CN110972252B - Signal sending method, waveform configuration method, terminal and network equipment - Google Patents

Signal sending method, waveform configuration method, terminal and network equipment Download PDF

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CN110972252B
CN110972252B CN201811142465.5A CN201811142465A CN110972252B CN 110972252 B CN110972252 B CN 110972252B CN 201811142465 A CN201811142465 A CN 201811142465A CN 110972252 B CN110972252 B CN 110972252B
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link
waveform
signal block
synchronous
synchronous signal
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CN110972252A (en
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任晓涛
赵锐
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup

Abstract

The invention discloses a signal sending method, a waveform configuration method, a terminal and network equipment. The signal sending method comprises the following steps: determining a waveform used by a synchronous signal block in a through link of the terminal according to the minimum supported bandwidth, subcarrier spacing and/or the number of synchronous subframes of the through link, wherein the synchronous signal block is a combined block of a through link synchronous signal and a physical through link broadcast channel; and transmitting the synchronous signal block according to the waveform. The scheme of the invention can complete SSB beam scanning in fewer synchronous subframes. The occupation of resources is reduced, more transmission time is reserved for service transmission, and the resource utilization performance of the Sidelink data transmission is improved.

Description

Signal sending method, waveform configuration method, terminal and network equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a signal sending method, a waveform configuration method, a terminal, and a network device.
Background
In a 5G NR (new Radio Access technology) V2X (Vehicle-to-event) system, a PC5 Port (Proximity Communication Port 5) Sidelink (direct link, secondary link, or bypass) is used for direct Communication between terminals. Before the service data transmission is carried out, synchronization is established between two terminals which need to communicate at first at a port of the PC 5. The method for establishing synchronization is that one terminal A sends a synchronization signal, the other terminal B receives the synchronization signal sent by the terminal A, once the terminal B successfully receives and demodulates, the two terminals can establish synchronization, and preparation is made for the next step of direct communication.
The Synchronization Signal of the NR UU port (interface of the user and the network) is carried by SSB (Synchronization Signal Block). The SSBs include a PSS (Primary Synchronization Signal), a SSS (Secondary Synchronization Signal), a PBCH (Physical Broadcast Channel), and the like, 2 SSB blocks are carried in each Slot, and there is no time domain repetition mechanism between the PSS and the SSS.
In order to complete Beam measurement and Beam selection, the SSB at the NR UU port needs to perform Beam scanning (Beam scanning), where the Beam scanning is that the base station transmits the SSB once in each possible Beam direction within a certain time interval (5ms), and then the terminal measures the SSB signal strength of each Beam and reports the measurement result to the base station, and the base station selects the most suitable Beam to transmit data to the terminal according to the measurement result reported by the terminal. The number of directions in which beams need to be scanned is also different according to different carrier frequencies and different subcarrier intervals. The maximum values of the SSB beam scanning candidate directions in different carrier frequency ranges are respectively: 4/8/64, the number of beam scanning directions actually deployed cannot exceed this maximum.
In R15LTE V2X communication, before a UE is ready to perform service transmission on a Sidelink, Synchronization needs to be acquired on the Sidelink first, and in order to expand the coverage of a Synchronization Signal, time domain repetition of a PSSS (Primary Sidelink Synchronization Signal)/SSSS (Secondary Sidelink Synchronization Signal) Signal needs to be performed to enhance the detection performance of the Synchronization Signal.
As shown in fig. 1, is a design diagram of an R15LTE V2X Synchronization Signal Block (SSB). The abscissa is the time domain and each column represents one OFDM symbol. The ordinate is the frequency domain, which in the figure is 6 RB. One Slot accommodates an SSB, which includes PSSS, SSSS, PSBCH (Physical Sidelink Broadcast Channel) and the necessary DMRS (Demodulation Reference Signal).
As shown in fig. 1, the synchronization signal block in R15LTE V2X Sidelink is transmitted only once by using an omnidirectional antenna, which makes it impossible for the UE to increase the signal strength of the synchronization signal block by using a beam scanning method when transmitting and receiving the synchronization signal block, so that the coverage of the R15LTE V2X Sidelink synchronization broadcast information is small.
With the emergence of 5G NR, the technology of vehicle networking is promoted to be further developed so as to meet the requirements of new application scenarios. The 5G NR supports a larger bandwidth, flexible configuration of subcarrier spacing, and transmission of synchronization signals and broadcast information in the form of SSB beam scanning. This brings new challenges to the design of the physical layer structure of NR V2X, and the transmission and reception of synchronization signals and broadcast information performed by the UE on the synchronization subframe need to be redesigned, and an SSB beam scanning mechanism needs to be introduced to meet the requirement of NR V2X.
In addition, the existing SSB beam scanning mechanism in NR needs to complete beam scanning within 5ms, for V2X, service data cannot be sent in the beam scanning process, and V2X has a high requirement on the delay of the service data, and generally can only allow 1-2 ms of beam scanning time, so the current beam scanning mechanism in NR, which needs to take 5ms, cannot meet the requirement of NR V2X, and a mechanism capable of completing beam scanning in a shorter time needs to be designed.
Disclosure of Invention
The embodiment of the invention provides a signal sending method, a waveform configuration method, a terminal and network equipment. SSB beam scanning can be accomplished in fewer simultaneous subframes. The occupation of resources is reduced, more transmission time is reserved for service transmission, and the resource utilization performance of the Sidelink data transmission is improved.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
a method of transmitting a signal, the method comprising:
determining a waveform used by a synchronous signal block in a through link of the terminal according to the minimum supported bandwidth, subcarrier spacing and/or the number of synchronous subframes of the through link, wherein the synchronous signal block is a combined block of a through link synchronous signal and a physical through link broadcast channel;
and transmitting the synchronous signal block according to the waveform.
Determining a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth, a subcarrier interval and/or the number of synchronization subframes of the through link, wherein the determining comprises the following steps:
and determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link by means of pre-configuration or receiving a notification signaling.
Determining a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth, a subcarrier interval and/or the number of synchronization subframes of the through link in a pre-configured manner, wherein the determining comprises the following steps:
after the terminal is started, automatically reading a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in the terminal, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table; or
After the terminal is started, acquiring a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in network equipment, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table.
Determining a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth, a subcarrier interval and/or the number of synchronization subframes of the through link by receiving a notification signaling, wherein the determining comprises the following steps:
and receiving a notification signaling from a network device, wherein the notification signaling carries a waveform used by a synchronous signal block in the through link, which is determined by the network device according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
Wherein the notification signaling is: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
Wherein the waveform comprises: an orthogonal frequency division multiplexing CP-OFDM waveform of cyclic prefix or an orthogonal frequency division multiplexing DFT-s-OFDM waveform of discrete fourier transform spread spectrum.
Wherein transmitting the synchronization signal block according to the waveform includes:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
Wherein, in the transmission pattern: each 1 subframe comprises at least one Slot, each 1 Slot comprises at least 3 synchronous signal blocks, and each 1 synchronous signal block at least comprises: primary through link synchronization signal PSSS, secondary through link synchronization signal SSSS, and physical through link broadcast channel PSBCH.
Wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises: if the waveform is a DFT-s-OFDM waveform and the minimum supported bandwidth of the system is a first system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N1 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal PSSS located on one OFDM symbol, a secondary direct link synchronization signal SSSS located on one OFDM symbol, a physical direct link broadcast channel PSBCH located on one OFDM symbol, and a demodulation pilot reference signal DMRS located on one OFDM symbol, said N1 being greater than or equal to 3.
Wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises: if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a second system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N2 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal PSSS located on one OFDM symbol, a secondary direct link synchronization signal SSSS located on a partial carrier of one OFDM symbol, and a physical direct link broadcast channel PSBCH located on at least one OFDM symbol, said N2 being greater than or equal to 3.
Wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises: if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a third system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N3 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal PSSS located on one OFDM symbol, a secondary direct link synchronization signal SSSS located on a part of subcarriers of one OFDM symbol, and a physical direct link broadcast channel PSBCH located on at least two OFDM symbols, said N3 being greater than or equal to 3.
The embodiment of the invention also provides a waveform configuration method, which is applied to network equipment and comprises the following steps:
and configuring the waveform used by a synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform, wherein the synchronous signal block is a combined block of a synchronous signal of the through link and a broadcast channel of a physical through link.
The method for configuring the waveform used by the synchronous signal block in the terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link comprises the following steps:
and sending a notification signaling to a terminal, wherein the notification signaling carries a waveform used by a synchronous signal block in the through link, which is determined by the network equipment according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
Wherein the notification signaling is: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
Wherein the waveform comprises: an orthogonal frequency division multiplexing CP-OFDM waveform of cyclic prefix or an orthogonal frequency division multiplexing DFT-s-OFDM waveform of discrete fourier transform spread spectrum.
An embodiment of the present invention further provides a terminal, including:
the processor is used for determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
a transceiver for transmitting the synchronization signal block according to the waveform.
An embodiment of the present invention further provides a signal transmitting apparatus, including:
the processing module is used for determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
and the transceiver module is used for transmitting the synchronous signal block according to the waveform.
An embodiment of the present invention further provides a terminal, including: a processor configured to perform the following functions: determining a waveform used by a synchronous signal block in a through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; transmitting the synchronization signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel.
An embodiment of the present invention further provides a network device, including:
the processor is used for configuring the waveform used by the synchronous signal block in the terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel.
The embodiment of the present invention further provides a waveform configuration apparatus, including:
the processing module is used for configuring the waveform used by the synchronous signal block in the terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel.
An embodiment of the present invention further provides a network device, including: a processor configured to perform the following functions: configuring a waveform used by a synchronous signal block in a terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel.
Embodiments of the present invention also provide a computer storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described above.
The embodiment of the invention also provides a signal sending method, which comprises the following steps:
obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; in the transmission pattern, each 1 subframe comprises at least one Slot, and each 1 Slot comprises at least 3 synchronous signal blocks;
and transmitting the synchronous signal block according to the transmission pattern.
Wherein, in the transmission pattern: each 1 synchronization signal block includes at least: primary through link synchronization signal PSSS, secondary through link synchronization signal SSSS, and physical through link broadcast channel PSBCH.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary through-link synchronization signal PSSS located on one OFDM symbol, a secondary through-link synchronization signal SSSS located on one OFDM symbol, a physical through-link broadcast channel PSBCH located on one OFDM symbol, and a demodulation pilot reference signal DMRS located on one OFDM symbol.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary through-link synchronization signal PSSS located on one OFDM symbol, a secondary through-link synchronization signal SSSS located on a partial carrier of one OFDM symbol, and a physical through-link broadcast channel PSBCH located on at least one OFDM symbol.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary through-link synchronization signal PSSS located on one OFDM symbol, a secondary through-link synchronization signal SSSS located on a portion of subcarriers of one OFDM symbol, and a physical through-link broadcast channel PSBCH located on at least two OFDM symbols.
An embodiment of the present invention further provides a terminal, including:
a processor for obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; in the transmission pattern, each 1 subframe comprises at least one Slot, and each 1 Slot comprises at least 3 synchronous signal blocks;
a transceiver for transmitting the synchronization signal block according to the transmission pattern.
An embodiment of the present invention further provides a signal transmitting apparatus, including:
a processing module for obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; in the transmission pattern, each 1 subframe comprises at least one Slot, and each 1 Slot comprises at least 3 synchronous signal blocks;
and the transceiver module is used for transmitting the synchronous signal block according to the transmission pattern.
An embodiment of the present invention further provides a terminal, including: a processor configured to perform the following functions: obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; transmitting the synchronization signal block according to the transmission pattern; in the transmission pattern, each 1 subframe includes at least one Slot, and each 1 Slot includes at least 3 synchronization signal blocks.
Embodiments of the present invention also provide a computer storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described above.
The embodiment of the invention has the beneficial effects that:
in the above embodiments of the present invention, a waveform used by a synchronization signal block in a through link of the terminal is determined according to a minimum supported bandwidth of the through link, a subcarrier interval, and/or the number of synchronization subframes, where the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel; and transmitting the synchronous signal block according to the waveform. SSB beam scanning can be accomplished in fewer simultaneous subframes. The occupation of resources is reduced, more transmission time is reserved for service transmission, and therefore the resource utilization performance of the through link data transmission is improved.
Drawings
Fig. 1 is a design diagram of an R15LTE V2X Sidelink synchronization signal block;
fig. 2 is a flowchart illustrating a method for transmitting a signal according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a manner-determining waveform for notification signaling;
FIG. 4 is a diagram illustrating an example of a first manner of transmitting a synchronization signal block;
FIG. 5 is a diagram illustrating another example of a first manner of transmitting a synchronization signal block;
FIG. 6 is a diagram of a second manner of transmitting a synchronization signal block;
FIG. 7 is a diagram of a third manner of transmitting a synchronization signal block;
FIG. 8 is a block diagram of a terminal;
fig. 9 is a schematic diagram of a network device architecture.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 2, an embodiment of the present invention provides a signal sending method, applied to a terminal, where the method includes:
step 21, determining a waveform used by a synchronization signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier spacing and/or the number of synchronization subframes of the through link, wherein the Synchronization Signal Block (SSB) comprises: a combination block of a direct link synchronization signal such as PSSS, SSSS, etc. and a physical direct link broadcast channel such as PSBCH, etc.;
specifically, the waveform used by the synchronization signal block in the through link of the terminal may be determined according to the minimum supported bandwidth, the subcarrier spacing, and/or the number of synchronization subframes of the through link by means of pre-configuring or receiving a notification signaling.
The waveform includes: a cyclic-prefixed orthogonal frequency division multiplexing (CP-OFDM) waveform or a discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) waveform.
And step 22, transmitting the synchronous signal block according to the waveform.
This embodiment can complete SSB beam scanning in fewer synchronized subframes. The occupation of resources is reduced, more transmission time is reserved for service transmission, and therefore the resource utilization performance of the through link data transmission is improved.
In a specific embodiment of the present invention, in step 21, determining, in a preconfigured manner, a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth of the through link, a subcarrier interval, and/or a number of synchronization subframes, includes:
after the terminal is started, automatically reading a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in the terminal, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table; or
After the terminal is started, acquiring a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in network equipment, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table.
The concrete implementation is as follows: for example, after the terminal is powered on, the preset "minimum supported bandwidth", "subcarrier spacing (SCS)" and/or "number of synchronization subframes" of the through link stored in the terminal and the corresponding table of the waveforms used by the SSBs of the through link are automatically read, and then the waveforms used by the SSBs of the through link are determined according to the corresponding relationship in the table.
Or, after the terminal is powered on, the terminal may read, from the base station side, a table corresponding to the preset "minimum supported bandwidth" and/or "subcarrier spacing (SCS)" and/or "number of synchronization subframes" of the through link and the waveform used by the SSB of the through link.
The waveform used by the SSB of the through link is determined according to the "minimum supported bandwidth", "subcarrier spacing (SCS)" and/or "number of synchronization subframes" of the through link, with the goal of ensuring that beam scanning can be completed in the limited synchronization subframes.
One way of determining is: when the minimum supported bandwidth of the through link is 5MHz, the subcarrier interval is 15KHz, and the number of synchronous subframes is 1, because each subframe has one Slot, in order to accommodate more beams in one synchronous subframe, a CP-OFDM waveform is adopted, because the CP-OFDM waveform can realize multiplexing of DMRS and PSBCH, and can accommodate more SSBs in one Slot.
When the minimum supported bandwidth of the through link is 20MHz, the subcarrier interval is 30KHz, and the number of synchronous subframes is 1, because each subframe has 2 slots and the bandwidth is wide, a DFT-s-OFDM waveform can be adopted, so that the coverage range of synchronous broadcast signals can be enlarged.
One possible case of the correspondence table of the "minimum supported bandwidth", "subcarrier spacing", and/or "number of synchronization subframes" of the through link and the waveform used by the SSB of the through link is as shown in table 1 below:
Figure BDA0001816099640000101
TABLE 1
In this embodiment, after the terminal is powered on, the correspondence table between the minimum supported bandwidth, the subcarrier spacing, and/or the number of the synchronous subframes of the through link, which are stored in advance in the terminal, and the waveform is automatically read, and the waveform used by the synchronous signal block in the through link is determined according to the correspondence table.
In a specific embodiment of the present invention, in step 21, determining a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth, a subcarrier interval, and/or the number of synchronization subframes of the through link by receiving a notification signaling includes:
and receiving a notification signaling from a network device, wherein the notification signaling carries a waveform used by a synchronous signal block in the through link, which is determined by the network device according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
Wherein the notification signaling is: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
The concrete implementation is as follows: as shown in fig. 3, the notification signaling may be an air interface signaling, where the air interface signaling includes multiple possible methods, for example, the notification signaling may be a waveform used by an SSB in the direct link that is notified to the terminal by the base station through a broadcast message; the base station informs the waveform used by the SSB in the terminal straight-through link through a dynamic DCI signaling in the PDCCH; it is also possible that the base station informs the terminal of the waveform used by the SSB in the direct link through RRC signaling.
The waveform used by the SSB of the through-link is determined according to the "minimum supported bandwidth", "subcarrier spacing (SCS)" and/or "number of synchronization subframes" of the through-link, with the goal of ensuring that the beam scanning can be completed in the limited synchronization subframes.
One way of determining is: when the minimum supported bandwidth of the through link is 5MHz, the subcarrier interval is 15KHz, and the number of synchronous subframes is 1, because each subframe has one Slot, in order to accommodate more beams in one synchronous subframe, a CP-OFDM waveform is adopted, because the CP-OFDM waveform can realize multiplexing of DMRS and PSBCH, and can accommodate more SSBs in one Slot.
When the minimum supported bandwidth of the through link is 20MHz, the subcarrier interval is 30KHz, and the number of synchronous subframes is 1, because each subframe has 2 slots and the bandwidth is wide, a DFT-s-OFDM waveform can be adopted, so that the coverage range of synchronous broadcast signals can be enlarged.
In this embodiment, the waveforms used by the synchronization signal blocks in the through link of the terminal are determined by an air interface signaling manner, and the correspondence between the "minimum supported bandwidth", "subcarrier spacing", and/or "number of synchronization subframes" of the through link and the waveforms used by the SSBs of the through link is relatively flexible, and can be adjusted dynamically or semi-statically, simply and directly.
In an embodiment of the present invention, the step 22 may specifically include:
step 221, determining a transmission pattern of the synchronization signal block according to the waveform;
step 222, transmitting the synchronization signal block according to the transmission pattern.
Wherein, in the transmission pattern: each 1 subframe comprises at least one Slot, each 1 Slot comprises at least 3 synchronous signal blocks, and each 1 synchronous signal block at least comprises: PSSS, SSSS, and PSBCH.
Wherein, the first implementation manner of step 221 includes:
if the waveform is a DFT-s-OFDM waveform and the minimum supported bandwidth of the system is a first system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N1 synchronous signal blocks, and each 1 synchronous signal block comprises: PSSS located on one OFDM symbol, SSSS located on one OFDM symbol, PSBCH located on one OFDM symbol, and DMRS located on one OFDM symbol, the N1 being greater than or equal to 3.
When the waveform is DFT-s-OFDM and the minimum supported bandwidth of the system is 50RB, 3 SSBs are contained in every 1 Slot. The PSSS, SSSS, PSBCH, DMRS in each SSB occupy one symbol, and the order of the 4 contents can be adjusted. Two implementations of the described distribution pattern are shown in figures 4 and 5,
in this embodiment, 3 SSBs can be accommodated in one Slot, which is beneficial for completing the beam scanning in a shorter time.
Wherein, the second implementation manner of step 121 includes: if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a second system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N2 synchronous signal blocks, and each 1 synchronous signal block comprises: PSSS located on one OFDM symbol, SSSS located on a partial carrier of one OFDM symbol, and PSBCH located on at least one OFDM symbol, the N2 being greater than or equal to 3.
The concrete implementation is as follows: when the waveform is CP-OFDM and the minimum supported bandwidth of the system is 50RB, 4 SSBs are contained in every 1 Slot. In each SSB, PSSS occupies one symbol, PSBCH occupies one symbol and partial subcarriers of another symbol, and SSSS occupies partial subcarriers of one symbol. One implementation of the described distribution pattern is shown in fig. 6, in this embodiment, 4 SSBs can be accommodated in one Slot, which is beneficial for completing the beam scanning in a short time.
Wherein, the third implementation manner of step 121 includes:
if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a third system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N3 synchronous signal blocks, and each 1 synchronous signal block comprises: PSSS located on one OFDM symbol, SSSS located on a part of subcarriers of one OFDM symbol, and PSBCH located on at least two OFDM symbols, the N3 being greater than or equal to 3.
The concrete implementation is as follows: when the waveform is CP-OFDM and the minimum supported bandwidth of the system is 20RB, 3 SSBs are contained in each 1 Slot. In each SSB, PSSS occupies one symbol, PSBCH occupies two symbols and partial subcarriers of the other symbol, and SSSS occupies partial subcarriers of one symbol. One implementation of the described distribution pattern is shown in fig. 7, in which only 20 RBs of bandwidth need be occupied in the frequency domain, so that the minimum supported bandwidth of the scheme is 20 RBs.
The foregoing embodiments of the present invention provide a method for sending an adaptive Synchronization Signal Block (SSB), which may determine a waveform used by the SSB in a through link according to a setting condition of a "minimum supported bandwidth", "subcarrier spacing", and/or "number of synchronization subframes" of the through link, and then a terminal sends SSB information according to the determined waveform, so that SSB beam scanning may be completed in fewer synchronization subframes. The occupation of resources is reduced, more transmission time is reserved for service transmission, and the resource utilization performance of the Sidelink data transmission is improved.
As shown in fig. 8, an embodiment of the present invention further provides a terminal 80, including:
a processor 82, configured to determine, according to a minimum supported bandwidth of a through link, a subcarrier interval, and/or the number of synchronous subframes, a waveform used by a synchronous signal block in the through link of the terminal; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
a transceiver 81 for transmitting the synchronization signal block according to the waveform.
Wherein the processor 82 is specifically configured to: and determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link by means of pre-configuration or receiving a notification signaling.
Determining a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth, a subcarrier interval and/or the number of synchronization subframes of the through link in a pre-configured manner, wherein the determining comprises the following steps:
after the terminal is started, automatically reading a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in the terminal, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table; or
After the terminal is started, acquiring a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in network equipment, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table.
Determining a waveform used by a synchronization signal block in a through link of the terminal according to a minimum supported bandwidth, a subcarrier interval and/or the number of synchronization subframes of the through link by receiving a notification signaling, wherein the determining comprises the following steps:
and receiving a notification signaling from a network device, wherein the notification signaling carries a waveform used by a synchronous signal block in the through link, which is determined by the network device according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
Wherein the notification signaling is: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
Wherein the waveform comprises: an orthogonal frequency division multiplexing CP-OFDM waveform of cyclic prefix or an orthogonal frequency division multiplexing DFT-s-OFDM waveform of discrete fourier transform spread spectrum.
The transceiver 81 is specifically configured to: determining a transmission pattern of the synchronization signal block according to the waveform; and transmitting the synchronous signal block according to the transmission pattern.
Wherein, in the transmission pattern: each 1 subframe comprises at least one Slot, each 1 Slot comprises at least 3 synchronous signal blocks, and each 1 synchronous signal block at least comprises: primary through link synchronization signal PSSS, secondary through link synchronization signal SSSS, and physical through link broadcast channel PSBCH.
Wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises: if the waveform is a DFT-s-OFDM waveform and the minimum supported bandwidth of the system is a first system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N1 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on one OFDM symbol, a physical direct link broadcast channel (PSBCH) located on one OFDM symbol, and a demodulation pilot reference signal (DMRS) located on one OFDM symbol, the N1 being greater than or equal to 3.
Wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises: if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a second system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N2 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on a partial carrier of one OFDM symbol, and a physical direct link broadcast channel (PSBCH) located on at least one OFDM symbol, the N2 being greater than or equal to 3.
Wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises: if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a third system bandwidth, determining the transmission pattern of the synchronous signal block as follows: each 1 subframe comprises at least one Slot, each 1 Slot comprises N3 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on a portion of subcarriers of one OFDM symbol, and a physical direct link broadcast channel (PSBCH) located on at least two OFDM symbols, the N3 being greater than or equal to 3.
The embodiment of the terminal is a terminal corresponding to the method shown in fig. 2, and all the implementation manners of the embodiments shown in fig. 2 to fig. 7 are applicable to the embodiment, and the same technical effect can be achieved. The terminal may further include a memory 83, and the processor 82 and the memory 83 may be both communicatively connected to the transceiver 81 through a bus interface, and the functions of the processor 82 may also be implemented by the transceiver 81, and the functions of the transceiver 81 may also be implemented by the processor 82.
An embodiment of the present invention further provides a signal transmitting apparatus, including:
the processing module is used for determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
and the transceiver module is used for transmitting the synchronous signal block according to the waveform.
It should be noted that the embodiments shown in fig. 2 to 7 are all applicable to this embodiment, and the same technical effects can be achieved.
An embodiment of the present invention further provides a terminal, including: a processor configured to perform the following functions: determining a waveform used by a synchronous signal block in a through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; transmitting the synchronization signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel. It should be noted that, in this embodiment, all the implementations of the terminal-side method described above are applied, and the same technical effects can be achieved.
The embodiment of the invention also provides a waveform configuration method, which is applied to network equipment and comprises the following steps:
and configuring the waveform used by a synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform, wherein the synchronous signal block is a combined block of a synchronous signal of the through link and a broadcast channel of a physical through link.
Configuring a waveform used by a terminal for configuring a synchronous signal block in a through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, wherein the waveform comprises the following steps:
and sending a notification signaling to a terminal, wherein the notification signaling carries a waveform used by the network equipment to determine a synchronous signal block in the through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
The notification signaling is as follows: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
Wherein the waveform comprises: a cyclic-prefixed orthogonal frequency division multiplexing (CP-OFDM) waveform or a discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) waveform.
In the embodiment of the present invention, the waveform used by the SSB in the through link may be determined according to the setting condition of the "minimum supported bandwidth", "subcarrier spacing", and/or "number of synchronization subframes" of the through link, and then the terminal sends the SSB information according to the determined waveform, and SSB beam scanning may be completed in fewer synchronization subframes. The occupation of resources is reduced, more transmission time is reserved for service transmission, and the resource utilization performance of the Sidelink data transmission is improved.
As shown in fig. 9, an embodiment of the present invention further provides a network device 90, including:
a processor 92, configured to configure a waveform used by a synchronization signal block in a terminal through link according to a minimum supported bandwidth of the through link, a subcarrier interval, and/or the number of synchronization subframes, so that the terminal sends the synchronization signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel. The network device may further include: the transceiver 91, the memory 93, etc., the transceiver 91 and the memory 93, and the transceiver 91 and the processor 92 may be communicatively connected through a bus interface, the function of the processor 92 may also be implemented by the transceiver 91, and the function of the transceiver 91 may also be implemented by the processor 92.
It should be noted that the network device may be a base station, and all implementation manners of the method on the network device side are applicable to this embodiment, and the same technical effect can be achieved.
The embodiment of the present invention further provides a waveform configuration apparatus, including:
the processing module is used for configuring the waveform used by the synchronous signal block in the terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel.
It should be noted that, all the implementation manners of the method on the network device side are applicable to this embodiment, and the same technical effect can be achieved.
An embodiment of the present invention further provides a network device, including: a processor configured to perform the following functions: configuring a waveform used by a synchronous signal block in a terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronization signal block is a combination block of a through link synchronization signal and a physical through link broadcast channel. It should be noted that, all the implementation manners of the method on the network device side are applicable to this embodiment, and the same technical effect can be achieved.
The embodiment of the invention also provides a signal sending method, which comprises the following steps:
step 101, obtaining a sending pattern of a synchronous signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; in the transmission pattern, each 1 subframe comprises at least one Slot, and each 1 Slot comprises at least 3 synchronous signal blocks;
step 102, according to the transmission pattern, transmitting the synchronization signal block.
Wherein, in the transmission pattern: each 1 synchronization signal block includes at least: primary through link synchronization signals (PSSS), secondary through link synchronization signals (SSSS), and physical through link broadcast channel (PSBCH).
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on one OFDM symbol, a physical direct link broadcast channel (PSBCH) located on one OFDM symbol, and a demodulation pilot reference signal (DMRS) located on one OFDM symbol.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on a partial carrier of one OFDM symbol, and a physical direct link broadcast channel (PSBCH) located on at least one OFDM symbol.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary through link synchronization signal (PSSS) located on one OFDM symbol, a secondary through link synchronization signal (SSSS) located on a portion of subcarriers of one OFDM symbol, and a physical through link broadcast channel (PSBCH) located on at least two OFDM symbols.
It should be noted that the embodiments shown in fig. 2 to 7 are all applicable to this embodiment, and the same technical effects can be achieved.
An embodiment of the present invention further provides a terminal, including:
a processor for obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; in the transmission pattern, each 1 subframe comprises at least one Slot, and each 1 Slot comprises at least 3 synchronous signal blocks;
a transceiver for transmitting the synchronization signal block according to the transmission pattern.
Wherein, in the transmission pattern: each 1 synchronization signal block includes at least: primary through link synchronization signals (PSSS), secondary through link synchronization signals (SSSS), and physical through link broadcast channel (PSBCH).
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on one OFDM symbol, a physical direct link broadcast channel (PSBCH) located on one OFDM symbol, and a demodulation pilot reference signal (DMRS) located on one OFDM symbol.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary direct link synchronization signal (PSSS) located on one OFDM symbol, a secondary direct link synchronization signal (SSSS) located on a partial carrier of one OFDM symbol, and a physical direct link broadcast channel (PSBCH) located on at least one OFDM symbol.
Wherein, in the transmission pattern: each 1 sync signal block includes: a primary through link synchronization signal (PSSS) located on one OFDM symbol, a secondary through link synchronization signal (SSSS) located on a portion of subcarriers of one OFDM symbol, and a physical through link broadcast channel (PSBCH) located on at least two OFDM symbols.
An embodiment of the present invention further provides a signal transmitting apparatus, including:
a processing module for obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; in the transmission pattern, each 1 subframe comprises at least one Slot, and each 1 Slot comprises at least 3 synchronous signal blocks;
and the transceiver module is used for transmitting the synchronous signal block according to the transmission pattern.
All the implementation manners of step 101 and step 102 in the above embodiments are applicable to the embodiment of the transmitting apparatus, and the same technical effects can be achieved.
An embodiment of the present invention further provides a terminal, including: a processor configured to perform the following functions: obtaining a transmission pattern of a synchronization signal block of a through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel; transmitting the synchronization signal block according to the transmission pattern; in the transmission pattern, each 1 subframe includes at least one Slot, and each 1 Slot includes at least 3 synchronization signal blocks. All the implementation manners of step 101 and step 102 in the above embodiments are applicable to the embodiment of the transmitting apparatus, and the same technical effects can be achieved.
Embodiments of the present invention also provide a computer storage medium including instructions that, when executed on a computer, cause the computer to perform the method as described above.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims (21)

1. A method for transmitting a signal, the method comprising:
determining the waveform used by a synchronous signal block in a through link of a terminal according to the minimum supported bandwidth, subcarrier spacing and/or the number of synchronous subframes of the through link, wherein the synchronous signal block is a combined block of a synchronous signal of the through link and a broadcast channel of a physical through link;
transmitting the synchronization signal block according to the waveform;
transmitting the synchronization signal block according to the waveform, comprising:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
2. The signal transmission method according to claim 1, wherein determining a waveform used by a synchronization signal block in the through link of the terminal according to a minimum supported bandwidth of the through link, a subcarrier spacing and/or a number of synchronization subframes comprises:
and determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link by means of pre-configuration or receiving a notification signaling.
3. The signal transmission method according to claim 2, wherein determining, in a preconfigured manner, a waveform used by a synchronization signal block in the through link of the terminal according to a minimum supported bandwidth of the through link, a subcarrier interval, and/or a number of synchronization subframes, includes:
after the terminal is started, automatically reading a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in the terminal, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table; or
After the terminal is started, acquiring a corresponding relation table of the minimum support bandwidth, subcarrier intervals and/or the number of synchronous subframes of a through link and the waveform, which are pre-stored in network equipment, and determining the waveform used by a synchronous signal block in the through link according to the corresponding relation table.
4. The signal transmission method according to claim 2, wherein determining the waveform used by the synchronization signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier spacing and/or the number of synchronization subframes of the through link by receiving the notification signaling comprises:
and receiving a notification signaling from a network device, wherein the notification signaling carries a waveform used by a synchronous signal block in the through link, which is determined by the network device according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
5. The method according to claim 4, wherein the notification signaling is: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
6. The method according to claim 1, wherein the waveform includes: an orthogonal frequency division multiplexing CP-OFDM waveform of cyclic prefix or an orthogonal frequency division multiplexing DFT-s-OFDM waveform of discrete fourier transform spread spectrum.
7. The method according to claim 1, wherein the transmission pattern includes:
each 1 subframe comprises at least one Slot, each 1 Slot comprises at least 3 synchronous signal blocks, and each 1 synchronous signal block at least comprises: primary through link synchronization signal PSSS, secondary through link synchronization signal SSSS, and physical through link broadcast channel PSBCH.
8. The method of claim 7, wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises:
if the waveform is a DFT-s-OFDM waveform and the minimum supported bandwidth of the system is a first system bandwidth, determining the transmission pattern of the synchronous signal block as follows:
each 1 subframe comprises at least one Slot, each 1 Slot comprises N1 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal PSSS located on one OFDM symbol, a secondary direct link synchronization signal SSSS located on one OFDM symbol, a physical direct link broadcast channel PSBCH located on one OFDM symbol, and a demodulation pilot reference signal DMRS located on one OFDM symbol, said N1 being greater than or equal to 3.
9. The method of claim 7, wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises:
if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a second system bandwidth, determining the transmission pattern of the synchronous signal block as follows:
each 1 subframe comprises at least one Slot, each 1 Slot comprises N2 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal PSSS located on one OFDM symbol, a secondary direct link synchronization signal SSSS located on a partial carrier of one OFDM symbol, and a physical direct link broadcast channel PSBCH located on at least one OFDM symbol, said N2 being greater than or equal to 3.
10. The method of claim 7, wherein determining the transmission pattern of the synchronization signal block according to the waveform comprises:
if the waveform is a CP-OFDM waveform and the minimum supported bandwidth of the system is a third system bandwidth, determining the transmission pattern of the synchronous signal block as follows:
each 1 subframe comprises at least one Slot, each 1 Slot comprises N3 synchronous signal blocks, and each 1 synchronous signal block comprises: a primary direct link synchronization signal PSSS located on one OFDM symbol, a secondary direct link synchronization signal SSSS located on a part of subcarriers of one OFDM symbol, and a physical direct link broadcast channel PSBCH located on at least two OFDM symbols, said N3 being greater than or equal to 3.
11. A waveform configuration method applied to a network device is characterized by comprising the following steps:
configuring a waveform used by a synchronous signal block in a direct link of a terminal according to the minimum supported bandwidth, subcarrier interval and/or the number of synchronous subframes of the direct link, so that the terminal sends the synchronous signal block according to the waveform, wherein the synchronous signal block is a combined block of a synchronous signal of the direct link and a broadcast channel of a physical direct link;
transmitting the synchronization signal block according to the waveform, comprising:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
12. The method for configuring the waveform according to claim 11, wherein configuring the waveform used by the synchronization signal block in the terminal through link according to the minimum supported bandwidth of the through link, the subcarrier spacing and/or the number of synchronization subframes comprises:
and sending a notification signaling to a terminal, wherein the notification signaling carries a waveform used by the network equipment to determine a synchronous signal block in the through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link.
13. The method according to claim 12, wherein the notification signaling is: any one of a broadcast message, downlink control information DCI, and radio resource control RRC signaling.
14. The method of configuring a waveform of claim 11, wherein the waveform comprises: an orthogonal frequency division multiplexing CP-OFDM waveform of cyclic prefix or an orthogonal frequency division multiplexing DFT-s-OFDM waveform of discrete fourier transform spread spectrum.
15. A terminal, comprising:
the processor is used for determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
a transceiver for transmitting the synchronization signal block according to the waveform, wherein a transmission pattern of the synchronization signal block is determined according to the waveform; and transmitting the synchronous signal block according to the transmission pattern.
16. An apparatus for transmitting a signal, comprising:
the processing module is used for determining the waveform used by the synchronous signal block in the through link of the terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
a transceiver module, configured to transmit the synchronization signal block according to the waveform, wherein a transmission pattern of the synchronization signal block is determined according to the waveform; and transmitting the synchronous signal block according to the transmission pattern.
17. A terminal, comprising: a processor configured to perform the following functions: determining the waveform used by a synchronous signal block in a through link of a terminal according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link; transmitting the synchronization signal block according to the waveform; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
transmitting the synchronization signal block according to the waveform, comprising:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
18. A network device, comprising:
the processor is used for configuring the waveform used by the synchronous signal block in the terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
the transmitting the synchronization signal block according to the waveform includes:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
19. An apparatus for configuring a waveform, comprising:
the processing module is used for configuring the waveform used by the synchronous signal block in the terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
the transmitting the synchronization signal block according to the waveform includes:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
20. A network device, comprising: a processor configured to perform the following functions: configuring a waveform used by a synchronous signal block in a terminal through link according to the minimum supported bandwidth, the subcarrier interval and/or the number of synchronous subframes of the through link, so that the terminal sends the synchronous signal block according to the waveform; the synchronous signal block is a combination block of a direct link synchronous signal and a physical direct link broadcast channel;
the transmitting the synchronization signal block according to the waveform includes:
determining a transmission pattern of the synchronization signal block according to the waveform;
and transmitting the synchronous signal block according to the transmission pattern.
21. A computer storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any of claims 1 to 10 or the method of any of claims 11 to 14.
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Publication number Priority date Publication date Assignee Title
CN111865860B (en) * 2020-06-29 2023-04-11 湖南省时空基准科技有限公司 Wireless broadcast time service system based on OFDM technology
CN114430585A (en) * 2022-02-09 2022-05-03 维沃移动通信有限公司 Beam scanning method, device and network side equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105981424A (en) * 2014-02-13 2016-09-28 华为技术有限公司 System and method for guard band utilization for synchronous and asynchronous communications

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10952031B2 (en) * 2016-05-20 2021-03-16 Huawei Technologies Co., Ltd. Licensed-assisted user equipment cooperation in unlicensed sidelink
WO2018062875A1 (en) * 2016-09-27 2018-04-05 Samsung Electronics Co., Ltd. Method and apparatus for transmitting and receiving signal in communication system using scalable frame structure
US10085281B2 (en) * 2016-11-29 2018-09-25 Qualcomm Incorporated Channel access for a mixed numerology carrier
CN108347293B (en) * 2017-01-24 2023-10-24 华为技术有限公司 Transmission method and device
US20200008247A1 (en) * 2017-03-23 2020-01-02 Intel IP Corporation Nr (new radio) prach (physical random access channel) configuration and multi-beam operation

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105981424A (en) * 2014-02-13 2016-09-28 华为技术有限公司 System and method for guard band utilization for synchronous and asynchronous communications

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Ericsson.SS Burst Set Composition.《3GPP TSG-RAN WG1 Meeting #88bis R1-1706008》.2017, *
NR PBCH Design;LG Electronics;《3GPP TSG RAN WG1 NR Ad-Hoc Meeting R1-1700460》;20170120;图1-2 *
SS Burst Set Composition;Ericsson;《3GPP TSG-RAN WG1 Meeting #88bis R1-1706008》;20170407;2.2节，提议5-6，图1-2 *

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