CN114125999A

CN114125999A - Cell access method and device, and cell broadcasting method and device

Info

Publication number: CN114125999A
Application number: CN202111475189.6A
Authority: CN
Inventors: 韩梦捷
Original assignee: Xingsi Connection Shanghai Semiconductor Co ltd
Current assignee: Xingsi Connection Shanghai Semiconductor Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-03-01
Anticipated expiration: 2041-12-03
Also published as: CN114125999B

Abstract

The application provides a cell access method and a device, and a cell broadcast method and a device, which are applied to the field of communication, wherein in the cell access method, when the searched SSB is a CD-SSB, the cell can be directly tried to be accessed; when the searched SSB is NCD-SSB, the parameter K can be determined based on the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

Description

Cell access method and device, and cell broadcasting method and device

Technical Field

The present application relates to the field of communications, and in particular, to a cell access method and apparatus, and a cell broadcast method and apparatus.

Background

In an initial access procedure of a New Radio interface (NR) of a fifth Generation Mobile Communication Technology (5G), a terminal device searches for a scanning Synchronization Signal and Physical Broadcast Channel Block (SS/PBCH Block, abbreviated as a Synchronization Signal Block SSB) on a predefined Synchronization grid (Synchronization rate) to access a cell and acquires cell information of a target cell within each band (band).

Among them, the SSB may be divided into a Cell definition SSB (Cell definition SSB, CD-SSB) and a non-Cell definition SSB (None Cell definition SSB, NCD-SSB). When the terminal device searches for the NCD-SSB on the Synch reader, the target CD-SSB needs to be found through the NCD-SSB.

In the prior art, when the terminal device searches for the SSB on the Synch scanner, the subcarrier interval of the SSB is generally the same as the subcarrier interval of the Physical Downlink Control Channel (PDCCH) where the Control-Resource Set #0 (core Set #0) is located, and at this time, when the terminal device searches for the NCD-SSB, the terminal device can find the target CD-SSB based on the prior art. However, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH on which the CORESET #0 is located, the terminal device may not find a suitable CD-SSB, thereby increasing the delay of accessing the cell.

Disclosure of Invention

An object of the embodiments of the present invention is to provide a cell access method and apparatus, and a cell broadcast method and apparatus, so as to solve the problem that when a subcarrier interval of an SSB is different from a subcarrier interval of a PDCCH where CORESET #0 is located, a terminal device may not find a suitable CD-SSB, thereby increasing delay of accessing a cell.

In a first aspect, an embodiment of the present application provides a cell access method, including: when a synchronous signal block SSB is searched in a frequency band, determining whether to attempt to initiate cell access according to the searched SSB; wherein: the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. In the above scheme, when the searched SSB is a CD-SSB, the cell access may be directly attempted; when the searched SSB is NCD-SSB, the position of the P where CORESET #0 is located can be determined based on the subcarrier spacing according to the SSBParameter K determined by difference between subcarrier intervals of DCCH_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

In an optional embodiment, the determining whether to attempt to initiate cell access according to the searched SSB includes: when the parameter K is_SSBFall within [0, p ]]When the cell is determined to define a CD-SSB for the cell, demodulating the CD-SSB to try to initiate cell access, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH; when the parameter K is_SSBFall into [ p +1, p +2q ]]Determining that the SSB defines NCD-SSB for a non-cell, determining a target CD-SSB according to the NCD-SSB, demodulating the target CD-SSB to try to initiate cell access, wherein q is a positive integer, and the number of synchronization grids in the frequency band is 256 x (q-1), 256 x q is a positive integer]. In the above scheme, when the parameter K is_SSBThe value falls within [0, p ]]When the cell is accessed, the cell can be directly accessed based on the searched SSB; when parameter K_SSBValues falling within [ p +1, p +2q ]]May be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

In an alternative embodiment, the determining the target CD-SSB from the NCD-SSB comprises: according to the frequency domain position GSCN of the synchronous grid where the NCD-SSB is located_NCD-SSBAnd the frequency domain position offset of the synchronous grid where the target CD-SSB and the NCD-SSB are positioned

Determining a frequency domain location GSCN of a target CD-SSB_CD-SSBWherein, the

According to the parameter K corresponding to the NCD-SSB_SSBDetermining with a parameter PDCCH-configSIB1 configuring a system information block 1; when the parameter K is_SSBWhen p +1+ i, corresponding

Fall into [256 × i +1, 256 × (i +1)]Wherein i is an integer, and i is not less than 0 and not more than q-1; when the parameter K is_SSBWhen p +1+ i + q, the corresponding

Fall into [ -256 × (i +1), - (256 × i +1)]. In the above scheme, when the parameter K is_SSBValues falling within [ p +1, p +2q ]]The frequency domain position GSCNN can be based on NCD-SSB_CD-SSBAnd corresponding frequency domain position offset

Finding the frequency domain position GSCN corresponding to the proper CD-SSB_CD-SSBAnd attempts to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

In an optional embodiment, the value of p is a maximum integer value smaller than 12/j, where j represents a ratio of the SSB to a subcarrier spacing corresponding to the type 0-PDCCH.

In an alternative embodiment, when the subcarrier spacing of the SSB is 480kHz and the subcarrier spacing of the corresponding type0-PDCCH is 120kHz, p is 2 and q is 3.

In an alternative embodiment, when the subcarrier spacing of the SSB is 960kHz and the subcarrier spacing of the corresponding type0-PDCCH is 120kHz, p is 1 and q is 3.

In an alternative embodiment, when the subcarrier spacing of the SSB is 960kHz and the subcarrier spacing of the corresponding type0-PDCCH is 480kHz, p is 5 and q is 3.

In a second aspect, an embodiment of the present application provides a cell broadcast method, including: broadcasting a synchronization signal block SSB within a frequency band, wherein: the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. In the above scheme, after the network device broadcasts the SSB, when the SSB searched by the terminal device is a CD-SSB, the network device may directly attempt to access the cell; when the SSB searched by the terminal device is NCD-SSB, the parameter K may be determined based on a difference between a subcarrier spacing of the SSB and a subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

In an alternative embodiment, when said parameter K is_SSBFall within [0, p ]]When the cell is identified as the SSB, characterizing the SSB as a cell definition CD-SSB, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH; when the parameter K is_SSBFall into + p +1, p +2q]And then, characterizing the SSB to define NCD-SSB for the non-cell, wherein q is a positive integer, and the number of the synchronization grids in the frequency band is 256 x (q-1) and 256 x q]. In the above scheme, when the parameter K is_SSBThe value falls within [0, p ]]When the cell is accessed, the characterization terminal equipment can directly try to access the cell based on the searched SSB; when parameter K_SSBValues falling within [ p +1, p +2q ]]The characterization of the terminal device may be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal device can find the proper CD-SSB through the configuration,thereby reducing the delay of accessing the cell.

In an alternative embodiment, when said parameter K is_SSBWhen p +1+ i, corresponding

Fall into [256 × i +1, 256 × (i +1)]Wherein i is an integer and 0. ltoreq. i.ltoreq. q-1,

representing the frequency domain position offset of a synchronous grid where the target CD-SSB and the NCD-SSB are located; when the parameter K is_SSBWhen p +1+ i + q, the corresponding

Finding the frequency domain position GSCN corresponding to the proper CD-SSB_CD-SSBAnd attempts to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

In a third aspect, an embodiment of the present application provides a cell access apparatus, including: the device comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining whether to try to initiate cell access according to a searched SSB when the SSB is searched in a frequency band; wherein: the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. In the above scheme, when the searched SSB is a CD-SSB, the cell access may be directly attempted; when the searched SSB is NCD-SSB, the parameter K can be determined based on the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

In a fourth aspect, an embodiment of the present application provides a cell broadcasting apparatus, including: a broadcasting module for broadcasting a synchronization signal block SSB within a frequency band, wherein: the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. In the above scheme, after the network device broadcasts the SSB, when the SSB searched by the terminal device is a CD-SSB, the network device may directly attempt to access the cell; when the SSB searched by the terminal device is NCD-SSB, the parameter K may be determined based on a difference between a subcarrier spacing of the SSB and a subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

In a fifth aspect, an embodiment of the present application provides an electronic device, including: a processor, a memory, and a bus; the processor and the memory are communicated with each other through the bus; the memory stores computer program instructions executable by the processor, the processor invoking the computer program instructions to enable performance of the cell access method of any of the first aspects or the cell broadcast method of any of the second aspects.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium, which stores computer program instructions, and when the computer program instructions are executed by a computer, the computer executes the cell access method according to any one of the first aspect or the cell broadcast method according to any one of the second aspect.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a block diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flowchart of a cell access method according to an embodiment of the present application;

fig. 3 is a schematic diagram of RE level offsets of an SSB and a type0-PDCCH according to an embodiment of the present application;

fig. 4 is a schematic diagram of RE level offsets of an SSB and a type0-PDCCH according to an embodiment of the present application;

fig. 5 is a schematic diagram of RE level offsets of an SSB and a type0-PDCCH according to an embodiment of the present application;

fig. 6 is a block diagram of a cell access apparatus according to an embodiment of the present disclosure;

fig. 7 is a block diagram of a cell broadcasting apparatus according to an embodiment of the present application;

fig. 8 is a block diagram of an electronic device according to an embodiment of the present disclosure.

Detailed Description

Before describing the method provided by the embodiments of the present application, some concepts related to the embodiments of the present application are described below:

each Global Synchronization Channel Number (GSCN) corresponds to a frequency domain position in the sync filter, please refer to table 1, where table 1 shows the corresponding relationship between each GSCN and the frequency domain position. It can be seen that according to the third column in table 1, GSCNs corresponding to different frequency domain positions can be calculated.

TABLE 1 correspondence of each GSCN to frequency domain location

SSBs can be divided into CD-SSBs and NCD-SSBs, wherein the CD-SSBs are mainly used for initial access of a cell and include System Information Block 1 (SIB 1) Information of the access cell; while NCD-SSB is mainly used in other situations than initial access of a cell, such as: measurement, and the like. When an operator deploys an SSB, the NCD-SSB and the CD-SSB are typically deployed together on the Synch reader. Therefore, when the terminal device searches for the SSB on the Synch reader, there is a certain probability that the searched SSB is NCD-SSB, and since the NCD-SSB does not include the SIB1 information for accessing the target cell, the terminal device needs to find the target CD-SSB through the NCD-SSB.

The SSB includes a Master Information Block (MIB) and a Physical Broadcast Channel (PBCH) payload (payload).

The MIB is transmitted via PBCH, and includes parameters such as system Frame Number (system Frame Number), sub-Carrier Spacing (sub-Carrier Spacing como), sub-Carrier Offset parameter (ssb-sub-Carrier Offset), dmrs-type a Position (dmrs-type a-Position), and configuration parameter (PDCCH-configuration SIB1) of system information block 1 of Physical Downlink Control Channel (PDCCH).

Wherein SSB-Subcarrier Offset represents the Offset (Offset) of Resource Element-level (RE-level) between SSB and CORESET #0, and can be defined by parameter K_SSBAnd (4) showing. According to different configurations, when the terminal device demodulates the parameter K_SSBWhen the value is greater than or equal to the first value and less than the second value, it may indicate that the SSB is NCD-SSB, i.e., cannot be used for initial access of the cell. At this time, the terminal device may determine the offset of GSCN between the SSB (NCD-SSB) and the target SSB (CD-SSB) according to two parameters, namely, Control Resource Set 0(Control Resource Zero) and Search Space 0(Search Space Zero) in the pdcch-config SIB1 in the MIB

Taking table 2 as an example, table 2 shows a GSCN offset relationship, when the terminal device demodulates the parameter K_SSBWhen the number is a number of 12 or more and less than 14, the SSB can be represented as NCD-SSB. For example, when the parameter K_SSBWhen the configuration is 12, the control Resource Set Zero is configured to 0000 and the search Space Zero is configured to 0001 (when 16 × control Resource Set Zero + search Space Zero is configured to 1), the offset of GSCN between the target SSB (CD-SSB) and the SSB (NCD-SSB) can be determined

TABLE 2 GSCN offset relationship

And the PBCH payload is mainly formed in the physical layer, and occupies 8 bits for representing the system frame number, the field indication, the candidate SSB index, and the like.

A cell generally refers to a range that can be covered by a signal of a network device.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long term evolution (Long term evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

Referring to fig. 1, fig. 1 is a block diagram of a communication system according to an embodiment of the present disclosure, where the communication system 100 may include a network device 101 and a terminal device 102, where the network device 101 is communicatively connected to the terminal device 102.

In particular, network device 101 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. It is understood that the network device 101 provided in the embodiments of the present application may have different forms in different communication systems.

As an implementation, the Network device 101 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a Radio controller in a Cloud Radio Access Network (CRAN); as another embodiment, the network device 101 may be a network-side device in a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a 5G network, and the like.

The terminal device 102 may be a device located within the coverage of the network device 101. Similar to the network device 101, it can be understood that the terminal device 102 provided in the embodiment of the present application may have different forms in different usage scenarios. For example, the terminal device 102 may be a handheld device with wireless communication function, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, and the like.

The present application is not limited to a specific communication method between the network device 101 and the terminal device 102. As an embodiment, the network device 101 and the terminal device 102 may use a wired communication manner, for example: the network device 101 and the terminal device 102 are connected by a Digital Subscriber Line (DSL), a Digital cable, a cable connection, and the like; as another embodiment, the network device 101 and the terminal device 102 may use a wireless communication mode, for example: connected through a cellular Network, a Wireless Local Area Network (WLAN), an Internet of Things (IoT), and the like.

In the embodiment of the present application, the number of the network devices 101 and the number of the terminal devices 102 in the communication system 100 are not specifically limited. As an embodiment, the number of the network devices 101 may be one or more; as another embodiment, the number of the terminal apparatuses 102 may be one or more.

When the number of network devices 101 is one, the communication system 100 may include one or more terminal devices 102 within the coverage of the network devices 101; when the number of the network devices 101 is multiple, one or more terminal devices 102 located in the coverage area of each network device 101 may also be provided, and the terminal devices 102 in the coverage areas of multiple network devices 101 may overlap, that is, a certain terminal device 102 may be located in the coverage areas of multiple network devices 101 at the same time.

Further, the communication system 100 provided in this embodiment may further include other network entities such as a network controller, a mobility management entity, and the like, which are not specifically described in this embodiment.

Based on the communication system 100, the embodiment of the present application provides a cell access method applied to the terminal device 102 and a cell broadcast method applied to the network device 101. The above two methods will be described in detail in turn.

Please refer to fig. 2, fig. 2 is a flowchart of a cell access method provided in an embodiment of the present application, where the cell access method may include the following steps:

step S201: and when the SSB is searched in the frequency band, determining whether to attempt to initiate cell access according to the searched SSB.

Specifically, after the terminal device is powered on, it needs to access the cell, so that the terminal device can sequentially search each frequency domain position in the frequency band according to a certain sequence to receive the SSB corresponding to the frequency domain position. When the terminal device searches for the SSB in the frequency band, it may determine whether to attempt to access the cell according to the SSB.

After the terminal device searches the SSB, the SSB may be analyzed. During the parsing process, the parameter K can be focused_SSBBy this parameter, it can be determined whether the SSB is CD-SSB or NCD-SSB.

It can be understood that, when the SSB is determined to be a CD-SSB, the terminal device may directly attempt to access the cell; when the SSB is judged to be CD-SSB, the terminal equipment can be based on NCD-SSB and the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell.

It should be noted that, in the embodiment of the present application, the minimum frequency value of the frequency band is not less than 52.6GHz, and the SSB is different from the subcarrier spacing of the corresponding type 0-PDCCH. Wherein, the parameter K_SSBThe value of (c) can be configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. In other words, the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the type0-PDCCH results in the parameter K_SSBThe difference in (c).

For example, when the SSB has a subcarrier spacing of 480kHz and the corresponding type0-PDCCH has a subcarrier spacing of 120kHz, the parameter K can be set_SSBIs configured to: when K is_SSBValue of [0, 2]When SSB is CD-SSB; when K is_SSBValue of [3, 8]When the SSB is NCD-SSB.

It is understood that in some embodiments, the subcarrier spacing of the SSB is equal to that of the type0-PDCCH, but in the present embodiment, the subcarrier spacing of the SSB is not equal to that of the PDCCH in which CORESET #0 is located.

In the above scheme, when the searched SSB is a CD-SSB, the cell access may be directly attempted; when the searched SSB is NCD-SSB, the parameter K can be determined based on the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

Further, the step of determining whether to attempt to initiate cell access according to the searched SSB may specifically include the following steps:

when parameter K_SSBFall within [0, p ]]Then, the SSB is determined to be a CD-SSB, which is demodulated to attempt to initiate cell access.

When parameter K_SSBFall into [ p +1, p +2q ]]And when the target CD-SSB is determined to be the NCD-SSB, the target CD-SSB is determined according to the NCD-SSB, and the target CD-SSB is demodulated to try to initiate cell access.

Specifically, it can be seen from the above embodiments that the parameter K_SSBThe value of (c) can be configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. As an embodiment, the parameters may beK_SSBIs configured to: when K is_SSBValue of [0, p]When the SSB is a CD-SSB, the terminal equipment can directly try to access the cell; when K is_SSBThe values [ p +1, p +2q]When the SSB is NCD-SSB, the terminal device can be based on the NCD-SSB and the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell.

It should be noted that p and q are positive integers, and the value of p can also be determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH; meanwhile, the number of synchronization grids in the frequency band is (256 × (q-1), 256 × q).

In the above scheme, when the parameter K is_SSBThe value falls within [0, p ]]When the cell is accessed, the cell can be directly accessed based on the searched SSB; when parameter K_SSBValues falling within [ p +1, p +2q ]]May be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

Further, the step of determining the target CD-SSB according to the NCD-SSB may specifically include the following steps:

according to the frequency domain position GSCN of the synchronous grid where the NCD-SSB is positioned_NCD-SSBAnd the frequency domain position offset of the synchronous grid where the target CD-SSB and the NCD-SSB are located

Determining a frequency domain location GSCN of a target CD-SSB_CD-SSB。

In particular, when the parameter K is_SSBValues falling within [ p +1, p +2q ]]May be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Wherein, the terminal device can search the parameter K in the NCD-SSB_SSBAnd configuring a parameter PDCCH-configSIB1 of the system information block 1 to search the frequency domain position GSCN of the synchronous grid where the NCD-SSB is positioned_NCD-SSBThen according to the GSCN_NCD-SSBAnd the frequency domain position offset of the synchronous grid where the target CD-SSB and the NCD-SSB are located

Determining a frequency domain location GSCN of a target CD-SSB_CD-SSB。

As an implementation manner, the frequency domain position GSCN of the synchronization grid where the NCD-SSB is located can be used_NCD-SSBFrequency domain position offset from the synchronization grid on which the target CD-SSB and NCD-SSB are located

Adding to obtain the frequency domain position GSCN of the target CD-SSB_CD-SSB. Namely:

in addition, when the parameter K is_SSBWhen p +1+ i, it corresponds to

Fall into [256 × i +1, 256 × (i +1)](ii) a And when the parameter K_SSBWhen p +1+ i + q, it corresponds to

Fall into [ -256 × (i +1), - (256 × i +1)]. Wherein i is an integer, and i is not less than 0 and not more than q-1.

In the above scheme, when the parameter K is_SSBValues falling within [ p +1, p +2q ]]The frequency domain position GSCN can be based on NCD-SSB_NCD-SSBAnd corresponding frequency domain position offset

It is understood that when it is determined that the searched CD-SSB is a CD-SSB or a corresponding CD-SSB is found according to the searched NCD-SSB, the terminal device may not access the corresponding cell based on the CD-SSB due to signal strength and the like. That is, the terminal device may first attempt to access the cell, and if the access fails, continue to search for other frequency domain locations.

Further, as an embodiment, the value of p may be a maximum integer value smaller than 12/j, where j represents a ratio of the SSB to the subcarrier spacing of the corresponding type 0-PDCCH.

The cell access method provided in the above embodiment is described below by way of example.

For example, with the subcarrier spacing of the searched SSB being 480kHz and the subcarrier spacing of the corresponding type0-PDCCH being 120kHz, please refer to fig. 3, where fig. 3 is a schematic diagram of RE level offsets of the SSB and type0-PDCCH provided in this embodiment of the present application.

As can be seen from fig. 3, the subcarrier spacing of the SSB is 4 times that of the type0-PDCCH, and since RE level offset is shifted in units of the subcarrier spacing of the SSB, in this case, the offset of RE level between the SSB and the type0-PDCCH may be 0, 1 or 2, and p is 2.

At this time, only the parameter K needs to be used_SSBRepresents, for example: the lowest two bits (LSB of Subcarrier Offset). Thus, parameter K_SSBMay be configured to: when K is_SSBValue of [0, 2]When SSB is CD-SSB; when K is_SSBValue of [3, 8]When the SSB is NCD-SSB. That is, p is 2 and q is 3. Based on this, at parameter K_SSBIf the number of bits occupied is constant (e.g., 4 bits), the parameter K_SSBThe value of (2) can be flexibly configured according to the combination of the subcarrier intervals corresponding to the SSB and the type0-PDCCH and the number of the synchronization grids so as to carry out flexible configuration on the type of the SSB and the NCD-SSB

The correspondence between them is indicated.

When the minimum frequency value of the frequency band is not less than 52.6GHz, the number of Synch brakes in the frequency band is greater than 256, for example, for the frequency band range of 52.6GHz-71GHz, since the number of Synch brakes in the frequency band range is greater than 256 and cannot exceed 665, when q is 3, the value range of the GSCN offset can be increased to-768 to 768 on the basis of the above embodiment.

Referring to table 3, table 3 shows a GSCN offset relationship. When K is_SSBValue of [3, 8]When the SSB is NCD-SSB. When K is_SSBWhen the value is 3 (i.e. when i is 0), the corresponding ones are

Fall into [1, 256 ]](ii) a When K is_SSBWhen the value is 4 (i.e. when i is 1), the corresponding ones

Falls in [257, 512 ]](ii) a When K is_SSBWhen the value is 5 (i.e. when i is 2), the corresponding ones are

Falls in [513, 768 ]](ii) a When K is_SSBWhen the value is 6 (i.e. when i is 0), the corresponding one is

Fall into [ -256, -1 ] values](ii) a When K is_SSBWhen the value is 7 (i.e. when i is 1), the corresponding ones are

Fall into the values of [ -512, -257](ii) a When K is_SSBWhen the value is 8 (i.e. when i is 2), the corresponding ones are

Fall within values of [ -768, -513]。

TABLE 3 GSCN offset relationship

For example, with reference to fig. 4, fig. 4 is a schematic diagram of RE level offsets of SSBs and type0-PDCCH provided in the embodiment of the present application, where the subcarrier spacing of the searched SSBs is 960kHz and the subcarrier spacing of the corresponding type0-PDCCH is 120 kHz.

As can be seen from fig. 4, the subcarrier spacing of the SSB is 8 times that of the type0-PDCCH, and also, since the RE level offset is shifted in units of the subcarrier spacing of the SSB, in this case, the offset of the RE level between the SSB and the type0-PDCCH may take 0 or 1, and p is 1.

At this time, only the parameter K needs to be used_SSB1 bit of (1) represents the parameter K_SSBMay be configured to: when K is_SSBValue of [0, 1]When SSB is CD-SSB; when K is_SSBValue of [2, 7]When the SSB is NCD-SSB. That is, p is 1 and q is 3. Based on this, at parameter K_SSBIf the number of bits occupied is constant (e.g., 4 bits), the parameter K_SSBThe value of (2) can be flexibly configured according to the combination of the subcarrier intervals corresponding to the SSB and the type0-PDCCH and the number of the synchronization grids so as to carry out flexible configuration on the type of the SSB and the NCD-SSB

The correspondence between them is indicated.

Similarly, when the minimum frequency value of the frequency band is not less than 52.6GHz, the number of Synch brakes in the frequency band is greater than 256, for example, for the frequency band range of 52.6GHz-71GHz, since the number of Synch brakes in the frequency band range is greater than 256 and cannot exceed 665, when q is 3, the value of the offset of the GSCN may be increased to-768 to 768 on the basis of the above embodiment.

Referring to table 4, table 4 shows a GSCN offset relationship. When K is_SSBValue of [2, 7]When the SSB is NCD-SSB. When K is_SSBWhen the value is 2 (i.e. when i is 0), the corresponding value is

Fall into [1, 256 ]](ii) a When K is_SSBWhen the value is 3 (i.e. when i is 1), the corresponding ones are

Falls in [257, 512 ]](ii) a When K is_SSBWhen equal to 4(i.e. when i is 2), corresponding

Falls in [513, 768 ]](ii) a When K is_SSBWhen the value is 5 (i.e. when i is 0), the corresponding value is

Fall into [ -256, -1 ] values](ii) a When K is_SSBWhen the value is 6 (i.e. when i is 1), the corresponding ones are

Fall into the values of [ -512, -257](ii) a When K is_SSBWhen the value is 7 (i.e. when i is 2), the corresponding ones are

Fall within values of [ -768, -513]。

TABLE 4 GSCN offset relationship

For example, with reference to fig. 5, fig. 5 is a schematic diagram of RE level offsets of SSBs and type0-PDCCH provided in the embodiment of the present application, where the subcarrier spacing of the searched SSBs is 960kHz and the subcarrier spacing of the corresponding type0-PDCCH is 480 kHz.

As can be seen from fig. 5, the subcarrier spacing of the SSB is 2 times that of the type0-PDCCH, and also, since the RE level offset is shifted in units of the subcarrier spacing of the SSB, in this case, the offset of the RE level between the SSB and the type0-PDCCH may take 0, 1, 2, 3, 4, or 5, and p is 5.

At this time, it is necessary to use the parameter K_SSBIs represented by 3 bits, such that the parameter K_SSBMay be configured to: when K is_SSBValue of [0, 5]When SSB is CD-SSB; when K is_SSBValue of [6, 1]When the SSB is NCD-SSB. That is, p is 5 and q is 3. Based on this, at parameter K_SSBIf the number of bits occupied is constant (e.g., 4 bits), the parameter K_SSBCan take onFlexibly configuring according to the combination of the subcarrier intervals corresponding to the SSB and the type0-PDCCH and the number of the synchronization grids so as to carry out the type of the SSB and the NCD-SSB and PDCCH

The correspondence between them is indicated.

Similarly, when the minimum frequency value of the frequency band is not less than 52.6GHz, the number of Synch brakes in the frequency band is greater than 256, for example, for the frequency band range of 52.6GHz-71GHz, since the number of Synch brakes in the frequency band range is greater than 256 and cannot exceed 665, and q is 3, the value of the offset of the GSCN may be increased to-768 to 768 on the basis of the above embodiment.

Referring to table 5, table 5 shows a GSCN offset relationship. When K is_SSBValue of [6, 11]When the SSB is NCD-SSB. When K is_SSBWhen the value is 6 (i.e. when i is 0), the corresponding one is

Fall into [1, 256 ]](ii) a When K is_SSBWhen the value is 7 (i.e. when i is 1), the corresponding ones are

Falls in [257, 512 ]](ii) a When K is_SSBWhen the value is 8 (i.e. when i is 2), the corresponding ones are

Falls in [513, 768 ]](ii) a When K is_SSBWhen the value is 9 (i.e. when i is 0), the corresponding one is

Fall into [ -256, -1 ] values](ii) a When K is_SSBWhen the value is 10 (i.e. when i is 1), the corresponding ones are

Fall into the values of [ -512, -257](ii) a When K is_SSBWhen the value is 11 (i.e. when i is 2), the corresponding ones are true

Fall within values of [ -768, -513]。

TABLE 5 GSCN offset relationship

It can be understood that the specific values of the subcarrier spacing of the SSB and the subcarrier spacing of the type0-PDCCH are all examples provided in the embodiment of the present application, and the embodiment of the present application does not specifically limit this, and those skilled in the art can know the implementation methods of other numerical conditions based on the embodiments provided in the present application.

As an embodiment, the specific values of the subcarrier spacing of the SSB and the subcarrier spacing of the type0-PDCCH may be other values besides 120kHz, 480kHz and 960kHz, which are not specifically limited in the examples of the present application.

Next, a cell broadcast method applied to the network device 101 provided in the embodiment of the present application is introduced, and the cell broadcast method may include the following:

the synchronization signal block SSB is broadcast within the frequency band.

Specifically, in order to enable the terminal device to access the cell, the network device may generate and broadcast the SSBs corresponding to the frequency domain positions, and then the terminal device may sequentially search the frequency domain positions according to a certain order and receive the SSBs corresponding to the frequency domain positions. When the terminal device searches for the SSB in the frequency band, it may determine whether to attempt to access the cell according to the SSB.

Similar to the cell access method in the above embodiment, in the embodiment of the present application, the minimum frequency value of the frequency band is not less than 52.6GHz, and the SSB is different from the subcarrier spacing of the corresponding type 0-PDCCH. Wherein, the parameter K_SSBThe value of (c) can be configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH. Sentence changingIn other words, the difference between the SSB subcarrier spacing and the type0-PDCCH subcarrier spacing results in the parameter K_SSBThe difference in (c).

It can be understood that each parameter in the SSB broadcasted by the network device is consistent with the corresponding parameter in the cell access method in the above embodiment, and the parameter K is determined_SSBThe values of the cell broadcast method in this embodiment are consistent, and therefore, detailed description thereof is omitted, and a person skilled in the art may know a specific implementation of the cell broadcast method in this embodiment by combining with a specific implementation of the cell access method in the above embodiment.

In the above scheme, after the network device broadcasts the SSB, when the SSB searched by the terminal device is a CD-SSB, the network device may directly attempt to access the cell; when the SSB searched by the terminal device is NCD-SSB, the parameter K may be determined based on a difference between a subcarrier spacing of the SSB and a subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

Further, when the parameter K_SSBFall within [0, p ]]When the cell is identified as the cell definition CD-SSB, the representation SSB is a cell definition CD-SSB, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH; when parameter K_SSBFall into [ p +1, p +2q ]]And then, representing the SSB to define NCD-SSB for the non-cell, wherein q is a positive integer, and the number of the synchronous grids in the frequency band is 256 multiplied by q (q-1), and 256 multiplied by q is taken as a value]。

In the above scheme, when the parameter K is_SSBThe value falls within [0, p ]]When the cell is accessed, the characterization terminal equipment can directly try to access the cell based on the searched SSB; when parameter K_SSBValues falling within [ p +1, p +2q ]]The characterization of the terminal device may be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is locatedThe terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of accessing the cell is reduced.

Further, when the parameter K_SSBWhen p +1+ i, corresponding

representing the frequency domain position offset of the synchronous grid where the target CD-SSB and the NCD-SSB are located; when parameter K_SSBWhen p +1+ i + q, the corresponding

Fall into [ -256 × (i +1), - (256 × i +1)]。

Further, the value of p is a maximum integer value smaller than 12/j, wherein j represents the ratio of the SSB to the subcarrier spacing corresponding to the type 0-PDCCH.

Referring to fig. 6, fig. 6 is a block diagram of a cell access apparatus according to an embodiment of the present disclosure, where the cell access apparatus 600 may include: a determining module 601, configured to determine whether to attempt to initiate cell access according to a synchronization signal block SSB searched when the SSB is searched in a frequency band; wherein: the minimum frequency value of the frequency band is not less than 52.6GHz, and the SSB and the corresponding type 0-physics areThe downlink control channel type0-PDCCH has different subcarrier intervals, and the SSB includes a parameter K for indicating a subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH.

In the embodiment of the present application, when the searched SSB is a CD-SSB, the cell may be directly attempted to be accessed; when the searched SSB is NCD-SSB, the parameter K can be determined based on the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

Further, the determining module 601 is specifically configured to: when the parameter K is_SSBFall within [0, p ]]When the cell is determined to define a CD-SSB for the cell, demodulating the CD-SSB to try to initiate cell access, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH; when the parameter K is_SSBFall into [ p +1, p +2q ]]Determining that the SSB defines NCD-SSB for a non-cell, determining a target CD-SSB according to the NCD-SSB, demodulating the target CD-SSB to try to initiate cell access, wherein q is a positive integer, and the number of synchronization grids in the frequency band is 256 x (q-1), 256 x q is a positive integer]。

In the embodiment of the application, when the parameter K_SSBThe value falls within [0, p ]]When the cell is accessed, the cell can be directly accessed based on the searched SSB; when parameter K_SSBValues falling within [ p +1, p +2q ]]May be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where core set #0 is located, the terminal device can find a suitable CD-SSB, thereby reducing the delay of the access cell.

Further, it is characterized byThe determining module 601 is further configured to: according to the frequency domain position GSCN of the synchronous grid where the NCD-SSB is located_NCD-SSBAnd the frequency domain position offset of the synchronous grid where the target CD-SSB and the NCD-SSB are positioned

Fall into [ -256 × (i +1), - (256 × i +1)]。

In the embodiment of the application, when the parameter K_SSBValues falling within [ p +1, p +2q ]]The frequency domain position GSCN can be based on NCD-SSB_NCD-SSBAnd corresponding frequency domain position offset

Further, the value of p is a maximum integer value smaller than 12/j, wherein j represents a ratio of the SSB to a subcarrier interval corresponding to the type 0-PDCCH.

Further, when the subcarrier spacing of the SSB is 480kHz and the subcarrier spacing of the corresponding type0-PDCCH is 120kHz, p is 2 and q is 3.

Further, when the subcarrier spacing of the SSB is 960kHz and the subcarrier spacing of the corresponding type0-PDCCH is 120kHz, p is 1 and q is 3.

Further, when the subcarrier spacing of the SSB is 960kHz and the subcarrier spacing of the corresponding type0-PDCCH is 480kHz, p is 5 and q is 3.

Referring to fig. 7, fig. 7 is a block diagram of a cell broadcast apparatus according to an embodiment of the present disclosure, where the cell broadcast apparatus 700 may include: a broadcasting module 701, configured to broadcast a synchronization signal block SSB within a frequency band, where: the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH.

In the embodiment of the application, after the network device broadcasts the SSB, when the SSB searched by the terminal device is a CD-SSB, the network device may directly attempt to access the cell; when the SSB searched by the terminal device is NCD-SSB, the parameter K may be determined based on a difference between a subcarrier spacing of the SSB and a subcarrier spacing of the PDCCH where CORESET #0 is located_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

Further, when the parameter K is_SSBFall within [0, p ]]When the cell is identified as the SSB, characterizing the SSB as a cell definition CD-SSB, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH; when the parameter K is_SSBFall into [ p +1, p +2q ]]Then, characterizing the SSB as a non-cell-defined NCD-SSB, wherein q is a positive integer, and the frequency band is the same as the frequency bandThe number of step grids falls into (256 × (q-1), 256 × q]。

In the embodiment of the application, when the parameter K_SSBThe value falls within [0, p ]]When the cell is accessed, the characterization terminal equipment can directly try to access the cell based on the searched SSB; when parameter K_SSBValues falling within [ p +1, p +2q ]]The characterization of the terminal device may be based on the parameter K_SSBFind the appropriate CD-SSB and attempt to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

Further, when the parameter K is_SSBWhen p +1+ i, corresponding

Fall into [ -256 × (i +1), - (256 × i +1)]。

Finding the appropriate frequency domain position GSC corresponding to the CD-SSB_NCD-SSBAnd attempts to access the cell. Therefore, in the frequency band higher than 52.6GHz, when the subcarrier spacing of the SSB is different from the subcarrier spacing of the PDCCH where CORESET #0 is located, the terminal equipment can find the appropriate CD-SSB through configuration, so that the delay of the access cell is reduced.

Referring to fig. 8, fig. 8 is a block diagram of an electronic device according to an embodiment of the present disclosure, where the electronic device 800 includes: at least one processor 801, at least one communication interface 802, at least one memory 803, and at least one communication bus 804. Wherein the communication bus 808 is used for implementing direct connection communication of these components, the communication interface 802 is used for communicating signaling or data with other node devices, and the memory 803 stores machine readable instructions executable by the processor 801. When the electronic device 800 is in operation, the processor 801 communicates with the memory 803 via the communication bus 804, and the machine-readable instructions, when invoked by the processor 801, perform the cell access method or the cell broadcast method described above.

For example, the processor 801 of the embodiment of the present application may read the computer program from the memory 803 through the communication bus 804 and execute the computer program to implement the following method: step S201: and when the SSB is searched in the frequency band, determining whether to attempt to initiate cell access according to the searched SSB.

The processor 801 may be an integrated circuit chip having signal processing capabilities. The Processor 801 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. Which may implement or perform the various methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The Memory 803 may include, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Read Only Memory (EPROM), an electrically Erasable Read Only Memory (EEPROM), and the like.

It will be appreciated that the configuration shown in fig. 8 is merely illustrative and that electronic device 800 may include more or fewer components than shown in fig. 8 or have a different configuration than shown in fig. 8. The components shown in fig. 8 may be implemented in hardware, software, or a combination thereof. The network device and the terminal device in the embodiment of the application can be realized by electronic devices.

Embodiments of the present application further provide a computer program product including a computer program stored on a computer-readable storage medium, where the computer program includes computer program instructions, and when the computer program instructions are executed by a computer, the computer is capable of performing the steps of the cell access method or the cell broadcast method in the foregoing embodiments, for example, including: and when the synchronous signal block SSB is searched in the frequency band, determining whether to attempt to initiate cell access according to the searched SSB.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

It should be noted that the functions, if implemented in the form of software functional modules and sold or used as independent products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for cell access, comprising:

when a synchronous signal block SSB is searched in a frequency band, determining whether to attempt to initiate cell access according to the searched SSB; wherein:

the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs configured according to the difference between the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type 0-PDCCH.

2. The cell access method of claim 1, wherein the determining whether to attempt to initiate cell access according to the searched SSB comprises:

when the parameter K is_SSBFall within [0, p ]]When the cell is determined to define a CD-SSB for the cell, demodulating the CD-SSB to try to initiate cell access, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH;

when the parameter K is_SSBFall into [ p +1, p +2q ]]Determining that the SSB defines NCD-SSB for a non-cell, determining a target CD-SSB according to the NCD-SSB, demodulating the target CD-SSB to try to initiate cell access, wherein q is a positive integer, and the number of synchronization grids in the frequency band is 256 x (q-1), 256 x q is a positive integer]。

3. The cell access method of claim 2, wherein the determining a target CD-SSB from the NCD-SSB comprises:

according to the frequency domain position GSCN of the synchronous grid where the NCD-SSB is located_NCD-SSBAnd the frequency domain position offset of the synchronous grid where the target CD-SSB and the NCD-SSB are positioned

According to the parameter K corresponding to the NCD-SSB_SSBDetermining with a parameter PDCCH-configSIB1 configuring a system information block 1;

when the parameter K is_SSBWhen p +1+ i, corresponding

Fall into [256 × i +1, 256 × (i +1)]Wherein i is an integer, and i is not less than 0 and not more than q-1;

when the parameter K is_SSBWhen p +1+ i + q, the corresponding

Fall into [ -256 × (i +1), - (256 × i +1)]；

And/or the presence of a gas in the gas,

and p is a maximum integer value smaller than 12/j, wherein j represents the ratio of the SSB to the subcarrier spacing corresponding to the type 0-PDCCH.

4. A cell broadcast method, comprising:

broadcasting a synchronization signal block SSB within a frequency band, wherein:

the minimum frequency value of the frequency band is not less than 52.6GHz, the SSB is different from the subcarrier spacing of the corresponding type 0-physical downlink control channel type0-PDCCH, and the SSB comprises a parameter K for indicating the subcarrier offset of the SSB_SSBAnd, said parameter K_SSBIs according to the subcarrier spacing of the SSB and the subcarrier spacing of the corresponding type0-PDCCHAnd (4) configuring the difference.

5. The cell broadcast method of claim 4, wherein when the parameter K is greater than or equal to_SSBFall within [0, p ]]When the cell is identified as the SSB, characterizing the SSB as a cell definition CD-SSB, wherein p is a positive integer, and the value of p is determined according to the difference between the subcarrier interval of the SSB and the subcarrier interval of the corresponding type 0-PDCCH;

when the parameter K is_SSBFall into [ p +1, p +2q ]]And then, characterizing the SSB to define NCD-SSB for the non-cell, wherein q is a positive integer, and the number of the synchronization grids in the frequency band is 256 x (q-1) and 256 x q]。

6. The cell broadcast method of claim 5, wherein when the parameter K is greater than or equal to_SSBWhen p +1+ i, corresponding

representing the frequency domain position offset of a synchronous grid where the target CD-SSB and the NCD-SSB are located;

when the parameter K is_SSBWhen p +1+ i + q, the corresponding

Fall into [ -256 × (i +1), - (256 × i +1)]；

And/or the presence of a gas in the gas,

7. A cell access apparatus, comprising:

the device comprises a determining module, a judging module and a judging module, wherein the determining module is used for determining whether to try to initiate cell access according to a searched SSB when the SSB is searched in a frequency band; wherein:

8. A cell broadcast apparatus, comprising:

a broadcasting module for broadcasting a synchronization signal block SSB within a frequency band, wherein:

9. An electronic device, comprising: a processor, a memory, and a bus;

the processor and the memory are communicated with each other through the bus;

the memory stores computer program instructions executable by the processor, the processor invoking the computer program instructions to perform the cell access method of any of claims 1-3 or the cell broadcast method of any of claims 4-6.

10. A computer readable storage medium, storing computer program instructions which, when executed by a computer, cause the computer to perform the cell access method of any of claims 1-3 or the cell broadcast method of any of claims 4-6.