WO2014166246A1

WO2014166246A1 - Method, device and system for balancing load among wireless networks

Info

Publication number: WO2014166246A1
Application number: PCT/CN2013/086794
Authority: WO
Inventors: 陈小锋; 张兴新
Original assignee: 华为技术有限公司
Priority date: 2013-04-12
Filing date: 2013-11-08
Publication date: 2014-10-16
Also published as: CN104105137A; CN104105137B

Abstract

Provided are a method, device and system for balancing the load among wireless networks, which relate to the field of communications and are used for balancing the load of different wireless networks, thereby improving the utilization rate of network resources and improving the total throughput of data transmission. The method provided in the embodiments of the present invention comprises: a terminal receiving a switching judgement condition sent by a second network, generating switching information corresponding to the switching judgement condition, and being switched from a first network to the second network under the condition where the switching information satisfies the switching judgement condition.

Description

Method, device and system for load balancing between wireless networks

Technical field

The present invention relates to the field of communications, and in particular, to a method, apparatus, and system for load balancing between wireless networks. Background technique

In the field of mobile communications, more and more terminals can simultaneously support multiple wireless transmission technologies (or wireless access technologies), for example, supporting both cellular technology and wireless fidelity (WiFi) technology. At the same time, users have higher and higher requirements for data transmission capabilities of mobile communications, requiring the network side to simultaneously deploy cellular networks and WiFi networks. Among them, the cellular technology may include: Global System of Mobile Communication (GSM) technology, Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) technology, long-term evolution (Long Term Evolution (LTE) technology, etc.; WiFi technology is also called Wireless Local Area Network (WLAN) technology.

Since WiFi has the characteristics of free or low tariff, when the network side deploys the cellular network and the WiFi network at the same time, once the terminal discovers the WiFi network, the WiFi network is usually preferred for data transmission, which may cause the load of the WiFi network to be too large, and the cellular The network resource utilization of the network is not high, and the total data transmission throughput is low.

Summary of the invention

Embodiments of the present invention provide a method, apparatus, and system for load balancing between wireless networks, which are used to balance the load of different wireless networks, improve the utilization of network resources, and improve the total throughput of data transmission.

In order to achieve the above object, embodiments of the present invention use the following technical solutions: The first aspect provides a method for load balancing between wireless networks, where the terminal has accessed the first network, and the method includes:

Receiving, by the terminal, a handover decision condition sent by the second network;

Generating switching information corresponding to the handover decision condition;

And switching from the first network to the second network if the handover information satisfies the handover decision condition.

With reference to the first aspect, in a first possible implementation manner, the first network is a wireless fidelity WiFi network, and the second network is a cellular network.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation manner, the handover decision condition includes: a handover decision threshold; the handover decision threshold is in a preset value range Inside;

The generating the handover information corresponding to the handover decision condition includes: randomly generating a value in the preset value range, and using the value as the handover information.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation, the handover decision condition includes: a load range of the WiFi network, a load range of the cellular network, and a handover decision threshold; The handover decision threshold is within a preset value range;

The generating the handover information corresponding to the handover decision condition includes: acquiring a load condition of the WiFi network and a load condition of the cellular network; and matching a load condition of the WiFi network with a load range of the WiFi network And if the load condition of the cellular network matches the load range of the cellular network, within the preset value range, a value is randomly generated, and the value is used as the handover information.

With reference to the second possible implementation manner of the first aspect or the third possible implementation manner, in a fourth possible implementation manner, the handover decision condition further includes: a service type;

The randomly generating a value and using the value as the switching information includes: In a case where the type of the service being accessed by the terminal matches the service type, a value is randomly generated, and the value is used as the switching information.

With reference to the first aspect, in a fifth possible implementation, the handover decision condition includes: a service type;

The generating the handover information corresponding to the handover decision condition includes: matching a type of the service that the terminal is accessing with the service type, and using the matching result as the handover information.

With reference to the first possible implementation manner of the first aspect, the fifth possible implementation manner, in the sixth possible implementation manner, the method further includes:

Receiving, by the terminal, the network information of the WiFi network that is sent by the cellular network, where the network information of the WiFi network includes: an identifier of a basic service set for which the handover decision condition is directed;

The generating the handover information corresponding to the handover decision condition includes: generating handover information corresponding to the handover decision condition according to an identifier of a basic service set to which the terminal belongs.

In combination with the first possible implementation of the first aspect, the sixth possible implementation manner, in a seventh possible implementation manner, the terminal is a terminal in a dormant state in the cellular network.

In a second aspect, a method for load balancing between wireless networks is provided, and the method includes:

Determining a handover decision condition;

Transmitting, by the second network, the handover decision condition, so that the terminal generates handover information corresponding to the handover decision condition, and switches from the first network to the first if the handover information satisfies the handover decision condition Two networks.

With reference to the second aspect, in a first possible implementation manner, the first network is a WiFi network, and the second network is a cellular network.

In combination with the second aspect or the first possible implementation of the second aspect, in the second In a possible implementation manner, the method further includes:

Determining, by the cellular network, network information of the WiFi network, where the network information of the WiFi network includes: an identifier of a basic service set of the WiFi network;

Broadcasting the network information of the WiFi network determined by the cellular network, so that the terminal generates handover information corresponding to the handover decision condition according to the identifier of the basic service set to which the terminal belongs.

With reference to the second aspect, or the first possible implementation manner of the second aspect, to the second possible implementation manner, in a third possible implementation manner, the handover decision condition includes: a handover decision threshold and/or Or business type.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a fourth possible implementation, the handover decision condition includes: a handover decision threshold, a load range of the WiFi network, and the cellular network Load range

Alternatively, the handover decision condition includes: a handover decision threshold, a service type, a load range of the WiFi network, and a load range of the cellular network.

In conjunction with the third possible implementation of the second aspect, in a fifth possible implementation, the method further includes:

Obtaining a load situation in the basic service set;

The handover decision threshold is determined according to a load condition of the basic service set. With reference to the second aspect, or the first possible implementation manner of the second aspect, the fifth possible implementation manner, in the sixth possible implementation manner, the terminal is in a dormant state in the cellular network Terminal.

The third aspect provides a terminal, where the terminal has accessed the first network, where the terminal includes: a receiving unit, a generating unit, and a switching unit, where

The receiving unit is configured to receive a handover decision condition sent by the second network, where the generating unit is configured to generate handover information corresponding to the handover decision condition transmitted by the receiving unit;

The switching unit, configured to satisfy, in the switching information, that the switching information is transmitted In the case of the handover decision condition transmitted by the receiving unit, switching from the first network to the second network.

With reference to the third aspect, in a first possible implementation, the first network is

A WiFi network, the second network is a cellular network.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in the second possible implementation manner, the handover decision condition includes: a handover decision threshold; the handover decision threshold is in a preset value range Inside;

The generating unit is specifically configured to randomly generate a value within the preset value range, and use the value as the switching information.

With reference to the first possible implementation manner of the third aspect, in a third possible implementation, the handover decision condition includes: a load range of the WiFi network, a load range of the cellular network, and a handover decision threshold; The handover decision threshold is within a preset value range;

The generating unit includes:

An obtaining module, configured to acquire a load condition of the WiFi network and a load condition of the cellular network;

a generating module, configured to: when a load condition of the WiFi network matches a load range of the WiFi network, and a load condition of the cellular network matches a load range of the cellular network, in the preset Within the range of values, a value is randomly generated and used as the switching information.

With reference to the second possible implementation manner of the third aspect, or the third possible implementation manner, in a fourth possible implementation manner, the handover decision condition further includes: a service type;

The generating unit is specifically configured to randomly generate a value when the type of the service that the terminal is accessing matches the service type, and use the value as the switching information.

With reference to the third aspect, in a fifth possible implementation manner, the switching decision strip The pieces include: business type;

The generating unit is specifically configured to match the type of the service that the terminal is accessing with the service type, and use the matching result as the switching information.

With reference to the first possible implementation manner of the third aspect, the fifth possible implementation manner, in the sixth possible implementation, the receiving unit is further configured to receive, by the cellular network, The network information of the WiFi network, where the network information of the WiFi network includes: an identifier of a basic service set for which the handover decision condition is directed;

The generating unit is specifically configured to generate, according to the identifier of the basic service set to which the terminal belongs, handover information corresponding to the handover decision condition.

With reference to the first possible implementation manner of the third aspect, the sixth possible implementation manner, in the seventh possible implementation manner, the terminal is a terminal in a dormant state in the cellular network.

According to a fourth aspect, a wireless network device is provided, where the wireless network device belongs to a second network, where the wireless network device includes: a determining unit and a broadcast unit, where the determining unit is configured to determine a handover decision condition;

The broadcast unit is configured to broadcast the handover decision condition transmitted by the determining unit, so that the terminal generates handover information corresponding to the handover decision condition, and if the handover information satisfies the handover decision condition, Switching from the first network to the second network.

With reference to the fourth aspect, in a first possible implementation manner, the first network is a WiFi network, and the second network is a cellular network.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation, the determining unit is further configured to: determine network information of the WiFi network, the network of the WiFi network The information includes: an identifier of a basic service set of the WiFi network;

The broadcast unit is further configured to broadcast network information of the WiFi network, so that And the terminal generates, according to the identifier of the basic service set to which the terminal belongs, handover information corresponding to the handover decision condition;

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, to any one of the second possible implementation manners, in a third possible implementation manner, the handover decision condition includes: a handover decision threshold and/or Or business type.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a fourth possible implementation, the handover decision condition includes: a handover decision threshold,

The load range of the WiFi network and the load range of the cellular network;

In conjunction with the third possible implementation of the fourth aspect, in a fifth possible implementation, the wireless network device further includes:

An obtaining unit, configured to acquire a load situation in the basic service set;

The determining unit is further configured to determine the handover decision threshold according to a load situation in the basic service set.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, to the fifth possible implementation manner, in a sixth possible implementation manner, the terminal is in a dormant state in the cellular network Terminal.

The fifth aspect provides a system for load balancing between wireless networks, including: a first network, a second network, and any one of the foregoing provided by the third aspect, where the terminal has accessed the first network, The second network includes any of the wireless network devices provided by the above fourth aspect.

The method, device and system for load balancing between wireless networks provided by the embodiments of the present invention, the terminal generates corresponding handover information according to the handover decision condition sent by the second network, and if the handover information satisfies the handover decision condition, the first network is used. Switching to the second network enables load balancing between different wireless networks, improving the utilization of network resources and the total throughput of data transmission. In the prior art, the terminal preferentially selects one The network causes the load of the network to be too large, which makes the network resource utilization low and the total data transmission throughput low. DRAWINGS

FIG. 1 is a flowchart of a method for load balancing between wireless networks according to an embodiment of the present invention;

2 is a flowchart of another method for load balancing between wireless networks according to an embodiment of the present invention;

FIG. 3 is a flowchart of another method for load balancing between wireless networks according to an embodiment of the present invention;

4 is a flowchart of another method for load balancing between wireless networks according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another terminal according to an embodiment of the present invention; FIG. 7 is a schematic structural diagram of another terminal according to an embodiment of the present invention; FIG. 8 is a schematic structural diagram of a wireless network device according to an embodiment of the present invention; FIG. 9 is a schematic structural diagram of another wireless network device according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another wireless network device according to an embodiment of the present invention.

detailed description

The method, device, and system for load balancing between wireless networks provided by the embodiments of the present invention are described below by way of example with reference to the accompanying drawings.

On the one hand, the embodiment of the present invention firstly illustrates the method provided by the embodiment of the present invention from the perspective of the terminal. It should be noted that the terminal has accessed the first network, as shown in FIG. 1 , the method includes:

101: The terminal receives a handover decision condition sent by a second network. Illustratively, the method provided by the embodiment of the present invention can be applied to load balancing between different wireless network technologies, for example, can be used for load balancing of a WiFi network and a cellular network, and is particularly suitable for a cellular network to control a load of a WiFi network and a cellular network. The equalization, that is, the first network is a WiFi network, and the second network is a cellular network. The following embodiments are described by the cellular network controlling the load balancing of the WiFi network and the cellular network.

The cellular network may send the handover decision condition by means of broadcast or unicast, and the handover decision condition may include but is not limited to the following:

1) switching the decision threshold;

2) the load range of the WiFi network, the load range of the cellular network, and the handover decision threshold;

3) type of business;

4) service type, handover decision threshold;

5) service type, load range of WiFi network, load range of cellular network, handover decision threshold;

6) network information of the WiFi network, handover decision threshold;

7) network information of the WiFi network, the load range of the WiFi network, the load range of the cellular network, and the handover decision threshold;

8) Network information and service type of the WiFi network;

9) network information, service type, and handover decision threshold of the WiFi network;

10) Network information of the WiFi network, service type, load range of the WiFi network, load range of the cellular network, handover decision threshold.

102: generating switching information corresponding to the handover decision condition;

For example, the terminal may generate different handover information according to the type of the handover decision condition received. For details, refer to the following embodiments.

103: Switching from the first network to the second network if the handover information satisfies the handover decision condition. Optionally, the handover decision condition includes: a handover decision threshold; the handover decision threshold is within a preset value range; Step 102 includes: randomly generating a value within the preset value range, The value is used as the switching information.

Exemplarily, the handover decision threshold can be specifically determined based on the current conditions of the cellular network and the WiFi network. For example, the current load of the cell is relatively high, and the handover decision threshold can be set to 0.2, that is, only 20% of the (dormant) terminal is allowed to switch to the cell.

The terminal and the cellular network may pre-agreed the rules for satisfying the handover decision condition. In this case, the rule may be: when the handover information is greater than the handover decision threshold, the handover decision condition is considered to be satisfied; or, when the handover information is less than or equal to the handover decision gate For a limited time, it is considered that the handover decision condition is satisfied. This embodiment of the present invention does not limit this.

Optionally, the handover decision condition includes: a load range of the WiFi network, a load range of the cellular network, and a handover decision threshold; and the handover decision threshold is within a preset value range;

Step 102 includes: acquiring a load condition of the WiFi network and a load condition of the cellular network; a load condition of the WiFi network matches a load range of the WiFi network, and a load condition of the cellular network is In the case that the load range of the cellular network is matched, within the preset value range, a value is randomly generated, and the value is used as the switching information.

Illustratively, the cellular network can determine the load range by detecting the load conditions of the WiFi network and the cellular network, or performance metrics such as the current channel. The load range of the WiFi network and the load range of the cellular network may all be a specific value; or both are an interval; or one of them is a specific value, and the other is an interval.

The load condition can be the number of loads carried by a network, or the load carried by it, the percentage of the rated load, and the like. When the load range is a specific value, the load condition and the load range can be matched as follows: The load condition is greater than the specific value, and the load condition is less than or equal to the specific value; when the load range is an interval, the load condition and the load The range matching can be: The load condition is within the load range, or the load condition is not within the load range. The load condition of the WiFi network matches the load range of the WiFi network, and the load condition of the cellular network matches the load range of the cellular network as follows: the load conditions are all within the corresponding load range; or the load conditions are not within the corresponding load range; or one Within the load range, one is out of the load range.

Exemplarily, the format of the handover decision condition may be, but is not limited to, [the load range of the WiFi network, the load range of the cellular network, the handover decision threshold]. For example, [WiFi network 70%, cellular network 30%, 0.2], [WiFi network 60%~70%, cellular network 30%~40%, 0.3].

Further, the handover decision condition further includes: a service type; the randomly generating a value, and the value is used as the handover information, including:

In the case where the type of the service being accessed by the terminal matches the service type, a value is randomly generated, and the value is used as the switching information.

Illustratively, because different service types have different network performance requirements, for example, video services require a larger bandwidth than web services. Thus, switching to a cellular network can improve the network performance of the WiFi network as compared to switching the terminal accessing the web service to the cellular network. Therefore, the cellular network can transmit the service type, and the type of the service that the terminal is accessing is also used as the handover decision condition to control the handover of the terminal accessing different service types.

If the service type that the terminal is accessing matches the type of the received service, determine whether the above-mentioned handover threshold is met, or whether the corresponding load range and the handover threshold are met, and if yes, switch from the WiFi network to Cellular network.

Optionally, the handover decision condition includes: a service type. Step 102 includes: matching a type of the service that the terminal is accessing with the service type, and using the matching result as the handover information.

Exemplarily, the terminal may switch from the WiFi network to the cellular network if the type of service being accessed matches the type of the received service; When the type of service requested does not match the type of service received, the WiFi network is switched to the cellular network.

Further optionally, the method further includes:

Receiving, by the terminal, network information of the WiFi network that is sent by the cellular network, where the network information of the WiFi network includes: an identifier of a basic service set for the handover decision condition; Step 102 includes: according to the terminal The identifier of the basic service set generates handover information corresponding to the handover decision condition.

Exemplarily, the basic unit of the WiFi network is a Basic Service Set (BSS), and the BSS is composed of several stations (Stations, referred to as STAs), optionally, one of the stations has a certain management function, called It is an Access Point (AP). The AP periodically transmits a beacon frame (Beacon) on a part of the selected one or a part of the working channel, and the Bacon may carry the BSS identification information, where the BSS identification information may be an identity identification number (BSS Identity) , referred to as BSS ID).

The cellular network can control the handover of the one or more BSSs satisfying the handover decision condition to the cellular network. The cellular network can use the identity of the heavily loaded BSS in the WiFi network as the network information of the WiFi network.

A BSS may include multiple terminals, and one terminal belongs to one BSS. One terminal may receive an identifier of a BSS broadcasted by the cellular network side that is not described by the terminal. In this case, the terminal does not switch to the cellular network. When the identifier of the BSS received by a terminal matches the BSS to which it belongs, the handover from the WiFi network to the cellular network is satisfied if the handover decision condition is met.

Further, the terminal is in a dormant state or an active state with respect to the cellular network. Preferably, the terminal is in a dormant state with respect to the cellular network. It should be noted that, for a terminal that is dormant in a cellular network, although the network side cannot control the terminal, the terminal can still receive information transmitted by the cellular network, especially broadcast information.

A method for load balancing between wireless networks according to an embodiment of the present invention, the terminal according to the The handover decision condition sent by the network generates corresponding handover information, and when the handover information satisfies the handover decision condition, the handover is performed from the first network to the second network, which implements load balancing between different wireless networks, and improves network resources. Utilization and total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization is not high, and the total data transmission throughput is low. The above method is exemplified by a specific embodiment below.

See Figure 2, including:

201: The terminal receives the network information of the WiFi network sent by the cellular network side, the service type, the load range of the WiFi network, the load range of the cellular network, the handover decision threshold, and the current state of the terminal; the handover decision threshold is in a preset value range. Inside;

Exemplarily, the handover decision condition received by the terminal is: [BSS1, video service, WiFi network 60%~70%, cellular network 30%~40%, 0.2, sleep state], [BSS2, voice service, WiFi network 60% , cellular network 40%, 0.3]. The basic service set to which the terminal belongs is BSS1, and the service that the terminal is accessing is a video service, and the preset value ranges from 0-1.

202: Determine whether the flag of the basic service set to which the terminal belongs is included;

203: If no, it ends;

204: If yes, determining whether the type of the service that the terminal is accessing matches the service type corresponding to the flag of the basic service set to which the terminal belongs;

205: If no, it ends;

206: If yes, determine whether the current WiFi network load condition matches the load range of the WiFi network, and whether the current cellular network load condition matches the load range of the cellular network;

Exemplarily, the current wireless network network has a load of 65% and the current cellular network has a load of 40%. 207 : If no, it ends;

208: If yes, randomly generate a value within the preset value range; exemplarily, set the generated value to 0.3.

209: determining whether the value is greater than a handover decision threshold;

210 : If no, it ends;

21 1 : If yes, determine whether the current state of the terminal is in a sleep state;

212 : If no, it ends;

213: If yes, switch from the WiFi network to the cellular network.

Illustratively, the order of the above several determining steps may be reversed. In the above exemplary implementation, the terminal switches from a WiFi network to a cellular network.

It should be noted that if the handover decision condition does not include the flag of the basic service set, step 202 may not be performed; if the handover decision condition does not include the service type, step 204 may not be performed; if the handover decision condition does not include the load of the WiFi network The range, the load range of the cellular network may not perform step 206; if the handover decision condition does not include the handover decision threshold, steps 208 and 209 may not be performed; if the handover decision condition does not include the current state of the terminal, step 21 1 may not be performed. .

The method for load balancing between wireless networks provided by the embodiment of the present invention, the terminal generates corresponding handover information according to the handover decision condition sent by the second network, and switches from the first network to the second when the handover information satisfies the handover decision condition. The network implements load balancing between different wireless networks, improving the utilization of network resources and the total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization rate is not high, and the total data transmission throughput is low. On the one hand, the method for balancing the load between the wireless networks provided by the embodiment of the present invention is exemplified from the perspective of the network side. Referring to FIG. 3, the method includes:

301: determining a handover decision condition; Specifically, the handover decision condition may be determined by a preset algorithm in a cellular network device (such as a base station); the handover decision condition may also be configured as an adjustable/configurable item in the cellular network device by the outside world.

Optionally, the handover decision condition may include but is not limited to the following:

1) switching the decision threshold;

3) type of business;

4) service type, handover decision threshold;

6) network information of the WiFi network, handover decision threshold;

8) Network information and service type of the WiFi network;

Exemplarily, the handover decision condition is determined by the second network according to a format of a preset handover condition, an item corresponding to the handover condition, a rule required by each item, and the like. Taking the ninth type of handover decision condition listed above as an example, the handover condition corresponds to: the network information of the WiFi network, the service type, and the handover decision threshold. The conditions for the handover decision threshold may include: a preset value. Range, etc.

302: The second network broadcasts the handover decision condition, so that the terminal generates handover information corresponding to the handover decision condition, and switches from the first network to the handover if the handover information satisfies the handover decision condition Said second network.

Illustratively, the terminal is already connected to the first network. Optionally, the first network is A WiFi network, the second network is a cellular network.

Further, the method further includes:

Broadcasting the network information of the WiFi network determined by the cellular network, so that the terminal generates handover information corresponding to the handover decision condition according to the identifier of the basic service set to which the terminal belongs;

Exemplarily, the cellular network determines network information of the WiFi network according to the load condition of each BS S in the current WiFi network, that is, the method further includes: acquiring a load situation in the basic service set; according to the load in the basic service set The case determines the handover decision threshold. Specifically, the identifier of the heavily loaded BS S is used as the network information of the WiFi network.

For example, the related content of the embodiment of the present invention can be referred to the foregoing embodiment, and details are not described herein again.

The method for load balancing between wireless networks provided by the embodiment of the present invention, the terminal generates corresponding handover information according to the handover decision condition sent by the second network, and switches from the first network to the second when the handover information satisfies the handover decision condition. The network implements load balancing between different wireless networks, improving the utilization of network resources and the total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization rate is not high, and the total data transmission throughput is low. In one aspect, the embodiment of the present invention further provides a method for load balancing between wireless networks. Referring to FIG. 4, the method includes:

401: The second network determines a handover decision condition;

402: The second network broadcasts the handover decision condition;

403: The terminal receives the handover decision condition; the terminal has accessed the first network; 404: The terminal generates handover information corresponding to the handover decision condition. 405: The terminal switches from the first network to the second network if the handover information satisfies the handover decision condition.

For details of the embodiment, refer to the foregoing embodiments, and details are not described herein again. The method for load balancing between wireless networks provided by the embodiment of the present invention, the terminal generates corresponding handover information according to the handover decision condition sent by the second network, and switches from the first network to the second when the handover information satisfies the handover decision condition. The network implements load balancing between different wireless networks, improving the utilization of network resources and the total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization rate is not high, and the total data transmission throughput is low. On the other hand, referring to FIG. 5, a terminal 50 is provided for performing the method for load balancing between wireless networks shown in FIG. 1 or FIG. 2, where the terminal 50 has accessed the first network. The terminal 50 includes: a receiving unit 501, a generating unit 502, and a switching unit 503, where

The receiving unit 501 is configured to receive a handover decision condition sent by the second network, where the generating unit 502 is configured to generate handover information corresponding to the handover decision condition transmitted by the receiving unit 501.

The switching unit 503 is configured to switch from the first network to the second network if the handover information transmitted by the generating unit 502 satisfies the handover decision condition transmitted by the receiving unit 501.

Further, the first network is a WiFi network, and the second network is a cellular network.

Optionally, the handover decision condition includes: a handover decision threshold; the handover decision threshold is within a preset value range;

The generating unit 502 is specifically configured to: randomly, within the preset value range Generate a value that is used as the switch information.

Referring to FIG. 6, the generating unit 502 includes:

The obtaining module 5021 is configured to acquire a load condition of the WiFi network and a load condition of the cellular network.

a generating module 5022, configured to: when the load condition of the WiFi network matches the load range of the WiFi network, and the load condition of the cellular network matches the load range of the cellular network, in the preset Within the range of values, a value is randomly generated and used as the switching information.

Further, the handover decision condition further includes: a service type; the generating unit 502 is specifically configured to: when the type of the service being accessed by the terminal matches the service type, randomly generate a value, This value is used as the switching information.

Optionally, the handover decision condition includes: a service type;

The generating unit 502 is specifically configured to match the type of the service that the terminal is accessing with the service type, and use the matching result as the switching information.

Further, the receiving unit 501 is further configured to: receive network information of the WiFi network that is sent by the cellular network, where the network information of the WiFi network includes: an identifier of a basic service set for the handover decision condition;

The generating unit 502 is specifically configured to generate, according to the identifier of the basic service set to which the terminal belongs, handover information corresponding to the handover decision condition.

Optionally, the terminal is a terminal that is in a dormant state in the cellular network. According to the embodiment of the present invention, the terminal generates corresponding handover information according to the handover decision condition sent by the second network, and switches from the first network to the second network to achieve different conditions when the handover information satisfies the handover decision condition. Negative between wireless networks Load balancing improves the utilization of network resources and the total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization is not high, and the total data transmission throughput is low.

In addition, an embodiment of the present invention further provides a terminal 50, which is shown in FIG. 7, and includes: a receiver 701, a memory 702, and a processor 703.

The receiver 701 is configured to receive a handover decision condition sent by the second network, where the memory 702 is configured to store a group of codes, where the code is used to control the processor 703 to perform the following actions: generating and the handover decision Switching information corresponding to the condition; switching from the first network to the second network if the switching information satisfies the handover decision condition. In one aspect, referring to FIG. 8, a method for performing load balancing between wireless networks shown in FIG. 3 is provided by a wireless network device 80 according to an embodiment of the present invention, where the wireless network device 80 belongs to a second network, The wireless network device 80 includes: a determining unit 801 and a broadcasting unit 802, where

The determining unit 801 is configured to determine a handover decision condition;

The broadcast unit 802 is configured to broadcast the handover decision condition transmitted by the determining unit 801, so that the terminal generates handover information corresponding to the handover decision condition, and if the handover information satisfies the handover decision condition In the case, switching from the first network to the second network.

Optionally, the first network is a WiFi network, and the second network is a cellular network.

Further, the determining unit 801 is further configured to: determine network information of the WiFi network, where the network information of the WiFi network includes: an identifier of a basic service set of the WiFi network;

The broadcast unit 802 is further configured to: broadcast network information of the WiFi network, so that the terminal generates and coordinates according to an identifier of a basic service set to which the terminal belongs. Decoding information corresponding to the handover decision condition;

Optionally, the handover decision condition includes: a handover decision threshold and/or a service type.

Optionally, the handover decision condition includes: a handover decision threshold, a load range of the WiFi network, and a load range of the cellular network;

Further, referring to FIG. 9, the wireless network device 70 further includes:

The obtaining unit 803 is configured to obtain a load situation in the basic service set. The determining unit 801 is further configured to determine the handover decision threshold according to a load situation in the basic service set.

Optionally, the terminal is a terminal that is in a dormant state in the cellular network. Illustratively, in a cellular network, the wireless network device 80 can be a base station; in a WiFi network, the wireless network device 80 can be an access point.

The wireless network device provided by the embodiment of the present invention, the wireless network device belongs to the second network, and the wireless network device determines and sends a handover decision condition to the terminal, so that the terminal generates corresponding handover information according to the handover decision condition, where the handover information satisfies the handover decision. In the case of conditions, switching from the first network to the second network implements load balancing between different wireless networks, improving utilization of network resources and total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization is not high, and the total data transmission throughput is low.

In addition, an embodiment of the present invention further provides a wireless network device 80. Referring to FIG. 10, the method includes: a memory 1001, a processor 1002, where the memory 1001 is configured to store a group of codes, where the code is used to control the The processor 1002 performs the following actions: determining a handover decision condition; broadcasting the handover decision condition, so that the terminal generates handover information corresponding to the handover decision condition, and the handover information satisfies In the case of the handover decision condition, the first network is switched to the second network. In an aspect, the embodiment of the present invention further provides a system for load balancing between wireless networks, including: a first network, a second network, and any terminal provided by the foregoing embodiment.

50. The terminal 50 has access to the first network, and the second network includes any one of the wireless network devices 80 provided by the foregoing embodiment.

The system for load balancing between wireless networks according to the embodiment of the present invention, the terminal generates corresponding handover information according to the handover decision condition sent by the second network, and switches from the first network to the second when the handover information satisfies the handover decision condition. The network implements load balancing between different wireless networks, improving the utilization of network resources and the total throughput of data transmission. In the prior art, the terminal preferentially selects a network, and the load of the network is too large, so that the network resource utilization rate is not high, and the total data transmission throughput is low. It will be apparent to those skilled in the art that, for the convenience and simplicity of the description, the specific operation of the system, the device and the unit described above may be referred to the corresponding processes in the foregoing method embodiments, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, ie It can be located in one place, or it can be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional units described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or an optical disk, and the like, which can store program codes. Medium.

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 are modified, or some of the technical features are replaced by equivalents; and the modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

claims

1. A method of load balancing between wireless networks, characterized in that the terminal has accessed the first network, and the method includes:

The terminal receives the handover decision condition sent by the second network;

Generate handover information corresponding to the handover decision condition;

When the switching information satisfies the switching decision condition, switch from the first network to the second network.

2. The method according to claim 1, characterized in that,

The first network is a wireless fidelity WiFi network, and the second network is a cellular network.

3. The method according to claim 1 or 2, characterized in that,

The handover decision conditions include: a handover decision threshold; the handover decision threshold is within a preset value range;

The generating of switching information corresponding to the switching decision condition includes: randomly generating a value within the preset value range, and using this value as the switching information.

4. The method according to claim 2, characterized in that,

The handover decision conditions include: the load range of the WiFi network, the load range of the cellular network, and a handover decision threshold; the handover decision threshold is within a preset value range;

The generating of handover information corresponding to the handover decision condition includes:

Obtain the load condition of the WiFi network and the load condition of the cellular network; when the load condition of the WiFi network matches the load range of the WiFi network, and the load condition of the cellular network matches the load of the cellular network In the case of range matching, a value is randomly generated within the preset value range, and this value is used as the switching information.

5. The method according to claim 3 or 4, characterized in that,

The handover decision conditions also include: service type;

The randomly generated value is used as the switching information, including: When the type of service being accessed by the terminal matches the service type, a value is randomly generated and used as the switching information.

6. The method according to claim 1, characterized in that,

The handover decision conditions include: service type;

Match the type of service being accessed by the terminal with the service type, and use the matching result as switching information.

7. The method according to any one of claims 2-6, characterized in that the method further includes:

The terminal receives the network information of the WiFi network sent by the cellular network, and the network information of the WiFi network includes: an identifier of the basic service set for which the handover decision condition is targeted;

Handover information corresponding to the handover decision condition is generated according to the identification of the basic service set to which the terminal belongs.

8. The method according to any one of claims 2 to 7, characterized in that the terminal is a terminal in a dormant state in the cellular network.

9. A method of load balancing between wireless networks, characterized in that the method includes:

Determine the switching judgment conditions;

The second network broadcasts the handover decision condition, so that the terminal generates handover information corresponding to the handover decision condition, and switches from the first network to the third network when the handover information satisfies the handover decision condition. Two networks.

10. The method according to claim 9, characterized in that,

The first network is a WiFi network, and the second network is a cellular network.

1 1. The method according to claim 10, characterized in that, the method further includes: The cellular network determines the network information of the WiFi network, and the network information of the WiFi network includes: an identification of the basic service set of the WiFi network;

The network information of the WiFi network determined by the cellular network is broadcast, so that the terminal generates switching information corresponding to the switching decision condition according to the identification of the basic service set to which the terminal belongs.

12. The method according to any one of claims 9-11, characterized in that the handover decision conditions include: handover decision threshold and/or service type.

13. The method according to claim 9 or 10, characterized in that,

The handover decision conditions include: a handover decision threshold, the load range of the WiFi network and the load range of the cellular network;

Alternatively, the handover decision conditions include: handover decision threshold, service type, load range of the WiFi network and load range of the cellular network.

14. The method according to claim 12, characterized in that the method further includes:

Obtain the load status of the basic service set;

The handover decision threshold is determined according to the load condition in the basic service set.

15. The method according to any one of claims 9 to 14, characterized in that the terminal is a terminal in a dormant state in the cellular network.

16. A terminal, characterized in that the terminal has accessed the first network, and the terminal includes: a receiving unit, a generating unit and a switching unit, wherein,

The receiving unit is used to receive the switching decision condition sent by the second network; the generating unit is used to generate switching information corresponding to the switching decision condition transmitted by the receiving unit;

The switching unit is configured to switch from the first network to the second network when the switching information transmitted by the generating unit satisfies the switching decision condition transmitted by the receiving unit.

17. The terminal according to claim 16, characterized in that, The first network is a WiFi network, and the second network is a cellular network.

18. The terminal according to claim 16 or 17, characterized in that,

The generating unit is specifically configured to randomly generate a value within the preset value range and use this value as switching information.

19. The terminal according to claim 17, characterized in that,

The generating unit includes:

An acquisition module, used to obtain the load condition of the WiFi network and the load condition of the cellular network;

Generating module, configured to, when the load condition of the WiFi network matches the load range of the WiFi network, and the load condition of the cellular network matches the load range of the cellular network, in the preset Within the value range, a value is randomly generated and used as switching information.

20. The terminal according to claim 18 or 19, characterized in that,

The handover decision conditions also include: service type;

The generating unit is specifically configured to, when the type of service being accessed by the terminal matches the service type, randomly generate a value and use the value as the switching information.

21. The terminal according to claim 16, characterized in that,

The handover decision conditions include: service type;

The generating unit is specifically configured to match the type of service being accessed by the terminal with the service type, and use the matching result as switching information.

22. The terminal according to any one of claims 17 to 21, characterized in that the receiving unit is further configured to receive the WiFi network sent by the cellular network. The network information of the WiFi network includes: the identification of the basic service set for which the handover decision condition is targeted;

The generating unit is specifically configured to generate switching information corresponding to the switching decision condition according to the identification of the basic service set to which the terminal belongs.

23. The terminal according to any one of claims 17 to 22, characterized in that the terminal is a terminal in a dormant state in the cellular network.

24. A wireless network device, the wireless network device belongs to the second network, characterized in that the wireless network device includes: a determining unit and a broadcast unit, wherein,

The determining unit is used to determine switching decision conditions;

The broadcast unit is configured to broadcast the handover decision condition transmitted by the determination unit, so that the terminal generates handover information corresponding to the handover decision condition, and when the handover information satisfies the handover decision condition , switching from the first network to the second network.

25. The wireless network device according to claim 24, wherein the first network is a WiFi network, and the second network is a cellular network.

26. The wireless network device according to claim 25, wherein the determining unit is further configured to determine network information of the WiFi network, and the network information of the WiFi network includes: basic services of the WiFi network The identifier of the set; the broadcast unit is further configured to broadcast the network information of the WiFi network, so that the terminal generates switching information corresponding to the switching decision condition according to the identifier of the basic service set to which the terminal belongs.

27. The wireless network device according to any one of claims 24-26, characterized in that,

The handover decision conditions include: handover decision threshold and/or service type.

28. The wireless network device according to claim 26 or 27, characterized in that the handover decision condition includes: a handover decision threshold, the load range of the WiFi network and the load range of the cellular network; Or, the handover decision conditions include: handover decision threshold, service type, the

The load range of the WiFi network and the load range of the cellular network.

29. The wireless network device according to claim 27, wherein the wireless network device further includes:

An acquisition unit, used to acquire the load status of the basic service set;

The determining unit is also configured to determine the handover decision threshold according to the load condition in the basic service set.

30. The wireless network device according to any one of claims 24-29, characterized in that,

The terminal is a terminal in a dormant state in the cellular network.

3 1. A system for load balancing between wireless networks, characterized in that it includes: a first network, a second network, and a terminal according to any one of claims 16 to 23, wherein the terminal has access to all The first network, the second network includes the wireless network device according to any one of claims 24-30.