CN110971322A

CN110971322A - Information transmission method, network equipment and terminal

Info

Publication number: CN110971322A
Application number: CN201811161353.4A
Authority: CN
Inventors: 吴凯; 潘学明; 刘思綦
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-09-30
Filing date: 2018-09-30
Publication date: 2020-04-07
Anticipated expiration: 2038-09-30
Also published as: CN110971322B

Abstract

The invention discloses an information transmission method, network equipment and a terminal, wherein the method comprises the following steps: under the condition that the transmission channel is monitored to be idle, sending a synchronous signal block SSB through a first frequency domain resource of the transmission channel, and sending a control resource set CORESET of the residual minimum system information RMSI through a second frequency domain resource of the transmission channel; and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is larger than or equal to the preset percentage of the nominal bandwidth of the transmission channel. The embodiment of the invention provides a transmission mode of CORESET of SSB and RMSI under an unauthorized frequency band, the configuration position of the SSB is more flexible, the CORESET of the RMSI has more configuration resources, and the network coverage performance is improved.

Description

Information transmission method, network equipment and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an information transmission method, a network device, and a terminal.

Background

In a mobile communication system, an unlicensed band (unlicensed band) can be used as a supplement to a licensed band (licensed band) to help an operator expand the capacity of a service. In order to keep pace with New Radio (NR) deployments and maximize NR-based unlicensed access as much as possible, unlicensed bands may operate in the 5GHz, 37GHz, and 60GHz bands. The large bandwidth (80 or 100MHz) of the unlicensed band can reduce the implementation complexity of network devices and terminals. Since the unlicensed frequency band is shared by multiple Technologies (RATs), such as WiFi, radar, Long Term Evolution-Assisted Access (LTE-LAA) technology, in some countries or regions, the unlicensed frequency band must meet a predetermined rule (rule) when being used to ensure that all devices can fairly use the resource, such as Listen Before Talk (LBT), that is, each node listens to the channel Before transmitting, and can transmit when it is monitored that the channel is empty. Also for example, Maximum Channel Occupancy Time (MCOT), i.e., the Time for each continuous transmission cannot exceed the MCOT. An Occupied Channel Bandwidth (OCB), for example, for a 5GHz band, the OCB is greater than or equal to 80% of a nominal Channel Bandwidth (nominal Channel Bandwidth); for the 60GHz band, the OCB is greater than or equal to 70% of the nominal channel bandwidth.

In order to ensure that different wireless technologies have the same understanding on channel division for listening and transmitting when using the same spectrum resource, the unlicensed frequency band is divided by using a certain bandwidth as a unit. For example, in the LTE-LAA band, i.e., band46, the spectrum resources are divided by taking 10MHz and 20MHz as units. And gives the center position of this 20MHz channel.

In the licensed band, there are three multiplexing modes for transmitting the Synchronization Signal Block (SSB), or referred to as the Synchronization Signal/PBCH Block, and the Remaining Minimum System Information (RMSI), such as a Time Division Multiplexing (TDM) mode shown in fig. 1, and the SSB and the RMSI are transmitted in time domain in sequence. As shown in fig. 2, in a Frequency Division Multiplexing (FDM) mode, a Control Resource Set (core Set) of the RMSI is transmitted first, and a Physical Downlink Shared Channel (PDSCH) and an SSB Frequency Division multiplexing (SSB) of the RMSI are transmitted. RMSI (CORESET and PDSCH) and SSB are frequency division multiplexed as in the FDM approach shown in fig. 3. In the FDM mode, the CORESET and PDSCH of the RMSI can only be located on one side of the SSB in the frequency domain direction, and since the unlicensed frequency band has a certain resource division of 20MHz, if the transmission mode of the SSB and the RMSI in the licensed frequency band is adopted, the flexibility of the SSB location is reduced, and the unlicensed frequency band has fewer resources, which may affect the coverage.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, network equipment and a terminal, and aims to solve the problem of poor flexibility of SSB transmission positions in an unauthorized frequency band.

In a first aspect, an embodiment of the present invention provides an information transmission method, applied to a network device side, including:

under the condition that the transmission channel is monitored to be idle, sending a synchronous signal block SSB through a first frequency domain resource of the transmission channel, and sending a control resource set CORESET of the residual minimum system information RMSI through a second frequency domain resource of the transmission channel;

and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is larger than or equal to the preset percentage of the nominal bandwidth of the transmission channel.

In a second aspect, an embodiment of the present invention further provides a network device, including:

the transmitting module is used for transmitting a synchronous signal block SSB through a first frequency domain resource of a transmission channel and transmitting a control resource set CORESET of the residual minimum system information RMSI through a second frequency domain resource of the transmission channel under the condition that the transmission channel is monitored to be idle;

In a third aspect, an embodiment of the present invention provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps of the information transmission method when executing the computer program.

In a fourth aspect, an embodiment of the present invention provides an information transmission method, applied to a terminal side, including:

receiving a synchronization signal block SSB through a first frequency domain resource of a transmission channel, and receiving a control resource set CORESET of the remaining minimum system information RMSI through a second frequency domain resource of the transmission channel;

the transmission channel is a channel which is idle and is detected by the network equipment, and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is larger than or equal to the preset percentage of the nominal bandwidth of the transmission channel.

In a fifth aspect, an embodiment of the present invention provides a terminal, including:

a receiving module, configured to receive a synchronization signal block SSB through a first frequency domain resource of a transmission channel, and receive a control resource set CORESET of remaining minimum system information RMSI through a second frequency domain resource of the transmission channel;

In a sixth aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the computer program is executed by the processor, the steps of the information transmission method are implemented.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the information transmission method are implemented.

Therefore, the embodiment of the invention provides a transmission mode of the CORESET of the SSB and the RMSI under the unauthorized frequency band, the configuration position of the SSB is more flexible, the CORESET of the RMSI has more configuration resources, and the network coverage performance is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a diagram illustrating a first mapping of transmission resources of the CORESET of SSB and RMSI in the licensed band;

fig. 2 shows a second mapping diagram of transmission resources of the CORESET of SSB and RMSI in the licensed band;

fig. 3 shows a third mapping diagram of transmission resources of the CORESET of SSB and RMSI in the licensed band;

fig. 4 shows a block diagram of a mobile communication system to which an embodiment of the present invention is applicable;

fig. 5 is a flowchart illustrating an information transmission method of a network device according to an embodiment of the present invention;

fig. 6 is a first schematic diagram of transmission resource mapping of CORESET of SSB and RMSI according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a second mapping of transmission resources of CORESET of SSB and RMSI according to an embodiment of the present invention;

fig. 8 is a third schematic diagram of transmission resource mapping of CORESET of SSB and RMSI according to an embodiment of the present invention;

FIG. 9 is a block diagram of a network device according to an embodiment of the present invention;

FIG. 10 is a block diagram of a network device of an embodiment of the invention;

fig. 11 is a flowchart illustrating an information transmission method of a terminal according to an embodiment of the present invention;

fig. 12 is a schematic block diagram of a terminal according to an embodiment of the present invention;

fig. 13 shows a block diagram of a terminal according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.

The techniques described herein are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably using the techniques described herein for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes the NR system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.

The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Referring to fig. 4, fig. 4 is a block diagram of a wireless communication system to which an embodiment of the present invention is applicable. The wireless communication system includes a terminal 41 and a network device 42. The terminal 41 may also be referred to as a terminal Device or a User Equipment (UE), where the terminal 41 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or a vehicle-mounted Device, and the specific type of the terminal 41 is not limited in the embodiment of the present invention. The network device 42 may be a Base Station or a core network, wherein the Base Station may be a 5G or later-version Base Station (e.g., a gNB, a 5G NR NB, etc.), or a Base Station in other communication systems (e.g., an eNB, a WLAN access point, or other access points, etc.), wherein the Base Station may be referred to as a node B, an evolved node B, an access point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, it should be noted that, in the embodiment of the present invention, only the Base Station in the NR system is taken as an example, but does not limit the specific type of base station.

The base stations may communicate with the terminals 41 under the control of a base station controller, which may be part of the core network or some of the base stations in various examples. Some base stations may communicate control information or user data with the core network through a backhaul. In some examples, some of the base stations may communicate with each other, directly or indirectly, over backhaul links, which may be wired or wireless communication links. A wireless communication system may support operation on multiple carriers (waveform signals of different frequencies). A multi-carrier transmitter can transmit modulated signals on the multiple carriers simultaneously. For example, each communication link may be a multi-carrier signal modulated according to various radio technologies. Each modulated signal may be transmitted on a different carrier and may carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on.

The base station may communicate wirelessly with the terminal 41 via one or more access point antennas. Each base station may provide communication coverage for a respective coverage area. The coverage area of an access point may be divided into sectors that form only a portion of the coverage area. A wireless communication system may include different types of base stations (e.g., macro, micro, or pico base stations). The base stations may also utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations may be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including coverage areas of base stations of the same or different types, coverage areas utilizing the same or different radio technologies, or coverage areas belonging to the same or different access networks) may overlap.

The communication links in a wireless communication system may include an Uplink for carrying Uplink (UL) transmissions (e.g., from terminal 41 to network device 42) or a Downlink for carrying Downlink (DL) transmissions (e.g., from network device 42 to terminal 41). The UL transmission may also be referred to as reverse link transmission, while the DL transmission may also be referred to as forward link transmission. Downlink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both. Similarly, uplink transmissions may be made using licensed frequency bands, unlicensed frequency bands, or both.

An embodiment of the present invention provides an information transmission method, which is applied to a network device side, and as shown in fig. 5, the method includes the following steps:

step 51: in case that the transmission channel is sensed to be idle, the synchronization signal block SSB is transmitted through a first frequency domain resource of the transmission channel, and the control resource set CORESET of the remaining minimum system information RMSI is transmitted through a second frequency domain resource of the transmission channel.

In the unlicensed frequency band transmission, before sending downlink information, the network device needs to listen to a transmission channel of the unlicensed frequency band, and when it is listened that the transmission channel is idle, the network device occupies the transmission channel to transmit the downlink information through the transmission channel. After the network equipment monitors and successfully occupies the transmission channel, the embodiment of the invention sends SSB through the first frequency domain resource of the transmission channel and sends CORESET of RMSI through the second frequency domain resource of the transmission channel.

The RMSI is System Information 1(System Information Block 1, SIB1), and the System Information further includes Other System Information (OSI), i.e., System Information x (SIB # x, x > 1). The core set of the RMSI may be used for transmitting scheduling PDCCH of the RMSI, PDCCH of scheduling OSI, Random Access Response (RAR), paging information (paging), random Access message 4(message4, MSG4), etc., resource of PDSCH of the RMSI, and scheduling PDSCH carrying the above information.

The SSB and the RMSI may be frequency division multiplexing or time division multiplexing. And the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is larger than or equal to the preset percentage of the nominal bandwidth of the transmission channel. Specifically, when the core set of the SSB and the RMSI is sent in the FDM manner, the bandwidth occupied by the first frequency domain resource and the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel, that is, the SSB and the RMSI satisfy the OCB requirement of the unlicensed frequency band. When the core of the SSB and the RMSI is transmitted in the TDM manner, the bandwidth occupied by the first frequency domain resource or the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel, that is, the SSB or the RMSI satisfies the OCB requirement of the unlicensed frequency band.

Wherein, when the SSB is frequency division multiplexed with the CORESET of the RMSI, the second frequency domain resources include: a first frequency-domain subband located on a high frequency side of the first frequency-domain resource and/or a second frequency-domain subband located on a low frequency side of the first frequency-domain resource. That is, the frequency domain resources of CORESERT transmitting the RMSI may be only on one side of the SSB frequency domain resources, as shown in fig. 6; and also on both sides of the SSB frequency domain resources as shown in fig. 7. Therefore, the frequency domain configuration position of the SSB is more flexible, the frequency domain resource configuration position of CORESET of the RMSI is more, and the coverage performance of the network equipment can be improved.

In an embodiment where the core set of the SSB and the RMSI is frequency division multiplexed, the starting position of the first frequency domain Resource is the position of the starting subcarrier of the starting Resource Block (RB) of the transport channel, i.e. as shown in fig. 6, the SSB is located in the low frequency part of the transport channel, specifically the starting RB of the SSB starts from the starting subcarrier (SC #0, i.e. the subcarrier with number 0, with number 0) of the starting RB (RB #0, i.e. the RB with number 0, with number 0) of the transport channel. Alternatively, the end position of the first frequency domain resource is the frequency domain end position of the transmission channel, that is, the SSB is located in the high frequency part of the transmission channel, specifically, the end RB of the SSB is the end RB of the transmission channel (not shown in the figure).

Further, when the starting position of the first frequency-domain resource of the SSB is the position of the starting subcarrier of the starting RB of the transmission channel, the second frequency-domain resource includes only the second frequency-domain subband. When the end position of the first frequency-domain resource of the SSB is the frequency-domain end position of the transmission channel, the second frequency-domain resource includes only the first frequency-domain subband. In this mode, the CORESET of the RMSI is located only on one side of the SSB, so that the indication mode of the CORESET of the RMSI in the licensed band can be multiplexed.

In addition, in other scenarios, the second frequency-domain resources may also include only the first frequency-domain subband or the second frequency-domain subband. For example: when the number of RBs on the low frequency side of the first frequency domain resource is less than the preset number N, the second frequency domain resource only includes the first frequency domain subband, as shown in fig. 8, the number of RBs on the low frequency side of the SSB in the transmission channel is less than N, and the second frequency domain resource only includes the first frequency domain subband on the high frequency side of the SSB; or when the number of Resource Blocks (RB) on the high-frequency side of the first frequency domain resource is less than N, the second frequency domain resource only comprises a second frequency domain sub-band; wherein N is a positive integer. Here, N is the minimum RB number included in the CORESET of the RMSI, and since a Channel Control Element (CCE) resource of a Physical Downlink Control Channel (PDCCH) includes 6 REGs, each REG corresponds to 1 RB, N may be 6, that is, a method of dividing by using 6 RBs as a unit can ensure that there are an integral number of CCEs in the PDCCH. Specifically, on the unlicensed band, starting from the starting RB of the transmission channel of the unlicensed band, if there are more than N consecutive RBs available, these RBs may be used as the second frequency domain resource of the core set of the RMSI. If the number of available RBs is less than N, then these RBs may not be used for the second frequency domain resource of CORESET for RMSI.

Further, the number of RBs of the first frequency-domain subband or the second frequency-domain subband is greater than or equal to the preset number N, and the number of RBs of the first frequency-domain subband or the second frequency-domain subband is an integer multiple of N. That is, the number of consecutive RBs in the first frequency-domain subband or the second frequency-domain subband used for the CORESET for transmitting the RMSI is greater than N and is an integer multiple of N. As shown in fig. 8, the number of RBs included in the first frequency-domain subband is greater than or equal to N and is an integer multiple of N. Assuming that the number of RBs on the low frequency side of the SSB in the 20MHz transmission channel is 5 and is less than 6, the 6 RBs are not available for transmitting the core set of the RMSI, and it is worth pointing out that the 6 RBs are available for transmitting the PDSCH, which is the physical downlink shared channel of the RMSI. The number of available RBs on the high frequency side of the SSB in the transmission channel is 26, N is 6, then the first frequency-domain subband contains 24 consecutive RBs, and the remaining 2 RBs are not used for the transmission of the CORESET of RMSI, it is worth pointing out that these 2 RBs can be used for the transmission of the PDSCH of RMSI.

Specifically, as shown in fig. 8, the SSB and the RMSI are multiplexed in an FDM manner, the CORESET and the PDSCH of the RMSI can be transmitted on both sides of the SSB, the RB numbers are determined in 6 RB units in an ascending order from RB #0 of the transmission channel, and if there are 6 consecutive RBs that are not used for transmission of the SSB, the 6 RBs are CORESET resources; alternatively, on the other side of the SSB, i.e., the higher frequency side, the next RB of the RBs occupied by the SSB is used as the starting point (if the subcarrier spacing between the SSB and the RMSI is different, the next RB is used as the starting point, i.e., one RB apart), and the judgment is made in 6 RB units in ascending order of RB number, and if there are 6 consecutive RBs that are not used for transmission of the SSB, the 6 RBs are CORESET resources.

It should be noted that if the subcarrier spacing of the SSB and the RMSI is different, a guard interval of a preset number of RBs exists between RBs occupied by the CORESET of the SSB and the RMSI, for example, 1 RB. That is, if the SSB and the RMSI have different subcarrier spacings, a guard interval of a preset number of RBs exists between the first frequency-domain resource and the second frequency-domain resource.

Further, when the SSB and the RMSI are frequency division multiplexed, the bandwidth occupied by the first frequency domain resource and the second frequency domain resource may also be equal to the nominal bandwidth of the transmission channel. That is, in the transmission channel of the unlicensed band, other resources than the resource for transmitting the SSB may be used for transmitting the CORESET of the RMSI. In the unlicensed frequency band, assuming that the bandwidth of the transmission channel is 20MHz, as shown in fig. 6, the starting position of the first frequency domain resource for sending the SSB is the position of the starting subcarrier of the starting RB of the transmission channel, and the second frequency domain resource is all the resources except the first frequency domain resource in the transmission channel. Alternatively, as shown in fig. 7, the first frequency domain resource for transmitting the SSB is located in the middle of the transmission channel, the second frequency domain resource includes a first frequency domain sub-band and a second frequency domain sub-band respectively located at two sides of the first frequency domain resource, and the first frequency domain resource and the second frequency domain resource occupy the channel bandwidth of the entire transmission channel. Therefore, the two modes maximally use the bandwidth resources of the transmission channel, meet the OCB requirement of the unauthorized frequency band and improve the coverage performance of the network equipment.

While the above describes the SSB and RMSI frequency division multiplexing, the following embodiment further describes the SSB and RMSI time division multiplexing.

When the sseset of the SSB and the RMSI are time-multiplexed, i.e. the transmission of the CORESET of the RMSI is not on the OFDM symbol where the associated SSB is located, then all RBs of the transmission channel can be used as transmission resources of the CORESET of the RMSI. That is, the bandwidth occupied by the second frequency domain resource of the CORESET transmitting the RMSI is equal to the nominal bandwidth of the transmission channel.

In one embodiment, the transmission channel includes X consecutive RBs, the second frequency-domain resource includes Y consecutive RBs, Y is a maximum integer that is an integer multiple of the preset number N and less than X, and X, Y and N are both positive integers. That is, the number of RBs of the core set of the RMSI is the maximum number of RBs that satisfies an RB smaller than the transport channel and is an integer multiple of N, and these RB resources are consecutive RBs.

Preferably, the starting position of the second frequency domain resource is indicated by a Physical Broadcast Channel (PBCH) in the SSB. I.e., the starting position of the core set of the RMSI may be indicated by information in the PBCH.

Further, Synchronization grid (Synchronization raster) refers to locations where center frequency points are made where SSBs can be detected for the cell search/system access phase, and the terminal attempts detection of SSBs at these locations.

Since the SSB includes Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS), the terminal may identify the cell after detecting PSS and SSS, and since spectrum resources of different operators may be different in the licensed band, for example, the spectrum of operator a is 20MHz, the spectrum of operator B may be 5MHz, and the spectrum of operator C is 5MHz, but the spectrum locations of operator C and operator B are not completely overlapped. Due to the uncertainty of the spectrum resource, the synchronization grid synchronization operator needs to be defined at narrow intervals to ensure operators with different bandwidth resources and locations, there is a location in the bandwidth resource where an SSB can be deployed, and the terminal can search for the cell based on the SSB and access the cell. The narrower interval also means that the terminal needs to try blind detection of more positions to access, increasing the complexity of initial search of the terminal.

Further, the mobile communication system may support that the location of the synchronization grid is not fixed at the center of its carrier, so the network device may configure the carrier and transmit the SSB more flexibly. The positions and the calculation of the GSCN in different frequency domain ranges are as follows:

for example, when GSCN is 2, it can be deduced that N is 1 and M is 1, so that the corresponding frequency domain position is 1250 kHz.

In the embodiment of the present invention, a central frequency point (i.e., a synchronization grid) of an SSB is located on a Resource Element (RE) of a target RB; that is, the starting RE of the target RB may be transmitted as a SSB for system acquisition (systematic acquisition). Wherein the content of the first and second substances,

1. the target RB is: the [ a/2+ b + N ] th channel in the transmission channel_offset]A RB, wherein a is the number of RBs occupied by SSB, b is a coefficient, N is a preset number_offsetTo offset the number of RBs, e.g. N_offsetIs the offset RB number of the starting position of the first SSB in the transport channel relative to the starting RB in the transport channel. Assuming that the SSB occupies 20 RBs, and a is 20, the [10+ b × N + N ] th channel on the transmission channel of the unlicensed frequency band_offset]RE #0 of each RB is the central frequency point of each SSB in the transmission channel, N_offsetThe number of RBs that the first SSB is offset from RB # 0.

That is, the starting RE of the SSB is RE #0 of a certain RB on the transport channel, and the positions where the SSB can be transmitted are distributed at equal intervals on the channel, and the intervals are integer multiples of the RB. For example, on a 20MHz transmission channel, when the subcarrier spacing is 30kHz, the number of RBs of the transmission channel is 51, and the starting position of the 0 th, 6 th, 12 th, … … th, 24 th RBs of the transmission channel is defined as the starting position where the SSB can be transmitted, or RE #0 of [0,6 th, 12 th, … … th, 24 th ] +10 RBs (or referred to as the initial subcarrier SC #0) is the position corresponding to the synchronization grid synchronization raster. In this way, it cannot be guaranteed that the RB resource lattice of the SSB is aligned with the resource lattice of the channel, that is, it cannot be guaranteed that the subcarrier 0 of the SSB is also the subcarrier 0 of a certain RB in the channel resource, and after detecting the SSB, the terminal needs to read information in the PBCH in the SSB to determine the RB boundary of the channel resource of the SSB. The scheme can quickly determine the RB boundary of the channel and save the signaling overhead of PBCH.

2. Alternatively, the target RB is: assuming that the SSB occupies 20 RBs in the a/2 th RB in the transmission channel, and if a is 20, then RE #0 of the 10 th RB on the transmission channel of the unlicensed frequency band is a center frequency point of the SSB;

3. alternatively, the target RB is: the [ X-a/2+1] RB in the transmission channel, wherein X is the number of RBs contained in the transmission channel; assuming that the SSB occupies 20 RBs, and then a equals 20, RE #0 of the [ X-10+1] th RB on the transmission channel of the unlicensed frequency band is the center frequency point of the SSB.

In the above 2 and 3, the SSB is allowed to be placed only on both sides of the channel, i.e. RB #0 of the SSB is also RB #0 of the channel at the same time, as shown in fig. 6; or the last RB of the SSB is also the last RB of the channel (not shown in the figure).

It should be noted that in the embodiment of the present invention, the numbers of the RB, RE, subcarrier spacing, and the like are all from 0, and if the numbers of the RB, RE, subcarrier spacing, and the like are from 1, the target RB needs to be shifted by one RB.

Further, the RB resources of the core set of the RMSI and the corresponding resource range of the PDSCH scheduling, i.e., the RB of the BWP, are not necessarily the same, as shown in fig. 8. However, since the frequency division of the unlicensed frequency band is determined, the terminal may determine the position of the starting subcarrier of the starting RB of the transmission channel, and in order to simplify the demodulation process, the Reference point of the demodulation Reference Signal (De-Modulation Reference Signal, DMRS) of the RMSI is located at the position of the starting subcarrier of the starting RB of the transmission channel. Specifically, the reference point of the demodulation reference signal DMRS of the control channel PDCCH in the core set of the RMSI and/or the physical shared channel PDSCH scheduled by the core set of the RMSI may be the position of the starting subcarrier of the starting RB of the transmission channel.

The information transmission method of the embodiment of the invention provides a transmission mode of the CORESET of the SSB and the RMSI under the unauthorized frequency band, the configuration position of the SSB is more flexible, the CORESET of the RMSI has more configuration resources, and the network coverage performance is improved.

The above embodiments respectively describe in detail the information transmission methods in different scenarios, and the following embodiments further describe the corresponding network devices with reference to the accompanying drawings.

As shown in fig. 9, the network device 900 according to the embodiment of the present invention can implement that, in the foregoing embodiment, when it is detected that the transmission channel is idle and occupies the transmission channel, the synchronization signal block SSB is sent through the first frequency domain resource of the transmission channel, and the control resource set CORESET of the remaining minimum system information RMSI is sent through the second frequency domain resource of the transmission channel; the details of the method in which the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel, and the same effect is achieved, the network device 900 specifically includes the following functional modules:

a sending module 910, configured to send a synchronization signal block SSB through a first frequency domain resource of a transmission channel and send a control resource set CORESET of remaining minimum system information RMSI through a second frequency domain resource of the transmission channel when it is detected that the transmission channel is idle;

Wherein the SSB is frequency division multiplexed with the CORESET of the RMSI,

the second frequency domain resource includes: a first frequency-domain subband located on a high frequency side of the first frequency-domain resource and/or a second frequency-domain subband located on a low frequency side of the first frequency-domain resource.

When the number of Resource Blocks (RB) on the low-frequency side of the first frequency domain resource is smaller than a preset number N, the second frequency domain resource only comprises the first frequency domain sub-band;

alternatively, the first and second electrodes may be,

when the number of RBs located on the high frequency side of the first frequency domain resource is less than N, the second frequency domain resource only includes the second frequency domain subband;

wherein N is a positive integer.

And the RB number of the first frequency domain sub-band or the second frequency domain sub-band is greater than the preset number N, and the RB number of the first frequency domain sub-band or the second frequency domain sub-band is integral multiple of the N.

Wherein, the SSB and the CORESET of the RMSI are frequency division multiplexing;

the starting position of the first frequency domain resource is the position of the starting subcarrier of the starting RB of the transmission channel,

or, the end position of the first frequency domain resource is the frequency domain end position of the transmission channel.

Wherein, when the SSB is frequency division multiplexed with the CORESET of the RMSI, the bandwidth occupied by the first frequency domain resource and the second frequency domain resource is equal to the nominal bandwidth of the transmission channel.

Wherein the CORESET of SSB and RMSI is time division multiplexed.

The transmission channel comprises X continuous RBs, the second frequency domain resource comprises Y continuous RBs, Y is a maximum integer which is an integral multiple of a preset number N and is smaller than X, and X, Y and N are positive integers.

Wherein the starting position of the second frequency domain resource is indicated by a physical broadcast channel PBCH in the SSB.

Wherein the bandwidth occupied by the second frequency domain resource is equal to the nominal bandwidth of the transmission channel.

Wherein, the central frequency point of SSB is located on the initial resource element RE of the target RB; wherein, the target RB is:

the [ a/2+ b + N ] th channel in the transmission channel_offset]A RB, wherein a is the number of RBs occupied by SSB, b is a coefficient, N is a preset number_offsetIs an offset RB number;

alternatively, the first and second electrodes may be,

a/2 th RB in a transmission channel;

alternatively, the first and second electrodes may be,

and the [ X-a/2+1] RB in the transmission channel, wherein X is the number of RBs contained in the transmission channel.

The reference point of a demodulation reference signal DMRS of a control channel PDCCH in CORESET of RMSI and/or a physical shared channel PDSCH scheduled by the CORESET of RMSI is located at the position of a starting subcarrier of a starting RB of a transmission channel.

It is worth pointing out that, in the transmission of the SSB and the CORESET of the RMSI by the network device in the embodiment of the present invention in the unlicensed frequency band, the configuration location of the SSB is flexible, and the CORESET of the RMSI has more configuration resources, which improves the network coverage performance.

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps in the information transmission method described above are implemented. Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information transmission method as described above.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 10, the network device 1000 includes: antenna 101, radio frequency device 102, baseband device 103. Antenna 101 is connected to radio frequency device 102. In the uplink direction, rf device 102 receives information via antenna 101 and sends the received information to baseband device 103 for processing. In the downlink direction, the baseband device 103 processes information to be transmitted and transmits the information to the rf device 102, and the rf device 102 processes the received information and transmits the processed information through the antenna 101.

The above-mentioned band processing means may be located in the baseband apparatus 103, and the method performed by the network device in the above embodiment may be implemented in the baseband apparatus 103, where the baseband apparatus 103 includes the processor 104 and the memory 105.

The baseband apparatus 103 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 10, where one of the chips, for example, the processor 104, is connected to the memory 105 to call up a program in the memory 105 to perform the network device operations shown in the above method embodiments.

The baseband device 103 may further include a network interface 106, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 102.

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

The memory 105 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 105 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored in the memory 105 and operable on the processor 104, the processor 104 calling the computer program in the memory 105 to execute the method performed by each module shown in fig. 9.

In particular, the computer program, when invoked by the processor 104, is operable to perform: under the condition that the transmission channel is monitored to be idle, sending a synchronous signal block SSB through a first frequency domain resource of the transmission channel, and sending a control resource set CORESET of the residual minimum system information RMSI through a second frequency domain resource of the transmission channel;

In the network equipment in the embodiment of the invention, in the transmission of SSB and RMSI CORESET under an unauthorized frequency band, the configuration position of the SSB is more flexible, and the RMSI CORESET has more configuration resources, thereby improving the network coverage performance.

The above embodiment describes the information transmission method of the present invention from the network device side, and the following embodiment further describes the information transmission method at the terminal side with reference to the drawings.

As shown in fig. 11, the information transmission method according to the embodiment of the present invention, applied to the terminal side, includes the following steps:

step 111: the synchronization signal block SSB is received over a first frequency domain resource of the transmission channel and the control resource set CORESET of the remaining minimum system information RMSI is received over a second frequency domain resource of the transmission channel.

The transmission channel is a channel which is idle and sensed by the network equipment, after the network equipment senses the idle transmission channel, the network equipment sends the SSB through the first frequency domain resource of the transmission channel, and sends the CORESET of the RMSI through the second frequency domain resource of the transmission channel. The SSB and the RMSI may be frequency division multiplexing or time division multiplexing. The first frequency domain resource and/or the second frequency domain resource occupy a bandwidth greater than or equal to a preset percentage of a nominal bandwidth of a transmission channel. Specifically, when the core set of the SSB and the RMSI is sent in the FDM manner, the bandwidth occupied by the first frequency domain resource and the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel, that is, the SSB and the RMSI satisfy the OCB requirement of the unlicensed frequency band. When the core of the SSB and the RMSI is transmitted in the TDM manner, the bandwidth occupied by the first frequency domain resource or the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel, that is, the SSB or the RMSI satisfies the OCB requirement of the unlicensed frequency band.

Wherein, when the SSB is frequency division multiplexed with the CORESET of the RMSI, the second frequency domain resources include: a first frequency-domain subband located on a high frequency side of the first frequency-domain resource and/or a second frequency-domain subband located on a low frequency side of the first frequency-domain resource. That is, the frequency domain resources of CORESERT transmitting the RMSI may be only on one side of the SSB frequency domain resources, as shown in fig. 6; and also on both sides of the SSB frequency domain resources as shown in fig. 7.

In an embodiment where the core set of the SSB and the RMSI is frequency division multiplexed, the starting position of the first frequency domain resource is the position of the starting subcarrier of the starting RB of the transmission channel, i.e. the SSB is located in the low frequency part of the transmission channel as shown in fig. 6, specifically the starting RB of the SSB starts from the starting subcarrier (SC #0, i.e. subcarrier numbered 0, starting from 0) of the starting RB of the transmission channel (RB #0, i.e. RB numbered 0, starting from 0). Alternatively, the end position of the first frequency domain resource is the frequency domain end position of the transmission channel, that is, the SSB is located in the high frequency part of the transmission channel, specifically, the end RB of the SSB is the end RB of the transmission channel (not shown in the figure).

In addition, in other scenarios, the second frequency-domain resources may also include only the first frequency-domain subband or the second frequency-domain subband. For example: when the number of RBs on the low frequency side of the first frequency domain resource is less than the preset number N, the second frequency domain resource only includes the first frequency domain subband, as shown in fig. 8, the number of RBs on the low frequency side of the SSB in the transmission channel is less than N, and the second frequency domain resource only includes the first frequency domain subband on the high frequency side of the SSB; or when the number of Resource Blocks (RB) on the high-frequency side of the first frequency domain resource is less than N, the second frequency domain resource only comprises a second frequency domain sub-band; wherein N is a positive integer. Here, N is the minimum number of RBs included in the CORESET of the RMSI, and since the CCE resource of the PDCCH includes 6 RBs, N may be 6, that is, the method of dividing by 6 RBs can ensure that there are an integral number of CCEs in the PDCCH. Specifically, on the unlicensed band, starting from the starting RB of the transmission channel of the unlicensed band, if there are more than N consecutive RBs available, these RBs may be used as the second frequency domain resource of the core set of the RMSI. If the number of available RBs is less than N, then these RBs may not be used for the second frequency domain resource of CORESET for RMSI.

Further, the number of RBs of the first frequency-domain subband or the second frequency-domain subband is greater than or equal to the preset number N, and the number of RBs of the first frequency-domain subband or the second frequency-domain subband is an integer multiple of N. That is, the number of consecutive RBs in the first frequency-domain subband or the second frequency-domain subband used for the CORESET for transmitting the RMSI is greater than N and is an integer multiple of N. As shown in fig. 8, the number of RBs included in the first frequency-domain subband is greater than or equal to N and is an integer multiple of N. Assuming that the number of RBs on the low frequency side of the SSB in the 20MHz transmission channel is 5 and less than 6, these 6 RBs are not available for the core set transmission of RMSI, and it is worth pointing out that these 6 RBs are available for the PDSCH transmission of RMSI. The number of available RBs on the high frequency side of the SSB in the transmission channel is 26, N is 6, then the first frequency-domain subband contains 24 consecutive RBs, and the remaining 2 RBs are not used for the transmission of the CORESET of RMSI, it is worth pointing out that these 2 RBs can be used for the transmission of the PDSCH of RMSI. .

It is worth pointing out that if the subcarrier spacing of the SSB and the RMSI are different, there is a guard interval of a preset number of RBs between RBs occupied by the CORESET of the SSB and the RMSI, for example, 1 RB. That is, if the SSB and the RMSI have different subcarrier spacings, a guard interval of a preset number of RBs exists between the first frequency-domain resource and the second frequency-domain resource.

Further, when the SSB and the RMSI are frequency division multiplexed, the bandwidth occupied by the first frequency domain resource and the second frequency domain resource may also be equal to the nominal bandwidth of the transmission channel. That is, in the transmission channel of the unlicensed band, other resources than the resource for transmitting the SSB may be used for transmitting the CORESET of the RMSI.

When the sseset of the SSB and the RMSI are time-multiplexed, i.e. the transmission of the CORESET of the RMSI is not on the OFDM symbol where the associated SSB is located, then all RBs of the transmission channel can be used as transmission resources of the CORESET of the RMSI. That is, the bandwidth occupied by the second frequency domain resource of the core set of the RMSI is equal to the nominal bandwidth of the transmission channel.

Preferably, the starting position of the second frequency domain resource is indicated by a physical broadcast channel PBCH in the SSB. I.e., the starting position of the core set of the RMSI may be indicated by information in the PBCH.

1. the target RB is: the [ a/2+ b + N ] th channel in the transmission channel_offset]A RB, wherein a is the number of RBs occupied by SSB, b is a coefficient, N is a preset number_offsetTo offset the number of RBs, e.g. N_offsetIs the starting position of the first SSB in the transport channel offset by the number of RBs from the starting RB in the transport channel. Assuming that the SSB occupies 20 RBs, and a is 20, the [10+ b × N + N ] th channel on the transmission channel of the unlicensed frequency band_offset]RE #0 of an RB is the central frequency point of the SSB in the transmission channel, N_offsetThe number of RBs that the first SSB is offset from RB # 0.

Further, the RB resources of the core set of the RMSI and the corresponding resource range of the PDSCH scheduling, i.e., the RB of the BWP, are not necessarily the same, as shown in fig. 8. However, since the frequency division of the unlicensed frequency band is determined, the terminal may determine the position of the starting subcarrier of the starting RB of the transmission channel, and in order to simplify the demodulation process, the reference point of the demodulation reference signal DMRS of the RMSI is located at the position of the starting subcarrier of the starting RB of the transmission channel. Specifically, the reference point of the demodulation reference signal DMRS of the control channel PDCCH in the core set of the RMSI and/or the physical shared channel PDSCH scheduled by the core set of the RMSI may be the position of the starting subcarrier of the starting RB of the transmission channel.

In the information transmission method of the embodiment of the invention, a transmission mode of the CORESET of the SSB and the RMSI under the unauthorized frequency band is provided, the configuration position of the SSB is more flexible, the CORESET of the RMSI has more configuration resources, and the network coverage performance is improved.

The above embodiments describe information transmission methods in different scenarios, and a terminal corresponding to the method will be further described with reference to the accompanying drawings.

As shown in fig. 12, the terminal 1200 according to the embodiment of the present invention can implement the details of the method for receiving the synchronization signal block SSB through the first frequency domain resource of the transmission channel and receiving the control resource set CORESET of the remaining minimum system information RMSI through the second frequency domain resource of the transmission channel in the foregoing embodiment, and achieve the same effect, where the transmission channel is a channel that is detected to be idle by the network device, and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel. The terminal 1200 specifically includes the following functional modules:

a receiving module 1210, configured to receive a synchronization signal block SSB through a first frequency domain resource of a transmission channel, and receive a control resource set CORESET of remaining minimum system information RMSI through a second frequency domain resource of the transmission channel;

Wherein the SSB is frequency division multiplexed with the CORESET of the RMSI,

alternatively, the first and second electrodes may be,

wherein N is a positive integer.

Wherein the CORESET of SSB and RMSI is time division multiplexed.

alternatively, the first and second electrodes may be,

a/2 th RB in a transmission channel;

alternatively, the first and second electrodes may be,

It is worth pointing out that, in the transmission of the sseset of the SSB and the rmes in the unlicensed frequency band, the terminal in the embodiment of the present invention has a more flexible configuration location of the SSB, and the CORESET of the RMSI has more configuration resources, thereby improving the network coverage performance.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when some of the above modules are implemented in the form of a processing element scheduler code, the processing element may be a general purpose processor, such as a Central Processing Unit (CPU) or other processor that can invoke the program code. As another example, these modules may be integrated together, implemented in the form of a system-on-a-chip (SOC).

To better achieve the above object, further, fig. 13 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 130 includes, but is not limited to: a radio frequency unit 131, a network module 132, an audio output unit 133, an input unit 134, a sensor 135, a display unit 136, a user input unit 137, an interface unit 133, a memory 139, a processor 1310, and a power supply 1311. Those skilled in the art will appreciate that the terminal configuration shown in fig. 13 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The rf unit 131 is configured to receive and transmit data under the control of the processor 1310, and is specifically configured to: receiving a synchronization signal block SSB through a first frequency domain resource of a transmission channel, and receiving a control resource set CORESET of the remaining minimum system information RMSI through a second frequency domain resource of the transmission channel;

the transmission channel is an idle channel which is detected by the network equipment, and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is greater than or equal to the preset percentage of the nominal bandwidth of the transmission channel;

in the terminal of the embodiment of the invention, in the transmission of the SSB and the CORESET of the RMSI under the unauthorized frequency band, the configuration position of the SSB is more flexible, and the CORESET of the RMSI has more configuration resources, thereby improving the network coverage performance.

It should be understood that, in the embodiment of the present invention, the rf unit 131 may be used for receiving and transmitting signals during a message transmission or a call, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 1310; in addition, the uplink data is transmitted to the base station. Generally, the radio frequency unit 131 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 131 can also communicate with a network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband internet access via the network module 132, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 133 may convert audio data received by the radio frequency unit 131 or the network module 132 or stored in the memory 139 into an audio signal and output as sound. Also, the audio output unit 133 may also provide audio output related to a specific function performed by the terminal 130 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 133 includes a speaker, a buzzer, a receiver, and the like.

The input unit 134 is used to receive audio or video signals. The input Unit 134 may include a Graphics Processing Unit (GPU) 1341 and a microphone 1342, and the Graphics processor 1341 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 136. The image frames processed by the graphic processor 1341 may be stored in the memory 139 (or other storage medium) or transmitted via the radio frequency unit 131 or the network module 132. The microphone 1342 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 131 in case of the phone call mode.

The terminal 130 also includes at least one sensor 135, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 1361 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 1361 and/or the backlight when the terminal 130 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 135 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.

The display unit 136 is used to display information input by a user or information provided to the user. The Display unit 136 may include a Display panel 1361, and the Display panel 1361 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 137 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 137 includes a touch panel 1371 and other input devices 1372. Touch panel 1371, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 1371 (e.g., operations by a user on or near touch panel 1371 using a finger, a stylus, or any other suitable object or attachment). The touch panel 1371 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1310, and receives and executes commands sent from the processor 1310. In addition, the touch panel 1371 may be implemented by various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1371, the user input unit 137 may include other input devices 1372. Specifically, the other input devices 1372 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, touch panel 1371 can be overlaid on display panel 1361, and when touch panel 1371 detects a touch operation on or near the touch panel, the touch panel is transmitted to processor 1310 to determine the type of the touch event, and then processor 1310 provides a corresponding visual output on display panel 1361 according to the type of the touch event. Although in fig. 13, the touch panel 1371 and the display panel 1361 are implemented as two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 1371 and the display panel 1361 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 133 is an interface for connecting an external device to the terminal 130. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 133 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 130 or may be used to transmit data between the terminal 130 and the external device.

The memory 139 may be used to store software programs as well as various data. The memory 139 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 139 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1310 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 139 and calling data stored in the memory 139, thereby performing overall monitoring of the terminal. Processor 1310 may include one or more processing units; preferably, the processor 1310 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1310.

The terminal 130 may further include a power supply 1311 (e.g., a battery) for supplying power to various components, and preferably, the power supply 1311 may be logically connected to the processor 1310 through a power management system, so that functions of managing charging, discharging, and power consumption are implemented through the power management system.

In addition, the terminal 130 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1310, a memory 139, and a computer program stored in the memory 139 and capable of running on the processor 1310, where the computer program is executed by the processor 1310 to implement each process of the above-mentioned information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which may exchange language and/or data with the RAN. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an Access Terminal (Access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Device or User Equipment (User Equipment), which are not limited herein.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, 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 through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The 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.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes 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 invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An information transmission method is applied to a network device side, and is characterized by comprising the following steps:

under the condition that a transmission channel is monitored to be idle, a synchronization signal block SSB is sent through a first frequency domain resource of the transmission channel, and a control resource set CORESET of the residual minimum system information RMSI is sent through a second frequency domain resource of the transmission channel;

and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is greater than or equal to a preset percentage of the nominal bandwidth of the transmission channel.

2. An information transmission method applied to a terminal side, comprising:

receiving a synchronization signal block SSB through a first frequency domain resource of a transmission channel, and receiving a control resource set CORESET of remaining minimum system information RMSI through a second frequency domain resource of the transmission channel;

the transmission channel is an idle channel which is detected by network equipment, and the bandwidth occupied by the first frequency domain resource and/or the second frequency domain resource is larger than or equal to the preset percentage of the nominal bandwidth of the transmission channel.

3. The information transmission method according to claim 1 or 2, wherein the SSB is frequency division multiplexed with the CORESET of the RMSI,

the second frequency domain resource comprises: a first frequency domain subband located on a high frequency side of the first frequency domain resource, and/or a second frequency domain subband located on a low frequency side of the first frequency domain resource.

4. The information transmission method according to claim 3, wherein the second frequency-domain resource includes only the first frequency-domain subband when the number of Resource Blocks (RBs) located on a low frequency side of the first frequency-domain resource is less than a preset number N;

alternatively, the first and second electrodes may be,

when the number of RBs located on the high frequency side of the first frequency-domain resource is less than the N, the second frequency-domain resource includes only the second frequency-domain subband;

wherein N is a positive integer.

5. The information transmission method according to claim 3, wherein the number of RBs of the first or second frequency-domain sub-band is greater than or equal to a preset number N, and the number of RBs of the first or second frequency-domain sub-band is an integer multiple of N.

6. The information transmission method according to claim 1 or 2, wherein the SSB is frequency division multiplexed with the CORESET of the RMSI;

or the end position of the first frequency domain resource is the frequency domain end position of the transmission channel.

7. The information transmission method according to claim 1 or 2, wherein when the SSB is frequency division multiplexed with the core set of the RMSI, the bandwidth occupied by the first frequency-domain resource and the second frequency-domain resource is equal to the nominal bandwidth of the transmission channel.

8. The information transmission method according to claim 1 or 2, wherein the SSB and the CORESET of the RMSI are time-division multiplexed.

9. The information transmission method according to claim 8, wherein the transmission channel includes X consecutive RBs, the second frequency-domain resource includes Y consecutive RBs, Y is a maximum integer that is an integer multiple of a preset number N and smaller than X, and both X, Y and N are positive integers.

10. The information transmission method of claim 8, wherein a starting position of the second frequency domain resource is indicated by a Physical Broadcast Channel (PBCH) in the SSB.

11. The method of claim 8, wherein the second frequency domain resource occupies a bandwidth equal to a nominal bandwidth of the transmission channel.

12. The information transmission method according to claim 1 or 2, wherein the central frequency point of the SSB is located on a starting resource element RE of a target RB; wherein the target RB is:

the [ a/2+ b × N + N ] th channel in the transmission channel_offset]A number of RBs, wherein a is the number of RBs occupied by the SSB, b is a coefficient, N is a preset number, N is a number_offsetIs an offset RB number;

alternatively, the first and second electrodes may be,

a/2 th RB in the transmission channel;

alternatively, the first and second electrodes may be,

13. The information transmission method according to claim 1 or 2, wherein a reference point of a demodulation reference signal (DMRS) of a control channel (PDCCH) in a CORESET of the RMSI and/or a physical shared channel (PDSCH) scheduled by the CORESET of the RMSI is located at a position of a starting subcarrier of a starting RB of the transmission channel.

14. A network device, comprising:

a sending module, configured to send a synchronization signal block SSB through a first frequency domain resource of a transmission channel and send a control resource set CORESET of remaining minimum system information RMSI through a second frequency domain resource of the transmission channel when it is monitored that the transmission channel is idle;

15. The network device of claim 14, wherein the SSB is frequency division multiplexed with the CORESET of the RMSI,

16. The network device of claim 15, wherein the second frequency-domain resource comprises only the first frequency-domain subband when a number of resource blocks, RBs, located on a low frequency side of the first frequency-domain resource is less than a preset number, N;

alternatively, the first and second electrodes may be,

wherein N is a positive integer.

17. The network device of claim 15, wherein the number of RBs of the first or second frequency-domain sub-band is greater than or equal to a preset number N, and wherein the number of RBs of the first or second frequency-domain sub-band is an integer multiple of N.

18. The network device of claim 14, wherein when the SSB and the core set of the RMSI are time-division multiplexed, the transmission channel comprises X consecutive RBs, the second frequency-domain resource comprises Y consecutive RBs, Y is a maximum integer that is an integer multiple of a preset number N and smaller than X, and X, Y and N are both positive integers.

19. The network device of claim 14, wherein the SSB has a center frequency point located on a starting resource element RE of a target RB; wherein the target RB is:

alternatively, the first and second electrodes may be,

a/2 th RB in the transmission channel;

alternatively, the first and second electrodes may be,

20. A network device comprising a processor, a memory, and a computer program stored on the memory and running on the processor, the processor implementing the steps of the information transmission method according to any one of claims 1 and 3 to 13 when executing the computer program.

21. A terminal, comprising:

22. The terminal of claim 21, wherein the SSB is frequency division multiplexed with the CORESET of the RMSI,

23. A terminal according to claim 22, wherein the second frequency domain resource comprises only the first frequency domain sub-band when the number of resource blocks, RBs, located on the low frequency side of the first frequency domain resource is less than a preset number, N;

alternatively, the first and second electrodes may be,

wherein N is a positive integer.

24. The terminal of claim 22, wherein the number of RBs of the first or second frequency-domain sub-band is greater than or equal to a preset number N, and wherein the number of RBs of the first or second frequency-domain sub-band is an integer multiple of N.

25. The terminal according to claim 21, wherein when the SSB and the core set of the RMSI are time-multiplexed, the transmission channel comprises X consecutive RBs, the second frequency-domain resource comprises Y consecutive RBs, Y is a maximum integer that is an integer multiple of a preset number N and smaller than X, and both X, Y and N are positive integers.

26. The terminal of claim 21, wherein the SSB has a center frequency point located on a starting resource element RE of a target RB; wherein the target RB is:

alternatively, the first and second electrodes may be,

a/2 th RB in the transmission channel;

alternatively, the first and second electrodes may be,

27. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and running on the processor, which computer program, when executed by the processor, carries out the steps of the information transmission method according to any one of claims 2 to 13.

28. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the information transmission method according to one of claims 1 to 13.