RU2781518C1 - Method for wireless communication, terminal and network apparatus - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: wireless communication method involves the following: the terminal receiving the first synchronisation signal block (SSB) in the unlicensed spectrum; wherein the physical broadcast channel (PBCH) of the first SSB comprises a first bit field, a second bit field, and a set of idle bits containing one or more than one idle bit. The first parameter N is determined based on the first bit field and one of the following: the second bit field or the set of idle bits, wherein the value of N is a positive integer and the first parameter N is used to determine the quasi co-location (QCL). The QCL ratio between the first SSB and the other SSBs is determined based on the extended SSB index of the first SSB and the value of N.

EFFECT: determined ratio of the quasi co-location QCL of synchronisation signal blocks (SSB), reducing the consumption of resources in the unlicensed spectrum.

28 cl, 14 dwg

Description

The field of technology to which the present invention relates

Embodiments of the present invention relate to the field of communication, in particular, to a wireless communication method, a terminal, and a network device.

Background of the Invention

In the fifth generation New Radio (5G NR) system, an SSB (Sync Signal Block) index may be transmitted periodically. During one SSB period, the SSB transmission position is deterministic, and the terminal may determine the SSB transmission position based on the received SSB index.

In the unlicensed spectrum, the communication device follows the LBT (Listen Before Talking) principle, i.e. before transmitting signals over an unlicensed spectrum channel, the communication device must first perform channel sounding; and the communication device can transmit a signal only after the results of the channel sounding indicate that the channel is free. If the results of the channel sounding carried out by the communication device in relation to the channel of the unlicensed spectrum indicate that this channel is busy, then the communication device will not be able to transmit signals.

When the 5G NR system is applied to unlicensed spectrum, the network device must successfully complete the LBT and acquire the right to use the channel before transmitting SSB blocks. In other words, in the unlicensed frequency band, the actual starting position of the SSB transmission is undefined. After receiving the SSBs, the terminal cannot know the QCL (quasi-collocation) relationship between the SSBs, and therefore it cannot apply combining and filtering to the SSBs, which affects system performance. Therefore, determining the QCL relationship between SSBs is a task worth studying.

Brief summary of the present invention

Embodiments of the present invention provide a wireless communication method, a terminal, and a network device capable of determining a QCL with respect to SSBs.

According to a first aspect of the present invention, there is provided a wireless communication method, comprising: receiving, by a terminal, a first SSB (sync signal block) in an unlicensed spectrum; determining an extended SSB index of the first SSB and/or the first parameter N based on the first bit field and/or the second bit field in the PBCH (Physical Broadcast Channel) of the first SSB to determine the QCL (quasi-collocation) relationship, wherein the value N is a positive integer, the bit position of the first bit field in the PBCH channel coincides with the bit position in the subcarrier spacing bit field in the PBCH channel in the licensed spectrum, and the bit position of the second bit field in the PBCH channel partially or completely matches the bit position in the subcarrier offset bit field in the Strategic Missile Forces channel in the licensed spectrum; and determining a QCL relationship for the first SSB and other SSBs based on the extended SSB index of the first SSB and the value of N.

According to a second aspect of the present invention, there is provided a wireless communication method, comprising: a network device transmitting a first SSB (Sync Signal Block) to a terminal in an unlicensed spectrum, wherein based on a first bit field and/or a second bit field in a PBCH (Physical Broadcast Channel) of the first SSB block, the extended SSB index of the first SSB block and/or the first parameter N is determined to define a QCL (quasi-collocation) relationship, where the value of N is a positive integer, the bit position of the first bit field in the PBCH is the same as the bit position in the bit the subcarrier spacing field in the RVSN channel in the licensed spectrum, and the bit position of the second bit field in the RVSN partially or completely matches the bit position in the subcarrier offset bit field in the RVSN channel in the licensed spectrum, and the extended SSB index of the first SSB block and the value N are used for terminal definitions of a relationship i QCL for the first SSB block and other SSB blocks, with N being a positive integer.

According to a third aspect of the present invention, a wireless communication method is provided, comprising:

determining, by the terminal, a first parameter N to determine a QCL (quasi-collocation) relation based on the DMRS (demodulation reference signal) sequence of the PBCH (Physical Broadcast Channel) in the received first SSB (sync signal block) in combination with the second correspondence relation, the second the correspondence relation is a correspondence relation between the plurality of DMRS sequences and the plurality of first parameter values.

In some possible embodiments of the present invention, the second mapping relationship is a mapping relationship between a plurality of DMRS sequences and a plurality of combinations of the first parameter and a portion of bits in the extended SSB index.

In some possible embodiments of the present invention, the value N indicates the number of SSBs actually transmitted by the network device.

According to a fourth aspect of the present invention, there is provided a wireless communication method comprising:

transmission by the network device of a second mapping relationship to the terminal, the second mapping relationship being used to determine the first parameter N by the terminal to determine the QCL (quasi-collocation) relationship, the second mapping relationship being the mapping relationship between the plurality of DMRS sequences and the plurality of values of the first parameter.

In some possible embodiments of the present invention, the second mapping relationship is a mapping relationship between a plurality of DMRS sequences and a plurality of combinations of the first parameter and a portion of bits in the extended SSB index.

In some possible embodiments of the present invention, the value N indicates the number of SSBs actually transmitted by the network device.

According to a fifth aspect of the present invention, there is provided a terminal that is used to implement the method according to the first aspect of the present invention, or any of the possible embodiments of the first aspect, or to implement the method according to the third aspect of the present invention, or any of the possible embodiments of the third aspect. In particular, the terminal includes modules for implementing the method according to the first aspect of the present invention or any of the possible embodiments of the first aspect, or includes modules for implementing the method according to the third aspect of the present invention or any of the possible embodiments of the third aspect.

According to a sixth aspect of the present invention, there is provided a terminal that is used to implement the method according to the second aspect of the present invention, or any of the possible embodiments of the second aspect, or to implement the method according to the fourth aspect of the present invention, or any of the possible embodiments of the fourth aspect. In particular, the network device includes modules for implementing the method according to the second aspect of the present invention or any of the possible embodiments of the second aspect, or includes modules for implementing the method according to the fourth aspect of the present invention or any of the possible embodiments of the fourth aspect.

According to a seventh aspect of the present invention, there is provided a terminal including a processor and a memory. The memory is used to store a computer program, and the processor is used to recall and run the computer program in order to implement the method according to the first aspect of the present invention or each of the embodiments of the first aspect, or to implement the method according to the third aspect of the present invention or each of the embodiments. implementation of the third aspect.

According to an eighth aspect of the present invention, there is provided a network device including a processor and a memory. The memory is used to store a computer program, and the processor is used to recall and run the computer program in order to implement the method according to the second aspect of the present invention or each of the embodiments of the second aspect, or to implement the method according to the fourth aspect of the present invention or each of the embodiments. implementation of the fourth aspect.

According to a ninth aspect of the present invention, there is provided a chip for implementing the method according to any one of the first to fourth aspects of the present invention, or each of their embodiments.

Specifically, the chip includes a processor for recalling and running a computer program so as to enable a device in which the chip is installed to implement said method according to any one of the first through fourth aspects of the present invention, or each of their embodiments.

According to a tenth aspect of the present invention, there is provided a computer-readable storage medium for storing a computer program that initiates a computer to implement said method according to any of the first to fourth aspects of the present invention or each of their embodiments.

According to an eleventh aspect of the present invention, there is provided a computer program product comprising computer program instructions that cause a computer to implement said method according to any one of the first to fourth aspects of the present invention, or each of their embodiments.

According to a twelfth aspect of the present invention, there is provided a computer program which, when run on a computer, causes the computer to implement said method according to any of the first to fourth aspects of the present invention or each of their embodiments.

According to the technical solutions mentioned above, after receiving the SSB, the terminal may determine the extended SSB index of the first SSB and/or the first parameter N based on the first bit field and/or the second bit field in the PBCH (Physical Broadcast Channel) of the first SSB to determining a QCL (quasi-collocation) relationship, and further determining a QCL relationship for the first SSB and other SSBs based on the extended SSB index of the first SSB and the N value.

Brief description of the figures

Figure 1 schematically shows an application scenario according to one embodiment of the present invention.

Figure 2 schematically illustrates the transmission of an SSB block in the unlicensed spectrum.

Figure 3 schematically shows an SSB candidate position and a QCL relationship.

FIG. 4 schematically illustrates SSB transmission based on candidate position and QCL relationship as shown in FIG.

FIG. 5 is a flowchart illustrating an implementation flow of a wireless communication method according to one embodiment of the present invention.

Fig. 6 schematically shows the extended SSB index and N value display mode.

Fig. 7 schematically shows another display mode of extended SSB index and N value.

Fig. 8 schematically shows another extended SSB index and N value display mode.

Fig. 9 is a flowchart illustrating an implementation flow of another wireless communication method according to one embodiment of the present invention.

Figure 10 shows a block diagram of a terminal according to one embodiment of the present invention.

Figure 11 shows a block diagram of a network device according to one embodiment of the present invention.

12 is a block diagram of a communication device according to another embodiment of the present invention.

Figure 13 shows a block diagram of a chip according to one of the embodiments of the present invention.

14 is a block diagram of a communication system according to one embodiment of the present invention.

Detailed disclosure of the present invention

The following describes the technical solution implemented in the embodiments of the present invention, which are disclosed in connection with the accompanying drawings. Obviously, the described embodiments represent only some, and not all, embodiments of the claimed invention. All other embodiments that can be obtained by a person skilled in the art based on the embodiments of the present invention without applying any creative effort, should be included in the scope of legal protection of the claimed invention.

The technical solutions implemented in the embodiments of the present invention are applicable to various communication systems such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Packet General Use Radio Communications (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Advanced LTE (LTE- A), New Radio (NR) system, NR advanced system, LTE Unlicensed Spectrum Access System (LTE-U), NR Unlicensed Spectrum Access System (NR-U), Universal Mobile Telecommunications System (UMTS) ), Global Interoperability Communication System for Microwave Access (WiMAX), Wireless Local Area Network (WLAN), Wi-Fi (Wireless Reliability) m), a next generation communication system, or other similar communication system.

Typically, the number of connections supported by a conventional communication system is limited, and the establishment of these connections is easy to implement. However, with the development of communication technology, the mobile communication system will support not only traditional communication, but also communication such as device-to-device communication (D2D), machine-to-machine communication (M2M), machine-type communication (MTC), communication between mobile objects (V2V) and other forms of communication, and embodiments of the present invention are also applicable to these communication systems.

For example, the system 100 applicable in one of the embodiments of the present invention has the form shown in Fig.1. Communication system 100 may include a network device 110, which may be a device that communicates with terminal 120 (which may also be referred to as a communication terminal or tag). Network device 110 may provide radio coverage of a particular geographic area and communicate with a terminal located within the specified coverage area. Optionally, network device 110 can be a base transceiver station (BTS) in a GSM or CDMA system, a NodeB (NB) in a WCDMA system, an evolved NodeB (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN) ; or the network device can be a network-side device in a mobile switching center, relay station, access point, vehicle-mounted device, wearable device, hub, switch, network bridge, router, or device in a 5G network; or it may be a network device in the advanced PLMN (Public Land Mobile Network), etc.

The communication system 100 also includes at least one terminal 120 located within the coverage area of the network device 110. As used herein, the term "terminal" means, among other things, a device capable of receiving/transmitting communication signals over a wired a circuit connection, such as via the public switched telephone network (PSTN), digital subscriber line (DSL), digital cable, direct cable connection and/or other data connection/data network; and/or via a wireless interface such as a cellular network, a wireless local area network (WLAN), a digital television network (such as a DVB-H (European Digital Broadcast Standard) network), a satellite network, and an AM-FM broadcast transmitter; and/or other terminal device; and/or device of the IoT system (“Internet of things”). A terminal capable of communicating via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of a mobile terminal include, but are not limited to, a satellite or cell phone; a personal communications system (PCS) terminal configured to combine a cellular radiotelephone with data processing, faxing, and communication capabilities; a personal digital assistant (PDA) configured to combine the functions of a radiotelephone, pager, Internet/Intranet access device, web browser, address book, calendar, and/or a GPS (global positioning system) receiver; and a receiver for a conventional laptop and/or palmtop or other electronic device containing a radiotelephone transceiver. A terminal may refer to an access terminal, a user equipment (UE), a subscriber station, a subscriber station, a mobile station, a mobile console, a remote station, a remote terminal, a mobile device, a user terminal, a terminal device, a wireless communication device, a user agent, or a user device. The access terminal may be a cell phone; wireless phone; SIP phone (phone using the session establishment protocol); wireless subscriber access station (WLL); pocket personal computer (PDA); handheld device with wireless functionality; a computing device or any other data processing device connected to the wireless modem; device installed on the vehicle; wearable device; end device in 5G network, end device in advanced advanced PLMN (Public Land Mobile Network); or other similar device.

Optionally, D2D (Device to Device) communication can be supported between terminals 120.

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

Figure 1 shows an example with one network device and two terminals. Optionally, communication system 100 may include a plurality of network devices, and a different number of terminals may reside within the coverage area of each network device. Embodiments of the present invention are not limited to the presented solution.

Optionally, communication system 100 may further include other network entities such as a network controller and a mobility management node, but embodiments of the present invention are not limited to this solution.

It should be understood that a communication device in embodiments of the present invention may refer to a device having a communication function in a system/network. Taking the communication system 100 shown in FIG. 1 as an example, the communication devices may include a network device 110 and a terminal 120 having a communication function, where the network device 110 and the terminal 120 may be the specific devices described above, and the description which are not repeated below. Communication devices may also include other devices within communication system 100, such as other network entities such as a network controller and a mobility management node, and embodiments of the present invention are not limited to this solution.

It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and/or" in the context of this document denotes only an associative relationship describing related objects, indicating that there are three possible relationship options; for example, the phrase "A and/or B" could indicate three possible situations: only A; A and B; and only B. In addition, the symbol "/" in the context of this document, in general, indicates that the related objects located before and after the symbol "/" are in an "or" relationship.

In an NR system, an SSB may be transmitted within a certain time interval (eg, within a time window of 5 ms), and it may be retransmitted in a certain time period. Optionally, the time interval may be, for example, 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, etc. During one time interval, the maximum number of SSBs that can be transmitted by a network device is L, and the number of SSBs actually transmitted may be less than L.

The SSB index for the terminal may be obtained via the received SSB. The SSB index corresponds to the relative position of the SSB block within the time window. Based on the SSB index and half-frame indicator carried on the physical broadcast channel (PBCH), the terminal determines the position of the SSB in the radio frame, thereby obtaining frame synchronization.

With regard to the QCL relation, the terminal may assume that SSBs with the same index are characterized by the presence of the QCL relation; in other words, if the SSBs received by the terminal at different times have the same index, then they are considered to be in the QCL relationship.

The NR-U system stipulates that since channel resources in the unlicensed spectrum are shared, when using these shared resources, the communication device needs to perform an idle channel sounding before using it. In this case, it is difficult to ensure periodic transmission and reception of the SSB block at a fixed position. Since the time position of a successful LBT execution by the transmitter is unpredictable, an unsatisfactory LBT result will most likely result in an unsuccessful attempt to transmit and receive an SSB block.

Therefore, a plurality of SSB block candidate positions are provided in the NR-U system so that after a successful LBT attempt, there are still enough SSB block candidate positions that can be used to transmit an SSB block; and, accordingly, the influence of the failed LBT attempt on the reception of the SSB block is thereby prevented. In particular, during one time interval, Y SSB candidate positions can be configured, and at Y SSB transmission candidate positions, a maximum of L SSBs can be transmitted, where the value of L is less than the value of Y, and SSBs can only be transmitted after the transmitter receives an available channel.

In one example where the time interval is 5 ms, the L value is 4, and the Y value is 20, as shown in FIG. it will start transmitting SSBs with an SSB index between 0-3 at candidate position 12. Thus, in an NR-U system, the actual SSB start position may be at any one of Y candidate positions. Therefore, if the terminal needs to obtain framing over the SSB block received at the candidate position, in one embodiment of the present invention, the extended SSB index may be set to point to candidate Y positions. In this case, the index carried by the block SSB is extended to 0 - Y-1 so that the terminal can determine the actual SSB transmission position within the time window based on the extended SSB index carried by the received SSB, thereby obtaining frame synchronization.

In other words, the extended SSB index carried by the SSB may refer to the SSB position index within the time window, which may also be referred to as the SSB position index; or the extended SSB index carried by the SSB is used to indicate the position index of the actual transmission of the SSB from candidate positions Y.

In order for the terminal to be able to determine the QCL relationship between SSBs, in one embodiment of the present invention, it can be assumed that SSBs with the same results on an extended modulo L SSB index among SSBs within the same time window are in a relationship QCL. With this assumption in mind, it can be said that SSBs in the same bundle can only be transmitted at specific candidate positions. As shown in FIG. 3, where L=8 and Y=32 are assumed for example, SSBs with the same results on extended SSB index modulo 8 are in relation to QCL, with extended SSB index being 0-31 . In this case, it can be determined that there are SSB blocks with an extended SSB index of 0, 8, 16 and 24 in relation to the QCL.

However, the solution presented above gives rise to a problem in that a relationship occurs between the QCL attribute of the SSBs actually transmitted by the network device and the candidate positions. In other words, SSBs that satisfy the QCL relation can only be transmitted at a few fixed positions, and not at any of the candidate positions. Since the use of signals in the unlicensed spectrum is based on the LBT mechanism, this limitation will inevitably lead to a decrease in the efficiency of the use of channels.

As can be seen in FIG. 4, where L=8 and Y=20 are taken as an example, if the number of SSBs actually transmitted by the network device is 4, then the SSB indices of the four SSBs are 4, 5, 6, and 7 Based on this assumption, SSBs with an SSB index of 4 can only be transmitted in candidate positions 4 and 12. If the network device has successfully performed LBT before reaching candidate position 8, then the network device needs to wait until position Candidate 12 will not start transmitting the four SSBs with SSB indices 4, 5, 6, and 7. As a result, channels in candidate positions 8-11 cannot be used, resulting in a waste of resources. In addition, the NR-U system provides that if the frequency-time resources between candidate positions 8-11 are not occupied, then other devices can successfully perform LBT on the frequency-time resources and occupy channels, which affects the transmission of the SSB block after the position -candidate 12.

In this regard, one embodiment of the present invention proposes a new determination method that can be used to establish the QCL for SSB blocks, and which contributes to reducing the wastage of resources in the unlicensed spectrum.

FIG. 5 is a flowchart illustrating an implementation flow of a wireless communication method according to one embodiment of the present invention. Method 200 may be implemented by a terminal in a communication system, as shown in FIG. As shown in FIG. 5, method 200 includes at least performing steps S210-S230 described below.

In step S210, the terminal receives the first synchronization signal block (SSB) in the unlicensed spectrum.

Step S220 determines the extended SSB index of the first SSB and/or the first parameter N to determine the QCL (quasi-collocation) relationship based on the first bit field and/or the second bit field in the PBCH (Physical Broadcast Channel) of the first SSB, wherein the value N is a positive integer, the position of the bits of the first bit field in the PBCH channel coincides with the position of the bits in the subcarrier spacing bit field in the PBCH channel in the licensed spectrum, and the bit position of the second bit field in the PBCH channel partially or completely coincides with the position of the bits in the bit field subcarrier shifts in the Strategic Missile Forces channel in the licensed spectrum.

In step S230, the QCL ratio of the first SSB and other SSBs is set based on the extended SSB index of the first SSB and the value of N.

In one embodiment of the present invention, in order for the terminal to determine the QCL relationship between SSBs, the terminal may obtain the first parameter N and determine the QCL relationship of the first SSB and other SSBs based on the extended SSB index of the received first SSB and the value of N. In some embodiments of the present of the invention, it can be assumed that SSBs with the same results in relation to the extended SSB index modulo N are among themselves in relation to QCL. In addition, the terminal can filter the SSBs that are in the QCL relationship based on the beam intensity measurements, which improves system performance.

In one embodiment of the present invention, it is optionally contemplated that the extended SSB index may mean an SSB block position index within a time window for SSB transmission, which may also be referred to as an SSB block position index; or the extended SSB index carried by the SSB is used to indicate the position index of the actual transmission of the SSB from candidate positions Y.

In one embodiment of the present invention, it is optionally provided that the value N may indicate the number of SSBs actually transmitted by the network device, or other parameters for determining the QCL ratio of SSBs, which is not restrictive in this embodiment of the present invention.

In one embodiment of the present invention, it is optionally provided that the first SSB block includes at least one of the following signals:

Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Physical Broadcast Channel (PBCH).

In one embodiment of the present invention, it is optionally provided that the terminal may determine at least one of the extended SSB indices and the value of N based on at least one of the first bit field and the second bit field in the PBCH of the received first block SSB, wherein the first bit field in the PBCH channel may correspond to the subcarrier spacing bit field in the PBCH channel in the licensed spectrum, and the second bit field in the PBCH channel may fully or partially correspond to bit positions in the subcarrier offset bit field in the PBCH channel in the licensed spectrum.

To facilitate understanding and interpretation, a brief description of the information carried in the Strategic Missile Forces channel in the licensed spectrum is presented.

The information carried by the RVSN channel in the unlicensed spectrum includes A-bit information from the upper layer and information related to the physical layer (layer 1), and the information related to layer 1 includes the current frame number (SFN), indicator half frame, SSB index, etc.

, и 8-битную информацию с уровня 1, т.е.

. А-битный блок MIB содержит шесть битов SFN, один бит информации subCarrierSpacingCommon, четыре бита информации ssb-SubcarrierOffset, релевантную информацию опорного сигнала демодуляции (DMRS), информацию о ресурсах физического нисходящего канала управления (PDCCH) для планирования блока системной информации (SIB) и пр.; и в него также включен один холостой бит.In particular, the information carried by the PBCH includes an overhead information block (MIB) containing a total of A bits, i. e.

, and 8-bit information from level 1, i.e.

. The A-bit MIB contains six SFN bits, one bit of subCarrierSpacingCommon information, four bits of ssb-SubcarrierOffset information, demodulation reference signal (DMRS) relevant information, physical downlink control channel (PDCCH) resource information for scheduling a system information block (SIB), and etc.; and it also includes one idle bit.

между сетками блоков физических ресурсов (PRB), т.е. между каналами или сигналами с SSB и без SSB. Смещение

включает в себя 0-11 поднесущих или 0-23 поднесущих, а битовое поле ssb-SubcarrierOffset может соответствовать четырем младшим битам параметра

. Поле SubCarrierSpacingCommon используется для индикации разнесения поднесущих SIB1, сообщения 2/сообщения 4 (Msg.2/4) для первоначального доступа, системных информационных (SI) сообщений поискового вызова и широковещательных сообщений.The ssb-SubcarrierOffset bitfield contains four bits that are used to indicate the offset.

between grids of physical resource blocks (PRBs), i.e. between channels or signals with and without SSB. Bias

includes 0-11 subcarriers or 0-23 subcarriers, and the ssb-SubcarrierOffset bitfield can correspond to the four least significant bits of the parameter

. The SubCarrierSpacingCommon field is used to indicate SIB1 subcarrier spacing, message 2/message 4 (Msg.2/4) for initial access, system information (SI) paging and broadcast messages.

, биты

представляют собой четыре младших бита SFN; а

представляет собой индикатор полукадра. Когда

биты

представляют собой три старших бита индекса SSB, в противном случае бит

представляет собой старший бит параметра

; а биты

представляют собой зарезервированные биты или холостые биты. Величина

отображает максимальное количество блоков SSB, и в контексте настоящего документа величина

соответствует указанной выше величине L, а величина

отображает информацию о смещении поднесущих в блоках SSB. Когда полоса частот системы составляет менее 6 ГГц, т.е.

меньше 64, информация, относящаяся к уровню 1, содержит два холостых бита.In 8-bit level 1 information, i.e.

, bits

are the four least significant bits of the SFN; a

is a half-frame indicator. When

bits

are the three most significant bits of the SSB index, otherwise the bit

represents the most significant bit of the parameter

; and bits

are reserved bits or idle bits. Value

displays the maximum number of SSB blocks, and in the context of this document, the value

corresponds to the above value L, and the value

displays subcarrier offset information in SSB blocks. When the system bandwidth is less than 6 GHz, i.e.

less than 64, the information related to layer 1 contains two idle bits.

In one embodiment of the present invention, the PBCH channel of an SSB received in unlicensed spectrum may include a first bit field and a second bit field. The first bit field may correspond to the SubCarrierSpacingCommon bit field in the PBCH channel in the licensed spectrum, and the second bit field in the PBCH channel may correspond in whole or in part to the ssb-SubcarrierOffset bit field in the PBCH channel in the licensed spectrum.

For example, the first bit field may correspond to one bit of the SubCarrierSpacingCommon field, and the second bit field may partially or completely correspond to four or five bits of the ssb-SubcairierOffset field.

It should be understood that the above number of bits occupied by each bit field in the PBCH channel in the licensed spectrum is for example only, and the number of bits occupied by each bit field may alternatively be adjusted in accordance with the requirements of practical implementation, protocol prescriptions, etc. .p., which is not limiting in the embodiments of the present invention.

In an unlicensed spectrum communication system such as an NR-U system, the SSB subcarrier spacing is generally the same as the PDCCH subcarrier spacing for SIB1 scheduling. Thus, in an NR-U system, the indication of SIB1, Msg.2/4 subcarrier spacing for initial access, paging messages and broadcast messages via the SubCarrierSpacingCommon field may not be required, and they may by default be considered corresponding to SSB subcarrier spacing. Therefore, the first bit field in the RVSN channel in the unlicensed spectrum, corresponding to the SubCarrierSpacingCommon field, can be used to indicate at least part of the extended SSB index and N value information.

In an unlicensed spectrum communication system such as an NR-U system, the PRB grids between SSB and non-SSB channels or signals are co-located or have a limited offset from each other. In this case

, может быть уменьшено, после чего избыточные биты могут быть использованы для индикации, по меньшей мере, части информации о расширенном индексе SSB или величине N. В частности, в системе NR лицензированные частотные диапазоны могут быть выделены для разных операторов, PRB-сетки SSB определяются заранее, и операторы могут гибко задавать PRB-сетки без SSB при использовании выделенных лицензированных частотных диапазонов, не ограничиваясь предварительно заданными PRB-сетками SSB, что обеспечивает более гибкое и эффективное использование ресурсов спектра. Однако в системе NR-U, поскольку она является нелицензированным спектром, выделение спектра частот не предусмотрено. В этом случае может быть предусмотрено совмещение PRB-сеток между каналами или сигналами с SSB и без SSB, или же их смещение относительно друг друга может характеризоваться ограниченными значениями. Таким образом, количество битов, занятых битовым полем

, может быть сокращено, и далее часть битов или все биты в битовом поле ssb-SubcarrierOfFset могут быть использованы для индикации, по меньшей мере, части информации о расширенном индексе SSB и величине N.the number of bits contained in the bit field to indicate

, may be reduced, after which the redundant bits may be used to indicate at least part of the extended SSB index or N value information. In particular, in an NR system, licensed frequency bands may be allocated to different operators, SSB PRB grids are defined in advance, and operators can flexibly define non-SSB PRB grids when using dedicated licensed frequency bands, not limited to predefined SSB PRB grids, allowing for more flexible and efficient use of spectrum resources. However, in the NR-U system, since it is unlicensed spectrum, there is no allocation of spectrum. In this case, the PRB grids can be superimposed between SSB and non-SSB channels or signals, or their offset relative to each other can be characterized by limited values. Thus, the number of bits occupied by a bit field

, may be truncated, and then some or all of the bits in the ssb-SubcarrierOfFset bitfield may be used to indicate at least some of the extended SSB index and N value information.

Taking the ssb-SubcarrierOffset field as an example, the following is provided: if the PRB grids between SSB and non-SSB channels or signals are co-located, then all five bits of the ssb-SubcarrierOffset field may be used to indicate at least parts of information about the extended SSB index or N value; or, if the PRB grids between SSB and non-SSB channels or signals have limited offset, then 1-4 bits of the ssb-SubcarrierOffset field may be used to indicate at least some of the extended SSB index or N value information, and the remaining parts of the extended SSB index and the N value may be indicated by other information, such as idle bits or DMRS sequences.

It should be understood that the first bit field in the PBCH channel in the unlicensed spectrum may in some cases also be referred to as the SubCarrierSpacingCommon bit field, or it may be determined based on the content that the first bit field actually points to. For example, when the first bit field is used to indicate the value N, the first bit field may be referred to as the value N bit field; or when the first bit field is used to indicate a portion of the extended SSB index, the first bit field may be referred to as an extended SSB index bit field, which is non-limiting in embodiments of the present invention.

Similarly, the second bit field in the PBCH in the unlicensed spectrum may in some cases also be referred to as the ssb-SubcarrierOffset bit field, or it may be determined based on the content that the second bit field actually points to. For example, when a second bit field is used to indicate a value N, the second bit field may be referred to as a value N bit field; or when the second bit field is used to indicate at least a portion of the extended SSB index, the second bit field may be referred to as the extended SSB index bit field, which is non-limiting in embodiments of the present invention.

In one embodiment of the present invention, it is optionally provided that the extended SSB index may be carried by the first bit field and/or the second bit field in the PBCH.

For example, if the extended SSB index contains five bits of information, then in this case one bit out of five bits may be carried by the first bit field; at least a portion of the remaining four bits of the five bits may be carried by the second bit field; or two bits of the five bits may be carried by the second bit field, and the remaining bits of the five bits may be carried by other information such as idle bits or DMRS signaling.

In one embodiment of the present invention, it is optionally provided that the value N may be carried by the first bit field and/or the second bit field in the PBCH.

For example, the value N may be carried by the first bit field. Assuming that the length of the first bit field is one bit, then the value of the value N can be determined based on the value of the first bit field. For example, when the value of the first bit field is zero, it can be set that N=2; and when the value of the first bit field is equal to one, it can be set that N=4.

In another example, the value N may be carried by the second bit field. Assuming that the length of the second bit field is four bits, the value N can be carried based on two bits in the second bit field. For example, when the value of two bits is 00, it can be set that N=2; when the value of two bits is 01, it can be set that N=4; when the value of two bits is 10, it can be set that N=6; and when the value of two bits is 11, it can be set that N=8.

In yet another example, it is contemplated that if the value N occupies P bits, then P1 bits of the P bits may be carried by the first bit field, and other bits of the P bits are carried by the second bit field or dummy bits.

In one embodiment of the present invention, it is optionally provided that the terminal may alternatively determine the value of N based on the DMRS sequence of the PBCH. For example, the value of N may be determined based on the DMRS sequence of the PBCH and the second correspondence relation.

In one embodiment of the present invention, the second correspondence relation may be a correspondence relation between a plurality of DMRS sequences and a plurality of N values so that the terminal can determine the appropriate value of N based on the DMRS sequence corresponding to the PBCH of the received first SSB.

In another embodiment of the present invention, the second correspondence relationship may alternatively be a correspondence relationship between a plurality of DMRS sequences and a plurality of combinations of values of N and a portion of bits in the extended SSB index.

For example, in the second matching relation, the first DMRS sequence indicates that the two least significant bits of the extended SSB index are 10 and the value of N is two; and the second DMRS sequence indicates that the two least significant bits of the extended SSB index are 11 and the value of N is four. Thus, the terminal can determine the bit portion of the corresponding extended SSB index and the value N based on the DMRS sequence corresponding to the PBCH of the received first SSB. In other words, the value N and a portion of the bits in the SSB extension index may be encoded together and correspond to the DMRS sequence.

In some embodiments of the present invention, it is optionally provided that the value of N may be pre-configured or configured by the network device.

In some embodiments of the present invention, it is optionally provided that step S220 may, in particular, include:

determining the extended SSB index of the first SSB and/or the value N based on the first bit field and/or the second bit field in the PBCH of the first SSB in combination with the DMRS (demodulation reference signal) sequence of the PBCH and/or the third bit field in the PBCH , and the position of the bits in the third bit field in the RVSN channel partially or completely coincides with the position of the bits in the field of idle bits in the RVSN channel in the licensed spectrum.

In other words, some or all of the information about the extended SSB index of the first SSB may be carried by at least one of the first bit field and the second bit field and at least either the DMRS sequence or the third bit field. And some or all of the information about the value of N may be carried by at least one of the fields of the first bit field and the second bit field and at least either the DMRS sequence or the third bit field.

Hereinafter, the transfer mode of the extended SSB index and N value will be described, in particular, in connection with specific embodiments of the present invention, i.e. to options 1-3.

In the following embodiments of the present invention, it is assumed that the extended SSB index occupies K bits, the value N occupies P bits, the first bit field contains Q bits, and the second bit field contains M bits, and the values of K, P, Q and M are positive integers. .

In the first embodiment of the present invention, at least some of the extended SSB index and N value information is carried by the first bit field.

In some embodiments of the present invention, the DMRS sequence may be used to determine a portion of the extended SSB index bits. In particular, the DMRS sequence defines the K ₁ bits in the extended SSB index, where K ₁ < K, and the K ₁ bits are the least significant bits of K ₁ or the most significant bits K _{1 of} the number of bits K of the extended SSB index. In particular, the DMRS sequence and the K ₁ bits of the extended SSB index may have a first matching relation, and different DMRS sequences indicate different values of the K ₁ bits.

At least one of the other KK ₁ bits among the K bits may be carried by the third bit field, or it may also be carried by the first bit field.

The value N may be carried in the first bit field, or it may be carried in the third bit field, or it may be carried together by the first bit field and the third bit field.

In one specific example, K=5, K ₁ =3, the bits of K ₁ are the least significant three bits of the K bits, and the first bit field contains one bit, i. Q=1. As shown in FIG. 6, the DMRS sequence may be used to determine the least significant three bits (B0-B2) of the five extended SSB index bits, the third bit field may be used to carry the two most significant bits (B3-B4) of the extended SSB index, and the first bit field may be used to indicate the value of N; for example, N=2 may be set when the value of the first bit field is zero, and N=4 may be set when the value of the first bit field is one.

It should be understood that in this embodiment of the present invention, the length of each bit field, the number of bits occupied by the extended SSB index and the value of N, and the display modes mentioned above are for example only. For example, in one embodiment of the present invention, a portion of the extended SSB index bits may be carried jointly by the third bit field and the first bit field, but the embodiments of the present invention are not limited to this solution.

Therefore, in one embodiment of the present invention, by using the first bit field that is no longer significant (for SubCarrierSpacingCommon) in the NR-U system to carry part of the information about the extended SSB index and the value of N, the terminal obtains information about the extended SSB index and the value of N based on the first bit field so that, based on the extended SSB index and the value of N, the terminal can determine the QCL ratio of the SSBs.

In the second embodiment of the present invention, at least part of the extended SSB index and N value information is carried by the second bit field.

As can be understood from the above description, if in an unlicensed spectrum communication system it is specified that the PRB channel grids with and without SSB are co-located or have limited offset values with respect to the Friend's ^FDR , then a portion of the bits or all bits (corresponding to the second bit field) to carry at least part of the extended SSB index and N value information.

It is contemplated that the Ml bits from among the M bits of the ssb-SubcarrierOfFset field, i. the second bit field contains Ml bits. Optionally, the value of M may be 4 or 5; and, accordingly, the value of Ml may have a value of 4 or 5, or any value between 1-3.

As one embodiment of the present invention, the DMRS sequence may be used to determine a portion of the extended SSB index bits. In particular, the DMRS sequence may be used to determine the K ₁ bits of the extended SSB index. For specific determination modes, reference may be made to the corresponding description of the previous embodiments, which is not repeated hereinafter.

Other bits KK ₁ of the bits K may be carried by the second bit field and/or the third bit field.

The value N may be carried by the second bit field and/or the third bit field.

In one particular example, K=5, K ₁ =3, the K ₁ bits are the least significant three bits of the K bits. As shown in FIG. 7, the DMRS sequence may be used to determine the least significant three bits (B0-B2) of the five extended SSB index bits, the third bit field may be used to carry the two most significant bits (B3-B4) of the extended SSB index, and the second bit field is used to carry the value N. Alternatively, the second bit field may be used to carry the two most significant bits (B3-B4) of the extended SSB index, and the second bit field may additionally be used to carry the value N.

It should be understood that in this embodiment of the present invention, the length of each bit field, the number of bits occupied by the extended SSB index and the value of N, and the indication mode mentioned above are for example only. In one embodiment of the present invention, the value N may alternatively be carried by the third bit field, or a portion of the extended SSB index bits may be jointly carried by the third bit field and the second bit field, although embodiments of the present invention are not limited to this solution.

Therefore, in one of the embodiments of the present invention, the following is provided: if you indicate that the PRB channel grids with SSB and without SSB are co-located or have limited offset values relative to each other, then a part of the ssb-SubcarrierOffset information (corresponding to the second bit field) can be stored to carry part of the information about the extended SSB index and the N value so that, based on the second bit field, the terminal can obtain information about the extended SSB index and the N value, and accordingly can determine the QCL ratio of the SSB blocks based on the extended SSB index and the N value.

In the third embodiment of the present invention, at least part of the extended SSB index and N value information is carried by the first bit field and the second bit field.

In the third embodiment of the present invention, the first and second embodiments thereof are combined; and at least some of the extended SSB index and N value information may be carried jointly by the first bit field and the second bit field.

In one embodiment of the present invention, the DMRS sequence may be used to determine the Ki bits in the extended SSB index. For specific determination modes, reference may be made to the corresponding description of the previous embodiments, which is not repeated hereinafter.

The first bit field and the second bit field may be used to carry at least one bit from among the other K+PK ₁ bits in the extended SSB index and N value bit (K+P) information.

In some embodiments of the present invention, it is optionally provided that if the length of the first bit field and the second bit field is not sufficient, then a third bit field may be used to carry at least one bit of the K+PK ₁ bits.

In one specific example, K=5, K ₁ =3, P=2, and the K ₁ bits are the least significant three bits of the K bits. As shown in FIG. 8, the DMRS sequence can be used to determine the least significant three bits ( B0-B2) of the five bits of the extended SSB index, the third bit field may be used to carry the two most significant bits (B3-B4) of the extended SSB index, and the value N is carried by the first bit field and the second bit field, or the two most significant bits may be carried by the second bit field, and the value N may be carried by the third bit field.

It should be understood that the number of bits occupied by the extended SSB index and the N value and the indication modes mentioned above are for example only; and in one embodiment of the present invention, said indication modes may alternatively be flexibly adjusted based on the number of bits occupied by the extended SSB index and the value of N, along with the length values of the first bit field, the second bit field, and the third bit field, but the embodiments of the present invention do not solution is not limited.

Therefore, in one embodiment of the present invention, by using the SubCarrierSpacingCommon field (corresponding to the first bit field) and part or all of the bit fields of the ssb-SubcarrierOffset field (corresponding to the second bit field) to carry part of the information about the extended SSB index and the N value, it can be additionally the number of bits that can be used to carry extended SSB index and N value information has been increased so that, based on the first bit field and the second bit field, the terminal can obtain information about the extended SSB index and N value, and accordingly determine the QCL ratio of SSB blocks on based on information about the extended SSB index and N value.

The wireless communication method according to one of the embodiments of the present invention has been described in detail above from the standpoint of a terminal and in connection with FIGS. 2-8. Hereinafter, a wireless communication method according to another embodiment of the present invention will be described in detail in terms of a network device with reference to FIG. It should be understood that the description of the network device corresponds to the description of the terminal, and the above description can be correlated with similar descriptions, and therefore, in order to avoid duplication, it will not be repeated further in the text.

FIG. 9 is a flowchart illustrating an implementation flow of a wireless communication method 300 according to another embodiment of the present invention. Method 300 may be implemented by a network device included in the communications system shown in FIG. As shown in FIG. 9, method 300 includes step S310.

In step S310, the network device transmits to the terminal a first signal synchronization block (SSB) in the unlicensed spectrum, wherein an extended SSB index of the first SSB is determined based on the first bit field and/or the second bit field in the physical broadcast channel (PBC) of the first SSB and/or or a first parameter N for specifying a quasi-collocation relationship (QCL), wherein the value of N is a positive integer, the bit position of the first bit field in the PBCH is the same as the bit position of the subcarrier spacing bit field in the PBCH in the licensed spectrum, and the bit position the second bit field in the RVSN channel partially or completely matches the position of the bits in the subcarrier offset bit field in the RVSN channel in the licensed spectrum; and the extended SSB index of the first SSB and the value N are used to determine the terminal's QCL relationship for the first SSB and other SSBs, N being a positive integer.

In some embodiments of the present invention, it is optionally provided that the extended SSB index of the first SSB block is carried by the first bit field and/or the second bit field in the PBCH of the first SSB block, as well as the PBCH DMRS sequence and/or the third bit field in the RVSN channel, and the position of the bits in the third bit field in the RVSN channel partially or completely coincides with the position of the bits in the idle bit field in the RVSN channel in the licensed spectrum.

In some embodiments of the present invention, it is optionally provided that the least significant bits K ₁ in the extended SSB index are carried by the PBCH DMRS sequence, where the extended SSB index contains K bits, the values of K ₁ and K are positive integers, and K ₁ <K;

wherein at least one of the other KK ₁ bits in the extended SSB index is carried by the first bit field and/or the second bit field in the PBCH of the first SSB.

In some embodiments of the present invention, it is optionally provided that the value of N is carried as part of the subcarrier spacing information and/or subcarrier offset information in the PBCH of the first SSB, as well as the PBCH DMRS sequence and/or an idle bit in the PBCH.

In some embodiments of the present invention, it is optionally provided that the value of N is carried by the DMRS sequence of the PBCH.

In some embodiments of the present invention, it is optionally provided that the DMRS sequence of the PBCH and the first parameter N, wherein the second correspondence relation is the correspondence relation between the plurality of DMRS sequences and the plurality of values of the first parameter.

In some embodiments of the present invention, it is optionally provided that the second correspondence relation is a correspondence relation between a plurality of DMRS sequences and a plurality of combinations of the first parameter and a portion of bits in the extended SSB index.

In some embodiments of the present invention, it is optionally provided that the extended SSB index is used to denote the actual transmission position index of the first SSB of the plurality of candidate transmission positions.

In some embodiments of the present invention, it is optionally provided that the value N denotes the number of SSBs actually transmitted by the network device.

The embodiments of the method according to the present invention have been described in detail above in connection with FIGS. 2-9. Further on the text will be described in detail embodiments of the device according to the present invention in connection with Fig.10-14. It should be understood that embodiments of the device and embodiments of the method according to the present invention correspond to each other, and the description of the embodiments of the method can be correlated with a similar description of the embodiments of the device.

Figure 10 shows a block diagram of a terminal 400 according to one embodiment of the present invention. As shown in FIG. 10, terminal 400 includes a communication module 410 and a determination module 420.

The communication module 410 is configured to receive a first synchronization signal block (SSB) in the unlicensed spectrum.

The determiner 420 is configured to determine an extended SSB index of the first SSB and/or a first parameter N to determine a quasi-collocation relation (QCL) based on the first bit field and/or the second bit field in the Physical Broadcast Channel (PBC) of the first SSB , where N is a positive integer, the bit position of the first bit field in the RVSN channel coincides with the bit position in the subcarrier spacing bit field in the RVSN channel in the licensed spectrum, and the bit position of the second bit field in the RVSN channel partially or completely coincides with the bit position in subcarrier offset bit field in the Strategic Missile Forces channel in the licensed spectrum; and determining a QCL relationship for the first SSB and other SSBs based on the extended SSB index of the first SSB and the value N.

In some embodiments of the present invention, it is optionally provided that the determination module 420 is configured, in particular, to:

determining an extended SSB index of the first SSB and/or a value N based on a first bit field and/or a second bit field in the PBCH of the first SSB in combination with a demodulation reference signal sequence (DMRS) and/or a third bit field in the PBCH;

in this case, the position of bits in the third bit field in the RVSN channel partially or completely coincides with the position of the bits in the field of idle bits in the RVSN channel in the licensed spectrum.

In some embodiments of the present invention, it is optionally provided that the determination module 420 is configured, in particular, to:

determining the least significant bits K ₁ in the extended SSB index based on the DMRS sequence of the PBCH in combination with the first correspondence relation, the first correspondence relation being the correspondence relation between the plurality of DMRS sequences and the plurality of extended SSB indices, the extended SSB index contains K bits, the values of K ₁ and K are positive integers, a K ₁ <K; and

determining at least one of the other KK ₁ bits in the extended SSB index based on the first bit field and/or the second bit field in the PBCH of the first SSB.

In some embodiments of the present invention, it is optionally provided that the determiner 420 is further configured to determine the value of N based on the DMRS sequence of the PBCH.

In some embodiments of the present invention, it is optionally provided that the determining module 420 is configured, in particular, to determine the value of N based on the DMRS sequence of the PBCH in combination with the second correspondence relation, the second correspondence relation being the correspondence relation between the plurality of DMRS sequences and the plurality values of the first parameter.

In some embodiments of the present invention, it is optionally provided that the second correspondence relation is a correspondence relation between a plurality of DMRS sequences and a plurality of combinations of the first parameter and a portion of bits in the extended SSB index.

In some embodiments of the present invention, it is optionally provided that the value of N is pre-configured or configured by the network device.

In some embodiments of the present invention, it is optionally provided that the extended SSB index is used to indicate the position index of the actual transmission of the first SSB from among the plurality of candidate transmission positions.

In some embodiments of the present invention, it is optionally provided that the value N denotes the number of SSBs actually transmitted by the network device.

In some embodiments of the present invention, it is optionally provided that the determination module 420 is configured, in particular, to:

determining a QCL relationship between the first SSB and other SSBs based on the result of the extended SSB index of the first SSB modulo N.

In some embodiments of the present invention, it is optionally provided that the determination module 420 is further configured to:

determining that the first SSB and the second SSB are in a QCL relationship if the result on the extended SSB index of the second SSB modulo N is equal to the result on the extended SSB index of the first SSB modulo N.

It should be understood that the terminal 400 according to one embodiment of the present invention may be identical to the terminal disclosed within the description of one embodiment of the method according to the present invention, and the above and other operations and/or functions of the various modules included in the terminal 400, respectively, are intended for the terminal to implement the respective steps of the method 200 shown in FIG. 5, the description of which will not be repeated hereinafter for brevity.

Figure 11 shows a block diagram of a network device according to one embodiment of the present invention. The network device 500 shown in FIG. 11 includes a communication module 510.

The communication module 510 is configured to transmit a first synchronization block (SSB) to a terminal in the unlicensed spectrum, wherein based on the first bit field and/or the second bit field in the Physical Broadcast Channel (PBC) of the first SSB, an extended SSB index of the first SSB is determined and /or the first parameter N for specifying a quasi-collocation relationship (QCL), wherein the value of N is a positive integer, the bit position of the first bit field in the PBCH is the same as the bit position of the subcarrier spacing bit field in the PBCH in the licensed spectrum, and the position bits of the second bit field in the RVSN channel partially or completely matches the position of the bits in the subcarrier offset bit field in the RVSN channel in the licensed spectrum; and the extended SSB index of the first SSB and the value N are used to determine the terminal's QCL relationship for the first SSB and other SSBs, N being a positive integer.

In some embodiments of the present invention, it is optionally provided that the extended SSB index of the first SSB block is carried by the first bit field and/or the second bit field in the PBCH of the first SSB block, as well as the PBCH DMRS sequence and/or the third bit field in the RVSN channel, and the position of the bits in the third bit field in the RVSN channel partially or completely coincides with the position of the bits in the idle bit field in the RVSN channel in the licensed spectrum.

In some embodiments of the present invention, it is optionally provided that the least significant bits K ₁ in the extended SSB index are carried by the PBCH DMRS sequence, where the extended SSB index contains K bits, the values of Ki and K are positive integers, and K ₁ <K;

wherein at least one of the other KK ₁ bits in the extended SSB index is carried by the first bit field and/or the second bit field in the PBCH of the first SSB.

In some embodiments of the present invention, it is optionally provided that the value of N is carried as part of the subcarrier spacing information and/or subcarrier offset information in the PBCH of the first SSB, as well as the PBCH DMRS sequence and/or an idle bit in the PBCH.

In some embodiments of the present invention, it is optionally provided that the value of N is carried by the DMRS sequence of the PBCH.

In some embodiments of the present invention, it is optionally provided that the DMRS sequence of the PBCH and the first parameter N, wherein the second correspondence relation is the correspondence relation between the plurality of DMRS sequences and the plurality of values of the first parameter.

In some embodiments of the present invention, it is optionally provided that the second correspondence relation is a correspondence relation between a plurality of DMRS sequences and a plurality of combinations of the first parameter and a portion of bits in the extended SSB index.

In some embodiments of the present invention, it is optionally provided that the extended SSB index is used to denote the actual transmission position index of the first SSB of the plurality of candidate transmission positions.

In some embodiments of the present invention, it is optionally provided that the value N denotes the number of SSBs actually transmitted by the network device.

It should be understood that the network device 500 according to one embodiment of the present invention may be identical to the network device disclosed within the description of one embodiment of the method according to the present invention, and the above and other operations and/or functions of various modules included in the network devices 500, respectively, are designed for the network device to implement the appropriate stages within the method 300, as shown in Fig.5, the description of which for brevity is not repeated hereinafter.

FIG. 12 shows a block diagram of a communication device 600 according to one embodiment of the present invention. The communication device 600 shown in FIG. 12 includes a processor 610. The processor 610 can recall and execute a computer program to implement a method according to one embodiment of the present invention.

Optionally, as shown in FIG. 12, communication device 600 may further include memory 620. Processor 610 may recall and run memory 620 to implement a method according to one embodiment of the present invention.

Memory 620 may be a component independent of processor 610, or it may be integrated with processor 610.

Optionally, as shown in FIG. 12, communications device 600 may further include a transceiver 630. Transceiver 630 may be controlled by processor 610 to communicate with other devices. In particular, the transceiver 630 may transmit information or data to other devices or receive information or data transmitted by other devices.

The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further comprise one or more antennas.

Optionally, the communication device 600 may be, in particular, a network device according to one of the embodiments of the present invention, and the communication device 600 may implement the corresponding steps performed by the network device within various methods according to the embodiments of the present invention, the description of which for brevity further in the text is not repeated.

Optionally, the communication device 600 may be specifically a terminal/mobile terminal according to the embodiments of the present invention, and the communication device 600 may implement the respective steps performed by the terminal/mobile terminal in various methods according to the embodiments of the present invention, the description of which for brevity of presentation is not repeated further in the text.

Figure 13 shows a block diagram of a chip according to one of the embodiments of the present invention. Chip 700 shown in FIG. 13 includes a processor 710. Processor 710 can recall and execute a computer program to implement methods according to embodiments of the present invention.

Optionally, as shown in FIG. 13, chip 700 may further include memory 720. Processor 710 may recall memory 720 and execute a computer program to implement methods according to embodiments of the present invention.

Memory 720 may be a component independent of processor 710, or it may be integrated with processor 710.

Optionally, chip 700 may further include an input interface 730. Input interface 730 may be controlled by processor 710 to communicate with other devices or chips. In particular, processor 710 may receive information or data from other devices or chips.

Optionally, chip 700 may further include an output interface 740. Output interface 740 may be controlled by processor 710 to communicate with other devices or chips. In particular, processor 710 may provide information or data to other devices or chips.

Optionally, the chip is applicable to a network device according to one of the embodiments of the present invention, and the chip can perform the corresponding steps implemented by the network device within various methods according to the embodiments of the present invention, the description of which, for brevity, is not repeated hereinafter.

Optionally, the chip is applicable to a terminal/mobile terminal according to one of the embodiments of the present invention, and the chip can perform the corresponding steps implemented by the terminal/mobile terminal in various methods according to the embodiments of the present invention, the description of which will not be repeated hereinafter for brevity. .

It should be understood that the chip specified in the embodiments of the present invention may also be referred to as a system-level chip, system chip, single-chip system, chip-based system, or otherwise.

FIG. 14 shows a block diagram of a communication system 900 according to one embodiment of the present invention. As shown in FIG. 14, communication system 900 includes a terminal 910 and a network device 920.

In the context of this document, the terminal 910 may be configured to perform the corresponding functions implemented by the terminal in the framework of the methods described above, and the network device may be configured to perform the corresponding functions implemented by the network device in the framework of the methods described above, which, for brevity, hereinafter text is not repeated.

It should be understood that the processor of the present invention may be an integrated circuit chip capable of signal processing. During its practical implementation, the described steps of the embodiments of the proposed method disclosed above may be performed by a hardware integrated logic circuit in a processor or by means of software instructions. The processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an FPGA or other programmable logic device, a discrete logic element, or a transistorized logic element, or a discrete hardware component. The processor may perform or execute various methods, steps, and flowcharts described in the embodiments of the present invention. The general purpose processor may be a microprocessor, or any conventional processor or other similar device. The steps of the methods disclosed in connection with embodiments of the present invention may be performed directly by a hardware decoding processor executing or implementing its functions, or by using a combination of hardware and software modules in a decoding processor. The program modules may be located in a storage medium commonly used in the art, such as random access memory, flash memory, read only memory, programmable read only memory, electrically erasable program read only memory or a register. The storage medium is located in the memory and the processor reads the information stored in the memory and performs the steps of the described methods in cooperation with the processor hardware.

It should be understood that the memory in embodiments of the present invention may be non-volatile or volatile memory; or it may include both non-volatile and volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory may be a random access memory (RAM) that serves as an external cache. By way of non-limiting example, Random Access Memory (RAM) can be represented in a variety of forms, such as Static RAM Device (SRAM), Dynamic RAM Device (DRAM), Synchronous Dynamic RAM Device (SDRAM) , Dual Rate SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic RAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Resident Access Bus RAM (DR RAM). It should be noted that the memory for the systems and methods described herein is intended to include, among other things, these and any other memory units of a suitable type.

It should be understood that the memory described is by way of example only and is not limiting. For example, the memory of embodiments of the present invention may also be Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Dual Rate Synchronous Dynamic Random Access Memory (DDR SDRAM), advanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchlink Dynamic Random Access Memory (SLDRAM), Direct Resident Access Bus Random Access Memory (DR RAM), or similar device. In other words, it is assumed that the memory in the embodiments of the present invention includes, among other things, these and other memory blocks of a suitable type.

One embodiment of the present invention further provides a computer readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium is applicable to a network device according to one of the embodiments of the present invention, and the computer program enables the computer to perform the corresponding steps implemented by the network device in various methods according to the embodiments of the present invention, which, for brevity, is not repeated hereinafter. .

Optionally, a computer-readable storage medium is applicable to a terminal/mobile terminal according to one embodiment of the present invention, and the computer program enables the computer to perform the corresponding steps implemented

terminal/mobile terminal within various methods according to embodiments of the present invention, which is not repeated hereinafter for brevity.

One embodiment of the present invention further provides a computer program product containing computer program instructions.

Optionally, the computer program product is applicable to a network device according to one embodiment of the present invention, and the instructions of the computer program enable the computer to perform the appropriate steps implemented by the network device in various methods according to the embodiments of the present invention, which, for brevity's sake, is not included hereinafter. repeats.

Optionally, the computer program product is applicable to a terminal/mobile terminal according to one embodiment of the present invention, and the instructions of the computer program enable the computer to perform the respective steps implemented by the terminal/mobile terminal in various methods according to the embodiments of the present invention, which for brevity further in the text is not repeated.

One embodiment of the present invention further provides a computer program.

Optionally, a computer program is applicable to a network device according to one embodiment of the present invention. When this computer program is run on the computer, the computer is enabled to perform the respective steps implemented by the network device in various methods according to the embodiments of the present invention, which will not be repeated hereinafter for the sake of brevity.

Optionally, a computer program is applicable to a terminal/mobile terminal according to one embodiment of the present invention. When this computer program is run on the computer, the respective steps implemented by the terminal/mobile terminal in various methods according to the embodiments of the present invention can be performed by the computer, which will not be repeated hereinafter for brevity.

One skilled in the art will appreciate that the exemplary modules and algorithm steps described in connection with the embodiments of the claimed invention disclosed herein may be implemented in electronic hardware or a combination of electronic hardware and computer software. Whether these functions are implemented in hardware or software depends on the particular application and design constraints of the technical solutions. In each particular case, specialists in the art can use different ways to implement the described functions, but such implementation should not be considered as going beyond the scope of the present invention.

Those skilled in the art should be fully aware that, for convenience and brevity, the specific operating processes of the systems, devices, and modules described above refer to the corresponding processes performed within the embodiments of the method of the present invention, and therefore are not re-described here. document.

It should be understood that in some embodiments of the present invention, the disclosed systems, devices, and methods may be implemented differently. For example, the device embodiments described are for illustrative purposes only. For example, the separation of modules is only a separation of logical functions, and other separation options can be implemented in practice. For example, multiple modules or components may be combined or integrated into another system; or some features may be dropped or not executed. In addition, the interconnection or direct connection or communication connection illustrated or described may be implemented through some interfaces, devices or modules in electrical, mechanical or other form.

Modules described as separate components may or may not be physically separated from each other; and components represented as modules may or may not be physical modules, may reside in the same location, or they may be distributed among multiple network modules. Some or all of the modules may be selected depending on the actual needs to achieve the objectives of the solutions implemented in the embodiments of the present invention.

In addition, various functional modules in various embodiments of the present invention may be integrated into one data processing module, or each of the modules may be a physically separate module, or two or more modules may be combined into a single module.

When the functions are implemented as software functional modules that are freely marketed or used as a standalone product, they may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the claimed invention - in whole, in part, or in that part of it that improves the prior art - can be implemented in the form of a software product. The computer program product is stored in a storage medium and includes various instructions that cause a computing device (which can be a personal computer, server, network device, or other similar device) to execute all or some of the steps of the methods described in various embodiments of this inventions. The storage medium includes various media capable of storing program codes, such as a USB flash drive, an external hard drive, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The embodiments of the present invention described above are only some specific examples of its implementation, and the scope of legal protection of the claimed invention is not limited to them. Any person skilled in the art can easily develop any changes or replacements within the technical scope disclosed in this document, which should be included in the scope of legal protection of the claimed invention. Therefore, the scope of legal protection of the present invention should be determined by the scope of legal protection of the claims.

Claims (51)

1. A wireless communication method, comprising: reception by the terminal of the first block of the synchronization signal (SSB) in the unlicensed spectrum; wherein the physical broadcast channel (PBCH) of the first SSB contains a first bit field, a second bit field, and a set of idle bits, wherein the set of idle bits comprises one or more than one idle bit; determining the first parameter N based on the first bit field and one of the following: a second bit field or a set of idle bits, moreover, the value of N is a positive integer, and the first parameter N is used to determine the quasi-collateral placement (QCL); and determining a QCL relationship between the first SSB and other SSBs based on the extended SSB index of the first SSB and the N value. 2. The method of claim 1, wherein the information carried by the PBCH comprises a plurality of bits in a service information block (MIB) from an upper layer, the plurality of bits comprising a subcarrier spacing information bit, a subcarrier offset information bit, and an idle bit. 3. The method according to claim 1 or 2, wherein determining the first parameter N based on the first bit field and one of the following: the second bit field or set of idle bits includes: determining a first parameter N based on the first bit field and the second bit field. 4. The method according to any one of paragraphs. 1-3, in which the first parameter N is carried by the first bit field and the idle bit field. 5. The method of claim 1, wherein the PBCH further comprises a third bit field, and the extended SSB index of the first SSB is determined by a demodulation reference signal sequence (DMRS) of the PBCH and the third bit field; wherein the third bit field corresponds to part or all of the bits of the idle bit field in the RVSN channel in the licensed spectrum. 6. The method according to any of the preceding claims 1-5, wherein the extended SSB index is used to indicate an actual transmission position index of the first SSB from among the plurality of transmission candidate positions. 7. A method according to any of the preceding claims 1-6, wherein determining the QCL relationship between the first SSB and the other SSBs based on the extended SSB index of the first SSB and the value N comprises: determining by the terminal a QCL relationship between the first SSB and other SSBs based on the result of the extended SSB index of the first SSB modulo N. 8. The method of claim 7, wherein the terminal determines the QCL relationship between the first SSB and the other SSBs based on the result of the extended SSB index of the first SSB modulo N, comprising: determining that the first SSB and the second SSB are in a QCL relationship if the result on the extended SSB index of the second SSB modulo N is equal to the result on the extended SSB index of the first SSB modulo N. 9. A wireless communication method, comprising: transmission by the network device of the first block of the synchronization signal (SSB) to the terminal in the unlicensed spectrum, while the physical broadcast channel (PBC) of the first block SSB contains the first bit field, the second bit field and a set of idle bits, while the set of idle bits contains one or more than one idle bit; wherein the first parameter N is determined based on the first bit field and one of the following: a second bit field or a set of idle bits, wherein the value of N is a positive integer, the first parameter N is used to determine the quasi-collocation (QCL), while the extended SSB index of the first SSB and the value of N are used to determine the terminal's QCL relationship of the first SSB and other SSBs. 10. The method of claim 9, wherein the information carried by the PBCH comprises a plurality of bits in an overhead information block (MIB), the plurality of bits comprising a subcarrier spacing information bit, a subcarrier offset information bit, and an idle bit. 11. The method of claim 9 or 10, wherein determining the first parameter N based on the first bit field and one of the following: the second bit field or set of idle bits comprises: determining a first parameter N based on the first bit field and the second bit field. 12. The method according to any one of paragraphs. 9-11, in which the first parameter N is carried by the first bit field and the idle bit field. 13. The method of claim 9, wherein the PBCH further comprises a third bit field, and the extended SSB index of the first SSB is determined by a demodulation reference signal sequence (DMRS) of the PBCH and the third bit field; wherein the third bit field corresponds to part or all of the bits of the idle bit field in the RVSN channel in the licensed spectrum. 14. The method of any of the preceding claims 9-13, wherein the extended SSB index is used to indicate an actual transmission position index of the first SSB from among the plurality of transmission candidate positions. 15. A wireless communication terminal, comprising: a communication module configured to receive a first synchronization signal block (SSB) in the unlicensed spectrum, wherein the physical broadcast channel (PBC) of the first SSB contains a first bit field, a second bit field, and a set of idle bits, wherein the idle bit set contains one or more than one idle bit; a determining module configured to determine the first parameter N based on the first bit field and one of the following: a second bit field or a set of idle bits, wherein the value of N is a positive integer and the first parameter N is used to determine quasi-collocation (QCL); and configured to determine a quasi-collocation (QCL) of the first SSB and other SSBs based on the extended SSB index of the first SSB and the value N. 16. The terminal of claim 15, wherein the information carried by the PBCH comprises a plurality of bits in a service information block (MIB) from an upper layer, the plurality of bits comprising a subcarrier spacing information bit, a subcarrier offset information bit, and an idle bit. 17. The terminal according to claim 15 or 16, in which the determination module is additionally configured to: determining a first parameter N based on the first bit field and the second bit field. 18. The terminal according to any one of paragraphs. 15-17, in which the first parameter N is carried by the first bit field and the idle bit field. 19. The terminal according to claim 15, wherein the PBCH further comprises a third bit field, and the extended SSB index of the first SSB block is determined by the demodulation reference signal sequence (DMRS) of the PBCH and the third bit field; wherein the third bit field corresponds to part or all of the bits of the idle bit field in the RVSN channel in the licensed spectrum. 20. The terminal as in any of the preceding claims 15-19, wherein the extended SSB index is used to indicate an actual transmission position index of the first SSB from among the plurality of transmission candidate positions. 21. The terminal according to any one of the preceding claims 15-20, wherein the determination module is configured, in particular, to: determining a QCL relationship between the first SSB and other SSBs based on the result of the extended SSB index of the first SSB modulo N. 22. The terminal according to claim 21, in which the determination module is configured with the additional ability to: determining that the first SSB and the second SSB are in a QCL relationship if the result on the extended SSB index of the second SSB modulo N is equal to the result on the extended SSB index of the first SSB modulo N. 23. Wireless network device, comprising: a communication module configured to transmit a first synchronization signal block (SSB) to a terminal in the unlicensed spectrum, wherein the physical broadcast channel (PBC) of the first SSB contains a first bit field, a second bit field and a set of idle bits, wherein the set of idle bits comprises one or more than one idle bit; moreover, based on the first bit field and one of the following: the second bit field or a set of idle bits, the first parameter N is determined, moreover, the value of N is a positive integer, and the first parameter N is used to determine the quasi-collocation (QCL); wherein the extended SSB index of the first SSB and the value N are used by the terminal to determine the QCL relationship of the first SSB and other SSBs. 24. The network device of claim 23, wherein the information carried by the PBCH contains a plurality of bits in a service information block (MIB) from an upper layer, wherein the plurality of bits comprises a subcarrier spacing information bit, a subcarrier offset information bit, and an idle bit. . 25. The network device of claim 23 or 24, wherein determining the first parameter N based on the first bit field and one of the following: the second bit field or set of idle bits includes: determining a first parameter N based on the first bit field and the second bit field. 26. Network device according to any one of paragraphs. 23-25, in which the first parameter N is carried by the first bit field and the idle bit field. 27. The network device of claim 23, wherein the PBCH further comprises a third bit field, and the extended SSB index of the first SSB is determined by the demodulation reference signal sequence (DMRS) of the PBCH and the third bit field, the third bit field corresponding to part or all of the bits fields of idle bits in the Strategic Missile Forces channel in the licensed spectrum. 28. The network device according to any of the preceding claims 23-27, wherein the extended SSB index is used to indicate an actual transmission position index of the first SSB of the plurality of transmission candidate positions.

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