WO2021051306A1 - Synchronization signal block transmission method, terminal device, and network device - Google Patents

Abstract

The embodiments of the present application relate to a synchronization signal block transmission method, a terminal device, and a network device. Said method comprises: according to a position index of a first synchronization signal block (SSB), an SSB numerical parameter and an SSB interval parameter, a terminal device determining quasi co-located (QCL) information of the first SSB, the SSB interval parameter being used for indicating the minimum interval between positions, in a time domain, of two adjacent SSBs in a transmission window. The synchronization signal block transmission method, the terminal device, and the network device in the embodiments of the present application can accurately determine QCL information of an SSB.

Description

Method, terminal equipment and network equipment for transmitting synchronization signal block Technical field

This application relates to the field of communications, and in particular to a method, terminal equipment and network equipment for transmitting synchronization signal blocks.

Background technique

In New Radio (NR), the position index (index) of the synchronization signal (Synchronization Signal, SSB)/Physical Broadcast Channel (PBCH) block (hereinafter referred to as "SSB") It can be used to obtain synchronization and Quasi Co-Loacted (QCL) relationships. Specifically, the method to obtain the QCL relationship of the SSB is to determine Mod (SSB position index, Q), and the same SSB has the QCL relationship, or according to the lowest three bits of the SSB position index, that is, the PBCH demodulation reference signal (Demodulation Reference signal). Signal, DMRS) sequence (sequence) index, and calculation of Mod (PBCH DMRS sequence index, Q) The same SSB has a QCL relationship. Among them, the definition of the parameter Q is generally considered to be the maximum number of beams, or the maximum number of SSBs that do not have a QCL relationship in a discovery reference signal (Discovery reference signal, DRS) window.

At present, within the DRS transmission window, the granularity of SSB transmission can be half a time slot or one time slot. That is to say, each time slot can send two SSBs or only one SSB, or the minimum size of adjacent SSBs. The interval is 1 or 2 candidate positions. For the case where two SSBs can be sent in each time slot, that is, the minimum interval between adjacent SSBs is 1 candidate position, if the SSBs of different beams obtain the same value through the above method, the SSBs of the different beams There is a QCL relationship between them; if different values are obtained, there is no QCL relationship between the SSBs of the different beams. But for the case where only one SSB can be sent per time slot, that is, the minimum interval between adjacent SSBs is 2 candidate positions, if the SSBs of different beams get the same value through the above method, they still do not have a QCL relationship. Therefore, the prior art method for determining the QCL relationship between SSBs will result in an incorrect QCL relationship in this case.

Summary of the invention

The embodiments of the present application provide a method, terminal equipment and network equipment for transmitting synchronization signal blocks, which can accurately determine the QCL information of the SSB.

In a first aspect, a method for transmitting a synchronization signal block is provided, including: a terminal device determines the quasi co-location information of the first SSB according to the location index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter, Wherein, the SSB interval parameter is used to indicate the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window.

In a second aspect, a method for transmitting a synchronization signal block is provided, which includes: a network device determines the quasi co-location information of the first SSB according to the location index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter, Wherein, the SSB interval parameter is used to indicate the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window; the network device sends to the terminal device according to the position index of the first SSB The first SSB.

In a third aspect, a terminal device is provided, which is used to execute the method in the above-mentioned first aspect or each of its implementation manners. Specifically, the terminal device includes a functional module for executing the method in the foregoing first aspect or each of its implementation manners.

In a fourth aspect, a network device is provided, which is used to execute the method in the above second aspect or each of its implementation manners. Specifically, the network device includes a functional module for executing the method in the above-mentioned second aspect or each of its implementation manners.

In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above-mentioned first aspect or each of its implementation modes.

In a sixth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementation modes.

In a seventh aspect, a chip is provided, which is used to implement any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof. Specifically, the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the chip executes any one of the above-mentioned first aspect to the second aspect or any of the implementations thereof method.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that enables a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.

In a ninth aspect, a computer program product is provided, including computer program instructions that cause a computer to execute any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

In a tenth aspect, a computer program is provided, which when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each of its implementation manners.

Through the above technical solution, the terminal device or the network device can determine the QCL information of any SSB according to the position index of any SSB, the SSB value parameter, and the interval parameter representing the time domain interval between adjacent SSBs, that is, Correctly obtain the QCL relationship between the SSBs sent at different locations, and avoid joint operations between SSBs that do not have a QCL relationship.

Description of the drawings

Fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

Fig. 2 is a schematic diagram of time-frequency resources occupied by an SSB according to an embodiment of the present application.

Fig. 3 is a time slot distribution pattern of the SSB under different subcarrier intervals provided by an embodiment of the present application.

FIG. 4 is a schematic diagram of listening-before-speaking LBT at multiple candidate positions provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of the quasi co-location relationship of SSBs with different location indexes provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of different transmission granularities of SSB provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of a method for transmitting synchronization signal blocks provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of the relationship between the positions of different SSBs and the QCL when the SSB interval parameter is 2 provided by an embodiment of the present application.

FIG. 9 is a schematic diagram of the relationship between the positions of different SSBs and the QCL when the SSB interval parameter is 1 provided in an embodiment of the present application.

FIG. 10 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 11 is a schematic block diagram of a network device provided by an embodiment of the present application.

FIG. 12 is a schematic block diagram of a communication device provided by an embodiment of the present application.

FIG. 13 is a schematic block diagram of a chip provided by an embodiment of the present application.

FIG. 14 is a schematic diagram of a communication system provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The technical solutions of the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system or 5G system, etc.

Exemplarily, the communication system 100 applied in the embodiment of this application is shown in FIG. 1. 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 called a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), or the wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment can be a mobile switching center, a relay station, an access point, a vehicle-mounted device, Wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.

The communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The "terminal equipment" used here includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment. A terminal device set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" or a "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio telephone transceivers Electronic device. Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.

Optionally, direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.

Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Figure 1 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 embodiment does not limit this.

Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.

It should be understood that the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 having a communication function and a terminal device 120. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities, which are not limited in the embodiment of the present application.

It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, exist alone B these three situations. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

Several concepts involved in the embodiments of the present application will be introduced in detail below.

1. NR-U system

The unlicensed spectrum is a spectrum that can be used for radio equipment communications divided by countries and regions. This spectrum is usually considered to be a shared spectrum. That is, the communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for a proprietary spectrum authorization from the government. In order to allow various communication systems that use the unlicensed spectrum for wireless communication to coexist friendly on the spectrum, some countries or regions have stipulated the regulatory requirements that must be met to use the unlicensed spectrum. For example, in Europe, communication equipment follows the principle of "listen-before-talk (LBT)", that is, communication equipment needs to perform channel listening before sending signals on unlicensed spectrum channels. The communication device can only perform signal transmission when the channel detection result is that the channel is free; if the channel detection result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot perform signal transmission. In addition, in order to ensure fairness, in one transmission, the duration of signal transmission by a communication device using an unlicensed spectrum channel cannot exceed the maximum channel occupation time (Maximum Channel Occupation Time, MCOT).

2. SS/PBCH block in NR system

Common channels and signals in the NR system, such as synchronization signals and broadcast channels, need to cover the entire cell by means of multi-beam scanning to facilitate reception by UEs in the cell. The multi-beam transmission of the synchronization signal is realized by defining the SS/PBCH burst set. An SS burst set contains one or more SS/PBCH blocks. An SS/PBCH block is used to carry the synchronization signal and broadcast channel of a beam. Therefore, an SS/PBCH burst set can contain the number of beam synchronization signals of the SS/PBCH block in the cell. The maximum number of SS/PBCH block numbers can be expressed as L. L is related to the frequency band of the system. For example, if the frequency range is less than or equal to 3GHz, L is 4; the frequency range is 3GHz to 6GHz, and L is 8; the frequency range is 6GHz to 52.6GHz, L is 64.

Figure 2 shows a schematic diagram of time-frequency resources occupied by an SS/PBCH block (hereinafter referred to as "SSB"). As shown in Figure 2, an SSB may include a primary synchronization signal (Primary Synchronization Signal, PSS) of an Orthogonal Frequency Division Multiplexing (OFDM) symbol, and may also include a secondary synchronization signal of an OFDM symbol ( Secondary Synchronization Signal (SSS) and NR-PBCH of two OFDM symbols, where the time-frequency resources occupied by the PBCH may include a demodulation reference signal (Demodulation Reference Signal, DMRS), and the DMRS is used for demodulation of the PBCH.

All SSBs in the SS/PBCH burst set are usually sent within a time window of 5 ms, and sent repeatedly at a certain period. The period can be configured through the high-level parameter SSB-timing (SSB-timing) information. For example, the period can include 5ms, 10ms, 20ms, 40ms, 80ms and 160ms etc. For the UE, the index of the SSB is obtained from the received SSB. The SSB index corresponds to the relative position of the SSB within the 5ms time window. The UE obtains frame synchronization according to this information and the half-frame indication information carried in the PBCH . Among them, the index of the SSB can be indicated by the DMRS of the PBCH or the information carried by the PBCH.

FIG. 3 shows the time slot distribution pattern of the SSB under different subcarrier spacing (SCS) according to the embodiment of the present application. Taking a 15kHz subcarrier interval and L=4 as an example, a slot contains 14 symbols, which can carry two SSBs in total, and a total of 4 SSBs are distributed in the first two slots within a 5ms time window.

It should be understood that the number L of SSBs in the embodiment of the present application is the number of the largest SSBs, that is, the number of SSBs actually sent may be less than or equal to L. The location of the actually sent SSB can be notified to the terminal through system information in the form of a bitmap. The number and location of the actually sent SSB are determined by the base station. In the NR system, since L is the maximum number of SSBs sent in a certain frequency band, the value range of SSB index is [0, L-1]. For example, in the frequency band below 6 GHz of the licensed spectrum, there are at most 8 SSBs included in the SSB burst, and the value range of the SSB index is 0-7.

In the NR system that uses the licensed spectrum, the SSB index can be used for the UE to obtain frame synchronization and QCL relationship. The former obtains the position of the SSB in the radio frame through the SSB index and half-frame indication, thereby obtaining frame synchronization. The latter UE assumes that the SSBs of the same SSB index have a QCL relationship, that is, if the indexes of the SSBs received at different times are the same, it is considered that they have a QCL relationship. When two reference signals (such as SSB) have a QCL relationship, it can be considered that the large-scale parameters of the two reference signals can be inferred from each other, or can be considered similar, where the large-scale parameters can include Doppler Time delay, average time delay and spatial reception parameters, etc. During the measurement, the UE can filter the SSB with the QCL relationship as the measurement result of the beam level.

3. DRS in NR-U system

In the NR-U system, for a primary cell (Primary Cell, PCell), the DRS signal sent by the network device can be used for access and measurement, where the DRS may at least include the SSB. Taking into account the uncertainty of obtaining the channel use right on the unlicensed spectrum, the network device may not be able to successfully transmit the SSB at a predetermined time due to the possibility of LBT failure during the transmission of the SSB. Therefore, the problem can be solved by increasing the transmission opportunity of SSB. Specifically, within a DRS transmission window, the number Y of SSB candidate positions configured by the network device is greater than the number X of SSB actually sent by the network device. That is, for each DRS transmission window, the network device may determine to use X available candidate positions among the Y candidate positions to transmit the DRS according to the detection result of the LBT in the DRS transmission window.

For example, in a time window of the longest 5ms, the subcarrier interval for SSB is 30kHz, and 20 candidate positions are defined, and the subcarrier interval for SSB is 15kHz, and 10 candidate positions are defined. Assuming that the maximum number of SSBs sent is Q, the base station determines to use the most Q candidate positions among the multiple candidate positions to transmit the DRS according to the detection result of the LBT in the DRS transmission window. Wherein, the parameter Q may be configured by the network device for the terminal device, or may also be specified by the protocol, and the embodiment of the present application is not limited thereto.

Fig. 4 shows a schematic diagram of performing LBT at a candidate position. As shown in Figure 4, the subcarrier spacing is 30kHz and 20 candidate positions are defined as an example. The maximum number of SSBs sent is 4, and correspondingly, the possible starting positions of the 4 SSBs can be shown in the figure. Any one of the 20 candidate positions in 4. It is assumed here that the base station performs LBT only when the candidate position indexes shown in FIG. 4 are 0, 4, 8, 12, and 16, that is, these four positions are used as the possible starting positions of the 4 SSBs. As shown in Figure 4, assuming that the base station successfully performs LBT before candidate position 12, it starts to send SSB QCL index 0-3 accordingly.

For the SSB transmission mode defined in NR-U, since the UE needs to obtain frame synchronization through the SSB received at the candidate transmission position, the SSB position index needs to be defined for the candidate transmission position. For example, taking Q=4, Y=20 as shown in Figure 4 as an example, since a maximum of 4 SSBs may be sent in 20 candidate positions, the position index carried by the SSB needs to be extended to 0 to Y-1, that is, SSB The carried SSB position index needs to be extended from 0 to 19, so that the UE can obtain the position of the received SSB and further obtain frame synchronization.

Since the maximum number of SSBs sent is 4, the value range of SSB QCL index used to obtain the QCL relationship between SSBs is 0 to 3, that is, the value range of SSB position index and SSB QCL index are not the same, but The UE can determine the QCL relationship information of the SSB through the SSB position index obtained by the received SSB. For SSBs sent at different times, if their SSB QCL index is the same, it is considered that there is a QCL relationship between them. In other words, there is no QCL relationship between SSBs with different SSB QCL indexes.

Among them, the method of obtaining the QCL information of the SSB can be by calculating SSB QCL index=Mod(SSB position index, Q), SSBs with the same SSB QCL index result have the QCL relationship; or, it can also be simplified to be based on the indicator used to indicate the SSB position index. The lowest three bits in the bitmap, which are based on the PBCH DMRS sequence (sequence) index, that is, SSB QCL index = Mod(PBCH DMRS sequence index, Q), and the SSB with the same result as the SSB QCL index Has a QCL relationship.

Figure 5 shows the quasi co-location relationship of SSBs with different location indexes. As shown in Figure 5, suppose there are 32 candidate positions for sending SSBs, the value range of the position index is 0-31, and the maximum number of SSBs sent is 8, which is the SSB used to obtain the QCL relationship between SSBs The value of QCL index ranges from 0 to 7, so there may be multiple SSBs with different location indexes, but they have a QCL relationship. For example, as shown in Figure 5, the four SSBs with SSB position index 0, 8, 16, 24 all have a QCL relationship.

In this case, for the SSB of any beam, it is located at a certain position of the Y candidate transmission positions, that is, the SSB position index of the SSB; in addition, the parameter Q used to determine the QCL information of the SSB can be carried by the PBCH , Can also be carried by system message, or pre-defined. After the UE receives the SSB, according to the received parameter Q and SSB position index, the QCL information of the SSB can be obtained. SSBs with QCL relationships can be processed jointly to improve performance.

According to the above method, the method of obtaining the QCL information of the SSB is to determine whether different SSBs have a QCL relationship according to whether the results of Mod (SSB position index, Q) are the same, or according to the lowest three bits of the SSB position index, such as Mod (PBCH DMRS sequence whether the results of index, Q) are the same to determine whether different SSBs have a QCL relationship. Among them, the definition of the parameter Q is generally considered to be equal to the maximum number of beams of the terminal device, or the maximum number of SSBs that do not have a QCL relationship in the DRS window.

At present, in the DRS transmission window, the transmission granularity of SSB can generally be half a time slot or one time slot, that is to say, two SSBs can be sent or only one SSB can be sent in each time slot, or in other words, relative Whether the minimum interval between adjacent SSBs is 1 or 2 candidate positions. Fig. 6 shows a schematic diagram of different transmission granularities of SSB. As shown in Fig. 6, assuming that the parameter Q=4, that is, a total of 4 beams of SSB are sent, OF=2 and OF=1 respectively indicate the minimum spacing of adjacent SSBs Are 2 and 1 candidate positions.

For the case of OF=1, that is, the minimum interval between the positions of adjacent SSBs is 1, that is, two SSBs can be sent in each time slot. In this case, calculate the SSBs of different beams in the above manner to obtain different SSBs The QCL index indicates that there is no QCL relationship between the SSBs of the different beams. On the contrary, if the SSBs of different beams are calculated to obtain the same SSB QCL index, it means that the SSBs of the different beams have a QCL relationship.

But for the case of OF=2, that is, the minimum interval between the positions of adjacent SSBs is 2, that is, only one SSB can be sent in each time slot. At this time, if the calculation is still performed in the above manner, then, as shown in the figure As shown in 6, the SSB of beam 0 and the SSB of beam 2 correspond to the same results of the determined SSB QCL index, and they should have a QCL relationship. In fact, the SSB of beam 0 and the SSB of beam 2 are different beams and do not have QCL. relationship. Therefore, the method of determining the QCL relationship between the SSBs in the above manner will result in an incorrect QCL relationship between the SSBs in this case.

Therefore, the embodiment of the present application provides a method for transmitting synchronization signal blocks, which can solve the above-mentioned problem and accurately determine whether the SSBs at different locations have a quasi co-location relationship.

FIG. 7 is a schematic flowchart of a method 200 for transmitting synchronization signal blocks according to an embodiment of the application. As shown in FIG. 2, the method 200 includes:

S210: Determine the quasi co-location information of the first SSB according to the position index of the first SSB, the SSB numerical parameter, and the SSB interval parameter, where the SSB interval parameter is used to indicate the time of two adjacent SSBs within a transmission window. The minimum gap between locations on the domain.

It should be understood that the method 200 may be executed by a terminal device, or may also be executed by a network device. For example, the terminal device may be a terminal device as shown in FIG. 1, and the network device may be a network device as shown in FIG. 1. For ease of description, the following takes the terminal device to execute the method 200 as an example for description. Correspondingly, the network device can also execute the method 200 in the same manner with reference to this, and the embodiment of the present application is not limited to this.

It should be understood that the first SSB in the embodiment of the present application may refer to any SSB, and the terminal device or the network device may determine the QCL information of one or more SSBs according to the method 200. Optionally, if the QCL information of multiple SSBs is the same, for example, the terminal device determines that the QCL index of the first SSB is the same as the QCL index of the second SSB according to the method 200, it can be considered that the first SSB and the second SSB have the same QCL index. QCL relationship.

It should be understood that the method 200 in the embodiment of the present application may further include: determining the location information of the first SSB. Specifically, the terminal device may determine the location information of the first SSB in a variety of ways, where the location information of the first SSB may include the location index of the first SSB. For example, the location index may indicate that the first SSB may be The number of the sending location.

Optionally, the terminal device may determine the location index of the first SSB by detecting the first SSB. For example, the terminal device detects the first SSB and generates a detection result; the terminal device then determines according to the detection result The location index of the first SSB. Wherein, the position index of the first SSB indicates the time domain position of the first SSB received by the terminal device.

Alternatively, the terminal device may also obtain the location index of the first SSB in another manner. For example, the terminal device may receive the location index of the first SSB sent by the network device. For example, the terminal device may receive the PBCH sent by the network device, where the PBCH includes the location index of the first SSB.

It should be understood that the value range of the position index of the first SSB in the embodiment of the present application indicates the possible transmission position of the first SSB. For example, the value range of the position index of the first SSB may be related to the size of a transmission window. For example, the transmission window may refer to the transmission window of the DRS, that is, the value range of the position index of the first SSB may be determined by the size of a DRS. The size of the transmission window is determined, or that there is a correspondence between the value range of the position index of the first SSB and the size of the transmission window of a DRS, the DRS includes the first SSB; and/or the position index of the first SSB The value range of may also be related to the subcarrier interval, that is, the value range of the position index of the first SSB may also be determined by the subcarrier interval, or the value range of the position index of the first SSB and the subcarrier interval Have a corresponding relationship.

For example, when the size of the transmission window is different, the number of possible sending positions of the SSB may be the same or different, that is, the value range of the position index of the first SSB may be the same or different; on the contrary, when the size of the transmission window is the same, When the subcarrier spacing is different, the number of possible transmission positions of the SSB may still be the same or different, that is, the value range of the position index of the first SSB may be the same or different, and the embodiment of the present application is not limited to this.

For example, taking Figure 4 as an example, the DRS window size is 5ms, and the subcarrier interval of the SSB is 30kHz, the number of possible transmission positions of the SSB is 20, that is to say, the value range of the position index of the first SSB is 0-19 . For another example, if the size of the DRS window is 5ms and the subcarrier interval of the SSB is 15kHz, 10 candidate positions are defined, that is, the number of possible transmission positions of the SSB is 10, that is to say, the value range of the position index of the first SSB is 0 -9.

It should be understood that, for a network device, the network device may adopt an LBT manner, for example, select one or more of the 20 or 10 possible sending positions mentioned above to send the SSB, and the position index of the first SSB may be It indicates the index of the location where the first SSB is actually sent, so that the terminal device can determine the location index of the first SSB, and can also receive the first SSB.

It should be understood that the method 200 in the embodiment of the present application may further include: determining the SSB numerical parameter. Specifically, the terminal device can determine the SSB value parameter in a variety of ways. For example, the terminal device can receive the SSB value parameter sent by the network device; or the terminal device can determine the SSB value parameter autonomously; or, the SSB value The parameter may also be predefined, for example, it may be stipulated in the protocol; or, the SSB value parameter may be jointly determined by combining multiple methods, for example, the SSB value parameter may be jointly determined according to the predefined parameter and the parameter sent by the network device The embodiments of the present application are not limited to this.

For the case where the terminal device receives the SSB numerical parameter sent by the network device, it may include: the terminal device receives an indication message sent by the network device, the indication message is used to indicate the SSB numerical parameter, where the indication message may be: system message, PBCH or Radio Resource Control (Radio Resource Control, RRC) signaling, but the embodiment of the application is not limited to this.

It should be understood that the SSB value parameter may be any value, that is, the SSB value parameter may have no specific meaning. For example, the SSB value parameter may be a value configured by a network device, and the value may be equal to any number. Alternatively, the SSB numerical parameter may also be at least one of the following situations: the SSB numerical parameter may be the maximum number of SSB beams; the SSB numerical parameter is the maximum number of SSBs in a transmission window; the SSB numerical parameter It can also be the maximum number of SSBs that do not have a QCL relationship in a transmission window. The transmission window may refer to a transmission window of a DRS, but the embodiment of the present application is not limited to this.

It should be understood that the method 200 in the embodiment of the present application may further include: determining an SSB interval parameter, where the SSB interval parameter is the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window. Specifically, the SSB interval parameter may indicate the transmission granularity of the SSB in the time domain, that is, the minimum interval between adjacent SSBs within a transmission window. For example, the difference between the position indexes of two adjacent SSBs may be calculated. Determine the SSB interval parameter. The SSB interval parameter is equal to the minimum value of the difference between the position indexes of two adjacent SSBs; in other words, the SSB interval parameter may also indicate that the SSB is transmitted according to several time slots. For example, the SSB may Transmission is performed according to the minimum interval of half a time slot or a time slot.

It should be understood that the transmission window in the embodiment of the present application may refer to a transmission window of any size, for example, the transmission window may refer to a transmission window of a DRS. For the convenience of description, the following describes a DRS transmission window as an example.

For example, as shown in Figure 6, assuming that a time slot has two SSB candidate transmission positions, then the SSB interval parameter OF can be set to 1, which means that the minimum interval between adjacent SSBs is a candidate position of an SSB, that is It is said that a time slot can send two SSBs at most; or, the SSB interval parameter OF can also be set to 2, which means that the minimum interval of adjacent SSBs is the candidate position of two SSBs, which means that a time slot can send at most An SSB, and so on.

It should be understood that the terminal device may determine the SSB interval parameter in a variety of ways. For example, the terminal device may receive the SSB interval parameter sent by the network device; or the terminal device may determine the SSB interval parameter by itself; or, the SSB interval The parameter may also be predefined, for example, it may be stipulated in the protocol; or, the terminal device may also determine the SSB interval parameter in a combination of multiple ways. For example, the terminal device may determine the SSB interval parameter in combination with the predefined and the network device. The SSB interval parameter, the embodiment of the present application is not limited to this.

Optionally, the case where the terminal device receives the SSB interval parameter sent by the network device may specifically include: the terminal device receives an indication message sent by the network device, the indication message is used to indicate the SSB interval parameter, and the indication message It can be: system message, PBCH or RRC signaling.

Optionally, for the case where the SSB interval parameter is carried by the system message, the SSB interval parameter may be carried by the system information block (SIB) 1 in the system message, or the SSB interval parameter may be carried by other system messages. .

Optionally, for the case where the SSB interval parameter is carried by the PBCH, the SSB interval parameter may be indicated by the master information block (MIB) carried in the PBCH and/or information bits other than the MIB.

For example, the information carried by the PBCH channel may include A-bit information from a higher layer and additional 8-bit information related to layer 1. The information related to layer 1 includes system frame number (SFN), half frame indicator, SSB index, and so on.

Specifically, the bits carried by the PBCH include the A-bit MIB from the upper layer, namely

It also includes 8 bits from layer 1, namely

Among them, the definition of A-bit MIB includes at least one of the following: 6 bits of SFN, 1 bit of subcarrier spacing information, 4 bits of subcarrier offset of SSB, DMRS related information, and PDCCH resource information for scheduling SIBs. In addition, it can also be Contains 1 free bit.

It should be understood that the subcarrier offset (ssb-SubcarrierOffset) information field of the SSB includes 4 bits, which are used to indicate the physical resource block (Physical Resource Block, PRB) grid between the channels or signals of the synchronization signal block and the non-synchronization signal block. The offset between k _SSB , the offset includes 0-11 or 0-23 subcarriers, and the ssb-SubcarrierOffset information field corresponds to the lowest 4 bits of the _{parameter k SSB.} The subcarrier spacing information field is subCarrierSpacingCommon, which can be used to indicate the subcarrier spacing used when the network sends SIB1, Msg.2/4 for initial access, and paging and broadcast SI-messages .

8 bits of layer 1

in,

Is the lowest 4 bits of SFN;

It is a half-frame indication; when L _SSB =64,

Is the highest 3 bits of the SSB index, otherwise,

Is the highest bit of the parameter k _SSB,

For reserved bits. Among them, L _SSB is the maximum number of SSBs, and k _SSB is the subcarrier offset information of the SSB. When the system frequency band is less than 6 GHz, that is, when the L _{SSB is} less than 64, the information related to layer 1 has 2 reserved bits.

When carrying SSB interval parameters through MIB, you can reuse the subcarrier spacing information field (subCarrierSpacingCommon) in MIB, the subcarrier offset information field (ssb-SubcarrierOffset) of SSB, and the resource information field (pdcch-ConfigSIB1) of the PDCCH of scheduling SIB1. When the SSB interval parameter is indicated by information bits other than MIB, all or part of the bits in the ssb-SubcarrierOffset information field, such as the highest bit, reserved bits, and half-frame indicator bits, can be used. When the SSB interval parameter is carried in the PBCH, MIB and information bits other than MIB can also be used to indicate together. In addition, the SSB interval parameter and the SSB numerical parameter can also be jointly coded, and the above-mentioned methods are used for indication.

Optionally, when measuring the SSB in the neighboring cell, the SSB interval parameter may also be carried through RRC signaling, for example, the SSB interval parameter is indicated in the measurement configuration information, such as MeasConfig, MeasObject, etc.

It should be understood that the QCL information of the first SSB in the embodiment of the present application may include the QCL index of the first SSB. Correspondingly, S210 in the method 200 may specifically include: according to the position index of the first SSB and the SSB value parameter And the SSB interval parameter can determine the QCL index of the first SSB. For example, the result of modulo the product of the SSB numerical parameter and the SSB interval parameter of the position index of the first SSB is determined as the quasi co-location index of the first SSB.

Optionally, the QCL index of the first SSB can be determined by the following formula (1):

QCL=mod(P,Q*OF) (1)

Wherein, QCL is the quasi co-location index of the first SSB, P is the position index of the first SSB, Q is the numerical parameter, and OF is the SSB interval parameter.

According to formula (1), when the SSB interval parameter and the numerical parameter take values respectively, the QCL index of the first SSB corresponding to any position index can be determined. For example, FIG. 8 shows a schematic diagram of the relationship between the positions of different SSBs and the QCL when the SSB interval parameter is 2. As shown in Figure 8, it is assumed that there are 20 candidate positions for SSB in a DES transmission window, that is, the possible value range of the position index of SSB is 0-19, but Figure 8 only shows 0 among them. -15 position; here also assume that the SSB interval parameter OF=2, that is, the minimum interval between the positions of any two adjacent SSBs sent by the network equipment is 2, which means that only one SSB can be transmitted in a time slot For example, the SSB in FIG. 8 can only be transmitted through the position of the black square, but not the position of the dashed box; in addition, it is also assumed that the numerical parameter Q is equal to 4. Therefore, according to the calculation result of formula (1), in the case of the SSB interval parameter OF=2, if the calculation results of multiple SSBs are the same, then it can be determined that the multiple SSBs have a QCL relationship, otherwise, there is no QCL. relationship. For example, two SSBs with SSB position indexes 0 and 8 have the same result and therefore have a QCL relationship, while two SSBs with SSB position indexes 0 and 4 have different results and therefore do not have a QCL relationship. Compared with the case of using Mod (SSB position index, Q) to calculate the QCL relationship, the results of calculating the two SSBs with the position index of the SSB 0 and 4 are the same, but in fact they have no QCL relationship, so the calculation will be wrong.

For another example, FIG. 9 shows a schematic diagram of the relationship between the positions of different SSBs and the QCL when the SSB interval parameter is 1. As shown in Figure 9, similar to Figure 8, it is assumed that there are 20 candidate positions of SSB within a DES transmission window, that is, the possible value range of the position index of SSB is 0-19, but Figure 9 only shows The positions of 0-9 are out; here, it is also assumed that the SSB interval parameter OF=1, that is, the minimum interval between the positions of any two adjacent SSBs sent by the network equipment is 1, that is, the energy in a time slot To transmit two SSBs, for example, the SSBs in Figure 9 may be transmitted through the positions of the black squares; in addition, it is also assumed that the numerical parameter Q is equal to 4. Therefore, according to the calculation result of formula (1), in the case of SSB interval parameter OF=1, if the calculation results of multiple SSBs are the same, then it can be determined that the multiple SSBs have a QCL relationship, otherwise, there is no QCL. relationship. For example, three SSBs with SSB position indexes 0, 4, and 8 have the same results and therefore have a QCL relationship, while two SSBs with SSB position indexes 0 and 2 have different results and therefore do not have a QCL relationship.

Optionally, according to the calculation method of the formula (1), other similar methods or formulas may be used to determine the QCL index of the first SSB through deformation and derivation. For example, assuming that the SSB interval parameter OF can only take 1 or 2, then the QCL index of the first SSB can also be determined by deforming the formula (1). Specifically, if the position index of the first SSB is an even number, the result of dividing the position index of the first SSB by the SSB interval parameter and then modulo the SSB numerical parameter is determined to be the QCL index of the first SSB; if If the position index of the first SSB is an odd number, the position index of the first SSB is increased by 1 or subtracted by 1, and then divided by the SSB interval parameter, the result of modulo the SSB value parameter is determined to be the QCL index of the first SSB , That is, determine the QCL index of the first SSB according to the following formula (2) or formula (3):

Wherein, QCL is the QCL index of the first SSB, P is the position index of the first SSB, Q is the numerical parameter, and OF is the SSB interval parameter.

Optionally, for the case where the SSB interval parameter OF can also take a value other than 1 or 2, it can be determined with reference to the principle of the above formula (2) or (3), and the embodiment of the present application is not limited to this.

In addition, the position index of the first SSB may be indicated by a bitmap, and the bitmap may include multiple bits. When calculating according to formula (1) or similar formulas, the parameter P may be equal to the position of the first SSB The exact value of the index is determined by all the bits of the bitmap used to indicate the position index of the first SSB; or, the parameter P may also be equal to the approximate value or substitute value of the position index of the first SSB, for example, It may be equal to the value of a part of the bit map used to indicate the position index of the first SSB. For example, assuming Q*OF=4, the bitmap used to indicate the position index of the first SSB includes 5 bits in total, or includes more bits. When calculating according to formula (1), the parameter P can be equal to 5 The value indicated by the bitmap, or the parameter P may also be equal to the value of the lowest three bits in the 5-bit bitmap (ie, PBCH DMRS sequence index), but no matter which value is used for the parameter P, the calculation result remains unchanged.

It should be understood that the method 200 of the embodiment of the present application may further include: the network device sends the first SSB to the terminal device. Specifically, the terminal device may receive the first SSB sent by the network device. Further, the terminal device may also determine the location index and the QCL index of the first SSB, and the embodiment of the present application is not limited to this.

Therefore, according to the method for transmitting synchronization signal blocks in the embodiments of the present application, the QCL information of any SSB can be determined according to the position index of the SSB, the numerical parameter of the SSB, and the interval parameter of the SSB. QCL relationship, to avoid joint operations between SSBs that do not have a QCL relationship.

Optionally, in the above method 200, the terminal device or the network device may determine the QCL information of the first SSB according to at least three parameters, namely the location index of the first SSB, the SSB numerical parameter, and the SSB interval parameter, in order to facilitate the distinction. Here, the SSB numerical parameter is referred to as the first SSB numerical parameter. The difference is that the terminal device or the network device may also determine the QCL information of the first SSB only according to at least two parameters, that is, the location index of the first SSB and the second SSB numerical parameter.

Specifically, the second SSB numerical parameter can be determined in a variety of ways. For example, the terminal device can receive the second SSB numerical parameter sent by the network device; or the terminal device can independently determine the second SSB numerical parameter; or The second SSB numerical parameter may also be stipulated in the protocol, and the embodiment of the present application is not limited to this.

It should be understood that the second SSB value parameter may be any value, that is, the second SSB value parameter may have no specific meaning. For example, the second SSB value parameter may be a value configured by a network device, and the value may be equal to any value. number. Alternatively, the second SSB numerical parameter may also indicate the maximum number of candidate positions of the SSB included in the time window in which one SSB included in the SS/PBCH burst set is sent in a transmission window; or, the second SSB numerical parameter may also It is equal to the product of the first SSB numerical parameter and the SSB interval parameter in S210 in the above method 200, that is, the product of the maximum number of SSBs that do not have a QCL relationship in a transmission window and the SSB interval parameter, but this application implements Examples are not limited to this.

In the embodiment of the present application, the process of determining the QCL information of the first SSB according to the position index of the first SSB and the numerical parameters of the second SSB is applicable to the related description in S210 in the above method 200, that is, in the determining process , The second SSB numerical parameter is substituted for the product of the first SSB numerical parameter and the SSB interval parameter in S210. For the sake of brevity, details are not repeated here.

Therefore, the process of determining the QCL information of the first SSB according to the position index of the first SSB and the numerical parameters of the second SSB saves at least one parameter compared to determining the QCL information of the first SSB by using at least three parameters. This saves costs and simplifies the calculation process.

It should be understood that in the various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not correspond to the embodiments of the present application. The implementation process constitutes any limitation.

The method for transmitting the synchronization signal block according to the embodiment of the present application is described in detail above with reference to Figs. 1 to 9, and the terminal device and the network device according to the embodiment of the present application will be described below in conjunction with Fig. 10 to Fig. 14.

As shown in FIG. 10, the terminal device 300 according to the embodiment of the present application includes: a processing unit 310 and a transceiving unit 320. Specifically, the processing unit 310 is configured to determine the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB numerical parameter, and the SSB interval parameter, wherein the SSB interval parameter is It indicates the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window.

Optionally, as an embodiment, the SSB value parameter includes at least one of the following values: the maximum number of received SSB beams and the maximum number of SSBs in one transmission window.

Optionally, as an embodiment, the processing unit 310 is configured to: determine a result of the position index of the first SSB modulo the product of the SSB numerical parameter and the SSB interval parameter as the first SSB's quasi co-location index.

Optionally, as an embodiment, the processing unit 310 is further configured to: detect the first SSB and generate a detection result; and determine the position index of the first SSB according to the detection result.

Optionally, as an embodiment, the value range of the location index of the first SSB is determined by the size of the transmission window; and/or, the value range of the location index of the first SSB is determined by the subcarrier of the synchronization signal The interval is determined.

Optionally, as an embodiment, the processing unit 310 is further configured to perform one of the following steps: receive the SSB numerical parameter and/or the SSB interval parameter through the transceiver unit 320; The SSB numerical parameter and/or the SSB interval parameter; and, according to a predefined parameter and the parameter received by the transceiver unit 320, the SSB numerical parameter and/or the SSB interval parameter are determined.

Optionally, as an embodiment, the transceiver unit 320 is configured to: receive an indication message, the indication message is used to indicate the SSB numerical parameter and/or the SSB interval parameter, and the indication message includes at least one of the following One: System messages, physical broadcast channels and RRC signaling.

Optionally, as an embodiment, the processing unit 310 is further configured to: determine the quasi co-location information of the second SSB according to the location index of the second SSB, the SSB numerical parameter, and the SSB interval parameter; In the case that the quasi co-location information of the first SSB is the same as the quasi co-location information of the second SSB, it is determined that the first SSB and the second SSB have a quasi co-location relationship.

It should be understood that the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are used to implement the corresponding procedures of the terminal device in the respective methods in FIGS. 1 to 9, and are not repeated here for brevity.

Therefore, the terminal device of the embodiment of the present application can determine the QCL information of any SSB according to the location index of the SSB, the SSB numerical parameter, and the SSB interval parameter, and can correctly obtain the QCL relationship between the SSBs received at different locations, and avoid Joint operations are performed between SSBs that do not have a QCL relationship.

As shown in FIG. 11, the network device 400 according to the embodiment of the present application includes: a processing unit 410 and a transceiving unit 420. Specifically, the processing unit 410 is configured to determine the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter, wherein the SSB interval parameter is To indicate the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window; the transceiver unit 420 is configured to: send the first SSB according to the position index of the first SSB.

Optionally, as an embodiment, the SSB value parameter includes at least one of the following values: the maximum number of SSB beams to be sent and the maximum number of SSBs in one transmission window.

Optionally, as an embodiment, the processing unit 410 is configured to: determine a result of the position index of the first SSB modulo the product of the SSB numerical parameter and the SSB interval parameter as the first SSB's quasi co-location index.

Optionally, as an embodiment, the processing unit 410 is further configured to determine the position index of the first SSB by listening first and then speaking LBT.

Optionally, as an embodiment, the value range of the location index of the first SSB is determined by the size of the transmission window; and/or, the value range of the location index of the first SSB is determined by the subcarrier of the synchronization signal The interval is determined.

Optionally, as an embodiment, the processing unit 410 is further configured to perform at least one of the following steps: configure the SSB numerical parameter and/or the SSB interval parameter; use the predefined SSB numerical parameter and /Or the SSB interval parameter.

Optionally, as an embodiment, the transceiver unit 420 is further configured to send an indication message, the indication message is used to indicate the SSB numerical parameter and/or the SSB interval parameter, and the indication message includes at least the following One: system message, physical broadcast channel or RRC signaling.

Optionally, as an embodiment, the processing unit 410 is further configured to: determine the quasi co-location information of the second SSB according to the location index of the second SSB, the SSB numerical parameter, and the SSB interval parameter; In the case that the quasi co-location information of the first SSB is the same as the quasi co-location information of the second SSB, it is determined that the first SSB and the second SSB have a quasi co-location relationship.

It should be understood that the above and other operations and/or functions of each unit in the network device 400 are used to implement the corresponding processes of the network device in the respective methods in FIGS. 1 to 9, and are not repeated here for brevity.

Therefore, the network device of the embodiment of the present application can determine the QCL information of any SSB according to the location index of the SSB, the SSB numerical parameter, and the SSB interval parameter, and can correctly obtain the QCL relationship between the SSBs sent at different locations, and avoid Joint operations are performed between SSBs that do not have a QCL relationship.

FIG. 12 is a schematic structural diagram of a communication device 500 provided by an embodiment of the present application. The communication device 500 shown in FIG. 12 includes a processor 510, and the processor 510 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 12, the communication device 500 may further include a memory 520. The processor 510 may call and run a computer program from the memory 520 to implement the method in the embodiment of the present application.

The memory 520 may be a separate device independent of the processor 510, or may be integrated in the processor 510.

Optionally, as shown in FIG. 12, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.

Wherein, the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include an antenna, and the number of antennas may be one or more.

Optionally, the communication device 500 may specifically be a network device of an embodiment of the present application, and the communication device 500 may implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it will not be repeated here. .

Optionally, the communication device 500 may specifically be a mobile terminal/terminal device of an embodiment of the application, and the communication device 500 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the application. For the sake of brevity , I won’t repeat it here.

FIG. 13 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 600 shown in FIG. 13 includes a processor 610, and the processor 610 can call and run a computer program from the memory to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 13, the chip 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

The memory 620 may be a separate device independent of the processor 610, or may be integrated in the processor 610.

Optionally, the chip 600 may further include an input interface 630. The processor 610 can control the input interface 630 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the chip 600 may further include an output interface 640. The processor 610 can control the output interface 640 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not described herein again.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-level chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.

FIG. 14 is a schematic block diagram of a communication system 700 according to an embodiment of the present application. As shown in FIG. 14, the communication system 700 includes a terminal device 710 and a network device 720.

Wherein, the terminal device 710 can be used to implement the corresponding function implemented by the terminal device in the above method, and the network device 720 can be used to implement the corresponding function implemented by the network device in the above method. Go into details.

It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software. The above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) And Direct Rambus RAM (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.

It should be understood that the foregoing memory is exemplary but not restrictive. For example, the memory in the embodiment of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiments of the present application is intended to include, but is not limited to, these and any other suitable types of memory.

The embodiment of the present application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application , For the sake of brevity, I won’t repeat it here.

The embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, it is not here. Go into details again.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, For the sake of brevity, I will not repeat them here.

The embodiment of the present application also provides a computer program.

Optionally, the computer program can be applied to the network device in the embodiment of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity , I won’t repeat it here.

Optionally, the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application. When the computer program runs on the computer, the computer executes each method in the embodiment of the present application. For the sake of brevity, the corresponding process will not be repeated here.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (42)

1. A method for transmitting a synchronization signal block, characterized in that it comprises:

   The terminal device determines the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter,

   Wherein, the SSB interval parameter is used to indicate the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window.
2. The method according to claim 1, wherein the SSB value parameter includes at least one of the following values: the maximum number of beams for receiving the SSB by the terminal device and the maximum number of SSBs in a transmission window.
3. The method according to claim 1 or 2, wherein the terminal device determines the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB numerical parameter, and the SSB interval parameter, include:

   The terminal device determines a result of modulo the product of the SSB numerical parameter and the SSB interval parameter by the position index of the first SSB as the quasi co-location index of the first SSB.
4. The method according to claim 1, wherein the method further comprises:

   The terminal device detects the first SSB and generates a detection result;

   The terminal device determines the location index of the first SSB according to the detection result.
5. The method of claim 4, wherein:

   The value range of the position index of the first SSB is determined by the size of the transmission window;

   and / or,

   The value range of the position index of the first SSB is determined by the subcarrier interval of the synchronization signal.
6. The method according to any one of claims 1 to 5, wherein the terminal device determines the SSB numerical parameter and/or the SSB interval parameter by one of the following methods:

   Receiving, by the terminal device, the SSB numerical parameter and/or the SSB interval parameter;

   The terminal device uses the predefined SSB numerical parameter and/or the SSB interval parameter;

   The terminal device determines the SSB numerical parameter and/or the SSB interval parameter according to the predefined parameters and the received parameters.
7. The method according to claim 6, wherein the receiving, by the terminal device, the SSB numerical parameter and/or the SSB interval parameter comprises:

   The terminal device receives an indication message, the indication message is used to indicate the SSB numerical parameter and/or the SSB interval parameter, and the indication message includes at least one of the following: system message, physical broadcast channel, and radio resource control RRC Signaling.
8. The method according to any one of claims 1 to 7, wherein the method further comprises:

   Determining, by the terminal device, the quasi co-location information of the second SSB according to the location index of the second SSB, the SSB numerical parameter, and the SSB interval parameter;

   In the case where the quasi co-location information of the first SSB is the same as the quasi co-location information of the second SSB, the terminal device determines that the first SSB and the second SSB have a quasi co-location relationship.
9. A method for transmitting a synchronization signal block, characterized in that it comprises:

   The network device determines the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter, where the SSB interval parameter is used to indicate that the neighbors are in a transmission window. The minimum distance between the positions of two SSBs in the time domain;

   The network device sends the first SSB according to the location index of the first SSB.
10. The method according to claim 9, wherein the SSB value parameter comprises at least one of the following values: the maximum number of SSB beams sent by the network device and the maximum number of SSBs in a transmission window.
11. The method according to claim 9 or 10, wherein the network device determines the quasi co-location information of the first SSB according to the location index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter, include:

    The network device determines a result of modulo the product of the SSB numerical parameter and the SSB interval parameter by the position index of the first SSB as the quasi co-location index of the first SSB.
12. The method according to claim 9, wherein the method further comprises:

    The network device determines the location index of the first SSB by listening first and then speaking LBT.
13. The method of claim 12, wherein:

    The value range of the position index of the first SSB is determined by the size of the transmission window;

    and / or,

    The value range of the position index of the first SSB is determined by the subcarrier interval of the synchronization signal.
14. The method according to any one of claims 9 to 13, wherein the method further comprises:

    The network device configures the SSB numerical parameter and/or the SSB interval parameter; and/or

    The network device uses the predefined SSB numerical parameter and/or the SSB interval parameter.
15. The method according to claim 14, wherein the method further comprises:

    The network device sends an indication message, the indication message is used to indicate the SSB numerical parameter and/or the SSB interval parameter, and the indication message includes at least one of the following: system message, physical broadcast channel, and radio resource control RRC Signaling.
16. The method according to any one of claims 9 to 15, wherein the method further comprises:

    Determining, by the network device, the quasi co-location information of the second SSB according to the location index of the second SSB, the SSB numerical parameter, and the SSB interval parameter;

    In a case where the quasi co-location information of the first SSB is the same as the quasi co-location information of the second SSB, the network device determines that the first SSB and the second SSB have a quasi co-location relationship.
17. A terminal device, characterized in that it comprises:

    The processing unit is configured to determine the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB value parameter, and the SSB interval parameter,

    Wherein, the SSB interval parameter is used to indicate the minimum interval between the positions of two adjacent SSBs in the time domain within a transmission window.
18. The terminal device according to claim 17, wherein the SSB value parameter comprises at least one of the following values: the maximum number of received SSB beams and the maximum number of SSBs in a transmission window.
19. The terminal device according to claim 17 or 18, wherein the processing unit is configured to:

    A result obtained by modulating the product of the SSB numerical parameter and the SSB interval parameter by the position index of the first SSB is determined as the quasi co-location index of the first SSB.
20. The terminal device according to claim 17, wherein the processing unit is further configured to:

    Detecting the first SSB and generating a detection result;

    According to the detection result, the location index of the first SSB is determined.
21. The terminal device according to claim 20, wherein:

    The value range of the position index of the first SSB is determined by the size of the transmission window;

    and / or,

    The value range of the position index of the first SSB is determined by the subcarrier interval of the synchronization signal.
22. The terminal device according to any one of claims 17 to 21, wherein the terminal device further comprises: a transceiver unit,

    The processing unit is also used to perform one of the following steps:

    Receiving the SSB numerical parameter and/or the SSB interval parameter through the transceiver unit;

    Using the predefined SSB numerical parameter and/or the SSB interval parameter;

    Determine the SSB numerical parameter and/or the SSB interval parameter according to the predefined parameters and the parameters received by the transceiver unit.
23. The terminal device according to claim 22, wherein the transceiving unit is configured to:

    An indication message is received, the indication message is used to indicate the SSB numerical parameter and/or the SSB interval parameter, and the indication message includes at least one of the following: a system message, a physical broadcast channel, and radio resource control RRC signaling.
24. The terminal device according to any one of claims 17 to 23, wherein the processing unit is further configured to:

    Determine the quasi co-location information of the second SSB according to the location index of the second SSB, the SSB numerical parameter, and the SSB interval parameter;

    When the quasi co-location information of the first SSB is the same as the quasi co-location information of the second SSB, it is determined that the first SSB and the second SSB have a quasi co-location relationship.
25. A network device, characterized in that it comprises:

    The processing unit is configured to determine the quasi co-location information of the first SSB according to the position index of the first synchronization signal block SSB, the SSB numerical parameter, and the SSB interval parameter, where the SSB interval parameter is used to indicate that the SSB interval is in a transmission window. The minimum interval between the positions of two adjacent SSBs in the time domain;

    The transceiver unit is configured to send the first SSB according to the position index of the first SSB.
26. The network device according to claim 25, wherein the SSB value parameter comprises at least one of the following values: the maximum number of SSB beams sent and the maximum number of SSBs in one transmission window.
27. The network device according to claim 25 or 26, wherein the processing unit is configured to:

    A result obtained by modulating the product of the SSB numerical parameter and the SSB interval parameter by the position index of the first SSB is determined as the quasi co-location index of the first SSB.
28. The network device according to claim 25, wherein the processing unit is further configured to:

    The position index of the first SSB is determined by listening first and then speaking LBT.
29. The network device according to claim 28, wherein:

    The value range of the position index of the first SSB is determined by the size of the transmission window;

    and / or,

    The value range of the position index of the first SSB is determined by the subcarrier interval of the synchronization signal.
30. The network device according to any one of claims 24 to 29, wherein the processing unit is further configured to perform at least one of the following steps:

    Configuring the SSB numerical parameter and/or the SSB interval parameter;

    Use the predefined SSB numerical parameter and/or the SSB interval parameter.
31. The network device according to claim 30, wherein the transceiver unit is further configured to:

    Send an indication message, where the indication message is used to indicate the SSB numerical parameter and/or the SSB interval parameter, and the indication message includes at least one of the following: a system message, a physical broadcast channel, and radio resource control RRC signaling.
32. The network device according to any one of claims 25 to 31, wherein the processing unit is further configured to:

    Determine the quasi co-location information of the second SSB according to the location index of the second SSB, the SSB numerical parameter, and the SSB interval parameter;

    When the quasi co-location information of the first SSB is the same as the quasi co-location information of the second SSB, it is determined that the first SSB and the second SSB have a quasi co-location relationship.
33. A terminal device, characterized by comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 8. The method described in one item.
34. A network device, comprising: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any of claims 9 to 16 The method described in one item.
35. A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 8.
36. A chip, characterized by comprising: a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 9 to 16.
37. A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 1 to 8.
38. A computer-readable storage medium, characterized in that it is used to store a computer program that enables a computer to execute the method according to any one of claims 9 to 16.
39. A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 1 to 8.
40. A computer program product, characterized by comprising computer program instructions, which cause a computer to execute the method according to any one of claims 9 to 16.
41. A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 1 to 8.
42. A computer program, wherein the computer program causes a computer to execute the method according to any one of claims 9 to 16.

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