WO2022151948A1

WO2022151948A1 - Method for determining initial access parameters in high-band unlicensed spectrum, and related apparatus

Info

Publication number: WO2022151948A1
Application number: PCT/CN2021/141037
Authority: WO
Inventors: 周化雨; 潘振岗
Original assignee: 展讯通信（上海）有限公司
Priority date: 2021-01-15
Filing date: 2021-12-24
Publication date: 2022-07-21
Also published as: CN114765517A; CN114765517B

Abstract

The present application provides a method for determining initial access parameters in a high-band unlicensed spectrum, and a related apparatus. The method comprises: determining the number of subcarrier spacings and/or physical resource blocks (PRBs) of CORESET0. Embodiments of the present application solve the problem that the number of the subcarrier spacings and PRBs of the CORESET0 indicated by an MIB in a high-band unlicensed spectrum cannot meet OCB requirements.

Description

Method and related device for determining initial access parameters in high-frequency unlicensed spectrum

technical field

The present application relates to the technical field of wireless communications, and in particular, to a method and a related device for determining initial access parameters in a high-frequency unlicensed spectrum.

Background technique

At present, the subcarrier spacing and the number of physical resource blocks (Physical Resource Blocks, PRBs) indicated by the Master Information Block (MIB) in the Control Resource Set 0 (Control Resource Set 0, CORESET0) cannot satisfy the unlicensed high frequency band. Occupied Channel Bandwidth (OCB) requirements of the spectrum. Therefore, how to design the subcarrier spacing and the number of PRBs of CORESET0, and how to design the subcarrier spacing and frequency domain position of the initially activated bandwidth part are problems to be solved urgently.

SUMMARY OF THE INVENTION

This application proposes a method and a related device for determining initial access parameters in a high-band unlicensed spectrum, in order to solve the problem that the CORESET0 subcarrier spacing and the number of PRBs indicated by MIB in the high-band unlicensed spectrum cannot meet the OCB requirements.

In the first aspect, an embodiment of the present application provides a method for determining a CORESET0 parameter, including:

Determine the subcarrier spacing and/or the number of PRBs of physical resource blocks of the CORESET0.

It can be seen that, in the embodiment of the present application, the terminal determines that the subcarrier spacing and/or the number of PRBs of CORESET0 can meet the OCB requirement of the high-frequency unlicensed spectrum.

In a second aspect, an embodiment of the present application provides a method for determining a bandwidth part parameter, including:

The subcarrier spacing and/or frequency location of the first type of bandwidth portion is determined.

It can be seen that, in the embodiment of the present application, the subcarrier spacing and/or frequency position of the first type of bandwidth part determined by the terminal can meet the OCB requirement of the high-frequency unlicensed spectrum.

In a third aspect, an embodiment of the present application provides a device for determining CORESET0 parameters, including:

A determining unit, configured to determine the subcarrier spacing and/or the number of PRBs of the CORESET0.

In a fourth aspect, an embodiment of the present application provides an apparatus for determining a bandwidth part parameter, including:

A determining unit, configured to determine the subcarrier spacing and/or the frequency position of the first type of bandwidth part.

In a fifth aspect, embodiments of the present application provide a terminal, a processor, a memory, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, The program includes instructions for performing the steps in the method of the first aspect or the second aspect.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the method in the first aspect or the second aspect. step instruction.

In a seventh aspect, an embodiment of the present application provides a chip, which is used for determining the subcarrier spacing and/or the number of PRBs of the physical resource block of CORESET0.

In an eighth aspect, an embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip is used to determine the subcarrier spacing and/or the number of PRBs of the CORESET0.

In a ninth aspect, an embodiment of the present application provides a chip, where the chip is configured to determine the subcarrier spacing and/or the frequency position of the first type of bandwidth part.

In a tenth aspect, an embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip is used to determine the subcarrier spacing and/or frequency position of the first type of bandwidth portion.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1a is an architectural diagram of a mobile communication system 100 provided by an embodiment of the present application;

Fig. 1b is a schematic diagram of the distribution of candidate SSB positions provided by an embodiment of the present application;

FIG. 1c is a schematic structural diagram of a terminal 120 provided by an embodiment of the present application;

2 is a schematic flowchart of a method for determining a CORESET0 parameter provided by an embodiment of the present application;

3 is a schematic flowchart of a method for determining a bandwidth part parameter provided by an embodiment of the present application;

Fig. 4 is the functional unit composition block diagram of a kind of CORESET0 parameter determination device 4 provided by the embodiment of the present application;

Fig. 5 is the functional unit composition block diagram of another CORESET0 parameter determination device 5 provided by the embodiment of the present application;

6 is a block diagram of functional units of a device 6 for determining a bandwidth part parameter provided by an embodiment of the present application;

FIG. 7 is a block diagram of functional units of another device 6 for determining a bandwidth part parameter provided by an embodiment of the present application.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor a separate or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The embodiments of the present application provide a method and a related device for determining initial access parameters in a high-frequency unlicensed spectrum, and the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Please refer to FIG. 1a. FIG. 1a is a structural diagram of a mobile communication system 100 provided by an embodiment of the present application. The mobile communication system 100 includes a network device 110 on the access network side and a terminal 120 on the user side, and the network device 110 is communicatively connected to the terminal 120 .

The network device 110 is deployed in the wireless access network to provide the terminal 120 with a wireless access function. The network device may be a base station (Base Station, BS). Network device 110 may communicate wirelessly with terminal 120 via one or more antennas. The network device 110 may provide communication coverage for its geographic area. The base stations may include different types such as macro base stations, micro base stations, relay stations, and access points. In some embodiments, a base station may be referred to by those skilled in the art as a base station transceiver, wireless base station, access point, wireless transceiver, Basic Service Set (BSS), Extended Service Set (ESS) ), Node B (NodeB), evolved Node B (evolved NodeB, eNB or eNodeB) or some other appropriate term. Exemplarily, in a 5G system, a base station is called a gNB. For the convenience of description, in this embodiment of the present application, the above-mentioned apparatuses for providing wireless communication functions for the terminal 120 are collectively referred to as network devices.

The terminals 120 may be dispersed throughout the mobile communication system, and each terminal 120 may be stationary or mobile. Terminal 120 may also be referred to by those skilled in the art as mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, user equipment, wireless device, wireless communication device, remote device, mobile subscriber station, receiver. Inbound Terminal, Mobile Terminal, Wireless Terminal, Remote Terminal, Handheld Device, User Agent, Mobile Client, Client, or some other appropriate term. Terminal 120 may be a cellular telephone, Personal Digital Assistant (PDA), wireless modem, wireless communication device, handheld device, tablet computer, laptop computer, cordless telephone, Wireless Local Loop (WLL) Stand and wait. The terminal 120 is capable of communicating with the network device 110 in the mobile communication system.

The network device 110 and the terminal 120 can communicate with each other through an air interface technology, for example, through a cellular technology. The communication link between the network device 110 and the terminal 120 may include downlink (DL) transmission from the network device 110 to the terminal 120, and/or an uplink ( up link, UP) transmission. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions. In some examples, downlink transmissions may include transmissions of discovery signals, which may include reference signals and/or synchronization signals.

As shown in the schematic structural diagram of the terminal 120 shown in FIG. 1c, the terminal 120 provided by the embodiment of the present application includes a processor 121, a memory 122, a communication interface 123, and one or more programs 122a, and the one or more programs 122a are stored In the memory 122, and configured to be executed by the processor 121, the program 122a includes a program for executing the method described in the method embodiment of the present application.

The mobile communication system shown in FIG. 1a may be a long term evolution (Long Term Evolution, LTE) system, or a next-generation evolution system based on an LTE system, such as an LTE-A (LTE-Advanced) system or a fifth generation (5th generation) system. Generation, 5G) system (also known as NR system), may also be a next-generation evolution system based on 5G system, and so on. In the embodiments of the present application, the terms "system" and "network" are often used interchangeably, but those skilled in the art can understand their meanings.

The communication systems and service scenarios described in the embodiments of the present disclosure are for the purpose of illustrating the technical solutions of the embodiments of the present disclosure more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. The evolution of new business scenarios and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

In the conventional LTE system, data transmission is performed between the network device 110 and the terminal 120 through licensed spectrum. With the increase of traffic, especially in some urban areas, the licensed spectrum may be difficult to meet the demand of traffic. By introducing the Licensed-Assisted Access (LAA) technology, data transmission can be performed between the network device 110 and the terminal 120 through the unlicensed spectrum, so as to meet a larger traffic demand.

Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communication. This spectrum is generally considered to be shared spectrum, that is, communication equipment in different communication systems can meet the regulatory requirements set by the country or region on the spectrum. To use this spectrum, there is no need to apply for an exclusive spectrum license from the government. Unlicensed spectrum may also be referred to by those skilled in the art as unlicensed spectrum, shared spectrum, unlicensed band, unlicensed band, shared band, unlicensed spectrum, unlicensed band, or some other appropriate term.

The Third Generation Partnership Project (3GPP) is discussing NR unlicensed technology for communicating using NR technology on unlicensed spectrum. For the NR unlicensed technology, a synchronization signal block (Synchronization Signal Block, SSB) also needs to be sent. In a non-standalone mode, the SSB can be used for synchronization and measurement of the terminal 120, and in a standalone mode, the SSB can also be used for the initial access of the terminal 120.

In Rel-15 NR, the synchronization signal and the broadcast channel form a synchronization signal block, which introduces the function of sweeping the beam. Through the primary synchronization signal (Primary Synchronization Signal, PSS) and the SSS secondary synchronization signal (Secondary Synchronization Signal, SSS), the user equipment obtains the time-frequency synchronization of a cell and obtains the cell ID of the physical layer of the cell. This process is generally called a cell Search (cell search). PSS, SSS and physical broadcast channel (Physical Broadcast Channel, PBCH) form a SS/PBCH block (synchronization signal block). Each sync block has a predetermined time domain location. This time domain position may also be referred to as a candidate synchronization signal block. Multiple sync signal blocks form an SS-burst (sync signal burst). Multiple sync blocks form a sync burst. Multiple synchronization signal bursts form an SS-burst-set (synchronization signal burst set). The time domain positions of the Lmax sync blocks are fixed within a 5ms window. The time domain position indices of the Lmax synchronization signal blocks are arranged consecutively, from 0 to Lmax-1. Therefore, the transmission moment of a synchronization signal block in this 5ms window is fixed, and the index is also fixed. Generally speaking, the base station adopts the beam sweeping method when sending the synchronization signal block, that is, the base station sends the synchronization signal block at different time domain positions through different beams. Accordingly, the user equipment can measure different beams and perceive the Which beam receives the strongest signal.

In the time domain, one SSB occupies 4 symbols (that is, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols), including: 1 symbol Primary Synchronized Signal (PSS), 1 Symbol secondary synchronization signal (Secondary Synchronized Signal, SSS) and 2 symbols Physical Broadcast Channel (Physical Broadcast Channel, PBCH). Within the SSB, symbols are numbered from 0 to 3 in increasing order. In the frequency domain, one SSB occupies 24 consecutive resource blocks (Resource Block, RB). Each RB includes 12 subcarriers, and the subcarriers in the above 24 RBs are numbered from 0 to 287 in increasing order, starting with the lowest numbered RB. For PSS and SSS, the resources are mapped to the middle 127th subcarrier; for PBCH, the resources are mapped to the 288th subcarrier. PSS, SSS, and PBCH have the same cyclic prefix (Cyclic Prefix, CP) length and subcarrier spacing. The subcarrier spacing is configurable to 15kHz, 30kHz, 120kHz and 240kHz.

The network device can use omnidirectional beams to send signals, or can use multiple directional beams to send signals. That is, the number of beams used by the network device may be one or more. In the current NRU (5G NR-U, 5G NewRadio in Unlicensed Spectrum is the 5G air interface operating in the unlicensed frequency band. The frequency spectrum that can be used without the authorization of the competent authority under the conditions of regulatory rules), network equipment can use up to There are 8 directional beams, and generally an even number of directional beams are used. Therefore, the number of beams used by the network device is generally 1, 2, 4, and 8. When the number is 1, the beam used by the network device is an omnidirectional beam, covering a range of 360 degrees, or covering a range less than 360 degrees determined according to the actual environment. When the number is multiple, the beams used by the network device are directional beams, all the beams cover a 360-degree range together, and each beam covers a range of 360/n, where n is the number of beams. For example, when the number of beams is 4, each beam covers 90 degrees.

Since the frequency band used by the NRU is relatively high, the signals are mostly sent by directional beams. When a network device uses directional beams to send signals, in order to cover all cells configured on the network device, the network device needs to use multiple beams in different directions to send the same information in turn, and this process can be called beam scanning.

To support beam scanning, SSBs are organized into a series of bursts and sent periodically. In the case of beam scanning, in each SSB cycle, the network device will use each beam to send SSBs in turn, and multiple SSBs sent in each SSB cycle form a burst, and the multiple SSBs can be numbered in ascending order starting from 0. The number of SSBs in one Burst may be the same as the number of beams used by the network device, and the SSBs in one Burst are respectively transmitted by different beams.

In each SSB period, there are multiple SSB candidate positions, and the SSB candidate positions are the time domain positions where the network device may send the SSB. These SSB candidate positions may be numbered in ascending order starting from 0. Fig. 1b exemplarily shows a schematic diagram of the distribution of SSB candidate positions. As shown in Fig. 1b, taking the subcarrier spacing of 30KHz as an example, there are 20 SSB candidate positions in a half frame (5ms). 1ms includes 2 time slots (slots), each time slot includes 2 SSB candidate positions, thus 20 SSB candidate positions are included in 5ms, these 20 SSB candidate positions are numbered in ascending order from 0, and the 20 candidate positions are obtained. The indices are 0 to 19, respectively.

In NR, generally, a UE is a UE that supports a bandwidth of 100 MHz. During initial access, the UE blindly detects the PSS/SSS/PBCH in the synchronization signal block, and obtains the MIB and time index information carried in the PBCH. The UE obtains the configuration of the CORESET for scheduling SIB1 (which can be called CORESET0) and its search space set (which can be called search space 0 or search space set 0) through the information in the MIB, and then the UE can monitor and schedule Type0 of the PDSCH carrying SIB1 -PDCCH, and decode SIB1. Since the bandwidth of CORESET0 is set through a table in PBCH, the maximum bandwidth of CORESET0 is implicitly defined in the protocol. Further, the protocol stipulates that the frequency domain resources of the PDSCH carrying SIB1 are within the bandwidth (PRBs) of CORESET0, so the maximum bandwidth of the PDSCH carrying SIB1 is also implicitly defined in the protocol. In fact, in the idle state, the UE works in the initial active DL BWP (initial active DL BWP). The frequency domain position can be modified to cover the frequency domain position of CORESET0 through signaling), so the maximum bandwidth of the initial activated downlink BWP is implicitly defined in the protocol.

CORESET and search space set in Rel-15 NR, generally, search space set (search space set) includes properties such as listening timing of PDCCH, search space type, etc. The monitoring timing of the PDCCH includes the period and offset of the monitored time slot level, the start symbol in the time slot, and the like. Search space set is generally bound to CORESET (Control Resource Set, control resource collection). CORESET includes properties such as frequency domain resources and duration (number of symbols) of PDCCH. A PDCCH consists of one or more control channel elements CCEs. A PDCCH consists of n CCEs, then its aggregation level is n. A CCE consists of 6 resource element groups REGs. One REG is equal to one resource block (Resource Block, RB) in one OFDM symbol. The REGs in a CORESET are numbered from small to large in a time-first manner, and number 0 corresponds to the first OFDM symbol and the lowest numbered resource block in the CORESET. A CORESET is associated with a CCE-to-REG mapping. The CCE-to-REG mapping in a CORESET can be interleaved or non-interleaved and is described by REG bundles:

- The i-th REG bundle is defined as REGs, numbered {iL,iL+1,...,iL+L-1}, where L is the number of REG bundles,

and

is the number of REGs in CORESET.

- The jth CCE consists of REG bundles numbered {f(6j/L),f(6j/L+1),...,f(6j/L+6/L-1)}, where f( ) is an interleaver.

For non-interleaved CCE-to-REG mapping, L=6, and f(x)=x.

For interleaved CCE-to-REG mapping, L ∈ {2, 6} for

and

for

The interleaver is defined as:

x=cR+r,

r=0,1,...,R-1,

c=0,1,...,c-1,

where R∈{2,3,6}.

Due to the limited capacity of the PBCH in the SSB, the system information included in the SSB is only a part of the total system information required by the terminal to randomly access the network equipment. This part may include a Master Information Block (MIB), while the terminal Another part of all the system information required to access the network device is contained in the remaining minimum system information RMSI (also referred to as SIB1), the RMSI is periodically sent by the network device, and the RMSI is transmitted through the PDSCH. Therefore, in order to realize the initial access, the terminal also needs to determine the time domain position of the CORESET where the PDCCH associated with the RMSI is located according to the time domain position corresponding to the SSB, and search for the PDCCH associated with the RMSI in the CORESET, and according to the searched PDCCH The control information to obtain the RMSI in PDSCH. After the terminal acquires the system information and RMSI in the SSB, the terminal can access the network according to the system information and the RMSI in the SSB. Here, the PDCCH associated with the RMSI refers to the PDCCH carrying the RMSI control information.

At present, the standardization of the unlicensed spectrum in the low frequency band has been partially completed, and the standardization of the unlicensed spectrum in the high frequency band is in progress. At present, in the unlicensed spectrum, it is often necessary to meet the Occupied Channel Bandwidth (OCB) requirements, that is, for each declared (nominal) channel bandwidth, the physical layer signal/channel transmission needs to occupy at least 70% channel bandwidth. In the high frequency band (eg 52.6GHz-71GHz), the declared typical channel bandwidth may be 2160MHz, and the corresponding 70% channel bandwidth is 1512MHz. In the high frequency band, candidate subcarrier spacings are 120kHz, 240kHz, 480kHz and 960kHz. If the fast Fourier transform FFT size is not changed (such as 4096), and the maximum number of subcarriers in the channel bandwidth (such as 3300) is not changed, the subcarrier spacing of 480kHz or 960kHz can meet the OCB requirements (because 480kHz or 960kHz is multiplied by the subcarrier The number of carriers 3300 can be greater than or equal to 1512MHz), while the subcarrier spacing of 120kHz or 240kHz cannot meet the OCB requirement (because the number of 120kHz or 240kHz multiplied by the number of subcarriers 3300 cannot be greater than or equal to 1512MHz).

In the initial cell search process, the base station indicates the configuration of the control resource set (Control Resource Set 0, CORESET0) through the Master Information Block (Master Information Block, MIB), including the number of physical resource blocks (Physical Resource Block, PRB) of CORESET0 and sub carrier spacing. The number of PRBs in CORESET0 is the same as the number of PRBs in the initial activation bandwidth part, and the subcarrier spacing in CORESET0 is the same as the subcarrier spacing in the initial activation bandwidth part.

It can be seen that the subcarrier spacing and the number of PRBs of CORESET0 indicated by the current MIB cannot meet the OCB requirements of the high-frequency unlicensed spectrum. Therefore, how to design the subcarrier spacing and the number of PRBs of CORESET0 and/or the initially activated bandwidth part is an urgent problem to be solved.

In view of the above problems, the embodiments of the present application provide a method for determining initial access parameters in a high-frequency unlicensed spectrum, which will be described in detail below.

Please refer to FIG. 2. FIG. 2 is a schematic flowchart of a method for determining a CORESET0 parameter provided by an embodiment of the present application, which is applied to the terminal 120 shown in FIG. 1a, and includes the following steps:

Step 201, the terminal determines the subcarrier interval and/or the number of PRBs of the physical resource block of the CORESET0.

In the unlicensed spectrum, 1 bit indicating the subcarrier spacing of CORESET0 is used for other purposes, and the subcarrier spacing of CORESET0 is default. In the unlicensed spectrum of the high frequency band, the subcarrier spacing of CORESET0 is also expected to be the default. In order to meet the OCB requirements, the subcarrier spacing of CORESET0 can be 480kHz or 960kHz by default.

Further, the subcarrier spacing of the synchronization signal block can be preset with a default binding relationship with the subcarrier spacing of CORESET0, so that when the terminal blindly detects the subcarrier spacing of the synchronization signal block or confirms the subcarrier spacing of the synchronization signal block according to the frequency band. , the terminal can determine the subcarrier spacing of CORESET0.

In a possible example, the determining the subcarrier spacing of the CORESET0 includes: determining the subcarrier spacing of the CORESET0 according to the subcarrier spacing of the synchronization signal block.

In this possible example, when the subcarrier spacing of the synchronization signal block is 120 kHz, the subcarrier spacing of the CORESET0 is 480 kHz.

It can be seen that in this example, the system can reuse the existing 120kHz synchronization signal block design.

In this possible example, when the subcarrier spacing of the synchronization signal block is 240 kHz, the subcarrier spacing of the CORESET0 is 960 kHz.

It can be seen that in this example, the system can reuse the existing 240kHz synchronization signal block design.

In a possible example, the determining the number of PRBs of the physical resource block of the CORESET0 includes: determining the number of PRBs of the CORESET0 according to the indication information.

It can be seen that, in this example, the terminal determines the number of PRBs of CORESET0 through the indication information, which can improve flexibility.

In this possible example, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.

It can be seen that in this example, the resource unit that satisfies the CORESET is 6 PRBs, and also satisfies the OCB requirement.

In this possible example, when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz. In this way, the corresponding bandwidth of CORESET0 should be greater than or equal to 1512 MHz, and the number of PRBs of CORESET0 is a multiple of 6.

In this possible example, when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is greater than or equal to 264.

In this possible example, when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz. In this way, the corresponding bandwidth of CORESET0 should be greater than or equal to 1512 MHz, and the number of PRBs of CORESET0 is a multiple of 6.

In this possible example, when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is greater than or equal to 132.

Please refer to FIG. 3. FIG. 3 is a schematic flowchart of a method for determining a bandwidth part parameter provided by an embodiment of the present application, which is applied to the terminal 120 as shown in FIG. 1a, and includes the following steps:

Step 301, the terminal determines the subcarrier spacing and/or the frequency position of the first type of bandwidth part. The frequency position can be the frequency start point and bandwidth, the center frequency point position and bandwidth, or the reference frequency point position and bandwidth. Generally, the frequency position can be represented by the starting point and the number of PRBs, also can be represented by the position and number of the center PRB, and can also be represented by the position and number of reference PRBs.

In a possible example, the first type of bandwidth portion is an initially activated bandwidth portion or a reconfigured initial activated bandwidth portion. Generally speaking, the initially activated bandwidth portion may be the initial activated bandwidth portion configured by the MIB. Generally speaking, the initially activated bandwidth part of the reconfiguration may be the initially activated bandwidth part reconfigured by the SIB1, for example, the reconfiguration is performed by using the public information of the serving cell ServingCellConfigCommonSIB.

In a possible example, the first type of bandwidth portion is a bandwidth portion with a bandwidth portion index of 0 or a bandwidth portion with a reconfigured bandwidth portion index of 0. Generally speaking, the bandwidth portion whose bandwidth portion index is 0 may be the initially activated bandwidth portion configured by SIB1 reconfiguration or other high-layer signaling.

In a possible example, the first type of bandwidth portion is a bandwidth portion whose bandwidth portion index is not 0. Generally speaking, the bandwidth part whose bandwidth part index is not 0 may be a non-initially activated bandwidth part configured by SIB1 or other high-layer signaling. Generally, the bandwidth portion whose bandwidth portion index is not 0 may also be the bandwidth portion whose bandwidth portion index is greater than 0.

In the specific implementation, the terminal can obtain the configuration of the initially activated bandwidth part (or the bandwidth part whose bandwidth part index is 0) through the MIB, and then obtain the system information block 1 (System Information Block 1, SIB1) in the initially activated bandwidth part. Typically, a subcarrier spacing of 120 kHz is used for the initial activation bandwidth portion. In one way, through SIB1, obtain the configuration for reconfiguring the initially activated bandwidth part or the bandwidth part with the bandwidth part index of 0, and switch to reconfigure the initially activated bandwidth part or the bandwidth part with the bandwidth part index of 0. By adopting the above-mentioned way of reconfiguring the initially activated bandwidth part or the bandwidth part whose bandwidth part index is 0 by the SIB1, the system changes are relatively small. In another way, through SIB1, the configuration of the bandwidth part whose bandwidth part index is not 0 is acquired, and the configuration of the bandwidth part whose bandwidth part index is not 0 is switched to. The above-mentioned manner of configuring the bandwidth part of which the index of the bandwidth part is not 0 by the SIB1 has higher flexibility.

In this possible example, the method further includes: after acquiring the SIB1, switching to or activating the first type of bandwidth part.

At present, after acquiring SIB1, the terminal can confirm the new frequency position of the initially activated bandwidth part, but the new frequency position needs to take effect after Msg4 (mainly used in the connected state). In the unlicensed spectrum of the high frequency band, in order to meet the OCB requirements, the effective time of the new frequency location can be advanced after the acquisition of SIB1, so that when the base station sends idle state information such as OSI/RAR/paging, it can also meet the OCB requirements.

In one manner, the first type of bandwidth portion may be a bandwidth portion initially activated for reconfiguration or a bandwidth portion with a bandwidth portion index of 0. This method is suitable for switching to the reconfigured initially activated bandwidth part or the bandwidth part whose index is 0.

In another manner, the bandwidth part of the first type may be a bandwidth part of which the configured bandwidth part index is not 0. This method is suitable for switching to the bandwidth part whose index of the configured bandwidth part is not 0.

In another manner, the first type of bandwidth part may be a reconfigured initial activated bandwidth part or a bandwidth part whose bandwidth part index is 0, or may be a bandwidth part whose configured bandwidth part index is not 0. SIB1 can reconfigure the initially activated bandwidth part or the bandwidth part whose bandwidth part index is 0, and configure the bandwidth part whose bandwidth part index is not 0 at the same time, and then use a field to indicate the bandwidth part that needs to be switched currently, such as indicating the index of the bandwidth part ( For example, the first active downlink bandwidth part-identity identifier firstActiveDownlinkBWP-Id). After acquiring the SIB1, the terminal switches or activates the first type of bandwidth part according to the indicated bandwidth part (or index) to be switched to/or activated.

In this possible example, the method further includes: after acquiring a random access response (Random Access Response, RAR), switching to or activating the first type of bandwidth part.

In this possible example, the method further includes: switching to or activating the first type of bandwidth part after acquiring the paging message or after confirming that the page is paged.

In this possible example, the method further includes: after acquiring the message 4 (Message 4, Msg4), switching to or activating the first type of bandwidth part.

In this possible example, the determining the subcarrier spacing of the first type of bandwidth part includes: determining the subcarrier spacing of the first type of bandwidth part by using SIB1. In this way, the subcarrier spacing of CORESET0 is still configured by MIB, only SIB1 needs to be modified, which simplifies the system.

In this possible example, the determining the subcarrier spacing and the frequency position of the first type of bandwidth part includes: determining the subcarrier spacing and the frequency position of the first type of bandwidth part by using SIB1. In this way, by reconfiguring the subcarrier spacing and frequency position (including bandwidth) of the first type of bandwidth portion, the OCB requirement can be met.

In this possible example, the method further includes: receiving at least one of the following in the first type of bandwidth part: other system information (Other System Information, OSI), a RAR message, and a paging message.

In this possible example, the method further includes: receiving at least one of the following within the first type of bandwidth portion: Msg4.

In this way, the terminal receives SIB1 in the initial activation bandwidth part corresponding to CORESET0, but receives other information in the initial activation bandwidth part reconfigured by SIB1, such as OSI/RAR/Paging/Msg4, etc., which is easy for the base station to transmit signals to meet the OCB requirements.

An embodiment of the present application provides a device for determining a CORESET0 parameter, and the device for determining a CORESET0 parameter may be a terminal. Specifically, the device for determining the CORESET0 parameter is configured to execute the steps performed by the terminal in the above method for determining the CORESET0 parameter. The apparatus for determining CORESET0 parameters provided in the embodiment of the present application may include modules corresponding to corresponding steps.

In the embodiment of the present application, the device for determining CORESETO parameters can be divided into functional modules according to the above-mentioned method example. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. The division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

In the case where each functional module is divided according to each function, FIG. 4 shows a possible schematic structural diagram of the apparatus for determining the CORESET0 parameter involved in the above embodiment. As shown in Figure 4, the device 4 for determining the CORESET0 parameter is applied to the terminal; the device includes:

A determination unit 40, configured to determine the subcarrier spacing and/or frequency position of the CORESET0.

In a possible example, in the aspect of determining the subcarrier spacing of the CORESET0, the determining unit 40 is specifically configured to: determine the subcarrier spacing of the CORESET0 according to the subcarrier spacing of the synchronization signal block.

In a possible example, when the subcarrier spacing of the synchronization signal block is 120 kHz, the subcarrier spacing of the CORESET0 is 480 kHz.

In a possible example, when the sub-carrier spacing of the synchronization signal block is 240 kHz, the sub-carrier spacing of the CORESET0 is 960 kHz.

In a possible example, in the aspect of determining the number of PRBs of the physical resource block of the CORESET0, the determining unit 40 is specifically configured to determine the number of PRBs of the CORESET0 according to the indication information.

In a possible example, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.

In a possible example, when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.

In a possible example, when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is greater than or equal to 264.

In a possible example, when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.

In a possible example, when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is greater than or equal to 132.

In the case of using an integrated unit, a schematic structural diagram of another device for determining CORESET0 parameters provided by an embodiment of the present application is shown in FIG. 5 . In FIG. 5 , the device 5 for determining CORESET0 parameters includes: a processing module 50 and a communication module 51 . The processing module 50 is used to control and manage the actions of the CORESET0 parameter determination device, eg, the steps performed by the determination unit 40, and/or other processes used to perform the techniques described herein. The communication module 51 is used to support the interaction between the device for determining CORESET0 parameters and other devices. As shown in FIG. 5 , the apparatus for determining CORESET0 parameters may further include a storage module 52, and the storage module 52 is used to store program codes and data of the apparatus for determining CORESET0 parameters.

Wherein, the processing module 50 may be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), ASIC, FPGA or other programmable Logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 51 may be a transceiver, an RF circuit, a communication interface, or the like. The storage module 52 may be a memory.

Wherein, all the relevant contents of the scenarios involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here. Both the above-mentioned CORESET0 parameter determination device 4 and CORESET0 parameter determination device 5 can execute the steps performed by the terminal in the above-mentioned CORESET0 parameter determination method shown in FIG. 2 .

An embodiment of the present application provides a device for determining a bandwidth part parameter, and the device for determining a bandwidth part parameter may be a terminal. Specifically, the apparatus for determining a bandwidth part parameter is configured to perform the steps performed by the terminal in the above method for determining a bandwidth part parameter. The apparatus for determining a bandwidth part parameter provided in the embodiment of the present application may include modules corresponding to the corresponding steps.

In this embodiment of the present application, the device for determining the parameters of the bandwidth part may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided into each function, or two or more functions may be integrated into one processing module. . The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. The division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation.

In the case where each functional module is divided according to each function, FIG. 6 shows a possible schematic structural diagram of the apparatus for determining the bandwidth part parameters involved in the above embodiment. As shown in FIG. 6 , the device 6 for determining the parameters of the bandwidth part is applied to the terminal; the device includes:

The determining unit 60 determines the subcarrier spacing and/or the frequency position of the first type of bandwidth part.

In a possible example, the first type of bandwidth portion is an initially activated bandwidth portion or a reconfigured initial activated bandwidth portion.

In a possible example, the first type of bandwidth portion is a bandwidth portion with a bandwidth portion index of 0 or a bandwidth portion with a reconfigured bandwidth portion index of 0.

In a possible example, the first type of bandwidth portion is a bandwidth portion whose bandwidth portion index is not 0.

In a possible example, the apparatus further includes an acquiring unit 61, configured to switch to or activate the bandwidth part of the first type after acquiring the system information block-SIB1.

In a possible example, in the aspect of determining the subcarrier spacing of the first type of bandwidth part, the determining unit 60 is specifically configured to: obtain the subcarrier spacing of the first type of bandwidth part through SIB1.

In a possible example, in terms of determining the subcarrier spacing and frequency position of the first type of bandwidth part, the determining unit 60 is specifically configured to: obtain the subcarrier spacing and frequency of the first type of bandwidth part through SIB1 Location.

In a possible example, the apparatus further includes a receiving unit 62, configured to receive at least one of the following in the first type of bandwidth part: other system information OSI, random access response RAR message, and paging Paging message.

In the case of using an integrated unit, a schematic structural diagram of another apparatus for determining a bandwidth part parameter provided by an embodiment of the present application is shown in FIG. 7 . In FIG. 7 , the device 7 for determining the parameters of the bandwidth part includes: a processing module 70 and a communication module 71 . The processing module 70 is used to control and manage the actions of the device for determining the parameters of the bandwidth part, for example, the steps performed by the determining unit 60, the acquiring unit 61 and the receiving unit 62, and/or other processes for performing the techniques described herein . The communication module 71 is used to support the interaction between the apparatus for determining the parameters of the bandwidth part and other devices. As shown in FIG. 7 , the apparatus for determining the parameters of the bandwidth part may further include a storage module 72, and the storage module 72 is configured to store program codes and data of the apparatus for determining the parameters of the bandwidth part.

Wherein, the processing module 70 may be a processor or a controller, such as a central processing unit (Central Processing Unit, CPU), a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), ASIC, FPGA or other programmable Logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 71 may be a transceiver, an RF circuit, a communication interface, or the like. The storage module 72 may be a memory.

Wherein, all the relevant contents of the scenarios involved in the above method embodiments can be cited in the functional description of the corresponding functional module, which will not be repeated here. Both the device 6 for determining the bandwidth part parameters and the device 7 for determining the bandwidth part parameters can perform the steps performed by the terminal in the method for determining the bandwidth part parameters shown in FIG. 3 .

An embodiment of the present application provides a chip, which is used for determining the subcarrier spacing of CORESET0 and/or the number of PRBs of physical resource blocks.

An embodiment of the present application provides a chip module, including a transceiver component and a chip,

The chip is used to determine the subcarrier spacing of CORESET0 and/or the number of PRBs of physical resource blocks.

An embodiment of the present application provides a chip, which is used for determining the subcarrier spacing and/or the frequency position of the first type of bandwidth part.

An embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip is used to determine the subcarrier spacing and/or frequency position of the first type of bandwidth part.

Regarding each module/unit included in each device and product described in the above-mentioned embodiments, it may be a software module/unit, a hardware module/unit, or a part of a software module/unit and a part of a hardware module/unit . For example, for each device or product applied to or integrated in a chip, each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program. Running on the processor integrated inside the chip, the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it The units/units may all be implemented in hardware such as circuits. Different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented in the form of software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.

The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission by wire or wireless to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media. The semiconductor medium may be a solid state drive.

Embodiments of the present application further provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program causes the computer to execute part or all of the steps of any method described in the above method embodiments , the above computer includes electronic equipment.

Embodiments of the present application further provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of the method embodiments described above. some or all of the steps of the method. The computer program product may be a software installation package, and the computer includes an electronic device.

It should be understood that, in various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.

In the several embodiments provided in this application, it should be understood that the disclosed method, apparatus and system may be implemented in other manners. For example, the device embodiments described above are only illustrative; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included individually, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM for short), Random Access Memory (RAM for short), magnetic disk or CD, etc. that can store program codes medium.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art, without departing from the spirit and scope of the present invention, can easily think of changes or substitutions, and can make various changes and modifications, including the combination of the above-mentioned different functions and implementation steps, including the implementation of software and hardware. The methods are all within the protection scope of the present invention.

Claims

A method for determining CORESET0 parameters of a control resource set, comprising:

Determine the subcarrier spacing and/or the number of PRBs of physical resource blocks of the CORESET0.
The method according to claim 1, wherein the determining the subcarrier spacing of the CORESET0 comprises:

The subcarrier interval of the CORESET0 is determined according to the subcarrier interval of the synchronization signal block.
The method according to claim 2, wherein when the sub-carrier spacing of the synchronization signal block is 120 kHz, the sub-carrier spacing of the CORESET0 is 480 kHz.
The method according to claim 2, wherein when the sub-carrier spacing of the synchronization signal block is 240 kHz, the sub-carrier spacing of the CORESET0 is 960 kHz.
The method according to claim 1, wherein the determining the number of PRBs of the physical resource blocks of the CORESET0 comprises:

According to the indication information, determine the number of PRBs of CORESET0.
The method according to claim 5, wherein the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.
The method according to claim 6, wherein when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.
The method according to claim 7, wherein when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is greater than or equal to 264.
The method according to claim 6, wherein when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.
The method according to claim 9, wherein when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is greater than or equal to 132.
A method for determining a bandwidth part parameter, comprising:

The subcarrier spacing and/or frequency location of the first type of bandwidth portion is determined.
The method according to claim 11, wherein the first type of bandwidth portion is an initially activated bandwidth portion or a reconfigured initial activated bandwidth portion.
The method according to claim 11, wherein the first type of bandwidth part is a bandwidth part with a bandwidth part index of 0 or a reconfigured bandwidth part with an index of 0.
The method according to claim 11, wherein the first type of bandwidth part is a bandwidth part whose bandwidth part index is not 0.
The method according to any one of claims 11-14, wherein the method further comprises:

After acquiring the system information block one SIB1, switch to or activate the bandwidth part of the first type.
The method according to claim 11, wherein the determining the subcarrier spacing of the first type of bandwidth part comprises:

The subcarrier spacing of the first type of bandwidth part is obtained through SIB1.
The method according to claim 11, wherein the determining the subcarrier spacing and frequency position of the first type of bandwidth part comprises:

Obtain the subcarrier spacing and frequency position of the first type of bandwidth part through SIB1.
The method according to any one of claims 11-15, wherein the method further comprises:

At least one of the following is received within the first type of bandwidth portion:

Other system information OSI, random access response RAR message, paging Paging message.
A device for determining CORESET0 parameters, comprising:

A determining unit, configured to determine the subcarrier spacing and/or the number of PRBs of the CORESET0.
The apparatus according to claim 19, wherein, in the aspect of determining the subcarrier spacing of the CORESET0, the determining unit is specifically configured to: determine the subcarrier spacing of the CORESET0 according to the subcarrier spacing of the synchronization signal block interval.
The apparatus according to claim 20, wherein when the sub-carrier spacing of the synchronization signal block is 120 kHz, the sub-carrier spacing of the CORESET0 is 480 kHz.
The apparatus according to claim 20, wherein when the subcarrier spacing of the synchronization signal block is 240 kHz, the subcarrier spacing of the CORESET0 is 960 kHz.
The apparatus according to claim 19, wherein, in the aspect of determining the number of PRBs of the physical resource block of the CORESET0, the determining unit is specifically configured to: determine the number of PRBs of the CORESET0 according to the indication information.
The apparatus according to claim 23, wherein the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.
The apparatus according to claim 24, wherein when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.
The apparatus according to claim 25, wherein when the subcarrier spacing of the CORESET0 is 480 kHz, the number of PRBs of the CORESET0 is greater than or equal to 264.
The apparatus according to claim 24, wherein when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is a multiple of 6, and the corresponding bandwidth is greater than or equal to 1512 MHz.
The apparatus according to claim 27, wherein when the subcarrier spacing of the CORESET0 is 960 kHz, the number of PRBs of the CORESET0 is greater than or equal to 132.
A device for determining a bandwidth part parameter, comprising:

A determining unit, configured to determine the subcarrier spacing and/or the frequency position of the first type of bandwidth part.
The apparatus according to claim 29, wherein the first type of bandwidth portion is an initially activated bandwidth portion or a reconfigured initial activated bandwidth portion.
The apparatus according to claim 29, wherein the first type of bandwidth part is a bandwidth part with a bandwidth part index of 0 or a reconfigured bandwidth part with an index of 0.
The apparatus according to claim 29, wherein the bandwidth part of the first type is a bandwidth part whose bandwidth part index is not 0.
The device according to any one of claims 29-32, wherein the device further comprises:

The acquiring unit is configured to switch to or activate the bandwidth part of the first type after acquiring the system information block one SIB1.
The apparatus according to claim 29, wherein, in the aspect of determining the subcarrier spacing of the first type of bandwidth part, the determining unit is specifically configured to: obtain the subcarrier spacing of the first type of bandwidth part through SIB1 .
The apparatus according to claim 29, wherein, in the aspect of determining the subcarrier spacing and frequency position of the first type of bandwidth part, the determining unit is specifically configured to: obtain the first type of bandwidth part by using SIB1. Subcarrier spacing and frequency location.
The device according to any one of claims 29-35, wherein the device further comprises:

A receiving unit, configured to receive at least one of the following in the first type of bandwidth part:

Other system information OSI, random access response RAR message, paging Paging message.
A terminal, characterized by comprising a processor, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include Instructions for performing steps in the method of any of claims 1-10 or any of claims 11-18.
A computer-readable storage medium, characterized by storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute any one of claims 1-10 or any one of claims 11-18. instructions for the steps in the method described.
A chip, characterized in that:

The chip is used to determine the subcarrier spacing of CORESET0 and/or the number of PRBs of physical resource blocks.
A chip module is characterized in that it includes a transceiver component and a chip,

The chip is used to determine the subcarrier spacing of CORESET0 and/or the number of PRBs of physical resource blocks.
A chip, characterized in that:

The chip is used for determining the subcarrier spacing and/or the frequency position of the first type of bandwidth part.
A chip module is characterized in that it includes a transceiver component and a chip,

The chip is used for determining the subcarrier spacing and/or the frequency position of the first type of bandwidth part.