WO2014048216A1

WO2014048216A1 - Method, device and system for network load balance

Info

Publication number: WO2014048216A1
Application number: PCT/CN2013/082601
Authority: WO
Inventors: 龚大刚
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-09-28
Filing date: 2013-08-29
Publication date: 2014-04-03
Also published as: CN102883371A

Abstract

Disclosed is a method, a device and a system for network load balance, the method comprises: receiving a load information message LoadInformation sent by the network device at the access network side, the minimum value of the value range of carrier sector forward load values carried in the LoadInformation message is less than 0 db, and/or the maximum value is greater than 15.5 db; according to the carrier sector forward load values carried in the LoadInformation message, determining the service carrier sectors by means of the Network Load Balance NLB algorithm.

Description

Method, device and system for network load balancing

The present invention relates to the field of wireless communications, and in particular, to a method and system for network load balancing. Scenery technology

In the wireless communication system based on the code division multiple access 2000 lx data evolution optimization system (CDMA2000 lxEVDO, Code Division Multiple Access 2000 Evolution Data Optimized), in order to improve the system capacity, the service load can be selected for the terminal according to the principle of system network load balancing. fan.

According to the CDMA2000 lxEVDO protocol C.S0024-300-C_vl.O, a load information (Loadlnformation) message is added in the enhanced forward traffic channel media access control (MAC). The message is used to implement the control process of the network load balancing (NLB) algorithm, and the forward load value of each carrier fan measured by the access network (AN, Access Network) side can be sent to all terminals under the carrier fan through the message. .

The prior art includes two NLB algorithms, which are essentially two specific applications of the NLB algorithm, which are respectively directed to different terminals. One is for an old terminal that has not been upgraded. The old terminal cannot support the resolution of the Loadlnformation message. This NLB algorithm is also called the NLB-Legacy algorithm. The other is for the new terminal that has been upgraded. The new terminal supports Loadlnformation message parsing. This NLB algorithm is also known as the NLB-New algorithm.

For a terminal that supports a Loadlnformation message, it combines the forward load values of all the loaded fans and the forward signal strength values of the load fans measured by the terminal into a list by receiving and parsing the Loadlnformation message. As follows: Load fan fan forward load fan forward signal carrier fan forward signal strength number load (Load) intensity (SINR) and forward load difference (S_L)

1 Load_l SINR-1 S_L_l=SINR_l-LoaD_l

2 Load_2 SINR—2 S_L_2=SINR_2-LoaD_2 Table 1

According to the existing NLB-New algorithm, the carrier fan whose carrier forward signal strength value is too small is first excluded, that is, the signal to interference plus noise ratio (SINR, Singnal to Interference plus Noise Ratio) is less than -5 dB (dB). The fan record is deleted. Then calculate the S_L of each carrier fan, that is, S_L=SINR-Load, and view the S_L value of all the carriers. If the current service fan's S_L value is the largest, the current fan is still used as the service fan; if the current service is loaded If the S_L value of the fan is not the largest and the S_L of the S_L largest carrier minus the current service carrier S_L is greater than 2 dB, the carrier fan with the largest S_L is selected as the service carrier fan.

The main body of the NLB-New algorithm execution is the terminal. And according to the agreement, Load is a non-negative number, and SINR can be a negative or non-negative number, and the S_L value can also be negative or non-negative.

The NLB-Legacy algorithm mechanism is described as follows:

The NLB-Legacy algorithm is basically similar to the NLB-New algorithm, except that the algorithm execution body is on the AN side. The AN side can collect the forward load value Load of each fan on the AN side, and collect the forward signal strength value SINR measured by the terminal through the RouteUpdate message sent by each terminal, and also form the list shown in Table 1. According to the agreement, Load is a non-negative number, and SINR can be a negative or non-negative number. The S_L value can also be negative or non-negative.

That is, whether it is the NLB-Legacy algorithm or the NLB-New algorithm, the NLB algorithm mechanism is: First, the carrier fan whose carrier fan forward signal strength value is too small is excluded, and then the S_L of each carrier fan is calculated, that is, S_L=SINR-Load, The S_L value of all the carriers, if the current service fan's S_L value is the largest, the current carrier fan is still the service carrier fan; if the current service carrier fan's S_L value is not the largest and the S_L largest carrier fan minus the current If the S_L of the service carrier fan is greater than 2dB, select the S_L The largest carrier fan acts as a service carrier fan.

As shown in Figure 1, there are two fields in the Loadlnformation message indicating the load fan forward load values, which are the Loading Adjust field and the NeighborSectorLoadingAdjust field, where:

The LoadingAdjust field, used to represent the forward load value of a carrier fan;

The NeighborSectorLoadingAdjust field indicates the forward load value of the neighboring sector fan of the carrier fan corresponding to the forward load value indicated by the LoadingAdjust field, and the neighboring sector fan corresponding to the field is consistent with the order in which the neighboring sector fan in the SectorParameter message appears. The SectorParameter message is also an existing message in the protocol standard.

Both of these fields use 5 bits to represent the unsigned number of forward load values in 0.5dB, so the range is 0~15.5dB.

According to the current agreement, when using the NLB algorithm to determine the service fan, the forward load ranges from 0 to 15.5 dB. In fact, the inventor of the present case found through actual tests that the actual forward load of the fan is The range can be -10dB~30dB. In determining the forward load value of each carrier fan, the actual processing will convert the Load value less than 0 to OdB according to the principle of the lowest and highest range, and convert the Load value exceeding 15.5dB to 15.5dB. If the load values of the two carrier fans are both less than 0, but the load values between them are quite different, the algorithm will be misjudged when the NLB algorithm is performed. Similarly, if the load values of the two carrier fans exceed 15.5dB, The difference between the Load values between them is large, which will lead to misjudgment of the algorithm. It is impossible to accurately determine the service carrier fan, and thus the system network load balance cannot be achieved, and the system capacity cannot be effectively improved. Summary of the invention

Embodiments of the present invention provide a method, device, and system for network load balancing, which are used to improve the effect of network load balancing, effectively improve system capacity, and improve the accuracy of service-bearing fan decisions.

A method for network load balancing, the method comprising:

Receiving a load information Loadlnformation message sent by the access network side network device, where the value of the load fan forward load value carried in the Loadlnformation message is less than 0 Bay, and / or maximum greater than 15.5 decibels;

According to the load fan forward load value carried in the Loadlnformation message, the service load fan is determined by the network load balancing NLB algorithm.

A method for network load balancing, the method comprising:

Determining the forward load value of the carrier fan;

Sending a load information Loadlnformation message to the terminal according to the determined forward load value, where the value of the load fan forward load value carried in the Loadlnformation message is less than 0 dB, and/or the maximum value is greater than 15.5 dB, indicating The terminal determines the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnformation message.

A method for network load balancing, the method comprising:

Determining the forward load value of each carrier fan in the network;

Adding a forward load value of each of the load fans and averaging to obtain a network forward load value; adjusting a forward load value of each of the load fans according to the network forward load value; Carrying the fan forward load value, determining the service carrier fan of the terminal by using the network load balancing NLB algorithm;

And adjusting, according to the forward load value of the network, a forward load value of each of the load fans, including:

When the network forward load value is lower than the first set value, for each carrier fan, the sum of the forward load value of the carrier fan and the first adjustment value is used as the forward load value of the carrier fan, An adjustment value is greater than 0;

When the network forward load value is higher than the second set value, for each carrier fan, the sum of the forward load value of the carrier fan and the second adjustment value is used as the forward load value of the carrier fan, The second adjustment value is less than 0;

When the forward load value of the network is not lower than the first set value and not higher than the second set value, the forward load value of the carrier fan is kept unchanged for each carrier fan. A method for network load balancing, the method comprising:

Determining the forward load value of each carrier fan in the network;

Adding a forward load value of each of the load fans to obtain a network forward load value; adjusting a forward load value of each of the load fans according to the network forward load value; according to the adjusted load The fan forward load value is sent to the terminal by a LoadInfoforaiation message, and the terminal is instructed to determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message;

When the forward load value of the network is not lower than the first set value and not higher than the second set value, the forward load value of the carrier fan is kept unchanged for each carrier fan.

A device for network load balancing, the device comprising:

The receiving module is configured to receive load information sent by the network device on the access network side

The loadlnforaiation message, the minimum range of the load fan forward load value carried in the Loadlnforaiation message is less than 0 decibels, and/or the maximum value is greater than 15.5 decibels;

The decision module is configured to determine the service carrier fan by using a network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message.

The receiving module may be a receiver, and the decision module may be a decision maker. When performing processing, a central processing unit (CPU) is used, and a digital signal processor is used. (DSP, Digital Singnal Processor) or programmable logic array (FPGA, Field - Programmable Gate Array) implementation.

A device for network load balancing, the device comprising:

Determining a module configured to determine a forward load value of the carrier fan;

The sending module is configured to send a load information Loadlnforaiation message to the terminal according to the determined forward load value, where a value of the load fan forward load value carried in the Loadlnforaiation message is less than 0 dB, and/or a maximum value More than 15.5 dB, the terminal is instructed to determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message.

The sending module may be a transmitter, and the determining module may be a determiner. When performing processing, a central processing unit (CPU), a digital signal processor (DSP, Digital Singnal Processor) or programmable logic is used. Array (FPGA, Field - Programmable Gate Array) implementation.

A network load balancing system, where the system includes a terminal and an access network side network device, where:

The network device is configured to determine a forward load value of the load fan, and send a load information Loadlnformation message to the terminal according to the determined forward load value, where the load fan forward load value is carried in the Loadlnforaiation message The minimum value is less than 0 dB, and/or the maximum value is greater than 15.5 dB;

The terminal is configured to receive the Loadlnformation message sent by the network device, and determine a service carrier fan by using a network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnformation message.

A device for network load balancing, the device comprising:

Determining a module configured to determine a forward load value of each of the carriers in the network;

An adjustment module configured to average the forward load values of each of the load fans and obtain an average a network forward load value, when the network forward load value is lower than the first set value, for each of the carrier fans, the sum of the forward load value of the carrier fan and the first adjustment value is used as the carrier fan a forward load value, the first adjustment value is greater than 0; when the network forward load value is higher than the second set value, the forward load value of the load fan and the second adjustment are performed for each of the carrier fans The sum of the values is the forward load value of the carrier fan, and the second adjustment value is less than 0; when the network forward load value is not lower than the first set value, and is not higher than the second set value, Each of the carrier fans maintains the forward load value of the carrier fan; the decision module is configured to determine the service carrier fan of the terminal by using the network load balancing NLB algorithm according to the adjusted load forward load value of the adjustment module.

The determining module, the adjusting module, and the decision module may be respectively a determiner, an adjuster, and a decision maker. When performing processing, a central processing unit (CPU), a digital signal processor (DSP, Digital Singnal Processor) or Implementation of a Field-Programmable Gate Array (FPGA).

A device for network load balancing, the device comprising:

The adjustment module is configured to average the forward load values of each of the load fans and obtain an average value of the network forward load. When the network forward load value is lower than the first set value, for each of the loads a fan, the sum of the forward load value of the carrier fan and the first adjustment value is used as a forward load value of the carrier fan, the first adjustment value is greater than 0; and the network forward load value is higher than the second set value And, for each of the carrier fans, a sum of a forward load value of the carrier fan and a second adjustment value is used as a forward load value of the carrier fan, and the second adjustment value is less than 0; When the value is not lower than the first set value, and is not higher than the second set value, the forward load value of the carrier fan is kept unchanged for each of the carrier fans; the sending module is configured to be adjusted according to the adjustment module The load fan forward load value is sent to the terminal to send a load information Loadlnformation message, and the terminal is instructed to determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnformation message.

The determining module, the adjusting module, and the sending module may be determiners, adjusters, and transmitters, respectively. When performing processing, it is implemented by a central processing unit (CPU), a digital signal processor (DSP, Digital Singnal Processor), or a Field-Programmable Gate Array (FPGA).

According to the solution provided by the embodiment of the present invention, the Loadlnforaiation message specified by the protocol may be modified, and the range of the forward load value of the load fan carried in the message is expanded, so that the forward load value of the carrier fan carried in the message is closer to the actual value. Carrying the fan forward load value, thereby improving the accuracy of the service carrier fan determined by the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message, thereby better achieving network load balancing and effectively improving System capacity.

It is also possible to increase or decrease the actual load fan forward load value as a whole, so that the adjusted load forward load value of the carrier is closer to the range of 0 to 15.5 decibels specified by the agreement, even according to the principle of the highest and lowest ranges. , the converted load fan forward load value is converted, and the error between the converted load fan forward load value and the load fan forward load value before conversion (adjusted load fan forward load value) may also be used. The effective reduction can also improve the accuracy of the service carrier fan determined by the network load balancing NLB algorithm, thereby better achieving network load balancing and effectively improving system capacity. DRAWINGS

1 is a schematic diagram of a format of a Loadlnforaiation message provided by the prior art;

2 is a schematic diagram of steps of a network load balancing method according to Embodiment 1 of the present invention; FIG. 3 is a schematic diagram of a format of a Loadlnforaiation message according to Embodiment 1 of the present invention; FIG. 4 is a flowchart of a network load balancing method according to Embodiment 2 of the present invention; FIG. 5 is a schematic structural diagram of a network load balancing apparatus according to Embodiment 3 of the present invention; FIG. 6 is a schematic structural diagram of a network load balancing apparatus according to Embodiment 4 of the present invention; FIG. 8 is a schematic structural diagram of a network load balancing apparatus according to Embodiment 6 of the present invention; FIG. 9 is a schematic structural diagram of a network load balancing apparatus according to Embodiment 7 of the present invention. detailed description

In the prior art, when the NLB algorithm is used to determine the service carrier fan of the terminal, the actual load fan forward load value needs to be converted to 0~15.5dB according to the highest and lowest values, resulting in the converted carrier fan in the NLB algorithm. The problem that the load value cannot accurately represent the actual load-bearing load value of the fan is provided. The embodiment of the present invention provides that the terminal that supports the Loadlnformation message can be provided with a Loadlnformation message carrying a forward load value of the load fan in a larger value range. The load fan forward load value in the Loadlnformation message can more accurately represent the actual load fan forward load value, so that the terminal improves the decision service terminal when using the load fan forward load value decision service carrier fan in the Loadlnformation message. accuracy.

It is also possible to make an overall offset (increase or decrease) of the forward load value of each carrier fan in the network on the AN side, and to use the forward load value after the overall offset to represent the actual forward load value, even if Converting the offset forward load value to 0~15.5dB according to the principle of the highest and lowest range, can also make the forward load value of the loaded fan more accurately represent the actual load fan forward load value. After the offset or after the load fan forward load value decision service carrier fan, the AN side or the terminal improves the accuracy of the determined service terminal.

The solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

Embodiment 1

A first embodiment of the present invention provides a method for network load balancing. The step of the method may be as shown in FIG. 2, including:

Step 101: The access network side network device determines a forward load value of the carrier fan.

In this step, the access network side network device (such as the base station controller) can determine the actual forward load value of the carrier fan. Specifically, the network device on the access network side can determine the forward load value of the carrier fan according to the method for determining the forward load value of the carrier fan required by the existing NLB algorithm.

Step 102: The network device on the access network sends a Loadlnformation message.

In this embodiment, it is assumed that the terminal can parse the Loadlnformation message, and therefore, in the present In the step, the access network side network device may send to each terminal corresponding to the fan.

The Loadlnforaiation message carries the forward load value of the carrier fan in the Loadlnforaiation message.

In order to enable the terminal to improve the accuracy of determining the service carrier fan, the value range of the load fan forward load value that can be carried in the Loadlnforaiation message can be expanded. Therefore, in this step, the access network side network device sends the terminal to the terminal. The value of the load fan forward load value carried in the Loadlnforaiation message is less than 0 dB, and/or the maximum value is greater than 15.5 dB.

Specifically, in order to increase the value range of the load fan forward load value carried in the Loadlnforaiation message, the number of bits in the LoadingAdjust field and the NeighborSectorLoading Adjust field may be expanded, so that the number of bits in the LoadingAdjust field and the NdghborSectorLoadingAdjust field are both greater than 5. And is a two's complement in 0.5dB. For example, as shown in Figure 3, the number of bits in the LoadingAdjust field and the NdghborSectorLoadingAdjust field can both be 8.

In fact, the inventor found through actual measurement that the actual forward load value of the fan is generally between -10 and 30 dB. Therefore, in this step, the load carried in the Loadlnforaiation message can be specified. The fan forward load value ranges from -63.5dB to 64dB. Therefore, the value of the forward load value of the load fan carried in the Loadlnforaiation message is too large, which causes the message to occupy more bytes, increases the transmission time of the message, and increases the load of the system.

Step 103: The terminal decision service carries a fan.

The terminal that receives the Loadlnforaiation message can determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message.

Specifically, the terminal may determine the service carrier fan according to the NSB-New algorithm, according to the forward fan load value carried in the received Loadlnforaiation message, and the forward signal strength value of the carrier fan measured by itself. Because the terminal is used to determine the accuracy of the forward load value of the load fan of the service fan, which is higher than the accuracy of the forward load value of the load fan carried in the Loadlnf ormation message specified in the prior art protocol, the terminal can effectively improve the service load. The accuracy of the fan decision is made to better achieve network load balancing and further increase the system capacity.

Embodiment 2

A second embodiment of the present invention provides a method for network load balancing. The step of the method may be as shown in FIG. 4, including:

Step 201: The access network side network device determines a forward load value of the carrier fan.

In this step, the access network side network device (such as the base station controller) can determine the actual forward load value of each carrier fan in the network. Specifically, the access network side network device may determine the forward load value of the carrier fan according to the method for determining the forward load value of the carrier fan required by the existing NLB algorithm.

Step 202: Access the network side network device to adjust the forward load value of the carrier fan.

Since the forward load value of the carrier fan specified in the NLB algorithm ranges from 0 to 15.5 dB, the actual load fan forward load value may not be in the range, in order to make the actual according to the highest and lowest range principles. When the forward load value of the load fan is switched to 0~15.5dB specified by the protocol, the error between the forward load value of the loaded fan and the forward load value of the actual load fan can be reduced. In this step, the actual load fan can be used. The forward load value is offset as a whole, so that after the overall load forward load value of the carrier is subsequently converted to 0~15.5dB, the converted load bearing forward load value can better represent the actual load. Fan load value.

Specifically, the forward load value of each carrier fan in the network may be accumulated and averaged to obtain a network forward load value, and the forward load value of each load fan is adjusted according to the network forward load value. Wherein, when the network forward load value is lower than the first set value, the sum of the forward load value of the carrier fan and the first adjustment value may be used as the forward load value of the carrier fan for each carrier fan. The first adjustment value is greater than 0; when the network forward load value is higher than the second set value, for each carrier fan, the sum of the forward load value of the carrier fan and the second adjustment value is used as the carrier fan Forward load value, the second tone The integer value is less than 0; when the network forward load value is not lower than the first set value and not higher than the second set value, the forward load value of the carrier fan is kept unchanged for each carrier fan.

For example, it is assumed that the network includes three carrier fans, which are respectively labeled as the first carrier fan, the second carrier fan, and the third carrier fan, and it is assumed that the first carrier fan forward load value determined in step 201 is -20, The forward load value of the two-load fan is -20.5, and the forward load value of the third carrier fan is -21. Then, the forward load value of the network can be determined to be -20.5, and the first set value is assumed to be 0. An adjustment value is 21, and since the network forward load value is lower than the first set value, the first load fan forward load value can be adjusted to 1 by using the first adjustment value, and the second load fan forward load is used. The value is adjusted to 0.5 and the forward load value of the third carrier fan is zero. However, according to the highest and lowest range principles of the prior art, the forward load value of the first carrier fan, the forward load value of the second carrier fan, and the forward load value of the third carrier fan are both zero. Obviously, when the NLB algorithm is used to determine the service fan, the adjusted load forward load value can be used to improve the decision accuracy.

It can be seen from the above example that if the load of the fan in the network is relatively balanced and the forward load value of each of the carriers is relatively close, the first adjustment value and the first range of the appropriate range are set according to the solution provided in this embodiment. The second adjustment value does not need to be converted according to the highest and lowest range principles, that is, the adjusted forward load value can satisfy the range of the forward load value specified by the protocol from 0 to 15.5 dB, and the adjusted forward direction can be directly used subsequently. The load value decision service carries the fan, avoiding the error caused by the conversion, and thus can greatly improve the accuracy of the serviced service fan.

Even after adjustment, it is still necessary to convert the adjusted forward load value to the value range of 0~15.5dB according to the highest and lowest range principles, and also reduce the number of forward load values that need to be converted. Improve the accuracy of the decision-making service fan.

In this embodiment, if the terminal does not support the parsing of the Loadlnformation message, step 203 may be continued. If the terminal supports the parsing of the Loadlnformation message, step 204 may continue.

Step 203: Access a network side network device to determine a service carrying fan. If the terminal does not support the parsing of the Loadlnforaiation message, in this embodiment, the network load balancing NLB algorithm may be used by the access network side network device to determine the service carrier fan of the terminal according to the adjusted load forward load value of the carrier.

The access network side network device may use the NLB-Legacy algorithm to collect the forward signal strength value measured by the terminal according to the adjusted load forward load value of the terminal (the forward signal strength value may be passed) The RouteUpdate message sent by the terminal is collected to determine the service carrier fan of the terminal.

Specifically, in this step, it may be determined whether each adjusted forward load value of the carrier fan belongs to a value range of 0 to 15.5 dB;

If it is determined that each adjusted carrier forward load value belongs to a value range of 0 to 15.5 dB, the NLB algorithm is used according to each adjusted carrier fan forward load value and the collected forward signal strength value. Determining the service carrier fan;

If it is determined that the at least one adjusted carrier forward load value does not belong to a value range of 0 to 15.5 dB, the at least one adjusted carrier fan forward load value is converted to a value range of 0 to 15.5 dB, And using the NLB algorithm to determine the service carrier fan according to each converted fan forward load value, each unconverted adjusted carrier fan forward load value, and the collected forward signal strength value; wherein, one will be The adjusted forward load value of the carrier fan is converted to a value range of 0 to 15.5 dB, which specifically includes: when the forward load value of the carrier fan is greater than 15.5 dB, the forward load value of the carrier fan is converted to 15.5 dB. When the forward load value of the carrier fan is less than 0 dB, the forward load value of the carrier fan is converted into OdB, that is, the conversion is performed according to the principle of the highest and lowest ranges.

After the access network side network device determines the service carrier fan of the terminal, the process can be ended. Step 204: The network device on the access network sends a Loadlnforaiation message.

If the terminal can parse the Loadlnforaiation message, in this step, the network device on the access network side can send a Loadlnforaiation message to each terminal corresponding to the fan according to the adjusted load forward load value of the fan. If the adjusted load fan forward load value is 0~15.5dB Range, the adjusted load fan forward load value can be sent to the terminal through the Loadlnformation message. Of course, if the adjusted forward load value of the carrier fan does not belong to the value range of 0~15.5dB, the adjusted forward load value of the carrier fan can be continuously converted to 0~15.5dB according to the principle of the highest and lowest range. The range of values and the converted forward load value of the carrier is sent to the terminal through the Loadlnformation message.

Specifically, it can be determined whether each adjusted forward load value of the carrier fan belongs to a value range of 0 to 15.5 dB;

If it is determined that each adjusted carrier forward load value belongs to a value range of 0 to 15.5 dB, each adjusted carrier fan forward load value is sent to the terminal through a Loadlnformation message; if at least one adjustment is determined The load fan forward load value does not belong to the value range of 0~15.5dB, and the at least one adjusted load fan forward load value is converted to a value range of 0~15.5dB, and each converted The load fan forward load value, and each unconverted adjusted carrier fan forward load value are sent to the terminal through a Loadlnformation message;

Wherein, converting an adjusted load fan forward load value to a value range of 0 to 15.5 dB, specifically, converting the load fan forward load value to when the load fan forward load value is greater than 15.5 dB 15.5dB, when the load fan forward load value is less than OdB, the load fan forward load value is converted to 0dB.

Step 205: The terminal decision service carries a fan.

The terminal that receives the Loadlnformation message can determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnformation message.

Specifically, the terminal may determine the service carrier fan according to the forward fan load value of the carrier fan and the measured forward signal strength of the carrier fan carried in the received Loadlnformation message according to the NLB-New algorithm.

In this embodiment, because the accuracy of the forward load value of the carrier fan for determining the service carrier fan on the terminal or the AN side is higher than the accuracy of the forward load value of the carrier fan specified in the prior art protocol, therefore, The end or the AN side can effectively improve the accuracy of the decision of the service carrier fan, better realize the network load balance, and further improve the system capacity.

Based on the same inventive concept as the first embodiment of the present invention, the following devices and systems are provided.

Embodiment 3

Embodiment 3 of the present invention provides a device for network load balancing, which may be integrated in a terminal. The structure of the device may be as shown in FIG. 5, including:

The receiving module 11 is configured to receive a load information Loadlnforaiation message sent by the access network side network device, where the value of the load fan forward load value carried in the Loadlnforaiation message is less than 0 dB, and/or the maximum value is greater than 15.5 dB. ;

The decision module 12 is configured to determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message.

Embodiment 4

The fourth embodiment of the present invention provides a device for network load balancing, which can be integrated into a network device that is connected to the network. The structure of the device can be as shown in FIG.

The determining module 21 is configured to determine a forward load value of the carrier fan;

The sending module 22 is configured to send a load information Loadlnforaiation message to the terminal according to the determined forward load value, where the value of the load fan forward load value carried in the Loadlnforaiation message is less than 0 dB, and/or the maximum value. More than 15.5 dB, the terminal is instructed to determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnforaiation message.

Embodiment 5

A fifth embodiment of the present invention provides a system for network load balancing. The structure of the system is as shown in FIG. 7, and includes a terminal 31 and an access network side network device 32, where:

The network device 32 is configured to determine a forward load value of the carrier fan, and send a load information Loadlnforaiation message to the terminal according to the determined forward load value, where the Loadlnforaiation The value of the forward load value of the carrying fan carried in the interest is less than 0 dB, and/or the maximum is greater than 15.5 dB;

The terminal 31 is configured to receive the Loadlnformation message sent by the network device, and determine a service carrier fan by using a network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnformation message.

Based on the same inventive concept as the second embodiment of the present invention, the following means are provided.

Embodiment 6

The sixth embodiment of the present invention provides a device for network load balancing, which can be integrated into a network device that is connected to the network. The structure of the device can be as shown in FIG.

The determining module 41 is configured to determine a forward load value of each of the carriers in the network;

The adjustment module 42 is configured to average the forward load values of the each fan and obtain an average value of the network forward load. When the network forward load value is lower than the first set value, for each of the loads a fan, the sum of the forward load value of the carrier fan and the first adjustment value is used as a forward load value of the carrier fan, the first adjustment value is greater than 0; and the network forward load value is higher than the second set value And, for each of the carrier fans, a sum of a forward load value of the carrier fan and a second adjustment value is used as a forward load value of the carrier fan, and the second adjustment value is less than 0; When the value is not lower than the first set value, and is not higher than the second set value, the forward load value of the carrier fan is kept unchanged for each of the carrier fans; the decision module 43 is configured to adjust according to the adjustment module. After the load fan forward load value, the network load balancing NLB algorithm is used to determine the service carrier fan of the terminal.

The decision module 43 is specifically configured to determine whether each adjusted load forward load value of the carrier fan belongs to a value range of 0 to 15.5 decibels; if it is determined that each adjusted load fan forward load value belongs to 0-15.5 decibels The value range is determined by using the NLB algorithm to determine the service carrier fan of the terminal according to each adjusted carrier forward load value and the collected forward signal strength value; if at least one adjusted carrier fan forward load is determined If the value does not belong to the value range of 0 to 15.5 decibels, the at least one adjusted carrier fan forward load value is converted to a value range of 0 to 15.5 decibels, and each The converted carrier forward load value, each unconverted adjusted carrier fan forward load value and the collected forward signal strength value, determine the service carrier fan of the terminal by using the NLB algorithm; wherein, after adjusting The forward load value of the load fan is converted to a value range of 0 to 15.5 decibels, specifically, when the forward load value of the load fan is greater than 15.5 decibels, the forward load value of the load fan is converted to 15.5 decibels, When the fan forward load value is less than 0 dB, the carrier fan forward load value is converted to 0 dB.

Example VII.

The seventh embodiment of the present invention provides a device for network load balancing, which can be integrated into a network device that is connected to the network. The structure of the device can be as shown in FIG.

The determining module 51 is configured to determine a forward load value of each of the carriers in the network;

The adjustment module 52 is configured to accumulate the forward load values of each of the load fans and average them to obtain a network forward load value. When the network forward load value is lower than the first set value, for each of the loads a fan, the sum of the forward load value of the carrier fan and the first adjustment value is used as a forward load value of the carrier fan, the first adjustment value is greater than 0; and the network forward load value is higher than the second set value And, for each of the carrier fans, a sum of a forward load value of the carrier fan and a second adjustment value is used as a forward load value of the carrier fan, and the second adjustment value is less than 0; When the value is not lower than the first set value, and is not higher than the second set value, the forward load value of the carrier fan is kept unchanged for each of the carrier fans; the sending module 53 is configured to adjust according to the adjustment module. The load fan forward load value is sent to the terminal to send a load information Loadlnformation message, and the terminal is instructed to determine the service carrier fan by using the network load balancing NLB algorithm according to the load fan forward load value carried in the Loadlnformation message.

The sending module 53 is specifically configured to determine whether each adjusted carrier forward load value belongs to a value range of 0 to 15.5 decibels; if it is determined that each adjusted carrier fan forward load value belongs to 0-15.5 decibels For the range of values, the adjusted load forward load value is sent to the terminal through the Loadlnformation message; if it is determined that at least one adjusted load fan forward load value does not belong to the range of 0 to 15.5 dB, then Converting the at least one adjusted carrier fan forward load value to a value range of 0 to 15.5 decibels, and converting each of the converted carrier fan forward load values, And each unconverted adjusted load fan forward load value is sent to the terminal through a Loadlnformation message; wherein, an adjusted load fan forward load value is converted to a value range of 0 to 15.5 dB, specifically including When the forward load value of the carrier fan is greater than 15.5 decibels, the forward load value of the carrier fan is converted to 15.5 decibels, and when the forward load value of the carrier fan is less than 0 decibels, the forward load value of the carrier fan is converted to 0 decibels. .

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the application can take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on the computer or other programmable device to produce the computer The processing is implemented such that instructions executed on a computer or other programmable device provide steps for implementing the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

While the preferred embodiment of the present application has been described, those skilled in the art can make further changes and modifications to these embodiments once the basic inventive concept is known. Therefore, it is intended that the appended claims be interpreted as including

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Industrial applicability

The embodiment of the present invention modifies the Loadlnformation message, and expands the value range of the load fan forward load value carried in the message, so that the forward load value of the carrier fan carried in the message is closer to the actual load fan forward load value, thereby The accuracy of the service carrier fan determined by the network load balancing NLB algorithm is improved according to the load fan forward load value carried in the Loadlnformation message, so that the network load balancing is better realized by using the embodiment of the present invention, and the system capacity is effectively improved. .

It is also possible to increase or decrease the actual load fan forward load value as a whole, so that the adjusted load forward load value of the carrier is closer to the value range of 0~15.5 decibels specified by the agreement, even according to the principle of the highest and lowest range. , the converted load fan forward load value is converted, and the error between the converted load fan forward load value and the load fan forward load value before conversion (adjusted load fan forward load value) may also be used. The effective reduction can also improve the accuracy of the service carrier fan determined by the network load balancing NLB algorithm, thereby better achieving network load balancing and effectively improving system capacity.

Claims

claims

1. A method of network load balancing, the method includes:

Receive the load information Loadlnformation message sent by the network device on the access network side. The minimum value of the carrier fan forward load value carried in the Loadlnformation message is less than 0 decibels, and/or the maximum value is greater than 15.5 decibels;

According to the forward load value of the carrier fan carried in the LoadInformation message, the network load balancing NLB algorithm is used to determine the service carrier fan.

2. The method of claim 1, wherein the number of bits of the LoadingAdjust field and the NeighborSectorLoadingAdjust field carried in the Loadlnformation message are both greater than 5, and are two's complement in units of 0.5 decibels.

3. The method according to claim 1 or 2, wherein the carrier fan forward load value carried in the LoadInformation message ranges from -63.5 decibels to 64 decibels.

4. A method for network load balancing, wherein the method includes:

Determine the forward load value of the carrier fan;

According to the determined forward load value, a load information Loadlnformation message is sent to the terminal. The minimum value of the carrier fan forward load value carried in the Loadlnformation message is less than 0 decibels, and/or the maximum value is greater than 15.5 decibels, indicating that The terminal uses the network load balancing NLB algorithm to determine the serving carrier sector based on the carrier fan forward load value carried in the Loadlnformation message.

5. A method of network load balancing, the method includes:

Determine the forward load value of each carrier fan in the network;

The forward load value of each carrier fan is accumulated and averaged to obtain the network forward load value; According to the network forward load value, the forward load value of each carrier fan is adjusted; According to the adjusted Carrier fan forward load value, using the network load balancing NLB algorithm to determine the terminal's service carrier fan;

Wherein, the forward load value of each carrier fan is adjusted according to the network forward load value, include:

When the network forward load value is lower than the first set value, for each carrier fan, the sum of the forward load value of the carrier fan and the first adjustment value is used as the forward load value of the carrier fan, and the third One adjustment value is greater than 0;

When the network forward load value is higher than the second set value, for each carrier fan, the sum of the forward load value of the carrier fan and the second adjustment value is used as the forward load value of the carrier fan, and the third The second adjustment value is less than 0;

When the network forward load value is not lower than the first set value and not higher than the second set value, for each carrier fan, the forward load value of the carrier fan is kept unchanged.

6. The method of claim 5, wherein the network load balancing NLB algorithm is used to determine the service carrier fan of the terminal according to the adjusted forward load value of the carrier fan, specifically including:

Determine whether each adjusted forward load value of the carrier fan belongs to the value range of 0~15.5 decibels; if it is determined that each adjusted forward load value of the carrier fan belongs to the value range of 0~15.5 decibels, then based on each The adjusted forward load value of the carrier fan and the collected forward signal strength value are used to determine the service carrier fan of the terminal using the NLB algorithm;

If it is determined that at least one adjusted forward load value of the carrier fan does not belong to the value range of 0 to 15.5 decibels, then convert the at least one adjusted forward load value of the carrier fan to the value range of 0 to 15.5 decibels, And based on the forward load value of each converted carrier fan, the forward load value of each unconverted adjusted carrier fan and the collected forward signal strength value, the NLB algorithm is used to determine the service carrier fan of the terminal;

Among them, converting an adjusted forward load value of the carrier fan to a value range of 0~15.5 decibels specifically includes: when the forward load value of the carrier fan is greater than 15.5 decibels, converting the forward load value of the carrier fan into 15.5 decibels. When the forward load value of the carrier fan is less than 0 decibels, the forward load value of the carrier fan is converted to 0 decibels.

7. A method of network load balancing, the method includes: Determine the forward load value of each carrier fan in the network;

Accumulate and average the forward load value of each carrier fan to obtain the network forward load value; adjust the forward load value of each carrier fan according to the network forward load value; adjust the forward load value of each carrier fan according to the adjusted load value fan forward load value, send the load information Loadlnformation message to the terminal, instructing the terminal to use the network load balancing NLB algorithm to determine the service carrier fan based on the carrier fan forward load value carried in the Loadlnformation message;

Wherein, adjusting the forward load value of each carrier fan according to the network forward load value includes:

8. The method of claim 7, wherein the load information LoadInformation message is sent to the terminal according to the adjusted forward load value of the carrier fan, specifically including:

Determine whether each adjusted forward load value of the carrier fan belongs to the value range of 0~15.5 decibels; if it is determined that each adjusted forward load value of the carrier fan belongs to the value range of 0~15.5 decibels, then each The adjusted forward load value of the carrier fan is sent to the terminal through the Loadlnformation message;

If it is determined that at least one adjusted forward load value of the carrier fan does not belong to the value range of 0 to 15.5 decibels, then convert the at least one adjusted forward load value of the carrier fan to the value range of 0 to 15.5 decibels, and combine each converted carrier fan forward load value and each unconverted adjusted The forward load value of the carrier fan is sent to the terminal through the Loadlnforaiation message;

9. A network load balancing device, the device includes:

The receiving module is configured to receive the load information Loadlnforaiation message sent by the network device on the access network side, where the minimum value of the carrier fan forward load value carried in the Loadlnforaiation message is less than 0 decibels, and/or the maximum value is greater than 15.5 decibels. ;

The decision-making module is configured to use the network load balancing NLB algorithm to determine the service carrier fan based on the carrier fan forward load value carried in the Loadlnforaiment message.

10. A network load balancing device, the device includes:

a determining module configured to determine the forward load value of the carrier fan;

The sending module is configured to send a load information Loadlnformation message to the terminal according to the determined forward load value, where the minimum value of the carrier fan forward load value carried in the Loadlnformation message is less than 0 decibels, and/or the maximum value Greater than 15.5 decibels, the terminal is instructed to use the network load balancing NLB algorithm to determine the service carrier fan based on the carrier fan forward load value carried in the Loadlnformation message.

11. A network load balancing system, the system includes a terminal and an access network side network device, wherein:

The network device is configured to determine the forward load value of the carrier fan, and send a load information Loadlnformation message to the terminal according to the determined forward load value. The value range of the forward load value of the carrier fan carried in the Loadlnformation message is The minimum value is less than 0 dB, and/or the maximum value is greater than 15.5 dB;

The terminal is configured to receive the LoadInformation message sent by the network device, According to the forward load value of the carrier fan carried in the LoadInformation message, the network load balancing NLB algorithm is used to determine the service carrier fan.

12. A network load balancing device, the device includes:

a determining module configured to determine the forward load value of each carrier fan in the network;

The adjustment module is configured to accumulate and average the forward load value of each carrier fan to obtain the network forward load value. When the network forward load value is lower than the first set value, for each carrier fan fan, the sum of the forward load value of the carrier fan and the first adjustment value is taken as the forward load value of the carrier fan, and the first adjustment value is greater than 0; when the network forward load value is higher than the second set value When , for each carrier fan, the sum of the forward load value of the carrier fan and the second adjustment value is used as the forward load value of the carrier fan, and the second adjustment value is less than 0; in the network forward load When the value is not lower than the first set value and not higher than the second set value, for each carrier fan, keep the forward load value of the carrier fan unchanged; the decision-making module is configured to adjust according to the adjustment module Based on the forward load value of the carrier fan, the network load balancing NLB algorithm is used to determine the service carrier fan of the terminal.

13. The device according to claim 12, wherein the decision-making module is specifically used to determine whether each adjusted forward load value of the carrier fan belongs to the value range of 0 to 15.5 decibels; if it is determined that each adjusted forward load value The forward load values of the carrier fans all belong to the value range of 0~15.5 decibels. Then based on each adjusted forward load value of the carrier fan and the collected forward signal strength value, the NLB algorithm is used to determine the service carrier fan of the terminal. ; If it is determined that at least one adjusted forward load value of the carrier fan does not belong to the value range of 0-15.5 decibels, then convert the at least one adjusted forward load value of the carrier fan to the value range of 0-15.5 decibels. , and use the NLB algorithm to determine the service carrier fan of the terminal based on each converted carrier fan forward load value, each unconverted adjusted carrier fan forward load value and the collected forward signal strength value; where , convert an adjusted forward load value of the carrier fan to a value range of 0~15.5 decibels, specifically including: when the forward load value of the carrier fan is greater than 15.5 decibels, convert the forward load value of the carrier fan to 15.5 decibel, when the forward load value of the carrier fan is less than 0 decibels, the forward load value of the carrier fan is converted to 0 decibels.

14. A network load balancing device, the device includes:

The adjustment module is configured to accumulate and average the forward load value of each carrier fan to obtain the network forward load value. When the network forward load value is lower than the first set value, for each carrier fan fan, the sum of the forward load value of the carrier fan and the first adjustment value is taken as the forward load value of the carrier fan, and the first adjustment value is greater than 0; when the network forward load value is higher than the second set value When , for each carrier fan, the sum of the forward load value of the carrier fan and the second adjustment value is used as the forward load value of the carrier fan, and the second adjustment value is less than 0; in the network forward load When the value is not lower than the first set value and not higher than the second set value, for each carrier fan, keep the forward load value of the carrier fan unchanged; the sending module is configured to adjust according to the adjustment module After obtaining the forward load value of the carrier fan, the load information Loadlnformation message is sent to the terminal, instructing the terminal to use the network load balancing NLB algorithm to determine the service carrier fan according to the forward load value of the carrier fan carried in the Loadlnformation message.

15. The device according to claim 14, wherein the sending module is specifically configured to determine whether each adjusted forward load value of the carrier fan belongs to a value range of 0 to 15.5 decibels; if it is determined that each adjusted forward load value The carrier fan forward load values all fall within the value range of 0~15.5 decibels, then each adjusted carrier fan forward load value is sent to the terminal through the Loadlnformation message; If at least one adjusted carrier fan forward load is determined The value does not belong to the value range of 0 to 15.5 decibels, then the at least one adjusted carrier fan forward load value is converted to the value range of 0 to 15.5 decibels, and each converted carrier fan forward load value is value, and each unconverted adjusted carrier fan forward load value is sent to the terminal through the Loadlnformation message; wherein, an adjusted carrier fan forward load value is converted to a value range of 0~15.5 decibels, specifically including: , when the forward load value of the carrier fan is greater than 15.5 dB, the forward load value of the carrier fan is converted to 15.5 dB; when the forward load value of the carrier fan is less than 0 dB, the forward load value of the carrier fan is converted to 0 dB.