WO2024082563A1

WO2024082563A1 - Radio frequency front-end control method, apparatus, device, and computer readable storage medium

Info

Publication number: WO2024082563A1
Application number: PCT/CN2023/085991
Authority: WO
Inventors: 兰鹏涛; 高峰
Original assignee: 深圳市中兴微电子技术有限公司
Priority date: 2022-10-20
Filing date: 2023-04-03
Publication date: 2024-04-25
Also published as: CN117955517A

Abstract

Disclosed in the present application are a radio frequency front-end control method, an apparatus, a device, and a computer readable storage medium. The method comprises: receiving a control request sent by a control end of a radio frequency front-end device; according to channel selection information carried by the control request, determining from among radio frequency front-end buses a radio frequency front-end bus selected by the control request; and converting command information carried in the control request into a command frame corresponding to a radio frequency front-end bus protocol; and sending the command frame obtained according to the control request to a radio frequency front-end device docked with the radio frequency front-end bus selected by the control request.

Description

Radio frequency front end control method, device, equipment and computer readable storage medium

Related Applications

This application claims priority to Chinese patent application No. 202211289849.6 filed on October 20, 2022, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the field of wireless communication technology, and in particular to a radio frequency front-end control method, device, equipment and computer-readable storage medium.

Background technique

The RF front-end (RFFE) bus interface is a standard bus interface for the RF front-end. A single RF front-end bus can carry up to 15 slave devices. With the continuous iteration and development of communication technology, the demand for the types and quantity of RF front-end devices (such as antenna switches, antenna tuners, power amplifiers, noise amplifiers, etc.) is also increasing. In addition, there are many types of modems that control the RF front-end, and the types and quantities of RF front-end devices controlled by different modems are also different. There may be cross-control scenarios. If necessary, there are also scenarios where software replaces the modem to control the RF front-end, resulting in a single set of RF front-end bus cannot meet the control requirements of all RF front-end devices, that is, multiple sets of RF front-end buses are required. When each control end (modem and software) uses a set of RF front-end buses to connect to the corresponding RF front-end devices, the utilization rate of the RF front-end bus is low.

Summary of the invention

The main purpose of the present application is to provide a radio frequency front-end control method, device, equipment and computer-readable storage medium, aiming to improve the utilization rate of the radio frequency front-end bus when controlling the radio frequency front-end device.

To achieve the above object, the present application provides a radio frequency front-end control method, the radio frequency front-end control method comprising the following steps:

Receive a control request sent by a control terminal of a radio frequency front-end device;

According to the channel selection information carried in the control request, the selected channel is determined from each set of RF front-end buses. The RF front-end bus selected by the control request;

Converting the command information carried in the control request into a command frame corresponding to the radio frequency front-end bus protocol;

The command frame converted according to the control request is sent to the RF front-end device connected to the RF front-end bus selected by the control request.

To achieve the above object, the present application also provides a radio frequency front-end control device, the radio frequency front-end control device comprising:

A receiving module, used for receiving a control request sent by a control terminal of a radio frequency front-end device;

A determination module, configured to determine the RF front-end bus selected by the control request from each set of RF front-end buses according to the channel selection information carried in the control request;

A conversion module, used to convert the command information carried in the control request into a command frame corresponding to the radio frequency front-end bus protocol;

A sending module, used to send the command frame converted according to the control request to the RF front-end device connected to the RF front-end bus selected by the control request

To achieve the above-mentioned purpose, the present application also provides a radio frequency front-end control device, which includes: a memory, a processor, and a radio frequency front-end control program stored in the memory and executable on the processor, and the radio frequency front-end control program, when executed by the processor, implements the steps of the radio frequency front-end control method as described above.

In addition, to achieve the above-mentioned purpose, the present application also proposes a computer-readable storage medium, on which a RF front-end control program is stored, and when the RF front-end control program is executed by a processor, the steps of the RF front-end control method as described above are implemented.

In the embodiment of the present application, a control request sent by a control end of a radio frequency front-end device is received; the radio frequency front-end bus selected by the control request is determined from each set of radio frequency front-end buses according to the channel selection information carried in the control request; the command information carried in the control request is converted into a command frame corresponding to the radio frequency front-end bus protocol; and the command frame converted according to the control request is sent to the radio frequency front-end device connected to the radio frequency front-end bus selected by the control request. The above scheme provided in the embodiment of the present application enables various control ends to share multiple sets of radio frequency front-end buses, thereby improving the utilization rate of the radio frequency front-end bus when controlling the radio frequency front-end device.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of the hardware operating environment involved in the embodiment of the present application;

FIG2 is a schematic diagram of a flow chart of a first embodiment of a radio frequency front-end control method of the present application;

FIG3 is a schematic diagram of a control terminal conflict signal involved in an embodiment of the present application;

FIG4 is a schematic diagram of a radio frequency front-end system architecture involved in an embodiment of the present application;

FIG5 is a state machine transition diagram involved in an embodiment of the present application;

FIG6 is a schematic diagram of a command frame sending method involved in an embodiment of the present application;

FIG. 7 is a schematic diagram of functional modules of an embodiment of a radio frequency front-end control device of the present application.

The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

Detailed ways

The specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

As shown in FIG. 1 , FIG. 1 is a schematic diagram of the device structure of the hardware operating environment involved in the embodiment of the present application.

The radio frequency front-end control device in the embodiment of the present application may be a smart phone, a personal computer, a server or other device, and is not specifically limited here.

As shown in FIG1 , the RF front-end control device may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 may be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

Those skilled in the art will appreciate that the device structure shown in FIG. 1 does not constitute a limitation on the RF front-end control device, and may include more or fewer components than shown in the figure, or a combination of certain components, or a different arrangement of components.

As shown in FIG1 , the memory 1005 as a computer storage medium may include an operating system, a network communication module, a user interface module, and a radio frequency front-end control program. The operating system is a program that manages and controls the hardware and software resources of the device and supports the operation of the radio frequency front-end control program and other software or programs. In the device shown in FIG1 , the user interface 1003 is mainly used to communicate with the client for data transmission. Communication; the network interface 1004 is mainly used to establish a communication connection with the server; and the processor 1001 can be used to call the RF front-end control program stored in the memory 1005 and execute the RF front-end control method in each embodiment.

Based on the above structure, various embodiments of the RF front-end control method are proposed.

Refer to Figure 2, which is a flow chart of the first embodiment of the RF front-end control method of the present application. The embodiment of the present application provides an embodiment of the RF front-end control method. It should be noted that although the logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different from that here. For the convenience of description below, each embodiment is explained with the RF front-end control system as the execution subject. In one feasible implementation, the RF front-end control system can be a set of circuit systems, including circuit modules that implement various functions, or in one feasible implementation, the RF front-end control system can also be a set of software systems, including software modules that implement various functions. In this embodiment, the RF front-end control method includes:

Step S10, receiving a control request sent by a control terminal of the radio frequency front-end device;

In a specific implementation, the RF front-end device may include but is not limited to one or more of an antenna switch, an antenna tuner, a power amplifier, and a noise amplifier. The control end of the RF front-end device may include but is not limited to one or more of various modems and software control ends. Among them, the modem may include but is not limited to one or more of NR modem, LTE modem, LTEA modem, WD modem, TD modem, GSM modem, and V2X modem. The software control end may be, for example, ARM (RISC processor developed by ARM). When the control end needs to send a control command to the RF front-end device, it sends a control request to the RF front-end control system, which is forwarded by the RF front-end control system.

The control end may carry channel selection information in the control request, and the channel selection information is used to select one of the RF front-end buses (RFFE, RF Front-End). For example, in a feasible implementation, each set of RF front-end buses may be assigned a unique ID in advance, and the channel selection information may be the ID of the RF front-end bus to be selected. It should be noted that in a specific implementation, the number of RF front-end buses may be set according to the requirements of a specific application scenario.

In a specific implementation, after arranging each set of RF front-end buses, it is possible to set which set of RF front-end buses to be used between each control terminal and the RF front-end device to be controlled according to the needs of the specific application scenario. When sending a control request, the control terminal can carry the corresponding channel selection information in the control request according to the preset mapping relationship and the RF front-end device to be controlled currently; the same control terminal can use different RF front-end buses for different RF front-end devices, and different control terminals can also The same set of RF front-end buses can be reused and can be flexibly set according to needs.

The control end may carry command information in the control request, and the command information is used to control the RF front-end device to be controlled, that is, when the RF front-end device receives the command information, it can respond to the command information to perform corresponding operations, such as register reading, register writing, etc. It can be understood that what information the command information specifically includes is not limited in this embodiment.

Step S20, determining the RF front-end bus selected by the control request from each set of RF front-end buses according to the channel selection information carried in the control request;

The RF front-end control system can extract channel selection information from the control request, and determine the RF front-end bus selected by the control request from each set of RF front-end buses according to the channel selection information.

Step S30, converting the command information carried in the control request into a command frame corresponding to the radio frequency front end bus protocol;

The RF front-end control system can extract command information from the control request and convert the command information into a command frame corresponding to the RF front-end bus protocol, that is, convert the command information into the format specified by the RF front-end bus protocol, and the converted command information is called a command frame for distinction.

Step S40: sending a command frame converted according to the control request to a radio frequency front-end device connected to the radio frequency front-end bus selected by the control request.

After determining the RF front-end bus selected by the control request and converting the command information carried in the control request into a command frame, the RF front-end control system sends the command frame to the RF front-end device connected to the RF front-end bus selected by the control request to achieve control of the RF front-end device.

In this embodiment, a control request sent by a control terminal of a radio frequency front-end device is received; the radio frequency front-end bus selected by the control request is determined from various sets of radio frequency front-end buses according to the channel selection information carried in the control request; the command information carried in the control request is converted into a command frame corresponding to the radio frequency front-end bus protocol; and the command frame converted according to the control request is sent to the radio frequency front-end device connected to the radio frequency front-end bus selected by the control request. The above scheme provided by this embodiment enables various control terminals to share multiple sets of radio frequency front-end buses, thereby improving the utilization rate of the radio frequency front-end bus when controlling the radio frequency front-end device.

Based on the above first embodiment, a second embodiment of the RF front-end control method of the present application is proposed. In this embodiment, the RF front-end control method further includes:

Step A10, for any target RF front-end bus among the RF front-end buses, Detecting whether the target RF front-end bus is selected by a plurality of the control requests at the same time;

In order to avoid conflicts caused by multiple control terminals controlling the same front-end radio frequency device at the same time, which may lead to control failure, in this embodiment, a conflict resolution mechanism is further proposed, which is described in detail below.

For any set of RF front-end buses among the sets of RF front-end buses (hereinafter referred to as the target RF front-end bus for distinction), it is possible to detect whether the target RF front-end bus is selected by multiple control requests at the same time. When the RF front-end control system receives multiple control requests, these multiple control requests may need to control the same RF front-end device. After determining the RF front-end bus selected by each control request based on the channel selection information carried in each control request, it is possible to determine whether the target RF front-end bus is selected by multiple control requests at the same time.

Step A20, if the target RF front-end bus is selected by multiple control requests at the same time, sorting the multiple control requests for selecting the target RF front-end bus according to the priority order of various control terminals;

If the target RF front-end bus is selected by multiple control requests at the same time, the RF front-end control device can sort the control requests. There are many sorting rules, such as random sorting, which is not limited in this embodiment. In a feasible implementation, the priority order of each control terminal can be pre-set, for example, it can be set to NR modem>LTEA modem>v2x modem>WCDMA modem>TD modem>GSM modem>ARM; according to the priority order of each control terminal, the multiple control requests that simultaneously select the target RF front end are sorted, that is, the higher the priority of the control terminal that sends the control request, the higher the control request is ranked.

Step A30: for selecting the multiple control requests for the target RF front-end bus, execute the step S40 in sequence according to the sorting order.

After sorting the control requests, the command frames of the control requests can be sent in sequence according to the sorting order, that is, the command frames corresponding to the control requests in the front are sent first, and then the command frames corresponding to the control requests in the back are sent. It should be noted that in a specific implementation, the control requests can be converted into command frames first and then sent in sequence, or the control requests can be converted one by one in sequence and sent one by one, and then the next one is converted after one is sent.

In this embodiment, when there are multiple control requests selecting a set of RF front-end buses at the same time, the multiple control requests are sorted, and the command frames corresponding to the multiple control requests are sent out in sequence according to the sorting order, thereby avoiding the situation where multiple control terminals simultaneously control the same front-end RF device. Conflicts may occur due to control failure.

In a feasible implementation manner, after step S20, the method further includes:

Step A40, sending a request signal to the conflict detection circuit corresponding to the RF front-end bus selected by the control request;

In this embodiment, a scheme for implementing the conflict detection function in the conflict resolution mechanism based on a circuit is proposed, which is described in detail below. A conflict detection circuit can be set for each set of RF front-end buses. Whenever the RF front-end control system receives a control request and determines the RF front-end bus selected by the control request, it can send a request signal to the conflict detection circuit corresponding to the RF front-end bus selected by the control request. The form of the request signal is not limited in this embodiment. For example, it can be a high-level signal that lasts for a certain period of time sent to the conflict detection circuit.

After step S40, the method further includes:

Step A50, after sending the command frame converted according to the control request, sending an end signal to the conflict detection circuit;

After the RF front-end control system completes sending each command frame converted from a control request, it can send an end signal to the conflict detection circuit. The form of the end signal is not limited in this embodiment, for example, it can be a high-level signal that lasts for a certain period of time to the conflict detection circuit.

The step S50 comprises:

Step S501, after receiving the request signal corresponding to the control request sent by a target control terminal, a target conflict detection circuit starts to generate a latch signal corresponding to the target control terminal, wherein the target conflict detection circuit is a conflict detection circuit corresponding to the target radio frequency front-end bus;

The conflict detection circuit corresponding to the target RF front-end bus is referred to as a target conflict detection circuit for distinction, and any one of the control terminals is referred to as a target control terminal for distinction. The RF front-end control system can start generating a latch signal corresponding to the target control terminal after receiving a request signal corresponding to a control request sent by the target control terminal through the target conflict detection circuit, that is, after receiving a request signal triggered by the control request sent by the target control terminal through the target conflict detection circuit. If the target conflict detection circuit receives multiple request signals at the same time, multiple latch signals will be generated accordingly. The form of the latch signal is not limited in the present embodiment. For example, it can be a continuous high-level signal. When the request signal is a high-level signal of a certain duration, it can be opened at the falling edge of the request signal. Start pulling the level high to generate a latch signal.

In a specific implementation, the RF front-end control system is connected to different control ends using different connection lines, and the RF front-end control system distinguishes which control end the control request comes from based on the connection line that receives the control request. Alternatively, the control end may carry its own ID in the control request, and the RF front-end control system distinguishes which control end the control request comes from based on the ID.

Step S502, after receiving the end signal corresponding to the control request sent by the target control end once, the target conflict detection circuit ends generating the latch signal corresponding to the target control end;

The RF front-end control system can stop generating a latch signal corresponding to the target control end after receiving an end signal corresponding to a control request sent by the target control end through the target conflict detection circuit, that is, after receiving an end signal triggered by a control request sent by the target control end through the target conflict detection circuit. For example, when the latch signal is a continuous high-level signal and the end signal is a high-level signal of a certain duration, the latch signal can be pulled down starting from the falling edge of the end signal to stop generating the latch signal.

Step S503: when it is detected at the target time that the number of the latch signals generated by the target conflict detection circuit is greater than 1, it is determined that the target RF front-end bus is simultaneously selected by a plurality of the control requests at the target time.

Any moment is referred to as a target moment for distinction. When the number of latch signals generated by the target conflict detection circuit is detected to be greater than 1 at the target moment, the RF front-end control system can determine that the target RF front-end bus is simultaneously selected by multiple control requests at the target moment. When the latch signal is a continuous high-level signal, the number of high-level signals generated by the target conflict detection circuit can be detected at the target moment, that is, the number of latch signals.

In one feasible implementation, the RF front-end control method further includes:

Step A60, after receiving the request signal corresponding to the control request sent by the target control end once, the target conflict detection circuit caches the command information carried by the control request sent by the target control end;

In this embodiment, a conflict reporting mechanism is proposed to report the conflict and the specific content of the conflict to the software control end, which is described in detail below.

The RF front-end control system can receive a request signal corresponding to a control request sent by a target control end through a target conflict detection circuit, that is, after receiving the control request through the target conflict detection circuit, After receiving the request signal triggered by the control request sent by the target control end, the command information carried by the control request sent by the target control end is cached. It should be noted that the command information is not limited to caching only the command information, but at least means caching the command information, that is, in some implementations, some information other than the command information can also be cached, such as caching the control request as a whole.

In a specific implementation manner, when the command information carried in the control request newly sent by the target control end is cached, the command information carried in the control request sent by the target control end that was previously cached may be overwritten.

After step S50, the following steps are included:

Step A70, if the target RF front-end bus is selected by multiple control requests at the same time, the latch signals generated by the target conflict detection circuit are spliced according to a preset splicing order of various control terminals to obtain a control terminal conflict signal;

An arrangement order of each control terminal can be set in advance, which is referred to as the splicing order below. If the target RF front-end bus is selected by multiple control requests at the same time, the RF front-end control system can splice each latch signal generated by the target conflict detection circuit according to the splicing order of each control terminal, and the obtained signal is called the control terminal conflict signal. In a specific implementation, the control terminal conflict signal obtained by splicing is a signal composed of a first signal and a second signal, wherein the control terminal with a latch signal corresponds to the first signal, and the control terminal without a latch signal corresponds to the second signal, and the arrangement order of the first signal and the second signal in the control terminal conflict signal is the splicing order of each control terminal. The first signal and the second signal are different signals, and their forms are not limited in this implementation. For example, the first signal can be a high-level signal, and the second signal can be a low-level signal. When splicing according to the splicing order, the control terminal with a latch signal has a high-level signal at the corresponding position in the control terminal conflict signal, and the control terminal without a latch signal has a low-level signal at the corresponding position in the control terminal conflict signal. Assuming that the control terminal with a latch signal is LTE, TD, or GSM, the spliced control terminal conflict signal is shown in Figure 3.

Step A80, reporting the control end conflict signal and each command information cached by the target conflict detection circuit to the software control end.

The RF front-end control system can report the spliced control end conflict signal and each command information cached by the target conflict detection circuit to the software control end, so that the software control end can know which control ends have conflicts and the specific content of the conflicts. A register is set for each control end respectively. The RF front-end control system can cache the command information carried by the control request sent by the target control end into the register corresponding to the target control end through the target conflict detection circuit, and obtain the command information from the register for reporting when reporting.

Based on the above first and/or second embodiments, a third embodiment of the RF front-end control method of the present application is proposed. In this embodiment, step S40 includes:

Step S401, according to a preset mapping relationship between command modes and data volumes, setting the data volume corresponding to the command mode carried in the control request as the count value of the counter;

The RF front-end bus consists of two lines, SCLK and SDATA. SCLK is the clock line controlled by the master device and is used to send clock pulse signals. The SDATA line is a bidirectional data line used to transmit specific information between the master and slave devices. The information sent through the SDATA line must be aligned with the clock pulse signal, that is, one bit of information is sent in each clock pulse signal cycle.

In this embodiment, a simple command frame sending method is proposed, which is described in detail below. For various command modes specified in the RF front-end bus protocol, the mapping relationship between various command modes and data volume can be pre-set in the RF front-end control system. The data volume corresponding to the command frames of different command modes is different, that is, the length of the command frame is different. Using this feature, the RF front-end control system sets the data volume corresponding to the command mode carried in the control request as the count value of the counter, and uses the counter counting method to generate a clock pulse signal.

Step S402, counting according to the count value by the counter;

Counting is performed by a counter according to the count value. In a specific implementation, countdown or count-up can be used, which is not limited here. For example, countdown starts from the count value and ends when it decreases to 1, and count-up starts from 1 and ends when it increases to the count value.

Step S403: after each count by the counter, a clock pulse signal and one bit of information in the command frame are sent to the RF front-end device connected to the RF front-end bus selected by the control request.

After each count of the counter, the RF front-end control system can send a clock pulse signal and one bit of information in the command frame to the RF front-end device connected to the RF front-end bus selected by the control request, thereby sending the command frame. The command frame is sent by counting the counter, and the implementation method is simple.

In one feasible implementation, step S402 includes:

Step S4021, counting is performed by the counter at the target frequency according to the count value, wherein: The target frequency is the frequency carried in the control request, and the frequency carried in the control request is the frequency of the radio frequency front-end device supported by the control request.

Considering that different RF front-end devices may support different frequencies for sending command frames, the frequencies of the supported RF front-end devices may be carried in the control request. The RF front-end bus may use the frequency carried in the control request as the counting frequency of the timer, and count according to the frequency through the counter, thereby sending the command frame at the corresponding sending frequency.

Based on the above first, second and/or third embodiments, a fourth embodiment of the RF front-end control method of the present application is proposed. In this embodiment, after step S40, the method further includes:

Step B10, reporting the readback data obtained by reading back the command frame together with the readback indication information carried in the control request to the software control end, so that the software control end can match the control request corresponding to the reported readback data according to the reported readback indication information.

The command mode in the command frame sent by the software control end may be register read. After the RF front-end device receives the command frame sent by the RF front-end control system through the RF front-end bus, it can respond to the command frame to read the corresponding data and send the read data (hereinafter referred to as readback data for distinction) to the RF front-end control system; after the RF front-end control system receives the readback data returned by the RF front-end device for the command frame converted from the control request, the readback indication information carried in the control request and the readback data can be reported to the software control end together, so that the software control end can match the readback data with the corresponding control request according to the reported readback indication information, that is, the software control end can know which control request the readback data is read from. The content of the readback indication information is not limited in this embodiment, but it can be understood that the readback indication information carried in different control requests sent by the control end is different.

In a feasible implementation, when the software control end is ARM, the readback data can be reported through the APB (Advanced Peripheral Bus) interface, and the readback indication information can be the address of the register in the APB interface. The RF front-end control system can send the readback data and the readback indication information to the APB interface. The APB interface caches the readback data in the register represented by the readback indication information. When the software control end needs to obtain the data read by the control request, it obtains the readback data from the register represented by the readback indication information carried by the control request in the APB interface.

Based on the above first, second, third and/or fourth embodiments, a fifth embodiment of the RF front-end control method of the present application is proposed. In this embodiment, before step S30, the method further includes:

Step C10, obtaining the protocol information carried in the control request;

In this embodiment, it is proposed that on the basis of supporting the RF front-end bus protocol, other protocols can also be supported to improve the flexibility of RF front-end control, which is described in detail below. The control request sent by the control end can carry protocol information, and the protocol information indicates the protocol required to send a command frame to the RF front-end device. The protocol information can indicate the use of the RF bus protocol or other protocols. The control end can determine which protocol to use based on the specific application scenario of the RF front-end control, and then carry the corresponding protocol information in the control request. In this embodiment, there is no restriction on other protocols that can be indicated.

Step C20, when the protocol information indicates that the protocol adopted by the control request is the RF front end bus protocol, converting the command information carried in the control request into a command frame corresponding to the RF front end bus protocol is executed.

After receiving a control request, the RF front-end control system can extract the protocol information carried in the control request. When the protocol information indicates that the protocol adopted by the control request is the RF front-end bus protocol, that is, it indicates that the command frame needs to be sent using the RF front-end bus protocol, the command information carried in the control request can be converted into a command frame corresponding to the RF front-end bus protocol, and then the command frame is sent through the selected RF front-end bus.

In a feasible implementation manner, when the protocol information indicates that the protocol adopted by the control request is other protocols, that is, when it indicates that the command frame needs to be sent via other protocols, the command information carried in the control request can be converted into a command frame corresponding to other protocols, and then the command frame can be sent through the sending channel corresponding to other protocols.

Based on the above first, second, third, fourth and/or fifth embodiments, a sixth embodiment of the RF front-end control method of the present application is proposed. In this embodiment, the RF front-end control method further includes:

Step D10: Obtain various information from the control request according to the preset message format.

In order to reduce the implementation complexity of the RF front-end control system and improve the performance of the RF front-end control system, in this embodiment, it is proposed that various control terminals send control requests in the form of messages, and the messages follow a unified preset message format. The preset message format specifies the organization method of various information in the message. In this embodiment, there is no restriction on the preset message format. Since the control requests sent by various control terminals are all messages in a unified format, the RF front-end control system can extract various information in the message in a unified parsing method. Compared with setting a parsing method for each control terminal, the implementation complexity of the RF front-end control system is greatly reduced.

In a feasible implementation, the preset message format may be: the message has a total of 46 bits, that is, 0 to 45 There are 46 bits in total, of which [45:43] bits are used to indicate readback indication information, [42:39] bits are used to indicate channel selection information, the 38th bit is used to indicate the frequency of the supported RF front-end device, and the [37:35]th bit is used to indicate protocol information; the lower 20 bits in the lower [34:0] bits are used to indicate command information, and the remaining high bits are used to indicate other data information that needs to be transmitted. For example, when the lower 20 bits cannot record the command information, the remaining high bits can be used to indicate it.

In a feasible implementation, as shown in FIG4 , the RF front-end control system may include four modules, namely, an input_mux module (or an input module), a conflict check module (or a conflict detection module), an RFFE master module (or an RF front-end master module), and an APB interface module. Among them, a conflict check module and an RFFE master module constitute an RF front-end link, and an RF front-end link corresponds to a set of RF front-end buses.

The input_mux module is used to receive the message and enable signal sent by the control end, and send the message to the corresponding RF front-end link according to the channel selection information in the message, or remove the channel selection information or other subsequent unnecessary information in the message, and the remaining part constitutes a data packet, and sends the data packet to the conflict check module in the RF front-end link, and sends a request signal to the conflict check module.

The conflict check module in the RF front-end link mainly implements packet conflict detection and priority arbitration. The implementation method is that after the conflict check module receives the request signal sent by the input_mux module, it generates a latch signal corresponding to the control end that triggers the request signal; the conflict check module counts the latch signal currently being processed. If the count value is greater than 1, it means that there is a conflict, and a conflict interrupt signal is generated for reporting, thereby realizing conflict detection, and splicing the latch signals of all control ends to obtain the control end conflict signal, which is reported to the APB interface module. The software control end reads the specific splicing data through the APB interface, determines which specific bits are pulled high, and knows which control ends have conflicts. At the same time, the cached data packets are reported. The software control end can read the specific data packets to determine what the content of the conflict is. The conflict check module also implements an arbitration mechanism, which arbitrates according to the priority of different standards. The priority of each control end can be designed in the system, such as NR modem>LTEA modem>v2x modem>WCDMA modem>TD modem>GSM modem>ARM. This part of the function can be implemented by a state machine. The state machine transition diagram is shown in Figure 5. Here, NR modem is taken as an example. If the latch signal is detected to be an NR modem latch signal, a write enable is generated and the data packet corresponding to the NR modem is written to the RFFE master. Each state is forced to jump to the Idle state and re-query.

The RFFE master module in the RF front-end link is used to receive data packets sent by the conflict check module in order of priority. Each data packet can be cached in a fifo (First In First Out) in order, and the RFFE master module processes the data packets in the fifo in sequence. The RFFE master module sets the count value of the counter according to the command mode carried in the data packet, and sends the clock pulse signal and the information in the command frame according to the counter count. As shown in Figure 6, the top is the clock pulse signal, and the one starting with SSC is the data line. The data line is implemented in accordance with the standard RFFE protocol, that is, the transmission starts with SSC, followed by the specific device ID information (SA in the figure), followed by the command mode, and then the relevant address or data information is sent according to different command modes; the P bit in the figure refers to the check bit, which is checked by a parity check circuit, and the check result is attached to the corresponding data bit. The check bit is divided into a command check bit and a data check bit. Because the length of the data line varies in different modes, the counter is used to implement it to adapt to various modes. Figure 6 only shows the processing diagram of the three command modes of register0 write, register write and register read. It can be seen that the count values are different in the three command modes. The processing methods of other command modes are similar. After the RFFE master module sends a command frame, it can send a response signal to the control end to instruct the control end to continue sending messages.

The APB interface module mainly implements software configuration and readback functions. Among them, the software configuration, that is, the control request sent by the software control end, is sent to the input_mux module through the APB interface. The readback function is: the data read back by the RFFE master module matches the readback indication information in the message and is reported to the APB interface module. The APB interface module caches the readback data in the corresponding register according to the readback indication information, and the software control end reads the readback data from the register. The control end conflict signal generated by the conflict check module and the cached conflicting data packet can also be reported to the software control end through the APB interface module. The message sent by the modem received by the input_mux module can also be reported to the software control end through the APB interface module to track the message through the software control end.

In addition, the embodiment of the present application further provides a radio frequency front-end control device. Referring to FIG. 7 , the radio frequency front-end control device includes:

A receiving module 10, configured to receive a control request sent by a control terminal of a radio frequency front-end device;

A determination module 20, configured to determine the RF front-end bus selected by the control request from each set of RF front-end buses according to the channel selection information carried in the control request;

The conversion module 30 is used to convert the command information carried in the control request into a command frame corresponding to the radio frequency front end bus protocol;

The sending module 40 is used to send the command frame converted according to the control request to the RF front-end device connected to the RF front-end bus selected by the control request.

In one embodiment, the RF front-end control device further includes:

A detection module, used for detecting, for any one of the sets of target RF front-end buses, whether the target RF front-end bus is selected by a plurality of the control requests at the same time;

A sorting module, configured to sort the multiple control requests for selecting the target RF front-end bus according to a preset priority order of various control terminals if the target RF front-end bus is selected by multiple control requests at the same time;

The sending module 40 is used to execute the command frames converted according to the control requests in sequence according to the sorting order for selecting multiple control requests of the target RF front-end bus to be sent to the RF front-end device connected to the RF front-end bus selected by the control request.

In one implementation, each set of the RF front-end buses corresponds to a conflict detection circuit, and the sending module 40 is further used for:

Sending a request signal to a conflict detection circuit corresponding to the RF front-end bus selected by the control request;

After sending the command frame converted according to the control request, sending an end signal to the conflict detection circuit;

The detection module is also used for:

After receiving the request signal corresponding to the control request sent by the target control terminal, the target conflict detection circuit starts to generate a latch signal corresponding to the target control terminal, wherein the target conflict detection circuit is a conflict detection circuit corresponding to the target radio frequency front-end bus;

After receiving the end signal corresponding to the control request sent by the target control end once, the target conflict detection circuit ends generating the latch signal corresponding to the target control end;

When it is detected at a target time that the number of latch signals generated by the target conflict detection circuit is greater than 1, it is determined that the target RF front-end bus is simultaneously selected by a plurality of control requests at the target time.

In one embodiment, the RF front-end control device further includes:

The cache module is used to receive the request signal corresponding to the control request sent by the target control end through the target conflict detection circuit, and then caching the command information carried by the control request;

A splicing module, configured to splice the latch signals generated by the target conflict detection circuit according to a preset splicing order of various control terminals to obtain a control terminal conflict signal if the target RF front-end bus is selected by multiple control requests at the same time;

The first reporting module is used to report the control end conflict signal and each command information cached by the target conflict detection circuit to the software control end.

In one implementation, the control request sent by various control terminals is a message generated according to a unified preset message format, and the radio frequency front-end control device further includes:

The first acquisition module is used to acquire various information from the control request according to the preset message format.

In one implementation, the sending module 40 is further configured to:

According to a preset mapping relationship between the command mode and the data volume, the data volume corresponding to the command mode carried in the control request is set as the count value of the counter;

Counting according to the count value by the counter;

After each count by the counter, a clock pulse signal and one bit of information in the command frame are sent to the RF front-end device connected to the RF front-end bus selected by the control request.

In one implementation, the sending module 40 is further configured to:

Counting is performed by the counter at a target frequency according to the count value, wherein the target frequency is the frequency carried in the control request, and the frequency carried in the control request is the frequency of the RF front-end device supported by the control request.

In one embodiment, the RF front-end control device further includes:

The second reporting module is used to report the readback data obtained by reading back the command frame and the readback indication information carried in the control request to the software control end, so that the software control end can match the control request corresponding to the reported readback data according to the reported readback indication information.

In one embodiment, the RF front-end control device further includes:

A second acquisition module, used to acquire the protocol information carried in the control request;

The conversion module 30 is further configured to convert the command information carried in the control request into a command frame corresponding to the RF front end bus protocol when the protocol information indicates that the protocol adopted by the control request is the RF front end bus protocol.

The specific implementation of the RF front-end control device of this application is extended to the above RF front-end control device. The manufacturing methods of the various embodiments are basically the same and will not be described in detail here.

In addition, an embodiment of the present application further proposes a computer-readable storage medium, on which a radio frequency front-end control program is stored. When the radio frequency front-end control program is executed by a processor, the steps of the radio frequency front-end control method described below are implemented.

The various embodiments of the RF front-end control device and the computer-readable storage medium of the present application can refer to the various embodiments of the RF front-end control method of the present application, and will not be repeated here.

It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

The serial numbers of the embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present application.

The above are only optional embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

A radio frequency front end control method, wherein the radio frequency front end control method comprises:

Receive a control request sent by a control terminal of a radio frequency front-end device;

Determine the RF front-end bus selected by the control request from each set of RF front-end buses according to the channel selection information carried by the control request;

Converting the command information carried in the control request into a command frame corresponding to the radio frequency front-end bus protocol;

The command frame converted according to the control request is sent to the RF front-end device connected to the RF front-end bus selected by the control request.
The RF front-end control method according to claim 1, wherein the RF front-end control method further comprises:

For any one of the target RF front-end buses, detecting whether the target RF front-end bus is selected by a plurality of the control requests at the same time;

If the target RF front-end bus is selected by multiple control requests at the same time, the multiple control requests for selecting the target RF front-end bus are sorted according to the priority order of various control terminals;

For the multiple control requests for selecting the target RF front-end bus, the command frames converted according to the control requests are sent to the RF front-end device connected to the RF front-end bus selected by the control request in sequence in the sorted order.
The RF front-end control method according to claim 2, wherein each set of RF front-end buses corresponds to a conflict detection circuit, and after determining the RF front-end bus selected by the control request from each set of RF front-end buses, further comprising:

Sending a request signal to a conflict detection circuit corresponding to the RF front-end bus selected by the control request;

After sending the command frame converted according to the control request to the RF front-end device connected to the RF front-end bus selected by the control request, the method further includes:

After sending the command frame converted according to the control request, sending an end signal to the conflict detection circuit;

The detecting whether the target RF front-end bus is selected by a plurality of the control requests at the same time comprises:

After receiving the request signal corresponding to the control request sent by the target control terminal, the target conflict detection circuit starts to generate a latch signal corresponding to the target control terminal, wherein the target conflict detection circuit is a conflict detection circuit corresponding to the target radio frequency front-end bus;

After receiving the end signal corresponding to the control request sent by the target control end once, the target conflict detection circuit ends generating the latch signal corresponding to the target control end;

When it is detected at a target time that the number of latch signals generated by the target conflict detection circuit is greater than 1, it is determined that the target RF front-end bus is simultaneously selected by a plurality of control requests at the target time.
The RF front-end control method according to claim 3, wherein the RF front-end control method further comprises:

After receiving the request signal corresponding to the control request sent by the target control end once, the target conflict detection circuit caches the command information carried by the control request sent by the target control end;

After detecting whether the target RF front-end bus is selected by a plurality of the control requests at the same time, the method further comprises:

If the target RF front-end bus is selected by multiple control requests at the same time, the latch signals generated by the target conflict detection circuit are spliced according to a preset splicing order of various control terminals to obtain a control terminal conflict signal;

The control end conflict signal and each command information buffered by the target conflict detection circuit are reported to the software control end.
The RF front-end control method according to claim 1, wherein the control request sent by various control terminals is a message generated according to a unified preset message format, and the RF front-end control method further comprises:

Obtain various information from the control request according to the preset message format.
The RF front-end control method according to claim 1, wherein the sending of the command frame converted according to the control request to the RF front-end device connected to the RF front-end bus selected by the control request comprises:

According to a preset mapping relationship between the command mode and the data volume, the data volume corresponding to the command mode carried in the control request is set as the count value of the counter;

Counting according to the count value by the counter;

After each count by the counter, a clock pulse signal and one bit of information in the command frame are sent to the RF front-end device connected to the RF front-end bus selected by the control request.
The RF front-end control method according to claim 6, wherein the counting according to the count value by the counter comprises:

Counting is performed by the counter at a target frequency according to the count value, wherein the target frequency is the frequency carried in the control request, and the frequency carried in the control request is the frequency of the RF front-end device supported by the control request.
The RF front-end control method according to claim 1, wherein after sending the command frame converted according to the control request to the RF front-end device connected to the RF front-end bus selected by the control request, it also includes:

The readback data obtained by reading back the command frame and the readback indication information carried in the control request are reported to the software control end, so that the software control end can match the control request corresponding to the reported readback data according to the reported readback indication information.
The RF front-end control method according to any one of claims 1 to 8, wherein before converting the command information carried in the control request into a command frame corresponding to the RF front-end bus protocol, it also includes:

Obtaining protocol information carried in the control request;

In a case where the protocol information indicates that the protocol adopted by the control request is the RF front end bus protocol, the step of converting the command information carried in the control request into a command frame corresponding to the RF front end bus protocol is performed.
[Corrected 14.06.2023 in accordance with Rule 26]
A radio frequency front-end control device, wherein the radio frequency front-end control device comprises:

A receiving module, configured to receive a control request sent by a control terminal of a radio frequency front-end device;

A determination module, configured to determine the RF front-end bus selected by the control request from each set of RF front-end buses according to the channel selection information carried in the control request;

A conversion module, configured to convert the command information carried in the control request into a command frame corresponding to the RF front-end bus protocol;

The sending module is configured to send the command frame converted according to the control request to the RF front-end device connected to the RF front-end bus selected by the control request.
A radio frequency front-end control device, wherein the radio frequency front-end control device comprises: a memory, a processor, and a radio frequency front-end control program stored in the memory and executable on the processor, wherein the radio frequency front-end control program, when executed by the processor, implements the radio frequency front-end control method according to any one of claims 1 to 9.
A computer-readable storage medium, wherein a radio frequency front-end control program is stored on the computer-readable storage medium, and when the radio frequency front-end control program is executed by a processor, the radio frequency front-end control method according to any one of claims 1 to 9 is implemented.