CN105230096B - Passive intermodulation signal interference dispatching method and device - Google Patents
Passive intermodulation signal interference dispatching method and device Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of passive intermodulation signal interference dispatching method and device, wherein this method comprises: obtaining the first PIM signal according to N number of downlink signal of base station, the N is the integer more than or equal to 2；According to the first PIM signal, running time-frequency resource scheduling and/or power dispatching are carried out to the downlink signal, the first PIM signal according to the downlink signal after the scheduling, after generating scheduling.Due to carrying out running time-frequency resource scheduling and/or the power dispatching of downlink signal according to the first PIM signal, so as to reduce or evade interference of the first PIM signal after scheduling to uplink receiving signal, and then the quality of up channel is improved.
Description
Technical field
The present embodiments relate to field of communication technology more particularly to a kind of passive intermodulation signal interference dispatching methods and dress
It sets.
Background technique
Within a wireless communication network, antenna-feeder system is the important component of base station, and antenna-feeder system is mainly by antenna and feedback
The passive components such as line composition, passive component have it is non-linear, when base station send multiple downlink signals in these passive portions
PIM (Passive Inter Modulation, passive intermodulation) signal can be generated when mixing in part, under the configuration of certain frequency points,
PIM signal caused by downlink signal can be fallen in the uplink receiving frequency range of base station, and PIM signal can be as interference with ibid
Row receives signal and is received by base station, so that uplink signal-channel quality be caused to decline.
Summary of the invention
Passive intermodulation signal interference dispatching method and device provided in an embodiment of the present invention, for according to the first PIM signal
Running time-frequency resource scheduling and/or the power dispatching of downlink signal are carried out, so as to reduce or evade first after scheduling
Interference of the PIM signal to uplink receiving signal, and then improve the quality of up channel.
In a first aspect, the embodiment of the present invention provides a kind of passive intermodulation signal interference dispatching method, comprising:
According to N number of downlink signal of base station, the first PIM signal is obtained, the N is the integer more than or equal to 2；
According to the first PIM signal, running time-frequency resource scheduling and/or power dispatching are carried out to the downlink signal；
The first PIM signal according to the downlink signal after the scheduling, after generating scheduling.
In the first possible implementation of the first aspect, further includes:
According at least two default downlink signals of the base station, the 2nd PIM signal is obtained；
The uplink receiving frequency range of the frequency range and base station that judge the 2nd PIM signal is with the presence or absence of identical frequency resource；
N number of downlink signal according to base station obtains the first PIM signal, comprising:
If the uplink receiving frequency range of the frequency range and base station that judge the first PIM signal there are identical frequency resource,
According to N number of downlink signal of base station, the first PIM signal is obtained.
With reference to first aspect or the first possible implementation of first aspect, second in first aspect are possible
In implementation, N number of downlink signal according to base station obtains the first PIM signal, comprising:
According to the running time-frequency resource position of N number of downlink signal of base station, the running time-frequency resource position of the first PIM signal is obtained
It sets；
It is described according to the first PIM signal, running time-frequency resource scheduling is carried out to the downlink signal, comprising:
According to the running time-frequency resource position of the first PIM signal, running time-frequency resource scheduling is carried out to the downlink signal.
The possible implementation of second with reference to first aspect, in the third possible implementation of first aspect
In, further includes:
According to the power of N number of downlink signal of base station, the power of the first PIM signal is obtained；
It is described according to the first PIM signal, running time-frequency resource scheduling is carried out to the downlink signal, comprising:
According to the running time-frequency resource position of the first PIM signal and power, time-frequency money is carried out to the downlink signal
Source scheduling.
The possible implementation of second with reference to first aspect, in the 4th kind of possible implementation of first aspect
In, the running time-frequency resource position according to the first PIM signal carries out running time-frequency resource scheduling to the downlink signal,
Include:
According to the running time-frequency resource position of the running time-frequency resource position of the first PIM signal and Physical Uplink Control Channel PUCCH
Set it is not identical, to the downlink signal carry out running time-frequency resource scheduling.
The third possible implementation with reference to first aspect, in the 5th kind of possible implementation of first aspect
In, the running time-frequency resource position and power according to the first PIM signal carries out running time-frequency resource to the downlink signal
Scheduling, comprising:
It is big according to running time-frequency resource position and the power of uplink receiving signal when the load of base station is less than the first load pre-value
It is different in the running time-frequency resource position of the first PIM signal of the first power, running time-frequency resource scheduling is carried out to the downlink signal；
When the load of base station is greater than the second load pre-value, according to the height of service quality QoS priority, to the base
The user equipment (UE) of communication of standing is ranked up, according to the running time-frequency resource position of the PIM signal of power from big to small and
The running time-frequency resource position for the uplink receiving signal that UE after the sequence is sent carries out running time-frequency resource to the downlink signal
Scheduling.
With reference to first aspect or any one possible implementation of first to the 5th kind of implementation of first aspect,
In the sixth possible implementation of the first aspect, described according to the first PIM signal, to the downlink signal
Carry out power dispatching, comprising:
According to the first PIM signal, scheduling reduces the power of the downlink signal, after reducing the scheduling
The power of first PIM signal.
The 6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect
In, described according to the first PIM signal, scheduling reduces after the power of the downlink signal, further includes:
Scheduling reduces modulation and the coding strategy MCS order of the downlink signal.
With reference to first aspect or any one possible implementation of first to the 7th kind of implementation of first aspect,
In the 8th kind of possible implementation of first aspect, further includes:
According to the first PIM signal, stop carrying out time-frequency money to the uplink receiving signal on reserved running time-frequency resource
Source scheduling.
With reference to first aspect or any one possible implementation of first to the 8th kind of implementation of first aspect,
In the 9th kind of possible implementation of first aspect, further includes:
According to the first PIM signal, scheduling increases the power of the uplink receiving signal.
Second aspect, the embodiment of the present invention provide a kind of passive intermodulation signal interference dispatching device, comprising:
First acquisition unit obtains the first PIM signal, the N is big for N number of downlink signal according to base station
In or equal to 2 integer；
Processing unit, for carrying out running time-frequency resource scheduling to the downlink signal according to the first PIM signal
And/or power dispatching；
Generation unit, for the first PIM signal according to the downlink signal after the scheduling, after generating scheduling.
In the first possible implementation of the second aspect, further includes:
Second acquisition unit obtains the 2nd PIM letter for at least two default downlink signals according to the base station
Number；
Judging unit, for judge the 2nd PIM signal frequency range and base station uplink receiving frequency range with the presence or absence of phase
Same frequency resource；
If the first acquisition unit is specifically used for frequency range and the base station that the judging unit judges the first PIM signal
Uplink receiving frequency range there are identical frequency resources, then according to N number of downlink signal of base station, obtain the first PIM
Signal.
In conjunction with the possible implementation of the first of second aspect or second aspect, second in second aspect is possible
In implementation, the first acquisition unit is specifically used for the running time-frequency resource position of N number of downlink signal according to base station, obtains
Take the running time-frequency resource position of the first PIM signal；
The processing unit, specifically for the running time-frequency resource position according to the first PIM signal, to the downlink
Signal carries out running time-frequency resource scheduling.
In conjunction with second of possible implementation of second aspect, in the third possible implementation of second aspect
In, the first acquisition unit is also used to the power of N number of downlink signal according to base station, obtains the function of the first PIM signal
Rate；
The processing unit is specifically used for running time-frequency resource position and power according to the first PIM signal, under described
Row transmitting signal carries out running time-frequency resource scheduling.
In conjunction with second of possible implementation of second aspect, in the 4th kind of possible implementation of second aspect
In, the processing unit is specifically used for running time-frequency resource position and Physical Uplink Control Channel according to the first PIM signal
The running time-frequency resource position of PUCCH is not identical, carries out running time-frequency resource scheduling to the downlink signal.
In conjunction with the third possible implementation of second aspect, in the 5th kind of possible implementation of second aspect
In, the processing unit is specifically used for when the load of base station is less than the first load pre-value, according to the time-frequency of uplink receiving signal
Resource location is different greater than the running time-frequency resource position of the first PIM signal of the first power from power, to the downlink signal
Carry out running time-frequency resource scheduling；
When the load of base station is greater than the second load pre-value, according to the height of service quality QoS priority, to the base
The user equipment (UE) of communication of standing is ranked up, according to the running time-frequency resource position of the PIM signal of power from big to small and
The running time-frequency resource position for the uplink receiving signal that UE after the sequence is sent, to the running time-frequency resource of the downlink signal into
Row scheduling.
In conjunction with any one possible implementation of first to the 5th kind of implementation of second aspect or second aspect,
In the sixth possible implementation of the second aspect, the processing unit is specifically used for being adjusted according to the first PIM signal
Degree reduces the power of the downlink signal, to reduce the power of the first PIM signal after scheduling.
In conjunction with the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation of second aspect
In, the processing unit is also used to dispatch the modulation for reducing the downlink signal and coding strategy MCS order.
In conjunction with any one possible implementation of first to the 7th kind of implementation of second aspect or second aspect,
In the 8th kind of possible implementation of second aspect, the processing unit is also used to according to the first PIM signal, pre-
It stays and stops carrying out running time-frequency resource scheduling to the uplink receiving signal on running time-frequency resource.
In conjunction with any one possible implementation of first to the 8th kind of implementation of second aspect or second aspect,
In the 9th kind of possible implementation of second aspect, the processing unit is also used to according to the first PIM signal, scheduling
Increase the power of the uplink receiving signal.
Passive intermodulation signal interference dispatching method and device provided in an embodiment of the present invention, by according to base station it is N number of under
Row transmitting signal obtains the first PIM signal, and N is the integer more than or equal to 2, and according to the first PIM signal, sends out downlink
It penetrates signal and carries out running time-frequency resource scheduling and/or power dispatching, according to the downlink signal after scheduling, generate first after dispatching
PIM signal.Due to carrying out running time-frequency resource scheduling and/or power dispatching to downlink signal according to the first PIM signal, to generate
The first PIM signal after scheduling, so that the first PIM signal after scheduling can reduce or evade to uplink receiving signal
Interference, and then improve up channel quality.
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 this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of passive intermodulation signal interference dispatching method embodiment one of the present invention；
Fig. 2 is the flow chart of passive intermodulation signal interference dispatching method embodiment two of the present invention；
Fig. 3 is a kind of schematic diagram of the running time-frequency resource position of the first PIM signal in Fig. 2；
Fig. 4 is the flow chart of passive intermodulation signal interference dispatching method embodiment three of the present invention；
Fig. 5 is the structural schematic diagram of passive intermodulation signal interference dispatching device embodiment one of the present invention；
Fig. 6 is the structural schematic diagram of passive intermodulation signal interference dispatching device embodiment two of the present invention；
Fig. 7 is the structural schematic diagram of passive intermodulation signal interference dispatching device embodiment three of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is the flow chart of passive intermodulation signal interference dispatching method embodiment one of the present invention, as shown in Figure 1, this implementation
Example method can may include: by network side equipment (for example, base station) Lai Zhihang, the method for the present embodiment
S101, N number of downlink signal according to base station, obtain the first PIM signal, and N is the integer more than or equal to 2.
The present embodiment is applied in frequency division duplex (Frequency Division Duplexing, referred to as: FDD) scene,
Since PIM signal is by least two downlink signals in communication system analog device itself (arm such as cable, duplexer and day
Feedback etc.) non-ideal factor influence it is generated, so in order to obtain the downlink signal of base station PIM generated letter
Number, can determine all downlink signals of base station, all downlink signals of the base station be it is N number of, N be more than or equal to
Then 2 integer can obtain in real time N number of downlink letter in real time according to N number of downlink signal of base station
Number the first PIM signal generated.
S102, according to the first PIM signal, running time-frequency resource scheduling and/or power dispatching are carried out to downlink signal.
S103, the first PIM signal according to the downlink signal after scheduling, after generating scheduling.
In the present embodiment, obtain in real time N number of downlink signal the first PIM signal generated and then according to
First PIM signal carries out running time-frequency resource scheduling and/or the power dispatching of downlink signal, after being dispatched
Then the first PIM signal after scheduling can be generated according to the downlink signal after scheduling in downlink signal, so as to
Influence of the first PIM signal to uplink receiving channel quality after reducing scheduling generated.
Specifically, in the prior art, running time-frequency resource is scheduled and is normally based on present channel quality to user
It is scheduled, it is, carrying out downlink to user according to customer service situation and current downlink channel in scheduling process
The running time-frequency resource of signal is dispatched, and carries out the time-frequency of uplink receiving signal to user according to customer service situation and current up channel
Scheduling of resource, and in the communication system that downlink signal can generate PIM signal, and the PIM signal can be believed by uplink
Road is received by base station, while the time-frequency resource allocating mode of downlink signal will affect the distribution of PIM signal, so that PIM
Signal interference up channel, and then PIM signal will affect the quality of up channel.If carry out excessive to downlink signal
Frequency scheduling of resource will cause the increase of PIM signal interference, so as to cause uplink signal-channel quality severe exacerbation, and then influence communication system
The up-link service quality of system.In the case where PIM signal interference is very big, the interruption of entire uplink business is even resulted in.
In contrast, in the present embodiment, after obtaining the first PIM signal, according to the first PIM signal, to downlink
Signal carries out running time-frequency resource scheduling, i.e., is dispatched according to the running time-frequency resource that the first PIM signal carries out downlink signal, due to first
PIM signal is generated by N number of downlink signal, thus by downlink signal carry out running time-frequency resource scheduling come pair
First PIM signal interference is scheduled, since the running time-frequency resource to downlink signal is dispatched, after being dispatched
The first PIM signal after scheduling can be generated according to the downlink signal after scheduling in downlink signal, so that generate
The first PIM signal after scheduling reduces the interference to uplink receiving signal far from uplink receiving signal, even is eliminated PIM
The interference of signal, to improve uplink signal-channel quality.
Specifically, in the prior art, power control strategy is merely according to current channel situation and user feedback
Carry out power control, but in the case where downlink signal PIM signal generated is fallen in uplink receiving channel, under
The transmission power of row transmitting signal can be affected to uplink receiving signal namely the transmission power of downlink signal is larger,
The transmission power of the PIM signal then generated is also larger, and PIM signal can be as interference by uplink receiving, so that uplink
The noise for receiving signal becomes larger, so that down channel quality deteriorates.
In contrast, in the present embodiment, after obtaining the first PIM signal, downlink is believed according to the first PIM signal
Number carry out power dispatching, i.e., according to the first PIM signal dispatching reduce downlink signal power, due to downlink signal
Power reduced, obtain power dispatching reduce after downlink signal, according to the downlink signal after scheduling
The first PIM signal after power dispatching is reduced can be generated, so that the power of the first PIM signal after scheduling is reduced,
When the first PIM signal after scheduling is by uplink receiving, since the power of the first PIM signal after scheduling is small, so that uplink receiving
The noise of signal becomes smaller, and then improves uplink signal-channel quality.
The PIM signal interference dispatching method that the embodiment of the present invention one provides, by being believed according to N number of downlink of base station
Number, obtain the first PIM signal, N is integer more than or equal to 2, and according to the first PIM signal, to downlink signal into
The scheduling of row running time-frequency resource and/or power dispatching, the first PIM signal according to the downlink signal after scheduling, after generating scheduling.
Due to carrying out running time-frequency resource scheduling and/or power dispatching to downlink signal according to the first PIM signal, after generating scheduling
First PIM signal, so that the first PIM signal after scheduling can reduce or evade the interference to uplink receiving signal,
And then improve the quality of up channel.
Fig. 2 is the flow chart of passive intermodulation signal interference dispatching method embodiment two of the present invention, as shown in Fig. 2, this implementation
Example method can may include: by network side equipment (for example, base station) Lai Zhihang, the method for the present embodiment
S201, at least two default downlink signals according to base station obtain the 2nd PIM signal.
In the present embodiment, at least two default downlink signals are set to base station, each default downlink signal
Center frequency point is different, and the center frequency point for each presetting downlink signal is the launching frequency of base station, it is preferable that each pre-
If downlink signal is the wide signal of filled band.Assuming that base station can emit the default downlink signal of above-mentioned at least two,
Then according at least two default the 2nd PIM signal of downlink signal acquisition, the 2nd PIM signal is above-mentioned at least two
A default downlink signal is generated, specifically, can according to it is existing calculate PIM signal formula and it is above-mentioned at least
Two default downlink signals obtain the frequency range of the 2nd PIM signal namely the center frequency point and frequency spectrum exhibition of the 2nd PIM signal
It is wide.
The uplink receiving frequency range of S202, the frequency range for judging the 2nd PIM signal and base station whether there is identical frequency resource；
If so, S203 is executed, if it is not, then executing S206.
In the present embodiment, after obtaining the 2nd PIM signal, it can be determined that whether the 2nd PIM signal falls in the upper of base station
In row receiving channel, namely may determine that the 2nd PIM signal frequency range and base station uplink receiving frequency range with the presence or absence of identical
Frequency resource, if there are identical frequency resource, Ye Ji for the frequency range and the uplink receiving frequency range of base station that judge the 2nd PIM signal
Two PIM signals have been fallen in the uplink receiving channel of base station, then execute S203, it is assumed that the frequency range of the 2nd PIM signal is 810-
850MHz, the uplink receiving frequency range of base station are 824-849MHz, then may determine that the uplink receiving frequency of the 2nd PIM signal and base station
There are identical frequency resource namely 824-850MHz between section.If the uplink of the frequency range and base station that judge the 2nd PIM signal connects
Receiving frequency range, there is no identical frequency resources namely the 2nd PIM signal not to fall in the uplink receiving channel of base station, then executes
S206, it is assumed that the frequency range of the 2nd PIM signal is 810-850MHz, and the uplink receiving frequency range of base station is 1875-1900MHz, then may be used
To judge that the uplink receiving frequency range of the 2nd PIM signal and base station does not have identical frequency resource.
S203, N number of downlink signal according to base station obtain the first PIM signal.
In the present embodiment, in the uplink receiving frequency range of the frequency range and base station that judge the 2nd PIM signal, there are identical frequencies
Resource, illustrate the first PIM signal can to uplink receiving signal generate interference, then can be actually subjected to according to base station transmitting it is N number of under
Row transmitting signal, obtain the first PIM signal, specifically, base station can according to the running time-frequency resource position of N number of downlink signal,
The running time-frequency resource position of the first PIM signal is obtained, namely the first PIM signal obtained is the data structure of a time-frequency two-dimensional,
The data structure can be obtained by the existing formula for obtaining the first PIM signal, and Fig. 3 is the time-frequency money of the first PIM signal in Fig. 2
A kind of schematic diagram of source position, as shown in figure 3, time (Time) frequency (Frequency) two-dimensional resource shown in Fig. 3
In, running time-frequency resource shown in black is that region shown in running time-frequency resource namely black where the first PIM signal is to have first
The region of PIM signal interference.
Further, the present embodiment can also obtain the first PIM signal according to the power of N number of downlink signal of base station
Power, also can according to the power of N number of downlink signal of base station, obtain the first PIM signal in different running time-frequency resources
On power, such as: the present embodiment can establish the quantitative relationship of downlink signal Yu uplink receiving signal, be sent out according to downlink
The power for the first PIM signal that signal is calculated on different running time-frequency resources is penetrated, to establish downlink signal and first
The power relation of PIM signal.
S204, according to the first PIM signal, running time-frequency resource scheduling and/or power dispatching are carried out to downlink signal.
S205, the first PIM signal according to the downlink signal after scheduling, after generating scheduling.
In the present embodiment, after obtaining the first PIM signal, downlink signal can be carried out according to the first PIM signal
Running time-frequency resource scheduling and/or power dispatching, specifically, can be carried out according to the first PIM signal M downlink signal when
Frequency scheduling of resource and/or power dispatching, above-mentioned M are the integer less than or equal to N.
It can be according to the case where uplink and downlink business and the first PIM signal, with QoS of customer (QoS) in the present embodiment
It is scheduled for criterion.
In the first feasible implementation, according to the running time-frequency resource position of the first PIM signal, to downlink signal
Carry out running time-frequency resource scheduling, obtain the first PIM signal running time-frequency resource position after, can according to the first PIM signal when
Frequency resource location and Physical Uplink Control Channel (Physical Uplink Control CHannel, referred to as: PUCCH) when
Frequency resource location is not identical, is scheduled to the running time-frequency resource of downlink signal.By current Transmission Time Interval
In (Transmission Time Interval, referred to as: TTI), can the downlink signal to current TTI carry out time-frequency money
Source scheduling, and the running time-frequency resource where the uplink receiving signal of current TTI be it is scheduled good in preceding K TTI, K is big
In the integer for being equal to 1, so base station is the running time-frequency resource position for having had learned that the uplink receiving signal of current TTI in current TTI
It sets, since uplink receiving signal includes PUCCH, so base station can determine the running time-frequency resource position of the PUCCH of current TTI, by
It in the first PIM signal is generated by N number of downlink signal, changes the running time-frequency resource position of N number of downlink signal
To change the running time-frequency resource position of the first PIM signal, in order to improve the quality of up channel, it is ensured that the first PIM signal
The running time-frequency resource of running time-frequency resource and PUCCH do not deposit identical running time-frequency resource, namely the running time-frequency resource position according to the first PIM signal
It is not identical as the running time-frequency resource position of PUCCH, running time-frequency resource tune is carried out to M downlink signal of N number of downlink signal
Degree, N number of downlink signal after scheduling available in this way, then according to N number of downlink signal after scheduling, Ke Yisheng
At the first PIM signal after scheduling, so that generating running time-frequency resource position and the PUCCH of the first PIM signal after scheduling
Running time-frequency resource position is not identical, can evade interference of the first PIM signal to PUCCH in this way, to improve the matter of up channel
Amount.It is, in the case where permission, the first PIM signal for not allowing downlink signal to generate as far as possible is fallen for control channel
In PUCCH channel.
In second of feasible implementation, according to the running time-frequency resource position of the first PIM signal and power, downlink is sent out
It penetrates signal and carries out running time-frequency resource scheduling, after the running time-frequency resource position and power for obtaining the first PIM signal, when the load of base station
When less than the first load pre-value, running time-frequency resource position and the uplink receiving of the first PIM signal of the first power are greater than according to power
The running time-frequency resource position of signal is different, is scheduled to the running time-frequency resource of downlink signal；The load of base station is negative less than first
When carrying pre-value, illustrate that base station and a small amount of user equipment (User Equipment, referred to as: UE) are communicated, due to current TTI
The running time-frequency resource of uplink receiving signal be scheduled when being preceding K TTI, so being that can determine to work as in the current base station TTI
The running time-frequency resource position of the uplink receiving signal of preceding TTI, due to having been obtained for the first PIM signal on different running time-frequency resources
Power, when the power of the first PIM signal on a certain running time-frequency resource is greater than the first power, it is believed that the first PIM signal
It is bigger to the interference of uplink receiving signal, it, can be in order to make the first PIM signal of this part not influence uplink receiving signal
The running time-frequency resource of M downlink signal in N number of downlink signal is scheduled, the N after scheduling available in this way
The first PIM signal after dispatching can be generated then according to N number of downlink signal after scheduling in a downlink signal, with
So that power be greater than the first power scheduling after the first PIM signal running time-frequency resource and uplink receiving signal running time-frequency resource not
There are the running time-frequency resource position of the first PIM signal after the scheduling that identical running time-frequency resource namely power are greater than the first power with
The running time-frequency resource position of uplink receiving signal is different, can evade the first PIM signal after interfering biggish scheduling in this way to upper
Row receives the interference of signal, to improve the quality of up channel.It preferably, can be according to the time-frequency of all first PIM signals
Resource location is different from the running time-frequency resource position of uplink receiving signal, to M downlink signal of N number of downlink signal into
The scheduling of row running time-frequency resource, can evade interference of all first PIM signals to uplink receiving signal in this way, to improve uplink letter
The quality in road.
In the third feasible implementation, according to the running time-frequency resource position of the first PIM signal and power, downlink is carried out
The running time-frequency resource scheduling for emitting signal, after the running time-frequency resource position and power for obtaining the first PIM signal, when the load of base station
When greater than the second load pre-value, according to the height of QoS priority, the UE with base station communication is ranked up, according to power from big
The running time-frequency resource position for the uplink receiving signal that UE after to the running time-frequency resource position of the first small PIM signal and sequence is sent,
The running time-frequency resource of downlink signal is scheduled.When the load of base station is greater than the second load pre-value, illustrate base station and a large amount of
UE communicated, be scheduled when due to the running time-frequency resource of the uplink receiving signal of current TTI being preceding K TTI, thus
The current base station TTI is the running time-frequency resource position that can determine the uplink receiving signal of current TTI, and base station can be according to user QoS
The height of priority is ranked up the UE with base station communication, that is, from low to high according to user's QoS priority, to UE into
Row sequence, obtains by the UE of low QoS priority to high QoS priority, therefore, base station can obtain each user's QoS priority
The running time-frequency resource position of uplink receiving signal transmitted by different UE.Due to having been obtained for the first PIM signal when different
Power in frequency resource can obtain the running time-frequency resource position of the first PIM signal of power from big to small, in order to reduce or evade
Uplink receiving signal transmitted by the UE of high QoS priority is influenced by the first PIM signal, if when corresponding to the current TTI
In frequency resource, dispatching uplink is not used for there are reserved running time-frequency resource and receives signal, then can be dispatched in N number of downlink signal
M downlink signal running time-frequency resource, N number of downlink signal after scheduling available in this way, then according to scheduling
N number of downlink signal afterwards, the first PIM signal after scheduling can be generated, so that the first PIM after high-power scheduling
Signal is located on the reserved running time-frequency resource, and the first PIM signal after the scheduling for making remaining power small is located at user QoS
On the running time-frequency resource of uplink receiving signal transmitted by the low UE of priority.If in the running time-frequency resource corresponding to current TTI, institute
Some running time-frequency resources are used to dispatching uplink and receive signal, then can dispatch the M downlink letter in N number of downlink signal
Number running time-frequency resource, N number of downlink signal after scheduling available in this way, then according to N number of downlink after scheduling
Signal, the first PIM signal after scheduling can be generated, so that the first PIM signal after high-power scheduling is located at user QoS
The first PIM on the running time-frequency resource of uplink receiving signal transmitted by the low UE of priority, and after the scheduling for making power small
Signal is located on the running time-frequency resource of uplink receiving signal transmitted by the higher UE of user's QoS priority.
In the 4th kind of feasible implementation, according to the first PIM signal, scheduling reduces the power of downlink signal,
To reduce the power of the first PIM signal after scheduling.The first PIM signal running time-frequency resource position and uplink receiving signal when
In the case that frequency resource location can not be staggered, the function for reducing M downlink signal in N number of downlink signal can also be dispatched
Rate, so available power dispatching reduce after N number of downlink signal, under N number of after then being reduced according to power dispatching
Row transmitting signal, the first PIM signal after power dispatching reduction can be generated, due to the power of the first PIM signal after scheduling
Reduction, so as to reduce interference of the first PIM signal to uplink receiving signal after scheduling, and then uplink letter can be improved
The quality in road.Further, the modulation for reducing downlink signal and coding strategy (Modulation and can also be dispatched
Coding Scheme, referred to as: MCS) order, this is because scheduling reduces down M downlink letter in N number of row transmitting signal
Number power, MCS order and power have corresponding relationship, so can also reduce the MCS order of downlink signal.
It should be noted that the 4th kind of above-mentioned feasible implementation can be feasible to the third in conjunction with above-mentioned first
At least one of implementation, with realize carried out according to the first PIM signal downlink signal running time-frequency resource scheduling and
Power dispatching.
S206, terminate process.
In the present embodiment, identical frequency is not deposited in the uplink receiving frequency range of the frequency range and base station that judge the 2nd PIM signal
Resource illustrates that the 2nd PIM signal will not generate interference to uplink receiving signal, then can terminate process, terminate in the present embodiment
Process also can carry out running time-frequency resource tune to downlink signal and uplink receiving signal respectively using the scheme of the prior art
Degree.
PIM signal interference dispatching method provided by Embodiment 2 of the present invention, by being set in advance according at least two of base station
Row transmitting signal, obtains the 2nd PIM signal, when there are identical for the frequency range and the uplink receiving frequency range of base station of the 2nd PIM signal
When frequency resource, according to N number of downlink signal of base station, the first PIM signal is obtained, according to the first PIM signal, downlink is sent out
It penetrates signal and carries out running time-frequency resource scheduling and/or power dispatching, and according to the downlink signal after scheduling, the after generating scheduling
One PIM signal；Due to carrying out running time-frequency resource scheduling and/or power dispatching to downlink signal according to the first PIM signal, from
And interference of the first PIM signal to uplink receiving signal after scheduling can be reduced or even evade, and then improve up channel
Quality.
Fig. 4 is the flow chart of passive intermodulation signal interference dispatching method embodiment three of the present invention, as shown in figure 4, this implementation
On the basis of method embodiment of the method shown in Fig. 1 or Fig. 2 of example, further, can also include:
S301, according to the first PIM signal, stop carrying out running time-frequency resource tune to uplink receiving signal on reserved running time-frequency resource
Degree.
It, can be according to the first PIM signal, on reserved running time-frequency resource after obtaining the first PIM signal in the present embodiment
Stop carrying out running time-frequency resource scheduling to uplink receiving signal.It should be noted that the uplink receiving signal in current TTI scheduling is
Base station is in the received uplink receiving signal of the following K TTI institute.
In running time-frequency resource corresponding to TTI, some reserved running time-frequency resources can be preset, reserved running time-frequency resource is to show
Row retains some running time-frequency resources, these running time-frequency resources avoid the generation of downlink signal for ensureing minimum communication demand
The first PIM signal can occupy the running time-frequency resource of uplink receiving signal, can be by right so reserve on running time-frequency resource at these
Downlink signal carries out running time-frequency resource scheduling, so that the first PIM signal generated is located at above-mentioned reserved running time-frequency resource
On, such first PIM signal would not occupy the running time-frequency resource of uplink receiving signal, therefore can be by believing to uplink receiving
Number running time-frequency resource scheduling process in be provided with the scheduling that reserved running time-frequency resource is not used in uplink receiving signal so that uplink connects
The collection of letters number is far from a first PIM signal, so that interference of the first PIM signal to the uplink receiving signal is reduced or evade, to improve
Uplink signal-channel quality.
Optionally, the present embodiment can also include:
S302, according to the first PIM signal, scheduling increases the power of uplink receiving signal.
In the present embodiment, according to the first PIM signal, scheduling increases the power of uplink receiving signal.In the first PIM signal
In the case that the running time-frequency resource position of running time-frequency resource position and uplink receiving signal can not be staggered, current TTI can be to the following K
The power of the uplink receiving signal of a TTI is controlled, and the power of the uplink receiving signal of the following K TTI can be also increased,
Since the power of uplink receiving signal increases, compare under so that the noise of uplink receiving signal becomes smaller, the first PIM letter
Number the interference of uplink receiving signal can be reduced, and then the quality of up channel can be improved.Further, liter can also be dispatched
The MCS order of high uplink receiving signal, this is because increase the power of uplink receiving signal, MCS order and power have pair
It should be related to, so the MCS order of uplink receiving signal can also be increased.
It is worth noting that, executed before S102 and S103 that S301 and S302 can be shown in Fig. 1 in current TTI,
Can be performed simultaneously with S102 shown in FIG. 1 and S103, alternatively, S204 and S205 that S301 and S302 can be shown in Fig. 2 it
Preceding execution can also be performed simultaneously with S204 shown in Fig. 2 and S205, and the embodiment of the present invention is herein with no restrictions.
In addition, S206 can be only carried out after executing S203 according to actual application scenarios, or S207 is only carried out, or
Person only carries out S206 and S207.
The PIM signal interference dispatching method that the embodiment of the present invention three provides, further, by according to the first PIM signal,
Stop carrying out running time-frequency resource scheduling to uplink receiving signal on reserved running time-frequency resource；According to the first PIM signal, scheduling is risen
The power of high uplink receiving signal.Since according to the first PIM signal running time-frequency resource control can also be carried out to uplink receiving signal
And/or power dispatching, so as to reduce or even evade interference of the passive intermodulation signal to uplink receiving signal, and then improve
The quality of row channel.
Fig. 5 is the structural schematic diagram of passive intermodulation signal interference dispatching device embodiment one of the present invention, as shown in figure 5, this
The device of embodiment may include: first acquisition unit 11, processing unit 12 and generation unit 13, and first acquisition unit 11 is used for
According to N number of downlink signal of base station, the first PIM signal is obtained, the N is the integer more than or equal to 2；Processing unit 12
For carrying out running time-frequency resource scheduling and/or power dispatching to the downlink signal according to the first PIM signal.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 1, realization principle and skill
Art effect is similar, may refer to the related record in above-described embodiment in detail, details are not described herein again.
Fig. 6 is the structural schematic diagram of passive intermodulation signal interference dispatching device embodiment two of the present invention, as shown in fig. 6, this
It can also include: second acquisition unit 14 and to sentence further on the basis of the device of embodiment apparatus structure shown in Fig. 5
Disconnected unit 15, the second acquisition unit 14 are used for at least two default downlink signals according to the base station, obtain second
PIM signal；Judging unit 15 is used to judge that the frequency range of the 2nd PIM signal to whether there is phase with the uplink receiving frequency range of base station
Same frequency resource；If first acquisition unit 11 is specifically used for the frequency range and base that judging unit 15 judges the first PIM signal
There are identical frequency resources for the uplink receiving frequency range stood, then according to N number of downlink signal of base station, obtain described first
PIM signal.
Optionally, first acquisition unit 11 is specifically used for the running time-frequency resource position of N number of downlink signal according to base station,
Obtain the running time-frequency resource position of the first PIM signal；Processing unit 12 is specifically used for the running time-frequency resource according to the first PIM signal
Position carries out running time-frequency resource scheduling to the downlink signal.
Optionally, processing unit 12 is specifically used for running time-frequency resource position and physical uplink according to the first PIM signal
The running time-frequency resource position of control channel PUCCH is not identical, carries out running time-frequency resource scheduling to the downlink signal.
Further, first acquisition unit 11 is also used to the power of N number of downlink signal according to base station, obtains first
The power of PIM signal；Processing unit 12 is specifically used for running time-frequency resource position and power according to the first PIM signal, to institute
It states downlink signal and carries out running time-frequency resource scheduling.
Optionally, processing unit 12 is specifically used for when the load of base station is less than the first load pre-value, according to uplink receiving
The running time-frequency resource position of signal is different greater than the running time-frequency resource position of the first PIM signal of the first power from power, under described
Row transmitting signal carries out running time-frequency resource scheduling；
When the load of base station is greater than the second load pre-value, according to the height of service quality QoS priority, to the base
The user equipment (UE) of communication of standing is ranked up, according to the running time-frequency resource position of the PIM signal of power from big to small and
The running time-frequency resource position for the uplink receiving signal that UE after the sequence is sent, to the running time-frequency resource of the downlink signal into
Row scheduling.
Optionally, processing unit 12 is specifically used for according to the first PIM signal, and scheduling reduces the downlink signal
Power, with reduce scheduling after the first PIM signal power.
Further, processing unit 12 is also used to dispatch the modulation for reducing the downlink signal and coding strategy MCS
Order.
Optionally, processing unit 12 is also used to be stopped on reserved running time-frequency resource to described according to the first PIM signal
Uplink receiving signal carries out running time-frequency resource scheduling.
Optionally, processing unit 12 is also used to according to the first PIM signal, and scheduling increases the uplink receiving signal
Power.
The device of the present embodiment can be used for executing the technical solution of embodiment of the method shown in Fig. 2 or Fig. 4, in detail can be with
It is recorded referring to the correlation in above-described embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Fig. 7 is the structural schematic diagram of passive intermodulation signal interference dispatching device embodiment three of the present invention, as shown in fig. 7, this
The device of embodiment may include: memory 21 and processor 22；Wherein, memory 21 is for storing the scheduling of PIM signal interference
The code of method；Processor 22 is used for according to N number of downlink signal of base station, obtains the first PIM signal, the N be greater than
Or the integer equal to 2；And according to the first PIM signal, running time-frequency resource scheduling and/or function are carried out to the downlink signal
Rate scheduling, and the first PIM signal according to the downlink signal after the scheduling, after generating scheduling.
Further, processor 22 is also used at least two default downlink signals according to the base station, obtains the
Two PIM signals；And judge that the frequency range of the 2nd PIM signal and the uplink receiving frequency range of base station are provided with the presence or absence of identical frequency
Source；
If there are identical frequencies for frequency range and the uplink receiving frequency range of base station that processor 22 judges the first PIM signal
Resource obtains the first PIM signal then according to N number of downlink signal of base station.
Optionally, processor 22 is specifically used for the running time-frequency resource position according to N number of downlink signal of base station, obtains the
The running time-frequency resource position of one PIM signal；And according to the running time-frequency resource position of the first PIM signal, the downlink is believed
Number carry out running time-frequency resource scheduling.
Optionally, processor 22 is specifically used for running time-frequency resource position and physical uplink control according to the first PIM signal
The running time-frequency resource position of channel PUCCH processed is not identical, is scheduled to the running time-frequency resource of the downlink signal.
Optionally, processor 22 is also used to the power of N number of downlink signal according to base station, obtains the first PIM signal
Power；
Processor 22 is specifically used for running time-frequency resource position and power according to the first PIM signal, carries out the downlink
Emit the running time-frequency resource scheduling of signal.
Optionally, processor 22 is specifically used for being connect when the load of base station is less than the first load pre-value according to the uplink
The running time-frequency resource position of the collection of letters number is different greater than the running time-frequency resource position of the first PIM signal of the first power from power, to described
Downlink signal carries out running time-frequency resource scheduling；
When the load of base station is greater than the second load pre-value, according to the height of service quality QoS priority, to the base
The user equipment (UE) of communication of standing is ranked up, according to the running time-frequency resource position of the PIM signal of power from big to small and
The running time-frequency resource position for the uplink receiving signal that UE after the sequence is sent carries out running time-frequency resource to the downlink signal
Scheduling.
Optionally, processor 22 is specifically used for according to the first PIM signal, and scheduling reduces the downlink signal
Power, to reduce the power of the first PIM signal after the scheduling.
Further, processor 22 is also used to dispatch the modulation for reducing the downlink signal and coding strategy MCS rank
Number.
Optionally, processor 22 is also used to according to the first PIM signal, is stopped on reserved running time-frequency resource on described
Row receives signal and carries out running time-frequency resource scheduling.
Optionally, processor 22 is also used to according to the first PIM signal, and scheduling increases the function of the uplink receiving signal
Rate.
The device of the present embodiment can be used for executing the technical solution of Fig. 1 or any one of Fig. 2 or Fig. 4 embodiment, in detail
It carefully may refer to the related record in above-described embodiment, it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (20)
1. a kind of passive intermodulation PIM signal interference dispatching method characterized by comprising
According to N number of downlink signal of base station, the first PIM signal is obtained, the N is the integer more than or equal to 2；
According to the first PIM signal, running time-frequency resource scheduling and/or power dispatching are carried out to the downlink signal；
The first PIM signal according to the downlink signal after the scheduling, after generating scheduling.
2. the method according to claim 1, wherein further include:
According at least two default downlink signals of the base station, the 2nd PIM signal is obtained；
The uplink receiving frequency range of the frequency range and base station that judge the 2nd PIM signal is with the presence or absence of identical frequency resource；
N number of downlink signal according to base station obtains the first PIM signal, comprising:
If there are identical frequency resource, bases for the frequency range and the uplink receiving frequency range of base station that judge the 2nd PIM signal
N number of downlink signal of base station obtains the first PIM signal.
3. the method according to claim 1, wherein N number of downlink signal according to base station, the is obtained
One PIM signal, comprising:
According to the running time-frequency resource position of N number of downlink signal of base station, the running time-frequency resource position of the first PIM signal is obtained；
It is described according to the first PIM signal, running time-frequency resource scheduling is carried out to the downlink signal, comprising:
According to the running time-frequency resource position of the first PIM signal, running time-frequency resource scheduling is carried out to the downlink signal.
4. according to the method described in claim 3, it is characterized by further comprising:
According to the power of N number of downlink signal of base station, the power of the first PIM signal is obtained；
It is described according to the first PIM signal, running time-frequency resource scheduling is carried out to the downlink signal, comprising:
According to the running time-frequency resource position of the first PIM signal and power, running time-frequency resource tune is carried out to the downlink signal
Degree.
5. according to the method described in claim 3, it is characterized in that, the running time-frequency resource position according to the first PIM signal
It sets, running time-frequency resource scheduling is carried out to the downlink signal, comprising:
Not according to the running time-frequency resource position of the first PIM signal and the running time-frequency resource position of Physical Uplink Control Channel PUCCH
It is identical, running time-frequency resource scheduling is carried out to the downlink signal.
6. according to the method described in claim 4, it is characterized in that, the running time-frequency resource position according to the first PIM signal
It sets and power, running time-frequency resource scheduling is carried out to the downlink signal, comprising:
When the load of base station is less than the first load threshold, it is greater than the according to the running time-frequency resource position of uplink receiving signal and power
The running time-frequency resource position of first PIM signal of one power is different, carries out running time-frequency resource scheduling to the downlink signal；
When the load of base station is greater than the second load threshold, according to the height of service quality QoS priority, to logical with the base station
The user equipment (UE) of letter is ranked up, according to the running time-frequency resource position of the first PIM signal of power from big to small and described
The running time-frequency resource position for the uplink receiving signal that UE after sequence is sent carries out running time-frequency resource tune to the downlink signal
Degree.
7. method described in -6 any one according to claim 1, which is characterized in that it is described according to the first PIM signal, it is right
The downlink signal carries out power dispatching, comprising:
According to the first PIM signal, scheduling reduces the power of the downlink signal, to reduce by first after the scheduling
The power of PIM signal.
8. the method according to the description of claim 7 is characterized in that described according to the first PIM signal, described in scheduling reduces
After the power of downlink signal, further includes:
Scheduling reduces modulation and the coding strategy MCS order of the downlink signal.
9. method described in -6 any one according to claim 1, which is characterized in that further include:
According to the first PIM signal, stop carrying out running time-frequency resource scheduling to uplink receiving signal on reserved running time-frequency resource.
10. method described in -6 any one according to claim 1, which is characterized in that further include:
According to the first PIM signal, scheduling increases the power of uplink receiving signal.
11. a kind of passive intermodulation PIM signal interference dispatching device characterized by comprising
First acquisition unit obtains the first PIM signal for N number of downlink signal according to base station, the N be greater than or
Integer equal to 2；
Processing unit, for according to the first PIM signal, to the downlink signal carry out running time-frequency resource scheduling and/or
Power dispatching；
Generation unit, for the first PIM signal according to the downlink signal after the scheduling, after generating scheduling.
12. device according to claim 11, which is characterized in that further include:
Second acquisition unit obtains the 2nd PIM signal for at least two default downlink signals according to the base station；
Judging unit, for judge the 2nd PIM signal frequency range and base station uplink receiving frequency range with the presence or absence of identical
Frequency resource；
If the first acquisition unit be specifically used for the judging unit judge the 2nd PIM signal frequency range and base station it is upper
Row receives frequency range, and there are identical frequency resources, then according to N number of downlink signal of base station, obtain the first PIM signal.
13. device according to claim 11, which is characterized in that the first acquisition unit is specifically used for according to base station
The running time-frequency resource position of N number of downlink signal obtains the running time-frequency resource position of the first PIM signal；
The processing unit, specifically for the running time-frequency resource position according to the first PIM signal, to the downlink signal
Carry out running time-frequency resource scheduling.
14. device according to claim 13, which is characterized in that the first acquisition unit is also used to the N according to base station
The power of a downlink signal obtains the power of the first PIM signal；
The processing unit is specifically used for running time-frequency resource position and power according to the first PIM signal, sends out the downlink
It penetrates signal and carries out running time-frequency resource scheduling.
15. device according to claim 13, which is characterized in that the processing unit is specifically used for according to described first
The running time-frequency resource position of PIM signal and the running time-frequency resource position of Physical Uplink Control Channel PUCCH be not identical, sends out the downlink
It penetrates signal and carries out running time-frequency resource scheduling.
16. device according to claim 14, which is characterized in that the processing unit is specifically used for when the load of base station is small
When the first load threshold, believed according to the first PIM that the running time-frequency resource position of uplink receiving signal and power are greater than the first power
Number running time-frequency resource position it is different, running time-frequency resource scheduling is carried out to the downlink signal；
When the load of base station is greater than the second load threshold, according to the height of service quality QoS priority, to logical with the base station
The user equipment (UE) of letter is ranked up, according to the running time-frequency resource position of the first PIM signal of power from big to small and described
The running time-frequency resource position for the uplink receiving signal that UE after sequence is sent, adjusts the running time-frequency resource of the downlink signal
Degree.
17. device described in 1-16 any one according to claim 1, which is characterized in that the processing unit is specifically used for root
According to the first PIM signal, scheduling reduces the power of the downlink signal, to reduce the first PIM signal after scheduling
Power.
18. device according to claim 17, which is characterized in that the processing unit, which is also used to dispatch, reduces the downlink
Emit modulation and the coding strategy MCS order of signal.
19. device described in 1-16 any one according to claim 1, which is characterized in that the processing unit is also used to basis
The first PIM signal stops carrying out running time-frequency resource scheduling to uplink receiving signal on reserved running time-frequency resource.
20. device described in 1-16 any one according to claim 1, which is characterized in that the processing unit is also used to basis
The first PIM signal, scheduling increase the power of uplink receiving signal.
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| CN112205056A (en) * | 2018-05-16 | 2021-01-08 | 瑞典爱立信有限公司 | Uplink-downlink cooperative scheduling with beam steering and passive intermodulation awareness |
| CN111465042B (en) * | 2019-01-22 | 2022-01-14 | 华为技术有限公司 | Scheduling method and device |
| EP4005336A4 (en) * | 2019-07-24 | 2023-04-19 | Telefonaktiebolaget LM Ericsson (publ.) | Method and apparatus for resource scheduling |
| EP3911081A1 (en) * | 2020-05-04 | 2021-11-17 | Nokia Solutions and Networks Oy | Scheduling in wireless communication networks |
| CN113676196B (en) * | 2020-05-13 | 2023-02-03 | 华为技术有限公司 | Communication method and device |
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| CN102237924A (en) * | 2011-07-22 | 2011-11-09 | 京信通信系统（中国）有限公司 | Method and device for detecting interference of downlink in uplink of repeater |
| CN102833010A (en) * | 2012-08-10 | 2012-12-19 | 武汉虹信通信技术有限责任公司 | Passive intermodulation improvement method for base station signals of mobile communication system |
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| CN103188709B (en) * | 2011-12-28 | 2016-01-20 | 中国移动通信集团河北有限公司 | A kind of method of testing of Intermodulation Interference, Apparatus and system |
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| CN102237924A (en) * | 2011-07-22 | 2011-11-09 | 京信通信系统（中国）有限公司 | Method and device for detecting interference of downlink in uplink of repeater |
| CN102833010A (en) * | 2012-08-10 | 2012-12-19 | 武汉虹信通信技术有限责任公司 | Passive intermodulation improvement method for base station signals of mobile communication system |
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