CN102612163A - Bearing process method, bearing process device and bearing process system - Google Patents
Bearing process method, bearing process device and bearing process system Download PDFInfo
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- CN102612163A CN102612163A CN2011100244055A CN201110024405A CN102612163A CN 102612163 A CN102612163 A CN 102612163A CN 2011100244055 A CN2011100244055 A CN 2011100244055A CN 201110024405 A CN201110024405 A CN 201110024405A CN 102612163 A CN102612163 A CN 102612163A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
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Abstract
The embodiment of the invention provides a bearing process method, a bearing process device and a bearing process system. The method comprises the following steps: an MME (mobility management entity) receives a path switching request message sent by an eNB (evolved NodeB), and the path switching request message is used for requesting that at least one bearing is switched to a target transmission path; the MME informs a GW (gateway) of switching the first part of the baring to the target transmission path, and keeping the second part of the bearing in an original transmission path, wherein the first part of the bearing is part of or all of the at least one bearing in the switching request message, and the second part of the bearing is part of or all of the bearing except the first part of bearing in all the bearing of UE (user equipment), and the at least one bearing belongs to the all bearings of the UE. According to the embodiment of the invention, the part of the bearing of one or a plurality of the UE can be switched to another transmission path between the eNB and the GW from one transmission path between the eNB and the GW, and the abnormal business of the UE can be avoided.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a bearer processing method, device, and system.
Background
In a Long Term Evolution (LTE) system, one or more transmission paths may exist between an evolved node b (eNB) and a serving Gateway (Gateway, GW), and a bearer on each transmission path is used for transmitting data of one or more User Equipments (UEs).
In the process of switching a UE from a source eNB to a target eNB, if a Mobility Management Entity (MME) receives an identifier of a bearer that the UE needs to switch a transmission path and is sent by the target eNB, a serving GW is notified to switch the bearer to the target transmission path. And for the bearer corresponding to the bearer identifier of the UE, which is not received by the MME, the MME releases the bearer. If a part of bearers on a transmission path between an eNB and a GW is switched to another transmission path, the MME also releases the bearers corresponding to the bearer identities of the UE that are not received, which may cause some bearers of the UE to be improperly released, and the service of the UE may be abnormal.
Disclosure of Invention
Embodiments of the present invention provide a bearer processing method, device, and system, which can avoid a problem that a bearer of a UE is inappropriately released to cause an exception to a service of the UE.
One aspect of the present invention provides a bearer processing method, including:
the MME receives a path switching request message sent by the eNB, wherein the path switching request message is used for requesting to switch at least one bearer to a target transmission path;
the MME informs the GW to switch the first part of load to a target transmission path and keeps the second part of load on the original transmission path;
wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Another aspect of the present invention further provides a bearer processing method, including:
the eNB sends a path switching request message to the MME, wherein the path switching request message is used for requesting to switch at least one bearer to a target transmission path;
the eNB switches the first part of load bearing to a target transmission path and keeps the second part of load bearing in the original transmission path;
wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Another aspect of the present invention also provides an apparatus comprising:
a receiving unit, configured to receive a path switch request message sent by an eNB, where the path switch request message is used to request to switch at least one bearer to a target transmission path; and
the processing unit is used for informing the GW to switch the first part of load to a target transmission path and keeping the second part of load on the original transmission path; wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Another aspect of the present invention also provides an apparatus comprising:
a sending unit, configured to send a path switching request message to an MME, where the path switching request message is used to request to switch at least one bearer to a target transmission path; and
the processing unit is used for switching the first part of load bearing to a target transmission path and keeping the second part of load bearing on the original transmission path; wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the UE to which the at least one bearer belongs.
Another aspect of the present invention further provides a system, including an eNB, an MME and a GW, wherein:
the base station eNB is used for sending a path switching request message to the MME, and the path switching request message is used for requesting to switch at least one bearer to a target transmission path;
the MME is used for receiving the path switching request message, informing a gateway GW to switch a first part of load to a target transmission path and keeping a second part of load on an original transmission path;
the GW is used for switching the first part of load to a target transmission path;
the eNB is further configured to switch the first part of bearers to a target transmission path and keep a second part of bearers on an original transmission path;
wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
The method, the equipment and the system provided by the embodiment of the invention can switch partial load of one or more UE (user equipment) from one transmission path between the eNB and the GW to the other transmission path between the eNB and the GW, and retain all or part of the load which does not need to switch the transmission path in the original transmission path, thereby avoiding the problem that the abnormal service of the UE occurs because the load is improperly released, and ensuring the communication quality of the UE.
Drawings
FIG. 1 is a flow chart of a method provided by one embodiment of the present invention;
fig. 2 is a diagram illustrating transmission paths between an eNB and a GW in another embodiment of the present invention;
FIG. 3 is a schematic diagram of an apparatus provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of an apparatus provided by another embodiment of the present invention;
fig. 5 is a schematic diagram of a system according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first bearer in the embodiments of the present invention refers to a bearer that needs to switch a transmission path (i.e., switch from an original transmission path to a target transmission path), for example, if the eNB determines that one or more bearers need to switch transmission paths, the one or more bearers are the first bearer. Optionally, the first bearer may be a bidirectional bearer or a downlink bearer. In addition, the address of the bearer on the eNB side and the destination address on the GW side in the embodiments of the present invention include an IP address (TransportLayerAddress) of the destination, and may further include tunnel identification (GTP-TEID) information of the bearer.
As shown in fig. 1, an embodiment of the present invention provides a bearer processing method, including the following steps.
Step 110, the eNB sends a Path Switch Request (Path Switch Request) message to the MME, where the Path Switch Request message carries identities of one or more UEs, an identity of a first bearer of the UE, an end address of the first bearer on the eNB side, and indication information, where the indication information is used to indicate whether to allow releasing a bearer that does not carry a bearer identity in the Path Switch Request message.
In this step, the bearers for which the path switching request message does not carry the bearer identifier include bearers for which the path switching request message does not carry the bearer identifier among all bearers of the UE to which the first bearer belongs. That is, the indication information is a message level parameter, and is valid for all UEs involved in the message carrying the indication information. Optionally, the indication information is enumerated, for example, an enumerated value Non-included E-RABs notthreadead indicates that a bearer carrying no bearer identifier of the message carrying the indication information is not allowed to be Released, and an enumerated value Non-included E-RABs Released indicates that a bearer carrying no bearer identifier of the message carrying the indication information is allowed to be Released. The indication information may also be boolean or integer, for example, True or 1 indicates that the bearer carrying the indication information and not carrying the bearer identifier is not allowed to be released, False or 0 or a field of the indication information is null, indicates that the bearer carrying the indication information and not carrying the bearer identifier is allowed to be released.
Optionally, the path switch request message carries identities of one or more UEs (eNB UE S1APID), a bearer list (E-RAB To Be Switched) corresponding To the identity of each UE, and indication information. Each bearer list includes an identifier of a bearer of the UE that needs to switch a transmission path and an end address of the bearer on the eNB side, that is, the end address of the eNB side allocated by the eNB for the bearer, and the end address of the eNB side is adopted when the bearer is switched to a target transmission path.
Assuming that the eNB determines that one or more bearers of one UE need to switch transmission paths, the eNB allocates an end point address of the eNB side to the bearer of the UE that needs to switch transmission paths, and the end point addresses of the eNB side allocated by the eNB to different bearers of the UE may be the same or different. If two bearers are assigned end point addresses on the eNB side differently, the target transmission paths to which the two bearers are to be handed over are different. Optionally, the identifier of the bearer sent by the eNB and the destination address of the eNB side sent by the eNB are in a one-to-one correspondence relationship, that is, the number of the identifiers of the bearer is the same as the number of the destination addresses.
Assuming that other bearers of the UE need to be retained in the original transmission path except the bearer that needs to be switched over, the eNB does not carry the identifier of the bearer that needs to be retained in the original transmission path in the path switching request message, and sets the indication information to indicate that the bearer that does not carry the bearer identifier in the message carrying the indication information is not allowed to be released.
Assuming that other bearers of the UE need to be released except the bearer that needs to switch the transmission path, the eNB does not carry the identifier of the bearer that needs to be released in the path switch request message, and sets the indication information to indicate that the release of the bearer that does not carry the bearer identifier in the message carrying the indication information is allowed.
In this step, the identifier of the UE may be an identifier of the UE on the eNB side, that is, an identifier that is allocated by the eNB for the UE and is distinguished from other UEs, where the identifier is suitable for distinguishing the UE when the eNB and the MME transmit information at an S1 interface and perform internal processing, and if the identifier is also suitable for the GW, the MME may communicate with the GW by using the identifier, otherwise, the MME may convert the identifier into an identifier that is recognizable by the GW, which is not limited herein. Alternatively, the UE identity is a UE generic identity, i.e. it is not limited to be used by eNB and MME in S1 interface for information transmission and internal processing.
Step 120, the MME sends the received UE identifier, the UE first bearer identifier, and the end address of the first bearer on the eNB side to the GW, and determines whether to release the bearer not carrying the bearer identifier in the path switch request message according to the received indication information.
For example, if the indication information received by the MME is an enumerated value Non-included E-RABsReleased, the MME may determine that the eNB allows the release of the bearer whose bearer identifier is not carried in the path switch request message. Further, the MME releases the bearer that the path switch request message does not carry the bearer identifier. For another example, if the indication information received by the MME is an enumerated value Non-included E-RABs not requested, the MME may determine that the eNB does not allow the release of the bearer whose bearer identifier is not carried in the path switch request message. Further, the MME keeps the bearer that does not carry the bearer identifier in the path switch request message on the original transmission path.
In this step, the MME may further determine whether to allow itself to release the bearer not carried by the message carrying the indication information according to information such as the resource status, instead of directly listening to the indication of the eNB. If the judgment result of the MME is different from the meaning of the indication information sent by the eNB, the MME may process the bearer whose path switching request message does not carry the bearer identifier according to the judgment result of the MME, that is, the MME uses the indication information sent by the eNB as a condition for triggering the judgment of the MME. For example, the indication information received by the MME indicates that bearers that are not allowed to be released are bearer X, bearer Y, and bearer Z, but the MME determines that bearer X can be retained in the original transmission path, and bearer Y and bearer Z need to be released, then the MME retains bearer X in the original transmission path, and initiates a bearer deactivation procedure to release bearer Y and bearer Z.
Optionally, as shown in step 120 in fig. 1, the MME carries, in a data plane update Request (Modify Bearer Request) message sent to the GW, an identifier of the UE, an identifier of the first Bearer of the UE, and an end address of the first Bearer on the eNB side. For example, the end point address carried on the eNB side may occupy the S1 eNodeB F-TEID field in the data plane update request message.
If the first bearer is a bidirectional bearer, the GW already stores the original end point addresses of the first bearer on the eNB side and the GW side, so the GW may modify the original end point address of the first bearer on the eNB side to the received end point address of the first bearer on the eNB side, allocate a new end point address of the GW side to the first bearer, and after the first bearer is switched to the target transmission path, adopt the new end point address of the GW side.
If the first bearer is a downlink bearer, the GW already stores an original end point address of the first bearer on the eNB side and an original end point address of an uplink bearer corresponding to the first bearer on the GW side, so that the GW may modify the original end point address of the first bearer on the eNB side to the received end point address of the first bearer on the eNB side. In this step, the GW also switches the uplink bearer corresponding to the first bearer from the original transmission path to the target transmission path, that is, allocates a new destination address of the GW side to the uplink bearer corresponding to the first bearer, and after the uplink bearer corresponding to the first bearer is switched to the target transmission path, the new destination address of the GW side is used.
Optionally, before allocating the new destination address of the GW side, the GW determines whether the first bearer needs to switch the transmission path according to the received destination address of the first bearer on the eNB side, and if so, reallocates the new destination address of the GW side. For example, if the GW determines that the address segment of the end point address of the received first bearer on the eNB side is different from the address segment of the original end point address of the first bearer on the eNB side that is already stored by the GW, the GW determines that the first bearer needs to switch the transmission path. If the first bearer is a bidirectional bearer, the GW allocates a new destination address of the GW side for the first bearer to be used after the first bearer switches the transmission path, and an address segment in which the new destination address of the GW side is located is different from an address segment in which the original destination address of the GW side of the first bearer is stored. If the first bearer is a downlink bearer, the GW determines that the uplink bearer corresponding to the first bearer also needs to switch the transmission path, and allocates a new destination address on the GW side for the uplink bearer corresponding to the first bearer to be used after switching the transmission path for the uplink bearer corresponding to the first bearer, where an address field in which the new destination address on the GW side is located is different from an address field in which the original destination address on the GW side of the uplink bearer corresponding to the first bearer is stored by the GW.
As will be understood by those skilled in the art, the GW in this step switches the first bearer from the original transmission path to the target transmission path after completing the interaction with the PDN-GW. The interaction between the GW and the PDN-GW includes that the GW sends a data plane update Request (modifyberer Request) message to the PDN-GW and receives a data plane update Response (modifyberer Response) message sent by the PDN-GW, and the above process may refer to the prior art and is not described herein again.
It should be noted that, in this embodiment, the GW switches the first bearer receiving the bearer identifier from the original transmission path to the target transmission path, and actually, the GW may also determine (for example, determine according to a resource condition or other factors) which bearers are granted to switch the transmission paths, and determine whether the bearers granted to switch the transmission paths are successfully switched. This step and the following steps describe in detail the case that the GW succeeds in switching all the first bearers receiving the bearer identifier from the original transmission path to the target transmission path, and further, if the first bearer in step 110-. If the first bearer in step 110 and step 130 is a downlink bearer, steps 140 '-150' (not shown in FIG. 1) are performed. If the GW agrees to switch a part of the first bearer from the original transmission path to the target transmission path, or the GW successfully switches a part of the first bearer from the original transmission path to the target transmission path, the GW may send information related to the part of the first bearer to the eNB through the MME, such as an identifier of the bearer, an identifier of a UE to which the bearer belongs, and a new destination address of the GW side allocated by the GW for the bearer, instead of sending information related to the first bearer in which the GW rejects switching the transmission path or fails switching the transmission path. Of course, the GW may also send information related to the portion of the first bearer that rejects switching the transmission path. For example, an identity of the bearer, an identity of the UE to which the bearer belongs, and an indication (or cause value) to reject the handover transmission path or to fail the handover transmission path. As another example, the identifier of the bearer, the identifier of the UE to which the bearer belongs, and the original destination address of the bearer on the GW side. Optionally, the information may be carried in a data plane update response message sent by the GW to the MME and a path switching response message sent by the MME to the eNB, so as to notify the eNB of which bearer switching transmission paths fail. In case that the GW successfully switches the part of the first bearer, the eNB may switch the part of the first bearer from the original transmission path to the target transmission path, which will not be described in detail later.
Step 140 and step 150, the GW sends the UE identity, the UE first bearer identity, and the destination address of the first bearer on the GW side (i.e. the new destination address of the GW side allocated by the GW for the first bearer) to the eNB through the MME.
Optionally, as shown in step 140-150 in fig. 1, the GW carries the identity of the UE, the identity of the first Bearer of the UE, and the destination address of the first Bearer on the GW side in a data plane update Response (modified Bearer Response) message. Optionally, the end point address of the first bearer on the GW side may occupy the S1 SGW F-TEID field in the data plane update response message. The MME carries the identifier of the UE, the identifier of the first bearer of the UE, and the destination address of the first bearer on the GW side in a Path Switch Response (Path Switch Response) message.
In steps 140 '-150', the GW sends, to the eNB, the identifier of the UE, the identifier of the uplink bearer corresponding to the first bearer of the UE, and the destination address of the uplink bearer corresponding to the first bearer on the GW side (i.e. the new destination address of the GW side allocated by the GW for the first bearer) through the MME. Optionally, the information sent by the GW to the MME may be carried in the data plane update response message, and the information sent by the MME to the eNB may be carried in the path switch response message.
If the first bearer is a bidirectional bearer, the eNB already stores the original end point addresses of the first bearer on the eNB side and the GW side, so the eNB may modify the original end point address of the first bearer on the eNB side to the end point address of the first bearer on the eNB side sent to the MME, and modify the original end point address of the first bearer on the GW side to the end point address of the received first bearer on the GW side. Further, after the eNB switches the first bearer from the original transmission path to the target transmission path, the eNB and the GW perform data transmission of the first bearer on the switched transmission path (i.e., the target transmission path).
If the first bearer is a downlink bearer, the eNB already stores the original end point address of the first bearer on the eNB side and the original end point address of the uplink bearer corresponding to the first bearer on the GW side, so the eNB may modify the original end point address of the first bearer on the eNB side to the end point address of the first bearer on the eNB side sent to the MME. The eNB also switches the uplink bearer corresponding to the first bearer from the original transmission path to the target transmission path in this step, that is: and modifying the original terminal address of the uplink bearer corresponding to the first bearer on the GW side into the received terminal address of the uplink bearer corresponding to the first bearer on the GW side. Further, after the eNB completes the switching of the first bearer and the transmission path of the uplink bearer corresponding to the first bearer, the eNB and the GW perform data transmission of the first bearer and the uplink bearer corresponding to the first bearer on the switched transmission path.
In this embodiment, all or part of bearers of one or more UEs may be switched from one transmission path between an eNB and a GW to another transmission path between the eNB and the GW, and all or part of bearers that do not need to switch transmission paths are retained in the original transmission path, so as to avoid the problem of abnormal service of the UEs caused by improper bearer release, and ensure the communication quality of the UEs.
Another embodiment of the present invention provides a bearer processing method including steps 210-260. The steps 210-220 are different from the steps 110-120 in the above embodiment, and the descriptions of alternatives, examples, and the like of other steps can be referred to the above embodiment, and are not described herein again. The differences between the steps 210-220 and the steps 110-120 of the present embodiment will be described in detail below.
In step 210 in this embodiment, an eNB sends a path switching request message, where the path switching request message carries identities of one or more UEs, an identity of a first bearer of the UE, an end address of the first bearer on the eNB side, and at least one indication information, where the first bearer refers to a bearer that needs to switch a transmission path, and each indication information corresponds to an identity of one UE and is used to indicate whether to allow release of a bearer that does not carry a bearer identity in all bearers belonging to the UE corresponding to the indication information. The indication information in this embodiment is a UE-level parameter, i.e., is valid only for the UE corresponding to the indication information. For example, one indication information is carried in an information element corresponding to the identity of the UE. Optionally, if the identity of a certain UE does not have indication information corresponding thereto, the indication information may be regarded as a default value, that is, the default value is to allow (or disallow) releasing all bearers of the UE, the message carrying the indication information, or the bearer not carried by the information element. There are various types of information that may be used for the indication information in this step, and the first bearer may be a bidirectional bearer or a downlink bearer, which is not described herein again.
In step 220 of this embodiment, the MME sends the received UE identifier, the identifier of the first bearer of the UE, and the end address of the first bearer on the eNB side to the GW, and determines whether to release the bearer not carrying the bearer identifier in the bearer of each UE and in the path switching request message according to the received indication information. Optionally, the MME determines, according to information such as resource status, whether to allow itself to release the bearer that carries the bearer identifier but not the message carrying the indication information, instead of directly listening to the indication of the eNB.
For example, in step 210, the UE identity transmitted by the eNB includes the UE1 identity and the UE2 identity, and the eNB transmits two pieces of indication information, where the indication information corresponding to the UE1 indicates that the bearer not carrying the bearer identity in the path switch request message is allowed to be released from all bearers of the UE, and the indication information corresponding to the UE2 indicates that the bearer not carrying the bearer identity in the path switch request message is not allowed to be released from all bearers of the UE. Then in step 220, the MME determines to release the bearer which does not carry the bearer identification in the path switch request message among all bearers of the UE1, and does not release the bearer which does not carry the bearer identification in the path switch request message among all bearers of the UE 2.
In this embodiment, all or part of bearers of one or more UEs may be switched from one transmission path between an eNB and a GW to another transmission path between the eNB and the GW, and all or part of bearers that do not need to switch transmission paths are retained in the original transmission path, so as to avoid the problem of abnormal service of the UEs caused by improper bearer release, and ensure the communication quality of the UEs.
Another embodiment of the present invention provides a method for processing a bearer, comprising steps 310-360. The steps 310-320 are different from the steps 310-320 in the above embodiment, and the descriptions of alternatives, examples, and the like of other steps can be referred to the above embodiment, and are not described herein again. The differences between the steps 310-320 and the steps 110-120 of the present embodiment are described in detail below.
In step 310 in this embodiment, an eNB sends a path switching request message, where the path switching request message carries identities of one or more UEs, an identity of a first bearer of the UE, an end address of the first bearer on the eNB side, an identity of a second bearer of the UE, and at least one indication information, where the first bearer is a bearer requiring transmission path switching, the second bearer is a bearer which does not require transmission path switching and is not allowed to be released, and each indication information corresponds to an identity of one second bearer and is used to indicate that the bearer corresponding to the indication information is not allowed to be released. The indication information in this embodiment is a bearer level parameter, i.e., is valid only for the bearer corresponding to the indication information. For example, an indication information is carried in an information element corresponding to an identity of a second bearer for indicating that the bearer is not allowed to be released. Optionally, if the eNB further sends an identifier of a third bearer of one or more UEs, where the third bearer is a bearer that does not need to switch transmission paths and is allowed to be released, the eNB may further send indication information corresponding to the third bearer, so as to indicate that the bearer is allowed to be released. There are various types of information that may be used for the indication information in this step, and the first bearer may be a bidirectional bearer or a downlink bearer, which is not described herein again.
In step 320 of this embodiment, the MME sends the received UE identifier, the UE identifier of the first bearer, and the end address of the first bearer on the eNB side to the GW, and determines, according to the received indication information, which bearers to keep on the original transmission path (e.g., the second bearer corresponding to the indication information), and which bearers to release (e.g., the third bearer corresponding to the indication information). Optionally, the MME determines whether to allow a certain bearer to be retained in the original transmission path or release a certain bearer according to information such as resource status, instead of directly listening to the indication of the eNB.
For example, in step 310, the identity of the bearer sent by the eNB includes: bearer M, bearer N, and bearer P. The bearer M is a first bearer, and the eNB does not send indication information corresponding to the bearer M. And the bearer N is a second bearer, and the eNB sends indication information corresponding to the bearer N, wherein the indication information indicates that the bearer N is not allowed to be released. The bearer P is a third bearer, and the eNB sends indication information corresponding to the bearer P, where the indication information indicates that the bearer P is allowed to be released. In step 320, the MME sends the identifier of the UE to which the bearer M belongs, the identifier of the bearer M, and the end address of the bearer M on the eNB side to the GW, does not release the bearer N, keeps the bearer N on the original transmission path, and releases the bearer P.
In this embodiment, all or part of bearers of one or more UEs may be switched from one transmission path between an eNB and a GW to another transmission path between the eNB and the GW, and all or part of bearers that do not need to switch transmission paths are retained in the original transmission path, so as to avoid the problem of abnormal service of the UEs caused by improper bearer release, and ensure the communication quality of the UEs.
The embodiments of the present invention are all applicable to a scenario where part of the transmission paths between the eNB and the GW are broken or congestion occurs, and also applicable to a scenario where the transmission paths between the eNB and the GW have differences in reliability or QoS guarantee. Taking N transmission paths between the eNB and the GW as an example, assuming that the eNB determines that one of the transmission paths is about to be broken, the method provided by the foregoing embodiment may be adopted to switch bearers of all UEs on the transmission path about to be broken to other transmission paths. Assuming that the eNB determines that one of the transmission paths is congested, the method provided in the foregoing embodiment may be adopted to switch the part of the bearers on the congested transmission path to the other transmission paths. Assuming that the eNB determines that the reliability (or QoS guarantee) of one of the transmission paths is lower than the preset threshold, or lower than the reliability (or QoS guarantee) of the other transmission paths, the method provided by the above embodiment may be adopted to switch the partial bearer on the transmission path with lower reliability (or QoS guarantee) to the other transmission paths. The partial bearer may be a whole bearer or a partial bearer of a certain UE on the transmission path, such as a bearer with a higher priority, or may be a whole bearer or a partial bearer of some UEs on the transmission path where congestion occurs.
For example, as shown in fig. 2, three IP addresses configured in the eNB are 10.10.10.1, 10.10.11.1, and 10.10.12.1, respectively, three IP addresses configured in the GW are 10.10.10.2, 10.10.11.2, and 10.10.12.2, respectively, and the transport addresses 10.10.10.1 and 10.10.10.2 form a transport path a, the transport addresses 10.10.11.1 and 10.10.11.2 form a transport path B, and the transport addresses 10.10.12.1 and 10.10.12.2 form a transport path C. When the transmission path a is to be broken for some reason, the bearers of all UEs on the transmission path a are switched to the transmission path B. When the congestion occurs on the transmission path a, all or part of the bearers of one or more UEs on the transmission path a are switched to the transmission path B or C, for example, all the bearers of the UE1 and/or part of the bearers of the UE2 are switched to the transmission path B, so that the congestion degree of the transmission path a is reduced or the transmission path a is not congested any more. When the reliability or QoS guarantee aspect of the transmission path a is lower than that of the transmission path B, all or part of the bearers of one or more UEs on the transmission path a are switched to the transmission path B, for example, all the bearers of the UE1 and/or part of the bearers of the UE2 are switched to the transmission path B, so as to better guarantee the communication quality of the UE corresponding to the switched bearers.
As shown in fig. 3, another embodiment of the present invention also provides an apparatus 300, including:
a receiving unit 310, configured to receive a path switch request message sent by a base station eNB, where the path switch request message is used to request to switch at least one bearer to a target transmission path;
a processing unit 330, configured to notify the GW to switch the first part bearer to the target transmission path, and keep the second part bearer on the original transmission path; the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Optionally, the processing unit is specifically configured to send, to the GW, an identifier of the first partial bearer, an identifier of a UE to which the first partial bearer belongs, and an end address of the first partial bearer on the eNB side.
Optionally, when the first part bearer is a bidirectional bearer, the receiving unit is further configured to receive an end address of the first part bearer sent by the GW on the GW side, and the processing unit is further configured to send the end address of the first part bearer on the GW side to the eNB, so that the eNB uses the end address of the first part bearer on the GW side when switching the first part bearer to the target transmission path. Or, when the first part bearer is a downlink bearer, the receiving unit is further configured to receive an end point address, on the GW side, of an uplink bearer corresponding to the first part bearer, sent by the GW, and the processing unit is further configured to send the end point address, on the GW side, of the uplink bearer corresponding to the first part bearer to the eNB, so that the eNB adopts the end point address, on the GW side, of the uplink bearer corresponding to the first part bearer when switching the uplink bearer corresponding to the first part bearer to the target transmission path.
The device provided in this embodiment may be an MME, and may also be configured to implement steps executed by the MME in the method provided in each embodiment of the present invention, and specific implementation may refer to the description of the method provided in the above embodiment, which is not described herein again. The device provided by this embodiment can switch all or part of bearers of one or more UEs from one transmission path between an eNB and a GW to another transmission path between the eNB and the GW, and retain all or part of bearers that do not need to switch transmission paths in the original transmission path, thereby avoiding the problem of abnormal service of the UEs caused by improper bearer release, and ensuring the communication quality of the UEs.
As shown in fig. 4, another embodiment of the present invention also provides an apparatus, the apparatus 400 comprising:
a sending unit 410, configured to send a path switch request message to a mobility management entity MME, where the path switch request message is used to request to switch at least one bearer to a target transmission path;
a processing unit 430, configured to switch the first part bearer to a target transmission path, and keep the second part bearer in an original transmission path; the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Optionally, the path switching request message further carries indication information, where the indication information is used to indicate that the second part of bearers is not allowed to be released.
Optionally, when the first part of bearers are bidirectional bearers, the processing unit is specifically configured to receive an end address of the first part of bearers on a GW side sent by an MME, and switch the first part of bearers to a target transmission path, where the first part of bearers adopt the end address of the first part of bearers on the GW side and the end address of the first part of bearers on the device side; or,
when the first part of bearers is downlink bearers, the processing unit is further configured to receive an end point address, on the GW side, of an uplink bearer corresponding to the first part of bearers, sent by an MME, and switch the uplink bearer corresponding to the first part of bearers to a target transmission path, where the uplink bearer corresponding to the first part of bearers adopts the end point address, on the GW side, of the uplink bearer corresponding to the first part of bearers.
The device provided in this embodiment may be an eNB, and may also be configured to implement the steps executed by the eNB in the methods provided in the embodiments of the present invention, and specific implementation may refer to the description of the methods provided in the embodiments, and is not described herein again. The device provided by this embodiment can switch all or part of bearers of one or more UEs from one transmission path between an eNB and a GW to another transmission path between the eNB and the GW, and retain all or part of bearers that do not need to switch transmission paths in the original transmission path, thereby avoiding the problem of abnormal service of the UEs caused by improper bearer release, and ensuring the communication quality of the UEs.
As shown in fig. 5, another embodiment of the present invention further provides a system, the system 500 includes an eNB510, an MME530 and a GW550, wherein:
the eNB510 is configured to send a path switch request message to the MME, where the path switch request message is used to request to switch at least one bearer to a target transmission path;
the MME530 is configured to receive the path switch request message, notify the gateway GW to switch the first part of bearers to the target transmission path, and keep the second part of bearers on the original transmission path;
the GW550 is configured to switch the first partial bearer to a target transmission path;
the eNB510 is further configured to switch the first part bearer to a target transmission path, and keep the second part bearer in an original transmission path;
the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
In the system provided in this embodiment, for details of implementation steps of the MME530, the eNB510, and the GW550, and the like, reference may be made to the method description provided in each embodiment of the present invention, and details are not described here again. The system provided by the embodiment can switch all or part of bearers of one or more UEs from one transmission path between the eNB and the GW to another transmission path between the eNB and the GW, and retain all or part of bearers which do not need to switch transmission paths in the original transmission path, thereby avoiding the problem of abnormal service of the UEs caused by improper bearer release, and ensuring the communication quality of the UEs.
Those skilled in the art will appreciate that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a computer-readable storage medium, where the program is stored in the computer-readable storage medium, and the computer-readable storage medium includes: ROM/RAM, magnetic disk, optical disk, etc.
For example, one embodiment of the present invention provides a method, which may optionally be implemented by programming to instruct associated hardware. The method comprises the following steps: MME receives a path switching request message sent by eNB, wherein the path switching request message is used for requesting to switch at least one bearer to a target transmission path; the MME informs the GW to switch the first part of load to a target transmission path and keeps the second part of load on the original transmission path; the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Optionally, the path switching request message carries an identifier of the at least one bearer and an identifier of a UE to which the at least one bearer belongs, where the at least one bearer belongs to one UE, or when the at least one bearer is multiple bearers, the multiple bearers belong to multiple UEs.
Further, the path switch request message further carries indication information, where the indication information is used to indicate that the second part of bearers are not allowed to be released.
Optionally, the notifying, by the MME, the GW to switch the first partial bearer to the target transmission path includes: and the MME sends the identifier of the first part of load bearing, the identifier of the UE to which the first part of load bearing belongs and the terminal address of the first part of load bearing on the eNB side to the GW.
Further, if the first part bearer is a bidirectional bearer, the method provided in this embodiment further includes: the MME receives a destination address of a first part of load carried on a GW side and sent by the GW; and the MME sends the destination address of the first part bearing on the GW side to the eNB so that the eNB adopts the destination address of the first part bearing on the GW side when switching the first part bearing to a target transmission path. Optionally, the end address of the first part bearer on the GW side is allocated by the GW to the first part bearer after determining that the first part bearer needs to switch the transmission path according to the received end address of the first part bearer on the eNB side.
If the first part of bearers is downlink bearers, the method provided by this embodiment further includes: the MME receives a destination address of an uplink bearer at the GW side, which is sent by the GW and corresponds to the first part of bearers; and the MME sends the terminal address of the uplink bearer corresponding to the first part bearer on the GW side to the eNB so that the eNB adopts the terminal address of the uplink bearer corresponding to the first part bearer on the GW side when switching the uplink bearer corresponding to the first part bearer to a target transmission path. Optionally, the end address of the uplink bearer corresponding to the first part bearer on the GW side is allocated by the GW to the uplink bearer corresponding to the first part bearer after determining, according to the received end address of the first part bearer on the eNB side, that the first part bearer and the uplink bearer corresponding to the first part bearer need to switch transmission paths.
As another example, an embodiment of the present invention provides a method, which may optionally be implemented by a program instructing associated hardware. The method comprises the following steps: a base station eNB sends a path switching request message to an MME, wherein the path switching request message is used for requesting to switch at least one bearer to a target transmission path; the eNB switches the first part of load bearing to a target transmission path and keeps the second part of load bearing in the original transmission path; the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Optionally, the path switching request message carries an identifier of the at least one bearer and an identifier of a UE to which the at least one bearer belongs, where the at least one bearer belongs to one UE, or when the at least one bearer is multiple bearers, the multiple bearers belong to multiple UEs.
Optionally, the path switching request message further carries indication information, where the indication information is used to indicate that the second part of bearers is not allowed to be released.
Further, when the first partial bearer is a bidirectional bearer, the switching, by the eNB, the first partial bearer to the target transmission path includes: eNB receives a destination address of a first part of load carried on a GW side and sent by MME; and the eNB switches the first part of load bearing to a target transmission path, wherein the first part of load bearing adopts the end address of the first part of load bearing on the GW side and the end address of the first part of load bearing on the eNB side. Or, when the first part of the bearers are downlink bearers, the method provided in this embodiment further includes: the eNB receives a destination address of an uplink bearer corresponding to the first part bearer at the GW side, which is sent by the MME; and the eNB switches the uplink bearer corresponding to the first part bearer to a target transmission path, wherein the uplink bearer corresponding to the first part bearer adopts the destination address of the uplink bearer corresponding to the first bearer on the GW side.
The following is a simple example of that the path switch request message in the apparatus, the system, and the method provided in the foregoing embodiments carries indication information, where the indication information is used to indicate that the second partial bearer is not allowed to be released. For example, the indication information carried in the path switch request message is used to indicate that the bearer not carrying the bearer identifier in the path switch request message is not allowed to be released, that is, the second part of the bearer includes the bearer not carrying the bearer identifier in the path switch request message. For another example, when the at least one bearer belongs to one UE, the indication information carried in the path switching request message corresponds to an identifier of the one UE, and is used to indicate that the bearer belonging to the one UE in the bearers that do not carry the bearer identifier in the path switching request message is not allowed to be released, that is, the second part of bearers includes the bearer belonging to the one UE in the bearers that do not carry the bearer identifier in the path switching request message. For another example, when the at least one bearer is a plurality of bearers, and the plurality of bearers belong to a plurality of UEs, at least one of the indication information carried in the path switch request message corresponds to an identifier of one UE of the plurality of UEs, and is configured to indicate that the bearer belonging to the UE corresponding to the indication information is not allowed to be released from the bearers not carrying the bearer identifier in the path switch request message, that is, the second part of bearers includes the bearer belonging to the second part of UEs from the bearers not carrying the bearer identifier in the path switch request message, and the indication information corresponding to the second part of UEs indicates that the bearer belonging to the UE corresponding to the indication information is not allowed to be released from the bearers not carrying the bearer identifier in the path switch request message. For another example, the path switch request message further carries an identifier of the second partial bearer, and at least one piece of indication information in the indication information carried by the path switch request message corresponds to an identifier of one bearer in the second partial bearer, and is used to indicate that the bearer corresponding to the indication information is not allowed to be released.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (27)
1. A bearer processing method is characterized by comprising the following steps:
a mobile management entity MME receives a path switching request message sent by a base station eNB, wherein the path switching request message is used for requesting to switch at least one bearer to a target transmission path;
MME informs gateway GW to switch the first part of load to the target transmission path and keeps the second part of load in the original transmission path;
wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
2. The method of claim 1, wherein the path switch request message carries an identifier of the at least one bearer and an identifier of a UE to which the at least one bearer belongs, wherein the at least one bearer belongs to one UE, or wherein when the at least one bearer is a plurality of bearers, the plurality of bearers belong to a plurality of UEs.
3. The method of claim 2, wherein the path switch request message further carries indication information indicating that the release of the second partial bearer is not allowed.
4. The method of claim 3, wherein the indication information carried in the path switch request message is used to indicate that the bearer not carrying the bearer identifier in the path switch request message is not allowed to be released.
5. The method of claim 4, wherein the second portion of the bearer comprises a bearer in which the path switch request message does not carry a bearer identification.
6. The method according to claim 3, wherein when the at least one bearer belongs to one UE, the indication information carried in the path switch request message corresponds to an identifier of the one UE, and is used to indicate that the release of the bearer belonging to the one UE in the bearers not carrying the bearer identifier in the path switch request message is not allowed.
7. The method of claim 6, wherein the second portion of bearers comprises bearers belonging to the one UE among bearers for which the path switch request message does not carry a bearer identity.
8. The method according to claim 3, wherein the at least one bearer is a plurality of bearers, and when the plurality of bearers belong to a plurality of UEs, at least one of the indication information carried in the path switch request message corresponds to an identifier of one UE of the plurality of UEs, so as to indicate that the bearers belonging to the UE corresponding to the indication information in the bearers not carrying the bearer identifier in the path switch request message are not allowed to be released.
9. The method according to claim 8, wherein the second part of bearers includes bearers belonging to a second part of UEs in the bearers not carrying the bearer identifier in the path switch request message, and the indication information corresponding to the second part of UEs indicates that the bearers belonging to the UEs corresponding to the indication information in the bearers not carrying the bearer identifier in the path switch request message are not allowed to be released.
10. The method of claim 3, wherein the path switch request message further carries an identifier of the second partial bearer, and at least one of the indication information carried by the path switch request message corresponds to the identifier of one of the second partial bearers, so as to indicate that the bearer corresponding to the indication information is not allowed to be released.
11. The method of any of claims 1 to 10, wherein the MME informing the GW of the handover of the first partial bearer to the target transmission path comprises:
and the MME sends the identifier of the first part of load bearing, the identifier of the UE to which the first part of load bearing belongs and the terminal address of the first part of load bearing on the eNB side to the GW.
12. The method of claim 11, wherein when the first partial bearer is a bidirectional bearer, the method further comprises:
the MME receives a destination address of a first part of load carried on a GW side and sent by the GW;
and the MME sends the destination address of the first part of the bearer on the GW side to the eNB so that the eNB adopts the destination address of the first part of the bearer on the GW side when switching the first part of the bearer to a target transmission path.
13. The method of claim 12, wherein the terminal address of the first partial bearer on the GW side is allocated by the GW for the first partial bearer after the GW determines that the first partial bearer needs to switch transmission paths according to the received terminal address of the first partial bearer on the eNB side.
14. The method of claim 11, wherein when the first partial bearer is a downlink bearer, the method further comprises:
the MME receives a destination address of an uplink bearer at the GW side, which is sent by the GW and corresponds to the first part of bearers;
and the MME sends the terminal address of the uplink bearer corresponding to the first part bearer on the GW side to the eNB so that the eNB adopts the terminal address of the uplink bearer corresponding to the first part bearer on the GW side when switching the uplink bearer corresponding to the first part bearer to a target transmission path.
15. The method of claim 14, wherein the destination address of the uplink bearer corresponding to the first partial bearer on the GW side is allocated by the GW to the uplink bearer corresponding to the first partial bearer after the GW determines that the first partial bearer and the uplink bearer corresponding to the first partial bearer need to switch transmission paths according to the received destination address of the first partial bearer on the eNB side.
16. A bearer processing method is characterized by comprising the following steps:
a base station eNB sends a path switching request message to a mobile management entity MME, wherein the path switching request message is used for requesting to switch at least one bearer to a target transmission path;
the eNB switches the first part of load bearing to a target transmission path and keeps the second part of load bearing in the original transmission path;
wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
17. The method of claim 16, wherein the path switch request message carries an identifier of the at least one bearer and an identifier of a UE to which the at least one bearer belongs, wherein the at least one bearer belongs to one UE, or wherein when the at least one bearer is a plurality of bearers, the plurality of bearers belong to a plurality of UEs.
18. The method of claim 17, wherein the path switch request message further carries indication information indicating that the release of the second partial bearer is not allowed.
19. The method according to claim 18, wherein the indication information carried in the path switch request message is used to indicate that the bearer not carrying the bearer identifier in the path switch request message is not allowed to be released; or,
when the at least one bearer belongs to one UE, the indication information carried by the path switching request message corresponds to the identifier of the one UE, and is used to indicate that the bearer belonging to the one UE in the bearers not carrying the bearer identifier in the path switching request message is not allowed to be released; or,
when the plurality of bearers belong to a plurality of UEs, at least one indication information in the indication information carried by the path switching request message corresponds to an identifier of one UE in the plurality of UEs, and the at least one bearer is used for indicating that the bearers belonging to the UE corresponding to the indication information in the bearers not carrying the bearer identifier in the path switching request message are not allowed to be released; or,
the path switching request message further carries an identifier of the second part bearer, and at least one of the indication information carried by the path switching request message corresponds to an identifier of one of the second part bearers, and is used for indicating that the bearer corresponding to the indication information is not allowed to be released.
20. The method of any one of claims 16 to 19,
when the first part bearer is a bidirectional bearer, the switching the first part bearer to a target transmission path by the eNB includes:
eNB receives a destination address of a first part of load carried on a GW side and sent by MME;
the eNB switches the first part of load bearing to a target transmission path, wherein the first part of load bearing adopts an end point address of the first part of load bearing on a GW side and an end point address of the first part of load bearing on an eNB side; or,
when the first part of bearer is a downlink bearer, the method further includes:
the eNB receives a destination address of an uplink bearer corresponding to the first part bearer at the GW side, which is sent by the MME;
and the eNB switches the uplink bearer corresponding to the first part bearer to a target transmission path, wherein the uplink bearer corresponding to the first part bearer adopts the destination address of the uplink bearer corresponding to the first bearer on the GW side.
21. An apparatus, comprising:
a receiving unit, configured to receive a path switch request message sent by a base station eNB, where the path switch request message is used to request to switch at least one bearer to a target transmission path; and
the processing unit is used for informing the gateway GW to switch the first part of load to a target transmission path and keeping the second part of load on the original transmission path; wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
22. The apparatus of claim 21, wherein the processing unit is specifically configured to send an identity of the first partial bearer, an identity of a UE to which the first partial bearer belongs, and an end point address of the first partial bearer on an eNB side to a GW.
23. The apparatus of claim 22,
when the first part bearer is a bidirectional bearer, the receiving unit is further configured to receive an end point address, sent by a GW, of the first part bearer on the GW side, and the processing unit is further configured to send the end point address, sent by the GW, of the first part bearer to an eNB, so that the eNB uses the end point address, sent by the GW side, of the first part bearer when switching the first part bearer to a target transmission path; or,
when the first part of bearers are downlink bearers, the receiving unit is further configured to receive an end point address, on the GW side, of an uplink bearer corresponding to the first part of bearers, sent by the GW, and the processing unit is further configured to send the end point address, on the GW side, of the uplink bearer corresponding to the first part of bearers, to the eNB, so that the eNB adopts the end point address, on the GW side, of the uplink bearer corresponding to the first part of bearers when switching the uplink bearer corresponding to the first part of bearers to the target transmission path.
24. An apparatus, comprising:
a sending unit, configured to send a path switch request message to a mobility management entity MME, where the path switch request message is used to request to switch at least one bearer to a target transmission path; and
the processing unit is used for switching the first part of load bearing to a target transmission path and keeping the second part of load bearing on the original transmission path; wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
25. The apparatus of claim 24, wherein the path switch request message further carries indication information indicating that release of the second partial bearer is not allowed.
26. The apparatus according to claim 24 or 25, wherein when the first partial bearer is a bidirectional bearer, the processing unit is specifically configured to receive an end point address, sent by an MME, of the first partial bearer on a GW side, and switch the first partial bearer to a target transmission path, where the first partial bearer adopts the end point address of the first partial bearer on the GW side and the end point address of the first partial bearer on the apparatus side; or,
when the first part of bearers are downlink bearers, the processing unit is further configured to receive an end point address, at the GW side, of an uplink bearer corresponding to the first part of bearers, sent by an MME, and switch the uplink bearer corresponding to the first part of bearers to a target transmission path, where the uplink bearer corresponding to the first part of bearers adopts the end point address, at the GW side, of the uplink bearer corresponding to the first part of bearers.
27. A system comprising a base station eNB, a mobility management entity MME and a gateway GW,
the base station eNB is used for sending a path switching request message to the MME, and the path switching request message is used for requesting to switch at least one bearer to a target transmission path;
the MME is used for receiving the path switching request message, informing a gateway GW to switch a first part of load to a target transmission path and keeping a second part of load on an original transmission path;
the GW is used for switching the first part of load to a target transmission path;
the eNB is further configured to switch the first part of bearers to a target transmission path and keep a second part of bearers on an original transmission path;
wherein the first part of bearers are part or all of the at least one bearer in the handover request message, and the second part of bearers are part or all of bearers except the first part of bearers in all bearers of the user equipment UE to which the at least one bearer belongs.
Priority Applications (2)
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| CN2011100244055A CN102612163A (en) | 2011-01-22 | 2011-01-22 | Bearing process method, bearing process device and bearing process system |
| PCT/CN2011/083024 WO2012097644A1 (en) | 2011-01-22 | 2011-11-28 | Bearer processing method, device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100244055A CN102612163A (en) | 2011-01-22 | 2011-01-22 | Bearing process method, bearing process device and bearing process system |
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| CN102612163A true CN102612163A (en) | 2012-07-25 |
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| CN103747442A (en) * | 2013-12-27 | 2014-04-23 | 上海华为技术有限公司 | Security key context distribution method, mobility management entity and base station |
| CN105309009A (en) * | 2014-01-28 | 2016-02-03 | 华为技术有限公司 | Service transfer method and device |
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| CN103747442B (en) * | 2013-12-27 | 2017-06-30 | 华为技术有限公司 | A kind of security key context distribution, mobile management entity and base station |
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| CN105409285A (en) * | 2014-06-12 | 2016-03-16 | 华为技术有限公司 | Bearer switching control device and control method |
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| US10660006B2 (en) | 2014-06-12 | 2020-05-19 | Huawei Technologies Co., Ltd. | Bearer handover control device and control method |
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| CN105850174B (en) * | 2014-11-07 | 2019-05-24 | 华为技术有限公司 | A kind of method and apparatus obtaining user equipment (UE) information |
| CN105850174A (en) * | 2014-11-07 | 2016-08-10 | 华为技术有限公司 | Method and device for obtaining user equipment information |
| CN108886822A (en) * | 2016-07-04 | 2018-11-23 | 华为技术有限公司 | The method and apparatus for transmitting data |
| CN110089151A (en) * | 2016-12-20 | 2019-08-02 | 英特尔Ip公司 | System and method for packets forwarding during the switching process |
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