CN104080153A

CN104080153A - Access point selection method, user equipment and system

Info

Publication number: CN104080153A
Application number: CN201310108637.8A
Authority: CN
Inventors: 于游洋; 郑磊斌; 夏大治
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2014-10-01

Abstract

The invention relates to an access point selection method, user equipment and a system. The access point selection method comprises the steps that an access strategy sent by a server is received, wherein the access strategy comprises network state parameters; at least one candidate access point is determined according to the access strategy; at least one of the candidate access points is determined as the target access point, wherein the network state value of the target access point accords with the network state parameters.

Description

Access point system of selection, subscriber equipment and system

Technical field

The present invention relates to communication technical field, relate in particular to a kind of access point system of selection, subscriber equipment and system.

Background technology

At present, third generation partner program (The3rd Generation Partnership Project, 3GPP) core network is not only supported 3GPP access technology, supports non-3GPP access technology simultaneously.Especially for the subscriber equipment of supporting multiple access technology, network side can be by access network discovery and selection function (Access Network Discovery and Selection Function, ANDSF) access strategy that server sends user's granularity is to subscriber equipment, thereby guides user equipment is selected suitable access point.

In prior art, the access strategy that ANDSF server sends to subscriber equipment comprises Access Network mark and corresponding priority orders thereof.Subscriber equipment can only select the access point under Access Network that priority is the highest to access based on the priority orders of Access Network.And in actual application, the network state of access point can change at any time, as in the network state variation of the higher access point of section priority sometime, subscriber equipment should not access this access point.

But due to prior art restriction, in the time of the network state variation of the high access point of priority, subscriber equipment still can select this access point to access according to existing access strategy, thereby affects network result of use, causes user to experience decline.

Summary of the invention

In view of this, the invention provides a kind of access point system of selection, subscriber equipment and system, make user to select the access point of network state the best to access according to the network state of current access point, experience thereby improve user.

In first aspect, the invention provides a kind of access point system of selection, the method comprises:

The access strategy that reception server sends, described access strategy comprises network state parameter;

Determine at least one candidate's access point according to described access strategy;

Determine that in described at least one candidate's access point one is as target access, the network state value of described target access meets described network state parameter.

In the first mode in the cards of first aspect, described network state parameter comprises at least one in peak load threshold value, weak signal threshold value, minimum broadband threshold value and access network type, and described network state value comprises at least one in load value, signal strength signal intensity, bandwidth value and access network type.

In conjunction with the first mode in the cards of first aspect, in the second mode in the cards, the network state value of described target access meets described network state parameter, comprises following at least one situation: the load value of described target access is not more than described peak load threshold value; Or, weak signal threshold value described in the signal of described target access is greater than; Or the bandwidth value of described target access is greater than described minimum bandwidth threshold value; Or the network type of described target access conforms to described access network type.

In conjunction with the first mode in the cards of first aspect or the second mode in the cards of first aspect, in the third mode in the cards, described access strategy also comprises selects instruction, one in described definite described at least one candidate's access point as target access, comprise: according to described selection instruction, one described in determining at least one candidate's access point as described target access.

In conjunction with the third mode in the cards of first aspect, in the 4th kind of mode in the cards, described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or, described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that load is minimum as described target access; Or, described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or, described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects the access point of bandwidth maximum as described target access candidate's access point of weak signal threshold value described in being greater than.

In conjunction with the third mode in the cards of the first mode in the cards of first aspect or the second mode in the cards of first aspect or first aspect or the 4th kind of mode in the cards of first aspect, in the 5th kind of mode in the cards, described network state parameter is applied to access network discovery information in described access strategy, routing rule node, preferred at least one in access node.

In conjunction with the 5th kind of mode in the cards of first aspect, in the 6th kind of mode in the cards, in described access strategy, also comprise: Access Network mark, described Access Network mark is used or is shared by multiple access points by an access point; Describedly determine at least one candidate's access point according to described access strategy, comprising: determine described at least one candidate's access point according to described Access Network mark.

In conjunction with the third mode in the cards of the first mode in the cards of first aspect or the second mode in the cards of first aspect or first aspect or the 4th kind of mode in the cards of first aspect, in the 7th kind of mode in the cards, described network state parameter is applied to the upper layer node of routing rule node, preferably access node or access network discovery information in described access strategy.

In conjunction with the 7th kind of mode in the cards of first aspect, in the 8th kind of mode in the cards, described at least one candidate's access point is any at least one access point.

In second aspect, the invention provides a kind of subscriber equipment, this subscriber equipment comprises:

Receiving element, the access strategy sending for reception server, described access strategy comprises network state parameter;

The first determining unit, for determining at least one candidate's access point according to described access strategy;

The second determining unit, for determining that of described at least one candidate's access point is as target access, the network state value of described target access meets described network state parameter.

In the first mode in the cards of second aspect, described network state parameter comprises at least one in peak load threshold value, weak signal threshold value, minimum broadband threshold value and access network type, and described network state value comprises at least one in load value, signal strength signal intensity, bandwidth value and access network type.

In conjunction with the first mode in the cards of second aspect, in the second mode in the cards, the network state value of described target access meets described network state parameter, comprises following at least one situation: the load value of described target access is not more than described peak load threshold value; Or, weak signal threshold value described in the signal of described target access is greater than; Or the bandwidth value of described target access is greater than described minimum bandwidth threshold value; Or the network type of described target access conforms to described access network type.

In conjunction with the first mode in the cards of second aspect or the second mode in the cards of second aspect, in the third mode in the cards, described access strategy also comprises selects instruction, described the second determining unit specifically for: according to described selection instruction, determine that in described at least one candidate's access point one is as described target access.

In conjunction with the third mode in the cards of second aspect, in the 4th kind of mode in the cards, described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or, described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that load is minimum as described target access; Or, described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or, described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects the access point of bandwidth maximum as described target access candidate's access point of weak signal threshold value described in being greater than.

In conjunction with the third mode in the cards of the first mode in the cards of second aspect or the second mode in the cards of second aspect or second aspect or the 4th kind of mode in the cards of second aspect, in the 5th kind of mode in the cards, described network state parameter is applied to access network discovery information in described access strategy, routing rule node, preferred at least one in access node.

In conjunction with the 5th kind of mode in the cards of second aspect, in the 6th kind of mode in the cards, in described access strategy, also comprise: Access Network mark, described Access Network mark is used or is shared by multiple access points by an access point; Described the first determining unit specifically for: determine described at least one candidate's access point according to described Access Network mark.

In conjunction with the third mode in the cards of the first mode in the cards of second aspect or the second mode in the cards of second aspect or second aspect or the 4th kind of mode in the cards of second aspect, in the 7th kind of mode in the cards, described network state parameter is applied to the upper layer node of routing rule node, preferably access node or access network discovery information in described access strategy.

In conjunction with the 7th kind of mode in the cards of second aspect, in the 8th kind of mode in the cards, described at least one candidate's access point is any at least one access point.

In the third aspect, the invention provides a kind of access point selective system, this access point selective system comprises: arbitrary described subscriber equipment in server and second aspect; Described server is for sending access strategy to the arbitrary described subscriber equipment of claim 10-18.

Pass through such scheme, the access strategy that comprises network state parameter that subscriber equipment reception server sends, first subscriber equipment determines candidate's access point according to access strategy, then from candidate's access point, select candidate's access point that network state value meets network state parameter as target access, thereby select the access point of current network state the best to access, improve network result of use.

Brief description of the drawings

The flow chart of a kind of access point system of selection that Fig. 1 provides for the embodiment of the present invention one;

Fig. 2 is the structural representation of the first access strategy provided by the invention;

Fig. 3 is the structural representation of the second access strategy provided by the invention;

Fig. 4 is the structural representation of the third access strategy provided by the invention;

Fig. 5 is the structural representation of the 4th kind of access strategy provided by the invention;

The structural representation of a kind of subscriber equipment that Fig. 6 provides for the embodiment of the present invention three;

The structural representation of a kind of subscriber equipment that Fig. 7 provides for the embodiment of the present invention four.

Embodiment

In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.

Describe a kind of access point system of selection of providing of the embodiment of the present invention one below in detail as an example of Fig. 1 example, the flow chart of a kind of access point system of selection that Fig. 1 provides for the embodiment of the present invention one.The executive agent of this access point system of selection is subscriber equipment.As shown in Figure 1, this access point system of selection comprises the following steps:

Step S101, the access strategy that reception server sends, this access strategy comprises network state parameter.

Wherein, server can be ANDSF server.Network state parameter can comprise any one or the combination arbitrarily in peak load threshold value, weak signal threshold value, minimum broadband threshold value, access network type.

Alternatively, network state parameter is applied at least one in routing rule (Routing Rule) node, preferably access (Prioritized Access) node and the access network discovery information in described access strategy, because each routing rule node, preferably access node and access network discovery information also comprise Access Network mark, this Access Network mark can be specially service set (Service Set Identifier, SSID).Therefore, the network state parameter that each routing rule node, preferably access node and access network discovery information comprise is different, i.e. different routing rule nodes, preferably access node and the network state parameter that comprises under access network discovery information corresponding different Access Network mark respectively.

Alternatively, network state parameter is applied to the upper layer node of routing rule node, preferably access node and access network discovery information, in whole access strategy, only includes network state parameter, and this network state parameter is applicable to all access points.Therefore, in this access strategy, do not need to comprise Access Network mark, access strategy can be simplified.

Step S102, determines at least one candidate's access point according to access strategy.

In the time that access strategy comprises Access Network mark, the access point of this Access Network mark of this use is defined as to candidate's access point.It should be noted that, Access Network mark can be used by an access point, also can be used by multiple access points simultaneously.

In the time not comprising Access Network mark in access strategy, any access point is defined as to candidate's access point.

Step S103, determines that at least one candidate's access point one is as target access, and the network state value of this target access meets network state parameter.

Wherein, network state value comprises at least one in load value, signal strength signal intensity, bandwidth value and access network type.

Alternatively, when this network state parameter comprises any one in peak load threshold value, weak signal threshold value, minimum broadband threshold value, access network type or combination arbitrarily, all parameters that subscriber equipment comprises the network state value of candidate's access point and network state parameter compare, and judge whether the network state value of this candidate's access point meets network state parameter; If the network state value of this candidate's access point meets network state parameter, determine that this candidate's access point is accessible, using this candidate's access point as target access to access.

Concrete, based on the priority of access point, subscriber equipment preferentially judges the high candidate's access point of priority.As, network state parameter corresponding to candidate's access point that priority is high is weak signal threshold value, minimum broadband threshold value and access network type, by signal strength signal intensity current candidate's access point the highest this priority, bandwidth and network type compare with weak signal threshold value, minimum broadband threshold value and access network type respectively, if the signal strength signal intensity of this candidate's access point is greater than weak signal threshold value and band is wider than minimum broadband threshold value and network type conforms to access network type, determine that this candidate's access point is target access.If wherein any one network state value does not meet corresponding parameter, determine that this candidate's access point can not access as target access, need so priority time high candidate's access point to judge, until determine target access.

Alternatively, when this network state parameter comprises multiple parameter, each parameter can identify in a corresponding selection, selects mark to can be essential mark or optional mark.While determining target access, only need to judge whether network state value meets corresponding selection in multiple parameters and be designated the parameter of essential mark.

Alternatively, in access strategy, can also comprise and select instruction.Subscriber equipment is confirmed target access according to this selection instruction from multiple candidate's access points.

Concrete, when network state parameter comprises peak load threshold value and weak signal threshold value, and select instruction while being used to indicate preferential judgement signal, subscriber equipment is not more than and candidate's access point that peak load threshold value and signal strength signal intensity be greater than weak signal threshold value, selects access point that signal strength signal intensity is the strongest as target access from load value; When network state parameter comprises peak load threshold value and weak signal threshold value, and while selecting instruction to be used to indicate preferential judgement load, subscriber equipment is not more than and candidate's access point that peak load threshold value and signal strength signal intensity be greater than weak signal threshold value, selects access point that load is minimum as target access from load value; When network state parameter comprises minimum broadband threshold value and weak signal threshold value, and select instruction while being used to indicate preferential judgement signal, subscriber equipment is greater than and candidate's access point that minimum bandwidth threshold value and signal strength signal intensity be greater than weak signal threshold value, selects access point that signal strength signal intensity is the strongest as target access from bandwidth value; When network state parameter comprises minimum broadband threshold value and weak signal threshold value, and select instruction while being used to indicate preferential judgement bandwidth, subscriber equipment is greater than candidate's access point that minimum bandwidth threshold value and signal strength signal intensity be greater than weak signal threshold value and selects the access point of bandwidth maximum as target access from bandwidth value.

The access point system of selection that utilizes the embodiment of the present invention one to provide, the access strategy that comprises network state parameter that subscriber equipment reception server sends, first subscriber equipment determines candidate's access point according to access strategy, then from candidate's access point, select candidate's access point that network state value meets network state parameter as target access, thereby select the access point of current network state the best to access, improve network result of use.

A kind of access point system of selection is provided in the embodiment of the present invention two.The executive agent of this access point system of selection is server, can be specially ANDSF server.This access point system of selection comprises the following steps:

The access strategy sending to subscriber equipment, this access strategy comprises network state parameter, first determines candidate's access point according to access strategy in order to subscriber equipment, according to network state parameter select target access point from candidate's access point.

Alternatively, network state parameter is applied at least one in routing rule node, preferably access node and the access network discovery information in access strategy, because each routing rule node, preferably access node and access network discovery information also comprise Access Network mark, this Access Network mark can be specially SSID.Therefore, the network state parameter that each routing rule node, preferably access node and access network discovery information comprise is different, i.e. different routing rule nodes, preferably access node and the network state parameter that comprises under access network discovery information corresponding different Access Network mark respectively.

In the time that access strategy comprises Access Network mark, subscriber equipment need to be determined candidate's access point according to Access Network mark.It should be noted that, Access Network mark can be used by an access point, also can be used by multiple access points simultaneously.

Alternatively, network state parameter is applied to the upper layer node of routing rule node, preferably access node and access network discovery information, in whole access strategy, only includes a group network state parameter, and this network state parameter is corresponding to all access points.Therefore, in this access strategy, do not need to comprise Access Network mark, access strategy can be simplified.Subscriber equipment, in the time receiving the access strategy that does not comprise Access Network mark, can be defined as candidate's access point by any access point.

This network state parameter can comprise any one or the combination arbitrarily in peak load threshold value, weak signal threshold value, minimum broadband threshold value, access network type, the definite target access of subscriber equipment, must meet following situation: the load value of target access is not more than peak load threshold value; And/or the signal of target access is greater than weak signal threshold value; And/or the bandwidth value of target access is greater than minimum bandwidth threshold value; And/or the network type of target access conforms to access network type.

Alternatively, in access strategy, can also comprise and select instruction, so that subscriber equipment is confirmed target access according to this selection instruction from multiple candidate's access points.

The access point system of selection that utilizes the embodiment of the present invention two to provide, server sends the access strategy that comprises network state parameter to subscriber equipment, thereby make subscriber equipment first determine candidate's access point according to access strategy, then from candidate's access point, select candidate's access point that network state value meets network state parameter as target access, thereby select the access point of current network state the best to access, improve network result of use.

Below network state parameter is comprised to any one or the combination arbitrarily in peak load threshold value, weak signal threshold value, minimum broadband threshold value, access network type, and the routing rule node that is applied to access strategy is that example describes.

Concrete access strategy as shown in Figure 2.Under routing rule node, increase by four new nodes (can for leaf node), i.e. peak load threshold value node, weak signal threshold value node, minimum broadband threshold value node, access network type node.

Wherein, Access Network mark is used for making subscriber equipment to determine candidate's access point according to Access Network mark.

Peak load threshold value node comprises peak load threshold value, and this peak load threshold value may be defined as argument of type integer, and span can be 0 to 255.If this peak load threshold value node equipment for indicating user access point load value or load percentage, lower than peak load threshold value, determine that this access point is target access.

Alternatively, peak load threshold value node also can comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, peak load threshold value node is optional node; When selecting to be designated 1(or 0) time, peak load threshold value node is essential node.During in the time that this peak load threshold value node does not occur or for optional node, show that subscriber equipment can not consider access point load condition.

Weak signal strength threshold value node comprises weak signal strength threshold value, and this weak signal strength threshold value may be defined as argument of type integer.If this node equipment for indicating user access point signals intensity is greater than weak signal strength threshold value, determine that this access point is target access.

Alternatively, weak signal threshold value node can also comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, weak signal threshold value node is optional node; When selecting to be designated 1(or 0) time, weak signal threshold value node is essential node.During in the time that this weak signal threshold value node does not occur or for optional node, show that subscriber equipment can not consider the strong and weak situation of access point signals.

Minimum bandwidth threshold value node comprises minimum upstream bandwidth threshold value and minimum downlink bandwidth threshold value, and minimum upstream bandwidth threshold value and minimum downlink bandwidth threshold value can adopt respectively two nodes (as leaf node) to represent.This minimum upstream bandwidth threshold value and minimum downlink bandwidth threshold value may be defined as argument of type integer.If this minimum bandwidth threshold value node equipment for indicating user access point upstream bandwidth is greater than minimum upstream bandwidth threshold value and downlink bandwidth is greater than minimum downlink bandwidth threshold value, determine that this access point is target access.

Alternatively, minimum bandwidth threshold value node can comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, minimum bandwidth threshold value node is optional node; When selecting to be designated 1(or 0) time, minimum bandwidth threshold value node is essential node.During in the time that this minimum bandwidth threshold value node does not occur or for optional node, show that subscriber equipment can not consider access point bandwidth situation.

Access network type node comprises access network type (Access Network type), and this access network type may be defined as argument of type integer or character type parameter or enumeration type parameter etc.Can selected value can comprising as free public network of access network type, privately owned accessible net or charging public network etc.In addition, this access network type can be place type (Venue type), therefore can selected value can comprise as stadium hospital, school or airport etc.If the network type of this access network type node equipment for indicating user access point conforms to access network type, determine that this access point is target access.

Alternatively, access network type node can comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, access network type node is optional node; When selecting to be designated 1(or 0) time, access network type node is essential node.During in the time that this access network type node does not occur or for optional node, show that subscriber equipment can not consider the network type of access point.

Subscriber equipment is receiving after the access strategy shown in Fig. 2, first subscriber equipment determines candidate's access point according to Access Network mark, then the priority based on candidate's access point, from candidate's access point, select the access point that priority is the highest, judge whether the current network state value of this candidate's access point meets newly-increased node.If the current network state value of this target access meets newly-increased node, determine that this candidate's access point is accessible, this candidate's access point is defined as target access by subscriber equipment.If the current network state value of this candidate's access point does not meet newly-increased node, select priority time other high candidate's access points to repeat aforesaid operations, until determine target access.

It is as follows that subscriber equipment judges whether the network state value of candidate's access point meets the process of newly-increased node:

If when having peak load threshold value node under routing rule node and being essential node, subscriber equipment obtains the current load value of this candidate's access point, judges whether the current load value of this candidate's access point is less than peak load threshold value.If the current load value of this candidate's access point is less than peak load threshold value, this candidate's access point is accessible, and this candidate's access point is defined as to target access.Otherwise this target access is not accessible, this candidate's access point can not be defined as to target access.

If when having the most weak threshold value node of signal under routing rule node and being essential node, subscriber equipment obtains the current signal strength signal intensity of this candidate's access point, judges whether this candidate's access point current demand signal intensity is greater than the most weak threshold value of signal.If this candidate's access point current demand signal intensity is greater than the most weak threshold value of signal, this candidate's access point is accessible, and this candidate's access point is defined as to target access.Otherwise this target access is not accessible, this candidate's access point can not be defined as to target access.

If when having minimum broadband threshold value node under routing rule node and being essential node, subscriber equipment obtains the current uplink bandwidth value of this candidate's access point and downlink bandwidth value, judge whether the current uplink bandwidth value of this candidate's access point is greater than minimum bandwidth threshold value, and judge whether downlink bandwidth is greater than minimum downlink bandwidth threshold value.If the current uplink bandwidth value of this candidate's access point is greater than minimum bandwidth threshold value, and descending band is greater than minimum downlink bandwidth threshold value, and this candidate's access point is accessible, and this candidate's access point is defined as to target access.Otherwise this target access is not accessible, this candidate's access point can not be defined as to target access.

If when having access network type node under routing rule node and being essential node, subscriber equipment obtains the network type of this candidate's access point, judge whether the network type of this candidate's access point conforms to the access network type of access strategy instruction.If the network type of this candidate's access point conforms to the access network type of access strategy instruction, this candidate's access point is accessible, and this candidate's access point is defined as to target access.Otherwise this target access is not accessible, this candidate's access point can not be defined as to target access.

If when having multiple newly-increased nodes under routing rule node and being essential node, whether the network state value that need to simultaneously judge candidate's access point meets multiple newly-increased nodes, in the time meeting multiple newly-increased node simultaneously, determine that this candidate's access point is accessible, this candidate's access point is defined as to target access.Otherwise this target access is not accessible, this candidate's access point can not be defined as to target access.

It should be noted that, under preferably access node or access network discovery information, newly-increased node is with to increase by four new nodes under routing rule node identical, and subscriber equipment is receiving after the access strategy that comprises above-mentioned preferred access node or access network discovery information, the process of determining target access with receive the access strategy that comprises above-mentioned routing rule node after identical, in this not go into detail.

In this example network state parameter is increased in the middle of access strategy, an Access Network identifies a corresponding group network state parameter, subscriber equipment is being received after this access strategy, the network state value current in conjunction with candidate's access point judges respectively candidate's access point, thus the access point of definite network state the best.

Below network state parameter is comprised to any one or the combination in any in peak load threshold value, weak signal threshold value, minimum broadband threshold value, access network type, and be applied to the routing rule node of access strategy or preferably the upper layer node of access node or access network discovery information be that example describes.

Concrete access strategy as shown in Figure 3.At routing rule node or preferably increase by four new nodes under the upper layer node of access node or access network discovery information, i.e. peak load threshold value node, weak signal threshold value node, minimum broadband threshold value node, access network type node.

Wherein, peak load threshold value node, weak signal threshold value node, minimum broadband threshold value node, access network type node definition and the peak load threshold value node of the access strategy shown in Fig. 2, weak signal threshold value node, minimum broadband threshold value node, access network type node definition are identical, do not repeat them here.

Subscriber equipment is receiving after the access strategy shown in Fig. 3, first subscriber equipment can be defined as candidate's access point by any access point, then the priority based on candidate's access point, from candidate's access point, select the access point that priority is the highest, judge whether the current network state value of this candidate's access point meets newly-increased node.If the current network state value of this candidate's access point meets newly-increased node, this candidate's access point is accessible, and this candidate's access point is defined as to target access.If the current network state value of this candidate's access point does not meet newly-increased node, select priority time other high candidate's access points to repeat aforesaid operations, until determine target access.

It is identical with the deterministic process that subscriber equipment receives the access strategy shown in Fig. 2 that subscriber equipment judges whether candidate's access point meets the process of newly-increased node, do not repeat them here.

In this example network state parameter is increased in the middle of access strategy, only needs a group network state parameter in whole access strategy, this network state parameter is applicable to all access points, and therefore this access strategy is more simple.And subscriber equipment is being received after this access strategy, and the network state value current in conjunction with candidate's access point judge respectively candidate's access point, determine that the process of access point of network state the best is more simple.

Below so that network state parameter is comprised to load parameter group, any one group or the combination of group arbitrarily in bandwidth parameter group or access network type parameter group, and the routing rule node that is applied to access strategy is that example describes.

Concrete access strategy as shown in Figure 4.Under routing rule node, increase by three new nodes, i.e. load parameter group node, bandwidth parameter group node and access network type parameter group node.

This load parameter group node comprises: peak load threshold value, weak signal threshold value and select instruction.Wherein, peak load threshold value may be defined as argument of type integer, and span can be 0 to 255.Weak signal threshold value is defined as argument of type integer.This selection instruction may be defined as Boolean type, and value is 1 or 0.When selecting to be designated as 1(or 0) time, preferably judge signal strength signal intensity, this load parameter group equipment for indicating user selects the access point that signal strength signal intensity is the strongest to be defined as target access from load value is not more than candidate's access point of peak load threshold value; When selecting to be designated as 0(or 1) time, preferably judge load value, this load parameter group equipment for indicating user selects the access point of load value minimum to be defined as target access from signal strength signal intensity is greater than candidate's access point of weak signal threshold value.

Alternatively, load parameter group node also can comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, load parameter group node is optional node; When selecting to be designated 1(or 0) time, load parameter group node is essential node.While showing that subscriber equipment is determined target access during in the time that this load parameter group node does not occur or for optional node, do not consider this load parameter group node.

This bandwidth parameter group node comprises: minimum upstream bandwidth threshold value, minimum downlink bandwidth threshold value, weak signal threshold value and select instruction.Wherein minimum upstream bandwidth threshold value, minimum downlink bandwidth threshold value and weak signal threshold value may be defined as argument of type integer.This selection instruction may be defined as Boolean type, and value is 0 or 1.When selecting to be designated as 1(or 0) time, preferably judge signal strength signal intensity, this bandwidth parameter group node equipment for indicating user is greater than candidate's access point that minimum up broadband threshold value and downlink bandwidth be greater than minimum downstream broadband threshold value and selects the access point that signal strength signal intensity is the strongest to be defined as target access from upstream bandwidth; When selecting to be designated as 0(or 1) time, preferably judge bandwidth value, this bandwidth parameter group equipment for indicating user selects the access point of upstream or downstream bandwidth maximum to be defined as target access from signal strength signal intensity is greater than candidate's access point of weak signal threshold value.

Alternatively, bandwidth parameter group node also can comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, bandwidth parameter group node is optional node; When selecting to be designated 1(or 0) time, bandwidth parameter group node is essential node.While showing that subscriber equipment is determined target access during in the time that this bandwidth parameter group node does not occur or for optional node, do not consider this bandwidth parameter group.

Access network type parameter group node comprises access network type, and this access network type may be defined as argument of type integer or character type parameter or enumeration type parameter etc.Can selected value can comprising as free public network of access network type, privately owned accessible net or charging public network etc.In addition, this access network type can be place type, therefore can selected value can comprise as stadium hospital, school or airport etc.Candidate's access point that this access network type node equipment for indicating user selects network type to conform to access network type is defined as target access.

Alternatively, access network type parameter group node also can comprise one and select mark, and it is optional node or essential node that this selection mark is used to indicate this node.This selection mark may be defined as Boolean type, and value is 0 or 1.When selecting to be designated 0(or 1) time, access network type parameter group node is optional node; When selecting to be designated 1(or 0) time, access network type parameter group node is essential node.While showing that subscriber equipment is determined target access during in the time that this access network type parameter group node does not occur or for optional node, do not consider access network type parameter group.

Subscriber equipment is receiving after the access strategy that comprises above-mentioned newly-increased node, first subscriber equipment is defined as candidate's access point by lower Access Network mark all access points, the access point of selecting current network state value to meet newly-increased node from multiple candidate's access points is defined as target access, to access.

It is as follows that subscriber equipment selects current network state value to meet the process of access point of newly-increased node from multiple candidate's access points:

If when having load parameter group node under routing rule node and being essential node, subscriber equipment obtains all candidate's access point load values and signal strength signal intensity.Subscriber equipment is determined current load value is greater than weak signal threshold value access point lower than peak load threshold value and signal strength signal intensity from all candidate's access points.In the time selecting instruction value to be 1 (or 0), subscriber equipment selects the access point that signal is the strongest to be defined as target access in above-mentioned definite access point.Be 0(or 1 when selecting instruction value) time, subscriber equipment selects the minimum access point of load to be defined as target access in above-mentioned definite access point.If subscriber equipment finds not meet in candidate's access point the access point of load parameter group, determine in candidate's access point and there is no target access.

If when having bandwidth parameter group node under routing rule node and being essential node, subscriber equipment obtains bandwidth value and the signal strength signal intensity of all candidate's access points.Subscriber equipment is determined current uplink bandwidth value and is greater than up minimum broadband threshold value and downlink bandwidth value and is greater than the access point that descending minimum broadband threshold value and signal strength signal intensity are greater than weak signal threshold value from all candidate's access points.Be 1(or 0 when selecting instruction value) time, subscriber equipment selects the access point that signal is the strongest to be defined as target access in above-mentioned definite access point.Be 0(or 1 when selecting instruction value) time, subscriber equipment selects the access point of (upstream or downstream) bandwidth maximum to be defined as target access in above-mentioned definite access point.If subscriber equipment finds not meet in candidate's access point the access point of bandwidth parameter group, determine in candidate's access point and there is no target access.

If when having access network type node under routing rule node and being essential node, subscriber equipment obtains the network type of all candidate's access points, select network type in candidate's access point to meet the access point of the access network type of access strategy instruction, and this access point is defined as to target access.If subscriber equipment is found the access point that does not have the access network type of network type and access strategy instruction to meet in candidate's access point, determine in candidate's access point and there is no target access.

If when having multiple newly-increased nodes under routing rule node and being essential node, need to from candidate's access point, select to meet the access point of multiple newly-increased nodes simultaneously, be defined as target access.Otherwise, determine in candidate's access point and there is no target access.

It should be noted that, under preferably access node or access network discovery information, newly-increased node is with to increase by three new nodes under routing rule node identical, and subscriber equipment is receiving after the access strategy that comprises above-mentioned preferred access node or access network discovery information, the process of determining target access is with to receive deterministic process after the access strategy that comprises above-mentioned routing rule node identical, and in this not go into detail.

In this example network state parameter is increased in the middle of access strategy, this access strategy is applicable to multiple access points and shares the situation that an Access Network identifies, an Access Network identifies a corresponding group network state parameter, subscriber equipment is being received after this access strategy, from multiple candidate's access points, determine the access point of network state the best in conjunction with the current network state value of candidate's access point.

Below network state parameter is comprised to any a group or the combination in any in load parameter group, bandwidth parameter group, access network type parameter group, and be applied to the routing rule node of access strategy or preferably the upper layer node of access node or access network discovery information be that example describes.

Concrete access strategy as shown in Figure 5.Under the upper layer node of routing rule node or preferred access node or access network discovery information, increase by three new nodes, i.e. load parameter group node, bandwidth parameter group node, access network type parameter group node.

Wherein, load parameter group node, bandwidth parameter group node, access network type parameter group node definition are identical with load parameter group node, bandwidth parameter group node, the access network type parameter group node definition of the access strategy shown in Fig. 4, do not repeat them here.

Subscriber equipment is receiving after the access strategy that comprises above-mentioned newly-increased node, any number of access points are defined as candidate's access point by subscriber equipment, the access point of selecting current network state value to meet newly-increased node from multiple candidate's access points is defined as target access, to access.

It is identical with the process that subscriber equipment receives the access strategy shown in Fig. 4 that subscriber equipment selects current network state value to meet the process of access point of newly-increased node from multiple candidate's access points, do not repeat them here.

In this example network state parameter is increased in the middle of access strategy, only needs a group network state parameter in whole access strategy, this network state parameter is applicable to all access points, and therefore this access strategy is more simple.And subscriber equipment is being received after this access strategy, and the process of access point of determining network state the best in conjunction with the current network state value of candidate's access point from multiple candidate's access points is more simple.

Describe a kind of subscriber equipment of providing of the embodiment of the present invention three below in detail as an example of Fig. 6 example, the structural representation of a kind of subscriber equipment that Fig. 6 provides for the embodiment of the present invention three.This subscriber equipment is for realizing the access point system of selection described in the embodiment of the present invention one.As shown in Figure 6, this subscriber equipment comprises: receiving element 610, and, the first determining unit 620 and the second determining unit 630.

The access strategy that receiving element 610 sends for reception server, this access strategy comprises network state parameter.

Alternatively, network state parameter is applied at least one in routing rule node, preferably access node and the access network discovery information in described access strategy, because each routing rule node, preferably access node and access network discovery information also comprise Access Network mark, this Access Network mark can be specially SSID.Therefore, the network state parameter that each routing rule node, preferably access node and access network discovery information comprise is different, i.e. different routing rule nodes, preferably access node and the network state parameter that comprises under access network discovery information corresponding different Access Network mark respectively.

The first determining unit 620 is for determining at least one candidate's access point according to access strategy.

In the time that access strategy comprises Access Network mark, the access point of this Access Network mark of this use is defined as candidate's access point by the first determining unit 620.It should be noted that, Access Network mark can be used by an access point, also can be used by multiple access points simultaneously.

In the time not comprising Access Network mark in access strategy, any access point is defined as candidate's access point by the first determining unit 620.

The second determining unit 630 is for determining that of at least one candidate's access point is as target access, and the network state value of this target access meets described network state parameter.

Alternatively, when this network state parameter comprises any one in peak load threshold value, weak signal threshold value, minimum broadband threshold value, access network type or combination arbitrarily, all parameters that the second determining unit 630 comprises the network state value of candidate's access point and network state parameter compare, and judge whether the network state value of this candidate's access point meets network state parameter; If the network state value of this candidate's access point meets network state parameter, determine that this candidate's access point is accessible, using this candidate's access point as target access to access.

Concrete, the definite target access of the second determining unit 630, must meet following situation: the load value of target access is not more than peak load threshold value; And/or the signal of target access is greater than weak signal threshold value; And/or the bandwidth value of target access is greater than minimum bandwidth threshold value; And/or the network type of target access conforms to access network type.

Alternatively, when this network state parameter comprises multiple parameter, each parameter can identify in a corresponding selection, selects mark to can be essential mark or optional mark.When the second determining unit 630 is determined target access, only need to judge whether network state value meets corresponding selection in multiple parameters and be designated the parameter of essential mark.

Alternatively, in access strategy, can also comprise and select instruction.The second determining unit 630 is confirmed target access according to this selection instruction from multiple candidate's access points.

Concrete, when network state parameter comprises peak load threshold value and weak signal threshold value, and select instruction while being used to indicate preferential judgement signal, the second determining unit 630 is not more than and candidate's access point that peak load threshold value and signal strength signal intensity be greater than weak signal threshold value, selects access point that signal strength signal intensity is the strongest as target access from load value; When network state parameter comprises peak load threshold value and weak signal threshold value, and while selecting instruction to be used to indicate preferential judgement load, the second determining unit 630 is not more than and candidate's access point that peak load threshold value and signal strength signal intensity be greater than weak signal threshold value, selects access point that load is minimum as target access from load value; When network state parameter comprises minimum broadband threshold value and weak signal threshold value, and select instruction while being used to indicate preferential judgement signal, the second determining unit 630 is greater than and candidate's access point that minimum bandwidth threshold value and signal strength signal intensity be greater than weak signal threshold value, selects access point that signal strength signal intensity is the strongest as target access from bandwidth value; When network state parameter comprises minimum broadband threshold value and weak signal threshold value, and select instruction while being used to indicate preferential judgement bandwidth, the second determining unit 630 is greater than candidate's access point that minimum bandwidth threshold value and signal strength signal intensity be greater than weak signal threshold value and selects the access point of bandwidth maximum as target access from bandwidth value.

The subscriber equipment that utilizes the embodiment of the present invention three to provide, the access strategy that comprises network state parameter that subscriber equipment reception server sends, first subscriber equipment determines candidate's access point according to access strategy, then from candidate's access point, select candidate's access point that network state value meets network state parameter as target access, thereby select the access point of current network state the best to access, improve network result of use.

It should be noted that, above-mentioned subscriber equipment is that included unit is just divided according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function for realizing the access point system of selection described in embodiment mono-; In addition, the concrete title of each functional unit also, just for the ease of mutual differentiation, is not limited to protection scope of the present invention.

On hardware is realized, above receiving element 610 can be receiver or transceiver.Above the first determining unit 620 and the second determining unit 630 can be embedded in or be independent of in the processor of subscriber equipment with example, in hardware, also can be stored in the memory of subscriber equipment with software form, carry out operation corresponding to above modules so that processor calls.This processor can be CPU (CPU), microprocessor, single-chip microcomputer etc.

As shown in 7 figure, the structural representation of its a kind of subscriber equipment providing for the embodiment of the present invention four.This subscriber equipment comprises transceiver 710, memory 720 and the processor 730 being connected with transceiver 710 and memory 720 respectively.Certainly, this subscriber equipment can also comprise the universal components such as antenna, Base-Band Processing parts, middle radio frequency processing parts, input/output unit, and the embodiment of the present invention is in this no longer any restriction.

Wherein, transceiver 710 is for communicating with other equipment such as servers.

In memory 720, store batch processing code, and processor 730 is for calling the program code of memory 720 storages, for carrying out following operation:

Further, described network state parameter comprises at least one in peak load threshold value, weak signal threshold value, minimum broadband threshold value and access network type, and described network state value comprises at least one in load value, signal strength signal intensity, bandwidth value and access network type.

Further, the network state value of described target access meets described network state parameter, comprises following at least one situation:

The load value of described target access is not more than described peak load threshold value; Or, weak signal threshold value described in the signal of described target access is greater than; Or the bandwidth value of described target access is greater than described minimum bandwidth threshold value; Or the network type of described target access conforms to described access network type.

Further, described access strategy also comprises selects instruction, describedly determines that in described at least one candidate's access point one, as target access, comprising:

According to described selection instruction, one described in determining at least one candidate's access point as described target access.

Further, described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or, described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that load is minimum as described target access; Or, described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or, described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects the access point of bandwidth maximum as described target access candidate's access point of weak signal threshold value described in being greater than.

Further, described network state parameter is applied to access network discovery information in described access strategy, routing rule node, preferred at least one in access node.

Further, in described access strategy, also comprise: Access Network mark, described Access Network mark is used or is shared by multiple access points by an access point; Describedly determine at least one candidate's access point according to described access strategy, comprising: determine described at least one candidate's access point according to described Access Network mark.

Further, described network state parameter is applied to the upper layer node of routing rule node, preferably access node or access network discovery information in described access strategy.

Further, described at least one candidate's access point is any at least one access point.

The subscriber equipment that utilizes the embodiment of the present invention four to provide, the access strategy that comprises network state parameter that subscriber equipment reception server sends, first subscriber equipment determines candidate's access point according to access strategy, then from candidate's access point, select candidate's access point that network state value meets network state parameter as target access, thereby select the access point of current network state the best to access, improve network result of use.

The embodiment of the present invention five also provides a kind of access point selective system, and this system comprises the subscriber equipment described in the embodiment of the present invention three or embodiment tetra-and sends the server of the arbitrary access strategy described in the present invention to subscriber equipment.

Professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can realize described function with distinct methods to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.

The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.

Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. an access point system of selection, is characterized in that, described method comprises:

2. method according to claim 1, it is characterized in that, described network state parameter comprises at least one in peak load threshold value, weak signal threshold value, minimum broadband threshold value and access network type, and described network state value comprises at least one in load value, signal strength signal intensity, bandwidth value and access network type.

3. method according to claim 2, is characterized in that, the network state value of described target access meets described network state parameter, comprises following at least one situation:

The load value of described target access is not more than described peak load threshold value; Or,

Weak signal threshold value described in the signal of described target access is greater than; Or,

The bandwidth value of described target access is greater than described minimum bandwidth threshold value; Or,

The network type of described target access conforms to described access network type.

4. according to the method in claim 2 or 3, it is characterized in that, described access strategy also comprises selects instruction, describedly determines that in described at least one candidate's access point one, as target access, comprising:

5. method according to claim 4, is characterized in that,

Described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or,

Described network state parameter comprises described peak load threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is not more than described peak load threshold value and signal strength signal intensity from load value and selects candidate's access point of weak signal threshold value described in being greater than access point that load is minimum as described target access; Or,

Described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects candidate's access point of weak signal threshold value described in being greater than access point that signal strength signal intensity is the strongest as described target access; Or,

Described network state parameter comprises described minimum broadband threshold value and described weak signal threshold value, and described selection instruction is used to indicate and is greater than described minimum bandwidth threshold value and signal strength signal intensity from bandwidth value and selects the access point of bandwidth maximum as described target access candidate's access point of weak signal threshold value described in being greater than.

6. according to the arbitrary described method of claim 1-5, it is characterized in that, described network state parameter is applied to access network discovery information in described access strategy, routing rule node, preferred at least one in access node.

7. method according to claim 6, is characterized in that, in described access strategy, also comprises: Access Network mark, and described Access Network mark is used or is shared by multiple access points by an access point;

Describedly determine at least one candidate's access point according to described access strategy, comprising:

Determine described at least one candidate's access point according to described Access Network mark.

8. according to the arbitrary described method of claim 1-5, it is characterized in that, described network state parameter is applied to the upper layer node of routing rule node, preferably access node or access network discovery information in described access strategy.

9. method according to claim 8, is characterized in that, described at least one candidate's access point is any at least one access point.

10. a subscriber equipment, is characterized in that, described subscriber equipment comprises:

11. subscriber equipmenies according to claim 10, it is characterized in that, described network state parameter comprises at least one in peak load threshold value, weak signal threshold value, minimum broadband threshold value and access network type, and described network state value comprises at least one in load value, signal strength signal intensity, bandwidth value and access network type.

12. subscriber equipmenies according to claim 11, is characterized in that, the network state value of described target access meets described network state parameter, comprise following at least one situation:

13. according to the subscriber equipment described in claim 11 or 12, it is characterized in that, described access strategy also comprise select instruction, described the second determining unit specifically for:

14. subscriber equipmenies according to claim 13, is characterized in that,

15. according to the arbitrary described subscriber equipment of claim 10-14, it is characterized in that, described network state parameter is applied to access network discovery information in described access strategy, routing rule node, preferred at least one in access node.

16. subscriber equipmenies according to claim 15, is characterized in that, in described access strategy, also comprise: Access Network mark, and described Access Network mark is used or is shared by multiple access points by an access point;

Described the first determining unit specifically for: determine described at least one candidate's access point according to described Access Network mark.

17. according to the arbitrary described subscriber equipment of claim 10-14, it is characterized in that, described network state parameter is applied to the upper layer node of routing rule node, preferably access node or access network discovery information in described access strategy.

18. subscriber equipmenies according to claim 17, is characterized in that, described at least one candidate's access point is any at least one access point.

19. 1 kinds of access point selective systems, is characterized in that, described access point selective system comprises: the arbitrary described subscriber equipment of server and claim 10-18;

Described server is for sending access strategy to the arbitrary described subscriber equipment of claim 10-18.