CN113039842B

CN113039842B - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN113039842B
Application number: CN201980073840.1A
Authority: CN
Inventors: 贺传峰
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2022-10-21
Anticipated expiration: 2039-02-22
Also published as: CN113039842A; WO2020168575A1

Abstract

The embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which can implement the determination of the QCL relationship of the SSB, and further save channel resources and signaling overhead. The method comprises the following steps: the method comprises the steps that terminal equipment receives indication information sent by network equipment, wherein the indication information indicates SSBs actually transmitted in a Synchronization Signal Block (SSB) cluster; according to the SSBs actually transmitted, the terminal equipment determines the number of the SSBs actually transmitted; and according to the number, the terminal equipment determines the quasi co-location QCL relationship of the received SSB.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to a wireless communication method, terminal equipment and network equipment.

Background

In a New Radio (NR) system, a network device may transmit a Synchronization Signal Block (SSB), which may include a Physical Broadcasting Channel (PBCH), a Primary Synchronization Signal (PSS), and a Secondary Synchronization Signal (SSS), to a terminal device.

The network device may periodically send SSBs, and the SSBs that can be sent at most every period may be referred to as an SSB cluster. When the SSBs are transmitted periodically, the SSBs of different periods may have a Quasi-Co-Located (QCL) relationship, e.g., the SSBs may be transmitted at different periods using the same beam.

How to determine the QCL relationship of the SSB is an urgent problem to be solved.

Disclosure of Invention

Embodiments of the present application provide a wireless communication method, a terminal device, and a network device, which may implement determining a QCL relationship of an SSB, and may further save channel resources and signaling overhead.

In a first aspect, a wireless communication method is provided, including: the method comprises the steps that terminal equipment receives indication information sent by network equipment, wherein the indication information indicates SSBs actually transmitted in a Synchronization Signal Block (SSB) cluster; according to the SSBs actually transmitted, the terminal equipment determines the number of the SSBs actually transmitted; and according to the number, the terminal equipment determines the quasi co-location QCL relationship of the received SSB.

In a second aspect, a wireless communication method is provided, including: the network equipment sends indication information to the terminal equipment, wherein the indication information indicates the SSB actually transmitted in the SSB cluster; and according to the number of the actually transmitted SSBs indicated in the indication information, the network equipment determines the quasi co-location QCL relationship of the SSBs to be sent.

In a third aspect, a terminal device is provided for executing the method in the first aspect. In particular, the terminal device comprises functional modules for performing the method in the first aspect described above.

In a fourth aspect, a network device is provided for performing the method of the second aspect. In particular, the network device comprises functional modules for performing the method in the second aspect described above.

In a fifth aspect, a terminal device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the first aspect.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the second aspect.

In a seventh aspect, a chip is provided for implementing the method in the first aspect.

Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs the method as in the first aspect described above.

In an eighth aspect, a chip is provided for implementing the method in the second aspect.

Specifically, the chip includes: a processor for calling and running the computer program from the memory so that the device in which the chip is installed performs the method as in the second aspect described above.

In a ninth aspect, there is provided a computer readable storage medium for storing a computer program for causing a computer to perform the method of the first aspect.

In a tenth aspect, a computer-readable storage medium is provided for storing a computer program for causing a computer to execute the method of the second aspect.

In an eleventh aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of the first aspect.

In a twelfth aspect, a computer program product is provided, comprising computer program instructions for causing a computer to perform the method of the second aspect.

In a thirteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the first aspect described above.

In a fourteenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the second aspect described above.

In the embodiment of the present application, the terminal device obtains the number of actually transmitted SSBs in the SSB cluster indicated in the indication information, and determines the QCL relationship based on the number of actually transmitted SSBs, so that the problem of channel waste caused by determining the QCL relationship by the number of SSBs in the SSB cluster (the maximum number of transmittable SSBs) can be avoided, and the QCL relationship of the SSBs can be determined by borrowing the indication information indicating the actually transmitted SSBs, so that the need to send an additional piece of indication information for indicating the number used for determining the QCL relationship of the SSBs can be avoided, and thus signaling overhead can be reduced.

Drawings

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

Fig. 2 is a schematic diagram of an SSB provided in an embodiment of the present application.

Fig. 3 is a schematic diagram of candidate transmission positions of SSBs in the next period of different subcarrier intervals according to an embodiment of the present application.

Fig. 4 is a schematic diagram of a transmission manner of an SSB according to an embodiment of the present application.

Fig. 5 is a schematic diagram of another SSB transmission manner provided in the embodiment of the present application.

Fig. 6 is a schematic diagram of QCL relationship of an SSB provided in an embodiment of the present application.

Fig. 7 is a schematic diagram of a transmission manner of an SSB according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a transmission manner of an SSB according to an embodiment of the present application.

Fig. 9 is a schematic diagram of a wireless communication method provided in an embodiment of the present application.

Fig. 10 is a schematic diagram of a transmission manner of an SSB according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of a network device according to an embodiment of the present application.

Fig. 13 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 14 is a schematic block diagram of a chip provided in an embodiment of the present application.

Fig. 15 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS) System, a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD Duplex) System, an Advanced Long Term Evolution (Advanced Long Term Evolution, LTE-a) System, a New Radio (New Radio, NR) System, an Evolution System of the NR System, an LTE (LTE-based Access to unlicensed spectrum, LTE-U) System on an unlicensed Frequency band, an NR (NR-based Access to unlicensed spectrum, NR-U) System on an unlicensed Frequency band, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a Wireless Local Area Network (WLAN), a Wireless Fidelity (WiFi), a next-generation communication System, or other communication systems.

Generally, the conventional Communication system supports a limited number of connections and is easy to implement, however, with the development of Communication technology, the mobile Communication system will support not only conventional Communication but also, for example, device-to-Device (D2D) Communication, machine-to-Machine (M2M) Communication, machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems.

Illustratively, a communication system 100 applied in the embodiment of the present 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 referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. In an implementation manner, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal device 120 located within the coverage area of the network device 110. As used herein, "terminal equipment" includes, but is not limited to, connections via wireline, such as Public Switched Telephone Network (PSTN), digital Subscriber Line (DSL), digital cable, direct cable connection; and/or another data connection/network; and/or via a Wireless interface, such as for a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal device arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal device arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications System (PCS) terminals that may combine a cellular radiotelephone with data processing, facsimile and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. Terminal Equipment may refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolved PLMN, etc.

In one implementation, direct Device to Device (D2D) communication may be performed between terminal devices 120.

In one implementation, a 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

Fig. 1 exemplarily shows one network device and two terminal devices, and in an implementation, the communication system 100 may include a plurality of network devices and each network device may include other numbers of terminal devices within a coverage area thereof, which is not limited in this embodiment of the present application.

In one implementation, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above and are not described herein again; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The method of the embodiment of the application can be applied to communication of the unlicensed spectrum and can also be applied to communication of the licensed spectrum.

Unlicensed spectrum is a nationally and regionally divided spectrum available for communication by radio devices, which may be considered a shared spectrum, i.e., a spectrum that may be used by communication devices in different communication systems as long as it meets the regulatory requirements set by the country or region on the spectrum, and may not be applied for a proprietary spectrum license from the government. In order to enable friendly coexistence of various communication systems using unlicensed spectrum for wireless communication on the spectrum, when a communication device communicates on the unlicensed spectrum, the principle of Listen Before Talk (LBT) may be followed, that is, before the communication device performs signal transmission on a channel of the unlicensed spectrum, it needs to perform channel sensing (or called channel detection) first, and only when the channel sensing result is that the channel is idle, the communication device can perform signal transmission; if the communication device performs channel sensing on the unlicensed spectrum, as a result, the channel is busy, signal transmission is not possible. In one implementation, the bandwidth of the LBT is 20MHz, or an integer multiple of 20 MHz. The Maximum Channel Occupancy Time (MCOT) may refer to a Maximum Time length allowed for signal transmission using a Channel of an unlicensed spectrum after LBT is successful, and different MCOTs exist under different Channel access schemes. The maximum value of MCOT may be, for example, 10ms. It should be understood that the MCOT is the time taken for signal transmission. A Channel Occupancy Time (COT) may refer to a Time period for signal transmission using a Channel of an unlicensed spectrum after LBT is successful, and the Channel Occupancy Channel may be discontinuous within the Time period. Wherein one COT, optionally no more than e.g. 20ms, takes no more time than MCOT for signal transmission within the COT.

Common channels and signals (such as synchronization signals and broadcast channels) in the NR system can cover the whole cell in a multi-beam scanning manner, and are convenient for UEs in the cell to receive. Multi-beam transmission of Synchronization Signals (SS) and Physical Broadcast Channels (PBCH) may be achieved by defining SS/PBCH (SSB) clusters (clusters in the embodiments of the present application may also be referred to as clusters, that is, SS/PBCH clusters may be referred to as SSB clusters).

Wherein, one SS/PBCH burst set can contain one or more Synchronization Signal Blocks (SSBs). One SSB is used to carry the synchronization signal and the broadcast channel of one beam. Therefore, one SS burst set may contain the number of SSBs equal to the beam on which the cell transmits the SSBs. The maximum number L of SSBs included in an SS burst set may be related to the frequency band of the system.

For example, for a frequency band within 3GHz, L equals 4; for the frequency band between 3GHz and 6GHz, L equals 8; for the band between 6GHz and 52.6, L equals 64.

In one implementation, one SSB may include a Primary Synchronization Signal (PSS) of one symbol, a Secondary Synchronization Signal (SSS) of one symbol, and a NR-PBCH (New Radio Access Technology-Physical broadcast channel) of two symbols, for example, as shown in fig. 2. The time-frequency resource occupied by the PBCH may optionally include a Demodulation Reference Signal (DMRS) for demodulating the PBCH.

In one implementation, all SSBs in the SS/PBCH burst set may be transmitted within a certain time window (e.g., 5 ms) and repeatedly transmitted with a certain period, which may be configured by the parameter SSB timing (SSB-timing) of the higher layer, for example, the period may include 5ms,10ms,20ms,40ms,80ms,160ms, etc.

Fig. 3 shows the distribution pattern of SSBs at different Subcarrier space (SCS) intervals. Taking a 15kHz subcarrier spacing, L =4 as an example, one slot (slot) contains 14 symbols (symbols), which can carry two SSBs. The 4 SSBs are distributed in the first two slots within the 5ms time window.

Wherein L is the maximum number of SSBs, and the number of actually transmitted SSBs may be smaller than L. The position of the SSB actually transmitted is notified to the terminal device by system information in the form of bit mapping.

The number and location of the SSBs actually transmitted are determined by the base station. For example, in a frequency band below 6GHz of the licensed spectrum, the SSBs included in the SSB burst are at most 8, and the SSB index takes a value of 0 to 7. The base station informs the UE of the specific SSB transmission position through 8-bit mapping. The 8-bit bitmap respectively corresponds to SSB indexes =0-7, and each bit represents whether an SSB is transmitted or not for the UE to perform rate matching. As shown in fig. 4, in the SSB pattern, if the index of the actually transmitted SSB is 0,2,4,6, the 8-bit carried in the system information is mapped to "10101010".

The SSB index may optionally be used for frame synchronization and also for the terminal device to obtain the QCL relationship of the SSB. SSBs received at different times have the same index and may be considered to have a QCL relationship between them.

Where two reference signals (e.g., SSBs) are QCLs, the large-scale parameters (e.g., doppler delay, average delay, spatial reception parameters, etc.) of the two reference signals can be considered to be mutually inferred, or can be considered to be similar. The UE may filter the SSBs with QCL relationship during measurement as the measurement result of the beam level.

In an NR-U system, for example, for one primary cell (Pcell), a network device may transmit a Discovery Reference Signal (DRS) Signal for access, measurement, and the like, and the DRS may include at least an SSB. In an implementation manner, the DRS may include an SSB, a PDCCH corresponding to SIB1, a Physical Downlink Shared Channel (PDSCH) carrying the SIB1, and may further include a paging cell, and the like. Similar to SSB, DRS signals may also be transmitted in blocks (blocks) where the signals within the blocks have a (Quasi Co-Located, QCL) relationship. It should be understood that, in the embodiment of the present application, the DRS may also include other types of information, and this is not specifically limited in the embodiment of the present application.

In consideration of the uncertainty of obtaining the channel usage right on the unlicensed spectrum, in the transmission process of the SSB, the SSB may not be successfully transmitted at a predetermined time due to the possibility of LBT failure. The sending opportunity of the SSB may be increased, and in one DRS transmission window (also referred to as an SSB transmission window), the number Y of candidate locations of the DRSs configured by the network device is greater than the number X of DRSs actually sent by the network device. That is, for each DRS transmission window, the network device may determine to transmit a DRS using X available candidate locations of the Y candidate locations according to the detection of LBT within the DRS transmission window.

Assuming that the maximum number of SSB transmissions is 8, there are Y =64 candidate transmission positions within one time window (which may also be referred to as a transmission window or SSB transmission period). As shown in fig. 5, when LBT performed before the transmission time of SSB index 0 fails, channel sensing is continued, and LBT performed before SSB index 4 succeeds, the remaining SSBs are transmitted from SSB index 4, and after SSB index 7 is transmitted, the SSB indexes 0 to 3 that have not been successfully transmitted before are transmitted. Depending on the moment the LBT succeeds, the actual transmission time of the SSB may be located at the initial or alternative transmission time. As shown in fig. 5, there is only one method for increasing the transmission opportunity, and there are other methods, which are not described herein again.

For the SSB transmission mode defined in New Radio-unlicensed (NR-U) of an unlicensed carrier, since the UE needs to obtain frame synchronization through the SSB received at a candidate transmission position, an extended SSB index (extended SSB index) needs to be defined for the candidate transmission position. For example, for L =8,y =20 as an example, since a maximum of 8 SSBs may be sent at 20 candidate positions, the index carried by the SSB needs to be extended to 0 to Y-1, so that the terminal device obtains the position of the received SSB, and further obtains frame synchronization.

In addition, in NR, QCL information can also be obtained by SSB indexing. In the NR-U, since the extended SSB index is used, one method of obtaining QCL information of the SSB may be that the extended SSB index modulo L (mod L), and SSBs corresponding to the extended SSB index having the same result have a QCL relationship. As shown in FIG. 6, SSB with an extended SSB index of 0,8,16,24 has a QCL relationship.

Under this assumption, the SSBs for a certain beam (where the SSBs with the same beam have a QCL relationship) are located at the Y candidate transmission positions. This has a problem that the QCL attribute of the SSB actually transmitted by the network device has a binding relationship with the candidate transmission location, and the SSB having a certain QCL relationship cannot be transmitted at any of the candidate transmission locations. Since the channel usage on the unlicensed spectrum is based on preemption, the limitation on the transmission time of the SSB will put higher demands on the channel occupancy, reducing the usage efficiency of the occupied channel.

As shown in fig. 7, L =8,y =20, when the SSB index corresponding to the QCL of the SSB actually transmitted by the network device is 4,5,6,7, their position in the Y candidates is 12,13,14,15. If the network device succeeds in LBT, it must wait until the extended SSB index is 12 to start transmission, which causes waste of channel occupation at the position of 8,9,10,11.

The above problem can be solved by starting LBT before the candidate transmission position with the extended SSB index of 12, and if LBT succeeds, starting to transmit the SSB with the extended SSB index of 12, for example, as shown in fig. 8. This approach has the disadvantage of limiting the time at which the network device performs LBT, reducing the chance that the network device can perform LBT attempts within the DRS window.

Therefore, the following scheme is provided in the embodiments of the present application, which can avoid waste of channels and increase the chance of LBT attempt by a network device in an unlicensed spectrum scenario.

Fig. 9 is a schematic flow chart diagram of a wireless communication method 200 according to an embodiment of the present application. The method 200 includes at least some of the following. The method of the embodiment of the application can be used in the licensed spectrum and can also be used in the unlicensed spectrum.

In 210, the network device sends indication information to the terminal device, where the indication information indicates the SSBs actually transmitted in the SSB cluster.

Herein, an SSB cluster mentioned in the embodiment of the present application may refer to SSBs that can transmit at most in a single SSB transmission period (which may be referred to as an SSB transmission window or a time window). The maximum number of SSBs included in an SSB cluster may be L as mentioned above.

In an implementation manner, the indication information in the embodiment of the present application may be carried in system information.

Specifically, the indication Information may be carried in a System Information Block (SIB) 1 or a Master Information Block (MIB).

In this embodiment of the present application, the system information carrying the indication information may belong to a DRS to which the SSB belongs, or may not belong to the DRS at that time.

When the indication information is carried in the system information, the terminal device may be in a connected state or an idle state.

In one implementation, when the indication information is carried in the system information, the content of the indication information carried in the system information for a period of time may be unchanged.

In an implementation manner, in this embodiment, the system information is system information block 1SIB1 or master information block MIB.

When the indication information is carried through the SIB1, the following method may be used:

ssb-PositionsInBurst SEQUENCE{

inOneGroup BIT STRING(SIZE(8)),

groupPresence BIT STRING(SIZE(8))OPTIONAL

the above manner represents that at most 64 SSBs are divided into at most 8 groups, and the grouppinse indicates which groups have actually transmitted SSBs, wherein in the 8-bit bitmap, 1 represents that there are actually transmitted SSBs in the group, and 0 represents that there is no SSB. inoneegroup indicates the position of the SSB of the actual transmission in each group, where in the 8-bit map, 1 represents the SSB transmission at the position and 0 represents no transmission.

In an implementation manner, in this embodiment of the present application, when the terminal device is in an idle state, the indication information is carried in an SIB 1.

In an implementation manner, in this embodiment, the indication information may be carried in RRC signaling.

Specifically, the SSBs actually transmitted in the SSB cluster may be semi-statically configured, and may be carried in a message for semi-static configuration, for example, may be carried in RRC signaling.

When the indication information is carried in the RRC signaling, the terminal device may be in a connected state.

When the indication information is carried in the RRC signaling, the specific implementation may be as follows:

ssb-PositionsInBurst CHOICE{

shortBitmap BIT STRING(SIZE(4)),

mediumBitmap BIT STRING(SIZE(8)),

longBitmap BIT STRING(SIZE(64))

}

according to different frequency bands, the maximum number L of SSBs may be 4,8, 64, and the position of the actually transmitted SSB is indicated by corresponding short bitmap (short bitmap), medium bitmap (medium bitmap), and long bitmap (long bitmap), where 1 represents SSB transmission at the position and 0 represents no transmission.

In an implementation manner, in an embodiment of the present application, the indication information is SSB position (SSB-positioninburst) information in an SSB cluster. At this time, the indication information may be carried in SIB1 or RRC signaling.

In an implementation manner, in this embodiment of the present application, the indication information indicates, in a bit mapping manner, an SSB actually transmitted in the SSB cluster.

For example, the number of SSBs in an SSB cluster is 8, and the indication information includes 11001100 bits, which means that SSBs with indexes of 0,1,4 and 5 among the 8 SSBs are actually transmitted.

Of course, in the embodiment of the present application, the SSBs actually transmitted in the SSB cluster may also be indicated in other manners, for example, the indication information indicates the SSBs actually transmitted in the SSB cluster by carrying an index of the actually transmitted SSBs.

In one implementation, in this embodiment, the network device may send the indication information in various ways, for example, sending the indication information through SIB1 and also through RRC.

In one implementation, in the embodiment of the present application, the indication information sent in different manners may have different purposes.

Specifically, the indication information (SSB indicating actual transmission) sent by SIB1 may be used for measurement of the idle terminal device, and after the terminal device establishes RRC link with the network, the network device may send the indication information (SSB indicating actual transmission) through RRC signaling for the terminal device to perform rate matching.

For example, ssb-positioninburst obtained by the UE through SIB1 is mainly used for measurement of idle UE, and after the UE establishes RRC link with the network, the base station may configure another ssb-positioninburst through RRC signaling, which is mainly used for rate matching by the UE.

In an implementation manner, in this embodiment of the present application, if the terminal device determines the QCL relationship by using the indication information indicated in a certain manner, the network device may also determine the QCL relationship by using the indication information indicated in the certain manner, so that the network device and the terminal device can keep consistent understanding of the QCL relationship of the SSB.

In an implementation manner, which manner is specifically adopted to determine the QCL relationship may be preset on the terminal device or configured by the network device, where the configuration information may be carried in the MIB or the SIB.

For example, the network device may instruct the terminal device to obtain the number information of the actually transmitted SSBs according to the indication information in SIB1 or RRC signaling, thereby determining the QC relationship of the SSBs.

At 220, according to the number of actually transmitted SSBs indicated in the indication information, the network device determines a QCL relationship of the SSBs to be transmitted.

Specifically, the network device may modulo the number by an extended SSB index carried in the to-be-sent SSB to determine the QCL relationship of the to-be-sent SSB. And SSBs corresponding to the extended SSB indexes with the same numerical value obtained by taking the logarithm modulo have QCL relationship.

The extended SSB index carried by the SSB in the embodiment of the present application represents a candidate sending position occupied by the SSB, and the terminal device may perform frame synchronization according to the extended SSB index. The extended SSB index may also be referred to as a candidate transmission position index.

In 230, the network device sends the SSB to the terminal device.

In one implementation manner, in this embodiment of the present application, before the terminal device sends the SSB, an LBT operation may be performed, and in case that the LBT is successful, the SSB may be sent.

In an implementation manner, in this embodiment of the present application, a sending position of the SSB to be sent is determined according to the QCL relationship of the SSB to be sent.

When the network device performs the LBT operation, the start time for performing the LBT operation may be determined according to the extended SSB index corresponding to the SSB quasi-co-located with the SSB to be sent.

For example, as shown in fig. 10, the candidate transmission positions of SSBs are 16, the extended SSB index is from 0 to 15, the number of SSBs included in the SSB cluster is 8, the number N of actually transmitted SSBs is 4, and the extended SSB index 0 and the extended SSB index 4 have a QCL relationship, that is, are QCL.

In the case that the embodiment of the present application is used for an unlicensed spectrum, as shown in fig. 10, if the network device performs LBT successfully at time t0 (a starting point of an SSB transmission period), the SSB may be sent at a position where an extended SSB index is 0, and in a subsequent SSB transmission period, the SSB may be sent at a candidate sending position corresponding to the extended SSB index of 0,4,8,12, so as to implement quasi-co-location with the SSB sent at time t 0.

In 240, the terminal device receives indication information sent by the network device, where the indication information indicates the SSBs actually transmitted in the SSB cluster.

In one implementation manner, in this embodiment of the application, in a case that the indication information is sent in multiple manners, if the actually transmitted SSBs indicated by the indication information sent in multiple manners and/or the number thereof are different, the terminal device may determine the actually transmitted SSBs and/or the number thereof according to the indication information sent in one manner.

For example, in the case where the network device transmits the indication information through both RRC and SIB1, if the number of actually transmitted SSBs indicated by the indication information in RRC is different from the number of actually transmitted SSBs indicated by the indication information in SIB1, the number of actually transmitted SSBs indicated by the indication information in SIB1 may be the norm.

At 250, the terminal device determines the number of actually transmitted SSBs based on the actually transmitted SSBs.

According to the actually transmitted SSBs indicated by the indication information, the number N of actually transmitted SSBs can be obtained.

For example, when L =8, the number of SSBs actually transmitted N =4 can be determined by the bitmap indicated by SSB-positioninginburst being 11001100.

In 260, the terminal device receives the SSB sent by the network device.

In an implementation manner, in this embodiment of the present application, the terminal device may detect the SSB according to a blind detection manner.

In an implementation manner, in this embodiment, the terminal device may perform detection of the SSBs according to the QCL relationship of the SSBs to be detected.

In one implementation, in the embodiment of the present application, the terminal device may perform detection of SSBs according to actually transmitted SSBs and/or the number of SSBs.

In an implementation manner, in this embodiment of the present application, the indication information mentioned in this embodiment of the present application indicates the SSBs actually transmitted in the SSB cluster, and then may be used for the terminal device to determine (may be approximately to determine) which candidate transmission locations of the SSBs have the SSBs.

In 270, the terminal device determines the QCL relationship of the received SSBs according to the number of actually transmitted SSBs.

Specifically, in this embodiment of the present application, the terminal device may modulo the number by an extended SSB index carried in the received SSB, so as to determine the quasi co-location QCL relationship of the received SSB. SSBs corresponding to the same modulo result have a QCL relationship.

In one implementation manner, in this embodiment of the present application, modulo the actually transmitted SSB by using the extended SSB index may be understood as grouping the candidate sending positions of one SSB transmission period according to the number of actually transmitted SSBs, where each group of candidate sending positions includes the number of candidate sending positions equal to the number of actually transmitted SSBs. Each set of candidate transmission locations may be used to transmit SSBs, and if a network device detects that a channel is idle at a certain set of candidate transmission locations, the network device may transmit SSBs using the set of candidate transmission locations.

In any SSB transmission period, the SSBs may be transmitted using a set of candidate transmission positions, where at least one SSB transmitted in one SSB transmission period has a QCL relationship with at least one SSB transmitted in another SSB transmission period.

For example, as shown in fig. 10, the candidate transmission positions of SSBs are 16, the extended SSB index is from 0 to 15, the number of SSBs included in the SSB cluster is 8, and the number N of actually transmitted SSBs is 4, so it can be understood that the 16 candidate transmission positions can be divided into 4 groups, the extended SSB index of group 1 is 0-3, the extended SSB index of group 2 is 4-7, the SSB index of group 3 is 8-11, and the SSB index of group 4 is 12-15. Each SSB transmission cycle may transmit an SSB using a respective set of candidate transmit positions. The SSBs transmitted by the same location in the set of candidate transmission locations have a QCL relationship for different SSB transmission periods.

It should be understood that the embodiments of the present application are not limited to the above description, and for example, SSBs may be transmitted in a manner similar to that shown in fig. 5.

For example, assuming that the maximum number of SSB candidate transmission positions is 64 and the number of actually transmitted SSBs is 4, SSBs transmitted at a candidate transmission position with an extended SSB index of 0,4,8,12 … have a QCL relationship, SSBs transmitted at a candidate transmission position with an extended SSB index of 1,5,9,13 … have a QCL relationship, SSBs transmitted at a candidate transmission position with an extended SSB index of 2,6,10,14 … have a QCL relationship, SSBs transmitted at a candidate transmission position with an extended SSB index of 3,7,11,15 … have a QCL relationship, and if the network device detects that a channel is free before the extended SSB index is 21, SSBs may be transmitted at

positions

21,22,23 and 24 with an extended SSB index of 6253 zxft.

In the case where the QCL relationship of the SSBs is determined depending on the number of actually transmitted SSBs, the actually transmitted SSBs may be consecutive.

In this case, the indication information may not really indicate the SSBs actually transmitted in the SSB cluster, since it is assumed that the number of SSBs actually transmitted in one SSB transmission cycle is 64, the number of SSBs actually transmitted is 4, the 64 candidate transmission positions may be divided into 16 groups, each group may transmit the 4 SSBs, at this time, if the network device detects an SSB before each group of candidate transmission positions, the network device may transmit the 4 SSBs by using the group of candidate transmission positions, and in the next SSB transmission cycle, if an SSB is detected before any group of candidate transmission positions, the network device may transmit 4 SSBs in the group, and the 4 SSBs respectively have a QCL relationship with the SSBs in the previous cycle.

Thus, in the case of indicating the actually transmitted SSB in a bit-mapped manner, the actually transmitted SSB may be indicated using a bit of a fixed position.

For example, assuming that the SSB cluster includes 8 SSBs and the number of actually transmitted SSBs is 4, the first 4 bits of the 8 bits may be used to indicate the actually transmitted SSBs, and if the number of actually transmitted SSBs is 5, the first 5 bits of the 8 bits may be used to indicate the actually transmitted SSBs.

In one implementation manner, in this embodiment of the present application, the terminal device performs a filtering process for the received SSB according to the QCL relationship of the received SSB.

Specifically, during measurement, the terminal device may perform filtering processing on the SSBs having the QCL relationship, and the terminal device in an idle state as a measurement result of a beam level may select a Random Access Channel (RACH) resource bound to the SSBs of a certain beam according to the measurement result to transmit Access. Therefore, the QCL relationship is obtained for the idle terminal device.

From the network device perspective, the QCL relationship between the transmitted SSBs can be guaranteed according to the SSB-positioninburst information indicated in SIB1, so as to be consistent with the result of the QCL relationship determined by the terminal device.

In the embodiment of the present application, the QCL relationship of the SSBs is determined according to the number of actually transmitted SSBs, as shown in fig. 7, if determining the QCL relationship by using the number of SSBs (L mentioned in the embodiment of the present application) included in the SSB cluster may cause that the network device needs to wait for a longer time to transmit the SSBs having the QCL relationship with the transmitted SSBs when detecting that the channel is idle, and determining the QCL relationship of the SSBs by using the number of actually transmitted SSBs may avoid that the network device needs to wait for a longer time to transmit the SSBs, for example, in the case shown in fig. 7, if determining the QCL relationship of the SSBs by using the actually transmitted SSBs, the SSBs may be transmitted at a candidate transmission position index of 0. The problem that channel resources cannot be effectively utilized between the initial position occupied by the channel and the initial position transmittable by the SSB is avoided while the QCL relationship between the SSBs is accurately obtained by the terminal equipment, and the utilization efficiency of the system resources under the unauthorized frequency band is improved.

Therefore, in this embodiment of the present application, the terminal device obtains the number of actually transmitted SSBs in the SSB cluster indicated in the indication information, and determines the QCL relationship based on the number of actually transmitted SSBs, so as to avoid the problem of channel waste caused by determining the QCL relationship by the number of SSBs in the SSB cluster, and borrow the indication information indicating the actually transmitted SSBs to determine the QCL relationship of the SSBs, so as to avoid the need to send an additional indication information (for example, carried in MIB, SIB, or RRC signaling) for indicating the number used for determining the QCL relationship of the SSBs, thereby reducing signaling overhead.

It should be understood that the order of description or sequence number of the steps in the method shown in fig. 9 does not represent the execution order of the steps.

For example, 210 and 230 may be performed simultaneously. 240 and 260 may be performed simultaneously. 270 may be performed prior to 260.

Fig. 11 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application. The terminal device 300 includes a communication unit 310 and a processing unit 320; wherein the content of the first and second substances,

the communication unit 310 is configured to: receiving indication information sent by network equipment, wherein the indication information indicates the SSB actually transmitted in a Synchronization Signal Block (SSB) cluster;

the processing unit 320 is configured to: determining the number of the SSBs actually transmitted according to the SSBs actually transmitted; and determining the quasi co-located QCL relationship of the received SSBs according to the number.

In an implementation manner, in an embodiment of the present application, the indication information is carried in system information or radio resource control RRC signaling.

In one implementation manner, in this embodiment, the system information is a system information block 1SIB1 or a master information block MIB.

In an implementation manner, in this embodiment of the present application, the indication information is SSB-positioninburst information of an SSB position in an SSB cluster.

In one implementation manner, in this embodiment of the present application, the processing unit 320 is further configured to:

and modulo the number by an extended SSB index carried in the received SSB to determine a quasi co-located QCL relationship of the received SSB.

performing filtering processing for the received SSB according to the QCL relationship of the received SSB.

In one implementation manner, in this embodiment, the terminal device is used in an unlicensed spectrum.

It should be understood that the terminal device 300 may be used to implement the corresponding operations implemented by the terminal device in the method embodiment, and for brevity, the description is not repeated here.

Fig. 12 is a schematic block diagram of a network device 400 according to an embodiment of the present application. The network device 400 comprises a communication unit 410 and a processing unit 420. Wherein, the first and the second end of the pipe are connected with each other,

the communication unit 410 is configured to: sending indication information to terminal equipment, wherein the indication information indicates the SSBs actually transmitted in the SSB cluster;

the processing unit 420 is configured to: and determining the quasi co-location QCL relationship of the SSBs to be sent according to the number of the actually transmitted SSBs indicated in the indication information.

In an implementation manner, in an embodiment of the present application, the system information is a system information block SIB1 or a master information block MIB.

In an implementation manner, in an embodiment of the present application, the indication information is SSB-positioninburst information of an SSB position in an SSB cluster.

In one implementation manner, in this embodiment of the present application, the indication information indicates the actually transmitted SSB in a bit mapping manner.

In one implementation manner, in this embodiment of the present application, the processing unit 420 is further configured to:

and modulo the number by the extended SSB index carried in the SSB to be sent to determine the QCL relationship with the SSB to be sent.

and determining the sending position of the SSB to be sent according to the QCL relationship of the SSB to be sent.

In one implementation, in an embodiment of the present application, the network device is used in an unlicensed spectrum.

It should be understood that the network device 400 may be configured to implement corresponding operations implemented by the network device in the method embodiments, and for brevity, details are not described here again.

Fig. 13 is a schematic structural diagram of a communication device 500 according to an embodiment of the present application. The communication device 500 shown in fig. 13 comprises a processor 510, and the processor 510 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

In one implementation, as shown in fig. 13, the communication device 500 may also include a memory 520. From the memory 520, the processor 510 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 520 may be a separate device from the processor 510, or may be integrated into the processor 510.

In one implementation, as shown in fig. 13, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 530 may include a transmitter and a receiver, among others. The transceiver 530 may further include one or more antennas.

In an implementation manner, the communication device 500 may specifically be a network device in the embodiment of the present application, and the communication device 500 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not repeated here.

In an implementation manner, the communication device 500 may specifically be a mobile terminal/terminal device in this embodiment, and the communication device 500 may implement a corresponding process implemented by the mobile terminal/terminal device in each method in this embodiment, which is not described herein again for brevity.

Fig. 14 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 600 shown in fig. 14 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

In one implementation, as shown in fig. 14, chip 600 may also include memory 620. From the memory 620, the processor 610 may call and run a computer program to implement the method in the embodiment of the present application.

The memory 620 may be a separate device from the processor 610, or may be integrated into the processor 610.

In one implementation, the chip 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may obtain information or data transmitted by other devices or chips.

In one implementation, the chip 600 may also include an output interface 640. The processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

In an implementation manner, the chip may be applied to the network device in this embodiment, and the chip may implement a corresponding process implemented by the network device in each method in this embodiment, which is not described herein again for brevity.

In an implementation manner, the chip may be applied to the mobile terminal/terminal device in this embodiment, and the chip may implement a corresponding process implemented by the mobile terminal/terminal device in each method in this embodiment, and for brevity, details are not described here again.

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

Fig. 15 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in fig. 15, the communication system 700 includes a terminal device 710 and a network device 720.

The terminal device 710 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 720 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, which is not described herein again.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting, for example, the memories in the embodiments 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 (DDR SDRAM), enhanced synchronous SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.

In an implementation manner, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

In an implementation manner, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

In an implementation manner, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

In an implementation manner, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods in the embodiments of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

In an implementation manner, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which is not described herein again for brevity.

In an implementation manner, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

the method comprises the steps that terminal equipment receives indication information sent by network equipment, wherein the indication information indicates SSB actually transmitted in an SSB cluster, the indication information is SSB position SSB-PositionsInburst information in the SSB cluster, and the indication information is carried in SIB1 when the terminal equipment is in an idle state;

according to the actually transmitted SSBs, the terminal equipment determines the number of actually transmitted SSBs, wherein the number of actually transmitted SSBs is smaller than the number of the SSBs with the largest transmission in the SSB cluster;

and the terminal equipment modulizes the number of the actually transmitted SSBs with the extended SSB indexes carried in the received SSBs so as to determine the quasi co-location QCL relationship of the received SSBs, wherein the extended SSB indexes carried in the SSBs represent candidate sending positions occupied by the SSBs.

2. The method of claim 1, wherein the indication information is carried in system information or Radio Resource Control (RRC) signaling.

3. The method of claim 2, wherein the system information is a system information block 1SIB1 or a master information block MIB.

4. The method according to any of claims 1 to 3, wherein the indication information indicates the SSBs actually transmitted in the SSB cluster by means of bit mapping.

5. The method according to any one of claims 1 to 3, further comprising:

according to the QCL relationship of the received SSB, the terminal device performs filtering processing for the received SSB.

6. The method according to any of claims 1-3, wherein the method is used in unlicensed spectrum.

7. A method of wireless communication, comprising:

the method comprises the steps that network equipment sends indication information to terminal equipment, wherein the indication information indicates SSB actually transmitted in an SSB cluster, the indication information is SSB position SSB-PositionsInburst information in the SSB cluster, and the indication information is carried in SIB1 when the terminal equipment is in an idle state;

according to the number of actually transmitted SSBs indicated in the indication information, the network device determines a quasi co-located QCL relationship of the SSBs to be transmitted, wherein the number of actually transmitted SSBs is smaller than the number of the SSBs transmitted at the maximum in the SSB cluster;

the determining, by the network device, the QCL relationship of the SSBs to be transmitted according to the number of actually transmitted SSBs indicated in the indication information includes:

and the network equipment modulo the number of the SSBs actually transmitted by the extended SSB index carried in the SSB to be sent so as to determine the QCL relationship of the SSB to be sent, wherein the extended SSB index carried in the SSB represents the candidate sending position occupied by the SSB.

8. The method of claim 7, wherein the indication information is carried in system information or Radio Resource Control (RRC) signaling.

9. The method of claim 8, wherein the system information is a system information block (SIB 1) or a Master Information Block (MIB).

10. The method according to any of claims 7 to 9, wherein the indication information indicates the actually transmitted SSB by means of bit mapping.

11. The method according to any one of claims 7 to 9, further comprising:

12. The method according to any of claims 7-9, wherein the method is used in unlicensed spectrum.

13. A terminal device, characterized by comprising a communication unit and a processing unit; wherein, the first and the second end of the pipe are connected with each other,

the communication unit is configured to: receiving indication information sent by network equipment, wherein the indication information indicates an SSB actually transmitted in an SSB cluster, the indication information is SSB position SSB-PositionsInburst information in the SSB cluster, and the indication information is carried in SIB1 when the terminal equipment is in an idle state;

the processing unit is configured to: determining the number of actually transmitted SSBs according to the actually transmitted SSBs, wherein the number of actually transmitted SSBs is smaller than the number of the SSBs with the largest transmission in the SSB cluster;

the processing unit is further to:

and taking a modulus of an extended SSB index carried in the received SSB to the number of the actually transmitted SSB to determine the quasi co-location QCL relationship of the received SSB, wherein the extended SSB index carried in the SSB represents a candidate sending position occupied by the SSB.

14. The terminal device of claim 13, wherein the indication information is carried in system information or Radio Resource Control (RRC) signaling.

15. The terminal device of claim 14, wherein the system information is a system information block 1SIB1 or a master information block MIB.

16. The terminal device according to any of claims 13 to 15, wherein the indication information indicates the SSBs actually transmitted in the SSB cluster by means of bit mapping.

17. The terminal device of any of claims 13-15, wherein the processing unit is further configured to:

18. The terminal device according to any of claims 13-15, wherein the terminal device is used in unlicensed spectrum.

19. A network device comprising a communication unit and a processing unit; wherein the content of the first and second substances,

the communication unit is configured to: sending indication information to terminal equipment, wherein the indication information indicates SSB actually transmitted in an SSB cluster, the indication information is SSB position SSB-PositionsInburst information in the SSB cluster, and the indication information is carried in SIB1 when the terminal equipment is in an idle state;

the processing unit is configured to: determining a quasi co-location QCL relationship of SSBs to be transmitted according to the number of actually transmitted SSBs indicated in the indication information, wherein the number of actually transmitted SSBs is smaller than the number of SSBs with the maximum transmission in the SSB cluster;

the processing unit is further to:

and modulo an extended SSB index carried in the SSB to be sent to the number of the actually transmitted SSBs to determine the QCL relationship of the SSB to be sent, wherein the extended SSB index carried in the SSB represents the candidate sending position occupied by the SSB.

20. The network device of claim 19, wherein the indication information is carried in system information or Radio Resource Control (RRC) signaling.

21. The network device of claim 20, wherein the system information is a system information block SIB1 or a master information block MIB.

22. The network device according to any of claims 19 to 21, wherein the indication information indicates the actually transmitted SSB by means of bit mapping.

23. The network device of any of claims 19-21, wherein the processing unit is further configured to:

24. The network device of any one of claims 19 to 21, wherein the network device is used in an unlicensed spectrum.

25. A terminal device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 6.

26. A network device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 7 to 12.

27. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 6.

28. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 7 to 12.

29. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 6.

30. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 7 to 12.