CN104284376B

CN104284376B - A kind of method, system and the equipment of carrying switching

Info

Publication number: CN104284376B
Application number: CN201310280984.9A
Authority: CN
Inventors: 侯云静; 周燕飞; 艾明; 张娟; 邓强
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2018-09-11
Anticipated expiration: 2033-07-05
Also published as: CN104284376A

Abstract

The present embodiments relate to wireless communication technology fields, more particularly to a kind of method, system and the equipment of carrying switching, when switching between different 3GPP accesses to solve UE existing in the prior art, network side can switch all carryings of UE, the problem of to increase signaling overheads.The method of the present invention includes：User equipment determines the access information for including destination access technologies and particular bearer, when wherein particular bearer is that the user equipment switches between progress 3G (Third Generation) Moblie standardization body 3GPP accesses, the carrying for being switched to the target access network using destination access technologies is needed；The determining access information is notified into network side equipment.Due to switching particular bearer when network side equipment of the embodiment of the present invention switches between the user equipment carries out 3GPP accesses, to reduce signaling overheads.

Description

A kind of method, system and the equipment of carrying switching

Technical field

The present invention relates to wireless communication technology field, more particularly to a kind of method, system and the equipment of carrying switching.

Background technology

3GPP（3rd Generation Partnership Project, 3G (Third Generation) Moblie standardization body）Access Refer to the Radio Access Network formed using the access technology that International Organization for standardization 3GPP is defined.3GPP TS23.401 To UE（User equipment）Switching between different 3GPP accesses is described in detail

WLAN（Wireless Local Area Network, WLAN）Access can be connect by S2a, S2b and S2c Mouth is connected to EPS（Evolved Packet System, evolved packet system）, mobile management that different interfaces uses association View is different, therefore by IP（Internet Protocol, Internet protocol）The mode that stream is moved to WLAN accesses is different, in detail IP stream moving process please refer to 3GPP TS23.402.

IFOM（IP Flow Mobility, IP flow mobilities）The IP streams realized between 3GPP accesses and WLAN accesses move Dynamic property includes the mobility and and PCC of seamless WLAN unloadings, IP streams between 3GPP accesses and WLAN accesses（Policy Control and Charging, policy control and charging）And ANDSF（Access Network Discovery and Selection Function, access network discovery and selection function）Interactive process.

For supporting the UE of a variety of access systems, network that can provide it the information of available wireless access system, this A function passes through the ANDSF in network（Access Network Discovery and Selection Function, access Net is found and selection function）It realizes.

In the prior art, UE switchings between different 3GPP accesses are determined and are initiated by source access device, right It is flowed higher than the IP of target 3GPP accesses in the priority for the WLAN accesses that ANDSF strategies show, target 3GPP has accessed side also It is assigned with transfer resource for this part IP streams.After UE is switched to target 3GPP accesses, UE can again will according to ANDSF strategies IP streams in this part are switched to WLAN accesses from target 3GPP accesses, and target 3GPP accesses side and needs to discharge it to be this in this process The transfer resource of part IP stream distribution, to increase signaling overheads.

In conclusion when UE switches between different 3GPP accesses at present, network side can switch all carryings of UE, from And increase signaling overheads.

Invention content

The present invention provides a kind of method, system and the equipment of carrying switching, exists to solve UE existing in the prior art When switching between different 3GPP accesses, network side can switch all carryings of UE, the problem of to increase signaling overheads.

A kind of method of carrying switching provided in an embodiment of the present invention, this method include：

User equipment determines the access information for including destination access technologies and particular bearer, and wherein particular bearer is the use Family equipment needs to be switched to and accesses skill using target when switching between carrying out 3G (Third Generation) Moblie standardization body 3GPP accesses The carrying of the target access network of art；

The determining access information is notified network side equipment by the user equipment, so that the network side equipment is in institute State user equipment carry out 3GPP accesses between switch when switch particular bearer.

Since user equipment of the embodiment of the present invention is by according to the access information of destination access technologies and particular bearer determination, lead to Network side equipment is known, so that the network side equipment switches specific hold when switching between the user equipment carries out 3GPP accesses It carries, wherein particular bearer is the user equipment when switching between carrying out 3GPP accesses, needs to be switched to using target access skill The carrying of the target access network of art, to reduce signaling overheads.

Preferably, the user equipment determines the carrying for participating in switching between 3GPP accesses according to following manner：

The user equipment selects a switching law from multiple switching laws；

For a destination access technologies, the user equipment is excellent according to the access technology in the switching law of selection First grade information, in the determining carrying with each IP streams of the Internet protocol IP stream description information matches in the switching law, It is switched to the particular bearer of the target access network when switching between 3GPP accesses, and will be flowed with the IP in the switching law The carrying of the unmatched each IP streams of description information is determined as particular bearer.

Since user equipment selects a switching law from multiple switching laws, and determined according to the switching law of selection The particular bearer of the target access network is switched to when switching between 3GPP accesses, to improve the accurate of determining particular bearer Property.

Preferably, before the user equipment determines the carrying for participating in switching between 3GPP accesses, further include：

The user equipment determines that the switching law of selection changes；Or

The carrying of the user equipment changes.

Since user equipment changes in the switching law for determining selection；Or the carrying of equipment change after determine ginseng The carrying switched between being accessed with 3GPP, so as to be timely updated to determining particular bearer.

Preferably, the determining access information is notified network side equipment by the user equipment, including：

The user equipment is by core net, the network side equipment that the determining access information is notified to be currently accessed； Or

Determining access information notice is currently accessed by the user equipment during report measurement information Network side equipment.

Since user equipment notifies the network side equipment being currently accessed by core net or report measurement information, to improve Efficiency.

Preferably, the network that the user equipment by core net, the determining access information is notified to be currently accessed Side apparatus, including：

Destination access technologies are the general land wireless network E-UTRAN of evolution, the user when switching between 3GPP accesses The access information is transferred to core net by equipment by non access stratum NAS message, and passes through S1- mobile management by core net The access information is notified the network side equipment that the user equipment is currently accessed by entity MME control messages；And/or

Destination access technologies are general land wireless network UTRAN or global mobile communication system when switching between 3GPP accesses The enhancing data transfer rate wireless access network GERAN of system/global system for mobile communications evolution, the user equipment will by NAS message The access information is transferred to core net, and the access information is passed through wireless access network application protocol RANAP by core net The network side equipment that user equipment described in message informing is currently accessed.

Due to the network side equipment that user equipment notifies to be currently accessed by core net, to improve efficiency.

Preferably, the access information includes：Destination access technologies and corresponding particular bearer.

Since access information includes：Destination access technologies and corresponding particular bearer, to improve efficiency.

Preferably, the user equipment further includes by after determining access information notice network side equipment：

Before the user equipment switches between carrying out 3GPP accesses, however, it is determined that have available wireless local area networks WLAN, and described Access information includes the destination access technologies switch between 3GPP accesses, is accessed with the target according in the access information The corresponding particular bearer of technology determines the carrying for being not involved in and switching between 3GPP accesses；

The user equipment will not participate in the carrying switched between 3GPP accesses during switching between carrying out 3GPP accesses The IP streams of transmission are moved to WLAN.

Since user equipment between carrying out 3GPP accesses during switching, the carrying switched between 3GPP accesses will not participate in The IP streams of transmission are moved to WLAN, to reduce signaling overheads.

The method of another carrying switching provided in an embodiment of the present invention, this method include：

Network side equipment receives the access information of user equipment, wherein the access information is the user equipment according to mesh Mark what access technology and particular bearer determined, the particular bearer is the user equipment when switching between carrying out 3GPP accesses, Need the carrying for being switched to the target access network using destination access technologies；

When the network side equipment switches between the user equipment carries out 3GPP accesses, determined according to the access information And switch particular bearer.

Since user equipment of the embodiment of the present invention is by according to the access information of destination access technologies and particular bearer determination, lead to Know that network side equipment, the network side equipment switch particular bearer when switching between the user equipment carries out 3GPP accesses, Middle particular bearer is the user equipment when switching between carrying out 3GPP accesses, needs to be switched to the mesh using destination access technologies Tag splice enters the carrying of network, to reduce signaling overheads.

Preferably, the network side equipment receives the access information of user equipment, including：

The network side equipment receives the access information of the user equipment by core net；Or

The network side equipment receives connecing for the user equipment during user equipment to report metrical information Enter information.

Since network side equipment is by core net or the access information of report measurement information reception user equipment, to reduce Signaling overheads.

Preferably, when the network side equipment switches between the user equipment carries out 3GPP accesses, according to the access Information is determining and switches particular bearer, including：

When the network side equipment switches between the user equipment carries out 3GPP accesses, according to the last use received The access information of family equipment determines and switches particular bearer.

Since network side equipment is according to the access information of the last user equipment received, determines and switch specific hold It carries, so as to be timely updated to determining particular bearer.

Since access information includes：Destination access technologies and corresponding particular bearer, to reduce signaling overheads.

Before the network side equipment switches between the user equipment carries out 3GPP accesses, however, it is determined that the user equipment has WLAN can be used, and the access information includes the destination access technologies switch between 3GPP accesses, carry out 3GPP accesses Between switch during, switch the particular bearer in the access information.

Since network side apparatus between carrying out 3GPP accesses during switching, switch in the access information specific holds It carries, to reduce signaling overheads.

The user equipment of carrying switching provided in an embodiment of the present invention, the user equipment include：

Determining module, for the determining access information for including destination access technologies and particular bearer, wherein particular bearer is The user equipment needs to be switched to the target access network using destination access technologies when switching between carrying out 3GPP accesses Carrying；

Notification module, for the access information determined to be notified network side equipment, so that the network side equipment exists Switch particular bearer when switching between the user equipment progress 3GPP accesses.

Preferably, the determining module determines the carrying for participating in switching between 3GPP accesses according to following manner：

A switching law is selected from multiple switching laws；For a destination access technologies, according to selection Access technology precedence information in switching law determines each IP with the IP stream description information matches in the switching law In the carrying of stream, the particular bearer of the target access network is switched to when switching between 3GPP accesses, and will be with the switching The carrying of the unmatched each IP streams of IP stream description information in rule is determined as particular bearer.

Preferably, the determining module is additionally operable to：

Determine that the switching law of selection changes；Or after carrying changes, switch between determining participation 3GPP accesses Carrying.

Preferably, the notification module is specifically used for：

By core net, the network side equipment that the determining access information is notified to be currently accessed；Or in reporting measurement During information, network side equipment that the determining access information is notified to be currently accessed.

Preferably, the notification module is specifically used for：

Destination access technologies are E-UTRAN when switching between 3GPP accesses, are transferred to the access information by NAS message Core net, and the access information is notified by net that the user equipment is currently accessed by S1-MME control messages by core net Network side apparatus；And/or

Destination access technologies are UTRAN or GERAN when switching between 3GPP accesses, by NAS message by the access information It is transferred to core net, and be currently accessed the access information by user equipment described in RANAP message informings by core net Network side equipment.

Preferably, the determining module is additionally operable to：

After determining access information notice network side equipment, before switching between carrying out 3GPP accesses, however, it is determined that There is available WLAN, and the access information includes the destination access technologies switch between 3GPP accesses, according to the access Particular bearer corresponding with the destination access technologies in information determines the carrying for being not involved in and switching between 3GPP accesses；Carry out During switching between 3GPP accesses, the IP streams that will not participate in the carrying transmission switched between 3GPP accesses are moved to WLAN.

A kind of network side equipment of carrying switching provided in an embodiment of the present invention, including：

Receiving module, the access information for receiving user equipment, wherein the access information is the user equipment root It is determined according to destination access technologies and particular bearer, the particular bearer is that the user equipment switches between carrying out 3GPP accesses When, need the carrying for being switched to the target access network using destination access technologies；

Processing module determines when for switching between carrying out 3GPP accesses in the user equipment according to the access information And switch particular bearer.

Preferably, the receiving module is specifically used for：

The access information of the user equipment is received by core net；Or the mistake in the user equipment to report metrical information The access information of the user equipment is received in journey.

Since network side equipment is by core net or the access information of report measurement information reception user equipment, to improve Efficiency.

Preferably, the processing module is specifically used for：

When switching between the user equipment carries out 3GPP accesses, the access of the user equipment received according to the last time is believed Breath determines and switches particular bearer.

Preferably, the processing module is specifically used for：

Before switching between the user equipment carries out 3GPP accesses, however, it is determined that the user equipment has available WLAN, and institute It includes the destination access technologies switch between 3GPP accesses, the process switched between carrying out 3GPP accesses to state access information In, switch the particular bearer in the access information.

A kind of system of carrying switching provided in an embodiment of the present invention, the system include：

User equipment, for the determining access information for including destination access technologies and particular bearer, wherein particular bearer is The user equipment needs to be switched to the target access network using destination access technologies when switching between carrying out 3GPP accesses Carrying；The determining access information is notified into network side equipment；

Network side equipment, the access information for receiving user equipment in the user equipment cut between 3GPP accesses When changing, according to access information determination and switch particular bearer.

Description of the drawings

Fig. 1 is the system structure diagram of carrying switching of the embodiment of the present invention；

Fig. 2A is the structural schematic diagram of the first user equipment in the system that carrying of the embodiment of the present invention switches；

Fig. 2 B are the structural schematic diagram of second of user equipment in the system that carrying of the embodiment of the present invention switches；

Fig. 3 A are the structural schematic diagram of the first network side equipment in the system that carrying of the embodiment of the present invention switches；

Fig. 3 B are the structural schematic diagram of second of network side equipment in the system that carrying of the embodiment of the present invention switches；

Fig. 4 is the method flow schematic diagram of user device transmissions access information of the embodiment of the present invention；

Fig. 5 is the method flow schematic diagram of network side equipment of embodiment of the present invention carrying switching.

Specific implementation mode

User equipment of the embodiment of the present invention notifies net by according to the access information of destination access technologies and particular bearer determination Network side apparatus, so that network side equipment switches particular bearer when switching between user equipment carries out 3GPP accesses, wherein specific hold Load is user equipment when switching between carrying out 3GPP accesses, needs to be switched to the target access network using destination access technologies Carrying, to reduce signaling overheads.

As shown in Figure 1, the system of carrying switching of the embodiment of the present invention includes：User equipment 10 and network side equipment 20.

User equipment 10, for determining the access information for including destination access technologies and particular bearer, wherein particular bearer It is user equipment when switching between carrying out 3GPP accesses, needs to be switched to and be held using the target access network of destination access technologies It carries, determining access information is notified into network side equipment；

Network side equipment 20, the access information for receiving user equipment；In user equipment between 3GPP accesses switch When, according to access information determination and switch particular bearer.

Wherein, user equipment can determine the carrying for participating in switching between 3GPP accesses according to following manner：

User equipment selects a switching law from multiple switching laws；

For a destination access technologies, user equipment is believed according to the access technology priority in the switching law of selection Breath determines with the carrying of each IP of the IP stream description information matches in switching law streams, switches when switching between 3GPP accesses To the particular bearer of target access network, and will be held with what the unmatched each IP of IP stream description information in switching law flowed Load is determined as particular bearer.

In force, it flows, will own with the unmatched IP of IP stream description information in switching law if user equipment has The carrying of unmatched IP streams is determined as particular bearer.

It is flowed with the IP of the IP stream description information matches in switching law if user equipment has, according to the switching law of selection In access technology precedence information, from matched IP flow carrying in determine particular bearer.

Since one carries and may correspond to multiple IP stream, as long as being flowed for an IP, this is carried as particular bearer, just really The fixed carrying needs to be switched to target access network.

For example carrying 1 corresponds to IP and flows 1 and IP and flows 2, IP streams 1 and the IP stream description information matches in switching law, but root The carrying of IP streams 1 is determined according to access technology precedence information, that is, it is not particular bearer to carry 1；IP stream 2 be in switching law The unmatched IP streams of IP stream description information, the carrying of IP streams 2, that is, it is particular bearer to carry 1.Since carrying 1 is special for IP streams 2 Fixed carrying, although not being particular bearer for IP streams 1, it is particular bearer to be also considered as carrying 1 at this time.

For the corresponding all IP streams of carrying 1, all determines that carrying 1 is not particular bearer, determine that carrying 1 need not be cut at this time Change to target access network.

For the corresponding all IP streams of carrying 1, all determines that carrying 1 is particular bearer, determine that carrying 1 needs to be switched at this time Target access network.

Wherein, switching law here can be the ISRP rules in ANDSF strategies；Can also be other include that IP streams are retouched State the rule of information and access technology precedence information.

In force, network side or advance for the multiple switching laws of user device configuration.User equipment needs are cut from multiple Change one switching law of selection in rule.

In force, user equipment can in sequence or random selection.Preferably, user equipment can be according to current Position and/or selection of time.

By taking ISRP rules as an example：

ISRP rules include IP stream description information, regular condition for validity（Regular active position and/or regular effective time）, Preferred access network network（That is the access technology precedence information of the embodiment of the present invention, is referred to as routing rule）And rule precedence Grade.

Meet the condition for validity of one or more ISRP rules when the current position of user equipment and/or current time When, user equipment selects the highest ISRP rules of a rule prioritization according to rule prioritization.

It may refer to according to the particular content of the current position of user equipment and/or current selection of time ISRP rules 3GPP TS24.312 agreements, details are not described herein.

Access technology precedence information in switching law includes access technology and access technology priority.

Wherein access technology includes but not limited to GERAN（GSM EDGE Radio Access Network；GSM/EDGE Wireless access network；GSM, Global System for Mobile Communications；Global system for mobile communications；EDGE, The enhancing data transfer rate of Enhanced Data rates for GSM Evolution, GSM evolution）, UTRAN（Universal Terrestrial Radio Access Network, general land wireless network）, E-UTRAN（Evolved Universal Terrestrial Radio Access Network, the general land wireless network of evolution）And WLAN.When access technology is When WLAN, access technology precedence information there is also the first access mark and the second access identifies, wherein the first access mark Can be the SSID of wlan network（Service set）, the second access mark can be the HESSID of wlan network（Homogeneity extension Service set）.What access technology precedence information represented is the priority of the access technology in preferred access network network.

The GERAN networks of the embodiment of the present invention are the networks using GERAN technologies；The UTRAN networks of the embodiment of the present invention It is the network using UTRAN technologies；The E-UTRAN networks of the embodiment of the present invention are the networks using E-UTRAN technologies.

In force, user equipment can determine the carrying for participating in switching between 3GPP accesses with the period, and generate access information Notify network side equipment；

After user equipment can also change in the switching law for determining selection or the carrying of user equipment changes It determines the carrying for participating in switching between 3GPP accesses, and generates access information notice network side equipment.

Correspondingly, when network side equipment switches between user equipment carries out 3GPP accesses, according to the last use received The access information of family equipment determines and switches particular bearer.

Wherein, user equipment notifies determining access information there are many kinds of the modes of network side equipment, to be set forth below several Kind：

Mode one, user equipment are by core net, the network side equipment that determining access information is notified to be currently accessed；Phase It answers, network side equipment receives the access information of user equipment by core net.

In method one, user equipment passes through NAS（Non Access Stratum, Non-Access Stratum）Message sends out the information The controlled entity of network side is given, the controlled entity of network side stores the information in the context of user equipment, then should Information is sent to the access device that UE is currently accessed（That is network side equipment）.This method needs to extend NAS message and in network The control message transmitted between side controlled entity and network side equipment carries access information in these message.

Specifically, destination access technologies are E-UTRAN when switching between 3GPP accesses, user equipment will be connect by NAS message Enter information and be transferred to core net, and is currently accessed access information notifying user equipment by S1-MME control messages by core net Network side equipment；And/or

Destination access technologies are UTRAN or GERAN when switching between 3GPP accesses, and user equipment will be accessed by NAS message Information is transferred to core net, and access information is passed through RANAP by core net（RAN Application Protocol, RAN are answered Use agreement；RAN, Radio Access Network, wireless access network）The network side that message informing user equipment is currently accessed is set It is standby.

Determining access information notice is currently accessed by mode two, user equipment during report measurement information Network side equipment；

Correspondingly, network side equipment receives the access letter of user equipment during reporting metrical information on a user device Breath.

When user equipment to report metrical information, user equipment sends that information to currently used access device.It should Method needs to extend MEASUREMENT REPORT（Measurement report）Message

Wherein, access information includes：Destination access technologies and corresponding particular bearer.

In force, it when network side equipment switches between user equipment carries out 3GPP accesses, is determined simultaneously according to access information When switching particular bearer,

In force, network side equipment obtains according to destination access technologies and the access information being locally stored and participates in this The carrying switched between secondary across 3GPP access.

Switch between the participation 3GPP accesses comprising UE in the transparent vessel that network side equipment is sent to target network side apparatus Carrying information；

After network side equipment decision will switch, network side equipment is to source mobility management entity（Such as MME or SGSN （Serving GPRS Support Node, Serving GPRS Support Node；GPRS, General Packet Radio Service, General Packet Radio Service））Switching request message is sent, is switched between increase participation 3GPP accesses within the message Carry list.

After source mobility management entity receives switching request message, cut according between the participation 3GPP accesses in message Which need the carrying of UE being switched to target 3GPP accesses known to the carrying list changed.Source mobility management entity is moved to target When mobility management entity sends request message, carrying user equipment needs the carrying for being switched to target 3GPP accesses in message Place and be in the PDN of active state in source（Packet Data Network, Packet Data Network）The information of connection.

Preferably, between network side equipment needs execution 3GPP accesses according to the decision of the metrical information of user equipment to report Switching when, network side equipment user equipment carry out 3GPP accesses between switch before, however, it is determined that user equipment has available WLAN, and Access information includes the destination access technologies switch between 3GPP accesses, during switching between carrying out 3GPP accesses, Switch the particular bearer in access information.

It, can be according to the letter of user equipment offer when network side equipment judges whether to have available WLAN around user equipment Breath is judged, such as user equipment reports process to show whether there is available wlan network around it by measuring.

If not including the destination access technologies between 3GPP accesses switch or user equipment in access information not having WLAN, network side equipment can be used to execute the process switched between normal 3GPP accesses, all carryings of user equipment are all cut Change to target 3GPP accesses.

Correspondingly, when user equipment receives switching command, however, it is determined that have an available WLAN, and access information include into The destination access technologies switched between row 3GPP accesses, according to particular bearer corresponding with destination access technologies in access information, really Surely it is not involved in the carrying switched between 3GPP accesses；Between carrying out 3GPP accesses switch during, will not participate in 3GPP access between The IP streams of the carrying transmission of switching are moved to WLAN.

If it does not include cut between 3GPP accesses in available wlan network or access information not have around user equipment The destination access technologies changed, user equipment do not execute IP stream moving process, only carry out the process switched between normal 3GPP accesses.

The network side equipment of the embodiment of the present invention can be access device, base station（Such as macro base station, evolution base station, family Base station etc.）, can also be RN（Relaying）Equipment can also be other network side equipments.

Below by specific embodiment, the present invention will be described.

Embodiment one（For the embodiment of " UE obtains the information for the carrying for participating in switching between 3GPP accesses "）：

E-UTRAN, UTRAN, GERAN are the access technologies that standardization body 3GPP is defined.Access net currently used UE The access technology of network is E-UTRAN, and UE currently has IP streams 1, IP to flow 2 and IP streams 3, and wherein IP flows 1 and IP streams 2 and passed by carrying 1 Defeated, IP streams 3 pass through 2 transmission of carrying.

ANDSF strategies in UE include multiple ISRP rules, and UE selects an ISRP rule, wherein the ISRP rules selected Show that the priority that the priority that the priority that the priority of E-UTRAN is 1, UTRAN is 2, WLAN is 3, GERAN is 4.1 is Maximum, 4 be minimum.

UE matches the IP stream description information in the IP streams of current transmission and the ISRP rules of selection, learns that IP flows 1 and IP streams 3 With the IP stream description information match of the strategy.UE judges to cut when UE is switched to different target 3GPP accesses according to above- mentioned information When changing, the information for the carrying for participating in switching is needed.Specific deterministic process is as follows：

If being switched to UTRAN, the information that UE is obtained and IP stream descriptions information match and unmatched IP flow, and according to Different IP streams execute different operations：

IP streams with the IP stream description information match in the ISRP rules of selection include that IP flows 1 and IP streams 3, and then UE sentences Disconnected whether flow these IP from E-UTRAN is switched to UTRAN, and specific deterministic process is：

According to the priority of the ISRP rules UTRAN of selection be higher than WLAN, so this part IP stream need participate in from The handoff procedure of E-UTRAN to UTRAN.

Then UE obtains the carrying information for transmitting above-mentioned IP streams：Transmission IP streams 1 are carried as carrying 1, and transmission IP streams 3 are held It carries as carrying 2.So if UE is switched to UTRAN from E-UTRAN, carrying 1 and carrying 2 need to participate in the handoff procedure.

It is that IP flows 2 with the unmatched IP streams of IP stream description information in the ISRP rules that select, transmits what this part IP flowed Carrying needs to be switched to target 3GPP accesses.Carrying 1 is carried as due to transmission IP streams 2, so carrying 1 needs to participate in from E- The handoff procedure of UTRAN to UTRAN.

UE participates in being carried as carrying 1 and holding for this time switching as described above, if being switched to UTRAN from E-UTRAN Carry 2.

If being switched to GERAN, the information that UE is obtained and IP stream descriptions information match and unmatched IP flow, and according to Different IP streams execute different operations：

IP streams with the IP stream description information match in the ISRP rules of selection include that IP flows 1 and IP streams 3, and then UE sentences Disconnected whether flow these IP from E-UTRAN is switched to GERAN, and specific deterministic process is：

It is less than WLAN according to the priority of the ISRP rules GERAN of selection, so this part IP streams need not participate in Handoff procedure from E-UTRAN to GERAN.

It is that IP flows 2 with the unmatched IP streams of IP stream description information in the ISRP rules that select, transmits what this part IP flowed Carrying needs to be switched to target 3GPP accesses.Carrying 1 is carried as due to transmission IP streams 2, so carrying 1 needs to participate in from E- The handoff procedure of UTRAN to GERAN.

For UE as described above, if being switched to GERAN from E-UTRAN, participate in this time switching is carried as carrying 1.

UE is according to above-mentioned judging result, in locally store information：

1、<UTRAN, carrying 1, carrying 2>；

2、<GERAN, carrying 1>.

When UE receives the switching command message of eNB transmissions, UE according to the destination access technologies in switching command message, The process that acquisition is not involved in the carrying switched between 3GPP accesses is as follows：

If destination access technologies are UTRAN, UE is according to the information being locally stored it is found that participating in from E-UTRAN to UTRAN Switching is carried as carrying 1 and carrying 2, and this 2 carryings are only 2 carryings of current UE, and this 2 carryings all need It is switched to UTRAN, so only carrying out the process switched between normally across 3GPP access under the scene.

If destination access technologies are GERAN, UE is according to the information being locally stored it is found that participating in from E-UTRAN to GERAN Switching is carried as carrying 1.Due to UE currently establish be carried as carrying 1 and carrying 2, so be not involved in from E-UTRAN to GERAN switchings are carried as carrying 2, and UE currently will be switched to WLAN accesses by the IP streams of 2 transmission of carrying.

Embodiment two（For the implementation of " information for participating in the carrying switched between 3GPP is accessed is sent to access device by UE " Example）：

UE is currently transmitting IP and is flowing 1, IP stream 2, IP, 3, IP of stream streams 4, transmitting the carrying of these IP streams in E-UTRAN 1 is respectively carried, carrying 2, carrying 3 carries 4.UE is according to the phase in ANDSF strategies between each 3GPP access technologies and WLAN To, when UE is switched to UTRAN, carrying 1, carrying 3 participates in switching known to priority, when UE is switched to GERAN, carrying 2 participates in Switching.It introduces and switches between the 2 kinds of methods of UE through the invention are accessed to the participation 3GPP of access device offer UE separately below Carrying information process.

Method one：

UE can carry the information for the carrying for participating in switching between 3GPP accesses, MME in different NAS messages （Mobility Management Entity, mobility management entity）After receiving the information, deposited in the context of UE The information is stored up, eNB is then sent that information to by S1-MME control messages.Below only by attaching process, tracking area more New process and service request process illustrate during these, need which NAS message and S1-MME control messages extended, It realizes and the information for participating in the carrying switched between 3GPP accesses is sent to eNB.

1, in attaching process, UE carries information in attach request message（<UTRAN, carrying 1, carrying 3>,< GERAN, carrying 2>）.MME receives attach request（Attach request）After message, MME is stored in the context of UE （<UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）.MME sends Initial Context Setup Request to eNB （Initial context establishes request）When message, MME carries information within the message（<UTRAN, carrying 1, carrying 3>,<GERAN, Carrying 2>）.ENB stores the information in the context of UE.

2, during tracing section updating, UE is in TAU（Tracking Area Update, tracing section updating）request Information is carried in message（<UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）, MME receive TAU request message it Afterwards, MME is stored in the context of UE（<UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）.MME is sent to eNB When DOWNLINK NAS TRANSPORT message, MME carries information within the message（<UTRAN, carrying 1, carrying 3>,< GERAN, carrying 2>）.ENB stores the information in the context of UE.

3, during service request, UE carries information in service request message（<UTRAN, carrying 1, holds Carry 3>,<GERAN, carrying 2>）, after MME receives service request message, MME is stored in the context of UE（< UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）.MME sends Initial Context Setup Request to eNB and disappears When breath, MME carries information within the message（<UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）.Contexts of the eNB in UE Middle storage information.

Method two：

UE obtains information according to ANDSF strategies（<UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）Later, due to UE It is periodic to eNB report measurement informations, so UE waits for the time of report measurement information after obtaining above- mentioned information, when When UE sends MEASUREMENT REPORT message to eNB, UE carries information within the message（<UTRAN, carrying 1, carrying 3>, <GERAN, carrying 2>）.After eNB receives MEASUREMENT REPORT message, eNB stores information in the context of UE （<UTRAN, carrying 1, carrying 3>,<GERAN, carrying 2>）.

Embodiment three（For the embodiment of " UE updates participate in the information of the carrying switched between 3GPP accesses "）

Scene based on embodiment two：UE is currently transmitting IP and is flowing 1, IP stream 2, IP, 3, IP of stream streams 4 in E-UTRAN, The carrying for transmitting these IP streams is respectively to carry 1, and carrying 2 carries 3, carrying 4.

The ANDSF strategies in UE are updated due to network so that the priority between GERAN and WLAN changes, therefore When UE is switched to GERAN, carrying 2 is also required to be switched to GERAN.Therefore UE needs the participation 3GPP that will be stored in network to connect The information of the carrying switched between entering is revised as（<UTRAN, carrying 1, carrying 3>）.Introduce separately below UE through the invention 2 The process of the information of the carrying switched between the participation 3GPP accesses of the UE of kind method update network side entity storage.

Method one：

Since available NAS message is more（Except attach request message）, only pass through tracing section updating mistake below Journey illustrates how the information of the carrying switched between the participations 3GPP of the UE stored in update MME and eNB is accessed.

During tracing section updating, new participation 3GPP accesses are carried in the TAU request message that UE is sent to MME Between the information of carrying that switches.UE carries information in TAU request message（<UTRAN, carrying 1, carrying 3>）, MME receptions To after TAU request message, the letter of the carrying switched between the participation 3GPP accesses stored in the context of MME updates UE Breath, i.e.,（<UTRAN, carrying 1, carrying 3>）.When MME sends DOWNLINK NAS TRANSPORT message to eNB, MME is at this Information is carried in message（<UTRAN, carrying 1, carrying 3>）.The information stored in the context of eNB updates UE.

Method two：

UE obtains information according to ANDSF strategies（<UTRAN, carrying 1, carrying 3>）Later, since UE is to eNB reporting measurements Information is periodic, so UE waits for the time of report measurement information after obtaining above- mentioned information, when UE is sent to eNB When MEASUREMENT REPORT message, UE carries information within the message（<UTRAN, carrying 1, carrying 3>）.ENB is received After MEASUREMENT REPORT message, the information that stores in the context of eNB updates UE.

As shown in Figure 2 A, the first user equipment in the system of carrying of embodiment of the present invention switching includes：Determining module 21 and notification module 22.

Determining module 21, for determining the access information for including destination access technologies and particular bearer, wherein particular bearer It is user equipment when switching between carrying out 3GPP accesses, needs to be switched to and be held using the target access network of destination access technologies It carries；

Notification module 22, for the access information determined to be notified network side equipment, so that network side equipment is set in user Switch particular bearer when switching between standby progress 3GPP accesses.

Preferably, determining module 21 determines the carrying for participating in switching between 3GPP accesses according to following manner：

A switching law is selected from multiple switching laws；For a destination access technologies, according to the switching of selection Access technology precedence information in rule determines the carrying with each IP of the IP stream description information matches in switching law streams In, be switched to the particular bearer of target access network when switching between 3GPP accesses, and by with the IP stream descriptions in switching law The carrying of the unmatched each IP streams of information is determined as particular bearer.

Preferably, determining module 21 is specifically used for：Determine that the switching law of selection changes；Or carrying changes Afterwards, the carrying for participating in switching between 3GPP accesses is determined.

Preferably, notification module 22 is specifically used for：

By core net, the network side equipment that determining access information is notified to be currently accessed；Or in report measurement information During, network side equipment that determining access information is notified to be currently accessed.

Preferably, notification module 22 is specifically used for：

Destination access technologies are E-UTRAN when switching between 3GPP accesses, and access information is transferred to core by NAS message Net, and the network side equipment for being currently accessed access information notifying user equipment by S1-MME control messages by core net；With/ Or

Destination access technologies are UTRAN or GERAN when switching between 3GPP accesses, are transmitted access information by NAS message To core net, and the network side equipment for being currently accessed access information by RANAP message informing user equipmenies by core net.

Preferably, access information includes：Destination access technologies and corresponding particular bearer.

Preferably, determining module 21 is additionally operable to：

After determining access information notice network side equipment, before switching between carrying out 3GPP accesses, however, it is determined that having can With WLAN, and access information includes the destination access technologies switch between 3GPP accesses, according in access information with the mesh The corresponding particular bearer of access technology is marked, determines the carrying for being not involved in and switching between 3GPP accesses；Switch between carrying out 3GPP accesses During, the IP streams that will not participate in the carrying transmission switched between 3GPP accesses are moved to WLAN.

As shown in Figure 2 B, second of user equipment in the system of carrying of embodiment of the present invention switching includes：First processing Device 23 and transmitter 24.

First processor 23, for determining the access information for including destination access technologies and particular bearer, wherein specific hold Load is user equipment when switching between carrying out 3GPP accesses, needs to be switched to the target access network using destination access technologies Carrying；

Transmitter 24, for the access information determined to be notified network side equipment, so that network side equipment is in user equipment Switch particular bearer when switching between progress 3GPP accesses.

Preferably, first processor 23 determines the carrying for participating in switching between 3GPP accesses according to following manner：

Preferably, first processor 23 is specifically used for：Determine that the switching law of selection changes；Or carrying changes Afterwards, the carrying for participating in switching between 3GPP accesses is determined.

Preferably, transmitter 24 is specifically used for：

Preferably, first processor 23 is additionally operable to：

As shown in Figure 3A, the first network side equipment includes in the system of carrying of embodiment of the present invention switching：Receiving module 31 and processing module 32.

Receiving module 31, the access information for receiving user equipment, wherein access information are user equipmenies according to target What access technology and particular bearer determined, particular bearer is user equipment when switching between carrying out 3GPP accesses, needs to be switched to Use the carrying of the target access network of destination access technologies；

Processing module 32 according to access information determination and switches when for switching between carrying out 3GPP accesses in user equipment Particular bearer.

Preferably, receiving module 31 is specifically used for：

The access information of user equipment is received by core net；Or it is received during reporting metrical information on a user device The access information of user equipment.

Preferably, processing module 32 is specifically used for：

When switching between user equipment carries out 3GPP accesses, according to the access information of user equipment that the last time receives, It determines and switches particular bearer.

Preferably, processing module 32 is specifically used for：

Before switching between user equipment carries out 3GPP accesses, however, it is determined that user equipment has available WLAN, and in access information Including the destination access technologies switch between 3GPP accesses, during switching between carrying out 3GPP accesses, switching access letter Particular bearer in breath.

As shown in Figure 3B, second of network side equipment includes in the system of carrying of embodiment of the present invention switching：Receiver 33 With second processor 34

Receiver 33, the access information for receiving user equipment, wherein access information are that user equipment connects according to target Enter what technology and particular bearer determined, particular bearer is user equipment when switching between carrying out 3GPP accesses, and needing to be switched to makes With the carrying of the target access network of destination access technologies；

Second processor 34 according to access information determination and is cut when for switching between carrying out 3GPP accesses in user equipment Change particular bearer.

Preferably, receiver 33 is specifically used for：

Preferably, second processor 34 is specifically used for：

Based on same inventive concept, a kind of method of user device transmissions access information is additionally provided in the embodiment of the present invention With the method for network side equipment carrying switching, the system switched with carrying of the embodiment of the present invention due to the principle that method solves the problems, such as Similar, because the implementation of the method may refer to the implementation of system, overlaps will not be repeated.

As shown in figure 4, the method for user device transmissions access information of the embodiment of the present invention includes：

Step 401, user equipment determine the access information for including destination access technologies and particular bearer, wherein particular bearer It is user equipment when switching between carrying out 3GPP accesses, needs to be switched to and be held using the target access network of destination access technologies It carries；

Determining access information is notified network side equipment by step 402, user equipment, so that network side equipment is set in user Switch particular bearer when switching between standby progress 3GPP accesses.

Preferably, user equipment determines the carrying for participating in switching between 3GPP accesses according to following manner：

User equipment selects a switching law from multiple switching laws；

Preferably, before user equipment determines the carrying for participating in switching between 3GPP accesses, further include：

User equipment determines that the switching law of selection changes；Or

The carrying of user equipment changes.

Preferably, determining access information is notified network side equipment by user equipment, including：

User equipment is by core net, the network side equipment that determining access information is notified to be currently accessed；Or

User equipment sets the network side that determining access information notice is currently accessed during report measurement information It is standby.

Preferably, user equipment, by core net, the network side equipment that determining access information is notified to be currently accessed wraps It includes：

Destination access technologies are E-UTRAN when switching between 3GPP accesses, and user equipment is passed access information by NAS message Be defeated by core net, and the network side for access information notifying user equipment being currently accessed by S1-MME control messages by core net Equipment；And/or

Destination access technologies are UTRAN or GERAN when switching between 3GPP accesses, and user equipment will be accessed by NAS message Information is transferred to core net, and the network for being currently accessed access information by RANAP message informing user equipmenies by core net Side apparatus.

Preferably, user equipment further includes by after determining access information notice network side equipment：

Before user equipment switches between carrying out 3GPP accesses, however, it is determined that have available WLAN, and access information includes carrying out The destination access technologies switched between 3GPP accesses, according to particular bearer corresponding with the destination access technologies in access information, really Surely it is not involved in the carrying switched between 3GPP accesses；

User equipment will not participate in the carrying transmission switched between 3GPP accesses during switching between carrying out 3GPP accesses IP streams be moved to WLAN.

As shown in figure 5, the method for network side equipment of embodiment of the present invention carrying switching includes the following steps：

Step 501, network side equipment receive the access information of user equipment, and wherein access information is user equipment according to mesh Mark what access technology and particular bearer determined, particular bearer is user equipment when switching between carrying out 3GPP accesses, needs to switch To the carrying for the target access network for using destination access technologies；

When step 502, network side equipment switch between user equipment carries out 3GPP accesses, according to access information determination and cut Change particular bearer.

Preferably, network side equipment receives the access information of user equipment, including：

Network side equipment receives the access information of user equipment by core net；Or

Network side equipment receives the access information of user equipment during reporting metrical information on a user device.

Preferably, when network side equipment switches between user equipment carries out 3GPP accesses, according to access information determination and cut Particular bearer is changed, including：

When network side equipment switches between user equipment carries out 3GPP accesses, according to the last user equipment received Access information determines and switches particular bearer.

Before network side equipment switches between user equipment carries out 3GPP accesses, however, it is determined that user equipment has available WLAN, and Access information includes the destination access technologies switch between 3GPP accesses, during switching between carrying out 3GPP accesses, Switch the particular bearer in access information.

Wherein, Fig. 4 and Fig. 5 can synthesize a flow, the method for forming a carrying switching first carries out step 401 With step 402, then step 501 and step 502 are executed.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program of upper implementation produces The form of product.

The present invention be with reference to according to the method for the embodiment of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of method of carrying switching, which is characterized in that this method includes：

User equipment determines the access information for including destination access technologies and particular bearer, and wherein particular bearer is that the user sets For when between carrying out 3G (Third Generation) Moblie standardization body 3GPP accesses switching, need to be switched to using destination access technologies The carrying of target access network；

The determining access information is notified network side equipment by the user equipment, so that the network side equipment is in the use Switch particular bearer when switching between the equipment progress 3GPP accesses of family.

2. the method as described in claim 1, which is characterized in that the user equipment determines that participating in 3GPP connects according to following manner The carrying switched between entering：

The user equipment selects a switching law from multiple switching laws；

For a destination access technologies, the user equipment is according to the access technology priority in the switching law of selection Information determines in the carrying flowed with each IP of the Internet protocol IP stream description information matches in the switching law, 3GPP Be switched to the particular bearer of the target access network when switching between access, and by with the IP stream descriptions in the switching law The carrying of the unmatched each IP streams of information is determined as particular bearer.

3. method as claimed in claim 2, which is characterized in that the user equipment determination participated in switching between 3GPP is accessed holds Before load, further include：

The user equipment determines that the switching law of selection changes；Or

The carrying of the user equipment changes.

4. the method as described in claim 1, which is characterized in that the determining access information is notified net by the user equipment Network side apparatus, including：

The user equipment is by core net, the network side equipment that the determining access information is notified to be currently accessed；Or

The user equipment is during report measurement information, network that the determining access information is notified to be currently accessed Side apparatus.

5. method as claimed in claim 4, which is characterized in that the user equipment by core net, will be determining described in connect Enter information and notifies the network side equipment being currently accessed, including：

Destination access technologies are the general land wireless network E-UTRAN of evolution, the user equipment when switching between 3GPP accesses The access information is transferred to core net by non access stratum NAS message, and S1- mobility management entity is passed through by core net The access information is notified the network side equipment that the user equipment is currently accessed by MME control messages；And/or

Destination access technologies are general land wireless network UTRAN or global system for mobile communications/full when switching between 3GPP accesses The enhancing data transfer rate wireless access network GERAN of ball mobile communication system evolution, the user equipment are connect by NAS message by described Enter information and be transferred to core net, and is led to the access information by wireless access network application protocol RANAP message by core net Know the network side equipment that the user equipment is currently accessed.

6. the method as described in Claims 1 to 5 is any, which is characterized in that the access information includes：Destination access technologies and Corresponding particular bearer.

7. method as claimed in claim 6, which is characterized in that the determining access information is notified net by the user equipment After network side apparatus, further include：

Before the user equipment switches between carrying out 3GPP accesses, however, it is determined that have available wireless local area networks WLAN, and the access Information includes carrying out the destination access technologies that switch between 3GPP accesses, according in the access information with the destination access technologies Corresponding particular bearer determines the carrying for being not involved in and switching between 3GPP accesses；

The user equipment will not participate in the carrying transmission switched between 3GPP accesses during switching between carrying out 3GPP accesses IP streams be moved to WLAN.

8. a kind of method of carrying switching, which is characterized in that this method includes：

Network side equipment receives the access information of user equipment, is connect according to target wherein the access information is the user equipment Enter what technology and particular bearer determined, the particular bearer is the user equipment when switching between carrying out 3GPP accesses, is needed It is switched to the carrying of the target access network using destination access technologies；

When the network side equipment switches between the user equipment carries out 3GPP accesses, according to access information determination and cut Change particular bearer.

9. method as claimed in claim 8, which is characterized in that the network side equipment receives the access information of user equipment, Including：

The network side equipment receives the access letter of the user equipment during user equipment to report metrical information Breath.

10. method as claimed in claim 8, which is characterized in that the network side equipment carries out 3GPP in the user equipment When switching between access, according to access information determination and switch particular bearer, including：

When the network side equipment switches between the user equipment carries out 3GPP accesses, the user received according to the last time sets Standby access information determines and switches particular bearer.

11. the method as described in claim 8~10 is any, which is characterized in that the access information includes：Destination access technologies With corresponding particular bearer.

12. method as claimed in claim 11, which is characterized in that the network side equipment carries out 3GPP in the user equipment When switching between access, according to access information determination and switch particular bearer, including：

Before the network side equipment switches between the user equipment carries out 3GPP accesses, however, it is determined that the user equipment has available WLAN, and the access information includes the destination access technologies switch between 3GPP accesses, is cut between carrying out 3GPP accesses During changing, switch the particular bearer in the access information.

13. a kind of user equipment of carrying switching, which is characterized in that the user equipment includes：

Determining module, for determining the access information for including destination access technologies and particular bearer, wherein particular bearer is described User equipment is needed to be switched to and be held using the target access network of destination access technologies when switching between carrying out 3GPP accesses It carries；

Notification module, for the access information determined to be notified network side equipment, so that the network side equipment is described Switch particular bearer when switching between user equipment progress 3GPP accesses.

14. user equipment as claimed in claim 13, which is characterized in that the determining module is determined according to following manner and participated in The carrying switched between 3GPP accesses：

A switching law is selected from multiple switching laws；For a destination access technologies, according to the switching of selection Access technology precedence information in rule determines and each IP of the IP stream description information matches in switching law streams In carrying, the particular bearer of the target access network is switched to when switching between 3GPP accesses, and will be with the switching law In the carrying of the unmatched each IP stream of IP stream description information be determined as particular bearer.

15. user equipment as claimed in claim 14, which is characterized in that the determining module is additionally operable to：

Determine that the switching law of selection changes；Or after carrying changes, the carrying for participating in switching between 3GPP accesses is determined.

16. user equipment as claimed in claim 13, which is characterized in that the notification module is specifically used for：

By core net, the network side equipment that the determining access information is notified to be currently accessed；Or in report measurement information During, network side equipment that the determining access information is notified to be currently accessed.

17. user equipment as claimed in claim 16, which is characterized in that the notification module is specifically used for：

Destination access technologies are E-UTRAN when switching between 3GPP accesses, and the access information is transferred to core by NAS message Net, and the access information is notified by network side that the user equipment is currently accessed by S1-MME control messages by core net Equipment；And/or

Destination access technologies are UTRAN or GERAN when switching between 3GPP accesses, are transmitted the access information by NAS message The access information is passed through into user equipment is currently accessed described in RANAP message informings network to core net, and by core net Side apparatus.

18. the user equipment as described in claim 13~17 is any, which is characterized in that the access information includes：Target connects Enter technology and corresponding particular bearer.

19. user equipment as claimed in claim 18, which is characterized in that the determining module is additionally operable to：

After determining access information notice network side equipment, before switching between carrying out 3GPP accesses, however, it is determined that having can With WLAN, and the access information includes the destination access technologies switch between 3GPP accesses, according to the access information In particular bearer corresponding with the destination access technologies, determine the carrying that switches between being not involved in 3GPP accesses；It is connect carrying out 3GPP During switching between entering, the IP streams that will not participate in the carrying transmission switched between 3GPP accesses are moved to WLAN.

20. a kind of network side equipment of carrying switching, which is characterized in that the network side equipment includes：

Receiving module, the access information for receiving user equipment, wherein the access information is the user equipment according to mesh Mark what access technology and particular bearer determined, the particular bearer is the user equipment when switching between carrying out 3GPP accesses, Need the carrying for being switched to the target access network using destination access technologies；

Processing module according to access information determination and is cut when for switching between carrying out 3GPP accesses in the user equipment Change particular bearer.

21. network side equipment as claimed in claim 20, which is characterized in that the receiving module is specifically used for：

The access information of the user equipment is received by core net；Or during the user equipment to report metrical information Receive the access information of the user equipment.

22. network side equipment as claimed in claim 20, which is characterized in that the processing module is specifically used for：

When switching between the user equipment carries out 3GPP accesses, according to the access information of user equipment that the last time receives, It determines and switches particular bearer.

23. the network side equipment as described in claim 20~22 is any, which is characterized in that the access information includes：Target Access technology and corresponding particular bearer.

24. network side equipment as claimed in claim 23, which is characterized in that the processing module is specifically used for：

Before switching between the user equipment carries out 3GPP accesses, however, it is determined that the user equipment has available WLAN, and described connects It includes that the destination access technologies switch between 3GPP accesses are cut during switching between carrying out 3GPP accesses to enter information Change the particular bearer in the access information.

25. a kind of system of carrying switching, which is characterized in that the system includes：

User equipment, for determining the access information for including destination access technologies and particular bearer, wherein particular bearer is described User equipment is needed to be switched to and be held using the target access network of destination access technologies when switching between carrying out 3GPP accesses It carries；The determining access information is notified into network side equipment；

Network side equipment, the access information for receiving user equipment, when switching between the user equipment carries out 3GPP accesses, According to access information determination and switch particular bearer.