CN111435895A

CN111435895A - Signal transmission method and apparatus, waveform determination method and apparatus, and storage medium

Info

Publication number: CN111435895A
Application number: CN201910028695.7A
Authority: CN
Inventors: 邢卫民; 卢有雄; 黄双红
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2019-01-11
Filing date: 2019-01-11
Publication date: 2020-07-21

Abstract

The present disclosure provides a signal transmission method and apparatus, a waveform determination method and apparatus, and a storage medium, wherein the method includes: determining a target parameter value of a target parameter corresponding to a target waveform, wherein the target parameter is used for generating a synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal; generating a target synchronous signal according to the target parameter value; and transmitting the generated target synchronous signal by using the target waveform. By the method and the device, the problem that the UE cannot accurately know which waveform is used for signal transmission in the related technology is solved, and the effect of improving the waveform acquisition accuracy is achieved.

Description

Signal transmission method and apparatus, waveform determination method and apparatus, and storage medium

Technical Field

The present disclosure relates to the field of communications, and in particular, to a signal transmission method and apparatus, a waveform determination method and apparatus, and a storage medium.

Background

In a Sidelink (also called bypass) communication system, when there is a service to be transmitted between UEs (User Equipment, User terminal), the service data between the UEs is directly transmitted to a target UE through a destination Sidelink by a data source UE without being forwarded by a network side. Fig. 1 is a schematic diagram of an edge link communication structure according to the related art. As shown in fig. 1, traffic data between UE1 and UE2 is transmitted via the side link without forwarding on the network side.

In the Sidelink communication, the UE obtains a resource from a configured or preconfigured resource pool (resource pool) and transmits the resource. The acquisition of resources can take two basic forms: a scheme for resource allocation that may be used by a base station to allocate sildenk resources, i.e., based on scheduling; the other is that the UE autonomously selects resources for communication, i.e. based on an autonomously acquired resource scheme.

The synchronization process is required before the Sidelink UE performs communication, and the synchronization process requires the UE to perform transmission and reception of the Sidelink synchronization information. The synchronization information is typically carried in synchronization signals and broadcast channels, including: PSSS (primary receive Synchronization Signal), SSSS (Secondary receive Synchronization Signal), PSBCH (Physical receive broadcast channel), and DMRS (Demodulation reference Signal) corresponding to PSBCH, and these signals and channels used for Synchronization are collectively referred to as a Synchronization Signal.

The NR (New Radio ) synchronization signal is transmitted using one or more SS/PBCH (synchronization signal/Physical Broadcast Channel) blocks, referred to as synchronization signal blocks. The method also comprises the following steps for the synchronous signal block of bypass communication: PSSS, SSSS, PSBCH and DMRS corresponding to the PSBCH. The synchronization signal block, SS/PBCH block and synchronization signal have equivalent concepts.

The structure of a synchronization signal transmitted in a synchronization process of a conventional L TE (L ong-Term Evolution, long Term Evolution) bypass communication is shown in fig. 2, where GP is a guard interval and no signal is transmitted, and in addition, a signal carrying higher layer information is generally referred to as a physical layer channel, e.g., PSBCH, and others are referred to as reference signals, e.g., PSSS, SSSS, DMRS, etc.

With the increasing demand for direct internet of vehicles communication, which necessarily requires the Sidelink to support more types of services and have better performance, the internet of vehicles technology based on the 5G (the 5th Generation mobile communication technology) NR will be an important development direction for future Sidelink communication. In the 5G NR, a CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) waveform is used for the downlink of the base station, and the synchronization information is also transmitted by the base station using the CP-OFDM. And the uplink of the UE may use CP-OFDM or SC-FDMA (Single carrier-Frequency Division Multiple Access) waveform.

SC-FDMA waveforms have some single carrier characteristics, and SC-FDMA is also called DFT-S-FDMA (Discrete Fourier Transform-Spread FDMA, Discrete Fourier Transform Spread-spectrum FDMA) waveforms in one implementation, i.e., DFT spreading (Transform precoding, also called in the protocol) is performed when generating signals using the waveforms, so that PAPR (Peak to Average Power Ratio) of the signals is reduced; when a signal is generated using a CP-OFDM waveform, DFT (transform coding) is not performed on the signal. Wherein the UE specifically uses which waveform is controlled by the base station. The UE may use two waveforms on the Sidelink, and it is necessary for the transmitting UE to decide which waveform to use at the time of transmission (especially at the time of transmission of the synchronization signal). Similarly, the UE needs to know which waveform to use to receive the signal, especially the signal corresponding to the synchronization information.

A typical scenario is: the waveforms used by UEs in the coverage of the base station on the Sidelink are configured by the base station, and the UEs outside the coverage cannot know which waveform is used through the configuration information in the coverage, or the UEs outside the coverage may use the preconfigured waveform, but the preconfigured waveform is not necessarily the same as the waveform configured by the base station in the coverage, and at this time, the receiving UE also needs to be able to distinguish which waveform is a received synchronization signal to complete the subsequent reception.

Therefore, the related art has a problem that the UE cannot accurately know what waveform is used for signal transmission.

Disclosure of Invention

The embodiment of the disclosure provides a signal sending method and device, a waveform determining method and device, and a storage medium, so as to at least solve the problem that in the related art, a UE cannot accurately know which waveform is used for signal transmission.

According to an embodiment of the present disclosure, there is provided a signal transmission method including: determining a target parameter value of a target parameter corresponding to a target waveform, wherein the target parameter is used for determining a synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal; determining a target synchronous signal according to the target parameter value; and transmitting the target synchronous signal by using the target waveform.

Optionally, determining the target parameter value of the target parameter corresponding to the target waveform comprises: and selecting the target parameter value from a target parameter value set of the target parameter corresponding to the target waveform, wherein one parameter value set of the target parameter corresponds to a waveform for transmitting the synchronous signal, and the target parameter value set corresponds to the target waveform.

Optionally, the selecting the target parameter value from the target parameter value set of the target parameter corresponding to the target waveform includes: selecting a target sequence from a target sequence set of the target signal when the target parameter is a sequence used by the target signal, wherein the target signal is a sequence-based signal in the synchronization signal, one sequence set of the target signal corresponds to a waveform for transmitting the synchronization signal, the target sequence set corresponds to the target waveform, and the target parameter value is the target sequence; or, in a case that the target parameter is a target identifier corresponding to a sequence used by a target signal, selecting a target identifier value from a target identifier value set of the target identifier, where the target signal is a sequence-based signal in the synchronization signal, one identifier value set of the target identifier corresponds to a waveform used for transmitting the synchronization signal, the target identifier value set corresponds to the target waveform, and the target parameter value is the target identifier value.

Optionally, determining the target synchronization signal according to the target parameter value includes: under the condition that the target parameter and the target identifier corresponding to the sequence used by the target signal, determining a target sequence used by the target signal according to the target identifier value; and determining the target synchronous signal according to the target sequence used by the target signal.

Optionally, the target signal comprises at least one of: the method comprises the steps of bypassing a primary synchronization signal PSSS, bypassing a secondary synchronization signal SSSS and demodulating a reference signal DMRS.

Optionally, determining the target parameter value of the target parameter corresponding to the target waveform comprises: and determining a target structure parameter value of the structure parameter corresponding to the target waveform when the target parameter is a structure parameter of the synchronization signal, wherein the structure parameter is used for indicating the number and/or position of at least one partial occupation symbol included in the synchronization signal, or is used for indicating the relative position of at least two partial occupation symbols included in the synchronization signal, and the target parameter value is the target structure parameter value.

Optionally, before determining the target parameter value of the target parameter corresponding to the target waveform, determining the target waveform according to configuration or preconfiguration of a network side; or determining the target waveform according to the detected waveforms used by other sending ends, wherein the other sending ends are sending ends except the sending end.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

According to another embodiment of the present disclosure, there is provided a signal transmission method including: determining a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal; and transmitting a target synchronous signal by using the target waveform according to the target transmission parameter value.

Optionally, determining the target transmission parameter value of the target transmission parameter corresponding to the target waveform comprises: selecting the target transmission parameter value from a target transmission parameter value set of the target transmission parameter corresponding to the target waveform, wherein one transmission parameter value set of the target transmission parameter corresponds to a waveform for transmitting the synchronization signal, and the target transmission parameter value set corresponds to the target waveform.

Optionally, selecting the target transmission parameter value from the target transmission parameter value set of the target transmission parameter corresponding to the target waveform includes: under the condition that the target sending parameter is a synchronous grid, one or more target synchronous grids are selected from a target synchronous grid set of the synchronous grids, wherein the synchronous grid is a frequency point position used for sending the synchronous signal, one synchronous grid set of the synchronous grids corresponds to a waveform used for sending the synchronous signal, the target synchronous grid set corresponds to the target waveform, and the target sending parameter value is the one or more target synchronous grids; or, under the condition that the target sending parameter is a channel number corresponding to a synchronization grid, one or more target channel numbers are selected from a target channel number set of the channel numbers, wherein the synchronization grid is a frequency point position used for sending the synchronization signal, one channel number set of the channel numbers corresponds to a waveform used for sending the synchronization signal, the target channel number set corresponds to the target waveform, and the target sending parameter value is the one or more target channel numbers.

Optionally, the transmitting a target synchronization signal using the target waveform according to the target transmission parameter value includes: determining one or more target synchronization grids corresponding to the one or more target channel numbers under the condition that the target sending parameter is the channel number corresponding to the synchronization grid; transmitting a target synchronization signal with the target waveform using the one or more target synchronization grids.

Optionally, before determining the target sending parameter value of the target sending parameter corresponding to the target waveform, determining the target waveform according to configuration or preconfiguration of a network side; or determining the target waveform according to the detected waveforms used by other sending ends, wherein the other sending ends are sending ends except the sending end.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

According to still another embodiment of the present disclosure, there is provided a waveform determining method including: detecting a target parameter value of a target parameter of a target synchronization signal transmitted by a transmitting end, wherein the target parameter is used for determining the synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal; and determining a target waveform used by the sending end for sending the target synchronization signal according to the target parameter value.

Optionally, the detecting the target parameter value of the target parameter of the target synchronization signal sent by the sending end includes: detecting the target signal when the target parameter is a sequence used by the target signal, wherein the target signal is a sequence-based signal in the synchronization signal; determining a target sequence used by the target signal, wherein the target parameter value is the target sequence; or, in the case that the target parameter is a target identifier corresponding to a sequence used by a target signal, detecting the target signal, where the target signal is a sequence-based signal in the synchronization signal; determining a target sequence used by the target signal; determining a target identification value of the target identification according to the target sequence, wherein the target parameter value is the target identification value; or, in a case that the target parameter is a structure parameter of the synchronization signal, detecting a target structure parameter value of the target synchronization signal, where the structure parameter is used to indicate a number and/or a position of at least one partially occupied symbol included in the synchronization signal, the target structure parameter value is used to indicate a target number and/or a target position of the at least one partially occupied symbol included in the target synchronization signal, and the target parameter value is the target structure parameter value; or, in a case that the target parameter is a structural parameter of the synchronization signal, detecting a target structural parameter value of the target synchronization signal, where the structural parameter is used to indicate relative positions of at least two partial occupancy symbols included in the synchronization signal, the target structural parameter value is used to indicate a target relative position of the at least two partial occupancy symbols included in the target synchronization signal, and the target parameter value is the target structural parameter value.

Optionally, determining, according to the target parameter value, a target waveform used by the transmitting end to transmit the target synchronization signal includes: determining a target parameter value set in which the target parameter value is located, wherein one parameter value set of the target parameter corresponds to a waveform used for transmitting the synchronization signal, and the target parameter value set corresponds to the target waveform; and determining a target waveform used by the transmitting end for transmitting the target synchronization signal according to the target parameter value set.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform. .

According to still another embodiment of the present disclosure, there is provided a waveform determining method including: detecting a target synchronization signal sent by a sending end; determining a target transmission parameter value of a target transmission parameter of the target synchronization signal transmitted by the transmitting end, wherein the target transmission parameter is used for transmitting the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal; and determining a target waveform used by the sending end for sending the target synchronization signal according to the target sending parameter value.

Optionally, determining the target transmission parameter value of the target transmission parameter for the transmitting end to transmit the target synchronization signal includes: determining one or more target synchronous grids used by the sending end for sending the target synchronous signals under the condition that the target sending parameters are synchronous grids, wherein the synchronous grids are frequency point positions used for sending the synchronous signals, and the target sending parameter values are the one or more target synchronous grids; or, under the condition that the target sending parameter is a channel number corresponding to a synchronization grid, determining one or more target channel numbers used by the sending end to send the target synchronization signal, wherein the synchronization grid is a frequency point position used to send the synchronization signal, and the target sending parameter value is the one or more target channel numbers.

Optionally, determining, according to the target transmission parameter value, the target waveform used by the transmitting end to transmit the target synchronization signal includes: determining a target transmission parameter value set in which the target transmission parameter value is located, wherein one parameter value set of the target transmission parameter corresponds to a waveform used for transmitting the synchronization signal, and the target transmission parameter value set corresponds to the target waveform; and determining a target waveform used by the transmitting end for transmitting the target synchronization signal according to the target transmission parameter value set.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

According to still another embodiment of the present disclosure, there is provided a signal transmission apparatus including: a first determining module, configured to determine a target parameter value of a target parameter corresponding to a target waveform, wherein the target parameter is used to determine a synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal; the second determining module is used for determining a target synchronous signal according to the target parameter value; and the sending module is used for sending the target synchronization signal by using the target waveform.

According to still another embodiment of the present disclosure, there is provided a signal transmission apparatus including: a determining module, configured to determine a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal; and the sending module is used for sending the target synchronous signal by using the target waveform according to the target sending parameter value.

According to still another embodiment of the present disclosure, there is provided a waveform determining apparatus including: the device comprises a detection module, a processing module and a control module, wherein the detection module is used for detecting target parameter values of target parameters of target synchronization signals transmitted by a transmitting end, the target parameters are used for determining the synchronization signals, and one or more parameter values of the target parameters correspond to a waveform used for transmitting the synchronization signals; and the determining module is used for determining a target waveform used by the sending end for sending the target synchronization signal according to the target parameter value.

According to still another embodiment of the present disclosure, there is provided a waveform determining apparatus including: the detection module is used for detecting a target synchronization signal sent by a sending end; a first determining module, configured to determine a target transmission parameter value of a target transmission parameter for the transmitting end to transmit the target synchronization signal, where the target transmission parameter is used to transmit the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used to transmit the synchronization signal; and the second determining module is used for determining a target waveform used by the sending end for sending the target synchronization signal according to the target sending parameter value.

According to still another embodiment of the present disclosure, there is provided a bypass communication system including a first UE including the above-described signal transmission apparatus and a second UE including the above-described waveform determination method.

According to a further embodiment of the present disclosure, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.

According to yet another embodiment of the present disclosure, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any one of the above method embodiments.

According to the method, in the bypass communication system, for a sending end, a target parameter value used for determining a target parameter of a synchronous signal is determined according to a waveform (target waveform) to be used, the target synchronous signal is determined according to the target parameter value, and the target synchronous signal is sent in the target waveform; for the receiving end, after the target parameter value of the target parameter is detected, the target waveform used for sending the target synchronization signal sent by the UE can be determined based on the target parameter value, and the waveform can be accurately obtained due to the fact that the waveform is determined by using the corresponding relation between the parameter value of the target parameter and the waveform, so that the problem that the UE cannot accurately know which waveform is used for signal transmission in the related technology can be solved, and the effect of improving waveform obtaining accuracy is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a schematic diagram of an edge link communication structure according to the related art;

fig. 2 is a schematic diagram of an alternative structure of a synchronization signal according to the related art;

fig. 3 is a block diagram of a hardware structure of a mobile terminal of a signal transmission method according to an embodiment of the present disclosure;

fig. 4 is a flow chart of an alternative signaling method according to an embodiment of the present disclosure;

fig. 5 is a flow chart of another alternative signaling method according to an embodiment of the present disclosure;

FIG. 6 is a flow chart of an alternative waveform determination method according to an embodiment of the present disclosure;

FIG. 7 is a flow chart of another alternative waveform determination method according to an embodiment of the present disclosure;

FIG. 8 is a block diagram of an alternative signaling device according to an embodiment of the present disclosure;

FIG. 9 is a block diagram of an alternative signaling device according to an embodiment of the present disclosure;

FIG. 10 is a block diagram of an alternative waveform determining apparatus according to an embodiment of the present disclosure;

FIG. 11 is a block diagram of an alternative waveform determining apparatus according to an embodiment of the present disclosure;

fig. 12 is a schematic diagram of an alternative bypass communication system according to an embodiment of the present disclosure.

Detailed Description

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Example 1

The method provided by the first embodiment of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking the mobile terminal as an example, fig. 3 is a block diagram of a hardware structure of the mobile terminal of a signal transmission method according to an embodiment of the present disclosure. As shown in fig. 3, the mobile terminal 30 may include one or more (only one shown in fig. 3) processors 302 (the processor 302 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 304 for storing data, and optionally a transmission device 306 for communication functions and an input-output device 308. It will be understood by those skilled in the art that the structure shown in fig. 3 is only an illustration, and does not limit the structure of the mobile terminal. For example, the mobile terminal 30 may also include more or fewer components than shown in FIG. 3, or have a different configuration than shown in FIG. 3.

The memory 304 may be used for storing computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the signal transmission method in the embodiment of the present disclosure, and the processor 302 executes various functional applications and data processing by running the computer programs stored in the memory 304, that is, implementing the above-mentioned methods. The memory 304 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 304 may further include memory located remotely from the processor 302, which may be connected to the mobile terminal 30 via 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 transmission device 306 is used for receiving or sending data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal 30. In one example, the transmission device 306 includes a NIC (Network Interface Controller) that can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 306 can be a Radio Frequency (RF) module, which is used to communicate with the internet in a wireless manner.

In this embodiment, a signal transmission method operating in the mobile terminal is provided, and fig. 4 is a flowchart of an alternative signal transmission method according to an embodiment of the present disclosure, and as shown in fig. 4, the flowchart includes the following steps:

step S402, determining target parameter values of target parameters corresponding to target waveforms, wherein the target parameters are used for determining synchronous signals, and one or more parameter values of the target parameters correspond to one waveform used for sending the synchronous signals;

step S404, determining a target synchronous signal according to the target parameter value;

in step S406, the target synchronization signal is transmitted using the target waveform.

Through the steps, the sending end determines a target parameter value of a target parameter corresponding to a target waveform, wherein the target parameter is used for determining a synchronous signal, and one or more parameter values of the target parameter correspond to a waveform used for sending the synchronous signal; determining a target synchronous signal according to the target parameter value; the target waveform is used for sending the target synchronous signal, so that the problem that the UE cannot accurately know which waveform is used for signal transmission in the related technology is solved, and the accuracy of waveform acquisition is improved.

Optionally, the main body of the above steps may be, but is not limited to, a sending UE in a bypass communication system, and the like.

Alternatively, the signal transmission method may be applied to a scenario in which a data source UE (transmitting end, transmitting UE) transmits a signal (synchronization signal, traffic data, etc.) through a side link in a bypass communication system, and the transmission mode may be broadcast.

In a bypass communication system, one waveform (waveform) for transmitting a synchronization signal may include the following two types: CP-OFDM waveforms and SC-FDMA waveforms (which may be used to transmit other signals as well).

Prior to step S402, the transmitting end may determine a waveform (i.e., a target waveform) to be used for transmitting a signal (e.g., a synchronization signal). There may be a plurality of ways of determining, which may include but is not limited to at least one of:

the first method is as follows: determining (suitable for UE in coverage of a base station) according to configuration of a network side (for example, the base station);

the second method comprises the following steps: determining according to a pre-configuration (applicable to UEs within coverage of the base station and UEs out of coverage);

the third method comprises the following steps: and according to the detected waveform used by other devices, wherein the other devices are devices except the sending end.

The target waveform determined by the first method is: and (3) waveforms configured on the network side. The target waveform determined by the second method is: a preconfigured waveform. The target waveform determined by the third method is: waveforms used by other devices (e.g., waveforms used by synchronization signals transmitted by other devices).

All other devices herein take other UEs as examples below, but the present disclosure is not limited to UEs, and other devices or transmitting ends may also be: base stations or special types of equipment, such as RSUs (road side units); the group leader or leader of a UE group, for example, if the UE belongs to a certain UE group, may determine the target waveform according to the waveform used by the group leader or leader.

After determining the target waveform, the transmitting end may determine a target parameter value of a target parameter corresponding to the target waveform.

It should be noted that the parameter value of the target parameter is a possible case of the target parameter, and may be a specific value, a specific sequence, a specific configuration, and the like, and the specific form of the parameter value may be set as needed, which is not limited specifically.

The target parameter is used to determine the synchronization Signal, and may be a parameter corresponding to the content of the component of the synchronization Signal, for example, a sequence used by PSSS/SSSS, a S L SS (sidelink synchronization Signal) ID corresponding to the sequence used by PSSS/SSSS, a sequence corresponding to DMRS, or a parameter corresponding to the structure of the synchronization Signal, for example, the number of symbols occupied by PSSS/SSSS, the positions of occupied symbols, and the relative positions of symbols occupied by PSSS and SSSS.

The target parameter may have a plurality of parameter values, the number of parameter values being greater than or equal to the number of waveforms used to transmit the synchronization signal. For one parameter value of the target parameter, the parameter value may correspond to only one waveform. For multiple parameter values of the target parameter, the multiple parameter values may correspond to the same waveform, or different waveforms may be applied. The correspondence between the parameter values of the target parameters and the waveforms may be a one-to-one correspondence or a many-to-one correspondence.

For a one-to-one correspondence, after the target waveform is determined, a target parameter value corresponding to the target waveform may be determined based on the correspondence of the parameter value to the waveform.

Optionally, determining a target parameter value of the target parameter corresponding to the target waveform comprises: and under the condition that the target parameter is a structural parameter of the synchronous signal, determining a target structural parameter value of the structural parameter corresponding to the target waveform, wherein the structural parameter is used for indicating the number and/or the position of at least one partial occupation symbol contained in the synchronous signal, or is used for indicating the relative position of at least two partial occupation symbols contained in the synchronous signal, and the target structural parameter value is the target structural parameter value.

After determining the target structure parameter value, the sending end may determine a target synchronization signal (synchronization signal block) according to the target structure parameter value.

For many-to-one relationships, the parameter values corresponding to the same waveform may be treated as a set or group.

One or more parameter values of the target parameter may be included in the set of parameter values (also referred to as a parameter value set) of the target parameter.

Determining the target parameter value may be: determining a target parameter value set corresponding to the target waveform; one parameter value is selected as a target parameter value from one or more parameter values included in the target parameter value set. In the case where there are a plurality of target parameter values, a plurality of parameter values may be selected as the target parameter value from one or more parameter values included in the target parameter value set.

The synchronization signal may contain one or more sequence-based signals (PSSS, SSSS, DMRS, etc.) or channels (some physical layer control channels), the sequence-based signals or channels may be used for all waveforms (both for CP-OFDM and SC-FDMA waveforms), the sequences used by the sequence-based signals or channels, or the target identifiers (e.g., SS L S ID) corresponding to the sequences used by the sequence-based signals or channels may be used as target parameters.

As an optional implementation manner, selecting a target parameter value from a target parameter value set of a target parameter corresponding to a target waveform includes: when the target parameter is a sequence used by a target signal, selecting the target sequence from a target sequence set of the target signal, wherein the target signal is a signal based on the sequence in the synchronous signal, one sequence set of the target signal corresponds to a waveform for transmitting the synchronous signal, the target sequence set corresponds to the target waveform, and the target parameter value is the target sequence.

The target signal may be one signal based on the sequence or a combination of signals based on the sequence. Optionally, the target signal may comprise at least one of: PSSS, SSSS, DMRS.

After the target sequence is picked, the target sequence (possibly in combination with parameter values of other parameters) may be used to determine a target synchronization signal (synchronization signal block).

As another optional implementation manner, in a case that the target parameter is a target identifier corresponding to a sequence used by the target signal, a target identifier value is selected from a target identifier value set of the target identifier, where the target signal is a sequence-based signal in the synchronization signal, one identifier value set of the target identifier corresponds to one waveform used for transmitting the synchronization signal, the target identifier value set corresponds to the target waveform, and the target parameter value is the target identifier value.

The target signal may be one signal based on the sequence or a combination of signals based on the sequence. Optionally, the target signal may comprise at least one of: PSSS, SSSS, DMRS. For a scenario of combination of multiple signals, a target identification value may be obtained based on multiple sequences used by the multiple signals, and a sequence used by each signal may be determined by the target identification value.

Optionally, after the target identification value is selected, the sending end may determine a target sequence used by the target signal according to the target identification value; the target synchronization signal (synchronization signal block) is determined based on the target sequence used by the target signal.

It should be noted that, no matter what waveform is used by the physical layer channel, the target signals (e.g., PSSS and SSSS) can be designed uniformly.

After determining the target synchronization signal, the transmitting end may transmit the target synchronization signal using the target waveform.

In this embodiment, a signal sending method operating in the mobile terminal is further provided, and fig. 5 is a flowchart of another optional signal sending method according to the embodiment of the present disclosure, as shown in fig. 5, the flowchart includes the following steps:

step S502, determining a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

step S504, according to the target sending parameter value, the target synchronization signal is sent by using the target waveform.

Through the above steps, the transmitting end determines a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal; according to the target sending parameter value, the target waveform is used for sending the target synchronous signal, the problem that UE (user equipment) cannot accurately know which waveform is used for signal transmission in the related technology is solved, and the accuracy of waveform acquisition is improved.

Alternatively, the signal transmission method may be applied to a scenario in which a data source UE transmits a signal to a target UE through a side link in a bypass communication system.

Prior to step S502, the transmitting end may determine a waveform (i.e., a target waveform) to be used for transmitting a signal (e.g., a synchronization signal). The target waveform and the determination method of the target waveform are similar to those described above, and are not described herein again.

After determining the target waveform, the transmitting end may determine a target transmission parameter value of a target transmission parameter corresponding to the target waveform.

It should be noted that the parameter value of the target transmission parameter is a possible case of the target transmission parameter, and may be a specific value, a specific sequence, a specific configuration, and the like, and the specific form of the parameter value of the target transmission parameter may be set according to needs, which is not limited specifically.

The target transmission parameter is used for transmitting the synchronization signal, and may be a parameter corresponding to a time-frequency domain resource for transmitting the synchronization signal, for example, a synchronization trellis.

The target transmission parameter may have a plurality of parameter values, the number of parameter values being greater than or equal to the number of waveforms used to transmit the synchronization signal. For one parameter value of the target transmission parameter, the parameter value may, and may only, correspond to one waveform. For multiple parameter values of the target transmission parameter, the multiple parameter values may correspond to the same waveform or may correspond to different waveforms. The correspondence between the parameter values of the target transmission parameters and the waveforms may be a one-to-one correspondence or a many-to-one correspondence.

For the one-to-one correspondence, after the target waveform is determined, a target transmission parameter value corresponding to the target waveform may be determined based on a correspondence of a parameter value of the target transmission parameter to the waveform.

Optionally, determining a target transmission parameter value of a target transmission parameter corresponding to the target waveform comprises: and selecting a target transmission parameter value from a target transmission parameter value set of the target transmission parameter corresponding to the target waveform, wherein one transmission parameter value set of the target transmission parameter corresponds to a waveform for transmitting the synchronous signal, and the target transmission parameter value set corresponds to the target waveform.

One or more parameter values of the target transmission parameter may be included in the set of parameter values (also referred to as a parameter value set) of the target transmission parameter.

Determining the target transmission parameter value may be: determining a target transmission parameter value set corresponding to a target waveform; one parameter value is selected as a target transmission parameter value from one or more parameter values included in the target transmission parameter value set. In the case where there are a plurality of target transmission parameter values, a plurality of parameter values may be selected as the target transmission parameter value from one or more parameter values included in the target transmission parameter value set.

As an optional implementation manner, the selecting a target transmission parameter value from a target transmission parameter value set of a target transmission parameter corresponding to the target waveform includes: under the condition that the target sending parameter is a synchronous grid, one or more target synchronous grids are selected from a target synchronous grid set of the synchronous grids, wherein the synchronous grids are frequency point positions used for sending synchronous signals, one synchronous grid set of the synchronous grids corresponds to a waveform used for sending the synchronous signals, the target synchronous grid set corresponds to the target waveform, and the target sending parameter value is one or more target synchronous grids.

As another optional implementation manner, when the target transmission parameter is a channel number corresponding to a synchronization grid, one or more target channel numbers are selected from a target channel number set of channel numbers, where the synchronization grid is a frequency point position used for transmitting a synchronization signal, one channel number set of channel numbers corresponds to a waveform used for transmitting the synchronization signal, the target channel number set corresponds to a target waveform, and the target transmission parameter value is one or more target channel numbers.

Optionally, the transmitting the target synchronization signal using the target waveform according to the target transmission parameter value includes: determining one or more target synchronization grids corresponding to one or more target channel numbers under the condition that the target sending parameters are the channel numbers corresponding to the synchronization grids; the target synchronization signal is transmitted with a target waveform using one or more target synchronization grids.

The target synchronization signal to be transmitted may be determined before, after, or during the determination of the target transmission parameter value.

After determining the target transmission parameter value, the transmitting end may transmit the target synchronization signal using the target waveform according to the target transmission parameter value.

In this embodiment, a waveform determining method operating in the mobile terminal is further provided, and the waveform determining method can be used for determining a waveform used by the target synchronization signal transmitted by the signal transmitting method. Fig. 6 is a flow chart of an alternative waveform determination method according to an embodiment of the present disclosure, as shown in fig. 6, the flow chart includes the following steps:

step S602, detecting a target parameter value of a target parameter of a target synchronization signal sent by a sending end, wherein the target parameter is used for determining the synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for sending the synchronization signal;

step S604, determining a target waveform used by the sending end to send the target synchronization signal according to the target parameter value.

Through the steps, the receiving end detects a target parameter value of a target parameter of a target synchronization signal sent by the sending end, wherein the target parameter is used for determining the synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for sending the synchronization signal; according to the target parameter value, the target waveform used by the sending end for sending the target synchronous signal is determined, the problem that UE (user equipment) cannot accurately know which waveform is used for signal transmission in the related technology is solved, and the accuracy of waveform acquisition is improved.

Optionally, the main body of the above steps may be, but is not limited to, a receiving UE in a bypass communication system, and the like.

Optionally, the waveform determining method may be applied to a scenario in which the target UE in the bypass communication system receives a signal transmitted by the data source UE through the sidelink.

The receiving end detects a target parameter value of a target parameter of a target synchronization signal sent by the sending end. The target parameters and the parameter values of the target parameters are similar to those described above, and are not described again.

There may be multiple types of target parameters. The way in which the value of the target parameter is detected may be different for different types of target parameters.

As an optional implementation manner, detecting a target parameter value of a target parameter of a target synchronization signal sent by a sending end includes: detecting a target signal under the condition that the target parameter is a sequence used by the target signal, wherein the target signal is a signal based on the sequence in the synchronous signal; and determining a target sequence used by the target signal, wherein the target parameter value is the target sequence.

As another optional implementation manner, the detecting a target parameter value of a target parameter of a target synchronization signal sent by a sending end includes: under the condition that the target parameter is a target identifier corresponding to a sequence used by a target signal, detecting the target signal, wherein the target signal is a signal based on the sequence in the synchronous signal; determining a target sequence used by a target signal; and determining a target identification value of the target identification according to the target sequence, wherein the target parameter value is the target identification value.

As another optional implementation manner, the detecting a target parameter value of a target parameter of a target synchronization signal sent by a sending end includes: and under the condition that the target parameter is a structural parameter of the synchronization signal, detecting a target structural parameter value of the target synchronization signal, wherein the structural parameter is used for indicating the number and/or the position of at least one partial occupation symbol contained in the synchronization signal, the target structural parameter value is used for indicating the target number and/or the target position of at least one partial occupation symbol contained in the target synchronization signal, and the target parameter value is the target structural parameter value.

As another optional implementation manner, the detecting a target parameter value of a target parameter of a target synchronization signal sent by a sending end includes: under the condition that the target parameter is a structural parameter of the synchronization signal, a target structural parameter value of the target synchronization signal is detected, wherein the structural parameter is used for indicating the relative positions of at least two partial occupation symbols contained in the synchronization signal, the target structural parameter value is used for indicating the target relative positions of at least two partial occupation symbols contained in the target synchronization signal, and the target structural parameter value is the target structural parameter value.

After the target parameter value is detected, a target waveform may be determined from the target parameter value. The correspondence between the parameter values of the target parameters and the waveforms may be a one-to-one correspondence or a many-to-one correspondence. The manner in which the target waveform is determined may vary for different correspondences.

For a one-to-one correspondence, after determining the target parameter value, a target waveform corresponding to the target parameter value may be determined based on the correspondence of the parameter value to the waveform.

For many-to-one relationships, the parameter values corresponding to the same waveform may be treated as a set or group. One or more parameter values of the target parameter may be included in the set of parameter values (also referred to as a parameter value set) of the target parameter.

Optionally, determining, according to the target parameter value, a target waveform used by the sending end to send the target synchronization signal includes: determining a target parameter value set where a target parameter value is located, wherein one parameter value set of the target parameter corresponds to a waveform used for sending a synchronization signal, and the target parameter value set corresponds to the target waveform; and determining a target waveform used by the sending end for sending the target synchronization signal according to the target parameter value set.

After determining the target waveform, the receiving end may use the target waveform for subsequent signal reception (e.g., subsequent synchronization signal reception).

In this embodiment, a waveform determining method operating in the mobile terminal is further provided, and the waveform determining method can be used for determining a waveform used by the target synchronization signal transmitted by the signal transmitting method. Fig. 7 is a flow chart of another alternative waveform determination method according to an embodiment of the present disclosure, as shown in fig. 7, the flow chart includes the following steps:

step S702, a target synchronization signal sent by a sending end is detected;

step S704, determining a target transmission parameter value of a target transmission parameter of a target synchronization signal transmitted by a transmitting end, wherein the target transmission parameter is used for transmitting the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

step S706, according to the target sending parameter value, determining the target waveform used by the sending end to send the target synchronization signal.

Through the steps, the receiving end detects the target synchronization signal sent by the sending end; determining a target transmission parameter value of a target transmission parameter of a target synchronization signal transmitted by a transmitting end, wherein the target transmission parameter is used for transmitting the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal; the target waveform used by the sending end for sending the target synchronous signal is determined according to the target sending parameter value, the problem that UE (user equipment) cannot accurately know which waveform is used for signal transmission in the related technology is solved, and the accuracy of waveform acquisition is improved.

After detecting the target synchronization signal sent by the sending end, the receiving end can obtain the parameter information of the target synchronization signal sent by the sending end, and further determine a target sending parameter value of a target sending parameter of the target synchronization signal sent by the sending end. The target parameters and the parameter values of the target parameters are similar to those described above, and are not described again.

There may be multiple types of target transmission parameters. Different types of target transmission parameters, the way of detecting the target transmission parameter value may be the same or different.

As an optional implementation manner, determining a target transmission parameter value of a target transmission parameter for a transmission end to transmit a target synchronization signal includes: and under the condition that the target sending parameter is a synchronous grid, determining one or more target synchronous grids used by the sending end for sending the target synchronous signal, wherein the synchronous grid is the frequency point position used for sending the synchronous signal, and the target sending parameter value is one or more target synchronous grids.

As another optional implementation manner, determining a target transmission parameter value of a target transmission parameter for the transmitting end to transmit the target synchronization signal includes: and under the condition that the target sending parameter is the channel number corresponding to the synchronous grid, determining one or more target channel numbers used by the sending end for sending the target synchronous signal, wherein the synchronous grid is the frequency point position used for sending the synchronous signal, and the target sending parameter value is one or more target channel numbers.

After the target transmit parameter value is determined, a target waveform may be determined based on the target transmit parameter value. The correspondence between the parameter values of the target transmission parameters and the waveforms may be a one-to-one correspondence or a many-to-one correspondence. The manner in which the target waveform is determined may vary for different correspondences.

For a one-to-one correspondence, after determining the target transmit parameter value, a target waveform corresponding to the target transmit parameter value may be determined based on the correspondence of the parameter value to the waveform.

For many-to-one relationships, the parameter values corresponding to the same waveform may be treated as a set or group. One or more parameter values of the target transmission parameter may be included in the set of parameter values (also referred to as a parameter value set) of the target transmission parameter.

Optionally, determining, according to the target transmission parameter value, a target waveform used by the transmitting end to transmit the target synchronization signal includes: determining a target transmission parameter value set where a target transmission parameter value is located, wherein one parameter value set of the target transmission parameter corresponds to a waveform used for transmitting a synchronization signal, and the target transmission parameter value set corresponds to the target waveform; and determining a target waveform used by the sending end for sending the target synchronous signal according to the target sending parameter value set.

The signal transmission method and the waveform determination method are described below with reference to an optional application example.

Application example 1

In this example, the method for determining the waveform used by the sending UE according to the sequence used by the PSSS and/or SSSS, or the S L SSID determined by the PSSS and SSSS, specifically, when a sending UE generates and sends the PSSS and/or SSSS, the PSSS and/or SSSS sequence corresponding to the waveform is selected according to the waveform to be used (where the waveform to be used by the sending UE may be configured or preconfigured by a network side (e.g., a base station), or determined according to the detected waveform used by other sending terminals).

The used waveforms are distinguished by PSSS sequences, in particular, the PSSS can use N sequences, the Set of which is denoted Set-a. Setting a sequence Set-B as a subset of Set-A, wherein the PSSS uses the sequence in the Set-B to indicate that CP-OFDM waveforms are used; similarly, assuming a sequence Set-C as a subset of Set-A, the PSSS using the sequences in Set-C indicates the use of SC-FDMA waveform.

Further, the intersection of Set-B and Set-C is empty; the Set-B and Set-C may be Set-A, i.e., they are complementary to each other.

It can be considered that sequence-based signals or channels can be used for both CP-OFDM and SC-FDMA waveforms, and that these signals or channels can be: PSSS, SSSS, other reference signals, and some physical layer control channels. Here, it should be noted that the PSSS and the SSSS can be designed uniformly regardless of which waveform is used for the physical layer channel. The two waveforms in this example use the same PSSS design rules, except that the two waveforms correspond to different PSSS sequences.

Common PSSS sequences may be generated based on ZC (Zadoff-chu) sequences or m-sequences (longest linear feedback shift register sequences). Generally, one PSSS sequence corresponds to one

A value of, if

The value of (1) may be {0,1,2}, which respectively correspond to three PSSS sequences, and the PSSS sequence or the PSSS sequence may be used

The waveform used is determined. For example, when one UE generates a synchronization signal block and subsequent physical layer signals and channels using a CP-OFDM waveform, it may use

The corresponding sequence transmits the PSSS when the value of (1) is { 0. In contrast, if the UE uses the SC-FDMA waveform, it is used

The corresponding sequence transmits the PSSS when the value of (2) is set as {2 }. For the receiving UE, if the detected PSSS sequence corresponds to the PSSS sequence

If the PSSS sequence belongs to {0,1}, determining that the transmitting UE uses the CP-OFDM waveform, and if the PSSS sequence corresponds to the CP-OFDM waveform

And when the signal belongs to {2}, determining that the transmitting UE uses the SC-FDMA waveform.

Application example two

Similar to the differentiation of waveforms by PSSS in application example one, subsequently used waves can be differentiated by SSSS sequence,

alternatively, the SSSS may use M sequences, the Set of which is denoted Set-X. Setting a sequence Set-Y as a subset of the Set-X, and if the SSSS uses the sequence in the Set-Y, indicating that the CP-OFDM waveform is used; similarly, if a sequence Set-Z is a subset of Set-X, then SSSS using the sequences in Set-Z means that SC-FDMA waveforms are used.

Further, the intersection of Set-Y and Set-Z is empty; alternatively, the Set-Y and Set-Z collections may be Set-X, i.e., both complementary to each other.

In this example, the two waveforms use the same SSSS design rules, except that the two waveforms correspond to different SSSS sequences. Common SSSS sequences may be generated based on ZC sequences or m-sequences (e.g., two m-sequence combinations). Typically, one SSSS sequence corresponds to one

A value of, if

The value of (a) may be {0,1,2.., 335}, which respectively correspond to 336 SSSS sequences, which may use SSSS sequences or SSSS sequences

The waveform used is determined.

For example, when one UE generates a synchronization signal block and subsequent physical layer signals and channels using a CP-OFDM waveform, it may use

When the value of (1) is {0,1., (167) }, sending the SSSS by the corresponding sequence; in contrast, if the UE uses the SC-FDMA waveform, it is used

SSSS is transmitted for the corresponding sequence when the value of (1) is {168,169. For the receiving UE, if the detected SSSS sequence corresponds to the SSSS sequence

The value range of (a) is determined to transmit the waveform used by the UE.

It should be noted that the above first and second application examples are only examples, the sequence of PSSS may not be 3,

nor is it necessarily 3. The value range of the sequence of the SSSS is only an example, and the SSSS sequence or the SSSS sequence may be obtained in other manners

The division into different groups or sets, for example, an odd group, an even group, and the number of values of the other two groups is not necessarily halved.

Application example three

In this example, wave is determined by a combination of PSSS and SSSS or S L SS ID determined by PSSS and SSSS optionally, the PSSS may use N sequences, one for each

The SSSS may use M sequences, one for each

Then an S L SS ID or a sildelink sync ID (noted as

) In relation to the combination of PSSS and SSSS sequences used, it may alternatively be:

or

Thus can pass through the pair

For the differentiated use of the values of (1), e.g. setting up a group

Is a value range of

The value set of (a) corresponds to the CP-OFDM waveform, i.e. when used

When belonging to the above group or set, the CP-OFDM waveform is used; in the same way, another group can be arranged

Or

The set of (a) corresponds to the SC-FDMA waveform.

A specific example may be

Can take the value of {0,1,2},

can be {0,1,2.., 335}, and then corresponds to

The value of (a) may be {0,1,2.., 1008}, specifically:

namely, it is

One range or subset is selected in the set {0,1,2.., 1008} to correspond to CP-OFDM waveforms and another range or subset is selected to correspond to SC-FDMA waveforms.

Alternatively, the first application instance and the second application instance can be regarded as a special case of the third application instance, for example, the PSSS sequence in the first application instance corresponds to

The values of (A) determine the waveform used, i.e. these

A corresponding group

A waveform is corresponded. Similarly, in the second application example, it can be regarded as SSSS corresponding to SSSS

The value of (a) determines the waveform used.

Application example four

In this example, the waveform to be used is determined by setting a synchronization trellis (synchronization raster) used for a synchronization signal block for the sildelink communication to have a correspondence with the waveform to be used.

Synchronization grids used by bypass communication are predefined on the frequency band that the Sidelink communication can use, and these possible synchronization grids are grouped, e.g., one group of synchronization grids corresponds to CP-OFDM waveforms and another group of synchronization grids corresponds to SC-FDMA waveforms.

The synchronization grid refers to a series of frequency point positions that can be used by a synchronization signal or a synchronization signal block, and may also be referred to as a reference frequency point of the synchronization signal block.

For example, a general synchronization signal has a specific correspondence relationship with a synchronization grid, for example, the frequency of the synchronization grid corresponds to the center frequency point of the synchronization signal, i.e., the center frequency point of the synchronization signal must be on the synchronization grid (for example, in NR, a synchronization signal block occupies 20 RBs in the frequency domain, and is numbered 0 to 19, wherein the synchronization grid corresponds to RE No. 0 of RB No. 10). The Synchronization grid in NR is defined as shown in table 1, where gscn (global Synchronization Channel number) is the global Synchronization Channel number.

TABLE 1

Similarly, a usable frequency point position, that is, a synchronization grid, may be defined for a synchronization signal transmitted by a UE in the Sidelink communication, and one synchronization grid may also correspond to one channel number (which may be referred to as GSCN herein). The GSCNs or synchronization grids are grouped, wherein one group corresponds to CP-OFDM, and the other group corresponds to SC-FDMA, and the specific grouping method is not limited, and for example, even numbers of GSCNs correspond to CP-OFDM, odd numbers correspond to SC-FDMA, or vice versa.

For a synchronization signal sender, it selects a corresponding synchronization grid group or GSCN group according to a waveform to be used (where the waveform to be used by the sender may be configured or preconfigured by a network side (e.g., a base station), or determined according to detected waveforms used by other senders), and selects one or more synchronization grids in the corresponding synchronization grid group to send a synchronization signal block. The receiving side UE determines a synchronization grid or GSCN used by the transmitting side according to the received synchronization signal or synchronization signal block, and determines a waveform used by the transmitting side according to the grid or GSCN. Or, the receiving UE detects a signal on a corresponding synchronization grid according to a corresponding relationship between the configured or preconfigured synchronization grid and the waveform, and if the synchronization signal or the synchronization signal block can be detected, determines that the sending UE is using the currently detected synchronization grid and the waveform corresponding to the synchronization grid.

Application example five

In this example, the waveform used is determined by setting a correspondence relationship between the synchronization grid used for the synchronization signal block of the sildelink communication and the waveform used.

Different synchronization grids are defined for CP-OFDM and SC-FDMA on the frequency bands that may be used for Sidelink communications. Since the synchronization grids of the two are independent when being defined, the sender selects a synchronization grid corresponding to a waveform to be used according to the waveform to be used (where the waveform to be used by the sender may be configured or preconfigured by a network side (e.g., a base station), or determined according to detected waveforms used by other senders) to send a synchronization signal, and the sender may send a synchronization signal block or a synchronization signal block using one or more synchronization grids. The receiving side UE determines the type of synchronization grid used by the transmitting side according to the received synchronization signal or synchronization signal block, and determines the waveform used by the transmitting side. For example, the start frequency points of the two types of waveform synchronization grids, the frequency intervals (step lengths) between the two types of synchronization grids can be independently defined, and the parameters for calculating the reference frequency points of the two types of synchronization signal blocks can be independently designed, so that the two types of synchronization signal blocks can be distinguished on the frequency points.

Alternatively, a synchronization grid is predefined for CP-OFDM waveforms and offsets of the synchronization grid used by SC-FDMA waveforms relative to the predefined CP-OFDM synchronization grid are predefined on a frequency band that may be used by the Sidelink communications, or vice versa.

For example, the synchronization grid for the CP-OFDM waveform is determined as in Table 1, and the SC-FDMA synchronization grid is offset or shifted from the synchronization grid for the CP-OFDM waveform by a frequency, e.g., an offset of 15KHz or a multiple of 15KHz, or a number of subcarrier spacings, the offset may be positive or negative.

Application example six

In this example, the waveform is determined by designing different synchronization block structures for bypass communication for different waveforms and determining waveform according to the synchronization block structures.

Different numbers of symbols occupied by PSSS, SSSS, PSBCH, DMRS, etc., and different positions of symbols occupied by each portion or different relative positions of symbols occupied by each portion, etc., may result in different synchronization signal block structures. If different waveforms use different sync signal block structures, the waveform used by the sender can be judged by the difference of the structures.

In this example, the PSSS and/or SSSS of the synchronization signal blocks for different waveforms occupy different numbers of symbols.

For example, a synchronization signal block structure corresponding to a CP-OFDM waveform may contain one PSSS symbol, while a structure corresponding to SC-FDMA may contain two PSSS signals. The transmitting UE selects the number of symbols of the PSSS to be transmitted according to the waveform to be used when transmitting the synchronization signal block. If CP-OFDM is used, PSSS occupies one symbol; if SC-FDMA is used, the PSSS occupies two symbols. The receiving UE may determine the waveform used by the transmitting UE according to the number of symbols occupied by the detected PSSS. For example, if a PSSS symbol is detected in the synchronization signal block, the transmitting side is determined to use a CP-OFDM waveform; if two PSSS symbols are detected in the synchronization signal block, the transmitting side is determined to use the SC-FDMA waveform.

Similarly, symbols based on SSSS occupancy, or differences in PSSS and SSSS occupancy, may also be used to distinguish waveforms. And will not be described in detail herein.

Application example seven

The different positions or relative positions of the various components of the synchronization signal block are used to indicate different waveforms, e.g., the front-to-back order of PSSS and SSSS; the spacing between PSSS or SSSS symbols, if any; PSSS to SSSS spacing, etc.

For example, the relative positions of the various components of the synchronization signal block (e.g., the front-to-back order of PSSS and SSSS) are used to indicate different waveforms. For example, the synchronization signal block structure for a CP-OFDM waveform has PSSS located on symbols before the SSSS and PSSS located on symbols after the SSSS for an SC-FDMA waveform, i.e., PSSS appears/transmits first for CP-OFDM and SSSS appears/transmits first for SC-FDMA waveform.

Here, it is merely an example, and the difference in relative positions of different components in one synchronization signal block is used to indicate different waveforms.

As another example, the spacing of the various components of the synchronization signal block (e.g., the synchronization signal block contains two SSSS signals) is used to indicate different waveforms. For CP-OFDM, the signals of the two SSSS are separated by one symbol, while for SC-FDMA, two symbols may be separated. A similar design is possible for PSSS. Alternatively, the spacing of the synchronization signal blocks PSSS and SSSS may be designed differently for different waveforms, with the signals of PSSS and SSSS being spaced one symbol apart for CP-OFDM and two symbols apart for SC-FDMA.

Here, it is only an example, and the difference in the intervals for explaining the different components in one synchronization signal block is used to indicate different waveforms.

It should be noted that the manner of determining the waveform according to the synchronization signal block structure may include, but is not limited to, application example six and application example seven, and all of the scenarios in which the waveform is distinguished by different synchronization signal block structures belong to the manner of determining the waveform according to the synchronization signal block structure.

Application example eight

The waveform used may be decided by the sequence of the DMRS.

Optionally, similar to the first application example and the second application example, the PSBCH generally has associated therewith a corresponding DMRS, the DMRS is also transmitted using a specific sequence, and when the transmitting UE transmits a different waveform (wave), the transmitting UE selects the corresponding DMRS sequence, so that the receiving side can determine the wave used by the transmitting UE according to the detected DMRS sequence.

For example, the DMRS of PSBCH may use 8 different sequences, each corresponding to a number i, i ∈ {0,1,2.. 7}, and when the DMRS sequence numbered {0,1,2,3} is used, a CP-OFDM waveform is used, otherwise an SC-FDMA waveform is used.

Application example nine

There are various methods for generating different signal sequences for all the above application examples, including but not limited to using different sequence types, such as ZC sequence for SC-FDMA (e.g., DFT-S-FDMA), m sequence for CP-OFDM, different sequences for different root sequences, different sequences for different cyclic shifts, inverse sequence for one sequence, concatenation, superposition, etc., without limitation to the method for generating different sets of the above signal sequences (e.g., PSSS, SSSS, DMRS sequences).

Optionally, the PSBCH may be blindly detected by directly using two waveforms, where the PSBCH includes a check bit, and if a correct check result is obtained by blindly detecting the PSBCH through a certain waveform, it may be determined that the PSBCH is used by the PSBCH, so as to obtain a waveform used by the PSBCH, and further determine a waveform used by another channel of the physical layer.

Application example ten

Time-frequency mathematical parameters (numerology) of the transmitted or received signal can be determined by the method in the above application example, where numerology can be SCS (sub-carrier spacing), CP (Cyclic Prefix) type, or a combination of SCS and CP. In particular, the amount of the solvent to be used,

for the transmitting side: the method for transmitting numerology of a signal may include at least one of:

(1) a method for determining the sequence used by PSSS and/or SSSS according to numerology to be used;

(2) a method of determining a synchronization grid used by a synchronization signal or a synchronization signal block according to numerology to be used;

(3) a method of determining a structure of a synchronization signal or a synchronization signal block according to numerology to be used;

(4) a method of determining a sequence used for DMRS according to numerology to be used.

For the receiving side: the signal receiving method may include at least one of:

(1) methods of numerology determined by sequence used by PSSS and/or SSSS;

(2) a method of determining numerology by a synchronization grid used by a synchronization signal or a synchronization signal block;

(3) a method of determining numerology by a structure of a synchronization signal or a synchronization signal block;

(4) method for determining numerology by a sequence used by DMRS.

In particular, the numerology used by the synchronization signals or synchronization signal blocks may be indicated or determined using different synchronization grids by the methods in application example four and application example five described above. For example, different numerology using different synchronization grids. For the synchronization signal sender, it selects one or more synchronization grids corresponding to the numerology according to the numerology to be used (here, the numerology to be used by the sender may be configured or preconfigured by the network side (e.g., base station), or, determined according to the numerology used by the detected other devices, which may also be base stations or special types of devices, such as roadside units RSUs, (routesiunit), group leader or group member of a UE group), to transmit the synchronization signal blocks. The receiving side UE determines a synchronization grid or GSCN used by the sending side according to the received synchronization signal or the synchronization signal block, and determines numerology used by the sending side according to the corresponding relation between the grid or GSCN and the numerology. Or, the receiving UE detects a signal according to the corresponding numerology on the corresponding synchronization grid according to the corresponding relationship between the configured or preconfigured synchronization grid and numerology, and if the synchronization signal or synchronization signal block can be detected, determines that the sending UE is using the currently detected synchronization grid and uses the numerology corresponding to the synchronization grid.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present disclosure.

Example 2

In this embodiment, a signal sending device is further provided, and the signal sending device is used to implement the foregoing embodiments and preferred embodiments, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 8 is a block diagram of an alternative signal transmission apparatus according to an embodiment of the present disclosure, as shown in fig. 8, the apparatus includes:

(1) a first determining module 802, configured to determine a target parameter value of a target parameter corresponding to a target waveform, where the target parameter is used to determine a synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal;

(2) a second determining module 804, connected to the first determining module 802, for determining a target synchronization signal according to the target parameter value;

(3) a transmitting module 806, connected to the second determining module 804, is configured to transmit the target synchronization signal using the target waveform.

Optionally, the first determining module 802 may be configured to perform the step S402, the second determining module 804 may be configured to perform the step S404, and the sending module 806 may be configured to perform the step S406.

Optionally, the first determining module 802 may include:

and the selecting unit is used for selecting a target parameter value from a target parameter value set of a target parameter corresponding to the target waveform, wherein one parameter value set of the target parameter corresponds to a waveform for sending the synchronous signal, and the target parameter value set corresponds to the target waveform.

Optionally, the selecting unit may include:

(1) the first selection submodule is used for selecting a target sequence from a target sequence set of the target signal under the condition that a target parameter is a sequence used by the target signal, wherein the target signal is a signal based on a sequence in a synchronous signal, one sequence set of the target signal corresponds to a waveform used for sending the synchronous signal, the target sequence set corresponds to a target waveform, and a target parameter value is the target sequence; alternatively, the first and second electrodes may be,

(2) and the second selection submodule is used for selecting a target identification value from a target identification value set of the target identification under the condition that the target parameter is the target identification corresponding to the sequence used by the target signal, wherein the target signal is a signal based on the sequence in the synchronous signal, one identification value set of the target identification corresponds to a waveform used for sending the synchronous signal, the target identification value set corresponds to the target waveform, and the target parameter value is the target identification value.

Optionally, the second determining module 804 may include:

(1) a first determining unit, configured to determine, according to the target identifier value, a target sequence used by the target signal under the condition that the target parameter corresponds to the target identifier used by the target signal;

(2) and the second determining unit is connected with the first determining unit and used for determining the target synchronous signal according to the target sequence used by the target signal.

Optionally, the target signal comprises at least one of: PSSS, SSSS, DMRS.

Optionally, the first determining module 802 may include:

a third determining unit, configured to determine a target structure parameter value of the structure parameter corresponding to the target waveform when the target parameter is a structure parameter of the synchronization signal, where the structure parameter is used to indicate a number and/or a position of at least one partial occupancy symbol included in the synchronization signal, or is used to indicate a relative position of at least two partial occupancy symbols included in the synchronization signal, and the target parameter value is the target structure parameter value.

Optionally, the signal transmitting apparatus may further include:

a third determining module, configured to determine a target waveform according to configuration or preconfiguration on a network side before determining a target parameter value of a target parameter corresponding to the target waveform; or determining a target waveform according to the detected waveforms used by other sending ends, wherein the other sending ends are sending ends except the sending end.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

In the embodiment, a signal transmitting device is also provided. Fig. 9 is a block diagram of another alternative signal transmission apparatus according to an embodiment of the present disclosure, as shown in fig. 9, the apparatus includes:

(1) a determining module 902, configured to determine a target transmission parameter value of a target transmission parameter corresponding to a target waveform, where the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

(2) and a sending module 904, connected to the determining module 902, for sending the target synchronization signal by using the target waveform according to the target sending parameter value.

Alternatively, the determining module 902 may be configured to perform the step S502, and the sending module 904 may be configured to perform the step S504.

Optionally, the determining module 902 may include:

and the selecting unit is used for selecting a target transmission parameter value from a target transmission parameter value set of the target transmission parameter corresponding to the target waveform, wherein one transmission parameter value set of the target transmission parameter corresponds to a waveform for transmitting the synchronous signal, and the target transmission parameter value set corresponds to the target waveform.

Optionally, the selecting unit may include:

(1) the first selection submodule is used for selecting one or more target synchronous grids from a target synchronous grid set of the synchronous grids under the condition that a target sending parameter is a synchronous grid, wherein the synchronous grid is a frequency point position used for sending a synchronous signal, one synchronous grid set of the synchronous grids corresponds to a waveform used for sending the synchronous signal, the target synchronous grid set corresponds to a target waveform, and a target sending parameter value is one or more target synchronous grids; and/or the presence of a gas in the gas,

(2) and the second selection submodule is used for selecting one or more target channel numbers from a target channel number set of the channel numbers under the condition that the target sending parameters are the channel numbers corresponding to the synchronous grids, wherein the synchronous grids are frequency point positions used for sending synchronous signals, one channel number set of the channel numbers corresponds to a waveform used for sending the synchronous signals, the target channel number set corresponds to the target waveform, and the target sending parameter values are one or more target channel numbers.

Optionally, the sending module 904 may include:

(1) a determining unit, configured to determine one or more target synchronization grids corresponding to one or more target channel numbers when the target transmission parameter is a channel number corresponding to a synchronization grid;

(2) a transmitting unit for transmitting the target synchronization signal with the target waveform using one or more target synchronization grids.

Optionally, the signal transmitting apparatus may further include:

the target determining module is used for determining a target waveform according to the configuration or the pre-configuration of a network side before determining a target sending parameter value of a target sending parameter corresponding to the target waveform; or determining a target waveform according to the detected waveforms used by other sending ends, wherein the other sending ends are sending ends except the sending end.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

A waveform determining apparatus is also provided in the present embodiment. Fig. 10 is a block diagram of an alternative waveform determining apparatus according to an embodiment of the present disclosure, as shown in fig. 10, the apparatus including:

(1) a detecting module 1002, configured to detect a target parameter value of a target parameter of a target synchronization signal sent by a sending end, where the target parameter is used to determine the synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for sending the synchronization signal;

(2) the determining module 1004 is connected to the detecting module 1002, and is configured to determine, according to the target parameter value, a target waveform used by the sending end to send the target synchronization signal.

Alternatively, the detecting module 1002 may be configured to perform the step S602, and the determining module 1004 may be configured to perform the step S604.

Optionally, the detection module 1002 may include:

(1) a first detection unit, configured to detect a target signal in a case where a target parameter is a sequence used by the target signal, where the target signal is a sequence-based signal in a synchronization signal; determining a target sequence used by a target signal, wherein a target parameter value is the target sequence; alternatively, the first and second electrodes may be,

(2) the second detection unit is used for detecting a target signal under the condition that the target parameter is a target identifier corresponding to a sequence used by the target signal, wherein the target signal is a signal based on the sequence in the synchronous signal; determining a target sequence used by a target signal; determining a target identification value of a target identification according to the target sequence, wherein a target parameter value is the target identification value; alternatively, the first and second electrodes may be,

(3) the third detection unit is used for detecting a target structure parameter value of the target synchronization signal under the condition that the target parameter is a structure parameter of the synchronization signal, wherein the structure parameter is used for indicating the number and/or the position of at least one partial occupation symbol contained in the synchronization signal, the target structure parameter value is used for indicating the target number and/or the target position of at least one partial occupation symbol contained in the target synchronization signal, and the target parameter value is the target structure parameter value; alternatively, the first and second electrodes may be,

(4) and a fourth detecting unit, configured to detect a target structure parameter value of the target synchronization signal when the target parameter is a structure parameter of the synchronization signal, where the structure parameter is used to indicate relative positions of at least two partial occupation symbols included in the synchronization signal, the target structure parameter value is used to indicate a target relative position of at least two partial occupation symbols included in the target synchronization signal, and the target parameter value is the target structure parameter value.

Optionally, the determining module 1004 may include:

(1) a first determining unit, configured to determine a target parameter value set in which the target parameter value is located, where one parameter value set of the target parameter corresponds to a waveform used for transmitting the synchronization signal, and the target parameter value set corresponds to the target waveform;

(2) and the second determining unit is connected with the first determining unit and used for determining a target waveform used by the sending end for sending the target synchronization signal according to the target parameter value set.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

A waveform determining apparatus is also provided in the present embodiment. Fig. 11 is a block diagram of another alternative waveform determining apparatus according to an embodiment of the present disclosure, as shown in fig. 11, the apparatus including:

(1) a detecting module 1102, configured to detect a target synchronization signal sent by a sending end;

(2) a first determining module 1104, connected to the detecting module 1102, configured to determine a target sending parameter value of a target sending parameter for sending a target synchronization signal by a sending end, where the target sending parameter is used for sending the synchronization signal, and one or more parameter values of the target sending parameter correspond to a waveform for sending the synchronization signal;

(3) a second determining module 1106, connected to the first determining module 1104, configured to determine, according to the target transmission parameter value, a target waveform used by the transmitting end to transmit the target synchronization signal.

Alternatively, the detecting module 1102 may be configured to perform the step S702, the first determining module 1104 may be configured to perform the step S704, and the second determining module 1106 may be configured to perform the step S706.

Optionally, the first determining module 1104 may include:

(1) the device comprises a first determining unit and a second determining unit, wherein the first determining unit is used for determining one or more target synchronous grids used by a sending end for sending a target synchronous signal under the condition that a target sending parameter is a synchronous grid, the synchronous grid is a frequency point position used for sending the synchronous signal, and a target sending parameter value is one or more target synchronous grids; and/or the presence of a gas in the gas,

(2) and the second determining unit is used for determining one or more target channel numbers used by the sending end for sending the target synchronous signals under the condition that the target sending parameters are the channel numbers corresponding to the synchronous grids, wherein the synchronous grids are the frequency point positions used for sending the synchronous signals, and the target sending parameter values are one or more target channel numbers.

Optionally, the second determining module 1106 may include:

(1) a third determining unit, configured to determine a target transmission parameter value set where a target transmission parameter value is located, where one parameter value set of the target transmission parameter corresponds to a waveform used for transmitting a synchronization signal, and the target transmission parameter value set corresponds to a target waveform;

(2) and the fourth determining unit is used for determining a target waveform used by the sending end for sending the target synchronization signal according to the target sending parameter value set.

Optionally, the target waveform is one of: CP-OFDM waveform, SC-FDMA waveform.

It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.

Example 3

In this embodiment, a bypass communication system is further provided, and the system is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted for brevity.

Fig. 12 is a schematic structural diagram of an alternative bypass communication system according to an embodiment of the present disclosure, and as shown in fig. 12, the bypass communication system includes: a first UE 1202 and a second UE 1204, wherein the first UE 1202 comprises any one of the above signal transmission devices, and the second UE 1204 comprises any one of the above waveform determination devices.

Example 4

Embodiments of the present disclosure also provide a storage medium having a computer program stored therein, wherein the computer program is configured to perform the steps in any of the above method embodiments when executed.

Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:

s1, determining target parameter values of target parameters corresponding to the target waveforms, wherein the target parameters are used for determining the synchronous signals, and one or more parameter values of the target parameters correspond to one waveform used for transmitting the synchronous signals;

s2, determining a target synchronous signal according to the target parameter value;

s3, the target synchronization signal is transmitted using the target waveform.

Optionally, the storage medium is further arranged to store a computer program for performing the steps of:

s1, determining a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

s2, a target synchronization signal is transmitted using the target waveform according to the target transmission parameter value.

s1, detecting a target parameter value of a target parameter of a target synchronization signal transmitted by a transmitting end, wherein the target parameter is used for determining the synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal;

and S2, determining a target waveform used by the sending end to send the target synchronous signal according to the target parameter value.

s1, detecting a target synchronization signal sent by a sending end;

s2, determining a target transmission parameter value of a target transmission parameter of a target synchronization signal transmitted by a transmitting end, wherein the target transmission parameter is used for transmitting the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

and S3, determining a target waveform used by the sending end to send the target synchronous signal according to the target sending parameter value.

Optionally, in this embodiment, the storage medium may include, but is not limited to: a variety of media that can store computer programs, such as a usb disk, a ROM (Read-only Memory), a RAM (Random Access Memory), a removable hard disk, a magnetic disk, or an optical disk.

Embodiments of the present disclosure also provide an electronic device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.

Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.

Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:

s3, the target synchronization signal is transmitted using the target waveform.

s1, detecting a target synchronization signal sent by a sending end;

Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.

It will be apparent to those skilled in the art that the modules or steps of the present disclosure described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. As such, the present disclosure is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A signal transmission method, comprising:

determining a target parameter value of a target parameter corresponding to a target waveform, wherein the target parameter is used for determining a synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal;

determining a target synchronous signal according to the target parameter value;

and transmitting the target synchronous signal by using the target waveform.

2. The method of claim 1, wherein determining the target parameter value for the target parameter corresponding to the target waveform comprises:

and selecting the target parameter value from a target parameter value set of the target parameter corresponding to the target waveform, wherein one parameter value set of the target parameter corresponds to a waveform for transmitting the synchronous signal, and the target parameter value set corresponds to the target waveform.

3. The method of claim 2, wherein selecting the target parameter value from a set of target parameter values for the target parameter corresponding to the target waveform comprises:

selecting a target sequence from a target sequence set of the target signal when the target parameter is a sequence used by the target signal, wherein the target signal is a sequence-based signal in the synchronization signal, one sequence set of the target signal corresponds to a waveform for transmitting the synchronization signal, the target sequence set corresponds to the target waveform, and the target parameter value is the target sequence; alternatively, the first and second electrodes may be,

and under the condition that the target parameter is a target identifier corresponding to a sequence used by a target signal, selecting a target identifier value from a target identifier value set of the target identifier, wherein the target signal is a signal based on the sequence in the synchronization signal, one identifier value set of the target identifier corresponds to a waveform used for transmitting the synchronization signal, the target identifier value set corresponds to the target waveform, and the target parameter value is the target identifier value.

4. The method of claim 3, wherein determining the target synchronization signal according to the target parameter value comprises:

under the condition that the target parameter and the target identifier corresponding to the sequence used by the target signal, determining a target sequence used by the target signal according to the target identifier value;

and determining the target synchronous signal according to the target sequence used by the target signal.

5. The method of claim 3, wherein the target signal comprises at least one of: the method comprises the steps of bypassing a primary synchronization signal PSSS, bypassing a secondary synchronization signal SSSS and demodulating a reference signal DMRS.

6. The method of claim 1, wherein determining the target parameter value for the target parameter corresponding to the target waveform comprises:

and determining a target structure parameter value of the structure parameter corresponding to the target waveform when the target parameter is a structure parameter of the synchronization signal, wherein the structure parameter is used for indicating the number and/or position of at least one partial occupation symbol included in the synchronization signal, or is used for indicating the relative position of at least two partial occupation symbols included in the synchronization signal, and the target parameter value is the target structure parameter value.

7. The method of claim 1, wherein prior to determining the target parameter value for the target parameter corresponding to the target waveform, the method further comprises:

determining the target waveform according to the configuration or the pre-configuration of a network side; alternatively, the first and second electrodes may be,

and determining the target waveform according to the detected waveforms used by other sending ends, wherein the other sending ends are sending ends except the sending end.

8. The method of any one of claims 1 to 7, wherein the target waveform is one of: cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveforms, single carrier frequency division multiple access SC-FDMA waveforms.

9. A signal transmission method, comprising:

determining a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

and transmitting a target synchronous signal by using the target waveform according to the target transmission parameter value.

10. The method of claim 9, wherein determining the target transmission parameter value for the target transmission parameter corresponding to the target waveform comprises:

selecting the target transmission parameter value from a target transmission parameter value set of the target transmission parameter corresponding to the target waveform, wherein one transmission parameter value set of the target transmission parameter corresponds to a waveform for transmitting the synchronization signal, and the target transmission parameter value set corresponds to the target waveform.

11. The method of claim 10, wherein selecting the target transmission parameter value from the target transmission parameter value set of the target transmission parameter corresponding to the target waveform comprises:

under the condition that the target sending parameter is a synchronous grid, one or more target synchronous grids are selected from a target synchronous grid set of the synchronous grids, wherein the synchronous grid is a frequency point position used for sending the synchronous signal, one synchronous grid set of the synchronous grids corresponds to a waveform used for sending the synchronous signal, the target synchronous grid set corresponds to the target waveform, and the target sending parameter value is the one or more target synchronous grids; alternatively, the first and second electrodes may be,

and under the condition that the target sending parameter is a channel number corresponding to a synchronous grid, selecting one or more target channel numbers from a target channel number set of the channel numbers, wherein the synchronous grid is a frequency point position used for sending the synchronous signal, one channel number set of the channel numbers corresponds to a waveform used for sending the synchronous signal, the target channel number set corresponds to the target waveform, and the target sending parameter value is the one or more target channel numbers.

12. The method of claim 11, wherein transmitting a target synchronization signal using the target waveform according to the target transmit parameter value comprises:

determining one or more target synchronization grids corresponding to the one or more target channel numbers under the condition that the target sending parameter is the channel number corresponding to the synchronization grid;

transmitting a target synchronization signal with the target waveform using the one or more target synchronization grids.

13. The method of claim 9, wherein prior to determining the target transmission parameter value for the target transmission parameter corresponding to the target waveform, the method further comprises:

14. The method of any one of claims 9 to 13, wherein the target waveform is one of: cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveforms, single carrier frequency division multiple access SC-FDMA waveforms.

15. A method of waveform determination, comprising:

detecting a target parameter value of a target parameter of a target synchronization signal transmitted by a transmitting end, wherein the target parameter is used for determining the synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal;

and determining a target waveform used by the sending end for sending the target synchronization signal according to the target parameter value.

16. The method of claim 15, wherein detecting the target parameter value of the target parameter of the target synchronization signal transmitted by the transmitting end comprises:

detecting the target signal when the target parameter is a sequence used by the target signal, wherein the target signal is a sequence-based signal in the synchronization signal; determining a target sequence used by the target signal, wherein the target parameter value is the target sequence; alternatively, the first and second electrodes may be,

detecting a target signal under the condition that the target parameter is a target identifier corresponding to a sequence used by the target signal, wherein the target signal is a sequence-based signal in the synchronous signal; determining a target sequence used by the target signal; determining a target identification value of the target identification according to the target sequence, wherein the target parameter value is the target identification value; alternatively, the first and second electrodes may be,

detecting a target structure parameter value of the target synchronization signal when the target parameter is a structure parameter of the synchronization signal, wherein the structure parameter is used to indicate the number and/or position of at least one partially occupied symbol included in the synchronization signal, the target structure parameter value is used to indicate a target number and/or target position of the at least one partially occupied symbol included in the target synchronization signal, and the target parameter value is the target structure parameter value; alternatively, the first and second electrodes may be,

detecting a target structure parameter value of the target synchronization signal when the target parameter is a structure parameter of the synchronization signal, wherein the structure parameter is used to indicate a relative position of at least two partial occupancy symbols included in the synchronization signal, the target structure parameter value is used to indicate a target relative position of the at least two partial occupancy symbols included in the target synchronization signal, and the target parameter value is the target structure parameter value.

17. The method of claim 15, wherein determining a target waveform used by the transmitting end to transmit the target synchronization signal according to the target parameter value comprises:

determining a target parameter value set in which the target parameter value is located, wherein one parameter value set of the target parameter corresponds to a waveform used for transmitting the synchronization signal, and the target parameter value set corresponds to the target waveform;

and determining a target waveform used by the transmitting end for transmitting the target synchronization signal according to the target parameter value set.

18. The method of any one of claims 15 to 17, wherein the target waveform is one of: cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveforms, single carrier frequency division multiple access SC-FDMA waveforms.

19. A method of waveform determination, comprising:

detecting a target synchronization signal sent by a sending end;

determining a target transmission parameter value of a target transmission parameter of the target synchronization signal transmitted by the transmitting end, wherein the target transmission parameter is used for transmitting the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

and determining a target waveform used by the sending end for sending the target synchronization signal according to the target sending parameter value.

20. The method of claim 19, wherein determining the target transmission parameter value of the target transmission parameter for the transmitter to transmit the target synchronization signal comprises:

determining one or more target synchronous grids used by the sending end for sending the target synchronous signals under the condition that the target sending parameters are synchronous grids, wherein the synchronous grids are frequency point positions used for sending the synchronous signals, and the target sending parameter values are the one or more target synchronous grids; alternatively, the first and second electrodes may be,

and under the condition that the target sending parameter is a channel number corresponding to a synchronous grid, determining one or more target channel numbers used by the sending end to send the target synchronous signal, wherein the synchronous grid is a frequency point position used for sending the synchronous signal, and the target sending parameter value is the one or more target channel numbers.

21. The method of claim 19, wherein determining the target waveform used by the transmitting end to transmit the target synchronization signal according to the target transmission parameter value comprises:

determining a target transmission parameter value set in which the target transmission parameter value is located, wherein one parameter value set of the target transmission parameter corresponds to a waveform used for transmitting the synchronization signal, and the target transmission parameter value set corresponds to the target waveform;

and determining a target waveform used by the transmitting end for transmitting the target synchronization signal according to the target transmission parameter value set.

22. The method of any one of claims 19 to 21, wherein the target waveform is one of: cyclic prefix-orthogonal frequency division multiplexing CP-OFDM waveforms, single carrier frequency division multiple access SC-FDMA waveforms.

23. A signal transmission device, comprising:

a first determining module, configured to determine a target parameter value of a target parameter corresponding to a target waveform, wherein the target parameter is used to determine a synchronization signal, and one or more parameter values of the target parameter correspond to a waveform used for transmitting the synchronization signal;

the second determining module is used for determining a target synchronous signal according to the target parameter value;

and the sending module is used for sending the target synchronization signal by using the target waveform.

24. A signal transmission device, comprising:

a determining module, configured to determine a target transmission parameter value of a target transmission parameter corresponding to a target waveform, wherein the target transmission parameter is used for transmitting a synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used for transmitting the synchronization signal;

and the sending module is used for sending the target synchronous signal by using the target waveform according to the target sending parameter value.

25. A waveform determining apparatus, comprising:

the device comprises a detection module, a processing module and a control module, wherein the detection module is used for detecting target parameter values of target parameters of target synchronization signals transmitted by a transmitting end, the target parameters are used for determining the synchronization signals, and one or more parameter values of the target parameters correspond to a waveform used for transmitting the synchronization signals;

and the determining module is used for determining a target waveform used by the sending end for sending the target synchronization signal according to the target parameter value.

26. A waveform determining apparatus, comprising:

the detection module is used for detecting a target synchronization signal sent by a sending end;

a first determining module, configured to determine a target transmission parameter value of a target transmission parameter for the transmitting end to transmit the target synchronization signal, where the target transmission parameter is used to transmit the synchronization signal, and one or more parameter values of the target transmission parameter correspond to a waveform used to transmit the synchronization signal;

and the second determining module is used for determining a target waveform used by the sending end for sending the target synchronization signal according to the target sending parameter value.

27. A bypass communication system, characterized in that the bypass communication system comprises a first user equipment UE and a second UE, the first UE comprises the signal transmission apparatus of claim 23 or 24, and the second UE comprises the waveform determination method apparatus of claim 25 or 26.

28. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 22 when executed.

29. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 22.