CN117998591A

CN117998591A - Communication method, apparatus, device, storage medium, and program product

Info

Publication number: CN117998591A
Application number: CN202211386199.7A
Authority: CN
Inventors: 赵思聪; 丁昱; 曹永照
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2024-05-07

Abstract

The application provides a communication method, a device, equipment, a storage medium and a program product. The method comprises the following steps: the network equipment and the terminal equipment both determine resources for sending and receiving the PBCH, the terminal equipment receives first information sent by the network equipment on the first resources, and then receives second information sent by the network equipment on the second resources, so that the terminal equipment can complete the complete PBCH reception, namely complete SSB reception, and access on a smaller bandwidth is completed.

Description

Communication method, apparatus, device, storage medium, and program product

Technical Field

The present application relates to communication technology, and in particular, to a communication method, apparatus, device, storage medium, and program product.

Background

For some small bandwidth dedicated spectrum resources, these spectrum resources are often smaller than 5MHz (megahertz), such as 3MHz or 3.6 MHz. These spectrum resources are currently mainly deployed in long term evolution (Long Term Evolution, LTE) systems, but as mobile communications evolves, there may be a need to deploy new radio access technology (New Radio Access Technology, NR) systems.

However, the NR system does not consider access with bandwidth less than 5MHz at the beginning of design, and the synchronization signal block (Synchronization Signal Block, SSB) needs to occupy at least 3.6MHz, and cannot send a complete SSB for a dedicated spectrum resource of 3 MHz. How to allow a terminal device to receive a complete SSB and thereby complete access over a bandwidth of less than 5MHz (e.g., 3MHz or 3.6 MHz) is a challenge.

Disclosure of Invention

The application provides a communication method, a device, equipment, a storage medium and a program product, which are used for solving the problem of how to receive complete SSB under the condition of small broadband by terminal equipment so as to finish access.

In a first aspect, the present application provides a communication method comprising:

Receiving first information on a first resource;

And receiving second information on a second resource, wherein the first information and the second information are partial information in a Physical Broadcast Channel (PBCH) and/or a demodulation reference signal (SRS) in a Synchronous Signal Block (SSB).

In one possible implementation, the method further includes:

Determining the first resource and the second resource.

In one possible implementation, the first resource and the second resource are subsets of time-frequency domain resources occupied by SSBs located in the same or different frequency domain locations.

In one possible implementation, the determining the first resource and the second resource includes:

acquiring a target synchronization grid and the step length of each synchronization grid;

determining a first resource according to the target synchronization grid;

And determining at least one auxiliary grid according to the step length and the target synchronization grid, and determining the second resource according to the auxiliary grid.

In one possible implementation manner, the determining the first resource according to the target synchronization grid includes:

determining a time-frequency domain resource to which a first SSB positioned in a cell bandwidth belongs according to the target synchronization grid;

And determining the resource used for bearing the first PBCH and/or the first demodulation reference signal in the time-frequency domain resource to which the first SSB belongs as a first resource.

In one possible implementation manner, the determining the second resource according to the secondary grid includes:

determining a time-frequency domain resource to which a second SSB positioned in the cell bandwidth belongs according to the auxiliary grid;

And determining the resource used for bearing the second PBCH and/or the second demodulation reference signal in the time-frequency domain resource to which the second SSB belongs as a second resource.

In one possible implementation, the SSB to which the first resource belongs differs from the SSB to which the second resource belongs by one step.

acquiring a target synchronization grid and a preset frequency interval;

Determining the first resource according to the target synchronization grid;

And determining the second resource according to the preset frequency interval and the first resource.

In one possible implementation, the SSB to which the first resource belongs differs from the SSB to which the second resource belongs by a preset frequency interval.

In one possible implementation, the first resource and the second resource are different time domain locations.

Acquiring a preset period;

and respectively determining two time domain positions separated by a preset period as the first resource and the second resource.

In one possible implementation, before the receiving the first information on the first resource, the method further includes:

a primary synchronization signal PSS and a secondary synchronization signal SSS of the SSB are received on the first resource.

In one possible implementation, the first information and the second information belong to the same cell.

In one possible implementation, the first information and the second information are carried by SSBs located on the same synchronization grid, and the mapping order of the first information and the second information on physical resources is different.

In one possible implementation, the relative time domain positions of the first information and the second information are the same.

In a second aspect, the present application provides a communication method comprising:

transmitting first information on a first resource;

And transmitting second information on a second resource, wherein the first information and the second information are part of information in a Physical Broadcast Channel (PBCH) and/or a demodulation reference signal (SRS) in a Synchronous Signal Block (SSB).

In one possible implementation, the method further includes:

Determining the first resource and the second resource.

determining a first resource according to the target synchronization grid;

acquiring a target synchronization grid and a preset frequency interval;

Determining the first resource according to the target synchronization grid;

Acquiring a preset period;

Mapping the first information from a high frequency point to a low frequency point, and determining the first resource;

And after a preset period, mapping the second information to a low-frequency point and a high-frequency point, and determining the second resource.

In one possible implementation, before the first information is sent on the first resource, the method further includes:

and transmitting a primary synchronization signal PSS and a secondary synchronization signal SSS of the SSB on the first resource.

In a third aspect, the present application provides a communication apparatus comprising:

A first receiving module for receiving first information on a first resource;

And the second receiving module is used for receiving second information on a second resource, wherein the first information and the second information are part of information in a Physical Broadcast Channel (PBCH) and/or a demodulation reference signal (demodulation reference signal) in a Synchronous Signal Block (SSB).

In one possible implementation, the apparatus further includes: a determining module;

and the determining module is used for determining the first resource and the second resource.

In one possible implementation manner, the determining module is specifically configured to:

determining a first resource according to the target synchronization grid;

In one possible implementation, the determining module is further configured to:

acquiring a target synchronization grid and a preset frequency interval;

Determining the first resource according to the target synchronization grid;

Acquiring a preset period;

In one possible implementation, before receiving the first information on the first resource, the first receiving module is further configured to:

In a fourth aspect, the present application provides a communication apparatus comprising:

The first sending module is used for sending first information on the first resource;

And the second sending module is used for sending second information on a second resource, wherein the first information and the second information are part of information in a Physical Broadcast Channel (PBCH) and/or a demodulation reference signal (demodulation reference signal) in a Synchronous Signal Block (SSB).

determining a first resource according to the target synchronization grid;

acquiring a target synchronization grid and a preset frequency interval;

Determining the first resource according to the target synchronization grid;

Acquiring a preset period;

In one possible implementation, before the first information is sent on the first resource, the first sending module is further configured to:

In a fifth aspect, the present application provides an electronic device, comprising: a processor, and a memory communicatively coupled to the processor;

The memory stores computer-executable instructions;

The processor executes computer-executable instructions stored in the memory to implement the communication method as described in the first aspect.

In a sixth aspect, the present application provides an electronic device, comprising: a processor, and a memory communicatively coupled to the processor;

The memory stores computer-executable instructions;

The processor executes computer-executable instructions stored by the memory to implement the communication method as described in the second aspect.

In a seventh aspect, the present application provides a computer-readable storage medium having stored therein computer-executable instructions for implementing the communication method according to any one of the first to fourth aspects when executed by a processor.

In an eighth aspect, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the communication method according to any one of the first to fourth aspects.

In a ninth aspect, an embodiment of the present application provides a chip on which a computer program is stored, which when executed by the chip, implements the communication method according to any one of the first to fourth aspects.

In one possible embodiment, the chip is a chip in a chip module.

The application provides a communication method, a device, equipment, a storage medium and a program product, wherein network equipment and terminal equipment determine resources for sending and receiving PBCH, the terminal equipment receives first information sent by the network equipment on first resources and then receives second information sent by the network equipment on second resources, so that the terminal equipment can complete PBCH reception, namely complete SSB reception, thereby completing access on smaller bandwidth.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic diagram of SSB architecture in an NR system;

FIG. 2 is a schematic diagram of a terminal device receiving SSB;

FIG. 3 is a schematic diagram of an application scenario to which the present application is applicable;

Fig. 4 is a flow chart of a communication method according to a first embodiment of the present application;

FIG. 5 is a schematic diagram of an example first resource and second resource;

fig. 6 is a flow chart of a communication method according to a second embodiment of the present application;

fig. 7 is a flow chart of a communication method according to a third embodiment of the present application;

fig. 8 is a flow chart of a communication method according to a fourth embodiment of the present application;

FIG. 9 is an example relative time domain position of the SSB within each preset period;

fig. 10 is a schematic structural diagram of a communication device according to a fifth embodiment of the present application;

fig. 11 is a schematic structural diagram of a communication device according to a sixth embodiment of the present application;

fig. 12 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present application.

Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: LTE system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX) telecommunications system, fifth generation (5 th-generation, 5G) mobile telecommunications system, or NR. The 5G mobile communication system may include a Non-independent networking (Non-Standalone, NSA) and/or an independent networking (Standalone, SA), among others.

The technical scheme provided by the embodiment of the application can be also applied to future communication systems, such as a sixth generation mobile communication system, a seventh generation mobile communication information and the like. The application is not limited in this regard.

The technical scheme provided by the application can be also suitable for Machine type Communication (MACHINE TYPE Communication, MTC), inter-Machine Communication long term evolution (Long Term Evolution-Machine, LTE-M), device-to-Device (D2D) network, machine-to-Machine (Machine to Machine, M2M) network, internet of things (Internet of Things, ioT) network or other networks. The IoT network may include, for example, an internet of vehicles. The communication modes in the internet of vehicles system are generally called as Vehicle to other devices (V2X, X may represent anything), for example, the V2X may include: vehicle-to-vehicle (Vehicle to Vehicle, V2V) communication, vehicle-to-infrastructure (Vehicle to Infrastructure, V2I) communication, vehicle-to-pedestrian communication (Vehicle to Pedestrian, V2P) or vehicle-to-network (Vehicle to Network, V2N) communication, etc.

At present, a part of areas divide 2X3MHz frequency division duplex (Frequency Division Duplexing, FDD) frequency spectrum at 800/900MHz, and an LTE private network is deployed to support energy, traffic, logistics and other services. LTE can meet current demands, but for future higher performance demanding services, NR networks need to be deployed over the 2x3MHz spectrum. Recently, some areas have determined that future Railway mobile communication systems (Future Railway Mobile Communication System, FRMCS) will be built based on NR, but FRMCS needs to coexist with the Railway integrated digital mobile communication system (Global System for Mobile Communications-Railway, GSM-R), leaving only 3.6Mhz of bandwidth for NR FRMCS. In addition, some areas are 2x3MHz FDD bands divided for public protection and rescue and relief work (Public Protection AND DISASTER RELIEF, PPDR), which may also be built on NR basis. That is, when or in the future, NR systems have the potential and need to be deployed to the less than 5MHz band.

In the NR system, the current access flow is to first blindly test SSB on a synchronous grid, and after SSB is detected, the control resource set of the scheduling system information and the configuration information of the search space are obtained by reading PBCH in the SSB. And then, blind-checking the physical downlink control channel (Physical Downlink Control Channel, PDCCH) of the scheduling system information according to the configuration information, after the blind-checking is successful, reading the system information carried in the physical downlink shared channel (Physical Downlink SHARE CHANNEL, PDSCH) scheduled by the PDCCH to acquire the cell information, and then, carrying out random access according to the cell information to complete synchronization and link establishment.

The synchronization grid is a preset frequency point of the mobile communication system, SSB is placed on the synchronization grid for transmission when a network side arranges cells, and terminal equipment blindly searches SSB on the frequency points to acquire cell information, so that the terminal equipment accesses the cells.

The SSB consists of a primary synchronization signal (Primary Synchronization Signals, PSS), a secondary synchronization signal (Secondary Synchronization Signal, SSS) and a physical broadcast channel (Physical Broadcast Channel, PBCH), fig. 1 is a schematic diagram of an SSB structure in an NR system, the subcarrier spacing is 15KHz, unlike the design structure in which the synchronization sequence and the PBCH are separately transmitted in LTE, in the NR system, the SSBs are transmitted as a whole on 4 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols simultaneously, the SSB occupies 4 OFDM symbols in the time domain, the frequency domain occupies 240 subcarriers altogether, namely 20 physical resource blocks (Physical Resource Block, PRB), and the number is 0-239.

As can be seen from fig. 1, PSS is located in the middle 127 subcarriers of symbol 0, SSS is located in the middle 127 subcarriers of symbol 2, and for protecting PSS and SSS, there are different subcarriers at both ends of the PSS and SSS, PBCH is located in symbol 1 and symbol 3, and symbol 2, wherein symbol 1 and symbol 3 occupy all subcarriers from 0 to 239, and symbol 2 occupies all subcarriers except for the subcarrier occupied by SSS and the subcarrier protecting SSS.

As can be seen from fig. 1, the bandwidth occupied by the entire SSB is at least 3.6MHz, and when the NR system bandwidth is less than 5MHz, especially 3MHz, such dedicated spectrum resources cannot transmit the entire SSB, or the terminal device accessed under such bandwidth cannot read the entire SSB completely. However, it is found from experiments that when the terminal device completely receives the PSS and SSS parts and then receives the PBCH part, there is a certain probability that the master information block (Master Information Block, MIB) is decoded, where the MIB carries the configuration information of the control resource set and the search space of the scheduling system information. As shown in fig. 2, taking the bandwidth of 3MHz as an example, the terminal device may completely receive PSS and SSS parts, and part of PBCH, and the rest of symbols 1 and 3, and another part of PBCH (dashed box part) on both sides of the subcarrier close to the subcarrier number 0 and the subcarrier number 239 in symbol 2 cannot be received.

However, the PBCH of the receiving part will reduce the performance of the PBCH, and a loss of about 3dB is expected based on simulation evaluation. Losses of this magnitude can lead to performance degradation in system deployment, affecting system efficiency.

How to allow a terminal device to receive a complete SSB and thereby complete access over a bandwidth of less than 5MHz (e.g., 3MHz or 3.6 MHz) is a challenge.

Therefore, the application provides a communication method, wherein the network equipment side and the terminal equipment side both determine different resource positions for sending and receiving PBCH, and respectively send and receive different parts of the PBCH on the different resource positions, so that the terminal equipment can complete the complete PBCH reception, namely complete SSB reception, thereby completing the access on a smaller bandwidth.

For easy understanding, an application scenario to which the embodiment of the present application is applied is described below in conjunction with the example of fig. 3.

Fig. 3 is a schematic diagram of an application scenario to which the present application is applicable, please refer to fig. 3, which includes a network device 301 and a terminal device 302. The network device 301 may send part of the PBCH information to the terminal device 302 on a first resource and then send another part of the PBCH information to the terminal device 302 on a second resource, so that the information sending and receiving on these two resources completes the transmission of the whole PBCH.

It should be noted that, part of the information of the PBCH transmitted on the first resource and the other part of the information of the PBCH transmitted on the second resource all belong to the same cell, so as to complete the merging and decoding of the information.

It is understood that the number of network devices 301 and terminal devices 302 may be plural, which is not shown in the figure.

In the embodiment of the application, the network device can be any device with a wireless receiving and transmitting 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 Base Band Unit (BBU), an Access Point (AP) in a wireless fidelity (WIRELESS FIDELITY, WIFI) system, a radio relay Node, a radio backhaul Node, a transmission Point (Transmission Point, TP), or a transmission reception Point (Transmission and Reception Point, TRP), etc., may also be 5G, such as NR, a next generation base station (The Next Generation Node B, gNB) in the system, or a transmission Point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in the 5G system, or may also be a network Node constituting the gNB or the transmission Point, such as a Baseband Unit (BBU), or a Distributed Unit (DU), etc.

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 radio resource control (Radio Resource Control, RRC), PDCP layer. The DU is responsible for handling Physical layer protocols and real-time services, and implements functions of a radio link control (Radio Link Control, RLC) layer, a MAC layer, and a Physical (PHY) layer. 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 be eventually changed into or 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. In addition, the CU may be divided into Network devices in an access Network (Radio Access Network, RAN), or may be divided into Network devices in a Core Network (CN), which the present application is not limited to.

The network device provides services for the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources, or spectrum resources) allocated by the network device, where the cell may belong to a macro base station (e.g., macro eNB or macro gNB, etc.), or may belong to a base station corresponding to a small cell (SMALL CELL), where the small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

In the embodiment of the present application, 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, or a User Equipment.

The terminal device may be a device providing voice/data connectivity to a user, e.g., a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals may be: a Mobile Phone (Mobile Phone), a tablet (Pad), a computer with wireless transceiving function (such as a notebook, a palm computer, etc.), a Mobile internet device (Mobile INTERNET DEVICE, MID), a Virtual Reality (VR) device, an augmented Reality (Augmented Reality, AR) device, an XR device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (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 vehicle-mounted device, a wearable device, a terminal device in a 5G network or a land-based communication terminal in an evolving Mobile PLMN (Public Land Mobile Network, 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.

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.

The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following specific embodiments may exist alone or in combination with one another, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 4 is a flow chart of a communication method according to an embodiment of the application, and referring to fig. 4, the method includes the following steps.

S401, the terminal equipment determines a first resource and a second resource.

When the dedicated spectrum resource bandwidth is small, e.g. 3MHz, less than the bandwidth least occupied by SSBs, the terminal device can receive the complete SSB by determining different resources for receiving SSBs.

For example, the terminal device may receive information of the portion of the PBCH in the SSB on different resources by determining the different resources.

The first resource and the second resource may be a subset of time-frequency domain resources occupied by SSBs located at the same frequency domain position, or may be a subset of time-frequency domain resources occupied by SSBs located at different frequency domain positions, that is, the frequency domain positions corresponding to the first resource and the second resource may be the same or different, which is not limited in the present application. Or the first resource and the second resource may be different time domain locations.

For example, taking the example that the first resource and the second resource are subsets of the time-frequency domain resources occupied by SSBs located at different frequency domain positions, the dedicated spectrum resource bandwidth is 3MHz, as shown in fig. 5, the first SSB and the second SSB are located at different frequency domain positions, the first resource is a position of a dashed box in the first SSB, and the second resource is a position of a dashed box in the second SSB.

S402, the network device determines a first resource and a second resource.

The related description refers to S401, and is not described here again.

It will be appreciated that S401 and S402 may be optional, and that the execution of S401 and S402 is not sequential.

S403, the network equipment sends the first information on the first resource, and correspondingly, the terminal equipment receives the first information on the first resource.

After determining the first resource and the second resource, the terminal device may receive the first information on the first resource. For example, taking fig. 5 as an example, the first information received by the terminal device on the first resource may be lower part information of the PBCH in the first SSB.

In one possible implementation, before the terminal device receives the first information on the first resource, the PSS and SSS of the SSB may be received according to the frequency domain location of the SSB where the first resource is located (such as PSS and SSS of the SSB before being received), that is, based on the locations of the PSS and SSS in the SSB, the network device may send the PSS and SSS in the SSB to the terminal device and then send the PBCH in the SSB, even in a case of a smaller bandwidth.

S404, the network equipment sends second information on the second resource, and correspondingly, the terminal equipment receives the second information on the second resource, wherein the first information and the second information are part of information in PBCH and/or demodulation reference signals in SSB.

The second information that the terminal device may receive on the second resource, for example, fig. 5, may be part of the PBCH and/or the demodulation reference signal in the second SSB, and then the terminal device may determine the complete PBCH according to the first SSB and the PBCH and/or the part of the demodulation reference signal in the second SSB to receive the complete SSB.

In this embodiment, the terminal device receives the first information on the first resource and then receives the second information on the second resource by determining the first resource and the second resource for receiving the PBCH, where the first information and the second information are part of information in the PBCH and/or the demodulation reference signal in the SSB, so that the terminal device can receive the complete PBCH, that is, complete SSB reception can be completed, and access on a smaller bandwidth can be completed without changing the SSB structure.

In the following, one way of determining the first resource and the second resource by the terminal device is described in detail by embodiment two, where in this embodiment, the first resource and the second resource may be determined by an existing synchronization grid in the NR system.

Fig. 6 is a flow chart of a communication method according to a second embodiment of the present application, where the method may be executed by a terminal device, and referring to fig. 6, the method includes the following steps.

S601, acquiring target synchronous grids and step sizes of each synchronous grid.

The current access flow of the NR system is that the terminal equipment can blindly detect the SSB on the synchronous grid, and after the SSB is detected, the control resource set of the scheduling system information and the configuration information of the search space are obtained by reading a broadcast signal (PBCH) in the SSB so as to complete the access.

In the current system, the step size of the synchronization grids within 3GHz, i.e. the distance between each synchronization grid is 1.25MHz, 1.35MHz or 1.45MHz.

The target synchronization grid may be a synchronization grid used by the terminal device when accessing the cell.

S602, determining a first resource according to a target synchronization grid.

After determining the target synchronization grid and the step size of each synchronization grid, the terminal device may determine the first resource by:

The terminal device may determine, according to the target synchronization grid, a time-frequency domain resource to which the first SSB located in the cell bandwidth belongs, and then determine, as the first resource, a resource for carrying the first PBCH and/or the first demodulation reference signal in the first SSB time-frequency domain resource.

That is, the resources used for carrying the first PBCH and/or the first demodulation reference signal are part of the resources in the first SSB time-frequency domain resources, i.e. a subset of the time-frequency domain resources to which the first SSB belongs.

S603, determining at least one auxiliary grid according to the step length and the target synchronization grid, and determining a second resource according to the auxiliary grid.

The terminal device may determine at least one auxiliary grid according to the step length of each synchronization grid and the target synchronization grid, taking a step length of 1.35MHz as an example, and the terminal device may determine a synchronization grid adjacent to the target synchronization grid as an auxiliary grid, that is, a synchronization grid with a frequency interval of 1.35MHz above and/or below the target synchronization grid as an auxiliary grid.

The terminal device may determine the second resource by:

The terminal device may determine, according to the secondary grid, a time-frequency domain resource to which the second SSB located in the cell bandwidth belongs, and then determine, as a second resource, a resource for carrying the second PBCH and/or the second demodulation reference signal in the second SSB time-frequency domain resource.

That is, the resources used for carrying the second PBCH and/or the second demodulation reference signal are part of the resources in the time-frequency domain resources to which the second SSB belongs, i.e. a subset of the time-frequency domain resources to which the second SSB belongs.

The SSB to which the first resource belongs and the SSB to which the second resource belongs may differ by one step or may differ by a plurality of steps, which is not limited in the present application.

It can be understood that the first information received by the terminal device on the first resource and the second information received on the second resource belong to the same cell, so as to realize the merging and decoding of the subsequent data.

In this embodiment, the terminal device may acquire the target synchronization grid and the step length of each synchronization grid, then determine the first resource according to the target synchronization grid, determine at least one auxiliary grid according to the step length and the target synchronization grid, and determine the second resource according to the auxiliary grid, so that the terminal device may receive the complete PBCH and/or the demodulation reference signal at the first resource and the second resource, that is, complete SSB reception may be completed, and complete access on a smaller bandwidth without changing the SSB structure.

In the following, another way of determining the first resource and the second resource by the terminal device according to the third embodiment is described in detail, and in this embodiment, the first resource and the second resource may be determined by adding an auxiliary grid to the NR system.

Fig. 7 is a flow chart of a communication method according to a third embodiment of the present application, where the method may be executed by a terminal device, and referring to fig. 7, the method includes the following steps.

S701, acquiring a target synchronization grid and a preset frequency interval.

The description of the target synchronization grid acquired by the terminal device may refer to S501 in the second embodiment, which is not described herein.

The terminal device may obtain a preset frequency interval, where the preset frequency interval may be indicated by the network device to the terminal device, or may be preset by the terminal device, which is not limited in the present application.

S702, determining a first resource according to a target synchronization grid.

The terminal device may determine the first resource according to the target synchronization grid, and illustratively, the terminal device may determine a time-frequency domain resource to which the first SSB located in the cell bandwidth belongs according to the target synchronization grid, and then determine, as the first resource, a resource for carrying the first PBCH and/or the first demodulation reference signal in the time-frequency domain resource to which the first SSB belongs.

That is, the resources used for carrying the first PBCH and/or the first demodulation reference signal are part of the resources in the time-frequency domain resources to which the first SSB belongs, i.e. a subset of the time-frequency domain resources to which the first SSB belongs.

S703, determining a second resource according to the preset frequency interval and the first resource.

After determining the first resource, the terminal device may determine a resource spaced apart from the first resource by a preset frequency interval as the second resource.

Specifically, the terminal device may determine, as the second resource, a resource where the corresponding second PBCH and/or the second demodulation reference signal is located in the second SSB to which the resource spaced from the first resource by the preset frequency interval belongs.

That is, in this embodiment, the second resource may not belong to the synchronization grid set in the NR system, but may be a resource frequency bin that is added independently.

The SSB to which the first resource belongs and the SSB to which the second resource belongs may differ by one preset frequency interval or may differ by a plurality of preset frequency intervals, which is not limited in the present application.

Likewise, the first information received by the terminal device on the first resource and the second information received on the second resource belong to the same cell, so as to realize the merging and decoding of the subsequent data.

In this embodiment, the terminal device may acquire the target synchronization grid and the preset frequency interval, then determine the first resource according to the target synchronization grid, and determine the second resource according to the preset frequency interval and the first resource, so that the terminal device may receive the complete PBCH and/or the demodulation reference signal on the first resource and the second resource, that is, complete SSB reception may be completed, and access on a smaller bandwidth may be completed without changing the SSB structure.

When the first resource and the second resource are different frequency domain resource locations, the terminal device may further receive the first information on the first resource, and after a preset period, the terminal device may receive the second information on the second resource, where the description about the preset period may refer to S801 in the fourth embodiment.

In the following, a further way of determining the first resource and the second resource by the terminal device according to the fourth embodiment is described in detail, where in this embodiment, the first resource and the second resource are different time domain resources.

Fig. 8 is a flow chart of a communication method according to a fourth embodiment of the present application, which may be executed by a terminal device, and with reference to fig. 8, the method includes the following steps.

S801, acquiring a preset period.

The terminal device may acquire a preset period, where the preset period may be indicated by the network device to the terminal device, or may be preset by the terminal device, which is not limited in the present application.

For example, the preset period refers to a period when SSBs belonging to the same cell and located at different frequency domain positions periodically appear, that is, SSBs on the target synchronization grid may appear on the secondary grid after a preset period, and then appear on the target synchronization grid after a preset period, for example, the preset period may be set to 20ms (milliseconds).

S802, two time domain positions separated by a preset period are respectively determined to be a first resource and a second resource.

After the preset period is acquired, the terminal device may determine two time domain positions separated by one preset period as the first resource and the second resource, that is, after the first resource receives the first information, the terminal device receives the second information after one preset period.

The first information and the second information are carried by SSB (secure physical layer) positioned on the same synchronous grid, the mapping sequence of the first information and the second information on the physical resource is different, and the mapping shooting of the first information and the second information on the physical resource is determined by the network equipment.

The relative time domain positions of the SSBs within each preset period are the same, and illustratively, two SSBs exist within each preset period, as shown in fig. 9. Specifically, the example of the same relative time domain position of SSB in each preset period: the first SSB is located in the 4 th to 7 th symbols of the first slot in the period in the first preset period, and the second SSB is located in the 9 th to 12 th symbols of the first slot in the period in the first preset period. The first SSB is located in the 4 th to 7 th symbols of the first slot in the period in the second preset period, and the second SSB is located in the 9 th to 12 th symbols of the first slot in the period in the second preset period.

In this embodiment, the terminal device may acquire a preset period, and then determine two time domain positions separated by one preset period as a first resource and a second resource, so that the terminal device may receive complete PBCH and/or demodulation reference signal reception on the first resource and the second resource, that is, complete SSB reception may be completed, and access on a smaller bandwidth may be completed without changing the SSB structure.

The manner in which the network device determines the first resource and the second resource may refer to the second embodiment to the fourth embodiment, and the description thereof will not be repeated here.

The method includes that when the first resource and the second resource are different time domain resources, the network device determines the first resource and the second resource, or when the network device maps the first information and the second information on the physical resource, the network device maps the first information from a high frequency point to a low frequency point to determine the first resource, and then after a preset period, the network device maps the second information to the low frequency point to the high frequency point to determine the second resource. The network device sends the first information on the first resource and sends the second information on the second resource, which may form a form as shown in fig. 9, so that the terminal device may complete the reception of the PBCH on the first resource and the second resource, that is, complete reception of the SSB.

Referring to fig. 10, fig. 10 is a schematic structural diagram of a communication device according to a fifth embodiment of the present application. The apparatus 100 includes: a first receiving module 1001 and a second receiving module 1002.

The first receiving module 1001 is configured to receive first information on a first resource.

The second receiving module 1002 is configured to receive second information on a second resource, where the first information and the second information are information of a physical broadcast channel PBCH and/or a demodulation reference signal in the synchronization signal block SSB.

In one possible implementation, the apparatus 100 further includes: and a determining module.

The determination module is used for determining a first resource and a second resource.

In one possible implementation, the first resource and the second resource are subsets of time-frequency domain resources occupied by SSBs located at the same or different frequency domain locations.

In one possible implementation, the determining module is specifically configured to:

A target synchronization grid is acquired, along with a step size for each synchronization grid.

And determining the first resource according to the target synchronization grid.

And determining at least one auxiliary grid according to the step length and the target synchronization grid, and determining a second resource according to the auxiliary grid.

and determining the time-frequency domain resource to which the first SSB positioned in the cell bandwidth belongs according to the target synchronization grid.

The method comprises the steps of obtaining a target synchronization grid and presetting a frequency interval.

And determining a second resource according to the preset frequency interval and the first resource.

Acquiring a preset period;

and respectively determining two time domain positions separated by a preset period as a first resource and a second resource.

In one possible implementation, before receiving the first information on the first resource, the first receiving module 1001 is further configured to:

The primary synchronization signal PSS and the secondary synchronization signal SSS of the SSB are received on the first resource.

In one possible implementation, the first information and the second information are carried by SSBs located on the same synchronization grid, and the mapping order of the first information and the second information on the physical resources is different.

The device of the present embodiment may be used to execute steps of a communication method in the foregoing method embodiment, and specific implementation manner and technical effects are similar, and are not repeated here.

Referring to fig. 11, fig. 11 is a schematic structural diagram of a communication device according to a sixth embodiment of the present application. The apparatus 110 includes: a first transmitting and receiving module 1101 and a second transmitting module 1102.

The first sending module 1101 is configured to send and receive first information on a first resource.

The second sending module 1102 is configured to send second information on the second resource, where the first information and the second information are information of a physical broadcast channel PBCH and/or a demodulation reference signal in the synchronization signal block SSB.

In one possible implementation, the apparatus 110 further includes: and a determining module.

Determining a first resource according to the target synchronization grid;

And determining the time-frequency domain resource to which the second SSB positioned in the cell bandwidth belongs according to the auxiliary grid.

and acquiring a preset period.

and mapping the first information from the high frequency point to the low frequency point, and determining the first resource.

After a preset period, mapping the second information to the low-frequency point and the high-frequency point, and determining a second resource.

In one possible implementation, before the first information is sent on the first resource, the first sending module 1101 is further configured to:

The primary synchronization signal PSS and the secondary synchronization signal SSS of the SSB are transmitted on the first resource.

Fig. 12 is a schematic structural diagram of an electronic device according to a seventh embodiment of the present application, as shown in fig. 12, where the network device 120 may include: at least one processor 1201 and memory 1202.

A memory 1202 for storing programs. In particular, the program may include program code including computer-operating instructions.

The Memory 1202 may include random access Memory (Random Access Memory, RAM) and may also include Non-volatile Memory (Non-volatile Memory), such as at least one disk Memory.

The processor 1201 is configured to execute computer-executable instructions stored in the memory 1202 to implement the methods described in the foregoing method embodiments. The processor 1201 may be a central processing unit (Central Processing Unit, CPU), or an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present application.

Optionally, the electronic device 120 may further include: a communication interface 1203. In a specific implementation, if the communication interface 1203, the memory 1202 and the processor 1201 are implemented independently, the communication interface 1203, the memory 1202 and the processor 1201 may be connected to each other by a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (PERIPHERAL COMPONENT, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. Buses may be divided into address buses, data buses, control buses, etc., but do not represent only one bus or one type of bus.

Alternatively, in a specific implementation, if the communication interface 1203, the memory 1202 and the processor 1201 are integrated on a chip, the communication interface 1203, the memory 1202 and the processor 1201 may complete communication through internal interfaces.

The electronic device 120 may be a chip, a chip module, an IDE, a base station, a terminal device, etc.

The network device of the present embodiment may be used to execute the technical solutions of the foregoing method embodiments, and the specific implementation manner and the technical effects are similar, and are not repeated herein.

An eighth embodiment of the present application provides a computer-readable storage medium, which may include: various media capable of storing computer execution instructions, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a RAM, a magnetic disk, or an optical disc, etc., specifically, the computer execution instructions are stored in the computer readable storage medium, and when the computer execution instructions are executed by a processor, the computer execution instructions are used to implement the technical schemes shown in the above method embodiments, and specific implementation manners and technical effects are similar, and are not repeated herein.

An embodiment of the present application provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the technical scheme shown in the foregoing method embodiment is implemented, and specific implementation manner and technical effect are similar, and are not repeated herein.

An embodiment of the present application provides a chip, on which a computer program is stored, and when the computer program is executed by the chip, the method shown in the foregoing method embodiment is implemented.

In one possible implementation, the chip may also be a chip module.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A method of communication, the method comprising:

Receiving first information on a first resource;

2. The method according to claim 1, wherein the method further comprises:

Determining the first resource and the second resource.

3. The method of claim 2, wherein the first resource and the second resource are subsets of time-frequency domain resources occupied by SSBs located in the same or different frequency domain locations.

4. A method according to claim 3, wherein said determining a first resource and a second resource comprises:

determining a first resource according to the target synchronization grid;

5. The method of claim 4, wherein the determining the first resource from the target synchronization grid comprises:

6. The method of claim 5, wherein the determining the second resource from the secondary grid comprises:

7. The method of any of claims 3-6, wherein the SSB to which the first resource belongs differs from the SSB to which the second resource belongs by one step.

8. A method according to claim 3, wherein said determining a first resource and a second resource comprises:

acquiring a target synchronization grid and a preset frequency interval;

Determining the first resource according to the target synchronization grid;

9. The method of claim 8, wherein the SSB to which the first resource belongs differs from the SSB to which the second resource belongs by a predetermined frequency interval.

10. The method of claim 2, wherein the first resource and the second resource are different time domain locations.

11. The method of claim 10, wherein the determining the first resource and the second resource comprises:

Acquiring a preset period;

12. The method of any of claims 1-11, wherein prior to receiving the first information on the first resource, the method further comprises:

13. The method according to any of claims 3-9, wherein the first information and the second information belong to the same cell.

14. The method according to claim 10 or 11, wherein the first information and the second information are carried by SSBs located on the same synchronization grid, and wherein the mapping order of the first information and the second information on physical resources is different.

15. The method of claim 14, wherein the relative time domain positions of the first information and the second information are the same.

16. A method of communication, the method comprising:

transmitting first information on a first resource;

17. The method of claim 16, wherein the method further comprises:

Determining the first resource and the second resource.

18. The method of claim 17, wherein the first resource and the second resource are subsets of time-frequency domain resources occupied by SSBs located in the same or different frequency domain locations.

19. The method of claim 18, wherein the determining the first resource and the second resource comprises:

determining a first resource according to the target synchronization grid;

20. The method of claim 19, wherein the determining the first resource from the target synchronization grid comprises:

21. The method of claim 20, wherein the determining the second resource from the secondary grid comprises:

And determining the time-frequency domain resource to which the second SSB belongs and the resource used for bearing the second PBCH and/or the second demodulation reference signal as a second resource.

22. The method of any of claims 19-21, wherein the SSB to which the first resource belongs differs from the SSB to which the second resource belongs by one step.

23. The method of claim 18, wherein the determining the first resource and the second resource comprises:

acquiring a target synchronization grid and a preset frequency interval;

Determining the first resource according to the target synchronization grid;

24. The method of claim 23, wherein the SSB to which the first resource belongs differs from the SSB to which the second resource belongs by a predetermined frequency interval.

25. The method of claim 17, wherein the first resource and the second resource are different time domain locations.

26. The method of claim 25, wherein the determining the first resource and the second resource comprises:

Acquiring a preset period;

27. The method of claim 25, wherein the determining the first resource and the second resource comprises:

28. The method of any of claims 16-27, wherein prior to transmitting the first information on the first resource, the method further comprises:

29. The method according to any of claims 17-24, wherein the first information and the second information belong to the same cell.

30. The method of any of claims 25-27, wherein the first information and the second information are carried by SSBs located on a same synchronization grid, the first information and the second information being mapped in a different order on physical resources.

31. The method of claim 30, wherein the first information and the second information are at the same relative time domain location.

32. A communication device, comprising:

A first receiving module for receiving first information on a first resource;

33. A communication device, comprising:

34. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;

The memory stores computer-executable instructions;

The processor executes computer-executable instructions stored in the memory to implement the communication method of any one of claims 1-15.

35. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;

The memory stores computer-executable instructions;

The processor executes computer-executable instructions stored in the memory to implement the communication method of any one of claims 16-31.

36. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to implement the communication method of any of claims 1-31.

37. A computer program product comprising a computer program which, when executed by a processor, implements the communication method of any of claims 1-31.