CN117835422A

CN117835422A - Signal processing method, device and equipment

Info

Publication number: CN117835422A
Application number: CN202211180023.6A
Authority: CN
Inventors: 陈咪咪; 丁昱
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2024-04-05
Also published as: WO2024067369A1

Abstract

The application provides a signal processing method, a device and equipment, wherein the method comprises the following steps: the terminal equipment determines a plurality of staggered inter structures in an unlicensed frequency band according to the bandwidth and the subcarrier spacing; and determining the frequency domain resources corresponding to the direct synchronization step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB. Therefore, the frequency domain resource of the S-SSB is determined by interleaving the interface structure and the continuous PRB, so that the channel bandwidth occupied by the S-SSB can be increased, the requirements of the OCB and PSD of an unlicensed frequency band are met, and the normal transmission of signals is ensured.

Description

Signal processing method, device and equipment

Technical Field

The present disclosure relates to the field of communications, and in particular, to a signal processing method, apparatus, and device.

Background

With the development of the fifth generation mobile communication technology (5th Generation Mobile Communication Technology,5G), due to the scarcity of licensed spectrum, the licensed spectrum carrier communication is often assisted by the unlicensed spectrum carrier in the communication technology, so that the available bandwidth can be increased to a certain extent, and the spectrum utilization rate and the data transmission rate can be improved.

But communications over unlicensed bands are required to meet the requirements of channel occupied bandwidth (Occupied Channel Bandwidth, OCB) and power spectral density (Power Spectrum Density, PSD) as specified by the european telecommunications standardization institute (European Telecommunications Standards Institute, ETSI).

In the related art, a direct link (sidlink) in a car networking (Vehicle to Everything, V2X) system generally needs to transmit a direct link SS or a PSBCH block, S-SSB, which occupies a fixed number of physical resource blocks (Physical Resource Block, PRB) in the frequency domain.

When the V2X system works in an Unlicensed frequency band, that is, in a direct link-Unlicensed frequency band access (SL-U) system, the design of the S-SSB in the related art cannot meet the actual requirements of the OCB and the PSD, and normal transmission of signals cannot be ensured.

Disclosure of Invention

The application provides a signal processing method, a device and equipment, so as to meet the actual requirements of OCB and PSD and ensure normal transmission of signals.

In a first aspect, an embodiment of the present application provides a signal processing method, including:

in an unlicensed frequency band, determining a plurality of staggered inter structures according to bandwidths and subcarrier intervals;

and determining the frequency domain resources corresponding to the direct synchronization step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB.

In one possible implementation, the frequency domain resource corresponding to the S-SSB includes a physical resource block index corresponding to the S-SSB.

In a possible implementation manner, the physical resource block index corresponding to the S-SSB is a union of the at least one set of consecutive PRB indexes and the PRB index of the interface structure.

In a possible implementation manner, the index of the physical resource block corresponding to the S-SSB includes an index of a group of consecutive PRBs.

In one possible implementation, the set of consecutive PRBs is in the middle of the bandwidth in the frequency domain; the number of the inter structures is at least one.

In a possible implementation manner, the indexes of the physical resource blocks corresponding to the S-SSB include indexes of two groups of consecutive PRBs.

In a possible implementation manner, the two groups of consecutive PRBs are located at two ends of the bandwidth in the frequency domain respectively; the number of the inter structures is at least one.

In one possible implementation, the set of consecutive PRBs includes a first number of PRBs; each interface structure comprises a second number of PRBs.

In one possible implementation, the S-SSB is carried in the at least one set of contiguous PRBs; and carrying useless signals or the S-SSB in the PRB of the interface structure.

In a second aspect, an embodiment of the present application provides a signal processing apparatus, including:

the first determining module is used for determining a plurality of staggered inter structures according to the bandwidth and the subcarrier spacing in the unlicensed frequency band;

and the second determining module is used for determining the frequency domain resources corresponding to the direct and synchronous step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB.

In a fourth aspect, embodiments of the present application provide a signal processing apparatus, including: a processor, a memory;

the memory stores computer-executable instructions;

the processor executes computer-executable instructions stored in the memory to implement the method of any one of the first aspects.

In a fifth aspect, embodiments of the present application provide a computer-readable storage medium having stored therein computer-executable instructions for performing the method of any one of the first aspects when the computer-executable instructions are executed.

In a sixth aspect, embodiments of the present application provide a computer program product comprising a computer program which, when executed, implements the method of any of the first aspects.

In a seventh aspect, embodiments of the present application provide a chip having a computer program stored thereon, which, when executed by the chip, implements a method according to any of the first aspects.

In an eighth aspect, an embodiment of the present application provides a chip module, where a computer program is stored on the chip module, and when the computer program is executed by the chip module, the method according to any one of the first aspects is implemented.

The signal processing method, the signal processing device and the signal processing equipment provided by the embodiment of the application, wherein the terminal equipment determines a plurality of staggered inter structures in an unlicensed frequency band according to the bandwidth and the subcarrier spacing; and determining the frequency domain resources corresponding to the direct synchronization step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB. Therefore, the frequency domain resource of the S-SSB is determined by interleaving the interface structure and the continuous PRB, so that the channel bandwidth occupied by the S-SSB can be increased, the requirements of the OCB and PSD of an unlicensed frequency band are met, and the normal transmission of signals is ensured.

Drawings

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;

FIG. 2 is a diagram showing a time-frequency structure of an S-SSB in the related art;

fig. 3 is a schematic flow chart of a signal processing method according to an embodiment of the present application;

FIG. 4 is a schematic illustration of an interlaced structure of NR-U for purposes of an embodiment of the present application;

fig. 5 is a schematic diagram of a corresponding physical resource block index of an S-SSB according to an embodiment of the present application;

FIG. 6 is a diagram illustrating a corresponding physical resource block index of another S-SSB according to an embodiment of the present application;

FIG. 7 is a diagram of corresponding physical resource block indexes of yet another S-SSB according to an embodiment of the present application;

FIG. 8 is a diagram illustrating a corresponding physical resource block index of yet another S-SSB according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a signal processing device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a signal processing device according to an embodiment of the present application.

Detailed Description

In order to better understand the technical solutions of the present application, the present application is further described in detail below with reference to the drawings and examples. It is to be understood that the specific embodiments and figures described herein are for purposes of illustration only and are not intended to be limiting.

Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application. Referring to fig. 1, the network device includes a terminal device 101, a terminal device 102, and a network device 103.

The terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User Equipment, or the like. The terminal device may specifically be a device that provides voice/data connectivity to a user, e.g. a handheld device with wireless connection functionality, a vehicle mounted device, etc. The method specifically comprises the following steps: a Mobile Phone (Mobile Phone), a tablet (Pad), a computer with wireless transceiver function (e.g., a notebook, a palm, etc.), a Mobile internet device (Mobile Internet Device, MID), a Virtual Reality (VR) device, an augmented Reality (Augmented Reality, AR) device, a wireless terminal in industrial control (Industrial Control), a wireless terminal in Self-Driving (Self-Driving), a wireless terminal in telemedicine (Remote Medical), a wireless terminal in Smart Grid (Smart Grid), a wireless terminal in transportation security (Transportation Safety), a wireless terminal in Smart City (Smart City), a wireless terminal in Smart Home (Smart Home), a cellular Phone, a cordless Phone, a session initiation protocol (Session Initiation Protocol, SIP) Phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a device, a wearable device, a wireless terminal in fifth generation Mobile communication device, a future-generation Mobile communication terminal in PLMN (Smart City), or an evolution Mobile network 35 of the future Mobile communication device, etc.

The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wearing and developing wearable devices by applying a wearable technology, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

Furthermore, the terminal device may also be a terminal device in an internet of things (Internet of Things, ioT) system. IoT is an important component of future information technology development, and its main technical feature is to connect an item with a network through a communication technology, so as to implement man-machine interconnection and an intelligent network for object interconnection. IoT technology can achieve massive connectivity, deep coverage, and terminal power saving through, for example, narrowband (NB) technology.

In addition, the terminal device may further include sensors such as an intelligent printer, a train detector, and a gas station, and the main functions include collecting data (part of the terminal device), receiving control information and downlink data of the network device, and transmitting electromagnetic waves to transmit uplink data to the network device. The embodiment of the application does not limit the specific type or name of the terminal equipment.

The network device may be any device having a wireless transceiving function. The apparatus includes, but is not limited to: an evolved Node B (eNB), a radio network controller (Radio Network Controller, RNC), a Node B (Node B, NB), a base station controller (Base Station Controller, BSC), a base transceiver station (Base Transceiver Station, BTS), a Home base station (e.g., home Evolved NodeB, or Home Node B, HNB), a Baseband Unit (BBU), an Access Point (AP) in a wireless fidelity (Wireless Fidelity, wiFi) system, a wireless relay Node, a wireless backhaul Node, a transmission Point (Transmission Point, TP), or a transmission reception Point (Transmission and Reception Point, TRP), and so on. The base station may also be 5G, such as a gNB in a New Radio (NR) system, or a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels in a 5G system, or may also be a network node, such as a baseband Unit (BBU), or a Distributed Unit (DU), which forms the gNB or the transmission point.

In some deployments, the gNB may include a Centralized Unit (CU) and DUs. The gNB may also include an active antenna unit (Active Antenna Unit, AAU). The CU implements part of the functionality of the gNB and the DU implements part of the functionality of the gNB. For example, the CU is responsible for handling non-real time protocols and services, implementing the functions of the radio resource control (Radio Resource Control, RRC), packet data convergence layer protocol (Packet Data Convergence Protocol, PDCP) layer. The DUs are responsible for handling Physical layer protocols and real-time services, implementing the functions of the radio link control (Radio Link Control, RLC), medium access control (Medium Access Control, MAC) and Physical (PHY) layers. The AAU realizes part of physical layer processing function, radio frequency processing and related functions of the active antenna. Since the information of the RRC layer may eventually become information of the PHY layer or be converted from the information of the PHY layer, under this architecture, higher layer signaling, such as RRC layer signaling, may also be considered to be transmitted by the DU or by the du+aau. It is understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. Furthermore, the CUs may be divided into Network devices in an access Network (Radio Access Network, RAN) or into Network devices in a Core Network (CN). The embodiment of the application is not limited to the specific type or name of the network device.

In fig. 1, a through link is between a terminal device 101 and a terminal device 102, and an uplink and downlink are between the terminal device 102 and a network device 103. The embodiment of the application is mainly aimed at signal processing of the through link in an unlicensed frequency band.

In the direct link SL system, the direct and synchronous information block S-SSB is an information block that is transmitted from a transmitting terminal to a receiving terminal in the direct communication process, so that the receiving terminal and the transmitting terminal achieve synchronization. The S-SSB includes a side-link primary synchronization signal (Sidelink Primary Synchronization Signal, S-PSS), a side-link secondary synchronization signal (Sidelink Secondary Synchronization Signal, S-SSS), and a physical through-link broadcast channel (Physical Sidelink Broadcast Channel, PSBCH). The S-SSB signal occupies one slot in the time domain and occupies 11 consecutive physical resource blocks PRB in the frequency domain.

Fig. 2 is a schematic diagram illustrating a time-frequency structure of an S-SSB in the related art. As shown in fig. 2, the S-SSB occupies one slot (slot) in the time domain, which includes 0 to 13 total 14 symbols (symbols). Wherein, symbol 0 carries automatic control gain (Automatic Gain Control, AGC), symbol 1 and symbol 2 carries S-PSS, symbol 3 and symbol 4 carries S-SSS, symbol 6 to symbol 12 carries PSBCH and demodulation reference signal (Demodulation Reference Signal, DMRS), and symbol 13 carries time interval (Gap). The S-SSB occupies 11 Resource Blocks (RBs), i.e., 11RBs, on the frequency domain.

When the SL system operates on unlicensed spectrum (frequency band), the unlicensed spectrum needs to be satisfied in some areas. For unlicensed spectrum in the 5GHz band, the requirements of OCB and PSD need to be satisfied according to ETSI specifications. For the requirement of OCB, when the terminal device uses the channel for data transmission, the occupied channel bandwidth is not less than 80% of the total channel bandwidth.

In the related art, in the SL-U system, since the S-SSB generally occupies the middle 11 physical resource blocks in the frequency domain, the requirements of the OCB and the PSD cannot be satisfied. Therefore, a new design processing method of S-SSB is needed to meet the requirements of OCB and PSD, and ensure the normal transmission of signals.

In the embodiment of the application, the terminal equipment determines a plurality of staggered inter structures in an unlicensed frequency band according to the bandwidth and the subcarrier spacing; and determining the frequency domain resources corresponding to the direct synchronization step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB. Therefore, the frequency domain resource of the S-SSB is determined by interleaving the interface structure and the continuous PRB, so that the channel bandwidth occupied by the S-SSB can be increased, the requirements of the OCB and PSD of an unlicensed frequency band are met, and the normal transmission of signals is ensured.

The following describes the embodiments shown in the present application in detail by way of specific examples. It should be noted that the following embodiments may exist independently or may be combined with each other, and for the same or similar content, the description will not be repeated in different embodiments.

Next, a procedure of signal processing will be described with reference to the embodiment shown in fig. 3.

Fig. 3 is a flow chart of a signal processing method according to an embodiment of the present application. Referring to fig. 3, the method may include:

s301, determining a plurality of staggered inter structures according to bandwidths and subcarrier intervals in an unlicensed frequency band.

In the embodiment of the present application, the bandwidth may refer to a system bandwidth of a current through link. The subcarrier spacing may refer to a spacing between subcarriers. Multiple types of Subcarrier spacing (SCS) are supported in the 5G NR system, and may specifically include 15kHZ, 30kHZ, 60kHZ, 120kHZ, 240kHZ, etc. The interlace (interlace) structure may be a unit of resource allocation. A staggered structure may include a plurality of non-contiguous PRB components, with the staggered structures being interleaved with one another.

Taking New Radio-based Access to Unlicensed spectrum, NR-U as an example, fig. 4 shows a schematic diagram of an interlace structure of NR-U according to an embodiment of the present application. In the resource pool shown in fig. 4, there are 1 slot in the time domain. In the frequency domain, the granularity of resource allocation is sub-channel (sub-channel), one sub-channel may be composed of one or more continuous PRBs, and the resource pool shown in fig. 4 has 20 PRBs in the frequency domain, and the Index (Index) of each PRB may be 0 to 19 from low to high. The 20 PRBs can be divided into 5 interleaved structures, i.e., interleaved 0, interleaved 1, interleaved 2, interleaved 3, and interleaved 4, each comprising 4 non-contiguous PRBs. Specifically, the interface 0 includes 4 PRBs with indexes of 0, 5, 10, and 15; the index 1, 6, 11, 16, 4 PRBs are included in the interface 1, and so on.

In this step, according to the bandwidth and the subcarrier spacing, the terminal device may determine a plurality of interlace structures included in the SL-U system of the through link in the unlicensed band. In this way, by determining the interleaving structure and designing the S-SSB signal based on the interleaving structure, the channel bandwidth duty cycle of the S-SSB signal can be increased, and thus the requirements of OCB and PSD can be met.

For example, assuming a bandwidth of 20 megabits (M), a subcarrier spacing of 15kHZ, and a total of 106 physical resource blocks in the frequency domain, PRB indexes are 0 to 105 in order from small to large. The terminal device may divide the 106 physical resource blocks into 10 interlace structures. Wherein, in the interlaces 0 to 5, 11 physical resource blocks are included in each interlace structure, and in the interlaces 6 to 9, 10 physical resource blocks are included in each interlace structure. Of course, when bandwidths are different and/or subcarrier spacings are different, the division results of the staggered structure are also different, which is not limited in the embodiment of the present application.

S302, determining frequency domain resources corresponding to the direct synchronization step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB.

In the embodiment of the present application, at least one group of consecutive PRBs may refer to consecutive physical resource blocks required for the S-SSB signal. The frequency domain resource may refer to a transmission resource in a frequency domain corresponding to the S-SSB, and may specifically include a physical resource block index in the frequency domain, or the like, which may of course be represented by other forms or contents, which is not limited in the embodiment of the present application.

In this step, after determining multiple interleaving structures, the terminal device may select one or more interleaving structures, and simultaneously select one or more groups of continuous physical resource blocks, so as to determine the frequency domain resources required by the S-SSB, thereby improving the channel bandwidth ratio of the S-SSB signal, and meeting the requirements of OCB and PSD.

In the signal processing method provided by the embodiment of the application, in an unlicensed frequency band, terminal equipment determines a plurality of staggered inter structures according to bandwidth and subcarrier spacing; and determining the frequency domain resources corresponding to the direct synchronization step information block S-SSB according to the interface structure and at least one group of continuous physical resource blocks PRB. Therefore, the frequency domain resource of the S-SSB is determined by interleaving the interface structure and the continuous PRB, the bandwidth occupied by the S-SSB can be increased, the requirements of the OCB and PSD of the unlicensed frequency band are met, and the normal transmission of signals is ensured.

In one possible implementation, the frequency domain resources corresponding to the S-SSB include physical resource block indexes corresponding to the S-SSB.

In one possible implementation, the physical resource block index corresponding to the S-SSB is a union of at least one set of consecutive PRB indexes and the PRB index of the interface structure.

In this embodiment of the present application, the frequency domain resource of the S-SSB may specifically refer to a physical resource block index corresponding to the S-SSB, that is, an index of a physical resource block occupied by the S-SSB. The physical resource block index corresponding to the S-SSB may be composed of two parts, one part is a continuous PRB index required for the S-SSB signal, and the other part is one or more PRB indexes of an interleaved structure.

In one possible implementation, the index of the physical resource block corresponding to the S-SSB includes an index of a set of consecutive PRBs.

In one possible implementation, a set of consecutive PRBs are in the middle of the bandwidth in the frequency domain; the number of the inter structures is at least one.

In this embodiment, a group of consecutive PRBs included in a physical resource block index corresponding to an S-SSB may be located in the middle of a bandwidth, and at this time, a terminal device may select one or more interface structures and a group of consecutive PRBs located in the middle to obtain a physical resource block index occupied by the S-SSB. In this way, by selecting a group of continuous PRBs in the middle and additionally mapping at least one PRB with an interleaving structure, and determining the physical resource block index occupied by the S-SSB by taking the union, the channel bandwidth occupation ratio of the S-SSB can be improved, and the requirements of the OCB and PSD can be met.

For example, taking a bandwidth of 20M and a subcarrier spacing of 15kHZ as an example, fig. 5 is a schematic diagram of a corresponding physical resource block index of an S-SSB in an embodiment of the present application. As shown in fig. 5, a set of consecutive PRBs (diagonally filled rectangles) in the middle of the bandwidth have indexes of 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58 in sequence, and these 11 consecutive PRBs can be used to carry S-SSB signals, where the terminal device further selects an interlace structure, which is shown as interlace 0 (solid black filled rectangle) in fig. 5, and the indexes of the interlace 0 are 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 in sequence. The terminal equipment takes the index of the PRB of the staggered structure and the index of a group of continuous PRBs to obtain the physical resource block index corresponding to the S-SSB signal, namely, the physical resource block index corresponding to the S-SSB of the SL-U is 0, 10, 20, 30, 40, 48, 49, 50, …, 56, 57, 58, 60, 70, 80, 90 and 100.

For example, taking a bandwidth of 20M and a subcarrier spacing of 15kHZ as an example, fig. 6 is a schematic diagram of a corresponding physical resource block index of another S-SSB according to an embodiment of the present application. As shown in fig. 6, a set of consecutive PRBs (diagonally filled rectangles) in the middle of the bandwidth have indexes 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58 in sequence, and these 11 consecutive PRBs can be used to carry S-SSB signals, where the terminal device further selects an interlace structure, which is interlace 2 (solid black filled rectangle) in fig. 6, and the indexes of the interlace 2 are 2, 12, 22, 32, 42, 52, 62, 72, 82, 92, 102 in sequence. The terminal equipment combines the PRB index of the staggered structure with the index of a group of continuous PRBs to obtain the physical resource block index corresponding to the S-SSB signal, namely, the physical resource block index corresponding to the S-SSB of the SL-U is 2, 12, 22, 32, 42, 48, 49, 50, …, 56, 57, 58, 62, 72, 82, 92 and 102.

It should be understood that, in the examples of fig. 5 and fig. 6, the terminal device selects a PRB index corresponding to the S-SSB by respectively selecting a union set of a staggered structure and a group of consecutive PRBs; the terminal device may also select other interleaving structures, or may also select two or more interleaving structures, and then obtain the PRB index corresponding to the S-SSB by merging with a group of consecutive PRBs.

In one possible implementation, the indexes of the two groups of consecutive PRBs are included in the physical resource block indexes corresponding to the S-SSB.

In one possible implementation, two consecutive PRBs are located at the two ends of the bandwidth in the frequency domain, respectively; the number of the inter structures is at least one.

In this embodiment, two groups of consecutive PRBs included in the physical resource block index corresponding to the S-SSB may be located in the middle of the bandwidth, and contents carried by the two groups of consecutive PRBs may be repeated. The terminal equipment can select one or more interface structures and two groups of continuous PRB union sets at two ends at the same time to obtain the physical resource block index occupied by the S-SSB. Therefore, the channel bandwidth ratio of the S-SSB can be improved, the requirements of the OCB and the PSD are met, and the flexibility of the S-SSB signal design can be improved.

Illustratively, taking a bandwidth of 20M and a subcarrier spacing of 15kHZ as an example, fig. 7 is a schematic diagram of a corresponding physical resource block index of yet another S-SSB in an embodiment of the present application. As shown in fig. 7, indexes of two consecutive groups of PRBs (diagonally filled rectangles) located at both ends of the bandwidth are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, respectively. At this time, the terminal device further selects an interlace structure, in fig. 7, interlace 0 (filled with a rectangle in pure black), and the indexes of the interlace 0 are 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100 in sequence. The terminal equipment takes the index of the PRB with the staggered structure and the indexes of two groups of continuous PRBs to obtain the physical resource block index corresponding to the S-SSB signal, namely, the physical resource block index corresponding to the S-SSB of the SL-U is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 30, 40, 50, 60, 70, 80, 90, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104 and 105.

Illustratively, taking a bandwidth of 20M and a subcarrier spacing of 15kHZ as an example, fig. 8 is a schematic diagram of a corresponding physical resource block index of yet another S-SSB in an embodiment of the present application. As shown in fig. 8, indexes of two consecutive groups of PRBs (diagonally filled rectangles) located at both ends of the bandwidth are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, respectively. At this time, the terminal device further selects an interlace structure, in fig. 8, interlace 5 (filled with a rectangle in pure black), and indexes of interlace 5 are 5, 15, 25, 35, 45, 55, 65, 75, 85, 95, and 105 in sequence. The terminal equipment takes the index of the PRB with the staggered structure and the indexes of two groups of continuous PRBs to obtain the physical resource block index corresponding to the S-SSB signal, namely, the physical resource block index corresponding to the S-SSB of the SL-U is 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 15, 25, 35, 45, 55, 65, 75, 85, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104 and 105.

It should be understood that when the terminal device selects the interleaving structure, two or more terminal devices may also be selected; in addition, when bandwidths are different or subcarrier pitches are different, the division results of the staggered structures are also different, and corresponding PRB indexes are also different.

In one possible implementation, a first number of PRBs is included in a group of contiguous PRBs; each interface structure includes a second number of PRBs.

In one possible implementation, the S-SSB is carried in at least one set of contiguous PRBs; the PRB of the interface structure carries useless signals or S-SSB.

In this embodiment of the present application, a set of consecutive PRBs may include a first number of physical resource blocks, for example, 11 physical resource blocks, for carrying S-SSB signals. A second number of physical resource blocks may be included in one interlace structure, which may be determined based on bandwidth and subcarrier spacing, e.g., may be 10 or 11, etc. The physical resource blocks in the staggered structure may carry useless signals or may carry repeated signals of the S-SSB, which is not limited in this embodiment of the present application.

Fig. 9 is a schematic structural diagram of a signal processing device according to an embodiment of the present application. Referring to fig. 9, the signal processing device 90 may include:

a first determining module 91, configured to determine a plurality of interlace structures in an unlicensed band according to a bandwidth and a subcarrier spacing;

a second determining module 92, configured to determine, according to the interface structure and at least one group of consecutive physical resource blocks PRB, the frequency domain resources corresponding to the direct synchronization step information block S-SSB.

The signal processing device 90 provided in the embodiment of the present application may execute the technical solution shown in the embodiment of the method, and its implementation principle and beneficial effects are similar, and will not be described herein again. The signal processing device 90 may be a chip, a chip module, or the like, which is not limited in the embodiment of the present application.

Fig. 10 is a schematic structural diagram of a signal processing device according to an embodiment of the present application. Referring to fig. 10, the signal processing apparatus 100 may include: memory 1001, processor 1002. The memory 1001 and the processor 1002 are connected to each other by a bus 1003, for example.

Memory 1001 is used to store program instructions;

the processor 1002 is configured to execute program instructions stored in the memory, and implement the signal processing method shown in the foregoing embodiment.

The signal processing device shown in the embodiment of fig. 10 may execute the technical solution shown in the embodiment of the method, and its implementation principle and beneficial effects are similar, and will not be described herein again.

The embodiment of the application provides a computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, and when the computer executable instructions are executed by a processor, the computer readable storage medium is used for realizing the signal processing method.

Embodiments of the present application may also provide a computer program product comprising a computer program which, when executed by a processor, implements the above-mentioned signal processing method.

The embodiment of the application provides a chip, wherein a computer program is stored on the chip, and when the computer program is executed by the chip, the signal processing method is realized.

The embodiment of the application also provides a chip module, wherein the chip module stores a computer program, and when the computer program is executed by the chip module, the signal processing method is realized.

It should be noted that the processor mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (digital signal processor, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), off-the-shelf programmable gate arrays (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should be understood that the memories mentioned in the embodiments of the present application may be volatile memories or nonvolatile memories, or may include both volatile and nonvolatile memories. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DR RAM). Note that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) is integrated into the processor. It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. The individual devices, products may be applied to or integrated in a chip, a chip module or a terminal device. For example, for each device or product applied to or integrated on a chip, each module/chip included in the device or product may be implemented by hardware such as a circuit, or at least part of modules/units may be implemented by software programs, where the software programs are running on a processor integrated inside the chip, and the rest of modules/units may be implemented by hardware such as a circuit.

In the present application, the term "include" and variations thereof may refer to non-limiting inclusion; the term "or" and variations thereof may refer to "and/or". The terms "first," "second," and the like in this application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. In the present application, "plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The foregoing is only a partial embodiment of the present application and it should be noted that it will be apparent to those skilled in the art that numerous modifications and adaptations can be made without departing from the principles of the present application and such modifications and adaptations are intended to be comprehended within the scope of the present application.

Claims

1. A signal processing method, comprising:

2. The method of claim 1, wherein the frequency domain resources corresponding to the S-SSB comprise physical resource block indexes corresponding to the S-SSB.

3. The method of claim 2, wherein the physical resource block index corresponding to the S-SSB is a union of the at least one set of consecutive PRB indices and the PRB index of the interface structure.

4. The method of claim 3, wherein the S-SSB corresponding physical resource block index comprises an index of a set of consecutive PRBs.

5. The method of claim 4, wherein the set of contiguous PRBs are centered in the bandwidth in the frequency domain; the number of the inter structures is at least one.

6. The method of claim 3, wherein the physical resource block index corresponding to the S-SSB comprises an index of two consecutive PRBs.

7. The method of claim 6, wherein the two consecutive groups of PRBs are located at two ends of a bandwidth in a frequency domain, respectively; the number of the inter structures is at least one.

8. The method according to any of claims 1 to 7, wherein the group of consecutive PRBs comprises a first number of PRBs; each interface structure comprises a second number of PRBs.

9. The method according to any of claims 1 to 8, wherein the S-SSB is carried in the at least one set of contiguous PRBs; and carrying useless signals or the S-SSB in the PRB of the interface structure.

10. A signal processing apparatus, comprising:

11. A signal processing apparatus, comprising: a processor, a memory;

the memory stores computer-executable instructions;

the processor executing computer-executable instructions stored in the memory to implement the method of any one of claims 1 to 9.

12. A computer readable storage medium having stored therein computer executable instructions for implementing the method of any of claims 1 to 9 when said computer executable instructions are executed.

13. A computer program product comprising a computer program which, when executed, implements the method of any one of claims 1 to 9.

14. A chip, characterized in that it has stored thereon a computer program which, when executed by the chip, implements the method according to any of claims 1 to 9.