CN114846758A

CN114846758A - Method and device for transmitting synchronization signal block

Info

Publication number: CN114846758A
Application number: CN201980103174.1A
Authority: CN
Inventors: 高宽栋; 黄煌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2022-08-02
Also published as: WO2021134626A1

Abstract

The application provides a method and a device for transmitting a synchronous signal block. The configuration information configured by the network device for the terminal may indicate at least two time frequency unit sets, and the SSBs are sent in different time frequency units of the same time domain resource in the at least two time frequency unit sets. The terminal may receive one or more SSBs based on the configuration information. Since different SSBs correspond to different beams (e.g., the beam directions and the SSBs have a one-to-one mapping relationship), the terminal can simultaneously receive the SSBs transmitted through at least two transmission beams. Compared with the traditional scheme that the network equipment can only adopt one sending beam to send the SSB in the same time domain resource, the network equipment in the embodiment of the application can respectively send the SSB in the same time domain resource by adopting two sending beams, so that the time consumption of beam training is reduced.

Description

Method and device for transmitting synchronization signal block

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting a synchronization signal block.

Background

The development of mobile services places increasing demands on the data rate and efficiency of wireless communications. In future wireless communication systems, beamforming techniques are used to limit the energy of the transmitted signal within a certain beam direction, thereby increasing the efficiency of signal transmission and reception. The beam forming technology can effectively enlarge the transmission distance of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and obtaining higher network capacity. However, in a communication network adopting the beamforming technology, it is first necessary to match a transmit beam and a receive beam, i.e. to find a paired transmit beam and receive beam, so that the gain from the transmitting end to the receiving end is maximized. Specifically, a multi-beam terminal may perform beam training prior to receiving a paging message sent by a multi-beam network device. For example, in the case that the network device has 16 transmit beams and the terminal has 8 receive beams, the terminal may perform 8 rounds of beam training to obtain a best-matched beam pair, that is, each round of network device scans all 16 transmit beams by one turn, and the terminal performs reception using one of the 8 receive beams, so as to obtain a transmit beam paired with each of the 8 receive beams of the terminal.

In conventional schemes, beam training may be achieved by transmitting a Synchronization Signal Block (SSB). For example, in the case that the network device has 16 transmit beams and the terminal has 8 receive beams, if each beam corresponds to one SSB index and the duration of each round of beam training is 20ms of a period of one SSB, at least 160ms is required to find corresponding beam pairs for the 8 beams of the terminal. Therefore, conventional schemes take a long time to train the beam.

Disclosure of Invention

The application provides a method and a device for transmitting SSB, which can help to reduce the time consumption of beam training.

In a first aspect, a method for transmitting SSBs is provided, the method including: receiving configuration information, wherein the configuration information is used for indicating at least two time frequency unit sets, the time frequency units in each of the at least two time frequency unit sets correspond to the same frequency domain resource, and different time frequency unit sets correspond to different frequency domain resources, wherein different time frequency units of the same time domain resource in the at least two time frequency unit sets are used for transmitting different SSBs; based on the configuration information, an SSB is received.

The configuration information configured by the network device for the terminal may indicate at least two time frequency unit sets, and the SSBs are sent in different time frequency units of the same time domain resource in the at least two time frequency unit sets. The terminal may receive the SSBs on at least two time-frequency units corresponding to one time-domain resource, respectively, according to the configuration information. Since different SSBs correspond to different beams (e.g., the beam directions and the SSBs have a one-to-one mapping relationship), the terminal can simultaneously receive the SSBs transmitted through at least two transmission beams. Compared with the traditional scheme that the network equipment can only adopt one sending beam to send the SSB in the same time domain resource, the embodiment of the application can respectively send the SSB in the same time domain resource by adopting two sending beams, so that the time consumption of beam training is reduced, and the power consumption overhead of the terminal and the network equipment is reduced.

In some possible implementations, SSBs transmitted by a second subset of time frequency units in other time frequency unit sets of the at least two time frequency unit sets except the first time frequency unit set have a quasi-co-located QCL relationship with SSBs transmitted by the first subset of time frequency units, where the first subset of time frequency units are time frequency units in the first time frequency unit set, and time domain resources of the first subset of time frequency units and the second subset of time frequency units are different.

The first set of time frequency units may be any one of the at least two sets of time frequency units. The SSBs transmitted by the second time frequency unit in the other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets may have a QCL relationship with the SSBs transmitted by the time frequency units included in the first time frequency unit set. The other time frequency unit sets may be all or part of the time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets. For example, assuming that the first set of time frequency units is a set of CS-SSB time frequency units, the other sets of time frequency units may be at least one of a set of NCD-SSB1 time frequency units, a set of NCD-SSB2 time frequency units, and a set of NCD-SSB3 time frequency units. The time domain resources of the first time frequency unit and the second time frequency unit included in the first time frequency unit set with QCL relationship are different, so that the network device can transmit the SSB by using different transmission beams on the same time domain resource, thereby being beneficial to shortening the time length of beam training.

In some possible implementation manners, each of the at least two time frequency unit sets includes at least two time frequency unit subsets, and SSBs transmitted by a second time frequency unit subset in other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets have a QCL relationship with SSBs transmitted by the first time frequency unit set, where time domain resources of the first time frequency unit subset and the second time frequency unit subset in the first time frequency unit set where SSBs having the QCL relationship are located are different.

The first set of time frequency units may be any one of the at least two sets of time frequency units. The network device or terminal may divide each set of time-frequency units into a plurality of subsets of time-frequency units. The QCL relationship may thus be a QCL relationship between SSBs transmitted by subsets of time-frequency units in different sets of time-frequency units. The time domain resources of the first time frequency unit subset and the second time frequency unit subset included in the first time frequency unit set having the QCL relationship are different, so that the network device can transmit the SSB by using different transmission beams on the same time domain resource, thereby being beneficial to shortening the time length of beam training.

In some possible implementation manners, SSBs transmitted by a subset of time-frequency units in the at least two sets of time-frequency units have a QCL relationship with SSBs transmitted by all subsets of time-frequency units in the first set of time-frequency units except the first subset of time-frequency units, where a time-domain resource of a second subset of time-frequency units is the same as a time-domain resource of the first time-frequency unit, and the second subset of time-frequency units is any subset of time-frequency units where the SSBs having the QCL relationship with the subsets of time-frequency units except the first subset of time-frequency units are located.

In other words, SSBs transmitted by the subset of time-frequency cells of the other frequency-domain resources have a QCL relationship with SSBs transmitted by time-frequency cells in the set of time-frequency cells traversing the first frequency-domain resource other than the first subset of time-frequency cells. Furthermore, the first subset of time frequency units may be any one of the first subset of time frequency units. The time domain resources of different subsets of time frequency units for which the transmitted SSBs have QCL relationships are different. And the time frequency unit subsets of other time frequency resource which have QCL relation with the SSB transmitted by the time frequency unit subsets except the first time frequency unit subset are the same as the time frequency resource of the first time frequency unit subset. Therefore, the SSBs corresponding to a plurality of time-frequency unit subsets can be sent on the same time-domain resource, and the time length of beam training is further shortened.

In some possible implementations, the method further includes: and receiving indication information, wherein the indication information is used for indicating the time frequency unit where the SSB in the first time frequency unit set and the SSB transmitted by the second time frequency unit in the second time frequency unit set have QCL relationship, and the second time frequency unit set is the other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets.

The indication information is used for indicating the time frequency unit in the first time frequency unit set, and the SSB transmitted by the time frequency unit in the first time frequency unit set and the SSB transmitted by the second time frequency unit have a QCL relationship. That is to say, the indication information is used to indicate the time-frequency unit where the two SSBs having the QCL relationship are located, so that the network device can flexibly configure the QCL relationship, and the flexibility of configuration is improved.

In some possible implementations, the method further includes: receiving indication information, where the indication information is used to indicate a time frequency unit subset where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit subset in a second time frequency unit set have a QCL relationship are located, where the second time frequency unit set is another time frequency unit set in the at least two time frequency unit sets except the first time frequency unit set.

The indication information may indicate a QCL relationship of SSBs transmitted by the subset of time-frequency units in the second set of time-frequency units to SSBs transmitted by the subset of time-frequency units in the first set of time-frequency units. That is, the indication information may indicate the location of the SSB having the QCL relationship in a combined form, thereby saving signaling overhead of the indication information.

In some possible implementations, the indication information indicates a number of unit lengths of cyclic shifts of the subset of time-frequency units in the first set of time-frequency units relative to the second subset of time-frequency units.

The terminal acquires the time domain position of the second time frequency unit subset, so that the time domain position of the time frequency unit subset in the first time frequency unit set having QCL relationship with the SSB transmitted by the second time frequency unit subset can be acquired according to the indication information, and the time domain position of the time frequency unit subset in the first time frequency unit set having QCL relationship with the SSB transmitted by the second time frequency unit subset does not need to be specially configured, so that the signaling overhead is saved.

In some possible implementations, the indication information indicates an order of the subset of time frequency units in the second set of time frequency units and an order of the subset of time frequency units in the first set of time frequency units, where SSBs used for transmission by the subset of time frequency units in the same order position have a QCL relationship.

The network device may set a QCL relationship of the SSBs transmitted by the time-frequency unit subsets in different time-frequency unit sets, and inform a location of the time-frequency unit subset where the SSBs having the QCL relationship are located by indicating an order of the time-frequency unit subsets in the different time-frequency unit sets through the indication information. That is, the network device provides another way to configure the QCL relationship, which helps to save the delay of beam training.

In some possible implementations, the receiving indication information includes: receiving system information, wherein the system information comprises the indication information.

The network equipment can multiplex the information in the prior art, and the special transmission of the indication information is avoided, so that the signaling overhead is saved.

In a second aspect, a method for transmitting a synchronization signal block SSB is provided, the method comprising sending configuration information, the configuration information being used to indicate at least two sets of time-frequency units, the time-frequency units in each of the at least two sets of time-frequency units corresponding to the same frequency domain resource, and different sets of time-frequency units corresponding to different frequency domain resources, wherein different time-frequency units of the same time domain resource in the at least two sets of time-frequency units are used to transmit different SSBs; and transmitting SSBs on at least two time-frequency units of the same time-domain resource in the at least two time-frequency unit sets.

The configuration information configured by the network device for the terminal may indicate at least two time frequency unit sets, and the SSBs are sent in different time frequency units of the same time domain resource in the at least two time frequency unit sets. The terminal may receive the SSBs on at least two time-frequency units corresponding to one time-domain resource, respectively, according to the configuration information. Since different SSBs correspond to different beams (e.g., the beam directions and the SSBs have a one-to-one mapping relationship), the terminal can simultaneously receive the SSBs transmitted through at least two transmission beams. Compared with the traditional scheme that the network equipment can only adopt one sending beam to send the SSB in the same time domain resource, the embodiment of the application can respectively send the SSB in the same time domain resource by adopting two sending beams, which is beneficial to reducing the time consumption of beam training and reducing the power consumption overhead of the terminal and the network equipment.

The first set of time frequency units may be any one of the at least two sets of time frequency units. The SSBs transmitted by the second time frequency unit may exist in other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets, and have QCL relationship with the SSBs transmitted by the time frequency units included in the first time frequency unit set. The other time frequency unit sets may be all time frequency unit sets or partial time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets. For example, assuming that the first set of time frequency units is a set of CS-SSB time frequency units, the other sets of time frequency units may be at least one of a set of NCD-SSB1 time frequency units, a set of NCD-SSB2 time frequency units, and a set of NCD-SSB3 time frequency units. The time domain resources of the first time frequency unit and the second time frequency unit included in the first time frequency unit set with the QCL relationship are different, so that the network device can transmit the SSB by using different transmission beams on the same time domain resource, thereby being beneficial to shortening the time length of beam training.

In some possible implementations, the method further includes:

and sending indication information, wherein the indication information is used for indicating the time frequency unit where the SSB in the first time frequency unit set and the SSB transmitted by the second time frequency unit in the second time frequency unit set have QCL relationship, and the second time frequency unit set is the other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets.

In some possible implementations, the method further includes:

and sending indication information, where the indication information is used to indicate a time frequency unit subset where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit subset in a second time frequency unit set have a QCL relationship are located, and the second time frequency unit set is another time frequency unit set except the first time frequency unit set in the at least two time frequency unit sets.

The terminal knows the time domain position of the second time frequency unit subset, and can know the time domain position of the time frequency unit subset in the first time frequency unit set which has QCL relation with the SSB transmitted by the second time frequency unit subset according to the indication information, and does not need to specially configure the time domain position of the time frequency unit subset in the first time frequency unit set which has QCL relation with the SSB transmitted by the second time frequency unit subset, so that the signaling cost is saved.

In some possible implementations, the sending indication information includes: and sending system information, wherein the system information comprises the indication information.

The network device can reuse the information in the prior art, thereby avoiding specially sending the indication information and saving the signaling overhead.

In a third aspect, an apparatus for transmitting a synchronization signal block SSB is provided, where the apparatus may be a terminal or a chip for a terminal, such as a chip that can be disposed in a terminal. The apparatus has the functionality to implement the first aspect described above, as well as various possible implementations. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the apparatus includes: a processing module and a transceiver module, which may be at least one of a transceiver, a receiver, a transmitter, for example, which may include a receiving module and a transmitting module, and in particular may include a radio frequency circuit or an antenna. The processing module may be a processor. Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected with the storage module, and the processing module can execute the instructions stored in the storage module or other instructions from other sources, so as to enable the apparatus to execute the communication method of the first aspect and various possible implementations. In this design, the device may be a terminal.

In another possible design, when the device is a chip, the chip includes: a processing module and a transceiver module, which may be, for example, an input/output interface, pins or circuits on the chip, etc. The processing module may be, for example, a processor. The processing module can execute instructions to cause a chip within the terminal to perform the above-described, and any possible implemented, communication methods. Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, a cache, and the like. The memory module may also be located within the communication device, but outside the chip, such as a read-only memory (ROM) or other types of static memory devices that may store static information and instructions, a Random Access Memory (RAM), and so on.

The processor mentioned in any of the above may be a general purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling program execution of the method according to the first aspect and any possible implementation.

In a fourth aspect, an apparatus for transmitting a synchronization signal block SSB is provided, where the apparatus may be a network device or a chip for a network device, such as a chip that may be disposed in a network device. The apparatus has the functionality to implement the second aspect described above, as well as various possible implementations. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more modules corresponding to the functions described above.

In one possible design, the apparatus includes: a transceiver module, which may be at least one of a transceiver, a receiver, a transmitter, for example, and a processing module, which may include a receiving module and a transmitting module, and in particular may include a radio frequency circuit or an antenna. The processing module may be a processor.

Optionally, the apparatus further comprises a storage module, which may be a memory, for example. When included, the memory module is used to store instructions. The processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or the instructions from other sources, so as to cause the apparatus to perform the method of the second aspect or any one of the above aspects.

In another possible design, when the device is a chip, the chip includes: a transceiver module, which may be, for example, an input/output interface, pins, or circuitry on the chip, and a processing module. The processing module may be, for example, a processor. The processing module may execute instructions to cause a chip within the network device to perform the second aspect described above, as well as any possible implemented communication method.

Alternatively, the processing module may execute instructions in a memory module, which may be an on-chip memory module, such as a register, a cache, and the like. The memory module may also be located within the communication device, but outside the chip, such as a read-only memory (ROM) or other types of static memory devices that may store static information and instructions, a Random Access Memory (RAM), and so on.

The processor mentioned in any of the above may be a general purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the method of the second aspect.

In a fifth aspect, there is provided an apparatus comprising means for implementing the method as described in the first aspect, and any possible implementation thereof.

In a sixth aspect, there is provided an apparatus comprising means for implementing the method as described in the second aspect, and any possible implementation thereof.

In a seventh aspect, there is provided an apparatus comprising a processor configured to invoke a program stored in a memory to perform the method as described in the first aspect and any possible implementation manner thereof.

In an eighth aspect, there is provided an apparatus comprising a processor for invoking a program stored in a memory to perform the method as described in the second aspect, and any possible implementation thereof.

In a ninth aspect, there is provided an apparatus comprising: a processor and interface circuitry, the processor being adapted to communicate with other devices via the interface circuitry and to perform the method as claimed in the first aspect and any possible implementation thereof.

In a tenth aspect, there is provided an apparatus comprising: a processor and interface circuitry, the processor being adapted to communicate with other devices via the interface circuitry and to perform the method as claimed in the second aspect and any possible implementation thereof.

In an eleventh aspect, there is provided a terminal comprising the apparatus of any one of the fifth, seventh or ninth aspects, and any possible implementation manner thereof.

A twelfth aspect provides a network device, including the apparatus in any one of the sixth aspect, the eighth aspect, or the tenth aspect, and any possible implementation manner thereof.

In a thirteenth aspect, there is provided a computer storage medium storing instructions which, when executed, implement the method as claimed in the first aspect, and any possible implementation thereof.

In a fourteenth aspect, there is provided a computer storage medium storing instructions that, when executed, implement the method of the second aspect, and any possible implementation thereof.

In a fifteenth aspect, a computer storage medium is provided, having program code stored therein for instructing the execution of the instructions of the method in the first aspect, and any possible implementation thereof.

In a sixteenth aspect, there is provided a computer storage medium having stored therein program code for instructing execution of the instructions of the method of the second aspect, and any possible implementation thereof.

A seventeenth aspect provides a computer program product comprising instructions which, when run on a processor, cause a computer to perform the method of the first aspect described above, or any possible implementation thereof.

In an eighteenth aspect, there is provided a computer program product comprising instructions which, when run on a processor, cause a computer to perform the method of the second aspect described above, or any possible implementation thereof.

A nineteenth aspect provides a communication system comprising means having functionality to implement the methods of the first aspect and various possible designs, and means having functionality to implement the methods of the second aspect and various possible designs.

Based on the above technical solution, the configuration information configured for the terminal by the network device may indicate at least two time frequency unit sets, and the SSBs are sent in different time frequency units of the same time domain resource in the at least two time frequency unit sets. The terminal may receive the SSBs on at least two time-frequency units corresponding to one time-domain resource, respectively, according to the configuration information. Since different SSBs correspond to different beams (e.g., the beam directions and the SSBs have a one-to-one mapping relationship), the terminal can simultaneously receive the SSBs transmitted through at least two transmission beams. Compared with the traditional scheme that the network equipment can only adopt one sending beam to send the SSB in the same time domain resource, the embodiment of the application can respectively send the SSB in the same time domain resource by adopting two sending beams, so that the time consumption of beam training is reduced, and the power consumption overhead of the terminal and the network equipment is reduced.

Drawings

FIG. 1 is a schematic diagram of a communication system of the present application;

fig. 2 is a schematic flow chart of a method of transmitting SSBs of a conventional scheme;

FIG. 3 is a schematic diagram of a method of transmitting SSBs according to one embodiment of the application;

FIG. 4 is a schematic diagram of a method of transmitting SSBs according to an embodiment of the present application;

FIG. 5 is a schematic block diagram of an apparatus for transmitting SSBs according to an embodiment of the present application;

FIG. 6 is a schematic block diagram of an apparatus for transmitting SSB according to an embodiment of the present application;

FIG. 7 is a schematic block diagram of an apparatus for transmitting SSBs according to another embodiment of the present application;

FIG. 8 is a schematic block diagram of an apparatus for transmitting SSBs according to an embodiment of the present application;

FIG. 9 is a schematic block diagram of an apparatus for transmitting SSBs according to an embodiment of the present application;

FIG. 10 is a schematic block diagram of an apparatus for transmitting SSBs according to another embodiment of the present application;

fig. 11 is a schematic configuration diagram of a communication apparatus of another embodiment of the present application;

fig. 12 is a schematic configuration diagram of a communication apparatus according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, future fifth generation (5G) or new radio NR systems, etc.

A terminal device in the embodiments of the present application may refer to a user equipment, an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote terminal device, a mobile device, a user terminal device, a wireless communication device, a user agent, or a user equipment. The terminal device may also 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 a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment of the present application.

The network device in the embodiment of the present application may be a device for communicating with a terminal device, the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NodeB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved NodeB (NB), eNB or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, one or a set of antenna panels (including multiple antenna panels) of a base station in a 5G system, alternatively, the network node may also be a network node that forms a gNB or a transmission point, such as a baseband unit (BBU), a Distributed Unit (DU), or the like, and the embodiment of the present application is not limited.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is a schematic diagram of a communication system of the present application. The communication system in fig. 1 may include at least one terminal (e.g., terminal 10, terminal 20, terminal 30, terminal 40, terminal 50, and terminal 60) and a network device 70. The network device 70 is configured to provide a communication service to a terminal and access a core network, and the terminal may access the network by searching for a synchronization signal, a broadcast signal, and the like transmitted by the network device 70, thereby performing communication with the network. The

terminals

10, 20, 30, 40 and 60 in fig. 1 may perform uplink and downlink transmissions with the network device 70. For example, the network device 70 may transmit a downlink signal to the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60, or may receive an uplink signal transmitted by the terminal 10, the terminal 20, the terminal 30, the terminal 40, and the terminal 60.

The terminal 40, the terminal 50, and the terminal 60 may be regarded as one communication system, and the terminal 60 may transmit a downlink signal to the terminal 40 and the terminal 50 or may receive an uplink signal transmitted from the terminal 40 and the terminal 50.

It should be noted that the embodiments of the present application may be applied to a communication system including one or more network devices, and may also be applied to a communication system including one or more terminals, which is not limited in the present application.

It should be understood that the network devices included in the communication system may be one or more. A network device may send data or control signaling to one or more terminals. Multiple network devices may also transmit data or control signaling to one or more terminals simultaneously.

The following is a detailed description of the terms to which this application relates:

1. beam (beam):

the representation of a beam in the NR protocol may be a spatial domain filter, or a so-called spatial filter or spatial parameter. A beam used for transmitting a signal may be referred to as a transmission beam (Tx beam), may be referred to as a spatial domain transmission filter (spatial domain transmission filter), or a spatial transmission parameter (spatial transmission parameter); the beam used for receiving the signal may be referred to as a reception beam (Rx beam), may be referred to as a spatial domain receive filter (spatial Rx filter), or a spatial Rx parameter (spatial Rx parameter).

The transmit beam may refer to a distribution of signal strengths formed in different spatial directions after the signal is transmitted through the antenna, and the receive beam may refer to a distribution of signal strengths of the wireless signal received from the antenna in different spatial directions.

Further, the beam may be a wide beam, or a narrow beam, or other type of beam. The technique for forming the beam may be a beamforming technique or other technique. The beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology.

The beam generally corresponds to the resource, for example, when the beam measurement is performed, the network device measures different beams through different resources, the terminal feeds back the measured resource quality, and the network device knows the quality of the corresponding beam. In data transmission, the beam information is also indicated by its corresponding resource. For example, the network device indicates the information of the terminal PDSCH beam through the resources in the TCI of the DCI.

Alternatively, a plurality of beams having the same or similar communication characteristics are regarded as one beam. One or more antenna ports may be included in a beam for transmitting data channels, control channels, sounding signals, and the like. The one or more antenna ports forming one beam may also be seen as one set of antenna ports.

In beam measurement, each beam of the network device corresponds to one resource, so that the beam corresponding to the resource can be uniquely identified by the index of the resource.

2. Resource:

in the beam measurement, a beam corresponding to a resource can be uniquely identified by an index of the resource. The resource may be an uplink signal resource or a downlink signal resource. Uplink signals include, but are not limited to, Sounding Reference Signals (SRS), demodulation reference signals (DMRS). Downlink signals include, but are not limited to: a channel state information reference signal (CSI-RS), a cell specific reference signal (CS-RS), a UE specific reference signal (US-RS), a demodulation reference signal (DMRS), and a synchronization signal/physical broadcast channel block (SS/PBCH block). Wherein, SS/PBCH block may be referred to as Synchronization Signal Block (SSB) for short. Wherein the SSB may contain at least one of a primary synchronization signal, a secondary synchronization signal, a physical broadcast channel, and a demodulation reference signal of the physical broadcast channel.

The resources are configured through Radio Resource Control (RRC) signaling. In the configuration structure, a resource is a data structure, and includes relevant parameters of uplink/downlink signals corresponding to the resource, such as types of the uplink/downlink signals, resource granules for carrying the uplink/downlink signals, transmission time and period of the uplink/downlink signals, and the number of ports used for transmitting the uplink/downlink signals. The resource of each uplink/downlink signal has a unique index to identify the resource of the downlink signal. It is to be understood that the index of the resource may also be referred to as an identifier of the resource, and the embodiment of the present application does not limit this.

3. Beam indication information:

for indicating the beams used for transmission, including transmit beams and/or receive beams. Including a beam number, a beam management resource number, an uplink signal resource number, a downlink signal resource number, an absolute index of a beam, a relative index of a beam, a logical index of a beam, an index of an antenna port corresponding to a beam, an antenna port group index corresponding to a beam, an index of a downlink signal corresponding to a beam, a time index of a downlink synchronization signal block corresponding to a beam, Beam Pair Link (BPL) information, a transmission parameter (Tx parameter) corresponding to a beam, a reception parameter (Rx parameter) corresponding to a beam, a transmission weight corresponding to a beam, a weight matrix corresponding to a beam, a weight vector corresponding to a beam, a reception weight corresponding to a beam, an index of a transmission weight corresponding to a beam, an index of a weight matrix corresponding to a beam, an index of a weight vector corresponding to a beam, a reception weight index corresponding to a beam, a reception codebook corresponding to a beam, a reception method of a beam, and a communication system using the same, The downlink signal includes any one of a synchronization signal, a broadcast channel, a broadcast signal demodulation signal, a channel state information downlink signal (CSI-RS), a cell specific reference signal (CS-RS), a terminal equipment specific reference signal (US-RS), a downlink control channel demodulation reference signal, a downlink data channel demodulation reference signal, and a downlink phase noise tracking signal. The uplink signal comprises any one of an uplink random access sequence, an uplink sounding reference signal, an uplink control channel demodulation reference signal, an uplink data channel demodulation reference signal and an uplink phase noise tracking signal. Optionally, the network device may further assign QCL identifiers to beams having quasi-co-location (QCL) relationships among beams associated with the frequency resource groups. The beams may also be referred to as spatial transmit filters, the transmit beams may also be referred to as spatial transmit filters, and the receive beams may also be referred to as spatial receive filters. The beam indication information may also be embodied as a Transmission Configuration Index (TCI), and the TCI may include various parameters, such as a cell number, a bandwidth part number, a reference signal identifier, a synchronization signal block identifier, a QCL type, and the like. The quasi-co-location (QCL) may be used to indicate that the plurality of resources have one or more identical or similar communication characteristics, and the plurality of resources having the quasi-co-location may adopt identical or similar communication configurations. For example, if two antenna ports have a co-located relationship, the channel large scale characteristic of one port transmitting one symbol can be inferred from the channel large scale characteristic of the other port transmitting one symbol. The large scale features may include: delay spread, average delay, doppler spread, doppler shift, average gain, reception parameters, terminal device received beam number, transmit/receive channel correlation, received angle of arrival, spatial correlation of receiver antennas, angle of main arrival (AoA), average angle of arrival, AoA spread, and the like. Spatial quasi-collocated (spatial QCL) can be considered as a type of QCL. Two angles can be understood for spatial: from the transmitting end or from the receiving end. From the transmitting end, if two antenna ports are spatially quasi co-located, it means that the corresponding beam directions of the two antenna ports are spatially identical, i.e., spatial filters are the same. From the receiving end, if it is said that the two antenna ports are spatially quasi-co-located, it means that the receiving end can receive the signals transmitted by the two antenna ports in the same beam direction, i.e. with respect to the receiving parameter QCL.

4、QCL：

The co-location relationship is used to indicate that the plurality of resources have one or more identical or similar communication characteristics, and for the plurality of resources having the co-location relationship, the same or similar communication configuration may be adopted. For example, if two antenna ports have a co-located relationship, the channel large scale characteristic of one port transmitting one symbol can be inferred from the channel large scale characteristic of the other port transmitting one symbol. The large scale features may include: delay spread, average delay, doppler spread, doppler shift, average gain, reception parameters, terminal device received beam number, transmit/receive channel correlation, received angle of Arrival, spatial correlation of receiver antennas, angle of Arrival (angle-of-Arrival, AoA), average angle of Arrival, AoA spread, etc.

5. Spatial quasi-parity (spatial QCL):

a spatial QCL can be considered as a type of QCL. Two angles can be understood for spatial: from the transmitting end or from the receiving end. From the transmitting end, if two antenna ports are spatially quasi-co-located, it means that the corresponding beam directions of the two antenna ports are spatially identical. From the perspective of the receiving end, if it is said that the two antenna ports are spatially quasi-co-located, it means that the receiving end can receive signals transmitted by the two antenna ports in the same beam direction.

6. Quasi co-location assumption (QCL assignment):

it is assumed whether there is a QCL relationship between the two ports. The configuration and indication of the quasi-co-location hypothesis can be used to assist the receiving end in receiving and demodulating the signal. For example, the receiving end can confirm that the a port and the B port have the QCL relationship, that is, the large-scale parameter of the signal measured on the a port can be used for signal measurement and demodulation on the B port.

It should be noted that as technology develops, the terminology of the embodiments of the present application may vary, but all are within the scope of the present application.

In conventional schemes, beam training may be achieved by transmitting SSBs. For example, in the case that the network device has 16 transmit beams and the terminal has 8 receive beams, if each beam corresponds to one SSB index and the duration of each round of beam training is 20ms of a period of one SSB, at least 160ms is required to find corresponding beam pairs for the 8 beams of the terminal. For example, as shown in fig. 2, the SSB is transmitted in time-frequency units of the same frequency domain resource and different time domain resources. Therefore, conventional schemes take a long time to train the beam.

Fig. 3 shows a schematic flow chart of a method of transmitting SSBs according to an embodiment of the present application.

301, the network device sends configuration information to the terminal, where the configuration information is used to indicate at least two time-frequency unit sets, where the time-frequency units in each of the at least two time-frequency unit sets correspond to the same frequency-domain resource, and different time-frequency unit sets correspond to different frequency-domain resources, where different time-frequency units of the same time-domain resource in the at least two time-frequency unit sets are used to transmit different SSBs. Accordingly, the terminal receives the configuration information from the network device.

Specifically, the network device sends configuration information to the terminal, which is used to configure a time-frequency unit for transmitting the SSB for the terminal. The configuration information is used for indicating at least two time frequency unit sets, and the frequency domain resources corresponding to the at least two time frequency unit sets are different. For example, as shown in fig. 4, the configuration information is used to indicate 4 time-frequency unit sets, which are a cell-defining SSB (CD-SSB) time-frequency unit set, a non-cell-defining SSB (NCD-SSB)1 time-frequency unit set, an NCD-SSB2 time-frequency unit set, and an NCD-SSB3 time-frequency unit set, respectively. Wherein each time-frequency unit set comprises 16 time-frequency units for transmitting SSB.

It should be noted that one time frequency unit set may include one or more time frequency units, and the number of the time frequency units included in different time frequency unit sets may be the same or different, which is not limited in the present application.

It is understood that different frequency domain resources can be understood as different frequency points.

It is also understood that the time frequency unit in the embodiment of the present application may be an "SSB unit".

It is also understood that the SSBs transmitting different signals in the embodiments of the present application may be understood as transmitting different signals. Wherein different SSBs may be understood as SSBs of different indices.

Optionally, the time-frequency unit of the type NCD-SSB may be NCD-SSB1, NCD-SSB2, or NCD-SSB 3.

Optionally, the time frequency unit is a CD-SSB type of time frequency unit may be a CD-SSB.

The network device sends SSBs on at least two time-frequency cells of the same time-domain resource in the at least two sets of frequency-domain cells 302. Accordingly, the terminal receives the SSBs on at least two time-frequency cells of the same time-domain resource in the at least two sets of frequency-domain cells.

Specifically, the configuration information configured by the network device for the terminal may indicate at least two time frequency unit sets, and the SSBs are sent in different time frequency units of the same time domain resource in the at least two time frequency unit sets. The terminal may receive a plurality of SSBs according to the configuration information. Since different SSBs correspond to different beams (e.g., the beam directions and the SSBs have a one-to-one mapping relationship), the terminal can simultaneously receive the SSBs transmitted through at least two transmission beams. Compared with the traditional scheme that the network equipment can only adopt one sending beam to send the SSB in the same time domain resource, the embodiment of the application can respectively send the SSB in the same time domain resource by adopting two sending beams, so that the time consumption of beam training is reduced, and the power consumption overhead of the terminal and the network equipment is reduced.

For example, as shown in fig. 4, the network device may use 4 transmission beams to simultaneously transmit SSBs in a time-frequency unit identified as SSB1 in the CD-SSB time-frequency unit set, a time-frequency unit identified as SSB1 in the NCD-SSB1 time-frequency unit set, a time-frequency unit identified as SSB1 in the NCD-SSB2 time-frequency unit set, and a time-frequency unit identified as SSB1 in the NCD-SSB3 time-frequency unit set, and the terminal may use one reception beam to receive SSBs respectively transmitted by the 4 transmission beams. Obviously, compared with the conventional scheme, the embodiment of the application shortens the time for measuring the transmitting beam paired with one receiving beam, namely shortens the time for training the beam.

Optionally, SSBs transmitted by a second time frequency unit in other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets have a QCL relationship with SSBs transmitted by time frequency units included in the first time frequency unit set, where the first time frequency unit in the first time frequency unit set and the second time frequency unit in which the SSBs having the QCL relationship are located have different time domain resources.

In particular, the first set of time frequency units may be any one of the at least two sets of time frequency units. The SSBs transmitted by the second time frequency unit in the other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets may have a QCL relationship with the SSBs transmitted by the time frequency units included in the first time frequency unit set. The other time frequency unit sets may be all time frequency unit sets or partial time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets. For example, assuming that the first set of time frequency units is a set of CS-SSB time frequency units, the other sets of time frequency units may be at least one of a set of NCD-SSB1 time frequency units, a set of NCD-SSB2 time frequency units, and a set of NCD-SSB3 time frequency units. The different time domain resources of the first time frequency unit and the second time frequency unit with QCL relation SSB are used for realizing that the network equipment adopts different sending wave beams to send the SSB on the same time domain resource, thereby being beneficial to realizing the shortening of the time length of wave beam training.

That is, the two SSBs having QCL relationships have different times, and different frequency domain locations. The time-frequency units included in the first time-frequency unit set may be time-frequency units where SSBs defined by non-cells are located, and the time-frequency units in the second time-frequency unit set may be time-frequency units where SSBs defined by cells are located.

It can be understood that, in the embodiment of the present application, the SSB transmitted by the first time-frequency unit and the SSB transmitted by the second time-frequency unit have a QCL relationship, and it may be that the network device transmits the SSB on the first time-frequency unit and the SSB on the second time-frequency unit by using the same transmission beam.

It should be noted that, when there are multiple other sets of time frequency units, each set of time frequency units may have a QCL relationship between the SSB transmitted by one time frequency unit and the SSB transmitted by the time frequency unit in the first set of time frequency units.

For example, as shown in fig. 4, a time-frequency unit identified as SSB1 in the NCD-SSB1 set of time-frequency units has a QCL relationship with the SSB transmitted by the time-frequency unit identified as SSB13 in the CD-SSB set of time-frequency units; the time frequency unit identified as SSB1 in the NCD-SSB2 time frequency unit set has QCL relationship with the SSB transmitted by the time frequency unit identified as SSB9 in the CD-SSB time frequency unit set; the time frequency unit identified as SSB1 in the NCD-SSB3 set of time frequency units has a QCL relationship with the SSB transmitted by the time frequency unit identified as SSB5 in the CD-SSB set of time frequency units.

It should also be noted that SSBs transmitted by different sets of time frequency units may have a QCL relationship with SSBs transmitted by different time frequency units in the first set of time frequency units.

Optionally, SSBs transmitted by a subset of time-frequency units in the at least two sets of time-frequency units have a QCL relationship with SSBs transmitted by all subsets of time-frequency units in the first set of time-frequency units except the first subset of time-frequency units, wherein time-domain resources of a second subset of time-frequency units are the same as time-domain resources of the first subset of time-frequency units, and the second subset of time-frequency units is combined into any one subset of time-frequency units where SSBs having a QCL relationship with the subset of time-frequency units in the first set of time-frequency units except the first subset of time-frequency units are located.

Specifically, SSBs transmitted by the time-frequency unit subsets of the other frequency-domain resources have a QCL relationship with SSBs transmitted by time-frequency units in the time-frequency unit set traversing the first frequency-domain resource except the first time-frequency unit subset. Furthermore, the first subset of time frequency units may be any one of the first subset of time frequency units. The time domain resources of different subsets of time frequency units for which the transmitted SSBs have QCL relationships are different. And the time frequency unit subsets of other time frequency resource which have QCL relation with the SSB transmitted by the time frequency unit subsets except the first time frequency unit subset are the same as the time frequency resource of the first time frequency unit subset. Therefore, the SSBs corresponding to a plurality of time-frequency unit subsets can be sent on the same time-domain resource, and the time length of beam training is further shortened.

It can be understood that the time frequency unit sets may include one or more time frequency unit subsets, and the number of the time frequency unit subsets included in different time frequency unit sets may be the same or different.

Optionally, SSBs transmitted in all frequency bins for the duration of the first subset of time-frequency units may have a QCL relationship with SSBs transmitted in all time-frequency units in the first subset of time-frequency units. All SSBs in the first time-frequency set may not include the SSBs of the frequency point where the first time-frequency unit set is located. For example, as shown in fig. 4, the SSB indexes in the first subset of time frequency units are SSB1, SSB2, SSB3, and SSB4 in CD-SSB, then the

SSB indexes

1,2,3,4 in NCD-SSB1, NCD-SSB2, and the

SSB indexes

5,6,7,8,9,10,11,12,13,14,15,16 in NCD-SSB4 in the duration have QCL relations with the

SSB indexes

5,6,7,8,9,10,11,12,13,14,15,16 in CD-SSB, that is, 1 to 16 SSBs in the first subset of time frequency units have QCL relations in the duration of the subset except for the

SSB indexes

1,2,3,4 in CD-SSB. This is because

SSBs

1,2,3,4 do not need to set QCL relationships separately during this time period.

For example, if the network device includes 16 sending beams, the time-frequency unit identified as SSB1-SSB4 in the NCD-SSB1 time-frequency unit set and the SSB transmitted by the time-frequency unit identified as SSB13-SSB16 in the CD-SSB time-frequency unit set have a QCL relationship (that is, the time-frequency unit identified as SSB1-SSB4 in the NCD-SSB1 time-frequency unit set is different from the time-frequency unit identified as SSB13-SSB16 in the CD-SSB time-frequency unit set in time-frequency unit set, and the time-frequency unit identified as SSB1-SSB4 in the NCD-SSB1 time-frequency unit set is the same as the time-frequency unit identified as SSB1-SSB4 in the CD-SSB time-frequency unit set); the time frequency unit identified as SSB1-SSB4 in the NCD-SSB2 time frequency unit set has a QCL relationship with the SSB transmitted by the time frequency unit identified as SSB9-SSB12 in the CD-SSB time frequency unit set; the time-frequency unit identified as SSB1-SSB4 in the NCD-SSB3 time-frequency unit set has a QCL relationship with the SSB transmitted by the time-frequency unit identified as SSB5-SSB8 in the CD-SSB time-frequency unit set, so that the network device can complete the pairing with a certain receiving beam of the terminal by the time corresponding to the time-frequency unit identified as SSB1-SSB4 (i.e., the first time-frequency unit subset).

Optionally, SSBs transmitted by a second subset of time frequency units in other time frequency unit sets except the first time frequency unit in the at least two time frequency unit sets have a QCL relationship with SSBs transmitted by the subset of time frequency units included in the first time frequency unit set, where the first time frequency unit subset and the second time frequency unit subset in the first time frequency unit set where the SSBs having the QCL relationship are located have different time domain resources.

In particular, the network device or the terminal may divide each set of time-frequency units into one or more subsets of time-frequency units. For example, as shown in fig. 4, the CD-SSB time frequency unit set is divided into 4 time frequency unit subsets, that is, SSB1-SSB4 is time frequency unit subset 1, SSB5-SSB8 is time frequency unit subset 2, SSB9-SSB12 is time frequency unit subset 3, and SSB13-SSB16 is time frequency unit subset 4. Some or all of the time-frequency units in the subsets of the other sets of time-frequency units may have a QCL relationship with the time-frequency units included in the first set of time-frequency units. In addition, the first set of time frequency units may also be divided into subsets of time frequency units. Thus, the QCL relationship may be a QCL relationship between SSBs transmitted by subsets of time-frequency units in different sets of time-frequency units.

For example, the SSB transmitted by subset 1 of time-frequency units in the NCD-SSB1 set of time-frequency units may have a QCL relationship with the SSB transmitted by subset 4 of time-frequency units in the CD-SSB set of time-frequency units.

It is understood that the QCL relationship between the SSBs transmitted by the subset of time-frequency cells may be that the SSBs transmitted by each time-frequency cell in the subset of time-frequency cells have a QCL relationship in turn. Namely, the n × M + (1-M) SSBs transmitted in the second time-frequency unit set and the n1 × M + (1-M) SSBs transmitted in the first time-frequency unit set have QCL relationship, respectively, where n ≠ n 1. For example, the SSB transmitted by the time-frequency unit identified as SSB1 in the subset 1 of time-frequency units in the NCD-SSB1 set of time-frequency units has a QCL relationship with the SSB transmitted by the time-frequency unit identified as SSB13 in the subset 4 of time-frequency units in the CD-SSB set of time-frequency units; a QCL relationship is established between SSB transmitted by the time-frequency unit identified as SSB2 in the time-frequency unit subset 1 in the NCD-SSB1 time-frequency unit set and SSB transmitted by the time-frequency unit identified as SSB14 in the time-frequency unit subset 4 in the CD-SSB time-frequency unit set; and so on, in order to avoid repetition, the description is not repeated here.

It should be noted that, in the embodiment of the present application, the number of the time frequency units included in different time frequency unit subsets of the same frequency point is the same.

It is understood that the number L of the time-frequency unit subsets divided in the time-frequency unit set may be the same as the number N of frequency points, or the number L of frequency points may be smaller than a multiple of the number N of time-frequency unit subsets. Correspondingly, the number M of each frequency domain subset is K/L or floor (K/L) or ceil (K/L), where K is the number of time frequency units corresponding to each frequency point, that is, the number of time frequency units included in each time frequency unit set.

For example, as shown in fig. 4, each time-frequency unit set includes 16 time-frequency units, and the time-frequency unit sets have 4 frequency points, each time-frequency unit set may be divided into 4 time-frequency unit subsets, or into 2 time-frequency unit subsets.

In other words, the at least two sets of time frequency units include a first set of time frequency units and a second set of time frequency units, the first set of time frequency units includes a first subset of time frequency units and a second subset of time frequency units, the second set of time frequency units includes a third subset of time frequency units, SSBs transmitted by each time frequency unit in the second subset of time frequency units and SSBs transmitted by each time frequency unit in the third subset of time frequency units have a QCL relationship, wherein the first subset of time frequency units includes one or more time frequency units, the second subset of time frequency units includes one or more time frequency units, and the third subset of time frequency units includes one or more time frequency units.

Optionally, the at least two sets of time frequency units further include a third set of time frequency units, the first set of time frequency units further includes a fourth subset of time frequency units, the third set of time frequency units includes a fifth subset of time frequency units, SSBs transmitted by each time frequency unit in the fifth subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the fourth subset of time frequency units, the fourth subset of time frequency units includes one or more time frequency units, and the fifth subset of time frequency units includes one or more time frequency units.

In an embodiment, before step 302, the terminal may further receive indication information, where the indication information indicates a time frequency unit in which an SSB in the first set of time frequency units and an SSB transmitted by a time frequency unit in the second set of time frequency units have a QCL relationship.

Specifically, the indication information is used to indicate a time frequency unit in a first time frequency unit set, and an SSB transmitted by the time frequency unit in the first time frequency unit set and an SSB transmitted by the second time frequency unit have a QCL relationship. That is, the indication information is used to indicate the time-frequency unit where two SSBs having QCL relationship are located.

It can be understood that QCL relationships between SSBs transmitted by time frequency units in different time frequency unit sets and SSBs transmitted by time frequency units in the first time frequency unit set may be indicated by indication information respectively, or may be indicated by one indication information at the same time.

In one embodiment, the indication information is a PBCH field of the second time frequency unit, and the PBCH field indicates the time frequency unit in the first set of time frequency units.

Specifically, the indication information may directly indicate the time-frequency unit in the first time-frequency unit set, where SSBs transmitted by the time-frequency unit in the first time-frequency unit set have a QCL relationship with SSBs transmitted by second time-frequency units in other time-frequency unit sets except the first time-frequency unit set in the at least two time-frequency unit sets. For example, the value of the PBCH field in the NCD-SSB1 time-frequency unit set identified as SSB1 (i.e., the SSB transmitted by the second time-frequency unit) indicates that the SSB index is 13, i.e., the SSB in the NCD-SSB1 time-frequency unit set identified as SSB1 has a QCL relationship with the SSB in the CD-SSB time-frequency unit set identified as SSB 13.

It is understood that the PBCH field may also be replaced with a MIB field, or a DMRS field.

It may also be understood that the PBCH field, the MIB field, or the DMRS sequence may directly indicate the index of the SSB. Or the PBCH field, the MIB field, or the DMRS field may indirectly indicate the SSB index. For example, the MIB field may indicate a System Frame Number (SFN), a demodulation reference signal Position of type-a (dmrs-TypeA-Position), a subcarrier spacing (subcarriersspacingmommon), cell barred access information (CellBarred), and intra-frequency cell selection (intra frequency selection), one or more of the remaining bits (spaces), by which to directly indicate an associated SSB index or to indicate an SSB index having a QCL relationship, such as a cell-defined SSB index.

In another embodiment, before step 302, the terminal may further receive indication information, where the indication information indicates a subset of time frequency units where SSBs in the first set of time frequency units and SSBs transmitted by a second subset of time frequency units in a second set of time frequency units have a QCL relationship, where the second set of time frequency units is a set of time frequency units other than the first set of time frequency units in the at least two sets of time frequency units.

In particular, the indication information may indicate a QCL relationship between the SSBs transmitted by the subset of time-frequency units in the second set of time-frequency units and the SSBs transmitted by the subset of time-frequency units in the first set of time-frequency units. That is, the indication information may indicate the location of the SSB having the QCL relationship in a combined form, thereby saving signaling overhead of the indication information.

In one example, the indication information indicates a number of unit lengths of a cyclic shift of a subset of time-frequency units of the first set of time-frequency units relative to the second subset of time-frequency units.

Specifically, the indication information may indirectly indicate a location of a subset of time-frequency units in the first set of time-frequency units where SSBs having a QCL relationship with SSBs transmitted by the second subset of time-frequency units are located (e.g., the first subset of time-frequency units described below). The indication information may indicate that the number of unit lengths is i, i.e. the first subset of time frequency units is offset by i unit lengths with respect to the second subset of time frequency units, the unit lengths being the number of subsets of time frequency units. For example, the second subset of time frequency units in the NCD-SSB1 set of time frequency units is time frequency unit subset 1 (time frequency unit subset 1 includes time frequency units for transmitting SSB1-SSB 4), and if i ═ 1, then time frequency unit subset 2 in the first set of time frequency units (time frequency unit subset 2 includes time frequency units for transmitting SSB5-SSB 8) has a QCL relationship with time frequency unit subset 1 in the NCD-SSB1 set of time frequency units.

Optionally, the network device may configure the frequency point of NCD-SSB1, and the configuration of the frequency point position may be configured based on an absolute global channel frequency domain grid configuration, or based on a global synchronization channel frequency domain grid configuration, or based on an offset configuration. The reference position of the offset can be the frequency domain position of the CD-SSB, and can also be the frequency domain position of other NCD-SSBs. When the network device configures the frequency domain position, the sequence may be configured, and the cyclic shift length may also be configured. When configuring the sequence, the network device instructs the SSBs in the frequency domain to perform the sequencing, or may not configure the sequence and perform the configuration according to the distance from the reference position. The order may be associated with a cyclic shift length, the order of 0 without cyclic shift may be a frequency domain SSB of the reference position. An order of 1 may cyclically shift the SSBs of one subset, and an order of 2 may cyclically shift the SSBs of two subsets. The sequence may also start with 0 and the reference positions are not counted. The network device may also indicate the frequency domain location and i. Or the network device may indicate the frequency domain position and i M, M representing the unit length.

It should be noted that the i values of different time frequency unit sets indicated by the indication information may be different. For example, the indication information indicates that the subset of time frequency units in the set of NCD-SSB1 time frequency units is offset by 1 unit length relative to the second subset of time frequency units, that the subset of time frequency units in the set of NCD-SSB2 time frequency units is offset by 2 unit lengths relative to the second subset of time frequency units, and that the subset of time frequency units in the set of NCD-SSB3 time frequency units is offset by 3 unit lengths relative to the second subset of time frequency units.

In another example, the indication information indicates a cyclic shift length of a subset of time frequency units in the first set of time frequency units relative to the second subset of time frequency units.

Specifically, the terminal may determine the time domain position of the first subset of time frequency units by combining the time domain position of the second subset of time frequency units and the offset relationship. The location of the second subset of time frequency units may be pre-agreed or configured by the network device. The indication information may indicate L, i.e., the location of a subset of time-frequency units in the first set of time-frequency units and the offset by L time-frequency unit locations relative to the location of the second subset of time-frequency units. For example, the subset of time frequency units in the NCD-SSB1 set of time frequency units is offset by 4 time domain positions relative to the second subset of time frequency units, the subset of time frequency units in the NCD-SSB2 set of time frequency units is offset by 8 time domain positions relative to the second subset of time frequency units, and the subset of time frequency units in the NCD-SSB3 set of time frequency units is offset by 12 time domain positions relative to the second subset of time frequency units.

Optionally, L ═ iJ, where i is the number of unit lengths by which the first subset of time-frequency cells is shifted relative to the second subset of time-frequency cells, and J is the number of frequency-domain cells included in the subset of time-frequency cells. For example, J in fig. 4 is 4, the subset of time-frequency units in the NCD-SSB1 set of time-frequency units is offset by 1 × 4 time-domain positions with respect to the second subset of time-frequency units, the subset of time-frequency units in the NCD-SSB2 set of time-frequency units is offset by 2 × 4 time-domain positions with respect to the second subset of time-frequency units, and the subset of time-frequency units in the NCD-SSB3 set of time-frequency units is offset by 3 × 4 time-domain positions with respect to the second subset of time-frequency units.

It can be understood that the value of i and the value of J may be respectively agreed by the network device and the terminal, or determined and notified to the terminal by the network device, which is not limited in the present application. The value of J can also be related to the number of the time frequency unit subsets divided by different frequency points. The value of i may be the same as the number of partitions of the time-frequency unit subset, or may be smaller than the number of partitions of the time-frequency unit subset.

It can also be understood that the values of i of different frequency points may be the same or different.

It will also be appreciated that the time domain length of the time domain location is the same as the time domain length of the time domain unit.

In yet another example, the indication information indicates an order of a subset of time frequency units in the second set of time frequency units and an order of a subset of time frequency units in the first set of time frequency units, wherein SSBs used for transmission by subsets of time frequency units in the same order position have a QCL relationship.

Specifically, the network device may set a QCL relationship of SSBs transmitted by the time-frequency unit subsets in different time-frequency unit sets, and notify the location of the time-frequency unit subset where the SSBs having the QCL relationship are located, by indicating the sequence of the time-frequency unit subsets in different time-frequency unit sets through the indication information.

For example, the network device may indicate that the order of the subsets of time frequency units in the NCD-SSB1 time frequency unit set is time frequency unit subset 4, time frequency unit subset 1, time frequency unit subset 2, time frequency unit subset 3. The order of the time frequency unit subsets in the CD-SSB time frequency unit set may be sequential order, i.e., time frequency unit subset 1, time frequency unit subset 2, time frequency unit subset 3, and time frequency unit subset 4. Thus, the SSB transmitted by subset 1 of time-frequency units in the set of CD-SSB time-frequency units and the SSB transmitted by subset 4 of time-frequency units in the set of NCD-SSB1 time-frequency units have a QCL relationship.

It can be understood that the order of the time-frequency unit subsets in the CD-SSB time-frequency unit set may be fixed, or may be indicated by the network device, which is not limited in this application.

It will also be appreciated that the order of the subsets of time-frequency elements in the set of time-frequency elements in the CD-SSB may be in other orders.

Alternatively, the network device may set the SSB at a fixed frequency domain location. The SSBs of the fixed frequency domain locations may indicate that the frequency separation between the SSBs of the two frequency domain locations is a fixed value, and the network device may not indicate it, reducing overhead. The fixed value may be a range specified by the protocol, and may be in units of RBs, or in units of bandwidth of SSB, and may be 1,2,3,4,5,6,7,8,9,10, 11. The number of SSBs for a fixed frequency domain location may be some or all of 2,3,4,5,6,7, 8. SSBs in fixed frequency domain locations transmit SSBs with the same QCL relationship at the same time, or SSBs with different QCL relationships. I.e., SSBs at all frequency bins of SSBs at fixed frequency domain locations have QCL relationships.

It can also be understood that the indicating manner of the QCL relationship between the SSBs transmitted by the time-frequency units of different frequency points may be the same or different.

Optionally, the indication information may be carried in system information or other messages, so that signaling overhead can be saved, which is not limited in this application.

The various embodiments described herein may be implemented as stand-alone solutions or combined in accordance with inherent logic and are intended to fall within the scope of the present application.

It is to be understood that, in the above-described method embodiments, the method and the operation implemented by the terminal may also be implemented by a component (e.g., a chip or a circuit) available for the terminal, and the method and the operation implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) available for the network device.

The above description mainly introduces the scheme provided by the embodiments of the present application from various interaction perspectives. It is to be understood that each network element, such as a terminal or a network device, for implementing the above functions, includes a corresponding hardware structure and/or software modules for performing the respective functions. Those of skill in the art would appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the 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.

In the embodiment of the present application, the terminal or the network device may be divided into the functional modules according to the above method examples, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a form of hardware or a form of a software functional module. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given by taking an example in which each function module is divided for each function.

It should be understood that the specific examples in the embodiments of the present application are for the purpose of promoting a better understanding of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

The method provided by the embodiment of the present application is described in detail above with reference to fig. 3 to 4. Hereinafter, the apparatus provided in the embodiment of the present application will be described in detail with reference to fig. 5 to 15. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, for brevity, details are not repeated here, since the details that are not described in detail may be referred to the above method embodiments.

Fig. 5 shows a schematic block diagram of an apparatus 500 for transmitting SSB according to an embodiment of the present application.

It is to be understood that the apparatus 500 may correspond to each terminal or chip within a terminal shown in fig. 1, and a terminal or chip within a terminal in the embodiment shown in fig. 3, and may have any function of a terminal in the method embodiment shown in fig. 3. The apparatus 500 includes a transceiver module 510 and a processing module 520.

The transceiver module 510 is configured to receive configuration information, where the configuration information is used to indicate at least two sets of time frequency units, where the time frequency units in each set of the at least two sets of time frequency units correspond to the same frequency domain resource, and different sets of time frequency units correspond to different frequency domain resources, where different time frequency units of the same time domain resource in the at least two sets of time frequency units are used to transmit different SSBs;

the processing module 520 is configured to receive the SSB through the transceiver module 510 according to the configuration information.

Optionally, SSBs transmitted by a second subset of time frequency units in other time frequency unit sets except the first time frequency unit set in the at least two time frequency unit sets have a quasi-co-located QCL relationship with SSBs transmitted by the first subset of time frequency units, where the first subset of time frequency units are time frequency units in the first time frequency unit set, and time domain resources of the first subset of time frequency units and the second subset of time frequency units are different.

Optionally, the at least two sets of time frequency units include a first set of time frequency units and a second set of time frequency units, the first set of time frequency units includes a first subset of time frequency units and a second subset of time frequency units, the second set of time frequency units includes a third subset of time frequency units, SSBs transmitted by each time frequency unit in the second subset of time frequency units and SSBs transmitted by each time frequency unit in the third subset of time frequency units have a QCL relationship, wherein the first subset of time frequency units includes one or more time frequency units, the second subset of time frequency units includes one or more time frequency units, and the third subset of time frequency units includes one or more time frequency units.

Optionally, the at least two sets of time frequency units further include a third set of time frequency units, the first set of time frequency units further includes a fourth subset of time frequency units, the third set of time frequency units includes a fifth subset of time frequency units, SSBs transmitted by each time frequency unit in the fifth subset of time frequency units and SSBs transmitted by each time frequency unit in the fourth subset of time frequency units have a QCL relationship, the fourth subset of time frequency units includes one or more time frequency units, and the fifth subset of time frequency units includes one or more time frequency units.

Optionally, the time frequency units in the second time frequency unit set or the third time frequency unit set are time frequency units of a non-cell defined NCD-SSB type.

Optionally, the time frequency units in the first set of time frequency units define CD-SSB type time frequency units for a cell.

Optionally, SSBs transmitted by the time-frequency unit subset in the at least two time-frequency unit sets have a QCL relationship with SSBs transmitted by all time-frequency unit subsets other than the first time-frequency unit subset in the first time-frequency unit set, where time-domain resources of the first time-frequency unit subset are the same as time-domain resources of a second time-frequency unit subset, and the second time-frequency unit subset is combined into any one time-frequency unit subset where SSBs transmitted by the time-frequency unit subset other than the first time-frequency unit subset have a QCL relationship with SSBs in the first time-frequency unit set.

Optionally, the transceiver module 510 is further configured to receive indication information, where the indication information is used to indicate a time frequency unit where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit in a second time frequency unit set have a QCL relationship, where the second time frequency unit set is another time frequency unit set in the at least two time frequency unit sets except the first time frequency unit set.

Optionally, the transceiver module 510 is further configured to receive indication information, where the indication information is used to indicate a subset of time frequency units where SSBs in the first set of time frequency units and SSBs transmitted by a second subset of time frequency units in a second set of time frequency units have a QCL relationship, where the second set of time frequency units is a set of other time frequency units in the at least two sets of time frequency units except the first set of time frequency units.

Optionally, the indication information indicates a number of unit lengths of cyclic shift of the subset of time frequency units in the first subset of time frequency units with respect to the second subset of time frequency units.

Optionally, the indication information indicates an order of the subset of time frequency units in the second set of time frequency units and an order of the subset of time frequency units in the first set of time frequency units, where SSBs used for transmission by the subset of time frequency units in the same order position have a QCL relationship.

Optionally, the transceiver module 510 is specifically configured to:

receiving system information, wherein the system information comprises the indication information.

For a more detailed description of the transceiver module 510 and the processing module 520, reference may be made to the related description of the above method embodiments, and no further description is provided here.

Fig. 6 illustrates a communication apparatus 600 provided in an embodiment of the present application, where the apparatus 600 may be the terminal described in fig. 3. The apparatus may employ a hardware architecture as shown in fig. 6. The apparatus may include a processor 610 and a transceiver 630, and optionally, the apparatus may further include a memory 640, the processor 610, the transceiver 630, and the memory 640 communicating with each other through an internal connection path. The related functions implemented by the processing module 520 in fig. 5 can be implemented by the processor 610, and the related functions implemented by the transceiver module 510 can be implemented by the processor 610 controlling the transceiver 630.

Alternatively, the processor 610 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a special-purpose processor, or one or more ics for executing embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions). For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip, etc.), execute a software program, and process data of the software program.

Optionally, the processor 610 may include one or more processors, for example, one or more Central Processing Units (CPUs), and in the case that the processor is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The transceiver 630 is used for transmitting and receiving data and/or signals, and receiving data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.

The memory 640 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an Erasable Programmable Read Only Memory (EPROM), and a compact disc read-only memory (CD-ROM), and the memory 640 is used for storing relevant instructions and data.

The memory 640 for storing program codes and data of the terminal may be a separate device or integrated in the processor 610.

Specifically, the processor 610 is configured to control the transceiver to perform information transmission with the terminal. Specifically, reference may be made to the description of the method embodiment, which is not repeated herein.

In particular implementations, apparatus 600 may also include an output device and an input device, as one embodiment. An output device, which is in communication with the processor 610, may display information in a variety of ways. For example, the output device may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. An input device is in communication with the processor 610 and may receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

It will be appreciated that fig. 6 only shows a simplified design of the communication device. In practical applications, the apparatus may also include other necessary elements respectively, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all terminals capable of implementing the present application are within the protection scope of the present application.

In one possible design, the apparatus 600 may be a chip, such as a communication chip that may be used in a terminal, for implementing the relevant functions of the processor 610 in the terminal. The chip can be a field programmable gate array, a special integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit and a microcontroller which realize related functions, and can also adopt a programmable controller or other integrated chips. The chip may optionally include one or more memories for storing program code that, when executed, causes the processor to implement corresponding functions.

The embodiment of the application also provides a device which can be a terminal or a circuit. The apparatus may be configured to perform the actions performed by the terminal in the above-described method embodiments.

Fig. 7 shows a schematic block diagram of a communication device 700 of an embodiment of the present application.

It should be understood that the apparatus 700 may correspond to the network device or a chip within the network device shown in fig. 1, or the network device or a chip within the network device in the embodiment shown in fig. 3, and may have any function of the network device in the method. The apparatus 700 includes a transceiver module 710.

The transceiver module 710 is configured to send configuration information, where the configuration information is used to indicate at least two sets of time frequency units, where the time frequency units in each set of the at least two sets of time frequency units correspond to the same frequency domain resource, and different sets of time frequency units correspond to different frequency domain resources, where different time frequency units of the same time domain resource in the at least two sets of time frequency units are used to transmit different SSBs;

the transceiver module 710 is further configured to transmit SSBs on at least two time-frequency units of the same time-domain resource in the at least two sets of time-frequency units.

Optionally, the apparatus 700 may further include a processing module 720, and the processing module 720 may be configured to determine the configuration information.

Optionally, the transceiver module 710 is further configured to send indication information, where the indication information is used to indicate a time frequency unit where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit in a second time frequency unit set have a QCL relationship, where the second time frequency unit set is another time frequency unit set in the at least two time frequency unit sets except the first time frequency unit set.

Optionally, the transceiver module 710 is further configured to send indication information, where the indication information is used to indicate a subset of time frequency units where SSBs in the first set of time frequency units and SSBs transmitted by a second subset of time frequency units in a second set of time frequency units have a QCL relationship are located, and the second set of time frequency units is another set of time frequency units in the at least two sets of time frequency units except the first set of time frequency units.

Optionally, the transceiver module 710 is specifically configured to: and sending system information, wherein the system information comprises the indication information.

For a more detailed description of the transceiver module 710 and the processing module 720, reference may be made to the related description of the above method embodiments, and no further description is provided here.

Fig. 8 illustrates a communication apparatus 800 provided in an embodiment of the present application, where the apparatus 800 may be the network device described in fig. 4. The apparatus may employ a hardware architecture as shown in fig. 8. The apparatus may include a processor 810 and a transceiver 820, and optionally, the apparatus may further include a memory 830, the processor 810, the transceiver 820, and the memory 830 being in communication with each other via an internal connection path. The related functions implemented by the processing module 720 in fig. 7 can be implemented by the processor 810, and the related functions implemented by the transceiver module 710 can be implemented by the processor 810 controlling the transceiver 820.

Alternatively, the processor 810 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), a special-purpose processor, or one or more ics for performing the embodiments of the present application. Alternatively, a processor may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions). For example, a baseband processor, or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control a communication device (e.g., a base station, a terminal, or a chip), execute a software program, and process data of the software program.

Optionally, the processor 810 may include one or more processors, for example, one or more Central Processing Units (CPUs), and in the case of one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The transceiver 820 is used for transmitting and receiving data and/or signals, and receiving data and/or signals. The transceiver may include a transmitter for transmitting data and/or signals and a receiver for receiving data and/or signals.

The memory 830 includes, but is not limited to, a Random Access Memory (RAM), a read-only memory (ROM), an Erasable Programmable Read Only Memory (EPROM), and a compact disc read-only memory (CD-ROM), and the memory 830 is used for storing related instructions and data.

The memory 830, which is used to store program codes and data for the network device, may be a separate device or integrated into the processor 810.

Specifically, the processor 810 is configured to control the transceiver to perform information transmission with the terminal. Specifically, reference may be made to the description of the method embodiment, which is not repeated herein.

In particular implementations, apparatus 800 may also include an output device and an input device, as one embodiment. An output device, which is in communication with the processor 810, may display information in a variety of ways. For example, the output device may be a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display device, a Cathode Ray Tube (CRT) display device, a projector (projector), or the like. An input device is in communication with the processor 810 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

It will be appreciated that fig. 8 only shows a simplified design of the communication device. In practical applications, the apparatus may also include other necessary elements respectively, including but not limited to any number of transceivers, processors, controllers, memories, etc., and all network devices that can implement the present application are within the protection scope of the present application.

In one possible design, the apparatus 800 may be a chip, such as a communication chip that may be used in a network device, and is used to implement the relevant functions of the processor 810 in the network device. The chip can be a field programmable gate array, a special integrated chip, a system chip, a central processing unit, a network processor, a digital signal processing circuit and a microcontroller which realize related functions, and can also adopt a programmable controller or other integrated chips. The chip may optionally include one or more memories for storing program code that, when executed, causes the processor to implement corresponding functions.

The embodiment of the application also provides a device, which can be a network device or a circuit. The apparatus may be used to perform the actions performed by the network device in the above-described method embodiments.

Optionally, when the apparatus in this embodiment is a terminal, fig. 9 illustrates a simplified structural diagram of the terminal. For easy understanding and illustration, in fig. 9, the terminal is exemplified by a mobile phone. As shown in fig. 9, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal, executing software programs, processing data of the software programs and the like. The memory is primarily used for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminals may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 9. In an actual end product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal, and the processor having the processing function may be regarded as a processing unit of the terminal. As shown in fig. 9, the terminal includes a transceiving unit 910 and a processing unit 920. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Optionally, a device for implementing a receiving function in the transceiving unit 910 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 910 may be regarded as a transmitting unit, that is, the transceiving unit 910 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

It should be understood that the transceiving unit 910 is configured to perform the transmitting operation and the receiving operation on the terminal side in the above-described method embodiments, and the processing unit 920 is configured to perform other operations on the terminal in the above-described method embodiments besides the transceiving operation.

For example, in one implementation, the processing unit 920 is configured to perform the processing steps of fig. 3 on the terminal side. The transceiving unit 910 is configured to perform transceiving operations in steps 301 and 302 in fig. 3, and/or the transceiving unit 910 is further configured to perform other transceiving steps at the terminal side in this embodiment.

When the device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

Optionally, when the apparatus is a terminal, reference may also be made to the device shown in fig. 10. As an example, the device may perform functions similar to processor 910 of FIG. 6. In fig. 10, the apparatus includes a processor 1001, a transmit data processor 1003, and a receive data processor 1005. The processing module 520 in the embodiment shown in fig. 5 may be the processor 1001 in fig. 10, and performs corresponding functions. The transceiver module 510 in the embodiment shown in fig. 5 may be the sending data processor 1003 and the receiving data processor 1005 in fig. 10. Although fig. 10 shows a channel encoder and a channel decoder, it is understood that these blocks are not limitative and only illustrative to the present embodiment.

Fig. 11 shows another form of the present embodiment. The processing device 1100 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may act as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1103 and an interface 1104. The processor 1103 performs the functions of the processing module 520, and the interface 1104 performs the functions of the transceiver module 510. As another variation, the modulation subsystem includes a memory 1106, a processor 1103, and a program stored on the memory and executable on the processor, which when executed performs the methods described in the embodiments. It should be noted that the memory 1106 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 1100, as long as the memory 1106 is connected to the processor 1103.

When the apparatus in this embodiment is a network device, the network device may be as shown in fig. 12, for example, the apparatus 120 is a base station. The base station can be applied to the system shown in fig. 1 and performs the functions of the network device in the above method embodiment. Base station 120 may include one or more DUs 1201 and one or more CUs 1202. CU1202 may communicate with a next generation core (NC) network. The DU1201 may include at least one antenna 12011, at least one radio unit 12012, at least one processor 12013, and at least one memory 12014. The DU1201 part is mainly used for transceiving radio frequency signals, converting radio frequency signals and baseband signals, and partially processing baseband. CU1202 may include at least one processor 12022 and at least one memory 12021. The CU1202 and the DU1201 can communicate with each other through an interface, wherein a control plane (control plane) interface can be Fs-C, such as F1-C, and a user plane (user plane) interface can be Fs-U, such as F1-U.

The CU1202 part is mainly used for baseband processing, base station control, and the like. The DU1201 and the CU1202 may be physically located together or physically separated, i.e. distributed base stations. The CU1202 is a control center of the base station, and may also be referred to as a processing unit, and is mainly used to perform a baseband processing function. For example, CU1202 may be configured to control a base station to perform the operation procedures described above with respect to the network device in the method embodiments.

Specifically, the baseband processing on the CU and the DU may be divided according to protocol layers of the wireless network, for example, functions of a Packet Data Convergence Protocol (PDCP) layer and above protocol layers are set in the CU, and functions of protocol layers below the PDCP, for example, functions of a Radio Link Control (RLC) layer and a Medium Access Control (MAC) layer are set in the DU. For another example, a CU implements Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP) functions, and a DU implements Radio Link Control (RLC), MAC and Physical (PHY) functions.

Further, optionally, the base station 120 may include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Wherein a DU may include at least one processor 12013 and at least one memory 12014, a RU may include at least one antenna 12011 and at least one radio unit 12012, and a CU may include at least one processor 12022 and at least one memory 12021.

For example, in one implementation, the processor 12013 is configured to perform the process steps on the network device side of fig. 3. A radio frequency unit 12012, configured to perform transceiving operations in steps 301 and 302 in fig. 3.

In an example, the CU1202 may be formed by one or more boards, where the multiple boards may jointly support a radio access network with a single access indication (e.g., a 5G network), or may respectively support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks). The memory 12021 and processor 12022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits. The DU1201 may be formed by one or more boards, where the boards may jointly support a radio access network with a single access instruction (e.g., a 5G network), and may also respectively support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks). The memory 12014 and processor 12013 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It should be understood that the processor 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 modules may be located in ram, flash, rom, prom, or eprom, registers, etc. 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 EPROM (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 (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct bus RAM (DR RAM).

In the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

It should also be understood that the reference herein to first, second, and various numerical designations is merely a convenient division to describe and is not intended to limit the scope of the embodiments of the present application.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes 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. Wherein A or B is present alone, and the number of A or B is not limited. Taking the case of a being present alone, it is understood to have one or more a.

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 implementation. 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 type of logical functional division, and other divisions may be realized in practice, for example, multiple 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: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

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

A method of transmitting a synchronization signal block SSB, comprising:

receiving configuration information, wherein the configuration information is used for indicating at least two sets of time frequency units, the time frequency units in each set of the at least two sets of time frequency units correspond to the same frequency domain resource, and different sets of time frequency units correspond to different frequency domain resources, wherein different time frequency units of the same time domain resource in the at least two sets of time frequency units are used for transmitting different SSBs;

and receiving the SSB according to the configuration information.
The method of claim 1, wherein SSBs transmitted by a second subset of time frequency units in the other sets of time frequency units of the at least two sets of time frequency units except the first set of time frequency units have a quasi-co-located QCL relationship with SSBs transmitted by the first subset of time frequency units, wherein the first subset of time frequency units are time frequency units in the first set of time frequency units, and wherein time domain resources of the first subset of time frequency units and the second subset of time frequency units are different.
The method of claim 1, wherein the at least two sets of time frequency units comprise a first set of time frequency units and a second set of time frequency units, wherein the first set of time frequency units comprises a first subset of time frequency units and a second subset of time frequency units, wherein the second set of time frequency units comprises a third subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the second subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the third subset of time frequency units, wherein the first subset of time frequency units comprises one or more time frequency units, wherein the second subset of time frequency units comprises one or more time frequency units, and wherein the third subset of time frequency units comprises one or more time frequency units.
The method of claim 3, wherein the at least two sets of time frequency units further comprise a third set of time frequency units, wherein the first set of time frequency units further comprises a fourth subset of time frequency units, wherein the third set of time frequency units comprises a fifth subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the fifth subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the fourth subset of time frequency units, wherein the fourth subset of time frequency units comprises one or more time frequency units, and wherein the fifth subset of time frequency units comprises one or more time frequency units.
The method according to claim 3 or 4, wherein the time-frequency units in the second or third set of time-frequency units are non-cell-defined time-frequency units of the NCD-SSB type.
The method of claim 1, wherein SSBs transmitted by a subset of time-frequency units in the at least two sets of time-frequency units have a QCL relationship with SSBs transmitted by all but a first subset of time-frequency units in the first set of time-frequency units, wherein the time domain resources of the first subset of time-frequency units are the same as the time domain resources of a second subset of time-frequency units, and wherein the second subset of time-frequency units is any subset of the time-frequency units in which SSBs transmitted by the subset of time-frequency units in the first set of time-frequency units, but the SSBs transmitted by the first subset of time-frequency units, have a QCL relationship.
The method according to any of claims 2 to 6, wherein the time-frequency units in the first set of time-frequency units are time-frequency units of a cell-defined CD-SSB type.
The method according to any one of claims 1 to 7, further comprising:

receiving indication information, where the indication information is used to indicate a time frequency unit where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit in a second time frequency unit set have a QCL relationship is located, where the second time frequency unit set is another time frequency unit set except the first time frequency unit set in the at least two time frequency unit sets.
The method according to any one of claims 2 to 7, further comprising:

receiving indication information, where the indication information is used to indicate a time frequency unit subset where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit subset in a second time frequency unit set have a QCL relationship are located, where the second time frequency unit set is another time frequency unit set except the first time frequency unit set in the at least two time frequency unit sets.
The method of claim 9, wherein the indication information indicates a number of unit lengths of cyclic shift of a subset of time-frequency units in the first set of time-frequency units relative to the second subset of time-frequency units.
The method of claim 9, wherein the indication information indicates an order of a subset of time frequency units in the second set of time frequency units and an order of a subset of time frequency units in the first set of time frequency units, wherein SSBs for transmission of subsets of time frequency units in the same order position have a QCL relationship.
The method according to any one of claims 8 to 11, wherein the receiving indication information comprises:

and receiving system information, wherein the system information comprises the indication information.
A method of transmitting a synchronization signal block SSB, comprising:

sending configuration information, wherein the configuration information is used for indicating at least two time frequency unit sets, the time frequency units in each of the at least two time frequency unit sets correspond to the same frequency domain resource, and different time frequency unit sets correspond to different frequency domain resources, wherein different time frequency units of the same time domain resource in the at least two time frequency unit sets are used for transmitting different SSBs;

and sending SSB on at least two time frequency units of the same time domain resource in the at least two time frequency unit sets.
The method of claim 13, wherein SSBs transmitted by a second subset of time frequency units in the other sets of time frequency units of the at least two sets of time frequency units except the first set of time frequency units have quasi-co-located QCL relationship with SSBs transmitted by the first subset of time frequency units, wherein the first subset of time frequency units are time frequency units in the first set of time frequency units, and wherein the time domain resources of the first subset of time frequency units and the second subset of time frequency units are different.
The method of claim 13, wherein the at least two sets of time frequency units comprise a first set of time frequency units and a second set of time frequency units, wherein the first set of time frequency units comprises a first subset of time frequency units and a second subset of time frequency units, wherein the second set of time frequency units comprises a third subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the second subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the third subset of time frequency units, wherein the first subset of time frequency units comprises one or more time frequency units, wherein the second subset of time frequency units comprises one or more time frequency units, and wherein the third subset of time frequency units comprises one or more time frequency units.
The method of claim 15, wherein the at least two sets of time frequency units further comprise a third set of time frequency units, wherein the first set of time frequency units further comprises a fourth subset of time frequency units, wherein the third set of time frequency units comprises a fifth subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the fifth subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the fourth subset of time frequency units, wherein the fourth subset of time frequency units comprises one or more time frequency units, and wherein the fifth subset of time frequency units comprises one or more time frequency units.
The method according to claim 15 or 16, wherein the time-frequency units in the second or third set of time-frequency units are non-cell defined NCD-SSB type time-frequency units.
The method of claim 13, wherein SSBs transmitted by a subset of time-frequency units in the at least two sets of time-frequency units have a QCL relationship with SSBs transmitted by all but the first subset of time-frequency units in the first set of time-frequency units, wherein the time domain resources of a second subset of time-frequency units are the same as the time domain resources of the first time-frequency units, and wherein the second subset of time-frequency units is any subset of time-frequency units in which SSBs transmitted by a subset of time-frequency units in the first set of time-frequency units, but the first subset of time-frequency units, have a QCL relationship with each other.
The method according to any of claims 13-18, wherein the time-frequency units in the first set of time-frequency units are time-frequency units of a cell-defined CD-SSB type.
The method according to any one of claims 13 to 19, further comprising:

and sending indication information, where the indication information is used to indicate a time frequency unit where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit in a second time frequency unit set have a QCL relationship, and the second time frequency unit set is another time frequency unit set except the first time frequency unit set in the at least two time frequency unit sets.
The method according to any one of claims 14 to 19, further comprising:

and sending indication information, where the indication information is used to indicate a time frequency unit subset where an SSB in the first time frequency unit set and an SSB transmitted by a second time frequency unit subset in a second time frequency unit set have a QCL relationship are located, and the second time frequency unit set is another time frequency unit set except the first time frequency unit set in the at least two time frequency unit sets.
The method of claim 21, wherein the indication information indicates a number of unit lengths of cyclic shift of a subset of time-frequency units in the first set of time-frequency units relative to the second subset of time-frequency units.
The method of claim 21, wherein the indication information indicates an order of a subset of time frequency units in the second set of time frequency units and an order of a subset of time frequency units in the first set of time frequency units, wherein SSBs used for transmission by subsets of time frequency units in the same order position have a QCL relationship.
The method according to any of claims 20 to 23, wherein said sending indication information comprises:

and sending system information, wherein the system information comprises the indication information.
An apparatus for transmitting a Synchronization Signal Block (SSB), comprising:

a transceiver module, configured to receive configuration information, where the configuration information is used to indicate at least two sets of time-frequency units, where the time-frequency units in each set of the at least two sets of time-frequency units correspond to the same frequency domain resource, and different sets of time-frequency units correspond to different frequency domain resources, where different time-frequency units of the same time domain resource in the at least two sets of time-frequency units are used to transmit different SSBs;

and the processing module is used for receiving the SSB through the transceiver module according to the configuration information.
The apparatus of claim 25 wherein SSBs transmitted by a second subset of time frequency units in sets of time frequency units other than a first set of time frequency units in the at least two sets of time frequency units have a quasi-co-located QCL relationship with SSBs transmitted by a first subset of time frequency units, wherein the first subset of time frequency units are time frequency units in the first set of time frequency units, and wherein the time domain resources of the first subset of time frequency units and the second subset of time frequency units are different.
The apparatus of claim 25, wherein the at least two sets of time frequency units comprise a first set of time frequency units and a second set of time frequency units, wherein the first set of time frequency units comprises a first subset of time frequency units and a second subset of time frequency units, wherein the second set of time frequency units comprises a third subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the second subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the third subset of time frequency units, wherein the first subset of time frequency units comprises one or more time frequency units, wherein the second subset of time frequency units comprises one or more time frequency units, and wherein the third subset of time frequency units comprises one or more time frequency units.
The apparatus of claim 27, wherein the at least two sets of time frequency units further comprise a third set of time frequency units, wherein the first set of time frequency units further comprises a fourth subset of time frequency units, wherein the third set of time frequency units comprises a fifth subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the fifth subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the fourth subset of time frequency units, wherein the fourth subset of time frequency units comprises one or more time frequency units, and wherein the fifth subset of time frequency units comprises one or more time frequency units.
The apparatus according to claim 27 or 28, wherein the time-frequency units in the second or third set of time-frequency units are non-cell defined, NCD-SSB, type time-frequency units.
The apparatus of claim 25, wherein SSBs transmitted by a subset of time frequency units in the at least two sets of time frequency units have a QCL relationship with SSBs transmitted by all but a first subset of time frequency units in the first set of time frequency units, wherein the time domain resources of the first subset of time frequency units are the same as the time domain resources of a second subset of time frequency units, and wherein the second subset of time frequency units is any subset of time frequency units in which SSBs transmitted by the subset of time frequency units in the first set of time frequency units, but the SSBs transmitted by the first subset of time frequency units, have a QCL relationship.
The apparatus according to any of claims 26-30, wherein the time-frequency units in the first set of time-frequency units are time-frequency units of a cell-defined CD-SSB type.
The apparatus according to any of claims 25-31, wherein the transceiver module is further configured to receive indication information indicating the time-frequency unit in which the SSB in the first set of time-frequency units that has the QCL relationship with the SSB transmitted by the second time-frequency unit in the second set of time-frequency units is located, and the second set of time-frequency units is the other set of time-frequency units in the at least two sets of time-frequency units except the first set of time-frequency units.
The apparatus according to any of claims 26-31, wherein the transceiver module is further configured to receive indication information indicating a subset of time-frequency units in which SSBs in QCL relationship with SSBs transmitted by a second subset of time-frequency units in a second set of time-frequency units are located, the second set of time-frequency units being other than the first set of time-frequency units in the at least two sets of time-frequency units.
The apparatus of claim 33, wherein the indication information indicates a number of unit lengths of cyclic shift of a subset of time-frequency units in the first set of time-frequency units relative to the second subset of time-frequency units.
The apparatus of claim 33, wherein the indication information indicates an order of a subset of time frequency units in the second set of time frequency units and an order of a subset of time frequency units in the first set of time frequency units, wherein SSBs for transmission for subsets of time frequency units in a same order position have a QCL relationship.
The apparatus according to any of claims 32 to 35, wherein the transceiver module is specifically configured to:

and receiving system information, wherein the system information comprises the indication information.
An apparatus for transmitting a Synchronization Signal Block (SSB), comprising:

a transceiver module, configured to send configuration information, where the configuration information is used to indicate at least two sets of time-frequency units, where the time-frequency units in each set of the at least two sets of time-frequency units correspond to the same frequency domain resource, and different sets of time-frequency units correspond to different frequency domain resources, where different time-frequency units of the same time domain resource in the at least two sets of time-frequency units are used to transmit different SSBs;

the transceiver module is further configured to send an SSB on at least two time-frequency units of the same time-domain resource in the at least two time-frequency unit sets.
The apparatus of claim 37, wherein SSBs transmitted by a second subset of time frequency units in sets of time frequency units other than the first set of time frequency units in the at least two sets of time frequency units have a quasi-co-located QCL relationship with SSBs transmitted by the first subset of time frequency units, wherein the first subset of time frequency units are time frequency units in the first set of time frequency units, and wherein time domain resources of the first subset of time frequency units and the second subset of time frequency units are different.
The apparatus of claim 37, wherein the at least two sets of time frequency units comprise a first set of time frequency units and a second set of time frequency units, wherein the first set of time frequency units comprises a first subset of time frequency units and a second subset of time frequency units, wherein the second set of time frequency units comprises a third subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the second subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the third subset of time frequency units, wherein the first subset of time frequency units comprises one or more time frequency units, wherein the second subset of time frequency units comprises one or more time frequency units, and wherein the third subset of time frequency units comprises one or more time frequency units.
The apparatus of claim 39, wherein the at least two sets of time frequency units further comprise a third set of time frequency units, wherein the first set of time frequency units further comprises a fourth subset of time frequency units, wherein the third set of time frequency units comprises a fifth subset of time frequency units, wherein SSBs transmitted by each time frequency unit in the fifth subset of time frequency units have a QCL relationship with SSBs transmitted by each time frequency unit in the fourth subset of time frequency units, wherein the fourth subset of time frequency units comprises one or more time frequency units, and wherein the fifth subset of time frequency units comprises one or more time frequency units.
The apparatus according to claim 39 or 40, wherein the time-frequency units in the second set of time-frequency units or the third set of time-frequency units are non-cell defined time-frequency units of the NCD-SSB type.
The apparatus of claim 37, wherein SSBs transmitted by a subset of time-frequency units in the at least two sets of time-frequency units have a QCL relationship with SSBs transmitted by all but the first subset of time-frequency units in the first set of time-frequency units, wherein the time domain resources of a second subset of time-frequency units are the same as the time domain resources of the first time-frequency units, and wherein the second subset of time-frequency units is any subset of time-frequency units in which SSBs transmitted by a subset of time-frequency units in the first set of time-frequency units, but the first subset of time-frequency units, have a QCL relationship with each other.
The apparatus according to any of claims 37-42, wherein the time-frequency units in the first set of time-frequency units are time-frequency units of a cell-defined CD-SSB type.
The apparatus according to any of claims 37-43, wherein the transceiver module is further configured to send indication information indicating the time-frequency unit in which the SSB in the first set of time-frequency units having QCL relationship with the SSB transmitted by the second time-frequency unit in the second set of time-frequency units is located, and the second set of time-frequency units is the other set of time-frequency units in the at least two sets of time-frequency units except the first set of time-frequency units.
The apparatus according to any of claims 38-43, wherein the transceiver module is further configured to send indication information indicating a subset of time frequency units in which SSBs having a QCL relationship with SSBs transmitted by a second subset of time frequency units in a second set of time frequency units are located, the second set of time frequency units being other than the first set of time frequency units in the at least two sets of time frequency units.
The apparatus of claim 45, wherein the indication information indicates a number of unit lengths of cyclic shifts of a subset of time-frequency units of the first set of time-frequency units relative to the second subset of time-frequency units.
The apparatus of claim 45, wherein the indication information indicates an order of a subset of time frequency units in the second set of time frequency units and an order of a subset of time frequency units in the first set of time frequency units, wherein SSBs for transmission of subsets of time frequency units in the same order position have a QCL relationship.
The apparatus according to any one of claims 44 to 47, wherein the transceiver module is specifically configured to:

and sending system information, wherein the system information comprises the indication information.
A computer-readable storage medium, comprising a computer program or instructions which, when run on a computer, cause the computer to perform the method of any of claims 1-12 or the method of any of claims 13-23.
A computer program product, comprising a computer program or instructions for causing a computer to perform the method of any of claims 1-12 or the method of any of claims 13-23 when the computer program or instructions is run on a computer.