WO2015143888A1 - 业务提供的方法、源基站和目标基站 - Google Patents

业务提供的方法、源基站和目标基站 Download PDF

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Publication number
WO2015143888A1
WO2015143888A1 PCT/CN2014/092703 CN2014092703W WO2015143888A1 WO 2015143888 A1 WO2015143888 A1 WO 2015143888A1 CN 2014092703 W CN2014092703 W CN 2014092703W WO 2015143888 A1 WO2015143888 A1 WO 2015143888A1
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WIPO (PCT)
Prior art keywords
base station
service resource
target base
source base
information
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PCT/CN2014/092703
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English (en)
French (fr)
Inventor
温立
汪孙节
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华为技术有限公司
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Publication of WO2015143888A1 publication Critical patent/WO2015143888A1/zh

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    • H—ELECTRICITY
    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection

Definitions

  • the present invention relates to communication technologies, and in particular, to a service providing method, a source base station, and a target base station.
  • the wireless network is originally designed for voice communication, and is essentially a User Equipment (UE) to a Packet Work Gateway (P-GW)/Gateway GPRS Support Node (GGSN). A closed channel between them, with data service functions.
  • UE User Equipment
  • P-GW Packet Work Gateway
  • GGSN Gateway GPRS Support Node
  • FIG. 1 is a schematic diagram of an implementation scenario in which an existing user acquires a service resource through a base station.
  • the service request is sent to the base station, and the base station selects to extract the service resource from the local cache of the base station and sends the service resource to the user equipment according to the content of the required service in the local cache, or sends the service to the user equipment.
  • the network side server after the GW/GGSN transmits the content of the service resource to the base station, and then transmits the content to the user equipment.
  • the source base station cannot continue to provide services to the user equipment, and the user equipment needs to re-send the service request to the target base station, and after receiving the service request, the target base station obtains the local cache or The network side server obtains the service resource and sends it to the user equipment. This may cause the user's service to fail.
  • the present invention provides a service providing method, a source base station, and a target base station, which can implement continuity of service resources provided by the target base station when the user equipment is handed over from the source base station to the target base station, and ensure that the service is normally performed.
  • the present invention provides a method for service provision, including:
  • the target base station receives the handover request sent by the source base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment;
  • the target base station acquires corresponding service resources according to the information of the service resources
  • the target base station sends the obtained corresponding service resource to the user equipment
  • the target base station sends a handover response to the source base station.
  • the information of the service resource includes a resource fragment identifier currently used by the user equipment.
  • the target base station acquires the corresponding service resource according to the information of the service resource, and specifically includes:
  • the target base station If the target base station stores the service resource in the local cache, the target base station acquires the service resource corresponding to the information of the service resource in the local cache; or
  • the target base station If the target base station does not have a local cache or the service resource is not stored in the local cache, the target base station sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity, and receives the request sent by the remote cache function entity.
  • the target base station sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity, and receives the request sent by the remote cache function entity.
  • the target base station If the target base station does not have a local cache or the service resource is not stored in the local cache, and the Backhaul backhaul link exists between the target base station and the source base station, the target base station sends the information corresponding to the service resource to the source base station through the Backhaul backhaul link.
  • the link further includes:
  • the target base station stores the obtained corresponding service resource in the local cache.
  • the method further includes:
  • the target base station sends a handover complete message to the source base station, so that the source base station releases the cache for storing the service resources.
  • the present invention provides a method for service provision, including:
  • the source base station sends a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired corresponding information to the user equipment.
  • Business resources ;
  • the source base station receives the handover response sent by the target base station.
  • the information of the service resource includes a resource fragment identifier currently used by the user equipment.
  • the method further includes:
  • the source base station receives, by using a Backhaul backhaul link with the target base station, a request for the service resource corresponding to the information of the service resource sent by the target base station;
  • the source base station sends a corresponding service resource to the target base station through the Backhaul backhaul link.
  • the present invention provides a target base station, including:
  • a handover receiving module configured to receive a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment;
  • a data acquisition module configured to acquire a corresponding service resource according to the information of the service resource
  • a data sending module configured to send the obtained corresponding service resource to the user equipment
  • a switching sending module configured to send a handover response to the source base station.
  • the information of the service resource includes a resource fragment identifier currently used by the user equipment.
  • the data acquisition module is specifically configured to:
  • the data obtaining module acquires the service resource corresponding to the information of the service resource in the local cache
  • the data acquisition module sends a request for acquiring the service resource corresponding to the service resource information to the remote cache function entity, and receives the remote cache function entity to send the request.
  • the remote cache function entity corresponds business resources; or,
  • the data acquisition module sends the information to the source base station through the Backhaul backhaul link to obtain the information corresponding to the service resource.
  • the data acquisition module receives the remote cache function. After the corresponding service resource is sent by the body, or after the data acquisition module receives the corresponding service resource sent by the source base station through the Backhaul backhaul link, the data acquisition module is further configured to store the obtained corresponding service resource in the local cache.
  • the handover sending module sends the handover response to the source base station
  • the present invention provides a source base station, including:
  • the handover sending module is configured to send a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the service resource to the user equipment.
  • the target base station acquires the corresponding service resource according to the information of the service resource, and sends the service resource to the user equipment.
  • the response module is configured to receive a handover response sent by the target base station.
  • the information of the service resource includes a resource fragment identifier currently used by the user equipment.
  • the method further includes:
  • a handover receiving module configured to: after the handover sending module sends the handover request to the target base station, receive a request for the service resource corresponding to the service resource information sent by the target base station by using a Backhaul backhaul link with the target base station;
  • a data sending module configured to send, by using a Backhaul backhaul link, a corresponding service resource to the target base station.
  • the method for providing a service, the source base station, and the target base station provided by the present invention after the source base station sends a handover request carrying the service resource information provided by the source base station to the target base station, so that the target base station acquires the corresponding service resource according to the information of the service resource and The user equipment sends the obtained corresponding service resource. After the user equipment is switched from the source base station to the target base station, the target base station continuously provides service resources for the user equipment to ensure that the service is normal.
  • FIG. 1 is a schematic diagram of an implementation scenario of an existing user acquiring a service resource through a base station
  • FIG. 2 is a schematic flowchart of a method for providing a service according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of a service providing method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic flowchart of a service providing method according to Embodiment 3 of the present invention.
  • Embodiment 4 of the present invention is a signaling flowchart of a method for providing a service provided by Embodiment 4 of the present invention
  • Embodiment 6 is a signaling flowchart of a method for providing a service provided by Embodiment 5 of the present invention.
  • Embodiment 7 is a signaling flowchart of a method for providing a service provided by Embodiment 6 of the present invention.
  • Embodiment 8 is a signaling flowchart of a method for providing a service provided by Embodiment 7 of the present invention.
  • FIG. 9 is a schematic structural diagram of a target base station according to Embodiment 8 of the present invention.
  • FIG. 10 is a schematic structural diagram of a source base station according to Embodiment 9 of the present invention.
  • FIG. 11 is a schematic structural diagram of a target base station according to Embodiment 10 of the present invention.
  • FIG. 12 is a schematic structural diagram of a source base station according to Embodiment 11 of the present invention.
  • FIG. 2 is a schematic flowchart of a method for providing a service according to Embodiment 1 of the present invention. As shown in FIG. 2, the method for providing service provided by Embodiment 1 of the present invention includes:
  • Step 101 The target base station receives a handover request sent by the source base station, where the handover request carries information about the service resource provided by the source base station for the user equipment.
  • a local Cache cache is also deployed in the source base station and the target base station, and may also be referred to as a near-end Cache cache, which is deployed after the Packet Data Network Gateway (P-GW) of the core network.
  • Side cache function entity The remote cache function entity is configured to provide service resource content for the user equipment UE, and may be a server or a data center set up on the network side, such as an Internet content provider. Server and so on.
  • the remote cache function entity holds an index Cache Index with its own local Cache cache.
  • the information of the service resource provided by the source base station for the user equipment may be used to indicate that the source base station currently provides the service resource for the user equipment, so that the target base station can continuously provide the user equipment according to the situation that the source base station provides the service resource.
  • the information of the service resource may include the resource fragment identifier currently used by the user equipment, and may further include content such as the capacity information of the service resource.
  • the capacity information of the service resource includes information such as the size of the Cache buffer occupied by the service resource.
  • the source base station moves to the target base station, resulting in an inter-base station handover procedure.
  • the source base station and the target base station may be various macro-micro stations in a network such as a Long Term Evolution (LTE) or a Universal Mobile Telecommunications System (UMTS).
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • the source base station sends a handover request to the target base station, where the handover request carries the information of the service resource provided by the active base station for the user equipment, and may include the resource fragment identifier currently used by the user equipment.
  • the resource fragment identifier currently used by the user equipment is used to indicate which resource fragment is currently used by the user.
  • Step 102 The target base station acquires corresponding service resources according to the information of the service resource.
  • the resource fragmentation identifier indicated by the service resource information may be used to find a storage location of the related service resource and obtain the service resource.
  • the target base station may be a traditional base station that does not have a local cache, or a base station that is configured with a local cache. Therefore, the target base station may obtain service resources in the following manners according to different storage locations of the service resources. .
  • the target base station may obtain the service resource corresponding to the information of the service resource in the local cache; in another scenario, if the target base station If there is no local cache or no service resources are stored in the local cache, the target base station sends the acquisition and service resources to the remote cache function entity.
  • the source information corresponds to the request of the service resource, and receives the corresponding service resource sent by the remote cache function entity; in another scenario, if the target base station does not have a local cache or the local cache does not store the service resource, and the target base station A Backhaul backhaul link exists between the source base station and the source base station, and the target base station sends a request for acquiring the service resource corresponding to the service resource information to the source base station through the Backhaul backhaul link, and receives the corresponding service sent by the source base station through the Backhaul backhaul link. Resources.
  • the target base station can store the obtained corresponding service resource in the local cache.
  • Step 103 The target base station sends the obtained corresponding service resource to the user equipment.
  • the target base station sends the locally buffered service resource to the user equipment, or forwards the service resource from the source base station or the remote cache if there is no local cache.
  • Step 104 The target base station sends a handover response to the source base station.
  • the target base station After transmitting the obtained corresponding service resource to the user equipment, the target base station sends a handover response to the source base station, indicating that the handover operation has been completed.
  • the target base station After the target base station sends the handover response to the source base station, it may also receive a reconfiguration complete message sent by the user equipment; the target base station sends a handover complete message to the source base station, so that the source base station releases the cache for storing the service resource.
  • the service resources of the user are provided by the target base station, and the source base station can release the buffer space of the original storage service resource, so as to store the service resources of other users.
  • the target base station after the target base station receives the handover request sent by the source base station, the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired corresponding service resource to the user equipment; and then sends the handover response to the source base station.
  • the target base station continuously provides service resources for the user, so that the user can still receive service resources normally.
  • FIG. 3 is a schematic flowchart of a service providing method according to Embodiment 2 of the present invention. As shown in FIG. 3, the method provided in Embodiment 2 of the present invention includes:
  • Step 201 The source base station sends a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station sends a message according to the service resource. Acquiring corresponding service resources, and transmitting the obtained corresponding service resources to the user equipment;
  • the information of the service resource may include a resource fragment identifier currently used by the user equipment.
  • the method may further include:
  • the source base station receives, by using a Backhaul backhaul link with the target base station, a request for the service resource corresponding to the information of the service resource sent by the target base station;
  • the source base station sends a corresponding service resource to the target base station through the Backhaul backhaul link.
  • the reconfiguration message may be sent to the user equipment, where the reconfiguration message is used to indicate that the user equipment is continuously provided with service resources.
  • the user equipment can re-configure the acquisition address of the service resource, etc., to achieve continuous and uninterrupted acquisition of service resources.
  • Step 202 The source base station receives a handover response sent by the target base station.
  • the source base station sends a handover request to the target base station to carry the information of the service resource provided by the active base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the obtained service to the user equipment.
  • the corresponding service resource then receives the handover response sent by the target base station.
  • FIG. 4 is a schematic flowchart of a method for providing service provided according to Embodiment 3 of the present invention. As shown in FIG. 4, this embodiment provides an interaction process between a source base station and a target base station in a service providing scenario, and the method provided in Embodiment 3 of the present invention includes:
  • Step 301 The source base station sends a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the obtained service to the user equipment.
  • the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the obtained service to the user equipment.
  • a local Cache cache is also deployed in the source base station and the target base station, and may also be referred to as a near-end Cache cache.
  • a remote cache is deployed after the Packet Data Network Gateway (P-GW) of the core network. Functional entity.
  • the remote cache function entity holds an index Cache Index with its own local Cache cache.
  • Step 302 The target base station receives a handover request sent by the source base station, where the handover request carries information about the service resource provided by the source base station for the user equipment.
  • Step 303 The target base station acquires corresponding service resources according to the information of the service resource.
  • the target base station acquires corresponding service resources according to the information of the service resource, including:
  • the target base station If the target base station stores the service resource in the local cache, the target base station acquires the service resource corresponding to the information of the service resource in the local cache; or
  • the target base station If the target base station does not have a local cache or the service resource is not stored in the local cache, the target base station sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity, and receives the request sent by the remote cache function entity.
  • the target base station sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity, and receives the request sent by the remote cache function entity.
  • the target base station If the target base station does not have a local cache or the service resource is not stored in the local cache, and the Backhaul backhaul link exists between the target base station and the source base station, the target base station sends the information corresponding to the service resource to the source base station through the Backhaul backhaul link.
  • the method further includes:
  • the target base station stores the obtained corresponding service resource in the local cache.
  • the illustrated target base station can obtain service resources in the following ways.
  • the target base station can directly obtain the service resources corresponding to the service resource information in the local Cache cache, without requiring the remote cache function entity.
  • the target base station sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity. And receiving the corresponding service resource sent by the remote cache function entity. If the target base station has a local cache, the target base station may obtain the corresponding service. The resource is stored in the local cache.
  • the target base station passes the Backhaul backhaul chain.
  • the path sends a request for acquiring the service resource corresponding to the information of the service resource to the source base station, and receives the corresponding service resource sent by the source base station by using the Backhaul backhaul link.
  • Step 304 The target base station sends a handover response to the source base station.
  • the target base station After transmitting the obtained corresponding service resource to the user equipment, the target base station sends a handover response to the source base station, indicating that the handover operation has been completed.
  • Step 305 The source base station receives a handover response sent by the target base station.
  • the source base station After the target base station completes the query and the receiving operation of the required service resource, the source base station sends a reconfiguration message to the mobile user equipment, where the message is used to indicate that the user equipment is continuously provided with service resources, including whether the user has a Cache after the user switch. Cache space, whether the content can be continuous and so on.
  • the user equipment reconfigures according to the reconfiguration message and sends a reconfiguration complete message to the target base station.
  • the target base station After transmitting the handover response to the source base station, the target base station receives the reconfiguration complete message sent by the user equipment and sends a handover complete message to the source base station, so that the source base station releases the cache for storing the service resource. After receiving the handover complete message sent by the target base station, the source base station detaches from the service of the user, and releases the Cache buffer space in the source base station where the user service resource is stored. At this time, the service resources required by the user are continuously provided by the target base station.
  • Step 306 The target base station sends the obtained corresponding service resource to the user equipment.
  • the target base station forwards the corresponding service resource stored in the local Cache buffer to the user equipment or directly sends the service resource from the local Cache buffer or the remote cache entity of the source base station to the user equipment according to whether the local Cache is in the local cache.
  • the source base station sends a handover request to the target base station to carry the information of the service resource provided by the active base station for the user equipment, and after receiving the handover request sent by the source base station, the target base station acquires the corresponding service resource according to the information of the service resource. And sending a handover response to the source base station; the source base station sends a reconfiguration message for indicating that the service resource is continuously provided to the user equipment, and releases the cache of the storage service resource after receiving the handover completion information sent by the target base station; The acquired corresponding service resource is sent by the target base station to the user equipment. In this way, when the source base station switches to the target base station, the target base station continuously provides the user for the user. Service resources ensure that users can still receive service resources normally.
  • FIG. 5 is a signaling flowchart of a service providing method according to Embodiment 4 of the present invention.
  • Embodiment 4 corresponds to an implementation scenario in which there is no required service resource in the local cache of the target base station after the base station is switched. Specifically include:
  • the source base station sends a handover request to the target base station, where the handover request carries information about the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired service information to the user equipment.
  • the handover request carries information about the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired service information to the user equipment.
  • the target base station receives a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment.
  • the source base station and the target base station perform information exchange and other information, so that the target base station obtains information about the service resources provided by the source base station for the user equipment UE. .
  • the target base station acquires the corresponding service resource according to the information of the service resource, and specifically includes: if the target base station does not store the service resource in the local cache, the target base station sends the service resource corresponding to the information of the service resource to the remote cache function entity. The request and receive the corresponding service resource sent by the remote cache function entity.
  • the source base station and the target base station start to switch the interaction process.
  • the target base station first queries whether the service resource is stored in the local cache. In this implementation scenario, the target base station does not have the service resources required by the user equipment UE in the local cache, so the target base station does not process the local cache. Instead, the remote cache function entity sends a request to obtain a service resource corresponding to the information of the service resource.
  • the target base station sends a handover response to the source base station.
  • the target base station After the target base station obtains the corresponding service resource, the target base station sends a handover response to the source base station, and informs that the corresponding service resource information has been obtained.
  • the source base station receives a handover response sent by the target base station.
  • the foregoing steps are established between the source base station local cache cache, the target base station local cache cache, the Mobility Management Entity (MME), the Signal Gate Way (S-GW), and the remote cache function entity. Start a new wireless bearer. Because the local Cache is deployed in the target base station, and the target base station and the source base station are not There is a Backhaul backhaul link, so after receiving the corresponding service resource sent by the remote cache function entity, the target base station stores the service resource in the local Cache cache of the target base station.
  • MME Mobility Management Entity
  • S-GW Signal Gate Way
  • the target base station sends the obtained corresponding service resource to the user equipment.
  • the target base station sends the service resource that is obtained and stored in the local Cache buffer to the user equipment UE to ensure that the service of the user equipment UE is continuous.
  • the target base station sends a request corresponding to the service resource corresponding to the service resource information to the remote cache function entity in the implementation scenario where the target base station does not have the required service resource in the local cache, and receives the remote high speed.
  • the corresponding service resource sent by the cache function entity is stored in the local cache cache and forwarded to the user equipment. In this way, when the source base station switches to the target base station, the target base station continuously provides service resources for the user, so that the user can still receive service resources normally.
  • FIG. 6 is a signaling flowchart of a service providing method according to Embodiment 5 of the present invention.
  • the remote cache function entity performs a business continuity implementation scenario. Specifically include:
  • the source base station sends a handover request to the target base station, where the handover request carries information about the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired service information to the user equipment.
  • the handover request carries information about the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired service information to the user equipment.
  • the target base station receives a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment.
  • the source base station and the target base station perform information exchange and other information, so that the target base station obtains information about the service resources provided by the source base station for the user equipment UE. .
  • the target base station acquires the corresponding service resource according to the information of the service resource, and specifically includes: if the target base station does not have the local cache, the target base station sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity, And receiving the corresponding service resource sent by the remote cache function entity.
  • the source base station and the target base station start to switch the interaction process.
  • the target base station first queries whether the service resource is stored in the local cache, because in the implementation scenario, the target base station does not deploy the local cache buffer, and there is no Backhaul backhaul link between the target base station and the source base station, so the remote end
  • the cache function entity sends a request to obtain a service resource corresponding to the information of the service resource.
  • the target base station sends a handover response to the source base station.
  • the target base station After the target base station obtains the corresponding service resource, the target base station sends a handover response to the source base station, and informs that the corresponding service resource information has been obtained.
  • the source base station receives a handover response sent by the target base station.
  • the source base station may further send a reconfiguration message to the user equipment, where the reconfiguration message is used to indicate that the user equipment is continuously provided with service resources;
  • the above steps establish a new cache between the source base station local cache Cache, the target base station, the Mobility Management Entity (MME), the Signal Gate Way (S-GW), and the remote cache function entity.
  • MME Mobility Management Entity
  • S-GW Signal Gate Way
  • Wireless bearer The above steps establish a new cache between the source base station local cache Cache, the target base station, the Mobility Management Entity (MME), the Signal Gate Way (S-GW), and the remote cache function entity.
  • MME Mobility Management Entity
  • S-GW Signal Gate Way
  • the target base station sends the obtained corresponding service resource to the user equipment.
  • the target base station does not have a local Cache buffer, and there is no Backhaul backhaul link between the target base station and the source base station.
  • the target base station After receiving the corresponding service resource sent by the remote cache function entity, the target base station directly sends the corresponding service resource to the user equipment UE to ensure the user.
  • the services of the device UE are continuous.
  • the target base station sends a request corresponding to the service resource corresponding to the service resource information to the remote cache function entity in the implementation scenario where the target base station does not set the cache locally, and receives the remote cache function entity to send the request.
  • the corresponding business resources are then forwarded directly to the user equipment. In this way, when the source base station switches to the target base station, the target base station continuously provides service resources for the user, so that the user can still receive service resources normally.
  • FIG. 7 is a signaling flowchart of a service providing method according to Embodiment 6 of the present invention.
  • Embodiment 6 corresponds to an implementation scenario in which a required service resource is stored in a local Cache cache of a target base station after a base station handover. Specifically include:
  • the source base station sends a handover request to the target base station, where the handover request carries information about the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired service information to the user equipment.
  • the handover request carries information about the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired service information to the user equipment.
  • the target base station receives a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment.
  • the source base station and the target base station perform interaction of information such as a handover request, so that the target base station obtains the source base station for use.
  • Information about the service resources provided by the user equipment UE is not limited to, but not limited
  • the target base station acquires the corresponding service resource according to the information of the service resource, and specifically includes: if the target base station stores the service resource in the local cache, the target base station acquires the service resource corresponding to the information of the service resource in the local cache;
  • the source base station and the target base station start to switch the interaction process.
  • the target base station first queries whether the service resource is stored in the local cache.
  • the target base station stores the required service resources in the local cache cache, so the remote cache function entity does not participate in the continuous processing of the service resources.
  • the target base station sends a handover response to the source base station.
  • the target base station After the target base station obtains the corresponding service resource, the target base station sends a handover response to the source base station, and informs that the corresponding service resource information has been obtained.
  • the source base station receives a handover response sent by the target base station.
  • the foregoing steps are established between the source base station local cache cache, the target base station local cache cache, the Mobility Management Entity (MME), the Signal Gate Way (S-GW), and the remote cache function entity. Start a new wireless bearer. Because the local Cache is deployed in the target base station, the remote cache function entity does not perform continuous service processing.
  • MME Mobility Management Entity
  • S-GW Signal Gate Way
  • the target base station sends the obtained corresponding service resource to the user equipment.
  • the target base station sends the service resource that is obtained and stored in the local Cache buffer to the user equipment UE to ensure that the service of the user equipment UE is continuous.
  • the local Cache of the target eNB directly provides continuous service resources for the user equipment. In this way, when the source base station switches to the target base station, the target base station continuously provides service resources for the user, so that the user can still receive service resources normally.
  • FIG. 8 is a signaling flowchart of a service providing method according to Embodiment 7 of the present invention.
  • Embodiment 7 corresponds to an implementation scenario in which the target base station does not have a local cache or a service resource that is not stored in the local cache, but a Backhaul backhaul link exists between the target base station and the source base station.
  • the target base station does not have a local cache or a service resource that is not stored in the local cache, but a Backhaul backhaul link exists between the target base station and the source base station.
  • the target base station does not have a local cache or a service resource that is not stored in the local cache, but a Backhaul backhaul link exists between the target base station and the source base station.
  • the source base station sends a handover request to the target base station, where the source base station is carried in the handover request.
  • the information about the service resource provided by the user equipment so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the acquired corresponding service resource to the user equipment;
  • the target base station receives a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment.
  • the source base station and the target base station perform information exchange and other information, so that the target base station obtains information about the service resources provided by the source base station for the user equipment UE. .
  • the target base station acquires the corresponding service resource according to the information of the service resource, and specifically includes: if the target base station does not have a local cache or does not store the service resource in the local cache, and the Backhaul backhaul link exists between the target base station and the source base station, the target The base station sends a request for acquiring the service resource corresponding to the information of the service resource to the source base station through the Backhaul backhaul link, and receives the corresponding service resource sent by the source base station through the Backhaul backhaul link.
  • the source base station and the target base station start to switch the interaction process.
  • the target base station first queries whether the service resource is stored in the local cache, because in the implementation scenario, the target base station does not have the service resources required by the user equipment UE in the local cache, but there is a Backhaul backhaul link between the target base station and the source base station, so Data transmission between the target base station and the source base station is possible through the available Backhaul backhaul link.
  • the target base station may send a request for acquiring the service resource corresponding to the service resource information to the source base station through the Backhaul backhaul link, and receive the corresponding service resource sent by the source base station through the Backhaul backhaul link, and the remote cache function entity does not participate.
  • Business continuity processing may be used to acquire the service resource corresponding to the service resource information to the source base station through the Backhaul backhaul link, and receive the corresponding service resource sent by the source base station through the Backhaul backhaul link, and the remote cache function entity does not participate.
  • the target base station sends a handover response to the source base station.
  • the target base station After the target base station obtains the corresponding service resource, the target base station sends a handover response to the source base station, and informs that the corresponding service resource information has been obtained.
  • the source base station receives a handover response sent by the target base station.
  • the foregoing steps are established between the source base station local cache cache, the target base station local cache cache, the Mobility Management Entity (MME), the Signal Gate Way (S-GW), and the remote cache function entity.
  • MME Mobility Management Entity
  • S-GW Signal Gate Way
  • the remote cache function entity Start a new wireless bearer. Because the local Cache buffer is deployed in the target base station, and there is a Backhaul backhaul link available between the target base station and the source base station, the target base station receives through the Backhaul backhaul link. The corresponding service resource sent by the source base station.
  • the target base station sends the obtained corresponding service resource to the user equipment.
  • the QoS is stored in the local Cache and then sent to the user equipment. If the local Cache is not set, the service resource is directly forwarded to the user equipment UE, thereby ensuring the user equipment UE. Business continuity.
  • the target base station when the target base station and the source base station have a Backhaul backhaul link, the target base station can directly forward the service resource to the target base station by using the Backhaul backhaul link when there is no local cache or the local cache does not store the service resource. Data to achieve business continuity. In this way, when the source base station switches to the target base station, the target base station continuously provides service resources for the user, so that the user can still receive service resources normally.
  • FIG. 9 is a schematic structural diagram of a target base station according to Embodiment 8 of the present invention. As shown in FIG. 9, the embodiment 8 provides a target base station 71, which specifically includes:
  • the handover receiving module 701 is configured to receive a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment.
  • the data obtaining module 702 is configured to obtain a corresponding service resource according to the information of the service resource.
  • the data sending module 703 is configured to send the acquired corresponding service resource to the user equipment
  • the handover sending module 704 is configured to send a handover response to the source base station.
  • the information of the service resource includes the resource fragment identifier currently used by the user equipment.
  • the data obtaining module 702 is configured to obtain corresponding service resources according to the information of the service resource, including:
  • the data acquisition module 702 obtains the service resource corresponding to the information of the service resource in the local cache;
  • the data obtaining module 702 sends a request for acquiring the service resource corresponding to the information of the service resource to the remote cache function entity, and receives the remote cache function entity.
  • the corresponding business resource sent; or,
  • the data acquisition module 702 sends the information about the acquired service resource to the source base station through the Backhaul backhaul link. Corresponding service resource request, and receiving corresponding service resources sent by the source base station through the Backhaul backhaul link.
  • the data acquisition module 702 receives the corresponding service resource sent by the remote cache function entity, or the data acquisition module 702 receives the corresponding service resource sent by the source base station through the Backhaul backhaul link. After that, it also includes storing the obtained corresponding service resource in the local cache.
  • the handover sending module 704 sends the handover response to the source base station, it is further configured to send a handover complete message to the source base station, so that the source base station releases the cache for storing the service resource.
  • the handover receiving module in the target base station may receive the handover request sent by the source base station, and the data acquisition module acquires the corresponding service resource according to the information of the service resource, and then the data sending module sends the acquired corresponding service to the user equipment.
  • the resource finally transmits the handover response to the source base station.
  • FIG. 10 is a schematic structural diagram of a source base station according to Embodiment 9 of the present invention. As shown in FIG. 10, the present invention provides a source base station 81, which specifically includes:
  • the handover sending module 801 is configured to send a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the service resource to the user equipment.
  • the corresponding business resources obtained;
  • the response module 802 is configured to receive a handover response sent by the target base station.
  • the information of the service resource includes the resource fragment identifier currently used by the user equipment.
  • the source base station may further include:
  • the handover receiving module 803 is configured to: after the handover sending module 801 sends a handover request to the target base station, receive a request for the service resource corresponding to the service resource information sent by the target base station by using a Backhaul backhaul link with the target base station;
  • the data sending module 804 is configured to send a corresponding service resource to the target base station by using the Backhaul backhaul link.
  • the handover sending module of the source base station sends a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource. And sending the obtained corresponding service resource response module to the user equipment, and receiving the handover response sent by the target base station.
  • the target base station continuously provides service resources for the user, so that the user can still receive service resources normally.
  • FIG. 11 is a schematic structural diagram of a target base station according to Embodiment 10 of the present invention. As shown in FIG. 11, the tenth embodiment provides a target base station 91, which specifically includes:
  • the receiver 901 is configured to receive a handover request sent by the source base station, where the handover request carries information about a service resource provided by the source base station for the user equipment.
  • the processor 902 is configured to obtain a corresponding service resource according to the information of the service resource.
  • a transmitter 903 configured to send the acquired corresponding service resource to the user equipment
  • the information of the service resource includes the resource fragment identifier currently used by the user equipment.
  • the processor 902 is configured to obtain corresponding service resources according to the information of the service resource, including:
  • the processor 902 obtains the service resource corresponding to the information of the service resource in the local cache;
  • the processor 902 sends a request for acquiring the service resource corresponding to the service resource information to the remote cache function entity, and receives the remote cache function entity to send the request.
  • Corresponding business resources or,
  • the processor 902 sends the information corresponding to the service resource to the source base station through the Backhaul backhaul link.
  • the processor 902 receives the corresponding service resource sent by the remote cache function entity, or after the processor 902 receives the corresponding service resource sent by the source base station through the Backhaul backhaul link, It also includes storing the obtained corresponding business resource in a local cache.
  • the transmitter 903 is further configured to send a handover complete message to the source base station, so that the source base station releases the cache for storing the service resource.
  • the receiver in the target base station may receive the handover request sent by the source base station; the processor of the target base station acquires the corresponding service resource according to the information of the service resource; and then the transmitter of the target base station sends the acquired corresponding information to the user equipment.
  • the service resource; the transmitter of the last target base station sends a handover response to the source base station.
  • FIG. 12 is a schematic structural diagram of a source base station according to Embodiment 11 of the present invention. As shown in FIG. 12, the present invention provides a source base station 92, which specifically includes:
  • the transmitter 1001 is configured to send a handover request to the target base station, where the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the service resource to the user equipment.
  • the handover request carries the information of the service resource provided by the source base station for the user equipment, so that the target base station acquires the corresponding service resource according to the information of the service resource, and sends the service resource to the user equipment.
  • the processor 1002 is configured to receive a handover response sent by the target base station.
  • the information of the service resource includes the resource fragment identifier currently used by the user equipment.
  • the source base station may further include:
  • the receiver 1003 is configured to: after the transmitter 1001 sends a handover request to the target base station, receive, by using a Backhaul backhaul link with the target base station, a request for the service resource corresponding to the information of the service resource sent by the target base station;
  • the transmitter 1001 is further configured to send, by using a Backhaul backhaul link, a corresponding service resource to the target base station.
  • the transmitter of the source base station sends a handover request to the target base station, and the information of the service resource provided by the source base station for the user equipment is carried in the handover request, so that the target base station acquires the corresponding service resource according to the information of the service resource. And transmitting the obtained corresponding service resource to the user equipment; the processor of the source base station receives the handover response sent by the target base station.
  • the target base station continuously provides service resources for the user when the source base station switches to the target base station, so that the user can still receive service resources normally.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明提供一种业务提供的方法、源基站和目标基站。该业务提供的方法包括：目标基站接收源基站发送的切换请求，所述切换请求中携带所述源基站为用户设备提供的业务资源的信息；所述目标基站根据所述业务资源的信息获取相应的业务资源；所述目标基站向所述用户设备发送所获取的相应的业务资源；所述目标基站向所述源基站发送切换应答。本发明实施例可使用户设备从源基站切换到目标基站时，目标基站为用户连续提供业务资源，保证业务的正常进行。

Description

业务提供的方法、源基站和目标基站 技术领域
本发明涉及通信技术，尤其涉及一种业务提供的方法、源基站和目标基站。
背景技术
无线网络最初为语音通信设计，实质上是用户设备(User Equipment，简称UE)到分组数据网关(Packet work Gateway，简称P-GW)/通用分组无线业务网关支持节点(Gateway GPRS Support Node，简称GGSN)之间的封闭通道，具有数据业务功能。
现有技术中，用户可以通过与基站连接的内容缓存服务器接收业务数据。图1是现有的用户通过基站获取业务资源的实施场景示意图。如图1所示，用户设备获取业务时，将业务请求发送给基站，基站再根据本地缓存中无有所需业务内容，选择从基站本地缓存提取业务资源并发送给用户设备，或者通过位于P-GW/GGSN之后的网络侧服务器将业务资源内容传输给基站，然后发送给用户设备。而当用户移动而导致用户设备从源基站切换到目标基站后，源基站无法继续向用户设备提供业务，用户设备需要重新向目标基站发送业务请求，目标基站接收到业务请求后，从本地缓存或网络侧服务器获取业务资源，再发送给用户设备，这样可能会导致用户的业务无法正常进行。
发明内容
本发明提供了一种业务提供的方法、源基站和目标基站，可以实现在用户设备从源基站切换到目标基站时，目标基站仍能业务资源提供的连续性，保证业务正常进行。
第一方面，本发明提供一种业务提供的方法，包括：
目标基站接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
目标基站根据业务资源的信息获取相应的业务资源；
目标基站向用户设备发送所获取的相应的业务资源；
目标基站向源基站发送切换应答。
结合第一方面，在第一种实施方式中，业务资源的信息包括用户设备当前所使用的资源分片标识。
结合第一方面和第一种实施方式，在第二种实施方式中，目标基站根据业务资源的信息获取相应的业务资源，具体包括：
若目标基站本地缓存中存储业务资源，则目标基站在本地缓存中获取与业务资源的信息对应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，则目标基站向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则目标基站通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
结合第一方面和前两种实施方式，在第三种实施方式中，若目标基站本地缓存中未存储业务资源，接收远端高速缓存功能实体发送的相应的业务资源之后，或者，通过Backhaul回程链路接收源基站发送的相应的业务资源之后，还包括：
目标基站将获取的相应的业务资源存储在本地缓存中。
结合第一方面和前三种实施方式，在第四种实施方式中，目标基站向源基站发送切换应答之后，还包括：
目标基站向源基站发送切换完成消息，以使源基站释放存储业务资源的缓存。
第二方面，本发明提供一种业务提供的方法，包括：
源基站向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
源基站接收目标基站发送的切换应答。
结合第二方面，在第一种实施方式中，业务资源的信息包括用户设备当前所使用的资源分片标识。
结合第二方面和第一种实施方式，在第二种实施方式中，源基站向目标基站发送切换请求之后，还包括：
源基站通过与目标基站之间的Backhaul回程链路，接收目标基站发送的与业务资源的信息对应的业务资源的请求；
源基站通过Backhaul回程链路向目标基站发送对应的业务资源。
第三方面，本发明提供一种目标基站，包括：
切换接收模块，用于接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
数据获取模块，用于根据业务资源的信息获取相应的业务资源；
数据发送模块，用于向用户设备发送所获取的相应的业务资源；
切换发送模块，用于向源基站发送切换应答。
结合第三方面，在第一种实施方式中，业务资源的信息包括用户设备当前所使用的资源分片标识。
结合第三方面和第一种实施方式，在第二种实施方式中，数据获取模块具体用于：
若目标基站本地缓存中存储业务资源，则数据获取模块在本地缓存中获取与业务资源的信息对应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，则数据获取模块向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则数据获取模块通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
结合第三方面和前两种实施方式，在第三种实施方式中，若目标基站本地缓存中未存储业务资源，数据获取模块接收远端高速缓存功能实 体发送的相应的业务资源之后，或者，数据获取模块通过Backhaul回程链路接收源基站发送的相应的业务资源之后，还用于将获取的相应的业务资源存储在本地缓存中。
结合第三方面和前三种实施方式，在第四种实施方式中，切换发送模块向源基站发送切换应答之后，
还用于向源基站发送切换完成消息，以使源基站释放存储所述业务资源的缓存。
第四方面，本发明提供一种源基站，包括：
切换发送模块，用于向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
应答模块，用于接收目标基站发送的切换应答。
结合第四方面，在第一种实施方式中，业务资源的信息包括用户设备当前所使用的资源分片标识。
结合第四方面和第一种实施方式，在第二种实施方式中，还包括：
切换接收模块，用于在切换发送模块向目标基站发送切换请求之后，通过与目标基站之间的Backhaul回程链路，接收目标基站发送的与业务资源的信息对应的业务资源的请求；
数据发送模块，用于通过Backhaul回程链路向目标基站发送对应的业务资源。
本发明提供的业务提供的方法、源基站和目标基站，源基站向目标基站发送携带源基站提供的业务资源信息的切换请求之后，从而使目标基站根据业务资源的信息获取相应的业务资源并向用户设备发送所获取的相应的业务资源。这样可以实现在用户设备从源基站切换到目标基站之后，目标基站为用户设备连续提供业务资源，保证业务正常进行。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图做一简单地介绍，显而易见地，下 面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是现有的用户通过基站获取业务资源的实施场景示意图；
图2是本发明实施例一提供的业务提供的方法流程示意图；
图3是本发明实施例二提供的业务提供的方法流程示意图；
图4是本发明实施例三提供的业务提供的方法流程示意图；
图5是本发明实施例四提供的业务提供的方法的信令流程图；
图6是本发明实施例五提供的业务提供的方法的信令流程图；
图7是本发明实施例六提供的业务提供的方法的信令流程图；
图8是本发明实施例七提供的业务提供的方法的信令流程图；
图9是本发明实施例八提供的目标基站的结构示意图；
图10是本发明实施例九提供的源基站的结构示意图；
图11是本发明实施例十提供的目标基站的结构示意图；
图12是本发明实施例十一提供的源基站的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图2是本发明实施例一提供的业务提供的方法流程示意图。如图2所示，本发明实施例一提供的业务提供的方法包括：
步骤101、目标基站接收源基站发送的切换请求，切换请求中携带所述源基站为用户设备提供的业务资源的信息；
以图2中的网络架构为例。如图2所示，源基站和目标基站中均部署有本地Cache缓存，也可称为近端Cache缓存，在核心网的分组数据网关(Packet Data Network Gateway,简称P-GW)之后部署有远端高速缓存功能实体。远端高速缓存功能实体用于为用户设备UE提供业务资源内容，可以是网络侧设立的服务器或者数据中心，例如互联网内容提供商的服 务器等。远端高速缓存功能实体保存有其自身本地Cache缓存的索引Cache Index。用户设备UE在源基站覆盖范围内时，源基站向用户设备UE提供业务资源。当用户设备UE在从源基站移动到目标基站时，源基站将携带源基站为用户设备提供的业务资源信息的切换请求发送至目标基站。
具体的，源基站为用户设备提供的业务资源的信息可以用来表示源基站当前为用户设备提供业务资源的情况，以使目标基站可根据源基站提供业务资源的情况，为用户设备连续提供该业务资源。业务资源的信息可以包括用户设备当前所使用的资源分片标识，此外还可以包括业务资源的容量信息等内容，业务资源的容量信息包括有该业务资源所占用的Cache缓存的大小等信息。
当用户设备在由源基站提供业务资源，例如视频业务资源时，从源基站移动到了目标基站，导致发生了基站间切换过程。其中，源基站和目标基站可以是长期演进(Long Term Evolution，简称LTE)、通用移动通信系统(Universal Mobile Telecommunications System，简称UMTS)等网络中的各种宏微站点。
此时源基站向目标基站发送切换请求，切换请求中携带有源基站为用户设备提供的业务资源的信息，可以包括用户设备当前所使用的资源分片标识。其中，用户设备当前所使用的资源分片标识用于表示用户当前在使用哪个资源分片。
步骤102、目标基站根据业务资源的信息获取相应的业务资源；
在获得业务资源信息后，即可根据业务资源信息所指示的资源分片标识，查找所需的相关业务资源的存储位置并获取该业务资源。本发明实施例中，目标基站可以是传统的没有设置本地缓存的基站，也可以是设置有本地缓存的基站，因此，根据业务资源存储位置的不同，目标基站可以通过以下几种方式获取业务资源。
具体的，一种场景下，如果目标基站本地缓存中存储有所需的业务资源，则目标基站可以在本地缓存中获取与业务资源的信息对应的业务资源；另一种场景下，如果目标基站不存在本地缓存或者本地缓存中未存储业务资源，则目标基站向远端高速缓存功能实体发送获取与业务资 源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源；又一种场景下，如果目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则目标基站通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
具体的，若目标基站存在本地缓存，但本地缓存中未存储所需的业务资源，则接收远端高速缓存功能实体发送的相应的业务资源之后，或者，通过Backhaul回程链路接收源基站发送的相应的业务资源之后，目标基站均可以将获取的相应的业务资源存储在本地缓存中。
步骤103、目标基站向用户设备发送所获取的相应的业务资源；
目标基站将本地缓存的业务资源向用户设备发送，或者在不存在本地缓存的情况下，转发来自源基站或者远端缓存的业务资源。
步骤104、目标基站向源基站发送切换应答。
目标基站在向用户设备发送获取的相应的业务资源后，向源基站发送切换应答，表示自己已完成切换操作。
目标基站向源基站发送切换应答之后，还可以接收用户设备发送的重配置完成消息；目标基站向源基站发送切换完成消息，以使源基站释放存储业务资源的缓存。
切换完成之后，用户的业务资源由目标基站提供，源基站可以将原先存储业务资源的缓存空间释放，以便于存储其他用户的业务资源。
本实施例中，目标基站接收源基站发送的切换请求之后，目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；然后向源基站发送切换应答。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图3是本发明实施例二提供的业务提供的方法流程示意图。如图3所示，本发明实施例二提供的方法包括：
步骤201、源基站向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信 息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
其中，业务资源的信息可以包括用户设备当前所使用的资源分片标识。
可选的，源基站向目标基站发送切换请求之后，还可以包括：
源基站通过与目标基站之间的Backhaul回程链路，接收目标基站发送的与业务资源的信息对应的业务资源的请求；
源基站通过Backhaul回程链路向目标基站发送对应的业务资源。
源基站向目标基站发送切换请求后，还可以向用户设备发送重配置消息，其中，重配置消息用于指示连续为用户设备提供业务资源。这样可使用户设备对业务资源的获取地址等重新进行配置，以实现连续不间断的获取业务资源。
步骤202、源基站接收目标基站发送的切换应答。
本实施例中，源基站向目标基站发送携带有源基站为用户设备提供的业务资源的信息的切换请求，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源，然后接收目标基站发送的切换应答。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图4是本发明实施例三提供的业务提供的方法流程示意图。如图4所示，本实施例提供源基站和目标基站在业务提供场景中的交互过程，本发明实施例三提供的方法包括：
步骤301、源基站向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
具体的，源基站和目标基站中均部署有本地Cache缓存，也可称为近端Cache缓存，在核心网的分组数据网关(Packet Data Network Gateway,简称P-GW)之后部署有远端高速缓存功能实体。远端高速缓存功能实体保存有其自身本地Cache缓存的索引Cache Index。用户设备UE在源基站覆盖范围内时，源基站向用户设备UE提供业务资源。当用户设备UE在从源基站移动到目标基站时，源基站将携带源基站为用户设备提供的业 务资源信息的切换请求发送至目标基站。其中，业务资源信息包括：用户设备当前所使用的资源分片标识，包括用户当前在使用哪个资源分片。
步骤302、目标基站接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
步骤303、目标基站根据业务资源的信息获取相应的业务资源；
具体的，目标基站根据业务资源的信息获取相应的业务资源包括：
若目标基站本地缓存中存储业务资源，则目标基站在本地缓存中获取与业务资源的信息对应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，则目标基站向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则目标基站通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
若目标基站存在本地缓存，接收所述远端高速缓存功能实体发送的相应的业务资源之后，或者，通过所述Backhaul回程链路接收源基站发送的相应的业务资源之后，还包括：
目标基站将获取的相应的业务资源存储在本地缓存中。
还是以上述网络架构为例。图示的目标基站可以通过以下几种方式获取业务资源。
一种场景下，如果目标基站本地Cache缓存中存储有所需的业务资源，则目标基站可以在本地Cache缓存中直接获取与业务资源的信息对应的业务资源，而不需要远端高速缓存功能实体进行发送；另一种场景下，如果目标基站中不存在本地缓存或者本地缓存中未存储业务资源，则目标基站向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源，此时若目标基站存在本地缓存，则目标基站可将获取的相应的业务 资源存储在本地缓存中；又一种场景下，如果目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则目标基站通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
步骤304、目标基站向源基站发送切换应答；
目标基站在向用户设备发送获取的相应的业务资源后，向源基站发送切换应答，表示自己已完成切换操作。
步骤305、源基站接收目标基站发送的切换应答；
在目标基站完成所需业务资源的查询与接收操作后，源基站向移动中的用户设备发送重配置消息，该消息用于指示连续为用户设备提供业务资源，具体包括用户切换后是否还有Cache缓存空间，内容是否可连续等信息。用户设备根据该重配置消息重新进行配置，并向目标基站发送重配置完成消息。
目标基站在向源基站发送切换应答后，接收用户设备发送的重配置完成消息并向源基站发送切换完成消息，以使源基站释放存储业务资源的缓存。源基站在接收到目标基站发送的切换完成消息后，脱离和该用户的业务，并释放源基站中存储该用户业务资源的Cache缓存空间。此时该用户需要的业务资源由目标基站来连续提供。
步骤306、目标基站向用户设备发送所获取的相应的业务资源。
目标基站根据自身有无本地Cache缓存情况，将自身本地Cache缓存中储存的相应业务资源转发至用户设备或者直接将来自源基站本地Cache缓存或者远端高速缓存实体的业务资源发送至用户设备。
本实施例中，源基站向目标基站发送携带有源基站为用户设备提供的业务资源的信息的切换请求，目标基站在接收源基站发送的切换请求后，根据业务资源的信息获取相应的业务资源，并向源基站发送切换应答；源基站向用户设备发送用于指示连续为用户设备提供业务资源的重配置消息，并在接收目标基站发送的切换完成信息后，释放存储业务资源的缓存；最后由目标基站向用户设备发送所获取的相应的业务资源。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供 业务资源，保证用户仍然可以正常接收业务资源。
图5是本发明实施例四提供的业务提供方法的信令流程图。如图5所示，实施例四对应了基站切换后目标基站本地缓存内无所需业务资源的实施场景。具体包括：
S501、源基站向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
S502、目标基站接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
以上两步骤中，当用户设备UE在从源基站移动到目标基站时，源基站和目标基站进行切换请求等信息的交互，让目标基站获得源基站为用户设备UE所提供的业务资源的相关信息。
S503、目标基站根据业务资源的信息获取相应的业务资源，具体包括；若目标基站本地缓存中未存储业务资源，则目标基站向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源。
此步骤中，在源基站和目标基站进行切换请求信息等信息交互后，源基站和目标基站开始切换交互过程。目标基站首先查询本地缓存中是否存储有该业务资源，因为该实施场景中，目标基站本地缓存内没有用户设备UE所需的业务资源，所以目标基站对本地缓存不进行处理。而是向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求。
S504、目标基站向源基站发送切换应答；
在目标基站获得相应的业务资源后，目标基站向源基站发送切换应答，告知已获取相应的业务资源信息。
S505、源基站接收目标基站发送的切换应答；
上述步骤在源基站本地缓存Cache，目标基站本地缓存Cache，移动管理实体(Mobility Management Entity，简称MME)，信令网关(Signal Gate Way,简称S-GW)和远端高速缓存功能实体之间建立起新的无线承载。因为目标基站中部署有本地Cache缓存，且目标基站和源基站之间不 存在Backhaul回程链路，所以目标基站接收远端高速缓存功能实体发送的相应的业务资源后，将业务资源存储于目标基站的本地Cache缓存中。
S506、目标基站向用户设备发送所获取的相应的业务资源。
目标基站将所获取并存储于本地Cache缓存中的业务资源发送给用户设备UE，保证用户设备UE的业务连续。
本实施例中，在目标基站本地缓存内无所需业务资源的实施场景下，目标基站向远端高速缓存功能实体发送获取与业务资源的信息相应的业务资源对应的请求，并接收远端高速缓存功能实体发送的相应的业务资源，再存储于本地Cache缓存中并转发至用户设备。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图6是本发明实施例五提供的业务提供方法的信令流程图。如图6所示，实施例五对应目标基站本地没有Cache缓存，则由远端高速缓存功能实体进行业务连续的实施场景。具体包括：
S601、源基站向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
S602、目标基站接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
以上两步骤中，当用户设备UE在从源基站移动到目标基站时，源基站和目标基站进行切换请求等信息的交互，让目标基站获得源基站为用户设备UE所提供的业务资源的相关信息。
S603、目标基站根据业务资源的信息获取相应的业务资源，具体包括；若目标基站不存在本地缓存，则目标基站向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源。
此步骤中，在源基站和目标基站进行切换请求信息等信息交互后，源基站和目标基站开始切换交互过程。目标基站首先查询本地缓存中是否存储有该业务资源，因为该实施场景中，目标基站并未部署本地Cache缓存，且目标基站和源基站之间不存在Backhaul回程链路，所以向远端 高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求。
S604、目标基站向源基站发送切换应答；
在目标基站获得相应的业务资源后，目标基站向源基站发送切换应答，告知已获取相应的业务资源信息。
S605、源基站接收目标基站发送的切换应答；
源基站接收目标基站发送的切换应答之后，还可以向用户设备发送重配置消息，重配置消息用于指示连续为用户设备提供业务资源；
上述步骤在源基站本地缓存Cache，目标基站，移动管理实体(Mobility Management Entity，简称MME)，信令网关(Signal Gate Way,简称S-GW)和远端高速缓存功能实体之间建立起新的无线承载。
S606、目标基站向用户设备发送所获取的相应的业务资源。
因为目标基站没有本地Cache缓存，且目标基站和源基站之间不存在Backhaul回程链路，所以目标基站接收远端高速缓存功能实体发送的相应的业务资源后，直接发送给用户设备UE，保证用户设备UE的业务连续。
本实施例中，在目标基站本地未设置缓存的实施场景下，目标基站向远端高速缓存功能实体发送获取与业务资源的信息相应的业务资源对应的请求，并接收远端高速缓存功能实体发送的相应的业务资源，再直接转发至用户设备。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图7是本发明实施例六提供的业务提供方法的信令流程图。如图7所示，实施例六对应了基站切换后目标基站本地Cache缓存中存储有所需业务资源的实施场景。具体包括：
S701、源基站向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
S702、目标基站接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
以上两步骤中，当用户设备UE在从源基站移动到目标基站时，源基站和目标基站进行切换请求等信息的交互，让目标基站获得源基站为用 户设备UE所提供的业务资源的相关信息。
S703、目标基站根据业务资源的信息获取相应的业务资源，具体包括；若目标基站本地缓存中存储业务资源，则目标基站在本地缓存中获取与业务资源的信息对应的业务资源；
此步骤中，在源基站和目标基站进行切换请求信息等信息交互后，源基站和目标基站开始切换交互过程。目标基站首先查询本地缓存中是否存储有该业务资源，因为该实施场景中，目标基站本地Cache缓存中存储有所需业务资源，所以远端高速缓存功能实体不参与进行业务资源的连续处理。
S704、目标基站向源基站发送切换应答；
在目标基站获得相应的业务资源后，目标基站向源基站发送切换应答，告知已获取相应的业务资源信息。
S705、源基站接收目标基站发送的切换应答；
上述步骤在源基站本地缓存Cache，目标基站本地缓存Cache，移动管理实体(Mobility Management Entity，简称MME)，信令网关(Signal Gate Way,简称S-GW)和远端高速缓存功能实体之间建立起新的无线承载。因为目标基站中部署有本地Cache缓存，所以远端高速缓存功能实体不进行业务连续处理。
S706、目标基站向用户设备发送所获取的相应的业务资源。
目标基站将所获取并存储于本地Cache缓存中的业务资源发送给用户设备UE，保证用户设备UE的业务连续。
本实施例中，在目标基站本地Cache缓存中存储有所需业务资源的实施场景下，直接由目标基站的本地Cache缓存为用户设备提供连续的业务资源。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图8是本发明实施例七提供的业务提供方法的信令流程图。如图8所示，实施例七对应了目标基站不存在本地缓存或者本地缓存中未存储业务资源，但目标基站和源基站之间存在Backhaul回程链路的实施场景。具体包括：
S801、源基站向目标基站发送切换请求，切换请求中携带源基站为 用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
S802、目标基站接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
以上两步骤中，当用户设备UE在从源基站移动到目标基站时，源基站和目标基站进行切换请求等信息的交互，让目标基站获得源基站为用户设备UE所提供的业务资源的相关信息。
S803、目标基站根据业务资源的信息获取相应的业务资源，具体包括；若目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则目标基站通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
此步骤中，在源基站和目标基站进行切换请求信息等信息交互后，源基站和目标基站开始切换交互过程。目标基站首先查询本地缓存中是否存储有该业务资源，因为该实施场景中，目标基站本地缓存内没有用户设备UE所需的业务资源，但是目标基站和源基站之间存在Backhaul回程链路，所以目标基站和源基站之间可通过可用的Backhaul回程链路进行数据传输。因此目标基站可通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源，远端高速缓存功能实体不参与业务连续处理。
S804、目标基站向源基站发送切换应答；
在目标基站获得相应的业务资源后，目标基站向源基站发送切换应答，告知已获取相应的业务资源信息。
S805、源基站接收目标基站发送的切换应答；
上述步骤在源基站本地缓存Cache，目标基站本地缓存Cache，移动管理实体(Mobility Management Entity，简称MME)，信令网关(Signal Gate Way,简称S-GW)和远端高速缓存功能实体之间建立起新的无线承载。因为目标基站中部署有本地Cache缓存，且目标基站和源基站之间存在可用的Backhaul回程链路，所以目标基站通过Backhaul回程链路接收 源基站发送的相应的业务资源。
S806、目标基站向用户设备发送所获取的相应的业务资源。
目标基站有本地Cache缓存时，将获取的业务资源存储于本地Cache缓存中，再发送给用户设备UE，如果没有设置本地缓存时，则直接将业务资源转发给用户设备UE，从而保证用户设备UE的业务连续。
本实施例中，当目标基站和源基站存在Backhaul回程链路时，目标基站在本地没有缓存或本地缓存中未存储业务资源时，可直接利用Backhaul回程链路由源基站向目标基站转发业务资源数据，实现业务连续。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图9是本发明实施例八提供的目标基站的结构示意图。如图9所示，实施例八提供了一种目标基站71，具体包括：
切换接收模块701，用于接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
数据获取模块702，用于根据业务资源的信息获取相应的业务资源；
数据发送模块703，用于向用户设备发送所获取的相应的业务资源；
切换发送模块704，用于向源基站发送切换应答。
其中，业务资源的信息包括用户设备当前所使用的资源分片标识。
具体的，数据获取模块702用于根据业务资源的信息获取相应的业务资源，包括：
若目标基站本地缓存中存储所述业务资源，则数据获取模块702在本地缓存中获取与业务资源的信息对应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，则数据获取模块702向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则数据获取模块702通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
若目标基站本地缓存中未存储业务资源，数据获取模块702接收远端高速缓存功能实体发送的相应的业务资源之后，或者，数据获取模块702通过Backhaul回程链路接收源基站发送的相应的业务资源之后，还包括用于将获取的相应的业务资源存储在本地缓存中。
具体的，切换发送模块704向源基站发送切换应答之后，还用于向源基站发送切换完成消息，以使源基站释放存储业务资源的缓存。
本实施例提供的目标基站，其执行业务提供的方法的具体过程可见图1和图3所示方法实施例的相关描述，此处不再赘述。
本实施例中，目标基站中的切换接收模块可以接收源基站发送的切换请求，数据获取模块再根据业务资源的信息获取相应的业务资源，然后数据发送模块向用户设备发送所获取的相应的业务资源，最后切换发送模块向源基站发送切换应答。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图10是本发明实施例九提供的源基站的结构示意图。如图10所示，本发明提供了一种源基站81，具体包括：
切换发送模块801，用于向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
应答模块802，用于接收目标基站发送的切换应答。
其中，业务资源的信息包括用户设备当前所使用的资源分片标识。
具体的，源基站还可以包括：
切换接收模块803，用于在切换发送模块801向目标基站发送切换请求之后，通过与目标基站之间的Backhaul回程链路，接收目标基站发送的与业务资源的信息对应的业务资源的请求；
数据发送模块804，用于通过Backhaul回程链路向目标基站发送对应的业务资源。
本实施例提供的源基站，其执行业务提供的方法的具体过程可见图2和图3所示方法实施例的相关描述，此处不再赘述。
本实施例中，源基站的切换发送模块向目标基站发送切换请求，在切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源应答模块再接收目标基站发送的切换应答。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图11是本发明实施例十提供的目标基站的结构示意图。如图11所示，实施例十提供了一种目标基站91，具体包括：
接收器901，用于接收源基站发送的切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息；
处理器902，用于根据业务资源的信息获取相应的业务资源；
发射器903，用于向用户设备发送所获取的相应的业务资源；
还用于向源基站发送切换应答。
其中，业务资源的信息包括用户设备当前所使用的资源分片标识。
具体的，处理器902用于根据业务资源的信息获取相应的业务资源，包括：
若目标基站本地缓存中存储业务资源，则处理器902在本地缓存中获取与业务资源的信息对应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，则处理器902向远端高速缓存功能实体发送获取与业务资源的信息对应的业务资源的请求，并接收远端高速缓存功能实体发送的相应的业务资源；或者，
若目标基站不存在本地缓存或者本地缓存中未存储业务资源，且目标基站和源基站之间存在Backhaul回程链路，则处理器902通过Backhaul回程链路向源基站发送获取与业务资源的信息对应的业务资源的请求，并通过Backhaul回程链路接收源基站发送的相应的业务资源。
若目标基站本地缓存中未存储业务资源，处理器902接收远端高速缓存功能实体发送的相应的业务资源之后，或者，处理器902通过Backhaul回程链路接收源基站发送的相应的业务资源之后，还包括用于将获取的相应的业务资源存储在本地缓存中。
具体的，发射器903向源基站发送切换应答之后，还用于向源基站发送切换完成消息，以使源基站释放存储业务资源的缓存。
本实施例提供的目标基站，其执行业务提供的方法的具体过程可见图1和图3所示方法实施例的相关描述，此处不再赘述。
本实施例中，目标基站中接收器可以接收源基站发送的切换请求；目标基站的处理器再根据业务资源的信息获取相应的业务资源；然后目标基站的发射器向用户设备发送所获取的相应的业务资源；最后目标基站的发射器向源基站发送切换应答。这样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
图12是本发明实施例十一提供的源基站的结构示意图。如图12所示，本发明提供了一种源基站92，具体包括：
发射器1001，用于向目标基站发送切换请求，切换请求中携带源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；
处理器1002，用于接收目标基站发送的切换应答。
其中，业务资源的信息包括用户设备当前所使用的资源分片标识。
具体的，源基站还可以包括：
接收器1003，用于在发射器1001向目标基站发送切换请求之后，通过与目标基站之间的Backhaul回程链路，接收目标基站发送的与业务资源的信息对应的业务资源的请求；
可选的，发射器1001还可以用于通过Backhaul回程链路向目标基站发送对应的业务资源。
本实施例提供的源基站，其执行业务提供的方法的具体过程可见图2和图3所示方法实施例的相关描述，此处不再赘述。
本实施例中，源基站的发射器向目标基站发送切换请求，在切换请求中携带所述源基站为用户设备提供的业务资源的信息，以使得目标基站根据业务资源的信息获取相应的业务资源，并向用户设备发送所获取的相应的业务资源；源基站的处理器接收目标基站发送的切换应答。这 样实现了用户在源基站向目标基站切换时，目标基站为用户连续提供业务资源，保证用户仍然可以正常接收业务资源。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (16)

  1. 一种业务提供的方法，其特征在于，包括：
    目标基站接收源基站发送的切换请求，所述切换请求中携带所述源基站为用户设备提供的业务资源的信息；
    所述目标基站根据所述业务资源的信息获取相应的业务资源；
    所述目标基站向所述用户设备发送所获取的相应的业务资源；
    所述目标基站向所述源基站发送切换应答。
  2. 根据权利要求1所述的方法，其特征在于，所述业务资源的信息包括：所述用户设备当前所使用的资源分片标识。
  3. 根据权利要求1或2所述的方法，其特征在于，所述目标基站根据所述业务资源的信息获取相应的业务资源，具体包括：
    若所述目标基站本地缓存中存储所述业务资源，则所述目标基站在本地缓存中获取与所述业务资源的信息对应的业务资源；或者，
    若所述目标基站不存在本地缓存或者本地缓存中未存储所述业务资源，则所述目标基站向远端高速缓存功能实体发送获取与所述业务资源的信息对应的业务资源的请求，并接收所述远端高速缓存功能实体发送的相应的业务资源；或者，
    若所述目标基站不存在本地缓存或者本地缓存中未存储所述业务资源，且所述目标基站和所述源基站之间存在Backhaul回程链路，则所述目标基站通过所述Backhaul回程链路向所述源基站发送获取与所述业务资源的信息对应的业务资源的请求，并通过所述Backhaul回程链路接收所述源基站发送的相应的业务资源。
  4. 根据权利要求3所述的方法，其特征在于，若所述目标基站本地缓存中未存储所述业务资源，所述接收所述远端高速缓存功能实体发送的相应的业务资源之后，或者，所述通过所述Backhaul回程链路接收所述源基站发送的相应的业务资源之后，还包括：
    所述目标基站将获取的相应的业务资源存储在本地缓存中。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述目标基站向所述源基站发送切换应答之后，还包括：
    所述目标基站向所述源基站发送切换完成消息，以使所述源基站释 放存储所述业务资源的缓存。
  6. 一种业务提供的方法，其特征在于，包括：
    源基站向目标基站发送切换请求，所述切换请求中携带所述源基站为用户设备提供的业务资源的信息，以使得所述目标基站根据所述业务资源的信息获取相应的业务资源，并向所述用户设备发送所获取的相应的业务资源；
    所述源基站接收所述目标基站发送的切换应答。
  7. 根据权利要求6所述的方法，其特征在于，所述业务资源的信息包括：所述用户设备当前所使用的资源分片标识。
  8. 根据权利要求6或7所述的方法，其特征在于，所述源基站向目标基站发送切换请求之后，还包括：
    所述源基站通过与所述目标基站之间的Backhaul回程链路，接收所述目标基站发送的与所述业务资源的信息对应的业务资源的请求；
    所述源基站通过所述Backhaul回程链路向所述目标基站发送对应的业务资源。
  9. 一种目标基站，其特征在于，包括：
    切换接收模块，用于接收源基站发送的切换请求，所述切换请求中携带所述源基站为用户设备提供的业务资源的信息；
    数据获取模块，用于根据所述业务资源的信息获取相应的业务资源；
    数据发送模块，用于向所述用户设备发送所获取的相应的业务资源；
    切换发送模块，用于向所述源基站发送切换应答。
  10. 根据权利要求9所述的目标基站，其特征在于，所述业务资源的信息包括：所述用户设备当前所使用的资源分片标识。
  11. 根据权利要求9或10所述的目标基站，其特征在于，所述数据获取模块具体用于：
    若所述目标基站本地缓存中存储所述业务资源，则所述数据获取模块在本地缓存中获取与所述业务资源的信息对应的业务资源；或者，
    若所述目标基站不存在本地缓存或者本地缓存中未存储所述业务资 源，则所述数据获取模块向远端高速缓存功能实体发送获取与所述业务资源的信息对应的业务资源的请求，并接收所述远端高速缓存功能实体发送的相应的业务资源；或者，
    若所述目标基站不存在本地缓存或者本地缓存中未存储所述业务资源，且所述目标基站和所述源基站之间存在Backhaul回程链路，则所述数据获取模块通过所述Backhaul回程链路向所述源基站发送获取与所述业务资源的信息对应的业务资源的请求，并通过所述Backhaul回程链路接收所述源基站发送的相应的业务资源。
  12. 根据权利要求9所述的目标基站，其特征在于，若所述目标基站本地缓存中未存储所述业务资源，所述数据获取模块接收所述远端高速缓存功能实体发送的相应的业务资源之后，或者，所述数据获取模块通过所述Backhaul回程链路接收所述源基站发送的相应的业务资源之后，还用于将获取的相应的业务资源存储在本地缓存中。
  13. 根据权利要求9-12任一项所述的目标基站，其特征在于，所述切换发送模块向所述源基站发送切换应答之后，还用于向所述源基站发送切换完成消息，以使所述源基站释放存储所述业务资源的缓存。
  14. 一种源基站，其特征在于，包括：
    切换发送模块，用于向目标基站发送切换请求，所述切换请求中携带所述源基站为用户设备提供的业务资源的信息，以使得所述目标基站根据所述业务资源的信息获取相应的业务资源，并向所述用户设备发送所获取的相应的业务资源；
    应答模块，用于接收所述目标基站发送的切换应答。
  15. 根据权利要求14所述的源基站，其特征在于，所述业务资源的信息包括：所述用户设备当前所使用的资源分片标识。
  16. 根据权利要求14或15所述的源基站，其特征在于，还包括：
    切换接收模块，用于在所述切换发送模块向目标基站发送切换请求之后，通过与所述目标基站之间的Backhaul回程链路，接收所述目标基站发送的与所述业务资源的信息对应的业务资源的请求；
    数据发送模块，用于通过所述Backhaul回程链路向所述目标基站发送对应的业务资源。
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