CN109788577A

CN109788577A - Dual link communication means, device, base station and user face nodes

Info

Publication number: CN109788577A
Application number: CN201711103646.2A
Authority: CN
Inventors: 戚彩霞; 银宇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2019-05-21

Abstract

The invention relates to a kind of dual link communication means, device, base station and user face nodes.This method comprises: first base station determines that the corresponding data packet of the first packet identification is sent by the second base station；First base station sends the corresponding relationship of the second base station data packet forwarding information and the first packet identification to UPF, corresponding relationship so as to UPF based on the second base station data packet forwarding information and the first packet identification sends the corresponding data packet of the first packet identification to UE by the second base station.By the embodiment of the present application, in next-generation communication network, it can be connected in user by doubly-linked, service is provided, can more reasonably utilize Internet resources, the user experience is improved.

Description

Dual link communication means, device, base station and user face nodes

Technical field

The invention relates to field of communication technology more particularly to a kind of dual link communication means, device, base station and User face nodes.

Background technique

In next generation mobile communication network, user equipment generally by establishing PDU session with base station and user face nodes, To realize the transmission of data packet, still, the increasingly increase with people to wireless network demand, the load of the network equipment is not yet It is disconnected to aggravate, how more reasonably to become technical problem in the urgent need to address using Internet resources.

Summary of the invention

The embodiment of the present application provides a kind of dual link communication means, device, base station and user face nodes.It is closed with realizing Reason provides service using Internet resources for user.

In a first aspect, providing a kind of dual link communication means.This method comprises: first base station determines the first packet identification Corresponding data packet is sent by the second base station；First base station sends the second base station data packet forwarding information and the first grouping to UPF The corresponding relationship of mark, the corresponding relationship so as to UPF based on the second base station data packet forwarding information and the first packet identification, passes through Second base station sends the corresponding data packet of the first packet identification to UE.Wherein, first base station can be determined based on dual link strategy The corresponding data packet of first packet identification is sent by the second base station, and dual link strategy can be locally configured, and can also be tieed up from operation Other nodes such as shield center (Operation&maintenance, O&M) or policy control functions obtain.Pass through the application reality Example is applied, in next-generation communication network, user can be connected in by doubly-linked, service is provided, can more reasonably provided using network Source, the user experience is improved.

In optionally realizing at one, determine that the corresponding data packet of the first packet identification is sent out by the second base station in first base station Before sending, further includes: first base station receives the PDU session identification and the first packet identification that session management node is sent.Pass through this Application embodiment may be implemented, and determine the first packet identification from session management node, for example, the grouping that session management node is sent 5QI in filter list or qos parameter.

In another is optionally realized, determine the corresponding data packet of the first packet identification by the second base station in first base station After transmission, further includes: first base station sends PDU session identification, QoS parameter and the forwarding of UPF data packet to the second base station Information, so that PDU session is established in the second base station；First base station receives the second base station data packet that the second base station is sent and forwards letter Breath.By the embodiment of the present application, when the second base station does not set up PDU session, there can be first base station to indicate that the second base station is established PDU session further realizes the foundation of dual link.

In another is optionally realized, further includes: first base station saves the second base station data packet forwarding information.Pass through this Application embodiment may be implemented, and when updating PDU session next time, can obtain the second base station data packet forwarding letter from local Breath, without obtaining again from the second base station, saves signaling overheads.

In another is optionally realized, determine the corresponding data packet of the first packet identification by the second base station in first base station After transmission, further includes: first base station sends PDU session identification and QoS parameter to the second base station, so as to the second base station Update PDU session；First base station obtains the second base station data packet forwarding information being locally stored.It can be with by the embodiment of the present application It realizes, when the second base station had built up PDU session, first base station notifies the second base station to update PDU session, to realize new industry The transmission of the data packet of business.Signaling overheads is saved by the local second base station data packet forwarding information that obtains.

In another is optionally realized, further includes: first base station determines that second packet identifies corresponding data packet by the One base station is sent；The corresponding relationship that first base station sends first base station data packet forwarding information to UPF and second packet identifies, with Just the corresponding relationship that UPF is identified based on first base station data packet forwarding information and second packet is sent by first base station to UE Second packet identifies corresponding data packet.It may be implemented by the embodiment of the present application, which data packet of first base station decision is by One base station is sent, which data packet sends by the second base station, so as in next-generation communication network, by dual link, more rationally Utilize Internet resources.

In another is optionally realized, first base station determines that the corresponding data packet of the first packet identification is sent out by the second base station Send and determine that second packet identifies corresponding data packet and sent by first base station, comprising: first base station is according to dual link strategy Determine the corresponding data packet of the first packet identification sent by the second base station and determined second packet identify corresponding data packet by First base station is sent.

In another is optionally realized, the first packet identification includes at least one of following: at least one packet filter, At least one packet filter mark or the instruction of at least one 5G service quality.

In another is optionally realized, second packet mark includes at least one of following: at least one packet filter, At least one packet filter mark or the instruction of at least one 5G service quality.

Second aspect provides a kind of dual link communication means.It is sent this method comprises: first base station receives the second base station PDU session identification, first service mass parameter and UPF data packet forwarding information；First base station is joined according to first service quality Number establishes the corresponding PDU session of PDU session identification；First base station sends first base station data packet forwarding information to the second base station. By the embodiment of the present application, in next-generation communication network, it can be connected in user by doubly-linked, service is provided, it can be more reasonable Using Internet resources, the user experience is improved.

In optionally being realized at one, further includes: first base station receives the PDU session identification and second that the second base station is sent QoS parameter；First base station updates the corresponding PDU session of PDU session identification according to second service mass parameter.

The third aspect, the embodiment of the present application provide a kind of dual link communication means.It include: that user face nodes receive first The corresponding relationship for the second base station data packet forwarding information and the first packet identification that base station is sent；When the data packet received is corresponding Package identification when being matched with the first packet identification, user face nodes are based on the second base station data packet forwarding information and first point The corresponding relationship of group mark sends data packet to UE by the second base station.By the embodiment of the present application, in next-generation communication network In, it can be connected in user by doubly-linked, service is provided, can more reasonably utilize Internet resources, the user experience is improved.

In optionally being realized at one, when the package identification that data packet includes and the first packet identification mismatch, use Family face node sends data packet to UE by first base station.

In another is optionally realized, further includes: user face nodes receive the first base station data that first base station is sent The corresponding relationship of packet forwarding information and second packet mark；When the package identification that data packet includes is matched with second packet mark When, the corresponding relationship that user face nodes are identified based on first base station data packet forwarding information and second packet passes through first base station Data packet is sent to UE.

In another is optionally realized, the first packet identification or second packet mark include at least one of following: extremely A few packet filter, at least one packet filter mark or the instruction of at least one 5G service quality.

Fourth aspect provides a kind of base station, which, which has, realizes above-mentioned first aspect and during it optionally realizes Base station behavior function.The function can also execute corresponding software realization by hardware realization by hardware.Institute It states hardware or software includes one or more modules corresponding with above-mentioned function.

5th aspect, provides a kind of base station, which, which has, realizes above-mentioned second aspect and during it optionally realizes Base station behavior function.The function can also execute corresponding software realization by hardware realization by hardware.Institute It states hardware or software includes one or more modules corresponding with above-mentioned function.

6th aspect, provides a kind of user face nodes, the terminal have realize the above-mentioned third aspect and its optionally The function of user face nodes behavior in realization.The function can also be executed corresponding by hardware realization by hardware Software realization.The hardware or software include one or more modules corresponding with above-mentioned function.

7th aspect, provides a kind of computer readable storage medium, meter is stored on the computer readable storage medium Calculation machine program, the computer program are realized any in above-mentioned first aspect, second aspect and the third aspect when being executed by processor Method described in one or more aspects.

Eighth aspect provides a kind of computer program product comprising instruction, when the instruction of computer program product exists When being run on computer, so that either side or more in the above-mentioned first aspect of computer execution, second aspect and the third aspect Method described in aspect.

9th aspect, provides a kind of communication system, which includes fourth aspect, the 5th aspect and the 6th aspect Equipment described in middle either side or various aspects.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram of a communication network structure provided by the embodiments of the present application；

Fig. 2 is a kind of architecture of base station schematic diagram provided by the embodiments of the present application；

Fig. 3 is another architecture of base station schematic diagram provided by the embodiments of the present application；

Fig. 4 is a kind of user face nodes structural schematic diagram provided by the embodiments of the present application；

Fig. 5 is a kind of dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application；

Fig. 6 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application；

Fig. 7 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application；

Fig. 8 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application；

Fig. 9 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application；

Figure 10 is another architecture of base station schematic diagram provided by the embodiments of the present application；

Figure 11 is another architecture of base station schematic diagram provided by the embodiments of the present application；

Figure 12 is another user face nodes structural schematic diagram provided by the embodiments of the present application.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, the embodiment of the present application is described.

The embodiment of the present application provides a kind of dual link communication means and equipment, is applied to next-generation (5G) communication network. It for the data packet of same session, can be forwarded by different base stations, improve handling capacity, resource utilization can also be improved.

Fig. 1 is a kind of schematic diagram of a communication network structure provided by the embodiments of the present application.

As shown in connection with fig. 1, in the embodiment of the present application, which includes: user equipment, base station, mobile management section Point, session management node, user face nodes and data network etc..Wherein, mobile management nodes, session management node and User face nodes can be one or more servers in core network in communication network.Base station can be to connect in communication network Enter one or more equipment in network, for example, the base station can be new wireless base station (New Radio NodeB, gNB), or Person is evolved base station (evolved eNB).Access net and core net may be collectively referred to as mobile network, for example, public land moves Dynamic network (public land mobile network, PLMN).Data network can also be known as external relative to mobile network Data network.User equipment can be communicated by access network insertion core network with data network, for example, user equipment GNB Access Core Network can be passed through.When data network has data to need to send to user equipment, user face nodes are by data It is sent to the base station connecting with user equipment, user equipment is sent to by base station.

In the embodiment of the present application, user equipment is referred to as terminal (terminal), can be directed to user's offer The equipment of voice and/or data connectivity has the handheld device of wireless connecting function or is connected to radio modem Other processing equipments.Wireless terminal can be communicated through RAN with one or more core nets, and wireless terminal can be movement Terminal, such as mobile phone (or be " honeycomb " phone) and the computer with mobile terminal device, for example, it may be portable Formula, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchanged with wireless access network language and/or Data.For example, personal communication service (personal communication service, PCS) phone, wireless phone, session Initiation protocol (session initiated protocol, SIP) phone, wireless local loop (wireless local Loop, WLL) it stands, the equipment such as personal digital assistant (personal digital assistant, PDA).Wireless terminal can also be with Referred to as system, subscriber unit (subscriber unit), subscriber station (subscriber station), movement station (mobile Station), mobile station (mobile), distant station (remote station), access point (access point), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), user equipment (user device) or user equipment (user equipment), in the embodiment of the present application It does not limit.Divided according to type of service, the present embodiments relate to UE, can be above to rate and mobility have compared with Terminal device of high demand, such as mobile phone, multimedia equipment etc. are also possible to the terminal of Internet of Things, can also be car networking Terminal.

User equipment can realize that access internet, that is, the user equipment can pass through mobile network by mobile network Network is communicated with data network.For example, the user equipment can be communicated by mobile network with other users equipment, visit Ask website etc..In the transmitting-receiving for needing data or signaling in communication process between user equipment and mobile network and data network And processing.

User equipment needs the base station Access Core Network by current location when with data network communications.Wherein, it uses The base station of family equipment current location may include two, base station 101 and base station 102 as shown in Figure 1.User equipment current location Two base stations in, one is master base station, the other is from base station.Master base station was communicated with user equipment and equipment of the core network Cheng Zhong has the function of signaling plane, for example, master base station is responsible for carrying out signalling communication with user equipment and core network, establishes and uses The signaling connection of family equipment to mobile network are connected with user face.Master base station and from base station can be new wireless base station or evolved Base station.

It in one example, as shown in connection with fig. 1, is master base station with base station 101, base station 102 is for base station, in user When equipment needs to carry out new business, PDU session establishment or more new technological process are triggered.The business that this is new when 101 decision of base station is corresponding Data packet when being forwarded by base station 102, PDU session is established in notice base station 102, and by the corresponding user face nodes of PDU session Data packet forwarding information be sent to base station 102.The data packet forwarding information of the PDU session is distributed in base station 102, and by the base station 102 data packet forwarding information is sent to base station 101.Base station 101 is by the corresponding packet identification of the new business and base station 102 Data packet forwarding information is sent to user face nodes.After user face nodes receive the packet identification corresponding downlink data packet, The downlink data packet is sent to base station 102.

Optionally, when 101 decision new business corresponding data packet in base station is forwarded by base station 101, base station 101 can be incited somebody to action The data packet forwarding information of the corresponding packet identification of the new business and base station 101 is sent to user face nodes.When user face is saved After point receives the corresponding downlink data packet of the packet identification, which is sent to base station 101.

In another example, as shown in connection with fig. 1, be master base station with base station 101, base station 102 be for base station, with When family equipment needs to carry out new business, PDU session establishment or more new technological process are triggered.It base station 101 can be with the decision PDU session In all business of carrying, the data packet of which business is forwarded by base station 102, which business data packet is forwarded by base station 101, and The corresponding relationship of the corresponding packet identification of business and the data packet forwarding information of base station is sent to user face nodes.When user face After node receives downlink data packet, according to the corresponding packet identification of downlink data packet, it is determined that passing through the data packet of base station 101 Forwarding information or the data packet forwarding information of base station 102 are sent.

As shown in Fig. 2, master base station 101 include transceiver 201, processor 202 and memory 203, transceiver 201 be used for User equipment, mobile management nodes, session management node, other base stations or user face nodes are communicated, wherein transceiver 201 may include wireless communication module and wire communication module, and wireless communication module is mainly used for carrying out with user equipment wireless Communication, wire communication module are mainly used for carrying out wire communication with the network equipment；Memory 203 is for storing program；Processor 202 for executing the program of the storage of memory 203, to realize the transmitting-receiving and processing function of the data or signaling of master base station.

Specifically, processor 202 is for determining that the corresponding data packet of the first packet identification is sent by the second base station；

Transceiver 201 is used to send pair of the second base station data packet forwarding information and the first packet identification to user face nodes It should be related to, the corresponding relationship so as to user face nodes based on the second base station data packet forwarding information and the first packet identification passes through Second base station sends the corresponding data packet of the first packet identification to user equipment.

Optionally, transceiver 201 is also used to, and receives the PDU session identification that SMF is sent, QoS parameter and first point Group mark.

Optionally, transceiver 201 is also used to send PDU session identification, QoS parameter and UPF data to the second base station Packet forwarding information, so that PDU session is established in the second base station；

Transceiver 201 is also used to receive the second base station data packet forwarding information that second base station is sent.

Optionally, memory 203 is for saving the second base station data packet forwarding information.

Optionally, transceiver 201 is also used to send PDU session identification and QoS parameter to second base station, with Toilet states the second base station and updates PDU session；

Processor 202 is also used to obtain the second base station data packet forwarding information being locally stored.

Optionally, processor 202 is also used to determine that second packet identifies corresponding data packet and sent by first base station；

What transceiver 201 was also used to identify to user face nodes transmission first base station data packet forwarding information and second packet Corresponding relationship, the corresponding pass identified so as to user face nodes based on the first base station data packet forwarding information and second packet System sends second packet to user equipment by first base station and identifies corresponding data packet.

As shown in figure 3, from base station 102 include transceiver 301, processor 302 and memory 303, transceiver 301 be used for User equipment, mobile management nodes, session management node, other base stations or user face nodes are communicated, wherein transceiver 301 may include wireless communication module and wire communication module, and wireless communication module is mainly used for carrying out with user equipment wireless Communication, wire communication module are mainly used for carrying out wire communication with the network equipment；Memory 303 is for storing program；Processor 302 for executing the program of the storage of memory 303, to realize from the data of base station or the transmitting-receiving and processing function of instruction.

Specifically, transceiver 301 is used to receive PDU session identification, QoS parameter and the user face of master base station transmission Node data packet forwarding information；

Processor 302 is used to establish the corresponding PDU session of PDU session identification according to first service mass parameter；

Transceiver 301 is also used to send first base station data packet forwarding information to second base station.

Optionally, transceiver 301 is also used to receive the PDU session identification and QoS parameter of the second base station transmission；

Processor 302 is also used to update the corresponding PDU meeting of the PDU session identification according to the second service mass parameter Words.

Mobile management nodes have the mobile management of user equipment, registration management, connection management, Lawful Interception, support to pass The functions such as session management information, access authentication and insertion authority between defeated user equipment and session management node.For example, access With mobile management function to ps domain (access and mobility function, AMF).User equipment is before establishing PDU session It needs to be registered in mobile management nodes.In establising or updating PDU conversation procedure, mobile management nodes are mainly used for transmitting Session management information between user equipment and session management node.

Session management node be used for user equipment session establishment, update or deletion, user equipment IP address distribution and Management, user face nodes selection and service quality (Quality of Service, QoS) decision etc..For example, conversation management functional (Session Management Function, SMF).

Specifically, session management node can be user face nodes distributing user face node data packet forwarding information, and will The user face nodes data packet forwarding information is sent to user face nodes and mobile management nodes, so that mobile management nodes will The user face nodes data packet forwarding information is sent to master base station.

Wherein, data packet forwarding information includes IP address, can also be comprising in Tunnel End Point Identifier or other agreements Mark.For example, the data packet forwarding information of user face nodes includes the IP address and Tunnel End Point Identifier, master of user face nodes Base station data packet forwarding information includes the IP address of master base station and Tunnel End Point Identifier, from base station data packet forwarding information includes IP address and Tunnel End Point Identifier from base station.

Session management node can also obtain charging plan to policing feature node during establishing PDU session It omits and the information such as qos policy.During updating PDU session, session management node can be from policing feature node updates meter Take the information such as strategy and qos policy.

The corresponding qos parameter of PDU session can be sent to master base station by mobile management nodes by session management node, should Qos parameter may include 5G QoS instruction (5G QoS indicator, 5QI), distribution and reservation priority (allocation And retention priority, ARP), guarantee stream bandwidth (guaranteed flow bit rate, GFBR) and max-flow Bandwidth (maximum flow bit rate, MFBR) etc..The qos parameter can be new industry during PDU session updates The qos parameter of business.So that master base station carries out dual link strategic decision-making according to the qos parameter.

User face nodes have the function of data packet by with Lawful Interception etc., for forward user equipment and data network it Between business data packet.For example, UPF.

User face nodes are after receiving business data packet, according to the package identification of business datum packet header, in conjunction with grouping The corresponding relationship of mark and base station determines that the business data packet, which is destined to master base station, to be also destined to from base station.Wherein, it uses Family face node can receive the packet identification of master base station transmission and the corresponding relationship of base station.

For example, user face nodes receive the first packet identification of master base station transmission and the corresponding relationship from base station, then use Family face node is after receiving data packet, if the package identification in the data packet is matched with the first packet identification, by the number It is sent to according to packet from base station, data packet default is sent to master base station if mismatching, or abandon the data packet.

Alternatively, user face nodes receive the corresponding relationship of the second packet mark and master base station of master base station transmission, if should Package identification in data packet match with second packet mark, then sends the packet to master base station, if mismatch, with Then data packet default is sent to from base station when family face node exists from base station data packet forwarding information, or abandons the data Packet.

Alternatively, if the first packet identification that user face nodes receive master base station transmission and corresponding relationship from base station, and The corresponding relationship of second packet mark and master base station, then user face nodes are after receiving data packet, if in the data packet Packet identification is matched with the first packet identification, then is sent the packet to from base station, will if matching with second packet mark The data packet is sent to master base station, data packet default is sent to master base station if all mismatching, or abandon the data packet.

Wherein, packet identification may include following one or more: at least one packet filter, at least one was grouped Filter mark or at least one 5QI.

As shown in figure 4, user face nodes 400 include transceiver 401, processor 402 and memory 403, transceiver 401 is used It is communicated in base station, mobile management nodes or session management node etc.；Memory 403 is for storing program；Processor 402 For executing the program of the storage of memory 403, to realize the data of user face nodes or the transmitting-receiving of instruction and processing function.

Specifically, transceiver 401 is used to receive the second base station data packet forwarding information and first point that first base station is sent The corresponding relationship of group mark；

Processor 402 is used for, when the corresponding package identification of the data packet received is matched with the first packet identification, base In the corresponding relationship of the second base station data packet forwarding information and the first packet identification, number is sent to user equipment by the second base station According to packet.

Optionally, processor 402 is also used to when the package identification that data packet includes and the first packet identification mismatch, The data packet is sent to user equipment by first base station.

Optionally, transceiver 401 is also used to receive the first base station data packet forwarding information and second of first base station transmission The corresponding relationship of packet identification；

Processor 402 is also used to, and when the package identification that data packet includes is matched with second packet mark, is based on first The corresponding relationship of base station data packet forwarding information and second packet mark, sends the data to user equipment by first base station Packet.

Communication network can also include policy control node, which being capable of support policy frame and strategy Rule.For example, policy control functions (policy control function, PCF).

The communication network can also include uniform data management function entity (unified data management, UDM), which has the processing of certification certificate, user's identifying processing, access mandate, registration and mobile management, subscription management And the functions such as short message managing.For example, during PDU session establishment, if there is no user equipment meeting on session management node Words manage relevant subscription data, then user equipment obtains subscription data to uniform data management function.

Wherein, UE is connect with base station by Uu interface；Signaling between base station and AMF entity passes through N2 interface；AMF entity with Signaling between SMF entity is transmitted by N11 interface；Signaling between SMF entity and UPF entity is transmitted by N4.It needs to illustrate , for details, reference can be made to 3GPP standards for the definition of Uu interface, N2 interface, N11 interface and N4 interface.

The embodiment of the present application is described further below with reference to specific example.

Fig. 5 is a kind of dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application.As shown in figure 5, should Method specifically includes:

S510, first base station determine that the corresponding data packet of the first packet identification is sent by the second base station.Wherein, first base station It can be master base station, the second base station is from base station.

Wherein, first base station can determine the corresponding data packet of the first packet identification by the second base station according to dual link strategy It sends.

Dual link strategy can be locally configured in first base station, can also be from operation and maintenance center (Operation and Maintenance, OandM) or other nodes such as policy control functions obtain.

Dual link strategy can be 5QI list and its base station of corresponding forwarding service data packet；Or it was grouped The base station of filter identification list and its corresponding forwarding service data packet.For example, dual link strategy can be such as 2 institute of the following table 1 or table Show.

Table 1

5QI	Base station:
		5QI 2,5QI 3,5QI 4	First base station
5QI 1,5QI 7,5QI 8	Second base station

Table 2

Packet filter mark	Base station
		Mark 1, mark 2, mark 3	First base station
Mark 4, mark 5, mark 6	Second base station

First base station can also determine that the corresponding data packet of the first packet identification is sent by the second base station according to load condition. When being more than 50% such as the CPU of first base station, determine that the corresponding data packet of the new business is forwarded by the second base station.

In addition, in PDU session establishment or renewal process, first base station can be based on dual link whenever having new business Strategy is determining, the corresponding relationship of the new business of the PDU session corresponding data packet and base station, that is, the new industry of the PDU session The corresponding relationship of corresponding packet identification and the first base station of being engaged in or the second base station.

S520, first base station send pair of the second base station data packet forwarding information and the first packet identification to user face nodes It should be related to.

User equipment can trigger when needing to carry out new business and establish or update PDU session process.It is establising or updating In PDU conversation procedure, first base station determines the corresponding relationship of the first packet identification Yu the second base station according to dual link strategy, and to User face nodes send the corresponding relationship.

In one example, it when establishing PDU session, needs to establish the user face connection of PDU session, that is, makes user Equipment access base station (for example, first base station or second base station) and user face nodes establish connection, such user face nodes and base The uplink and downlink data packet of user equipment can be forwarded between standing.

For example, session management node is user face section during establishing the connection of the second base station and user face nodes The second base station data packet forwarding information is distributed in point distributing user face node data packet forwarding information, the second base station oneself.Session pipe Reason node needs user face nodes data packet forwarding information being sent to user face nodes and first base station (master base station), by first User face nodes data packet forwarding information is sent to the second base station by base station.

When first base station foundation dual link strategy progress decision, determine the corresponding data packet of the first packet identification by the second base Stand transmission when, can from the second base station obtain the second base station data packet forwarding information.For example, can be in first base station to the second base Stand send user face nodes data packet forwarding information response in carry the second base station data packet forwarding information.

The corresponding relationship of second base station data packet forwarding information and the first packet identification is sent to user face by first base station Node establishes connection in this way, mutually knowing the data packet forwarding information of other side between the second base station and user face nodes, into one Step is realized to be carried out data transmission by PDU session.

It in another example, may be between the second base station and user face nodes during updating PDU session Connection is established, mutually knows the data packet forwarding information of other side.At this point, when PDU session needs to carry new business, Ke Yigeng The PDU session of new second base station and user face nodes.Specifically, it when first base station foundation dual link strategy progress decision, determines When the corresponding data packet of first packet identification is sent by the second base station, available second base station data packet forwarding information.Due to The connection of the second base station and user face nodes was established before, so first base station can read the second base station data packet of storage Forwarding information, naturally it is also possible to obtain the second base station data packet forwarding information from the second base station；First base station is by the second base station number User face nodes are sent to according to the corresponding relationship of packet forwarding information and the first packet identification.First base station can also notify the second base It stands and updates PDU session, send PDU session updates and request to the second base station, it is corresponding to carry new business in PDU session updates request QoS parameter and the information such as PDU session identification.

During updating PDU session, connection is had built up between first base station and user face nodes, but the second base It stands and does not set up connection between user face nodes.At this point, then PDU session can be established in the second base station, and update user face The PDU session of node.Specifically, when first base station foundation dual link strategy progress decision, determine that the first packet identification is corresponding When data packet is sent by the second base station, first base station by user face nodes data packet forwarding information be sent to the second base station (due to, Connection is had built up between first base station and user face nodes, so first base station is stored with user face nodes data packet forwarding letter Breath, naturally it is also possible to obtain user face nodes data packet forwarding information to session management node).And first base station is from the second base It stands and obtains the second base station data packet forwarding information, for example, user face nodes data can be sent to the second base station in first base station The second base station data packet forwarding information is carried in the response of packet forwarding information.First base station is by the second base station data packet forwarding information User face nodes are sent to the corresponding relationship of the first packet identification, in this way, mutually knowing between the second base station and user face nodes The data packet forwarding information of road other side, establishes connection, further realizes and is carried out data transmission by PDU session.

First packet identification can be at least one packet filter or at least one packet filter mark, such as first Packet identification can be packet filter list or packet filter identification list.

First packet identification can also be at least one 5QI, such as the first packet identification can be 5QI list.Another In a embodiment, when first base station determine new business corresponding second packet mark and first base station to it is corresponding when first base station can To send the corresponding relationship of second packet mark and first base station data packet forwarding information to user face nodes.

S530, when the corresponding packet identification of the data packet received is matched with the first packet identification, user face nodes base In the corresponding relationship of the second base station data packet forwarding information and the first packet identification, being sent by the second base station to user equipment should Data packet.

If the first packet identification is at least one 5QI, user face nodes obtain data packet header after receiving data packet Package identification, the package identification be data packet source IP address, purpose IP address, source port number, destination slogan With the information such as protocol number.Packet filter list and the corresponding relationship of 5QI is locally stored in user face nodes, by matching this point The corresponding relationship of set filter list and 5QI knows the corresponding 5QI of the data packet, and then user face nodes match the data packet The 5QI and the second base station data packet forwarding information or the forwarding of first base station data packet that corresponding 5QI and first base station are sent believe The data packet is passed through the second base station data packet forwarding information or first base station if successful match by the corresponding relationship of breath Data packet forwarding information is sent to the second base station or first base station.If matching is unsuccessful, default passes through first base station number It is sent to first base station according to packet forwarding information, or abandons the data packet.

If the first packet identification is that at least one packet filter or packet filter identify, user face nodes are being received After data packet, user face nodes obtain the package identification of data packet header, by the data packet mark for matching the data packet header Know the corresponding pass with packet filter list and the second base station data packet forwarding information or first base station data packet forwarding information It is (or corresponding relationship of packet filter identification list and the second base station data packet forwarding information), it, will if successful match The data packet by the second base station data packet forwarding information or first base station data packet forwarding information be sent to the second base station or Person's first base station.If matching is unsuccessful, default is sent to first base station by first base station data packet forwarding information, or Abandon the data packet.

First base station or the second base station send the packet to user after receiving the corresponding data packet of PDU session Equipment.

The business data packet of partial service in the same PDU session can be allowed to pass through base by the embodiment of the present application It stands 1 forwarding, the business data packet of another part business can forward by base station 2, improve the sky that network is supplied to user equipment Port band width improves the business experience of user equipment.

Fig. 6 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application.As shown in fig. 6, This method specifically includes:

S610, first base station determine that the corresponding data packet of the first packet identification is sent by the second base station and second packet identifies Corresponding data packet is sent by first base station.Wherein, first base station can be master base station, and the second base station is from base station.

In PDU session establishment or renewal process, first base station can be determined based on dual link strategy, the PDU session institute There are the corresponding relationship of business corresponding data packet and base station, that is, the corresponding whole packet identifications of the PDU session and the first base It stands and the corresponding relationship of the second base station.

Wherein, first base station can determine the corresponding data packet of the first packet identification by the second base station according to dual link strategy It sends and second packet identifies corresponding data packet and sent by first base station.For dual link strategy, aforementioned combination may refer to Description in embodiment shown in fig. 5 in S510.

The dual link strategy of first base station contains whole packet identifications and first base station or the second base station of PDU session Corresponding relationship, determine that the corresponding data packet of which packet identification sends by first base station according to the corresponding relationship, which grouping Corresponding data packet is identified to be sent by the second base station.

S620, first base station send pair of the second base station data packet forwarding information and the first packet identification to user face nodes Should be related to and first base station data packet forwarding information and second packet mark corresponding relationship.

User equipment can trigger when carrying out new business and establish PDU session.In establishing PDU conversation procedure, the first base It stands and second packet mark and the corresponding relationship of first base station and the first packet identification and the second base is determined according to dual link strategy The corresponding relationship stood, and the corresponding relationship is sent to user face nodes.

For example, user face nodes data packet forwarding information is sent to user face nodes and first base station by session management node (master base station), first base station store the user face nodes data packet forwarding information, while first base station is by user face nodes data Packet forwarding information is sent to the second base station.First base station obtains the second base station data packet forwarding information from the second base station, wherein can To carry the second base station data packet in the response that first base station sends user face nodes data packet forwarding information to the second base station Forwarding information.First base station oneself distributes first base station data packet forwarding information.First base station forwards the second base station data packet Information and the first packet identification and first base station data packet forwarding information and the corresponding relationship of second packet mark are sent to use Family face node.In this way, mutually knowing the data packet forwarding letter of other side between the second base station or first base station and user face nodes Breath, establishes connection, further realizes and carried out data transmission by PDU session.

S630, when the corresponding packet identification of the data packet received is matched with second packet mark, user face nodes base In the corresponding relationship that first base station data packet forwarding information and second packet identify, being sent by first base station to user equipment should Data packet；When the corresponding packet identification of the data packet received is matched with the first packet identification, user face nodes are based on second The corresponding relationship of base station data packet forwarding information and the first packet identification sends the data to user equipment by the second base station Packet.

Wherein, user face nodes receive the matching executed after data packet and can be found in aforementioned embodiment as shown in connection with fig. 5 Associated description in step S530.

The embodiment of the present application is further introduced below with reference to specific example.

If Fig. 7 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application.Such as Fig. 7 institute Show, this method specifically includes:

S701, user equipment need to carry out new business, trigger PDU session updates process.Specifically, user equipment is to shifting Dynamic management node sends the request of PDU session updates, and PDU session updates request is forwarded by first base station, the PDU session updates It may include PDU session identification and the corresponding packet filter list of new business in request.Wherein, packet filter includes number According to source Internet protocol (Internet Protocol, IP) address, purpose IP address, source port number, destination slogan and association of packet The information such as view number, packet filter list include one or more packet filter, and PDU session identification is used to indicate needs more New PDU session.

S702, PDU session updates request message is sent to session management node by mobile management nodes, for example, moving tube The request for calling the update session context service of session management node, the calling can be sent to session management node by managing node The request of session management node updates session context service includes the request of PDU session updates.

S703 carries out PDU connectivity and accesses net (PDU between session management node and policy control functions Connectivity Access Network, PDU-CAN) session updates.Session management node updates new from policy control functions The corresponding charging policy of business and qos policy etc..

S704, session management node send N1N2 message transfer request to mobile management nodes, and N1N2 message transmission is asked Seek the PDU session updates command messages including being sent to user equipment.It include PDU session mark in the N1N2 message transfer request Know, qos parameter, which includes 5QI, distribution and reservation priority (Allocation and Retention Priority, ARP), guarantee stream bandwidth (Guaranteed Flow Bit Rate, GFBR) and max-flow bandwidth (Maximum Flow Bit Rate, MFBR) etc..The qos parameter is the qos parameter of new business.

S705, mobile management nodes send session request to first base station, include qos parameter in the session request, and PDU session identification.

S706, first base station determine that the corresponding data packet of new business is forwarded by the second base station, then the second base station are notified to build Vertical PDU session.For example, first base station sends the request of PDU session establishment to the second base station.Include in PDU session establishment request Qos parameter, the information such as PDU session identification and user face nodes data packet forwarding information.Wherein, user face nodes data packet forwards Information is locally stored for first base station.

S707, the second base station send the response of PDU session establishment to first base station, include the in PDU session establishment response Two base station data packet forwarding informations, wherein the second base station data packet forwarding information includes the IP address of the second base station, can also be wrapped Containing Tunnel End Point Identifier.

S708, updates radio resource between first base station and user equipment, such as establish between the second base station and user equipment The business data packet for being used for transmission new business radio bearer.

S709, first base station notify that the second base station RRC connection reconfiguration sets completion, before indicating the second base station and user equipment The radio bearer of business data packet of the new business of transmission have built up.

S710, first base station send conversational response to mobile management nodes, include PDU session identification in the conversational response, The corresponding relationship of the corresponding 5QI of new business and the second base station data packet forwarding information.Optionally, first base station stores the second base Data packet of standing forwarding information.

S711, mobile management nodes send the update session context for calling session management node to session management node Service request, the calling session management node update session context service request in include PDU session identification, new industry It is engaged in the corresponding relationship of corresponding 5QI and the second base station data packet forwarding information.On the more new session of the calling session management node It can also include the PDU session updates order confirmation message of user device responsive in service request hereafter.

S712, session management section send the request of PDU session updates to user face nodes, wrap in PDU session updates request Include the corresponding 5QI of new business and the second base station data packet forwarding information.

S713, user face nodes send PDU session updates response message to session management node.

S714, session management node and policy control functions carry out PDU-CAN session updates, indicate policy control functions meter Take whether strategy and qos policy etc. correctly execute.

After process terminates, user face nodes are receiving the corresponding data packet of new business, pass through the second base station data Packet forwarding information is sent to the second base station, is sent to user equipment by the second base station.For the data of other business of the PDU session Packet, user face nodes are sent still through first base station data packet forwarding information.User face nodes obtain after receiving data packet The package identification of data packet header, the package identification are the source IP address in data packet, purpose IP address, source port Number, the information such as destination slogan and protocol number.Packet filter list is locally stored in user face nodes and the corresponding of 5QI is closed System knows the corresponding 5QI of the data packet, then matches 5QI and the second base station or first base station by matching the corresponding relationship The data packet is passed through the second base station or first base station data if matched by the corresponding relationship of data packet forwarding information Packet forwarding information is sent to the second base station or first base station.If unmatched, default is turned by first base station data packet Photos and sending messages are sent to first base station, or abandon the data packet.

In another embodiment, the PDU session updates process that policy control functions can also initiate.

It should be noted that in base station and user face nodes data packet forwarding information, if base station and user face nodes it Between use GTP agreement, then also include Tunnel End Point Identifier.In fact, base station and user face nodes can also be using other associations It is identified specified in view and other agreements, the present embodiment is not limited.

Fig. 8 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application.As shown in figure 8, This method specifically includes:

S801, user equipment need to carry out new business, trigger PDU session updates process.Specifically, user equipment is to shifting Dynamic management node sends the request of PDU session updates, and PDU session updates request is forwarded by first base station, the PDU session updates It may include PDU session identification and the corresponding packet filter list of new business in request.Wherein, packet filter includes number According to the information such as the source IP address of packet, purpose IP address, source port number, destination slogan and protocol number, packet filter list packet Containing one or more packet filter, PDU session identification is used to indicate the PDU session for needing to update.

S802, PDU session updates request message is sent to session management node by mobile management nodes, for example, moving tube The request for calling the update session context service of session management node, the calling can be sent to session management node by managing node The request of the update session context service of session management node includes the request of PDU session updates.

S803 carries out PDU-CAN session updates between session management node and policy control functions.Session management node from Policy control functions update the corresponding charging policy of new business and qos policy etc..

S804, session management node send N1N2 message transfer request to mobile management nodes, and N1N2 message transmission is asked Seek the PDU session updates command messages including being sent to user equipment.It include PDU session mark in the N1N2 message transfer request Know, qos parameter, which includes 5QI, ARP, GFBR and MFBR etc..The qos parameter is the qos parameter of new business.

S805, mobile management nodes send session request to first base station, include qos parameter, grouping in the session request Filter list and PDU session identification.

S806, first base station determine that the corresponding data packet of new business is forwarded by the second base station, then the second base station are notified to build Vertical PDU session.For example, first base station sends the request of PDU session establishment to the second base station.Include in PDU session establishment request Qos parameter, the information such as PDU session identification and user face nodes data packet forwarding information.Wherein, user face nodes data packet forwards Information is locally stored for first base station.

S807, the second base station send the response of PDU session establishment to first base station, include the in PDU session establishment response Two base station data packet forwarding informations, wherein the second base station data packet forwarding information includes the IP address of the second base station, can also be wrapped Containing Tunnel End Point Identifier.

S808, updates radio resource between first base station and user equipment, such as establish between the second base station and user equipment The business data packet for being used for transmission new business radio bearer.

S809, first base station notify that the second base station RRC connection reconfiguration sets completion, before indicating the second base station and user equipment The radio bearer of business data packet of the new business of transmission have built up.

S810, first base station send conversational response to mobile management nodes, include PDU session identification in the conversational response, The corresponding relationship of the corresponding packet filter list of new business and the second base station data packet forwarding information.Optionally, the first base It stands and stores the second base station data packet forwarding information.

S811, mobile management nodes send the update session context for calling session management node to session management node Service request, the calling session management node update session context service request in include PDU session identification, new industry It is engaged in the corresponding relationship of corresponding packet filter list and the second base station data packet forwarding information.The calling session management node Updating can also be including the PDU session updates order confirmation message of user device responsive in the service request of session context.

S812, session management section send the request of PDU session updates to user face nodes, wrap in PDU session updates request Include the corresponding 5QI of new business and the second base station data packet forwarding information.Session management node sends session updates request message To user face nodes, one or more packet filter and the second base station data packet forwarding information are carried in the message；

S813, user face nodes send PDU session updates response message to session management node.

S814, session management node and policy control functions carry out PDU-CAN session updates, indicate policy control functions meter Take whether strategy and qos policy etc. correctly execute.

After process terminates, user face nodes are receiving the corresponding data packet of new business, pass through the second base station data Packet forwarding information is sent to the second base station, is sent to user equipment by the second base station.For the data of other business of the PDU session Packet, user face nodes are sent still through first base station data packet forwarding information.User face nodes obtain after receiving data packet The package identification of data packet header, with packet filter list and the second base station or first base station data packet forwarding information Corresponding relationship is matched, if matched, data packet is forwarded letter by the data packet of the second base station or first base station Breath is sent to the second base station or first base station.If unmatched, default passes through the data packet forwarding information of first base station It is sent to first base station, or abandons the data packet.

In another embodiment, S706 and S707 or S806 and S807 step is that the second base station does not set up PDU session Process, if the second base station has been set up the corresponding PDU session of PDU session identification, S706 and S707 in PDU more new technological process Or S806 and S807 could alternatively be:

A, first base station determine that the corresponding data packet of new business is forwarded by the second base station, then first base station notifies the second base It stands and updates PDU session.It is requested for example, first base station sends PDU session updates to the second base station, in PDU session updates request Carry the information such as qos parameter and PDU session identification.

B, the second base station send the response of PDU session updates to first base station.

S710 or S810 could alternatively be:

C, first base station send conversational response to mobile management nodes, include PDU session identification in the conversational response, new The corresponding 5QI of business and the second base station data packet forwarding information, wherein the second base station data packet forwarding information is first What base station was locally stored.

First base station can be forwarded according to the local data packet for whether storing corresponding second base station of the PDU session identification Information determines whether the second base station has built up the PDU session.

Fig. 9 is another dual link communication means Signalling exchange schematic diagram provided by the embodiments of the present application.As shown in figure 9, This method specifically includes:

S901, user equipment need to carry out new business, trigger PDU session establishment process.For example, user equipment is to movement Management node sends the request of PDU session establishment, and PDU session establishment request is forwarded by first base station, which asks It include the PDU session identification of user equipment distribution in asking, which is used to identify the PDU session currently established.

S902, mobile management nodes can establish session or more to session management node transmission calling session management node The request of text service, the request for establishing session context service of the calling session management node include the request of PDU session establishment.

S903, if not having the relevant subscription data of user equipment session management, user equipment on session management node Subscription data is obtained to uniform data management function.

S904, between session management node and policy control functions carry out PDU-CAN session establishment, session management node from Policy control functions obtain charging policy and qos policy etc..

S905, session management node send the request of PDU session establishment to user face nodes, include in session establishment request The user face nodes data packet forwarding information of the PDU session of PDU session identification and the distribution of session management node.

S906, user face nodes send PDU session establishment response message to session management node.

S907, session management node establish session context response to mobile management nodes reply, this establishes session or more It include PDU session identification and user face nodes data packet forwarding information etc. in text response；This is established in session context response also PDU session establishment comprising being sent to user equipment responds.

S908, mobile management nodes send session request to first base station, include in the session request PDU session identification and User face nodes data packet forwarding information etc..

S909, first base station request the second base station to establish PDU session.For example, first base station sends PDU meeting to the second base station Words establish request, include PDU session identification and user face nodes data packet forwarding information etc. in PDU session establishment request.

S910, the second base station send the response of PDU session establishment to first base station, include the in PDU session establishment response Second base station data packet forwarding information of two base stations distribution, can also include PDU session identification.

S911 updates radio resource, such as establishes between first base station and user equipment between first base station and user equipment The data packet for being used for transmission new business radio bearer；

S912, first base station are forwarded according to dual link strategic decision-making which data packet by first base station, which data packet by The forwarding of second base station.The dual link strategy can be 5QI list and its base station of corresponding forwarding data packet, or The base station of packet filter identification list and its corresponding forwarding data packet.

Dual link strategy can be locally configured in first base station, can also be from operation and maintenance center (Operation& Maintenance, O&M) or other nodes such as policy control functions obtain.

First base station sends conversational response to mobile management nodes, includes PDU session identification in the conversational response, and first The corresponding of 5QI list and the second base station data packet forwarding information, the 2nd 5QI list and first base station data packet forwarding information is closed System.Wherein, 5OI list may be packet filter identification list or packet filter list.

S913, mobile management nodes send the update session context clothes for calling session management node to session management node The request of business, the calling session management node update session context service request in include the first 5QI list and second The corresponding relationship of the data packet forwarding information of base station data packet forwarding information, the 2nd 5QI list and first base station can also include PDU session identification.The 5QI list may be packet filter identification list or packet filter list.

S914, session management node send session updates request to user face nodes, include the in session updates request The corresponding of one 5QI list and the second base station data packet forwarding information, the 2nd 5QI list and first base station data packet forwarding information is closed System, can also carry PDU session identification.It may be the data packet turn of packet filter identification list and base station in the message The corresponding relationship of the data packet forwarding information of the corresponding relationship of photos and sending messages or packet filter list and base station；

S915, user face nodes send session updates response to session management node.

S916, session management node send the update session context clothes for calling session management node to mobile management nodes The response of business.

Saved after process terminates, in user face nodes the corresponding 5QI list/packet filter list of the PDU session/ The corresponding relationship of packet filter identification list and base station data packet forwarding information receives downlink data packet in user face nodes Afterwards, user face nodes match above-mentioned corresponding relationship according to the corresponding 5QI of downlink data packet or packet filter, by lower line number Corresponding base station is sent to according to packet.

In base station or user face nodes data packet forwarding information, if assisted between base station and user face nodes using GTP View then also includes Tunnel End Point Identifier.In fact, base station and user face nodes can also using other agreements and other It is identified specified in agreement, the present embodiment is not limited.

Figure 10 is another architecture of base station schematic diagram provided by the embodiments of the present application.Such as Figure 10, which includes:

Determination unit 1001, for determining that the corresponding data packet of the first packet identification is sent by the second base station；

Transmission unit 1002, for sending the correspondence of the second base station data packet forwarding information and the first packet identification to UPF Relationship, the corresponding relationship so as to UPF based on the second base station data packet forwarding information and the first packet identification, by the second base station to UE sends the corresponding data packet of the first packet identification.

Optionally, further includes:

Receiving unit 1003, for receiving PDU session identification and the first packet identification of SMF transmission.

Optionally, transmission unit 1002 is also used to send PDU session identification, QoS parameter and UPF to the second base station Data packet forwarding information, so that PDU session is established in the second base station；

Receiving unit 1003 is also used to, and receives the second base station data packet forwarding information that the second base station is sent.

Optionally, further includes:

Storage unit, for saving the second base station data packet forwarding information.

Optionally, transmission unit 1002 is also used to, and sends PDU session identification and QoS parameter to the second base station, with Just the second base station updates PDU session；

Acquiring unit, for obtaining the second base station data packet forwarding information being locally stored.

Optionally it is determined that unit 1001 is also used to, determine that second packet identifies corresponding data packet and sent by first base station；

Transmission unit is also used to, and sends first base station data packet forwarding information to UPF and the corresponding of second packet mark is closed System, so as to the corresponding relationship that UPF is identified based on first base station data packet forwarding information and second packet, by first base station to UE It sends second packet and identifies corresponding data packet.

Optionally it is determined that unit 1001 is also used to, the corresponding data packet of the first packet identification is determined according to dual link strategy Sent by the second base station and determined that second packet identifies corresponding data packet and sent by first base station.

Wherein, the first packet identification or second packet mark include at least one of following: at least one packet filter, until Few packet filter mark or the instruction of at least one 5G service quality.

Figure 11 is another architecture of base station schematic diagram provided by the embodiments of the present application.Such as Figure 11, which includes:

Receiving unit 1101, for receiving PDU session identification, first service mass parameter and the UPF of the transmission of the second base station Data packet forwarding information；

Unit 1102 is established, for establishing the corresponding PDU session of PDU session identification according to first service mass parameter；

Transmission unit 1103, for sending first base station data packet forwarding information to the second base station.

Optionally, receiving unit 1101 is also used to, and receives PDU session identification and second service quality that the second base station is sent Parameter；

It further include updating unit, for updating the corresponding PDU session of PDU session identification according to second service mass parameter.

Figure 12 is another user face nodes structural schematic diagram provided by the embodiments of the present application.Such as Figure 12, user face section It puts and includes:

Receiving unit 1201, for receiving the second base station data packet forwarding information and the first grouping mark of first base station transmission The corresponding relationship of knowledge；

Transmission unit 1202, for being matched when the corresponding package identification of data packet received with the first packet identification When, based on the corresponding relationship of the second base station data packet forwarding information and the first packet identification, number is sent to UE by the second base station According to packet.

Optionally, receiving unit 1202 is also used to, receive first base station send first base station data packet forwarding information and The corresponding relationship of second packet mark；

Transmission unit 1202 is also used to, and when the package identification that data packet includes is matched with second packet mark, is based on The corresponding relationship of first base station data packet forwarding information and second packet mark sends data packet to UE by first base station.

Wherein, the first packet identification or second packet mark include at least one of following: at least one packet filter, At least one packet filter mark or the instruction of at least one 5G service quality.

The embodiment of the present application provides a kind of computer program product comprising instruction, when described instruction is transported on computers When row, method/step of the above-mentioned Fig. 5 into Fig. 9 is executed.

The embodiment of the present application provides a kind of computer readable storage medium, for storing instruction, when described instruction is being counted When executing on calculation machine, method/step of the above-mentioned Fig. 5 into Fig. 9 is executed.

The embodiment of the present application provides a kind of communication system.The system includes real described in above-mentioned combination Fig. 3 to Figure 10 Apply any one or more equipment in example.

It, can be wholly or partly by software, hardware, firmware or it is any in above-mentioned each embodiment of the present invention Combination is to realize.When implemented in software, it can entirely or partly realize in the form of a computer program product.The meter Calculation machine program product includes one or more computer instructions.Load and execute on computers the computer program instructions When, it entirely or partly generates according to process or function described in the embodiment of the present invention.The computer can be general-purpose computations Machine, special purpose computer, computer network or other programmable devices.The computer instruction can store can in computer It reads in storage medium, or is transmitted from a computer-readable medium to another computer-readable medium, for example, the calculating Machine instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center Word user line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another A web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer Any usable medium that can be accessed either includes the data such as one or more usable mediums integrated server, data center Store equipment.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or Person's semiconductor medium (for example, solid state hard disk) etc..

The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto, Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art, Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims Subject to.

Claims

1. a kind of dual link communication means characterized by comprising

First base station determines that the corresponding data packet of the first packet identification is sent by the second base station；

The first base station sends the second base station data packet forwarding information to UPF and the corresponding of first packet identification is closed System, the corresponding relationship so as to UPF based on the second base station data packet forwarding information and the first packet identification pass through described second Base station sends the corresponding data packet of first packet identification to the UE.

2. the method according to claim 1, wherein determining that the first packet identification is corresponding in the first base station Before data packet is sent by the second base station, further includes:

The first base station receives the PDU session identification and the first packet identification that SMF is sent.

3. according to the method described in claim 2, it is characterized in that, determining that the first packet identification is corresponding in the first base station After data packet is sent by the second base station, further includes:

The first base station sends PDU session identification, QoS parameter and UPF data packet forwarding letter to second base station Breath, so that PDU session is established in second base station；

The first base station receives the second base station data packet forwarding information that second base station is sent.

4. according to the method described in claim 3, it is characterized by further comprising:

The first base station saves the second base station data packet forwarding information.

5. according to the method described in claim 2, it is characterized in that, determining that the first packet identification is corresponding in the first base station After data packet is sent by the second base station, further includes:

The first base station sends the PDU session identification and QoS parameter to second base station, so as to described second Base station updates PDU session；

The first base station obtains the second base station data packet forwarding information being locally stored.

6. method described in -5 any one according to claim 1, which is characterized in that further include:

First base station determines that second packet identifies corresponding data packet and sent by first base station；

Pair that the first base station sends the first base station data packet forwarding information to the UPF and the second packet identifies It should be related to, so as to the corresponding relationship that the UPF is identified based on the first base station data packet forwarding information and second packet, pass through The first base station sends the second packet to the UE and identifies corresponding data packet.

7. according to the method described in claim 6, it is characterized in that, the first base station determines the corresponding number of the first packet identification Send and determine that second packet identifies corresponding data packet and sent by first base station by the second base station according to packet, comprising:

The first base station according to dual link strategy determine, the corresponding data packet of the first packet identification sent by the second base station and Second packet identifies corresponding data packet and is sent by first base station.

8. according to method described in claim 6-7 any one, which is characterized in that first packet identification or described second Packet identification includes at least one of following: at least one packet filter, at least one packet filter mark, or at least one A 5G service quality instruction.

9. a kind of dual link communication means characterized by comprising

First base station receives PDU session identification, first service mass parameter and the UPF data packet forwarding letter that the second base station is sent Breath；

The first base station establishes the corresponding PDU session of the PDU session identification according to the first service mass parameter；

The first base station sends first base station data packet forwarding information to second base station.

10. according to the method described in claim 9, it is characterized by further comprising:

First base station receives the PDU session identification and second service mass parameter that the second base station is sent；

The first base station updates the corresponding PDU session of the PDU session identification according to the second service mass parameter.

11. a kind of dual link communication means characterized by comprising

User face nodes receive pair of the second base station data packet forwarding information that first base station is sent and first packet identification It should be related to；

When the corresponding package identification of the data packet received is matched with first packet identification, the user face nodes base In the corresponding relationship of the second base station data packet forwarding information and the first packet identification, by second base station to the UE Send the data packet.

12. according to the method for claim 11, which is characterized in that further include:

The user face nodes receive pair of the first base station data packet forwarding information that first base station is sent and second packet mark It should be related to；

When the package identification that the data packet includes is matched with second packet mark, the user face nodes are based on institute The corresponding relationship for stating first base station data packet forwarding information and second packet mark, is sent by the first base station to the UE The data packet.

13. method according to claim 12, which is characterized in that first packet identification or second packet mark include It is at least one of following: at least one packet filter, at least one packet filter mark or at least one 5G service quality Instruction.

14. a kind of base station characterized by comprising

Determination unit, for determining that the corresponding data packet of the first packet identification is sent by the second base station；

Transmission unit, for sending the correspondence of the second base station data packet forwarding information and first packet identification to UPF Relationship, the corresponding relationship so as to UPF based on the second base station data packet forwarding information and the first packet identification pass through described Two base stations send the corresponding data packet of first packet identification to the UE.

15. base station according to claim 14, which is characterized in that further include:

Receiving unit, for receiving PDU session identification and the first packet identification of SMF transmission.

16. base station according to claim 15, which is characterized in that the transmission unit is also used to send out to second base station PDU session identification, QoS parameter and UPF data packet forwarding information are sent, so that PDU session is established in second base station；

The receiving unit is also used to, and receives the second base station data packet forwarding information that second base station is sent.

17. base station according to claim 16, which is characterized in that further include:

18. base station described in 5 any one according to claim 1, which is characterized in that the transmission unit is also used to, Xiang Suoshu Second base station sends the PDU session identification and QoS parameter, so that second base station updates PDU session；

19. base station described in 4-18 any one according to claim 1, which is characterized in that the determination unit is also used to, and is determined Second packet identifies corresponding data packet and is sent by first base station；

The transmission unit is also used to, and Xiang Suoshu UPF sends the first base station data packet forwarding information and the second packet The corresponding relationship of mark, the correspondence identified so as to the UPF based on the first base station data packet forwarding information and second packet Relationship sends the second packet to the UE by the first base station and identifies corresponding data packet.

20. base station according to claim 19, which is characterized in that the determination unit is also used to, according to dual link strategy Determine the corresponding data packet of the first packet identification sent by the second base station and determined second packet identify corresponding data packet by First base station is sent.

21. base station described in 9 or 20 according to claim 1, which is characterized in that first packet identification or the second packet Mark includes at least one of following: at least one packet filter, at least one packet filter mark or at least one 5G Service quality instruction.

22. a kind of base station characterized by comprising

Receiving unit, PDU session identification, first service mass parameter and UPF data packet for receiving the transmission of the second base station turn Photos and sending messages；

Unit is established, for establishing the corresponding PDU session of the PDU session identification according to the first service mass parameter；

Transmission unit, for sending first base station data packet forwarding information to second base station.

23. base station according to claim 22, which is characterized in that the receiving unit is also used to, and receives the second base station hair The PDU session identification and second service mass parameter sent；

Updating unit, for updating the corresponding PDU session of the PDU session identification according to the second service mass parameter.

24. a kind of user face nodes characterized by comprising

Receiving unit, for receive first base station transmission the second base station data packet forwarding information and first packet identification Corresponding relationship；

Transmission unit, for when the corresponding package identification of the data packet received is matched with first packet identification, base In the corresponding relationship of the second base station data packet forwarding information and the first packet identification, by second base station to the UE Send the data packet.

25. user face nodes according to claim 24, which is characterized in that the receiving unit is also used to, and receives first The corresponding relationship for first base station data packet forwarding information and the second packet mark that base station is sent；

The transmission unit is also used to, when the package identification that the data packet includes is matched with second packet mark, Based on the corresponding relationship that the first base station data packet forwarding information and second packet identify, by the first base station to described UE sends the data packet.

26. the user face nodes according to claim 25, which is characterized in that first packet identification or second packet mark It includes at least one of following for knowing: at least one packet filter, at least one packet filter mark or at least one 5G clothes Quality of being engaged in instruction.

27. a kind of base station, which is characterized in that including transceiver, processor and memory, transceiver is used for and mobile management section Point, user face nodes or user equipment are communicated；The memory is for storing program；The processor is for executing institute The described program of memory storage is stated, any method of 1-8 is required with perform claim.

28. a kind of base station, which is characterized in that including transceiver, processor and memory, transceiver is used for and mobile management section Point, user face nodes or user equipment are communicated；The memory is for storing program；The processor is for executing institute The described program of memory storage is stated, any method of 9-10 is required with perform claim.

29. a kind of user face nodes, which is characterized in that including transceiver, processor and memory, transceiver is used for and session pipe Reason node or user equipment are communicated；The memory is for storing program；The processor is for executing the storage The described program of device storage requires any method of 11-13 with perform claim.

30. a kind of computer readable storage medium, including computer-readable instruction, when computer is read and executes the computer When readable instruction, so that computer executes the method as described in claim 1-13 any one.

31. a kind of computer program product, including computer-readable instruction, when computer is read and is executed described computer-readable Instruction, so that computer executes the method as described in claim 1-13 any one.