CN106912112B - A kind of dispatching method and base station - Google Patents

Abstract

The embodiments of the present invention provide a scheduling method and a base station, which can correct the CQI value in time after the neighboring cell goes silent, so that the MCS value used for scheduling is more accurate, and thus the system throughput is improved. The method includes: after the first base station determines that the user equipment UE is an edge UE, sending a request message to the second base station to which the interfering cell of the UE belongs, to request the second base station to avoid interference resources; if the first base station determines that the second base station avoids Interference resources, the first base station stops using the first OLLA value to correct the CQI value reported by the UE, and caches the first OLLA value, and obtains the second OLLA value, and uses the second OLLA value to correct the CQI value reported by the UE to obtain the first CQI value, downlink scheduling is performed according to the first CQI value, wherein the first OLLA value is the OLLA value obtained by the channel condition before the first base station tracks the second base station to avoid interference resources, and the second OLLA value is the first base station tracks the second base station to avoid The OLLA value obtained from the channel condition after the interference resource. The invention is applicable to the technical field of communication.

Description

A scheduling method and base station

technical field

The present invention relates to the technical field of communications, in particular to a scheduling method and a base station.

Background technique

The long term evolution (Long Term Evolution, LTE) communication system solves the interference problem in the cell well through the Orthogonal Frequency Division Multiplexing (OFDM) technology, but the LTE communication system mostly adopts the same frequency networking mode to deploy the network. However, the available frequency resources of the current communication system are limited, so the inter-cell interference is still unavoidable, and the inter-cell interference will seriously affect the data rate of the cell edge users.

To solve this problem, the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) R11 protocol standard proposes a series of Coordinate Multiple Point Transmission Reception (CoMP) schemes. For LTE terminals supporting the R11 protocol, the CoMP solution can effectively reduce inter-cell interference and increase the data rate of cell edge users. However, there are still a large number of LTE terminals below the R11 version in the current network. Since such terminals do not support the R11 protocol, the inter-cell interference cannot be improved through the above-mentioned CoMP scheme. To this end, it is proposed that the user equipment (User Equipment, UE) at the edge of the cell measures the interference of adjacent cells through the cell specific reference signal (Cell Specific Reference Signal, CRS), and reports the measurement report to its own serving cell, so that its own serving cell will The resource scheduling information of the UE is notified to neighboring cells, so that the neighboring cells can avoid corresponding resources and reduce interference during scheduling.

However, this existing solution has at least the following problem: Although the adjacent cell can avoid the corresponding resources after receiving the interference avoidance request, so that the channel quality of the serving cell is improved, the serving cell cannot obtain the interference avoidance request in time. The channel quality indicator (Channel Quality Indicator, CQI) value, which is still based on the CQI value in the last measured interference state during scheduling, which will inevitably affect the modulation and coding strategy (Modulation and Coding Scheme, MCS) value used in scheduling Serious misjudgment is caused, which in turn affects cell throughput.

Contents of the invention

To this end, the embodiments of the present invention provide a scheduling method and a base station, which can correct the CQI value in time after the neighboring cells are silent, so that the MCS value used for scheduling is more accurate, and thus the system throughput is improved.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In the first aspect, a scheduling method is provided, including:

After determining that the user equipment UE is an edge UE, the first base station sends a request message to a second base station to which the interfering cell of the UE belongs, so as to request the second base station to avoid interference resources;

If the first base station determines that the second base station avoids the interference resource, the first base station stops using the first OLLA value to correct the CQI value reported by the UE, and caches the first OLLA value, as well as,

Obtain a second OLLA value, and use the second OLLA value to correct the CQI value reported by the UE to obtain a first CQI value, and perform downlink scheduling according to the first CQI value, where the first OLLA value is the The OLLA value obtained by the first base station tracking the channel condition before the second base station avoids the interference resource, and the second OLLA value is the channel condition after the first base station tracks the second base station avoiding the interference resource The resulting OLLA value.

In a second aspect, a base station is provided, including: a processing unit and a sending unit;

The processing unit is configured to determine whether the user equipment UE is an edge UE;

The sending unit is configured to send a request message to another base station after the processing unit determines that the UE is an edge UE, so as to request the other base station to avoid interference resources; the other base station is the UE's The base station to which the interfering cell belongs;

The processing unit is further configured to stop using the first OLLA value to correct the CQI value reported by the UE when it is determined that the other base station avoids the interference resource, and cache the first OLLA value, and, Obtain a second OLLA value, and use the second OLLA value to correct the CQI value reported by the UE to obtain a first CQI value, and perform downlink scheduling according to the first CQI value, where the first OLLA value is the The OLLA value obtained by the base station tracking the channel condition before the other base station avoids the interference resource, and the second OLLA value is the OLLA value obtained by the base station tracking the channel condition after the other base station avoids the interference resource .

In the prior art, although the adjacent cell can avoid the corresponding interference resources in time, so that the channel quality of the serving cell is improved, the serving cell cannot obtain the CQI value after the interference avoidance in time, and the scheduling is still based on the interference measured last time The CQI value in the state, and the MCS value selected according to the lower CQI value will be lower than the tolerable MCS value of the channel, so that the system will not fully utilize the channel resources, thereby reducing the system throughput.

However, based on the scheduling method and the base station provided by the embodiments of the present invention, before the base station of the adjacent cell avoids the interference resource, the CQI value reported by the UE is corrected according to the first OLLA value obtained by tracking the channel status, and the base station of the adjacent cell avoids the interference resource. After the interference resource is obtained, the second OLLA value is obtained according to the channel condition after tracking the interference resource, and the CQI value reported by the UE is corrected according to the second OLLA value. That is, the scheduling method and the base station provided by the embodiment of the present invention track channel changes through the dual OLLA mechanism, and correct the CQI value reported by the UE in real time according to the channel condition, so that the CQI value can accurately represent the current state of the channel, so compared with the existing technology, the channel quality represented by the modified CQI value in the embodiment of the present invention is more accurate, so the MCS value selected according to the modified CQI value is closer to the channel tolerable MCS value, so it can be more fully Use channel resources to improve system throughput.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is an interactive schematic diagram 1 of a scheduling method provided by an embodiment of the present invention;

FIG. 2 is an interactive schematic diagram II of a scheduling method provided by an embodiment of the present invention;

FIG. 3 is a third interactive schematic diagram of a scheduling method provided by an embodiment of the present invention;

FIG. 4 is a first schematic structural diagram of a base station provided by an embodiment of the present invention;

FIG. 5 is a second schematic structural diagram of a base station provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

It should be noted that, in order to clearly describe the technical solutions of the embodiments of the present invention, in the following embodiments of the present invention, words such as "first" and "second" are used to refer to the same items or items with basically the same functions and effects. Similar items are distinguished, and those skilled in the art can understand that words such as "first" and "second" do not limit the number and execution order.

In addition, it should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Those skilled in the art can understand that the examples shown in the embodiments of the present application are schematic descriptions of the present invention for the convenience of readers to understand, and do not constitute limitations of the present invention.

Embodiment one,

An embodiment of the present invention provides a scheduling method, as shown in Figure 1, including:

S101. After determining that the user equipment UE is an edge UE, the first base station sends a request message to a second base station to which an interfering cell of the UE belongs, so as to request the second base station to avoid interference resources.

Wherein, the request message carries the information of the interference resources requested to be avoided. It is easy to understand that the interference resources are part of the time-frequency resources (that is, resource blocks (Resource Block, RB)) used by the first base station to send downlink data to the UE.

S102. The second base station receives the request message sent by the first base station, and judges whether to avoid interference resources according to its own load condition.

S103. If the second base station determines to avoid the interference resource, silence the interference resource when performing resource scheduling.

S104. The second base station sends a first notification message to the first base station to inform the first base station that the interference resource is avoided.

S105. The first base station receives the first notification message sent by the first base station, determines that the second base station avoids interference resources, stops using the first OLLA value to correct the CQI value reported by the UE, and caches the first OLLA value.

Wherein, the first OLLA value is an OLLA value obtained by the first base station tracking the channel condition before the second base station avoids the interference resource.

S106. The first base station acquires the second OLLA value, and uses the second OLLA value to correct the CQI value reported by the UE to obtain the first CQI value, and performs downlink scheduling according to the first CQI value.

Wherein, the second OLLA value is an OLLA value obtained by the first base station tracking the channel condition after the second base station avoids interference resources.

That is, before the second base station avoids the interference resource, the first base station uses the OLLA mechanism in the interference state to correct the CQI value for downlink scheduling, and after the second base station avoids the interference resource, the first base station immediately uses the OLLA mechanism in the non-interference state Correct the CQI value for downlink scheduling.

It should be noted that those skilled in the art can easily understand that in the above scheduling method, if the second base station decides not to perform interference avoidance according to its own load, it may send a notification message not to perform interference avoidance to the first base station, so that the second base station A base station continues to correct the CQI value reported by the UE according to the first OLLA value, and then performs downlink scheduling according to the corrected CQI value.

Of course, the above-mentioned notification method is only an exemplary description given by the embodiment of the present invention, and those skilled in the art can understand that the first base station and the second base station can also agree on a specific notification method, and then execute it according to the agreed method For example, it can be stipulated that when the second base station decides not to avoid interference, it will not make any response. If the first base station does not receive the notification message sent by the second base station within a predetermined time, it is considered that the second base station does not perform interference avoidance. The implementation of the present invention The example does not specifically limit this.

Specifically, the first base station performs downlink scheduling according to the first CQI value, which may specifically include:

The first base station calculates and obtains the metric value of the UE according to the first CQI value and the throughput throughput of the UE within a preset period of time, and determines a modulation and coding strategy MCS value corresponding to the metric value of the UE;

The first base station determines a modulation and coding scheme according to the MCS value, and schedules the UE to perform downlink data transmission according to the determined modulation and coding scheme.

Exemplarily, the first base station may specifically calculate the metric value of the UE according to the following formula (1):

Formula 1)

In the formula, metric represents the metric value of the UE, CQI represents the first CQI, and TP represents the throughput of the UE within a preset period of time.

In the prior art, although the adjacent cell can avoid the corresponding interference resources in time, so that the channel quality of the serving cell is improved, the serving cell cannot obtain the CQI value after the interference avoidance in time, and the scheduling is still based on the interference measured last time The CQI value in the state, and the MCS value selected according to the lower CQI value will be lower than the tolerable MCS value of the channel, so that the system will not fully utilize the channel resources, thereby reducing the system throughput.

However, in the scheduling method provided by the embodiment of the present invention, before the base station of the adjacent cell avoids the interference resource, the CQI value reported by the UE is corrected according to the first OLLA value obtained by tracking the channel condition, and the interference resource is avoided by the base station of the adjacent cell Afterwards, the CQI value reported by the UE is corrected according to the second OLLA value obtained from the channel condition after the interference resource is tracked. That is, the scheduling method provided by the embodiment of the present invention tracks channel changes through the dual OLLA mechanism, and corrects the CQI value reported by the UE in real time according to the channel condition, so that the CQI value can accurately represent the current state of the channel. Therefore, compared with the prior art, The channel quality represented by the modified CQI value in the embodiment of the present invention is more accurate, so the MCS value selected according to the modified CQI value is closer to the channel tolerable MCS value, so the channel can be more fully utilized resources and improve system throughput.

At the same time, the scheduling method provided by the embodiment of the present invention can be implemented based on the feedback mechanism of the existing R8 LTE terminal without changing the characteristics of the terminal, and the implementation is simple.

Preferably, as shown in Figure 2, the scheduling method provided by the embodiment of the present invention may also include:

S107. The second base station stops avoiding interference resources.

S108. The second base station sends a second notification message to the first base station to inform the first base station that avoidance of interference resources has stopped.

S109. The first base station receives the second notification message, determines that the second base station stops avoiding interference resources, stops using the second OLLA value to correct the CQI value reported by the UE, and caches the second OLLA value.

S110. The first base station acquires the cached first OLLA value, and uses the first OLLA value to correct the CQI value reported by the UE to obtain a second CQI value, and performs downlink scheduling according to the second CQI value.

That is, after the second base station stops avoiding interference resources, immediately disable the OLLA mechanism in the interference state, and enable the OLLA mechanism in the interference state to correct the CQI value reported by the UE for downlink scheduling.

Optionally, as shown in FIG. 3, in the scheduling method provided by the embodiment of the present invention, after the first base station determines that the user equipment UE is a cell edge user, it sends a request message to the second base station to which the interfering cell of the UE belongs (that is, step S101 ) before, can also include:

S111. The UE sends a measurement report to the first base station.

Wherein, the measurement report carries the first reference signal received power RSRP value of the own cell measured by the UE and the second RSRP values of N neighboring cells; wherein, the present cell is the coverage cell of the first base station, and the neighboring cell is the Adjacent cells, N is an integer, N≥1.

S112. The first base station receives the measurement report reported by the UE, and determines whether the UE is an edge UE of the current cell and an interfering cell of the UE according to the first RSRP value and the second RSRP value.

Specifically, in step S112, the first base station determines whether the UE is an edge UE of the current cell and an interfering cell of the UE according to the first RSRP value and the second RSRP value, which may specifically include:

The first base station calculates the difference between the first RSRP value and the second RSRP value according to the first RSRP value and the second RSRP value;

The first base station determines whether the difference is within a preset interval, and if the difference is within the preset interval, determines that the UE is an edge UE of the current cell, and the neighboring cell corresponding to the second RSRP value is an interfering cell of the UE.

It should be understood that the above description is only a specific implementation method for determining whether the UE is an edge UE and the interfering cell of the UE provided by the embodiment of the present invention. Those skilled in the art can easily understand that there are many other implementations in the prior art. The method is not specifically limited in this embodiment of the present invention.

In the prior art, although the adjacent cell can avoid the corresponding interference resources in time, so that the channel quality of the serving cell is improved, the serving cell cannot obtain the CQI value after the interference avoidance in time, and the scheduling is still based on the interference measured last time The CQI value in the state, and the MCS value selected according to the lower CQI value will be lower than the tolerable MCS value of the channel, so that the system will not fully utilize the channel resources, thereby reducing the system throughput.

However, based on the scheduling method provided by the embodiment of the present invention, before the base station belonging to the neighboring cell avoids the interference resource, the CQI value reported by the UE is corrected according to the first OLLA value obtained by tracking the channel condition, and the base station belonging to the neighboring cell avoids the interference resource Afterwards, the CQI value reported by the UE is corrected according to the second OLLA value obtained from the channel condition after the interference resource is tracked. That is, the scheduling method provided by the embodiment of the present invention tracks channel changes through the dual OLLA mechanism, and corrects the CQI value reported by the UE in real time according to the channel condition, so that the CQI value can accurately represent the current state of the channel. Therefore, compared with the prior art, The channel quality represented by the modified CQI value in the embodiment of the present invention is more accurate, so the MCS value selected according to the modified CQI value is closer to the channel tolerable MCS value, so the channel can be more fully utilized resources and improve system throughput.

Embodiment two,

An embodiment of the present invention provides a base station 40 , as shown in FIG. 4 , including: a processing unit 401 and a sending unit 402 .

Wherein, the processing unit 401 is configured to determine whether the user equipment UE is an edge UE.

The sending unit 402 is configured to send a request message to another base station to request another base station to avoid interference resources after the processing unit 401 determines that the UE is an edge UE; the other base station is the base station 40 to which the interfering cell of the UE belongs.

The processing unit 401 is further configured to stop using the first OLLA value to correct the CQI value reported by the UE when it is determined that another base station avoids the interference resource, and cache the first OLLA value, and obtain a second OLLA value, and use the second OLLA value Correct the CQI value reported by the UE to obtain the first CQI value, and perform downlink scheduling according to the first CQI value, wherein the first OLLA value is the OLLA value obtained by the base station 40 tracking the channel condition before another base station avoids interference resources, and the second OLLA value The value is the OLLA value obtained by the base station 40 tracking the channel condition after another base station avoids interference resources.

It is easy to understand that the base station 40 in the embodiment of the present invention is the first base station 40 in the first embodiment, and the other base station is the second base station 40 in the first embodiment.

Preferably, in the base station 40 provided in the embodiment of the present invention, the processor can also be used for:

After determining that another base station stops avoiding interference resources, stop using the second OLLA value to correct the CQI value reported by the UE, and cache the second OLLA value, and,

Acquire the cached first OLLA value, and use the first OLLA value to correct the CQI value reported by the UE to obtain a second CQI value, and perform downlink scheduling according to the second CQI value.

Further, as shown in FIG. 5 , the base station 40 provided in this embodiment of the present invention may further include: a receiving unit 403 .

The receiving unit 403 is configured to receive a measurement report reported by the UE before the processing unit 401 sends a request message to another base station to which the interfering cell of the UE belongs, and the measurement report carries the first reference signal received power RSRP value of the cell measured by the UE and the second RSRP values of N adjacent cells, wherein, the current cell is the coverage cell of the base station 40, and the adjacent cells are the adjacent cells to the current cell, N is an integer, and N≥1.

The processing unit 401 is further configured to determine whether the UE is an edge UE of the current cell and an interfering cell of the UE according to the first RSRP value and the second RSRP value.

Specifically, in the base station 40 provided in the embodiment of the present invention, the processing unit 401 may specifically be used for:

calculating a difference between the first RSRP value and the second RSRP value according to the first RSRP value and the second RSRP value;

Determine whether the difference is within a preset interval, and if the difference is within a preset interval, determine that the UE is an edge UE of the current cell, and the neighboring cell corresponding to the second RSRP value is an interfering cell of the UE.

More specifically, in the base station 40 provided in the embodiment of the present invention, the processing unit 401 may be used to:

Calculate and obtain a metric value of the UE according to the first CQI value and the throughput of the UE within a preset duration, and determine a modulation and coding strategy MCS value corresponding to the metric value of the UE;

Determine the modulation and coding scheme according to the MCS value, and schedule the UE to perform downlink data transmission according to the determined modulation and coding scheme.

It should be noted that, for the specific steps of performing downlink scheduling using the base station 40 provided by the embodiment of the present invention, reference may be made to the description of Embodiment 1 of the present invention, which will not be repeated here.

In the prior art, although the adjacent cell can avoid the corresponding interference resources in time, so that the channel quality of the serving cell is improved, the serving cell cannot obtain the CQI value after the interference avoidance in time, and the scheduling is still based on the interference measured last time The CQI value in the state, and the MCS value selected according to the lower CQI value will be lower than the tolerable MCS value of the channel, so that the system will not fully utilize the channel resources, thereby reducing the system throughput.

However, based on the base station provided by the embodiment of the present invention, before the base station belonging to the adjacent cell avoids the interference resource, the CQI value reported by the UE is corrected according to the first OLLA value obtained by tracking the channel condition, and the base station belonging to the adjacent cell avoids the interference resource. , that is, the second OLLA value obtained according to the channel condition after the interference resource is tracked, and the CQI value reported by the UE is corrected according to the second OLLA value. That is, the base station provided by the embodiment of the present invention tracks channel changes through the dual OLLA mechanism, and corrects the CQI value reported by the UE in real time according to the channel condition, so that the CQI value can accurately represent the current state of the channel. Therefore, compared with the prior art, this In the embodiment of the invention, the channel quality represented by the corrected CQI value is more accurate, so the MCS value selected according to the corrected CQI value is closer to the tolerable MCS value of the channel, so channel resources can be more fully utilized , improve system throughput.

It should be understood that in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of each process should be determined by its functions and internal logic, rather than by the embodiment of the present invention. The implementation process constitutes any limitation.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the device described above is only illustrated by the division of the above-mentioned functional modules. In practical applications, the above-mentioned functions can be allocated by different Completion of functional modules means that the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the above-described systems, devices, and units, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (English: Read-Only Memory, abbreviated: ROM), random access memory (English: Random Access Memory, abbreviated: RAM), magnetic disk or optical disc, etc. A medium on which program code can be stored.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. a kind of dispatching method characterized by comprising

After first base station determines that user equipment (UE) is edge UE, the second base station belonging to the interfered cell of Xiang Suoshu UE sends request Message, to request second base station to evade jamming resource；

If the first base station determines that the jamming resource has been evaded in second base station, the first base station stops using first OLLA value corrects the CQI value that the UE is reported, and caches the first OLLA value, and,

The 2nd OLLA value is obtained, and corrects the CQI value that the UE is reported using the 2nd OLLA value and obtains the first CQI value, root Descending scheduling is carried out according to first CQI value, wherein the first OLLA value is that the first base station tracks second base station The OLLA value that channel conditions before evading the jamming resource obtain, the 2nd OLLA value track institute for the first base station It states the second base station and evades the OLLA value that the channel conditions after the jamming resource obtain.

2. the method according to claim 1, wherein the method also includes:

If the first base station determines that second base station stops evading the jamming resource, the first base station stops using institute It states the 2nd OLLA value and corrects the CQI value that the UE is reported, and cache the 2nd OLLA value, and,

The first OLLA value of caching is obtained, and corrects the CQI value that the UE is reported using the first OLLA value and obtains the Two CQI values carry out descending scheduling according to second CQI value.

3. method according to claim 1 or 2, which is characterized in that in the first base station to the interfered cell of the UE Before the second affiliated base station sends request message, the method also includes:

The first base station receives the measurement report that the UE is reported, and the measurement report carries this cell that the UE is measured The first Reference Signal Received Power RSRP value and N number of adjacent cell the 2nd RSRP value；Wherein, described cell is described first The coverage cell of base station, the adjacent cell are the cell adjacent with described cell, and N is integer, N >=1；

The first base station according to the first RSRP value and the 2nd RSRP value, determine the UE whether be described cell side The interfered cell of edge UE and the UE.

4. according to the method described in claim 3, it is characterized in that, the first base station is according to the first RSRP value and described 2nd RSRP value, determine the UE whether be described cell edge UE and the UE interfered cell, comprising:

The first RSRP value and institute is calculated according to the first RSRP value and the 2nd RSRP value in the first base station State the difference of the 2nd RSRP value；

The first base station determines the difference whether in pre-set interval, if the difference in the pre-set interval, determines The UE is the edge UE of described cell, the interfered cell that the corresponding adjacent cell of the 2nd RSRP value is the UE.

5. according to claim 1 or 2 or 4 described in any item methods, which is characterized in that the first base station is according to described first CQI value carries out descending scheduling, comprising:

Handling capacity of the first base station according to first CQI value and the UE in preset duration calculates described in obtaining The metric value of UE, and determine modulation corresponding with the metric value of the UE and coding strategy MCS value；

The first base station determines modulation coding scheme according to the MCS value, and is dispatched by identified modulation coding scheme The UE carries out downlink data transmission.

6. a kind of base station characterized by comprising processing unit and transmission unit；

The processing unit, for determining whether user equipment (UE) is edge UE；

The transmission unit, for sending request to another base station and disappearing after the processing unit determines that the UE is edge UE Breath, to request another base station to evade jamming resource；Another base station is base station belonging to the interfered cell of the UE；

The processing unit is also used to determining that another base station evaded the jamming resource, stops using the first OLLA Value corrects the CQI value that the UE is reported, and caches the first OLLA value, and, obtain the 2nd OLLA value, and use described the Two OLLA values correct the CQI value that the UE is reported and obtain the first CQI value, carry out descending scheduling according to first CQI value, In, the first OLLA value is that the channel conditions before the jamming resource is evaded in another base station described in the base station tracks obtain OLLA value, the 2nd OLLA value be the base station tracks described in another base station evade the channel shape after the jamming resource The OLLA value that condition obtains.

7. base station according to claim 6, which is characterized in that the processing unit is also used to:

After determining that another base station stops evading the jamming resource, the 2nd OLLA value is stopped using to correct the UE The CQI value reported, and the 2nd OLLA value is cached, and,

The first OLLA value of caching is obtained, and corrects the CQI value that the UE is reported using the first OLLA value and obtains the Two CQI values carry out descending scheduling according to second CQI value.

8. base station according to claim 6 or 7, which is characterized in that the base station further include: receiving unit；

The receiving unit disappears for sending request to another base station belonging to the interfered cell of the UE in the processing unit Before breath, the measurement report that the UE is reported is received, the measurement report carries first ginseng of this cell that the UE is measured Examine the 2nd RSRP value of signal reception power RSRP value and N number of adjacent cell；Wherein, described cell is that the covering of the base station is small Area, the adjacent cell are the cell adjacent with described cell, and N is integer, N >=1；

The processing unit is also used to determine whether the UE is described according to the first RSRP value and the 2nd RSRP value The interfered cell of the edge UE and the UE of cell.

9. base station according to claim 8, which is characterized in that the processing unit is specifically used for:

According to the first RSRP value and the 2nd RSRP value, the first RSRP value and the 2nd RSRP value is calculated Difference；

The difference is determined whether in pre-set interval, if the difference in the pre-set interval, determines that the UE is described The edge UE of this cell, the interfered cell that the corresponding adjacent cell of the 2nd RSRP value is the UE.

10. according to claim 6 or 7 or 9 described in any item base stations, which is characterized in that the processing unit is specifically used for:

According to the handling capacity of first CQI value and the UE in preset duration, the metric value for obtaining the UE is calculated, And determine modulation corresponding with the metric value of the UE and coding strategy MCS value；

Modulation coding scheme is determined according to the MCS value, and the UE is dispatched by identified modulation coding scheme and is carried out down The transmission of row data.