Wireless communication method, terminal device, and network device

Abstract

To provide a method for a terminal device to determine the quasi co-location (QCL) relationship between SSBs transmitted from a network device, in an unlicensed spectrum.SOLUTION: A terminal device receives a first synchronization signal block (SSB) in an unlicensed spectrum. A physical broadcast channel (PBCH) of the first SSB includes a first bit field, a second bit field, and an idle bit field. The terminal device determines a first parameter N based on the first bit field and the second bit field. N is a positive integer and the first parameter N is used to determine a quasi co-location (QCL) relationship.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The embodiments of the present application relate to the field of communications, and in particular to a wireless communication method, a terminal device, and a network device. [Background technology]

[0002] In a 5G NR (5-Generation New Radio) system, which is a fifth-generation mobile communication system, an index of a synchronization signal block (SSB, Synchronization Signal / Physical Broadcast Channel block) may be transmitted periodically, and in one SSB cycle, the transmission position of the SSB is determined, and a terminal device can determine the transmission position of the SSB based on the index of the received SSB.

[0003] In an unlicensed spectrum, a communication device follows the "Listen Before Talk (LBT)" principle, i.e., a communication device needs to perform channel sensing before transmitting a signal on a channel of an unlicensed spectrum. Only when the channel sensing result is channel idle, the communication device can transmit a signal; if the communication device performs channel sensing on a channel of an unlicensed spectrum and the result is channel busy, the communication device cannot transmit a signal.

[0004] When the 5G NR system is applied to an unlicensed spectrum, the network device cannot transmit SSBs unless it has successfully completed LBT and obtained the right to use the channel, i.e., the starting position for actually transmitting SSBs in the unlicensed frequency band cannot be determined, and after receiving the SSBs, the terminal device cannot grasp the quasi-co-located (QCL) relationship between the SSBs, and therefore cannot perform merging and filtering processing on SSBs with QCL relationships, which affects system performance. Therefore, how to determine the QCL relationship between SSBs is a problem worth studying. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide a wireless communication method, a terminal device, and a network device capable of determining the QCL relationship of an SSB. [Means for solving the problem]

[0006] In a first aspect, a wireless communication method is provided, the method including: a terminal device receiving a first synchronization signal block (SSB) in an unlicensed spectrum; determining a first parameter N for determining an extended SSB index and / or a quasi-coexistence (QCL) relationship of the first SSB based on a first bit field and / or a second bit field in a physical broadcast channel (PBCH) of the first SSB, where N is a positive integer, a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on a licensed spectrum, and a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on a licensed spectrum; and determining a QCL relationship between the first SSB and another SSB based on the extended SSB index of the first SSB and the N.

[0007] In a second aspect, a wireless communication method is provided, the method including: a network device transmitting a first synchronization signal block (SSB) to a terminal device in an unlicensed spectrum; determining an extended SSB index and / or a first parameter N for determining a quasi-coexistence (QCL) relationship of the first SSB based on a first bit field and / or a second bit field in a physical broadcast channel (PBCH) of the first SSB, where N is a positive integer, a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on a licensed spectrum, a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on a licensed spectrum, the extended SSB index of the first SSB and the N are used by the terminal device to determine a QCL relationship between the first SSB and other SSBs, and the N is a positive integer.

[0008] In a third aspect, there is provided a method of wireless communication, the method comprising: The terminal device determines a first parameter N for determining a quasi-coexistence (QCL) relationship by referring to a second correspondence relationship based on a demodulation reference signal (DMRS) sequence of a physical broadcast channel (PBCH) in a first synchronization signal block (SSB) received, and the second correspondence relationship is a correspondence relationship between a plurality of DMRS sequences and a plurality of values ​​of the first parameter.

[0009] In some possible implementations, the second correspondence is a correspondence between a plurality of DMRS sequences and a combination of a plurality of first parameters and some bits in the extended SSB index.

[0010] In some possible implementations, N is the number of SSBs actually transmitted by the network device.

[0011] In a fourth aspect, there is provided a method of wireless communication, the method comprising: The network device transmits a second correspondence relationship to the terminal device, the second correspondence relationship being used by the terminal device to determine a first parameter N for determining a quasi-coexistence (QCL) relationship, and the second correspondence relationship being a correspondence relationship between a plurality of DMRS sequences and a plurality of values ​​of the first parameter.

[0012] In some possible implementations, the second correspondence is a correspondence between a plurality of DMRS sequences and a combination of a plurality of first parameters and some bits in the extended SSB index.

[0013] In some possible implementations, N is the number of SSBs actually transmitted by the network device.

[0014] In a fifth aspect, there is provided a terminal device, adapted for performing the method of the first aspect or any possible implementation manner of the first aspect, or adapted for performing the method of the third aspect or any possible implementation manner of the third aspect, specifically comprising a unit for performing the method of the first aspect or any one of the possible implementation manners of the first aspect, or comprising a unit for performing the method of the third aspect or any possible implementation manner of the third aspect.

[0015] In a sixth aspect, there is provided a network device, adapted for performing the method of the second aspect or any possible implementation manner of the second aspect, or adapted for performing the method of the fourth aspect or any possible implementation manner of the fourth aspect, wherein the network device comprises a unit for performing the method of the second aspect or any one of the possible implementation manners of the second aspect, or comprises a unit for performing the method of the fourth aspect or any possible implementation manner of the fourth aspect.

[0016] In a seventh aspect, there is provided a terminal device, comprising a processor and a memory, the memory being adapted to store a computer program, and the processor being adapted to call and execute the computer program stored in the memory to perform the method of the first aspect or any of its implementations, or to perform the method of the third aspect or any of the possible implementations of the third aspect.

[0017] In an eighth aspect, there is provided a network device, the network device comprising a processor and a memory, the memory being adapted to store a computer program, and the processor being adapted to call and execute the computer program stored in the memory to perform the method of the second aspect or any of its implementations, or the method of the fourth aspect or any of the possible implementations of the fourth aspect.

[0018] In a ninth aspect, a chip is provided, which is used for realizing the method in any one of the first to fourth aspects or each of the realization methods thereof.

[0019] Specifically, the chip is equipped with a processor that calls up and executes a computer program from memory, and causes a device equipped with the chip to execute a method according to any one of the first to fourth aspects or each of the implementation methods thereof.

[0020] In a tenth aspect, a computer-readable storage medium is provided, which is used to store a computer program, and the computer program causes a computer to execute a method in any one of the first to fourth aspects or each of the realization methods thereof.

[0021] In an eleventh aspect, there is provided a computer program product, comprising computer program instructions for causing a computer to execute a method according to any one of the first to fourth aspects or each of the implementations thereof.

[0022] In a twelfth aspect, a computer program is provided, which, when executed in a computer, causes the computer to execute the method according to any one of the first to fourth aspects or each of the realization methods thereof. Effect of the Invention

[0023] According to the above technical solution, after receiving an SSB, the terminal device can determine an extended SSB index of the first SSB and / or a first parameter N for determining a quasi-coexistence (QCL) relationship based on a first bit field and / or a second bit field in the physical broadcast channel (PBCH) of the first SSB, and can further determine a QCL relationship between the first SSB and other SSBs based on the extended SSB index of the first SSB and N. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1 is a schematic diagram of an application scene according to an embodiment of the present application. [Diagram 2] FIG. 2 is a schematic diagram of transmitting SSB in unlicensed spectrum. [Diagram 3] Figure 3 is a schematic diagram of the SSB candidate positions and their relationship to the QCL. [Figure 4] FIG. 4 is a schematic diagram of SSB transmission based on the candidate positions and QCL relationships shown in FIG. [Diagram 5] FIG. 5 is a schematic diagram of a wireless communication method according to an embodiment of the present application. [Figure 6] FIG. 6 is a schematic diagram of the extended SSB index and N indication method. [Figure 7] FIG. 7 is a schematic diagram of another indication method of the extended SSB index and N. [Figure 8] FIG. 8 is a schematic diagram of yet another indication method of the extended SSB index and N. [Figure 9] FIG. 9 is a schematic diagram of another wireless communication method according to an embodiment of the present application. [Figure 10]FIG. 10 is a schematic block diagram of a terminal device according to an embodiment of the present application. [Figure 11] FIG. 11 is a schematic block diagram of a network device according to an embodiment of the present application. [Figure 12] FIG. 12 is a schematic block diagram of a communication device according to another embodiment of the present application. [Figure 13] FIG. 13 is a schematic block diagram of a chip according to an embodiment of the present application. [Figure 14] FIG. 14 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] Hereinafter, the technical solutions of the embodiments of the present application will be described with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, any other embodiments that a person skilled in the art can obtain without inventive efforts fall within the scope of protection of the present application.

[0026] The technical solutions of the embodiments of the present application may be used in various communication systems, such as a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD) system, an Advanced long term evolution (LTE-A) system, a New Radio (NR) system, an evolved system of an NR system, an LTE-based access to unlicensed spectrum (LTE-U) system, an NR-based access to unlicensed spectrum (NR-U) system, a Universal Mobile Telecommunications System (UMTS), ... The present invention may be applied to a wireless communication system, such as a Wireless Local Area Network (WLAN), a Wireless Fidelity (WiFi), a next generation communication system, or other communication systems.

[0027] Generally, the number of connections supported by conventional communication systems is limited and easy to implement. However, with the development of communication technology, mobile communication systems not only support conventional communications, but also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and vehicle-to-vehicle (V2V) communication, and the embodiments of the present application can also be applied to these communication systems.

[0028] Exemplarily, a communication system 100 to which the embodiment of the present application is applied is shown in FIG. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (also referred to as a communication terminal or terminal). The network device 110 may provide communication coverage in a specific geographical area and communicate with the terminal device in the coverage area. Optionally, the network device 110 may be a base station (BTS, Base Transceiver Station) in a GSM system or a CDMA system, a base station (NB, Node B) in a WCDMA system, an evolved base station (eNB or eNodeB, Evolutional Node B) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN, Cloud Radio Access Network). Alternatively, the network device may be a mobile switching center, a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, a network side device in a 5G network, or a network device in a public land mobile network (PLMN) that will be developed in the future.

[0029] The communication system 100 further comprises at least one terminal device 120 within the coverage area of ​​the network device 110. As used herein, a "terminal device" includes, but is not limited to, those that connect via wired lines, such as Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable, and / or other data connections / networks, and / or wireless interfaces, such as cellular networks, Wireless Local Area Networks (WLAN) digital television networks, such as DVB-H networks, satellite networks, AM-FM broadcast transmitters, and / or devices configured to transmit and receive communication signals to other terminal devices, and / or Internet of Things (IoT) devices. A terminal device configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," "wireless terminal," or "mobile terminal." Examples of mobile terminals include, but are not limited to, satellite or cellular telephones, Personal Communications System (PCS) terminals that may combine cellular radiotelephone and data processing, fax and data communication capabilities, wireless telephones, pagers, PDAs that may have Internet / intranet access, web browsers, notepads, calendars and / or Global Positioning System (GPS) receivers, and conventional laptop and / or palmtop receivers or other electronic devices with radiotelephone transceivers. Terminal equipment may refer to an access terminal, User Equipment (UE), user element, subscriber station, mobile station, traverser, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device.The access terminal may be a cellular telephone, a cordless phone, a Session Initiation Protocol (SIP) telephone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a mobile terminal with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolving PLMN, etc.

[0030] Alternatively, the terminal devices 120 can communicate with each other in a Device to Device (D2D) manner.

[0031] Alternatively, a 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0032] 1 shows one network device and two terminal devices as an example. Alternatively, the communication system 100 may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area, and the embodiment of the present application is not limited thereto.

[0033] Optionally, the communication system 100 may further comprise other network entities, such as a network controller, a mobility management entity, etc., and the embodiments of the present application are not limited thereto.

[0034] It should be understood that in the embodiment of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system 100 shown in Fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 having a communication function, and the network device 110 and the terminal device 120 may be the above specific devices, and detailed description is omitted here. The communication device may further include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., and the embodiment of the present application is not limited thereto.

[0035] As will be understood, the terms "system" and "network" are often used interchangeably herein. The term "and / or" in this specification is merely for describing the related relationship of related objects, and indicates that three relationships may exist. For example, "A and / or B" may indicate three situations: "A exists independently," "A and B exist simultaneously," and "B exists independently." Also, the character " / " in this specification generally indicates that the preceding and following related objects are in an "or" relationship.

[0036] In an NR system, an SSB may be transmitted in a certain time window (e.g., a 5 ms time window) and may be repeatedly transmitted in a certain cycle. Alternatively, the cycle may be, for example, 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, etc. In one time window, the maximum number of SSBs that a network device can transmit is L, and the number of SSBs that the network device actually transmits may be less than L.

[0037] The terminal device can obtain the index of the SSB through the received SSB, where the SSB index corresponds to the relative position of the SSB in the time window, and the terminal device determines the position of the SSB in the radio frame based on the SSB index and a half-frame indication carried by a physical broadcast channel (PBCH), thereby achieving frame synchronization.

[0038] Regarding the QCL relationship, the terminal device may assume that SSBs with the same SSB index have a QCL relationship, i.e., if the indexes of SSBs received by the terminal device at different times are the same, they are considered to have a QCL relationship.

[0039] In the NR-U system, channel resources in the unlicensed spectrum are shared, so when a communication device uses these shared resources, it must first sense an idle channel before using the channel, and in this case, it is difficult to ensure that the SSB is periodically transmitted and received at a fixed position, because the timing position at which the transmitting device succeeds in the LBT is unpredictable, and there is a high possibility that the SSB transmission and reception will fail due to the failure of the LBT.

[0040] Therefore, multiple SSB candidate positions are provided in the NR-U system, so that after the LBT is successful, the SSB candidate positions for transmitting the SSB are still sufficient, and the reception of the SSB is avoided from being affected by the failure of the LBT. Specifically, Y SSB candidate positions may be set in one time window, and a maximum of L SSBs can be transmitted at the candidate positions for transmitting the Y SSBs, where L is smaller than Y, and the transmitting device cannot transmit the SSB unless it obtains an available channel.

[0041] Taking the case where L is 4 and Y is 20 as an example in a time window of 5 ms, as shown in FIG. 2, if the network device succeeds in LBT before the candidate location 12, it starts transmitting an SSB with an SSB index of 0 to 3 at the candidate location 12. Therefore, in the NR-U system, the actual transmission location of the SSB may start from any one of the Y candidate locations. Therefore, if the terminal device needs to achieve frame synchronization by the SSB received at the candidate location, in one implementation, an extended SSB index may be defined to indicate the Y candidate locations, in which case the index included in the SSB is extended from 0 to Y-1, and then the terminal device can determine the actual transmission location of the SSB in the time window based on the extended SSB index included in the received SSB, and further achieve frame synchronization.

[0042] That is, the extended SSB index carried by the SSB may be understood to be a position index of the SSB in a time window, and may be referred to as an SSB position index, or in other words, the extended SSB index carried by the SSB is used to indicate the position index of the actual transmission position of the SSB among the Y candidate positions.

[0043] In order to allow the terminal device to determine the QCL relationship between SSBs, in one implementation, it may be assumed that SSBs whose extended SSB index is the same modulo L in one time window have a QCL relationship. Based on such an assumption, SSBs in the same beam can only be transmitted at specific candidate positions. As shown in Figure 3, taking L=8 and Y=32 as an example, SSBs whose extended SSB index is the same modulo 8 have a QCL relationship, and the extended SSB index ranges from 0 to 31, and in this case, it can be determined that SSBs whose extended SSB index is 0, 8, 16, and 24 have a QCL relationship.

[0044] However, the problem caused by the above technical solution is that there is a binding relationship between the QCL attribute of the SSB actually transmitted by the network device and the candidate positions, that is, the SSB that satisfies the QCL relationship can only be transmitted at some fixed positions, and cannot be transmitted at any one of the candidate positions, and since the use of signals in the unlicensed spectrum is based on the LBT mechanism, such a restriction will inevitably reduce the channel usage efficiency.

[0045] 4, L=8, Y=20 is taken as an example. If the number of SSBs actually transmitted by the network device is 4, and the SSB indexes of the four SSBs are 4, 5, 6, and 7, based on the above assumption, the SSB with the SSB index of 4 can only be transmitted at the candidate positions 4 and 12. If the network device successfully completes the LBT before the candidate position 8, the network device must arrive at the candidate position 12 before it can begin to transmit the four SSBs with the SSB indexes of 4, 5, 6, and 7, so that the channels at the candidate positions 8-11 cannot be used, resulting in a waste of resources. Meanwhile, in the NR-U system, if the time-frequency resource between the candidate positions 8 and 11 is not occupied, other devices may successfully sense the LBT in the time-frequency resource, occupy the channel, and affect the transmission of the SSB after the candidate position 12.

[0046] In view of this, embodiments of the present application provide a new determination scheme that can be used to determine the QCL relationship of an SSB and helps to reduce resource waste in unlicensed spectrum.

[0047] FIG. 5 is a schematic flowchart of a wireless communication method according to an embodiment of the present application, where the method 200 can be performed by a terminal device in the communication system shown in FIG. 1. As shown in FIG. 5, the method 200 includes at least one of the following:

[0048] S210, the terminal device receives a primary synchronization signal block (SSB) in the unlicensed spectrum.

[0049] S220, determining a first parameter N for determining an extended SSB index and / or a quasi-coexistence (QCL) relationship of the first SSB based on a first bit field and / or a second bit field in a physical broadcast channel (PBCH) of the first SSB, where N is a positive integer, a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on a licensed spectrum, and a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on a licensed spectrum.

[0050] S230, determining a QCL relationship between the first SSB and other SSBs based on an extended SSB index of the first SSB and the N.

[0051] In the embodiments of the present application, in order to allow the terminal device to determine the QCL relationship between SSBs, the terminal device may obtain a first parameter N, and determine the QCL relationship between the received first SSB and other SSBs based on the extended SSB index of the received first SSB and N. In some implementations, the terminal device may assume that SSBs having the same extended SSB index modulo N have a QCL relationship. Furthermore, the terminal device may perform a filtering process on the SSBs having a QCL relationship to obtain a beam level measurement result, which is helpful in improving system performance.

[0052] Alternatively, in the embodiments of the present application, the extended SSB index of an SSB may be understood to be the position index of the SSB in the time window for transmitting the SSB, and may be referred to as the SSB position index, or in other words, the extended SSB index carried by the SSB is used to indicate the position index of the actual transmission position of the SSB among the Y candidate positions.

[0053] Alternatively, in the embodiment of the present application, N may be the number of SSBs actually transmitted by the network device, or may be other parameters for determining the QCL relationship of the SSBs, and the embodiment of the present application is not limited thereto.

[0054] Optionally, in an embodiment of the present application, the first SSB may be The synchronization signal includes at least one of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH).

[0055] As an option, in an embodiment of the present application, the terminal device may determine at least one of the extended SSB index and N based on at least one of a first bit field and a second bit field in the PBCH of the received first SSB, where the first bit field in the PBCH may correspond to a subcarrier spacing bit field in the PBCH on the licensed spectrum, and the second bit field in the PBCH may correspond to some or all of the bit positions of a subcarrier offset bit field in the PBCH on the licensed spectrum.

[0056] For ease of understanding and explanation, a brief description of the information carried by the PBCH in the licensed spectrum will be provided.

[0057] The information carried by the PBCH channel in the unlicensed spectrum includes A-bit information from higher layers and information related to the physical layer (layer 1), where the information related to layer 1 includes the System Frame Number (SFN), half-frame indication, SSB index, etc.

[0058] JPEG0007610639000001.jpg74170

[0059] JPEG0007610639000002.jpg68170

[0060] JPEG0007610639000003.jpg71170

[0061] In an embodiment of the present application, the PBCH of an SSB received in the unlicensed spectrum may include a first bit field and a second bit field, where the first bit field may correspond to a subcarrier spacing bit field (i.e., subCarrierSpacingCommon) in the PBCH on the licensed spectrum, and the second bit field in the PBCH may correspond to some or all of the bit positions of a subcarrier offset bit field (ssb-SubcarrierOffset) in the PBCH on the licensed spectrum.

[0062] For example, the first bit field may correspond to one bit of subCarrierSpacingCommon, and the second bit field may correspond to some or all of the four or five bits of ssb-SubcarrierOffset.

[0063] It should be understood that the number of bits occupied by each bit field in the PBCH on the licensed spectrum is merely exemplary, and the number of bits occupied by each bit field may be adjusted according to implementation needs and protocol specifications, etc., and the embodiments of the present application are not limited thereto.

[0064] In a communication system based on an unlicensed spectrum, such as an NR-U system, the subcarrier spacing of an SSB is usually the same as the subcarrier spacing of a PDCCH for scheduling SIB1, so in an NR-U system, there is no need to indicate the subcarrier spacing of SIB1, Msg.2 / 4 for initial access, paging message, and broadcast system message by subCarrierSpacingCommon, and they can be directly considered to be the same as the subcarrier spacing of an SSB. Therefore, the first bit field in the PBCH on the unlicensed spectrum corresponding to the subCarrierSpacingCommon may be used to indicate an extended SSB index and at least part of the information of N.

[0065] JPEG0007610639000004.jpg101170

[0066] Taking ssb-SubcarrierOffset as an example, when the PRB rasters of the SSB and non-SSB channels or signals are aligned, in this case, all five bits of the ssb-SubcarrierOffset may be used to indicate at least part of the information of the extended SSB index or N; or when the PRB rasters of the SSB and non-SSB channels or signals use a limited offset, one to four bits of the ssb-SubcarrierOffset may be used to indicate part of the information of the extended SSB index or N, and the other part of the extended SSB index or N may be indicated by other information, such as an idle bit or a DMRS sequence.

[0067] As will be appreciated, the first bit field in the PBCH on the unlicensed spectrum may be referred to as a subCarrierSpacingCommon bit field in some cases, or may be determined by what the first bit field actually indicates, for example, if the first bit field is used to indicate N, the first bit field may be referred to as an N bit field, or if 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, and the embodiments of the present application are not limited thereto.

[0068] Similarly, the second bit field in the PBCH on the unlicensed spectrum may be referred to as an ssb-SubcarrierOffset bit field in some cases, or may be determined by what the second bit field actually indicates, for example, if the second bit field is used to indicate N, the second bit field may be referred to as an N-bit field, or if the second bit field is used to indicate at least a portion of an extended SSB index, the second bit field may be referred to as an extended SSB index bit field, and the embodiments of the present application are not limited thereto.

[0069] Alternatively, in an embodiment of the present application, the extended SSB index may be carried by the first bit field and / or the second bit field in the PBCH.

[0070] For example, if the extended SSB index contains 5-bit information, the first bit field may carry 1 of the 5 bits and the second bit field may carry at least a portion of the remaining 4 of the 5 bits, or the second bit field may carry 2 of the 5 bits and other information, such as idle bits or DMRS signaling, may carry the other of the 5 bits.

[0071] Alternatively, in embodiments of the present application, N may be conveyed by the first bit field and / or the second bit field in the PBCH.

[0072] For example, the N may be conveyed by the first bit field, and assuming the length of the first bit field is 1 bit, the value of N may be determined based on the value of the first bit field, e.g., if the value of the first bit field is 0, N=2 may be determined, and if the value of the first bit field is 1, N=4 may be determined.

[0073] Further, for example, the N may be conveyed by the second bit field, and assuming that the length of the second bit field is 4 bits, the N may be conveyed based on two bits in the second bit field, for example, if the values ​​of the two bits are 00, N=2 may be determined; if the values ​​of the two bits are 01, N=4 may be determined; if the value of the two bits is 10, N=6 may be determined; and if the value of the two bits is 11, N=8 may be determined.

[0074] Further, for example, if N occupies P bits, P1 bits of the P bits may be carried by a first bit field, and other bits of the P bits may be carried by the second bit field or may be carried by idle bits, etc.

[0075] Alternatively, in an embodiment of the present application, the terminal device may determine N based on the DMRS sequence of the PBCH, for example, based on the DMRS sequence of the PBCH and a second correspondence relationship.

[0076] In one embodiment, the second correspondence relationship may be a correspondence relationship between multiple DMRS sequences and multiple values ​​of N, thereby enabling the terminal device to determine the corresponding N based on the DMRS sequence corresponding to the PBCH of the received first SSB.

[0077] In another embodiment, the second correspondence may be a correspondence between a plurality of DMRS sequences and a plurality of combinations of values ​​of N and some bits in the extended SSB index.

[0078] For example, in the second correspondence relationship, the first DMRS sequence indicates that the lowest two binary bits of the extended SSB index are 10 and N is 2, and the second DMRS sequence indicates that the lowest two binary bits of the extended SSB index are 11 and N is 4, so that the terminal device may determine some bits in the corresponding extended SSB index and N based on the DMRS sequence corresponding to the PBCH of the received first SSB. That is, N and some bits in the extended SSB index may be jointly coded to correspond to the DMRS sequence.

[0079] Optionally, in other embodiments, N may be pre-configured or configured by the network device.

[0080] Optionally, in some embodiments, S220 may specifically include: The method may include determining an extended SSB index and / or the N of the first SSB based on a first bit field and / or a second bit field in the PBCH of the first SSB, by referring to a demodulation reference signal (DMRS) sequence of the PBCH and / or a third bit field in the PBCH, and the bit position of the third bit field in the PBCH and the bit position of an idle bit field in the PBCH on the licensed spectrum are partially or completely the same.

[0081] That is, at least one of the first bit field and the second bit field, and at least one of the DMRS sequence and the third bit field may carry part or all of the information of the extended SSB index of the first SSB. At least one of the first bit field and the second bit field, and at least one of the DMRS sequence and the third bit field may carry part or all of the information of N.

[0082] Hereinafter, in combination with specific embodiments, namely Embodiment 1 to Embodiment 3, the conveyance methods of the extended SSB index and N will be specifically described.

[0083] In the following embodiments, it is assumed that the extended SSB index occupies K bits, N occupies P bits, the first bit field is Q bits, the second bit field is M bits, and K, P, Q, and M are positive integers.

[0084] Embodiment 1 The first bit field conveys at least part of the information of the extended SSB index and N.

[0085] In some embodiments, the DMRS sequence may be used to determine some bits in the extended SSB index. Specifically, the DMRS sequence determines K1 bits in the extended SSB index, where K1 < K, and the K1 bits are the lower K1 bits or the upper K1 bits of the K bits in the extended SSB index. Specifically, the DMRS sequence and the K1 bits in the extended SSB index may have a first correspondence relationship, and different DMRS sequences indicate different values of the K1 bits.

[0086] Among the K bits, at least one of the other K - K1 bits may be conveyed by the third bit field or by the first bit field.

[0087] The N may be conveyed by the first bit field, or may be conveyed by the third bit field, or may be conveyed jointly by the first bit field and the third bit field.

[0088] In one specific example, K=5, K1=3, the K1 bits are the lowest three bits of the K bits, and the first bit field is one bit, i.e., Q=1, and as shown in FIG. 6, the DMRS sequence may be used to determine the lowest three bits (B0-B2) of the five bits in the extended SSB index, the third bit field may be used to carry the highest two bits (B3-B4) in the extended SSB index, and the first bit field may indicate N, for example, if the value of the first bit field is 0, N=2 may be determined, and if the value of the first bit field is 1, N=4 may be determined.

[0089] It should be understood that in this embodiment, the length of each of the above bit fields, the number of bits occupied by the extended SSB index and N, and the indication method are merely exemplary, for example, in the embodiment of the present application, some bits in the extended SSB index may be jointly carried by the third bit field and the first bit field, and the embodiment of the present application is not limited thereto.

[0090] Therefore, in an embodiment of the present application, some information of the extended SSB index and N is conveyed by the first bit field (for subCarrierSpacingCommon), which is no longer meaningful in the NR-U system, and the terminal device obtains the information of the extended SSB index and N based on the first bit field, thereby enabling the terminal device to determine the QCL relationship of the SSB based on the information of the extended SSB index and N.

[0091] Example 2 A second bit field carries at least part of the information of the extended SSB index and N.

[0092] According to the above description, in a communication system based on an unlicensed spectrum, by aligning the PRB rasters of SSB and non-SSB channels or by defining an offset of a limited value, some or all of the bits in the ssb-SubcarrierOffset (corresponding to the second bit field) can be saved to convey at least some information of the extended SSB index and N.

[0093] Assume that M1 bits of the M bits in the ssb-SubcarrierOffset can be used to carry at least part of the information of the extended SSB index and N, i.e., the second bit field is M1 bits. Optionally, M can be 4 or 5, and correspondingly, M1 can be 4 or 5, or any one of values ​​1 to 3.

[0094] As an embodiment, the DMRS sequence may be used to determine some bits in the extended SSB index, specifically, the DMRS sequence may be used to determine K1 bits in the extended SSB index, and the specific determination method may refer to the relevant description in the above embodiment, and detailed description is omitted here.

[0095] The other K-K1 bits of the K bits may be carried by the second bit field and / or the third bit field.

[0096] The N may be conveyed by the second bit field and / or the third bit field.

[0097] In one specific example, K=5, K1=3, and the K1 bits are the lowest three bits of the K bits, and as shown in FIG. 7, the DMRS sequence may be used to determine the lowest three bits (B0-B2) of the five bits in the extended SSB index, the third bit field may be used to carry the highest two bits (B3-B4) in the extended SSB index, and the second bit field may be used to carry N, or the second bit field may be used to carry the highest two bits (B3-B4) in the extended SSB index, and the second bit field may be further used to carry N.

[0098] It should be understood that in this embodiment, the length of each of the above bit fields, the number of bits occupied by the extended SSB index and N, and the indication method are merely exemplary, and the embodiment of the present application may convey N by the third bit field, or may jointly convey some bits in the extended SSB index by the third bit field and the second bit field, and the embodiment of the present application is not limited thereto.

[0099] Therefore, in the embodiment of the present application, by aligning the PRB rasters of SSB and non-SSB channels or by defining a limited value offset, it is possible to save some ssb-SubcarrierOffset information (corresponding to the second bit field) and carry some information of the extended SSB index and N. Furthermore, the terminal device obtains the information of the extended SSB index and N based on the second bit field, so that the terminal device can determine the QCL relationship of the SSB based on the information of the extended SSB index and N.

[0100] Example 3 The first bit field and the second bit field carry at least part of the information of the extended SSB index and N.

[0101] In this embodiment 3, by combining the embodiment 1 and the embodiment 2, the extended SSB index and at least part of the information of N may be jointly carried by the first bit field and the second bit field.

[0102] In one embodiment, the DMRS sequence may be used to determine K1 bits in the extended SSB index, and the specific determination method may refer to the relevant description of the above embodiment, and detailed description will be omitted here.

[0103] The first bit field and the second bit field may be used to carry the extended SSB index and at least one of the other K+P-K1 bits in the N K+P bit information.

[0104] Optionally, in some embodiments, if the first and second bit fields are not long enough, the third bit field may also be used to carry at least one of the K+P-K1 bits.

[0105] In one specific example, K=5, K1=3, and P=2, and the K1 bits are the lowest three bits of the K bits. As shown in FIG. 8, the DMRS sequence may be used to determine the lowest three bits (B0 to B2) of the five bits in the extended SSB index, and the third bit field may be used to carry the highest two bits (B3 to B4) in the extended SSB index. The first and second bit fields may carry N, or the second bit field may carry the highest two bits and the third bit field may carry N.

[0106] As should be understood, the above-mentioned extended SSB index and the number of bits occupied by N and the indication method are merely exemplary, and in the embodiments of the present application, the above indication method can be flexibly adjusted based on the number of bits occupied by the extended SSB index and N by referring to the lengths of the first bit field, the second bit field and the third bit field, and the embodiments of the present application are not limited thereto.

[0107] Therefore, in an embodiment of the present application, by conveying some information of the extended SSB index and N by subCarrierSpacingCommon (corresponding to the first bit field) and some or all of the bit fields (corresponding to the second bit field) in ssb-SubcarrierOffset, the number of bits for conveying the information of the extended SSB index and N is further increased, and the terminal device obtains the information of the extended SSB index and N based on the first bit field and the second bit field, thereby allowing the terminal device to determine the QCL relationship of the SSB based on the information of the extended SSB index and N.

[0108] The wireless communication method according to the embodiment of the present application has been described in detail from the terminal device side with reference to Figures 2 to 8 above, but the wireless communication method according to another embodiment of the present application will be described in detail from the network device side with reference to Figure 9 below. As will be understood, the description on the network device side corresponds to the description on the terminal device side, and similar descriptions can be referred to the above description. To avoid duplication, detailed descriptions will be omitted here.

[0109] FIG. 9 is a schematic flowchart of a wireless communication method 300 according to another embodiment of the present application. The method 300 can be performed by a network device in the communication system shown in FIG. 1. As shown in FIG. 9, the method 300 includes: The method includes S310, in which a network device transmits a first synchronization signal block (SSB) to a terminal device in an unlicensed spectrum, and determines a first parameter N for determining an extended SSB index and / or a quasi-coexistence (QCL) relationship of the first SSB based on a first bit field and / or a second bit field in a physical broadcast channel (PBCH) of the first SSB, where N is a positive integer, a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on a licensed spectrum, a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on a licensed spectrum, and the extended SSB index of the first SSB and the N are used by the terminal device to determine a QCL relationship between the first SSB and other SSBs, where N is a positive integer.

[0110] Alternatively, in some embodiments, the extended SSB index of the first SSB is conveyed by a first bit field and / or a second bit field in the PBCH of the first SSB, and a demodulation reference signal (DMRS) sequence of the PBCH and / or a third bit field in the PBCH, and the bit positions of the third bit field in the PBCH are partially or completely the same as the bit positions of an idle bit field in a PBCH on a licensed spectrum.

[0111] Alternatively, in some embodiments, the lower K1 bits of the extended SSB index are carried by a DMRS sequence of the PBCH, the extended SSB index is K bits, K1 and K are positive integers, and K1 is the lowest bit of the extended SSB index. <Kであり、 At least one of the other K-K1 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.

[0112] Optionally, in some embodiments, N is conveyed by subcarrier spacing information and / or subcarrier offset information in the PBCH of the first SSB, and the DMRS sequence of the PBCH and / or idle bits in the PBCH.

[0113] Optionally, in some embodiments, N is conveyed by a DMRS sequence of the PBCH.

[0114] Optionally, in some embodiments, for a DMRS sequence of the PBCH and the first parameter N, the second correspondence is a correspondence between a plurality of DMRS sequences and a plurality of values ​​of the first parameter.

[0115] Optionally, in some embodiments, the second correspondence is a correspondence between a plurality of DMRS sequences and a combination of a plurality of the first parameters and a portion of bits in the extended SSB index.

[0116] Optionally, in some embodiments, the extended SSB index is used to indicate a location index of an actual transmission location of the first SSB among a number of candidate transmission locations.

[0117] Optionally, in some embodiments, N is the number of SSBs actually transmitted by the network device.

[0118] Above, the method embodiment of the present application has been described in detail with reference to Figures 2 to 9, and below, the device embodiment of the present application will be described in detail with reference to Figures 10 to 14. It is understood that the device embodiment corresponds to the method embodiment, and similar descriptions can be referred to the method embodiment.

[0119] 10 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 10, the terminal device 400 includes a communication module 410 and a decision module 420; the communication module 410 is adapted to receive a primary synchronization signal block (SSB) in an unlicensed spectrum; The determination module 420 determines a first parameter N for determining an extended SSB index and / or a quasi-coexistence (QCL) relationship of the first SSB based on a first bit field and / or a second bit field in a physical broadcast channel (PBCH) of the first SSB, where N is a positive integer, a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on a licensed spectrum, and a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on a licensed spectrum; 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.

[0120] Optionally, in some embodiments, the decision module 420 may specifically: Based on the first bit field and / or the second bit field in the PBCH of the first SSB, by referring to a demodulation reference signal (DMRS) sequence of the PBCH and / or a third bit field in the PBCH, determine the extended SSB index and / or the N of the first SSB; The bit position of the third bit field in the PBCH and the bit position of an idle bit field in the PBCH on the licensed spectrum are partially or completely the same.

[0121] Optionally, in some embodiments, the decision module 420 may specifically: Determine K1 low bits of the extended SSB index based on the DMRS sequence of the PBCH by referring to a first correspondence relationship, the first correspondence relationship being a correspondence relationship between a plurality of DMRS sequences and a plurality of the extended SSB indexes, the extended SSB index being K bits, the K1 and K being positive integers, and the K1 low bits are K bits. <Kであることと、 and determining at least one of the other K-K1 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.

[0122] Optionally, in some embodiments, the determination module 420 is further adapted to determine N based on a DMRS sequence of the PBCH.

[0123] As an option, in some embodiments, the determination module 420 is specifically used for determining N by referring to a second correspondence relationship based on the DMRS sequence of the PBCH, where the second correspondence relationship is a correspondence relationship between a plurality of DMRS sequences and a plurality of values ​​of the first parameters.

[0124] Optionally, in some embodiments, the second correspondence is a correspondence between a plurality of DMRS sequences and a combination of a plurality of the first parameters and a portion of bits in the extended SSB index.

[0125] Optionally, in some embodiments, N is pre-configured or configured by a network device.

[0126] Optionally, in some embodiments, the extended SSB index is used to indicate a location index of an actual transmission location of the first SSB among a number of candidate transmission locations.

[0127] Optionally, in some embodiments, N is the number of SSBs actually transmitted by the network device.

[0128] Optionally, in some embodiments, the decision module 420 may specifically: The extended SSB index of the first SSB is used to determine the QCL relationship between the first SSB and other SSBs based on the result of performing a modulo operation on N.

[0129] Optionally, in some embodiments, the determination module 420 further comprises: If the result of the extended SSB index of the second SSB modulo N is equal to the result of the extended SSB index of the first SSB modulo N, this is used to determine that the first SSB and the second SSB have a QCL relationship.

[0130] It is understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device of the method embodiment of the present application, and the above and other operations and / or functions of each unit of the terminal device 400 are respectively for realizing the corresponding process of the terminal device in the method 200 shown in Fig. 5. For the sake of brevity, detailed description is omitted here.

[0131] FIG. 11 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 in FIG. 11 includes a communication module 510, The communication module 510 is used to transmit a first synchronization signal block (SSB) to a terminal device in an unlicensed spectrum, and determine a first parameter N for determining an extended SSB index and / or a quasi-coexistence (QCL) relationship of the first SSB based on a first bit field and / or a second bit field in a physical broadcast channel (PBCH) of the first SSB, where N is a positive integer, a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on a licensed spectrum, a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on a licensed spectrum, and the extended SSB index of the first SSB and the N are used by the terminal device to determine a QCL relationship between the first SSB and other SSBs, where N is a positive integer.

[0132] Alternatively, in some embodiments, the extended SSB index of the first SSB is conveyed by a first bit field and / or a second bit field in the PBCH of the first SSB, and a demodulation reference signal (DMRS) sequence of the PBCH and / or a third bit field in the PBCH, and the bit positions of the third bit field in the PBCH are partially or completely the same as the bit positions of an idle bit field in a PBCH on a licensed spectrum.

[0133] Alternatively, in some embodiments, the lower K1 bits of the extended SSB index are carried by a DMRS sequence of the PBCH, the extended SSB index is K bits, K1 and K are positive integers, and K1 is the lowest bit of the extended SSB index. <Kであり、 At least one of the other K-K1 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.

[0134] Optionally, in some embodiments, N is conveyed by subcarrier spacing information and / or subcarrier offset information in the PBCH of the first SSB, and the DMRS sequence of the PBCH and / or idle bits in the PBCH.

[0135] Optionally, in some embodiments, N is conveyed by a DMRS sequence of the PBCH.

[0136] Optionally, in some embodiments, for a DMRS sequence of the PBCH and the first parameter N, the second correspondence is a correspondence between a plurality of DMRS sequences and a plurality of values ​​of the first parameter.

[0137] Optionally, in some embodiments, the second correspondence is a correspondence between a plurality of DMRS sequences and a combination of a plurality of the first parameters and a portion of bits in the extended SSB index.

[0138] Optionally, in some embodiments, the extended SSB index is used to indicate a location index of an actual transmission location of the first SSB among a number of candidate transmission locations.

[0139] Optionally, in some embodiments, N is the number of SSBs actually transmitted by the network device.

[0140] It is understood that the network device 500 according to the embodiment of the present application may correspond to the network device of the method embodiment of the present application, and the above and other operations and / or functions of each unit of the network device 500 are respectively for realizing the corresponding process of the network device in the method 300 shown in Figure 8. For the sake of brevity, detailed description is omitted here.

[0141] 12 is a structural diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 shown in FIG. 12 includes a processor 610, which can load and execute a computer program from a memory to implement the method of the embodiment of the present application.

[0142] Optionally, as shown in Figure 12, the communication device 600 may further include a memory 620. The processor 610 may read and execute computer programs from the memory 620 to implement the methods of the embodiments of the present application.

[0143] The memory 620 may be a separate device independent of the processor 610 or may be integrated into the processor 610 .

[0144] Optionally, as shown in Fig. 12, the communication device 600 may further include a transceiver 630. The processor 610 may control communication between the transceiver 630 and other devices, in particular to transmit information or data to other devices or to receive information or data transmitted from other devices.

[0145] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, the number of which may be one or more.

[0146] Alternatively, the communication device 600 may specifically be a network device in the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in the methods of the embodiments of the present application, which will not be described in detail here for the sake of brevity.

[0147] Alternatively, the communication device 600 may specifically be a mobile terminal / terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in the methods of the embodiments of the present application, which will not be described in detail here for the sake of brevity.

[0148] 13 is a structural schematic diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG 13 includes a processor 710, which can read and execute computer programs from a memory to implement the method according to the embodiment of the present application.

[0149] Optionally, as shown in Figure 13, the chip 700 may further include a memory 720. The processor 710 may read and execute computer programs from the memory 720 to implement the methods of the embodiments of the present application.

[0150] The memory 720 may be a separate device independent of the processor 710 or may be integrated into the processor 710 .

[0151] Optionally, the chip 700 may further include an input interface 730. The processor 710 may control communication between the input interface 730 and other devices or chips, and may specifically obtain information or data sent from other devices or chips.

[0152] Optionally, the chip 700 may further include an output interface 740. The processor 710 may control communication between the output interface 740 and other devices or chips, and may specifically output information or data to other devices or chips.

[0153] Alternatively, the chip may be applied to the network device of the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application, and for the sake of brevity, detailed description is omitted here.

[0154] Alternatively, the chip may be applied to a mobile terminal / terminal device of the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the methods of the embodiments of the present application. For the sake of brevity, detailed descriptions are omitted here.

[0155] It will be appreciated that the chips referred to in the embodiments herein may also be referred to as system level chips, system chips, chip systems, or systems on chips.

[0156] 14 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in FIG. 14, the communication system 900 includes a terminal device 910 and a network device 920.

[0157] The terminal device 910 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 may be used to implement the corresponding functions implemented by the network device in the above method, which will not be described in detail here for the sake of brevity.

[0158] As can be understood, the processor in the embodiments of the present application may be an integrated circuit chip having signal processing functions. In the process of implementation, each step of the above method embodiment may be performed by an integrated logic circuit of hardware in the processor or by 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), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Each method, step, and logic block disclosed in the embodiments of the present application may be realized or executed. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application may be directly embodied to be performed in a hardware decoding processor, or to be performed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium mature in the field, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads information in the memory and performs the steps of the above-mentioned method in combination with its hardware.

[0159] As will be appreciated, in embodiments of the present application, memory may be volatile or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may 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. Volatile memory may be random access memory (RAM) used as external cache memory. By way of example and not limitation, many types of RAM are available, such as static random access memory (SRAM, Static RAM), dynamic random access memory (DRAM, Dynamic RAM), synchronous dynamic random access memory (SDRAM, Synchronous DRAM), double data rate synchronous dynamic random access memory (DDR SDRAM, Double Data Rate SDRAM), enhanced synchronous dynamic random access memory (ESDRAM, Enhanced SDRAM), Synchlink dynamic random access memory (SLDRAM, Synchlink DRAM), and direct Rambus random access memory (DR RAM, Direct Rambus RAM). As noted, the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0160] It should be understood that the above memories are illustrative and not limiting. For example, the memory of the embodiments of the present application may further include static random access memory (SRAM, static RAM), dynamic random access memory (DRAM, dynamic RAM), synchronous dynamic random access memory (SDRAM, synchronous DRAM), double data rate synchronous dynamic random access memory (DDR SDRAM, double data rate SDRAM), enhanced synchronous dynamic random access memory (ESDRAM, enhanced SDRAM), synch link dynamic random access memory (SLDRAM, synch link DRAM), and direct Rambus random access memory (DR RAM, Direct Rambus RAM), etc. That is, the memory of the embodiments of the present application is intended to include, but is not limited to, these memories and any other suitable types of memory.

[0161] An embodiment of the present application further provides a computer-readable storage medium for use in storing a computer program.

[0162] Alternatively, the computer-readable storage medium may be applied to the network device of the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, detailed description is omitted here.

[0163] Optionally, the computer-readable storage medium may be applied to a mobile terminal / terminal device of the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiments of the present application, and detailed description is omitted here for brevity.

[0164] Embodiments of the present application further provide a computer program product including computer program instructions.

[0165] Alternatively, the computer program product may be applied to the network device of the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application, and detailed descriptions are omitted here for brevity.

[0166] Optionally, the computer program product may be applied to the mobile terminal / terminal device of the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the methods of the embodiments of the present application, and detailed descriptions are omitted here for brevity.

[0167] An embodiment of the present application further provides a computer program.

[0168] Alternatively, the computer program may be applied to the network device of the embodiment of the present application, and when the computer program is executed in the computer, the computer executes the corresponding process implemented by the network device in each method of the embodiment of the present application, and detailed description is omitted here for brevity.

[0169] Alternatively, the computer program may be applied to the mobile terminal / terminal device of the embodiments of the present application, and when the computer program is executed in the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiments of the present application, and detailed description is omitted here for brevity.

[0170] As those skilled in the art can appreciate, each exemplary unit and algorithm step described with reference to the embodiments disclosed herein can be realized in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software is determined by the specific application and design constraints of the technical solution. Those skilled in the art can realize the functions described herein in different ways for each specific application, but such realization should not be considered as going beyond the scope of the present application.

[0171] As can be clearly understood by those skilled in the art, for ease and simplicity of explanation, the specific operating processes of the systems, devices and units described above may refer to the corresponding processes in the above method embodiments, and detailed descriptions thereof will be omitted here.

[0172] In some embodiments of the present application, it is understood that the disclosed system, device and method may be realized in other ways. For example, the device embodiments described above are merely schematic, for example, the distinction between the units is merely a distinction in logical function, and in actual implementation, there may be other distinctions, for example, multiple units or components may be combined or integrated into other systems, or some features may be omitted or not implemented. Meanwhile, the couplings or direct couplings or communication connections between the shown or discussed may be indirect couplings or communication connections by some interfaces, devices or units, which may be electrical, mechanical or other forms.

[0173] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one place or may be distributed across multiple network units. Depending on the actual needs, some or all of the units may be selected to achieve the purpose of the present embodiment.

[0174] In addition, in each embodiment of the present application, each functional unit may be integrated into a single processing unit, each unit may exist physically independently, or two or more units may be integrated into a single unit.

[0175] The functions may be realized in the form of a software functional unit and stored in a single computer-readable storage medium when sold or used as an independent product. Based on this understanding, the essential or prior art part of the technical solution of the present application, or a part of the technical solution, may be embodied in the form of a software product, and the computer software product is stored in a single storage medium containing some instructions for causing a single computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The storage medium includes various media capable of storing program code, such as a USB memory, a portable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0176] The above description is a specific embodiment of the present application, and is not intended to limit the scope of protection of the present application. Any modifications or replacements that a person skilled in the art can easily think of within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be governed by the claims.

Claims

1. 1. A wireless communication method, comprising: A terminal device receives a primary synchronization signal block (SSB) in an unlicensed spectrum, and a physical broadcast channel (PBCH) of the primary SSB includes a first bit field, a second bit field, and an idle bit field; The terminal device determines a first parameter N based on the first bit field and the second bit field, where N is a positive integer, and the first parameter N is used to determine a quasi-coexistence (QCL) relationship; The information carried by the PBCH includes a plurality of bits in a master information block (MIB) from a higher layer, the plurality of bits including a subcarrier spacing bit field, a subcarrier offset bit field, and the idle bit field; 11. The method of claim 10, wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, and the second bit field corresponds to a partial bit of the subcarrier offset bit field in a PBCH on a licensed spectrum.

2. 2. The method of claim 1, wherein the PBCH further comprises a third bit field, and an extended SSB index of the first SSB is determined by a demodulation reference signal (DMRS) sequence of the PBCH and the third bit field, and the third bit field corresponds to some or all bits of an idle bit field in the PBCH on a licensed spectrum.

3. 3. The method according to claim 1 or 2, wherein the extended SSB index is used to indicate a location index of an actual transmission location of the first SSB among a plurality of candidate transmission locations.

4. 2. The method of claim 1 , wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, meaning that a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on the licensed spectrum, and the second bit field corresponds to partial bits of the subcarrier offset bit field in a PBCH on a licensed spectrum, meaning that a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on the licensed spectrum.

5. 1. A wireless communication method, comprising: A network device transmits a first synchronization signal block (SSB) to a terminal device in an unlicensed spectrum, and a physical broadcast channel (PBCH) of the first SSB includes a first bit field, a second bit field, and an idle bit field; determining a first parameter N based on the first bit field and the second bit field, where N is a positive integer, and the first parameter N is used to determine a quasi-coexistence (QCL) relationship; The information carried by the PBCH includes a plurality of bits in a master information block (MIB) from a higher layer, the plurality of bits including a subcarrier spacing bit field, a subcarrier offset bit field, and the idle bit field; 11. The method of claim 10, wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, and the second bit field corresponds to a partial bit of the subcarrier offset bit field in a PBCH on a licensed spectrum.

6. 6. The method of claim 5, wherein the PBCH further comprises a third bit field, and an extended SSB index of the first SSB is determined by a demodulation reference signal (DMRS) sequence of the PBCH and the third bit field, and the third bit field corresponds to some or all bits of an idle bit field in the PBCH on a licensed spectrum.

7. 7. The method according to claim 5 or 6, wherein the extended SSB index is used to indicate a location index of an actual transmission location of the first SSB among a plurality of candidate transmission locations.

8. 6. The method of claim 5, wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, meaning that a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in a PBCH on the licensed spectrum, and the second bit field corresponds to partial bits of the subcarrier offset bit field in a PBCH on a licensed spectrum, meaning that a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in a PBCH on the licensed spectrum.

9. A terminal device comprising: a communication module and a decision module; The communication module is adapted to receive a first synchronization signal block (SSB) in an unlicensed spectrum, and a physical broadcast channel (PBCH) of the first SSB includes a first bit field, a second bit field, and an idle bit field; The determination module is used to determine a first parameter N according to the first bit field and the second bit field, where N is a positive integer, and the first parameter N is used to determine a quasi-coexistence (QCL) relationship; The information carried by the PBCH includes a plurality of bits in a master information block (MIB) from a higher layer, the plurality of bits including a subcarrier spacing bit field, a subcarrier offset bit field, and the idle bit field; The terminal device, characterized in that the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, and the second bit field corresponds to a partial bit of the subcarrier offset bit field in a PBCH on a licensed spectrum.

10. 10. The terminal device of claim 9, wherein the PBCH further includes a third bit field, an extended SSB index of the first SSB is determined by a demodulation reference signal (DMRS) sequence of the PBCH and the third bit field, and the third bit field corresponds to some or all bits of an idle bit field in the PBCH on a licensed spectrum.

11. The terminal device according to claim 9 or 10, wherein the extended SSB index is used to indicate a position index of an actual transmission position of the first SSB among a plurality of candidate transmission positions.

12. 10. The terminal device according to claim 9, wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, meaning that a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in the PBCH on the licensed spectrum, and the second bit field corresponds to a partial bit of the subcarrier offset bit field in a PBCH on a licensed spectrum, meaning that a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in the PBCH on the licensed spectrum.

13. A network device comprising: a communication module; The communication module is used for transmitting a first synchronization signal block (SSB) to a terminal device in an unlicensed spectrum, a physical broadcast channel (PBCH) of the first SSB including a first bit field, a second bit field and an idle bit field, and determining a first parameter N based on the first bit field and the second bit field, where N is a positive integer, and the first parameter N is used to determine a quasi-coexistence (QCL) relationship; The information carried by the PBCH includes a plurality of bits in a master information block (MIB) from a higher layer, the plurality of bits including a subcarrier spacing bit field, a subcarrier offset bit field, and the idle bit field; 11. The network device according to claim 10, wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, and the second bit field corresponds to a partial bit of the subcarrier offset bit field in a PBCH on a licensed spectrum.

14. 14. The network device of claim 13, wherein the PBCH further includes a third bit field, and an extended SSB index of the first SSB is determined by a demodulation reference signal (DMRS) sequence of the PBCH and the third bit field, and the third bit field corresponds to some or all bits of an idle bit field in the PBCH on a licensed spectrum.

15. The network device according to claim 13 or 14, wherein the extended SSB index is used to indicate a location index of an actual transmission location of the first SSB among a plurality of candidate transmission locations.

16. 14. The network device of claim 13, wherein the first bit field corresponds to the subcarrier spacing bit field in a PBCH on a licensed spectrum, meaning that a bit position of the first bit field in the PBCH is the same as a bit position of a subcarrier spacing bit field in the PBCH on the licensed spectrum, and the second bit field corresponds to partial bits of the subcarrier offset bit field in a PBCH on a licensed spectrum, meaning that a bit position of the second bit field in the PBCH is partially or completely the same as a bit position of a subcarrier offset bit field in the PBCH on the licensed spectrum.

Images