CN112422375B - Communication method, device, system, fixed desktop distribution unit and storage medium - Google Patents

Communication method, device, system, fixed desktop distribution unit and storage medium Download PDF

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CN112422375B
CN112422375B CN201910780348.XA CN201910780348A CN112422375B CN 112422375 B CN112422375 B CN 112422375B CN 201910780348 A CN201910780348 A CN 201910780348A CN 112422375 B CN112422375 B CN 112422375B
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terminal
core network
distribution unit
communication
access
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CN112422375A (en
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张兰佳
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2869—Operational details of access network equipments
    • H04L12/2878—Access multiplexer, e.g. DSLAM
    • 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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Abstract

The embodiment of the invention provides a communication method, a device, a system, a fixed desktop distribution unit and a storage medium, wherein the fixed desktop distribution unit establishes high-level connection above a PDCP layer with a CU, then simulates a wireless terminal and a core network to establish a data bearing channel above the PDCP layer, and realizes communication between the core network and a bandwidth terminal based on Ethernet access based on the data bearing channel. By the method, the bandwidth terminal can be accessed to the fixed desktop distribution unit through the Ethernet and communicate with the data bearing channel established by the core network through the fixed desktop distribution unit, so that the access mode of the wired access network is compatible in the wireless access network, the combination of the wireless access network and the wired access network is realized, and the two access networks share the same core network, so that the core network can uniformly manage communication resources in the wireless access network and the wired access network, resource multiplexing is facilitated in the two networks, resource utilization rate is improved, and the overall cost of the communication network is reduced.

Description

Communication method, device, system, fixed desktop distribution unit and storage medium
Technical Field
The present invention relates to the field of communications, and in particular, to a communication method, apparatus, system, fixed desktop distribution unit, and storage medium.
Background
Currently, an operator generally maintains two data service networks simultaneously, one is a wireless access network, and a user moving at a high speed is accessed to a base station through an air interface mode; another network is a wired broadband access network, which typically provides services to users within a fixed geographic area. Because the communication protocols adopted by the two data service networks are different, physical resources and operation and maintenance resources are required to be occupied respectively, and the resources cannot be reused, so that the problems of low resource utilization rate and high communication network cost of the two data service networks are caused.
Disclosure of Invention
The communication method, device and system, the fixed desktop distribution unit and the storage medium provided by the embodiment of the invention mainly solve the technical problems that: in the related art, a wireless network is independent of a priority network, resources cannot be reused, and the problems of low resource utilization rate and high communication network cost are caused.
In order to solve the above technical problems, an embodiment of the present invention provides a communication method, including:
establishing high-layer connection with the CU, wherein the high-layer is a layer above the PDCP layer;
establishing a data bearing channel above the PDCP layer by the analog wireless terminal and the core network;
communication between the core network and the Ethernet access based terminal is realized based on the data bearing channel.
The embodiment of the invention also provides a communication device, which comprises:
the distribution simulation module is used for establishing high-level connection with the CU, wherein the high-level is a layer above the PDCP layer;
a terminal simulation module for simulating the wireless terminal and the core network to establish a data bearing channel on the PDCP layer;
and the data communication module is used for realizing communication between the core network and the terminal based on Ethernet access based on the data bearing channel.
The embodiment of the invention also provides a fixed desk type distribution unit, which comprises a processor, a memory and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to perform the steps of the communication method described above.
The embodiment of the invention also provides a communication system which comprises a CU, at least one distribution unit DU and the fixed desktop distribution unit; the DU and the fixed desk type distribution unit are connected with a CU by a higher layer above the PDCP layer; the DU accepts wireless terminal to access through air interface mode, and the DU accepts terminal to access through Ethernet.
The embodiment of the invention also provides a storage medium storing one or more programs executable by one or more processors to implement the steps of the communication method.
The beneficial effects of the invention are as follows:
the communication method, the device, the system, the fixed desktop distribution unit and the storage medium provided by the embodiment of the invention are that the fixed desktop distribution unit establishes high-level connection above the PDCP layer with the CU, then the wireless terminal and the core network are simulated to establish a data bearing channel above the PDCP layer, and the communication between the core network and the terminal based on Ethernet access is realized based on the data bearing channel. In this way, the terminal can access the fixed desktop distribution unit through the Ethernet, communicate with the data bearing channel established by the core network through the fixed desktop distribution unit, and further, the access mode of the wired access network is compatible in the wireless access network, the combination of the wireless access network and the wired access network is realized, and the wireless access network and the wired access network share the same core network, so that the core network can uniformly manage communication resources in the wireless access network and the wired access network, resource multiplexing is facilitated in the two networks, resource utilization rate is improved, and the overall cost of the communication network is reduced.
Additional features and corresponding advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of a communication system according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a protocol architecture of a fixed desktop distribution unit according to a first embodiment of the present invention;
FIG. 3 is a flow chart of a communication method according to a first embodiment of the present invention;
fig. 4 is a flowchart of a communication method provided in example 1 of the second embodiment of the present invention;
fig. 5 is a schematic diagram of a PDU SESSION data channel established by the fixed desktop distribution unit and the core network in example 1 according to the second embodiment of the present invention;
FIG. 6 is a flow chart of a communication method provided in example 2 of the second embodiment of the present invention;
fig. 7 is a schematic diagram of a PDU SESSION data channel established by the fixed desktop distribution unit and the core network in example 2 according to the second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a communication device according to a third embodiment of the present invention;
fig. 9 is a schematic diagram of a hardware structure of a fixed desktop distribution unit according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is given with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment one:
in order to solve the problem that in the related art, the wired broadband access network and the wireless broadband access network are mutually independent, so that the two networks need to occupy operation and maintenance resources and physical resources respectively, the resources cannot be reused, the resource utilization rate is affected, and the cost of the communication network is high, the embodiment provides a communication scheme, and firstly please refer to a schematic diagram of a communication system capable of implementing the communication scheme shown in fig. 1:
the communication system 1 includes a CU10, at least one DU 11 and at least one fixed desktop distribution unit 12. The CU10 is communicatively connected to a core network, and may include a media gateway, a charging system, and the like. CU10 will be communicatively connected to DU 11 and fixed desktop distribution unit 12, respectively. It should be noted that, in this embodiment, the fixed desktop distribution unit 12 is similar to a DU for the CU10, so the fixed desktop distribution unit 12 may be regarded as a "Fake DU" (i.e. an analog DU), and thus, the connection manner of the fixed desktop distribution unit 12 and the CU10 is similar to the connection manner of the DU 11 and the CU 10: the fixed desktop distribution unit 12 establishes a higher layer connection above the PDCP layer with the CU10, it being understood that the term "above" is meant herein to include the PDCP layer itself.
Unlike DU 11, the fixed desktop distribution unit 12 allows the terminal to access based on ethernet, while DU 11 allows the wireless terminal to access through the air interface. Therefore, in the DU 11, protocol functions of the RLC (Radio Link Control ) layer, MAC (Media Access Control, medium access control) layer, PHY (Physical layer), and the like are required to be supported. However, the fixed desktop distribution unit 12 is configured for the terminal to access based on ethernet, so the fixed desktop distribution unit 12 does not need to support the protocols of the RLC layer, the MAC layer, the PHY layer, and other bottom layers, but supports the related protocols of ethernet, please refer to a network protocol architecture schematic of the fixed desktop distribution unit 12 shown in fig. 2. In fig. 3, the fixed desktop distribution unit 12 includes an ETH (Ethernet) protocol-based bottom layer, a PDCP layer, an IP (Internet Protocol ) layer, and an application layer.
Since the fixed desktop distribution unit 12 has established a higher layer connection above the PDCP layer with the CU10, the fixed desktop distribution unit 12 may establish a data bearer path directly with the core network through the CU10 for use in communication with the core network by an ethernet access based terminal.
The communication method provided in the present embodiment is explained below with reference to a flowchart shown in fig. 3:
s302: a higher layer connection above the PDCP layer is established with the CU.
Because the fixed desktop distribution unit 12 does not support protocols of the RLC layer, MAC layer, and PHY layer, in some examples of this embodiment, the fixed desktop distribution unit 12 may be implemented by a standard DU after function reduction, for example, by degrading a standard DU to a fixed station having a dial-like function while retaining the function of the standard DU above the PDCP layer, thereby obtaining the fixed desktop distribution unit 12.
In order to achieve communication between the ethernet-based terminal and the core network, it is first necessary to ensure that the communication between the fixed desktop distribution unit 12 and the CU10 is achieved, so that the fixed desktop distribution unit 12 establishes a higher layer connection above the PDCP layer with the CU 10.
S304: the analog wireless terminal and the core network establish a data bearer channel over the PDCP layer.
When the fixed table-top distribution unit 12 establishes a data bearer with the core network, the fixed table-top distribution unit 12 is modeled as a wireless terminal that directly establishes a data bearer with the core network over the PDCP layer. Therefore, the fixed desktop distribution unit 12 is again considered a "Fake UE" (i.e., analog UE) in establishing a data-bearing channel with the core network.
In this embodiment, the data bearer established by the fixed desktop distribution unit 12 and the core network may be a PDU SESSION data channel, and those skilled in the art will understand that, if other data channels may be established between the core network and the DU in the future communication system, the data bearer established by the fixed desktop distribution unit 12 and the core network is not limited to the PDU SESSION data channel.
In some examples, only one data bearer path may be established between the fixed desktop distribution unit 12 and the core network, which may be used by all ethernet access-based terminals. In this scheme, when a certain terminal is accessed by the fixed desktop distribution unit 12, a data carrying channel is established above the PDCP layer based on its own authentication identifier and the core network, so that the terminal based on ethernet access can communicate with the core network. While the ethernet access-based terminal uses the data bearer channel to communicate, other terminals may also access to the fixed desktop distribution unit 12 through the ethernet, and the fixed desktop distribution unit 12 may also use the data bearer channel that has been established to implement interaction between the other ethernet access-based terminals and the core network. Of course, the fixed desktop distribution unit 12 may also establish a data bearer with the core network immediately after the high-level connection with the CU is achieved, whether or not there is terminal access at present.
However, in other examples of this embodiment, the fixed desktop distribution unit 12 and the core network may also respectively establish dedicated data bearer channels for each ethernet access-based terminal. For example, in one example, the fixed desktop distribution unit 12 may manage an authentication identifier resource pool in which a plurality of identity identifiers may exist at the same time, and if a terminal currently exists under the fixed desktop distribution unit 12 through ethernet access, the fixed desktop distribution unit 12 may acquire an identity identifier currently in an idle state, i.e., not occupied by another terminal, from the authentication identifier resource pool, and establish a mapping relationship between the acquired identity identifier and the terminal based on ethernet access, thereby achieving an effect of allocating the identity identifier to the terminal based on ethernet access. On the other hand, after assigning an identity authentication identifier to the ethernet access based terminal, the fixed desktop distribution unit 12 may establish a data bearer channel with the core network based on the identity authentication identifier, where the data bearer channel is dedicated to the corresponding ethernet access based terminal and only transmits traffic corresponding to the ethernet access based terminal.
In some examples of this embodiment, the identity authentication identifier may include, but is not limited to, an IMSI (International Mobile Subscriber Identity ).
S306: communication between the core network and the Ethernet access based terminal is realized based on the data bearing channel.
After the fixed desktop distribution unit 12 establishes a data bearer path with the core network over the PDCP layer, communication between the ethernet access-based terminal and the core network can be achieved based on the data bearer path. As can be seen from the foregoing description, the established data bearer channel may be common to all ethernet access-based terminals that access the fixed desktop distribution unit 12, or may belong to only one ethernet access-based terminal.
It can be understood that in the former configuration scheme of the data bearer, there may be two or more terminals based on ethernet access that use the same data bearer to implement the internet service, but the services performed by the respective terminals based on ethernet access may be different, for example, online video viewing services requiring a high transmission rate are performed by the terminals based on ethernet access, and some terminals based on ethernet access perform file transmission services requiring high security, but because there is only one data bearer, the data bearer has no way to perform corresponding transmission according to the requirements and characteristics of the services, so only a general transmission manner can be provided. However, in the latter configuration scheme of the data carrying channel, since different terminals based on ethernet access have different data carrying channels, the transmission mode of the data transmission channel can be matched with the service requirement of the terminal based on ethernet access, which is beneficial to the targeted management of service transmission.
According to the communication method and the communication system, the fixed table type distribution unit capable of receiving the Ethernet access of the terminal is arranged in the CU-DU system, and the data bearing channel for communicating with the core network is established on the PDCP layer for the terminal based on the Ethernet access, so that the CU-DU system and the fixed table are combined, the wireless access network and the wired broadband access network can be fused, one core network is shared, resource multiplexing of high-level equipment of the core network is facilitated, and the construction cost and the operation and maintenance cost of the communication network are reduced.
Embodiment two:
in order to enable those skilled in the art to better understand the advantages and details of the communication scheme provided in the foregoing embodiments, the present embodiment will further describe the communication method and the communication system with reference to examples:
it is assumed that the data channel established between the fixed desktop distribution unit and the core network in this embodiment is a PDU SESSION data channel, and the PDU SESSION data channel is established based on IMSI.
Example 1:
assuming a fixed desktop distribution unit has only one IMSI, see below for a flow chart of one communication method shown in fig. 4:
s402: the fixed desktop distribution unit establishes a higher layer connection above the PDCP layer with the CU.
The fixed table type distribution unit can be obtained by performing function degradation on the standard DU, for example, the standard DU is degraded into a fixed table with a similar dialing function after performing function reduction, and the fixed table type distribution unit can simulate the PDCP layer of the 5G terminal and above to realize the function of directly establishing a data carrying channel through the PDCP layer without going through the bottom layer such as wireless RLC, MAC, PHY.
The fixed desktop distribution unit is similar to a standard router in external interface, and comprises an ethernet interface for docking with a CU, and a plurality of ethernet interfaces (including WIFI interfaces) for docking with a terminal side. In this embodiment, the fixed desktop distribution unit needs to establish a higher layer connection above the PDCP layer when connecting to the CU. It will be appreciated that the CU shall assume the radio access network functions it should originally assume in addition to the convergence functions of the wired access network. Under the PDCP layer, the fixed desktop distribution unit interfaces with the CUs using standard ethernet protocols.
For the CU in this embodiment, as well as the core network devices above the CU, such as media gateways, charging systems, etc., standard devices of the wireless system may be employed.
S404: the fixed desktop distribution unit establishes a PDU SESSION data channel with the core network over the PDCP layer based on the IMSI allocated for itself.
After the connection between the fixed desktop distribution unit and the CU is completed, the fixed desktop distribution unit may establish a PDU SESSION data channel with the core network over the PDCP layer. In this embodiment, each fixed table-type distribution unit has an IMSI, that is, the IMSI is allocated in units of the fixed table-type distribution unit, so that when the PDU SESSION data channel is established with the core network, the fixed table-type distribution unit can only establish a PDU SESSION data channel with the core network according to its own IMSI.
It will be understood by those skilled in the art that, if the core network and the DU are supported to establish other data channels in the future communication system, the data bearer channel established by the fixed desktop distribution unit and the core network is not limited to the PDU SESSION data channel.
S406: the fixed desktop distribution unit accepts ethernet-based access for at least one terminal.
The fixed desktop distribution unit can accept the access of a wired terminal or a mobile terminal through an Ethernet interface, such as a WIFI interface or a network cable interface, which is provided by the fixed desktop distribution unit and is in butt joint with the terminal side.
S408: the fixed desktop distribution unit realizes communication between the terminal based on Ethernet access and the core network based on the established PDU SESSION data channel.
After the terminal is connected to the fixed desktop distribution unit based on the ethernet, the fixed desktop distribution unit can realize communication between the terminal based on the ethernet and the core network based on the PDU SESSION data channel established by the fixed desktop distribution unit and the core network, it can be understood that one or more terminals based on the PDU SESSION data channel established by the fixed desktop distribution unit may be used by a plurality of terminals based on the ethernet access after the fixed desktop distribution unit establishes the PDU SESSION data channel with the core network, for example, in the schematic diagram shown in fig. 5, the PDU SESSION data channel established by the fixed desktop distribution unit (shown by a thick solid line in the figure) is used by a plurality of terminals based on the ethernet access.
It should be understood that in this embodiment, the IMSIs are allocated in units of fixed table-top distribution units, but each fixed table-top distribution unit has only one IMSI, so that the PDU SESSION data channel can be established above the PDCP layer only based on the own IMSI and the core network. However, in other examples, the IMSIs are also allocated in units of a fixed table distribution unit, however, a fixed table distribution unit may have several IMSIs at the same time, in which case, the fixed table distribution unit may use multiple IMSIs owned by itself to establish multiple PDU SESSION data channels with the core network. After a plurality of terminals are accessed based on the Ethernet, the fixed desktop distribution unit can distribute the terminals based on the Ethernet to different PDU SESSION data channels. For example, assuming that the fixed desktop distribution unit and the core network establish two PDU SESSION data channels, namely, a PDU SESSION data channel a and a PDU SESSION data channel b, on the PDCP layer, when a terminal is accessed based on ethernet, the fixed desktop distribution unit may choose to enable the terminal based on ethernet to communicate with the core network using the PDU SESSION data channel a, or may choose to enable the terminal based on ethernet to communicate using the PDU SESSION data channel b. Even more, in some examples, each PDU SESSION data channel established by the fixed desktop distribution unit carries a service with a different service requirement, so that the fixed desktop distribution unit can determine, for the ethernet access-based terminal, the PDU SESSION data channel to be used according to the service currently to be performed by the ethernet access-based terminal.
Example 2:
assuming that the fixed desktop distribution unit manages an IMSI pool with multiple IMSIs in the IMSI pool, please refer to the flow chart of a communication method shown in fig. 6 below:
s602: the fixed desktop distribution unit establishes a higher layer connection above the PDCP layer with the CU.
When the fixed desktop distribution unit establishes a PDCP layer higher layer connection with the CU, the fixed desktop distribution unit establishes a connection with the CU in a "Fake DU" manner.
S604: the fixed desktop distribution unit accepts an ethernet-based access for a terminal.
It will be appreciated that a fixed desktop distribution unit will typically be capable of supporting ethernet-based access by multiple terminals, only one of which is illustrated herein as an example of ethernet-based access, and those skilled in the art will appreciate that other terminals may be similarly ethernet-based access under a fixed desktop distribution unit.
S606: the fixed desktop distribution unit obtains an IMSI currently in a non-use state from the IMSI pool and assigns the IMSI to the ethernet access-based terminal.
After the fixed desktop distribution unit determines that a new terminal is accessed based on the Ethernet, an IMSI which is in a non-use state currently can be obtained from an IMSI pool managed by the fixed desktop distribution unit, and the mapping relation between the obtained IMSI and the terminal which is to be allocated with the IMSI and is accessed based on the Ethernet is recorded, so that the effect of allocating the IMSI to the terminal which is accessed based on the Ethernet is achieved.
S608: the fixed desktop distribution unit establishes a PDU SESSION data channel over the PDCP layer with the core network based on the acquired IMSI.
In this embodiment, because the IMSI is allocated in units of the ethernet access-based terminals, each ethernet access-based terminal has its own dedicated PDU SESSION data channel, which is more convenient for the fixed desktop distribution unit to implement data transmission between the core network and the service management of the ethernet access-based terminals according to the data transmission manner between the core network and the PDU SESSION data channel, as compared with the scheme in which multiple ethernet access-based terminals share one PDU SESSION data channel, in fig. 7, the PDU SESSION data channel is still illustrated in bold lines, referring to fig. 7.
S610: the fixed desktop distribution unit realizes the communication between the terminal based on the Ethernet access and the core network based on the established PDU SESSION data channel.
After establishing a PDU SESSION data channel belonging to the terminal based on the Ethernet access, the fixed desktop distribution unit realizes the communication between the terminal based on the Ethernet access and the core network based on the PDU SESSION data channel.
Based on the communication scheme provided by the embodiment, operators of wireless and fixed network equipment can share one set of high-level equipment by two networks when the networks are laid, so that a large amount of equipment construction cost and later maintenance cost are saved. In addition, the terminal based on the Ethernet access can directly use the dominant functions of the wireless core network such as the network slice, and the like, so that operators can conveniently provide differentiated services.
Embodiment III:
in this embodiment, a communication device is provided, please refer to a schematic structural diagram of the communication device shown in fig. 8:
the communication device 80 includes a distribution simulation module 802, a terminal simulation module 804, and a data communication module 806, where the distribution simulation module 802 is configured to establish a higher layer connection above the PDCP layer with the CU; the terminal simulation module 804 is configured to simulate the wireless terminal and the core network to establish a data bearer channel above the PDCP layer; the data communication module 806 is configured to implement communication between the core network and the terminal based on ethernet access based on the data bearer channel.
It will be appreciated that the communication device 80 of this embodiment may be deployed on a fixed desktop distribution unit, for example, the fixed desktop distribution unit 12 of the communication system of fig. 1, and that the functions of the distribution simulation module 802, the terminal simulation module 804, and the data communication module 806 in the communication device 80 may be implemented by a processor of the fixed desktop distribution unit in conjunction with the communication unit.
The fixed desktop distribution unit is a "Fake DU" for a CU, so the distribution simulation module 802 is connected to the CU in a similar manner as the DU is connected to the CU: the distribution simulation module 802 establishes a higher layer connection above the PDCP layer with the CU, it being understood that the term "above" is meant herein to include the PDCP layer itself.
Because the fixed desktop distribution unit does not support protocols of the RLC layer, MAC layer, and PHY layer, in some examples of this embodiment, the fixed desktop distribution unit may be implemented by a standard DU after function reduction, for example, by degrading a standard DU to a fixed station having a dial-like function while retaining the function of the standard DU above the PDCP layer, thereby obtaining the fixed desktop distribution unit.
In order to realize communication between the terminal and the core network based on the ethernet access, it is first necessary to ensure that the communication between the distribution simulation module 802 and the CU is achieved, so the distribution simulation module 802 will establish a higher layer connection above the PDCP layer with the CU.
When the distribution simulation module 802 establishes a data bearer with the core network, the terminal simulation module 804 simulates a wireless terminal to directly establish a data bearer with the core network over the PDCP layer. Therefore, the fixed desktop distribution unit is again considered a "Fake UE" in the process of establishing a data bearer path with the core network.
In this embodiment, the data bearer established by the terminal simulation module 804 and the core network may be a PDU SESSION data channel, and it will be understood by those skilled in the art that, if other data channels may be established between the core network and the DU in the future communication system, the data bearer established by the terminal simulation module 804 and the core network is not limited to the PDU SESSION data channel.
In some examples, only one data bearer path may be established between the terminal emulation module 804 and the core network, which may be used by all ethernet access-based terminals. In this scheme, when a terminal accesses a fixed desktop distribution unit based on ethernet, the terminal simulation module 804 establishes a data bearer channel above the PDCP layer with the core network based on the identity authentication identifier of the fixed desktop distribution unit for the terminal and the core network based on ethernet access. While the ethernet access-based terminal uses the data bearer channel to communicate, other terminals may also access the fixed desktop distribution unit through the ethernet, and the data communication module 806 may also use the established data bearer channel to implement interaction between the other ethernet access-based terminals and the core network. Of course, the terminal simulation module 804 may also establish a data bearer with the core network immediately after implementing the higher-layer connection with the CU, whether or not there is an ethernet access-based terminal access at present.
However, in other examples of this embodiment, the terminal simulation module 804 and the core network may also respectively establish dedicated data bearer channels for each ethernet access-based terminal. For example, in one example, the terminal simulation module 804 may manage an authentication identifier resource pool, where there may be multiple identity identifiers at the same time, and if there is a terminal currently accessing the fixed desktop distribution unit through the ethernet, the terminal simulation module 804 may obtain an identity identifier currently in an idle state, i.e., not occupied by another terminal, from the authentication identifier resource pool, and establish a mapping relationship between the obtained identity identifier and the terminal based on the ethernet access, so as to achieve an effect of assigning the identity identifier to the terminal based on the ethernet access. On the other hand, after assigning an identity authentication identifier to the ethernet access-based terminal, the terminal simulation module 804 may establish a data bearer channel with the core network based on the identity authentication identifier, where the data bearer channel is dedicated to the corresponding ethernet access-based terminal and only transmits traffic corresponding to the ethernet access-based terminal.
In some examples of this embodiment, the identity authentication identifier may include, but is not limited to, an IMSI.
After the terminal simulation module 804 establishes a data bearer path with the core network above the PDCP layer, the data communication module 806 can implement communication between the ethernet access-based terminal and the core network based on the data bearer path. As can be seen from the foregoing description, the data bearer established by the terminal simulation module 804 may be shared by all terminals under the fixed desktop distribution unit based on ethernet access, or may belong to only one terminal based on ethernet access.
It can be understood that in the former configuration scheme of the data bearer, there may be two or more terminals based on ethernet access that use the same data bearer to implement the internet service, but the services performed by the respective terminals based on ethernet access may be different, for example, online video viewing services requiring a high transmission rate are performed by the terminals based on ethernet access, and some terminals based on ethernet access perform file transmission services requiring high security, but because there is only one data bearer, the data bearer has no way to perform corresponding transmission according to the requirements and characteristics of the services, so only a general transmission manner can be provided. However, in the latter configuration scheme of the data carrying channel, since different terminals based on ethernet access have different data carrying channels, the transmission mode of the data transmission channel can be matched with the service requirement of the terminal based on ethernet access, which is beneficial to the targeted management of service transmission.
According to the communication device provided by the embodiment, the fixed table type distribution unit capable of receiving the Ethernet access of the terminal is arranged in the CU-DU system, the data bearing channel for communicating with the core network is established on the PDCP layer for the terminal based on the Ethernet access, the combination of the CU-DU system and the fixed table is realized, the wireless access network and the wired broadband access network can be fused, the core network is shared, the resource multiplexing of high-level equipment of the core network is facilitated, and the construction cost and the operation and maintenance cost of the communication network are reduced.
Embodiment four:
the present embodiments provide a storage medium including volatile or nonvolatile, removable or non-removable media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, computer program modules or other data. Storage media includes, but is not limited to, RAM (Random Access Memory ), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory, charged erasable programmable Read-Only Memory), flash Memory or other Memory technology, CD-ROM (Compact Disc Read-Only Memory), digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
The storage medium in this embodiment may store one or more computer programs that may be read, compiled, and executed by one or more processors, and in this embodiment, the storage medium may store a communication program that may be executed by one or more processors to implement the flow of any one of the communication methods described in the foregoing embodiments.
The present embodiment also provides a computer program (or called computer software) that can be distributed on a storage medium and executed by a computable device to implement the flow of any one of the communication methods described in the foregoing embodiments; and in some cases at least one of the steps shown or described may be performed in a different order than that described in the above embodiments.
The present embodiment also provides a computer program product comprising computer readable means having stored thereon a computer program as shown above. The computer readable means in this embodiment may include a storage medium as shown above.
In addition, this embodiment provides a fixed desktop distribution unit, as shown in fig. 9: the stationary table-type distribution unit 90 includes a processor 91, a memory 92, and a communication bus 93 for connecting the processor 91 and the memory 92, wherein the memory 92 may be the aforementioned storage medium storing the communication program. The processor 91 may read the communication program, compile and execute the flow of implementing the communication method in the foregoing embodiment:
the processor 91 establishes a higher layer connection above the PDCP layer with the CU, then simulates the wireless terminal and the core network to establish a data bearer path above the PDCP layer, and then enables communication between the core network and the ethernet access-based terminal based on the data bearer path.
In some examples of this embodiment, the processor 91 receives the terminal ethernet-based access before the analog wireless terminal establishes a data bearer path with the core network over the PDCP layer. When the analog wireless terminal and the core network establish a data bearer over the PDCP layer, the processor 91 may assign an identity to the ethernet access based terminal, and then use the identity to simulate the wireless terminal and the core network to establish a data bearer over the PDCP layer that is specific to the ethernet access based terminal.
Optionally, when the processor 91 allocates the identity authentication identifier, the processor 91 may acquire an identity authentication identifier currently in a non-use state from the authentication identifier resource pool, and record a correspondence between the acquired identity authentication identifier and the terminal based on ethernet access, so as to allocate the identity authentication identifier to the terminal based on ethernet access.
In some examples of this embodiment, the processor 91 simulates the establishment of a data bearer channel with the core network over the PDCP layer based on the identity authentication identification assigned to the fixed desktop distribution unit 90; and then receiving the access of at least one terminal based on the Ethernet, and realizing the communication between all the access terminals based on the Ethernet and the core network through the data bearing channel.
Optionally, the identity authentication identifier includes, but is not limited to, an IMSI.
In some examples, the data-bearing channels include, but are not limited to, a protocol PDU SESSION data channel.
The fixed desktop distribution unit provided by the embodiment enables the terminal based on the Ethernet access to access the fixed desktop distribution unit through the Ethernet, and communicates with the data bearing channel established by the core network through the fixed desktop distribution unit, so that the access mode of the wired access network is compatible in the wireless access network, the combination of the wireless access network and the wired access network is realized, the wireless access network and the wired access network share the same core network, the core network can uniformly manage communication resources in the wireless access network and the wired access network, resource multiplexing is facilitated in the two networks, and the cost of the communication network is reduced.
It will be apparent to one skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the apparatus disclosed above may be implemented as software (which may be implemented in program code executable by a computing apparatus), firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media), for execution by a computing device, and in some cases, the steps shown or described may be performed in a different order than that described herein. The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media. Therefore, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a further detailed description of embodiments of the invention in connection with the specific embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims (10)

1. A method of communication, the method being adapted for use with a communication device, the method comprising:
establishing high-layer connection with a centralized unit CU, wherein the high-layer is a layer above a packet data convergence protocol PDCP layer;
establishing a data bearing channel above the PDCP layer by the analog wireless terminal and the core network;
and realizing communication between the core network and the terminal based on Ethernet access based on the data bearing channel.
2. The communication method of claim 1, wherein the analog radio terminal and core network further comprise, prior to establishing a data bearer path over the PDCP layer:
receiving access of a terminal based on Ethernet;
the establishing a data bearer channel between the analog wireless terminal and the core network above the PDCP layer includes:
distributing an identity authentication mark for the terminal based on the Ethernet access;
and establishing a data bearing channel special for the terminal based on the Ethernet access above the PDCP layer by adopting the identity authentication mark to simulate the wireless terminal and the core network.
3. The communication method of claim 2, wherein said assigning an identity authentication identifier to the ethernet access-based terminal comprises:
acquiring an identity authentication identifier which is currently in a non-use state from an authentication identifier resource pool;
recording the obtained corresponding relation between the identity authentication mark and the terminal based on the Ethernet access, and distributing the identity authentication mark to the terminal based on the Ethernet access.
4. The communication method of claim 1, wherein the establishing a data bearer path with a core network over the PDCP layer by the analog radio terminal comprises:
establishing a data bearer channel above the PDCP layer based on the identity authentication identification allocated for the fixed desktop distribution unit emulating the wireless terminal and the core network;
the communication between the core network and the terminal based on the Ethernet access is realized based on the data bearing channel, which comprises the following steps:
accepting at least one terminal access based on Ethernet;
and realizing communication between all terminals which are accessed based on the Ethernet and the core network through the data bearing channel.
5. A communication method according to any of claims 2-4, characterized in that the identity authentication identifier comprises an international mobile subscriber identity IMSI.
6. The communication method according to any of claims 1-4, wherein the data bearer channel comprises a protocol data unit SESSION data channel.
7. A communication apparatus, comprising:
the distribution simulation module is used for establishing high-level connection with the CU, wherein the high-level is a layer above the PDCP layer;
a terminal simulation module for simulating the wireless terminal and the core network to establish a data bearing channel above the PDCP layer;
and the data communication module is used for realizing communication between the core network and the terminal based on Ethernet access based on the data bearing channel.
8. A fixed desktop distribution unit comprising a processor, a memory, and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
the processor is configured to execute one or more programs stored in the memory to implement the steps of the communication method according to any one of claims 1 to 6.
9. A communication system comprising a CU, at least one distribution unit DU and a fixed desktop distribution unit as claimed in claim 8; the DU and the fixed desk type distribution unit are connected with the CU by a higher layer above the PDCP layer; the DU accepts wireless terminal to access through air interface mode, the DU accepts terminal to access through Ethernet.
10. A storage medium storing one or more programs executable by one or more processors to implement the steps of the communication method of any one of claims 1 to 6.
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