CN112996074B - Routing method and device under shared cell, terminal equipment and storage medium - Google Patents
Routing method and device under shared cell, terminal equipment and storage medium Download PDFInfo
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- CN112996074B CN112996074B CN202110257294.6A CN202110257294A CN112996074B CN 112996074 B CN112996074 B CN 112996074B CN 202110257294 A CN202110257294 A CN 202110257294A CN 112996074 B CN112996074 B CN 112996074B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present disclosure provides a routing method, apparatus, terminal device and computer readable storage medium under a shared cell, the method comprising: acquiring all interface information and topology information of a fronthaul multiplexer; acquiring cell user plane information of each radio access network radio frequency unit; calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer; and configuring a southbound interface of the fronthaul multiplexer based on the routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to the corresponding radio access network radio frequency unit based on the southbound interface, and respectively selects the uplink user plane data of each cell to combine based on the southbound interface. The embodiment of the disclosure can at least realize the correct routing function in the multi-cell scene of the shared cell.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a routing method in a shared cell, a routing apparatus in a shared cell, a terminal device, and a computer-readable storage medium.
Background
The O-RAN WG4 fronthaul specification introduces a shared cell concept, which supports sharing one cell or Multiple cells by all open Radio access network Radio Frequency units (O-RAN Radio Frequency units, abbreviated as O-RUs) under the fronthaul multiplexer FHM, but the O-RAN WG4 fronthaul specification does not provide a Multiple cell scenario (Multiple cells) and how the FHM branches downlink data of different cells to different O-RUs and how to select and combine uplink data from different cells and send the uplink data to a baseband Unit (O-RAN Distribution Unit, abbreviated as O-DU), so that a correct routing function may not be achieved in the Multiple cell scenario of the shared cell.
Disclosure of Invention
The present disclosure provides a routing method, apparatus, terminal device and computer readable storage medium under a shared cell to at least solve the above problems.
According to an aspect of the embodiments of the present disclosure, a routing method under a shared cell is provided, including:
acquiring all interface information and topology information of a fronthaul multiplexer;
acquiring cell user plane information of each radio access network radio frequency unit;
calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer; and the number of the first and second groups,
and configuring a southbound interface of the fronthaul multiplexer based on the routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to a corresponding radio access network radio frequency unit based on the southbound interface, respectively selects the uplink user plane data of each cell based on the southbound interface to combine, and sends the combined uplink user plane data to a baseband unit.
In one embodiment, the cell user plane information includes: cell number, unique antenna carrier identification of each cell and preselected route calculation mode,
the calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer includes:
and calculating the routing information of each cell on the fronthaul multiplexer according to a preselected routing calculation mode based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer.
In one embodiment, the method further comprises:
presetting a plurality of route calculation modes, wherein the route calculation modes comprise: the mode of the same cell, the mode of dividing equally according to the number of cells, the mode of separating according to the forward multiplexer and the mode of routing port groups or any more modes;
pre-selecting a certain route calculation mode from the plurality of route calculation modes;
the acquiring cell user plane information of each radio access network radio frequency unit includes:
acquiring initial cell user plane information of each radio access network radio frequency unit, wherein the initial cell user plane information comprises cell number and unique identification of each cell antenna carrier; and the number of the first and second groups,
and carrying the routing calculation mode selected in advance in the initial cell user plane information to obtain the cell user plane information of each radio access network radio frequency unit.
In one embodiment, the configuring the southbound interface of the fronthaul multiplexer based on the routing information for each cell on the fronthaul multiplexer includes:
judging whether the preselected route calculation mode is the same cell mode;
if the cell mode is the same, configuring a southbound interface of the fronthaul multiplexer based on the routing information of the cell on the fronthaul multiplexer, copying downlink user plane data of the cell to the fronthaul multiplexer based on all interface information and topology information of the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of the cell to all radio access network radio frequency units, merges uplink user plane data of the cell by the fronthaul multiplexer, and sends the merged uplink user plane data to a baseband unit.
According to another aspect of the embodiments of the present disclosure, there is provided a routing apparatus under a shared cell, including:
the first acquisition module is arranged for acquiring all interface information and topology information of the forward multiplexer;
a second obtaining module, configured to obtain cell user plane information of each radio access network radio frequency unit;
a calculation module configured to calculate routing information of each cell on the fronthaul multiplexer based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer; and the number of the first and second groups,
and the first routing module is configured to configure a southbound interface of the fronthaul multiplexer based on the routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to a corresponding radio access network radio frequency unit based on the southbound interface, respectively selects the uplink user plane data of each cell based on the southbound interface to combine, and sends the combined uplink user plane data to the baseband unit.
In one embodiment, the cell user plane information includes: cell number, unique antenna carrier identification of each cell and preselected route calculation mode,
the calculation module is specifically configured to calculate the routing information of each cell on the fronthaul multiplexer according to a preselected routing calculation mode based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer.
In one embodiment, the apparatus further comprises:
a setting module configured to preset a plurality of route calculation modes, the plurality of route calculation modes including: the mode of the same cell, the mode of dividing equally according to the number of cells, the mode of separating according to the forward multiplexer and the mode of routing port groups or any more modes; and the number of the first and second groups,
a selection module configured to pre-select a route calculation mode from the plurality of route calculation modes;
the second obtaining module includes:
a first obtaining unit, configured to obtain initial cell user plane information of each radio access network radio frequency unit, where the initial cell user plane information includes cell number and unique identifier of antenna carrier of each cell; and (c) a second step of,
and the second acquisition unit is set to carry a preselected route calculation mode in the initial cell user plane information to acquire the cell user plane information of each radio access network radio frequency unit.
In one embodiment, the first routing module includes:
a judging unit configured to judge whether or not a pre-selected route calculation mode is a same cell mode;
and the configuration unit is configured to configure a southbound interface of the fronthaul multiplexer based on the routing information of the cell on the fronthaul multiplexer when the judging module judges that the cell mode is the same, copy downlink user plane data of the cell to the fronthaul multiplexer based on all interface information and topology information of the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of the cell to all radio access network radio frequency units, combine uplink user plane data of the cell, and send the combined uplink user plane data to the baseband unit.
The first routing module provides a terminal device according to still another aspect of the embodiments of the present disclosure, which includes a memory and a processor, where the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes the method under the shared cell.
According to yet another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the processor executes the routing method under the shared cell.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the routing method provided by the embodiment of the disclosure acquires all interface information and topology information of a fronthaul multiplexer; acquiring cell user plane information of each radio access network radio frequency unit; calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer; and configuring a southbound interface of the fronthaul multiplexer based on the routing information of each cell, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to the corresponding radio access network radio frequency unit based on the southbound interface, and respectively selects the uplink user plane data of each cell for combination based on the southbound interface. The embodiment of the disclosure can at least realize the correct routing function in the multi-cell scene of the shared cell.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the disclosure may 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 are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example serve to explain the principles of the disclosure and not to limit the disclosure.
FIG. 1A is a schematic diagram of a same cell scenario in the disclosed concept of shared cells;
FIG. 1B is a diagram illustrating a multi-cell scenario in the disclosed shared cell concept;
fig. 2 is a schematic flowchart of a routing method under a shared cell according to an embodiment of the present disclosure;
fig. 3A is a second schematic flowchart of a routing method under a shared cell according to an embodiment of the present disclosure;
fig. 3B is a schematic diagram of downlink data splitting and uplink data combining of the cell in fig. 3A;
fig. 4 is a flowchart illustrating a routing method under a shared cell according to another embodiment of the present disclosure;
fig. 5A is a schematic diagram of cell downlink data offloading in the same cell mode according to the present disclosure;
fig. 5B is a schematic diagram of cell uplink data merging in the same cell mode according to the present disclosure;
fig. 6A is a schematic diagram of downlink data splitting of a cell in a cell number bisection mode according to the present disclosure;
fig. 6B is a schematic diagram of cell uplink data merging in the cell number equal division mode according to the present disclosure;
fig. 7A is a schematic diagram of cell downlink data splitting in a fronthaul multiplexer splitting mode according to the present disclosure;
fig. 7B is a schematic diagram of cell uplink data combining according to the present disclosure in a fronthaul multiplexer detach mode;
fig. 8A is a schematic diagram of cell downlink data offloading in a per-port group routing mode according to the present disclosure;
FIG. 8B is a schematic illustration of the present disclosure for cell uplink data combining in forward multiplexer separation mode;
fig. 9 is a schematic structural diagram of a routing apparatus under a shared cell according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, specific embodiments of the present disclosure are described below in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order; furthermore, the embodiments and features of the embodiments in the present disclosure may be arbitrarily combined with each other without conflict.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of explanation of the present disclosure, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
The distributed Radio access network is composed of a baseband Unit (Base Band Unit, BBU for short), an Extension Unit (EU for short), and a remote Unit (Radio Frequency Unit, RU for short), and is configured as follows: BBU < - > EU < - > RU. The O-RAN WG4 development forward interface working group specification corresponds to: O-DU < - > FHM < - > O-RU. The FHM, as a fronthaul multiplexing device, may access multiple O-RUs, typically up to 8O-RUs.
The O-RAN WG4 open fronthaul working group introduced a Shared Cell concept, supporting two scenarios: 1) Same cell scene; 2) A multi-cell scenario. Wherein the same cell scenario is shown in fig. 1A and the multi-cell scenario is shown in fig. 1B.
Under the Same cell scenario (Same cell celerio): for downlink data, FHM receives Ethernet frame sent from O-DU, copies (copy) intraframe payload eCPRI message to new Ethernet frame, and sends to all O-RUs connected with southbound interface; for uplink data, the FHM receives an extended Common Radio Interface (eCPRI) message sent by each O-RU of the southbound Interface, and performs corresponding merging (combine), constructs a new ethernet frame, and sends the new ethernet frame to the O-DU.
However, the O-RAN WG4 forwarding specification does not provide how to offload downlink data of different cells to different O-RUs and how to select uplink data from different cells and combine them in a multi-cell scenario (Multiple cells discovery). In order to solve the above problem, in the embodiment of the present disclosure, by adding a routing calculation function module, the FHM shunts downlink data of different cells to different O-RUs, and selects and combines uplink data from different cells, thereby implementing a correct routing function in a multi-cell scenario with shared cell characteristics.
Referring to fig. 2, fig. 2 is a schematic flowchart illustrating a routing method in a shared cell according to an embodiment of the present disclosure, where the method is applied to an O-DU and includes steps S201 to S204.
In step S201, all interface information and topology information of the fronthaul multiplexer are acquired.
Specifically, the O-RU and FHM start-up procedures are as follows: 1. O-RU information Retrieval (Retrieval of O-RU information); 2. performing Topology discovery (Topology discovery procedure); 3. starting user plane configuration, retrieving O-RU user plane information and allocating a unique extended antenna carrier wave eAxC-ID(s) to each cell; 4. in this embodiment, a cell Route calculation Module (Route computer Module) is newly added to the O-DU to calculate Route information of each cell; 5. shared cell north-south node configuration (Shared cell configuration); 6. FHM user plane configuration.
The FHM all-interface information and topology information comprise FHM north-direction node information and FHM south-direction node information. If the topology structure is FHM cascade, all cascaded FHM topology information needs to be input.
The FHM topology information structure is described as follows:
1) Defining a node structure, the structure containing the following information:
a node MAC address;
the node type is as follows: RU, FHM or DH;
2) Defining a linking structure, the structure containing the following information:
MAC address of RU port connected to opposite end node;
a correspondent node structure;
3) Defining a topology structure, the structure comprising the following information:
northbound node link structure
Southbound nodes link the list of structures.
After the steps 1 and 2 of the O-RU initiation procedure, the O-DU obtains all interface information and topology information of the FHM, including its northbound node connection and southbound interface connection. And 3, obtaining user plane information of each cell. These information are used as input and transmitted to the cell route calculation module, and after step 4, the route information of each cell on FHM is obtained. In steps 5 and 6, the O-DU can configure the south interface and the north interface of FHM according to the cell routing information in step 4 to realize the shunting and merging of FHM to different cell data.
It should be noted that the above-mentioned O-RU and FHM start-up procedures only list part of the start-up procedures related to the solution, and the new cell route calculation steps, and other start-up procedures refer to the O-RAN WG4 forward specification.
In step S202, cell user plane information of each radio access network radio frequency unit is obtained.
In one embodiment, the cell user plane information includes the number of cells, the unique identifier of each cell antenna carrier, eAxC-ID, and a preselected route calculation mode, wherein,
the cell user plane information structure is described as follows:
1) Defining a cell structure, the structure comprising the following information: a cell identity; a cell downlink eAxcID list; a cell uplink eAxcID list; 2) Defining an information structure, the structure containing the following information: the number of cells; a cell structure list; a preselected route calculation mode.
In step S203, based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer, the route information of each cell on the fronthaul multiplexer is calculated according to a route calculation mode pre-selected by each radio access network radio frequency unit. In an embodiment, the step S203 specifically includes:
and calculating the routing information of each cell on the fronthaul multiplexer according to the preselected routing calculation mode based on all interface information, topology information and cell user plane information of the fronthaul multiplexer.
In step S204, a southbound interface of the fronthaul multiplexer is configured based on the routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to a corresponding radio access network radio frequency unit based on the southbound interface thereof, and respectively selects the uplink user plane data of each cell based on the southbound interface thereof to combine, and sends the combined uplink user plane data to the baseband unit.
In practical application, the system configures the south-to-north interface of the forward multiplexer based on the routing information of each cell on the forward multiplexer, and configures the north-to-south interface of the forward multiplexer based on the routing information, thereby implementing data splitting and merging of the south-to-north interfaces.
Specifically, the routing information of each cell on the FHM is output according to the routing result calculated by the routing calculation module. The data structure of the routing information contains routing information of each cell, and it is known which southbound interfaces are allocated to which eaxc-ids(s) of the cell, wherein the cell routing data structure can be described as follows:
defining a cell node structure, the structure comprising the following information: 1) A cell northbound node structure; 2) A cell southbound node structure list;
defining a cell routing structure, the structure comprising the following information: 1) A cell downlink eAxcID list; 2) A cell uplink eAxcID list; 3) Copying a cell node structure; 4) And merging the node structures of the cells.
For ease of understanding, as shown in fig. 3A and 3B, a distributed base station is configured to: one O-DU, one FHM # 1, two O-RUs are hung down: O-RU # 1 and O-RU # 2, two cells: for example, cell # 1 is configured in O-RU # 1, cell # 2 is configured in O-RU # 2, the pre-selected route calculation mode is a split mode according to the number of cells, as shown in FIG. 3A,
s31, carrying out information retrieval by the O-RU # 1;
step S32, carrying out information retrieval by the O-RU # 2;
step S33, topology discovery is carried out to obtain all interface information and topology information of the FHM;
step S34, the O-RU # 1 starts the configuration of the cell # 1 user plane, retrieves the O-RU # 1 user plane information and allocates a unique eAxc-ID (S) for the cell # 1;
step S35, the O-RU # 2 starts the configuration of the cell # 2 user plane, retrieves the O-RU # 2 user plane information and allocates a unique eAxc-ID (S) for the cell # 2;
step S36, calculating the cell route according to the cell number bisection mode to obtain cell route information;
step S37, configuring the north-south node on the FHM (Shared cell configuration) based on the cell routing information cell # 1 and cell # 2;
step S38, cell # 1, and cell # 2 user plane configuration (Shared cell configuration).
After the routing calculation and the user plane configuration are completed, the user plane data routing schemes of cell # 1 and cell # 2 are shown in fig. 3B.
Referring to fig. 4, fig. 4 is a routing method under a shared cell according to another embodiment of the present disclosure, based on the previous embodiment, an O-DU according to an embodiment of the present disclosure sets a plurality of routing calculation modes in advance for selection, each routing calculation mode obtains a different routing manner, and diversity of the routing manner is improved, specifically, the method further includes step S401 and step S402.
In step S401, a plurality of route calculation modes are preset, where the plurality of route calculation modes include one or more of a same cell mode, a split mode according to the number of cells, a split mode according to a fronthaul multiplexer, and a port group route mode;
in step S402, a route calculation mode is selected in advance from the plurality of route calculation modes;
the step S202 is further divided into a step S202a and a step S202b,
in step S202a, initial cell user plane information of each radio access network radio frequency unit is obtained, where the initial cell user plane information includes the number of cells and a unique identifier of an antenna carrier of each cell; and (c) a second step of,
in step S202b, the initial cell user plane information carries a routing calculation mode selected in advance, and cell user plane information of each radio access network radio frequency unit is obtained.
In this embodiment, each mode has different route calculation methods, and as shown in fig. 5 to 9, 4 route calculation modes are set,
fig. 5A and 5B are the SAME CELL (SAME-CELL) mode, the FHM does not need to distinguish the southbound interfaces, but only needs to copy data to all southbound interfaces (downlink) or combine data from all southbound interfaces (uplink) according to the southbound node and northbound node information of the input FHM topology information data structure; the uplink and downlink data routing examples are respectively 5A and fig. 5B;
fig. 6A and 6B show a differential-BY-NUMBER (differential-BY-NUMBER) mode, in which the southbound node and northbound node information of the FHM topology information data structure and the eAxcID list information in the cell user plane information data structure are input to obtain the NUMBER of cells and the NUMBER of southbound interfaces, and then the southbound interfaces are divided according to the NUMBER of cells. For example, if the number of cells is 2 and the number of fhm southbound interfaces is 8, 1/2/3/4 southbound interfaces can be assigned to one cell and 5/6/7/8 southbound interfaces can be assigned to another cell; examples of uplink and downlink data routing are shown in fig. 6A and 6B, respectively;
fig. 7A and 7B illustrate a push-to-talk multiplexer split mode, i.e., FHM cascade (split-BY-FHM) mode, and a cell is allocated to each FHM, i.e., a mapping is required for the topology information data structure of each FHM and the user plane information data structure of each cell. For example, FHMs of level 2, if the number of cells is 2, then one cell is allocated to each FHM, and the same cell pattern is used in each FHM; an upstream and downstream data routing example is shown in fig. 7A and 7B;
fig. 8A and 8B are port group (port group) routing modes, where a user configures port groups, and then allocates cell routes according to different port groups, that is, according to input information about southbound nodes and northbound nodes of an FHM topology information data structure and information about an eAxcID list in a cell user plane information data structure, the cell number and the southbound interface number are obtained, and then the southbound interfaces are allocated according to the port groups configured by the user. For example, if the number of cells is 4, fhm has 8 southbound interfaces, the user can configure four port groups: PG1= {1,2}; PG2= {3,4}; PG3= {5,6}; PG4= {7,8}, four Cell data may be routed to different port groups, e.g., cell-1 data traffic is routed to PG1, cell-2 data traffic is routed to PG2, cell-3 data traffic is routed to PG3, cell-4 data traffic is routed to PG4; an example of upstream and downstream data routing is shown in fig. 8A and 8B.
In some embodiments, the user can set other CUSTOM (CUSTOM) modes according to different requirements.
In this embodiment, the O-DU sets a plurality of different route calculation modes and sends the route calculation modes to the radio frequency unit of the radio access network, so as to select a corresponding route calculation mode to obtain route information, thereby improving the diversity of route modes.
Further, step S104 includes:
judging whether the preselected route calculation mode is the same cell mode;
if the cell mode is the same, configuring a southbound interface of the fronthaul multiplexer based on the routing information of the cell on the fronthaul multiplexer, copying downlink user plane data of the cell to the fronthaul multiplexer based on all interface information and topology information of the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of the cell to all radio access network radio frequency units, merges uplink user plane data of the cell by the fronthaul multiplexer, and sends the merged uplink user plane data to a baseband unit.
And if the forward multiplexer is not in the same cell mode, configuring a southbound interface of the forward multiplexer based on the routing information of each cell on the forward multiplexer.
It can be understood that if in the same cell mode, routing information of the same cell only needs to configure the south interface and the north interface of the forwarding multiplexer, and then all data are copied and combined.
Based on the same technical concept, please refer to fig. 9, where fig. 9 is a schematic structural diagram of a routing apparatus under a shared cell according to an embodiment of the present disclosure, the apparatus includes:
a first obtaining module 91 configured to obtain all interface information and topology information of the fronthaul multiplexer;
a second obtaining module 92, configured to obtain cell user plane information of each radio access network radio frequency unit;
a calculating module 93 configured to calculate routing information of each cell on the fronthaul multiplexer based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer; and the number of the first and second groups,
a first routing module 94, configured to configure a south-direction interface of the fronthaul multiplexer based on the routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to a corresponding radio access network radio frequency unit based on the south-direction interface thereof, respectively selects the uplink user plane data of each cell based on the north-direction interface thereof, combines the uplink user plane data, and sends the combined uplink user plane data to the baseband unit.
In one embodiment, the cell user plane information includes the number of cells, a unique identifier of each cell antenna carrier and a preselected route calculation mode,
the calculation module is specifically configured to calculate the routing information of each cell on the fronthaul multiplexer according to a preselected routing calculation mode based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer.
In one embodiment, the apparatus further comprises:
the system comprises a setting module, a routing module and a control module, wherein the setting module is set to preset a plurality of routing calculation modes, and the plurality of routing calculation modes comprise one or more of a same cell mode, a cell number halving mode, a fronthaul multiplexer separation mode and a port group routing mode; and the number of the first and second groups,
a selection module configured to pre-select a route calculation mode from the plurality of route calculation modes;
the second obtaining module 92 includes:
a first obtaining unit, configured to obtain initial cell user plane information of each radio access network radio frequency unit, where the initial cell user plane information includes cell number and unique identifier of antenna carrier of each cell; and (c) a second step of,
and the second acquisition unit is set to carry a preselected route calculation mode in the initial cell user plane information to acquire the cell user plane information of each radio access network radio frequency unit.
In one embodiment, the first routing module 94 includes:
a judging unit configured to judge whether or not a pre-selected route calculation mode is a same cell mode;
and the configuration unit is configured to configure a southbound interface of the fronthaul multiplexer based on the routing information of the cell on the fronthaul multiplexer when the judgment module judges that the cell mode is the same, copy downlink user plane data of the cell to the fronthaul multiplexer based on all interface information and topology information of the fronthaul multiplexer, so that the fronthaul multiplexer routes the downlink user plane data of the cell to all radio access network radio frequency units respectively, combine uplink user plane data of the cell, and send the combined uplink user plane data to the baseband unit.
The first routing module is based on the same technical concept, and the embodiment of the present disclosure correspondingly provides a terminal device, as shown in fig. 10, where the terminal device includes a memory 101 and a processor 102, the memory 101 stores a computer program therein, and when the processor 102 runs the computer program stored in the memory 101, the processor 102 executes the method under the shared cell.
According to yet another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the processor executes the routing method under the shared cell.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. In a hardware implementation, the division between 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 by several physical components in cooperation. 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). The term computer storage media includes 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 is well known to those of ordinary skill 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 accessed by a computer. In addition, 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 as known to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (8)
1. A routing method under a shared cell is characterized by comprising the following steps:
acquiring all interface information and topology information of a fronthaul multiplexer;
acquiring cell user plane information of each radio access network radio frequency unit;
calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer; and (c) a second step of,
configuring a southbound interface of the fronthaul multiplexer based on the routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of each cell to a corresponding radio access network radio frequency unit based on the southbound interface, respectively selects the uplink user plane data of each cell for combination based on the southbound interface, and sends the combined uplink user plane data to a baseband unit;
the cell user plane information includes: cell number, unique identification of antenna carrier of each cell and preselected route calculation mode,
the calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer includes:
calculating the routing information of each cell on the fronthaul multiplexer according to a preselected routing calculation mode based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer, wherein the routing calculation mode comprises the following steps: the mode of the same cell, the mode of dividing the cell equally, the mode of separating the forwarding multiplexer and the mode of routing the port group or any more of the modes.
2. The method of claim 1, further comprising:
presetting a plurality of route calculation modes;
pre-selecting a route calculation mode from the plurality of route calculation modes;
the acquiring cell user plane information of each radio access network radio frequency unit includes:
acquiring initial cell user plane information of each radio access network radio frequency unit, wherein the initial cell user plane information comprises cell number and unique identification of each cell antenna carrier; and the number of the first and second groups,
and carrying the routing calculation mode selected in advance in the initial cell user plane information to obtain the cell user plane information of each radio access network radio frequency unit.
3. The method of claim 1, wherein the configuring the southbound interface of the fronthaul multiplexer based on the routing information for each cell on the fronthaul multiplexer comprises:
judging whether the preselected route calculation mode is the same cell mode or not;
if the cell mode is the same, configuring a southbound interface of the fronthaul multiplexer based on the routing information of the cell on the fronthaul multiplexer, copying downlink user plane data of the cell to the fronthaul multiplexer based on all interface information and topology information of the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of the cell to all radio access network radio frequency units, merges uplink user plane data of the cell by the fronthaul multiplexer, and sends the merged uplink user plane data to a baseband unit.
4. A routing apparatus under a shared cell, comprising:
the first acquisition module is arranged for acquiring all interface information and topology information of the forward multiplexer;
a second obtaining module, configured to obtain cell user plane information of each radio access network radio frequency unit;
a calculation module configured to calculate routing information of each cell on the fronthaul multiplexer based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer; and the number of the first and second groups,
a first routing module, configured to configure a southbound interface of the fronthaul multiplexer based on routing information of each cell on the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes downlink user plane data of each cell to a corresponding radio access network radio frequency unit based on the southbound interface, respectively selects uplink user plane data of each cell based on the southbound interface to combine, and sends the combined uplink user plane data to a baseband unit;
wherein the cell user plane information comprises: cell number, unique antenna carrier identification of each cell and preselected route calculation mode,
the calculating the routing information of each cell on the fronthaul multiplexer based on all interface information, topology information and the cell user plane information of the fronthaul multiplexer includes:
the calculation module is specifically configured to calculate, based on all interface information, topology information, and the cell user plane information of the fronthaul multiplexer, route information of each cell on the fronthaul multiplexer according to a preselected route calculation mode, where the route calculation mode includes: the mode of the same cell, the mode of bisection according to the number of cells, the mode of separation according to the forward multiplexer and the port group routing mode or any plurality of modes.
5. The apparatus of claim 4, further comprising:
the setting module is set to preset a plurality of route calculation modes; and the number of the first and second groups,
a selection module configured to pre-select a route calculation mode from the plurality of route calculation modes;
the second obtaining module includes:
a first obtaining unit, configured to obtain initial cell user plane information of each radio access network radio frequency unit, where the initial cell user plane information includes cell number and unique identifier of antenna carrier of each cell; and (c) a second step of,
and the second acquisition unit is set to carry a preselected route calculation mode in the initial cell user plane information to acquire the cell user plane information of each radio access network radio frequency unit.
6. The apparatus of claim 5, wherein the first routing module comprises:
a judging unit configured to judge whether or not a pre-selected route calculation mode is a same cell mode;
and the configuration unit is configured to configure a southbound interface of the fronthaul multiplexer based on the routing information of the cell on the fronthaul multiplexer when the judgment unit judges that the cell mode is the same, copy downlink user plane data of the cell to the fronthaul multiplexer based on all interface information and topology information of the fronthaul multiplexer, so that the fronthaul multiplexer respectively routes the downlink user plane data of the cell to all radio access network radio frequency units, combine uplink user plane data of the cell, and send the combined uplink user plane data to the baseband unit.
7. A terminal device comprising a memory and a processor, the memory having stored therein a computer program, the processor, when executing the computer program stored by the memory, performing the method of routing under a shared cell according to any one of claims 1 to 3.
8. A computer-readable storage medium, having a computer program stored thereon, wherein the computer program, when executed by a processor, causes the processor to perform a method of routing under a shared cell according to any of claims 1 to 3.
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| WO2020217989A1 (en) * | 2019-04-22 | 2020-10-29 | 日本電気株式会社 | Communication device, controller, system, and method |
| WO2021003278A1 (en) * | 2019-07-02 | 2021-01-07 | Commscope Technologies Llc | Fronthaul interface for use with a cloud radio access network |
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| WO2020217989A1 (en) * | 2019-04-22 | 2020-10-29 | 日本電気株式会社 | Communication device, controller, system, and method |
| WO2021003278A1 (en) * | 2019-07-02 | 2021-01-07 | Commscope Technologies Llc | Fronthaul interface for use with a cloud radio access network |
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