CN105101328A - Method and device for switching/flow migration - Google Patents
Method and device for switching/flow migration Download PDFInfo
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- CN105101328A CN105101328A CN201410188557.2A CN201410188557A CN105101328A CN 105101328 A CN105101328 A CN 105101328A CN 201410188557 A CN201410188557 A CN 201410188557A CN 105101328 A CN105101328 A CN 105101328A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
Abstract
The invention discloses a method and device for switching/flow migration. The method comprises: determining the service rate state of a terminal according to a terminal service rate and a preset threshold; determining a condition parameter of switching/flow migration according to a bias value and/or a scale factor correlative with the service rate state; and determining whether to perform switching/flow migration on the terminal according to the condition parameter. The method and the device solve a problem that switching/flow migration without regard to current service rate in the prior art may cause deterioration of user experience, and guarantee that terminals with different rates execute switching or migrate service to an appropriate target network at an appropriate time, thereby providing better integral service experience for users.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method and device of switching/stream migration.
Background technology
Mobility is the essential characteristic of wireless telecommunication system, as far as possible for user provides better mobility performance to be one of basic function of wireless telecommunication system.Comprise LTE at present, 3G (UTMS, HRPD), 2G and WLAN interior wireless communication system carry out mobility operation time, for the switching in same standard (such as, switch between different base station in LTE, switch between different base station in UTMS), switching between different honeycomb standard/be redirected (such as, switching etc. between LTE and 3G) and 3GPP and WLAN between stream migration (such as, LTE or 3G carries out service distributing to WLAN), switching/stream migration the strategy of terminal and network side does not consider that different transmission rates is different for the susceptibility of switching/stream migration, such as, the business experiences such as the service disconnection that the user that service rate is low causes for switching/stream migration decline and experience not obvious, but for the high user of service rate owing to carrying out switching/stream migration can may cause service rate to decline suddenly (such as, due to the time delay in process, the impact such as packet loss causes service rate decline or can not return to original speed very soon), thus obvious harmful effect is produced to Consumer's Experience.In addition, for switching or stream migration, can objective network provide the service rate suitable with current network to be also a factor needing to consider, because it directly affects the business experience of user for terminal.For the terminal that service rate is low, concerning objective network than being easier to the requirement meeting its service rate, but, for the terminal that service rate is high, if objective network can not provide suitable service rate for it, the decline of Consumer's Experience directly can be caused.
Do not consider the problem that terminal current business speed may cause Consumer's Experience to decline not yet to propose effective solution at present for switching or stream migration in correlation technique.
Summary of the invention
Do not consider for switching or stream migration in correlation technique the problem that terminal current business speed may cause Consumer's Experience to decline, the invention provides a kind of method and device of switching/stream migration, at least to solve the problem.
According to an aspect of the present invention, provide a kind of method of switching/stream migration, comprising: the service rate state determining described terminal according to terminal traffic speed and predetermined threshold value; The bias of being correlated with according to described service rate state and/or scale factor determine the conditional parameter of switching/stream migration; Judge whether described terminal carries out switching/stream migration according to described conditional parameter.
Preferably, determine that the service rate state of described terminal comprises according to terminal traffic speed and predetermined threshold value: the average measuring the service rate of described terminal within the service rate evaluation time of presetting; If described average exceedes high service rate threshold value, then determine that described terminal is in high service rate state; If described average exceedes middle service rate threshold value, be no more than described high service rate threshold value, then determine that described terminal is in middle service rate state.
Preferably, the bias of being correlated with according to described service rate state and/or scale factor determine that the conditional parameter of switching/stream migration comprises: obtain the bias that described service rate state is relevant; The conditional parameter of default switching/stream migration is combined with described bias and obtains the conditional parameter of current switching/stream migration; And/or, obtain the scale factor that described service rate state is relevant; Default switching delay timer is combined with described scale factor and obtains the switching delay timer of current switching/stream migration.
Preferably, described bias comprise following one of at least: signalc threshold bias, load-threshold bias, available resources gate bias value.
Preferably, the conditional parameter that obtains current switching/stream migration that the conditional parameter of default switching/stream migration is combined with described bias comprise following one of at least: when described bias is signalc threshold bias, the signal threshold value of default switching/stream migration is added with described signalc threshold bias the signal threshold value obtaining current switching/stream migration; When described bias is load-threshold bias, the load-threshold value of default switching/stream migration and described load-threshold bias are subtracted each other the load-threshold value obtaining current switching/stream migration; When described bias is available resources gate bias value, the available resources threshold value of default switching/stream migration is added with described available resources gate bias value the available resources threshold value obtaining current switching/stream migration.
Preferably, the bias of being correlated with according to described service rate state and/or scale factor determine that the conditional parameter of switching/stream migration comprises: when source network and/or objective network are WLAN base station, the conditional parameter of the bias that described terminal is correlated with according to described service rate state and/or scale factor determination stream migration; Or base station obtains the measurement report of described terminal to report, and the bias of being correlated with according to described service rate state and/or scale factor determine the conditional parameter of switching/stream migration.
Preferably, the bias of being correlated with according to described service rate state and/or scale factor determine that the conditional parameter of switching/stream migration comprises: judge whether the signal conditioning of current network can meet described terminal resident or keep connecting; If so, then the bias of being correlated with according to described service rate state and/or scale factor determine the condition of switching/stream migration, otherwise, carry out switching/stream migration according to the conditional parameter of the switching/stream migration preset.
According to a further aspect in the invention, provide a kind of device of switching/stream migration, be arranged in terminal, comprise: the first determination module, for determining the service rate state of described terminal according to terminal traffic speed and predetermined threshold value; Second determination module, determines the conditional parameter of switching/stream migration for the bias of being correlated with according to described service rate state and/or scale factor; First judge module, for judging according to described conditional parameter whether described terminal carries out switching/stream migration.
Preferably, described first determination module comprises: measuring unit, for measuring the average of the service rate of described terminal within the service rate evaluation time of presetting; First determining unit, the described average for measuring at described measuring unit exceedes high service rate threshold value, determines that described terminal is in high service rate state; Second determining unit, service rate threshold value during the described average for measuring at described measuring unit exceedes, when being no more than described high service rate threshold value, determines that described terminal is in middle service rate state.
In accordance with a further aspect of the present invention, additionally provide a kind of device of switching/stream migration, be arranged in base station, comprise: receiver module, for receiving terminal current business speed; 3rd determination module, for determining the service rate state of described terminal according to described service rate and predetermined threshold value; 4th determination module, determines the conditional parameter of switching/stream migration for the bias of being correlated with according to described service rate state and/or scale factor; Second judge module, for judging according to described conditional parameter whether described terminal carries out switching/stream migration.
By the present invention, adopt the service rate state determining this terminal according to terminal traffic speed and predetermined threshold value; The bias of being correlated with according to service rate state and/or scale factor determine the conditional parameter of switching/stream migration; Judge according to above-mentioned conditional parameter whether this terminal carries out switching/mode of stream migration, solve switching or stream migration in correlation technique and do not consider the problem that terminal current business speed may cause Consumer's Experience to decline, can guarantee the terminal of different rates suitable opportunity perform switch or by business migration to suitable objective network, thus provide better overall business experience for user.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the method for switching/stream migration according to the embodiment of the present invention;
Fig. 2 is the structured flowchart of the device of switching/stream migration according to the embodiment of the present invention;
Fig. 3 switches the/structured flowchart of the device of stream migration according to the another kind of the embodiment of the present invention;
Fig. 4 is the service rate schematic diagram of the transmission method of mobility parameters of being correlated with according to the preferred embodiment of the invention;
Fig. 5 is the schematic diagram of the mobility optimization method of middle according to the preferred embodiment of the invention service rate terminal;
Fig. 6 is the schematic diagram of the mobility optimization method of high according to the preferred embodiment of the invention service rate terminal;
Fig. 7 is the schematic diagram of the mobility optimization method do not activated according to the preferred embodiment of the invention based on service rate;
Fig. 8 is according to the preferred embodiment of the invention based on the schematic diagram of the mobility optimization method of service rate.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
In order to meet the requirement of the high terminal of service rate, may mean that objective network needs more sufficient resource or lighter load etc.Therefore, need to consider to provide rational mobility process in conjunction with the service rate of user, guarantee the terminal of different rates suitable opportunity perform switch or by business migration to suitable objective network, thus provide better overall business experience for user.
Based on above-mentioned consideration, provide a kind of method of switching/stream migration in the present embodiment, Fig. 1 is the flow chart of the method for switching/stream migration according to the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S102, determines the service rate state of this terminal according to terminal traffic speed and predetermined threshold value;
Step S104, the bias of being correlated with according to service rate state and/or scale factor determine the conditional parameter of switching/stream migration;
According to above-mentioned conditional parameter, step S106, judges whether this terminal carries out switching/stream migration.
The present embodiment passes through above-mentioned steps, corresponding service rate state is determined according to terminal traffic speed, the bias of being correlated with according to this service rate state again and/or scale factor determine the conditional parameter of switching/stream migration, thus judge whether to carry out switching/stream migration according to the conditional parameter redefined, terminal traffic rate conditions is established with the conditional parameter of switching/stream migration and associates, solve switching or stream migration in correlation technique and do not consider the problem that terminal current business speed may cause Consumer's Experience to decline, can guarantee the terminal of different rates suitable opportunity perform switch or by business migration to suitable objective network, thus provide better overall business experience for user.
As a kind of preferred implementation, be described terminal traffic speed to be divided into three kinds of service rate states in the present embodiment, these three kinds of service rate states are respectively regular traffic rate conditions, middle service rate state and high service rate state, then determine according to terminal traffic speed and predetermined threshold value that the mode of the service rate state of described terminal can be as follows:
The average of the service rate of measuring terminals within the service rate evaluation time of presetting; If this average exceedes default high service rate threshold value, then can determine that terminal is in high service rate state; If this average has exceeded the middle service rate threshold value preset, but does not exceed high service rate threshold value, then can determine that terminal is in middle service rate state; If this average does not exceed default middle service rate threshold value, then can determine that terminal is in regular traffic rate conditions.
As a kind of preferred implementation, the bias of being correlated with according to above-mentioned service rate state and/or scale factor determine that the mode of the conditional parameter of switching/stream migration can be as follows: obtain the bias that service rate state is relevant; The conditional parameter of default switching/stream migration is combined with bias and obtains the conditional parameter of current switching/stream migration; And/or, obtain the scale factor that service rate state is relevant; Default switching delay timer is combined with scale factor and obtains the switching delay timer of current switching/stream migration.
Preferably, above-mentioned bias can comprise following one of at least: signalc threshold bias, load-threshold bias, available resources gate bias value.For above-mentioned several gate bias value, the mode of the conditional parameter obtaining current switching/stream migration that combined with described bias by the conditional parameter of default switching/stream migration can be as follows:
When bias is signalc threshold bias, the signal threshold value of default switching/stream migration can be added the signal threshold value obtaining current switching/stream migration with signalc threshold bias, such as, the signal threshold value preset is 4db, signalc threshold bias is 1db, then the signal threshold value after combining can be 5db; When bias is load-threshold bias, the load-threshold value of default switching/stream migration and load-threshold bias can be subtracted each other the load-threshold value obtaining current switching/stream migration, such as, the load-threshold value preset is 60%, load-threshold bias is 2%, then the load-threshold value after combining can be 58%; When bias is available resources gate bias value, the available resources threshold value of default switching/stream migration can be added with available resources gate bias value the available resources threshold value obtaining current switching/stream migration, such as, the available resources threshold value preset is 50%, available resources gate bias value is 2%, then the available resources threshold value after combining can be 52%.Other combination can certainly be adopted, such as bias or scale factor are carried out multiplication and division etc. as coefficient, such as, for scale factor, default switching delay timer can be multiplied with scale factor and obtain the switching delay timer of current switching/stream migration, wherein scale factor can for the number being greater than 1.
As a kind of preferred implementation, the bias of being correlated with according to described service rate state and/or scale factor determine that the executive agent of the conditional parameter of switching/stream migration can be determined according to the type of source network or objective network, such as, when source network and/or objective network are WLAN base station, the bias can be correlated with according to service rate state by terminal and/or the conditional parameter of scale factor determination stream migration; Or, such as in other cases, source network is LTE/3G/2G base station etc., objective network is LTE base station, 3G or 2G base station etc., can be obtained the measurement report of terminal to report by base station, and the bias of being correlated with according to service rate state and/or scale factor determine the conditional parameter of switching/stream migration.
Preferably, before the bias of being correlated with according to service rate state and/or scale factor determine the conditional parameter of switching/stream migration, can also first judge the signal conditioning of current network whether can meet terminal resident or keep connect; If can meet, the bias then can be correlated with according to service rate state and/or scale factor determine the condition of switching/stream migration, if and can not meet, then can carry out switching/stream migration according to the conditional parameter of switching/stream migration preset, and terminal traffic speed need not be considered.
Corresponding to the method for above-mentioned switching/stream migration, additionally provide a kind of device of switching/stream migration in the present embodiment, be arranged in terminal, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, term " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.
Fig. 2 is the structured flowchart of the device of switching/stream migration according to the embodiment of the present invention, and as shown in Figure 2, this device comprises the first determination module 22, second determination module 24 and the first judge module 26, is described in detail below to modules.
First determination module 22, for determining the service rate state of this terminal according to terminal traffic speed and predetermined threshold value; Second determination module 24, is connected with the first determination module 22, and the bias that the service rate state for determining according to the first determination module 22 is correlated with and/or scale factor determine the conditional parameter of switching/stream migration; First judge module 26, is connected with the second determination module 24, judges whether this terminal carries out switching/stream migration for the conditional parameter determined according to the second determination module 24.
Preferably, the first determination module 22 can comprise: measuring unit 222, for the average of the service rate of measuring terminals within the service rate evaluation time of presetting; First determining unit 224, is connected with measuring unit 222, the average for measuring at measuring unit 222 exceedes high service rate threshold value, determines that this terminal is in high service rate state; Second determining unit 226, is connected with measuring unit 222, service rate threshold value during the average for measuring at measuring unit 222 exceedes, and when being no more than high service rate threshold value, determines that this terminal is in middle service rate state.
In the present embodiment, additionally provide the device of another kind of switching/stream migration, be arranged in base station, Fig. 3 switches the/structured flowchart of the device of stream migration according to the another kind of the embodiment of the present invention, as shown in Figure 3, this device comprises receiver module 32, the 3rd determination module 34, the 4th determination module 36 and the second judge module 38, is described in detail below to modules:
Receiver module 32, for receiving terminal current business speed; 3rd determination module 34, is connected with receiver module 32, for the service rate state of the service rate that receives according to receiver module 32 and predetermined threshold value determination terminal; 4th determination module 36, is connected with the 3rd determination module 34, and the bias that the service rate state for determining according to the 3rd determination module 34 is correlated with and/or scale factor determine the conditional parameter of switching/stream migration; Second judge module 38, is connected with the 4th determination module 36, judges whether terminal carries out switching/stream migration for the conditional parameter determined according to the 4th determination module 36.
Be described below in conjunction with preferred embodiment, following preferred embodiment combines above-described embodiment and preferred implementation thereof.
In following preferred embodiment, provide a kind of terminal mobility parameter based on service rate and mobility process optimization method, the method is for the mobility relevant parameter of different business speed, comprise: service rate scale factor (can be divided into middle service rate scale factor, high service rate scale factor), the bias that service rate is relevant (can be divided into middle service rate signal/load/available resources gate bias, high service rate signal/load/available resources gate bias), high service rate value (exceed service rate corresponding to this value and be called high service rate), middle service rate value (exceed service rate corresponding to this value and the service rate being no more than high service rate value corresponding is called middle service rate), service rate evaluation time T.
If in service rate evaluation time T, the service rate of terminal exceedes service rate corresponding to middle service rate value and is no more than service rate corresponding to high service rate value, then think that terminal is in middle service rate state; If in service rate evaluation time T, the service rate of terminal exceedes service rate corresponding to high service rate value, then think that terminal is in high service rate state; If in service rate evaluation time T, service rate or high service rate condition during terminal does not meet, then think that terminal is in normal speed state.
If terminal is in middle service rate state or high service rate state, then need to consider service rate scale factor and/or the relevant bias of service rate in the mobility process of terminal; If terminal is in regular traffic rate conditions, then without the need to considering the bias that service rate scale factor is relevant with service rate in the mobility process of terminal.
Preferably, need in the mobility process of terminal to consider that service rate scale factor can refer to, triggering medium/high service rate terminal carries out switching/and the mobility parameters of stream migration need meet the determined condition of medium/high service rate scale factor (such as, trigger the length of the delay timer TTT of medium/high service rate terminal to report measurement report=normal medium/high service rate scale factor of TTT*, wherein scale factor be greater than 1 number).
Preferably, need in the mobility process of terminal to consider that the bias that service rate is relevant can refer to:
1) triggering medium/high service rate terminal carries out switching/and the signal strength signal intensity of stream migration need meet the relevant determined signal strength conditions of signal bias of medium/high service rate (such as, in order to the terminal triggering well afoot/high service rate carries out switching/stream migration, the signal strength signal intensity of objective network needs to carry out switching than triggering general service speed terminal/signal strength signal intensity of stream migration exceeds a signal bias); Or,
2) triggering medium/high service rate terminal carries out switching/and the offered load of stream migration need meet the relevant determined condition of load deflection value of medium/high service rate (such as, in order to the terminal triggering well afoot/high service rate carries out switching/stream migration, the load of objective network needs to carry out switching than triggering general service speed terminal/load of stream migration low go out a load deflection value); Or,
3) triggering medium/high service rate terminal carries out switching/and the network resource status of stream migration need meet the relevant determined condition of available resources bias of medium/high service rate (such as, in order to the terminal triggering well afoot/high service rate carries out switching/stream migration, the available resources of objective network need to carry out switching than triggering general service speed terminal/available resources of stream migration exceed an available resources bias).
Pass through said method, the mobility parameters of service rate to terminal according to terminal adjusts, the situation that terminal is good at objective network signal conditioning, offered load is light or available resources are sufficient with high speed business is made to carry out switching/stream migration, can improve mobility performance when terminal has a high speed business, thus the mobility service improving user is experienced.
Fig. 4 is the service rate schematic diagram of the transmission method of mobility parameters of being correlated with according to the preferred embodiment of the invention, and as shown in Figure 4, this transmission method can comprise:
One, the mobility parameters that service rate is relevant is passed to terminal by network side, and network side element can be LTE base station, NodeB, 2G base station, WLAN base station etc.Relevant parameter special or broadcast can be passed to terminal by wireless resource control connection reconfiguration message (RRCConnectionReconfiguration), wireless heterogeneous networks connection establishment (RRCConnectionSetup) message, system parameters message etc. by network side.
The mobility parameters that above-mentioned service rate is relevant can comprise one of following or combination: service rate scale factor (can be divided into middle service rate scale factor, high service rate scale factor), the bias that service rate is relevant (can be divided into middle service rate signal/load/available resources gate bias, high service rate signal/load/available resources gate bias), service rate evaluation time T, high service rate value (exceed service rate corresponding to this value and be called high service rate), middle service rate value (exceed service rate corresponding to this value and the service rate being no more than high service rate value corresponding is called middle service rate).
Two, terminal is assessed its service rate according to the mobility parameters relevant to service rate obtained from network side, obtains the service rate state of terminal, and adjusts its mobility parameters according to its service rate state.
Fig. 5 is the schematic diagram of the mobility optimization method of middle according to the preferred embodiment of the invention service rate terminal, and as shown in Figure 5, the method can comprise:
Step S502, terminal to be in network 1 and to obtain the mobility parameters relevant to service rate from network, table 1, table 2 and table 3 are the value schematic diagram of above-mentioned parameter, table 1 is service rate relevant parameter according to the preferred embodiment of the invention, table 2 is service rate value corresponding relations according to the preferred embodiment of the invention, table 3 is normal speed mobility parameters (citing) according to the preferred embodiment of the invention, and network can parameters value notification terminal flexibly;
In this preferred embodiment, network 1 can be LTE base station, NodeB, 2G base station, WLAN base station;
In this preferred embodiment, network 2 can be LTE base station, NodeB, 2G base station, WLAN base station;
Table 1
| Parameter name | Value |
| Middle service rate scale factor (optional) | 1.5 |
| High service rate scale factor (optional) | 2 |
| Middle service rate signalc threshold is biased (optional) | 1db |
| Middle service rate load-threshold is biased (optional) | 2％ |
| Middle service rate available resources gate bias (optional) | 2％ |
| High service rate signalc threshold is biased (optional) | 2db |
| High service rate load-threshold is biased (optional) | 4％ |
| High service rate available resources gate bias (optional) | 4％ |
| Service rate evaluation time T | 30s |
| Middle service rate value | 3 (see table 2) |
| High service rate value | 4 (see table 2) |
Table 2
| Parameter value | Implication |
| 1 | 100kbps |
| 2 | 200kbps |
| 3 | 300kbps |
| 4 | 600kpbs |
Table 3
| Parameter name | Value |
| TTT | 80ms |
| Signal strength signal intensity Signal | 4db |
| Load Load | 60％ |
| Available resources Resource | 40％ |
Step S504, terminal is assessed its business according to the mobility parameters relevant to service rate, such as, the service rate of terminal 1 in service rate evaluation time T is 305kbps, then according to the service rate condition (600kbps>305kpbs>300kbps) in table 1, then terminal 1 is evaluated as middle service rate state;
Suppose that the signal strength signal intensity of network 2 is 7db, load is 50%, and available resources are 50%;
Step S506, the terminal 1 being in middle service rate state is determined to meet following condition for the moment, and terminal 1 can perform and be switched to network 2 or stream migration to network 2 from network 1:
Condition one: if service rate related mobility parameter contains only service rate scale factor condition, when the delay timer TTT_1 time-out of middle service rate terminal to report measurement report, service rate scale factor=80ms*1.5=120ms in the TTT* of wherein TTT_1=normal speed, the signal conditioning of objective network still meets and switches or stream migration condition;
Condition two: if when service rate related mobility parameter contains only service rate bias condition, terminal meet one of following condition or combination time,
1) signal intensity ratio of network 2 trigger general service speed terminal and carry out switching/signal strength signal intensity of stream migration exceeds a middle service rate signalc threshold bias; Such as, the signal strength signal intensity of network 2 is 7db>4+1=5db;
2) duty ratio of network 2 trigger general service speed terminal and carry out switching/load of stream migration low go out a middle service rate load deflection value; Such as, the load of network 2 is 50%<60%-2%;
The available resources of network 2 carry out switching than triggering general service speed terminal/and the available resources of stream migration exceed a middle service rate available resources bias; Such as, the available resources of network are 50%>30%+2%;
Condition three: if when service rate related mobility parameter contains service rate scale factor conditions and traffic speed bias condition, then when the delay timer TTT_1 time-out of middle service rate terminal to report measurement report, service rate scale factor=80ms*1.5=120ms in the TTT* of wherein TTT_1=normal speed, when terminal meets one of following condition or combination
1) signal intensity ratio of network 2 trigger general service speed terminal and carry out switching/signal strength signal intensity of stream migration exceeds a middle service rate signalc threshold bias; Such as, the signal strength signal intensity of network 2 is 7db>4+1=5db;
2) duty ratio of network 2 trigger general service speed terminal and carry out switching/load of stream migration low go out a middle service rate load deflection value; Such as, the load of network 2 is 50%<60%-2%;
3) available resources of network 2 carry out switching than triggering general service speed terminal/available resources of stream migration exceed a middle service rate available resources bias; Such as, the available resources of network are 50%>30%+2%.
In step S506, if source network is LTE/3G/2G base station, objective network is LTE base station, 3G or 2G base station, then measurement report can be reported base station when meeting above-mentioned condition by terminal, carries out switch decision by base station; If objective network is WLAN base station, then terminal can carry out stream migration judgement voluntarily when meeting above-mentioned condition.If source network is WLAN base station, can be LTE base station, NodeB, 2G or WLAN base station regardless of objective network, carries out stream migration judgement by terminal voluntarily when meeting above-mentioned condition.
This preferred embodiment be usually not used in terminal the signal conditioning of current network do not met terminal resident or keep connect scene, such as, if the signal conditioning of the current network of terminal is deteriorated, when can not continue as Terminal Service, terminal can ignore the relevant moving parameter condition of service rate, carries out mobility process by normal mobility condition.
Fig. 6 is the schematic diagram of the mobility optimization method of high according to the preferred embodiment of the invention service rate terminal, and as shown in Figure 6, the method comprises:
Step S602, terminal to be in network 1 and to obtain the mobility parameters relevant to service rate from network, and table 1, table 2 and table 3 are the value schematic diagram of above-mentioned parameter, and network can parameters value notification terminal flexibly;
In this preferred embodiment, network 1 can be LTE base station, NodeB, 2G base station, WLAN base station;
In this preferred embodiment, network 2 can be LTE base station, NodeB, 2G base station, WLAN base station;
Step S604, terminal is assessed its business according to the mobility parameters relevant to service rate, such as, the service rate of terminal 1 in service rate evaluation time T is 700kbps, then according to the service rate condition (700kbps>600kbps) in table 1, then terminal 1 is evaluated as high service rate state;
Suppose that the signal strength signal intensity of network 2 is 7db, load is 50%, and available resources are 50%;
Step S606, the terminal 1 being in high service rate state is determined to meet following condition for the moment, and terminal 1 can perform and be switched to network 2 or stream migration to network 2 from network 1:
Condition one: if service rate related mobility parameter contains only service rate scale factor condition, when the delay timer TTT_1 time-out of high service rate terminal to report measurement report, the wherein TTT* height service rate scale factor=80ms*2=160ms of TTT_1=normal speed, the signal conditioning of objective network still meets switching or stream migration condition;
Condition two: if when service rate related mobility parameter contains only service rate bias condition, terminal meet one of following condition or combination time,
1) signal intensity ratio of network 2 trigger general service speed terminal and carry out switching/signal strength signal intensity of stream migration exceeds a high service rate signalc threshold bias; Such as, the signal strength signal intensity of network 2 is 7db>4+2=6db;
2) duty ratio of network 2 trigger general service speed terminal and carry out switching/load of stream migration low go out a high service rate load deflection value; Such as, the load of network 2 is 50%<60%-4%;
3) available resources of network 2 carry out switching than triggering general service speed terminal/available resources of stream migration exceed a middle service rate available resources bias; Such as, the available resources of network are 50%>30%+4%;
Condition three: if when service rate related mobility parameter contains service rate scale factor conditions and traffic speed bias condition, then when the delay timer TTT_1 time-out of high service rate terminal to report measurement report, service rate scale factor=80ms*2=160ms in the TTT* of wherein TTT_1=normal speed, when terminal meets one of following condition or combination
1) signal intensity ratio of network 2 trigger general service speed terminal and carry out switching/signal strength signal intensity of stream migration exceeds a high service rate signalc threshold bias; Such as, the signal strength signal intensity of network 2 is 7db>4+2=6db;
2) duty ratio of network 2 trigger general service speed terminal and carry out switching/load of stream migration low go out a high service rate load deflection value; Such as, the load of network 2 is 50%<60%-4%;
3) available resources of network 2 carry out switching than triggering general service speed terminal/available resources of stream migration exceed a high service rate available resources bias; Such as, the available resources of network are 50%>30%+4%.
In step S606, if source network is LTE/3G/2G base station, objective network is LTE base station, 3G or 2G base station, then measurement report is reported base station when meeting above-mentioned condition by terminal, carries out switch decision by base station; If objective network is WLAN base station, then terminal carries out stream migration judgement voluntarily when meeting above-mentioned condition.If source network is WLAN base station, no matter objective network is LTE base station, NodeB, 2G or WLAN base station, then carry out stream migration judgement by terminal voluntarily when meeting above-mentioned condition.
This preferred embodiment be usually not used in terminal the signal conditioning of current network do not met terminal resident or keep connect scene, such as, if the signal conditioning of the current network of terminal is deteriorated, when can not continue as Terminal Service, terminal can ignore the relevant moving parameter condition of service rate, carries out mobility process by normal mobility condition.
Fig. 7 is the schematic diagram of the mobility optimization method do not activated according to the preferred embodiment of the invention based on service rate, and as shown in Figure 7, the method can comprise:
Step S702, terminal is in connected state at network 1 and carries out data service;
Step S704, terminal is deteriorated at the signal of network 1, then terminal does not carry out service rate state estimation (comprise and do not use service rate relevant parameter to carry out mobility parameters adjustment etc.), just undertaken switching or stream migration assessment by regular traffic rate parameter, such as, according to the A1-A6 defined in 3GPPTS36.331, the measurement event such as B1-B2 carry out mobility associative operation;
Step S706, when switching when terminal meets regular traffic speed or stream migration condition, terminal performs the switching of network 2 or performs the stream migration of network 2.
Fig. 8 is that as shown in Figure 8, the method comprises according to the preferred embodiment of the invention based on the schematic diagram of the mobility optimization method of service rate:
Step S802, terminal to be in network 1 and to obtain the mobility parameters relevant to service rate from network, and table 1, table 2 and table 3 are the value schematic diagram of above-mentioned parameter, and network can parameters value notification terminal flexibly;
In this preferred embodiment, network 1 can be LTE base station, NodeB, 2G base station, WLAN base station;
In this preferred embodiment, network 2 can be LTE base station, NodeB, 2G base station, WLAN base station;
Step S804, terminal is assessed its business according to the mobility parameters relevant to service rate, such as, the service rate of terminal in service rate evaluation time T is 700kbps, then according to the service rate condition (700kbps>600kpbs) in table 1, then terminal evaluates is high service rate state;
Suppose that the signal strength signal intensity of network 2 is 5db (supposing that network side only provides signalc threshold bias);
Step S806, the terminal being in high service rate state does not meet signalc threshold bias condition, and terminal stays network 1 by continuing, and specifically can comprise,
When the delay timer TTT_2 time-out of high service rate terminal to report measurement report, wherein TTT_2=normal TTT* height service rate scale factor=80ms*2=160ms, the signal strength signal intensity of network 2 is less than and triggers general service speed terminal and carry out switching/signal strength signal intensity of stream migration and high service rate signalc threshold bias sum; Such as, the signal strength signal intensity of network 2 is 5db<4+2=6db;
Step S808, terminal is assessed its business according to the mobility parameters relevant to service rate again, such as, the service rate of terminal in service rate evaluation time T is 700kbps, then according to the service rate condition (700kbps>600kpbs) in table 1, then terminal evaluates is high service rate state;
Suppose that the signal strength signal intensity of network 2 is 7db (supposing that network side only provides signalc threshold bias);
Step S810, the terminal being in high service rate state meets signalc threshold bias condition, and terminal can perform and be switched to network 2 or stream migration to network 2 from network 1, specifically can comprise,
When the delay timer TTT_2 time-out of high service rate terminal to report measurement report, wherein TTT_2=normal TTT* height service rate scale factor=80ms*2=160ms, the signal strength signal intensity of network 2 is greater than and triggers general service speed terminal and carry out switching/signal strength signal intensity of stream migration and high service rate signalc threshold bias sum; Such as, the signal strength signal intensity of network 2 is 7db>4+2=6db.
In step S810, if source network is LTE/3G/2G base station, objective network is LTE base station, 3G or 2G base station, then measurement report can be reported base station when meeting above-mentioned condition by terminal, carries out switch decision by base station; If objective network is WLAN base station, then terminal can carry out stream migration judgement voluntarily when meeting above-mentioned condition.If source network is WLAN base station, can be LTE base station, NodeB, 2G or WLAN base station regardless of objective network, then carries out stream migration judgement by terminal voluntarily when meeting above-mentioned condition.
In the preferred embodiment, if network side only provides load deflection value or available resources bias, processing method and the present embodiment similar.The present embodiment illustrate when the state (signal conditioning or loading condition or available resources condition etc.) of objective network do not meet mobility parameters corresponding to the service rate of terminal require time, then can not perform the switching from source network to objective network or business migration.
This preferred embodiment be usually not used in terminal the signal conditioning of current network do not met terminal resident or keep connect scene, such as, if the signal conditioning of terminal current network is deteriorated, when can not continue as Terminal Service, terminal can ignore the relevant moving parameter condition of service rate, carries out mobility process by normal mobility condition.
In another embodiment, additionally provide a kind of software, this software is for performing the technical scheme described in above-described embodiment and preferred embodiment.
In another embodiment, additionally provide a kind of storage medium, store above-mentioned software in this storage medium, this storage medium includes but not limited to CD, floppy disk, hard disk, scratch pad memory etc.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a method for switching/stream migration, is characterized in that, comprising:
The service rate state of described terminal is determined according to terminal traffic speed and predetermined threshold value;
The bias of being correlated with according to described service rate state and/or scale factor determine the conditional parameter of switching/stream migration;
Judge whether described terminal carries out switching/stream migration according to described conditional parameter.
2. method according to claim 1, is characterized in that, determines that the service rate state of described terminal comprises according to terminal traffic speed and predetermined threshold value:
Measure the average of the service rate of described terminal within the service rate evaluation time of presetting;
If described average exceedes high service rate threshold value, then determine that described terminal is in high service rate state;
If described average exceedes middle service rate threshold value, be no more than described high service rate threshold value, then determine that described terminal is in middle service rate state.
3. method according to claim 1 and 2, is characterized in that, the bias of being correlated with according to described service rate state and/or scale factor determine that the conditional parameter of switching/stream migration comprises:
Obtain the bias that described service rate state is relevant; The conditional parameter of default switching/stream migration is combined with described bias and obtains the conditional parameter of current switching/stream migration; And/or,
Obtain the scale factor that described service rate state is relevant; Default switching delay timer is combined with described scale factor and obtains the switching delay timer of current switching/stream migration.
4. method according to claim 3, is characterized in that, described bias comprise following one of at least: signalc threshold bias, load-threshold bias, available resources gate bias value.
5. method according to claim 4, is characterized in that, the conditional parameter that obtains current switching/stream migration that the conditional parameter of default switching/stream migration is combined with described bias comprise following one of at least:
When described bias is signalc threshold bias, the signal threshold value of default switching/stream migration is added with described signalc threshold bias the signal threshold value obtaining current switching/stream migration;
When described bias is load-threshold bias, the load-threshold value of default switching/stream migration and described load-threshold bias are subtracted each other the load-threshold value obtaining current switching/stream migration;
When described bias is available resources gate bias value, the available resources threshold value of default switching/stream migration is added with described available resources gate bias value the available resources threshold value obtaining current switching/stream migration.
6. method according to any one of claim 1 to 5, is characterized in that, the bias of being correlated with according to described service rate state and/or scale factor determine that the conditional parameter of switching/stream migration comprises:
When source network and/or objective network are WLAN base station, the conditional parameter of the bias that described terminal is correlated with according to described service rate state and/or scale factor determination stream migration; Or,
Base station obtains the measurement report of described terminal to report, and the bias of being correlated with according to described service rate state and/or scale factor determine the conditional parameter of switching/stream migration.
7. method according to any one of claim 1 to 5, is characterized in that, the bias of being correlated with according to described service rate state and/or scale factor determine that the conditional parameter of switching/stream migration comprises:
Judge the signal conditioning of current network whether can meet described terminal resident or keep connect;
If so, then the bias of being correlated with according to described service rate state and/or scale factor determine the condition of switching/stream migration, otherwise, carry out switching/stream migration according to the conditional parameter of the switching/stream migration preset.
8. a device for switching/stream migration, is arranged in terminal, it is characterized in that, comprising:
First determination module, for determining the service rate state of described terminal according to terminal traffic speed and predetermined threshold value;
Second determination module, determines the conditional parameter of switching/stream migration for the bias of being correlated with according to described service rate state and/or scale factor;
First judge module, for judging according to described conditional parameter whether described terminal carries out switching/stream migration.
9. device according to claim 8, is characterized in that, described first determination module comprises:
Measuring unit, for measuring the average of the service rate of described terminal within the service rate evaluation time of presetting;
First determining unit, the described average for measuring at described measuring unit exceedes high service rate threshold value, determines that described terminal is in high service rate state;
Second determining unit, service rate threshold value during the described average for measuring at described measuring unit exceedes, when being no more than described high service rate threshold value, determines that described terminal is in middle service rate state.
10. a device for switching/stream migration, is arranged in base station, it is characterized in that, comprising:
Receiver module, for receiving terminal current business speed;
3rd determination module, for determining the service rate state of described terminal according to described service rate and predetermined threshold value;
4th determination module, determines the conditional parameter of switching/stream migration for the bias of being correlated with according to described service rate state and/or scale factor;
Second judge module, for judging according to described conditional parameter whether described terminal carries out switching/stream migration.
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| CN201410188557.2A CN105101328A (en) | 2014-05-06 | 2014-05-06 | Method and device for switching/flow migration |
| PCT/CN2014/089357 WO2015169062A1 (en) | 2014-05-06 | 2014-10-23 | Method and device for switching/stream migration |
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