CN106856628A - A kind of RACH suppresses the method and device of empty inspection - Google Patents
A kind of RACH suppresses the method and device of empty inspection Download PDFInfo
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Abstract
The present invention relates to communication technical field, the method and device that a kind of RACH suppresses empty inspection is disclosed, the method includes：Based on Physical Random Access Channel PRACH configuration informations, the first position of the first frequency domain resource of PRACH distribution is obtained；Determine that subsequent time up-link UL subframe needs the Physical Uplink Shared Channel PUSCH service dispatching informations of scheduling, history signal to noise ratio SINR information of scheduling PUSCH business each terminal UE before current time in setting time section, the SINR average values of each UE according to the SINR information determines are judged according to the service dispatching information；According to the corresponding SINR average values of described each UE and the first position, each UE for described in distributes the second frequency domain resource；Wherein, when the SINR average values corresponding to a UE are more than the distance between position and first position of the distance between the SINR average values corresponding to the 2nd UE, the then position and first position of the frequency domain resource being assigned to corresponding to the UE value more than the frequency domain resource being assigned to corresponding to the 2nd UE value.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of RACH suppress empty inspection method and
Device.
Background technology
In time division duplex (Time Division Duplexing, abbreviation TDD) system, to improve up appearance
Amount, it is necessary to maximally utilize up all Resource Block (Resource Block, abbreviation RB) as far as possible
Resource, therefore Physical Uplink Shared Channel (Physical Uplink Shared are needed in some scenarios
Channel, abbreviation PUSCH) Channel Sharing Physical Random Access Channel (Physical Random Access
Channel, abbreviation PRACH) channel frequency domain resource；Or, in frequency domain shared by PRACH channels
The neighbouring RB of resource sends the business of PUSCH, but under the scene of both scheduling of resource, holds very much
Easily cause empty inspection probability too high (because signal to noise ratio (the Signal to Interference plus of PUSCH business
Noise Ratio, abbreviation SINR) it is bigger, the probability of void inspection is bigger；And above two scheduling of resource
Scene can all cause the SINR of PUSCH business to increase).
In extensive multiple-input and multiple-output (Massive Multiple-Input Multiple-Output, abbreviation
Massive MIMO) in system, because the port number for designing is a lot, antenna number is more, for it is up come
Say that antenna diversity gain is higher, SINR is higher for respective base station receiving terminal, and due to PUSCH signal energies
There is leakage on each antenna, correlation strengthens so as to the probability of empty inspection can be caused to increase between result in antenna,
If under the scene of above two scheduling of resource, the empty inspection of PRACH channels in Massive mimo systems
Probability can be much higher compared to non-Massive mimo systems.
The content of the invention
The present invention provides the method and device that a kind of RACH suppresses empty inspection, solves existing Massive
In mimo system, the excessive problem of the empty inspection probability of PRACH channels.
The embodiment of the present invention provides a kind of method that RACH suppresses empty inspection, and the method includes：
Based on Physical Random Access Channel PRACH configuration informations, the first of the PRACH distribution is obtained
The first position of frequency domain resource；
Determine that subsequent time up-link UL subframe needs the Physical Uplink Shared Channel PUSCH industry of scheduling
Business schedule information, judges scheduling PUSCH business each terminal UE current according to the service dispatching information
History signal to noise ratio SINR information before moment in setting time section, according to the SINR information determines
The SINR average values of each UE；
Each UE according to the corresponding SINR average values of described each UE and the first position are
Distribute the second frequency domain resource；Wherein, when the SINR average values corresponding to a UE are more than the 2nd UE institutes
Corresponding SINR average values, then the position of the frequency domain resource being assigned to corresponding to a UE with it is described
Position of the distance between first position value more than the frequency domain resource being assigned to corresponding to the 2nd UE and institute
State the distance between first position value.
Optionally, principle is selected according to frequency, send Resource Block RB positions that PUSCH business distributed with
Spacing distance between the RB positions of PRACH channel default configurations is less than setting value, and disappears in system
The transmission cycle of SIB2 is ceased, according to the corresponding SINR average values of described each UE and described first
Position is that described each UE distributes the second frequency domain resource, is also included：
The position of the first frequency domain resource that the PRACH is distributed is adjusted according to default rule, so that institute
The spacing distance value between the corresponding second place of the second frequency domain resource and the first position is stated more than adjustment
The distance between the as described before second place and described first position.
Optionally, it is institute according to the corresponding SINR average values of described each UE and the first position
State each UE to distribute after the second frequency domain resource, the method is further included：
Based on PRACH configuration informations and PUSCH service dispatching informations, the PRACH distribution is determined
The first frequency domain resource and the PUSCH scheduling the second frequency domain resource between spacing distance less than setting
Threshold value, then calculate the SINR on the second frequency domain resource correspondence RB；
Predetermined threshold value according to the empty inspections of a SINR and PRACH is compared, according to comparing knot
The empty inspection suppression threshold value that fruit carries out empty inspection to first frequency domain resource and second frequency domain resource is carried out
Adjustment.
Optionally, empty inspection is carried out to first frequency domain resource and second frequency domain resource according to comparative result
Empty inspection suppression threshold value be adjusted including：
First SINR is more than the empty default minimum thresholds examined of PRACH and less than default highest thresholding
Value, then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to described the
One frequency domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
First SINR is more than the default highest threshold value, then the signal to being transmitted by PRACH
Down-sampled before processing, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
The embodiment of the present invention also provides the method that another RACH suppresses empty inspection, and the method includes
Based on Physical Random Access Channel PRACH configuration informations, the first frequency domain of PRACH distribution is determined
Resource；
Determine that up-link UL subframe needs the second of Physical Uplink Shared Channel PUSCH scheduling of scheduling
Frequency domain resource；
When the spacing distance between first frequency domain resource and second frequency domain resource is less than given threshold,
Then calculate the signal to noise ratio SINR on the second frequency domain resource correspondence RB；
Predetermined threshold value according to the empty inspections of the SINR and PRACH is compared, according to comparative result pair
The empty inspection suppression threshold value that first frequency domain resource and second frequency domain resource carry out empty inspection is adjusted.
Optionally, empty inspection is carried out to first frequency domain resource and second frequency domain resource according to comparative result
Empty inspection suppression threshold value be adjusted including：
The SINR is more than the default minimum threshold of the empty inspections of PRACH and less than default highest threshold value,
Then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to the described first frequency
Domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
The SINR is more than the default highest threshold value, then to the time domain by PRACH transmissions
The down-sampled before processing of signal, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
The embodiment of the present invention provides the device that a kind of RACH suppresses empty inspection, and the device includes：
Resource location determining module, for based on Physical Random Access Channel PRACH configuration informations, obtaining
The first position of the first frequency domain resource of the PRACH distribution；
Signal to noise ratio detection module, for determining that subsequent time up-link UL subframe needs scheduling physically
Row shared channel PUSCH service dispatching informations, scheduling PUSCH industry is judged according to the service dispatching information
History signal to noise ratio SINR information of each terminal UE of being engaged in before current time in setting time section, according to
The SINR information determines the SINR average values of each UE；
Resource configuration module, for according to the corresponding SINR average values of each UE and described the
One position is that described each UE distributes the second frequency domain resource；Wherein, as the SINR corresponding to a UE
Average value is then assigned to more than the SINR average values corresponding to the 2nd UE corresponding to a UE
The distance between the position of frequency domain resource and first position value is assigned to more than corresponding to the 2nd UE
The distance between position and the first position of frequency domain resource value.
Optionally, when principle is selected according to frequency, send Resource Block RB positions that PUSCH business distributed with
Spacing distance between the RB positions of PRACH channel default configurations is less than setting value, and disappears in system
The transmission cycle of SIB2 is ceased, then the resource configuration module is additionally operable to according to default rule adjustment
The position of the first frequency domain resource of PRACH distribution so that the corresponding second place of second frequency domain resource
It is more than the adjustment as described before second place with described first with the spacing distance value between the first position
The distance between put.
Optionally, the device also includes：
Void inspection adjusting module, for based on PRACH configuration informations and PUSCH service dispatching informations, really
Between first frequency domain resource and the second frequency domain resource of PUSCH scheduling of the fixed PRACH distribution
Spacing distance be less than given threshold, then calculate the second frequency domain resource correspondence RB on a SINR；Root
It is compared according to the predetermined threshold value of the empty inspections of a SINR and PRACH, according to comparative result to institute
State the first frequency domain resource and second frequency domain resource carries out the empty inspection suppression threshold value of empty inspection and is adjusted.
Optionally, the empty inspection adjusting module specifically for：
When a SINR is more than the default minimum threshold of the empty inspections of PRACH and less than default most wealthy family
Limit value, then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to described
First frequency domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
When a SINR is more than the default highest threshold value, the then letter to being transmitted by PRACH
Number down-sampled before processing, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
The embodiment of the present invention also provides the device that another RACH suppresses empty inspection, and the device includes
Resource location determining module, for based on Physical Random Access Channel PRACH configuration informations, it is determined that
First frequency domain resource of PRACH distribution；Determine that up-link UL subframe needs the physical uplink of scheduling to be total to
Enjoy the second frequency domain resource of channel PUSCH scheduling；
Signal to noise ratio detection module, between first frequency domain resource and second frequency domain resource
Gauge then calculates the signal to noise ratio SINR on the second frequency domain resource correspondence RB from less than given threshold；
Thresholding adjusting module, for being compared according to the predetermined threshold value of the empty inspections of the SINR and PRACH
Compared with the void that empty inspection is carried out to first frequency domain resource and second frequency domain resource according to comparative result is examined and pressed down
Threshold value processed is adjusted.
Optionally, thresholding adjusting module is default minimum more than the empty inspections of PRACH specifically for the SINR
Threshold value and less than default highest threshold value, then according to the segmentation of default SINR grades and false alarm rejection thresholding
Corresponding relation, heighten the empty inspection suppression that empty inspection is carried out to first frequency domain resource and second frequency domain resource
Threshold value processed；Or the SINR is more than the default highest threshold value, then to by PRACH channels
The down-sampled before processing of time-domain signal of transmission, is believed the PRACH time domains by N ranks equal-ripple filter
Number processed.
One or two in above-mentioned technical proposal, at least has the following technical effect that：
Method and apparatus provided in an embodiment of the present invention, under the network scenarios for many UE occur, by SINR
The PUSCH traffic schedulings of smaller UE are provided to the channel that PRACH is neighbouring or PRACH has been used
On source, even if so needing to use PRACH neighbouring or PRACH has used that (i.e. same resource is overlapped
Use) channel resource RB, due to neighbouring or to overlap the corresponding SINR of upper PUSCH business smaller,
The PUSCH signals that PRACH is remained after down-sampled are smaller, so that the empty inspections of PRACH
Probability reduction.
Brief description of the drawings
Fig. 1 is that the embodiment of the present invention one provides the method flow signal that a kind of RACH suppresses empty inspection
Figure；
Fig. 2 is that the embodiment of the present invention two provides the method flow signal that a kind of RACH suppresses empty inspection
Figure；
Fig. 3 is that the embodiment of the present invention three provides the method flow signal that a kind of RACH suppresses empty inspection
Figure；
Fig. 4 is that the embodiment of the present invention three provides the method flow signal that a kind of RACH suppresses empty inspection
Figure；
A kind of Fig. 5 structural representations of the device of the empty inspection of RACH suppression for the embodiment of the present invention is provided
Figure；
Fig. 6 is the knot of the device that another RACH provided in an embodiment of the present invention suppresses empty inspection
Structure schematic diagram.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described to the technical scheme in the embodiment of the present invention.
Embodiment one
As shown in figure 1, the embodiment of the present invention provides a kind of method that RACH suppresses empty inspection, the party
Method includes：
Step 101, based on Physical Random Access Channel PRACH configuration informations, obtains the PRACH
The first position of the first frequency domain resource of distribution；
Step 102, determines that subsequent time up-link UL subframe needs the Physical Uplink Shared Channel of scheduling
PUSCH service dispatching informations, according to each terminal of service dispatching information judgement scheduling PUSCH business
History signal to noise ratio SINR informations of the UE before current time in setting time section, believes according to the SINR
Breath determines the SINR average values of each UE；
Step 103, be according to the corresponding SINR average values of described each UE and the first position
Described each UE distributes the second frequency domain resource；Wherein, when the SINR average values corresponding to a UE are big
In the SINR average values corresponding to the 2nd UE, the then frequency domain resource being assigned to corresponding to a UE
The distance between position and the first position value provided more than the frequency domain being assigned to corresponding to the 2nd UE
The distance between the position in source and described first position value.
Wherein, when the SINR average values corresponding to a UE are put down more than the SINR corresponding to the 2nd UE
Average, then between the position and the first position of the frequency domain resource being assigned to corresponding to a UE
Distance value is more than between the position and the first position of the frequency domain resource being assigned to corresponding to the 2nd UE
Distance value (the spacing distance value between the corresponding second place of i.e. described second frequency domain resource and first position
Be directly proportional to the SINR average values) implement and can be：
When the SINR average values of some UE are more than empty inspection SINR minimum thresholds, then by UE correspondences
Frequency domain resource be arranged far from the frequency domain position of PRACH channels；
If the SINR average values of some UE, can be by the UE less than empty inspection SINR minimum thresholds
Corresponding frequency domain resource is layer adjacent to PRACH channel frequencies position；
If the SINR average values of a certain UE are minimum and less than void inspection SINR minimum thresholds, can be by
The corresponding frequency domain resources of the UE are Chong Die with PRACH resources.
In this embodiment, if selecting principle according to frequency, the Resource Block that PUSCH business is distributed is sent
Spacing distance between the RB positions of RB positions and PRACH channel default configurations is less than setting value, and
And in the transmission cycle of system message 2 (SIB2), in order to reach second frequency domain resource corresponding second
Spacing distance value between position and first position is directly proportional to the SINR average values, can also adjust
The position of one frequency domain resource, then implementing to be：
The position of the first frequency domain resource that the PRACH is distributed is adjusted according to default rule so that described
Spacing distance value between the corresponding second place of second frequency domain resource and the first position is more than adjustment
The distance between the preceding second place and described first position.
Because the frequency domain resource of PUSCH Channel Sharing PRACH channels；Or, in PRACH channels
The neighbouring RB of shared frequency domain resource sends the business of PUSCH, can all cause empty inspection probability to increase, base
In the case of above-described embodiment, in order to avoid resource-sharing causes empty inspection probability to increase, the embodiment of the present invention
The method for being provided, is adjusted always according to the SINR for detecting to the threshold value of empty inspection, and implementing can
To be：
Based on PRACH configuration informations and PUSCH service dispatching informations, the PRACH distribution is determined
The first frequency domain resource and the PUSCH scheduling the second frequency domain resource between spacing distance less than setting
Threshold value, then calculate the SINR on the second frequency domain resource correspondence RB；
Predetermined threshold value according to the empty inspections of a SINR and PRACH is compared, according to comparing knot
The empty inspection suppression threshold value that fruit carries out empty inspection to first frequency domain resource and second frequency domain resource is carried out
Adjustment.
Wherein, empty inspection is carried out to first frequency domain resource and second frequency domain resource according to comparative result
Void inspection suppression threshold value be adjusted including：
First SINR is more than the empty default minimum thresholds examined of PRACH and less than default highest thresholding
Value, then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to described the
One frequency domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
First SINR is more than the default highest threshold value, then the signal to being transmitted by PRACH
Down-sampled before processing, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
Embodiment two
As shown in Fig. 2 suppressing to a kind of RACH of the embodiment of the present invention below in conjunction with specific example
The method of void inspection is further described, in this embodiment many UE scheduling, and UE is evenly distributed on distance
Midpoint, implementing to be：
Step 201, obtaining the configuration information and subsequent time up-link UL subframe of PRACH needs to adjust
The schedule information of the PUSCH business of degree；
Step 202, obtains the history SINR records of PUSCH business corresponding UEs；
Step 203, according to the history SINR records for obtaining, judges the UE of scheduling PUSCH business one by one
RB grades of average SINR whether more than empty inspection SINR minimum thresholds, be if it is transferred to step 204；
Otherwise it is transferred to step 205；
Step 204, SINR is dispatched to away from PRACH letters more than the UE of empty inspection SINR minimum thresholds
The frequency domain position in road, and terminate scheduling flow；
Step 205, detects whether frequency selection scheduling demand, and work as the RB that transmission PUSCH business is distributed
Cycle when resource necessarily needs neighbouring with the RB resources of PRACH channel default configurations is SIB2 transmissions
Cycle, if so, being then transferred to step 206；Otherwise it is transferred to step 207；
Step 206, adjusts the frequency domain detection original position of PRACH, it is to avoid the frequency domain resource of PRACH
Neighbouring with the frequency domain resource of PUSCH business or Chong Die distribution；
Step 207, the frequency of or this lap position distribution PUSCH business neighbouring in PRACH frequency domain resources
Domain resource.
By the implementation of this flexible dispatching provided in an embodiment of the present invention, in many UE of appearance, and need
To utilize PRACH neighbouring or overlap during using PRACH channel resource RB, due to neighbouring or heavy
Corresponding SINR is smaller for stacked on PUSCH business, the PUSCH that PRACH is remained after down-sampled
Signal is smaller such that it is able to the effective probability for lowering the empty inspections of PRACH.
Embodiment three
As shown in figure 3, the embodiment of the present invention also provides the method that another RACH suppresses empty inspection,
The method includes
Step 301, based on Physical Random Access Channel PRACH configuration informations, determines that PRACH is distributed
The first frequency domain resource；
Step 302, determines that up-link UL subframe needs the Physical Uplink Shared Channel PUSCH of scheduling
Second frequency domain resource of scheduling；
Step 303, when the spacing distance between first frequency domain resource and second frequency domain resource is less than
Given threshold, then calculate the signal to noise ratio SINR on the second frequency domain resource correspondence RB；
Step 304, the predetermined threshold value according to the empty inspections of the SINR and PRACH is compared, according to
Comparative result carries out the empty inspection suppression threshold of empty inspection to first frequency domain resource and second frequency domain resource
Value is adjusted.
Optionally, empty inspection is carried out to first frequency domain resource and second frequency domain resource according to comparative result
The specific implementation that is adjusted of empty inspection suppression threshold value include：
The SINR is more than the default minimum threshold of the empty inspections of PRACH and less than default highest threshold value,
Then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to the described first frequency
Domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
The SINR is more than the default highest threshold value, then to the time domain by PRACH transmissions
The down-sampled before processing of signal, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
Example IV
As shown in figure 4, neighbouring in PRACH channels to the embodiment of the present invention below in conjunction with specific example
Frequency domain resource scheduling PUSCH business, and PUSCH business RB SINR be less than 20db when, pass through
Dynamic sets the empty inspection of false alarm rejection relative threshold reduction, and its process step is：
Step 401, obtains PRACH configuration informations and PUSCH service dispatching informations；
Step 402, according to the PRACH configuration informations and PUSCH service dispatching informations, it is determined that
Whether the neighbouring RB of PRACH channels or the RB for having used distribute to PUSCH uses, if it is,
Then it is transferred to step 403；Otherwise it is transferred to step 409；
Step 403, calculates the neighbouring of PRACH channels or overlaps the SINR on the RB for using by PUSCH；
Step 404, whether the SINR that judgement is calculated is more than the empty minimum thresholds examined of PRACH
(SINR_Low) and less than the highest thresholding (SINR_Highdb) of the empty inspections of PRACH, if it is,
It is transferred to step 406；Otherwise it is transferred to step 405；
Step 405, if the SINR being calculated is less than the minimum threshold (SINR_Low) of the empty inspections of PRACH,
Think that PUSCH leakage signals do not influence the detection of PRACH, the false alarm rejection door of PRACH is not adjusted
Limit value, and it is transferred to step 407；
Step 406, according to the SINR being calculated, inquires about the door of the empty inspections of default SINR and PRACH
Limit value mapping table, obtains the corresponding threshold values of the SINR, and adjust original PRACH with the threshold value
The threshold value of void inspection；
For example：According to the corresponding false alarm rejection thresholding of different SINR grades segment lookups.For example there is 3db
PUSCH when disturbing, dynamic improves false alarm rejection thresholding, and empty inspection rate is reduced to 0.01% from 0.42%.
Whether step 407, the SINR that judgement is calculated is more than the highest thresholding of the empty inspections of PRACH, is
Then it is transferred to step 409；Otherwise it is transferred to step 408；
Step 408, if SINR is more than the highest thresholding (SINR_Highdb) of the empty inspections of PRACH, in drop
Increase one-level filtering before sampling；
Increased the equal-ripple filter of N ranks before down-sampled, N ranks set different according to different SIN,
When for example pusch signals have Ydb, to it is original filtering it is down-sampled after 1536 time domain datas use 95
After rank equal-ripple filter, empty inspection rate also simply falls below 0.05% or so from 1.3%.
Step 409, PRACH detection process.
Embodiment five
As shown in figure 5, the embodiment of the present invention provides the device that a kind of RACH suppresses empty inspection, the dress
Put and specifically include：
Resource location determining module 501, for based on Physical Random Access Channel PRACH configuration informations,
Obtain the first position of the first frequency domain resource of the PRACH distribution；
Signal to noise ratio detection module 502, for determining that subsequent time up-link UL subframe needs the thing of scheduling
Reason Uplink Shared Channel PUSCH service dispatching informations, scheduling PUSCH is judged according to the service dispatching information
The history signal to noise ratio SINR information of business each terminal UE before current time in setting time section, root
The SINR average values of each UE are determined according to the SINR information；
Resource configuration module 503, for according to the corresponding SINR average values of each UE and institute
It is that described each UE distributes the second frequency domain resource to state first position；Wherein, as the SINR corresponding to a UE
Average value is then assigned to more than the SINR average values corresponding to the 2nd UE corresponding to a UE
The distance between the position of frequency domain resource and first position value is assigned to more than corresponding to the 2nd UE
The distance between position and the first position of frequency domain resource value.
In this embodiment, when principle is selected according to frequency, the Resource Block RB that PUSCH business is distributed is sent
Spacing distance between the RB positions of position and PRACH channel default configurations is less than setting value, and
The transmission cycle of system message 2 (SIB2), then：
Resource configuration module 503 is additionally operable to adjust the first frequency that the PRACH is distributed according to default rule
The position of domain resource, so that between the corresponding second place of the second frequency domain resource and the first position
Spacing distance value more than the distance between adjustment the as described before second place and described first position.
Further, the device also includes：
Void inspection adjusting module, for based on PRACH configuration informations and PUSCH service dispatching informations, really
Between first frequency domain resource and the second frequency domain resource of PUSCH scheduling of the fixed PRACH distribution
Spacing distance be less than given threshold, then calculate the second frequency domain resource correspondence RB on a SINR；Root
It is compared according to the predetermined threshold value of the empty inspections of a SINR and PRACH, according to comparative result to institute
State the first frequency domain resource and second frequency domain resource carries out the empty inspection suppression threshold value of empty inspection and is adjusted.
Wherein, the void inspection adjusting module specifically for：
When a SINR is more than the default minimum threshold of the empty inspections of PRACH and less than default most wealthy family
Limit value, then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to described
First frequency domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
When a SINR is more than the default highest threshold value, the then letter to being transmitted by PRACH
Number down-sampled before processing, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
Embodiment six
As shown in fig. 6, the embodiment of the present invention also provides the device that another RACH suppresses empty inspection,
The device includes
Resource location determining module 601, for based on Physical Random Access Channel PRACH configuration informations,
Determine the first frequency domain resource of PRACH distribution；Determine that up-link UL subframe needs scheduling physically
Second frequency domain resource of row shared channel PUSCH scheduling；
Signal to noise ratio detection module 602, for when between first frequency domain resource and second frequency domain resource
Spacing distance be less than given threshold, then calculate the second frequency domain resource correspondence RB on signal to noise ratio SINR；
Thresholding adjusting module 603, for being entered according to the predetermined threshold value of the empty inspections of the SINR and PRACH
Row compares, and carries out the void of empty inspection to first frequency domain resource and second frequency domain resource according to comparative result
Inspection suppression threshold value is adjusted.
Optionally, the thresholding adjusting module 603 is pre- more than the empty inspections of PRACH specifically for the SINR
If minimum threshold and less than default highest threshold value, then according to the segmentation of default SINR grades and false-alarm suppression
The corresponding relation of thresholding processed, heighten carries out empty inspection to first frequency domain resource and second frequency domain resource
Void inspection suppression threshold value；Or the SINR is more than the default highest threshold value, then to by PRACH
The down-sampled before processing of time-domain signal of transmission, during by N ranks equal-ripple filter to the PRACH
Domain signal is processed.
Said one or multiple technical schemes in the embodiment of the present application, at least have the following technical effect that：
Method and apparatus provided in an embodiment of the present invention, under the network scenarios for many UE occur, by SINR
The PUSCH traffic schedulings of smaller UE are provided to the channel that PRACH is neighbouring or PRACH has been used
On source, even if so needing to use PRACH neighbouring or PRACH has used that (i.e. same resource is overlapped
Use) channel resource RB, due to neighbouring or to overlap the corresponding SINR of upper PUSCH business smaller,
The PUSCH signals that PRACH is remained after down-sampled are smaller, so that the empty inspections of PRACH
Probability reduction.
In addition, by dynamic adjustment false alarm rejection thresholding, occurring utilizing PRACH neighbouring or PRACH
When having used channel resource RB to send the scheduling scenario of PUSCH business, in the range of certain SINR,
Empty inspection rate can be substantially reduced.
By increasing one-level filtering process, can neighbouring using PRACH or PRACH have been used occurring
When channel resource RB sends the scheduling scenario of PUSCH business, in the PUSCH signals for remaining more than one
After determining SINR, the influence that SINR is detected to PRACH is removed by filtering process.
Obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment for obtaining, belongs to the scope of protection of the invention.
Claims (12)
1. a kind of method that RACH suppresses empty inspection, it is characterised in that the method includes：
Based on Physical Random Access Channel PRACH configuration informations, obtain that the PRACH is assigned to the
The first position of one frequency domain resource；
Determine that subsequent time up-link UL subframe needs the Physical Uplink Shared Channel PUSCH industry of scheduling
Business schedule information, according to the service dispatching information, judges that each terminal UE of scheduling PUSCH business exists
History signal to noise ratio SINR information before current time in setting time section, determines according to the SINR information
The SINR average values of each UE；
Each UE according to the corresponding SINR average values of described each UE and the first position are
Distribute the second frequency domain resource；Wherein, when the SINR average values corresponding to a UE are more than the 2nd UE institutes
Corresponding SINR average values, then the position of the frequency domain resource being assigned to corresponding to a UE with it is described
Position of the distance between first position value more than the frequency domain resource being assigned to corresponding to the 2nd UE and institute
State the distance between first position value.
2. the method for claim 1, it is characterised in that also include：
Principle is selected according to frequency, Resource Block RB positions and PRACH letters that PUSCH business is distributed is sent
Spacing distance between the RB positions of road default configuration is less than setting value, and system message SIB2's
The transmission cycle；
The position of the first frequency domain resource that the PRACH is distributed is adjusted according to default rule so that described
Spacing distance value between the corresponding second place of second frequency domain resource and the first position is more than adjustment
The distance between the preceding second place and described first position.
3. method as claimed in claim 1 or 2, it is characterised in that according to described each UE correspondences
The SINR average values and the first position be that described each UE is distributed after the second frequency domain resource,
The method is further included：
Based on PRACH configuration informations and PUSCH service dispatching informations, the PRACH distribution is determined
The first frequency domain resource and the PUSCH scheduling the second frequency domain resource between spacing distance less than setting
Threshold value, then calculate the SINR on the second frequency domain resource correspondence RB；
Predetermined threshold value according to the empty inspections of a SINR and PRACH is compared, according to comparing knot
The empty inspection suppression threshold value that fruit carries out empty inspection to first frequency domain resource and second frequency domain resource is carried out
Adjustment.
4. method as claimed in claim 3, it is characterised in that according to comparative result to the described first frequency
Domain resource and second frequency domain resource carry out empty inspection empty inspection suppression threshold value be adjusted including：
First SINR is more than the empty default minimum thresholds examined of PRACH and less than default highest thresholding
Value, then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to described the
One frequency domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
First SINR is more than the default highest threshold value, then the signal to being transmitted by PRACH
Down-sampled before processing, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
5. a kind of method that RACH suppresses empty inspection, it is characterised in that the method includes
Based on Physical Random Access Channel PRACH configuration informations, the first frequency domain of PRACH distribution is determined
Resource；
Determine that up-link UL subframe needs the second of Physical Uplink Shared Channel PUSCH scheduling of scheduling
Frequency domain resource；
When the spacing distance between first frequency domain resource and second frequency domain resource is less than given threshold,
Then calculate the signal to noise ratio SINR on the second frequency domain resource correspondence RB；
Predetermined threshold value according to the empty inspections of the SINR and PRACH is compared, according to comparative result pair
The empty inspection suppression threshold value that first frequency domain resource and second frequency domain resource carry out empty inspection is adjusted.
6. method as claimed in claim 5, it is characterised in that according to comparative result to the described first frequency
Domain resource and second frequency domain resource carry out empty inspection empty inspection suppression threshold value be adjusted including：
The SINR is more than the default minimum threshold of the empty inspections of PRACH and less than default highest threshold value,
Then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to the described first frequency
Domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
The SINR is more than the default highest threshold value, then to the time domain by PRACH transmissions
The down-sampled before processing of signal, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
7. a kind of RACH suppresses the device of empty inspection, it is characterised in that the device includes：
Resource location determining module, for based on Physical Random Access Channel PRACH configuration informations, obtaining
The first position of the first frequency domain resource of the PRACH distribution；
Signal to noise ratio detection module, for determining that subsequent time up-link UL subframe needs scheduling physically
Row shared channel PUSCH service dispatching informations, scheduling PUSCH industry is judged according to the service dispatching information
History signal to noise ratio SINR information of each terminal UE of being engaged in before current time in setting time section, according to
The SINR information determines the SINR average values of each UE；
Resource configuration module, for according to the corresponding SINR average values of each UE and described the
One position is that described each UE distributes the second frequency domain resource；Wherein, as the SINR corresponding to a UE
Average value is then assigned to more than the SINR average values corresponding to the 2nd UE corresponding to a UE
The distance between the position of frequency domain resource and first position value is assigned to more than corresponding to the 2nd UE
The distance between position and the first position of frequency domain resource value.
8. device as claimed in claim 7, it is characterised in that when principle is selected according to frequency, send PUSCH
Interval between Resource Block RB positions that business is distributed and the RB positions of PRACH channel default configurations
Distance is less than setting value, and in the transmission cycle of system message SIB2, then the resource configuration module is also
Position for adjusting the first frequency domain resource that the PRACH is distributed according to default rule so that described
Spacing distance value between the corresponding second place of second frequency domain resource and the first position is more than adjustment
The distance between the preceding second place and described first position.
9. device as claimed in claim 7 or 8, it is characterised in that the device also includes：
Void inspection adjusting module, for based on PRACH configuration informations and PUSCH service dispatching informations, really
Between first frequency domain resource and the second frequency domain resource of PUSCH scheduling of the fixed PRACH distribution
Spacing distance be less than given threshold, then calculate the second frequency domain resource correspondence RB on a SINR；Root
It is compared according to the predetermined threshold value of the empty inspections of a SINR and PRACH, according to comparative result to institute
State the first frequency domain resource and second frequency domain resource carries out the empty inspection suppression threshold value of empty inspection and is adjusted.
10. device as claimed in claim 9, it is characterised in that the empty inspection adjusting module specifically for：
When a SINR is more than the default minimum threshold of the empty inspections of PRACH and less than default most wealthy family
Limit value, then according to the segmentation of default SINR grades and the corresponding relation of false alarm rejection thresholding, heighten to described
First frequency domain resource and second frequency domain resource carry out the empty inspection suppression threshold value of empty inspection；Or
When a SINR is more than the default highest threshold value, the then letter to being transmitted by PRACH
Number down-sampled before processing, is processed the PRACH time-domain signals by N ranks equal-ripple filter.
A kind of 11. RACHs suppress the device of empty inspection, it is characterised in that the device includes
Resource location determining module, for based on Physical Random Access Channel PRACH configuration informations, it is determined that
First frequency domain resource of PRACH distribution；Determine that up-link UL subframe needs the physical uplink of scheduling to be total to
Enjoy the second frequency domain resource of channel PUSCH scheduling；
Signal to noise ratio detection module, between first frequency domain resource and second frequency domain resource
Gauge then calculates the signal to noise ratio SINR on the second frequency domain resource correspondence RB from less than given threshold；
Thresholding adjusting module, for being compared according to the predetermined threshold value of the empty inspections of the SINR and PRACH
Compared with the void that empty inspection is carried out to first frequency domain resource and second frequency domain resource according to comparative result is examined and pressed down
Threshold value processed is adjusted.
12. devices as claimed in claim 11, it is characterised in that thresholding adjusting module is specifically for institute
State the default minimum threshold of SINR inspections empty more than PRACH and less than default highest threshold value, then basis
Default SINR grades segmentation and the corresponding relation of false alarm rejection thresholding, heighten to first frequency domain resource
With the empty inspection suppression threshold value that second frequency domain resource carries out empty inspection；Or the SINR is more than described pre-
If highest threshold value, then to the down-sampled before processing of time-domain signal by PRACH transmissions, by N
Rank equal-ripple filter is processed the PRACH time-domain signals.
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| CN201510908860.XA CN106856628B (en) | 2015-12-09 | 2015-12-09 | method and device for restraining virtual detection of random access channel |
| PCT/CN2016/103765 WO2017097055A1 (en) | 2015-12-09 | 2016-10-28 | Method and device for random access channel |
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| CN111132176A (en) * | 2019-12-30 | 2020-05-08 | 天翼物联科技有限公司 | High-concurrency-resistant NB-IOT network communication method and system |
| CN111278160A (en) * | 2019-03-29 | 2020-06-12 | 维沃移动通信有限公司 | Mapping method, terminal equipment and network side equipment |
| WO2021030991A1 (en) * | 2019-08-16 | 2021-02-25 | 华为技术有限公司 | Method and apparatus for determining uplink transmission resource |
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| CN111278160A (en) * | 2019-03-29 | 2020-06-12 | 维沃移动通信有限公司 | Mapping method, terminal equipment and network side equipment |
| WO2020200091A1 (en) * | 2019-03-29 | 2020-10-08 | 维沃移动通信有限公司 | Mapping method, terminal device, and network-side device |
| CN111278160B (en) * | 2019-03-29 | 2022-05-20 | 维沃移动通信有限公司 | Mapping method, terminal equipment and network side equipment |
| WO2021030991A1 (en) * | 2019-08-16 | 2021-02-25 | 华为技术有限公司 | Method and apparatus for determining uplink transmission resource |
| CN111132176A (en) * | 2019-12-30 | 2020-05-08 | 天翼物联科技有限公司 | High-concurrency-resistant NB-IOT network communication method and system |
| CN111132176B (en) * | 2019-12-30 | 2023-09-26 | 天翼物联科技有限公司 | High concurrency resistant NB-IOT network communication method and system |
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| CN106856628B (en) | 2019-12-17 |
| WO2017097055A1 (en) | 2017-06-15 |
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