CN108880778B - Method, device and computer equipment for common work of TDD and FDD - Google Patents
Method, device and computer equipment for common work of TDD and FDD Download PDFInfo
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- CN108880778B CN108880778B CN201710344594.1A CN201710344594A CN108880778B CN 108880778 B CN108880778 B CN 108880778B CN 201710344594 A CN201710344594 A CN 201710344594A CN 108880778 B CN108880778 B CN 108880778B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Abstract
According to the method, the device and the computer equipment for the joint work of the TDD and the FDD, provided by the invention, an interface board which needs to support the joint work of the TDD and the FDD and the respective protocol types of the corresponding micro remote radio frequency units are selected according to an application scene; when the TDD and the FDD share the master control, the request compatible with the TDD and the FDD to work together is established through a control channel; the micro remote radio frequency unit uniformly regulates and controls the respective in-phase orthogonal resource configuration of TDD and FDD; and processing the received TDD and FDD messages by a TDDFDD dual-mode state machine. In the scene that TDD and FDD share the micro remote radio frequency unit, the invention realizes the common work of TDD and FDD by integrating the corresponding respective working flows in TDD and FDD in the corresponding unified flow of the micro remote radio frequency unit, and saves hardware resources and cost.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, and a computer device for TDD and FDD co-operation.
Background
The traditional mobile communication technology has TDD (Time Division duplex) and FDD (Frequency Division duplex) Frequency bands, the PRRU (Pico Remote Radio Unit) under the QCE LL networking (Multi-Frequency and Multi-mode 4G indoor active distribution system) scene is an integrated small-sized full-Frequency-band support product, the QCE LL active room subsystem mainly comprises a baseband Unit (BBU, BaseBandUnit), a Remote convergence Unit (Pico RRU bridge, a bridging Unit of the baseband Unit and the Pico Remote Radio Unit, abbreviated as PB), the micro Remote Radio Unit (PRRU, Pico Remote Radio Unit) and a Multi-system Access Unit (MAU, Multi-Access Unit), and the PB, MAU, the PRRU and the full-Frequency-band system under QCE LL 2.0.0 need to work together.
However, in the conventional technology, the TDD site works with BBU, MAU, PB, and PRRU, and the FDD site works with BBU, MAU, PB, and PRRU of FDD, so that in the conventional technology, TDD and FDD work separately with their respective hardware, which is high in cost.
Disclosure of Invention
Therefore, it is necessary to provide a method and an apparatus for TDD and FDD cooperating, aiming at achieving the purpose that the micro remote radio unit is compatible with TDD and FDD cooperating, so as to solve the problem that in the conventional technology, the cost is high because TDD and FDD respectively use their respective hardware to operate independently.
The technical scheme adopted by the embodiment of the invention is as follows:
a method of TDD and FDD co-operation, the method comprising:
uniformly regulating and controlling the received in-phase orthogonal resource configuration of the TDD and the FDD;
and jointly processing the received TDD and FDD messages by a TDDFDD dual-mode state machine.
An apparatus for TDD and FDD co-operation, the apparatus comprising:
the regulation and control module is used for uniformly regulating and controlling the received in-phase orthogonal resource configuration of the TDD and the FDD;
and the common processing module is used for carrying out common processing on the received TDD and FDD messages through the TDDFDD dual-mode state machine.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method are implemented when the computer program is executed by the processor.
Has the advantages that: the invention provides a method, a device and computer equipment for common working of TDD and FDD, which uniformly regulate and control the received in-phase and quadrature resource configuration of the TDD and the FDD; and jointly processing the received TDD and FDD messages by a TDDFDD dual-mode state machine. According to the application scene, the interface board which needs to support the common work of TDD and FDD and the respective protocol types of the corresponding micro remote radio frequency units are selected; when the TDD and the FDD share the master control, the request compatible with the TDD and the FDD to work together is established through a control channel; the micro remote radio frequency unit uniformly regulates and controls the respective in-phase orthogonal resource configuration of TDD and FDD; and jointly processing the received TDD and FDD messages by a TDDFDD dual-mode state machine. In the scene that the TDD and the FDD share the micro remote radio frequency unit, the invention realizes the common operation and work of the TDD and the FDD by integrating the corresponding respective working processes in the TDD and the FDD in the corresponding unified process of the micro remote radio frequency unit, and saves hardware resources and cost.
Drawings
Fig. 1 is a flowchart of an embodiment of a method for TDD and FDD co-operation according to the present invention;
FIG. 2 is an IQ resource management diagram of a micro remote radio unit in an embodiment of a method for TDD and FDD to work together;
FIG. 3 is a flow chart of a TDD single mode state machine in the prior art;
FIG. 4 is a flow chart of a FDD single mode state machine in the prior art;
FIG. 5 is a flow chart of an embodiment of the present invention in which a TDD and FDD state machine are integrated into a dual mode state machine;
fig. 6 is a block diagram of an embodiment of a device for TDD and FDD operation according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, in an embodiment, a method for TDD and FDD interworking is provided, where the method is used in a wireless communication device terminal or a server that requires TDD and FDD interworking, and the method includes:
and S1, uniformly regulating and controlling the received in-phase and quadrature resource configuration of the TDD and the FDD respectively.
Specifically, the micro Remote Radio Unit performs unified regulation and control on respective In-phase and quadrature resource configurations of the TDD and FDD, that is, PRRU IQ (PRRU is a Pico Remote Radio Unit, and IQ is In-phase quadrature) resource allocation performs IQ resource regulation and management by using TCM and CMP, so as to ensure that the IQ resource configurations of the TDD and FDD of the PRRU do not conflict, where TCM is TDD Configuration management, and CMP is Configuration management process.
Further, when the PRRU needs to compatibly Support the common operation of TDD and FDD, that is, when the TDD and FDD share the PRRU, the PRRU IQ resource adopts a unified calculation and configuration scheme for the TDD and FDD, please refer to fig. 2, for example, an IQ configuration part on an optical switch FS Board (i.e., Frame Switching) is newly added with an IQCOMMON _ OP process to implement, IQ configurations of the CMP of the FDD and the TCM of the TDD on a master Control (i.e., CC, Chief Control) are both sent to the IQCOMMON _ OP process, and the configuration of the PRRU IQ resource is uniformly adjusted, controlled and managed by the IQCOMMON _ OP process, so as to avoid a PRRU IQ resource configuration conflict, but two configuration interfaces of the BSP (i.e., Board level Package) reserved and the FDD receive the IQ configurations of the TDD and the TDD, and the IQ configurations of the TDD are respectively sent to the unified regulation process to perform unified calculation and configuration of the IQ resources after the IQ configurations are received. Wherein, the optical switching FS board is an optical network switching single board, and when the configuration of the baseband board exceeds 2 blocks, the single board needs to be added.
And S2, jointly processing the received TDD and FDD messages through the TDDFDD dual-mode state machine.
In one embodiment, the step S2 includes:
in each working state of the TDDFDD dual-mode state machine, when a TDD message is received, the working state of the TDDFDD dual-mode state machine is not switched, and the TDD message is directly processed through the TDDFDD dual-mode state machine;
and when the FDD message is received, processing the FDD message by switching the state of the TDDFDD dual-mode state machine according to the flow of the FDD state machine.
Referring to fig. 5, each working state of the TDDFDD dual-mode state machine refers to each working state of the TDDFDD dual-mode state machine, such as the parameter configuration state, the TDDFDD gain report, the TDDFDD power-up completion, or the TDDFDD working state in fig. 5, and when receiving a TDD message in any one of the working states, the current working state of the TDDFDD dual-mode state machine is not switched, and the TDDFDD dual-mode state machine directly processes the TDD message.
Specifically, the PRRU integrates TDD and FDD state machine flows, and proposes a state machine flow supporting TDD single mode, FDD single mode, and TDD and FDD dual modes. Specifically, the respective work flows of the state machines in the conventional technology and in the technical scheme of the present invention are as follows:
in the parameter configuration state, in the conventional technology, referring to fig. 3, a TDD single mode process is switched to a TDD operating mode after receiving TDD cell configuration and TDD antenna configuration, so as to perform TDD message processing;
in the parameter configuration state, in the conventional technology, please refer to fig. 4 for an FDD single-mode flow, when receiving an FDD IQ configuration message, the FDD single-mode switches to an FDD gain reporting state, when receiving a gain reporting response message, switches to a power-on completion state, and when receiving an FDD power-on completion response, switches to an FDD working state, and processes the FDD message;
in the parameter configuration state, in the technical solution of the present invention, referring to fig. 5, the TDD and FDD dual-mode flow process includes the following steps:
switching to a gain reporting state only when receiving the FDDIQ configuration message;
when the gain reporting state receives and only receives the FDD gain reporting response message, the state machine is switched to a power-on completion state;
when the power-on completion state receives and only receives the power-on completion response message of the FDD, the state machine is switched to the TDD and FDD working states to process the FDD message;
TDD messages and FDD messages can be processed in both TDD and FDD working states, and when the TDD messages are received in each state, the state machine is not switched, but the TDD messages are processed.
In one embodiment, before step S1, the method further includes:
and S00, selecting interface boards which need to support the joint work of TDD and FDD and the respective protocol types of the corresponding micro remote radio frequency units according to the application scene.
Specifically, according to an application scenario, a physical layer protocol type of an interface board that needs to support the joint work of TDD and FDD and an application layer protocol type of a corresponding micro remote radio unit are selected.
When the TDD and the FDD work independently, the TDD and the FDD work independently by using respective hardware, so that the protocol types of an interface board and a micro remote radio unit do not need to be selected. In the invention, in order to realize the joint work of TDD and FDD, a proper physical layer protocol type of an Interface board supporting the joint work of TDD and FDD and an application layer protocol type of PRRU are required to be selected, namely, a proper protocol type is selected for TDD and FDD aiming at a specific application scene, for example, a client of China Unicom and China telecom selects the physical layer protocol type of the Interface board and the application layer protocol type of the PRRU to be a CPRI protocol (common public Radio Interface), and then the original scheme of FDD is adopted in a bottom layer protocol and a communication layer by the scheme of the common PRRU; for example, if a customer moving in china selects to use the physical layer protocol type of the Interface board and the application layer protocol type of the PRRU is an IR protocol (i.e., Interface between BBU and RRU, BBU and RRU Interface), the scheme sharing the PRRU uses the original TDD scheme in the bottom layer protocol and the communication layer.
In one embodiment, before step S1, the method further includes:
and S01, when the TDD and the FDD share the master control, establishing a request compatible with the common operation of the TDD and the FDD through a control channel.
In one embodiment, step S01 includes:
when TDD and FDD share the main control, the micro remote radio frequency unit is not responded after the FDD process is finished, and then the micro remote radio frequency unit is responded after the TDD configuration management response, so that the control channel establishment request is compatible with the TDD and FDD processes to operate together.
Specifically, under a scenario that a TDD and an FDD share a master control, a channel establishment request is compatible with the common operation of the TDD and the FDD, a channel establishment request message is controlled by a micro Remote radio unit management (namely, a Pico Remote management manager (PRM) and simultaneously supports the flow operation of the TDD and the FDD, and the PRM does not respond to the PRRU after the FDD flow is processed, does not need to set a timer, and responds to the PRRU after the TCM responds.
In one embodiment, the method for TDD and FDD operation further includes:
and when the TDD and the FDD share the micro remote radio unit, forwarding the detected heartbeat message to the micro remote radio unit management and the TDD configuration management.
That is, when TDD and FDD share a micro remote radio unit, the detected heartbeat message is forwarded to both PRM and TDD configuration management. Specifically, in a scenario where a protocol is selectable, the PRM forwards a detected heartbeat message to both the PRM and the TCM in a scenario where TDD and FDD share a PRRU. The TCM judges whether to update the single board table state according to the protocol type, if the protocol is an IR protocol, the single board table state is updated, if the protocol is a CPRI protocol, the updating is not needed, if the TCM does not receive the heartbeat message, the fault is indicated, and the prompt is carried out in an alarm mode; and the PRM judges the detection action according to the received heartbeat message, judges that a fault occurs if the heartbeat message is not received, thereby restarting and controlling to perform a reset action, otherwise, judges that the PRRU state is normal and does not need to perform a restart operation.
In one embodiment, the method for TDD and FDD operation further includes:
for TDD and FDD, the measurement and compensation of the delay is made according to the protocol type.
The delay refers to the time required for a message or packet to travel from one end of a network to another. The method comprises the steps of sending delay, propagation delay, processing delay and queuing delay, wherein the delay is sending delay, propagation delay, processing delay and queuing delay, and generally, the sending delay and the propagation delay are mainly considered. For the case of large message length, the transmission delay is a main contradiction; when the length of the message is small, propagation delay is a main contradiction.
The measurement and compensation of the time delay are indispensable in any communication system for the smooth communication, and specifically, in the scenario where the protocol is selectable, the measurement and compensation are performed according to the protocol type, the measurement and compensation scheme is performed according to the TDD formula if the IR protocol is used, and the calculation and compensation scheme is performed according to the FDD formula if the CPRI protocol is used.
In one embodiment, the method for TDD and FDD operation further includes:
at least one of the alarm, the dynamic state and the diagnosis of TDD and FDD are integrated into a set of flow.
Namely, at least one of alarm, dynamic state and diagnosis of TDD and FDD are integrated uniformly. Specifically, the unified integration is to integrate the respective alarms of TDD and FDD into one set of alarm flows that simultaneously support inconsistent alarms of TDD and FDD, integrate the respective dynamic correspondences of TDD and FDD into one set of dynamic flows that simultaneously support the dynamics of TDD and FDD, and integrate the respective diagnostic correspondences of TDD and FDD into one set of flows that simultaneously support the diagnosis of TDD and FDD. The following are described separately:
(1) and (5) alarming.
Specifically, for the Alarm, a unified Alarm reporting Process is adopted, that is, the inconsistent Alarm of TDD and FDD is integrated into a set of Process AMP (Alarm Management Process) in the PRM to detect the Alarm. In the conventional technology, the TDD is TCM to detect the alarm, the FDD is AMP to detect the alarm, and in one embodiment of the present invention, all the alarms of the TDD and FDD are integrated into the AMP to detect the alarm.
(2) Dynamics and diagnostics.
The dynamic and diagnostic processes are integrated into a corresponding set at the PRM, and specifically, the essence of each dynamic and diagnostic process is analyzed on the basis of the traditional technology, and a general description is given to support both TDD and FDD dynamic and diagnostic processes. For example, in the dynamic states of TDD and FDD, channel blocking and unblocking of TDD, and power amplifier enabling and disabling of FDD, the essence of these two dynamic states is to perform the operations of turning on and off the power amplifier of each channel.
Referring to fig. 6, in an embodiment, the present invention further provides an apparatus for TDD and FDD working together, the apparatus including:
a regulation module 10, configured to perform unified regulation on respective in-phase and quadrature resource configurations of the received TDD and FDD, by adding an IQCOMMON _ OP process to an IQ configuration part on an optical switching FS board of the micro remote radio frequency unit, specifically according to the method described above;
the common processing module 20 is configured to perform common processing on the received TDD and FDD messages by using a TDDFDD dual-mode state machine, and is implemented by setting a state machine supporting dual modes of TDD and FDD on the micro remote radio unit, which is specifically implemented as described in the foregoing method.
In one embodiment, the apparatus further comprises:
a protocol selection module, configured to select, according to an application scenario, an interface board that needs to support the joint operation of TDD and FDD and a protocol type of a corresponding micro remote radio unit, and implement the selection through a communication layer of the interface board and the micro remote radio unit, specifically according to the method described above;
the control module is used for establishing a request compatible with the common work of TDD and FDD through a control channel when the TDD and FDD share the main control, and the control is realized through the main control of the micro remote radio frequency unit, particularly the method;
a heartbeat message forwarding module, configured to forward the detected heartbeat message to micro remote radio frequency unit management and TDD configuration management when TDD and FDD share the micro remote radio frequency unit, and implement the heartbeat message by using a master control of the micro remote radio frequency unit, specifically according to the method described above;
and the process integration module is used for integrating at least one of the alarm, the dynamic state and the diagnosis of the TDD and the FDD into a set of process, and the process integration module is realized by the master control of the micro remote radio frequency unit, and is specifically the method.
In one embodiment, the present invention also provides one or more non-transitory computer-readable storage media storing computer-executable instructions that, when executed by one or more processors, cause the one or more processors to perform the steps of the method.
In one embodiment, the present invention also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the method when executing the computer program.
In summary, according to the method, the apparatus, and the computer device for TDD and FDD co-working provided by the present invention, according to an application scenario, an interface board that needs to support TDD and FDD co-working and a corresponding protocol type of each micro remote radio unit are selected; when the TDD and the FDD share the master control, the request compatible with the TDD and the FDD to work together is established through a control channel; the micro remote radio frequency unit uniformly regulates and controls the respective in-phase orthogonal resource configuration of TDD and FDD; and jointly processing the received TDD and FDD messages by a TDDFDD dual-mode state machine. In the scene that TDD and FDD share the micro remote radio frequency unit, the invention realizes the common operation work of TDD and FDD by integrating the corresponding respective working flows in TDD and FDD into a corresponding unified flow, and saves hardware resources and cost.
It will be understood by those skilled in the art that all or part of the processes in the methods of the embodiments described above may be implemented by hardware related to instructions of a computer program, which may be stored in a computer readable storage medium, for example, in the storage medium of a computer system, and executed by at least one processor in the computer system, so as to implement the processes of the embodiments including the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A method for TDD and FDD co-operation, comprising:
uniformly regulating and controlling the received in-phase orthogonal resource configuration of the TDD and the FDD;
in each working state of the TDDFDD dual-mode state machine, when a TDD message is received, the working state of the TDDFDD dual-mode state machine is not switched, and the TDD message is directly processed through the TDDFDD dual-mode state machine;
and when the FDD message is received, processing the FDD message by switching the state of the TDDFDD dual-mode state machine according to the flow of the FDD state machine.
2. The method of claim 1, wherein the step of uniformly adjusting the in-phase and quadrature resource configuration of each of the received TDD and FDD further comprises:
according to the application scene, the protocol type of an interface board which needs to support the joint work of TDD and FDD and the protocol type of a micro remote radio frequency unit are selected.
3. The method of claim 2, wherein the step of uniformly adjusting the in-phase and quadrature resource configuration of each of the received TDD and FDD further comprises:
when TDD and FDD share the master control, the compatible TDD and FDD flows are operated together through the establishment request of the control channel.
4. The method of claim 3, wherein the step of establishing a control channel to request compatible TDD and FDD flows to operate together when TDD and FDD share a master control comprises:
when TDD and FDD share the main control, the micro remote radio frequency unit is not responded after the FDD process is finished, and then the micro remote radio frequency unit is responded after the TDD configuration management response, so that the control channel establishment request is compatible with the TDD and FDD processes to operate together.
5. The method of claim 1, further comprising:
and when the TDD and the FDD share the micro remote radio unit, forwarding the detected heartbeat message to the micro remote radio unit management and the TDD configuration management.
6. The method of claim 1, further comprising:
at least one of the alarm, the dynamic state and the diagnosis of TDD and FDD are integrated into a set of flow.
7. An apparatus for TDD and FDD co-operation, the apparatus comprising:
the regulation and control module is used for uniformly regulating and controlling the received in-phase orthogonal resource configuration of the TDD and the FDD;
the common processing module is used for not switching the working state of the TDDFDD dual-mode state machine when receiving a TDD message in each working state of the TDDFDD dual-mode state machine, and directly processing the TDD message through the TDDFDD dual-mode state machine; and when the FDD message is received, processing the FDD message by switching the state of the TDDFDD dual-mode state machine according to the flow of the FDD state machine.
8. The apparatus of claim 7, further comprising:
the protocol selection module is used for selecting the protocol type of an interface board which needs to support the joint work of TDD and FDD and the protocol type of the micro remote radio frequency unit according to an application scene;
the control module is used for establishing a request compatible with the common operation of the TDD and the FDD through a control channel when the TDD and the FDD share the main control;
a heartbeat message forwarding module, configured to forward the detected heartbeat message to the micro remote radio unit management and TDD configuration management when the TDD and FDD share the micro remote radio unit;
and the flow integration module is used for integrating at least one of the alarm, the dynamic state and the diagnosis of the TDD and the FDD into a set of flow.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1-6 are implemented by the processor when executing the computer program.
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