WO2022021440A1

WO2022021440A1 - Wireless communication method, terminal device and network device

Info

Publication number: WO2022021440A1
Application number: PCT/CN2020/106445
Authority: WO
Inventors: 吴作敏
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2022-02-03
Also published as: CN116250317A; CN116250317A8

Abstract

Embodiments of the present invention provide a wireless communication method, a terminal device and a network device. When the network device indicates the position of a transmitted/untransmitted SSB, indication information may be used to indicate the frequency domain position of the SSB, and/or, a footprint corresponding to said SSB. The method can thus be used for the terminal device to complete data rate matching between an initial access and a downlink reception. Embodiments of the present invention may comprise: a terminal device receives first indication information sent by a network device, said first indication information being used for indicating the frequency domain position of a synchronization signal block (SSB), and/or, the footprint corresponding to said SSB.

Description

Wireless communication method, terminal device and network device

technical field

The present application relates to the field of communications, and in particular, to a wireless communication method, terminal device and network device.

Background technique

In a non-terrestrial network (Non Terrestrial Network, NTN) system, when a network device (such as a satellite) serves multiple terrestrial coverage cells (footprints) through multiple beams, the multiple footprints can correspond to The same cell identity (Identity, ID). In addition, when the frequency reuse factor is greater than 1, different footprints can correspond to different frequency resources. In these scenarios, the existing initial access mechanism needs to be enhanced.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a wireless communication method, a terminal device, and a network device, so that when the network device indicates the location of the transmitted/untransmitted SSB, it can indicate the frequency domain location of the SSB through indication information, and/or the SSB The corresponding coverage cell is used for the terminal equipment to complete the data rate matching between initial access and downlink reception.

A first aspect of the embodiments of the present invention provides a wireless communication method, which may include: a terminal device receiving first indication information sent by a network device, where the first indication information is used to indicate a frequency domain location of a synchronization signal block SSB, and/ Or, the coverage cell corresponding to the SSB.

A second aspect of the embodiments of the present invention provides a wireless communication method, which may include: a network device sending first indication information to a terminal device, where the first indication information is used to indicate a frequency domain location of a synchronization signal block SSB, and/or , the coverage cell corresponding to the SSB.

Another aspect of the embodiments of the present invention provides a terminal device, which has a function of indicating completion of data rate matching between initial access and downlink reception. This function can be implemented by hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

Another aspect of the embodiments of the present invention provides a network device, which has a function of instructing completion of data rate matching between initial access and downlink reception. This function can be implemented by hardware or by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the above functions.

Another aspect of the embodiments of the present invention provides a terminal device, including: a memory storing executable program codes; a transceiver coupled to the memory; the transceiver is configured to execute the method described in the first aspect of the embodiments of the present invention method.

Another aspect of the embodiments of the present invention provides a terminal device, including: a memory storing executable program codes; a transceiver coupled to the memory; the transceiver is configured to execute the method described in the second aspect of the embodiments of the present invention method.

Yet another aspect of the embodiments of the present invention provides a computer-readable storage medium, comprising instructions, which, when executed on a computer, cause the computer to perform the method as described in the first aspect or the second aspect of the present invention.

Yet another aspect of the embodiments of the present invention provides a computer program product comprising instructions, which, when run on a computer, cause the computer to perform the method as described in the first aspect or the second aspect of the present invention.

Another aspect of the embodiments of the present invention provides a chip, where the chip is coupled to a memory in the terminal device, so that the chip invokes program instructions stored in the memory when running, so that the terminal device executes the program as described above The method described in the first aspect of the invention.

Another aspect of the embodiments of the present invention provides a chip, where the chip is coupled to a memory in the network device, so that the chip invokes program instructions stored in the memory when running, so that the network device executes the program as described herein. The method described in the second aspect of the invention.

In the technical solution provided by the embodiment of the present invention, the terminal device receives first indication information sent by the network device, where the first indication information is used to indicate the frequency domain position of the synchronization signal block SSB, and/or the coverage corresponding to the SSB community. The terminal device may complete initial access and data rate matching of downlink reception according to the first indication information. Through the method of the embodiment of the present application, the terminal equipment located on the ground with different coverage cells can correctly complete the initial access of the NTN system and the rate matching of the downlink data reception.

Description of drawings

1A is a schematic diagram of a partial SSB pattern for FR1 in an NR system under different conditions;

FIG. 1B is a schematic diagram of a partial SSB pattern for FR2 in an NR system under different conditions;

FIG. 1C is a schematic diagram of a group of SSBs in one field, taking the SSB pattern in Case A as an example;

2A is a schematic diagram of an NTN scenario to which an embodiment of the present invention is applied;

2B is a schematic diagram of a frequency reuse factor of 1 in an NTN scene;

2C is a schematic diagram of a frequency reuse factor of 3 in an NTN scene;

2D is a schematic diagram of a frequency reuse factor of 2 in an NTN scene;

3A is a system architecture diagram of a communication system to which an embodiment of the present invention is applied;

3B is a system architecture diagram of a communication system to which an embodiment of the present invention is applied;

3C is a system architecture diagram of a communication system to which an embodiment of the present invention is applied;

4A is an exemplary diagram of a beam-based NTN network deployment scenario in an embodiment of the present invention;

4B is an exemplary diagram of a manner in which a network device performs SSB transmission in an embodiment of the present invention;

4C is an exemplary diagram of a manner in which a network device performs SSB transmission in an embodiment of the present invention;

4D is an exemplary diagram of a manner in which a network device performs SSB transmission in an embodiment of the present invention;

4E is an exemplary diagram of a manner in which a network device performs SSB transmission in an embodiment of the present invention;

5 is a schematic diagram of an embodiment of a method for transmitting a synchronization signal block SSB in an embodiment of the present application;

6A is a schematic diagram of a terminal device in an embodiment of the present application;

6B is another schematic diagram of a terminal device in an embodiment of the present application;

7 is a schematic diagram of a network device in an embodiment of the present application;

8 is another schematic diagram of a terminal device in an embodiment of the present application;

FIG. 9 is another schematic diagram of a network device in an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

The following is a brief description of some terms involved in this application, as follows:

The research on the next generation (New Radio, NR) system currently mainly considers two frequency bands, the frequency band FR1 (Frequency range 1) and the frequency band FR2 (Frequency range 2). Among them, FR1 and FR2 include the frequency domain range As shown in Table 1. It should be understood that the embodiments of the present application may be applied to FR1 and FR2 frequency bands, and may also be applied to other frequency bands, such as a frequency band of 52.6 GHz to 71 GHz, or a frequency band of 71 GHz to 100 GHz, which is not limited in this application.

频段定义Band Definition	对应频段范围Corresponding frequency range
FR1FR1	410MHz–7.125GHz410MHz–7.125GHz
FR2FR2	24.25GHz–52.6GHz24.25GHz–52.6GHz

Table 1

The research of NR system includes non-terrestrial communication network equipment (Non Terrestrial Network, NTN) technology. NTN generally uses satellite communication to provide communication services to terrestrial users. Compared with terrestrial cellular network communication, satellite communication has many unique advantages. First of all, satellite communication is not limited by the user's geographical area. For example, general terrestrial communication cannot cover areas such as oceans, mountains, deserts, etc. where communication equipment cannot be set up or cannot be covered due to sparse population. For satellite communication, due to a single Satellites can cover a large ground, and satellites can orbit around the earth, so theoretically every corner of the earth can be covered by satellite communications. Secondly, satellite communication has great social value. Satellite communications can be covered at low cost in remote mountainous areas and poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technologies, which is conducive to narrowing the digital divide with developed regions and promoting development in these areas. Thirdly, the satellite communication distance is long, and the communication cost does not increase significantly when the communication distance increases; finally, the satellite communication has high stability and is not limited by natural disasters.

Communication satellites are classified into LEO (Low-Earth Orbit, low earth orbit) satellites, MEO (Medium-Earth Orbit, medium earth orbit) satellites, GEO (Geostationary Earth Orbit, geosynchronous orbit) satellites, HEO (High Earth orbit) satellites according to the different orbital altitudes. Elliptical Orbit, high elliptical orbit) satellites, etc. The main research at this stage is LEO and GEO.

For LEO satellites, the orbital altitude ranges from 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between terminals is generally less than 20ms. The maximum satellite viewing time is 20 minutes. The signal propagation distance is short, the link loss is low, and the transmit power requirements of the terminal are not high.

For the GEO satellite, the orbital altitude is 35786km, and the rotation period around the earth is 24 hours. The signal propagation delay of single-hop communication between users is generally 250ms.

In order to ensure the coverage of satellites and improve the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A satellite can form tens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter ground area.

The initial access in the NR system is accomplished through a synchronization signal block (Synchronizing Signal/PBCH Block, SSB or SS/PBCH block). The SSB includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a physical broadcast channel (Physical Broadcast Channel, PBCH).

In the NR system, the synchronization signal block SSB pattern supported by FR1 includes 3 cases (Case A, Case B, Case C), and the SSB pattern supported by FR2 includes 2 cases (Case D, Case E). One SSB transmission opportunity may include one or more SSBs, one SSB includes 4 symbols in the time domain, and a group of SSB transmission opportunities should complete transmission within one half frame (5ms). Suppose the index of the first symbol of the first slot in a field is symbol 0:

(1) Case A-15kHz subcarrier spacing:

1) The index of the first symbol of the SSB includes {2,8}+14*n;

2) For non-shared spectrum:

①The carrier frequency is less than or equal to 3GHz, n=0,1;

②The carrier frequency in FR1 is greater than 3GHz, n=0,1,2,3;

3) For shared spectrum, n=0,1,2,3,4.

(2) Case B-30kHz subcarrier spacing:

1) The index of the first symbol of SSB includes {4,8,16,20}+28*n;

①The carrier frequency is less than or equal to 3GHz, n=0;

②The carrier frequency in FR1 is greater than 3GHz, and n=0,1.

(3) Case C-30kHz subcarrier spacing:

1) The index of the first symbol of the SSB includes {2,8}+14*n;

2) For non-shared spectrum and belong to paired spectrum (for example, frequency division duplex (Frequency Division Duplex, FDD) scenario);

①The carrier frequency is less than or equal to 3GHz, n=0,1;

②The carrier frequency in FR1 is greater than 3GHz, n=0,1,2,3;

3) For non-shared spectrum and belong to non-paired spectrum (for example, Time Division Duplex (TDD) scenario);

①The carrier frequency is less than or equal to 2.4GHz, n=0,1;

②The carrier frequency in FR1 is greater than 2.4GHz, and n=0,1,2,3.

4) For shared spectrum, n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

(4) Case D-120kHz subcarrier spacing:

1) The index of the first symbol of SSB includes {4,8,16,20}+28*n;

①For the carrier frequency in FR2, n=0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18.

(5) Case E-240kHz subcarrier spacing:

1) The index of the first symbol of the SSB includes {8, 12, 16, 20, 32, 36, 40, 44}+56*n;

①For the carrier frequency in FR2, n=0,1,2,3,5,6,7,8.

As shown in FIG. 1A , it is a schematic diagram of partial SSB patterns of FR1 under different conditions in an NR system. As shown in FIG. 1B , it is a schematic diagram of partial SSB patterns of FR2 under different conditions in the NR system. As shown in FIG. 1C , it is a schematic diagram of a group of SSB transmission opportunities in one half frame, taking the SSB pattern in Case A as an example.

In the NR system, the initial access process of the terminal equipment can be completed by detecting the synchronization signal block (Synchronization Signal/PBCH Block, SSB or SS/PBCH block) on the synchronization grid (Sync Raster). SSB transmits through the Discovery Burst Transmission Window or the SSB Transmission Opportunity Window. The discovery signal transmission opportunity window may also be referred to as the DRS transmission opportunity window. The DRS transmission opportunity window or the SSB transmission opportunity window occurs periodically, and the period may be configured by the network device through high-layer parameters. A set of candidate positions for SSB transmission may be included in the DRS transmission opportunity window or the SSB transmission opportunity window. For FR1, a set of SSB transmission opportunities can include up to 8 SSBs, and for FR2, a set of SSB transmission opportunities can include up to 64 SSBs.

SSB includes two types: one is the SSB used to determine the cell, also known as cell-defining SSB, the cell-defining SSB is associated with the system message of the cell, such as the transmission of system message block (system information block 1, SIB1), etc., After the terminal device finds the cell-defining SSB, it can complete the initial access to the cell. The cell-defining SSB is always transmitted on the sync grid. The cell-defining SSB can also be used for SSB-based measurement in addition to the initial access of the cell. The other is the SSB that is not used to determine the cell, also known as the non cell-defining SSB, the system message transmission of the non cell-defining SSB not associated with the cell, and the physical broadcast channel (Physical Broadcast Channel, PBCH) of the non cell-defining SSB. Including indication information, which is used to indicate the location of the cell-defining SSB. After the terminal device finds the non cell-defining SSB, it can receive the cell-defining SSB according to the indication information, thereby completing the initial access of the cell. A non-cell-defining SSB may or may not be transmitted on a synchronized grid. The non cell-defining SSB is mainly used for terminal equipment to measure based on SSB.

The network device will indicate the actually sent SSB through indication information, where the indication information includes ssb-PositionsInBurst in SIB1 and SSB position indication information in the transmission opportunity in the serving cell common configuration (ServingCellConfigCommon); for example, the configuration provided by ssb-PositionsInBurst information. The terminal device expects the configuration information provided by ssb-PositionsInBurst in ServingCellConfigCommon to be the same as the configuration information provided by ssb-PositionsInBurst in SIB1. The terminal device can determine the actually sent SSB through the indication information of the network device, such as ssb-PositionsInBurst. The indication information corresponds to a bitmap, wherein the first bit in the bitmap corresponds to SSB index 0, the second bit in the bitmap corresponds to SSB index 1, and so on, and so on. As an example, if the bit is 0, it is used to indicate that the SSB corresponding to the bit is not transmitted, and if the bit is 1, it is used to indicate that the SSB corresponding to the bit is transmitted. For example, assuming that the bitmap corresponding to ssb-PositionsInBurst on a serving cell is [10100000], it means that the SSB indices of the SSB sent on the serving cell are SSB 0 and SSB 2.

When receiving the physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) scheduled by SI-RNTI (System Information Radio Network Temporary Identifier, system information wireless network device temporary identifier) and the downlink control information corresponding to SI-RNTI (Downlink Control Information, When the system information indication included in the DCI) is 0 (or in other words, when the PDSCH scheduled by the SI-RNTI includes SIB1 information), the terminal device should assume that there is no RE in the resource element (Resource element, RE) included in the received PDSCH. Used for SSB transfers.

When the PDSCH scheduled by SI-RNTI is received and the system information indicator included in the DCI corresponding to the SI-RNTI is 1 (or when the PDSCH scheduled by SI-RNTI includes system information other than SIB1), or the RA- RNTI (Random Access RNTI, Random Access RNTI), MsgB-RNTI, P-RNTI (Paging RNTI, Paging RNTI) or TC-RNTI (Temporary C-RNTI, Temporary C-RNTI) scheduled PDSCH, or receive cyclic The redundancy coding (Cyclic Redundancy Code, CRC) scrambling code is C-RNTI (Cell RNTI, cell RNTI), MCS-C-RNTI (Modulation and Coding Scheme C-RNTI, modulation and coding scheme C-RNTI) or CS-RNTI ( Configured Scheduling RNTI, when the PDSCH scheduled by the Physical Downlink Control Channel (PDCCH) of the Configured Scheduling RNTI, or the PDSCH scheduled by the Semi-Persistent Scheduling (SPS), the terminal device should follow the instruction information such as ssb -PositionsInBurst to assume the transmitted SSB, if the Physical Resource Block (PRB) in the scheduled PDSCH overlaps the PRB used to transmit the SSB, then the terminal device shall assume this overlap on the symbols transmitted by the SSB The resources corresponding to the PRB (or resources used for SSB transmission) are not used for PDSCH transmission.

In the NTN scenario shown in the embodiment of the present application, one satellite may serve multiple footprints through multiple beams, and one footprint may be considered as a coverage area on the ground, and may also be called a coverage cell. The multiple footprints correspond to the same cell identity (Identity, ID) or correspond to the same satellite cell. As shown in FIG. 2A , it is a schematic diagram of an NTN scenario to which an embodiment of the present invention is applied.

A footprint can correspond to one or more beams. Specifically, taking one footprint corresponding to one beam as an example, there are three situations in the beam-based NTN network deployment scenario:

Case 1: the frequency re-use factor is 1, as shown in FIG. 2B , which is a schematic diagram of the frequency re-use factor being 1 in the NTN scene.

Case 2: the frequency re-use factor is 3, as shown in FIG. 2C , which is a schematic diagram of the frequency re-use factor being 3 in the NTN scene.

Case 3: The frequency re-use factor is 2, as shown in FIG. 2D , which is a schematic diagram of the frequency re-use factor being 2 in the NTN scene.

However, in the NTN system, when a network device (such as a satellite) serves multiple coverage cells (footprints) on the ground through multiple beams, and the multiple footprints correspond to the same cell ID, different footprints May correspond to different frequency bands in the system bandwidth. In the embodiment of the present application, how the terminal device performs initial access to the cell or rate matching of downlink data reception based on the SSB is the main issue discussed in the present application.

Exemplarily, FIG. 3A is a schematic structural diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 3A , the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). The network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.

FIG. 3A exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The present application The embodiment does not limit this.

Exemplarily, FIG. 3B is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 3B , a terminal device 1101 and a satellite 1102 are included, and wireless communication can be performed between the terminal device 1101 and the satellite 1102 . The network formed between the terminal device 1101 and the satellite 1102 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 3B , the satellite 1102 can function as a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under the system architecture, satellite 1102 may be referred to as a network device. Optionally, the communication system may include multiple network devices 1102, and the coverage of each network device 1102 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.

Exemplarily, FIG. 3C is a schematic structural diagram of another communication system provided by an embodiment of the present application. Referring to FIG. 3C , it includes a terminal device 1201 , a satellite 1202 and a base station 1203 , the terminal device 1201 and the satellite 1202 can communicate wirelessly, and the satellite 1202 and the base station 1203 can communicate. The network formed between the terminal device 1201, the satellite 1202 and the base station 1203 may also be referred to as NTN. In the architecture of the communication system shown in FIG. 3C , the satellite 1202 may not have the function of the base station, and the communication between the terminal device 1201 and the base station 1203 needs to be relayed through the satellite 1202 . Under such a system architecture, the base station 1203 may be referred to as a network device. Optionally, the communication system may include multiple network devices 1203, and the coverage of each network device 1203 may include other numbers of terminal devices, which are not limited in this embodiment of the present application.

It should be noted that FIG. 3A-FIG. 3C only illustrate the system to which the present application is applied in the form of examples. Of course, the methods shown in the embodiments of the present application may also be applied to other systems, for example, a 5G communication system, an LTE communication system, etc. , which is not specifically limited in the embodiments of the present application.

Optionally, the wireless communication system shown in FIG. 3A-FIG. 3C may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF). , which is not limited in the embodiments of the present application.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

Wherein, the network equipment may further include access network equipment and core network equipment. That is, the wireless communication system further includes a plurality of core networks for communicating with the access network equipment. The access network equipment may be a long-term evolution (long-term evolution, LTE) system, a next-generation (mobile communication system) (next radio, NR) system, or an authorized auxiliary access long-term evolution (authorized auxiliary access long-term evolution, LAA- The evolved base station (evolutional node B, may be referred to as eNB or e-NodeB for short) in the LTE) system is a macro base station, a micro base station (also called a "small base station"), a pico base station, an access point (AP), Transmission site (transmission point, TP) or new generation base station (new generation Node B, gNodeB), etc.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment (gNB) in the PLMN network in the future evolution or the network equipment in the NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) satellite ) satellite, etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or it may belong to a base station corresponding to a small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system may be referred to as a communication device. Taking the communication system shown in FIG. 3A-FIG. 3B as an example, the communication device may include a network device and a terminal device with a communication function, and the network device and the terminal device may be the specific devices described in the embodiments of the present invention, which are not repeated here. To repeat; the communication device may further include other devices in the communication system, for example, other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

The communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, also can be applied to a dual connectivity (Dual Connectivity, DC) scenario, and can also be applied to a standalone (Standalone, SA) network deployment scenario.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

Optionally, the embodiments of the present application may be applied to a non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, and may also be applied to a terrestrial communication network (Terrestrial Networks, TN) system.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

Optionally, the indication information in this embodiment of the present application includes physical layer signaling such as downlink control information (Downlink Control Information, DCI), radio resource control (Radio Resource Control, RRC) signaling, and a media access control unit (Media Access Control Unit). At least one of Access Control Control Element, MAC CE).

Optionally, the high-level parameters or high-level signaling in the embodiments of the present application include at least one of radio resource control (Radio Resource Control, RRC) signaling and media access control element (Media Access Control Control Element, MAC CE). kind.

The technical solutions of the present invention will be further described below by way of examples. The examples of the present application include part or all of the following contents:

In this application, the cell IDs (cell IDs) corresponding to multiple coverage cells (footprints, FPs) are the same. In case 2 in the above content, one coverage cell (footprint) corresponds to one beam and the SSB transmission pattern is Case A As an example to illustrate, for scenario 1, or scenario 3, or a scenario in which one footprint corresponds to multiple beams, or other SSB transmission patterns, it can be obtained similarly by the method in this application, and will not be described in detail below.

Taking the case 2 corresponding to Fig. 2C, where each frequency resource corresponds to a bandwidth part (Band Width Part, BWP) as an example to deploy the network, then one footprint corresponds to one BWP, and different BWPs in the NTN network can correspond to different SSBs index. As shown in FIG. 4A , it is an example diagram of a beam-based NTN network deployment scenario in an embodiment of the present invention. As shown in FIG. 4A, B represents a beam, or an index of an SSB, for example, B0 refers to SSB0, B1 refers to SSB1, and others are similar. FP represents the coverage cell on the ground shown by the hexagon, for example, FP0 represents that the ID of the coverage cell is 0, FP1 represents that the ID of the coverage cell is 1, and so on. BWP0 indicates that the ID of the BWP corresponding to the coverage cell is 0, BWP1 indicates that the ID of the BWP corresponding to the coverage cell is 1, and so on.

FIG. 4B to FIG. 4E are exemplary diagrams of several manners in which a network device performs SSB transmission in an embodiment of the present invention. It should be understood that this SSB transmission manner is only an example, and the embodiments of the present application may also be applied to other SSB transmission scenarios, which are not limited in the present application. In these examples, it is assumed that the number of SSBs that the network device needs to send is 8, that is, a group of SSB transmissions includes 8 SSBs, wherein different beams corresponding to different BWPs are used to transmit different or the same SSBs index, the BWP identifier and the SSB index can be in a one-to-many relationship. As shown in Figure 4A, the corresponding beams in BWP0 are SSB0 and SSB7, the corresponding beams in BWP1 are SSB1, SSB3 and SSB5, and the corresponding beam in BWP2 is SSB2 , SSB4 and SSB6.

The following describes several ways for network devices to perform SSB transmission, as follows:

Mode 1: Referring to FIG. 4B , the SSB transmission method is different from that of Rel-15. According to the relationship between the SSB index and the BWP identifier, the SSB of the cell-defining is sent on the corresponding BWP. That is, SSB0 and SSB7 are sent through BWP0, SSB1, SSB3 and SSB5 are sent through BWP1, and SSB2, SSB4 and SSB6 are sent through BWP2.

Optionally, in this case, BWP0, BWP1 and BWP2 can all be considered as initial BWPs. In other words, from the perspective of a network device, a cell may include multiple initial BWPs.

Optionally, in this case, from the perspective of the terminal device, it can be considered that there is only one initial BWP.

Optionally, in this case, for convenience of indication, from the perspective of a terminal device, it may also be considered that there are multiple initial BWPs.

Optionally, since the ID of the initial BWP is usually 0, in this case, it can also be considered that the IDs corresponding to the three BWPs in FIG. 4B are all BWP0, or the three BWPs are respectively the first BWP in the BWP0, The second BWP in BWP0 and the third BWP in BWP0.

Manner 2: Referring to FIG. 4C , the SSB transmission method is different from that of Rel-15. Assuming that BWP0 is the initial BWP in the cell, the group of SSBs is transmitted through BWP0, and the group of SSBs are cell-defining SSBs. In addition, some SSBs in the group of SSBs are also transmitted on BWP1 and BWP2, and the BWP1 or BWP2 has an associated relationship with some of the SSBs in the group of SSBs transmitted on BWP0. That is, SSB1, SSB3, and SSB5 are also sent through BWP1, and SSB2, SSB4, and SSB6 are also sent through BWP2. Among them, the SSBs transmitted on BWP1 and BWP2 are non-cell-defining SSBs.

Optionally, the SSB transmitted on BWP1 and BWP2 also needs to be sent on the synchronization grid.

Mode 3: Referring to FIG. 4D , the SSB transmission method is similar to that of Rel-15, assuming that BWP0 is the initial BWP in the cell, the group of SSBs is transmitted through BWP0, and the group of SSBs are cell-defining SSBs. In addition, this group of SSBs is also transmitted on BWP1 and BWP2, and the SSBs transmitted on BWP1 and BWP2 are non-cell-defining SSBs.

Manner 4: Referring to FIG. 4E , the SSB transmission method is the same as that of Rel-15, assuming that BWP0 is the initial BWP in the cell, the group of SSBs is transmitted through BWP0, and the group of SSBs are cell-defining SSBs. There may be no SSB transmission on BWP1 and/or BWP2.

As shown in FIG. 5, it is a schematic diagram of an embodiment of the transmission method of the synchronization signal block SSB in the embodiment of the present application, which may include:

501. The network device sends first indication information to the terminal device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB. The terminal device receives the first indication information sent by the network device.

502. The terminal device determines, according to the first indication information, a frequency domain location of the SSB, and/or a coverage cell corresponding to the SSB. It can be understood that step 502 is an optional step.

Optionally, the first indication information includes indication information of a frequency domain location of the synchronization signal block SSB, and/or indication information of a coverage cell corresponding to the SSB. Correspondingly, the terminal device determines the frequency domain position of the SSB according to the indication information of the frequency domain position of the SSB, and/or determines the coverage cell of the SSB according to the indication information of the coverage cell corresponding to the SSB.

Optionally, the first indication information includes indication information of a frequency domain location of at least one SSB, and/or indication information of a coverage cell corresponding to the at least one SSB. Correspondingly, the terminal device determines the frequency domain position of the at least one SSB according to the indication information of the frequency domain position of the at least one SSB, and/or, according to the indication information of the coverage cell corresponding to the at least one SSB, determines the coverage cell corresponding to the at least one SSB .

Optionally, the first indication information is used to indicate at least two frequency domain positions of the SSB.

Optionally, the indication information of the frequency domain position of the SSB includes: indication information of at least two frequency domain positions of the SSB. Correspondingly, the terminal device determines at least two frequency domain positions of the SSB according to the indication information of the at least two frequency domain positions of the SSB.

Optionally, the frequency domain position of the SSB, or the indication information of the frequency domain position of the SSB, may include at least one of the following:

the number of the synchronization grid transmitted by the SSB to indicate the synchronization grid transmitted by the SSB;

The identification ID of the BWP transmitted by the SSB to indicate the bandwidth part BWP transmitted by the SSB;

The frequency domain position of the SSB in the BWP transmitted by the SSB may be understood as the specific frequency domain position in different BWPs transmitted by the SSB;

The identifier ID of the resource block (Resource Block, RB) set of the SSB transmission, to indicate the resource block RB set of the SSB transmission;

And, the frequency domain position of the SSB in the RB set transmitted by the SSB may be understood as a specific frequency domain position in different RB sets transmitted by the SSB.

Optionally, the RB may also include a PRB.

Optionally, the frequency domain position of the SSB in the BWP transmitted by the SSB may include at least one of the following:

The RB number of the first RB transmitted by the SSB in the BWP; for example, SSB1 is sent through BWP1, BWP1 includes 50 PRBs numbered 0 to 49, and SSB1 includes 20 PRBs, assuming that the first RB transmitted by SSB1 The number of the PRBs is 10, and the PRBs occupied by the SSB1 in the BWP1 are PRB10 to PRB29.

The frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP (eg, the number of RBs offset); for example, SSB1 is sent through BWP1, and BWP1 includes 50 PRBs, numbered 0 to 49, SSB1 includes 20 PRBs, assuming that the frequency domain offset between the first PRB transmitted by SSB1 and the first RB in BWP1 is 5 PRBs, then the number of the first PRB transmitted by SSB1 is 5. The PRBs occupied by SSB1 in BWP1 are PRB5 to PRB24.

The position of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP; for example, the BWP includes 3 synchronization grids, and the position here may refer to the synchronization grid transmitted by the SSB as the three synchronization grids The number of synchronization grids in ;

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP; for example, the synchronization grid number here can be understood as an absolute number.

Optionally, the coverage cell corresponding to the SSB, or the indication information of the coverage cell corresponding to the SSB, may include at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.

Optionally, the first indication information is used to indicate at least one of the following:

The association relationship between the index of at least one SSB in the SSB and the synchronization grid transmitted by the at least one SSB. For example, the first indication information is used to indicate the SSB transmitted (or not transmitted) in the first SSB transmission opportunity on the first synchronization grid.

The association relationship between the index of at least one SSB in the SSB and the index of the BWP transmitted by the at least one SSB. For example, a BWP may include one SSB transmission opportunity, the BWP index has an associated relationship with the SSB index in the SSB transmission opportunity on the BWP, or the first indication information is used to indicate the first SSB transmission opportunity on the first BWP. Transmitted (or untransmitted) SSB.

The association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB. For example, if the BWPs that transmit cell-defining SSBs are all BWP 0, then the multiple SSB transmission opportunities transmitted by BWP0 are sorted according to the frequency domain position from small to large, and the association between the SSB index and the SSB transmission opportunity index in BWP 0 is notified, Or, the first indication information is used to indicate the SSB transmitted (or not transmitted) in the first SSB transmission opportunity corresponding to the first SSB transmission opportunity index on the first BWP.

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell.

The association relationship between the index of at least one SSB in the SSB and the index of the RB set transmitted by the at least one SSB. For example, one RB set may include one SSB transmission opportunity, and the RB set index has an associated relationship with the SSB index in the SSB transmission opportunity on the RB set, or the first indication information is used to indicate the first RB set on the first RB set. SSB transmitted (or not transmitted) in the SSB transmission opportunity.

The relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the transmission of the at least one SSB. For example, if the RB sets for transmitting cell-defining SSBs are all RB set 0, the multiple SSB transmission opportunities transmitted by RB set 0 are sorted according to the frequency domain position from small to large, and the SSB index and the SSB transmission opportunities in RB set 0 are notified. The association relationship of the indexes, or the first indication information is used to indicate the SSB transmitted (or not transmitted) in the first SSB transmission opportunity corresponding to the index of the first SSB transmission opportunity on the first RB set.

The association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB.

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP.

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.

As an example, the association relationship between the coverage cell ID and the BWP ID includes: q=p mod N, where p represents the coverage cell ID, q represents the BWP ID, and N represents the number of BWPs. For example, assuming that the frequency band in a cell can be divided into 3 BWPs, the BWP IDs q corresponding to the coverage cells whose coverage cell ID p is 0 to 9 are: 0, 1, 2, 0, 1, 2, 0, 1, 2. 0.

As an example, the association between the coverage cell ID and the SSB index includes: s=p mod N, where p represents the coverage cell ID, s represents the SSB index, and M represents the number of SSBs sent. For example, assuming that the number of SSBs sent in the SSB transmission opportunity in the cell is 6 SSBs, the SSB indices corresponding to the coverage cells whose coverage cell ID p is 0 to 9 are: 0, 1, 2, 3, 4, 5, 0, 1, 2, 3.

As an example, the association relationship between the SSB index and the BWP ID includes: q=s mod N, where s represents the SSB index, q represents the BWP ID, and N represents the number of BWPs. For example, assuming that the frequency band in the cell can be divided into 3 BWPs, and the number of SSBs sent in the SSB transmission opportunity is 8 SSBs, the SSB index s is 0 to 7, and the corresponding BWP IDs q are: 0, 1, 2, 0, 1, 2, 0.

Optionally, the first indication information is used to determine that the SSB of the defined cell is located in one frequency domain location; or, the first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain locations.

Optionally, the indication information of the frequency domain position of the SSB is used to indicate that the SSB defining the cell is located in one frequency domain position; or, the indication information of the frequency domain position of the SSB is used to indicate that the defined cell is at least two of the cells. The SSBs are located at different frequency domain locations. It can be understood that if the number of SSBs defining a cell is one, then the indication information of the frequency domain position of the SSB is used to indicate that an SSB defining the cell is located at a frequency domain position; if the number of SSBs defining the cell is at least one If there are two, then, the indication information of the frequency domain position of the SSB is used to indicate that at least two SSBs defining the cell are located in the same frequency domain position. Or, if the number of SSBs defining the cell is at least two, the indication information of the frequency domain location of the SSB is used to indicate that the at least two SSBs defining the cell are located at different frequency domain locations.

Optionally, the network device sending the first indication information to the terminal device may include: the network device sends the first indication information to the terminal device through a physical broadcast channel (Physical Broadcast Channel, PBCH), a system message (System Information) or a high-level parameter. Send the first indication information.

Optionally, the system message includes at least one of the following: a master message block (Master Information Block, MIB), a system message block (System Information Block, SIB1), and other SIBs other than SIB1.

Optionally, other SIBs other than SIB1 may be one or more of SIB2-SIB14 and posSIBs (Positioning SIBs, positioning SIBs). Exemplarily, the first indication information is sent through a PBCH, or the first indication information is sent through an MIB message, or the first indication information is sent through a SIB1 message, or the first indication information is sent through other SIB messages other than SIB1 messages, Or, the first indication information is sent through a high-level parameter (for example, Serving Cell Config Common).

As an example, the first indication information includes ssb-PositionsInBurst in SIB1; and/or, the first indication information includes ssb-PositionsInBurst in ServingCellConfigCommon.

Optionally, the configuration information provided by the first indication information included in different configuration parameters is the same. Exemplarily, ssb-PositionsInBurst in SIB1 and ssb-PositionsInBurst in ServingCellConfigCommon provide the same configuration information.

Optionally, the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including: the first indication information is used to indicate that at least one of the at least one transmission opportunity A frequency domain location of a transmitted SSB; or, the first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.

Optionally, the SSB includes an SSB in at least one transmission opportunity, and the indication information of the frequency domain location of the SSB may include: indication information of the frequency domain location of at least one transmitted SSB in the at least one transmission opportunity; Or, indication information of the frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.

Optionally, the SSB includes an SSB in an SSB transmission window; or, the SSB includes an SSB in a DRS transmission window.

It can be understood that the same time domain location at different frequency domain locations may be considered as one transmission opportunity, or may also be considered as multiple transmission opportunities.

Exemplarily, the indication information of the frequency domain position of the SSB includes indication information of the frequency domain position of the SSB in multiple transmission opportunities, wherein the indication information of the frequency domain position of the SSB in different transmission opportunities is associated with different frequency domain positions. For example, assuming that the bitmap corresponding to ssb-PositionsInBurst on a serving cell includes [10000001] associated with BWP0, [01010100] associated with BWP1, and [00101010] associated with BWP2, then the SSB of the SSB sent on the serving cell is indicated. The indices are that SSB0 and SSB7 are sent through BWP0, SSB1, SSB3 and SSB5 are sent through BWP1, and SSB2, SSB4 and SSB6 are sent through BWP2.

Optionally, SSBs with the same SSB index transmitted in the SSB have the same Quasi Co-Location (QCL) relationship. Exemplarily, SSBs with the same SSB index transmitted on different BWPs may be considered to have the same QCL relationship.

Optionally, the first indication information is further used to indicate the time domain position of the SSB.

Optionally, the first indication information may further include indication information of the time domain position of the SSB.

Optionally, the first indication information is further used to determine the position of the first SSB for activating the SSB transmitted on the BWP. That is, the terminal device determines, according to the first indication information, the position of the first SSB for activating the SSB transmitted on the BWP.

Optionally, the method further includes: receiving, by the terminal device on the activated BWP, a first physical downlink shared channel PDSCH sent by the network device according to the first SSB position; In the case where the RBs of the first PDSCH overlap with the RBs included in the first PDSCH, the terminal device determines that the resources corresponding to the overlapping RBs are not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following situations:

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the SI-RNTI and the system message indication included in the DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of RA-RNTI, MsgB-RNTI, P-RNTI or TC-RNTI;

CRC scrambled PDSCH scheduled for PDCCH of C-RNTI, MCS-C-RNTI or CS-RNTI; and,

SPS PDSCH.

Optionally, the method further includes: receiving, at the terminal device, the first indication information sent by the network device through the PBCH or MIB, and the terminal device receives the information scheduled by the PDCCH whose CRC scrambling code is SI-RNTI. The first PDSCH and the system message indication included in the DCI in the PDCCH is 0, or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, The terminal device receives the first PDSCH according to the first SSB position; if the RB included in the first SSB position overlaps with the RB included in the first PDSCH, the terminal device determines that the overlapping The resource corresponding to the RB is not used for the first PDSCH transmission.

Optionally, the method further includes: when the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI and the system message indication included in the DCI in the PDCCH is 0, or, receiving When the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI and the first PDSCH includes SIB1, the terminal device determines that no REs in the resource element REs included in the first PDSCH are used for SSB transmission . Further optionally, the first PDSCH includes the first indication information.

In this embodiment of the present invention, the terminal device receives first indication information sent by the network device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB. The terminal device may complete initial access and data rate matching of downlink reception according to the first indication information. Through the method of the embodiment of the present application, in the case that the frequency reuse factor of the NTN system is greater than 1, the terminal equipments located in different coverage cells on the ground can correctly complete the initial access of the NTN system and the rate matching of the downlink data reception .

As shown in FIG. 4A , taking the terminal equipment located in BWP2, B6, and footprint 0 as an example, the first indication information corresponding to the SSB transmission method in each of the four methods in the above example, the initial access behavior of the terminal equipment and SSB-based downlink receive rate matching for example.

Way 1:

The first indication information is used to indicate the frequency domain position of the SSB in the DRS transmission opportunity window or the SSB transmission opportunity window and/or the coverage cell corresponding to the SSB. As an example, the first indication information indicates the frequency domain location of the SSB, which may be: the first indication information indicates the association relationship between the BWP identifier and the SSB index transmitted in the SSB transmission opportunity in the BWP. For example, the first indication information includes 3 rows of bitmaps, each row of bitmaps includes 8 bits, and each row of bitmaps is associated with a BWP ID, wherein the first row of bitmaps is [10000001], which is used to indicate the SSB transmission opportunity on BWP0. The SSBs are SSB0 and SSB7; the bitmap in the second row is [01010100], which is used to indicate that the SSBs transmitted in the SSB transmission opportunity on BWP1 are SSB1, SSB3, and SSB5; the bitmap in the third row is [00101010], which is used to indicate the SSBs on BWP2. The SSBs transmitted in the SSB transmission opportunity are SSB2, SSB4 and SSB6.

Optionally, the first indication information indicates the frequency domain position of the cell-defining SSB.

Optionally, the first indication information is transmitted through at least one of PBCH, MIB and SIB1. For example, the first indication information includes ssb-PositionsInBurst in SIB1.

Optionally, the first indication information is transmitted through high-layer signaling. For example, the first indication information includes ssb-PositionsInBurst in ServingCellConfigCommon.

Optionally, the configuration information provided by the first indication information included in different configuration parameters is the same.

As an example, the first indication information indicates the coverage cell corresponding to the SSB, which may be: the first indication information indicates the association relationship between the coverage cell ID and the SSB index transmitted in the SSB transmission opportunity in the BWP.

When the terminal device performs initial access, since its geographical location FP0 corresponds to the coverage of BWP2 and B6, it can detect SSB6 in BWP2 and access the network through the detected SSB6 in BWP2. It can be understood that the BWP2 here can be an activated BWP or an initial BWP. Further, the terminal device may receive the first indication information according to the system message associated with SSB6, and determine the SSB transmitted on different BWPs in the cell, or the association information between the BWP and the SSB, or the coverage cell and the SSB according to the first indication information. , or the association information between the coverage cell and the BWP, or the association information between the coverage cell, the BWP, and the SSB. The terminal device may measure the corresponding BWPs according to the information of the SSBs transmitted on different BWPs, or the terminal device may determine the corresponding BWP information after detecting the SSBs on other BWPs.

Optionally, the terminal device determines, according to the first indication information, that the SSBs transmitted by the BWP2 include SSB2, SSB4 and SSB6, and further determines the rate matching of downlink data reception.

When the terminal device receives the PDSCH scheduled by the SI-RNTI and the system information indication included in the DCI corresponding to the SI-RNTI is 0 (or when the PDSCH scheduled by the SI-RNTI includes the SIB1 information), the terminal device should assume that the None of the REs included in the received PDSCH is used for SSB transmission.

When the terminal device receives the PDSCH scheduled by the SI-RNTI and the system information indication included in the DCI corresponding to the SI-RNTI is 1 (or when the PDSCH scheduled by the SI-RNTI includes system information other than SIB1), or receives PDSCH scheduled by RA-RNTI, MsgB-RNTI, P-RNTI or TC-RNTI, or PDSCH scheduled by PDCCH with CRC scrambling code C-RNTI, MCS-C-RNTI or CS-RNTI, or received SPS PDSCH , the terminal device shall determine, according to the first indication information, that the SSBs transmitted by the BWP2 include SSB2, SSB4 and SSB6. If the PRB in the scheduled PDSCH overlaps with the PRB used to transmit the SSB (ie SSB2, SSB4 or SSB6), the terminal device shall assume the resource corresponding to the overlapping PRB on the SSB transmitted symbol (or used for resources for transmitting SSB) are not used for PDSCH transmission.

Way 2:

The first indication information is used to indicate the frequency domain position of the SSB in the DRS transmission opportunity window or the frequency domain position of the SSB in the SSB transmission opportunity window and/or the coverage cell corresponding to the SSB. As an example, the first indication information indicates the frequency domain location of the SSB, which may be: the first indication information indicates the association relationship between the BWP identifier and the SSB index transmitted in the SSB transmission opportunity in the BWP. For example, the first indication information includes 3 rows of bitmaps, each row of bitmaps includes 8 bits, and each row of bitmaps is associated with a BWP ID, wherein the first row of bitmaps is [11111111], which is used to indicate the SSB transmission opportunity on BWP0. The SSBs are SSB0 to SSB7; the bitmap in the second row is [01010100], which is used to indicate that the SSBs transmitted in the SSB transmission opportunity on BWP1 are SSB1, SSB3, and SSB5; the bitmap in the third row is [00101010], which is used to indicate the SSB on BWP2. The SSBs transmitted in the SSB transmission opportunity are SSB2, SSB4 and SSB6.

Optionally, the SSBs transmitted in BWP0 are cell-defining SSBs, and the SSBs transmitted in BWP1 and BWP2 are non-cell-defining SSBs.

Optionally, the terminal device determines the initial BWP according to the indication information of the network device. For example, since the SSB sent in the first row includes the SSB sent in the second row and the third row, the terminal device can determine to send the BWP according to the first indication information. The SSB of the cell-defining is BWP0, or the first indication information is also used to indicate the location of the initial BWP.

When the terminal device performs initial access, since its geographical location is the coverage of FP0 corresponding to BWP2 and B6, it can detect SSB6 in BWP2. Since SSB6 in BWP2 is a non-cell-defining SSB, the terminal After finding the non cell-defining SSB6 in the BWP2, the device can receive the cell-defining SSB at the location of the SSB6 in the BWP1 according to the indication information in the SSB6 in the BWP2, thereby accessing the network. It can be understood that the BWP2 here can be the activated BWP. Further, the terminal device can receive the first indication information according to the system message associated with SSB6 on BWP1 or the PBCH or MIB in BWP2, and determine the SSB transmitted on different BWPs in the cell according to the first indication information, or the BWP and The association information of the SSB, or the association information between the coverage cell and the SSB, or the association information between the coverage cell and the BWP, or the association information between the coverage cell, the BWP, and the SSB. The terminal device may measure the corresponding BWPs according to the information of the SSBs transmitted on different BWPs, or the terminal device may determine the corresponding BWP information after detecting the SSBs on other BWPs.

The terminal device determines, according to the first indication information, that the SSBs transmitted by the BWP2 include SSB2, SSB4, and SSB6, and further determines the rate matching of downlink data reception.

Way 3:

The first indication information is used to indicate the frequency domain position of the SSB in the DRS transmission opportunity window or the SSB transmission opportunity window and/or the coverage cell corresponding to the SSB. As an example, the first indication information indicates the frequency domain location of the SSB, which may be: the first indication information indicates the BWP identifier including the SSB transmission opportunity, wherein the SSB index transmitted in each SSB transmission opportunity is the same. For example, the first indication information includes 1 row of 8-bit bitmaps, each row of bitmaps is associated with a BWP ID, the bitmap is [11111111], and is used to indicate that the SSBs transmitted in the SSB transmission opportunity are SSB0 to SSB7; in the first indication information It also includes the BWP index indication information or the frequency domain position of the first RB in the BWP corresponding to the BWP index, which is used to indicate the BWP that sends the SSB transmission opportunity in the cell. For example, assuming that a cell can include up to 4 BWPs, the first indication information further includes a bitmap of 1 row and 4 bits, where the bitmap is [1110], which is used to indicate that the SSB transmission opportunities on BWP0, BWP1 and BWP2 include the transmitted SSB.

Optionally, the terminal device determines the initial BWP according to the indication information of the network device. For example, the first indication information is also used to indicate the location of the initial BWP, and the terminal device can determine that the SSB sending cell-defining is BWP0 according to the first indication information.

When the terminal equipment performs initial access, because its geographical location FP0 corresponds to the coverage of BWP2 and B6, it can detect SSB6 in BWP2. Since SSB6 in BWP2 is a non-cell-defining SSB, the terminal equipment After the non-cell-defining SSB6 in BWP2 is found, the cell-defining SSB can be received at the location of SSB6 in BWP1 according to the indication information in the SSB6 in the BWP2, thereby accessing the network. It can be understood that the BWP2 here can be the activated BWP. Further, the terminal device may receive the first indication information according to the system message associated with SSB6 on BWP1 or the PBCH or MIB in BWP2, and determine the SSBs transmitted on different BWPs in the cell according to the first indication information. The terminal device may measure the corresponding BWPs according to the information of the SSBs transmitted on different BWPs, or the terminal device may determine the corresponding BWP information after detecting the SSBs on other BWPs.

The terminal device determines, according to the first indication information, that the SSBs transmitted by the BWP2 include SSB0 to SSB7, and further determines the rate matching of the downlink data reception.

When the terminal device receives the PDSCH scheduled by the SI-RNTI and the system information indication included in the DCI corresponding to the SI-RNTI is 1 (or when the PDSCH scheduled by the SI-RNTI includes system information other than SIB1), or receives PDSCH scheduled by RA-RNTI, MsgB-RNTI, P-RNTI or TC-RNTI, or PDSCH scheduled by PDCCH with CRC scrambling code C-RNTI, MCS-C-RNTI or CS-RNTI, or received SPS PDSCH , the terminal device shall determine, according to the first indication information, that the SSBs transmitted by the BWP2 include SSB2, SSB4 and SSB6. If the PRB in the scheduled PDSCH overlaps the PRB used to transmit the SSB (ie, at least one of SSB0 to SSB7), the terminal device shall assume the resource corresponding to this overlapping PRB on the symbols transmitted by the SSB (or Said resources used to transmit SSB) are not used for PDSCH transmission.

Way 4:

The first indication information is used to indicate the frequency domain position of the SSB in the DRS transmission opportunity window or the SSB transmission opportunity window and/or the coverage cell corresponding to the SSB. As an example, the first indication information indicates the frequency domain location of the SSB. Since this method is the same as the SSB transmission method of Rel-15, the first indication information includes ssb-PositionsInBurst. For example, the first indication information includes a bitmap of 1 row of 8 bits, each row of bitmap is associated with a BWP ID, the bitmap is [11111111], and is used to indicate that the SSBs transmitted in the SSB transmission opportunity are SSB0 to SSB7. The first indication information further includes the BWP identity or indication information of the association relationship between the frequency domain position of the first RB in the BWP corresponding to the BWP identity and the SSB index, which is used to indicate the SSB index associated with the BWP in the cell. For example, the first indication information is used to indicate the association relationship shown in Table 2 below.

foot print标识foot print logo	BWP标识BWP logo		SSB索引SSB Index
00	BWP0 BWP0	00
11	BWP1 BWP1	11
22	BWP2 BWP2	22
33	BWP1 BWP1	33
44	BWP2 BWP2	44
55	BWP1 BWP1	55
66	BWP2 BWP2	66
77	BWP0 BWP0	77

Table 2

When the terminal device performs initial access, since its geographical location FP0 corresponds to the coverage of BWP2 and B6 (corresponding to footprint index 6), it can detect SSB6 in BWP0 and access the network. It can be understood that the BWP2 here can be the activated BWP. Further, the terminal device may determine that the BWP associated with SSB6 is BWP2 according to the first indication information, so as to perform data transmission on BWP2 according to the beam direction corresponding to SSB6.

The terminal device determines that the BWP2 does not include SSB transmission, and further determines that the rate matching according to the SSB is not considered when receiving downlink data on the BWP2.

In this embodiment of the present invention, the terminal device receives first indication information sent by the network device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB. The terminal device may complete initial access and data rate matching of downlink reception according to the first indication information. Through the method of the embodiment of the present application, in the NTN system, the terminal equipment located on the ground in different coverage cells can correctly complete the initial access of the NTN system and the rate matching of downlink data reception. In addition, through the methods of some embodiments of this application, when the frequency reuse factor is greater than 1, for the same cell, terminal equipment located in different coverage cell areas on the ground can also access the cell through different BWPs, and Correctly complete the initial access of the NTN system and the rate matching of downlink data reception.

Corresponding to the above at least one method applied to the embodiment of the terminal device, the embodiment of the present application further provides one or more terminal devices. The terminal device in this embodiment of the present application may implement any one of the foregoing methods. As shown in FIG. 6A , it is a schematic diagram of an embodiment of a terminal device in an embodiment of the present invention, which may include:

The receiving module 601 is configured to receive first indication information sent by a network device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.

Optionally, as shown in FIG. 6B , which is a schematic diagram of another embodiment of the terminal device in the embodiment of the present invention, the terminal device further includes:

The processing module 602 is configured to determine the frequency domain location of the SSB and/or the coverage cell corresponding to the SSB according to the first indication information.

Optionally, the frequency domain location of the SSB includes at least one of the following:

The number of the sync grid transmitted by the SSB;

The identification ID of the bandwidth part BWP of the SSB transmission;

The frequency domain location of the SSB in the BWP transmitted by the SSB;

The ID of the resource block RB set for SSB transmission; and,

The frequency domain location of the SSB in the set of RBs transmitted by the SSB.

Optionally, the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

The RB number in the BWP of the first RB transmitted by SSB;

The frequency domain offset between the first RB of the SSB transmission and the first RB in the BWP;

The location of the sync grid transmitted by the SSB in the sync grid included in the BWP; and,

The sync cell number of the sync cell transmitted by the SSB in the sync cell included in the BWP.

Optionally, the coverage cell corresponding to the SSB includes at least one of the following:

The ID of the coverage cell corresponding to the SSB;

The association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by at least one SSB;

An association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

An association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein at least one coverage cell and at least one BWP correspond to the same SSB;

Optionally, the first indication information is used to determine that the SSB defining the cell is located at one frequency domain location; or, the first indication information is used to determine that the at least two SSBs defining the cell are located at different frequency domain locations.

Optionally, the receiving module 601 is specifically configured to receive the first indication information sent by the network device through a physical broadcast channel PBCH, a system message or a high-level parameter.

Optionally, the system message includes at least one of the following: a main message block MIB, a system message block one SIB1, and other SIBs other than SIB1.

Optionally, the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate the frequency domain location of the SSB, including: the first indication information is used to indicate the frequency domain location of at least one transmitted SSB in the at least one transmission opportunity or, the first indication information is used to indicate the frequency domain position of at least one untransmitted SSB in the at least one transmission opportunity.

Optionally, SSBs with the same SSB index transmitted in the SSB have the same quasi-co-sited QCL relationship.

Optionally, the processing module 602 is further configured to determine, according to the first indication information, a first SSB location for activating the SSB transmitted on the BWP.

Optionally, the receiving module 601 is further configured to receive, on the activated BWP, the first physical downlink shared channel PDSCH sent by the network device according to the first SSB position;

The processing module 602 is further configured to, when the RB included in the first SSB position overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following condition:

The cyclic redundancy code CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of the SI-RNTI, and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.

Optionally, the receiving module 601 is further configured to receive, at the terminal device, the first indication information sent by the network device through the PBCH or MIB, and the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI and the first PDSCH in the PDCCH. The system message indication included in the DCI is 0, or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, the first PDSCH is received according to the first SSB position;

The processing module 602 is further configured to, in the case that the RB included in the first SSB location overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission.

Optionally, the terminal device may further include: a processing module 602, which is further configured to, when the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI, and the system message indication included in the DCI in the PDCCH is 0, Or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, it is determined that no REs in the resource element REs included in the first PDSCH are used for SSB transmission.

Optionally, the first PDSCH includes first indication information.

Corresponding to the above-mentioned at least one method applied to the embodiment of the network device, the embodiment of the present application further provides one or more network devices. The network device in this embodiment of the present application may implement any one of the foregoing methods. As shown in FIG. 7, it is a schematic diagram of an embodiment of a network device in an embodiment of the present invention, which may include:

The sending module 701 is configured to send first indication information to the terminal device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB and/or the coverage cell corresponding to the SSB.

The number of the sync grid transmitted by the SSB;

The identification ID of the bandwidth part BWP of the SSB transmission;

The frequency domain location of the SSB in the BWP transmitted by the SSB;

The ID of the resource block RB set for SSB transmission; and,

The RB number in the BWP of the first RB transmitted by SSB;

The ID of the coverage cell corresponding to the SSB;

Optionally, the sending module 701 is specifically configured to send the first indication information to the terminal device through a physical broadcast channel PBCH, a system message or a high-level parameter.

Optionally, the first indication information is further used by the terminal device to determine the location of the first SSB for activating the SSB transmitted on the BWP.

Optionally, the sending module 701 is further configured to send the first physical downlink shared channel PDSCH according to the first SSB position on the activated BWP, wherein the first PDSCH is used for the RB included in the first SSB position and the first PDSCH included. In the case of overlapping RBs, the terminal device determines that the resources corresponding to the overlapping RBs are not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following situations:

Semi-persistent scheduling SPS PDSCH.

Corresponding to the above at least one method applied to the embodiment of the terminal device, the embodiment of the present application further provides one or more terminal devices. The terminal device in this embodiment of the present application may implement any one of the foregoing methods. As shown in FIG. 8, it is a schematic diagram of another embodiment of the terminal device in the embodiment of the present invention. The terminal device is described by taking a mobile phone as an example, and may include: a radio frequency (RF) circuit 810, a memory 820, an input unit 830, A display unit 840, a sensor 850, an audio circuit 860, a wireless fidelity (WiFi) module 870, a processor 880, a power supply 890 and other components. The radio frequency circuit 810 includes a receiver 814 and a transmitter 812 . Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 8 does not constitute a limitation on the mobile phone, and may include more or less components than the one shown, or combine some components, or arrange different components.

The following is a detailed introduction to each component of the mobile phone with reference to Figure 8:

The RF circuit 810 can be used for receiving and sending signals during sending and receiving of information or during a call. In particular, after receiving the downlink information of the base station, it is processed by the processor 880; in addition, the designed uplink data is sent to the base station. Typically, RF circuitry 810 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, and the like. In addition, RF circuitry 810 may also communicate with networks and other devices via wireless communication. The above-mentioned wireless communication can use any communication standard or protocol, including but not limited to the global system of mobile communication (global system of mobile communication, GSM), general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access) multiple access, CDMA), wideband code division multiple access (WCDMA), long term evolution (long term evolution, LTE), email, short message service (short messaging service, SMS) and so on.

The memory 820 can be used to store software programs and modules, and the processor 880 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 820 . The memory 820 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 820 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 830 may be used for receiving inputted numerical or character information, and generating key signal input related to user setting and function control of the mobile phone. Specifically, the input unit 830 may include a touch panel 831 and other input devices 832 . The touch panel 831, also referred to as a touch screen, can collect touch operations by the user on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 831). operation), and drive the corresponding connection device according to the preset program. Optionally, the touch panel 831 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 880, and can receive the command sent by the processor 880 and execute it. In addition, the touch panel 831 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. Besides the touch panel 831 , the input unit 830 may further include other input devices 832 . Specifically, other input devices 832 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The display unit 840 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 840 may include a display panel 841. Optionally, the display panel 841 may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like. Further, the touch panel 831 can cover the display panel 841, and when the touch panel 831 detects a touch operation on or near it, it transmits it to the processor 880 to determine the type of the touch event, and then the processor 880 determines the type of the touch event according to the touch event. Type provides corresponding visual output on display panel 841 . Although in FIG. 8, the touch panel 831 and the display panel 841 are used as two independent components to realize the input and input functions of the mobile phone, in some embodiments, the touch panel 831 and the display panel 841 can be integrated to form Realize the input and output functions of the mobile phone.

The cell phone may also include at least one sensor 850, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 841 according to the brightness of the ambient light, and the proximity sensor may turn off the display panel 841 and/or when the mobile phone is moved to the ear. or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes), and can detect the magnitude and direction of gravity when it is stationary. games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. Repeat.

The audio circuit 860, the speaker 861, and the microphone 862 can provide an audio interface between the user and the mobile phone. The audio circuit 860 can transmit the received audio data converted electrical signals to the speaker 861, and the speaker 861 converts them into sound signals for output; on the other hand, the microphone 862 converts the collected sound signals into electrical signals, and the audio circuit 860 converts the collected sound signals into electrical signals. After receiving, it is converted into audio data, and then the audio data is output to the processor 880 for processing, and then sent to, for example, another mobile phone through the RF circuit 810, or the audio data is output to the memory 820 for further processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 870. It provides users with wireless broadband Internet access. Although FIG. 8 shows the WiFi module 870, it can be understood that it is not a necessary component of the mobile phone, and can be completely omitted as required within the scope of not changing the essence of the invention.

The processor 880 is the control center of the mobile phone, using various interfaces and lines to connect various parts of the entire mobile phone, by running or executing the software programs and/or modules stored in the memory 820, and calling the data stored in the memory 820. Various functions of the mobile phone and processing data, so as to monitor the mobile phone as a whole. Optionally, the processor 880 may include one or more processing units; preferably, the processor 880 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. , the modem processor mainly deals with wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 880.

The mobile phone also includes a power supply 890 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 880 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. Although not shown, the mobile phone may also include a camera, a Bluetooth module, and the like, which will not be repeated here.

It should be noted that, in this embodiment of the present invention, the RF circuit 810 is configured to receive the first indication information sent by the network device, where the first indication information is used to indicate the frequency domain position of the synchronization signal block SSB, and/or the SSB corresponds to coverage area.

Optionally, the processor 880 is configured to determine the frequency domain location of the SSB and/or the coverage cell corresponding to the SSB according to the first indication information.

The number of the sync grid transmitted by the SSB;

The identification ID of the bandwidth part BWP of the SSB transmission;

The frequency domain location of the SSB in the BWP transmitted by the SSB;

The ID of the resource block RB set for SSB transmission; and,

The RB number in the BWP of the first RB transmitted by SSB;

The ID of the coverage cell corresponding to the SSB;

Optionally, the RF circuit 810 is specifically configured to receive the first indication information sent by the network device through a physical broadcast channel PBCH, a system message or a high layer parameter.

Optionally, the processor 880 is further configured to determine, according to the first indication information, a first SSB location for activating the SSB transmitted on the BWP.

Optionally, the RF circuit 810 is further configured to receive, on the activated BWP, the first physical downlink shared channel PDSCH sent by the network device according to the first SSB position;

The processor 880 is further configured to, when the RB included in the first SSB location overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following condition:

Semi-persistent scheduling SPS PDSCH.

Optionally, the RF circuit 810 is further configured to receive, at the terminal device, the first indication information sent by the network device through the PBCH or MIB, and the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI and the The system message indication included in the DCI is 0, or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, the first PDSCH is received according to the first SSB position;

The processor 880 is further configured to, in a case where the RB included in the first SSB location overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission.

Optionally, the processor 880 is further configured to, when the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI and the system message indication included in the DCI in the PDCCH is 0, or receives the CRC scrambling code. When the code is the first PDSCH scheduled by the PDCCH of SI-RNTI and the first PDSCH includes SIB1, it is determined that no REs in the resource element REs included in the first PDSCH are used for SSB transmission.

Optionally, the first PDSCH includes first indication information.

Corresponding to the above-mentioned at least one method applied to the embodiment of the network device, the embodiment of the present application further provides one or more network devices. The network device in this embodiment of the present application may implement any one of the foregoing methods. As shown in FIG. 9, it is a schematic diagram of another embodiment of a network device in an embodiment of the present invention, which may include:

a memory 901 and a transmitter 902, the memory 901 is used for executable program codes;

The transmitter 902 is configured to send first indication information to the terminal device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.

The number of the sync grid transmitted by the SSB;

The identification ID of the bandwidth part BWP of the SSB transmission;

The frequency domain location of the SSB in the BWP transmitted by the SSB;

The ID of the resource block RB set for SSB transmission; and,

The RB number in the BWP of the first RB transmitted by SSB;

The ID of the coverage cell corresponding to the SSB;

Optionally, the transmitter 902 is specifically configured to send the first indication information to the terminal device through a physical broadcast channel PBCH, a system message or a high layer parameter.

Optionally, the transmitter 902 is further configured to send the first physical downlink shared channel PDSCH according to the first SSB position on the activated BWP, wherein the first PDSCH is used for the RB included in the first SSB position and the first PDSCH included. In the case of overlapping RBs, the terminal device determines that the resources corresponding to the overlapping RBs are not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following situations:

Semi-persistent scheduling SPS PDSCH.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be stored by a computer, or a data storage device such as a server, data center, etc., which includes one or more available media integrated. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

The terms "first", "second", "third", "fourth", etc. (if present) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

Claims

A wireless communication method, comprising:

The terminal device receives the first indication information sent by the network device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.
The method according to claim 1, wherein the method further comprises:

The terminal device determines the frequency domain location of the SSB and/or the coverage cell corresponding to the SSB according to the first indication information.
The method according to claim 1 or 2, wherein the first indication information is used to indicate at least two frequency domain positions of the SSB.
The method according to any one of claims 1 to 3, wherein the frequency domain position of the SSB includes at least one of the following:

the number of the synchronization grid transmitted by the SSB;

The identification ID of the bandwidth part BWP transmitted by the SSB;

the frequency domain position of the SSB in the BWP transmitted by the SSB;

the ID of the resource block RB set transmitted by the SSB; and,

The frequency domain position of the SSB in the set of RBs transmitted by the SSB.
The method according to claim 4, wherein the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

the RB number in the BWP of the first RB transmitted by the SSB;

the frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP;

the location of the synchronization grid of the SSB transmission in the synchronization grid included in the BWP; and,

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP.
The method according to any one of claims 1 to 5, wherein the coverage cell corresponding to the SSB includes at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.
The method according to any one of claims 1 to 6, wherein the first indication information is used to indicate at least one of the following:

an association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP;

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.
The method according to any one of claims 1 to 7, wherein the first indication information is used to determine that the SSB defining the cell is located at a frequency domain position; or,

The first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain positions.
The method according to any one of claims 1 to 8, wherein the terminal device receives the first indication information sent by the network device, comprising:

The terminal device receives the first indication information sent by the network device through a physical broadcast channel PBCH, a system message or a high-level parameter.
The method according to claim 9, wherein the system message comprises at least one of the following:

Main message block MIB, system message block one SIB1, other SIBs other than SIB1.
The method according to any one of claims 1 to 10, wherein the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including:

The first indication information is used to indicate the frequency domain position of at least one SSB transmitted in the at least one transmission opportunity; or,

The first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.
The method according to any one of claims 1 to 11, wherein, SSBs with the same SSB index transmitted in the SSBs have the same quasi-co-sited QCL relationship.
The method according to any one of claims 1 to 12, wherein the first indication information is further used to indicate the time domain position of the SSB.
The method according to any one of claims 1 to 13, wherein the method further comprises:

The terminal device determines, according to the first indication information, a first SSB location for activating the SSB transmitted on the BWP.
The method of claim 14, wherein the method further comprises:

receiving, by the terminal device on the activated BWP, the first physical downlink shared channel PDSCH sent by the network device according to the first SSB position;

In the case where the RB included in the first SSB location overlaps with the RB included in the first PDSCH, the terminal device determines that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission, and the first PDSCH Include at least one of the following:

The CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of the SI-RNTI, and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.
The method of claim 14, wherein the method further comprises:

When the terminal device receives the first indication information sent by the network device through the PBCH or MIB, the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI and the DCI in the PDCCH The system message indication included in the SI-RNTI is 0, or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, the terminal device according to the first SSB a position to receive the first PDSCH;

In a case where the RB included in the first SSB location overlaps with the RB included in the first PDSCH, the terminal device determines that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission.
The method according to any one of claims 1 to 13, wherein the method further comprises:

When the terminal equipment receives the first PDSCH scheduled by the PDCCH whose CRC scramble code is SI-RNTI and the system message indication included in the DCI in the PDCCH is 0, or receives the PDCCH whose CRC scramble code is SI-RNTI In the case of the scheduled first PDSCH and the first PDSCH includes SIB1, the terminal device determines that no REs in the resource element REs included in the first PDSCH are used for SSB transmission.
The method according to claim 17, wherein the first PDSCH includes the first indication information.
A wireless communication method, comprising:

The network device sends first indication information to the terminal device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.
The method according to claim 19, wherein the first indication information is used to indicate at least two frequency domain positions of the SSB.
The method according to claim 19 or 20, wherein the frequency domain position of the SSB includes at least one of the following:

the number of the synchronization grid transmitted by the SSB;

The identification ID of the bandwidth part BWP transmitted by the SSB;

the frequency domain position of the SSB in the BWP transmitted by the SSB;

the ID of the resource block RB set transmitted by the SSB; and,

The frequency domain position of the SSB in the set of RBs transmitted by the SSB.
The method according to claim 21, wherein the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

the RB number in the BWP of the first RB transmitted by the SSB;

the frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP;

the location of the synchronization grid of the SSB transmission in the synchronization grid included in the BWP; and,

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP.
The method according to any one of claims 19-22, wherein the coverage cell corresponding to the SSB includes at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.
The method according to any one of claims 19-23, wherein the first indication information is used to indicate at least one of the following:

an association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP;

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.
The method according to any one of claims 19-24, wherein the first indication information is used to determine that the SSB defining the cell is located at a frequency domain location; or,

The first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain positions.
The method according to any one of claims 19-25, wherein the network device sends the first indication information to the terminal device, comprising:

The network device sends the first indication information to the terminal device through a physical broadcast channel PBCH, a system message or a high-level parameter.
The method according to claim 26, wherein the system message comprises at least one of the following:

Main message block MIB, system message block one SIB1, other SIBs other than SIB1.
The method according to any one of claims 19-27, wherein the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including:

The first indication information is used to indicate the frequency domain position of at least one SSB transmitted in the at least one transmission opportunity; or,

The first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.
The method according to any one of claims 19-28, wherein, SSBs with the same SSB index transmitted in the SSBs have the same quasi-co-sited QCL relationship.
The method according to any one of claims 19-29, wherein the first indication information is further used to indicate the time domain position of the SSB.
The method according to any one of claims 19-30, wherein the first indication information is further used for the terminal device to determine the first SSB location of the SSB transmitted on the activated BWP.
The method of claim 31, wherein the method further comprises:

The network device sends a first physical downlink shared channel PDSCH on the activated BWP according to the first SSB position, wherein the first PDSCH is used for the RB included in the first SSB position to be related to the first In the case where the RBs included in the PDSCH overlap, the terminal device determines that the resources corresponding to the overlapping RBs are not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following situations:

The cyclic redundancy code CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of SI-RNTI and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.
A terminal device, characterized in that it includes:

A receiving module, configured to receive first indication information sent by the network device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.
The terminal device according to claim 33, wherein the terminal device further comprises:

A processing module, configured to determine the frequency domain location of the SSB and/or the coverage cell corresponding to the SSB according to the first indication information.
The terminal device according to claim 33 or 34, wherein the first indication information is used to indicate at least two frequency domain positions of the SSB.
The terminal device according to any one of claims 33 to 35, wherein the frequency domain position of the SSB includes at least one of the following:

the number of the synchronization grid transmitted by the SSB;

The identification ID of the bandwidth part BWP transmitted by the SSB;

the frequency domain position of the SSB in the BWP transmitted by the SSB;

the ID of the resource block RB set transmitted by the SSB; and,

The frequency domain position of the SSB in the set of RBs transmitted by the SSB.
The terminal device according to claim 36, wherein the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

the RB number in the BWP of the first RB transmitted by the SSB;

the frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP;

the location of the synchronization grid of the SSB transmission in the synchronization grid included in the BWP; and,

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP.
The terminal device according to any one of claims 33 to 37, wherein the coverage cell corresponding to the SSB includes at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.
The terminal device according to any one of claims 33 to 38, wherein the first indication information is used to indicate at least one of the following:

an association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP;

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.
The terminal device according to any one of claims 33 to 39, wherein the first indication information is used to determine that the SSB defining the cell is located in a frequency domain position; or,

The first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain positions.
The terminal device according to any one of claims 33 to 40, wherein,

The receiving module is specifically configured to receive the first indication information sent by the network device through a physical broadcast channel PBCH, a system message or a high-level parameter.
The terminal device according to claim 41, wherein the system message includes at least one of the following:

Main message block MIB, system message block one SIB1, other SIBs other than SIB1.
The terminal device according to any one of claims 33 to 42, wherein the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including:

The first indication information is used to indicate the frequency domain position of at least one SSB transmitted in the at least one transmission opportunity; or,

The first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.
The terminal device according to any one of claims 33 to 43, wherein, SSBs with the same SSB index transmitted in the SSBs have the same quasi-co-sited QCL relationship.
The terminal device according to any one of claims 33 to 44, wherein the first indication information is further used to indicate the time domain position of the SSB.
The terminal device according to any one of claims 33 to 45, wherein,

The processing module is further configured to determine, according to the first indication information, a first SSB location for activating the SSB transmitted on the BWP.
The terminal device according to claim 46, wherein,

The receiving module is further configured to receive, on the activated BWP, the first physical downlink shared channel PDSCH sent by the network device according to the first SSB position;

The processing module is further configured to, in the case where the RB included in the first SSB location overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission, so the The first PDSCH includes at least one of the following situations:

The CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of the SI-RNTI, and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.
The terminal device according to claim 46, wherein,

The receiving module is further configured to receive the first indication information sent by the network device through the PBCH or MIB at the terminal device, and the terminal device receives the first indication information scheduled by the PDCCH whose CRC scrambling code is SI-RNTI. PDSCH and the system message indication included in the DCI in the PDCCH is 0, or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, according to the receiving the first PDSCH at the first SSB location;

The processing module is further configured to, in a case where the RB included in the first SSB position overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission.
The terminal device according to any one of claims 33 to 45, wherein the terminal device further comprises:

The processing module is further configured to receive the first PDSCH scheduled by the PDCCH whose CRC scramble code is SI-RNTI and the system message indication included in the DCI in the PDCCH is 0 when the terminal device receives the CRC scramble code In the case that it is the first PDSCH scheduled by the PDCCH of the SI-RNTI and the first PDSCH includes SIB1, it is determined that no REs in the resource element REs included in the first PDSCH are used for SSB transmission.
The terminal device according to claim 49, wherein the first PDSCH includes the first indication information.
A network device, characterized in that it includes:

The sending module is configured to send first indication information to the terminal device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.
The network device according to claim 51, wherein the first indication information is used to indicate at least two frequency domain positions of the SSB.
The network device according to claim 51 or 52, wherein the frequency domain location of the SSB includes at least one of the following:

the number of the synchronization grid transmitted by the SSB;

The identification ID of the bandwidth part BWP transmitted by the SSB;

the frequency domain position of the SSB in the BWP transmitted by the SSB;

the ID of the resource block RB set transmitted by the SSB; and,

The frequency domain position of the SSB in the set of RBs transmitted by the SSB.
The network device according to claim 53, wherein the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

the RB number in the BWP of the first RB transmitted by the SSB;

the frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP;

the location of the synchronization grid of the SSB transmission in the synchronization grid included in the BWP; and,

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP.
The network device according to any one of claims 51-54, wherein the coverage cell corresponding to the SSB includes at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.
The network device according to any one of claims 51-55, wherein the first indication information is used to indicate at least one of the following:

an association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP;

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.
The network device according to any one of claims 51-56, wherein the first indication information is used to determine that the SSB defining the cell is located at a frequency domain location; or,

The first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain positions.
The network device according to any one of claims 51-57, characterized in that,

The sending module is specifically configured to send the first indication information to the terminal device through a physical broadcast channel PBCH, a system message or a high-level parameter.
The network device according to claim 58, wherein the system message includes at least one of the following:

Main message block MIB, system message block one SIB1, other SIBs other than SIB1.
The network device according to any one of claims 51-59, wherein the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including:

The first indication information is used to indicate the frequency domain position of at least one SSB transmitted in the at least one transmission opportunity; or,

The first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.
The network device according to any one of claims 51-60, wherein, SSBs with the same SSB index transmitted in the SSBs have the same quasi-co-sited QCL relationship.
The network device according to any one of claims 51-61, wherein the first indication information is further used to indicate a time domain location of the SSB.
The network device according to any one of claims 51 to 62, wherein the first indication information is further used by the terminal device to determine a first SSB location for activating the SSB transmitted on the BWP.
The network device of claim 63, wherein:

The sending module is further configured to send a first physical downlink shared channel PDSCH on the activated BWP according to the first SSB position, wherein the first PDSCH is used for the RB and the RB included in the first SSB position. In the case where the RBs included in the first PDSCH overlap, the terminal device determines that the resources corresponding to the overlapping RBs are not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following situations:

The CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of the SI-RNTI, and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.
A terminal device, characterized in that it includes:

The receiver is configured to receive first indication information sent by the network device, where the first indication information is used to indicate the frequency domain location of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.
The terminal device according to claim 65, wherein the terminal device further comprises:

a processor, configured to determine the frequency domain location of the SSB and/or the coverage cell corresponding to the SSB according to the first indication information.
The terminal device according to claim 65 or 66, wherein the first indication information is used to indicate at least two frequency domain positions of the SSB.
The terminal device according to any one of claims 65 to 67, wherein the frequency domain position of the SSB includes at least one of the following:

the number of the synchronization grid transmitted by the SSB;

The identification ID of the bandwidth part BWP transmitted by the SSB;

the frequency domain position of the SSB in the BWP transmitted by the SSB;

the ID of the resource block RB set transmitted by the SSB; and,

The frequency domain position of the SSB in the set of RBs transmitted by the SSB.
The terminal device according to claim 68, wherein the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

the RB number in the BWP of the first RB transmitted by the SSB;

the frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP;

the location of the synchronization grid of the SSB transmission in the synchronization grid included in the BWP; and,

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP.
The terminal device according to any one of claims 65 to 69, wherein the first indication information is used to indicate at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.
The terminal device according to any one of claims 65 to 70, wherein the first indication information is used to indicate at least one of the following:

an association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP;

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.
The terminal device according to any one of claims 65 to 71, wherein the first indication information is used to determine that the SSB defining the cell is located in a frequency domain position; or,

The first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain positions.
The terminal device according to any one of claims 65 to 72, wherein,

The receiver is specifically configured to receive the first indication information sent by the network device through a physical broadcast channel PBCH, a system message or a high layer parameter.
The terminal device according to claim 73, wherein the system message includes at least one of the following:

Main message block MIB, system message block one SIB1, other SIBs other than SIB1.
The terminal device according to any one of claims 65 to 74, wherein the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including:

The first indication information is used to indicate the frequency domain position of at least one SSB transmitted in the at least one transmission opportunity; or,

The first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.
The terminal device according to any one of claims 65 to 75, wherein, SSBs with the same SSB index transmitted in the SSBs have the same quasi-co-sited QCL relationship.
The terminal device according to any one of claims 65 to 76, wherein the first indication information is further used to indicate a time domain position of the SSB.
The terminal device according to any one of claims 65 to 77, wherein,

The processor is further configured to determine, according to the first indication information, a first SSB location for activating the SSB transmitted on the BWP.
The terminal device according to claim 78, wherein,

The receiver is further configured to receive, on the activated BWP, the first physical downlink shared channel PDSCH sent by the network device according to the first SSB position;

The processor is further configured to, in the case where the RB included in the first SSB position overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission, and the The first PDSCH includes at least one of the following situations:

The CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of the SI-RNTI, and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.
The terminal device according to claim 78, wherein,

The receiver is further configured to receive the first indication information sent by the network device through the PBCH or MIB at the terminal device, and the terminal device receives the first indication information scheduled by the PDCCH whose CRC scrambling code is SI-RNTI. PDSCH and the system message indication included in the DCI in the PDCCH is 0, or, when the first PDSCH scheduled by the PDCCH whose CRC scrambling code is SI-RNTI is received and the first PDSCH includes SIB1, according to the receiving the first PDSCH at the first SSB location;

The processor is further configured to, in a case where the RB included in the first SSB location overlaps with the RB included in the first PDSCH, determine that the resource corresponding to the overlapping RB is not used for the first PDSCH transmission.
The terminal device according to any one of claims 65 to 77, wherein the terminal device further comprises:

The processor is further configured to, when the terminal device receives the first PDSCH scheduled by the PDCCH whose CRC scramble code is SI-RNTI and the system message indication included in the DCI in the PDCCH is 0, or, receives the CRC scramble code In the case that it is the first PDSCH scheduled by the PDCCH of the SI-RNTI and the first PDSCH includes SIB1, it is determined that no REs in the resource element REs included in the first PDSCH are used for SSB transmission.
The terminal device according to claim 81, wherein the first PDSCH includes the first indication information.
A network device, characterized in that it includes:

The transmitter is configured to send first indication information to the terminal device, where the first indication information is used to indicate the frequency domain position of the synchronization signal block SSB, and/or the coverage cell corresponding to the SSB.
The network device according to claim 83, wherein the first indication information is used to indicate at least two frequency domain positions of the SSB.
The network device according to claim 83 or 84, wherein the frequency domain position of the SSB includes at least one of the following:

the number of the synchronization grid transmitted by the SSB;

The identification ID of the bandwidth part BWP transmitted by the SSB;

the frequency domain position of the SSB in the BWP transmitted by the SSB;

the ID of the resource block RB set transmitted by the SSB; and,

The frequency domain position of the SSB in the set of RBs transmitted by the SSB.
The network device according to claim 85, wherein the frequency domain position of the SSB in the BWP transmitted by the SSB includes at least one of the following:

the RB number in the BWP of the first RB transmitted by the SSB;

the frequency domain offset between the first RB transmitted by the SSB and the first RB in the BWP;

the location of the synchronization grid of the SSB transmission in the synchronization grid included in the BWP; and,

The synchronization grid number of the synchronization grid transmitted by the SSB in the synchronization grid included in the BWP.
The network device according to any one of claims 83-86, wherein the coverage cell corresponding to the SSB includes at least one of the following:

the ID of the coverage cell corresponding to the SSB;

The association relationship between the coverage cell corresponding to the SSB and the BWP; and,

The association relationship between the ID of the coverage cell corresponding to the SSB and the ID of the BWP.
The network device according to any one of claims 83-87, wherein the first indication information is used to indicate at least one of the following:

an association relationship between the index of at least one SSB in the SSB and the number of the synchronization grid transmitted by the at least one SSB;

The association relationship between the index of at least one SSB in the SSB and the ID of the BWP transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the BWP transmitted by the at least one SSB;

An association relationship between an index of at least one SSB in the SSB and an SSB type corresponding to the at least one SSB, wherein the SSB type includes an SSB that defines a cell and an SSB that does not define a cell;

The association relationship between the index of at least one SSB in the SSB and the ID of the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the frequency domain position of the at least one SSB in the RB set transmitted by the at least one SSB;

an association relationship between the index of at least one SSB in the SSB and the ID of at least one coverage cell corresponding to the at least one SSB;

The association relationship between the ID of at least one coverage cell and the ID of at least one BWP, wherein the at least one coverage cell corresponds to the same SSB as the at least one BWP;

And, an association relationship between at least two of the following: an ID of at least one coverage cell, an ID of at least one BWP, and at least one SSB index.
The network device according to any one of claims 83-88, wherein the first indication information is used to determine that the SSB defining the cell is located at a frequency domain location; or,

The first indication information is used to determine that at least two SSBs of the defined cell are located in different frequency domain positions.
The network device according to any one of claims 83-89, characterized in that,

The transmitter is specifically configured to send the first indication information to the terminal device through a physical broadcast channel PBCH, a system message or a high layer parameter.
The network device according to claim 90, wherein the system message includes at least one of the following:

Main message block MIB, system message block one SIB1, other SIBs other than SIB1.
The network device according to any one of claims 83-91, wherein the SSB includes an SSB in at least one transmission opportunity, and the first indication information is used to indicate a frequency domain location of the SSB, including:

The first indication information is used to indicate the frequency domain position of at least one SSB transmitted in the at least one transmission opportunity; or,

The first indication information is used to indicate a frequency domain location of at least one untransmitted SSB in the at least one transmission opportunity.
The network device according to any one of claims 83-92, wherein the SSBs with the same SSB index transmitted in the SSBs have the same quasi-co-sited QCL relationship.
The network device according to any one of claims 83-93, wherein the first indication information is further used to indicate a time domain location of the SSB.
The network device according to any one of claims 83 to 94, wherein the first indication information is further used by the terminal device to determine the first SSB position for activating the SSB transmitted on the BWP.
The network device of claim 95, wherein:

The transmitter is further configured to send a first physical downlink shared channel PDSCH on the activated BWP according to the first SSB position, wherein the first PDSCH is used for the RB and the RB included in the first SSB position. In the case where the RBs included in the first PDSCH overlap, the terminal device determines that the resources corresponding to the overlapping RBs are not used for the first PDSCH transmission, and the first PDSCH includes at least one of the following situations:

The cyclic redundancy code CRC scrambling code is the PDSCH scheduled by the physical downlink control channel PDCCH of the SI-RNTI, and the system message indication included in the physical downlink control channel DCI in the PDCCH is 1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the system information wireless network device temporarily identifying the SI-RNTI, and the PDSCH includes other SIBs other than SIB1;

The CRC scrambling code is the PDSCH scheduled by the PDCCH of the random access wireless network equipment temporary identifier RA-RNTI, MsgB-RNTI, the paging wireless network equipment temporary identifier P-RNTI or the temporary cell wireless network equipment temporary identifier TC-RNTI;

The CRC scrambling code is the PDSCH scheduled by the cell wireless network equipment temporary identifier C-RNTI, the modulation and coding scheme wireless network equipment temporary identifier MCS-C-RNTI, or the PDCCH scheduling of the configuration scheduling wireless network equipment temporary identifier CS-RNTI; and,

Semi-persistent scheduling SPS PDSCH.
A computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-18, or 19-32.