WO2022183788A1

WO2022183788A1 - Signal transmission method and device, and computer-readable storage medium

Info

Publication number: WO2022183788A1
Application number: PCT/CN2021/133202
Authority: WO
Inventors: 张玉杰; 罗志芳
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-03-02
Filing date: 2021-11-25
Publication date: 2022-09-09
Also published as: CN115002896A

Abstract

A signal transmission method and device, and a computer-readable storage medium. The signal transmission method comprises: within a transmission period of time, acquiring a plurality of pieces of transmission information that are returned according to a slot sequence, wherein the plurality of pieces of transmission information are generated at the same air interface moment, and different transmission information carries positioning data in different time slots after being returned according to the slot sequence (S700); merging all the transmission information to obtain returned information formed by the positioning data (S800); and according to the slot sequence, identifying, from the returned information, positioning data corresponding to different transmission information (S900).

Description

Signal transmission method and device thereof, and computer-readable storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with the application number 202110229288.X and the filing date on March 2, 2021, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is incorporated herein by reference.

technical field

The embodiments of the present application relate to, but are not limited to, the field of communication technologies, and in particular, relate to a signal transmission method and device thereof, and a computer-readable storage medium.

Background technique

In the networking scenario of the 5G indoor distributed pico-base station system, the base station can use a variety of positioning technologies to locate the terminal. For example, multiple radio frequency units in the base station can receive uplink positioning data from the terminal at the same air interface moment, and Each uplink positioning data is transmitted to the baseband unit of the base station, so that the baseband unit can locate the terminal by analyzing all the uplink positioning data; The data is combined and transmitted. Although this method can transmit all the uplink positioning data to the baseband unit, it cannot distinguish the correspondence between each radio frequency unit and the uplink positioning data, which will affect the positioning accuracy of the terminal.

SUMMARY OF THE INVENTION

The following is an overview of the topics detailed in this article. This summary is not intended to limit the scope of protection of the claims.

Embodiments of the present application provide a signal transmission method, a device thereof, and a computer-readable storage medium, which can improve the positioning accuracy of a terminal.

In a first aspect, an embodiment of the present application provides a signal transmission method, which includes:

Acquire multiple transmission information returned in the order of time slots within the transmission time, wherein the multiple transmission information is generated at the same air interface moment, and different transmission information carries positioning data in different time slots after being returned in the order of time slots ;

Combine all transmission information to obtain return information formed by positioning data;

Positioning data corresponding to different transmissions are identified from the return information in the order of time slots.

In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to a distributed pico base station. The distributed pico base station includes a baseband unit, an extension unit, and a plurality of radio frequency units. The method includes:

During the transmission time, the extension unit obtains the transmission information returned from each radio frequency unit in the time slot sequence, wherein the transmission information of each radio frequency unit is generated at the same air interface moment, and the transmission information of different radio frequency units is returned in the time slot sequence. Different time slots after transmission carry positioning data;

Combining all the transmission information through the expansion unit to obtain the return information formed by the positioning data;

The backhaul information is transmitted to the baseband unit, so that the baseband unit identifies the positioning data of different radio frequency units from the backhaul information according to the time slot sequence.

In a third aspect, an embodiment of the present application further provides a signal transmission device, including: a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implements the computer program when the processor executes the computer program The signal transmission method of the first aspect as described above.

In a fourth aspect, the embodiments of the present application further provide a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are used to execute the signal transmission method of the first aspect as described above, or to execute the above-mentioned signal transmission method. The signal transmission method of the second aspect.

Other features and advantages of the present application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the description, claims and drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification. They are used to explain the technical solutions of the present application together with the embodiments of the present application, and do not constitute a limitation on the technical solutions of the present application.

1 is a schematic diagram of a system architecture for performing a signal transmission method provided by an embodiment of the present application;

2 is a schematic diagram of a system architecture for performing a signal transmission method provided by another embodiment of the present application;

3 is a flowchart of a signal transmission method provided by an embodiment of the present application;

FIG. 4 is a flowchart before the transmission information from each radio frequency unit is acquired by the expansion unit in the signal transmission method provided by an embodiment of the present application;

5 is a schematic diagram of acquiring transmission information from each radio frequency unit in a signal transmission method provided by an embodiment of the present application;

6 is a flow chart before combining all transmission information by an extension unit in a signal transmission method provided by an embodiment of the present application;

FIG. 7 is a flowchart before combining all transmission information by an extension unit in a signal transmission method provided by another embodiment of the present application;

FIG. 8 is a schematic diagram of obtaining return information in a signal transmission method provided by an embodiment of the present application;

9 is a schematic diagram of obtaining return information in a signal transmission method provided by another embodiment of the present application;

10 is a flowchart of a signal transmission method provided by another embodiment of the present application;

11 is a flow chart before combining all transmission information in a signal transmission method provided by an embodiment of the present application;

12 is a flow chart before combining all transmission information in a signal transmission method provided by an embodiment of the present application;

FIG. 13 is a flowchart before acquiring the transmission information from each radio frequency unit in the signal transmission method provided by an embodiment of the present application; and

FIG. 14 is a schematic diagram of a signal transmission device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, the modules may be divided differently from the device, or executed in the order in the flowchart. steps shown or described.

The present application provides a signal transmission method, a device, and a computer-readable storage medium. By acquiring a plurality of transmission information generated at the same air interface moment and returned in the order of time slots within the transmission time, since different transmission information is returned in Different time slots after transmission carry the positioning data. Therefore, after combining all the transmission information to obtain the return information formed by the positioning data, the transmission of all the positioning data generated at the same air interface moment can be realized by using one transmission channel. In addition, the positioning data corresponding to different transmission information generated at the same air interface moment can be identified from the returned information according to the time slot sequence, without the need to transmit positioning data independently, and it will not cause the combined positioning data to be difficult to distinguish and identify. , so that the positioning accuracy of the terminal can be improved.

The embodiments of the present application will be further described below with reference to the accompanying drawings.

As shown in FIG. 1 , FIG. 1 is a schematic diagram of a system architecture 100 for executing a signal transmission method provided by an embodiment of the present application.

In the example of FIG. 1 , the system architecture 100 can be applied to, but is not limited to, a distributed pico base station, wherein the system architecture 100 includes but is not limited to a baseband unit 130 , an extension unit 120 and a plurality of radio frequency units 110 (ie, as shown in FIG. 1 ) RF unit 1, RF unit 2... RF unit n) shown in, wherein, the baseband unit 130 (Basic Bandwidth Unit, BBU) is a processing unit in the distributed pico base station architecture, which is used to receive and identify the relevant information in the base station The uplink data signal is used to realize operations such as positioning the terminal; the radio frequency unit 110 (Remote Radio Unit, RRU) has an open interface, which can be matched with external signals to acquire and transmit relevant uplink data signals. The radio frequency unit 110 and the baseband unit 130 It can be connected by optical fiber, and one baseband unit 130 can support multiple radio frequency units 110, and multiple radio frequency units 110 can return related data signals on the same optical fiber. The multi-channel structure composed of the radio frequency unit 110 can well solve the indoor coverage problem in large and medium-sized areas, and is conducive to more accurate terminal positioning in large and medium-sized areas; the extension unit 120 (HUB) is used as a relay transmission unit to connect the baseband. The unit 130 and each radio frequency unit 110 are mainly used for summarizing and combining and transmitting the uplink data signals from each radio frequency unit 110 . Through the cooperation among the baseband unit 130, the extension unit 120 and the plurality of radio frequency units 110, signal transmission and resolution can be stably and reliably realized, which is beneficial to improve the positioning accuracy of the terminal.

It should be noted that the system architecture 100 can also be applied to, but not limited to, specific sites in a distributed pico base station under various conditions. For example, when it is applied to each site in a 5G base station, each site can The corresponding system architecture 100 is set for signal transmission, and the signal transmission between the various sites can be maintained normally without affecting each other, which is not limited in an embodiment.

In one embodiment, the number of extension units 120 in the distributed pico base station may be set to be multiple. As shown in FIG. 2 , the number of extension units 120 is set to three, and each extension unit 120 is correspondingly connected to several radio frequency units on an optical fiber. 110 (as shown in FIG. 2, each radio frequency unit 110 is distinguished by different numbers) to receive the uplink data signal sent back by several radio frequency units 110 on the optical fiber at the same time, and different expansion units 120 can pass through the cascade port Connect, so that the uplink data signals combined by each expansion unit 120 can be combined together again, that is, the combined output signals corresponding to different expansion units 120 can be superimposed, so that all uplink data signals can be combined and transmitted to in the baseband unit 130 .

In an embodiment, the frame structure in the distributed pico base station applied by the system architecture 100 can be set by itself, based on the content and composition of the frame structure to provide a good transmission environment for signal transmission, for example, it can be based on the 5G base station. Time-division Duplex (TDD) conditions or Frequency-division Duplex (FDD) conditions, etc. are used to set the subframe composition, symbol ratio, etc. of the corresponding frame, which is not in this embodiment. limit.

In one embodiment, the system architecture 100 is not limited in the positioning method that can be adapted to the application, for example, round trip delay (Round Trip Time, RTT), downlink time difference of arrival (Downlink Time Difference Of Arrival, DL-TDOA) can be used. Or positioning methods such as Uplink Time Difference Of Arrival (UL-TDOA), since the above positioning methods are well known to those skilled in the art and do not belong to the main improvement content of this application, they are not described here.

In an embodiment, the type of the transmitted signal is not limited, for example, it can be an uplink sounding reference (Sounding Reference Signal, SRS) signal from the terminal, and the SRS signal needs to be backhauled on the frame structure of the base station, and also It may be a signal similar to the SRS signal and needs to be backhauled, which is not limited in this embodiment.

The baseband unit 130, the extension unit 120 and the radio frequency unit 110 may respectively include a memory and a processor, wherein the memory and the processor may be connected by a bus or in other ways.

As a non-transitory computer-readable storage medium, the memory can be used to store non-transitory software programs and non-transitory computer-executable programs. Additionally, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory may optionally include memory located remotely from the processor, which may be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The system architecture 100 and application scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. For the evolution of the architecture 100 and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

It can be understood by those skilled in the art that the system architecture 100 shown in FIG. 1 or FIG. 2 does not constitute a limitation to the embodiments of the present application, and may include more or less components than those shown in the figure, or combine some components, Or a different component arrangement.

In the system architecture 100 shown in FIG. 1 or FIG. 2 , each unit can respectively call its stored signal transmission program to execute the signal transmission method.

Based on the structure of the system architecture 100 described above, various embodiments of a signal transmission method of the present application are proposed.

As shown in FIG. 3, FIG. 3 is a flowchart of a signal transmission method provided by an embodiment of the present application. The signal transmission method can be applied to the system architecture shown in FIG. 1 or FIG. 2. The method includes but is not limited to steps S100 to S300.

In step S100, the transmission information returned from each radio frequency unit according to the time slot sequence is obtained respectively through the expansion unit during the transmission time, wherein the transmission information of each radio frequency unit is generated at the same air interface moment, and the transmission information of different radio frequency units is transmitted according to the time slot. Different time slots after slot sequence backhaul carry positioning data;

In one embodiment, the transmission time may be set according to the actual situation of each radio frequency unit sending transmission information. For example, the time required for all radio frequency units transmitting on the same optical fiber to ensure that transmission information is transmitted at least once may be set as one time. transmission period, then the transmission time depends on the transmission period, and, in practical applications, considering that the period and structure of the frame structure in the base station are different, the associated frame headers corresponding to each radio frequency unit may also be different. Therefore, the transmission time can also be adjusted adaptively based on the above factors, which is not limited in an embodiment.

In one embodiment, the transmission information of different radio frequency units carries positioning data in different time slots after the transmission information in the time slot sequence. The positioning data will only be carried in the corresponding preset time slot, and the positioning data will not be carried when it is in the remaining time slots, which is equivalent to the positioning data transmitted in this time slot as "0". Therefore, it is understandable that, Since different transmission information carries positioning data in different time slots after backhauling, that is, positioning data is sent in each time slot within the transmission time after backhauling, it can ensure that the extension unit obtains all location data.

In an embodiment, the transmission information of the radio frequency unit corresponds to the terminal. Specifically, referring to FIG. 4 , step S100 also includes but is not limited to steps S400 to S500 before.

Step S400, obtaining the positioning signal from the terminal through the radio frequency unit, and the positioning signal carries the positioning data;

Step S500, using the radio frequency unit to obtain the transmission information according to the positioning data.

In one embodiment, the positioning signal from the terminal is obtained through the radio frequency unit. Since the positioning signal of the terminal carries the positioning data, the positioning data corresponding to the terminal can be obtained through the radio frequency unit. Correspondingly, the radio frequency unit is used based on the positioning data. The obtained transmission information can represent the characteristic information of the terminal, that is, the transmission information has a corresponding relationship with the terminal, which is convenient to locate the terminal by uploading the transmission information. It should be noted that since each radio frequency unit is under the same base station, so Each radio frequency unit acquires the positioning signal simultaneously in the time domain, and there is no difference in the time domain. In order to avoid ambiguity, it is hereby explained.

An example is given below to illustrate the specific working principle of the above embodiment.

Example 1

It can be understood that the positioning signal of the terminal can be pre-configured in the frame structure of the base station. As shown in Figure 5, taking the TDD system in 5G as an example, the frame structure is cyclic, with multiple segments of the same subframe, and the radio frequency unit is multiple. Each radio frequency unit obtains the positioning data by confirming the SRS symbol of the terminal, and then can obtain the transmission information according to the positioning data, and store the transmission information for back-up The position of the relevant return symbols transmitted to the frame structure, S1, S2, S3...Sn respectively represent the position symbols of the radio frequency unit 1, the radio frequency unit 2, the radio frequency unit 3...the radio frequency unit n respectively store the corresponding transmission information, and the return symbols The position is adapted to each radio frequency unit, that is, the position of the backhaul symbol corresponds to the time slot to which the radio frequency unit is adapted. Since the position of the backhaul symbol corresponding to different radio frequency units is different, when the radio frequency unit transmits the information back, due to the time slot Therefore, the transmission information returned by each radio frequency unit will be locked at the corresponding return symbol position, that is, S1, S2, S3...Sn on another subframe as shown in Fig. 5. Correspondingly, In the remaining symbol positions, no transmission information is returned, that is, "0" as shown in FIG. 5 .

It can be understood that the positions of the returned symbols of each radio frequency unit may be pre-allocated, that is, a corresponding relationship is established between the radio frequency units and the positions of the returned symbols. The symbol position, or set according to the radio frame number, time slot, etc. in the frame structure, through the above corresponding relationship, it is convenient to accurately and directly return the transmission information to the pre-assigned return symbol position. The combination of the hardware and software devices of the device realizes the allocation of the returned symbol position, which belongs to the prior art in the art, so it will not be repeated here.

It should be noted that D/G in a subframe shown in FIG. 5 represents downlink symbols or GAP symbols, both of which do not occupy uplink backhaul resources in the TDD system, and the specific configuration of D symbols or GAP symbols can be It is set according to the actual frame application situation, which is not limited in this embodiment.

Step S200, combining all the transmission information through the expansion unit to obtain the return information formed by the positioning data;

In one embodiment, since different transmission information carries positioning data in different time slots after the backhaul, that is, it is equivalent to sending positioning data in each time slot within the transmission time after the backhaul, therefore, through The expansion unit merges all the transmission information, which is equivalent to obtaining all the positioning data in sequence according to the time slot, and integrates all the positioning data by forming the return information. The channel can realize the transmission of all positioning data, which makes the uplink transmission more convenient and reliable.

In an embodiment, as shown in FIG. 6 , step S200 further includes but is not limited to step S600 before.

Step S600, align all transmission information through the extension unit.

It is understandable that, because all the transmission information acquired by the extension unit may be acquired from different subframes in the frame structure, or because the transmission information changes differently during transmission, etc., each transmission information may not be In the case of adaptation, obviously this is not conducive to the overall merging. By aligning all transmission information by the expansion unit, all transmission information can be set separately in the order of time slots, so that the expansion unit can obtain a stable and reliable set of transmission information, which can guarantee There will be no error message in the formed return information, so as not to affect the positioning of the terminal.

Further, as shown in FIG. 7 , in the case that the transmission information carries the channel-associated frame header information, step S600 further includes but is not limited to step 610 .

Step S610, align all the transmission information by aligning all the associated frame header information by the extension unit.

In one embodiment, the channel-associated frame header is located on the frame structure. Since the frame structure can be cycled, there may be multiple channel-associated frame headers on the frame structure. When the RF unit returns the transmission information to the corresponding return symbol position, then The channel associated frame header corresponding to the radio frequency unit can be determined by returning the symbol position, that is, different channel associated frame headers correspond to different radio frequency units. Since each radio frequency unit corresponds to its corresponding channel associated frame header information, therefore, By aligning all the header information of the associated frame by the extension unit, the transmission information carried on all the headers of the associated frame can be aligned, so as to ensure that there is no error message in the formed return information, so as not to affect the positioning of the terminal.

In an embodiment, the manner of aligning the transmission information may also be set correspondingly according to the actual situation of the transmission information, which is not limited in this embodiment.

In order to describe the working principles of the above embodiments in more detail, specific examples are given below for description.

Example 2

Referring to FIG. 8, the frame structure of the base station takes a TDD single frame (DDDDDDSUU) with a period of 5ms as an example, and the special subframe S ratio is 6 D symbols: 4 GAP symbols: 4 SRS symbols, which need to be returned during the positioning process. The SRS symbol, that is, the SRS symbol is the positioning symbol sent by the terminal. The configured period of the SRS symbol is 40ms, and the time slot offset is configured as 7. At the same time, the terminal is configured in the special subframe S symbol 10 (that is, the 10th symbol, the same below). ), in addition, there are 3 RF units for RF combining on one optical fiber.

As shown in FIG. 8 , the SRS positioning symbol is configured on the symbol 10 of the seventh time slot (slot, denoted as slot7, the same below) on the special subframe S shown, and the terminal sends the SRS positioning at this position symbol.

Then, the three radio frequency units respectively collect the SRS positioning symbol from the symbol 10 at the same air interface moment, and obtain the transmission information corresponding to the SRS positioning symbol according to the positioning data carried in the SRS positioning symbol at the same air interface moment, and at this position The transmission information is stored, that is, the SRS positioning symbol stored by the radio frequency unit 1 is denoted as S1, correspondingly, the radio frequency unit 2 is denoted as S2, and the radio frequency unit 3 is denoted as S3.

Then, according to the pre-allocated return symbol position, it is selected to be returned on the GAP symbol of slot17 on the current frame, that is, the transmission information of the radio frequency unit 1 will be returned to the first GAP symbol (symbol 6), at the same time, data will not be sent back on symbol 7 and symbol 8 (marked as "0"). Similarly, the transmission information of radio frequency unit 2 will be sent back to symbol 7 on slot17, and at the same time on symbol 6 and symbol 8. No data will be sent back, and the transmission information of RF unit 3 will be sent back to symbol 8 on slot 17, and no data will be sent back on symbols 6 and 7, so that time-slot transmission of transmission information can be realized. .

Then, the expansion unit combines all the transmission information to obtain the return information formed by the positioning data. It can be seen from FIG. 8 that the return information includes the transmission information S1, S2 and S3 corresponding to each radio frequency unit in sequence on the time slot, Therefore, all the transmission information can be combined through the expansion unit to form the return information, and all the positioning data can be integrated on one transmission channel for transmission by using the return information. For the specific working principle, refer to Example 3.

Example three

Referring to Fig. 9, it is assumed that the channel transmission from the radio frequency unit to the expansion unit is mainly based on electrical port transmission, and each radio frequency unit performs electrical port grouping according to their respective frame headers, and numbers all electrical port packets, such as the first One packet is recorded as electrical port packet 0, and the subsequent electrical port packets are deduced by analogy; when the expansion unit obtains all electrical port packets, it will read the electrical port packets according to the corresponding frame header of each radio frequency unit, and The corresponding electrical port packets are 0-aligned to align all the frame headers of the associated channels, and then data combining is performed based on this, so as to obtain the return information carrying all the positioning data.

It should be noted that, in the above example, the GAP symbol of slot 17 on the current frame is selected for back transmission, which is not unique. Alternatively, considering which symbol position is suitable for the baseband unit to extract transmission information when performing baseband processing, it may be determined to perform back transmission at the relevant symbol position, which is not limited in this embodiment.

Step S300 , transmitting the backhaul information to the baseband unit, so that the baseband unit can identify the positioning data of different radio frequency units from the backhaul information according to the time slot sequence.

In one embodiment, the transmission information generated by multiple radio frequency units at the same air interface moment and returned in the order of time slots is acquired by the expansion unit within the transmission time, because different transmission information carries in different time slots after the backhaul. Therefore, after combining all the transmission information through the expansion unit to obtain the return information formed by the positioning data, the transmission of all the positioning data generated at the same air interface moment can be realized by using one transmission channel, and the baseband unit can The slot sequence identifies the positioning data corresponding to different transmission information generated at the same air interface time from the return information. It does not need to transmit the positioning data independently, and it will not cause the combined positioning data to be difficult to distinguish and identify. The positioning accuracy of the terminal.

It can be understood that, compared with the prior art in which each radio frequency unit is used to receive and upload uplink data signals in turn according to time, the embodiment of the present application uses each radio frequency unit to receive and store transmission information at the same time, and differentiate and locate on the time slot. The data is transmitted back in a time-sharing manner, which can reduce the impact of data changes caused by the difference in the time delay of the terminal, thereby reducing the positioning error of the terminal.

Specifically, for a specific implementation based on the embodiment shown in FIG. 8 , refer to Example 4.

Example four

The extension unit transmits the return information to the baseband unit through the optical fiber, so that the baseband unit extracts the positioning data of the radio frequency unit 1 on the symbol 6 of the slot17, extracts the positioning data of the radio frequency unit 2 on the symbol 7 of the slot17, and the symbol 8 of the slot17 The positioning data of the radio frequency unit 3 is extracted from the above, so that the baseband unit receives the positioning data received by each radio frequency unit at the same air interface moment, so that the subsequent positioning calculation can be performed based on all the obtained positioning data. Locate the terminal.

In addition, as shown in FIG. 10 , another embodiment of the present application further provides a signal transmission method, which includes but is not limited to steps S700 to S900.

Step S700: Acquire a plurality of transmission information returned in the order of time slots within the transmission time, wherein the plurality of transmission information is generated at the same air interface moment, and different transmission information is carried in different time slots after being returned in the order of time slots have positioning data;

Step S800, combine all transmission information to obtain return information formed by positioning data;

Step S900, identifying positioning data corresponding to different transmission information from the returned information according to the time slot sequence.

In one embodiment, by acquiring a plurality of transmission information generated at the same air interface moment and transmitted back in the order of time slots within the transmission time, since different transmission information carries positioning data in different time slots after the back transmission, therefore , after combining all the transmission information to obtain the return information formed by the positioning data, the transmission of all the positioning data generated at the same air interface moment can be realized by using one transmission channel, and can be identified from the return information according to the time slot sequence. The positioning data corresponding to different transmission information generated at the same air interface time does not need to transmit the positioning data independently, and it will not cause the combined positioning data to be difficult to distinguish and identify, so that the positioning accuracy of the terminal can be improved.

Moreover, as shown in FIG. 11 , step S800 also includes but is not limited to step S1000 before step S800 .

Step S1000, align all transmission information.

In one embodiment, since all the acquired transmission information may be acquired from different subframes in the frame structure, or because the transmission information changes differently during transmission, it may happen that each transmission information is not suitable. Obviously, this is not conducive to the overall combination, but by aligning all transmission information, all transmission information can be set separately in the order of time slots, so as to facilitate the acquisition of a stable and reliable set of transmission information, which can ensure the return information formed. No error message will appear, so as not to affect the terminal positioning.

Further, as shown in FIG. 12 , in the case that the transmission information carries the channel-associated frame header information, step S1000 further includes but is not limited to step 1100 .

Step S1100, align all the transmission information by aligning all the associated frame header information.

In one embodiment, by aligning the information of all the associated frame headers, the transmission information carried on all the associated frame headers can be aligned, so as to ensure that there is no error message in the formed return information, so as to avoid locating the terminal. make an impact.

Moreover, as shown in FIG. 13 , steps S1200 to S1300 are included but not limited to before step S700 .

Step S1200, obtaining a positioning signal from the terminal, where the positioning signal carries positioning data;

Step S1300, obtaining transmission information according to the positioning data.

In one embodiment, by obtaining the positioning signal from the terminal, since the positioning signal of the terminal carries the positioning data, the positioning data corresponding to the terminal can be obtained through the positioning signal, and correspondingly, the transmission information obtained based on the positioning data can be obtained. Then, characteristic information of the terminal can be represented, that is, the transmission information has a corresponding relationship with the terminal, which facilitates the positioning of the terminal by uploading the transmission information.

It should be noted that, since the signal transmission method in the above-mentioned embodiments and the signal transmission method applied to the system architecture belong to the same inventive concept, the specific implementation of the signal transmission method in the above-mentioned embodiments may refer to the application to the system architecture. In the specific embodiments of the signal transmission method in the above-mentioned embodiments, in order to avoid redundancy, the specific implementation manners of the signal transmission methods in the above-mentioned embodiments are not repeated here.

In addition, as shown in FIG. 14 , an embodiment of the present application further provides a signal transmission device 200 . The signal transmission device 200 includes: a memory 210 , a processor 220 , and a memory 210 and a processor 220 that are stored on the memory 210 and can be used on the processor 220 running computer program.

The processor 220 and the memory 210 may be connected by a bus or otherwise.

It should be noted that the signal transmission device 200 in this embodiment can be applied to the system architecture in the embodiment shown in FIG. 1 or FIG. 2 , and the signal transmission device 200 in this embodiment can form the structure shown in FIG. 1 or FIG. 2 These embodiments all belong to the same inventive concept, so these embodiments have the same implementation principles and technical effects, and will not be described in detail here.

The non-transitory software programs and instructions required to realize the signal transmission method of the above-mentioned embodiment are stored in the memory 210, and when executed by the processor 220, the signal transmission method of the above-mentioned embodiment is executed, for example, the above-described FIG. 3 is executed. method steps S100 to S300 in FIG. 4 , method steps S400 to S500 in FIG. 4 , method step S600 in FIG. 6 , method step S610 in FIG. 7 , method steps S700 to S900 in FIG. 10 , method step S1000 in FIG. 11 , the method step S1100 in FIG. 12 or the method steps S1200 to S1300 in FIG. 13 .

The apparatus embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, an embodiment of the present application also provides a computer-readable storage medium storing computer-executable instructions, the computer-executable instructions being executed by a processor 220 or a controller, for example, by Executed by a processor 220 in the above-mentioned device embodiment, the above-mentioned processor 220 can execute the signal transmission method in the above-mentioned embodiment, for example, execute the method steps S100 to S300 in FIG. 3 and the method steps in FIG. 4 described above. S400 to S500, method step S600 in FIG. 6, method step S610 in FIG. 7, method steps S700 to S900 in FIG. 10, method step S1000 in FIG. 11, method step S1100 in FIG. Method steps S1200 to S1300.

The embodiments of the present application include: acquiring a plurality of transmission information returned in a time slot sequence within a transmission time, wherein the plurality of transmission information is generated at the same air interface moment, and different transmission information is returned in a time slot sequence after different transmission information. The time slot carries the positioning data; all the transmission information is combined to obtain the return information formed by the positioning data; the positioning data corresponding to different transmission information is identified from the return information according to the time slot sequence. According to the solution provided by the embodiment of the present application, by acquiring multiple transmission information generated at the same air interface moment and returned in the order of time slots within the transmission time, since different transmission information carries positioning information in different time slots after the return transmission Therefore, after combining all the transmission information to obtain the return information formed by the positioning data, the transmission of all the positioning data generated at the same air interface moment can be realized by using one transmission channel, and the return information can be transmitted from the return information according to the time slot sequence. The positioning data corresponding to different transmission information generated at the same air interface moment is identified in the system, and there is no need to transmit the positioning data independently, and it will not cause the combined positioning data to be difficult to distinguish and identify, so that the positioning accuracy of the terminal can be improved.

Those of ordinary skill in the art can understand that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

The above is a specific description of the preferred embodiments of the application, but the application is not limited to the above-mentioned embodiments, and those skilled in the art can also make various equivalent deformations or replacements without departing from the spirit of the application, These equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims

A signal transmission method, comprising:

Acquire multiple pieces of transmission information returned in the order of time slots within the transmission time, wherein the pieces of transmission information are generated at the same air interface moment, and different pieces of the transmission information are returned in different time slots after the order of time slots is returned. carry positioning data;

combining all of the transmitted information to obtain return information formed from the positioning data; and

Positioning data corresponding to the different transmissions are identified from the return information in slot order.
The signal transmission method according to claim 1, wherein before said combining all said transmission information, said method further comprises:

Align all of the transfer information.
The signal transmission method according to claim 2, wherein the transmission information further carries channel-associated frame header information, and the aligning all the transmission information includes:

All of the transmission information is aligned by aligning all the associated header information.
The signal transmission method according to claim 1, wherein before acquiring a plurality of transmission information returned in the order of time slots within the transmission time, the method further comprises:

obtaining a positioning signal from the terminal, the positioning signal carrying the positioning data; and

The transmission information is obtained according to the positioning data.
A signal transmission method is applied to a distributed pico base station, the distributed pico base station includes a baseband unit, an extension unit and a plurality of radio frequency units, the method includes:

During the transmission time, the extension unit is used to obtain the transmission information returned from each of the radio frequency units in the order of time slots, wherein the transmission information of each of the radio frequency units is generated at the same air interface moment, and the different radio frequency units The transmission information of the unit carries positioning data in different time slots after being returned according to the time slot sequence;

Combining all of the transmission information by the expansion unit to obtain return information formed by the positioning data; and

The backhaul information is transmitted to the baseband unit, so that the baseband unit identifies different positioning data of the radio frequency unit from the backhaul information in a time slot sequence.
The signal transmission method according to claim 5, wherein, before combining all the transmission information by the expansion unit, the method further comprises:

All the transmission information is aligned by the extension unit.
The signal transmission method according to claim 6, wherein the transmission information further carries channel-associated frame header information, and the aligning all the transmission information by the extension unit comprises:

All the transmission information is aligned by aligning all the associated frame header information by the extension unit.
The signal transmission method according to claim 5, wherein, before obtaining the transmission information returned from each of the radio frequency units in the order of time slots through the expansion unit within the transmission time, the method further comprises:

Obtain a positioning signal from the terminal through the radio frequency unit, the positioning signal carrying the positioning data; and

Using the radio frequency unit to obtain the transmission information according to the positioning data.
A signal transmission device, comprising a memory, a processor and a computer program stored in the memory and running on the processor, wherein the processor implements the computer program as claimed in any one of claims 1 to 4 when the processor executes the computer program. the signal transmission method described above.
A computer-readable storage medium storing computer-executable instructions, the computer-executable instructions being used to execute the signal transmission method described in any one of claims 1 to 4, or to execute the signal transmission method described in any one of claims 5 to 8. the signal transmission method described above.