CN110557771B - Cell establishing method and device - Google Patents
Cell establishing method and device Download PDFInfo
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- CN110557771B CN110557771B CN201810552455.2A CN201810552455A CN110557771B CN 110557771 B CN110557771 B CN 110557771B CN 201810552455 A CN201810552455 A CN 201810552455A CN 110557771 B CN110557771 B CN 110557771B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
- H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/06—Testing, supervising or monitoring using simulated traffic
Abstract
The application discloses a cell establishing method and a cell establishing device, which are used for realizing relevant debugging and testing of a cell establishing logic flow when RRU physical resources cannot meet testing requirements, so that the testing cost is saved, and the working efficiency of development and testing is improved. The cell establishment method provided by the application comprises the following steps: determining that cell establishment is required; and executing a cell establishing process through a virtual radio frequency unit RRU established in the base band unit BBU.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a cell establishment method and apparatus.
Background
In the conventional cell establishment process, the baseband unit needs to complete various processes such as configuration, capability reporting and the like through signaling interaction with the radio frequency unit, and the processes such as physical cell establishment, logical cell establishment, antenna calibration and the like are completed through the whole participation of an Active Antenna Unit (AAU). In this case, if the cell needs to be set up with a logic flow to perform debugging, radio frequency resources are inevitably required to be ready, and all development and debugging processes of the baseband unit and the cell are constrained by the development progress of the radio frequency unit. Since radio frequency technology is mature before 5G, and Long Term Evolution (LTE) series radio frequency resources are abundant, radio frequency hardware resources do not become bottlenecks. Under the condition of surplus radio frequency resources, the traditional application can meet the development and debugging requirements. A typical test network element topology for a conventional cell establishment procedure is shown in figure 1.
With the continuous development of wireless mobile communication technology, 64-channel high-performance radio frequency units are developed in 5G, hardware of radio frequency resources is a new architecture design, if debugging and testing in a cell establishing process are to be completed, the requirement on the radio frequency units is very strong, and under the condition of radio frequency resource shortage, the development efficiency is severely restricted by the strong coupling of baseband resources and the radio frequency resources. In addition, for a logic flow test scenario requiring a large number of RRUs to access, the test environment construction cost is high, and test conditions are not provided.
Disclosure of Invention
The embodiment of the application provides a cell establishment method and a cell establishment device, which are used for realizing relevant debugging and testing of a cell establishment logic flow when RRU physical resources cannot meet testing requirements, so that the testing cost is saved, and the working efficiency of development and testing is improved.
The cell establishment method provided by the embodiment of the application comprises the following steps:
determining that cell establishment is required;
and executing a cell establishing process through a virtual radio frequency unit RRU established in the base band unit BBU.
By the method, when the cell is determined to be required to be established, the cell establishment process is executed through the virtual radio frequency unit RRU established in the base band unit BBU, so that the relevant debugging and testing of the cell establishment logic process can be realized through the virtual RRU, the problem that the relevant test of the cell establishment cannot be carried out due to the fact that the physical resources of the RRU cannot meet the test requirement is avoided, the test cost is saved, and the working efficiency of development and testing is improved.
Optionally, the cell establishment procedure at least includes one of the following procedures:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
Optionally, the interface protocol Ir access flow for simulating the RRU and the BBU in the physical cell establishment process specifically includes:
initializing basic information of the virtual RRU, wherein the basic information comprises one or a combination of the following information: radio frequency unit topology, radio frequency unit channels, radio frequency bands, antenna mounting topology and antenna array topology.
Optionally, the initializing the basic information of the virtual RRU specifically includes the virtual RRU executing the following processes:
simulating a broadcast access request;
simulating a channel establishment request;
simulating a channel to establish a configuration response;
and (4) reporting a simulation initialization calibration result.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the process of establishing the logical cell specifically includes:
sending a cell establishment request message to the virtual RRU, wherein the cell establishment request message carries a cell configuration parameter message required by the virtual RRU;
and receiving a cell establishment response message replied by the virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the logical cell establishment process further includes one or a combination of the following steps:
sending a cell configuration request message to the virtual RRU;
sending a cell reconfiguration request message to the virtual RRU;
and sending a cell configuration request message to the designated virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the antenna calibration process specifically includes:
sending a message of starting AC calibration request to the virtual RRU;
receiving a simulation calibration result fed back by the virtual RRU;
sending a calibration command word to the virtual RRU;
receiving frequency domain antenna data fed back by the virtual RRU, calculating an antenna calibration factor based on the frequency domain antenna data, and associating a degradation state according to the antenna calibration factor;
sending an AC calibration ending request to the virtual RRU;
and receiving an ending AC calibration response message fed back by the virtual RRU.
Correspondingly, an apparatus for establishing a cell provided in an embodiment of the present application includes:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing according to the obtained program:
determining that cell establishment is required;
and executing a cell establishing process through a virtual radio frequency unit RRU established in the base band unit BBU.
Optionally, the cell establishment procedure at least includes one of the following procedures:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
Optionally, the interface protocol Ir access flow for simulating the RRU and the BBU in the physical cell establishment process specifically includes:
initializing basic information of the virtual RRU, wherein the basic information comprises one or a combination of the following information: radio frequency unit topology, radio frequency unit channels, radio frequency bands, antenna mounting topology and antenna array topology.
Optionally, the initializing the basic information of the virtual RRU specifically includes the virtual RRU executing the following processes:
simulating a broadcast access request;
simulating a channel establishment request;
simulating a channel to establish a configuration response;
and (4) reporting a simulation initialization calibration result.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the process of establishing the logical cell specifically includes:
sending a cell establishment request message to the virtual RRU, wherein the cell establishment request message carries a cell configuration parameter message required by the virtual RRU;
and receiving a cell establishment response message replied by the virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the logical cell establishment process further includes one or a combination of the following steps:
sending a cell configuration request message to the virtual RRU;
sending a cell reconfiguration request message to the virtual RRU;
and sending a cell configuration request message to the designated virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the antenna calibration process specifically includes:
sending a message of starting AC calibration request to the virtual RRU;
receiving a simulation calibration result fed back by the virtual RRU;
sending a calibration command word to the virtual RRU;
receiving frequency domain antenna data fed back by the virtual RRU, calculating an antenna calibration factor based on the frequency domain antenna data, and associating a degradation state according to the antenna calibration factor;
sending an AC calibration ending request to the virtual RRU;
and receiving an ending AC calibration response message fed back by the virtual RRU.
Another cell establishment apparatus provided in an embodiment of the present application includes:
a first unit, configured to determine that cell establishment is required;
and the second unit is used for executing the cell establishment process through a virtual radio frequency unit RRU established in the base band unit BBU.
Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used for storing program instructions, and the processor is used for calling the program instructions stored in the memory and executing any one of the above methods according to the obtained program.
Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a network element topology in a cell establishment process in the prior art;
fig. 2 is a schematic diagram of a network element topology in a virtual RRU cell establishment process according to an embodiment of the present application;
fig. 3 is a schematic diagram of an interaction flow between a baseband unit and a virtual RRU according to an embodiment of the present application;
fig. 4 is a schematic view of a simulated Ir access flow provided in an embodiment of the present application;
fig. 5 is a schematic signaling flow diagram for establishing a logical cell according to an embodiment of the present application;
fig. 6 is a signaling flow diagram of antenna calibration according to an embodiment of the present application;
fig. 7 is a flowchart illustrating a method for establishing a cell according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an apparatus for cell establishment according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of an apparatus for establishing another cell according to an embodiment of the present disclosure.
Detailed Description
The embodiment of the application provides a cell establishment method and a cell establishment device, which are used for realizing relevant debugging and testing of a cell establishment logic flow when RRU physical resources cannot meet testing requirements, so that the testing cost is saved, and the working efficiency of development and testing is improved.
The precondition that the base station is in service (the base station has the condition of providing service) is the successful establishment of the logic cell, and the complete function of the logic cell is the basic condition of the service function of the whole base station system and is generally at the head of the essential function of the base station. Conventionally, this part of functions can be completed only when both Baseband resources (functions are concentrated on an indoor Baseband processing unit (BBU)) and radio frequency resources (functions are concentrated on an RRU) are ready.
The method and the device divide the debugging and testing of the physical cell into a logic plane (flow correlation) layer and a service plane (physical channel correlation) layer, and the debugging and testing aiming at the logic do not depend on specific hardware functions. Therefore, in order to better isolate the dependence of the BBU on the RRU in the debugging stage and focus the debugging on the flow inside the BBU, the technical scheme provided by the embodiment of the application realizes that the cell establishment process does not depend on the physical existence of a real radio frequency unit, completes the cell establishment flow through the cooperation of the virtual RRU inside the BBU, ensures the normal operation of logic level debugging and testing, and can greatly improve the verification efficiency of debugging and testing work. In addition, for a logic flow test scene needing a large number of radio frequency units to be accessed, hardware cost can be greatly saved, time consumed by environment construction is greatly saved, and therefore the overall development efficiency is greatly improved.
In the technical solution provided in the embodiment of the present application, a typical test network element topology in a cell establishment process is shown in fig. 2, and the embodiment of the present application proposes a concept of virtual RRU. The virtual RRU is a logical function that does not depend on physical entities. The method mainly completes the functions of simulating physical RRU and completing the establishment process of a logic cell by matching with a Base Band Unit (BBU), and the main interactive process between the BBU and the virtual RRU is shown in figure 3 and mainly comprises three parts:
firstly, an Interface protocol (Ir) access flow of a simulation RRU and a BBU in a physical cell establishing process;
designing a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and thirdly, designing a signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
The Ir access flow is an RRU access flow, message interaction between the RRU and the BBU is completed, and the RRU reaches an access completion state.
Specific examples of the above three parts are given below, respectively.
Referring to fig. 4, the simulated Ir access procedure includes:
when a physical cell is established, an Ir access flow is simulated and realized, and basic information of the virtual RRU is initialized, wherein the basic information comprises a radio frequency unit topology, a radio frequency unit channel, a radio frequency band, an antenna installation topology and an antenna array topology. Mainly comprises the following steps:
step one, simulating a broadcast access request. That is, the virtual RRU initiates a broadcast access request to the BBU, which carries RRU ID and Media Access Control (MAC) address information.
And step two, simulating a channel establishment request. Namely, after the virtual RRU receives the broadcast access response replied by the BBU, the virtual RRU simulates to initiate a channel establishment request to the BBU. The channel establishment request message comprises an RRU identification, a channel establishment reason, the RRU capacity, the RRU stage number and software and hardware version information IE; that is, the channel establishment request sent by the RRU to the BBU carries the relevant information of itself.
And step three, simulating a channel to establish configuration response (transparent transmission). That is, after receiving the channel establishment configuration response replied by the BBU, the virtual RRU configures channel information according to parameters such as a File Transfer Protocol (FTP) address, an Ir port operating mode configuration information unit (IE), and the like, and after successful configuration, simulates a reply channel establishment configuration response to the BBU.
And step four, reporting the simulation initialization calibration result (success or failure). That is, the virtual RRU sends an initialization calibration result (i.e., a result of initializing basic information of the virtual RRU) to the BBU.
Referring to fig. 5, a signaling flow between the baseband unit and the virtual RRU in the process of establishing the logical cell specifically includes the following steps:
when a logic cell is established, an interaction main flow between a baseband unit and a virtual RRU comprises two parts:
a. and the BBU sends a cell establishment request message to the virtual RRU. The message carries a cell configuration parameter message required by the RRU, and the cell configuration parameter message comprises: the method comprises the steps of identifying a local cell ID, a cell configuration identifier, an antenna group number, a frequency point number, a cell system, cell power and frequency point related information.
b. And the virtual RRU replies a cell establishment response message to the BBU. After receiving a cell establishment request message of a baseband unit, the virtual RRU transmits RRU information to a BBU side through a cell establishment response message, wherein the cell establishment response message comprises: RRU message header, cell configuration IE result, frequency point configuration response IE number and frequency point configuration response result.
In several processes related to the cell (the following c, d, and e correspond to a cell configuration request, a cell reconfiguration request, and a cell configuration request for designating an RRU), the RRU also participates. A cell main control module in the BBU notifies the RRU of a relevant message (the messages described in c, d, and e below), the virtual RRU replies information such as frequency point configuration to the cell through a response message, that is, to the BBU, the BBU receives the response message of the RRU, and the cell determines whether the cell has a relevant condition according to the response message, that is, the BBU determines whether the RRU has a cell establishment condition according to the result of the response message (the RRU side is not abnormal, is ready, and can establish the cell). The method mainly comprises the following steps:
c. when a cell is activated, a cell main control module sends a cell configuration request message (a message in a general flow) to an RRU;
d. the cell main control module sends a cell reconfiguration request message to the RRU;
e. the cell main control module sends a cell configuration request message to a designated RRU (unlike the message in c, the message in e can be understood as a customized message), that is, in a cell merging scenario, one cell may correspond to multiple RRUs, and may select to send a configuration request to one of the RRUs. For example, the following several flows relate to this message:
when a cell is established, processing flow when a response message replied by the RRU is an error (error);
when a cell is established, no overtime processing flow responding to the RRU is received;
the RRU adding message received by the cell main control module is a processing flow of error;
a cell master control module receives a processing flow of an RRU deletion message;
and adding an overtime processing flow to the RRU received by the cell main control module.
Referring to fig. 6, the signaling flow between the baseband unit and the virtual RRU in the antenna calibration process is as follows:
in the antenna calibration process, the virtual RRU mainly completes the simulation of signaling such as calibration result feedback:
first, Antenna Calibration (AC) triggering: the BBU inquires whether the RRU is ready for calibration or not, namely sends an AC calibration starting request message to the virtual RRU, wherein the message carries cell configuration parameter messages required by the RRU and comprises a local cell ID, an antenna calibration type, IQ data downlink channel selection during uplink calibration, IQ data uplink channel selection during downlink calibration, calibration sequence length and the initial position of the calibration sequence in a special subframe;
secondly, reporting a simulation calibration result: and the virtual RRU constructs an antenna calibration result, and reports the antenna calibration result to the baseband unit by sending a starting AC calibration response.
Thirdly, sending a calibration command word: as the RRU is a 64-channel high-performance radio frequency unit, the BBU needs to send a calibration command word to the RRU 8 times (8 times, 8 × 8 is 64 times with 8 antennas as a group); the calibration command word carries information of a corresponding antenna, and whether the calibration command word sends a calibration sequence is judged according to the state of the corresponding antenna.
And fourthly, frequency domain antenna data: after receiving the calibration command word, the RRU determines which antenna is transmitting the calibration sequence, and after the calibration sequence is looped back and processed accordingly (data processing is performed on the calibration sequence), replies frequency domain antenna data to the baseband unit for 8 times. Converting frequency domain antenna data of 64 antennas (only can transmit data of 8 antennas each time, so that the data is transmitted in 8 times, 8 × 8 is 64) to a time domain by the BBU side, calculating parameters such as signal to noise ratio (snr), peak position of the antenna, power and the like, thereby obtaining antenna calibration factors of each of the 64 antennas, judging whether the antenna is normal according to the parameters, and associating a degradation state according to a calibration result; the antenna states are divided into normal and fault, and when the number of faulty antennas exceeds 2, the cell is considered to be in a degraded state. And calculating the number of the antenna faults by circularly traversing the states of the antennas, and considering the cell degradation when the number of the antenna faults exceeds 2.
Fifthly, AC calibration termination: when the calibration process is finished, the BBU informs the RRU, namely, sends an AC calibration finishing request to the RRU;
sixthly, calibration termination feedback: and the RRU receives the AC calibration finishing request and feeds back an AC calibration finishing response message to the BBU.
In summary, referring to fig. 7, a cell establishment method provided in the embodiment of the present application includes:
s101, determining that cell establishment is needed;
s102, executing a cell establishing process through a virtual radio frequency unit RRU established in the base band unit BBU.
By the method, when the cell is determined to be required to be established, the cell establishment process is executed through the virtual radio frequency unit RRU established in the base band unit BBU, so that the relevant debugging and testing of the cell establishment logic process can be realized through the virtual RRU, the problem that the relevant test of the cell establishment cannot be carried out due to the fact that the physical resources of the RRU cannot meet the test requirement is avoided, the test cost is saved, and the working efficiency of development and testing is improved.
Optionally, the cell establishment procedure at least includes one of the following procedures:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
Optionally, the interface protocol Ir access flow for simulating the RRU and the BBU in the physical cell establishment process specifically includes:
initializing basic information of the virtual RRU, wherein the basic information comprises one or a combination of the following information: radio frequency unit topology, radio frequency unit channels, radio frequency bands, antenna mounting topology and antenna array topology.
Optionally, the initializing the basic information of the virtual RRU specifically includes the virtual RRU executing the following processes:
simulating a broadcast access request;
simulating a channel establishment request;
simulating a channel to establish a configuration response;
and (4) reporting a simulation initialization calibration result.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the process of establishing the logical cell specifically includes:
sending a cell establishment request message to the virtual RRU, wherein the cell establishment request message carries a cell configuration parameter message required by the virtual RRU;
and receiving a cell establishment response message replied by the virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the logical cell establishment process further includes one or a combination of the following steps:
sending a cell configuration request message to the virtual RRU;
sending a cell reconfiguration request message to the virtual RRU;
and sending a cell configuration request message to the designated virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the antenna calibration process specifically includes:
sending a message of starting AC calibration request to the virtual RRU;
receiving a simulation calibration result fed back by the virtual RRU;
sending a calibration command word to the virtual RRU;
receiving frequency domain antenna data fed back by the virtual RRU, calculating an antenna calibration factor based on the frequency domain antenna data, and associating a degradation state according to the antenna calibration factor;
sending an AC calibration ending request to the virtual RRU;
and receiving an ending AC calibration response message fed back by the virtual RRU.
Correspondingly, referring to fig. 8, a cell establishing apparatus provided in an embodiment of the present application includes:
a memory 11 for storing program instructions;
a processor 12 for calling the program instructions stored in the memory and executing, according to the obtained program:
determining that cell establishment is required;
and executing a cell establishing process through a virtual radio frequency unit RRU established in the base band unit BBU.
Optionally, the cell establishment procedure at least includes one of the following procedures:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
Optionally, the interface protocol Ir access flow for simulating the RRU and the BBU in the physical cell establishment process specifically includes:
initializing basic information of the virtual RRU, wherein the basic information comprises one or a combination of the following information: radio frequency unit topology, radio frequency unit channels, radio frequency bands, antenna mounting topology and antenna array topology.
Optionally, the initializing the basic information of the virtual RRU specifically includes the virtual RRU executing the following processes:
simulating a broadcast access request;
simulating a channel establishment request;
simulating a channel to establish a configuration response;
and (4) reporting a simulation initialization calibration result.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the process of establishing the logical cell specifically includes:
sending a cell establishment request message to the virtual RRU, wherein the cell establishment request message carries a cell configuration parameter message required by the virtual RRU;
and receiving a cell establishment response message replied by the virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the logical cell establishment process further includes one or a combination of the following steps:
sending a cell configuration request message to the virtual RRU;
sending a cell reconfiguration request message to the virtual RRU;
and sending a cell configuration request message to the designated virtual RRU.
Optionally, the signaling flow between the baseband unit and the virtual RRU in the antenna calibration process specifically includes:
sending a message of starting AC calibration request to the virtual RRU;
receiving a simulation calibration result fed back by the virtual RRU;
sending a calibration command word to the virtual RRU;
receiving frequency domain antenna data fed back by the virtual RRU, calculating an antenna calibration factor based on the frequency domain antenna data, and associating a degradation state according to the antenna calibration factor;
sending an AC calibration ending request to the virtual RRU;
and receiving an ending AC calibration response message fed back by the virtual RRU.
The processor 12 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).
Referring to fig. 9, another cell establishment apparatus provided in an embodiment of the present application includes:
a first unit 21, configured to determine that cell establishment is required;
a second unit 22, configured to execute a cell establishment procedure through a virtual radio frequency unit RRU established inside the baseband unit BBU.
The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.
The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used for storing a program of any one of the methods provided by the embodiments of the present application.
The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.
Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.
The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.
The method provided by the embodiment of the application can be applied to terminal equipment and also can be applied to network equipment.
The Terminal device may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks through a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.
A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.
The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.
In summary, the embodiment of the present application provides a solution for replacing a physical RRU with a virtual RRU in a cell establishment procedure in a logical layer. When the RRU physical resources can not meet the test requirements, the dependence of the BBU on the physical RRU is decoupled, and the relevant debugging and testing of the cell building logic flow are ensured, so that the test cost is saved, and the working efficiency of development and test is greatly improved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (14)
1. A method for establishing a cell, the method comprising:
determining that cell establishment is required;
executing a cell establishment flow by a virtual radio frequency unit RRU established in the base band unit BBU, wherein the cell establishment flow at least comprises one of the following flows:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
2. The method according to claim 1, wherein the interface protocol Ir access procedure for the analog RRU and BBU in the physical cell establishment process specifically includes:
initializing basic information of the virtual RRU, wherein the basic information comprises one or a combination of the following information: radio frequency unit topology, radio frequency unit channels, radio frequency bands, antenna mounting topology and antenna array topology.
3. The method of claim 2, wherein the initializing the basic information of the virtual RRU specifically comprises the virtual RRU executing the following procedures:
simulating a broadcast access request;
simulating a channel establishment request;
simulating a channel to establish a configuration response;
and (4) reporting a simulation initialization calibration result.
4. The method of claim 1, wherein the signaling procedure between the baseband unit and the virtual RRU in the logical cell establishment process specifically includes:
sending a cell establishment request message to the virtual RRU, wherein the cell establishment request message carries a cell configuration parameter message required by the virtual RRU;
and receiving a cell establishment response message replied by the virtual RRU.
5. The method of claim 4, wherein the signaling procedure between the baseband unit and the virtual RRU in the logical cell establishment procedure further comprises one or a combination of the following steps:
sending a cell configuration request message to the virtual RRU;
sending a cell reconfiguration request message to the virtual RRU;
and sending a cell configuration request message to the designated virtual RRU.
6. The method of claim 1, wherein the signaling flow between the baseband unit and the virtual RRU in the antenna calibration process specifically includes:
sending a message of starting AC calibration request to the virtual RRU;
receiving a simulation calibration result fed back by the virtual RRU;
sending a calibration command word to the virtual RRU;
receiving frequency domain antenna data fed back by the virtual RRU, calculating an antenna calibration factor based on the frequency domain antenna data, and associating a degradation state according to the antenna calibration factor;
sending an AC calibration ending request to the virtual RRU;
and receiving an ending AC calibration response message fed back by the virtual RRU.
7. A cell establishment apparatus, comprising:
a memory for storing program instructions;
a processor for calling the program instructions stored in the memory and executing according to the obtained program:
determining that cell establishment is required;
executing a cell establishing process through a virtual radio frequency unit RRU established in the base band unit BBU, wherein the cell establishing process at least comprises one of the following processes:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
8. The apparatus according to claim 7, wherein the interface protocol Ir access procedure for the analog RRU and BBU in the physical cell establishment process specifically includes:
initializing basic information of the virtual RRU, wherein the basic information comprises one or a combination of the following information: radio frequency unit topology, radio frequency unit channels, radio frequency bands, antenna mounting topology and antenna array topology.
9. The apparatus of claim 8, wherein the initializing the basic information of the virtual RRU specifically includes the virtual RRU executing the following procedures:
simulating a broadcast access request;
simulating a channel establishment request;
simulating a channel to establish a configuration response;
and (4) reporting a simulation initialization calibration result.
10. The apparatus of claim 7, wherein the signaling procedure between the baseband unit and the virtual RRU in the logical cell establishment process specifically includes:
sending a cell establishment request message to the virtual RRU, wherein the cell establishment request message carries a cell configuration parameter message required by the virtual RRU;
and receiving a cell establishment response message replied by the virtual RRU.
11. The apparatus of claim 10, wherein the signaling procedure between the baseband unit and the virtual RRU in the logical cell establishment procedure further comprises one or a combination of the following steps:
sending a cell configuration request message to the virtual RRU;
sending a cell reconfiguration request message to the virtual RRU;
and sending a cell configuration request message to the designated virtual RRU.
12. The apparatus of claim 7, wherein the signaling procedure between the baseband unit and the virtual RRU in the antenna calibration process specifically includes:
sending a message of starting AC calibration request to the virtual RRU;
receiving a simulation calibration result fed back by the virtual RRU;
sending a calibration command word to the virtual RRU;
receiving frequency domain antenna data fed back by the virtual RRU, calculating an antenna calibration factor based on the frequency domain antenna data, and associating a degradation state according to the antenna calibration factor;
sending an AC calibration ending request to the virtual RRU;
and receiving an ending AC calibration response message fed back by the virtual RRU.
13. A cell establishment apparatus, comprising:
a first unit, configured to determine that cell establishment is required;
a second unit, configured to execute a cell establishment procedure by using a virtual radio frequency unit RRU established inside a baseband unit BBU, where the cell establishment procedure at least includes one of the following procedures:
an interface protocol Ir access flow of a simulation RRU and a BBU in the physical cell establishing process;
a signaling flow between a base band unit and a virtual RRU in the process of establishing a logic cell;
and aiming at the signaling flow between the base band unit and the virtual RRU in the antenna calibration process.
14. A computer storage medium having stored thereon computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 6.
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| CN107087303A (en) * | 2016-02-16 | 2017-08-22 | 中兴通讯股份有限公司 | A kind of BTS hardware virtual method, device and base station |
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| US9781556B2 (en) * | 2013-04-05 | 2017-10-03 | Intel Corporation | Network-assisted to direct device discovery switch |
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| CN101312578A (en) * | 2007-05-23 | 2008-11-26 | 大唐移动通信设备有限公司 | Management method and apparatus for local district identification in mobile communication system |
| CN102196473A (en) * | 2010-03-11 | 2011-09-21 | 上海华为技术有限公司 | Method, device and communication system for realizing uplink interference measurement |
| CN107087303A (en) * | 2016-02-16 | 2017-08-22 | 中兴通讯股份有限公司 | A kind of BTS hardware virtual method, device and base station |
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