WO2023002228A1

WO2023002228A1 - Apparatus and method of wireless communication

Info

Publication number: WO2023002228A1
Application number: PCT/IB2021/000516
Authority: WO
Inventors: Hao Lin
Original assignee: Orope France Sarl
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2023-01-26
Also published as: CN115696593A

Abstract

An apparatus and a method of wireless communication are provided. The method by a user equipment (UE) includes receiving one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more reception 5 occasions. This can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

Description

APPARATUS AND METHOD OF WIRELESS COMMUNICATION

BACKGROUND OF DISCLOSURE

1. Field of the Disclosure

[0001] The present disclosure relates to the field of communication systems, and more particularly, to an apparatus and a method of wireless communication, which can provide a good communication performance and/or high reliability.

2. Description of the Related Art

[0002] In an unlicensed band, an unlicensed spectrum is a shared spectrum. Communication equipment in different communication systems can use the unlicensed spectrum as long as the unlicensed meets regulatory requirements set by countries or regions on a spectrum. There is no need to apply for a proprietary spectrum authorization from a government. [0003] In order to allow various communication systems that use the unlicensed spectrum for wireless communication to coexist friendly in the spectrum, some countries or regions specify regulatory requirements that must be met to use the unlicensed spectrum. For example, a communication device follows a listen before talk (LBT) or channel access procedure, that is, the communication device needs to perform a channel sensing before transmitting a signal on a channel. When an LBT outcome illustrates that the channel is idle, the communication device can perform signal transmission; otherwise, the communication device cannot perform signal transmission. In order to ensure fairness, once a communication device successfully occupies the channel, a transmission duration cannot exceed a maximum channel occupancy time (MCOT). LBT mechanism is also called a channel access procedure. In new radio (NR) Release 16, there are different types of channel access procedures, e.g., type 1, type 2A, type 2B and type 2C channel access procedures as described in TS 37.213. [0004] Therefore, there is a need for an apparatus and a method of wireless communication, which can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

SUMMARY

[0005] An object of the present disclosure is to propose an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

[0006] In a first aspect of the present disclosure, a method of wireless communication by a user equipment (UE) comprises receiving one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more reception occasions.

[0007] In a second aspect of the present disclosure, a method of wireless communication by a base station comprises transmitting, to a user equipment (UE), one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more transmission occasions.

[0008] In a third aspect of the present disclosure, a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The transceiver is configured to receive one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more reception occasions.

[0009] In a fourth aspect of the present disclosure, a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver. The transceiver is configured to transmit, to a user equipment (UE), one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more transmission occasions.

[0010] In a fifth aspect of the present disclosure, a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method. [0011] In a sixth aspect of the present disclosure, a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.

[0012] In a seventh aspect of the present disclosure, a computer readable storage medium, in which a computer program is stored, causes a computer to execute the above method.

[0013] In an eighth aspect of the present disclosure, a computer program product includes a computer program, and the computer program causes a computer to execute the above method.

[0014] In a ninth aspect of the present disclosure, a computer program causes a computer to execute the above method.

BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to illustrate the embodiments of the present disclosure or related art more clearly, the following figures will be described in the embodiments are briefly introduced. It is obvious that the drawings are merely some embodiments of the present disclosure, a person having ordinary skill in this field can obtain other figures according to these figures without paying the premise.

[0016] FIG. 1 is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB) of communication in a communication network system according to an embodiment of the present disclosure.

[0017] FIG. 2 is a flowchart illustrating a method of wireless communication performed by a user equipment (UE) according to an embodiment of the present disclosure.

[0018] FIG. 3 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.

[0019] FIG. 4 illustrates an example of a synchronization raster for frequency range according to an embodiment of the present disclosure.

[0020] FIG. 5 illustrates an example of a synchronization raster granularity for frequency range according to an embodiment of the present disclosure.

[0021] FIG. 6 illustrates an example that a starting synchronization raster can be an R15 legacy GSCN within a frequency range according to an embodiment of the present disclosure.

[0022] FIG. 7 illustrates an example of a slot comprising an SSB according to an embodiment of the present disclosure. [0023] FIG. 8 illustrates an example that SSB slots are defined within a half frame according to an embodiment of the present disclosure.

[0024] FIG. 9 illustrates an example of 1 ms duration containing 32 slots according to an embodiment of the present disclosure.

[0025] FIG. 10 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure.

[0026] FIG. 11 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure.

[0027] FIG. 12 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure.

[0028] FIG. 13 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure.

[0029] FIG. 14 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure. [0030] FIG. 15 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.

DETAILED DESCRIPTION OF EMBODIMENTS

[0031] Embodiments of the present disclosure are described in detail with the technical matters, structural features, achieved objects, and effects with reference to the accompanying drawings as follows. Specifically, the terminologies in the embodiments of the present disclosure are merely for describing the purpose of the certain embodiment, but not to limit the disclosure.

[0032] For uplink transmissions or downlink transmissions in a shared spectrum, a user equipment (UE) or a gNB may perform a channel access procedure before transmitting one or more uplink transmissions or one or more downlink transmissions in a channel. The channel access procedure comprises sensing a channel to determine whether the channel is idle or busy. Optionally, a channel access procedure may comprise at least a type 1 channel access according to section 4.2.1.1 of TS37.213, or a type 2A channel access according to section 4.2.1.2.1 of TS37.213, or a type 2B channel access according to section 4.2.1.2.2 of TS37.213, or a type 2C channel access according to section 4.2.1.2.3 of TS37.213.

[0033] FIG. 1 illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., gNB) 20 for transmission adjustment in a communication network system 30 according to an embodiment of the present disclosure are provided. The communication network system 30 includes the one or more UEs 10 and the base station 20. The one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23. The processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.

[0034] The processor 11 or 21 may include application-specific integrated circuit (ASIC), other chipset, logic circuit and/or data processing device. The memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and/or other storage device. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein can be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.

[0035] In some embodiments, the transceiver 13 is configured to receive one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more reception occasions. This can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

[0036] In some embodiments, the transceiver 23 is configured to transmit, to the UE 10, one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more transmission occasions. This can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

[0037] FIG. 2 illustrates a method 200 of wireless communication by a user equipment (UE) according to an embodiment of the present disclosure. In some embodiments, the method 200 includes: a block 202, receiving one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more reception occasions. This can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

[0038] FIG. 3 illustrates a method 300 of wireless communication by a base station according to an embodiment of the present disclosure. In some embodiments, the method 300 includes: a block 302, transmitting, to a user equipment (UE), one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more transmission occasions. This can solve issues in the prior art, provide an SSB design and/or a synchronization raster design for frequency range, provide a good communication performance, and/or provide high reliability.

[0039] In some embodiments, the one or more reception occasions comprise at least one of the followings: a time domain location or a frequency domain location. In some embodiments, the time domain location comprises at least one of the followings: a first slot, a first set of symbols, a second set of symbols, a first slot burst, or a second slot burst. In some embodiments, the first slot is defined within a half frame, and the half frame comprises 5 ms duration. In some embodiments, the half frame comprises a number of slots (X slots), and the number (X) is determined according to a subcarrier spacing (SCS). In some embodiments, the SCS comprises at least one of the followings: 120kHz, 480kHz, 960kHz, or 1920kHz. In some embodiments, the X slots are indexed within the half frame in an ascending order from index 0 to index X- 1. In some embodiments, the first slot comprises 14 symbols, and the symbols are indexed from index 0 to index 13. In some embodiments, the first set of symbols are within the first slot. In some embodiments, the first set of symbols are four consecutive symbols.

[0040] In some embodiments, a first symbol of the first set of symbols is located in symbol index 1 or index 2, and the first symbol is an earliest symbol of the first set of symbols. In some embodiments, the second set of symbols are within the first slot. In some embodiments, the second set of symbols are four consecutive symbols. In some embodiments, a second symbol of the second set of symbols is located in symbol index 8 or index 9, and the second symbol is an earliest symbol of the second set of symbols. In some embodiments, a value of X comprises X=80 when SCS=120 kHz, X=160 when SCS=480 kHz, X=320 when SCS=960 kHz, and X=640 when SCS = 1920 kHz. In some embodiments, the first slot has a slot index (n) depending on an SCS value, and the slot index is at least one of the following index ranges: for SCS=120 kHz, n=0 to 79; for SCS=480 kHz, n=(0~15)+i, where i=0, 20, 40, or 60; for SCS=480 kHz, n=0~63; for SCS=480 kHz, n=(0~7)+i, where i= 0, 10, 20, 30, 40, 50, 60, or 70; for SCS=960 kHz, n=(0~31)+i, where i=0 or 40; for SCS=960 kHz, n=0~63; for SCS=960 kHz, n=(0~15)+i, where i= 0, 10, 20, or 30; for SCS=960 kHz, n=(0~15)+i, where i= 0, 24, 48, or 72. In some embodiments, the first slot burst and/or the second slot burst are within the half frame, the first slot burst comprises a first number of consecutive SSB slots, and the second slot burst comprises a second number of consecutive SSB slots.

[0041] In some embodiments, the first number is equal to or larger than the second number. In some embodiments, an SSB slot is a slot in which there is at least one SSB reception occasion. In some embodiments, the first number is defined according to an SCS value, or the first number is determined according to a target total number of SSB candidates divided by a number of SSB candidates within the SSB slot when there is only one first SSB slot burst within the half frame. In some embodiments, the first number comprises: 8, 16, 32, or 64. In some embodiments, the first slot burst and the second slot burst are consecutive bursts, there are U slots between an end of the first slot burst and a start of the second slot burst, wherein a value of U is defined according to an SCS value. In some embodiments, the value of U comprises 0, 2, 4, 8, or 16. In some embodiments, the frequency domain location comprises a first frequency point and/or a second frequency point. In some embodiments, the first frequency point and the second frequency point are global synchronization channel number (GSCN) points. In some embodiments, the first frequency point and the second frequency point are two consecutive synchronization raster points. In some embodiments, there is a frequency interval between the first frequency point and the second frequency point. In some embodiments, the frequency interval is defined according to an SCS value. [0042] In some embodiments, the frequency interval is larger than 17.28 MHz and smaller than or equal to a first bandwidth. In some embodiments, the first bandwidth is relevant to a transmission bandwidth and/or an SSB bandwidth, and the SSB bandwidth comprises 28.8 MHz with SCS of SSB being 120 kHz, 115.2 MHz with SCS of SSB being 480 kHz, 230.4 MHz with SCS of SSB being 960 kHz, or 460.8 MHz with SCS of SSB being 1920 kHz. In some embodiments, the transmission bandwidth is smaller than or equal to a channel bandwidth, and the channel bandwidth comprises 100 MHz with SCS=120 kHz, 400 MHz with SCS=480 kHz, 960 kHz, or 1920 kHz, or 800 MHz with SCS=480 kHz, 960 kHz, or 1920 kHz. In some embodiments, the transmission bandwidth is a portion of the channel bandwidth. In some embodiments, the portion comprises 95%. In some embodiments, the first bandwidth is at least one of the followings: the transmission bandwidth minus the SSB bandwidth or the transmission bandwidth minus (two times the SSB bandwidth). In some embodiments, the frequency interval is equal to a second bandwidth.

[0043] In some embodiments, the second bandwidth is an integer number times 17.28 MHz. In some embodiments, the integer number comprises an odd number or an even number of a power of 2 number. In some embodiments, the second bandwidth is smaller than or equal to the first bandwidth. In some embodiments, the method further comprises determining a first control resource set (CORESET) location and/or a second CORESET location in a slot, wherein the first CORESET is quasi co-located (QCL’ed) with a first SSB candidate and the second CORESET is QCL’ed with the second SSB candidate. In some embodiments, the first SSB candidate is located in the first set of symbols and the second SSB candidate is located in the second set of symbols. In some embodiments, the first CORESET is QCL’ed with a first SSB candidate, and a demodulation reference signal (DMRS) of a PBCH of the first SSB candidate is QCL’ed type D with a DMRS of the first CORESET. In some embodiments, the second CORESET is QCL’ed with a second SSB candidate, and a DMRS of a PBCH of the second SSB candidate is QCL’ed type D with a DMRS of the second CORESET.

[0044] In some embodiments, the first CORESET location is symbol index 0 of the slot and the second CORESET location is symbol index 7 of the slot. In some embodiments, the first CORESET and/or the second CORESET are associated with a type 0 physical DL control channel (PDCCH) common search space set (CSS). In some embodiments, a physical downlink shared channel (PDSCH) is schedule by a downlink control information (DCI) format transmitted in the type 0 PDCCH CSS. In some embodiments, the PDSCH comprises 1 symbol length. In some embodiments, a starting location of the PDSCH is in a symbol index number 1, 5, 8, or 12 in a slot. In some embodiments, there is a time domain resource allocation table (TDRA) in which there is a row corresponding to a starting position (S) and a PDSCH length (L). In some embodiments, at least one of the followings is met: S= 1 , L= 1 ; or S=5, L= 1 ; or S=8, L= 1 ; or S= 12, L= 1. In some embodiments, the TDRA table is pre-defined.

[0045] FIG. 4 illustrates an example of a synchronization raster for frequency range according to an embodiment of the present disclosure. FIG. 4 illustrates that, in some embodiments, in R15, the synchronization raster is designed for frequency range 2, i.e., from 24.2 GHz up to 100 GHz, where a raster granularity is 17.28 MHz as illustrated in FIG. 1.

[0046] In some embodiments, for a frequency range from 52.6 GHz to 71 GHz, a synchronization raster can be adapted according to a subcarrier spacing (SCS), i.e., SCS=120 kHz, 480 kHz, and 960 kHz, respectively. To this end, the design is based on the SCS and a minimum channel bandwidth (min CBW). In some embodiments, the min CBW for different SCS are as follows: min CBW=100 MHz for SCS=120 kHz, and min CBW=400 MHz for SCS=480 kHz or 960 kHz. Moreover, for a given min CBW, an effective number of RB for the transmissions (or effective transmission BW) is defined. Here some embodiments assume that the effective transmission BW is around 95% of the min CBW, which corresponds to 95 MHz for SCS=120 kHz and 380 MHz for SCS=480 kHz or 960 kHz. It translates to a number of RB: 66 RB for SCS = 120 kHz or 480 kHz, and 33 RB for SCS = 960 kHz, where 1 RB contains 12 subcarriers, each subcarrier has a frequency domain spacing according to an SCS value. [0047] With the above parameters, an upper bound synchronization raster granularity is design according to (the effective transmission BW minus A*SSB BW), where A is an integer and may take value 1 or 2, SSB BW is 28.8 MHz for SCS=120 kHz, 115.2 MHz for SCS = 480 kHz, and 230.4 MHz for SCS=960 kHz. The upper bound raster granularity is calculated below (taking A=1 as an example):

[0048]

0049] Comparing the upper bound synchronization raster granularity with the legacy synchronization raster granularity, it is understood that:

[0050]

0051] In some embodiments, it is assumed that the synchronization raster granularity for frequency range between 52.6 GHz and 71 GHz is an integer multiple of legacy granularity of 17.28 MHz. In some embodiments, a rounding operation is made to have an integer factor, where the rounding operation can round up or round down.

[0052] FIG. 5 illustrates an example of a synchronization raster granularity for frequency range according to an embodiment of the present disclosure. FIG. 5 illustrates that, in some embodiments, for rounding up, the upper bound synchronization raster granularity becomes 4*17.28 MHz for SCS = 120 kHz, 16*17.28 MHz for SCS=480 kHz, and 9* 17.28 MHz for SCS=960 kHz. Thus, the actual synchronization raster granularity can be selected from L* 17.28 MHz, as illustrated in FIG. 5, with L=2 and/or 3 and/or 4 for SCS=120 kHz, L=2 and/or 3 and/or 4 and/or 5 and/or 6 and/or 7 and/or 8 and/or 9 and/or 10 and/or 11 and/or 12 and/or 13 and/or 14 and/or 15 and/or 16 for SCS = 480 kHz, L=2 and/or 3 and/or 4 for 960 kHz. Optionally, the value of L may be restricted to an even integer, in this case, the actual synchronization raster granularity can be selected as L* 17.28MHz, with L=2 and/or 4 for SCS=120kHz, L=2 and/or 4 and/or 6 and/or 8 and/or 10 and/or 12 and/or 14 and/or 16 for SCS = 480kHz, L=2 and/or 4 for 960kHz. Optionally, in some examples, only one value of L is selected for a given SCS. In some embodiments, L comprises an odd number or an even number of a power of 2 number.

[0053] FIG. 6 illustrates an example that a starting synchronization raster can be an R15 legacy GSCN within a frequency range according to an embodiment of the present disclosure. It is to note that a starting synchronization raster can be an R15 legacy GSCN within the frequency range between 52.6GHz and 71GHz as illustrated in FIG. 6.

[0054] In some examples, for the set of GSCN defined for the frequency range between 52.6 GHz and 71 GHz, there is at least one GSCN is used only for shared spectrum or unlicensed spectrum.

[0055] FIG. 7 illustrates an example of a slot comprising an SSB according to an embodiment of the present disclosure. In some examples, a slot comprising SSB is called an SSB slot. The SSB slot comprises 14 symbols, and the SSB slot comprises a first SSB and/or a second SSB, wherein the first SSB comprises 4 consecutive symbols and the second SSB comprises 4 consecutive symbols. As illustrated in FIG. 7, the first SSB is located in the symbol index #1, 2, 3, 4 or #2, 3, 4, 5 of the SSB slot. In some examples, the second SSB is located in symbol index #8, 9, 10, 11 or #9, 10, 11, 12.

[0056] FIG. 8 illustrates an example that SSB slots are defined within a half frame according to an embodiment of the present disclosure. In some examples, the SSB slots are defined within a half frame, which contains 5 ms duration as illustrated in FIG. 8.

[0057] FIG. 9 illustrates an example of 1 ms duration containing 32 slots according to an embodiment of the present disclosure. For SCS = 480 kHz, 1 ms duration contains 32 slots, while for SCS=960 kHz, 1 ms duration contains 64 slots as illustrated in Fig. 6.

[0058] FIG. 10 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure. The SSB slot is defined from the first slot of the first 1 ms of a half frame. In some examples, we can define an SSB slot burst, which contains a set of consecutive SSB slots. As illustrated in FIG. 10, where SSBs are transmitted in 4 consecutive slots (SSB slots), thus the SSB slot burst contains 4 consecutive SSB slots. Between two SSB slot bursts, there are 2 slots in which there is no SSB transmission.

[0059] FIG. 11 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure. In case of SCS=480 kHz, an SSB slot burst may contain 16 SSB slots, and between two consecutive SSB slot bursts, there are 4 slots gap as illustrated in FIG. 11. The total number of SSB slot burst depends on the target total number of SSB candidates within a half frame. For example, if 1 SSB slot contains 2 SSB candidates, as explained in previous examples, and the target total number of SSB candidates is 128, then the number of the SSB slot burst is (target total number of SSB candidates)/(number of SSB slots within an SSB slot burst* number of SSB candidates within an SSB slot) = 128/(16*2) = 4. In this example, the SSB slots are index n, where n=l+(0~15), with 1=0, 20, 40, 60. Note that the slot index is defined within a half frame as illustrated in FIG. 8 and FIG. 9. FIG. 12 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure. FIG. 12 illustrates that, in another example, there is only one SSB slot burst within a half frame and the SSB slot burst comprises M SSB slots. The value of M is calculated as M= target total number of SSB candidates/ number of SSB candidates within an SSB slot. For example, if the target total number of SSB candidates is 128 and there are 2 SSB candidates in one SSB slot, then the value of M=64. In this example, the SSB slots have index n, where n=0~63.

[0060] FIG. 13 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure. Optionally, an SSB slot burst contains 8 SSB slots, and there are 2 slots between 2 consecutive SSB slot bursts as illustrated in FIG. 13. The slots between consecutive SSB slot bursts can be seen as a gap in which the network may schedule urgent uplink transmissions. If the target total number of SSB candidates is 128, there are 8 SSB slots bursts with each SSB slot containing 2 SSB candidates. In this example, the SSB slots are index n, where n=l+(0~7), with 1=0, 10, 20, 30, 40, 50, 60, 70.

[0061] FIG. 14 illustrates an example of an SSB slot burst containing a set of consecutive SSB slots according to an embodiment of the present disclosure. Similar method can be applied for SCS=960 kHz. As illustrated in FIG. 14, for SCS=960 kHz, assuming target total number of SSB candidates within half frame is 128, one example is that the SSB slot burst contains 32 SSB slots with each SSB slot containing 2 SSB candidates. Between two consecutive SSB slot bursts, there are 8 slots. Thus, there are 2 SSB slot bursts, where the SSB slot index in the half frame is n=l+(0~31), where 1=0, 40. Optionally, there are four SSB slot bursts. Between two consecutive SSB slot burst, there are 4 slots, and each SSB slot burst contains 16 SSB slots with each SSB slot containing 2 SSB candidates. The SSB slot index in half frame becomes n=l+(0~15), with 1=0, 20, 40, 60. Optionally, there are four SSB slot bursts. Between two consecutive SSB slot burst, there are 8 slots, and each SSB slot burst contains 16 SSB slots with each SSB slot containing 2 SSB candidates. The SSB slot index in half frame becomes n=l+(0~15), with 1=0, 24, 48, 72. [0062] In some examples, for frequency range between 52.6GHz and 71GHz (denoted as FR2-1), for a half frame with SS/PBCH blocks, the first symbol indexes for candidate SS/PBCH blocks (SSB) are determined according to the SCS of SS/PBCH blocks as follows, where index 0 corresponds to the first symbol of the first slot in a half-frame: { 1,8}+I4*n, or {2,8}+14*n, or { 1,9}+I4*n, or {2,9}+14*n, where n is defined according to the SCS, e.g. For SCS = 480 kHz, n=l+(0~15), with 1=0, 20, 40, 60. Optionally, n=l+(0~7), with 1=0, 10, 20, 30, 40, 50, 60, 70. For SCS = 960 kHz, n=l+(0~31), where 1=0, 40. Optionally, n=l+(0~15), with 1=0, 20, 40, 60. Optionally, n=l+(0~15), with 1=0, 24, 48, 72.

[0063] It is to note that the above examples assume the target total number of SSB candidates within a half frame is 128. When the target number is increased or decreased, the number of SSB slots is increased or decreased accordingly. Further example is not illustrated in this disclosure. In some examples, in an SSB slot, there may be a first SSB and/or a second SSB, wherein the first SSB comprises an SSB index or SSB candidate index. In some examples, the SSB index or the SSB candidate index of the second SSB is an even integer. In some examples, a first CORESEST associated with type 0 PDCCH common search space set (CSS) corresponding to the second SSB is located in the symbol index #0 in the SSB slot. In some examples, the CORESET has length of 1 symbol. In some examples, the second SSB comprises an SSB index or SSB candidate index. In some examples, the SSB index or the SSB candidate index of the second SSB is an odd integer. In some examples, a first CORESEST associated with type 0 PDCCH common search space set (CSS) corresponding to the first SSB is located in the symbol index #7 in the SSB slot. In some examples, the CORESET has length of 1 symbol. In some embodiments, the first CORESET is quasi co-located (QCL’ed) with a first SSB candidate and the second CORESET is QCL’ed with the second SSB candidate. In some embodiments, the first SSB candidate is located in the first set of symbols and the second SSB candidate is located in the second set of symbols. In some embodiments, the first CORESET is QCL’ed with a first SSB candidate, and a demodulation reference signal (DMRS) of a PBCH of the first SSB candidate is QCL’ed type D with a DMRS of the first CORESET. In some embodiments, the second CORESET is QCL’ed with a second SSB candidate, and a DMRS of a PBCH of the second SSB candidate is QCL’ed type D with a DMRS of the second CORESET. In some embodiments, the first CORESET location is symbol index 0 of the slot and the second CORESET location is symbol index 7 of the slot. In some embodiments, the first CORESET and/or the second CORESET are associated with a type 0 physical DL control channel (PDCCH) common search space set (CSS). In some embodiments, a physical downlink shared channel (PDSCH) is schedule by a downlink control information (DCI) format transmitted in the type 0 PDCCH CSS.

[0064] In some examples, the network may schedule a PDSCH by a DCI format transmitted in the type 0 PDCCH CSS, wherein the PDSCH may comprises 1 symbol length and a starting location in symbol index #1, #5, or #8, or #12. This translates to a time domain resource allocation table (TDRA) in which there is a row corresponding to a starting position (S) and a PDSCH length (L) with at least one of the followings: S=l, L=l; or S=5, L=l; or S=8, L=l; or S=12, L=l, wherein the TDRA table is pre-defined.

[0065] Commercial interests for some embodiments are as follows. 1. Solving issues in the prior art. 2. Providing an SSB design and/or a synchronization raster design for frequency range. 3. Providing a good communication performance. 4. Providing a high reliability. 5. Some embodiments of the present disclosure are used by 5G-NR chipset vendors, V2X communication system development vendors, automakers including cars, trains, trucks, buses, bicycles, moto-bikes, helmets, and etc., drones (unmanned aerial vehicles), smartphone makers, communication devices for public safety use, AR/VR device maker for example gaming, conference/seminar, education purposes. Some embodiments of the present disclosure are a combination of “techniques/processes” that can be adopted in 3GPP specification to create an end product. Some embodiments of the present disclosure could be adopted in the 5G NR unlicensed band communications. Some embodiments of the present disclosure propose technical mechanisms. [0066] FIG. 15 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software. FIG. 15 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated. The application circuitry 730 may include a circuitry such as, but not limited to, one or more single-core or multi-core processors. The processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors. The processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.

[0067] The baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi core processors. The processors may include a baseband processor. The baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry. The radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc. In some embodiments, the baseband circuitry may provide for communication compatible with one or more radio technologies. For example, in some embodiments, the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN). Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multi-mode baseband circuitry.

[0068] In various embodiments, the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency. For example, in some embodiments, baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency. The RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium. In various embodiments, the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network. In various embodiments, the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency. For example, in some embodiments, RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.

[0069] In various embodiments, the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry. As used herein, “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality. In some embodiments, the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules. In some embodiments, some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/storage may be implemented together on a system on a chip (SOC). The memory/storage 740 may be used to load and store data and/or instructions, for example, for system. The memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM)), and/or non-volatile memory, such as flash memory.

[0070] In various embodiments, the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system. User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc. Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface. In various embodiments, the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system. In some embodiments, the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit. The positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite. [0071] In various embodiments, the display 750 may include a display, such as a liquid crystal display and a touch screen display. In various embodiments, the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc. In various embodiments, system may have more or less components, and/or different architectures. Where appropriate, methods described herein may be implemented as a computer program. The computer program may be stored on a storage medium, such as a non-transitory storage medium.

[0072] A person having ordinary skill in the art understands that each of the units, algorithm, and steps described and disclosed in the embodiments of the present disclosure are realized using electronic hardware or combinations of software for computers and electronic hardware. Whether the functions run in hardware or software depends on the condition of application and design requirement for a technical plan. A person having ordinary skill in the art can use different ways to realize the function for each specific application while such realizations should not go beyond the scope of the present disclosure. It is understood by a person having ordinary skill in the art that he/she can refer to the working processes of the system, device, and unit in the above-mentioned embodiment since the working processes of the above-mentioned system, device, and unit are basically the same. For easy description and simplicity, these working processes will not be detailed. [0073] It is understood that the disclosed system, device, and method in the embodiments of the present disclosure can be realized with other ways. The above-mentioned embodiments are exemplary only. The division of the units is merely based on logical functions while other divisions exist in realization. It is possible that a plurality of units or components are combined or integrated in another system. It is also possible that some characteristics are omitted or skipped. On the other hand, the displayed or discussed mutual coupling, direct coupling, or communicative coupling operate through some ports, devices, or units whether indirectly or communicatively by ways of electrical, mechanical, or other kinds of forms. The units as separating components for explanation are or are not physically separated. The units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments. Moreover, each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.

[0074] If the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer. Based on this understanding, the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product. Or, one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product. The software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure. The storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other kinds of media capable of storing program codes.

[0075] While the present disclosure has been described in connection with what is considered the most practical and preferred embodiments, it is understood that the present disclosure is not limited to the disclosed embodiments but is intended to cover various arrangements made without departing from the scope of the broadest interpretation of the appended claims.

Claims

What is claimed is:

1. A wireless communication method by a user equipment (UE), comprising: receiving one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more reception occasions.

2. The method of claim 1, wherein the one or more reception occasions comprise at least one of the followings: a time domain location or a frequency domain location.

3. The method of claim 2, wherein the time domain location comprises at least one of the followings: a first slot, a first set of symbols, a second set of symbols, a first slot burst, or a second slot burst.

4. The method of claim 3, wherein the first slot is defined within a half frame, and the half frame comprises 5 ms duration.

5. The method of claim 4, wherein the half frame comprises a number of slots (X slots), and the number (X) is determined according to a subcarrier spacing (SCS).

6. The method of claim 5, wherein the SCS comprises at least one of the followings: 120kHz, 480kHz, 960kHz, or 1920kHz.

7. The method of claim 5 or 6, wherein the X slots are indexed within the half frame in an ascending order from index 0 to index X- 1.

8. The method of any one of claims 3 to 7, wherein the first slot comprises 14 symbols, and the symbols are indexed from index 0 to index 13.

9. The method of any one of claims 3 to 8, wherein the first set of symbols are within the first slot.

10. The method of any one of claims 3 to 9, wherein the first set of symbols are four consecutive symbols.

11. The method of any one of claims 3 to 10, wherein a first symbol of the first set of symbols is located in symbol index 1 or index 2, and the first symbol is an earliest symbol of the first set of symbols.

12. The method of any one of claims 3 to 11, wherein the second set of symbols are within the first slot.

13. The method of any one of claims 3 to 12, wherein the second set of symbols are four consecutive symbols.

14. The method of any one of claims 3 to 13, wherein a second symbol of the second set of symbols is located in symbol index 8 or index 9, and the second symbol is an earliest symbol of the second set of symbols.

15. The method of any one of claims 4 to 14, wherein a value of X comprises X=80 when SCS=120 kHz, X=160 when SCS=480 kHz, X=320 when SCS=960 kHz, and X=640 when SCS = 1920 kHz.

16. The method of any one of claims 3 to 15, wherein the first slot has a slot index (n) depending on an SCS value, and the slot index is at least one of the following index ranges: for SCS=120 kHz, n=0 to 79; for SCS=480 kHz, n=(0~15)+i, where i=0, 20, 40, or 60; for SCS=480 kHz, n=0~63; for SCS^180 kHz, n=(0~7)+i, where i= 0, 10, 20, 30, 40, 50, 60, or 70; for SCS=960 kHz, n=(0~31)+i, where i=0 or 40; for SCS=960 kHz, n=0~63; for SCS=960 kHz, n=(0~15)+i, where i= 0, 10, 20, or 30; for SCS=960 kHz, n=(0~15)+i, where i= 0, 24, 48, or 72.

17. The method of any one of claims 3 to 16, wherein the first slot burst and/or the second slot burst are within the half frame, the first slot burst comprises a first number of consecutive SSB slots, and/or the second slot burst comprises a second number of consecutive SSB slots.

18. The method of claim 17, wherein the first number is equal to or larger than the second number.

19. The method of claim 17 or 18, wherein an SSB slot is a slot in which there is at least one SSB reception occasion.

20. The method of any one of claims 17 to 19, wherein the first number is defined according to an SCS value, or the first number is determined according to a target total number of SSB candidates divided by a number of SSB candidates within the SSB slot when there is only one first SSB slot burst within the half frame.

21. The method of any one of claims 17 to 20, wherein the first number comprises: 8, 16, 32, or 64.

22. The method of any one of claims 17 to 21, wherein the first slot burst and the second slot burst are consecutive bursts, there are U slots between an end of the first slot burst and a start of the second slot burst, wherein a value of U is defined according to an SCS value.

23. The method of claim 22, wherein the value of U comprises 0, 2, 4, 8, or 16.

24. The method of any one of claims 1 to 23, wherein the frequency domain location comprises a first frequency point and/or a second frequency point.

25. The method of claim 24, wherein the first frequency point and the second frequency point are global synchronization channel number (GSCN) points.

26. The method of claim 25, wherein the first frequency point and the second frequency point are two consecutive synchronization raster points.

27. The method of any one of claims 24 to 26, wherein there is a frequency interval between the first frequency point and the second frequency point.

28. The method of claim 27, wherein the frequency interval is defined according to an SCS value.

29. The method of claim 27 or 28, wherein the frequency interval is larger than 17.28 MHz and smaller than or equal to a first bandwidth.

30. The method of claim 29, wherein the first bandwidth is relevant to a transmission bandwidth and/or an SSB bandwidth, and the SSB bandwidth comprises 28.8 MHz with SCS of SSB being 120 kHz, 115.2 MHz with SCS of SSB being 480 kHz, 230.4 MHz with SCS of SSB being 960 kHz, or 460.8 MHz with SCS of SSB being 1920 kHz.

31. The method of claim 29, wherein the transmission bandwidth is smaller than or equal to a channel bandwidth, and the channel bandwidth comprises 100 MHz with SCS=120 kHz, 400 MHz with SCS=480 kHz, 960 kHz, or 1920 kHz, or 800 MHz with SCS=480 kHz, 960 kHz, or 1920 kHz.

32. The method of claim 31, wherein the transmission bandwidth is a portion of the channel bandwidth.

33. The method of claim 32, wherein the portion comprises 95%.

34. The method of any one of claims 29 to 33, wherein the first bandwidth is at least one of the followings: the transmission bandwidth minus the SSB bandwidth or the transmission bandwidth minus (two times the SSB bandwidth).

35. The method of any one of claims 27 to 34, wherein the frequency interval is equal to a second bandwidth.

36. The method of claim 35, wherein the second bandwidth is an integer number times 17.28 MHz.

37. The method of claim 36, wherein the integer number comprises an odd number or an even number of a power of 2 number.

38. The method of claim 35, wherein the second bandwidth is smaller than or equal to the first bandwidth.

39. The method of any one of claims 1 to 38, wherein the method further comprises determining a first control resource set (CORESET) location and/or a second CORESET location in a slot, wherein the first CORESET is quasi co-located (QCL’ed) with a first SSB candidate and the second CORESET is QCL’ed with the second SSB candidate.

40. The method of claim 39, wherein the first SSB candidate is located in the first set of symbols and the second SSB candidate is located in the second set of symbols.

41. The method of claim 37 or 38, wherein the first CORESET is QCL’ed with a first SSB candidate, and a demodulation reference signal (DMRS) of a PBCH of the first SSB candidate is QCL’ed type D with a DMRS of the first CORESET.

42. The method of any one of claims 37 to 39, wherein the second CORESET is QCL’ed with a second SSB candidate, and a DMRS of a PBCH of the second SSB candidate is QCL’ed type D with a DMRS of the second CORESET.

43. The method of any one of claims 39 to 42, wherein the first CORESET location is symbol index 0 of the slot and the second CORESET location is symbol index 7 of the slot.

44. The method of any one of claims 39 to 43, wherein the first CORESET and/or the second CORESET are associated with a type 0 physical DL control channel (PDCCH) common search space set (CSS).

45. The method of any one of claims 1 to 44, wherein a physical downlink shared channel (PDSCH) is schedule by a downlink control information (DCI) format transmitted in the type 0 PDCCH CSS.

46. The method of claim 45, wherein the PDSCH comprises 1 symbol length.

47. The method of claim 43 or 44, wherein a starting location of the PDSCH is in a symbol index number 1, 5, 8, or 12 in a slot.

48. The method of any one of claims 43 to 45, wherein there is a time domain resource allocation table (TDRA) in which there is a row corresponding to a starting position (S) and a PDSCH length (L).

49. The method of claim 48, wherein at least one of the followings is met: S=l, L=l; or S=5, L=l; or S=8, L=l; or S=12, L=l.

50. The method of claim 46 or 47, wherein the TDRA table is pre-defined.

51. A wireless communication method by a base station, comprising: transmitting, to a user equipment (UE), one or more synchronization signal/physical broadcast channel (PBCH) blocks (SSBs) in one or more transmission occasions.

52. The method of claim 51, wherein the one or more transmission occasions comprise at least one of the followings: a time domain location or a frequency domain location.

53. The method of claim 52, wherein the time domain location comprises at least one of the followings: a first slot, a first set of symbols, a second set of symbols, a first slot burst, or a second slot burst.

54. The method of claim 53, wherein the first slot is defined within a half frame, and the half frame comprises 5 ms duration.

55. The method of claim 54, wherein the half frame comprises a number of slots (X slots), and the number (X) is determined according to a subcarrier spacing (SCS).

56. The method of claim 55, wherein the SCS comprises at least one of the followings: 120kHz, 480kHz, 960kHz, or 1920kHz.

57. The method of claim 55 or 56, wherein the X slots are indexed within the half frame in an ascending order from index 0 to index X- 1.

58. The method of any one of claims 53 to 57, wherein the first slot comprises 14 symbols, and the symbols are indexed from index 0 to index 13.

59. The method of any one of claims 53 to 58, wherein the first set of symbols are within the first slot.

60. The method of any one of claims 53 to 59, wherein the first set of symbols are four consecutive symbols.

61. The method of any one of claims 53 to 60, wherein a first symbol of the first set of symbols is located in symbol index 1 or index 2, and the first symbol is an earliest symbol of the first set of symbols.

62. The method of any one of claims 53 to 61, wherein the second set of symbols are within the first slot.

63. The method of any one of claims 53 to 62, wherein the second set of symbols are four consecutive symbols.

64. The method of any one of claims 53 to 63, wherein a second symbol of the second set of symbols is located in symbol index 8 or index 9, and the second symbol is an earliest symbol of the second set of symbols.

65. The method of any one of claims 54 to 64, wherein a value of X comprises X=80 when SCS=120 kHz, X=160 when SCS=480 kHz, X=320 when SCS=960 kHz, and X=640 when SCS = 1920 kHz.

66. The method of any one of claims 53 to 65, wherein the first slot has a slot index (n) depending on an SCS value, and the slot index is at least one of the following index ranges: for SCS=120 kHz, n=0 to 79; for SCS=480 kHz, n=(0~15)+i, where i=0, 20, 40, or 60; for SCS=480 kHz, n=0~63; for SCS^180 kHz, n=(0~7)+i, where i= 0, 10, 20, 30, 40, 50, 60, or 70; for SCS=960 kHz, n=(0~31)+i, where i=0 or 40; for SCS=960 kHz, n=0~63; for SCS=960 kHz, n=(0~15)+i, where i= 0, 10, 20, or 30; for SCS=960 kHz, n=(0~15)+i, where i= 0, 24, 48, or 72.

67. The method of any one of claims 53 to 66, wherein the first slot burst and/or the second slot burst are within the half frame, the first slot burst comprises a first number of consecutive SSB slots, and/or the second slot burst comprises a second number of consecutive SSB slots.

68. The method of claim 67, wherein the first number is equal to or larger than the second number.

69. The method of claim 67 or 68, wherein an SSB slot is a slot in which there is at least one SSB reception occasion.

70. The method of any one of claims 67 to 69, wherein the first number is defined according to an SCS value, or the first number is determined according to a target total number of SSB candidates divided by a number of SSB candidates within the SSB slot when there is only one first SSB slot burst within the half frame.

71. The method of any one of claims 67 to 70, wherein the first number comprises: 8, 16, 32, or 64.

72. The method of any one of claims 67 to 71, wherein the first slot burst and the second slot burst are consecutive bursts, there are U slots between an end of the first slot burst and a start of the second slot burst, wherein a value of U is defined according to an SCS value.

73. The method of claim 72, wherein the value of U comprises 0, 2, 4, 8, or 16.

74. The method of any one of claims 51 to 73, wherein the frequency domain location comprises a first frequency point and/or a second frequency point.

75. The method of claim 74, wherein the first frequency point and the second frequency point are global synchronization channel number (GSCN) points.

76. The method of claim 75, wherein the first frequency point and the second frequency point are two consecutive synchronization raster points.

77. The method of any one of claims 74 to 76, wherein there is a frequency interval between the first frequency point and the second frequency point.

78. The method of claim 77, wherein the frequency interval is defined according to an SCS value.

79. The method of claim 77 or 78, wherein the frequency interval is larger than 17.28 MHz and smaller than or equal to a first bandwidth.

80. The method of claim 79, wherein the first bandwidth is relevant to a transmission bandwidth and/or an SSB bandwidth, and the SSB bandwidth comprises 28.8 MHz with SCS of SSB being 120 kHz, 115.2 MHz with SCS of SSB being 480 kHz, 230.4 MHz with SCS of SSB being 960 kHz, or 460.8 MHz with SCS of SSB being 1920 kHz.

81. The method of claim 79, wherein the transmission bandwidth is smaller than or equal to a channel bandwidth, and the channel bandwidth comprises 100 MHz with SCS=120 kHz, 400 MHz with SCS=480 kHz, 960 kHz, or 1920 kHz, or 800 MHz with SCS=480 kHz, 960 kHz, or 1920 kHz.

82. The method of claim 81, wherein the transmission bandwidth is a portion of the channel bandwidth.

83. The method of claim 82, wherein the portion comprises 95%.

84. The method of any one of claims 79 to 83, wherein the first bandwidth is at least one of the followings: the transmission bandwidth minus the SSB bandwidth or the transmission bandwidth minus (two times the SSB bandwidth).

85. The method of any one of claims 77 to 84, wherein the frequency interval is equal to a second bandwidth.

86. The method of claim 85, wherein the second bandwidth is an integer number times 17.28 MHz.

87. The method of claim 86, wherein the integer number comprises an odd number or an even number of a power of 2 number.

88. The method of claim 85, wherein the second bandwidth is smaller than or equal to the first bandwidth.

89. The method of any one of claims 51 to 88, wherein the method further comprises controlling the UE to determine a first control resource set (CORESET) location and/or a second CORESET location in a slot, wherein the first CORESET is quasi co-located (QCL’ed) with a first SSB candidate and the second CORESET is QCL’ed with the second SSB candidate.

90. The method of claim 89, wherein the first SSB candidate is located in the first set of symbols and the second SSB candidate is located in the second set of symbols.

91. The method of claim 87 or 88, wherein the first CORESET is QCL’ed with a first SSB candidate, and a demodulation reference signal (DMRS) of a PBCH of the first SSB candidate is QCL’ed type D with a DMRS of the first CORESET.

92. The method of any one of claims 87 to 89, wherein the second CORESET is QCL’ed with a second SSB candidate, and a DMRS of a PBCH of the second SSB candidate is QCL’ed type D with a DMRS of the second CORESET.

93. The method of any one of claims 89 to 92, wherein the first CORESET location is symbol index 0 of the slot and the second CORESET location is symbol index 7 of the slot.

94. The method of any one of claims 89 to 93, wherein the first CORESET and/or the second CORESET are associated with a type 0 physical DL control channel (PDCCH) common search space set (CSS).

95. The method of any one of claims 51 to 94, wherein a physical downlink shared channel (PDSCH) is schedule by a downlink control information (DCI) format transmitted in the type 0 PDCCH CSS.

96. The method of claim 95, wherein the PDSCH comprises 1 symbol length.

97. The method of claim 93 or 94, wherein a starting location of the PDSCH is in a symbol index number 1, 5, 8, or 12 in a slot.

98. The method of any one of claims 93 to 95, wherein there is a time domain resource allocation table (TDRA) in which there is a row corresponding to a starting position (S) and a PDSCH length (L).

99. The method of claim 98, wherein at least one of the followings is met: S=l, L=l; or S=5, L=l; or S=8, L=l; or S=12, L=l.

100. The method of claim 96 or 97, wherein the TDRA table is pre-defined.

101. A user equipment (UE), comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to perform the method of any one of claims 1 to 50.

102. A base station, comprising: a memory; a transceiver; and a processor coupled to the memory and the transceiver; wherein the processor is configured to perform the method of any one of claims 51 to 100.

103. A non-transitory machine-readable storage medium having stored thereon instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 100.

104. A chip, comprising: a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the method of any one of claims 1 to 100.

105. A computer readable storage medium, in which a computer program is stored, wherein the computer program causes a computer to execute the method of any one of claims 1 to 100.

106. A computer program product, comprising a computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 100.

107. A computer program, wherein the computer program causes a computer to execute the method of any one of claims 1 to 100.