WO2015169062A1 - Method and device for switching/stream migration - Google Patents

Abstract

Disclosed are a method and device for switching/stream migration. The method comprises: according to a service rate of a terminal and a pre-set threshold value, determining a service rate state of the terminal; according to an offset value related to the service rate state and/or a scale factor, determining a condition parameter for switching/stream migration; and according to the condition parameter, judging whether the terminal conducts switching/stream migration. By means of the present invention, the problem in the related art that the user experience may be impaired due to the fact that the current service rate of a terminal is not taken into account during switching or stream migration is solved, so that it can be guaranteed that terminals of different rates conduct switching or migrate services to an appropriate target network at an appropriate opportunity, thereby providing better overall service experience for a user.

Description

Switching/flow migration method and device Technical field

The present invention relates to the field of communications, and in particular, to a method and apparatus for handover/stream migration.

Background technique

Mobility is a basic feature of wireless communication systems. Trying to provide users with better mobility performance is one of the basic functions of wireless communication systems. At present, wireless communication systems including LTE, 3G (UTMS, HRPD), 2G, and WLAN perform handover in the same system when performing mobility operations (for example, handover between different base stations in LTE, handover between different base stations in UTMS, etc.) ), handover/redirection between different cellular systems (eg, handover between LTE and 3G, etc.) and flow migration between 3GPP and WLAN (eg, LTE or 3G traffic splitting to WLAN), terminal and network side handover The flow/migration strategy does not consider the different transmission rates. The sensitivity of the handover/streaming is different. For example, users with low service rates are not aware of the service experience degradation caused by handover/stream migration, but the service rate is high. Users may experience a sudden drop in service rate due to handover/stream migration (for example, due to delays in the process, packet loss, etc., the service rate is degraded or cannot be quickly restored to the original rate), which makes the user experience more obvious. Bad effects. In addition, for handover or flow migration, whether the target network can provide the terminal with the service rate equivalent to the current network is also a factor to be considered because it directly affects the user's service experience. For a terminal with a low service rate, it is easier for the target network to meet the requirements of its service rate. However, for a terminal with a high service rate, if the target network cannot provide a comparable service rate, it will directly lead to the user. The decline in experience.

For the related art, the handover or the flow migration does not consider the current service rate of the terminal, which may lead to a decrease in the user experience. Currently, no effective solution has been proposed.

Summary of the invention

The embodiments of the present invention provide a method and an apparatus for switching/streaming to at least solve the problem that the handover or the flow migration in the related art may cause the user experience to decrease without considering the current service rate of the terminal.

According to an embodiment of the present invention, a method for handover/flow migration is provided, including: determining a service rate state of the terminal according to a terminal service rate and a preset threshold; and determining, according to the service rate state, an offset value and And/or a scaling factor determines a condition parameter of the handover/stream migration; determining, according to the condition parameter, whether the terminal performs handover/stream migration.

Determining the service rate status of the terminal according to the terminal service rate and the preset threshold, including: measuring an average value of the service rate of the terminal within a preset service rate evaluation time; if the average value exceeds a high service rate threshold, determining the The terminal is in a high traffic rate state; if the average exceeds the medium traffic rate threshold and does not exceed the high traffic rate threshold, it is determined that the terminal is in a medium traffic rate state.

Determining the condition parameter of the handover/stream migration according to the offset value and/or the scale factor related to the service rate state includes: acquiring an offset value related to the service rate state; and setting a condition parameter of the preset handover/flow migration Combining the offset values to obtain a current handover/flow migration condition parameter; and/or acquiring a scale factor related to the service rate state; combining a preset handover delay timer with the scale factor to obtain a current Switching delay timer for switching/stream migration.

The offset value includes at least one of: a signal threshold offset value, a load threshold offset value, and an available resource threshold offset value.

Combining the preset handover/stream migration condition parameter with the offset value to obtain a current handover/flow transition condition parameter includes at least one of the following: in the case where the offset value is a signal threshold offset value Adding a preset switching/streaming signal threshold value to the signal threshold offset value to obtain a current switching/streaming signal threshold value; where the offset value is a load threshold offset value In the case, the preset load/flow migration load threshold is subtracted from the load threshold offset value to obtain a current handover/flow migration load threshold; where the offset value is an available resource threshold In the case of the value, the available resource threshold value of the preset handover/stream migration is added to the available resource threshold offset value to obtain the available resource threshold of the current handover/stream migration.

Determining the condition parameter of the handover/stream migration according to the service rate state-related offset value and/or the scale factor includes: when the source network and/or the target network is a WLAN base station, the terminal according to the service rate state The associated offset value and/or the scale factor determines a condition parameter of the flow migration; or the base station acquires the measurement report reported by the terminal, and determines the handover/flow according to the offset value and/or the scale factor related to the service rate state. Conditional parameters for migration.

Determining the condition parameter of the handover/stream migration according to the service rate state related offset value and/or the scale factor includes: determining whether the signal condition of the current network can satisfy the terminal camping or maintaining the connection; if yes, according to the The offset value and/or the scale factor related to the service rate state determine the condition of the handover/stream migration. Otherwise, the handover/stream migration is performed according to the preset handover/flow migration condition parameter.

According to another embodiment of the present invention, a device for switching/streaming is provided, which is located in a terminal, and includes: a first determining module, configured to determine a service rate state of the terminal according to a terminal service rate and a preset threshold; a second determining module, configured to determine a switch according to an offset value and/or a scale factor associated with the service rate state The condition parameter of the flow migration; the first determining module is configured to determine, according to the condition parameter, whether the terminal performs switching/stream migration.

The first determining module includes: a measuring unit configured to measure an average value of a service rate of the terminal within a preset service rate evaluation time; and a first determining unit configured to exceed the average value measured by the measuring unit In the case of a high traffic rate threshold, the terminal is determined to be in a high traffic rate state; and the second determining unit is configured to: the average value measured by the measuring unit exceeds a medium traffic rate threshold, and does not exceed the high traffic rate threshold. In the case, it is determined that the terminal is in a medium traffic rate state.

According to still another embodiment of the present invention, a device for switching/streaming is provided, which is located in a base station, and includes: a receiving module, configured to receive a current service rate of the terminal; and a third determining module, configured to be according to the service rate Determining a service rate state of the terminal with a preset threshold; the fourth determining module is configured to determine a condition parameter of the switching/flow migration according to the offset value and/or the scale factor related to the service rate state; the second determining module, And determining, according to the condition parameter, whether the terminal performs handover/stream migration.

According to the embodiment of the present invention, the service rate state of the terminal is determined according to the terminal service rate and the preset threshold; and the condition parameter of the handover/flow migration is determined according to the offset value and/or the scale factor related to the service rate state; The method of determining whether the terminal performs the handover/stream migration manner solves the problem that the handover or the traffic migration in the related art may cause the user experience to decrease without considering the current service rate of the terminal, and can ensure that the terminals at different rates perform the handover or the service at an appropriate timing. Migrate to the right target network to provide users with a better overall business experience.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flow chart of a method of handover/stream migration according to an embodiment of the present invention;

2 is a structural block diagram of an apparatus for handover/stream migration according to an embodiment of the present invention;

3 is a structural block diagram of another apparatus for switching/stream migration according to an embodiment of the present invention;

4 is a schematic diagram of a method of communicating traffic rate related mobility parameters in accordance with a preferred embodiment of the present invention;

5 is a schematic diagram of a mobility optimization method of a medium traffic rate terminal according to a preferred embodiment of the present invention;

6 is a schematic diagram of a mobility optimization method of a high traffic rate terminal according to a preferred embodiment of the present invention;

7 is a schematic diagram of a method of not deactivating a traffic rate based mobility optimization method in accordance with a preferred embodiment of the present invention;

8 is a schematic diagram of a traffic rate based mobility optimization method in accordance with a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In order to meet the requirements of a terminal with a high service rate, it may mean that the target network needs more resources or a lighter load. Therefore, it is necessary to consider providing a reasonable mobility process in combination with the user's service rate, ensuring that terminals of different rates perform handover at the right time or migrate the service to a suitable target network, thereby providing a better overall service experience for the user.

Based on the above considerations, a method for handover/flow migration is provided in this embodiment. FIG. 1 is a flowchart of a method for handover/stream migration according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps. :

Step S102: Determine a service rate state of the terminal according to the terminal service rate and a preset threshold.

Step S104, determining a condition parameter of the switching/flow migration according to the offset value and/or the scale factor related to the service rate state ("/" in this document is a shorthand for "and/or");

Step S106: Determine, according to the condition parameter, whether the terminal performs handover/stream migration.

In this embodiment, the corresponding service rate state is determined according to the terminal service rate, and the condition parameter of the handover/flow migration is determined according to the offset value and/or the scale factor related to the service rate state, so as to be based on the re-determined condition parameter. It is determined whether the handover/stream migration is performed, and the terminal service rate state is associated with the handover/flow migration condition parameter, which solves the problem that the handover or the flow migration in the related art does not consider the current service rate of the terminal, which may cause the user experience to decrease. Ensure that terminals at different rates perform handovers at the right time or migrate services to the appropriate target network to provide a better overall business experience for users.

As a preferred embodiment, in the embodiment, the terminal service rate is divided into three service rate states, which are respectively a normal service rate state, a medium traffic rate state, and a high service rate. The status, the manner of determining the service rate status of the terminal according to the terminal service rate and the preset threshold may be as follows:

Measure the average value of the service rate of the terminal in the preset service rate evaluation time; if the average value exceeds the preset high service rate threshold, determine that the terminal is in the high service rate state; if the average value exceeds the preset medium service rate The threshold, but not exceeding the high traffic rate threshold, may determine that the terminal is in the medium traffic rate state; if the average does not exceed the preset medium traffic rate threshold, it may be determined that the terminal is in the normal traffic rate state.

As a preferred implementation manner, the method for determining the condition parameter of the handover/stream migration according to the foregoing service rate state-related offset value and/or the scale factor may be as follows: acquiring a service rate state-related offset value; /flow migration condition parameter combined with the offset value to obtain the current handover/flow migration condition parameter; and/or, obtain the service rate state related scale factor; combine the preset handover delay timer with the scale factor to obtain The current handover/stream migration handover delay timer.

Preferably, the offset value may include at least one of the following: a signal threshold offset value, a load threshold offset value, and an available resource threshold offset value. For the above several threshold offset values, the method of combining the preset handover/stream migration condition parameters with the offset values to obtain the current handover/stream migration condition parameters may be as follows:

In the case where the offset value is the signal threshold offset value, the preset switching/streaming signal threshold value and the signal threshold offset value may be added to obtain the current switching/streaming signal threshold value, for example, The preset signal threshold is 4db, the signal threshold offset is 1db, and the combined signal threshold can be 5db; if the offset is the load threshold offset, the preset can be The load threshold of the switching/stream migration is subtracted from the load threshold offset value to obtain the current load/flow migration load threshold. For example, the preset load threshold is 60%, and the load threshold offset is 2 %, the combined load threshold can be 58%; if the offset value is the available resource threshold offset, the available resource threshold and the available resource threshold can be biased. The value is added to obtain the available resource threshold for the current handover/stream migration. For example, the preset available resource threshold is 50%, and the available resource threshold offset is 2%, then the combined available resource threshold. The value can be 52%. Of course, other combinations may also be used, such as multiplying or dividing the offset value or the scale factor as a coefficient. For example, for the scale factor, the preset switch delay timer may be multiplied by the scale factor to obtain the current switch/stream migration. Switching delay timer, where the scaling factor can be a number greater than one.

As a preferred implementation manner, the execution body that determines the condition parameter of the handover/stream migration according to the service rate state related offset value and/or the scale factor may be determined according to the source network or the type of the target network, for example, at the source. In the case where the network and/or the target network is a WLAN base station, the terminal may determine the condition parameter of the flow migration according to the offset value and/or the scale factor related to the service rate state; or, for example, in other cases, the source network is LTE/ For the 3G/2G base station, the target network is an LTE base station, a 3G or a 2G base station, etc., and the base station can obtain the measurement report reported by the terminal, and determine the condition of the handover/flow migration according to the offset value and/or the scale factor related to the service rate state. parameter.

Preferably, before determining the condition parameter of the handover/stream migration according to the offset value and/or the scale factor related to the service rate state, it may also first determine whether the signal condition of the current network can satisfy the terminal camping or maintaining the connection; if satisfied, The condition of the handover/stream migration may be determined according to the offset value and/or the scale factor related to the service rate state, and if not, the handover/stream migration may be performed according to the preset handover/flow migration condition parameter, and It is not necessary to consider the terminal service rate.

Corresponding to the foregoing method for switching/streaming, in this embodiment, a device for switching/streaming is further provided, which is located in the terminal, and the device is configured to implement the foregoing embodiment and the preferred embodiment, and has not been described. Let me repeat. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

2 is a structural block diagram of an apparatus for switching/stream migration according to an embodiment of the present invention. As shown in FIG. 2, the apparatus includes a first determining module 22, a second determining module 24, and a first determining module 26, The module is described in detail.

The first determining module 22 is configured to determine a service rate state of the terminal according to the terminal service rate and the preset threshold. The second determining module 24 is connected to the first determining module 22 and configured to be determined according to the service rate determined by the first determining module 22. The state-related offset value and/or the scale factor determines the condition parameter of the switch/stream migration; the first determining module 26 is connected to the second determining module 24, and is configured to determine whether the terminal is determined according to the condition parameter determined by the second determining module 24. Switch/stream migration.

Preferably, the first determining module 22 may include: a measuring unit 222 configured to measure a mean value of a service rate of the terminal within a preset service rate evaluation time; the first determining unit 224 is connected to the measuring unit 222 and configured to be in the measurement If the average value measured by the unit 222 exceeds the high traffic rate threshold, the terminal is determined to be in a high traffic rate state; the second determining unit 226 is connected to the measuring unit 222, and is configured to exceed the medium traffic rate threshold by the average measured by the measuring unit 222. If the high traffic rate threshold is not exceeded, it is determined that the terminal is in the medium traffic rate state.

In this embodiment, another device for switching/flow migration is provided, which is located in the base station. FIG. 3 is a structural block diagram of another device for switching/stream migration according to an embodiment of the present invention, as shown in FIG. The device includes a receiving module 32, a third determining module 34, a fourth determining module 36, and a second determining module 38. The following describes each module in detail:

The receiving module 32 is configured to receive the current service rate of the terminal. The third determining module 34 is connected to the receiving module 32, and is configured to determine the service rate state of the terminal according to the service rate received by the receiving module 32 and the preset threshold. The fourth determining module 36 And connected to the third determining module 34, and configured to be determined according to the third determining module 34. The rate state-related offset value and/or the scale factor determines the condition parameter of the switch/stream migration; the second determining module 38 is connected to the fourth determining module 36, and is configured to determine whether the terminal is determined according to the condition parameter determined by the fourth determining module 36. Switch/stream migration.

The following description is made in conjunction with the preferred embodiments, and the following preferred embodiments incorporate the above-described embodiments and preferred embodiments thereof.

In the following preferred embodiments, a service mobility-based terminal mobility parameter and a mobility processing optimization method are provided. The method is directed to mobility-related parameters of different service rates, including: a service rate scaling factor (which can be classified into a medium service). Rate scale factor, high traffic rate scale factor), service rate related offset value (can be divided into medium traffic rate signal / load / available resource threshold offset, high traffic rate signal / load / available resource threshold offset), high The service rate value (the service rate corresponding to the value is called the high service rate), the medium service rate value (the service rate corresponding to the service rate corresponding to the value and not exceeding the high service rate value is called the medium service rate), and the service rate. Evaluation time T.

If, during the service rate evaluation time T, the service rate of the terminal exceeds the service rate corresponding to the medium service rate value and does not exceed the service rate corresponding to the high service rate value, the terminal is considered to be in the medium service rate state; If the service rate of the terminal exceeds the service rate corresponding to the high service rate value, the terminal is considered to be in the high service rate state. If the terminal does not meet the medium service rate or the high service rate condition within the service rate evaluation time T, the terminal is considered to be in the Normal rate status.

If the terminal is in the medium service rate state or the high traffic rate state, the mobility of the terminal needs to consider the service rate scale factor and/or the service rate-related offset value; if the terminal is in the normal service rate state, the terminal mobility There is no need to consider the service rate scale factor and the traffic rate related offset value in the processing.

Preferably, the service rate scale factor needs to be considered in the mobility processing of the terminal, and the mobility parameter that triggers the medium/high service rate terminal to perform handover/stream migration needs to meet the condition determined by the medium/high service rate scale factor (for example, The length of the delay timer TTT that triggers the mid/high service rate terminal to report the measurement report = the normal TTT* medium/high traffic rate scale factor, where the scale factor is a number greater than one).

Preferably, the offset value of the service rate related to the mobility processing of the terminal may refer to:

1) The signal strength for triggering the medium/high traffic rate terminal to perform handover/stream migration needs to meet the signal strength condition determined by the medium/high traffic rate related signal offset value (for example, to trigger the terminal in the medium/high service rate) For handover/stream migration, the signal strength of the target network needs to be higher than the signal strength of the handover/stream migration triggering the normal traffic rate terminal; or

2) The network load that triggers the medium/high service rate terminal to perform handover/stream migration needs to meet the conditions determined by the medium/high service rate-related load offset value (for example, to trigger the handover of the terminal in the medium/high service rate) /stream migration, the load of the target network needs to be lower than the load that triggers the switching/stream migration of the normal service rate terminal; or

3) The condition that the network resource state triggering the medium/high service rate terminal to perform handover/stream migration needs to meet the condition determined by the available resource offset value related to the medium/high service rate (for example, to trigger the terminal in the medium/high service rate) For handover/stream migration, the available resources of the target network need to be higher than the available resources that trigger the handover/stream migration of the normal service rate terminal by one available resource offset value).

Through the above method, the mobility parameter of the terminal is adjusted according to the service rate of the terminal, so that the terminal with the medium-high speed service can perform handover/stream migration when the target network signal condition is good, the network load is light, or the available resources are sufficient, and the terminal can be improved. The mobility performance of medium and high-speed services improves the user's mobile business experience.

4 is a schematic diagram of a method for transmitting a traffic rate-related mobility parameter according to a preferred embodiment of the present invention. As shown in FIG. 4, the method may include:

The network side transmits the mobility parameter related to the service rate to the terminal, and the network side network element may be an LTE base station, a 3G base station, a 2G base station, a WLAN base station, or the like. The network side may transmit relevant parameters to the terminal through a dedicated or broadcast message such as a RRC Connection Reconfiguration, an RRC Connection Setup message, a system parameter message, or the like.

The mobility parameter related to the foregoing service rate may include one or a combination of the following: a traffic rate scaling factor (which may be divided into a medium traffic rate scaling factor, a high traffic rate scaling factor), and a service rate related offset value (which may be classified into a medium service). Rate signal/load/available resource threshold offset, high traffic rate signal/load/available resource threshold offset), service rate evaluation time T, high service rate value (the service rate corresponding to the value is called high service rate), The medium service rate value (the service rate corresponding to the service rate corresponding to the value and not exceeding the high service rate value is called the medium service rate).

2. The terminal evaluates the service rate according to the mobility parameter related to the service rate obtained from the network side, obtains the service rate status of the terminal, and adjusts the mobility parameter according to the service rate status.

FIG. 5 is a schematic diagram of a mobility optimization method of a medium service rate terminal according to a preferred embodiment of the present invention. As shown in FIG. 5, the method may include:

Step S502, the terminal is in the network 1 and has obtained the mobility parameter related to the service rate from the network. Table 1, Table 2 and Table 3 are the values of the above parameters, and Table 1 is a diagram according to a preferred embodiment of the present invention. Table 2 is a service rate value correspondence according to a preferred embodiment of the present invention, and Table 3 is a normal rate mobility parameter (example) according to a preferred embodiment of the present invention. The network can flexibly set parameter values and notify the terminal;

In the preferred embodiment, the network 1 may be an LTE base station, a 3G base station, a 2G base station, or a WLAN base station;

In the preferred embodiment, the network 2 may be an LTE base station, a 3G base station, a 2G base station, or a WLAN base station;

Table 1

parameter name	Value
		Medium service rate scale factor (optional)	1.5
High traffic rate scaling factor (optional)	2
		Medium service rate signal threshold offset (optional)	1db
Medium traffic rate load threshold offset (optional)	2%
		Medium service rate available resource threshold offset (optional)	2%
High traffic rate signal threshold offset (optional)	2db
		High traffic rate load threshold offset (optional)	4%
High service rate available resource threshold offset (optional)	4%
		Service rate evaluation time T	30s
Medium service rate value	3 (see Table 2)
		High traffic rate value	4 (see Table 2)

Table 2

Parameter value	meaning
		1	100kbps
2	200kbps
		3	300kbps
4	600kpbs

table 3

parameter name	Value
		TTT	80ms
Signal strength Signal	4db
		Load load	60%
Available Resources	40%

Step S504, the terminal evaluates the service according to the mobility parameter related to the service rate. For example, the service rate of the terminal 1 in the service rate evaluation time T is 305 kbps, according to the service rate condition in Table 1 (600 kbps>305 kpbs> 300 kbps), the terminal 1 evaluates to the medium traffic rate state;

Assume that the signal strength of network 2 is 7 db, the load is 50%, and the available resources are 50%;

Step S506, when the terminal 1 in the medium traffic rate state determines that one of the following conditions is met, the terminal 1 may perform handover from the network 1 to the network 2 or the flow to the network 2:

Condition 1: If the service rate-related mobility parameter only includes the service rate scale factor condition, when the delay timer TTT_1 of the measurement report reported by the medium service rate terminal times out, where TTT_1=normal rate TTT* medium service rate scale factor=80ms *1.5=120ms, the signal condition of the target network still meets the handover or flow migration conditions;

Condition 2: If the service rate-related mobility parameter only includes the service rate offset condition, when the terminal meets one of the following conditions or a combination,

1) The signal strength of the network 2 is higher than the signal strength of the handover/stream migration triggering the normal service rate terminal by a medium service rate signal threshold offset value; for example, the signal strength of the network 2 is 7db>4+1=5db;

2) The load of the network 2 is lower than the load of the normal traffic rate terminal for handover/stream migration, and the load of the network 2 is 50% <60%-2%;

The available resources of the network 2 are higher than the available resources that trigger the switching/streaming of the normal service rate terminal by a medium service rate available resource offset value; for example, the available resources of the network are 50%>30%+2%;

Condition 3: If the service rate-related mobility parameter includes the service rate scale factor condition and the service rate offset condition, when the medium service rate terminal reports the measurement report delay timer TTT_1 times out, where TTT_1=normal rate TTT* Medium service rate scale factor=80ms*1.5=120ms, when the terminal meets one of the following conditions or a combination,

1) The signal strength of the network 2 is higher than the signal strength of the handover/stream migration triggering the normal service rate terminal by a medium service rate signal threshold offset value; for example, the signal strength of the network 2 is 7db>4+1=5db;

2) The load of the network 2 is lower than the load of the normal traffic rate terminal for handover/stream migration, and the load of the network 2 is 50% <60%-2%;

3) The available resources of the network 2 are higher than the available resources for triggering the normal traffic rate terminal to perform handover/stream migration, and the available resource offset value of the medium service rate is 50%>30%+2%.

In step S506, if the source network is an LTE/3G/2G base station, and the target network is an LTE base station, a 3G or a 2G base station, the terminal may report the measurement report to the base station when the above conditions are met, and the base station performs a handover decision; The network is a WLAN base station, and the terminal can perform the flow migration decision on its own when the above conditions are met. Such as The source network is a WLAN base station, and regardless of whether the target network is an LTE base station, a 3G base station, a 2G, or a WLAN base station, the terminal performs the flow migration decision by itself when the above conditions are met.

The preferred embodiment is generally not used in a scenario where the signal condition of the current network does not satisfy the terminal camping or staying connected. For example, if the signal condition of the current network of the terminal becomes poor and cannot continue to serve the terminal, the terminal can ignore the service. Rate-dependent moving parameter conditions are handled in accordance with normal mobility conditions.

6 is a schematic diagram of a mobility optimization method for a high traffic rate terminal according to a preferred embodiment of the present invention. As shown in FIG. 6, the method includes:

Step S602, the terminal is in the network 1 and has obtained the mobility parameter related to the service rate from the network. Table 1, Table 2 and Table 3 are schematic diagrams of the values of the foregoing parameters, and the network can flexibly set the parameter value and notify the terminal;

In the preferred embodiment, the network 1 may be an LTE base station, a 3G base station, a 2G base station, or a WLAN base station;

In the preferred embodiment, the network 2 may be an LTE base station, a 3G base station, a 2G base station, or a WLAN base station;

Step S604, the terminal evaluates the service according to the mobility parameter related to the service rate. For example, the service rate of the terminal 1 in the service rate evaluation time T is 700 kbps, according to the service rate condition in Table 1 (700 kbps>600 kbps). Terminal 1 is evaluated as a high traffic rate state;

Assume that the signal strength of network 2 is 7 db, the load is 50%, and the available resources are 50%;

Step S606, when the terminal 1 in the high traffic rate state determines that one of the following conditions is met, the terminal 1 may perform handover from the network 1 to the network 2 or the flow to the network 2:

Condition 1: If the service rate-related mobility parameter only includes the service rate scale factor condition, when the delay timer TTT_1 of the measurement report reported by the high service rate terminal times out, where TTT_1=normal rate TTT* high service rate scale factor=80ms *2=160ms, the signal condition of the target network still meets the handover or flow migration conditions;

Condition 2: If the service rate-related mobility parameter only includes the service rate offset condition, when the terminal meets one of the following conditions or a combination,

1) The signal strength of the network 2 is higher than the signal strength of the handover/stream migration triggering the normal service rate terminal by a high service rate signal threshold offset value; for example, the signal strength of the network 2 is 7db>4+2=6db;

2) The load of the network 2 is lower than the load that triggers the switching/stream migration of the normal service rate terminal by a high service rate load offset value; for example, the load of the network 2 is 50% <60%-4%;

3) The available resources of the network 2 are higher than the available resources for triggering the normal service rate terminal to perform handover/stream migration, and the available resource offset value of the medium service rate is 50%>30%+4%;

Condition 3: If the service rate-related mobility parameter includes the service rate scale factor condition and the service rate offset condition, when the delay timer TTT_1 of the measurement report reported by the high service rate terminal times out, where TTT_1=normal rate TTT* Medium service rate scale factor=80ms*2=160ms, when the terminal meets one of the following conditions or a combination,

1) The signal strength of the network 2 is higher than the signal strength of the handover/stream migration triggering the normal service rate terminal by a high service rate signal threshold offset value; for example, the signal strength of the network 2 is 7db>4+2=6db;

2) The load of the network 2 is lower than the load that triggers the switching/stream migration of the normal service rate terminal by a high service rate load offset value; for example, the load of the network 2 is 50% <60%-4%;

3) The available resources of the network 2 are higher than the available resources that trigger the switching/streaming of the normal service rate terminal by a high service rate available resource offset value; for example, the available resources of the network are 50%>30%+4%.

In step S606, if the source network is an LTE/3G/2G base station, and the target network is an LTE base station, a 3G or a 2G base station, the terminal reports the measurement report to the base station when the condition is met, and the base station performs a handover decision; if the target network It is a WLAN base station, and the terminal performs a flow migration decision on its own when the above conditions are met. If the source network is a WLAN base station, regardless of whether the target network is an LTE base station, a 3G base station, a 2G, or a WLAN base station, the terminal performs the flow migration decision by itself when the above conditions are met.

The preferred embodiment is generally not used in a scenario where the signal condition of the current network does not satisfy the terminal camping or staying connected. For example, if the signal condition of the current network of the terminal becomes poor and cannot continue to serve the terminal, the terminal can ignore the service. Rate-dependent moving parameter conditions are handled in accordance with normal mobility conditions.

FIG. 7 is a schematic diagram of a method for not deactivating a service rate based mobility optimization according to a preferred embodiment of the present invention. As shown in FIG. 7, the method may include:

Step S702, the terminal is in the connected state on the network 1 and performs data service;

Step S704, if the signal of the terminal in the network 1 is deteriorated, the terminal does not perform the service rate state evaluation (including the use of the service rate-related parameter for the mobility parameter adjustment, etc.), but performs the handover or the flow migration evaluation according to the normal service rate parameter, for example, Performing mobility related operations according to measurement events such as A1-A6, B1-B2 defined in 3GPP TS36.331;

Step S706: When the terminal meets the handover or flow migration condition at the normal service rate, the terminal performs handover to the network 2 or performs flow migration to the network 2.

FIG. 8 is a schematic diagram of a traffic rate-based mobility optimization method according to a preferred embodiment of the present invention. As shown in FIG. 8, the method includes:

Step S802, the terminal is in the network 1 and has obtained the mobility parameter related to the service rate from the network. Table 1, Table 2 and Table 3 are schematic diagrams of the values of the foregoing parameters, and the network can flexibly set the parameter value and notify the terminal;

In the preferred embodiment, the network 1 may be an LTE base station, a 3G base station, a 2G base station, or a WLAN base station;

In the preferred embodiment, the network 2 may be an LTE base station, a 3G base station, a 2G base station, or a WLAN base station;

Step S804, the terminal evaluates the service according to the mobility parameter related to the service rate. For example, if the service rate of the terminal in the service rate evaluation time T is 700 kbps, according to the service rate condition in Table 1 (700 kbps>600 kpbs), The terminal evaluates to a high traffic rate state;

Assume that the signal strength of network 2 is 5 db (assuming that the network side only provides the signal threshold offset value);

In step S806, the terminal in the high service rate state does not meet the signal threshold offset condition, and the terminal will remain in the network 1, and specifically,

When the delay timer TTT_2 of the measurement report reported by the high service rate terminal times out, where TTT_2=normal TTT* high service rate scale factor=80ms*2=160ms, the signal strength of network 2 is smaller than the triggering normal service rate terminal for handover/flow The sum of the migrated signal strength and the high traffic rate signal threshold offset value; for example, the signal strength of the network 2 is 5db<4+2=6db;

Step S808, the terminal evaluates the service again according to the mobility parameter related to the service rate. For example, the service rate of the terminal in the service rate evaluation time T is 700 kbps, according to the service rate condition in Table 1 (700 kbps>600 kpbs). , the terminal evaluates to a high traffic rate state;

Assume that the signal strength of network 2 is 7db (assuming that the network side only provides the signal threshold offset value);

In step S810, the terminal in the high service rate state satisfies the signal threshold offset condition, and the terminal may perform the switchover from the network 1 to the network 2 or the flow to the network 2, which may specifically include:

When the delay timer TTT_2 of the measurement report reported by the high service rate terminal times out, where TTT_2=normal TTT* high service rate scale factor=80ms*2=160ms, the signal strength of network 2 is greater than the triggering normal service speed. The ratio of the signal strength of the handover/stream migration to the high traffic rate signal threshold offset value; for example, the signal strength of the network 2 is 7db>4+2=6db.

In step S810, if the source network is an LTE/3G/2G base station, and the target network is an LTE base station, a 3G or a 2G base station, the terminal may report the measurement report to the base station when the above condition is met, and the base station performs a handover decision; The network is a WLAN base station, and the terminal can perform the flow migration decision on its own when the above conditions are met. If the source network is a WLAN base station, regardless of whether the target network is an LTE base station, a 3G base station, a 2G, or a WLAN base station, the terminal performs the mobility migration decision when the above conditions are met.

In the preferred embodiment, if the network side only provides the load offset value or the available resource offset value, the processing method is similar to this embodiment. This embodiment describes that when the state of the target network (signal condition or load condition or available resource condition, etc.) does not meet the mobility parameter requirement corresponding to the service rate of the terminal, the handover from the source network to the target network or service migration may not be performed. .

The preferred embodiment is generally not used in a scenario where the signal condition of the current network does not satisfy the terminal camping or staying connected. For example, if the signal condition of the current network of the terminal is deteriorated and the terminal cannot be served, the terminal can ignore the service rate. Relevant mobile parameter conditions are handled in accordance with normal mobility conditions.

In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments.

In another embodiment, a storage medium is also provided, in which the above software is stored, including but not limited to an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the method and apparatus for handover/stream migration provided by the embodiments of the present invention have the following beneficial effects: the problem that the handover or the flow migration in the related art does not consider the current service rate of the terminal may cause the user experience to decrease, and Ensure that terminals at different rates perform handovers at the right time or migrate services to the appropriate target network to provide a better overall business experience for users.

Claims (10)

1. A method of switching/flow migration, comprising:

   Determining a service rate status of the terminal according to a terminal service rate and a preset threshold;

   Determining a condition parameter of the handover/flow migration according to the offset value and/or the scale factor related to the service rate state;

   Determining whether the terminal performs handover/stream migration according to the condition parameter.
2. The method according to claim 1, wherein determining the service rate status of the terminal according to the terminal service rate and the preset threshold comprises:

   Measuring an average value of the service rate of the terminal in a preset service rate evaluation time;

   If the average exceeds a high traffic rate threshold, determining that the terminal is in a high traffic rate state;

   If the average value exceeds the medium traffic rate threshold and does not exceed the high traffic rate threshold, it is determined that the terminal is in a medium traffic rate state.
3. The method according to claim 1 or 2, wherein determining the condition parameters of the handover/stream migration according to the service rate state related offset value and/or the scale factor comprises:

   Obtaining an offset value related to the service rate state; combining a preset handover/flow migration condition parameter with the offset value to obtain a current handover/flow migration condition parameter; and/or,

   Obtaining a scale factor related to the service rate state; combining a preset switch delay timer with the scale factor to obtain a current handover/flow transition switch delay timer.
4. The method of claim 3 wherein the offset value comprises at least one of: a signal threshold offset value, a load threshold offset value, an available resource threshold offset value.
5. The method according to claim 4, wherein combining the preset switching/flow migration condition parameter with the offset value to obtain a current handover/flow migration condition parameter comprises at least one of the following:

   In the case that the offset value is a signal threshold offset value, the preset switching/streaming signal threshold value is added to the signal threshold offset value to obtain a current switching/flow transition signal threshold. value;

   When the offset value is a load threshold offset value, the preset load/flow migration load threshold is subtracted from the load threshold offset value to obtain a current handover/flow migration load threshold. Value

   In the case that the offset value is an available resource threshold offset value, the available resource threshold value of the preset handover/stream migration is added to the available resource threshold offset value to obtain the current handover/flow migration. Available resource thresholds.
6. The method according to any one of claims 1 to 5, wherein determining the condition parameters of the handover/stream migration according to the service rate state-related offset value and/or scale factor comprises:

   In the case that the source network and/or the target network is a WLAN base station, the terminal determines a condition parameter of the flow migration according to the offset value and/or the scale factor related to the service rate state; or

   The base station acquires the measurement report reported by the terminal, and determines a condition parameter of the handover/flow migration according to the offset value and/or the scale factor related to the service rate state.
7. The method according to any one of claims 1 to 5, wherein determining the condition parameters of the handover/stream migration according to the service rate state-related offset value and/or scale factor comprises:

   Determining whether the signal condition of the current network can satisfy the terminal camping or maintaining the connection;

   If yes, the condition of the handover/stream migration is determined according to the offset value and/or the scale factor related to the service rate state. Otherwise, the handover/stream migration is performed according to the preset handover/flow migration condition parameter.
8. A device for switching/flow migration, located in a terminal, comprising:

   a first determining module, configured to determine a service rate state of the terminal according to a terminal service rate and a preset threshold;

   a second determining module, configured to determine a condition parameter of the switching/stream migration according to the offset value and/or the scale factor related to the service rate state;

   The first determining module is configured to determine, according to the condition parameter, whether the terminal performs handover/stream migration.
9. The apparatus of claim 8, wherein the first determining module comprises:

   a measuring unit, configured to measure an average value of a service rate of the terminal within a preset service rate evaluation time;

   a first determining unit, configured to determine that the terminal is in a high traffic rate state if the average value measured by the measuring unit exceeds a high traffic rate threshold;

   And a second determining unit, configured to determine that the terminal is in a medium traffic rate state if the average value measured by the measuring unit exceeds a medium traffic rate threshold and does not exceed the high traffic rate threshold.
10. A device for switching/flow migration, located in a base station, comprising:

    a receiving module, configured to receive a current service rate of the terminal;

    a third determining module, configured to determine a service rate state of the terminal according to the service rate and a preset threshold;

    a fourth determining module, configured to determine a condition parameter of the switching/flow migration according to the offset value and/or the scale factor related to the service rate state;

    The second determining module is configured to determine, according to the condition parameter, whether the terminal performs handover/stream migration.

Images