CN115002896A - Signal transmission method, signal transmission device, and computer-readable storage medium - Google Patents
Signal transmission method, signal transmission device, and computer-readable storage medium Download PDFInfo
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Abstract
The invention provides a signal transmission method, a device thereof and a computer readable storage medium. The signal transmission method comprises the following steps: acquiring a plurality of transmission information returned according to a time slot sequence in transmission time, wherein the plurality 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 time slot sequence; combining all the transmission information to obtain return information formed by the positioning data; the positioning data corresponding to the different transmission information is identified from the backtransmission information in time slot order. In the embodiment of the invention, 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, the independent transmission positioning data is not needed, the positioning data subjected to combined processing cannot be distinguished and identified easily, and the positioning precision of the terminal can be improved.
Description
Technical Field
The embodiments of the present invention relate to, but not limited to, the field of communications technologies, and in particular, to a signal transmission method, a device thereof, and a computer-readable storage medium.
Background
In a networking scenario of a 5G indoor distributed pico-base station system, a base station may use multiple positioning technologies to position a terminal, for example, multiple radio frequency units in the base station may receive uplink positioning data from the terminal at the same air interface time, and transmit each uplink positioning data to a baseband unit of the base station, so that the baseband unit positions the terminal by analyzing all the uplink positioning data; at present, in this positioning process, a radio frequency combining mode is usually adopted to combine and transmit all uplink positioning data, and this mode can transmit all uplink positioning data to the baseband unit, but cannot distinguish the correspondence between each radio frequency unit and the uplink positioning data, thereby affecting the positioning accuracy of the terminal.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the invention provides a signal transmission method, signal transmission equipment and a computer readable storage medium, which can improve the positioning precision of a terminal.
In a first aspect, an embodiment of the present invention provides a signal transmission method, where the method includes:
acquiring a plurality of transmission information returned according to a time slot sequence in transmission time, wherein the plurality 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 time slot sequence;
combining all the transmission information to obtain return information formed by the positioning data;
the positioning data corresponding to the different transmission information is identified from the backtransmission information in time slot order.
In a second aspect, an embodiment of the present invention provides a signal transmission method, which is applied to a distributed pico-base station, where the distributed pico-base station includes a baseband unit, an extension unit, and multiple radio frequency units, and the method includes:
respectively acquiring transmission information returned by each radio frequency unit according to a time slot sequence through an expansion unit in 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 carries positioning data in different time slots after being returned according to the time slot sequence;
combining all the transmission information through the expansion unit to obtain return information formed by the positioning data;
and transmitting the return information to the baseband unit, so that the baseband unit identifies the positioning data of different radio frequency units from the return information according to the time slot sequence.
In a third aspect, an embodiment of the present invention further provides a signal transmission device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the signal transmission method of the first aspect as described above when executing the computer program.
In a fourth aspect, the embodiments of the present invention further provide a computer-readable storage medium, which stores computer-executable instructions for performing the signal transmission method of the first aspect as described above, or performing the signal transmission method of the second aspect as described above.
The embodiment of the invention comprises the following steps: acquiring a plurality of transmission information returned according to a time slot sequence in transmission time, wherein the plurality 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 time slot sequence; combining all the transmission information to obtain return information formed by the positioning data; the positioning data corresponding to the different transmission information is identified from the backtransmission information in time slot order. According to the scheme provided by the embodiment of the invention, a plurality of transmission information which are generated at the same air interface moment and returned according to the time slot sequence are obtained in the transmission time, and because different transmission information carries positioning data in different time slots after returning, after all the transmission information is combined to obtain the returned 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, 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, independent transmission positioning data is not needed, the positioning data subjected to combined processing cannot be distinguished easily, and the positioning precision of the terminal can be improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic diagram of a system architecture for performing a signal transmission method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a system architecture for performing a signal transmission method according to another embodiment of the present invention;
fig. 3 is a flowchart of a signal transmission method according to an embodiment of the present invention;
fig. 4 is a flowchart before transmission information from each rf unit is acquired by an extension unit in a signal transmission method according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating acquisition of transmission information from each rf unit in a signal transmission method according to an embodiment of the present invention;
fig. 6 is a flowchart before combining all transmission information by an extension unit in the signal transmission method according to an embodiment of the present invention;
fig. 7 is a flowchart before combining all transmission information by an extension unit in a signal transmission method according to another embodiment of the present invention;
fig. 8 is a schematic diagram of obtaining backhaul information in a signal transmission method according to an embodiment of the present invention;
fig. 9 is a schematic diagram of obtaining backhaul information in a signal transmission method according to another embodiment of the present invention;
fig. 10 is a flowchart of a signal transmission method according to another embodiment of the present invention;
fig. 11 is a flowchart of a signal transmission method according to an embodiment of the present invention before combining all transmission information;
fig. 12 is a flowchart of a signal transmission method according to an embodiment of the present invention before combining all transmission information;
fig. 13 is a flowchart of a signal transmission method according to an embodiment of the present invention before acquiring transmission information from each rf unit;
fig. 14 is a schematic diagram of a signal transmission device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that although functional blocks are partitioned in a schematic diagram of an apparatus and a logical order is shown in a flowchart, in some cases, the steps shown or described may be performed in a different order than the partitioning of blocks in the apparatus or the order in the flowchart.
The invention provides a signal transmission method, equipment and a computer readable storage medium thereof, which can realize the transmission of all positioning data generated at the same air interface moment by utilizing a transmission channel after combining all transmission information to obtain the return information formed by the positioning data by acquiring a plurality of transmission information generated at the same air interface moment and returned according to a time slot sequence in transmission time, can identify the positioning data corresponding to different transmission information generated at the same air interface moment from the return information according to the time slot sequence, does not need independent transmission positioning data, does not cause the positioning data subjected to combined processing to be difficult to distinguish and identify, and can improve the positioning precision of a terminal.
The embodiments of the present invention will be further explained with reference to the drawings.
As shown in fig. 1, fig. 1 is a schematic diagram of a system architecture 100 for performing a signal transmission method according to an embodiment of the present invention.
In the example of fig. 1, the system architecture 100 may be, but is not limited to, applied to a distributed pico-base station, where 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 (i.e., radio frequency Unit 1, radio frequency Unit 2 … radio frequency Unit n as shown in fig. 1), where the baseband Unit 130 (BBU) is a processing Unit in the distributed pico-base station architecture, and is used for receiving and identifying relevant uplink data signals in a base station to implement operations such as positioning a terminal; the Radio frequency Unit 110(Remote Radio Unit, RRU) has an open interface, and can match with an external signal to acquire and transmit a related uplink data signal, the Radio frequency Unit 110 and the baseband Unit 130 can be connected by an 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, in daily application, a multi-channel architecture composed of the baseband Unit 130 and multiple Radio frequency units 110 is adopted, so that the problem of indoor coverage in large and medium areas can be well solved, and more accurate terminal positioning in the large and medium areas is facilitated; the expansion unit 120(HUB) serves as a relay transmission unit, and is configured to couple the baseband unit 130 and each rf unit 110, and is mainly configured to summarize and combine uplink data signals from each rf unit 110. Through the cooperation among the baseband unit 130, the extension unit 120, and the plurality of rf units 110, signal transmission and resolution can be stably and reliably achieved, which is beneficial to improving 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 stations in a distributed pico-base station under various conditions, for example, when it is applied to each station in a 5G base station, each station can set up the corresponding system architecture 100 for signal transmission, and signal transmission between the stations can be kept normal without affecting each other, which is not limited in this embodiment.
In an embodiment, a plurality of extension units 120 may be provided in the distributed pico-base station, as shown in fig. 2, the number of extension units 120 is set to 3, each extension unit 120 is correspondingly connected to a plurality of radio frequency units 110 on one optical fiber (as in fig. 2, each radio frequency unit 110 is distinguished by a different number) to receive uplink data signals simultaneously returned by the plurality of radio frequency units 110 on the optical fiber, and different extension units 120 may be connected through a cascade interface, so that the uplink data signals combined by each extension unit 120 can be combined together again, that is, combined output signals corresponding to different extension units 120 may be superimposed, so that all uplink data signals can be combined and transmitted to the baseband unit 130.
In an embodiment, the frame structure in the distributed pico-base station to which the system architecture 100 is applied may be set by itself, and a good transmission environment is provided for signal transmission based on the content and the structure of the frame structure, for example, the subframe structure, the symbol ratio, and the like of the corresponding frame may be set based on a Time-division duplex (TDD) condition or a Frequency-division duplex (FDD) condition of a 5G base station, which is not limited in an embodiment.
In an embodiment, the positioning modes that the system architecture 100 can adapt to are not limited, for example, the positioning modes such as Round Trip Time (RTT), Downlink Time Difference Of Arrival (DL-TDOA) or Uplink Time Difference Of Arrival (UL-TDOA) may be adopted, and since the positioning modes are well known by those skilled in the art and do not belong to the main improvements Of the present invention, they are not described herein again.
In an embodiment, the type of the transmitted Signal is not limited, and for example, the Signal may be an uplink Sounding Reference Signal (SRS) Signal from the terminal, where the SRS Signal needs to be transmitted back on a frame structure of the base station, or may be a Signal that needs to be transmitted back similarly to the SRS Signal, which is not limited in this embodiment.
The baseband unit 130, the extension unit 120, and the rf unit 110 may respectively include a memory and a processor, wherein the memory and the processor may be connected by a bus or other means.
The memory, as a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory located remotely from the processor, and these remote memories may be connected to the processor through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The system architecture 100 and the application scenario described in the embodiment of the present invention are for more clearly illustrating the technical solution of the embodiment of the present invention, and do not constitute a limitation to the technical solution provided in the embodiment of the present invention, and it is known to those skilled in the art that along with the evolution of the system architecture 100 and the appearance of a new application scenario, the technical solution provided in the embodiment of the present invention is also applicable to similar technical problems.
It will be appreciated by those skilled in the art that the system architecture 100 shown in fig. 1 or 2 is not intended to limit embodiments of the present invention and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
In the system architecture 100 shown in fig. 1 or fig. 2, each unit can call its stored signal transmission program to execute the signal transmission method.
Based on the structure of the system architecture 100, various embodiments of a signal transmission method according to the present invention are proposed.
As shown in fig. 3, fig. 3 is a flowchart of a signal transmission method according to an embodiment of the present invention, which can be applied to the system architecture shown in fig. 1 or fig. 2, and the method includes, but is not limited to, steps S100 to S300.
Step S100, respectively acquiring transmission information from each radio frequency unit returned according to a time slot sequence through an extension unit in 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 carries positioning data at different time slots after being returned according to the time slot sequence;
in an embodiment, the transmission time may be set according to an actual condition that each rf unit sends the transmission information, for example, a time that all the rf units transmitting on the same optical fiber guarantee to transmit the transmission information at least once may be set as one transmission period, so the transmission time depends on the transmission period, and in an actual application, considering that a period, a structure, and the like of a frame structure in the base station are different, a channel header corresponding to each rf unit may also be different, so the transmission time may also be adaptively adjusted based on the above factors, which is not limited in this embodiment.
In an embodiment, the transmission information of different radio frequency units carries positioning data in different time slots after being returned according to the time slot sequence, that is, after a plurality of transmission information are returned respectively, the transmission information of the radio frequency unit can carry the positioning data in the corresponding preset time slot, and the transmission information can not carry the positioning data when being in other time slots, which is equivalent to that the positioning data transmitted under the time slot is "0", therefore, it can be understood that, because different transmission information carry the positioning data in different time slots after being returned, that is, equivalent to that each time slot in the transmission time after being returned has the positioning data to be transmitted, thereby ensuring that the extension unit obtains all the positioning data.
In an embodiment, the transmission information of the rf unit corresponds to a terminal, and specifically, referring to fig. 4, the step S100 further includes, but is not limited to, steps S400 to S500.
Step S400, a positioning signal from a terminal is obtained through a radio frequency unit, and the positioning signal carries positioning data;
step S500, the radio frequency unit is used for obtaining transmission information according to the positioning data.
In an embodiment, a positioning signal from a terminal is obtained through a radio frequency unit, and the positioning signal of the terminal carries positioning data, so that the positioning data corresponding to the terminal can be obtained through the radio frequency unit, and accordingly, transmission information obtained by the radio frequency unit based on the positioning data can represent characteristic information of the terminal, that is, the transmission information and the terminal have a corresponding relationship, so that the terminal can be positioned by uploading the transmission information.
The following example is given to illustrate the specific working principle of the above-described embodiment.
Example 1
It can be understood that the positioning signal of the terminal may be preconfigured in the frame structure of the base station, as shown in fig. 5, taking a TDD system in 5G as an example, the frame structure is cyclic and has multiple same subframes, the number of radio frequency units is multiple, the position of the terminal sending the SRS signal is on the SRS symbol of one subframe, accordingly, each radio frequency unit obtains the positioning data by confirming the SRS symbol of the terminal, and further can obtain transmission information according to the positioning data, and store the transmission information for being transmitted back to the relevant backhaul symbol position on the frame structure, S1, S2, S3 … Sn respectively represent the position symbols of the radio frequency unit 1, the radio frequency unit 2, and the radio frequency unit 3 …, which respectively store corresponding transmission information, and the backhaul symbol position is respectively adapted to each radio frequency unit, that is, the backhaul symbol position corresponds to the timeslot adapted by the radio frequency unit, because the corresponding symbol positions of different radio frequency units are different, when the rf units transmit the transmission information back, due to the time slot differentiation, the transmission information transmitted back by each rf unit will be locked at the corresponding back symbol position, i.e. S1, S2, S3 … Sn on another segment of the subframe shown in fig. 5, and accordingly, no transmission information will be transmitted back at the remaining symbol positions, i.e. 0 in fig. 5.
It can be understood that the backhaul symbol positions of the radio frequency units may be pre-allocated, that is, a corresponding relationship is established between the radio frequency units and the backhaul symbol positions, for example, all the radio frequency units are respectively numbered, and the backhaul symbol positions are allocated according to the numbers, or are set according to the radio frame number, the time slot, and the like in the frame structure, and the transmission information is conveniently and directly transmitted back to the pre-allocated backhaul symbol positions through the corresponding relationship.
It should be noted that the D/G in a segment of subframe shown in fig. 5 represents a downlink symbol or a GAP symbol, both of which do not occupy uplink backhaul resources in the TDD system, and the specific configuration of the D symbol or the GAP symbol may be set according to an actual frame application condition, which is not limited in this embodiment.
Step S200, combining all transmission information through an expansion unit to obtain return information formed by positioning data;
in an embodiment, because different transmission information carries the locating data in the different time slots after the passback, namely, every time slot in the transmission time after the passback has all the locating data to send, consequently merge all transmission information through the extension unit and be equivalent to and obtain all locating data according to the time slot in proper order promptly, and integrate all locating data through forming passback information, compare in the transmission information of independent transmission separately, utilize a transmission channel can realize the transmission of all locating data based on passback information, make more convenient and reliable when the uplink transmission.
In an embodiment, as shown in fig. 6, step S200 further includes, but is not limited to, step S600.
In step S600, all the transmission information is aligned by the extension unit.
It can be understood that, since all transmission information acquired by the extension unit may be acquired from different subframes on a frame structure, or since the transmission information is subject to variation during transmission, the situation that each transmission information is not adapted may occur, which is obviously not beneficial to the overall combination, and all transmission information are aligned by the extension unit, so that all transmission information can be set according to a time slot sequence, thereby facilitating the extension unit to acquire a set of stable and reliable transmission information, and ensuring that no error information occurs in the formed backhaul information, so as to avoid affecting the terminal positioning.
Further, as shown in fig. 7, in the case that the transmission information carries the header information of the associated frame, step S600 further includes, but is not limited to, step 610.
Step S610, aligning all the associated frame header information and all the transmission information by the extension unit.
In an embodiment, the associated frame header is located on the frame structure, and since the frame structure is recyclable, there may be multiple associated frame headers on the frame structure, when the radio frequency unit transmits the transmission information back to the corresponding return symbol position, the associated frame header corresponding to the radio frequency unit may be determined by the return symbol position, that is, different associated frame headers correspond to different radio frequency units, and since each radio frequency unit corresponds to its corresponding associated frame header information, all the associated frame header information may be aligned by the extension unit, and the transmission information carried on all the associated frame headers may be aligned, thereby ensuring that the formed return information does not have error information, so as to avoid affecting the positioning of the terminal.
In an embodiment, the manner of aligning the transmission information may also be set according to the actual situation of the transmission information, which is not limited in this embodiment.
In order to describe the operation principle of the above embodiments more specifically, specific examples are given below for explanation.
Example two
Referring to fig. 8, a frame structure of a base station takes a TDD single frame (DDDDDDSUU) with a period of 5ms as an example, and a special subframe S ratio is 6D symbols: 4 GAP symbols: 4 SRS symbols need to be returned in the positioning process, that is, the SRS symbols are positioning symbols sent by the terminal, the SRS symbols have a configured period of 40ms and a slot offset configuration of 7, and the terminal is configured to send on a symbol 10 (i.e., the 10 th symbol, the same applies below) of a special subframe S.
As shown in fig. 8, the SRS positioning symbol is configured on a symbol 10 of a 7 th slot (slot, which is denoted as slot7, the same applies hereinafter) in the special subframe S, and the terminal transmits the SRS positioning symbol at this position.
Then, 3 radio units respectively acquire an SRS positioning symbol from the symbol 10 at the same air interface time, and obtain transmission information corresponding to the SRS positioning symbol according to the positioning data carried in the SRS positioning symbol at the same air interface time, and store the transmission information at this position, that is, the SRS positioning symbol stored by the radio unit 1 is denoted as S1, and correspondingly, the SRS positioning symbol stored by the radio unit 2 is denoted as S2, and the SRS positioning symbol stored by the radio unit 3 is denoted as S3.
Then, according to the pre-allocated backhaul symbol position, backhaul is selected to be performed on the GAP symbol of slot17 on the current frame, that is, the transmission information of the radio unit 1 will be transmitted back to the first GAP symbol (symbol 6) on slot17, while no data (denoted as "0") will be transmitted back on symbol 7 and symbol 8, similarly, the transmission information of the radio unit 2 will be transmitted back to symbol 7 on slot17, while no data will be transmitted back on symbol 6 and symbol 8, and the transmission information of the radio unit 3 will be transmitted back to symbol 8 on slot17, while no data will be transmitted back on symbol 6 and symbol 7, thereby achieving sub-slot transmission of the transmission information.
Then, the extension unit merges all the transmission information to obtain the backhaul information formed by the positioning data, as can be seen from fig. 8, the backhaul information sequentially includes the transmission information S1, S2, and S3 corresponding to each radio frequency unit on the timeslot, so that all the transmission information can be merged by the extension unit to form the backhaul information, and all the positioning data are integrated on one transmission channel by using the backhaul information for transmission.
Example three
Referring to fig. 9, it is assumed that channel transmission from the radio frequency units to the extension units is mainly electrical interface transmission, and each radio frequency unit performs electrical interface packet packing according to its associated frame header and numbers all electrical interface packets, for example, the first packet is marked as electrical interface packet 0, and the following electrical interface packets are analogized; after the extension unit obtains all the electric interface packages, reading the electric interface packages according to the associated frame heads corresponding to the radio frequency units, aligning all the associated frame heads by aligning all the corresponding electric interface packages 0, and then combining data based on the alignment to obtain the return information carrying all the positioning data.
It should be noted that, in the above example, it is not uniquely determined to perform backhaul on the GAP symbol of slot17 on the current frame, for example, backhaul may also be set to perform backhaul at a time point of a downlink symbol according to different allocation manners, or backhaul may be determined to perform backhaul on a related symbol position in consideration of what symbol position the baseband unit is suitable for extracting transmission information when performing baseband processing, which is not limited in this embodiment.
Step S300, 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 an embodiment, the extension unit acquires transmission information generated by the radio frequency units at the same air interface moment and returned according to the time slot sequence within the transmission time, and since different transmission information carries positioning data at different time slots after returning, after the extension unit merges all transmission information to obtain returned 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 recognize the positioning data corresponding to different transmission information generated at the same air interface moment from the returned information according to the time slot sequence, without independent transmission positioning data, and the positioning data subjected to merging processing cannot be distinguished and recognized easily, so that the positioning accuracy of the terminal can be improved.
It can be understood that, compared with the prior art that each radio frequency unit receives and uploads the uplink data signal in turn according to time, in the embodiment of the present invention, each radio frequency unit receives and stores transmission information at the same time, and the positioning data is distinguished on the time slot to be transmitted back in a time-sharing manner, so that the influence caused by data change due to different time delays of the terminal can be reduced, thereby reducing the positioning error on the terminal.
Specifically, a detailed implementation based on the embodiment shown in fig. 8 refers to example four.
Example four
The extension unit transmits the backhaul 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 extracts the positioning data of the radio frequency unit 3 on the symbol 8 of the slot17, so that the baseband unit receives the positioning data received by each radio frequency unit at the same air interface moment, and therefore, subsequent positioning calculation can be performed based on all the acquired positioning data, and the terminal can be positioned according to the calculation result.
In addition, as shown in fig. 10, another embodiment of the present invention further provides a signal transmission method, which includes, but is not limited to, steps S700 to S900.
Step S700, acquiring a plurality of transmission information returned according to a time slot sequence in transmission time, wherein the plurality 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 time slot sequence;
step S800, combining all transmission information to obtain return information formed by positioning data;
step S900, identifying the positioning data corresponding to different transmission information from the feedback information according to the time slot sequence.
In an embodiment, a plurality of transmission information which is generated at the same air interface moment and is returned according to a time slot sequence is acquired in transmission time, and since different transmission information carries positioning data at different time slots after returning, after all transmission information is combined to obtain returned information formed by the positioning data, the transmission of all positioning data generated at the same air interface moment can be realized by using one transmission channel, and 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, so that independent transmission positioning data is not needed, and the positioning data subjected to combined processing cannot be distinguished and identified easily, thereby improving the positioning accuracy of the terminal.
As shown in fig. 11, step S800 further includes, but is not limited to, step S1000.
Step S1000, aligning all transmission information.
In an embodiment, since all the acquired transmission information may be acquired from different subframes on a frame structure, or since the transmission information is subject to variation during transmission, the situation that each transmission information is not adapted may occur, which is obviously disadvantageous to the overall combination, and by aligning all the transmission information, all the transmission information can be respectively set according to a time slot sequence, thereby facilitating to acquire a stable and reliable set of transmission information, and ensuring that the formed backhaul information does not have error information, so as to avoid affecting terminal positioning.
Further, as shown in fig. 12, in the case that the transmission information carries the header information of the associated frame, step S1000 further includes, but is not limited to, step 1100.
Step S1100 aligns all transmission information by aligning all header information of the associated header.
In an embodiment, the transmission information carried on all the associated frame headers can be aligned by aligning all the associated frame header information, so that it can be ensured that the formed return information has no error information, and the influence on the terminal positioning is avoided.
As shown in fig. 13, step S700 further includes, but is not limited to, steps S1200 to S1300.
Step S1200, acquiring a positioning signal from a terminal, wherein the positioning signal carries positioning data;
and step S1300, obtaining the transmission information according to the positioning data.
In an embodiment, by acquiring 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 acquired through the positioning signal, and accordingly, the transmission information obtained based on the positioning data can represent the characteristic information of the terminal, that is, the transmission information and the terminal have a corresponding relationship, so that the terminal can be positioned by uploading the transmission information.
It should be noted that, since the signal transmission method in each embodiment 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 each embodiment may refer to the specific implementation of the signal transmission method applied to the system architecture, and in order to avoid redundancy, the specific implementation of the signal transmission method in each embodiment is not described herein again.
In addition, as shown in fig. 14, an embodiment of the present invention also provides a signal transmission apparatus 200, the signal transmission apparatus 200 including: memory 210, processor 220, and computer programs stored on memory 210 and executable on processor 220.
The processor 220 and the memory 210 may be connected by a bus or other means.
It should be noted that the signal transmission device 200 in this embodiment may be applied to a system architecture in the embodiments shown in fig. 1 or fig. 2, the signal transmission device 200 in this embodiment can form a part of the system architecture in the embodiments shown in fig. 1 or fig. 2, and these embodiments all belong to the same inventive concept, so these embodiments have the same implementation principle and technical effect, and are not described in detail here.
Non-transitory software programs and instructions necessary to implement the signal transmission method of the above-described embodiment are stored in the memory 210, and when executed by the processor 220, perform the signal transmission method of the above-described embodiment, for example, perform the method steps S100 to S300 in fig. 3, the method steps S400 to S500 in fig. 4, the method step S600 in fig. 6, the method step S610 in fig. 7, the method steps S700 to S900 in fig. 10, the method step S1000 in fig. 11, the method step S1100 in fig. 12, or the method steps S1200 to S1300 in fig. 13 described above.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, which stores computer-executable instructions, which are executed by a processor 220 or a controller, for example, by a processor 220 in the above-mentioned apparatus embodiment, and can make the above-mentioned processor 220 execute the signal transmission method in the above-mentioned embodiment, for example, execute the above-mentioned method steps S100 to S300 in fig. 3, 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, method step S1100 in fig. 12, or method steps S1200 to S1300 in fig. 13.
It will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.
Claims (10)
1. A method of signal transmission, the method comprising:
acquiring a plurality of transmission information returned according to a time slot sequence in transmission time, wherein the plurality of transmission information are generated at the same air interface moment, and different time slots of the different transmission information after being returned according to the time slot sequence carry positioning data;
combining all the transmission information to obtain return information formed by the positioning data;
identifying, from the backtransmission information, positioning data corresponding to different ones of the transmission information in time slot order.
2. The signal transmission method according to claim 1, wherein before said combining all of said transmission information, said method further comprises:
and aligning all the transmission information.
3. The signal transmission method according to claim 2, wherein the transmission information further carries a header information of a channel associated frame, and the aligning all the transmission information comprises:
aligning all the transmission information by aligning all the associated frame header information.
4. The signal transmission method according to claim 1, wherein before acquiring the plurality of transmission information returned in the time slot order within the transmission time, the method further comprises:
acquiring a positioning signal from a terminal, wherein the positioning signal carries the positioning data;
and obtaining the transmission information according to the positioning data.
5. A signal transmission method is applied to a distributed pico-base station, wherein the distributed pico-base station comprises a baseband unit, an extension unit and a plurality of radio frequency units, and the method comprises the following steps:
respectively acquiring transmission information returned by each radio frequency unit according to a time slot sequence through the expansion unit in 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 carries positioning data in different time slots after being returned according to the time slot sequence;
merging all the transmission information through the expansion unit to obtain return information formed by the positioning data;
and transmitting the return information to the baseband unit, so that the baseband unit identifies the positioning data of different radio frequency units from the return information according to the time slot sequence.
6. The signal transmission method according to claim 5, wherein before said combining all of said transmission information by said extension unit, said method further comprises:
aligning all the transmission information by the extension unit.
7. The signal transmission method according to claim 6, wherein the transmission information further carries associated frame header information, and the aligning, by the extension unit, all the transmission information comprises:
aligning all the associated frame header information and all the transmission information by the extension unit.
8. The signal transmission method according to claim 5, wherein before the transmission information returned from each of the rf units in the time slot order is obtained by the extension unit during the transmission time, the method further comprises:
acquiring a positioning signal from a terminal through the radio frequency unit, wherein the positioning signal carries the positioning data;
and obtaining the transmission information by utilizing the radio frequency unit according to the positioning data.
9. A signal transmission device comprising: memory, processor and computer program stored on the memory and executable on the processor, characterized in that the processor implements the signal transmission method according to any of claims 1 to 4 when executing the computer program.
10. A computer-readable storage medium storing computer-executable instructions for performing the signal transmission method of any one of claims 1 to 4, or performing the signal transmission method of any one of claims 5 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110229288.XA CN115002896A (en) | 2021-03-02 | 2021-03-02 | Signal transmission method, signal transmission device, and computer-readable storage medium |
| PCT/CN2021/133202 WO2022183788A1 (en) | 2021-03-02 | 2021-11-25 | Signal transmission method and device, and computer-readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110229288.XA CN115002896A (en) | 2021-03-02 | 2021-03-02 | Signal transmission method, signal transmission device, and computer-readable storage medium |
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| CN115002896A true CN115002896A (en) | 2022-09-02 |
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| CN202110229288.XA Pending CN115002896A (en) | 2021-03-02 | 2021-03-02 | Signal transmission method, signal transmission device, and computer-readable storage medium |
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| Country | Link |
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| WO (1) | WO2022183788A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108391311B (en) * | 2018-01-09 | 2020-11-03 | 北京智联安科技有限公司 | NB-IoT equipment positioning method and device |
| CN110161545B (en) * | 2018-02-12 | 2022-04-15 | 清华大学 | Positioning system and positioning signal generation method thereof |
| CN109922425B (en) * | 2019-02-20 | 2020-12-25 | 清华珠三角研究院 | Method and device for determining positioning area |
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