N number of continuous frequency point that counterpart terminal is uploaded according to the uploading instructions
Each frequency point availability, and the ratio occupied in corresponding N number of continuous frequency point according to unavailable frequency point is pair
The terminal distribution frequency point answered；
N in N number of continuous frequency point is determined according to the frequency point number of counterpart terminal business demand.
8. base station according to claim 7, which is characterized in that the resource allocation unit includes availability judging unit,
The availability judging unit be used to judge each frequency point in N number of continuous frequency point availability whether be it is available,
When the availability of each frequency point in N number of continuous frequency point is available, determine that N number of continuous frequency point is corresponding
The Traffic Channel that channel can be used as counterpart terminal carries out business transmission, and by N number of continuous frequency point allocation to corresponding
Terminal uses；
The availability of each frequency point in N number of continuous frequency point is not availability judging unit when being available
Whether the ratio for being also used to judge that unavailable frequency point occupies in corresponding N number of continuous frequency point is more than predetermined ratio, In
When the ratio that unavailable frequency point occupies in corresponding N number of continuous frequency point is no more than predetermined ratio, N number of company is determined
The Traffic Channel that the corresponding channel of continuous frequency point can be used as counterpart terminal carries out business transmission, and by N number of continuous frequency
Point is distributed to corresponding terminal and is used；
It is described to use when the ratio that unavailable frequency point occupies in corresponding N number of continuous frequency point is more than predetermined ratio
Property judging unit be used to determine that the corresponding channel of N number of continuous frequency point to cannot function as the Traffic Channel of counterpart terminal and carry out industry
Business transmission.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220708A (en) * | 2012-01-18 | 2013-07-24 | 中兴通讯股份有限公司 | Method, device and system for measurement report of long-term evolution frequency points |
| CN104796939A (en) * | 2014-01-17 | 2015-07-22 | 普天信息技术有限公司 | Base station spectrum sensing method, device, terminal spectrum sensing method and device |
| CN105024785A (en) * | 2014-04-30 | 2015-11-04 | 普天信息技术有限公司 | Method and system of determining downlink MCS |
| US9525497B2 (en) * | 2014-05-29 | 2016-12-20 | International Business Machines Corporation | Interference processing in wireless communication |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220708A (en) * | 2012-01-18 | 2013-07-24 | 中兴通讯股份有限公司 | Method, device and system for measurement report of long-term evolution frequency points |
| CN104796939A (en) * | 2014-01-17 | 2015-07-22 | 普天信息技术有限公司 | Base station spectrum sensing method, device, terminal spectrum sensing method and device |
| CN105024785A (en) * | 2014-04-30 | 2015-11-04 | 普天信息技术有限公司 | Method and system of determining downlink MCS |
| US9525497B2 (en) * | 2014-05-29 | 2016-12-20 | International Business Machines Corporation | Interference processing in wireless communication |
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