CN111182651B - Information generation and data transmission method, device and storage medium - Google Patents
Information generation and data transmission method, device and storage medium Download PDFInfo
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- CN111182651B CN111182651B CN201811329892.4A CN201811329892A CN111182651B CN 111182651 B CN111182651 B CN 111182651B CN 201811329892 A CN201811329892 A CN 201811329892A CN 111182651 B CN111182651 B CN 111182651B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0033—Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
Abstract
The invention discloses an information generation and data transmission method, an information generation and data transmission device and a storage medium, which are used for reducing the signaling resource overhead of an interface between two functional entities of a base station in a cell switching process. The information generation method comprises the following steps: aiming at an interface between a first functional entity and a second functional entity of a base station, a receiving end generates a tunnel terminal identifier TEID, and the TEID is unique and numbered uniformly in the first functional entity; and the receiving end sends the generated TEID to the sending end.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to an information generating method, an information generating apparatus, a data transmitting method, an information generating apparatus, and a data transmitting apparatus.
Background
In the logical architecture of the 5G access network, the access network is divided into logical nodes CU (Central Unit) and DU (Distributed Unit), and the CU and the DU form a gNB base station, as shown in fig. 1. The CU is a centralized node, is connected with a core Network (NGC) through an NG interface, and can control and coordinate a plurality of cells in an access network; the DU is a distributed unit, and the CU and the DU are connected through an F1 interface.
In the F1 interface protocol, it is specified that a context of a UE (User Equipment) is established in a primary cell (PCell) in which the UE is located, including a Tunnel used by the UE in the F1 interface. One DRB (Data Resource Bear, Data bearer) corresponds to one GTP Tunnel Endpoint (GPRS tunneling protocol Endpoint). The PSCell (primary and secondary cell) establishes a primary value of a request signaling for the UE context, the SCell (secondary cell) and the DRB are parameters indicated by the PSCell, that is, the DRB and the PSCell are in a binding relationship, and since the DRB and the GTP Tunnel Endpoint are in one-to-one correspondence, the GTP Tunnel Endpoint and the PSCell are also in a binding relationship. Under the defined structure, when the PSCell changes, for example, the PSCell changes due to cell handover caused by movement of the UE on the air interface, the cell handover will cause re-establishment of related parameters in the UE context establishment request on the F1 interface, thereby increasing signaling resource overhead in the cell handover process.
Disclosure of Invention
The embodiment of the invention provides an information generation and data transmission method, an information generation and data transmission device and a storage medium, which are used for reducing the signaling resource overhead of an interface between two functional entities of a base station in a cell switching process.
The information generation method provided by the embodiment of the invention comprises the following steps:
aiming at an interface between a first functional entity and a second functional entity of a base station, a receiving end generates a tunnel terminal identifier TEID, and the TEID is unique and numbered uniformly in the first functional entity;
and the receiving end sends the generated TEID to the sending end.
Optionally, the receiving end is the second functional entity, and the transmitting end is the first functional entity; and
the method further comprises the following steps:
the second functional entity receives data sent by the first functional entity, wherein the data carries a first functional entity identifier and a TEID;
and if the second functional entity judges that the corresponding first functional entity is the first functional entity managed by the second functional entity according to the first functional entity identification, performing data processing according to the TEID.
Optionally, the receiving end is the first functional entity, and the transmitting end is the second functional entity; and
the method further comprises the following steps:
the first functional entity receives data sent by the second functional entity, wherein the data carries a first functional entity identifier and a TEID;
and if the first functional entity determines that the data is sent to the first functional entity according to the first functional entity identification, processing the data according to the TEID.
Optionally, the first functional entity is a distributed unit DU, and the second functional entity is a central unit CU.
A first data transmission method provided in an embodiment of the present invention includes:
a receiving end receives a UE context establishment request message sent by a sending end, wherein the UE context request message carries a first functional entity Identifier (ID) and a tunnel terminal identifier (TEID), and the TEID is generated by the receiving end according to the information generation method.
Optionally, the first data transmission method provided in the embodiment of the present invention further includes:
establishing a data bearer for the UE aiming at the UE context establishment request message; and are
Establishing a corresponding relation between the data bearer and the first functional entity identifier;
and returning a UE up-down establishment response message to the sending end, wherein the UE up-down establishment response message carries a data bearing identifier.
The second data transmission method provided by the embodiment of the invention comprises the following steps:
the sending end sends a UE context establishment request message to a receiving end, wherein the UE context request message carries a first functional entity Identifier (ID) and a tunnel terminal identifier (TEID), and the TEID is generated by the receiving end according to the information generation method.
Optionally, the second data transmission method provided in the embodiment of the present invention further includes:
the sending end receives UE up-down establishment response messages returned by the receiving end, the UE up-down establishment response messages are the UE up-down establishment request messages for the receiving end according to the UE context, and data bearing is established for the UE; and the UE establishes a corresponding relation between the data bearer and the first functional entity identifier and then sends the corresponding relation, wherein the UE up-down establishment response message carries the data bearer identifier.
An embodiment of the present invention provides an information generating apparatus, including:
a generating unit, configured to generate a tunnel terminal identifier TEID for an interface between a first functional entity and a second functional entity of a base station, where the TEID is unique and is numbered in a unified manner within the first functional entity;
and the sending unit is used for sending the generated TEID to the sending end.
Optionally, the information sending apparatus is disposed in the second functional entity, a receiving end is the second functional entity, and the sending end is the first functional entity; and
the device, still include:
a first receiving unit, configured to receive data sent by the first functional entity, where the data carries a first functional entity identifier and a TEID;
and the first data processing unit is used for processing data according to the TEID if the corresponding first functional entity is judged to be the first functional entity managed by the first data processing unit according to the first functional entity identification.
Optionally, the information sending apparatus is disposed in the first functional entity, the receiving end is the first functional entity, and the sending end is the second functional entity; and
the device, still include:
a second receiving unit, configured to receive data sent by the second functional entity, where the data carries a first functional entity identifier and a TEID;
and the second data processing unit is used for processing data according to the TEID if the data sent to the second data processing unit is determined according to the first functional entity identification.
Optionally, the first functional entity is a distributed unit DU, and the second functional entity is a central unit CU.
A first data transmission apparatus provided in an embodiment of the present invention includes:
a receiving unit, configured to receive a UE context setup request message sent by a sending end, where the UE context request message carries a first functional entity identifier and a tunnel terminal identifier TEID, and the TEID is generated by the receiving end according to the information generation method.
Optionally, the first data transmission apparatus provided in the embodiment of the present invention further includes:
a bearer establishing unit, configured to establish a data bearer for the UE according to the UE context establishment request message;
a mapping unit, configured to establish a correspondence between the data bearer and the first functional entity identifier;
and the response unit is used for returning a UE up-down establishment response message to the sending end, wherein the UE up-down establishment response message carries the data bearing identification.
The second data transmission apparatus provided in the embodiment of the present invention includes:
a sending unit, configured to send a UE context setup request message to a receiving end, where the UE context request message carries a first functional entity identifier and a tunnel terminal identifier TEID, and the TEID is generated by the receiving end according to the information generation method.
Optionally, the second data transmission apparatus provided in the embodiment of the present invention further includes:
a receiving unit, configured to receive a UE up-down establishment response message returned by the receiving end, where the UE up-down establishment response message is a request message established by the receiving end according to the UE context and establishes data bearer for the UE; and the UE establishes a corresponding relation between the data bearer and the first functional entity identifier and then sends the corresponding relation, wherein the UE up-down establishment response message carries the data bearer identifier.
The invention provides a communication device, comprising: a processor, a memory, and a transceiver; the memory stores computer programs, and the processor is used for reading the programs in the memory and executing the steps of the information generation or any data transmission method.
An embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable the computer to execute the steps described in the above information generation method or any data transmission method.
In the information generation method, the data transmission device and the storage medium provided by the embodiment of the invention, the TEID is generated aiming at the interface between the first functional entity and the second functional entity of the base station, and the TEID is uniquely and uniformly numbered in the first functional entity, so that when UE is switched between cells in the first functional entity, the TEID does not change, so that interface switching is not required, and the signaling resource overhead is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram illustrating an implementation flow of an information generating method according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating an implementation of a first data transmission method according to an embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating an implementation of a second data transmission method according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an information generating apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a first data transmission apparatus according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a second data transmission apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
Detailed Description
In order to reduce signaling resource overhead of interfaces of a first functional entity and a second functional entity of a base station in a cell handover process, embodiments of the present invention provide an information generation method, an information generation device, and a storage medium.
The User Equipment (UE) in the present invention may be a terminal device such as a Personal Computer (PC), a tablet PC, a Personal Digital Assistant (PDA), a Personal Communication Service (PCs) phone, a notebook, a mobile phone, etc., or a Computer having a mobile terminal, for example, a portable, pocket, hand-held, Computer-embedded or vehicle-mounted mobile device, which can provide voice and/or data connectivity to a user and exchange voice and/or data with a wireless access network.
Furthermore, the terms "first," "second," and the like in the description and in the claims, and in the drawings, in the embodiments of the invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein.
Reference herein to "a plurality or a number" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The preferred embodiments of the present invention will be described below with reference to the accompanying drawings of the specification, it being understood that the preferred embodiments described herein are merely for illustrating and explaining the present invention, and are not intended to limit the present invention, and that the embodiments and features of the embodiments in the present invention may be combined with each other without conflict.
In the embodiment of the invention, aiming at an application scene that UE moves between first functional entities connected with a same second functional entity, aiming at reducing signaling resource overhead in the moving process of the UE, aiming at an interface between the first functional entity and the second functional entity of a base station, a method for decoupling the interface and a cell where a user is located is provided, so as to realize zero switching of the interface in the moving process of the UE. In a specific implementation, the membership relationship between a cell and a data bearer in the user context signaling on the relevant interface may be contacted, and specifically, a parameter in a GTP Tunnel Endpoint may be defined, for example, a TEID (Tunnel Endpoint Identity). The TEID is generated by the interface end and used by the sending end. For example, in 5G (5 th generation mobile communication network), the first functional entity may be a DU (distributed unit), the second functional entity may be a CU (central unit), and the interface between the first functional entity and the second functional entity may be an F1 interface between the DU and the CU. For the TEID, the TEID used by the DU when sending data to the CU is generated by the CU, and the TEID used by the CU when sending data to the DU is generated by the DU.
In the embodiment of the invention, when the UE moves in the cell connected with the first functional entity under the connection of the same second functional entity and the cell is switched, aiming at reducing the switching of the interface between the first functional entity and the second functional entity and reducing the signaling resource overhead, the TEID is uniformly managed aiming at the first functional entity, the TEID is unique and uniformly numbered in the same first functional entity, and the binding relationship between the TEID and the cell where the UE is located is released.
As shown in fig. 1, which is a schematic diagram of an implementation flow of an information generating method provided in an embodiment of the present invention, the method may include the following steps:
s11, aiming at the interface between the first functional entity and the second functional entity of the base station, the receiving end generates a tunnel terminal identifier TEID.
Wherein, within the first functional entity, the TEIDs are unique and uniformly numbered.
S12, the receiving end sends the generated TEID to the sending end.
In specific implementation, according to the difference between the sending end and the receiving end, the information generation method provided in the embodiment of the present invention may be implemented in any of the following ways:
in a first embodiment, the TEID used by the first functional entity to send data to the second functional entity is addressed.
In such an embodiment, the TEID is generated by the second functional entity. For the generated TEID, the second functional entity may be assigned with the DU for the received data as a basic unit, and the TEID is uniquely and uniformly numbered within the first functional entity for the received data. For the TEIDs used by different first functional entities, the second functional entity is allocated independently during allocation, and the TEIDs of different first functional entities may be the same or different and have no relationship with each other. And the TEID assigned by the second functional entity has no membership with the cell where the user using the TEID is located.
Based on this, the first functional entity sends data to the second functional entity based on the TEID allocated by the second functional entity, and the second functional entity may perform data processing according to the following procedures: a second functional entity receives data sent by the first functional entity, wherein the data carries a first functional entity identifier and a TEID; and if the second functional entity judges that the corresponding first functional entity is the first functional entity managed by the second functional entity according to the first functional entity identification, performing data processing according to the TEID.
The above flow is described by taking the first functional entity as DU and the second functional entity as CU. The TEID allocated by the CU to each DU is a value between 0 and 65535, and when an available GTP tunnel is identified, the available GTP tunnel is uniquely identified by using a DU _ ID (DU identification) + TEID mode. When the DU sends data, the GTP tunnel is routed according to the mode of DU _ ID + TEID, when the data reaches the CU end, the CU firstly judges whether the data is an effective DU managed by the CU according to the DU _ ID, and if the data is the effective DU managed by the CU, the subsequent processing is carried out according to the TEID; otherwise, the data is discarded.
In a second embodiment, the TEID used by the first functional entity is sent to the second functional entity.
In such an embodiment, the TEID is generated by the first functional entity, the TEID being uniformly numbered within the first functional entity and unique within the first functional entity. The TEID has no membership to the air interface cell where the UE using the TEID is located.
The second functional entity sends data to the first functional entity based on the TEID generated by the first functional entity, and the first functional entity performs data processing according to the following procedures: the first functional entity receives data sent by the second functional entity, wherein the data carries a first functional entity identifier and a TEID; and if the first functional entity determines that the data is sent to the first functional entity according to the first functional entity identification, processing the data according to the TEID.
The above flow is described by taking the first functional entity as DU and the second functional entity as CU. When the CU sends data, the GTP tunnel is routed according to the mode of DU _ ID + TEID, when the data reaches a DU end, the DU judges whether the data is the data of the CU or not according to the DU _ ID, if so, the subsequent processing is carried out according to the TEID; otherwise, the data is discarded.
In order to release the membership between the TEID and the cell where the UE using the TEID is located, the embodiment of the invention also provides a corresponding data transmission method.
As shown in fig. 2, which is a schematic implementation flow diagram of a first data transmission method provided in an embodiment of the present invention, the method may include the following steps:
s21, the receiving end receives the UE context establishment request message sent by the sending end.
The UE context request message carries the first functional entity identifier and the TEID.
In specific implementation, one DRB (data bearer) corresponds to one GTP Tunnel Endpoint uniquely, that is, one DRB ID (data bearer identifier) corresponds to one GTP Tunnel Endpoint List, and one GTP Tunnel Endpoint List only includes one TEID, so the DEB ID and the TEID are in one-to-one correspondence. Based on this, in the embodiment of the present invention, descriptions for GTP Tunnel Endpoint List may be added to the UE context setup request message and the UE context setup request cancellation response, and the configured GTP Tunnel is only bound to the first functional entity to which the UE is connected, and is not related to the cell where the UE is located.
S22, establishing a data bearer for the UE according to the received UE context establishment request message.
S23, establishing the corresponding relation between the data bearing and the first functional entity identification.
And S24, returning a UE up-down establishment response message to the sending end, wherein the UE up-down establishment response message carries the data bearing identification.
As shown in fig. 3, which is a schematic implementation flow diagram of a second data transmission method provided in the embodiment of the present invention, the method may include the following steps:
s31, the sending end sends a UE context establishment request message to the receiving end, wherein the UE context request message carries the first functional entity identification and the tunnel terminal identifier TEID.
And S32, the sending end receives the UE up-down establishment response message returned by the receiving end.
The UE up-down establishment response message is a request message established by the receiving end according to the UE context, and data bearing is established for the UE; and the UE establishes a corresponding relation between the data bearer and the first functional entity identifier and then sends the corresponding relation, wherein the UE up-down establishment response message carries the data bearer identifier.
In the embodiment of the invention, the first functional entity identification and the TEID are bound to indicate that the GTP tunnel is managed and distributed by taking DU as a unit, namely, the second functional entity manages and distributes the GTP tunnel according to a two-stage identification mode of the first functional entity identification and the TEID when expressing one GTP tunnel. In addition, in the embodiment of the invention, the limitation that the main cell (PSCell or PCell) is used as the main value of the UE context establishment/request message is cancelled, namely, in the process of configuring the GTP tunnels, each GTP tunnel is directly mapped with the DRB without management and control through the cell. The DRB is directly bound with the first functional entity and is irrelevant to an air interface cell where the UE is located. Therefore, in the interface signaling of UE context modification of cell switching awareness, the binding relationship between the TEID and the DRB does not need to be modified.
Based on the same inventive concept, the embodiment of the present invention further provides an information generating apparatus and a data transmission apparatus, and because the principle of the apparatus for solving the problem is similar to that of the information generating apparatus and the data transmission method, the implementation of the apparatus may refer to the implementation of the method, and repeated details are not repeated.
As shown in fig. 4, which is a schematic structural diagram of an information generating apparatus provided in an embodiment of the present invention, the information generating apparatus includes:
a generating unit 41, configured to generate a tunnel terminal identifier TEID for an interface between a first functional entity and a second functional entity of a base station, where the TEID is unique and is numbered in a unified manner in the first functional entity;
and a sending unit 42, configured to send the generated TEID to the sending end.
Optionally, the information sending apparatus is disposed in the second functional entity, a receiving end is the second functional entity, and the sending end is the first functional entity; and
the device, still include:
a first receiving unit, configured to receive data sent by the first functional entity, where the data carries a first functional entity identifier and a TEID;
and the first data processing unit is used for processing data according to the TEID if the corresponding first functional entity is judged to be the first functional entity managed by the first data processing unit according to the first functional entity identification.
Optionally, the information sending apparatus is disposed in the first functional entity, the receiving end is the first functional entity, and the sending end is the second functional entity; and
the device, still include:
a second receiving unit, configured to receive data sent by the second functional entity, where the data carries a first functional entity identifier and a TEID;
and the second data processing unit is used for processing data according to the TEID if the data sent to the second data processing unit is determined according to the first functional entity identification.
Optionally, the first functional entity is a distributed unit DU, and the second functional entity is a central unit CU.
As shown in fig. 5, which is a schematic structural diagram of a first data transmission apparatus provided in an embodiment of the present invention, including:
a receiving unit 51, configured to receive a UE context setup request message sent by a sending end, where the UE context request message carries a first functional entity identifier and a tunnel terminal identifier TEID, and the TEID is generated by the receiving end according to the information generation method.
Optionally, the first data transmission apparatus provided in the embodiment of the present invention further includes:
a bearer establishing unit 52, configured to establish a data bearer for the UE according to the UE context establishment request message;
a mapping unit 53, configured to establish a corresponding relationship between the data bearer and the first functional entity identifier;
a response unit 54, configured to return a UE up-down establishment response message to the sending end, where the UE up-down establishment response message carries a data bearer identifier.
As shown in fig. 6, which is a schematic structural diagram of a second data transmission apparatus provided in an embodiment of the present invention, including:
a sending unit 61, configured to send a UE context setup request message to a receiving end, where the UE context request message carries a first functional entity identifier and a tunnel terminal identifier TEID, and the TEID is generated by the receiving end according to the information generation method.
Optionally, the second data transmission apparatus provided in the embodiment of the present invention further includes:
a receiving unit 62, configured to receive a UE up-down establishment response message returned by the receiving end, where the UE up-down establishment response message is a request message established by the receiving end according to the UE context and establishes data bearer for the UE; and the UE establishes a corresponding relation between the data bearer and the first functional entity identifier and then sends the corresponding relation, wherein the UE up-down establishment response message carries the data bearer identifier.
For convenience of description, the above parts are separately described as modules (or units) according to functional division. Of course, the functionality of the various modules (or units) may be implemented in the same or in multiple pieces of software or hardware in practicing the invention.
Based on the same technical concept, the embodiment of the present application further provides a communication device, which can implement the method in the foregoing embodiment.
Referring to fig. 7, a schematic structural diagram of a communication device according to an embodiment of the present invention is shown in fig. 7, where the communication device may include: a processor 701, a memory 702, a transceiver 703, and a bus interface.
The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations. The transceiver 703 is used for receiving and transmitting data under the control of the processor 701.
The bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 702, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.
The process disclosed in the embodiments of the present invention may be applied to the processor 701, or implemented by the processor 701. In implementation, the steps of the signal processing flow may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The processor 701 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the BWP switching method based on the downlink control signaling disclosed in the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702 and completes the steps of the signal processing flow in combination with the hardware thereof.
Specifically, the processor 701 is configured to read a program in the memory, and execute any step of the above-described information generating and data transmitting method.
Based on the same technical concept, the embodiment of the application also provides a computer storage medium. The computer-readable storage medium stores computer-executable instructions for causing the computer to perform any of the steps of the information generation and data transmission methods described above.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (18)
1. An information generating method, comprising:
aiming at an interface between a first functional entity and a second functional entity of a base station, a receiving end generates a tunnel terminal identifier TEID, and the TEID is unique and numbered uniformly in the first functional entity;
and the receiving end sends the generated TEID to the sending end.
2. The method of claim 1, wherein the receiving end is the second functional entity, and the transmitting end is the first functional entity; and
the method further comprises the following steps:
the second functional entity receives data sent by the first functional entity, wherein the data carries a first functional entity identifier and a TEID;
and if the second functional entity judges that the corresponding first functional entity is the first functional entity managed by the second functional entity according to the first functional entity identification, performing data processing according to the TEID.
3. The method of claim 1, wherein the receiving end is the first functional entity and the transmitting end is a second functional entity; and
the method further comprises the following steps:
the first functional entity receives data sent by the second functional entity, wherein the data carries a first functional entity identifier and a TEID;
and if the first functional entity determines that the data is sent to the first functional entity according to the first functional entity identification, processing the data according to the TEID.
4. A method according to claim 1, 2 or 3, characterized in that the first functional entity is a distributed unit, DU, and the second functional entity is a central unit, CU.
5. A method of data transmission, comprising:
a receiving end receives a UE context establishment request message sent by a sending end, wherein the UE context request message carries a first functional entity Identifier (ID) and a tunnel terminal identifier (TEID), and the TEID is generated by the receiving end according to the method of any one of claims 1 to 4.
6. The method of claim 5, further comprising:
establishing a data bearer for the UE aiming at the UE context establishment request message; and are
Establishing a corresponding relation between the data bearer and the first functional entity identifier;
and returning a UE context establishment response message to the sending end, wherein the UE context establishment response message carries a data bearing identifier.
7. A method of data transmission, comprising:
a sending end sends a UE context establishment request message to a receiving end, wherein the UE context request message carries a first functional entity Identifier (ID) and a tunnel terminal identifier (TEID), and the TEID is generated by the receiving end according to the method of any claim 1 to 4.
8. The method of claim 7, further comprising:
the sending end receives a UE context establishment response message returned by the receiving end, wherein the UE context establishment response message is the UE context establishment request message and establishes data bearer for the UE; and the UE context establishment response message is sent after establishing the corresponding relationship between the data bearer and the first functional entity identifier, and the UE context establishment response message carries the data bearer identifier.
9. An information generating apparatus, characterized by comprising:
a generating unit, configured to generate a tunnel terminal identifier TEID for an interface between a first functional entity and a second functional entity of a base station, where the TEID is unique and is numbered in a unified manner within the first functional entity;
and the sending unit is used for sending the generated TEID to the sending end.
10. The apparatus of claim 9, wherein the information sending apparatus is disposed in the second functional entity, a receiving end is the second functional entity, and the sending end is the first functional entity; and
the device, still include:
a first receiving unit, configured to receive data sent by the first functional entity, where the data carries a first functional entity identifier and a TEID;
and the first data processing unit is used for processing data according to the TEID if the corresponding first functional entity is judged to be the first functional entity managed by the first data processing unit according to the first functional entity identification.
11. The apparatus of claim 9, wherein a receiving end is a first functional entity, the information sending apparatus is disposed in the first functional entity, the receiving end is the first functional entity, and the sending end is a second functional entity; and
the device, still include:
a second receiving unit, configured to receive data sent by the second functional entity, where the data carries a first functional entity identifier and a TEID;
and the second data processing unit is used for processing data according to the TEID if the data sent to the second data processing unit is determined according to the first functional entity identification.
12. An arrangement according to claim 9, 10 or 11, characterized in that said first functional entity is a distributed unit, DU, and the second functional entity is a central unit, CU.
13. A data transmission apparatus, comprising:
a receiving unit, configured to receive a UE context setup request message sent by a sending end, where the UE context setup request message carries a first functional entity identifier and a tunnel terminal identifier TEID, and the TEID is generated by the receiving end according to the method of any one of claims 1 to 4.
14. The apparatus of claim 13, further comprising:
a bearer establishing unit, configured to establish a data bearer for the UE according to the UE context establishment request message;
a mapping unit, configured to establish a correspondence between the data bearer and the first functional entity identifier;
and a response unit, configured to return a UE context setup response message to the sending end, where the UE context setup response message carries a data bearer identifier.
15. A data transmission apparatus, comprising:
a sending unit, configured to send a UE context setup request message to a receiving end, where the UE context setup request message carries a first functional entity identifier and a tunnel terminal identifier TEID, and the TEID is generated by the receiving end according to the method of any one of claims 1 to 4.
16. The apparatus of claim 15, further comprising:
a receiving unit, configured to receive a UE context setup response message returned by the receiving end, where the UE context setup response message is a request message for the receiving end to setup a data bearer for the UE according to the UE context setup request message; and the UE context establishment response message carries the data bearer identification, and is sent after the corresponding relationship between the data bearer and the first functional entity identification is established.
17. A communications apparatus, comprising: a processor, a memory, and a transceiver; wherein the memory stores a computer program, and the processor is configured to read the program stored in the memory and execute the method according to any one of claims 1 to 8.
18. A computer storage medium having computer-executable instructions stored thereon for causing a computer to perform the method of any one of claims 1-8.
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