WO2016023452A1

WO2016023452A1 - Time slot allocation self-adaption method, controller and base station

Info

Publication number: WO2016023452A1
Application number: PCT/CN2015/086527
Authority: WO
Inventors: 陈卫华; 陈卫民; 张伟; 刘云
Original assignee: 华为技术有限公司
Priority date: 2014-08-12
Filing date: 2015-08-10
Publication date: 2016-02-18
Also published as: CN105392199A; CN105392199B

Abstract

Embodiments of the present invention provide a time slot allocation self-adaptation method, controller and base station. The time slot allocation self-adaptation method provided in the embodiments of the present invention comprises: receiving a first candidate allocation sent from a first base station, and receiving a second candidate allocation sent from a second base station, the first candidate allocation including at least one time slot allocation determined by the first base station according to the uplink and downlink information of the first cell, and the second candidate allocation including at least one time slot allocation determined by the second base station according to the uplink and downlink information of the second cell; determining an optimal time slot allocation of the first cell and an optimal time slot time slot allocation of the second cell utilizing the minimizing cross sub-frame principle according to the first candidate allocation and the second candidate allocation; sending the optimal time slot allocation of the first cell to the first base station, and sending the optimal time slot allocation of the second cell to the second base station. With the embodiments of the present invention, the cross time slot interference between neighbour cells can be reduced, and the throughput of the cells can be increased.

Description

Time slot matching adaptive method, controller and base station

This application claims priority to Chinese Patent Application No. 201410393607.0, filed on Aug. 12, 2014, entitled "Slot Time Ratio Adaptive Method, Controller and Base Station", the entire contents of which are incorporated by reference. In this application.

Technical field

The embodiments of the present invention relate to communication technologies, and in particular, to a time slot ratio adaptation method, a controller, and a base station.

Background technique

The Long Term Evolution (LTE) system is a transition between the third-generation (3G) mobile communication system and its future mobile communication system, including Time Division Duplexing (TDD) LTE. A system with two modes of Frequency Division Duplexing (FDD) LTE. The Time Division-Long Term Evolution (TD-LTE) system belongs to a TDD LTE system.

In the prior art, for each cell in the TD-LTE system, an appropriate ratio can be selected according to its own service condition, and if the neighboring cell uses different time slot ratios, there will be “cross-slot interference”. FIG. 1 is a schematic diagram of a network for transmitting uplink and downlink information by using the prior art. As shown in FIG. 1 , when one cell uses one time slot to transmit an uplink signal and the other cell uses the same time slot to transmit a downlink signal, the base station and the base station of the two cells and the user equipment (User Equipment, UE for short) There is an interference signal between the UE and the UE.

The prior art slot ratio adaptation scheme can improve the throughput of the cell by considering the own service condition of the cell, and the "cross-slot interference" between the adjacent cells is emphasized, thereby restricting the book. The increase in cell throughput affects the overall performance of the system.

Summary of the invention

The embodiments of the present invention provide a time slot ratio adaptation method, a controller, and a base station, to solve the problem that the cross-slot interference of the neighboring cells in the prior art is restricted by the improvement of the cell throughput.

In a first aspect, an embodiment of the present invention provides a time slot ratio adaptation method, including:

The controller receives the first candidate ratio sent by the first base station, and receives the second candidate ratio sent by the second base station, where the first candidate ratio includes the first base station determining according to the uplink and downlink information of the first cell. At least one time slot ratio; the second candidate ratio includes: at least one time slot ratio determined by the second base station according to uplink and downlink information of the second cell; the second cell includes the first Any adjacent cell of the cell;

Determining, by the first candidate ratio and the second candidate ratio, the optimal subframe ratio of the first cell, and the most Excellent time slot ratio;

The controller sends an optimal time slot ratio of the first cell to the first base station, and sends an optimal time slot ratio of the second cell to the second base station.

According to the first aspect, in a first possible implementation manner of the first aspect, the controller determines, by using a cross-subframe minimum principle, according to the first candidate ratio and the second candidate ratio The optimal time slot ratio of the cell and the optimal time slot ratio of the second cell include:

Determining, by the controller, the optimal time slot ratio corresponding to the two-two combination according to the preset minimum number of cross-subframes of the at least two candidate ratios; wherein the at least two candidate matches The ratio includes: the first candidate ratio and the second candidate ratio;

The controller generates a matching mapping table according to an optimal time slot ratio corresponding to the two pairs of combinations;

Determining, by the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and a most Excellent time slot ratio.

According to the first possible implementation manner of the first aspect, in a second possible implementation, the controller has a minimum number of cross subframes according to the preset at least two candidate ratios Before determining the optimal time slot ratio corresponding to the two-two combination, the method further includes:

The controller calculates an uplink-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios;

Determining, by the controller, at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio;

The controller obtains, according to a preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratios have a combination of two to two; wherein the ratio subframe table includes different slot ratios The number of crossed sub-frames.

According to the second possible implementation manner of the first aspect, in a third possible implementation manner, the controller obtains, according to the preset ratio subframe table, the nine candidate ratios that the two-two combination has Before the minimum number of sub-frames, it also includes:

The controller determines, according to the combination of two slots, the number of cross subframes that the different slot ratios have;

The controller generates the ratio subframe table according to the number of cross subframes that the different slot ratios have.

According to any one of the first aspect to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the controller is another base station in the current network except the first base station. Correspondingly, the receiving, by the controller, the first candidate ratio sent by the first base station includes:

The controller receives the first candidate ratio that is sent by the first base station through an X2 interface.

According to any one of the first aspect to the third possible implementation manner of the first aspect, in a fifth possible implementation manner, the controller is a superior network node of any cell base station in the current network;

Correspondingly, the receiving, by the controller, the first candidate ratio sent by the first cell base station includes:

The controller receives the first candidate ratio that is sent by the first cell base station through an S1 interface.

In a second aspect, an embodiment of the present invention provides a time slot ratio adaptation method, including:

Determining, by the first base station, a first candidate ratio according to uplink and downlink information of the first cell; the first candidate ratio includes at least one time slot ratio;

Transmitting, by the first base station, the first candidate ratio to a controller, so that the controller determines, by using a cross-subframe minimum principle, according to the first candidate ratio and the second candidate ratio An optimal slot ratio of a cell, where the second candidate ratio includes at least one slot ratio determined by the second base station according to uplink and downlink information of the second cell; and the second cell includes the Any adjacent cell of a cell;

The first base station receives an optimal time slot ratio of the first cell sent by the controller.

According to the second aspect, in a first possible implementation manner of the second aspect, the determining, by the first base station, the first candidate ratio according to the uplink and downlink information of the first cell, includes:

The first base station calculates an uplink-downlink ratio of the first cell according to the uplink and downlink information of the first cell;

Determining, by the first base station, the first candidate ratio according to an uplink-downlink ratio of the first cell and a preset candidate ratio table; the candidate ratio table includes: a candidate ratio corresponding to an uplink-downlink ratio interval .

According to the first possible implementation manner of the second aspect, in a second possible implementation manner, the first base station determines, according to the uplink and downlink ratio of the first cell and a preset candidate ratio table, The first candidate ratio includes:

The first base station calculates an uplink-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios;

Determining, by the first base station, at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; each candidate ratio includes at least one slot ratio;

The first base station generates the candidate ratio table according to the at least nine candidate ratios.

In a third aspect, an embodiment of the present invention provides a time slot ratio adaptation method, including:

The controller determines, according to the load of the first cell and the preset load threshold, whether the load of the first cell is exceeded;

If the load of the first cell is not exceeded, the controller determines the first candidate ratio and the first cell according to the uplink and downlink information of the first cell and the uplink and downlink information of the second cell, respectively. a second candidate ratio of the second cell, where the second cell includes any neighboring cell of the first cell; the first candidate ratio includes at least one slot ratio, the second The candidate ratio includes at least one time slot ratio;

Determining, by the first candidate ratio and the second candidate ratio, the optimal slot ratio of the first cell and the optimality of the second cell according to the first candidate ratio and the second candidate ratio Time slot ratio

The controller sends the optimal time slot ratio of the first cell to the first base station, and sends the optimal time slot ratio of the second cell to the second base station.

According to the third aspect, in a first possible implementation manner of the third aspect, the controller determines, according to the load of the first cell and a preset load threshold, whether the load of the first cell exceeds a limit, Also includes:

The controller receives uplink and downlink information of the first cell sent by the first base station, and receives uplink and downlink information of the second cell sent by the second base station;

The controller determines the load of the first cell according to the uplink and downlink information of the first cell, and determines the load of the second cell according to the uplink and downlink information of the second cell.

According to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner, the controller adopts a cross according to the first candidate ratio and the second candidate ratio Determining the optimal slot ratio of the first cell and the optimal slot ratio of the second cell include:

The controller is configured according to the first candidate ratio, the second candidate ratio, and the ratio ratio mapping And generating a table, determining an optimal time slot ratio of the first cell, and an optimal time slot ratio of the second cell.

According to the second possible implementation manner of the third aspect, in a third possible implementation, the controller determines, according to the preset minimum number of cross subframes of the at least two candidate ratios Before the pairwise combination corresponding to the optimal time slot ratio, the method further includes:

According to a third possible implementation manner of the third aspect, in a fourth possible implementation manner, the controller obtains, according to a preset ratio subframe table, the at least nine candidate ratios, the two-two combination has Before the minimum number of cross-subframes, it also includes:

According to any one of the third aspect to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the controller sends the optimal time slot ratio of the first cell Sending, to the first base station, the optimal time slot ratio of the second cell to the second base station includes:

The controller sends the optimal time slot ratio of the first cell to the first base station in a unicast manner, and sends the optimal time slot ratio of the second cell to the Second base station.

According to any one of the third aspect to the fifth possible implementation manner of the third aspect, In six possible ways, the method further includes:

If the load of the first cell is exceeded, the controller determines an optimal slot ratio of the first cell according to uplink and downlink information of the first cell; and an optimal slot of the second cell Ratio is the optimal time slot ratio of the first cell;

Correspondingly, the controller sends the optimal time slot ratio of the first cell to the first base station, and the optimal time slot ratio of the second cell to the second base station includes:

And the controller sends the optimal time slot ratio of the first cell to the first base station and the second base station by using a broadcast manner.

According to any one of the third aspect to the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner, the controller determines, according to a load of the first cell and a preset load threshold Whether the load of the first cell exceeds the limit, including:

The controller determines whether the load of the first cell is the largest by comparing the load of the first cell with the load of the second cell;

If the load of the first cell is the largest, the controller determines a total cell load according to the load of the first cell and the load of the second cell;

The controller obtains a ratio of a load of the first cell to a load of the total cell, and determines a ratio of a load of the first cell to a load of the total cell and a size of the load threshold;

If the ratio of the load of the first cell to the total cell load is greater than the load threshold, the controller determines that the load of the first cell is exceeded.

In a fourth aspect, an embodiment of the present invention provides a time slot ratio adaptation method, including:

The first base station sends uplink and downlink information of the first cell to the controller;

According to the fourth aspect, in a first possible implementation manner of the fourth aspect, if the load of the first cell is not exceeded, the optimal ratio of the first cell is determined by the controller according to the The uplink and downlink information of a cell and the uplink and downlink information of the second cell respectively determine a first candidate ratio and a second candidate ratio, and adopt a cross subframe according to the first candidate ratio and the second candidate ratio Minimum principle, the determined time slot ratio;

The first candidate ratio is a candidate ratio of the first cell, including at least one slot ratio, and the second candidate ratio is a candidate ratio of the second cell, including at least one time. a slot ratio; wherein the second cell includes any neighboring cell of the first cell.

According to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the first base station receives an optimal time slot configuration of the first cell sent by the controller Ratio includes:

The first base station receives the optimal slot ratio of the first cell that is sent by the controller in a unicast manner.

According to any one of the fourth aspect to the second possible implementation manner of the fourth aspect, in a third possible implementation manner, if the load of the first cell is exceeded, the first cell is the most The optimal slot ratio is the slot ratio determined by the controller according to the uplink and downlink information of the first cell.

According to the second possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the first base station receiving the optimal time slot ratio of the first cell sent by the controller includes:

The first base station receives an optimal time slot ratio of the first cell that is sent by the controller by using a broadcast manner.

In a fifth aspect, an embodiment of the present invention provides a controller, including:

a receiving module, configured to receive a first candidate ratio sent by the first base station, and receive a second candidate ratio that is sent by the second base station, where the first candidate ratio includes the first base station according to the upper and lower sides of the first cell At least one time slot ratio determined by the row information; the second candidate ratio includes: at least one time slot ratio determined by the second base station according to uplink and downlink information of the second cell; Said any adjacent cell of the first cell;

a determining module, configured to determine, according to the first candidate ratio and the second candidate ratio, an optimal slot ratio of the first cell, and a second cell by using a cross-subframe minimum principle Optimal time slot ratio;

And a sending module, configured to send an optimal time slot ratio of the first cell to the first base station, and send an optimal time slot ratio of the second cell to the second base station.

According to the fifth aspect, in a first possible implementation manner of the fifth aspect, the determining module includes:

a determining unit, configured to determine an optimal time slot ratio corresponding to the two-two combination according to a preset minimum number of cross-subframes of the at least two candidate ratio combinations; wherein the at least two candidates The ratio includes: the first candidate ratio and the second candidate ratio;

a generating unit, configured to generate a matching mapping table according to an optimal time slot ratio corresponding to the two pairs of combinations;

The determining unit is further configured to determine an optimal slot ratio of the first cell according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, and the first The optimal time slot ratio of the two cells.

According to the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the determining module further includes:

a calculating unit, configured to determine, according to the preset minimum number of cross subframes that the preset at least two candidate ratios have a minimum number of cross subframes, determine an optimal time slot ratio corresponding to the two two combinations Previously, calculating the uplink-downlink ratio of all time slot ratios of the current system;

An obtaining unit, configured to obtain at least 9 uplink and downlink ratio intervals according to the uplink and downlink ratios of all the slot ratios;

The determining unit is further configured to determine, according to the at least 9 uplink and downlink ratio intervals, at least 9 candidate ratios; wherein each candidate ratio includes at least one slot ratio;

The obtaining unit is further configured to obtain, according to a preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratios have a combination of two to two; wherein the ratio subframe table includes At the same time, the number of intersecting sub-frames of the gap ratio.

According to a second possible implementation manner of the fifth aspect, in a third possible implementation manner, the determining unit is further configured to obtain, according to the preset ratio subframe table, the acquiring unit Before the nine candidate ratios have a minimum number of cross-subframes, the all-time slot ratios are determined in a pairwise manner to determine the number of cross-subframes in different time slot ratios;

The generating unit is further configured to generate the ratio subframe table according to the number of cross subframes that the different slot ratios have.

According to any one of the fifth possible implementation manners of the fifth aspect to the fifth aspect, in a fourth possible implementation manner, the controller is another base station in the current network except the first base station ;

The receiving module is further configured to receive the first candidate ratio that is sent by the first base station by using an X2 interface.

According to any one of the fifth possible implementation manners of the fifth aspect to the fifth aspect, in a fifth possible implementation manner, the controller is a superior network node of any cell base station in the current network;

The receiving module is further configured to receive the first candidate ratio that is sent by the first cell base station by using an S1 interface.

In a sixth aspect, an embodiment of the present invention provides a base station, including:

a determining module, configured to determine a first candidate ratio according to uplink and downlink information of the first cell; the first candidate ratio includes at least one time slot ratio;

a sending module, configured to send the first candidate ratio to a controller, so that the controller determines, by using a cross-subframe minimum principle, according to the first candidate ratio and the second candidate ratio An optimal slot ratio of a cell, where the second candidate ratio includes at least one slot ratio determined by the second base station according to uplink and downlink information of the second cell; and the second cell includes the Any adjacent cell of a cell;

And a receiving module, configured to receive an optimal time slot ratio of the first cell sent by the controller.

According to the sixth aspect, in a first possible implementation manner of the sixth aspect, the determining module includes:

a calculating unit, configured to calculate, according to the uplink and downlink information of the first cell, the first cell Up/down ratio;

a determining unit, configured to determine the first candidate ratio according to an uplink-downlink ratio of the first cell and a preset candidate ratio table; the candidate ratio table includes: a candidate ratio corresponding to an uplink-downlink ratio interval .

According to the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the calculating unit is further configured to calculate an uplink-downlink ratio of all slot ratios of the current system;

The determining module further includes: an obtaining unit and a generating unit;

The obtaining unit is configured to obtain at least nine uplink and downlink ratio intervals according to the uplink and downlink ratios of all the slot ratios;

The determining unit is further configured to determine at least 9 candidate ratios according to the at least 9 uplink and downlink ratio intervals; each candidate ratio includes at least one slot ratio;

The generating unit is configured to generate the candidate ratio table according to the at least nine candidate ratios.

In a seventh aspect, an embodiment of the present invention provides a controller, including:

a determining module, configured to determine, according to a load of the first cell and a preset load threshold, whether the load of the first cell is exceeded;

a determining module, configured to determine, according to uplink and downlink information of the first cell and uplink and downlink information of the second cell, a first candidate ratio of the first cell, and if the load of the first cell is not exceeded Determining, according to the first candidate ratio and the second candidate ratio, the optimal slot ratio of the first cell according to the first candidate ratio and the second candidate ratio An optimal time slot ratio of the second cell, where the second cell includes any neighboring cell of the first cell; the first candidate ratio includes at least one time slot ratio, the first The second candidate ratio includes at least one time slot ratio;

And a sending module, configured to send the optimal time slot ratio of the first cell to the first base station, and send the optimal time slot ratio of the second cell to the second base station.

According to a seventh aspect, in a first possible implementation manner of the seventh aspect, the controller, Also includes:

a receiving module, configured to receive, according to the load of the first cell and the preset load threshold, whether the load of the first cell exceeds a limit, and receive the first And receiving uplink and downlink information of the second cell sent by the second base station;

The determining module is further configured to determine a load of the first cell according to uplink and downlink information of the first cell, and determine a load of the second cell according to uplink and downlink information of the second cell.

According to the seventh aspect, or the first possible implementation manner of the seventh aspect, in a second possible implementation manner, the determining module includes:

a first determining unit, configured to determine an optimal time slot ratio corresponding to the two-two combination according to a preset minimum number of cross-subframes of the at least two candidate ratios; wherein the at least two The candidate ratio includes: the first candidate ratio and the second candidate ratio;

The first determining unit is further configured to determine an optimal slot ratio of the first cell according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, and The optimal time slot ratio of the second cell is described.

According to a second possible implementation manner of the seventh aspect, in a third possible implementation manner, the determining module further includes:

a first acquiring unit, configured to obtain at least nine uplink and downlink ratio intervals according to the uplink and downlink ratios of all the time slot ratios;

The first determining unit is further configured to determine at least 9 candidate ratios according to the at least 9 uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio;

The first obtaining unit is further configured to obtain, according to a preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratio combinations have; wherein the ratio subframe table The number of intersecting subframes including different time slot ratios.

According to a third possible implementation manner of the seventh aspect, in a fourth possible implementation manner, the first determining unit is further configured to: in the first acquiring unit, according to the preset ratio subframe a table, before obtaining the minimum number of cross-subframes of the at least 9 candidate ratios, combining all the time slots according to a combination of two and two, respectively, determining crossovers of different time slot ratios Number of frames;

According to any one of the fourth aspect to the seventh possible implementation manner of the seventh aspect, in a fifth possible implementation manner, the sending module is further configured to: use an optimal time of the first cell The slot ratio is sent to the first base station in a unicast manner, and the optimal slot ratio of the second cell is sent to the second base station in a unicast manner.

According to any one of the fifth aspect to the fifth possible implementation manner of the seventh aspect, in a sixth possible implementation manner, the determining module is further configured to: if the load of the first cell is exceeded Determining, according to the uplink and downlink information of the first cell, an optimal time slot ratio of the first cell; the optimal time slot ratio of the second cell is an optimal time slot ratio of the first cell ;

The sending module is further configured to send the optimal time slot ratio of the first cell to the first base station and the second base station by using a broadcast manner.

According to any one of the seventh aspect to the seventh possible implementation manner of the seventh aspect, in a seventh possible implementation manner, the determining module includes:

a determining unit, configured to determine whether the load of the first cell is the largest by comparing a load of the first cell with a load of the second cell;

a second determining unit, configured to determine a total cell load according to a load of the first cell and a load of the second cell, if a load of the first cell is the largest;

a second acquiring unit, configured to obtain a ratio of a load of the first cell to a load of the total cell;

The determining unit is further configured to determine, according to a ratio of a load of the first cell to a load of the total cell, and a size of the load threshold;

The second determining unit is further configured to determine that the load of the first cell exceeds a limit if a ratio of a load of the first cell to the total cell load is greater than the load threshold.

In an eighth aspect, an embodiment of the present invention provides a base station, including:

a sending module, configured to send uplink and downlink information of the first cell to the controller;

According to the eighth aspect, in a first possible implementation manner of the eighth aspect, if the load of the first cell is not exceeded, the optimal ratio of the first cell is the controller according to the The uplink and downlink information of a cell and the uplink and downlink information of the second cell respectively determine a first candidate ratio and a second candidate ratio, and adopt a cross subframe according to the first candidate ratio and the second candidate ratio Minimum principle, the determined time slot ratio;

According to the eighth aspect, or the first possible implementation manner of the eighth aspect, in a second possible implementation manner, the receiving module is further configured to receive the first sent by the controller by using a unicast manner. The optimal time slot ratio of the cell.

According to the eighth aspect, or the second possible implementation manner of the eighth aspect, in a third possible implementation manner, the load of the first cell is exceeded, and the first cell is optimal. The time slot ratio is a time slot ratio determined by the controller according to the uplink and downlink information of the first cell.

According to a third possible implementation manner of the eighth aspect, in a fourth possible implementation manner, the receiving module is further configured to receive, by the controller, the first cell that is sent by using a broadcast manner Optimal time slot ratio.

The time slot ratio adaptive method, the controller, and the base station in the embodiment of the present invention, by using the controller, according to the first candidate ratio of the first cell and the second candidate ratio of the second cell, using a minimum cross subframe In principle, determining the optimal slot ratio of the first cell may reduce the “cross-slot interference” of the first cell and the neighboring cell, thereby better ensuring the throughput of the first cell and improving the overall system. performance.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

1 is a schematic diagram of a network for transmitting uplink and downlink information by using the prior art;

2 is a flowchart of a slot ratio adaptation method according to Embodiment 1 of the present invention;

3 is a flowchart of a slot ratio adaptation method according to Embodiment 2 of the present invention;

4 is a flowchart of a slot ratio adaptation method according to Embodiment 3 of the present invention;

FIG. 5 is a flowchart of a time slot ratio adaptation method according to Embodiment 4 of the present invention; FIG.

6 is a flowchart of a slot ratio adaptation method according to Embodiment 5 of the present invention;

FIG. 7 is a flowchart of a slot ratio adaptation method according to Embodiment 6 of the present invention; FIG.

FIG. 8 is a flowchart of another time slot ratio adaptation method according to Embodiment 6 of the present invention; FIG.

9 is a flowchart of a slot ratio adaptation method according to Embodiment 7 of the present invention;

10 is a flowchart of a time slot ratio adaptation method according to Embodiment 8 of the present invention;

11 is a flowchart of a slot ratio adaptation method according to Embodiment 9 of the present invention;

FIG. 12 is a schematic structural diagram of a controller according to Embodiment 10 of the present invention;

FIG. 13 is a schematic structural diagram of a base station according to Embodiment 11 of the present invention;

14 is a schematic structural diagram of a controller according to Embodiment 12 of the present invention;

FIG. 15 is a schematic structural diagram of a base station according to Embodiment 13 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

FIG. 2 is a flowchart of a time slot ratio adaptation method according to Embodiment 1 of the present invention. The method is performed by a controller, which is typically implemented in hardware and/or software, integrated in a cell base station or a superior node device of the cell base station. The cell may be any cell within a preset geographical area. The method of this embodiment includes the following steps:

Step 201: The controller receives a first candidate ratio sent by the first base station, and receives a second candidate ratio sent by the second base station.

The first candidate ratio includes at least one slot ratio determined by the first base station according to uplink and downlink information of the first cell. The second candidate ratio includes: at least one slot ratio determined by the second base station according to uplink and downlink information of the second cell; the second cell includes any neighboring cell of the first cell.

Specifically, the uplink and downlink information of the first cell may represent a service requirement of the first cell. The uplink and downlink information of the first cell may include, for example, the amount of data corresponding to the uplink and downlink information transmitted by the first base station and the UE in the first cell, such as the downlink traffic. The time slot ratio included in the first candidate ratio is the first cell transmission uplink information determined by the first base station, and the time slot allocation of the downlink information. Correspondingly, the uplink and downlink information of the second cell may indicate a service requirement of the second cell. The uplink and downlink information of the second cell may include, for example, the amount of data corresponding to the uplink and downlink information transmitted by the second base station and the UE in the second cell, such as the downlink traffic. The time slot ratio of the second candidate ratio is the second cell transmission uplink information determined by the second base station, and the time slot allocation of the downlink information.

In the TD-LTE system, the radio frame length is 10 ms, which consists of two half frames of length 5 ms. Each field consists of 5 subframes of length 1 ms, of which there are 4 normal subframes and 1 special subframe. A radio frame can also be understood as 10 subframes of length 1 ms. Since each subframe has a certain length of time, in this embodiment, the slot ratio of the first candidate ratio includes the number of subframes for transmitting uplink information and downlink information determined by the first base station. distribution.

The first base station determines the slot ratio according to the uplink and downlink information of the first cell, and may calculate the ratio of the downlink information to the uplink information according to the uplink and downlink information of the first cell, and perform matching with all time slots of the current communication system. For comparison, the at least one time slot ratio close to the ratio of the downlink information of the first cell and the uplink information is used as the candidate ratio of the first cell, that is, the first candidate ratio.

Table 1

It is assumed that there are 7 different time slot ratios in the current communication system, and the slot ratios are numbered from 0 to 6, respectively. Table 1 is a table showing the correspondence between the slot ratio and the uplink and downlink subframes according to the first embodiment of the present invention.

As shown in Table 1, D is a downlink subframe, U is an uplink subframe, and S is a special subframe. In this embodiment, the special subframe can be considered as a downlink subframe. Therefore, according to the table 1, the uplink and downlink time slot ratios corresponding to the respective ratio numbers can be obtained. In this embodiment, the uplink and downlink time slot ratio may also be represented by a ratio of the number of uplink and downlink subframes. Table 2 is a correspondence table of uplink and downlink ratios corresponding to different time slot ratios shown in the first embodiment.

配比编号Matching number	#0#0	#1#1	#2#2	#3#3	#4#4	#5#5	#6#6
配比编号Matching number	#0#0	#1#1	#2#2	#3#3	#4#4	#5#5	#6#6	上下行比值Up-down ratio	4:64:6	6:46:4	8:28:2	7:37:3	8:28:2	9:19:1	5:55:5

Table 2

In this embodiment, the uplink-downlink ratio is used as an example of the ratio of the number of downlink subframes to the number of uplink subframes. According to the above Table 1, the number of downlink subframes is 4 for the slot ratio with the matching number 0, including 2 special subframes, and the number of uplink subframes is 6. Therefore, the number of downlink subframes and uplink subframes The ratio of the number of frames is 4:6. For the ratio of the slots of the remaining numbers, the corresponding number of uplink and downlink subframes may be obtained according to a similar method, and details are not described herein again.

If the uplink information of the first cell is 5500 and the downlink information of the first cell is 4500, the ratio of the downlink information of the first cell to the uplink information is 4.5/5.5. Therefore, according to the ratio of 4.5/5.5, compare with all time slot ratios of the current communication system, calculate the difference respectively, and perform the ratio of each time slot according to the priority of the absolute value of the difference from small to large. Sort. The difference is the smallest, indicating that the ratio is closest to the time slot and the highest priority. The time slot ratio is #0, #6, #1, #3, #2, #4, #5 in order of priority from high to low. The first base station may determine the #0 and #6, two time slot ratios as the first candidate ratio.

It should be noted that, here, only the first base station determines two slot ratios for the first cell as an example. The first base station can also determine more than two time slot ratios as the The first candidate ratio.

In the embodiment, the ratio of the following information to the uplink information is used as an example of the uplink-downlink ratio. However, the uplink-downlink ratio may also be obtained according to the ratio of the uplink information to the downlink information. If the uplink-downlink ratio is determined as the ratio of the uplink information to the downlink information, the corresponding uplink-downlink ratio corresponding to each slot ratio is the ratio of the number of uplink subframes to the number of downlink subframes. If the ratio of the uplink and downlink ratios of the time slot ratio is the ratio of the number of uplink subframes to the number of downlink subframes, the ratio of the uplink information to the downlink information may be the absolute value of the difference between the slots and the time slot. The priority is chosen.

Step 202: The controller determines, according to the first candidate ratio and the second candidate ratio, the optimal slot ratio of the first cell and the optimal time of the second cell by using a minimum principle of a cross-subframe. Gap ratio.

In this embodiment, the controller may determine the optimal slot ratio of the first cell and the optimal slot ratio of the second cell by using at least the following two manners.

In a first possible implementation, the controller may compare the time slot ratios in the first candidate ratio with the time slots in the second candidate ratio to perform a pairwise comparison to determine corresponding The number of sub-frames is crossed, and the ratio of the time slots with the smallest number of cross-subframes in each of the second candidate ratios is determined as the optimal time slot ratio of the first cell. The controller determines the optimal slot ratio of the first cell and determines the optimal slot ratio of the second cell. The controller may determine the slot ratio in the second candidate ratio corresponding to the optimal slot ratio of the first cell as the optimal slot ratio of the second cell. If the location of the uplink subframe in the slot ratio of the first candidate ratio matches the location of the downlink subframe in the slot matching of the second candidate ratio, the slot of the first candidate ratio may be determined. The ratio has a cross-subframe with the slot ratio of the second candidate ratio.

In a first possible implementation manner, the controller may obtain the first optimal time slot ratio by querying a preset ratio mapping table according to the first candidate ratio and the second candidate ratio. The second candidate ratio corresponds to an optimal slot ratio, where the optimal slot ratio of the first cell and the optimal slot ratio of the second cell are included. The ratio mapping table can be based on different candidates The number of matching minimum sub-frames is determined. The different candidate ratios include at least the first candidate ratio and the second candidate ratio.

Step 203: The controller sends the optimal time slot ratio of the first cell to the first base station, and sends the optimal time slot ratio of the second cell to the second base station.

It should be noted that, in the foregoing step 201, the controller may receive the first candidate ratio that is sent by the first base station by using a wired or wireless manner. If the controller receives the first candidate ratio that is sent by the first base station by using a wired manner, the controller receives the network interface corresponding to the first base station; if the controller receives the first base station, sends the wireless data by using the first base station. The first candidate ratio is received by the controller through a wireless air interface corresponding to the first base station. The controller also receives the second candidate ratio sent by the second base station by using a similar receiving manner.

In this embodiment, the controller determines the optimal time slot of the first cell by using a minimum principle of the cross-subframe according to the first candidate ratio of the first cell and the second candidate ratio of the second cell. Compared with the optimal slot ratio of the second cell and the optimal slot ratio of the second cell, the "cross-slot interference" of the first cell and the neighboring cell can be reduced, thereby better guaranteeing the cell Throughput, improving the overall performance of the system.

Embodiment 2

The embodiment of the invention further provides a time slot ratio adaptation method. FIG. 3 is a flowchart of a slot ratio adaptation method according to Embodiment 2 of the present invention. As shown in FIG. 3, the solution is based on the foregoing solution, where the controller determines, according to the first candidate ratio and the second candidate ratio, the cross-subframe minimum principle to determine the first cell. The optimal time slot ratio and the optimal time slot ratio of the second cell specifically include:

Step 301: The controller determines, according to a preset minimum number of cross-subframes of the at least two candidate ratios, the optimal time slot ratio corresponding to the two-two combination; wherein the at least two candidate matches The ratio includes: the first candidate ratio and the second candidate ratio.

The at least two candidate ratios may include a slot ratio in a current system corresponding to different uplink and downlink ratio intervals, or a corresponding slot ratio obtained according to a flexible subframe technique. In this embodiment, Obtaining the time slot ratio according to the flexible subframe technology, the special subframe can be used as a bridge to convert the uplink subframe in the original slot ratio into a downlink subframe, or convert the downlink subframe into an uplink subframe. Time slot ratio. It should be noted that, whether it is the slot ratio in the current system or the slot ratio obtained according to the flexible subframe technology, the uplink-downlink ratio of the slot ratios included in each candidate ratio is in the same uplink-downlink ratio interval. . That is to say, the uplink and downlink ratios of the slot ratios in each candidate ratio are relatively close, and can be applied to the same or similar services.

Step 302: The controller generates a matching mapping table according to an optimal time slot ratio corresponding to the two-two combination.

Step 303: The controller determines, according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and an optimal slot of the second cell. Matching.

And the at least two candidate ratios include the first candidate ratio and the second candidate ratio, and the ratio mapping table includes at least the optimal slot corresponding to the first candidate ratio and the second candidate ratio. Matching. Therefore, the controller can obtain an optimal time slot ratio of the first cell according to the ratio mapping table.

Further, in step 301 in the foregoing solution, the controller determines, according to the preset minimum number of cross-subframes of the at least two candidate ratios, the optimal time slot ratio corresponding to the two-two combination. The method also includes:

Step 3011: The controller calculates an uplink-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios.

All time slot ratios of the current system may include, for example, time slot ratios of #0 to #6 shown in Table 1 above, and may also include other time slot ratios. If the time slot ratio of the current system is 7, the uplink-downlink ratio of all the time slot ratios may be obtained by obtaining 9 uplink and downlink ratio intervals; if the current system time slot ratio is greater than 7, then according to the all The uplink-downlink ratio of the time slot ratio may be obtained by obtaining more than 9 kinds of uplink and downlink ratio intervals.

The controller calculates the uplink-to-downlink ratio of all the slot ratios of the current system, and obtains the number of downlink subframes in the slot ratio, divided by the number of uplink subframes in the slot ratio.

For example, if the time slot ratio of the current system is 7, the uplink/downlink ratio of all the time slot ratios may be, for example, the foregoing Table 2. According to the above Table 2, the uplink-downlink ratio of all time slot ratios may be 4:6, 6:4, 8:2, 7:3, 8 according to the sequence of the slot ratio. 2, 9:1, 5:5. The ratio of the uplink to the downlink of all time slot ratios may be 4:6, 5:5, 6:4, 7:3, 8:2, 8:2, 9:1 in descending order of the ratio.

According to the uplink-downlink ratio of all time slot ratios, the ratio interval (0, 2/3), (2/3, 1], (1, 3/2), (3/2, 7/3) can be obtained. (7/3,4],(7/3,4],(4,9],(4,9],(9,+∞). It should be noted that the up-down ratio of different time slot ratios The same may be the same. According to the uplink-downlink ratio of all the slot ratios, the obtained uplink-downlink ratio interval includes the same ratio interval.

Step 3012: The controller determines, according to the at least nine uplink and downlink ratio intervals, at least nine candidate ratios, where each candidate ratio includes at least one slot ratio.

The current system has a slot ratio of 7, and the controller determines the at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals, for example, as shown in Table 3 below. Table 3 is a correspondence table between the uplink-downlink ratio interval and the candidate ratio provided by the second embodiment of the present invention.

table 3

Step 3013: The controller obtains, according to a preset ratio subframe table, a minimum number of cross subframes of the at least nine candidate ratio combinations, where the ratio subframe table includes different slot ratios. The number of crossed sub-frames.

Since each candidate ratio includes at least one time slot ratio. The controller sequentially queries the slot ratio of each candidate ratio in the at least 9 candidate ratios according to a preset ratio subframe table, and crosses the slots of any other candidate ratio. The number of frames is determined, and the slot ratio of each candidate ratio is determined, and the minimum number of cross subframes matched with each slot of the other candidate ratio is obtained, thereby obtaining the at least 9 candidate ratios The minimum number of intersecting sub-frames.

Since different time slot ratios and the same time slot ratio may have the same number of cross-subframes, the slot ratio of each candidate ratio is minimized with each of the other candidate ratios. The number of cross-subframes may have many different combinations. That is to say, according to the minimum number of cross-subframes that the at least 9 candidate ratios have, the determined optimal slot ratio of the two-two combinations may be a set of optimal time slot ratios. It is also possible to match multiple sets of optimal time slots, wherein each set of optimal time slot ratios includes 2 time slot ratios. Table 4 is a ratio mapping table provided by Embodiment 2 of the present invention.

Table 4

For example, if the first candidate ratio includes two time slot ratios of #0, #6, the second candidate ratio includes two time slot ratios of #3, #2, according to the first time slot. Ratio, the second time slot ratio, and the ratio mapping table obtain the time slot ratio corresponding to the optimal slot ratio of the first cell to #6, corresponding to the optimal time slot of the second cell. The ratio is the time slot ratio corresponding to #3.

If the first candidate ratio includes #6, #1 two time slot ratios, the second candidate ratio includes #3, #2 two time slot ratios, according to the first time slot ratio, the first The second slot ratio and the ratio mapping table can obtain the slot ratio corresponding to the optimal slot ratio of the first cell to be #6, and correspondingly, the optimal slot ratio of the second cell is #3 corresponds to the slot ratio. The optimal slot ratio of the first cell may also be the slot ratio of #1, and correspondingly, the optimal slot ratio of the second cell is the slot of #2. Matching.

On the basis of the above solution, further, in step 3013, the controller obtains the minimum number of cross subframes that the at least nine candidate ratios have in combination according to a preset ratio subframe table, the method Also includes:

The controller determines the number of intersecting subframes in different time slot ratios according to the combination of all time slots according to the combination of two pairs;

Specifically, determining the number of cross-subframes that the different slot ratios have, actually determining whether one slot ratio is matched with other slots, and the same position, that is, the position corresponding to the same subframe number, is the subframe allocation Differently, the number of positions with different subframe allocations is the number of intersecting subframes. That is to say, if the #4 subframe of one slot ratio is an uplink subframe and the #4 subframe of another slot ratio is a downlink subframe, the subframe is a cross subframe.

table 5

For example, the time slot ratio may be, for example, the time slot ratio shown in Table 1 above. #0's slot ratio, there are 2 cross-subframes in the slot ratio of #1; slot ratio of #0 is matched with slot of #2 There are 4 cross subframes than there are. Similarly, the number of cross-subframes of two different combinations of different subframes is obtained, as described in Table 5. Table 5 is a ratio subframe table according to Embodiment 2 of the present invention.

Based on the solution of the foregoing embodiment, preferably, the controller may be any cell base station in the current network.

If the controller is another base station other than the first base station in the current network, correspondingly, in step 201, the controller receives the first candidate ratio sent by the first base station, including:

The controller receives the first candidate ratio sent by the first base station through the X2 interface.

Optionally, the controller may also be a superior network node of any cell base station in the current network.

Correspondingly, in step 201, the controller receives the first candidate ratio sent by the first base station, including:

The controller receives the first candidate ratio sent by the first base station through the S1 interface.

In this embodiment, on the basis of the foregoing solution, multiple preferred implementations are provided to reduce the “cross-slot interference” of the first cell and the neighboring cell, so as to better ensure the throughput of the first cell. Amount that improves the overall performance of the system.

Embodiment 3

This embodiment also provides a time slot ratio adaptation method. FIG. 4 is a flowchart of a time slot ratio adaptation method according to Embodiment 3 of the present invention. This embodiment is performed by the first base station. As shown in FIG. 4, the method specifically includes:

Step 401: The first base station determines, according to uplink and downlink information of the first cell, a first candidate ratio; the first candidate ratio includes at least one slot ratio.

Step 402: The first base station sends the first candidate ratio to the controller, so that the controller determines the first cell by using a cross-subframe minimum principle according to the first candidate ratio and the second candidate ratio. Optimal time slot ratio.

The second candidate ratio includes at least one slot ratio determined by the second base station according to uplink and downlink information of the second cell; the second cell includes any neighboring cell of the first cell.

Step 403: The first base station receives an optimal time slot ratio of the first cell sent by the controller.

The solution of the embodiment is the same as the foregoing embodiment, and the beneficial effects of the solution executed by the first base station are similar to those of the foregoing embodiment, and are not described herein again. .

Embodiment 4

This embodiment also provides a time slot ratio adaptation method. FIG. 5 is a flowchart of a slot ratio adaptation method according to Embodiment 4 of the present invention. On the basis of the foregoing solution, the first base station determines the first candidate ratio according to the uplink and downlink information of the first cell, which includes:

Step 501: The first base station calculates an uplink-downlink ratio of the first cell according to the uplink and downlink information of the first cell.

Step 502: The first base station determines the first candidate ratio according to the uplink-downlink ratio of the first cell and a preset candidate ratio table. The candidate ratio table includes: a candidate ratio corresponding to the uplink-downlink ratio interval.

Specifically, the uplink-downlink ratio of the first cell may be a ratio of downlink information to uplink information, or may be a ratio of uplink information to downlink information. If the uplink-downlink ratio of the first cell is the ratio of the downlink information to the uplink information, the uplink-downlink ratio interval in the candidate ratio may be a ratio of the ratio of the number of downlink subframes to the number of uplink subframes. Determining, by the first base station, the first candidate ratio according to the uplink-downlink ratio of the first cell and the candidate ratio table, for example, determining, by using an uplink-downlink ratio of the first cell, a corresponding uplink and downlink in the candidate ratio table. The ratio interval is then determined by the candidate ratio corresponding to the up-down ratio range.

Further, in the foregoing step 502, the first base station determines the first candidate ratio according to the uplink and downlink ratio of the first cell and the preset candidate ratio table, and specifically includes:

The first base station calculates an uplink-to-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios;

Specifically, the process in which the first base station obtains the at least nine uplink and downlink ratio intervals may be similar. In the foregoing embodiment, the process of obtaining the at least nine uplink and downlink ratio intervals is similar. The difference is that the first base station generates the candidate ratio table according to the at least nine uplink and downlink ratio intervals. In the above embodiment, the controller generates a ratio mapping table according to the at least nine uplink and downlink ratio intervals.

In this embodiment, on the basis of the foregoing solution, the first base station obtains the first candidate ratio by using a plurality of specific preferred schemes to further describe the correspondence between the first candidate ratio and the uplink and downlink information. , thereby improving cell throughput.

Embodiment 5

This embodiment also provides a time slot ratio adaptation method. This embodiment aspect can be performed by a controller. FIG. 6 is a flowchart of a slot ratio adaptation method according to Embodiment 5 of the present invention. As shown in FIG. 6, the method specifically includes the following:

Step 601: The controller determines, according to the load of the first cell and the preset load threshold, whether the load of the first cell is exceeded.

Specifically, the load threshold may be a threshold of a load size or a load ratio threshold. If the load threshold is a threshold of the load size, the controller may determine whether the load of the first cell exceeds the limit by determining the load of the first cell and the size of the load threshold. If the load of the first cell is greater than the load threshold, the controller may determine that the load of the first cell is exceeded; correspondingly, if the load of the first cell is less than or equal to the load threshold, the controller may determine The load of the first cell is not exceeded.

If the load threshold is a load ratio threshold, the controller may determine whether the load of the first cell exceeds the limit by determining the load of the first cell, the proportion of the total cell load, and the size of the load threshold. If the load of the first cell accounts for the total cell load ratio, which is greater than the load threshold, The controller may determine that the load of the first cell is exceeded. Correspondingly, if the ratio of the load of the first cell to the total cell load is less than or equal to the load threshold, the controller may determine the load of the first cell. Not overrun.

Step 602: If the load of the first cell is not exceeded, the controller determines, according to the uplink and downlink information of the first cell and the uplink and downlink information of the second cell, a first candidate ratio of the first cell, and the first The second candidate ratio of the two cells.

The second candidate cell includes any neighboring cell of the first cell; the first candidate ratio includes at least one time slot ratio; and the second candidate ratio includes at least one time slot ratio.

Step 603: The controller determines, according to the first candidate ratio and the second candidate ratio, the optimal slot ratio of the first cell and the optimal slot of the second cell by using a cross-subframe minimum principle. Matching.

Specifically, if the load of the first cell is not exceeded, the controller determines an optimal slot ratio of the first cell and an implementation scheme of an optimal slot ratio of the second cell, and the foregoing implementation Similar in the example, and will not be described here.

Step 604: The controller sends the optimal time slot ratio of the first cell to the first base station, and sends the optimal time slot ratio of the second cell to the second base station.

In the solution of the embodiment, the controller determines whether the load of the first cell is over-limit, and if not, if the first candidate ratio and the second candidate ratio are not exceeded, the cross-subframe minimum principle is used to determine the The optimal slot ratio of the first cell and the optimal slot ratio of the second cell can reduce the "cross-slot interference" of the neighboring cell, ensure the throughput of the cell, and avoid the high-load cell. The increase in throughput creates constraints that better ensure overall system performance.

Embodiment 6

This embodiment also provides a time slot ratio adaptation method. FIG. 7 is a flowchart of a time slot ratio adaptation method according to Embodiment 6 of the present invention.

On the basis of the foregoing solution, further, in the foregoing step 601, the controller determines, according to the load of the first cell and the preset load threshold, whether the load of the first cell exceeds the limit, and further include:

Step 701: The controller receives uplink and downlink information of the first cell sent by the first base station, and receives uplink and downlink information of the second cell sent by the second base station.

Step 702: The controller determines the load of the first cell according to the uplink and downlink information of the first cell, and determines the load of the second cell according to the uplink and downlink information of the second cell.

The uplink and downlink information of the first cell and the second cell may be represented by uplink and downlink traffic. For example, the downlink traffic of the first cell is 4500 and the uplink traffic is 5500. The load of the first cell may be the sum of uplink and downlink traffic of the first cell, that is, 10000. The downlink traffic of the second cell is 5000, and the uplink traffic is 3000. The load of the second cell may be the sum of uplink and downlink traffic of the second cell, that is, 8000.

Preferably, in the foregoing step 603, the controller determines, according to the first candidate ratio and the second candidate ratio, a cross-subframe minimum principle, determining an optimal slot ratio of the first cell, and the second The optimal time slot ratio of the cell includes:

Step 703: The controller determines an optimal time slot ratio corresponding to the two-two combination according to the preset minimum number of cross-subframes of the at least two candidate ratios.

The at least two candidate ratios include: the first candidate ratio and the second candidate ratio.

Step 704: The controller generates a matching mapping table according to the optimal time slot ratio corresponding to the two-two combination.

Step 705: The controller determines, according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and an optimal time of the second cell. Gap ratio.

Further, in step 703, the controller determines, according to the preset minimum number of cross subframes of the at least two candidate ratios, the optimal time slot ratio corresponding to the pairwise combination, and include:

Step 7031: The controller calculates an uplink-downlink ratio of all time slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios.

Step 7032: The controller determines at least nine types according to the at least nine uplink and downlink ratio intervals. Candidate ratio; wherein each candidate ratio includes at least one slot ratio.

Step 7033: The controller obtains, according to a preset ratio subframe table, a minimum number of cross subframes of the at least nine candidate ratio combinations, where the ratio subframe table includes different slot ratios. The number of crossed sub-frames.

Preferably, in step 7033, the controller obtains, according to the preset ratio subframe table, the minimum number of cross subframes that the at least nine candidate ratio combinations have, and further includes:

Specifically, if the load of the first cell is not exceeded, the controller determines an optimal slot ratio scheme of the first cell, and the specific implementation process and the beneficial effect thereof are determined by the controller in the foregoing embodiment. The scheme of the optimal slot ratio of the first cell is similar, and details are not described herein again.

This embodiment also provides a slot ratio adaptation scheme. Optionally, based on the solution of the foregoing embodiment, the method further includes:

If the load of the first cell is exceeded, the controller determines an optimal slot ratio of the first cell according to the uplink and downlink information of the first cell.

Specifically, the controller determines an optimal slot ratio of the first cell according to the uplink and downlink information of the first cell, and may obtain an uplink-downlink ratio of the first cell according to the uplink and downlink information, and calculate the current system. All time slots are matched by the uplink to downlink ratio. The controller compares the uplink-downlink ratio of the first cell with the uplink-downlink ratio of all the slot ratios, and selects a slot ratio closest to the uplink-downlink ratio of the first cell as the first cell. Optimal time slot ratio.

If the uplink and downlink information of the first cell is indicated by uplink and downlink traffic. The downlink traffic of the first cell is 4500, and the uplink traffic is 5500. The load of the first cell may be the sum of uplink and downlink traffic of the first cell, that is, 10000. Assuming that the load of the first cell is 10000, it has exceeded the limit. According to The uplink and downlink information of the first cell determines that the uplink and downlink ratio of the first cell is 4500/5500. The uplink-downlink ratio of all the slot ratios in the current system may be compared with the uplink-downlink ratio of all the slot ratios by comparing the uplink-downlink ratio of the first cell to the uplink and downlink ratio of the first slot, and selecting the first cell. The time slot ratio of the closest uplink-downlink ratio, that is, the time slot ratio corresponding to #0 is used as the optimal time slot ratio of the first cell.

On the basis of the foregoing solution, if the load of the first cell is not exceeded, the controller sends the optimal time slot ratio of the first cell to the first base station, and the candidate of the second cell is used in the foregoing step 604. The ratio sent to the second base station includes:

The controller sends the optimal slot ratio of the first cell to the first base station in a unicast manner, and sends the optimal slot ratio of the second cell to the second base station in a unicast manner.

Based on the above solution, the method further includes:

The optimal time slot ratio of the second cell is the optimal time slot ratio of the first cell.

Specifically, if the load of the first cell exceeds the limit, the controller further sends the optimal time slot ratio of the first cell to the second cell, so that the second cell and the first cell apply the same time. The slot ratio ratio preferentially guarantees the high-load cell, that is, the throughput of the first cell, while avoiding cross-slot interference between cells.

That is, if the controller determines, according to the uplink and downlink information of the first cell, that the optimal slot ratio of the first cell is the slot ratio corresponding to #0, the controller also corresponds to the time corresponding to #0. The slot ratio is sent to the second base station.

Corresponding to the above step 605, the controller sends the optimal time slot ratio of the first cell to the first base station, and the optimal time slot ratio of the second cell to the second base station includes:

The controller sends the optimal time slot ratio of the first cell to the first base station and the second base station by using a broadcast manner.

It should be noted that the controller in this embodiment may be any one of the foregoing embodiments. The controller may be any cell base station or a superior network node of the cell base station.

This embodiment also provides a time slot ratio adaptation method. The method specifically describes the controller determining whether the load of the first cell exceeds the limit. FIG. 8 is a flowchart of another time slot ratio adaptation method according to Embodiment 6 of the present invention. As shown in FIG. 8, the method is based on any of the foregoing solutions. In step 602, the controller determines, according to the load of the first cell and the preset load threshold, whether the load of the first cell exceeds the limit, including:

Step 801: The controller determines whether the load of the first cell is the largest by comparing the load of the first cell and the load of the second cell.

If the load of the first cell is 10000 and the load of the second cell is 8000, the controller compares the load of the first cell with the load of the second cell, and the load of the first cell is the largest.

Step 802: If the load of the first cell is the largest, the controller determines the total cell load according to the load of the first cell and the load of the second cell.

The total cell load may be the sum of the load of the first cell and the second cell, and may be 18000.

Step 803: The controller determines, according to the load of the first cell and the load of the second cell, a ratio of a load of the first cell to a total cell load.

If the load of the first cell is 10000, the total cell load is 18000, and if the ratio of the load of the first cell to the total cell load is represented by λ, then λ=10000/18000=55.56%.

Step 804: If the ratio of the load of the first cell to the total cell load is greater than the load threshold, the controller determines that the load of the first cell exceeds the limit.

Assume that the load λ of the first cell accounts for 55.56% of the total cell load, and if the load threshold T is 60%, the λ<T, that is, the load of the first cell is not exceeded; If the ratio of the load of a cell to the total cell load is 61%, then λ>T, that is, the load of the first cell is exceeded.

In this embodiment, the solution for determining the optimal slot ratio of the first cell for the different load conditions of the first cell, and the load determining scheme of the first cell may reduce the first cell and the phase The "cross-slot interference" of the neighboring cell ensures the throughput of the first cell, and also avoids the restriction on the throughput improvement of the high-load cell, thereby better ensuring the overall performance of the system.

Example 7

This embodiment also provides a time slot ratio adaptation method. This embodiment can be performed by the first base station. FIG. 9 is a flowchart of a slot ratio adaptation method according to Embodiment 7 of the present invention. As shown in FIG. 9, the method includes:

Step 901: The first base station sends uplink and downlink information of the first cell to the controller.

Step 902: The first base station receives an optimal time slot ratio of the first cell sent by the controller.

Preferably, if the load of the first cell is not exceeded, the optimal ratio of the first cell is that the controller determines the first candidate according to the uplink and downlink information of the first cell and the uplink and downlink information of the second cell, respectively. The ratio and the second candidate ratio are used, and the determined slot ratio is determined according to the first candidate ratio and the second candidate ratio using a cross-subframe minimum principle.

The first candidate ratio is a candidate ratio of the first cell, and includes at least one slot ratio, where the second candidate ratio is a candidate ratio of the second cell, including at least one slot ratio; The second cell includes any neighboring cell of the first cell.

Further, in the foregoing step 902, the first base station receiving the optimal time slot ratio of the first cell sent by the controller includes:

Optionally, if the load of the first cell is exceeded, the optimal slot ratio of the first cell is a slot ratio determined by the controller according to the uplink and downlink information of the first cell.

Further, in the foregoing step 902, the first base station receives the first small sent by the controller. The optimal time slot ratio of the zone includes:

The first base station receives the optimal time slot ratio of the first cell that is sent by the controller in a broadcast manner.

This embodiment is a scheme performed by the first base station corresponding to the foregoing solution in the fifth to seventh embodiments, and the beneficial effects are similar to those in the foregoing embodiment, and details are not described herein again.

Example eight

This embodiment also provides a time slot ratio adaptation method. This embodiment explains the above-described first embodiment to fourth embodiment by way of specific examples. FIG. 10 is a flowchart of a time slot ratio adaptation method according to Embodiment 8 of the present invention. As shown in FIG. 10, the method specifically includes:

Step 1001: The first base station determines, according to the uplink and downlink information of the first cell, at least one slot ratio, as the first candidate ratio, and sends the first candidate ratio to the controller.

Assume that the downlink traffic of the first cell is 4500 and the uplink traffic is 5500. Then the uplink and downlink ratio of the first cell is 4.5/5.5. The uplink-downlink ratio of all the slot ratios in the current system may be compared with the uplink-downlink ratio of all the slot ratios by comparing the uplink-downlink ratio of the first cell to the uplink and downlink ratio of the first slot, and selecting the first cell. The ratio of the two slots that are closest to the uplink and downlink ratios, that is, the slot ratios corresponding to #0 and #6, is used as the candidate ratio of the first cell. That is to say, the first candidate ratio includes the slot ratios corresponding to #0 and #6.

Step 1002: The second base station determines, according to the uplink and downlink information of the second cell, at least one slot ratio, as the second candidate ratio, and sends the second candidate ratio to the controller.

Assume that the downlink traffic of the second cell is 9500 and the uplink traffic is 1000, and the uplink and downlink ratio of the second cell is 9.5/1. The uplink-downlink ratio of all the slot ratios in the current system may be compared with the uplink-downlink ratio of all the slot ratios by comparing the uplink-downlink ratio of the second cell to the uplink and downlink ratio of the second slot, and selecting the second cell. The ratio of the first slot of the uplink and downlink ratio is the closest, that is, the slot ratio corresponding to #5 is used as the candidate ratio of the second cell. That is to say, the second candidate ratio includes the slot ratio corresponding to #5.

Step 1003: The controller calculates an uplink-downlink ratio of all slot ratios of the current system, and According to the uplink-downlink ratio of all the slot ratios, at least nine uplink and downlink ratio intervals are obtained.

It should be noted that the step 1001, the step 1002, and the step 1003 do not have an absolute timing relationship. The step 1001 may be performed simultaneously with the step 1002 and the step 1003, or may be performed sequentially, and the present invention is not limited thereto.

Step 1004: The controller determines at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio.

Step 1005: The controller determines the number of intersecting subframes in the different time slot ratios according to the combination of all the time slots.

Step 1006: The controller generates the ratio subframe table according to the number of cross subframes that the different slot ratios have.

The ratio subframe table may be similar to Table 5 above.

Step 1007: The controller obtains, according to the ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratio combinations have; wherein the ratio subframe table includes crossover of different slot ratios The number of subframes.

Step 1008: The controller determines an optimal time slot ratio corresponding to the two-two combination according to the minimum number of cross-subframes that the at least nine candidate ratios have a combination of two to two combinations; wherein the at least two candidate ratios include : the first candidate ratio and the second candidate ratio.

Step 1009: The controller generates a matching mapping table according to an optimal time slot ratio corresponding to the two-two combination.

The ratio mapping table can be similar to Table 4 above.

Step 1010: The controller determines, according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell and an optimal slot allocation of the second cell. ratio.

The first candidate ratio includes the slot ratios corresponding to #0 and #6, and the second candidate ratio includes the slot ratio corresponding to #5, and the first cell is obtained according to the ratio mapping table. The slot ratio is the slot ratio corresponding to #0, and the optimal slot ratio of the second cell is the slot ratio corresponding to #5.

Step 1011: The controller sends the optimal time slot ratio of the first cell to the first base station, And transmitting the optimal time slot ratio of the second cell to the second base station.

The embodiment of the present invention is specifically described by using the specific examples in the foregoing embodiments, and the beneficial effects are similar to those in the foregoing embodiment, and are not described herein again.

Example nine

This embodiment also provides a time slot ratio adaptation method. This embodiment explains the above-described Embodiment 5 to Embodiment 7 by way of specific examples. FIG. 11 is a flowchart of a slot ratio adaptation method according to Embodiment 9 of the present invention. As shown in FIG. 11, the method specifically includes:

Step 1101: The first base station sends the uplink and downlink information of the first cell to the controller, and the second base station sends the uplink and downlink information of the second cell to the controller.

Assume that the uplink and downlink information of the first cell is 4500, and the upstream traffic is 5500. The uplink and downlink information of the second cell, where the downlink traffic is 5000 and the uplink traffic is 3000.

Step 1102: The controller determines the load of the first cell according to the uplink and downlink information of the first cell, and determines the load of the second cell according to the uplink and downlink information of the second cell.

The load of the first cell may be the sum of uplink and downlink traffic of the first cell, that is, 10000. The load of the second cell may be the sum of uplink and downlink traffic of the second cell, that is, 8000.

Step 1103: The controller compares the load of the first cell with the load of the second cell, and determines whether the load of the first cell is the largest.

The load of the first cell is 10000, and the load of the second cell is 8000. By comparison, the load of the first cell is the largest.

Step 1104: If the load of the first cell is the largest, the controller determines the total cell load according to the load of the first cell and the load of the second cell.

The load of the first cell is 10000, and the load of the second cell is 8000, and the total cell load can be determined to be 18000.

Step 1105: The controller determines, according to the load of the first cell and the load of the second cell, a ratio of a load of the first cell to a total cell load.

The load of the first cell is 10000, and the total cell load is 18000, and the first cell is The ratio of the load to the total cell load is represented by λ, which is 10000/18000 = 55.56%.

Step 1106: The controller determines, according to the ratio of the load of the first cell to the total cell load, and the preset load threshold, whether the load of the first cell is exceeded.

If yes, go to step 1107 and step 1108; if no, go to steps 1109-1116.

Assuming that the load threshold T is 60%, the load of the first cell accounts for λ<T of the total cell load, and the controller can determine that the load of the first cell is not exceeded.

Step 1107: If the load of the first cell is exceeded, the controller determines an optimal slot ratio of the first cell according to the uplink and downlink information of the first cell.

Step 1108: The controller sends the optimal slot ratio of the first cell to the first base station and the second base station by using a broadcast manner.

Step 1109: If the load of the first cell is not exceeded, the controller determines a first candidate ratio according to uplink and downlink information of the first cell, and determines a second candidate ratio according to uplink and downlink information of the second cell.

The first candidate ratio and the second candidate ratio each include at least one slot ratio.

If the uplink and downlink information of the first cell, the downlink traffic is 4500, and the uplink traffic is 5500. The uplink and downlink information of the second cell, where the downlink traffic is 5000 and the uplink traffic is 3000.

The controller determines, according to the uplink and downlink information of the first cell, that the first candidate ratio may include a slot ratio corresponding to #0 and #6. The controller may determine, according to the uplink and downlink information of the second cell, that the second candidate ratio includes slot ratios corresponding to #1 and #3.

Step 1110: The controller calculates an uplink-to-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios.

It should be noted that the step 1109 and the step 1110 do not have an absolute timing relationship. The step 1109 may be performed simultaneously with the step 1110, or may be performed sequentially, and the present invention is not limited thereto.

Step 1111: The controller determines at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio.

Step 1112: The controller obtains the at least nine candidate matches according to a preset ratio subframe table. The minimum number of intersecting sub-frames compared to the two-two combination.

The ratio subframe table includes the number of cross subframes with different slot ratios.

Step 1113: The controller determines an optimal time slot ratio corresponding to the two-two combination according to the minimum number of cross-subframes that the at least nine candidate ratio combinations have.

Step 1114: The controller generates a matching mapping table according to the optimal time slot ratio corresponding to the two-two combination.

The ratio mapping table can be similar to Table 4 above.

Step 1115: The controller determines, according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell and an optimal slot allocation of the second cell. ratio.

The first candidate ratio may include time slot ratios corresponding to #0 and #6, and the second candidate ratio includes slot ratios corresponding to #1 and #3, and the controller may according to the ratio mapping table. The slot ratio corresponding to #6 is determined as the optimal slot ratio of the first cell, and the slot ratio corresponding to #1 is determined as the optimal slot ratio of the second cell.

Step 1116: The controller sends the optimal slot ratio of the first cell to the first base station in a unicast manner, and sends the optimal slot ratio of the second cell to the second base station.

The embodiment described in the foregoing Embodiments 5 to 7 is specifically described by using a specific example, and the beneficial effects thereof are similar to the foregoing embodiments, and details are not described herein again.

Example ten

The embodiment of the invention further provides a controller. FIG. 12 is a schematic structural diagram of a controller according to Embodiment 10 of the present invention. As shown in FIG. 12, the controller 1200 includes:

The receiving module 1201 is configured to receive a first candidate ratio sent by the first base station, and receive a second candidate ratio sent by the second base station. The first candidate ratio includes at least one slot ratio determined by the first base station according to the uplink and downlink information of the first cell; the second candidate ratio includes: the second base station according to the uplink and downlink information of the second cell The determined at least one time slot ratio; the second cell includes any neighboring cell of the first cell.

The determining module 1202 is configured to determine, according to the first candidate ratio and the second candidate ratio, an optimal slot ratio of the first cell and an optimal time of the second cell by using a cross-subframe minimum principle Gap ratio.

The sending module 1203 is configured to send the optimal time slot ratio of the first cell to the first base station, and send the optimal time slot ratio of the second cell to the second base station.

Further, the determining module 1202 includes:

a determining unit, configured to determine an optimal time slot ratio corresponding to the two-two combination according to a preset minimum number of cross-subframes of the at least two candidate ratio combinations; wherein the at least two candidate ratios The first candidate ratio and the second candidate ratio are included.

And a generating unit, configured to generate a matching mapping table according to the optimal time slot ratio corresponding to the two-two combination.

The determining unit is further configured to determine, according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and an optimal time of the second cell. Gap ratio.

Optionally, the determining module 1202 further includes:

a calculating unit, configured to calculate, before the first determining unit determines the optimal time slot ratio corresponding to the two pairs according to the preset minimum number of cross subframes of the at least two candidate ratio combinations The up-down ratio of all time slot ratios of the current system.

The obtaining unit is configured to obtain at least nine uplink and downlink ratio intervals according to the uplink and downlink ratios of all the slot ratios.

The determining unit is further configured to determine at least 9 candidate ratios according to the at least 9 uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio.

The obtaining unit is further configured to obtain, according to a preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratios have a combination of two to two; wherein the ratio subframe table includes different time slots. The number of crossed sub-frames.

On the basis of the foregoing embodiment, the determining unit is further configured to: obtain, by the acquiring unit, the least matching of the nine candidate ratios according to the preset ratio subframe table. Before the number of fork frames, all the time slot ratios are combined in a two-two manner to determine the number of intersecting subframes in different time slot ratios.

The generating unit is further configured to generate the ratio subframe table according to the number of intersecting subframes that the different slot ratios have.

Optionally, in the solution described in any of the foregoing embodiments, the controller may be another base station in the current network except the first base station.

The receiving module 1201 is further configured to receive the first candidate ratio that is sent by the first base station by using an X2 interface.

Alternatively, the controller in the foregoing solution may also be a superior network node of any cell base station in the current network;

The receiving module 1201 is further configured to receive the first candidate ratio that is sent by the first cell base station by using an S1 interface.

The controller provided by the solution in this embodiment can perform the slot ratio adaptation method performed by the controller in the first embodiment and the second embodiment, and the beneficial effects are similar to those in the foregoing embodiment, and details are not described herein again.

Embodiment 11

The embodiment of the invention further provides a base station. FIG. 13 is a schematic structural diagram of a base station according to Embodiment 11 of the present invention.

As shown in FIG. 13, the base station 1300 includes:

The determining module 1301 is configured to determine, according to uplink and downlink information of the first cell, a first candidate ratio; the first candidate ratio includes at least one slot ratio.

The sending module 1302 is configured to send the first candidate ratio to the controller, so that the controller determines the first cell by using a cross-subframe minimum principle according to the first candidate ratio and the second candidate ratio. An optimal time slot ratio; wherein the second candidate ratio includes at least one slot ratio determined by the second base station according to uplink and downlink information of the second cell; the second cell includes any one of the first cells Adjacent cell.

The receiving module 1303 is configured to receive an optimal time slot ratio of the first cell sent by the controller.

Further, the determining module 1301 in the foregoing solution includes:

The calculating unit is configured to calculate an uplink-downlink ratio of the first cell according to the uplink and downlink information of the first cell.

a determining unit, configured to determine the first candidate ratio according to an uplink-downlink ratio of the first cell and a preset candidate ratio table; the candidate ratio table includes: a candidate ratio corresponding to an uplink-downlink ratio interval.

Optionally, the calculating unit is further configured to calculate an uplink-downlink ratio of all slot ratios of the current system.

The determining module 1301 further includes: an obtaining unit and a generating unit.

The acquiring unit is configured to obtain at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios.

The determining unit is further configured to determine at least 9 candidate ratios according to the at least 9 uplink and downlink ratio intervals; each candidate ratio includes at least one slot ratio.

The base station provided in the embodiment of the present invention may perform the time slot matching adaptive method performed by the controller in the third embodiment and the fourth embodiment, and may also implement the eighth embodiment in cooperation with the controller provided in the foregoing tenth embodiment. The beneficial effects of the solution provided are similar to those of the above embodiment, and are not described herein again.

Example twelve

The embodiment of the invention further provides a controller. FIG. 14 is a schematic structural diagram of a controller according to Embodiment 12 of the present invention.

As shown in FIG. 14, the controller 1400 includes:

The determining module 1401 is configured to determine, according to the load of the first cell and the preset load threshold, whether the load of the first cell is exceeded.

a determining module 1402, configured to: if the load of the first cell is not exceeded, according to the first cell And determining, by the uplink and downlink information and the uplink and downlink information of the second cell, a first candidate ratio of the first cell and a second candidate ratio of the second cell, respectively, according to the first candidate ratio and the second candidate ratio The optimal slot ratio of the first cell and the optimal slot ratio of the second cell are determined by using a cross-subframe minimum principle.

The second candidate cell includes any neighboring cell of the first cell; the first candidate ratio includes at least one slot ratio, and the second candidate ratio includes at least one slot ratio.

The sending module 1403 is configured to send the optimal slot ratio of the first cell to the first base station, and send the optimal slot ratio of the second cell to the second base station.

Further, the controller 1400 further includes:

a receiving module, configured to receive, by the determining module 1401, the uplink and downlink information of the first cell sent by the first base station, before determining, according to the load of the first cell and the preset load threshold, whether the load of the first cell is exceeded. And receiving uplink and downlink information of the second cell sent by the second base station.

The determining module 1402 is further configured to determine a load of the first cell according to uplink and downlink information of the first cell, and determine a load of the second cell according to uplink and downlink information of the second cell.

Optionally, the determining module 1402 in the solution of the foregoing embodiment includes:

The first determining unit is configured to determine an optimal time slot ratio corresponding to the two-two combination according to the preset minimum number of cross-subframes of the at least two candidate ratios. The at least two candidate ratios include: the first candidate ratio and the second candidate ratio.

The first determining unit is further configured to determine, according to the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and a maximum of the second cell. Excellent time slot ratio.

Based on the embodiment described above, the determining module 1402 further includes:

a calculating unit, configured to determine, according to the preset minimum number of cross subframes that the preset at least two candidate ratios have a pair of intersecting subframes, determine an optimal slot ratio corresponding to the pairwise combination Before, calculate the uplink-downlink ratio of all time slot ratios of the current system.

The first obtaining unit is configured to obtain at least nine uplink and downlink ratio intervals according to the uplink and downlink ratios of all the slot ratios.

The first determining unit is further configured to determine at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals. Wherein each candidate ratio includes at least one time slot ratio.

The first acquiring unit is further configured to obtain, according to the preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratios have a combination of two and two. The ratio subframe table includes the number of cross subframes with different slot ratios.

In the solution of the foregoing embodiment, the first determining unit is further configured to obtain, by the first acquiring unit, the at least nine candidate ratios according to the preset ratio subframe table. Before the number of sub-frames is minimized, the ratio of all the time slots is determined according to the combination of two and two, respectively, and the number of cross-subframes in the different time slot ratios is determined.

Optionally, in the embodiment, the sending module 1403 is further configured to send the optimal slot ratio of the first cell to the first base station by using a unicast mode, and configure an optimal time slot of the second cell. Transmitted to the second base station by unicast.

Alternatively, the determining module 1402 is further configured to determine, according to the uplink and downlink information of the first cell, an optimal slot ratio of the first cell if the load of the first cell is exceeded; and the optimality of the second cell The slot ratio is the optimal slot ratio of the first cell.

The sending module 1403 is further configured to send the optimal time slot ratio of the first cell to the first base station and the second base station by using a broadcast manner.

Based on the solution described in the foregoing embodiment, further, wherein the determining module 1401 includes:

The determining unit is configured to determine whether the load of the first cell is the largest by comparing the load of the first cell with the size of the load of the second cell.

a second determining unit, configured to: if the load of the first cell is the largest, according to the negative of the first cell The load carrying the second cell determines the total cell load.

And a second acquiring unit, configured to obtain a ratio of a load of the first cell to a load of the total cell.

The determining unit is further configured to determine a ratio of a load of the first cell to a load of the total cell and a size of the load threshold.

The controller provided in the embodiment of the present invention may be implemented in any one of the fifth and sixth embodiments, and the beneficial effects thereof are similar to those in the foregoing embodiment, and details are not described herein again.

Example thirteen

The embodiment of the invention further provides a base station. FIG. 15 is a schematic structural diagram of a base station according to Embodiment 13 of the present invention.

As shown in FIG. 15, the base station 1500 includes:

The sending module 1501 is configured to send uplink and downlink information of the first cell to the controller.

The receiving module 1502 is configured to receive an optimal time slot ratio of the first cell sent by the controller.

Further, in the solution of the foregoing embodiment, if the load of the first cell is not exceeded, the optimal ratio of the first cell is that the controller is configured according to uplink and downlink information of the first cell and uplink and downlink information of the second cell. The first candidate ratio and the second candidate ratio are respectively determined, and the determined slot ratio is determined according to the first candidate ratio and the second candidate ratio according to the minimum principle of the cross subframe.

Optionally, in the foregoing solution, the receiving module 1502 is further configured to receive an optimal time slot ratio of the first cell that is sent by the controller in a unicast manner.

Alternatively, in the foregoing embodiment, if the load of the first cell is exceeded, the optimal slot ratio of the first cell is determined by the controller according to the uplink and downlink information of the first cell. Time slot ratio.

Further, the receiving module 1502 is further configured to receive an optimal time slot ratio of the first cell that is sent by the controller by using a broadcast manner.

The base station provided by the embodiment of the present invention can implement the solution described in the seventh embodiment, and can also implement the solution provided in the foregoing embodiment IX in cooperation with the controller provided in the foregoing embodiment 12. The beneficial effects are similar to the foregoing embodiment. I will not repeat them here.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A time slot matching adaptive method, comprising:

The controller receives the first candidate ratio sent by the first base station, and receives the second candidate ratio sent by the second base station, where the first candidate ratio includes the first base station determining according to the uplink and downlink information of the first cell. At least one time slot ratio; the second candidate ratio includes: at least one time slot ratio determined by the second base station according to uplink and downlink information of the second cell; the second cell includes the first Any adjacent cell of the cell;

Determining, by the first candidate ratio and the second candidate ratio, the optimal subframe ratio of the first cell, and the most Excellent time slot ratio;

The controller sends an optimal time slot ratio of the first cell to the first base station, and sends an optimal time slot ratio of the second cell to the second base station.
The method according to claim 1, wherein the controller determines the optimal time slot of the first cell by using a cross-subframe minimum principle according to the first candidate ratio and the second candidate ratio. The ratio, and the optimal slot ratio of the second cell include:

Determining, by the controller, the optimal time slot ratio corresponding to the two-two combination according to the preset minimum number of cross-subframes of the at least two candidate ratios; wherein the at least two candidate matches The ratio includes: the first candidate ratio and the second candidate ratio;

The controller generates a matching mapping table according to an optimal time slot ratio corresponding to the two pairs of combinations;

Determining, by the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and a most Excellent time slot ratio.
The method according to claim 2, wherein the controller determines an optimal time corresponding to the two-two combination according to a preset minimum number of cross-subframes of the at least two candidate ratios Before the gap ratio, it also includes:

The controller calculates an uplink-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios;

Determining, by the controller, at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio;

The controller obtains, according to a preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratios have a combination of two to two; wherein the ratio subframe table includes different slot ratios The number of crossed sub-frames.
The method according to claim 3, wherein the controller obtains the minimum number of cross-subframes of the nine candidate ratio combinations according to a preset ratio subframe table, and further includes :

The controller determines, according to the combination of two slots, the number of cross subframes that the different slot ratios have;

The controller generates the ratio subframe table according to the number of cross subframes that the different slot ratios have.
The method according to any one of claims 1-4, wherein the controller is another base station other than the first base station in the current network, and correspondingly, the controller receives the first base station to send The first candidate ratio includes:

The controller receives the first candidate ratio that is sent by the first base station through an X2 interface.
The method according to any one of claims 1-4, wherein the controller is a superior network node of any cell base station in the current network;

Correspondingly, the receiving, by the controller, the first candidate ratio sent by the first cell base station includes:

The controller receives the first candidate ratio that is sent by the first cell base station through an S1 interface.
A time slot matching adaptive method, comprising:

Determining, by the first base station, a first candidate ratio according to uplink and downlink information of the first cell; the first candidate ratio includes at least one time slot ratio;

Transmitting, by the first base station, the first candidate ratio to a controller, so that the controller determines, by using a cross-subframe minimum principle, according to the first candidate ratio and the second candidate ratio An optimal slot ratio of a cell, where the second candidate ratio includes at least one slot ratio determined by the second base station according to uplink and downlink information of the second cell; and the second cell includes the Any adjacent cell of a cell;

The first base station receives an optimal time slot ratio of the first cell sent by the controller.
The method according to claim 7, wherein the determining, by the first base station, the first candidate ratio according to the uplink and downlink information of the first cell, includes:

The first base station calculates an uplink-downlink ratio of the first cell according to the uplink and downlink information of the first cell;

Determining, by the first base station, the first candidate ratio according to an uplink-downlink ratio of the first cell and a preset candidate ratio table; the candidate ratio table includes: a candidate ratio corresponding to an uplink-downlink ratio interval .
The method according to claim 8, wherein the determining, by the first base station, the first candidate ratio according to an uplink-downlink ratio of the first cell and a preset candidate ratio table comprises:

The first base station calculates an uplink-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios;

Determining, by the first base station, at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; each candidate ratio includes at least one slot ratio;

The first base station generates the candidate ratio table according to the at least nine candidate ratios.
A time slot matching adaptive method, comprising:

The controller determines, according to the load of the first cell and the preset load threshold, whether the load of the first cell is exceeded;

If the load of the first cell is not exceeded, the controller determines the first candidate ratio and the first cell according to the uplink and downlink information of the first cell and the uplink and downlink information of the second cell, respectively. a second candidate ratio of the second cell, where the second cell includes the first cell Any of the neighboring cells; the first candidate ratio includes at least one slot ratio, and the second candidate ratio includes at least one slot ratio;

Determining, by the first candidate ratio and the second candidate ratio, the optimal slot ratio of the first cell and the optimality of the second cell according to the first candidate ratio and the second candidate ratio Time slot ratio

The controller sends the optimal time slot ratio of the first cell to the first base station, and sends the optimal time slot ratio of the second cell to the second base station.
The method according to claim 10, wherein the controller, before determining whether the load of the first cell exceeds the limit, according to the load of the first cell and the preset load threshold, further includes:

The controller receives uplink and downlink information of the first cell sent by the first base station, and receives uplink and downlink information of the second cell sent by the second base station;

The controller determines the load of the first cell according to the uplink and downlink information of the first cell, and determines the load of the second cell according to the uplink and downlink information of the second cell.
The method according to claim 10 or 11, wherein the controller determines the first cell by using a cross-subframe minimum principle according to the first candidate ratio and the second candidate ratio. The optimal slot ratio and the optimal slot ratio of the second cell include:

Determining, by the controller, the optimal time slot ratio corresponding to the two-two combination according to the preset minimum number of cross-subframes of the at least two candidate ratios; wherein the at least two candidate matches The ratio includes: the first candidate ratio and the second candidate ratio;

The controller generates a matching mapping table according to an optimal time slot ratio corresponding to the two pairs of combinations;

Determining, by the first candidate ratio, the second candidate ratio, and the ratio mapping table, an optimal slot ratio of the first cell, and a most Excellent time slot ratio.
The method according to claim 12, wherein the controller determines the two groups according to a preset minimum number of cross subframes of the at least two candidate ratio combinations Before the corresponding optimal time slot ratio, it also includes:

The controller calculates an uplink-downlink ratio of all slot ratios of the current system, and obtains at least nine uplink-downlink ratio intervals according to the uplink-downlink ratio of all the slot ratios;

Determining, by the controller, at least nine candidate ratios according to the at least nine uplink and downlink ratio intervals; wherein each candidate ratio includes at least one slot ratio;

The controller obtains, according to a preset ratio subframe table, a minimum number of cross subframes that the at least nine candidate ratios have a combination of two to two; wherein the ratio subframe table includes different slot ratios The number of crossed sub-frames.
The method according to claim 13, wherein the controller obtains the minimum number of cross-subframes of the at least nine candidate ratio pairs according to a preset ratio subframe table, and further include:

The controller determines, according to the combination of two slots, the number of cross subframes that the different slot ratios have;

The controller generates the ratio subframe table according to the number of cross subframes that the different slot ratios have.
The method according to any one of claims 10 to 14, wherein the controller sends the optimal time slot ratio of the first cell to the first base station, and the most Sending the optimal time slot ratio to the second base station includes:

The controller sends the optimal time slot ratio of the first cell to the first base station in a unicast manner, and sends the optimal time slot ratio of the second cell to the Second base station.
The method of any of claims 10-15, wherein the method further comprises:

If the load of the first cell is exceeded, the controller determines an optimal slot ratio of the first cell according to uplink and downlink information of the first cell; and an optimal slot of the second cell Ratio is the optimal time slot ratio of the first cell;

Correspondingly, the controller sends the optimal time slot ratio of the first cell to the first base station, and the optimal time slot ratio of the second cell to the second base station includes:

And the controller sends the optimal time slot ratio of the first cell to the first base station and the second base station by using a broadcast manner.
The method according to any one of claims 10 to 16, wherein the controller determines whether the load of the first cell exceeds the limit according to the load of the first cell and the preset load threshold, including:

The controller determines whether the load of the first cell is the largest by comparing the load of the first cell with the load of the second cell;

If the load of the first cell is the largest, the controller determines a total cell load according to the load of the first cell and the load of the second cell;

The controller obtains a ratio of a load of the first cell to a load of the total cell, and determines a ratio of a load of the first cell to a load of the total cell and a size of the load threshold;

If the ratio of the load of the first cell to the total cell load is greater than the load threshold, the controller determines that the load of the first cell is exceeded.